This study analyzed hypothalamic hormone levels in 17 patients with chronic migraine and found abnormalities compared to healthy controls. Specifically, the study found:
1) 47% of chronic migraine patients had a delayed peak in the nighttime melatonin level, while no controls did.
2) Chronic migraine patients who also had insomnia had significantly lower melatonin levels than patients without insomnia or controls.
3) 53% of chronic migraine patients had lower than normal prolactin peak levels, compared to only 22% of controls.
4) Chronic migraine patients had higher nighttime cortisol levels than controls.
These results suggest hypothalamic dysfunction in chronic migraine, shown by disrupted circadian
This document provides information on seizures in pediatrics. It discusses the types of seizures including focal, generalized, absence, atonic, tonic-clonic, myoclonic, infantile spasms, and febrile seizures. It also discusses status epilepticus and treatments for febrile seizures and status epilepticus. Common antiepileptic drugs are discussed including valproate sodium, carbamazepine, lamotrigine, their dosages, mechanisms of action, pharmacokinetics, and indications.
Leigh syndrome is a rare neurodegenerative disease caused by mitochondrial dysfunction from a genetic defect. It is characterized by bilateral brain lesions seen on imaging and variable symptoms. While it typically presents in infancy, it can occasionally present in adulthood. The diagnosis involves identifying characteristic brain lesions. Treatment focuses on nutritional supplementation like biotin and thiamine, as well as managing symptoms, but there is no cure for the underlying genetic condition.
This document provides information on West syndrome, including its classification, clinical manifestations, treatment, and prognosis. West syndrome is a severe epilepsy syndrome in infants characterized by infantile spasms, abnormal EEG findings called hypsarrhythmia, and developmental regression. It is classified based on its etiology as symptomatic, cryptogenic, or idiopathic. First-line treatment options include ACTH, vigabatrin, and corticosteroids. Prognosis depends on the underlying etiology, with idiopathic cases generally having a better prognosis than symptomatic cases. Outcomes include cognitive impairments, cerebral palsy, and in some cases mortality.
West syndrome is a severe epilepsy syndrome in infants characterized by infantile spasms, a chaotic EEG pattern called hypsarrhythmia, and developmental delays. It was first described in 1841 and is difficult to treat. Treatment options include adrenocorticotropic hormone (ACTH), vigabatrin, prednisone, pyridoxine, and anti-seizure medications like valproic acid. Prognosis depends on the underlying cause but many children experience cognitive impairments or other developmental issues even if seizures are controlled.
Immunomudulators in multiple_sclerosisSantosh Dash
The document summarizes immunomodulation in multiple sclerosis. It discusses the history and evolution of immunomodulatory therapies for MS including corticosteroids, interferons like IFN β-1a, IFN β-1b, glatiramer acetate, mitoxantrone, natalizumab, alemtuzumab, and oral medications like fingolimod. It covers their mechanisms of action, indications, dosages, evidence from clinical trials, side effects and contraindications. The goal of these disease-modifying therapies is to reduce relapses, disability progression, and new inflammatory lesions in the brain.
Three pronged approach to migraine epilepsy and neuropathic pain–role of oxca...webzforu
The document discusses the use of oxcarbazepine for the treatment of migraine, epilepsy, and neuropathic pain, noting that as an anti-epileptic drug it has better pharmacokinetic properties than carbamazepine with fewer drug interactions and side effects. It provides information on the prevalence, triggers, and classification of migraine as well as the relationship between migraine and epilepsy.
This document provides information on seizures in pediatrics. It discusses the types of seizures including focal, generalized, absence, atonic, tonic-clonic, myoclonic, infantile spasms, and febrile seizures. It also discusses status epilepticus and treatments for febrile seizures and status epilepticus. Common antiepileptic drugs are discussed including valproate sodium, carbamazepine, lamotrigine, their dosages, mechanisms of action, pharmacokinetics, and indications.
Leigh syndrome is a rare neurodegenerative disease caused by mitochondrial dysfunction from a genetic defect. It is characterized by bilateral brain lesions seen on imaging and variable symptoms. While it typically presents in infancy, it can occasionally present in adulthood. The diagnosis involves identifying characteristic brain lesions. Treatment focuses on nutritional supplementation like biotin and thiamine, as well as managing symptoms, but there is no cure for the underlying genetic condition.
This document provides information on West syndrome, including its classification, clinical manifestations, treatment, and prognosis. West syndrome is a severe epilepsy syndrome in infants characterized by infantile spasms, abnormal EEG findings called hypsarrhythmia, and developmental regression. It is classified based on its etiology as symptomatic, cryptogenic, or idiopathic. First-line treatment options include ACTH, vigabatrin, and corticosteroids. Prognosis depends on the underlying etiology, with idiopathic cases generally having a better prognosis than symptomatic cases. Outcomes include cognitive impairments, cerebral palsy, and in some cases mortality.
West syndrome is a severe epilepsy syndrome in infants characterized by infantile spasms, a chaotic EEG pattern called hypsarrhythmia, and developmental delays. It was first described in 1841 and is difficult to treat. Treatment options include adrenocorticotropic hormone (ACTH), vigabatrin, prednisone, pyridoxine, and anti-seizure medications like valproic acid. Prognosis depends on the underlying cause but many children experience cognitive impairments or other developmental issues even if seizures are controlled.
Immunomudulators in multiple_sclerosisSantosh Dash
The document summarizes immunomodulation in multiple sclerosis. It discusses the history and evolution of immunomodulatory therapies for MS including corticosteroids, interferons like IFN β-1a, IFN β-1b, glatiramer acetate, mitoxantrone, natalizumab, alemtuzumab, and oral medications like fingolimod. It covers their mechanisms of action, indications, dosages, evidence from clinical trials, side effects and contraindications. The goal of these disease-modifying therapies is to reduce relapses, disability progression, and new inflammatory lesions in the brain.
Three pronged approach to migraine epilepsy and neuropathic pain–role of oxca...webzforu
The document discusses the use of oxcarbazepine for the treatment of migraine, epilepsy, and neuropathic pain, noting that as an anti-epileptic drug it has better pharmacokinetic properties than carbamazepine with fewer drug interactions and side effects. It provides information on the prevalence, triggers, and classification of migraine as well as the relationship between migraine and epilepsy.
Women with Epilepsy: Role of newer anti-seizure drugsPramod Krishnan
Women with Epilepsy often have unique considerations when managing their condition. Hormonal fluctuations can impact seizure frequency, and some anti-seizure medications are associated with higher risks of birth defects, cognitive issues in offspring, menstrual irregularities, and bone health issues. Levetiracetam appears to carry lower risks during pregnancy and for bone health compared to other anti-seizure drugs like valproate, phenobarbital, and phenytoin, which should generally be avoided. Careful planning and medication management is important when considering pregnancy or contraception for women with epilepsy.
This document summarizes information about multiple system atrophy (MSA). MSA is a neurodegenerative disorder characterized by autonomic failure and motor symptoms. It has an estimated incidence of 0.6-0.7 per 100,000 people per year. Common features include parkinsonism in at least 90% of patients, orthostatic hypotension, and urinary dysfunction in over 80% of cases. The document discusses the types of tremors seen in MSA, respiratory issues like stridor, and prognostic factors like the presence of urinary incontinence which are associated with shorter survival times.
This guideline reviews evidence and recommendations for the management of status epilepticus (SE) in adults. SE is defined as prolonged seizure activity that risks neuronal injury. The preferred treatment for generalized convulsive SE is intravenous lorazepam or diazepam followed by phenytoin. Refractory SE requires anaesthetic doses of medications. Initial therapy for complex partial SE follows generalized convulsive SE treatment. Subtle SE often requires intravenous anaesthesia. Evidence supports benzodiazepines as first-line treatment but second-line options are based on observational studies and expert opinion due to lack of high-quality evidence.
This document discusses the relationship between pain and depression. It notes that around 30% of community members suffer from a mental health issue, but only a small portion receive treatment. Major depressive disorder is associated with functional and structural brain changes. Depression and pain commonly occur together and negatively impact health and quality of life. The neurobiology of depression and pain involve neurotransmitters like serotonin, norepinephrine, and dopamine. Depression and chronic pain have overlapping symptoms and biological underpinnings related to these neurotransmitter systems and brain regions like the hippocampus. The document examines theories on how depression and pain may influence each other.
Clinico pathologic case conference 2019, NeurologyPramod Krishnan
This presentation was part of the annual Clinico pathologic case conference of the Bengaluru Neurological Society for the year 2019. The case was provided by the Department of Neurology and pathology, NIMHANS, Bengaluru and i was the discussant. The clinical, radiological and investigation aspects of the case are discussed in detail and the final diagnosis based on histopathology was revealed in the end.
The Role of DaT Scan in Diagnosing Parkinson Disease Ade Wijaya
1) The diagnosis of Parkinson's disease is traditionally based on clinical examination, however around 20% of cases are initially misdiagnosed.
2) DaT scan is used when it is uncertain if clinical parkinsonism reflects degeneration of dopaminergic neurons, to assist in diagnosis and treatment decisions.
3) DaTscan imaging helps distinguish between nigrostriatal dopaminergic degeneration and other causes of parkinsonism, improving diagnostic accuracy and informing medication management.
This document summarizes key findings from several clinical trials investigating new oral treatments for multiple sclerosis (MS). The FREEDOMS trial found that fingolimod was more effective than placebo at reducing relapses in MS patients over 24 months. The CLARITY trial showed that short-term treatment with cladribine tablets for 8-20 days per year provided benefits for relapsing-remitting MS. The TRANSFORMS trial found that fingolimod was more effective than weekly intramuscular interferon beta-1a injections at reducing MS symptoms over 12 months. Both new oral therapies showed efficacy advantages compared to existing injectable treatments, but require ongoing monitoring for potential long-term adverse effects.
Right Temporal Lobe Meningioma presenting as postpartum depression: A case re...Apollo Hospitals
Meningiomas are tumors which arise from arachnoid cells and can occur both in the brain and spinal cord. Meningiomas can present with psychiatric symptoms (such as depression, anxiety disorders, or personality changes) in the absence of any neurologic signs or symptoms.
Fabry disease affects many parts of the heart and blood vessels. It can cause high blood pressure, an enlarged heart, heart rhythm problems, valve disease, blood vessel damage, heart attack, and sudden cardiac death. These complications are now the leading cause of death in Fabry patients. Advanced imaging techniques like echocardiograms, cardiac MRI, and T1 mapping can detect early heart changes before symptoms appear. Comprehensive screening and treatment of cardiovascular involvement in Fabry disease may allow earlier intervention and reduce morbidity and mortality.
Navigating anti epileptic medications in difficult to treat epilepsiesPramod Krishnan
1) Around 30% of epilepsy patients have drug refractory epilepsy (DRE) which is resistant to treatment with anti-epileptic drugs. Fewer than 1% of people with DRE are evaluated at epilepsy centers that can provide specialized diagnostic tests and treatments.
2) DRE can have severe consequences including developmental delays, increased risk of death, interference with education and employment, and increased risk of psychiatric issues. It also places a high economic burden.
3) For patients with DRE, an epilepsy center can provide specialized diagnostic testing, surgical evaluation, and non-surgical treatments like vagus nerve stimulation or responsive neurostimulation in addition to optimized medical management. Early referral to such centers is important to
This document summarizes various interventional treatments for headaches including occipital nerve blocks, pulsed radiofrequency of the occipital nerve, and occipital nerve stimulation. It provides epidemiological data on migraine and cluster headaches. It also discusses indications for occipital nerve blocks including various headache types. Peripheral nerve blocks are described as commonly used but with variable methodology. Effectiveness of occipital nerve stimulation is supported for various intractable headache conditions but lead migration is a technical challenge.
This document discusses refractory epilepsy, including definitions, epidemiology, mechanisms, diagnosis, and treatment approaches. It defines refractory epilepsy as the absence of response to two anti-epileptic drugs at reasonable doses, with a minimum seizure frequency of one per month. It estimates that 20% of people with epilepsy have refractory seizures, totaling around 1 million people in India. Causes of refractory epilepsy include drug transporter issues, target resistance, and intrinsic disease severity. Surgical treatment and alternative therapies like the ketogenic diet, vagus nerve stimulation, polymers, and electrical brain stimulation are reviewed as potential treatment options.
This is a lecture by Ruth S. Hwu, MD from the Ghana Emergency Medicine Collaborative. To download the editable version (in PPT), to access additional learning modules, or to learn more about the project, see http://openmi.ch/em-gemc. Unless otherwise noted, this material is made available under the terms of the Creative Commons Attribution Share Alike-3.0 License: http://creativecommons.org/licenses/by-sa/3.0/.
This document summarizes a case study of a 52-year-old man with treatment-refractory mood lability and aggression due to traumatic brain injury. He responded well to two separate trials of amantadine, with remission of symptoms during both trials. Amantadine is not commonly used but may be effective for these symptoms where other medications have failed or caused intolerable side effects. The case suggests amantadine should be considered more for treatment-refractory behavioral issues following traumatic brain injury.
Hello readers.................!!!!!!!!!!!!!!
This is my 32nd powerpoint.....its regarding a form of childhood epilepsy, known as "LENNOX-GASTAUT SYNDROME".
It has been dealt with in the Therapeutics way, and in precise format.
Do look into it and give your reviews!!!!
Thank you!!!!
@rxvichu-alwz4uh!!!!
:) :)
This document summarizes information about refractory epilepsy. It begins by defining refractory epilepsy as persistent seizures under antiepileptic drug treatment. It then discusses predictive factors of refractory epilepsy like epileptic syndrome, response to previous drugs, age at onset, and structural brain abnormalities. The document outlines evaluation and management approaches including optimizing medical treatment, surgical options like resection or palliation procedures, and other therapies like the ketogenic diet.
This document discusses depression, including its epidemiology, definitions, classification, diagnostic criteria, and treatment. Some key points:
- Depression is the 3rd leading cause of disease burden worldwide and is projected to become the leading cause by 2030.
- Major depression has a prevalence of 5% and 15% of the population will experience a major depressive episode at some point in their life.
- Depression is classified based on severity from mild to severe. Diagnosis requires a certain number of symptoms from major and minor criteria groups.
- Depression can be classified as unipolar (recurrent depression only) or bipolar (episodes of mania and depression).
- Causes of depression involve biological factors like neurotransmitter im
A guideline for discontinuing antiepileptic drugs in seizure-free patients – ...Dr. Rafael Higashi
The document discusses guidelines for discontinuing antiepileptic drug (AED) treatment in patients who have been seizure-free. It summarizes studies that identified factors associated with risk of seizure recurrence after stopping AEDs. For patients who are seizure-free for 2-5 years, have had only partial or generalized seizures, have a normal neurological exam and IQ, and a normalized EEG with treatment, the risk of recurrence is about 69% for children and 61% for adults. The guidelines recommend considering discontinuing AEDs for patients meeting these criteria. Future research is still needed to better predict individual patient risks.
Women with Epilepsy: Role of newer anti-seizure drugsPramod Krishnan
Women with Epilepsy often have unique considerations when managing their condition. Hormonal fluctuations can impact seizure frequency, and some anti-seizure medications are associated with higher risks of birth defects, cognitive issues in offspring, menstrual irregularities, and bone health issues. Levetiracetam appears to carry lower risks during pregnancy and for bone health compared to other anti-seizure drugs like valproate, phenobarbital, and phenytoin, which should generally be avoided. Careful planning and medication management is important when considering pregnancy or contraception for women with epilepsy.
This document summarizes information about multiple system atrophy (MSA). MSA is a neurodegenerative disorder characterized by autonomic failure and motor symptoms. It has an estimated incidence of 0.6-0.7 per 100,000 people per year. Common features include parkinsonism in at least 90% of patients, orthostatic hypotension, and urinary dysfunction in over 80% of cases. The document discusses the types of tremors seen in MSA, respiratory issues like stridor, and prognostic factors like the presence of urinary incontinence which are associated with shorter survival times.
This guideline reviews evidence and recommendations for the management of status epilepticus (SE) in adults. SE is defined as prolonged seizure activity that risks neuronal injury. The preferred treatment for generalized convulsive SE is intravenous lorazepam or diazepam followed by phenytoin. Refractory SE requires anaesthetic doses of medications. Initial therapy for complex partial SE follows generalized convulsive SE treatment. Subtle SE often requires intravenous anaesthesia. Evidence supports benzodiazepines as first-line treatment but second-line options are based on observational studies and expert opinion due to lack of high-quality evidence.
This document discusses the relationship between pain and depression. It notes that around 30% of community members suffer from a mental health issue, but only a small portion receive treatment. Major depressive disorder is associated with functional and structural brain changes. Depression and pain commonly occur together and negatively impact health and quality of life. The neurobiology of depression and pain involve neurotransmitters like serotonin, norepinephrine, and dopamine. Depression and chronic pain have overlapping symptoms and biological underpinnings related to these neurotransmitter systems and brain regions like the hippocampus. The document examines theories on how depression and pain may influence each other.
Clinico pathologic case conference 2019, NeurologyPramod Krishnan
This presentation was part of the annual Clinico pathologic case conference of the Bengaluru Neurological Society for the year 2019. The case was provided by the Department of Neurology and pathology, NIMHANS, Bengaluru and i was the discussant. The clinical, radiological and investigation aspects of the case are discussed in detail and the final diagnosis based on histopathology was revealed in the end.
The Role of DaT Scan in Diagnosing Parkinson Disease Ade Wijaya
1) The diagnosis of Parkinson's disease is traditionally based on clinical examination, however around 20% of cases are initially misdiagnosed.
2) DaT scan is used when it is uncertain if clinical parkinsonism reflects degeneration of dopaminergic neurons, to assist in diagnosis and treatment decisions.
3) DaTscan imaging helps distinguish between nigrostriatal dopaminergic degeneration and other causes of parkinsonism, improving diagnostic accuracy and informing medication management.
This document summarizes key findings from several clinical trials investigating new oral treatments for multiple sclerosis (MS). The FREEDOMS trial found that fingolimod was more effective than placebo at reducing relapses in MS patients over 24 months. The CLARITY trial showed that short-term treatment with cladribine tablets for 8-20 days per year provided benefits for relapsing-remitting MS. The TRANSFORMS trial found that fingolimod was more effective than weekly intramuscular interferon beta-1a injections at reducing MS symptoms over 12 months. Both new oral therapies showed efficacy advantages compared to existing injectable treatments, but require ongoing monitoring for potential long-term adverse effects.
Right Temporal Lobe Meningioma presenting as postpartum depression: A case re...Apollo Hospitals
Meningiomas are tumors which arise from arachnoid cells and can occur both in the brain and spinal cord. Meningiomas can present with psychiatric symptoms (such as depression, anxiety disorders, or personality changes) in the absence of any neurologic signs or symptoms.
Fabry disease affects many parts of the heart and blood vessels. It can cause high blood pressure, an enlarged heart, heart rhythm problems, valve disease, blood vessel damage, heart attack, and sudden cardiac death. These complications are now the leading cause of death in Fabry patients. Advanced imaging techniques like echocardiograms, cardiac MRI, and T1 mapping can detect early heart changes before symptoms appear. Comprehensive screening and treatment of cardiovascular involvement in Fabry disease may allow earlier intervention and reduce morbidity and mortality.
Navigating anti epileptic medications in difficult to treat epilepsiesPramod Krishnan
1) Around 30% of epilepsy patients have drug refractory epilepsy (DRE) which is resistant to treatment with anti-epileptic drugs. Fewer than 1% of people with DRE are evaluated at epilepsy centers that can provide specialized diagnostic tests and treatments.
2) DRE can have severe consequences including developmental delays, increased risk of death, interference with education and employment, and increased risk of psychiatric issues. It also places a high economic burden.
3) For patients with DRE, an epilepsy center can provide specialized diagnostic testing, surgical evaluation, and non-surgical treatments like vagus nerve stimulation or responsive neurostimulation in addition to optimized medical management. Early referral to such centers is important to
This document summarizes various interventional treatments for headaches including occipital nerve blocks, pulsed radiofrequency of the occipital nerve, and occipital nerve stimulation. It provides epidemiological data on migraine and cluster headaches. It also discusses indications for occipital nerve blocks including various headache types. Peripheral nerve blocks are described as commonly used but with variable methodology. Effectiveness of occipital nerve stimulation is supported for various intractable headache conditions but lead migration is a technical challenge.
This document discusses refractory epilepsy, including definitions, epidemiology, mechanisms, diagnosis, and treatment approaches. It defines refractory epilepsy as the absence of response to two anti-epileptic drugs at reasonable doses, with a minimum seizure frequency of one per month. It estimates that 20% of people with epilepsy have refractory seizures, totaling around 1 million people in India. Causes of refractory epilepsy include drug transporter issues, target resistance, and intrinsic disease severity. Surgical treatment and alternative therapies like the ketogenic diet, vagus nerve stimulation, polymers, and electrical brain stimulation are reviewed as potential treatment options.
This is a lecture by Ruth S. Hwu, MD from the Ghana Emergency Medicine Collaborative. To download the editable version (in PPT), to access additional learning modules, or to learn more about the project, see http://openmi.ch/em-gemc. Unless otherwise noted, this material is made available under the terms of the Creative Commons Attribution Share Alike-3.0 License: http://creativecommons.org/licenses/by-sa/3.0/.
This document summarizes a case study of a 52-year-old man with treatment-refractory mood lability and aggression due to traumatic brain injury. He responded well to two separate trials of amantadine, with remission of symptoms during both trials. Amantadine is not commonly used but may be effective for these symptoms where other medications have failed or caused intolerable side effects. The case suggests amantadine should be considered more for treatment-refractory behavioral issues following traumatic brain injury.
Hello readers.................!!!!!!!!!!!!!!
This is my 32nd powerpoint.....its regarding a form of childhood epilepsy, known as "LENNOX-GASTAUT SYNDROME".
It has been dealt with in the Therapeutics way, and in precise format.
Do look into it and give your reviews!!!!
Thank you!!!!
@rxvichu-alwz4uh!!!!
:) :)
This document summarizes information about refractory epilepsy. It begins by defining refractory epilepsy as persistent seizures under antiepileptic drug treatment. It then discusses predictive factors of refractory epilepsy like epileptic syndrome, response to previous drugs, age at onset, and structural brain abnormalities. The document outlines evaluation and management approaches including optimizing medical treatment, surgical options like resection or palliation procedures, and other therapies like the ketogenic diet.
This document discusses depression, including its epidemiology, definitions, classification, diagnostic criteria, and treatment. Some key points:
- Depression is the 3rd leading cause of disease burden worldwide and is projected to become the leading cause by 2030.
- Major depression has a prevalence of 5% and 15% of the population will experience a major depressive episode at some point in their life.
- Depression is classified based on severity from mild to severe. Diagnosis requires a certain number of symptoms from major and minor criteria groups.
- Depression can be classified as unipolar (recurrent depression only) or bipolar (episodes of mania and depression).
- Causes of depression involve biological factors like neurotransmitter im
A guideline for discontinuing antiepileptic drugs in seizure-free patients – ...Dr. Rafael Higashi
The document discusses guidelines for discontinuing antiepileptic drug (AED) treatment in patients who have been seizure-free. It summarizes studies that identified factors associated with risk of seizure recurrence after stopping AEDs. For patients who are seizure-free for 2-5 years, have had only partial or generalized seizures, have a normal neurological exam and IQ, and a normalized EEG with treatment, the risk of recurrence is about 69% for children and 61% for adults. The guidelines recommend considering discontinuing AEDs for patients meeting these criteria. Future research is still needed to better predict individual patient risks.
1) A 58-year old male developed central pontine myelinolysis (CPM) and extrapontine myelinolysis (EPM) four days after being discharged from the ICU following treatment for hyponatremia.
2) CPM was first described in 1959 as a demyelinating condition affecting the pons seen in alcoholic and malnourished patients. Subsequent studies found it can result from rapid correction of hyponatremia.
3) The pathogenesis of CPM/EPM involves rapid correction of hyponatremia causing an osmotic gradient that opens the blood-brain barrier, allowing blood factors to enter and cause demyelination. The specific
Nonketotic hyperglycinemia in two siblings with neonatal seizures시헌 김
Two siblings presented with neonatal seizures. Patient 1 was diagnosed with nonketotic hyperglycinemia (NKH) based on elevated glycine levels in cerebrospinal fluid and plasma. Treatment with sodium benzoate and dextromethorphan failed to control seizures and the patient died. Patient 2 had similar presentation and was retrospectively diagnosed with NKH. NKH is a rare genetic disorder caused by a defect in glycine metabolism, presenting with seizures in the first days of life and rapid neurological deterioration if untreated.
Nonketotic hyperglycinemia in two siblings with neonatal seizures (1)시헌 김
Two siblings presented with neonatal seizures. Patient 1 exhibited myoclonic seizures, hiccups, and apnea and was ultimately diagnosed with nonketotic hyperglycinemia (NKH) based on elevated glycine levels in cerebrospinal fluid and plasma. Despite treatment with sodium benzoate and dextromethorphan, the patient's condition deteriorated and he died at 3 weeks of age. Patient 2 later exhibited similar symptoms and biochemical abnormalities confirming NKH. NKH is a rare genetic disorder caused by a defect in glycine degradation.
(a) Several brain areas have been found to have abnormal activity or structure in patients with major depressive disorder (MDD) compared to healthy controls, including the prefrontal cortex, anterior cingulate cortex, hippocampus, amygdala, and orbitofrontal cortex.
(b) Imaging studies have found both hypoactivity and hyperactivity in different areas, and treatment has been shown to help normalize some of these abnormalities.
(c) The prefrontal cortex and limbic system including the hippocampus and amygdala appear to be particularly involved, and their structural and functional connections may contribute to MDD.
Major Depressive Disorder is characterized by one or more episodes of depression without a history of mania. Its etiology is complex with several factors like genetics, environment, and biology contributing. Symptoms include decreased levels of neurotransmitters like serotonin and norepinephrine. Treatment involves pharmacological therapies like SSRIs, TCAs, and MAOIs to reduce symptoms as well as psychotherapy. The goals are to reduce acute symptoms, facilitate a return to normal functioning, and prevent future episodes. Treatment is conducted over acute, continuation, and maintenance phases.
1) High risk factors for seizure recurrence after a first unprovoked seizure include epileptiform abnormalities on EEG, a remote symptomatic cause identified on clinical history or neuroimaging, and an abnormal neurologic examination with focal findings or mental retardation.
2) AED treatment may be considered for patients with one or more of these high risk factors. While immediate AED treatment can reduce short-term seizure recurrence rates by 30-50%, it has little impact on long-term outcome and individual patient preferences regarding adverse effects should be taken into account.
3) Other potential risk factors with uncertain significance include a history of febrile seizures, family history of epilepsy, and seizures occurring during sleep. Status epilepticus
This document discusses chronobiology and fatigue disorders. It notes that chronobiology examines periodic biological rhythms related to light and lunar cycles. The most important rhythm is the circadian rhythm, which is a roughly 24-hour cycle regulated by circadian clocks in the hypothalamus. Fatigue disorders like chronic fatigue syndrome are debilitating and cause severe fatigue, pain, and other symptoms. The document suggests circadian rhythm disturbances may contribute to fatigue disorders, as seen in lower melatonin and cortisol levels in patients, which can impair sleep quality and increase pain/stiffness. Understanding circadian rhythms could help optimize treatment timing for fatigue disorder patients.
Isolated Cerebellar Stroke Masquerades as DepressionZahiruddin Othman
Two case reports illustrate how isolated cerebellar stroke can masquerade as depression. In both cases, patients presented with vertigo and were initially misdiagnosed with depression due to seeming uncooperative behavior. Further examination revealed neurological deficits and imaging showed infarcts in the cerebellum. Cerebellar stroke can cause severe vertigo, nausea, and inability to walk that mimic depressive symptoms. However, the acute onset and lack of mood changes suggest an organic cause. Physicians must consider cerebellar stroke and fully examine for neurological signs when vertigo is present to avoid misdiagnosing potentially life-threatening conditions as psychiatric disorders.
The document discusses neuropsychiatric systemic lupus erythematosus (NPSLE), presenting cases seen at UMMC. It notes varied NPSLE manifestations based on revised ACR criteria. Diagnosis is challenging due to subtle presentations and differential diagnoses. MRI is very useful for diagnosis while CSF analysis and specific antibodies provide additional information. Treatment approaches range from symptomatic therapy for mild disease to high-dose corticosteroids and immunosuppressants like cyclophosphamide for severe disease. The current practice at UMMC combines intravenous steroids with cyclophosphamide regimes.
This patient, a 65-year-old male, presented with 6 months of gradually worsening gait difficulties and incoordination. Over the past 4 months, he developed forgetfulness, hallucinations, and sensorium changes. Exams found rigidity, myoclonic jerks, and a non-reactive semi-conscious state. Imaging and tests were suggestive of Creutzfeldt-Jakob disease (CJD), a prion disease characterized by spongiform changes in the brain. A definitive diagnosis requires brain biopsy or autopsy.
This document provides an overview of prion diseases, also known as transmissible spongiform encephalopathies (TSEs). It defines prion diseases as progressive neurodegenerative disorders that can affect both humans and animals. The causative agent is an abnormal prion protein (PrPsc) which induces abnormal folding of normal prion proteins in neurons. Several human and animal prion diseases are described, including their signs, symptoms, transmission methods, and neuropathological features. The mechanism of prion propagation and the role of the normal (PrPc) and abnormal (PrPsc) prion proteins are explained.
1179journal.publications.chestnet.org Th e PathophysSantosConleyha
The document discusses the pathophysiology of insomnia across multiple levels of analysis, with a focus on hyperarousal as a central theme. It summarizes current knowledge on insomnia's genetic, molecular, cellular, and neurological underpinnings. The document proposes a model integrating evidence that insomnia may involve heightened physiological, cognitive, and emotional arousal that interferes with disengagement from the environment and the ability to fall asleep. Understanding insomnia's pathophysiology could provide insights into how and why it develops and is maintained.
A review of literature about Stiripentol and Rufinamide and their role in Dravets and Lennox Gastaut Syndrome respectively. It also looks at off label indications of these two orphan drugs.
Depressive illness can be characterized by a major depressive episode involving depressed mood and loss of interest for at least two weeks, accompanied by additional symptoms. Depression is a significant contributor to the global disease burden. The lifetime risk of developing a severe depressive episode is 12-16%. Neurobiological factors like the GSK3beta gene and decreased levels of brain-derived neurotrophic factor are implicated in depression. Physical symptoms are commonly the chief complaint in depressed patients, and there is overlap in the neurochemistry of depression and pain involving serotonin and norepinephrine. Untreated somatic depression can lead to structural brain changes and increased risk of persistent pain.
Similar to Hypothalamic involvement in chronic migraine (20)
Dimensões básicas da religiosidade belo-horizontinaMario Peres
O documento descreve os resultados de uma pesquisa sobre religião realizada em Belo Horizonte entre 2001-2002. Os principais achados são: 1) Os entrevistados admitiram em média 6,1 crenças, indicando um estilo sincrético de religiosidade; 2) As crenças cristãs fundamentalistas e democráticas corresponderam a 80,1% do total, mostrando a predominância do cristianismo; 3) Entre 30-52% dos entrevistados frequentavam ou estavam dispostos a frequentar diferentes instituições e rituais
O documento apresenta dados sobre o perfil religioso da população brasileira, mostrando que 64% se declaram católicos, 17% pentecostais e 5% espíritas. Apresenta também dados sobre o que a população brasileira acredita, como em Deus, milagres e vida após a morte.
2011porquepesquisassaudeespiritualidadeMario Peres
1) O documento discute a importância da pesquisa sobre a relação entre saúde e espiritualidade. 2) Muitos pacientes se identificam como religiosos e gostariam que sua espiritualidade fosse considerada no tratamento. 3) A religião pode influenciar o enfrentamento da doença e isolamento social quando internados, bem como decisões médicas.
2011apresentacao ps epesquisassaudeespiritualidadeMario Peres
O documento apresenta um curso de pós-graduação sobre pesquisas em saúde e espiritualidade. O curso tem como objetivo capacitar pesquisadores e profissionais de saúde na metodologia de pesquisa sobre espiritualidade e saúde. Ele é composto por três partes abordando espiritualidade e religião, metodologia de pesquisa, e espiritualidade na prática clínica.
Existem várias causas para dor de cabeça, incluindo doenças simples como infecções e sinusite, e doenças graves como tumores cerebrais e AVCs. As dores de cabeça podem ser classificadas como cefaleias primárias como enxaqueca ou tensional, ou cefaleias secundárias causadas por outra doença subjacente. Fatores como cafeína podem desencadear dores de cabeça.
Anticonvulsivantes no tratamento da dor, enxaqueca, dor de cabeca, fibromialgiaMario Peres
Aula dada pelo Dr Mario Peres na III Jornada do American College of Physicians - Hospital Albert Einstein sobre anticonvulsivantes no tratamento da dor neuropática, dor de cabeça, enxaqueca, fibromialgia
Nano-gold for Cancer Therapy chemistry investigatory projectSIVAVINAYAKPK
chemistry investigatory project
The development of nanogold-based cancer therapy could revolutionize oncology by providing a more targeted, less invasive treatment option. This project contributes to the growing body of research aimed at harnessing nanotechnology for medical applications, paving the way for future clinical trials and potential commercial applications.
Cancer remains one of the leading causes of death worldwide, prompting the need for innovative treatment methods. Nanotechnology offers promising new approaches, including the use of gold nanoparticles (nanogold) for targeted cancer therapy. Nanogold particles possess unique physical and chemical properties that make them suitable for drug delivery, imaging, and photothermal therapy.
Congestive Heart failure is caused by low cardiac output and high sympathetic discharge. Diuretics reduce preload, ACE inhibitors lower afterload, beta blockers reduce sympathetic activity, and digitalis has inotropic effects. Newer medications target vasodilation and myosin activation to improve heart efficiency while lowering energy requirements. Combination therapy, following an assessment of cardiac function and volume status, is the most effective strategy to heart failure care.
Computer in pharmaceutical research and development-Mpharm(Pharmaceutics)MuskanShingari
Statistics- Statistics is the science of collecting, organizing, presenting, analyzing and interpreting numerical data to assist in making more effective decisions.
A statistics is a measure which is used to estimate the population parameter
Parameters-It is used to describe the properties of an entire population.
Examples-Measures of central tendency Dispersion, Variance, Standard Deviation (SD), Absolute Error, Mean Absolute Error (MAE), Eigen Value
Gene therapy can be broadly defined as the transfer of genetic material to cure a disease or at least to improve the clinical status of a patient.
One of the basic concepts of gene therapy is to transform viruses into genetic shuttles, which will deliver the gene of interest into the target cells.
Safe methods have been devised to do this, using several viral and non-viral vectors.
In the future, this technique may allow doctors to treat a disorder by inserting a gene into a patient's cells instead of using drugs or surgery.
The biggest hurdle faced by medical research in gene therapy is the availability of effective gene-carrying vectors that meet all of the following criteria:
Protection of transgene or genetic cargo from degradative action of systemic and endonucleases,
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Viruses are naturally evolved vehicles that efficiently transfer their genes into host cells.
Choice of viral vector is dependent on gene transfer efficiency, capacity to carry foreign genes, toxicity, stability, immune responses towards viral antigens and potential viral recombination.
There are a wide variety of vectors used to deliver DNA or oligo nucleotides into mammalian cells, either in vitro or in vivo.
The most common vector system based on retroviruses, adenoviruses, herpes simplex viruses, adeno associated viruses.
- Video recording of this lecture in English language: https://youtu.be/RvdYsTzgQq8
- Video recording of this lecture in Arabic language: https://youtu.be/ECILGWtgZko
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The biomechanics of running involves the study of the mechanical principles underlying running movements. It includes the analysis of the running gait cycle, which consists of the stance phase (foot contact to push-off) and the swing phase (foot lift-off to next contact). Key aspects include kinematics (joint angles and movements, stride length and frequency) and kinetics (forces involved in running, including ground reaction and muscle forces). Understanding these factors helps in improving running performance, optimizing technique, and preventing injuries.
Dr. Tan's Balance Method.pdf (From Academy of Oriental Medicine at Austin)GeorgeKieling1
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Organization
Academy of Oriental Medicine at Austin
Academy of Oriental Medicine at Austin
Academy of Oriental Medicine at Austin
About AOMA: The Academy of Oriental Medicine at Austin offers a masters-level graduate program in acupuncture and Oriental medicine, preparing its students for careers as skilled, professional practitioners. AOMA is known for its internationally recognized faculty, award-winning student clinical internship program, and herbal medicine program. Since its founding in 1993, AOMA has grown rapidly in size and reputation, drawing students from around the nation and faculty from around the world. AOMA also conducts more than 20,000 patient visits annually in its student and professional clinics. AOMA collaborates with Western healthcare institutions including the Seton Family of Hospitals, and gives back to the community through partnerships with nonprofit organizations and by providing free and reduced price treatments to people who cannot afford them. The Academy of Oriental Medicine at Austin is located at 2700 West Anderson Lane. AOMA also serves patients and retail customers at its south Austin location, 4701 West Gate Blvd. For more information see www.aoma.edu or call 512-492-303434.
“Psychiatry and the Humanities”: An Innovative Course at the University of Mo...Université de Montréal
“Psychiatry and the Humanities”: An Innovative Course at the University of Montreal Expanding the medical model to embrace the humanities. Link: https://www.psychiatrictimes.com/view/-psychiatry-and-the-humanities-an-innovative-course-at-the-university-of-montreal
Ageing, the Elderly, Gerontology and Public Health
Hypothalamic involvement in chronic migraine
1. J Neurol Neurosurg Psychiatry 2001;71:747–751 747
Hypothalamic involvement in chronic migraine
M F P Peres, M Sanchez del Rio, M L V Seabra, S Tufik, J Abucham, J Cipolla-Neto,
S D Silberstein, E Zukerman
Abstract overuse,6 generalised anxiety disorder (70%),7
Objectives—Chronic migraine (CM), pre- major depression (80%),7 and insomnia
viously called transformed migraine, is a (71%).8
frequent headache disorder that aVects Little is known about the causes and mecha-
2%-3% of the general population. Analge- nisms of CM. The transformation of episodic
sic overuse, insomnia, depression, and migraine to CM (>15 days/month) remains an
anxiety are disorders that are often co- enigma. Several mechanisms have been alleged
morbid with CM. Hypothalamic dysfunc- to be the cause of the change in frequency and
tion has been implicated in its symptoms, including chronic neurogenic in-
pathogenesis, but it has never been stud- flammation, central sensitisation, defective
ied in patients with CM. The aim was to central pain modulation, hypothalamic dys-
analyze hypothalamic involvement in CM function, or a combination of these.
by measurement of melatonin, prolactin, Hypothalamic involvement in the pathogen-
growth hormone, and cortisol nocturnal esis of cluster headache is well known,9 whereas
secretion. the role of the hypothalamus in the pathophysi-
Methods—A total of 338 blood samples ology of chronic migraine has never been stud-
(13/patient) from 17 patients with CM and ied. For this reason we chose to explore the
nine age and sex matched healthy volun- hypothalamic-tuberoinfundibular system (pro-
teers were taken. Melatonin, prolactin, lactin, growth hormone), the hypothalamic-
growth hormone, and cortisol concentra- hypophyseal-adrenal axis (cortisol), and pineal
tions were determined every hour for 12 gland function (melatonin) in CM.
hours. The presence of comorbid disor-
ders was also evaluated.
Results—An abnormal pattern of hy-
pothalamic hormonal secretion was found Material and methods
in CM. This included: (1) a decreased A study was performed from February to April
Sao Paulo Headache nocturnal prolactin peak, (2) increased 1999, at Sao Paulo Federal University Head-
Center, R Maestro cortisol concentrations, (3) a delayed noc- ache Clinic. A total of 26 subjects were enrolled
Cardim, 887 01323-001, turnal melatonin peak in patients with in the study. All subjects provided written con-
Sao Paulo SP, Brazil CM, and (4) lower melatonin concentra-
M F P Peres
sent for the experimental procedure approved
tions in patients with CM with insomnia. by the Sao Paulo federal university ethics com-
JeVerson Headache Growth hormone secretion did not diVer mittee. Seventeen patients, 14 women and
Center, Thomas from controls. three men, aged 31 (SD 9) met the criteria of
JeVerson University Conclusion—These results support hy- Silberstein and Lipton6 for CM. Nine healthy
Hospital, Philadelphia pothalamic involvement in CM, shown by volunteers, seven women and two men, aged 29
PA, USA a chronobiologic dysregulation, and a
M Sanchez del Rio (SD 6), also participated in the study as
S D Silberstein
possible hyperdopaminergic state in pa- controls.
tients with CM. Insomnia might be an Eleven of the patients were overusing
Federal University of important variable in the study findings. analgesic drugs (nine were overusing dipyrone,
Sao Paulo, Brazil (J Neurol Neurosurg Psychiatry 2001;71:747–751) three caVeine, two isometeptene, two acetyl-
M F P Peres
Keywords: chronic migraine; prolactin; cortisol; mela-
salicilic acid, two acetaminophen, and two
M L V Seabra
S Tufik tonin; hypothalamus ergotamine. Four were diagnosed with fibro-
J Abucham myalgia and eight with insomnia (table 1).
All patients with CM were instructed not to
Universidade de Sao Chronic migraine (CM) is a debilitating disor- take acute medication more than 2 or 3 days a
Paulo—Instituto des week during the week before the blood
Ciencias Biomedicas
der that aVects 2.4% of the general population1
J Cipolla-Neto and accounts for most consultations in head- determination. None had taken any preventive
ache clinics—40%2 to 65%.3 Because CM medication for at least 3 months before the
Hospital Israelita aVects people during their peak productive study. None had hypertension, alcoholism, or
Albert Einstein years, it imposes a significant decrease in their history of any relevant medical disease, and
E Zukerman quality of life and considerable economical none smoked. Hormone concentrations were
Correspondence to:
burden to society.4 determined within 1 week after enrollment.
Dr M F P Peres, Sao Paulo Patients with CM often have a history of epi- Subjects were admitted to hospital and kept
Headache Center, R Maestro sodic migraine beginning in their teenage under controlled environmental luminosity
Cardim, 887 01323-001, Sao years. The headache frequency increases over conditions not exceeding 50 Lux. A venous line
Paulo SP, Brazil
marioperes@yahoo.com months or years, and the associated symptoms was placed at 1800 and blood samples were
of nausea, vomiting, photophobia, and phono- taken every hour from 1900 to 0700. A total of
Received 29 December 2000 phobia become less prominent.5 Chronic mi- 13 samples/subject were collected. Women’s
and in revised form
1 May 2001 graine is a complex syndrome with many asso- samples were obtained during the follicular
Accepted 20 July 2001 ciated conditions including acute medication phase of the menstrual cycle.
www.jnnp.com
2. 748 Peres, Sanchez del Rio, Seabra, et al
Concentrations of hormones were deter- A
mined in each blood sample by radioimmu- 100
CM n = 17
noassay The intra-assay and interassay coeY- 90
Control n = 9
cients of variation (CVs ) for the assays were as 80
Melatonin (pg/ml)
follows: prolactin 4% and 7%; cortisol 4% and 70
6%; growth hormone 5% and 8%; and 60
melatonin 6% and 10% respectively. Four 50
patients did not have growth hormone 40
measured, two because their body mass index 30
was greater than 30, and two because they were
20
21 years of age or younger (table 1).
10
Depression was assessed by the Beck depres-
sion inventory II,10 and anxiety by the trait and 0
state anxiety inventory.11 The American Col- B
120
lege of Rheumatology diagnostic criteria were (+) Insomnia n = 8
110
used for the diagnosis of fibromyalgia.12 100 (–) Insomnia n = 9
Patients were diagnosed with insomnia accord-
Melatonin (pg/ml)
90
ing to the criteria shown: 80
x DiYculty of sleep onset or maintenance 70
x Insomnia at least three times a week for at 60
least 1 month 50
x Insomnia interfering with daily personal 40
functioning 30
x Patient fulfills the proposed diagnostic crite- 20
ria of Silberstein and Lipton6 for CM. 10
0
19 20 21 22 23 0 1 2 3 4 5 6 7 8
Time (h)
ANALYSIS
The time of peak, peak concentration, area Figure 1 Melatonin nocturnal profile in patients with
under the curve (AUC), and the average of 13 CM v controls and patients with CM with insomnia v
without insomnia.
samples in patients versus controls for each
hormone were analyzed. We also accounted for patients and controls. Pearson’s test was used
other variables such as depression, anxiety, for the correlation analysis. Values are ex-
analgesic overuse, insomnia, and fibromyalgia. pressed as means (SD). The level of signifi-
A phase delay in the melatonin nocturnal peak cance was taken as p<0.05.
was considered if the time of the peak occurred
after 0300.13 Results
The Mann-Whitney rank sum test and MELATONIN
student’s t test were used to compare the Eight patients with CM (47%) had a phase
means, peak concentrations, and AUCs be- delay in the melatonin peak whereas none of
tween subgroups (depression, anxiety, analge- the controls had (p<0.05, fig 1). There was no
sic overuse, insomnia, and fibromyalgia). Fish- significant diVerence in nocturnal melatonin
er’s exact test was used for the time of peak secretion between patients and controls (40.3
analysis. Analysis of variance (ANOVA) with (19.1) v 43.2 (16.0) pg/ml, respectively).
repeated measures was used to compare Patients who had CM plus insomnia (n=8)
Table 1 Clinical characteristics of the patients had melatonin concentrations (28.0 (19.9)
pg/ml), AUC (347.5 (128.6) pg.h/ml), and
CM Years of peak concentration (50.3 (19.6) pg/ml) that
patient Age Sex CM Fibromyalgia Insomnia Analgesic overuse
were significantly lower than those in patients
1 27 F 0.25 − with CM without insomnia (51.9 (10.3) pg/ml;
2 21 M 0.86 − 643.3 (238.0) pg.h/ml, and 111.9 (45.7) pg/ml,
3 25 F 2 +
4 28 F 2 Aspirin, caVeine respectively, all p<0.05) and that were also sig-
5 47 F 16 + Ergotamine, dipirone nificantly lower than those in controls. There
6 16 F 4 −
7 34 M 20 + −
was no diVerence in time of peak or in the pro-
8 25 F 3 + + Dipirone lactin, cortisol, or growth hormone concentra-
9 35 F 10 + Dipirone, aspirin, acetaminophen tions and between patients with and without
10 23 F 5 Dipirone
11 37 F 6 + + Dipirone, caVeine nocturnal melatonin phase delay.
12 28 F 3 + Ergotamine, acetaminophen
13 38 M 20 + + − PROLACTIN
14 46 F 20 Dipirone
15 26 F 1 Dipirone, isomepthene Fifty three per cent of patients had peak
16 44 F 30 + Dipirone, caVeine, aspirin concentrations of prolactin lower than 25
17 27 F 10 Dipirone, isomepthene ng/ml (18 (3) ng/ml), but only two of the nine
Controls controls did (15.6 ng/ml) (p<0.05; fig 2)). The
18 28 F − − − −
19 31 F − − − − mean concentration of prolactin in patients
20 22 M − − − − with CM was not significantly diVerent from
21 44 F − − − − controls (26 (11) ng/ml v 37 (17) ng/ml
22 24 F − − − −
23 29 F − − − − respectively, p=0.06). There was no significant
24 27 F − − − − diVerence in the mean prolactin peak in
25 30 F − − − −
26 27 M − − − −
patients with CM with or without analgesic
overuse (23 (8) v 31 (13) ng/ml). There was no
www.jnnp.com
3. Hypothalamic involvement in chronic migraine 749
A We found decreased prolactin peak secretion,
CM n = 17 increased cortisol concentrations, a phase delay
32 in the melatonin peak, and lower melatonin
Control n = 9
28 concentrations in patients with CM with
insomnia.
Prolactin (ng/ml)
24
20 MELATONIN
Lower melatonin concentrations have been
16 reported in episodic migraine, menstrual mi-
12 graine, and cluster headache. This is the first
study of melatonin in patients with CM.
8 Forty seven per cent of patients with CM
4 had a significant phase delay in the melatonin
peak, and half had insomnia. Melatonin
0 concentrations, peak secretion, and AUCs were
B significantly lower in patients with CM who
22 had insomnia than in controls and patients
20 with CM without insomnia.
18
Lower melatonin concentrations, but not a
phase shift in the nocturnal peak, have been
16
Cortisol (µg/dl)
reported in patients with insomnia.14 A phase
14 delay in the nocturnal melatonin peak has been
12 reported in patients with delayed sleep phase
10 syndrome (DSPS),15 and these patients treated
8 with 5 mg melatonin had a great improvement
6 of both sleep and its associated headaches.16
4
The circadian rhythm of melatonin secretion
is regulated by the suprachiasmatic nucleus in
2
the hypothalamus.17 The phase delay in the
0 melatonin peak found in patients with CM
19 20 21 22 23 0 1 2 3 4 5 6 7 8
Time (h) supports the theory that hypothalamic involve-
ment in CM leads to a chronobiological
Figure 2 Prolactin and cortisol nocturnal profile in
patients with CM v controls. dysfunction; however, it is not known whether
it is a cause or a consequence of the disease. It
significant diVerence in the mean or AUC could also be due to an underlying delayed
between patients and controls or between sleep phase syndrome and other sleep disorder
patients with or without analgesic overuse and comorbidity.
with or without insomnia. Melatonin is a potent endogenous scavenger
of reactive oxygen species acting as a neuropro-
CORTISOL tective agent in processes involving free radical
Patients had higher cortisol concentrations formation and excitatory amino acid release.18
than controls (10.3 (4.3) v 6.7 (1.2) µg/dl; Evidence in laboratory animals shows that this
higher AUC (101.7 (49.0) v 76.6 (14.3) µg.h/ neuroprotective action is probably mediated
dl); and higher peak (22.5 (14.2) v 18.6 (4.1) through inhibition of NF-kappaB, a peptide
µg/dl); all p<0.05, fig 2)). There were no upstream of tumour necrosis factor (TNF ),
significant diVerences between patients with or which is known to be involved in inflammatory
without insomnia, drug overuse, or fibromyal- processes and sensitisation19 It is hypothesised
gia. that dysfunction in melatonin secretion can
There was an increase in cortisol concentra- favour sensitisation and persistence of inflam-
tion between 2300 and 0100 that deviated matory products. Melatonin receptors have
from the expected pattern with respect to con- also been found in cerebral arteries and in the
trols, although this increase did not reach hypothalamus.20
significance. Melatonin may have a role in the treatment
of CM, particularly in those patients with
GROWTH HORMONE insomnia, but further studies are necessary to
There was no diVerence between patients and confirm this. Its other favourable qualities for
controls in growth hormone secretion (mean CM treatment include its analgesic proper-
2.0 (1.2) v 2.9 (1.9) ng/dl, respectively). ties,21 and the fact that it potentiates a GABA
Repetitive measure analysis failed to show any inhibitory eVect22 and inhibits prostaglandin E
significant diVerence. Analysis of the sub- synthesis.23 Melatonin is a sensitive marker of
groups did not show any diVerence in concen- endogenous rhythms24 and is thought to play an
trations or time of peak. important part in the adaptative mechanisms
to changing enviromental and endogenous
Discussion stimuli.25
Prolactin, growth hormone, cortisol, and mela-
tonin concentrations were determined every PROLACTIN
hour for 12 hours to investigate the role of the Patients with chronic migraine show a de-
hypothalamus in chronic migraine. The hor- creased nocturnal prolactin peak. Studies have
mones were measured during the night as the reported normal prolactin values in episodic
highest concentrations are usually at this time. migraine,26–29 but none of them analyzed the
www.jnnp.com
4. 750 Peres, Sanchez del Rio, Seabra, et al
nocturnal prolactin profile. This is the first GROWTH HORMONE
study on prolactin concentrations in CM. Growth hormone regulation is complex; neu-
Based on the hypersensitivity of dopamine ropeptides, neurotransmitters, and opioids are
receptors that some migraineurs manifest, involved. Dopamine also inhibits growth hor-
modulating dopaminergic neurotransmission mone secretion in the hypophysis,51 and the
has been a therapeutic target. This is demon- study of this hormone is another indirect way
strated by the induction of yawning, nausea, to address the dopaminergic system. Our data
vomiting, and hypotension by dopaminergic did not show any significant diVerence in the
agonists.30 31 In addition, some migraineurs analysis of growth hormone. However, any dif-
show allelic variations within the DRD2 gene ferences may not have been great enough to be
that has been hypothesised to predispose to a detected with the small sample studied. The
hypersensitive state to dopamine.32 Prolactin role of growth hormone in headaches remains
secretion is one measure of dopaminergic unknown.
function, as dopamine is its main inhibitory
factor. The measurement of prolactin can indi-
rectly provide information on the dopaminer- Conclusion
gic system in CM. We found an abnormal pattern of hypotha-
We hypothesise that there is a sustained noc- lamic hormonal secretion in CM. This com-
turnal inhibition of prolactin by dopamine and, prised: (1) a decreased nocturnal prolactin
therefore, an indirect increase in dopamine peak, (2) increased cortisol concentrations, (3)
secretion. Many antidopaminergic agents have a delayed nocturnal melatonin peak in patients
been successfully used in acute (droperidol,33 34 with CM, and (4) lower melatonin concentra-
chlorpromazine,35 prochlorperazine,36 metoclo- tions in patients with CM with insomnia.
pramide, domperidone,37 haloperidol38), and Secretion of growth hormone did not diVer
preventive (flunarizine,39 olanzapine (personal from controls. Overall, these results support
communication)) headache treatment. Our the involvement of the hypothalamus in the
findings support the use of these drugs in CM, pathophysiology of CM as shown by a chrono-
but clinical trials are needed to confirm their biological dysregulation, and a possible hyper-
eYcacy. dopaminergic state in patients with CM.
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