1) The document describes a case of a 50-year-old female patient presenting with low back ache. MRI images show degenerative changes at L4-L5 with reduced disc height and a linear hyperintensity noted at the same level.
2) It provides information on Baastrup's disease, also known as kissing spines disease, which is a type of pseudoarthrosis between adjacent lumbar spinous processes. Repeated flexion and extension can cause ligament damage and spur formation.
3) Imaging findings on lateral spine radiographs, MRI, and bone scans are described to identify the pathology. Treatment options including rest, cavity resection, and fusion surgery are mentioned.
Baastrup syndrome or kissing spine disease is an importent cause of mid back pain.
In this presentation we will discuss the role of imaging in its diagnosis
Baastrup syndrome or kissing spine disease is an importent cause of mid back pain.
In this presentation we will discuss the role of imaging in its diagnosis
Lumbar spinal stenosis perhaps is understood best as a clinicopathologic disorder: narrowing of the lumbar spinal canal and the nerve root canals (causing central and lateral recess stenosis respectively) typically is brought about by the process of osteoarthritis and leads to compression of the contents of the canals the neural and vascular structures, causing neurologic symptoms (typically low back and leg pain and lower limb numbness and weakness) that are intermittent, characteristically triggered by ambulation (ameliorated by pausing), and generally positional (aggravated by standing and eased by trunk flexion).
Lumbar spinal stenosis perhaps is understood best as a clinicopathologic disorder: narrowing of the lumbar spinal canal and the nerve root canals (causing central and lateral recess stenosis respectively) typically is brought about by the process of osteoarthritis and leads to compression of the contents of the canals the neural and vascular structures, causing neurologic symptoms (typically low back and leg pain and lower limb numbness and weakness) that are intermittent, characteristically triggered by ambulation (ameliorated by pausing), and generally positional (aggravated by standing and eased by trunk flexion).
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Title: Sense of Taste
Presenter: Dr. Faiza, Assistant Professor of Physiology
Qualifications:
MBBS (Best Graduate, AIMC Lahore)
FCPS Physiology
ICMT, CHPE, DHPE (STMU)
MPH (GC University, Faisalabad)
MBA (Virtual University of Pakistan)
Learning Objectives:
Describe the structure and function of taste buds.
Describe the relationship between the taste threshold and taste index of common substances.
Explain the chemical basis and signal transduction of taste perception for each type of primary taste sensation.
Recognize different abnormalities of taste perception and their causes.
Key Topics:
Significance of Taste Sensation:
Differentiation between pleasant and harmful food
Influence on behavior
Selection of food based on metabolic needs
Receptors of Taste:
Taste buds on the tongue
Influence of sense of smell, texture of food, and pain stimulation (e.g., by pepper)
Primary and Secondary Taste Sensations:
Primary taste sensations: Sweet, Sour, Salty, Bitter, Umami
Chemical basis and signal transduction mechanisms for each taste
Taste Threshold and Index:
Taste threshold values for Sweet (sucrose), Salty (NaCl), Sour (HCl), and Bitter (Quinine)
Taste index relationship: Inversely proportional to taste threshold
Taste Blindness:
Inability to taste certain substances, particularly thiourea compounds
Example: Phenylthiocarbamide
Structure and Function of Taste Buds:
Composition: Epithelial cells, Sustentacular/Supporting cells, Taste cells, Basal cells
Features: Taste pores, Taste hairs/microvilli, and Taste nerve fibers
Location of Taste Buds:
Found in papillae of the tongue (Fungiform, Circumvallate, Foliate)
Also present on the palate, tonsillar pillars, epiglottis, and proximal esophagus
Mechanism of Taste Stimulation:
Interaction of taste substances with receptors on microvilli
Signal transduction pathways for Umami, Sweet, Bitter, Sour, and Salty tastes
Taste Sensitivity and Adaptation:
Decrease in sensitivity with age
Rapid adaptation of taste sensation
Role of Saliva in Taste:
Dissolution of tastants to reach receptors
Washing away the stimulus
Taste Preferences and Aversions:
Mechanisms behind taste preference and aversion
Influence of receptors and neural pathways
Impact of Sensory Nerve Damage:
Degeneration of taste buds if the sensory nerve fiber is cut
Abnormalities of Taste Detection:
Conditions: Ageusia, Hypogeusia, Dysgeusia (parageusia)
Causes: Nerve damage, neurological disorders, infections, poor oral hygiene, adverse drug effects, deficiencies, aging, tobacco use, altered neurotransmitter levels
Neurotransmitters and Taste Threshold:
Effects of serotonin (5-HT) and norepinephrine (NE) on taste sensitivity
Supertasters:
25% of the population with heightened sensitivity to taste, especially bitterness
Increased number of fungiform papillae
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Artificial intelligence (AI) refers to the simulation of human intelligence processes by machines, especially computer systems. It encompasses tasks such as learning, reasoning, problem-solving, perception, and language understanding. AI technologies are revolutionizing various fields, from healthcare to finance, by enabling machines to perform tasks that typically require human intelligence.
NVBDCP.pptx Nation vector borne disease control programSapna Thakur
NVBDCP was launched in 2003-2004 . Vector-Borne Disease: Disease that results from an infection transmitted to humans and other animals by blood-feeding arthropods, such as mosquitoes, ticks, and fleas. Examples of vector-borne diseases include Dengue fever, West Nile Virus, Lyme disease, and malaria.
Ethanol (CH3CH2OH), or beverage alcohol, is a two-carbon alcohol
that is rapidly distributed in the body and brain. Ethanol alters many
neurochemical systems and has rewarding and addictive properties. It
is the oldest recreational drug and likely contributes to more morbidity,
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5th edition of the Diagnostic and Statistical Manual of Mental Disorders
(DSM-5) integrates alcohol abuse and alcohol dependence into a single
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Lung Cancer: Artificial Intelligence, Synergetics, Complex System Analysis, S...Oleg Kshivets
RESULTS: Overall life span (LS) was 2252.1±1742.5 days and cumulative 5-year survival (5YS) reached 73.2%, 10 years – 64.8%, 20 years – 42.5%. 513 LCP lived more than 5 years (LS=3124.6±1525.6 days), 148 LCP – more than 10 years (LS=5054.4±1504.1 days).199 LCP died because of LC (LS=562.7±374.5 days). 5YS of LCP after bi/lobectomies was significantly superior in comparison with LCP after pneumonectomies (78.1% vs.63.7%, P=0.00001 by log-rank test). AT significantly improved 5YS (66.3% vs. 34.8%) (P=0.00000 by log-rank test) only for LCP with N1-2. Cox modeling displayed that 5YS of LCP significantly depended on: phase transition (PT) early-invasive LC in terms of synergetics, PT N0—N12, cell ratio factors (ratio between cancer cells- CC and blood cells subpopulations), G1-3, histology, glucose, AT, blood cell circuit, prothrombin index, heparin tolerance, recalcification time (P=0.000-0.038). Neural networks, genetic algorithm selection and bootstrap simulation revealed relationships between 5YS and PT early-invasive LC (rank=1), PT N0—N12 (rank=2), thrombocytes/CC (3), erythrocytes/CC (4), eosinophils/CC (5), healthy cells/CC (6), lymphocytes/CC (7), segmented neutrophils/CC (8), stick neutrophils/CC (9), monocytes/CC (10); leucocytes/CC (11). Correct prediction of 5YS was 100% by neural networks computing (area under ROC curve=1.0; error=0.0).
CONCLUSIONS: 5YS of LCP after radical procedures significantly depended on: 1) PT early-invasive cancer; 2) PT N0--N12; 3) cell ratio factors; 4) blood cell circuit; 5) biochemical factors; 6) hemostasis system; 7) AT; 8) LC characteristics; 9) LC cell dynamics; 10) surgery type: lobectomy/pneumonectomy; 11) anthropometric data. Optimal diagnosis and treatment strategies for LC are: 1) screening and early detection of LC; 2) availability of experienced thoracic surgeons because of complexity of radical procedures; 3) aggressive en block surgery and adequate lymph node dissection for completeness; 4) precise prediction; 5) adjuvant chemoimmunoradiotherapy for LCP with unfavorable prognosis.
New Directions in Targeted Therapeutic Approaches for Older Adults With Mantl...i3 Health
i3 Health is pleased to make the speaker slides from this activity available for use as a non-accredited self-study or teaching resource.
This slide deck presented by Dr. Kami Maddocks, Professor-Clinical in the Division of Hematology and
Associate Division Director for Ambulatory Operations
The Ohio State University Comprehensive Cancer Center, will provide insight into new directions in targeted therapeutic approaches for older adults with mantle cell lymphoma.
STATEMENT OF NEED
Mantle cell lymphoma (MCL) is a rare, aggressive B-cell non-Hodgkin lymphoma (NHL) accounting for 5% to 7% of all lymphomas. Its prognosis ranges from indolent disease that does not require treatment for years to very aggressive disease, which is associated with poor survival (Silkenstedt et al, 2021). Typically, MCL is diagnosed at advanced stage and in older patients who cannot tolerate intensive therapy (NCCN, 2022). Although recent advances have slightly increased remission rates, recurrence and relapse remain very common, leading to a median overall survival between 3 and 6 years (LLS, 2021). Though there are several effective options, progress is still needed towards establishing an accepted frontline approach for MCL (Castellino et al, 2022). Treatment selection and management of MCL are complicated by the heterogeneity of prognosis, advanced age and comorbidities of patients, and lack of an established standard approach for treatment, making it vital that clinicians be familiar with the latest research and advances in this area. In this activity chaired by Michael Wang, MD, Professor in the Department of Lymphoma & Myeloma at MD Anderson Cancer Center, expert faculty will discuss prognostic factors informing treatment, the promising results of recent trials in new therapeutic approaches, and the implications of treatment resistance in therapeutic selection for MCL.
Target Audience
Hematology/oncology fellows, attending faculty, and other health care professionals involved in the treatment of patients with mantle cell lymphoma (MCL).
Learning Objectives
1.) Identify clinical and biological prognostic factors that can guide treatment decision making for older adults with MCL
2.) Evaluate emerging data on targeted therapeutic approaches for treatment-naive and relapsed/refractory MCL and their applicability to older adults
3.) Assess mechanisms of resistance to targeted therapies for MCL and their implications for treatment selection
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5. Sagittal T1 T2 and STIR images of lumbar region spine shows:
Degenerative changes marked at L4-5 with reduced height of disc
and degenerative intra discal vacume phenomenon. An abnormal linear
hyper intensity of an inter spinous odema noted at the same level.
6. Baastrup’s Disease
Syn: Kissing Spines Disease, intraspinous odema, intraspinous neo-arthrosis.
Baastrup’s Disease is a type of pseudo / neo-arthrosis between adjacent spinous processes.
Common in lumbar region at L4-5.
Extreme forward flexion may result in supraspinous and intraspinous ligaments sprain with
development of a spur. Repeated extension interferes with the healing. An interspinous bursae
may develop due to an associated supraspinous ligament laxity and intraspinous ligament
breakdown. The interspinous ligament degenerates with aging resulting in the formation of a
cavity, the adjacent spinous processes keep coming in contact with each other during
extension and result in formation of a joint which precede pain.
Risk Factors are degenerative disc disease, Athletics, Hyper lordosis, Paraspinal muscle
atrophy, Pars interarticularis defect.
Clinically characterized by localized interspinous or spinous process pain without a referral
pattern, pain present for many years with progressive worsening over time.
Imaging:
Lateral view LS spine radiograph may demonstrate sclerotic changes or flattening of adjacent
spinous processes.
MRI sagittal T2 and STIR images are needed assess interspinous edema.
Bone scan with SPECT can detect increased osteoblastic activity that is associated with
reactive sclerosis.
Treatment: Bed rest in semi upright sitting position, Surgical cavity resection, Surgical fusion.
7. Baastrup syndrome (also referred to as kissing spines) results from adjacent
spinous processes in the lumbar spine rubbing against each other and resulting
in hypertrophy and sclerosis with focal midline pain and tenderness relieved by
flexion and aggravated by extension.
Focal midline pain and tenderness relieved by flexion and aggravated by
extension.
Pathology
This process can result in a degenerative hypertrophy, inflammatory change (as
seen in case 1) and even a pseudoarthrosis with bursa formation. This
interspinous bursa may extend between the ligamentum flavae in the midline
forming an epidural cyst and further contributing to the already existing canal
stenosis
Plain radiograph and CT
often shows close approximation and contact of adjacent spinous processes
(kissing spines)
there is resultant enlargement, flattening and reactive sclerosis of apposing
interspinous surfaces
MRI
May demonstrate interspinous bursal fluid and a posterocentral epidural cyst(s).
MRI can be very helpful in determining whether there is resulting posterior
compression of the thecal sac.