1) Vitiligo is a chronic skin disorder characterized by loss of skin pigmentation and the appearance of white patches on the skin.
2) It affects different parts of the body and can start progressing at any age. While it does not cause physical harm, it can cause psychological issues like low self-esteem.
3) Treatments include topical corticosteroids, immune-modulators like tacrolimus, phototherapy using UV light, and cosmetic cover-ups. Many patients prefer traditional ayurvedic and homeopathic treatments as well.
Skin pigmentation:
Pigmentation means coloring. Skin pigmentation disorders affect the color of your skin. Your skin gets its color from a pigment called melanin. Special cells in the skin make melanin. When these cells become damaged or unhealthy, it affects melanin production. Some pigmentation disorders affect just patches of skin. Others affect your entire body.
For more information, you can book an appointment at
Dr Sachdeva's Dental Aesthetic And Implant Institute,
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Melasma| Melasma and its Treatment| Facial Pigmentation| Post-Pregnancy Pigm...Dr. Rajat Sachdeva
Melasma, Pigmentation on facial skin, most commonly occur on the face of female and in Dark Skin Races.
Treatment for melasma, Sun protection, avoid waxing, Tretinoin, Hydroquinone, Corticosteroid, Azeloic Acid, Glycolic Acid, Chemical Peels, Microdermabrasion, Laser Intensed Pulse Light,
Skin pigmentation:
Pigmentation means coloring. Skin pigmentation disorders affect the color of your skin. Your skin gets its color from a pigment called melanin. Special cells in the skin make melanin. When these cells become damaged or unhealthy, it affects melanin production. Some pigmentation disorders affect just patches of skin. Others affect your entire body.
For more information, you can book an appointment at
Dr Sachdeva's Dental Aesthetic And Implant Institute,
I 101, Ashok Vihar Phase 1, Delhi- 110052
Contact us at
• Phone : +919818894041,01142464041
• Our Websites:
• www.sachdevadentalcare.com
• www.dentalclinicindelhi.com
• www.dentalimplantindia.co.in
• www.dentalcoursesdelhi.com
• www.facialaestheticsdelhi.com
• Google+ link: https://goo.gl/vqAmvr
• Facebook link: https://goo.gl/tui98A
• Youtube link: https://goo.gl/mk7jfm
• Linkedin link: https://goo.gl/PrPgpB
• Slideshare link : http://goo.gl/0HY6ep
• Twitter Page : https://goo.gl/tohkcI
• Instagram page : https://goo.gl/OOGVig
Melasma| Melasma and its Treatment| Facial Pigmentation| Post-Pregnancy Pigm...Dr. Rajat Sachdeva
Melasma, Pigmentation on facial skin, most commonly occur on the face of female and in Dark Skin Races.
Treatment for melasma, Sun protection, avoid waxing, Tretinoin, Hydroquinone, Corticosteroid, Azeloic Acid, Glycolic Acid, Chemical Peels, Microdermabrasion, Laser Intensed Pulse Light,
vitiligo is the chronic skin disease . people get confusion about leprosy and vitiligo so in this slide describe about both the disease through the picture
A skin disease that affects a person strikes the immune system of the affected person, leading to a change in the color of certain parts of the skin, either dark or light.
K5 Lipogel is a lightly perfumed, hydroquinone-free formulation, having an effective whitening action on the brown skin spots due to excessive sun exposure, age, oral contraceptives, use of photosensitizing products, freckles and pigmentation around scars caused by acne or surgical intervention. K5 Lipogel does not undergo microbiological contamination because it is made of 99% of lipidic ingredients that do not offer a proper culture media for microbial growth. Epicutaneous patch tests (15 minutes and 24
hours) have showed good tolerability of K5. K5 Lipogel is currently notified as a cosmetic product in Italy and it can be immediately sold all over Europe.
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Couples presenting to the infertility clinic- Do they really have infertility...Sujoy Dasgupta
Dr Sujoy Dasgupta presented the study on "Couples presenting to the infertility clinic- Do they really have infertility? – The unexplored stories of non-consummation" in the 13th Congress of the Asia Pacific Initiative on Reproduction (ASPIRE 2024) at Manila on 24 May, 2024.
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.
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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,
mortality, and public health costs than all illicit drugs combined. The
5th edition of the Diagnostic and Statistical Manual of Mental Disorders
(DSM-5) integrates alcohol abuse and alcohol dependence into a single
disorder called alcohol use disorder (AUD), with mild, moderate,
and severe subclassifications (American Psychiatric Association, 2013).
In the DSM-5, all types of substance abuse and dependence have been
combined into a single substance use disorder (SUD) on a continuum
from mild to severe. A diagnosis of AUD requires that at least two of
the 11 DSM-5 behaviors be present within a 12-month period (mild
AUD: 2–3 criteria; moderate AUD: 4–5 criteria; severe AUD: 6–11 criteria).
The four main behavioral effects of AUD are impaired control over
drinking, negative social consequences, risky use, and altered physiological
effects (tolerance, withdrawal). This chapter presents an overview
of the prevalence and harmful consequences of AUD in the U.S.,
the systemic nature of the disease, neurocircuitry and stages of AUD,
comorbidities, fetal alcohol spectrum disorders, genetic risk factors, and
pharmacotherapies for AUD.
These lecture slides, by Dr Sidra Arshad, offer a quick overview of physiological basis of a normal electrocardiogram.
Learning objectives:
1. Define an electrocardiogram (ECG) and electrocardiography
2. Describe how dipoles generated by the heart produce the waveforms of the ECG
3. Describe the components of a normal electrocardiogram of a typical bipolar leads (limb II)
4. Differentiate between intervals and segments
5. Enlist some common indications for obtaining an ECG
Study Resources:
1. Chapter 11, Guyton and Hall Textbook of Medical Physiology, 14th edition
2. Chapter 9, Human Physiology - From Cells to Systems, Lauralee Sherwood, 9th edition
3. Chapter 29, Ganong’s Review of Medical Physiology, 26th edition
4. Electrocardiogram, StatPearls - https://www.ncbi.nlm.nih.gov/books/NBK549803/
5. ECG in Medical Practice by ABM Abdullah, 4th edition
6. ECG Basics, http://www.nataliescasebook.com/tag/e-c-g-basics
Explore natural remedies for syphilis treatment in Singapore. Discover alternative therapies, herbal remedies, and lifestyle changes that may complement conventional treatments. Learn about holistic approaches to managing syphilis symptoms and supporting overall health.
New Drug Discovery and Development .....NEHA GUPTA
The "New Drug Discovery and Development" process involves the identification, design, testing, and manufacturing of novel pharmaceutical compounds with the aim of introducing new and improved treatments for various medical conditions. This comprehensive endeavor encompasses various stages, including target identification, preclinical studies, clinical trials, regulatory approval, and post-market surveillance. It involves multidisciplinary collaboration among scientists, researchers, clinicians, regulatory experts, and pharmaceutical companies to bring innovative therapies to market and address unmet medical needs.
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
- Video recording of this lecture in English language: https://youtu.be/lK81BzxMqdo
- Video recording of this lecture in Arabic language: https://youtu.be/Ve4P0COk9OI
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Title: Sense of Smell
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 primary categories of smells and the concept of odor blindness.
Explain the structure and location of the olfactory membrane and mucosa, including the types and roles of cells involved in olfaction.
Describe the pathway and mechanisms of olfactory signal transmission from the olfactory receptors to the brain.
Illustrate the biochemical cascade triggered by odorant binding to olfactory receptors, including the role of G-proteins and second messengers in generating an action potential.
Identify different types of olfactory disorders such as anosmia, hyposmia, hyperosmia, and dysosmia, including their potential causes.
Key Topics:
Olfactory Genes:
3% of the human genome accounts for olfactory genes.
400 genes for odorant receptors.
Olfactory Membrane:
Located in the superior part of the nasal cavity.
Medially: Folds downward along the superior septum.
Laterally: Folds over the superior turbinate and upper surface of the middle turbinate.
Total surface area: 5-10 square centimeters.
Olfactory Mucosa:
Olfactory Cells: Bipolar nerve cells derived from the CNS (100 million), with 4-25 olfactory cilia per cell.
Sustentacular Cells: Produce mucus and maintain ionic and molecular environment.
Basal Cells: Replace worn-out olfactory cells with an average lifespan of 1-2 months.
Bowman’s Gland: Secretes mucus.
Stimulation of Olfactory Cells:
Odorant dissolves in mucus and attaches to receptors on olfactory cilia.
Involves a cascade effect through G-proteins and second messengers, leading to depolarization and action potential generation in the olfactory nerve.
Quality of a Good Odorant:
Small (3-20 Carbon atoms), volatile, water-soluble, and lipid-soluble.
Facilitated by odorant-binding proteins in mucus.
Membrane Potential and Action Potential:
Resting membrane potential: -55mV.
Action potential frequency in the olfactory nerve increases with odorant strength.
Adaptation Towards the Sense of Smell:
Rapid adaptation within the first second, with further slow adaptation.
Psychological adaptation greater than receptor adaptation, involving feedback inhibition from the central nervous system.
Primary Sensations of Smell:
Camphoraceous, Musky, Floral, Pepperminty, Ethereal, Pungent, Putrid.
Odor Detection Threshold:
Examples: Hydrogen sulfide (0.0005 ppm), Methyl-mercaptan (0.002 ppm).
Some toxic substances are odorless at lethal concentrations.
Characteristics of Smell:
Odor blindness for single substances due to lack of appropriate receptor protein.
Behavioral and emotional influences of smell.
Transmission of Olfactory Signals:
From olfactory cells to glomeruli in the olfactory bulb, involving lateral inhibition.
Primitive, less old, and new olfactory systems with different path
1. GETTING THE PATIENT PERSPECTIVE ON
VITILIGO : A CHRONIC SKIN
DISORDER
By:- Amzad Ansari
Roll No. :- BP5012383
HIMACHAL INSTITUTE OF PHARMACY
CO-ORDINATOR:-
Dr. Alok Semwal
Associate Professor
Pharmaceutical Chemistry
2. WHAT IS VITILIGO?
• An acquired skin pigmentation disorder
• Characterized by white patches
• Often surrounded by a heavily pigmented border
3. EFFECTS OF VITILIGO
• Gradual loss of melanin resulting in
depigmentation
• White patches on different parts of the body
which may start progression
• Psychological disorders
• Does not cause any organic harm
5. COURSE & SYMPTOMS OF VITILIGO
• White patches on the skin which may vary in
size or shape (No fix pattern)
• These patches may appear on different parts
of the body
• The hair present on the affected areas
sometimes turn white
• These patches may start progression and
sometimes re-pigment on its own
11. GENERALIZED VITILIGO
Generalized vitiligo has three types:-
Acrofacial Vitiligo:
– Occurs on the parts away from the center of the body
Vulgaris Vitiligo:
– Scattered patches
– Widely distributed
Universal Vitiligo:
– Nearly complete depigmentation
12. LOCALIZED VITILIGO
• Localized vitiligo has three types
• Focal Vitiligo:
– Limited to one or few areas
– Does not progress
– Not clearly in a segmental distribution
• Segmental Vitiligo:
– Unilateral and asymmetric in distribution
– Only one side of the body is affected
– Common in children
• Mucosal Vitiligo:
– Mucous membranes are affected
13. TREATMENT
1.Photochemotherapy
Psoralens + UVA exposure – PUVA
• Mainstay of vitiligo therapy
• Psoralens – Tricyclic furocoumarins
8- Methoxypsoralen
Topical/Systemic
• UVA- in special chambers containing UVA emitting tubes
PUVA sol – psoralen + sunlight
15. 2. PHOTOTHERAPY: NARROW BAND UVB (311NM)
INDICATIONS :
Indicated in children and pregnant women
Patients in which psoralens C/I
REGIMEN – Gradually increasing doses of
UVB, given from specialized chambers.
17. SURGICAL TREATMENT
Indications-
Sites poorly responsive to conventional therapy
Patient with stable disease
MELANOCYTE
TRANSFER
BLISTER
GRAFTING
PUNCH
GRAFTING
SPLIT
THICKNESS
SKIN
GRAFTING
18. TREATMENT GUIDELINES
Topical steroids
Topical PUVA/ PUVA sol
LOCALISED DISEASE
New lesions
Old lesions
EXTENSIVE DISEASE
New lesions
Rapid increase
Old lesions
Intolerence to PUVA/NBUVB
GENERALISED LESIONS
Oral steroids + PUVA/PUVA sol
NBUVB
Oral steroids + PUVA/PUVA sol
/NBUVB
Oral PUVA/PUVA sol/NBUVB
Oral steroids
Monobenzyl ether of hydroquinone
19. Aim and Objectives
I. This project aims at coming out with the awareness level of people
about vitiligo and its treatment. The whole work revolves around
the following objectives:
To reveal the truth behind all the misconceptions regarding
vitiligo.
To come up with the data of vitiligo patients in the surveyed
area and then analyzing it under different criterions.
Encouraging the vitiligo patients to stand up against all the
odds being faced by them from self-inferiorities to social
taboos.
20. To aware people about the all possible treatments available for
the disease.
To discover whether the patients use some indigenous
treatments or not.
Try to come up with some new drugs that could help with the
disease.
Continued…
21. 1. Priyanka et al., 2010; Navneet et al., 2012
It involves different topical formulations of steroids and immune-modulators.
Steroids applied topically are helpful to treat the patches of vitiligo. Potent
corticosteroids like betamethasone, valerate, triaminolone and very potent
corticosteroids like alobetasol, fluticasone propionate are helpful to obtain
marked or almost complete repigmentation of the skin. Immune-modulators
like tacrolimus and pimecrolimus are helpful in the treatment of vitiligo when
applied topically. These can also be used to treat the small and difficult areas
like eyelids
Review Of Literature
22. 2. Navneet et al., 2012
It is a drastic form of treatment for vitiligo. It involves fading the rest of the
skin of the body so the whole body appears in white colour. For that
permanent melanocytotoxic agents like monobenzyl ester of hydroquinone
cream and 4-methoxyphenol can be used.
3. Priyanka et al., 2010; Navneet et al., 2012
If no treatment works for the treatment than alternative cover-ups can be
used. Leukodermic skin easily gets damaged to the sunburn and the effect
lasts for very long time. So to avoid the excess exposure to the sunlight and
prevent the sunburn sunscreens can be used. To hide the untreated white
patches onto the skin cosmetics cover-ups are very useful
23. SURVEY DESCRIPTION
Out of the total people surveyed :
75% suffer from acrofacial vitiligo
Only few of them inherited the disease from their parents
Mostly people prefer ayurvedic & homeopathic treatment
Most people believe that the disease is more prominent during
summer
Most of them get sunburnt easily
24. Many of them were prescribed topical ointment containing
Tacrolimus Salt
Some of them also go for traditional methods of controlling the
disease
Continued…
26. CONCLUSION
Vitiligo is chronic skin disorder that produces white patches on
skin.
It may start at any age and affect any part of the body.
The main causes of this disease are inheritance and mental or
physical trauma.
It is not a harmful disease.
It causes psychological problems like tension,
embarrassment or loss of self-confidence.