نتایج جستجو برای: experimental autoimmune vitiligo
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Background Polyglandular Autoimmune Syndrome (PAS) was first described by Neufeld et al in 1980 as a syndrome involving multiple organs with endocrine disorders with hypofunction of the involved organ. The peak age-specific incidence occurs between 20 to 60 yrs. of age. Type 3 Polyglandular Autoimmune Syndrome is defined as autoimmune thyroiditis in association with Type 1 Diabetes; Type 3A whe...
Vitiligo is a depigmenting disorder resulting from the loss of melanocytes in the skin and affects 1-4% of the world population. Incidence of vitiligo is found to be 0.5-2.5% in India with a high prevalence of 8.8% in Gujarat and Rajasthan states. The cellular and molecular mechanisms that lead to melanocyte destruction in this disorder are not yet been fully elucidated. Genetic factors, neural...
Vitiligo is a common pigment disorder characterized by acquired loss of function or absence of melanocytes, leading to distinct areas of depigmentation. Physical exam reveals sharply demarcated, depigmented macules or patches on otherwise normal skin. Vitiligo can present at any age, in any skin color. There is no specific serologic marker for diagnosis, but patients often have other autoimmune...
multiple sclerosis (ms) is an autoimmune disease in which auto-reactive t cells react with self-antigens expressed in the central nervous system (cns). the main cause of ms is unknown. nonetheless, the most probable theory is based on molecular mimicry, which suggests that some infections can activate t cells against brain auto-antigens like myelin proteolipid protein (plp) and initiate the dis...
OBJECTIVES Vitiligo is a relatively common autoimmune condition causing loss of skin pigment. Around 1 in 100 people in the UK develop vitiligo. It can have a significant impact on quality of life for many of those affected. How people access information and help for vitiligo may influence how they manage such impact. We aimed to explore people's views and experiences of seeking health informat...
Vitiligo is a multifactorial polygenic disorder with a complex pathogenesis, linked with both genetic and non-genetic factors. The precise modus operandi for vitiligo pathogenesis has remained elusive. Theories regarding loss of melanocytes are based on autoimmune, cytotoxic, oxidant-antioxidant and neural mechanisms. Reactive oxygen species (ROS) in excess have been documented in active vitili...
Patients with autoimmune polyendocrine syndrome type I (APS I) have autoantibodies against the enzyme aromatic L-amino acid decarboxylase (AADC) of pancreatic beta-cells. The aim of the present study was to investigate the presence of anti-AADC antibodies in a large cohort of patients with APS I, and in patients with isolated insulin-dependent diabetes mellitus (IDDM). We found autoantibodies a...
Immunohistochemical Findings in Active Vitiligo Including Depigmenting Lesions and Non-Lesional Skin
Background: The evidence that vitiligo is an autoimmune disease is supported by its association with autoimmune conditions, the presence of activated cytotoxic T lymphocytes in the lesions and melanocyte-specific circulating auto-antibodies. Some studies have indicated the normal-appearing skin being immune-targeted for latent melanocyte disappearance. Method: We aimed to characterize immunohis...
Sir, Neurofibromatosis 1 (NF1) is an autosomal dominant disease which predominantly involves the skin and the nervous system. The cardinal features of NF1 include neurofibromas, café-au-lait spots, axillary and inguinal freckling, eye abnormalities comprising Lisch nodules, optic glioma and osseous lesions and learning disabilities (1). Noonan syndrome (NS), is a genetic disorder whose prevelan...
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