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PubMedDate not supplied

Epidemiology of childhood vitiligo: a study of 625 patients from north India.

To study the clinical and epidemiologic profile of childhood vitiligo, we retrospectively analyzed the data of children with vitiligo attending the pigmentary clinic of our center. Of the 625 children seen over 10 years, 357 (57.1%) were girls and 268 (42.9%) were boys. As compared to adult patients with vitiligo, this sex difference was found to be statistically significant (p < 0.001). The mean age of onset of the disease was 6.2 years. Vitiligo vulgaris (generalized vitiligo) was the most common type, followed by focal, segmental, acrofacial, mucosal, and universal, in that order. The most frequent site of onset was the head and neck, followed by the lower limbs, trunk, upper limbs, and mucosae. Leukotrichia was present in 77 patients (12.3%), while Koebner phenomenon was observed in 71 patients (11.3%). Halo nevi were observed in 29 patients (4.4%). Seventy-six patients (12.2%) had a family history of vitiligo. Eight patients (1.3%) had an associated autoimmune disease. These associated disorders were alopecia areata in two patients, and diabetes mellitus, thyroid disease, Addison disease, polyglandular syndrome, and pemphigus vulgaris in one patient each.

Adult↗
PubMedDate not supplied

Celiac disease symptoms in a female collegiate tennis player: a case report.

OBJECTIVE: To present the case of a collegiate tennis player with celiac disease symptoms. BACKGROUND: Celiac disease is a common intestinal disorder that is often confused with other conditions. It causes severe intestinal damage manifested by several uncomfortable signs and symptoms. Failure by the sports medicine staff to recognize symptoms consistent with celiac disease and treat them appropriately can have deleterious consequences for the athlete. DIFFERENTIAL DIAGNOSIS: Irritable bowel syndrome, Crohn disease, Addison disease, lupus erythematosus, juvenile rheumatoid arthritis, lactose intolerance, herpes zoster, psychogenic disorder (depression), fibromyalgia, complex regional pain syndrome, hyperthyroidism, anemia, type I diabetes. TREATMENT: The athlete underwent a series of blood and allergen tests to confirm or refute a diagnosis of celiac disease. When celiac disease was suspected, dietary modifications were made to eliminate all wheat-based and gluten-based products from the athlete's diet. UNIQUENESS: The athlete was able to fully compete in a competitive National Collegiate Athletic Association Division I tennis program while experiencing the debilitating effects associated with celiac disease. The immediacy of symptom onset was notable because the athlete had no history of similar complaints. CONCLUSIONS: Celiac disease is a potentially life-threatening condition that affects more people than reported. A properly educated sports medicine staff can help to identify symptoms consistent with celiac disease early, so damage to the intestine is minimized. Prompt recognition and appropriate management allow the athlete to adjust the diet accordingly, compete at a high-caliber level, and enjoy a healthier quality of life.

Journal Article↗
PubMed1997

21-hydroxylase autoantibodies in adult patients with endocrine autoimmune diseases are highly specific for Addison's disease. Belgian Diabetes Registry.

The diagnostic specificity of recombinant 21-hydroxylase autoantibodies (21OH-Ab) for Addison's disease was tested in adult patients with either Graves' disease (GD), insulin-dependent diabetes mellitus (IDDM), or polyendocrinopathy, as well as in healthy controls. Using a radiobinding assay with in vitro translated recombinant human 21-hydroxylase, we found 21OH-Ab in 24/28 (86%) idiopathic Addison patients, and using an immunofluorescence assay we found adrenal cortex autoantibodies (ACA) in 12/28 (43%) patients (P = 0.002). All the 12 ACA-positive sera were also positive for 21OH-Ab and ACA were found in 11/15 (73%) patients with less than 15 years and in 1/13 (8%) patients with 15-38 years of disease duration (P = 0.002). 21OH-Ab were present in 3/92 (3%) patients with GD, in 1/180 (0.6%) with IDDM and in 0/106 healthy subjects. The 21OH-Ab-positive GD and IDDM patients were also positive for ACA. None of 17 patients with polyendocrinopathy, but without Addison's disease, had 21OH-Ab. None of the 180 Belgian IDDM patients had Addison' s disease or developed an adrenal insufficiency at follow up. In two out of three Graves patients, the presence of 21OH-Ab was associated with clinical and biochemical signs of adrenal insufficiency. Of the 89 21OH-Ab-negative patients with GD none had Addison's disease at the time of blood sampling, and 79 were followed up for 5.6-7.5 years and none developed clinical signs of adrenal insufficiency. We conclude that the presence of 21OH-Ab in patients with endocrine autoimmune diseases is highly specific for Addison's disease.

Addison Disease↗
PubMed2002

Vitamin D receptor genotype is associated with Addison's disease.

OBJECTIVE: Autoimmune Addison's disease is a rare disorder which results from the T cell-mediated destruction of adrenocortical cells. A number of genetic susceptibility markers are shared by Addison's disease, type 1 diabetes, Graves' disease and Hashimoto's thyroiditis. The vitamin D endocrine system has been shown to influence immune regulation. Variants of the nuclear vitamin D receptor (VDR) gene were found to be associated with type 1 diabetes and thyroid autoimmunity amongst others. We therefore investigated the role of VDR polymorphisms in Addison's disease. DESIGN AND METHODS: Patients (n=95) and controls (n=220) were genotyped for VDR polymorphisms FokI, BsmI, ApaI and TaqI. RESULTS: The 'ff' (13.7% vs 5.5%; P=0.0243; odds ratio = 2.75) and the 'tt' (28.4% vs 14.1%; P=0.0043; odds ratio = 2.42) genotypes were significantly more frequent in patients than in controls. Furthermore, the BsmI genotype distribution differed significantly between patients and controls (chi(2)=6.5016 (2 d.f.) P=0.0387). CONCLUSIONS: These data suggest that the VDR genotype is associated with Addison's disease. The mechanisms by which distinct receptor variants might confer disease susceptibility remain to be elucidated.

Addison Disease↗
PubMed1988

The effect of sodium valproate in Cushing's disease, Nelson's syndrome and Addison's disease.

UNLABELLED: We investigated the effect of sodium valproate on plasma ACTH and serum cortisol concentrations in different pathological states of ACTH hypersecretion. Five patients with pituitary dependent Cushing's syndrome, two patients with Nelson's syndrome and five patients with Addison's disease were studied. Neither a single dose nor long term administration of sodium valproate resulted in a significant decrease of plasma ACTH levels in patients with Cushing's disease and Nelson's syndrome. Furthermore, the response of ACTH and cortisol to stimulation with lysine-vasopressin was unaffected during acute and chronic treatment. Patients with Addison's disease showed a slight attenuation of the ACTH response to lysine-vasopressin as compared to placebo but the difference was not statistically significant. IN CONCLUSION: sodium valproate does not appear to be effective in controlling ACTH hypersecretion in pituitary dependent Cushing's syndrome.

Addison Disease↗
PubMed1976

Renal hemodynamics and water excretion in Addison's disease.

Patients with Addison's disease have impaired ability to excrete free water. The mechanism of this defect is still not clear. These experiments were designed to help clarify the role of altered renal hemodynamics in the genesis of the defect. Six patients with Addison's disease were studied. Enough salt and water was administered to maintain adequate hydration throughout the study but no hormonal replacement was instituted. After a water load, the urine output (V), free water clearance (CH2O), sodium excretion (UNaV), total solute clearance (COsm), inulin clearance (CIn), and para-aminohippurate clearance (CPAH) were measured by standard clearance techniques. In the control studies V and CH2O were abnormally low. The studies were repeated after administration of DOCA, 2.5 mg daily, for a week. This medication decreased UNaV and improved the plasma electrolyte profile but did not cause a significant change in V, CH2O, GFR, or RPF. The same studies were repeated once more after administration of prednisone, 5 mg daily in divided doses, for a week. This drug induced a marked water diuresis while GFR and RPF remained unchanged. It is concluded that hypovolemia and altered renal hemodynamics are not the only mechanisms of the impaired water excretion in Addison's disease. A severe defect remains after normalization of hypovolemia and this is corrected by prednisone but not by DOCA, through mechanisms which do not involve changes in GFR or RPF.

Addison Disease↗
PubMed2006

[Addison's disease and infection].

Addison's disease, or primary adrenocortical insufficiency, is a diagnosis that may often be overlooked. A case is presented of a 28-year-old male who, within a six-month period, was admitted on three occasions with symptoms mimicking sepsis, for which no microbiological etiology could be established. Each time he recovered, however, on antibiotic treatment. Not until the third admission was Addison's disease suspected.

Addison Disease↗
PubMed1978

Tuberculous Addison's disease and thyrotoxicosis.

Addison's disease developed in two patients after they had tuberculosis. Thyrotoxicosis subsequently developed. In both cases, the adrenal glands were calcified, suggesting that Addison's disease was tuberculous in origin. Results of tests for antihyroglobulin, antimicrosomal, and adrenal cortex antibodies were normal. These findings do not suggest an autoimmune basis for the occurrence of the two endocrinopathies. The rarity of the simultaneous occurrence of both disorders suggests it to be fortuitous.

Addison Disease↗
PubMed1971

Familial Addison's disease.

Familial prepubertal Addison's disease is presented in two sets of brothers. Predominance of males with normal sex differentiation, lack of defects in steroid biosynthesis and absence of antibodies and associated endocrinopathies, separate this entity from other forms due to enzyme deficiencies or disordered cellular immune response. Distributed as a Mendelian recessive characteristic, familial Addison's disease of childhood may represent a milder form of the same genetic disorder responsible for congenital adrenal hypoplasia of infancy.

Addison Disease↗
PubMed1994

Autoantibodies to cytochrome P450 enzymes P450scc, P450c17, and P450c21 in autoimmune polyglandular disease types I and II and in isolated Addison's disease.

Patients with idiopathic Addison's disease have autoantibodies reacting with adrenal cortex. If Addison's disease is associated with other endocrine immune diseases like autoimmune polyglandular diseases (APD) type I and type II, antibodies may recognize all steroid-producing cells. We showed previously that one antigen recognized by APD-I sera is the cytochrome P450c17 hydroxylase. We have now looked for antibodies to P450c17 and to two other key enzymes in the steroid biosynthetic pathway, the P450scc and P450c21, in a series of patients with isolated Addison's disease (8 patients) or with APD-I or APD-II (50 and 9 patients, respectively). The result of antienzyme antibodies were further correlated with the immunofluorescence pattern against adrenal gland, testis, ovary, and placenta, and with the clinical findings presented. In APD-I patients with Addison's disease and in APD-II patients, antibodies to at least one of the P450 enzymes were frequently found (positive findings in 81% and 78%, respectively). Such antibodies were less frequent in APD-I patients without Addison's disease (21%) and in the isolated Addison cases (25%). In APD-I, antibodies recognized as frequently P450c17 and P450scc, specific for all steroid-producing cells as the adrenal specific enzyme P450c21. In contrast, patients with APD-II or with the isolated Addison's disease reacted almost exclusively with P450c21. Immunofluorescence studies showed good correlation with the known fact that the zona glomerulosa of the adrenal cortex is devoid of the P450c17, that the Leydig cells of the testis and the theca interna cells of the ovary express P450c17 and P450scc, and that the placental trophoblasts express only P450scc. The presence of antibodies to P450scc or to at least one of the tested P450 enzymes correlated significantly to gonadal failure in the females but not in the males.

Addison Disease↗
PubMed2006

Understanding the genetics of autoimmune disease: two loci that regulate late onset Addison's disease in Portuguese Water Dogs.

Addison's disease, an immune-mediated disorder caused by destruction of the adrenal glands, is a rare disorder of Western European populations. Studies indicate that the disorder is polygenic in nature, involving specific alleles of the CTLA-4, DRB1*04 and DQ, Cyp27B1, VDR and MIC-A and -B loci. A similar immune form of Addison's disease occurs in several breeds of domestic dog, with frequencies ranging from 1.5 to 9.0%. The high frequency of the disease in domestic dog breeds likely reflects the small number of founders associated with many breeds, subsequent inbreeding, and the frequent use of popular sires. The Portuguese Water Dog (PWD) is a significantly affected breed. An analysis of 11,384 PWDs surveyed between 1985 and 1996 suggests a breed-specific disease incidence of 1.5%. As with humans, the disease is typically of late onset. This study involves a genetic comparison of Addison's disease in the PWD to the analogous disease in humans. The study is facilitated by the existence of complete pedigrees and a relatively high degree of inbreeding among PWDs. The breed originated from 31 founders, with 10 animals responsible for 90% of the current gene pool. We describe, specifically, the identification of two disease-associated loci, on Canis familiaris (CFA) chromosomes CFA12 and 37, which are syntenic with the human DRB1 histocompatibility locus alleles HLA-DRB1*04 and DRB1*0301, and to a locus for immunosuppression syntenic with CTLA-4. Strong similarities exist therefore in the complex genetic background of Addison's disease in humans and in the PWD. With the completion of the canine and human genome sequence, the purebred dog is set to become an important comparative model for Addison's as well as other human immune disorders.

Addison Disease↗
PubMed2000

Association analysis of the cytotoxic T lymphocyte antigen-4 (CTLA-4) and autoimmune regulator-1 (AIRE-1) genes in sporadic autoimmune Addison's disease.

Although autoimmune Addison's disease (AAD) may occur as a component of the monogenic autoimmune polyendocrinopathy type 1 syndrome (APS1), it is most commonly found as an isolated disorder or associated with the autoimmune polyendocrinopathy type 2 syndrome (APS2). It is likely that sporadic (non-APS1) AAD is inherited as a complex trait; however, apart from the major histocompatibility complex, the susceptibility genes remain unknown. We have examined polymorphisms at two non-major histocompatibility complex candidate susceptibility loci in sporadic (non-APS1) AAD: the cytotoxic T lymphocyte antigen-4 (CTLA-4) gene and the autoimmune regulator (AIRE-1) gene. DNA samples from AAD subjects (n = 90) and local controls (n = 144 for CTLA-4; n = 576 for AIRE-1) were analyzed for the CTLA-4A/G polymorphism in exon 1 of the CTLA-4 gene and for the common mutant AIRE-1 allele (964de113) in United Kingdom subjects with APS1, by using the restriction enzymes Bst7II and BsrBI, respectively. There was an association of the G allele at CTLA-4A/G in AAD subjects (P = 0.008 vs. controls), which was stronger in subjects with AAD as a component of APS2 than in subjects with isolated AAD. In contrast, the mutant AIRE-1 964del13 allele was carried in one each of the 576 (0.2%) control subjects and the 90 (1.1%) AAD subjects as a heterozygote (P = 0.254, not significant), suggesting that this common AIRE-1 gene abnormality does not have a major role in sporadic (non-APS1) AAD.

Abatacept↗