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.
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http://dx.doi.org/10.1530/eje.0.1470635 | DOI Listing |
Mol Genet Genomic Med
January 2025
College of Medicine, Alfaisal University, Riyadh, Saudi Arabia.
Background: The use of exome sequencing (ES) has helped in detecting many variants and genes that cause primary adrenal insufficiency (PAI). The diagnosis of PAI is difficult and can be life-threatening if not treated urgently. Consanguinity can impact the detection of recessively inherited genes.
View Article and Find Full Text PDFVet Sci
January 2025
Department of Clinics, Faculty of Veterinary Medicine, "Ion Ionescu de la Brad" Iasi University of Life Sciences, 700490 Iasi, Romania.
A 3-year-old spayed male mixed-breed Labrador presented to the Emergency and Critical Care Unit with lethargy, loss of appetite, vomiting, a recent history of presyncopal episodes, and severe exercise intolerance. On admission, the patient had bradycardia, low blood pressure, and mild abdominal pain. Serum biochemistry information revealed severe hyperkalemia, hyponatremia, hypoglycemia, and mildly increased liver and kidney parameters.
View Article and Find Full Text PDFCureus
December 2024
Division of Internal Medicine, Unidade Local de Saúde de Braga, Braga, PRT.
Autoimmune polyglandular syndrome type 3 (APS-3) is an uncommon condition marked by autoimmune thyroid disease (ATD) linked with other autoimmune issues, excluding Addison's disease. We report a case of a 41-year-old man who was hospitalized due to exhaustion and macrocytic anemia, later diagnosed with APS-3, which included Hashimoto's thyroiditis, pernicious anemia resulting from autoimmune gastritis, and pre-existing vitiligo. Diagnostic results indicated positive intrinsic factor antibodies, a gastric biopsy compatible with gastritis, elevated thyroid peroxidase antibodies, and significant findings from a thyroid ultrasound.
View Article and Find Full Text PDFRev Med Liege
January 2025
Service d'Endocrinologie, CHU Liège, Belgique.
In 1849, Thomas Addison discovered alterations in the adrenal glands at autopsy of three patients who had died with idiopathic anemia. Struck by Addison's work, Charles-Edouard Brown-Séquard demonstrated in 1851 that bilateral adrenalectomy in dogs was fatal. It was not until 1950 that the discovery of the hormones of the adrenal cortex, their structure and their biological effects allowed Kendall, Reichstein and Hench to win the Nobel Prize in Physiology or Medicine.
View Article and Find Full Text PDFFront Vet Sci
December 2024
Faculty of Veterinary Medicine, Veterinary Teaching Hospital, University of Lisbon, Lisbon, Portugal.
Background: A resting cortisol concentration (RC) higher than 2.0 μg/dL (55 nmol/L) is commonly used to rule out hypoadrenocorticism (HA). However, there is a significant overlap of RC between dogs with HA and those with other diseases.
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