Abstract
Context: The pathogenesis of autoimmune Addison's disease (AAD) is thought to be due to interplay of genetic, immune, and environmental factors. A month-of-birth effect, with increased risk for those born in autumn/winter months, has been described in autoimmune conditions such as type 1 diabetes and autoimmune thyroid disease. Objective: Month-of-birth effect was investigated in 2 independent cohorts of AAD subjects. Design, Setting, and Patients: The monthly distribution of birth in AAD patients was compared with that of the general population using the cosinor test. A total of 415 AAD subjects from the United Kingdom cohort were compared with 8 180 180 United Kingdom births, and 231 AAD subjects from the Polish cohort were compared with 2 421 384 Polish births. Main Outcome Measures: Association between month of birth and the susceptibility to AAD. Results: In the entire cohort of AAD subjects, month-of-birth distribution analysis showed significant periodicity with peak of births in December and troug...
Highlights
Pazderska A, Fichna M, Mitchell AL, Napier CM, Gan E, Ruchala M, Santibanez-Koref M, Pearce SH
For the first time, we demonstrate that month of birth exerts an effect on the risk of developing autoimmune Addison’s disease (AAD), with excess risk in individuals born in winter months and a protective effect when born in the summer
A number of susceptibility alleles for the disease have been identified to date, data on the environmental factors implicated in the pathophysiology are completely lacking [3,4,5,6,7,8]
Summary
Pazderska A, Fichna M, Mitchell AL, Napier CM, Gan E, Ruchala M, Santibanez-Koref M, Pearce SH. Impact of Month of Birth on the Risk of Development of Autoimmune Addison's Disease. Context: The pathogenesis of autoimmune Addison’s disease (AAD) is thought to be due to interplay of genetic, immune, and environmental factors. A month-of-birth effect, with increased risk for those born in autumn/winter months, has been described in autoimmune conditions such as type 1 diabetes and autoimmune thyroid disease
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