U=U: "Undetectable Equals Untransmittable" Perceptions Among Men Who Have Sex With Men Active Duty Service Members: A Cross-Sectional Study.

Undetectable = Untransmittable (U=U) is a key message emphasizing that antiretroviral therapy suppresses HIV and prevents its sexual transmission. However, dissemination of U=U varies among health care providers, potentially leading to knowledge gaps among patients. Little research exists on the understanding of U=U among active duty men who have sex with men (MSM) in the U.

Do Ask, Do Tell: Understanding Disclosure of Sexuality and Implications Among MSM Active Duty Service Members.

Introduction: Men who have sex with men (MSM) account for over half of new diagnoses of human immunodeficiency virus (HIV) every year in the United States, with over one-third of this population being unaware of their HIV status. The U.S.

Effects of Vitamin D Supplementation on Insulin Sensitivity and Secretion in Prediabetes.

Context: Vitamin D regulates glucose homeostasis pathways, but effects of vitamin D supplementation on β-cell function remain unclear.

Objective: To investigate the effects of vitamin D3 supplementation on insulin sensitivity and β-cell function.

Methods: This is a prespecified secondary analysis of the Vitamin D and Type 2 Diabetes study.

Intratrial Exposure to Vitamin D and New-Onset Diabetes Among Adults With Prediabetes: A Secondary Analysis From the Vitamin D and Type 2 Diabetes (D2d) Study.

Objective: Postrandomization biases may influence the estimate of efficacy of supplemental vitamin D in diabetes prevention trials. In the Vitamin D and Type 2 Diabetes (D2d) study, repeated measures of serum 25-hydroxyvitamin D [25(OH)D] level provided an opportunity to test whether intratrial vitamin D exposure affected diabetes risk and whether the effect was modified by trial assignment (vitamin D vs. placebo).