Results 191 to 200 of about 277,923 (365)

Vitamin D levels and biomarkers of male fecundity: A study from the Danish National Birth Cohort

open access: yesAndrology, EarlyView.
Abstract Background Vitamin D is metabolised throughout the male reproductive system, suggesting a direct regulatory role of vitamin D in male reproduction. Objectives To investigate the association between plasma vitamin D levels at sperm ejaculation and during spermatogenesis and biomarkers of male fecundity in young men.
Anne Gaml‐Sørensen   +8 more
wiley   +1 more source

Maternal, childhood and adolescent influences on Leydig cell functional capacity and circulating INSL3 concentration in young adults: Importance of childhood infections and body mass index

open access: yesAndrology, EarlyView.
Abstract Background The constitutive Leydig cell hormone insulin‐like peptide 3 (INSL3) is considered a good estimate of the adult Leydig cell functional capacity and appears to remain relatively consistent throughout adult male life, only gradually declining into old age.
Richard Ivell   +3 more
wiley   +1 more source

Low testosterone levels in men at age 31 associates with future risk of prediabetes and type 2 diabetes: A birth cohort study

open access: yesAndrology, EarlyView.
Abstract Objective We aimed to investigate the association of a low serum testosterone concentration with the risk of abnormal glucose metabolism (i.e., prediabetes and type 2 diabetes) in men at a 15‐year follow‐up. Study population and methods In a population birth cohort, men with low testosterone (testosterone < 12.1 nmol/L, n = 136) and normal ...
Tuomisto A   +7 more
wiley   +1 more source

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