The etiology of endemic rickets was discovered a century ago. Vitamin D is the precursor of
25-hydroxyvitamin D and other metabolites, including 1, 25 (OH) 2D, the ligand for the …

Background The inability to have children affects 10% to 15% of couples worldwide. A male
factor is estimated to account for up to half of the infertility cases with between 25% to 87% of …

Vitamin D deficiency is common and there exists a huge gap between recommended dietary
vitamin D intakes and the poor vitamin D supply in the general population. While vitamin D is …

Objective To determine whether antioxidants improve male fertility, as measured by semen
parameters and DNA fragmentation at 3 months and pregnancy resulting in live birth after up …

Testicular torsion (TT) is the most common urological emergency in children and young
adults that can lead to infertility in many cases. The ischemia-reperfusion (IR) injury due to …

Background Vitamin D deficiency during pregnancy is associated with adverse pregnancy
outcomes, although the association between preconception vitamin D concentrations and …

To date, the key role of vitamin D in male reproductive system has been suggested, since
the expression of vitamin D receptors and metabolizing enzymes was demonstrated in the …

Objective Evaluate the effects of vitamin D3 (VD3) on sperm parameters and endocrine
markers in infertile men with asthenozoospermia. Materials and methods This randomized …

Purpose Seminal oxidative stress (OS) is a recognized factor potentially associated with
male infertility, but the efficacy of antioxidant (AOX) therapy is controversial and there is no …

Obesity plays an important role in human fertility in both genders. The same is true for
vitamin D, for which accumulating evidence from observational human studies suggests a …