Infertility is a disease characterized by the failure to establish a clinical pregnancy after 12
months of regular and unprotected sexual intercourse. It is estimated to affect between 8 and …

BACKGROUND Reported declines in sperm counts remain controversial today and recent
trends are unknown. A definitive meta-analysis is critical given the predictive value of sperm …

We herein summarise the evidence concerning the impact of sperm DNA fragmentation in
various clinical infertility scenarios and the advances on sperm DNA fragmentation tests …

Reports of the increasing incidence of male infertility paired with decreasing semen quality
have triggered studies on the effects of lifestyle and environmental factors on the male …

Infertility and problems of impaired fecundity have been a concern through ages and is also
a significant clinical problem today, which affects 8–12% of couples worldwide. Of all …

It is predicted that Japan and European Union will soon experience appreciable decreases
in their populations due to persistently low total fertility rates (TFR) below replacement level …

Endocrine disrupting chemicals (EDCs) comprise a group of chemical compounds that have
been examined extensively due to the potential harmful effects in the health of human …

Spermatogenesis is an extraordinary complex process. The differentiation of spermatogonia
into spermatozoa requires the participation of several cell types, hormones, paracrine …

Obesity is a growing epidemic and a common problem among reproductive-age men that
can both cause and exacerbate male-factor infertility by means of endocrine abnormalities …

Objective To evaluate the evidence on the efficacy of psychosocial interventions for
improving pregnancy rates and reducing distress for couples in treatment with assisted …