A meta-analysis of data collected between 1973 and 2011 finds that among men from Western countries, sperm concentration has declined by more than 50%, with no evidence of a “leveling off” in recent years. These findings strongly suggest a significant decline in male reproductive health that has serious implications beyond fertility and reproduction, given recent evidence linking poor semen quality with higher risk of hospitalization and death. Research on causes of this ongoing decline and their prevention is urgently needed, researchers say.
Could sleeping next to a noisy street put our future at risk?
Scientists from the University of Birmingham have discovered the link between increased male hormones and metabolic complications such as diabetes and fatty liver disease in patients with polycystic ovary syndrome (PCOS).
Sex steroid levels change markedly during menopause, and oestrogen deficiency after menopause causes changes within the urogenital tract. A new study found significantly lower levels of oestrogen in perimenopausal and postmenopausal women with stress urinary incontinence compared with those without symptoms.
A new review looks at cervical cancer screening in the era of HPV vaccination. The review notes that trials have demonstrated the efficacy and safety of vaccines against HPV infection, but the complete effect of HPV vaccination as a cancer prevention strategy may not be fully evident for decades, given the slow progression from HPV infection to the development of cervical cancer.
Adjusted rates for cervical cancer do not decline until age 85, signaling a need for ongoing surveillance, according to a new study in the American Journal of Preventive Medicine