Sort   by:  
 Page size 
UnknownCharacterisation and localisation of the endocannabinoid system components in the adult human testis.
Heavy use of cannabis (marijuana) has been associated with decreased semen quality, which may reflect disruption of the endocannabinoid system (ECS) in the male reproductive tract by exogenous cannabinoids. Components of ECS have been previously described in human spermatozoa and in the rodent testi...
S-EPMC6753062 | biostudies-literature
UnknownVariant <i>PNLDC1</i>, Defective piRNA Processing, and Azoospermia.

Background

P-element-induced wimpy testis (PIWI)-interacting RNAs (piRNAs) are short (21 to 35 nucleotides in length) and noncoding and are found almost exclusively in germ cells, where they regulate aberrant expression of transposable elements and postmeiotic gene expression. Critical to th...
S-EPMC7615015 | biostudies-literature
UnknownMale Reproductive Disorders and Fertility Trends: Influences of Environment and Genetic Susceptibility.
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 (2.1 child per woman). In the United States, where TFR has also declined, there are ethnic differences. Caucasians...
S-EPMC4698396 | biostudies-literature
UnknownSemen quality of 1559 young men from four cities in Japan: a cross-sectional population-based study.
To provide information of semen quality among normal young Japanese men and indicate the frequency of reduced semen quality. Cross-sectional, coordinated studies of Japanese young men included from university areas. The men had to be 18-24 years, and both the man and his mother had to be born in Jap...
S-EPMC3641477 | biostudies-literature
UnknownSemen quality of young men in Switzerland: a nationwide cross-sectional population-based study.
BACKGROUND:Sperm counts have been steadily decreasing over the past five decades with regional differences in the Western world. The reasons behind these trends are complex, but numerous insights indicate that environmental and lifestyle factors are important players. OBJECTIVE:To evaluate semen qua...
S-EPMC6790593 | biostudies-literature
Sort   by:  
 Page size