Testosterone is a steroid hormone from the androgen group. In mammals, testosterone is primarily secreted in the testes of males and the ovaries of females, although small amounts are also secreted by the adrenal glands
University of Notre Dame Associate Professor of Anthropology Lee Gettler and his collaborators have drawn on data collected over more than 30 years from almost 1,000 men in the Philippines to help shed light on the importance of adolescence and father-son experiences to sons' adult testosterone patterns.
Scientists recently succeeded in creating Leydig cells from human induced pluripotent stem (iPS) cells.
In this interview, we speak to Dr. Miguel J. Xavier about his latest research into male infertility and how de novo mutations may play a part.
Recent research indicates that a familiar inflammatory skin condition might arise due to inadequately regulated sex hormones.
Hormonal contraceptives, e.g. the pill, the patch, and the vaginal ring, contain synthetic hormones that prevent pregnancy by either stopping ovulation, changing the cervical mucus to stop sperm from passing through the cervix and finding an egg, or changing the womb's lining to prevent a fertilized egg from being implanted in it.
According to an analysis of sex variations in the genetics of bipolar disorder, schizophrenia, and major depressive disorders.
Arsenic exists ubiquitously in an organic or inorganic state in the environment. General populations are commonly exposed to arsenic by digestion.
In social hierarchy, rank is a condition that is not exclusively claimed by human beings. In the animal world, male peacocks have vividly colored plumes to show dominance, while underwater, male fish exhibit an array of vivid colors to do the same.
Exposure to hydraulic fracturing fluid in drinking water has been shown to increase the risk of respiratory problems, premature births, congenital heart defects, and other medical problems.
The androgen receptor is considered the main driver of the growth and initiation of prostate cancer, which is known to be the second-leading cause of death in men.
In one of the first studies addressing the role of sex hormones' impact on stem cells in the gut, scientists outline new insights showing how a steroidal sex hormone, that is structurally and functionally similar to human steroid hormones, drastically alters the way intestinal stem cells behave, ultimately affecting the overarching structure and function of this critical organ.
Johns Hopkins Kimmel Cancer Center researchers from the Department of Radiation Oncology and Molecular Radiation Sciences identified a lipid-regulating protein that conveys what the researchers describe as "superpowers" onto prostate cancer cells, causing them to aggressively spread.