Neurosteroids help regulate oxytocin levels, especially during stress and pregnancy, to protect against premature labor.
3 citations,
February 2018 in “Human Reproduction” A man with testotoxicosis was fertile despite low FSH levels, suggesting high testosterone may allow sperm production without FSH.
September 2018 in “Fertility and Sterility” High levels of testosterone and anti-Müllerian hormone before pregnancy are linked to a higher risk of newborns needing intensive care.
11 citations,
October 2020 in “General and comparative endocrinology” Male C57BL/6 mice show age-related fluctuations in certain hormones and their ratios in both blood and hair.
29 citations,
February 1987 in “General and comparative endocrinology” Thyroid and gonadal hormones control seasonal hair growth and molting in male European badgers.
11 citations,
January 2017 in “Journal of Endocrinology/Journal of endocrinology” Female mice with disrupted 5α-reductase 1 had significant metabolic issues, including stress response problems, insulin resistance, liver fat buildup, and obesity.
10 citations,
February 2007 in “Current Opinion in Endocrinology, Diabetes and Obesity” Low birthweight and rapid weight gain after birth may increase the risk of developing polycystic ovary syndrome.
49 citations,
August 1996 in “The Journal of Clinical Endocrinology and Metabolism” The combination of cyproterone acetate and testosterone enanthate is highly effective in preventing sperm production and could be a good reversible male contraceptive.
1 citations,
July 2015 in “AACE clinical case reports” Removing both ovaries treated the woman's excess male hormone symptoms.
July 2024 in “Journal of Pediatric Endocrinology and Metabolism” Ovarian hyperthecosis should be considered in young women with severe male-like symptoms and can be managed with hormone treatments.
1 citations,
November 1998 in “Journal of Small Animal Practice” The dog had a Sertoli cell tumor, which was successfully removed with surgery.
205 citations,
August 2007 in “Experimental Cell Research” Stem cell niches are crucial for regulating stem cell renewal and differentiation, and understanding them can help in developing regenerative therapies.
30 citations,
August 1992 in “The Journal of Clinical Endocrinology and Metabolism” Finasteride doesn't affect hormone levels in normal men.
4 citations,
January 2013 in “PubMed” Testosterone and finasteride raise insulin and zinc, lower chromium in male rats.
2 citations,
May 2006 in “Women's Health Medicine” Ovulation disorders are a major cause of infertility and menstrual problems in women.
May 2023 in “Animal Reproduction Update” High levels of cortisol in hair show long-term stress which can lower fertility in animals.
1540 citations,
October 2008 in “Fertility and Sterility” The report concludes that PCOS is mainly a condition of excess male hormones and its definition may change as new information is discovered.
430 citations,
July 2002 in “Journal of Endocrinology” The hypothesis suggests that PCOS may start early in life due to genetic and environmental factors, influencing future reproductive and metabolic problems.
284 citations,
February 2008 in “Pediatrics” Chemicals and body size might change when puberty starts and progresses, but more research is needed to confirm this.
142 citations,
January 2019 in “Frontiers in Neuroendocrinology” Postpartum depression is linked to changes in brain chemicals, inflammation, stress, and certain genes, and can potentially be identified by markers like specific steroids, serotonin levels, and vitamin D levels.
113 citations,
March 2018 in “Biological reviews/Biological reviews of the Cambridge Philosophical Society” Animals that change color with the seasons mainly do so in response to daylight changes, but climate change is causing camouflage problems that may require evolutionary changes.
90 citations,
October 1998 in “Animal Reproduction Science” Mouflon rams mature gradually with changes in body, horns, and hormones linked to age and seasons, reaching full sexual maturity well after puberty.
51 citations,
November 2005 in “Journal of Medical Primatology” Alopecia in captive rhesus macaques is affected by season, sex, age, housing, and stress, with complex links between stress hormones and hair loss.
49 citations,
April 2016 in “International journal of molecular sciences” Shift nurses show altered body temperature and stress hormone levels, suggesting their body clocks adjust to irregular schedules.
44 citations,
April 2008 in “The Journal of Clinical Endocrinology & Metabolism” Women with PCOS have similar levels of certain proteins compared to women without PCOS, and these proteins don't independently cause PCOS.
30 citations,
January 2015 in “BioMed Research International” Continuous light exposure in rats leads to PCOS-like symptoms and suggests sleep habits might affect the disorder's development.
28 citations,
April 2014 in “Hormones” Higher androstenedione levels in women with PCOS are linked to more severe symptoms.
26 citations,
July 1995 in “Neurobiology of Aging” Finasteride affects prostate weights and pituitary activity differently with age.
26 citations,
November 1993 in “Progress in Neuro-psychopharmacology & Biological Psychiatry” Treatment during development affects hormone balance and sexual behavior in male rats.
17 citations,
October 2006 in “Molecular and Cellular Endocrinology” The L457(3.43)R mutation in the human lutropin receptor causes increased activity and hormone insensitivity, leading to precocious puberty.