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Low-dose finasteride may cause fertility issues, but stopping it can improve sperm quality and lead to pregnancy.

A certain gene variant may increase the risk of polycystic ovary syndrome in Chinese women.

Rare changes in the KRT82 gene are linked to a higher risk of Alopecia Areata.

Dihydrotestosterone (DHT) is crucial for conditions like male-pattern baldness and acne, and measuring a byproduct, androstanediol glucuronide, is a better way to assess DHT's effects than DHT blood levels.

The Asiatic lion has very low genetic diversity and unique genetic traits, highlighting the need for its conservation.

Blocking the enzyme 5α-reductase can shrink the prostate and help treat enlarged prostate issues.

Genetics and hormones play a role in male and female hair loss, but more research is needed to fully understand it.

The length of the CAG repeat in the androgen receptor gene affects the risk and progression of prostate cancer, BPH, infertility, and undermasculinized genitalia.

Recognizing oral symptoms can help diagnose and treat blood and nutritional diseases early.

Advancements in male reproductive medicine are ongoing, but more research and improved treatments are needed in several areas.

AGA, a common hair loss, is caused by genetics, hormones, age, and environmental factors.

Hormones, especially testosterone and DHT, are key for penis development and function, and testosterone therapy may help with erectile dysfunction in those with low levels.

A thorough initial check-up is essential before sperm banking to ensure the best chance of preserving good quality sperm.

Genetic mutations can affect female sexual development, requiring personalized medical care.

Men with early balding should be checked for metabolic syndrome, as there's a link between the two.

Lgr5 is a marker for active, long-lasting stem cells in mouse hair follicles.

Fat-related cells are important for initiating hair growth.

The enzyme steroid sulfatase is linked to breast cancer and other conditions, and inhibitors are being developed for treatment.

The Rotterdam Study updated findings on elderly health, focusing on heart disease, genetics, lifestyle effects, and disease understanding.

AGA causes hair loss by shrinking hair follicles due to DHT binding, and can be treated with finasteride and minoxidil.

Hair loss needs more research for better treatments.

Wnt signaling controls whether hair follicle stem cells stay inactive or regenerate hair.

Men generally have more severe COVID-19 cases and higher death rates than women due to biological differences.

A genetic region near the PAX1 gene is linked to a higher risk of scoliosis in females.

Minoxidil and finasteride effectively treat hair loss.

Amenorrhea is relatively rare and initial testing should check FSH, TSH, and prolactin levels.

Researchers created a fully functional, bioengineered skin system with hair from stem cells that successfully integrated when transplanted into mice.

Fetal skin cells from a cell bank heal wounds faster and with less scarring than adult cells.

The document explains how the male reproductive system works, its role in making testosterone, and how conditions like obesity can disrupt it, leading to low testosterone and fertility issues.

The document concludes that for hair and feather growth, it's better to target the environment around stem cells than the cells themselves.