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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.

Thyroid and gonadal hormones control seasonal hair growth and molting in male European badgers.

These drugs cause hair growth without affecting testosterone or adrenal hormones.

Finasteride negatively affects fish reproduction and gonadal development.

The protein StAR is found in 17 different organs and can affect hair loss and brain functions, but its full role is not yet fully understood.

Gonadal hormones may influence sex differences in play fighting in animals, but their effect on human spatial behavior is unclear and needs more research.

Gonadal hormones significantly affect the severity of alopecia areata in mice.

The document concludes that accurate diagnosis of male and female gonadal disorders is crucial for effective treatment and better patient outcomes.

Blocking testosterone speeds up wound healing in males.

Lack of essential fatty acids in diet causes reproductive issues and poor health in male rabbits.

Eating high glycemic foods and drinking milk may worsen acne by increasing insulin and IGF-1 levels.

High doses of ethynylestradiol in rats caused growth issues, organ changes, and some tumors, but didn't increase overall tumor rates.

Testosterone may influence COVID-19 severity and outcomes.

High doses of norethindrone acetate in rats caused various organ changes but didn't significantly increase tumor rates.

Spironolactone reduces the number of androgen receptor sites in rat skin by blocking them with its metabolite.

Male rats have more somatostatin neurons than females due to testosterone converting to estrogen during early development.

Changes in testosterone and estrogen receptor genes can affect how men age, influencing body fat, hair patterns, and possibly leading to skin disorders.

Low birthweight and rapid weight gain after birth may increase the risk of developing polycystic ovary syndrome.

Pediatric endocrinologists should provide early fertility counseling and preservation options to young patients at risk of infertility.

Age affects how certain proteins involved in COVID-19 infection are expressed in mice, but sex hormones and heart injury do not.

DSDs are birth conditions causing unusual sex development, managed with personalized care and sometimes surgery, but still lack a standard treatment approach.

Higher EULAR/ACR scores in SLE patients predict more organ damage.

Conditions affecting sex development show that sexual diversity is a natural part of human variation.

Stress and hormones like progesterone can affect absence seizures, but their effects change with different life stages.

Testosterone significantly affects sexual desire in both men and women, but its impact on women is more complex and influenced by psychological factors.

Testosterone replacement therapy can prevent men from fathering children and should not be used by those wanting to stay fertile.

Finasteride exposure harms tadpole reproduction and hormone balance.

Early puberty is more common in girls and African-American children, possibly due to nutrition, obesity, stress, and environmental factors, and is treated with hormone therapy.

The testes produce sperm and hormones essential for male development.

Blocking CRF1 receptors improved male hormone levels and reduced testicular tumor size in men with a specific adrenal condition.