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Postgraduate dermatology students should focus on practical training, core dermatology, and systematic learning, especially in their second and third years.

Photobiomodulation effectively treats hair loss in dogs with black hair follicular dysplasia.

Men who went through puberty later had lower sperm counts and altered hormone levels, possibly affecting fertility.

Certain maturity signs appear before and after the first release of sperm in boys.

The guideline recommends mental health involvement in diagnosing gender identity disorder and outlines hormone and surgical treatment protocols, emphasizing safety, informed consent, and long-term monitoring.

Male hormones may play a role in the development of heart disease, and more research is needed to understand their effects.

The European Society of Endocrinology advises individualized long-term management for PCOS, focusing on lifestyle changes, accurate diagnosis, and treatments for associated health risks and symptoms.

Understanding phenotypic plasticity is crucial for developing effective cancer therapies.

Dehydroepiandrosterone (DHEA) is a prohormone important for producing sex steroids and has potential health benefits.

Cushing's syndrome can cause serious health problems, and early treatment is crucial, but some issues may remain after treatment.

Myo-inositol supplements may improve insulin sensitivity and help with conditions like PCOS and gestational diabetes, but more research is needed.

Hair growth phase and certain genes can speed up wound healing, while an inflammatory mediator can slow down new hair growth after a wound. Understanding these factors can improve tissue regeneration during wound healing.

The modified Ferriman-Gallwey method is a useful tool for diagnosing hirsutism.

Removing part of the vitamin D receptor stops vitamin D from working properly.

Biomaterials with MSC-derived substances could improve tissue repair and have advantages over direct cell therapy.

The virus was not found in the semen and urine of a man who tested positive for COVID-19.

Dutasteride and finasteride may reduce sperm count and volume but don't affect movement or shape; effects are reversible after stopping.

Erectile dysfunction is increasingly common in men under 40, with many physical and psychological causes, and various treatment options available.

Blocking COX, especially COX-2, in the skin can reduce inflammation and pain and may help prevent skin cancer.

Male hormones, particularly DHT, are linked to male pattern hair loss, and treatments like finasteride can help, but they don't work for postmenopausal women's hair loss, which may have different causes.

Certain inhibitors slow down plant growth by causing early cell specialization without changing the cell development pattern.

Estrogens significantly influence hair growth by interacting with receptors in hair follicles and may help regulate the hair growth cycle.

Tributyltin exposure causes sex changes, sterilization, and decline in the snail Ocinebrina aciculata, risking its extinction.

Humans lost body hair relatively recently in evolution.

TNF alpha in skin cells causes weight loss, hair and fat issues, and skin inflammation in mice.

Trilostane effectively improved symptoms in dogs with a certain adrenal gland disorder.

More research is needed to confirm safflower's traditional medicinal uses.

Androgens, like testosterone, are crucial for early testicular descent in rats.

Some viruses can cause cancer by changing cell processes and avoiding the immune system; vaccines and targeted treatments help reduce these cancers.

Finasteride treats enlarged prostate and hair loss, but may cause side effects in some patients.