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

In 1994, medical events like the "Hair Restoration and Aesthetic Nasal Surgery Symposium" were held, where surgeries were observed, and new officers were appointed for the Israeli Society for Aesthetic and Reconstructive Surgery in 1993.

Looking older on the outside might be linked to aging faster on the inside and can be affected by lifestyle choices and health risks.

Cross-sex hormone therapy is important for managing gender dysphoria and requires careful monitoring and healthcare provider education.

Hormone treatment before hypospadias surgery can increase penis size and reduce surgery complications.

Dihydrotestosterone treatment can help penis growth in boys with 5α-reductase deficiency but doesn't fully normalize size after puberty.

Testosterone undecanoate safely and effectively increased penis size in male children with 5-alpha-reductase deficiency.

Pre-operative hormone treatment for hypospadias surgery might improve outcomes, but more research is needed to confirm.

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.

Finasteride side effects in young men may be linked to specific gene variations.

Testosterone therapy improved physical and social health in a male with 49,XXXXY syndrome.

The study found unique microscopic features for hair or feather in five animal ingredients in Shenrongbian pill.

Testosterone and dihydrotestosterone treatments can help with penile growth in males with 5α-reductase type 2 deficiency, with dihydrotestosterone being more effective in infancy.

The document does not determine if adults with aphallia are fertile.

A 10-year-old boy with abnormal genital development had surgery and tests to find the cause and plan treatment.

Using buccal mucosa for hypospadias repair in children is effective and reduces complications.

Finasteride treats baldness but may cause lasting sexual side effects.

Mouse genital development depends on male or female hormones for specific features.

Gender affects hair and scalp characteristics, with differences in hormone responses, graying patterns, and trace metals.

Both genes and environmental factors like chemicals may contribute to the increase in hypospadias, but the exact causes are still unclear.

PFS and PSSD are similar conditions with persistent sexual dysfunction after stopping medication.

A 17-year-old female with adrenogenital syndrome produces very high levels of androgens, which prevent complete feminization despite high estrogen doses.

New treatments for long-lasting erections improve outcomes but must be timely to avoid lasting damage.

Flutamide and finasteride reduced sex hormones in pregnant hyenas, but increased them in males.

The document explains hair and nail biology, common hair loss conditions and treatments, oral and genital skin diseases, and the risks and treatments associated with squamous cell carcinoma.

A 19-year-old male with delayed puberty was successfully treated for a condition that prevents normal hormone production.

Colchicine causes hair loss by damaging hair follicles.

Anabolic steroids can build muscle and strength but have risks and need more research on their clinical benefits and side effects.

The document concludes that the 5 alpha-reductase enzymes are important in steroid metabolism and related to various human diseases, with inhibitors used to treat conditions like male pattern baldness and prostate issues.

Antiandrogens like flutamide are effective in treating conditions like prostate cancer and hair loss, but there's a need for more potent versions. Understanding their structure can help develop better treatments.