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Stem cells help repair tissue mainly by releasing beneficial substances, not by replacing damaged cells.

Antidepressants, 5α-reductase inhibitors, and isotretinoin can cause long-lasting sexual dysfunction.

Nanoparticles show promise for better wound healing, but more research is needed to ensure safety and effectiveness.

Fetal cells could improve skin repair with minimal scarring and are a potential ready-to-use solution for tissue engineering.

Adrenal disorders can cause lasting brain and behavior issues in children.

The document concludes that identifying the cause of amenorrhea is crucial for proper treatment.

5-alpha reductase inhibitors slightly increase the risk of sexual and mood side effects, and breast growth in men.

Hair follicles on the scalp interact with and respond to the nervous system, influencing their own behavior and growth.

Amenorrhea is when a woman doesn't have periods, with primary amenorrhea starting by age 15 or within five years of breast development, and secondary amenorrhea when periods stop for three months. It affects 3-4% of women not pregnant, breastfeeding, or in menopause, mainly due to polycystic ovary syndrome, hypothalamic amenorrhea, hyperprolactinemia, and ovarian failure.

Finasteride reduces alcohol withdrawal effects, especially in female mice.

Post-finasteride syndrome causes lasting sexual, neurological, and physical side effects in some people after taking finasteride.

Scientists identified three genes important for processing certain brain chemicals, thyroid hormones, and medications.

Recognizing and managing skin-related psychiatric disorders in children is crucial for effective treatment.

The model showed that randomness accurately describes individual hair growth cycles and that synchronization can cause large fluctuations not seen in humans.

Amenorrhea, or the absence of periods, should be evaluated by age 15 or within five years of early breast development, and is most commonly caused by conditions like polycystic ovary syndrome and hypothalamic amenorrhea.

Dog hair grows back in about 14 weeks after being clipped for surgery, and the season doesn't really affect this growth rate.

Moderately high prolactin levels do not cause hair loss in women.

Inositol was not more effective than a placebo in treating trichotillomania.

Melatonin-loaded nanocarriers improve melatonin delivery and effectiveness for various medical treatments.

Finasteride may cause lasting sexual, mental, and physical symptoms; use with caution.

Substance abuse can cause various skin problems, including marks from injections, sores, premature aging, and increased cancer risk.

Zebrafish larvae are used to study and find treatments for ear cell damage because they are easier to observe and test than mammals.

About 15% of adolescent girls in a region of India have Polycystic Ovarian Syndrome, which is more common in those born by cesarean, with wisdom teeth, or with central obesity.

5-alpha reductase inhibitors can cause sexual, neurologic, endocrine, and cardiovascular side effects, but these are rare and usually stop after ending treatment.

Sebum production varies by individual and is influenced by age, gender, and hormones, affecting skin and hair health.

Toxoplasma gondii infection may increase testosterone levels in males.

Vegetarians should take B vitamin supplements to avoid health issues.

New medications are improving depression treatment, emphasizing accurate diagnosis and chronic care.

Female rats showed more panic-related behavior than males, influenced by hormonal cycles and certain drugs.

Both fluoxetine and clomipramine effectively treat dog lick dermatitis, but fluoxetine works faster with lower recurrence, while clomipramine has fewer side effects.