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Increased K+ permeability alone may not promote hair growth.

Finasteride may cause sexual dysfunction by reducing epinephrine levels.

Atopic dermatitis patients have much higher acetylcholine levels in their skin, which may cause itching.

Retinoids increase steroid sulfatase activity in leukemia cells through RARα/RXR and involves certain pathways like phosphoinositide 3-kinase and ERK-MAP kinase.

DHEA boosts bone cell growth and differentiation in elderly stem cells.

MRI can show unusual brain changes in adrenomyeloneuropathy.

Higher PHGDH levels cause unusual melanin buildup in hair follicles.

Seeing trauma causes fear in mice by lowering their natural fear-reducing hormones.

Midazolam impairs learning and memory by increasing neurosteroids through specific receptor activation.

Pregnancy and nursing increase certain brain activities in rats, but these changes disappear when the babies are taken away.

mTOR signaling helps activate hair stem cells by balancing out the suppression caused by BMP during hair growth.

Some patients taking finasteride or dutasteride may have ongoing sexual problems and depression even after stopping the medication.

The conclusion is that PCOS is caused by ovarian sensitivity to hormones and disrupted hormone control, possibly due to ovarian factors, and more research is needed.

Hair growth is influenced by interactions between skin layers, growth factors, and hormones, but the exact mechanisms are not fully understood.

Post-finasteride patients show changed neuroactive steroid levels, possibly causing erectile dysfunction and depression.

Melatonin implants and long daylight hours alter the timing of hormone release and hair growth in mouflon sheep.

Negative expectations can cause adverse effects in patients even without active treatment, and managing this nocebo effect involves better communication and patient-clinician relationships.

Many skin patients have mental health issues, but few dermatologists are well-versed in treating these conditions.

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

Finasteride treatment changes brain steroid levels and receptors, affecting brain function even after stopping treatment.

Finasteride given to baby rats causes anxiety-like behavior and worsens learning from punishment in adult rats.

Human hair follicle cells can be successfully transformed into different types of cells, but not more efficiently than other adult cells.

Many skin patients also have mental health issues, and doctors should treat both together.

Gilles de la Tourette syndrome is treatable, with behavioral therapy as a recommended first option and other treatments available for more severe cases.

Certain proteins and their receptors are more active during the growth phase of human hair and could be targeted to treat hair disorders.

Trichotillomania, a disorder where people compulsively pull out their own hair, often starts around age 12, is more common in adult females, and can be treated with behavior therapy and medication.

COVID-19 and hypopituitarism (reduced pituitary gland function) are linked, with the latter's related health issues potentially worsening COVID-19 outcomes, and COVID-19 possibly increasing risk for pituitary complications.

Estrogen and prolactin may play bigger roles in female hair loss than previously thought.

A small number of premenopausal female blood donors had high prolactin levels, often due to stress, and retesting is recommended to prevent misdiagnosis.

Finasteride use can cause lasting negative effects like sexual dysfunction, depression, anxiety, and cognitive issues.