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PrEP doesn't increase STI risk in high-risk men, anti-androgen drugs may lower ICU admission for male COVID-19 patients, a 3-point injection is better for crow's feet, and the 'Geriatric-8' tool could help assess frailty in older skin cancer patients.

The author clarifies that alopecia areata incognito and diffuse alopecia areata are different types of hair loss with unique symptoms and challenges in diagnosis.

Trichoscopy is crucial for diagnosing and assessing alopecia areata in children.

Finasteride and low-level laser therapy are similarly effective for frontal pattern hair loss.

The G60S Connexin43 mutation causes hair growth issues and poor hair quality in mice, similar to human ODDD patients.

Oral steroids may effectively treat recurrent intussusception in children with ILH, possibly avoiding surgery.

Transtherapy significantly improved moderate to severe acne scars without side effects.

The document concludes that using a phototrichogram with a protractor and tapeline is a reliable and noninvasive way to measure hair loss.

Polarized light therapy helps hair regrowth in alopecia areata patients.

Natesto nasal gel improves erectile function and mood in men with low testosterone within 30 days.

Rubbing finasteride on the scalp helps with hair loss.

Both sildenafil and minoxidil effectively treat male hair loss, but impact hair differently.

More dermal papilla cells in hair follicles lead to larger, healthier hair, while fewer cells cause hair thinning and loss.

Minoxidil can cause scalp comedones and acne.

The Trichoscopy Derived Sinclair Scale offers a more accurate and reliable way to measure hair loss severity than the traditional visual method.

Two-photon microscopy effectively tracks live stem cell activity in mouse skin with minimal harm and clear images.

The two-step procedure of fat grafting followed by hair grafting improves scalp and facial scar correction.

Two distinct pathways direct proteins to vacuoles in Arabidopsis, affecting root hair growth and protein targeting.

Researchers created a new mouse model for studying Citrullinemia Type I and similar conditions, showing symptoms and treatment responses like those in humans.

Two mouse mutations cause similar hair loss despite different skin changes.

Finasteride 5 mg effectively reduces urinary symptoms and PSA levels in men with enlarged prostates, with few sexual side effects.

A mother and daughter have a rare genetic hair loss disorder with no effective treatment.

Two cycles of ABVD chemotherapy followed by 20 Gy radiotherapy is the new standard for early-stage Hodgkin lymphoma due to lower toxicity and similar effectiveness.

A specific gene change plus an additional mutation in the same gene cause hereditary trichilemmal cysts.

The Juri flap procedure is effective for hair transplantation but requires careful patient selection and skilled surgeons.

Removing centrosomes from skin cells leads to thinner skin and stops hair growth, but does not greatly affect skin cell differentiation.

Testosterone affects androgen receptors and lipid storage in cells, while DHEA does not convert to testosterone or affect these receptors in the same way.

The conclusion is that the cornea has two types of stem cells, with Lrig1+ cells being key for renewal in aging corneas, independent of CD44.

One minoxidil-sensitive potassium channel exists in human hair follicles.

Scalp cooling significantly reduces hair loss in chemotherapy patients.