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Different types of stem cells with unique roles exist in blood, skin, and intestines, and this variety is important for tissue repair.

Matriptase is crucial for keeping epithelial tissues healthy and functioning properly.

Microneedles help improve skin appearance and deliver skin treatments effectively, but safety concerns need more research and regulation.

Mouse hair follicle cells briefly grow during the early hair growth phase, showing that these cells are important for starting the hair cycle.

African Americans have less hair density than whites.

Mice hair growth patterns get more complex with age and can change with events like pregnancy or injury.

Isotretinoin effectively treats severe acne and similar conditions, but has common, mostly reversible side effects, requiring careful patient monitoring.

Stem cell plasticity is crucial for wound healing but can also contribute to cancer development.

IL-2 treatment causes skin eruptions and other reversible side effects, and may play a role in psoriasis.

The document describes how to tell different types of non-scarring hair loss apart by looking at hair and scalp tissue under a microscope.

Male hormones like testosterone may make COVID-19 worse, and testing for sensitivity to these hormones could help predict how severe a patient's symptoms might be. Treatments that reduce these hormones are being explored.

The telogen phase of hair growth is active and important for preparing hair follicles for regeneration, not just a resting stage.

Rhodococcus equi causes severe pneumonia in young foals, and effective vaccines are needed due to foals' weak immune responses.

Women with PCOS and higher androgen levels are more likely to have fatty liver disease.

Potassium channel openers could help treat cardiovascular diseases and asthma but require better targeting to specific tissues for effective use.

Most women with PCOS have high levels of male hormones, and free testosterone is the best marker for this.

The update highlights that non-classic congenital adrenal hyperplasia is common in women with excess male hormones, requires specific hormone tests for diagnosis, and has various treatment options depending on age and symptoms.

Thyroid hormones help hair grow, reduce hair loss, and increase hair pigment.

Stress increases nerve fibers and immune cell activity in mouse skin, possibly worsening skin conditions.

Minoxidil increases hair weight and count temporarily in men with hair loss.

People with PCOS, especially if obese, often have NAFLD, linked to obesity, insulin resistance, and high androgen levels.

Minoxidil is the only FDA-approved topical drug for treating male or female pattern hair loss, and other medications like finasteride and dutasteride can also increase hair growth.

Finasteride lowers risk of urinary issues and surgery by over 50% in 4 years.

Corkscrew hair may be a new sign for quickly diagnosing scalp fungus in black children.

Foals with Rhodococcus equi infection often have other health problems that lower their chances of survival.

Preoperative pain assessment, regional anesthesia, and vitamin C can help prevent CRPS after surgery.

Stress increases a factor in mice that leads to hair loss, and blocking this factor may prevent it.

UV radiation can help sterilize wounds and promote healing but requires careful use to avoid damaging cells.

Skin-derived precursors in hair follicles come from different origins but function similarly.

Lampreys have a functional vitamin D receptor that may help detoxify harmful substances.