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Some drugs can cause hair loss or increase hair growth, but these effects are usually reversible when the drug is stopped.

Skin aging is due to impaired stem cell mobilization or fewer responsive stem cells.

Male hormones affect COVID-19 severity and certain drugs targeting these hormones could help reduce the risk.

The HR protein helps hair grow by blocking a hair growth inhibitor, aiding in hair follicle regeneration.

Stem cells in the hair follicle are regulated by their surrounding environment, which is important for hair growth.

Low fluence photoepilation temporarily removes hair by targeting the hair follicle's pigmented area without severe damage.

Human hair follicle organ culture is a useful model for hair research with potential for studying hair biology and testing treatments.

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

The document concludes that understanding hair structure is key to diagnosing hair abnormalities and recommends gentle hair care for management.

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

Hair follicles produce and respond to melatonin, affecting hair growth and sensitivity to estrogen.

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

Insulin sensitizers may slightly reduce hirsutism but are less effective than other treatments.

Fibroblast growth factor receptor signaling controls cell development and repair, and its malfunction can cause disorders and cancer, but it also offers potential for targeted therapies.

Hair grows faster in the morning and is more vulnerable to damage from radiation due to the internal clock in hair follicle cells.

Children, especially teenagers, can get severe SARS-CoV infection with symptoms similar to adults, but they typically recover well with supportive care.

Minoxidil and finasteride can slow hair loss and stimulate regrowth, but won't restore all lost hair or reverse complete baldness.

The document concludes that hair is complex, with a detailed growth cycle, structure, and clinical importance, affecting various scientific and medical fields.

We need more research to better understand human hair follicle stem cells for improved treatments for hair loss and skin cancer.

The document concludes that assessing hair follicle damage due to cyclophosphamide in mice involves analyzing structural changes and suggests a scoring system for standardized evaluation.

A genetic region near the PAX1 gene is linked to a higher risk of scoliosis in females.

Prolactin affects hair growth and skin conditions, and could be a target for new skin disease treatments.

Androgens can both stimulate and cause hair loss, and understanding their effects is key to treating hair disorders.

No treatment fully prevents hair loss from chemotherapy yet.

The document concludes that adult mammalian skin contains multiple stem cell populations with specific markers, important for understanding skin regeneration and related conditions.

The p75 neurotrophin receptor is important for hair follicle regression by controlling cell death.

Different hair evaluation methods have their own pros and cons, and using multiple methods together is best for accurate hair loss diagnosis and tracking.

The document concludes that understanding the genes and pathways involved in hair growth is crucial for developing treatments for hair diseases.

Minoxidil and finasteride effectively treat hair loss.

Versican, a protein, is less present in thinning hair follicles and this decrease might contribute to common hair loss in men.