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A new genetic area linked to a rare hair loss condition was found on chromosome 13 in a Chinese family.

Men are more likely to have severe COVID-19 cases and fatalities than women due to factors like lifestyle, aging, and biological differences.

Scientists found a gene in mice that causes early hearing loss.

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

A 10-year-old boy with abnormal genital development had surgery and tests to find the cause and plan treatment.

Methotrexate side effects vary by race and sex.

Measuring reproductive hormones in brown bear hair could help identify their sex and reproductive state, but better collection methods or lab techniques are needed.

Cancer rates are increasing in developed countries, with estrogen, aging, low vitamin D3, and HPV infection as common causes.

Sardinians were historically short due to a mix of genetics and factors like disease and poor nutrition, but recent height increases suggest better living conditions had a bigger impact.

Sex hormones may affect COVID-19 severity, with estrogen possibly reducing risk and testosterone potentially increasing it.

Men and women get COVID-19 at similar rates, but men tend to get sicker and have a higher risk of dying, while women usually have stronger immune responses and vaccine reactions.

Metformin works better for adolescent girls with PCOS who have certain genetic variations.

Dehydroepiandrosterone (DHEA) is a prohormone important for producing sex steroids and has potential health benefits.

The research concluded that selection significantly shaped the genetic variation of the X chromosome, with certain regions affected by past selective events.

Sex hormones affect hair and feather growth and may help manage alopecia and hormone-dependent cancers.

Sex hormones affect hair growth and loss, and treatments for related hair diseases include various medications, hair transplantation, and light therapy.

Certain genes and X chromosome patterns may significantly contribute to the development of hair loss.

Three siblings with a rare genetic condition had abnormal sexual development and chose different gender identities, needing surgery and therapy.

Female donor to male recipient sex mismatch and positive ACA-IgG are key risk factors for vitiligo and alopecia areata in chronic GvHD patients.

Androgens like testosterone are important hormones for both men and women, made differently in each sex and affecting the body by regulating genes and quick interactions with cell components.

Certain genetic variations in the AR and ERβ genes can affect androgen levels in women.

The skin's ability to produce hormones is linked to various skin conditions, and better understanding this process could lead to new treatments.

Genes play a significant role in male-pattern baldness, and understanding them could lead to new treatments and insights into related health issues.

The safety and effectiveness of gender-affirming treatments for children are uncertain, with potential long-term risks like infertility.

The document concludes that blocking the internal pathways that create androgens might help treat cancers that depend on sex hormones.

The conclusion is that hair growth can be improved by activating hair cycles, changing the surrounding environment, healing wounds to create new hair follicles, and using stem cell technology.

The document concludes that for hair and feather growth, it's better to target the environment around stem cells than the cells themselves.

People who carry the 21-Hydroxylase Deficiency gene are not more likely to have excessive male hormone levels.

Early onset baldness in men may indicate a condition similar to PCOS, linked to heart disease, diabetes, and prostate issues.

ESR2 gene variations may be linked to female pattern hair loss.