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Diagnosing hair loss disorders needs clinical, dermoscopic, and histological differences, and checking menstrual cycle, weight changes, drug therapy, and nail changes.

Hair disorders are caused by a complex mix of biology, genetics, hormones, and environmental factors, affecting hair growth and leading to conditions like alopecia.

The study found that mouse sweat glands develop before birth, mature after birth, and have specific keratin patterns.

Prenatal stress changes how male and female rats enjoy rewards differently, linked to sex hormones.

Chinese patients with primary cicatricial alopecia often have folliculitis decalvans, benefit from treatment, but may experience relapse, with dermoscopy being a useful diagnostic tool.

A gene deletion causes the "hairless" trait in Iffa Credo rats.

Finasteride temporarily lowers male rat fertility without affecting libido.

Methotrexate effectively treated a 2-year-old's generalized pustular psoriasis without side effects.

Consider benefits and risks of new alopecia treatments for safety.

Platelet lysate is more effective than activated autologous platelet-rich plasma or saline in improving hair growth after hair restoration surgery.

Finasteride may negatively affect male fertility.

Finasteride treats enlarged prostate and baldness, but may cause limited urinary improvement and sex-related side effects.

Stopping the pill and giving birth both caused hair loss.

A woman had both Graham Little-Piccardi-Lassueur syndrome, causing hair loss, and complete androgen insensitivity syndrome, making her genetically male but physically female. This suggests androgens don't affect the hair loss condition.

Birth control pills help treat skin and hair growth problems linked to high male hormone levels.

The document concludes that correct diagnosis of alopecia types is crucial, scalp biopsies are important, and more research is needed.

Lack or blocking of SRD5a, a key component in hormone creation, can lead to conditions like pseudohermaphrodism and affect hair growth, bone mass, muscle strength, and reproductive health. More research is needed on its regulation from fertilization to adulthood.

High levels of male hormones in pregnant mice cause heart enlargement and poor heart function in their female babies.

Researchers identified specific genes that are important for mouse skin cell development and healing.

An 8-year-old girl with vitiligo developed extra hair growth on her knee after using tacrolimus ointment.

Hair and nails are similar keratin structures with different shapes and growth, affected by the same diseases and environmental factors.

Using micro-needling, low-level laser therapy, and platelet-rich plasma together significantly improves hair growth in people with hair loss.

PRP shows promise for improving facial wrinkles, skin elasticity, and hair growth, but more research is needed to standardize its use and understand its effects.

Dogs with generalized discoid lupus erythematosus have similar symptoms to humans and need continuous treatment.

MED1 affects skin wound healing differently in young and old mice.

The research explains how a human enzyme binds and processes its substrate, which could relate to its role in biological functions and hair loss.

Finasteride causes lasting fertility decrease in rats.

Transverse scalp sections are better for diagnosing non-scarring hair loss, while vertical sections are better for a specific scarring hair loss called lichen planopilaris.

New method measures minoxidil concentration faster, more accurately, and automatically.

Hair shaft dysplasias are abnormal hair conditions that can be inherited or acquired and may signal other health issues, with limited treatment options available.