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Amenorrhea is when a woman doesn't have periods, with primary amenorrhea starting by age 15 or within five years of breast development, and secondary amenorrhea when periods stop for three months. It affects 3-4% of women not pregnant, breastfeeding, or in menopause, mainly due to polycystic ovary syndrome, hypothalamic amenorrhea, hyperprolactinemia, and ovarian failure.

WNT10A mutations cause varied symptoms in patients with odonto-onycho-dermal dysplasia.

Amenorrhea, or the absence of periods, should be evaluated by age 15 or within five years of early breast development, and is most commonly caused by conditions like polycystic ovary syndrome and hypothalamic amenorrhea.

Detailed patient history and physical exams are crucial for diagnosing hair loss.

Various treatments exist for hair loss, but more research is needed for better options.

Disrupted sleep patterns can harm skin and hair cell renewal, but melatonin might help.

Mouse Scube3 affects teeth, tongue, vibrissae, and eye development, but not facial structure or limb growth.

The document concludes that various childhood hair and nail disorders exist, some may improve on their own, and advances in genetics and immunology could enhance treatment and counseling.

Polycomb Repressive Complex 2 is not needed for hair regeneration.

The document reports findings on genetic research, including ethical concerns about genome editing, improved diagnosis of mitochondrial mutations, solving inherited eye diseases, confirming gene roles in epilepsy, linking a gene to aneurysms, and identifying genes associated with age-related macular degeneration.

Skin stem cells can help improve skin repair and regeneration.

Cats lose fur due to various reasons, including allergies, infections, genetics, hormones, diet, cancer, stress, and some conditions are treatable while others are not.

The document reports unique growth lines in a child after Stevens-Johnson syndrome, skin reaction from parsnips and sun in a girl, and itchy skin with xanthomas in a boy with Alagille syndrome.

Dermatological conditions are complex and treatments often have mixed results.

Careful selection of mice by genetics and age, and controlled housing conditions improve the reliability of hair regrowth in wound healing tests.

Hair microscopy is a simple and cost-effective method to help diagnose systemic diseases in children.

ATP-dependent chromatin-remodeling complexes are crucial for gene regulation, cell differentiation, and organ development in mammals.

Increasing mir-302 turns human hair cells into stem cells by changing gene regulation and demethylation.

Human hair follicle cells can be turned into stem cells that may help clone hair for treating hair loss or burns.

The review concludes that innovations in regenerative medicine, tissue engineering, and developmental biology are essential for effective tissue repair and organ transplants.

Skin organoids from stem cells can help study and treat skin issues but face some challenges.

Stem cell niches are adaptable and key for tissue maintenance and repair.

Injecting CHIR-99021 into goose embryos improves feather growth by changing gene activity and energy processes.

Human hair follicles can be used to create stem cells that might help clone hair for treating hair loss or helping burn patients.

The LncRNA AC010789.1 slows down hair loss by promoting hair follicle growth and interacting with miR-21 and the Wnt/β-catenin pathway.

Genes linked to fibrosis are more active in people with central centrifugal cicatricial alopecia.

ECM1-modified stem cells can effectively treat liver cirrhosis.

TNC+ fibroblasts play a key role in skin inflammation by interacting with T cells.

Small molecule drugs show promise for advancing regenerative medicine but still face development challenges.

Most hair follicle stem cells do not protect their DNA by dividing it unevenly.