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The FDA warned about safety issues with remdesivir and tofacitinib, finasteride is linked to suicidality, potent topical corticosteroids increase osteoporosis risk, henna can cause hemolysis in G6PD deficiency, chemotherapeutic agents can cause adverse reactions, drug interactions are common in cancer patients, ketamine can reduce at-risk drinking, high dose of anticholinergics increases dementia risk in Parkinson's patients, and prenatal exposure to second-generation antipsychotics increases pregnancy complications.

Water makes hair more flexible, especially the outer layer.

Hair differentiation starts earlier than thought, involving multiple type-II keratins.

Researchers found key regions in the mouse hairless gene that control its activity in skin and brain cells, affecting hair follicle function.

Mitochondria change shape to meet energy needs during cell movement.

The mutant HR bmh protein affects hair follicle formation by failing to repress vitamin D receptor activity.

A new mutation in the HR gene causes hair loss in a specific family.

Certain proteins help nerve cells branch, and other findings relate to cancer, stem cell behavior, and cell division.

Scientists discovered a unique hair protein, KAP24.1, with a special structure, found only in the upper part of hair cuticles.

Animal hair can curl tightly on its own, especially in foxes, due to changes in keratin.

Mouse hair keratins mHa1 and mHb4 can't form a strong network on their own in cells.

Keratin proteins are crucial for hair structure and strength.

Human hair has a complex, variable structure with a consistent matrix and double-twist pattern.

Wnt and SHH pathways help form hair follicles by coordinating cell processes.

TGF-β2 helps yak hair follicles enter the regression phase, while HSP70 tries to prevent it.

The method shows how hair lipids form specific patterns and their roles in hair structure.

Trichohyalin makes hair follicles stronger.

Different keratin types have unique amino acid patterns that are evolutionarily conserved.

The research identified key proteins and genes that may influence wool bending in goats.

A peptide from hair follicle stem cells promotes hair growth by activating specific skin cells.

Hair follicle stem cells use specific chromatin changes to control their growth and differentiation.

Disulfide bonds affect the melting behavior of hair's crystalline structure, but hair retains some stability even after these bonds are broken.

Wnt signaling is important for the change from the resting phase to the growth phase in human hair cycles.

Hair's molecular structure is mostly consistent, but genetic differences affect lipid types, which could help diagnose diseases.