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This study found that using poly(ethylene imine) as a counterion reagent improved the colorability and shampoo fastness of bleached human hair when dyed with an acid dye.

This study found that the spermidine analog N1-methylspermidine prolonged hair follicle growth and decreased inflammation and oxidative stress in cultured hair follicles, suggesting potential relevance for treating inflammatory scalp diseases.

PABA helps prevent gray hair and hair loss in mice.

This review discusses the essential roles and complex regulation of PP2A in various physiological processes and reports no clinical results; the authors highlight the need for further mouse model research to explore PP2A's therapeutic potential.

This study found that good quality protein supplements or rumen-protected methionine increased fiber yield in Angora goats and, to a lesser extent, in Cashmere goats.

This study found that corin, a protease, plays a crucial role in eccrine sweat glands by promoting sweat and salt excretion, which helps regulate electrolyte balance.

This study found that progesterone can increase glycine release in rat brainstem neurons through its conversion to allopregnanolone, which modulates presynaptic GABA receptor activity.

Hair amino acid levels can indicate metabolic disorders.

This study found extensive co-evolution of polyglutamine repeat lengths in neural protein clusters, highlighting their potential role in neurocognitive variation and neuropsychiatric disease development.

This study demonstrates that PAD1 and PAD3 are involved in hair follicle differentiation, while PAD1 and PAD2 may play a role in the physiology of sweat glands and arrector pili muscles.

This study suggests that finasteride may inhibit the enzyme phenylethanolamine N-methyltransferase, which could contribute to its sexual and psychological side effects.

This case report details a 4-year-old girl with arginosuccinic-aciduria, showing neurological symptoms and weakened hair, but the mechanisms behind these issues remain uncertain.

This study synthesized and evaluated five 6-mercaptopurine derivatives for anticancer activity against three cancer cell lines, detailing the promising results of compound 1.

This study found that L-cystine, D-pantothenat, and miliacin can enhance the metabolic capacity and proliferation of human keratinocytes, with a combination of these additives potentially providing synergistic benefits in growth media.

This study found that human peptidylarginine deiminase type III is the predominant isoform in hair follicles and may modulate structural proteins during hair and hair follicle formation.

This technical report from the European Food Safety Authority responds to comments on its previous scientific opinion regarding a health claim about spermidine and hair growth, reporting no new experimental results.

In this study, finasteride was found to potentiate stress-induced disruption in sensory gating of rats by neutralizing the increase in allopregnanolone levels after acute stress.

This study found that four new progesterone derivatives reduced prostate weight in gonadectomized hamsters, suggesting potent in vivo antiandrogenic effects similar to finasteride.

This study found that pimozide, d-butaclamol, and pituitary pars intermedia grafts darken hair color in agouti C3H Avy mice, suggesting dopaminergic inhibition influences peptide-controlled hair color cycling.

This article reports that mutations in the PADI3 gene, affecting its activity or localization, cause uncombable hair syndrome and are linked to central centrifugal cicatricial alopecia, particularly among women of African ancestry.

This study suggests that the ANE syndrome mutation in yeast Nop4, analogous to human RBM28, disrupts protein folding and protein-protein interactions, contributing to ribosomal dysfunction.

In this study, the researchers report that a modified epimorphin-derived peptide shows potential for hair follicle regeneration, especially when used with 1% minoxidil in mice.

This study characterized the crystal structures and supramolecular architectures of new salts made from 2,4-diaminopyrimidine and different dicarboxylic acids, revealing subtle differences in crystal packing and hydrogen-bonding patterns, particularly influenced by sulfur atom interactions, through Hirshfeld analysis and enrichment ratios.

In this exploratory in vitro study, treatment with spermidine increased cell viability and altered gene expression in human epidermal keratinocytes, suggesting potential benefits to cellular health and function, though effects on mitochondrial markers were not significant.

This study found that inhibiting the enzyme 5α-reductase with finasteride counteracted stress-induced prepulse inhibition deficits in socially isolated rats by altering neuroactive steroid concentrations in the brain.

This study observed that Poria cocos polysaccharides and finasteride both reduced inflammation in chronic nonbacterial prostatitis in rats, but only Poria cocos polysaccharides reversed related changes in the gut microbiota.

This study identified novel isoforms of the PADI2 and PADI3 proteins, showing that PADI2β inhibits oligodendrocyte differentiation, possibly by opposing the effect of canonical PADI2, while PADI3β modulates the activity of PADI3α, suggesting new regulatory mechanisms of citrullination in tissue development.

This study reports that a 190,000 molecular weight protein, identified as trichohyalin, may play a matrix role in the development of inner root sheaths in hair follicles.