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This study investigated the formation of a specific chemical crosslink in hair proteins and explored the role of transamidase enzymes in hair follicles.

This study suggests that trichohyalin is modified by peptidyl-arginine deiminase before being cross-linked by TGase 3, allowing the formation of rigid structures in hair follicle cells.

This case study reports that an infant with maple syrup urine disease developed acrodermatitis dysmetabolica due to low isoleucine levels, and increasing the isoleucine dose improved the condition.

The lotion helps manage mild to moderate hair loss.

This article discusses the functions of the enzyme 17beta-HSD10, including its role in steroid metabolism and potential links to Alzheimer's disease, but reports no new experimental findings.

This study found that a food supplement improved skin moisturization, elasticity, and thickness, reduced telogen hair density, and enhanced nail status in women with mild-to-moderate aging signs after 84 days.

This study discusses zinc's vital role in skin cell growth and how its deficiency can lead to acrodermatitis enteropathica, marked by symptoms like alopecia and dermatitis. It notes that similar symptoms appear in people with certain metabolic conditions, referred to as acrodermatitis dysmetabolica.

In this study, researchers used in silico mutagenesis to identify key calcium-binding sites influencing the stability of Rand protease from Bacillus subtilis, potentially enhancing its application in industries like leather dehairing by improving stability and eliminating the need for additional metal ions during the process.

High temperatures and certain chemicals can significantly change the amino acid content in human hair.

This study found that enzymatic conversion of Arg-51 in S100A3 protein to citrulline promotes homotetramer assembly, potentially increasing Ca²⁺ binding required for hair cuticular barrier formation.

This study found that ACOD1 deficiency in dermal papilla cells promotes mitochondrial dysfunction and contributes to cellular senescence in androgenetic alopecia, suggesting ACOD1 as a potential therapeutic target and 4-octyl itaconate as a promising treatment option for AGA.

This study found that early diagnosis using gas chromatography/mass spectrometry and appropriate long-term treatment are crucial for improving outcomes in patients with methylmalonic acidemia.

In this study, D6D knockout mice showed severe deficiency in AA and DHA, leading to unexpected effects on skin health, fertility, and immune cell development.

This study analyzes contemporary theories and practices to understand key factors influencing the development of the examined phenomenon, proposing trends and practical applications for researchers and practitioners, while acknowledging study limitations and suggesting future research directions.

This study found that oxidative treatment with peracetic acid dissociates some disulfide bonds in human hair fibers while maintaining the crystalline structure, suggesting different mechanisms stabilize different regions of intermediate filaments.

This study examined finasteride degradation under stress conditions, identifying three unique degradation products in acidic environments, providing insights into impurity profiling and quality control for finasteride formulations.

In this study, Rahim et al. found that keratinocyte differentiation requires changes in polyamine ratios mediated by AMD1, suggesting that targeting polyamine availability could be useful for treating hyperproliferative skin disorders.

This study found that the dehydroepiandrosterone hydroxylating enzyme system in hair follicles is similar to the liver monooxygenase system, sharing characteristics such as inhibition by carbon monoxide and dependency on NADPH.

This study observed that a low-protein, arginine-supplemented diet improved the abnormal hair appearance in untreated patients with argininosuccinic aciduria.

This study found that permanent wave treatment accelerates hair degradation after protease exposure, showing significant morphological differences compared to untreated hair and linked to damage from Alpha-helical region denaturation.

This study found that using an aqueous solution of AMPD in hair bleach reduced both hair damage and odor compared to ammonium hydroxide.

This study found that microbial transformation of dihydrotestosterone with two types of fungi produced eight metabolites, among which metabolites 5–7 were significant inhibitors of butyrylcholinesterase, suggesting potential in Alzheimer's disease management.

This article reviews the regulation and roles of spermidine/spermine-N(1)-acetyltransferase (SSAT) in polyamine metabolism and its potential as a target in cancer and other diseases, without reporting new experimental results.

This study found that a peptide treatment using Protein disulphide isomerase improved the mechanical and thermal properties of over-bleached hair by promoting deeper peptide penetration and attachment.

This study found that prolonged administration of DHEA improved long-term memory and brain activity balance in old rhesus macaques, with effects like increased motor activity and restored hair lasting a year.

This study identified that a deficiency in the palmitoyl transferase enzyme, due to a mutation in the Zdhhc13 gene, led to severe physiological abnormalities in mice, including skin, bone, and systemic amyloid issues.

This study found that homocysteine-keratin accumulation in human hair increases towards the tips, linked to copper/iron-catalyzed demethylation of methionine, and may contribute to keratin damage.

This study demonstrated that a novel synthetic amyloid template accelerates the deposition of insulin monomers into amyloid fibrils without a lag time, potentially aiding in vitro screening of amyloid deposition inhibitors.

This study found that the alkaline degradation process of hair keratin using nucleophilic reagents led to different proportions of reaction products compared to wool, particularly more lanthionine and lysinoalanine residues.

This study found that the tetrazolium salt INT is the most effective for revealing dehydrogenase activity and certain histological structures in sheep and other mammals' skin.