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This article discusses the genetic hair disorder monilethrix, characterized by beaded, fragile hair due to defective keratin genes, and reports no effective treatment currently available; variability in severity was noted among affected siblings.

This study suggests that the cell membrane complex in hair cuticles contains hydrophilic regions with disulfide bonds allowing polymer uptake and hydrophobic lamella-like lipid layers.

This study found that applying a 1% sodium N-(dihydrolipoyl)-l-histidinate zinc complex lotion to the scalp did not prevent chemotherapy-induced alopecia in breast cancer patients, but it may aid recovery.

This study suggests that PGD2 may increase testosterone production in keratinocytes through oxidative stress pathways, with n-acetyl-cysteine blocking this effect.

This scoping review identifies various pharmacological agents and five key mechanistic strategies being studied in vivo to mitigate multi-organ toxicity caused by cytarabine, with apraglutide and N-acetylcysteine highlighted as promising candidates for clinical application.

In this study, 12-Chloracetyl-PPD showed anti-cancer activity by inhibiting cancer cell viability and inducing apoptosis through reactive oxygen species production without harming normal cells.

This study found that cooling combined with antioxidants can improve scalp cooling effectiveness in preventing chemotherapy-induced alopecia by maintaining hair follicle viability and function.

In this study, researchers found that cepharanthine significantly inhibited the growth of non-small cell lung cancer cells by inducing apoptosis through ROS generation and altering multiple signaling pathways, suggesting potential as a novel lung cancer treatment.

This report presents a case of an 18-year-old female-to-male transgender man experiencing hair loss and varied hair lengths over his temples, raising questions about the diagnosis as the patient exhibited no itching or rash.

In this study, L-methionine and L-serine application was observed to have the most significant effect on hair weight and root length, followed by acetyl L-methionine and L-serine, while glutathione inhibited growth.

This review summarized and classified 32 approved synthetic and natural-identical antioxidants, examining their regulatory status, safety, pharmacological properties, and effectiveness on human health, aiming to clarify their antioxidant actions and encourage further research in the field.

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.

In 2002, various skin reactions were reported due to different drugs, including allergies, hair loss, skin lesions, and other skin conditions.

Mink use L-methionine and L-cystine slightly better than natural amino acids for hair growth, but D-methionine is not effective.

This study demonstrated that dominant mutations in mouse gasdermin A3 disrupt mitochondrial oxidative stress regulation, suggesting a gain-of-function effect on epidermal differentiation.

This review discusses various environmental and chemical factors that contribute to hair shaft disorders, such as fractures, and highlights the potential roles of cysteine and glutamine in hair health, but reports no new results.

This review discusses dietary manipulation strategies in a mouse model of CBS deficiency and reports no new results; the authors emphasize the importance of understanding gene-diet interactions.

This study identified distinct gene expression programs in keratinocytes responsible for forming hard scales and soft interscale epidermis in chickens, revealing conserved differentiation genes similar to those in human skin.

In this study, periodic exposure to red light in aged mice led to increased histone acetylation and activated mitochondrial fatty acid oxidation, which collectively mitigated cellular aging by modulating metabolism, inflammation, and gene expression.

This review discusses the potential role of oxidative stress in hair graying and age-related alopecia, emphasizing the need for new strategies to counteract these effects, but reports no new results.

This review focuses on the roles of amino acids, peptides, and proteins in cosmetics, highlighting their importance in skin health and their potential for development in personal care products due to their unique properties and biocompatibility.

In this study, L-cysteine treated with the Trivedi Effect® showed significantly increased isotopic abundance ratios, which may enhance its stability and shelf-life.

This study found that keratin damage in mammals and birds can result from N-homocysteinylation, reducing keratin solubility and indicating significant protein modification through genetic or nutritional disruptions in homocysteine metabolism.

In this study, researchers examined juglone's potential as a restoring agent for hair keratin damaged by permanent or bleaching treatments, finding that juglone formed Michael adducts with cysteine residues, leading to a more regular hair surface as observed via IR spectroscopy and SEM analysis.

This study found that feeding mice a high-fat diet with fish oil leads to hair loss through a mechanism involving omega-3 fatty acids and TNF-α signaling, with epidermal fatty acid binding protein playing a key role.

In this study, reducing agents like ammonium thioglycolate, L-cysteine, and sodium sulfite in shampoo effectively decreased hair flyaway and frizz without causing damage, as no critical hair damage was observed in structural and tensile strength assessments.

This review discusses the roles of metabolism, reactive oxygen species, intracellular pH, and cell morphology in influencing cell fate decisions during stem cell differentiation but reports no new experimental results.

In this animal study, the ketogenic diet was associated with more severe biotin deficiency in biotin-deficient mice, suggesting that biotin supplementation is important when following this diet.

This study found that direct interactions between human dermal papilla cells and melanocytes under low oxygen conditions improved cell functions and could be important for hair regeneration efforts.

This study found that ethanolic asiasari radix extract may induce apoptosis in G361 melanoma cells through ROS-dependent regulation of p53, suggesting potential as a medicinal option for melanoma.