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This review discusses the potential health benefits of L-Cysteine, noting increased research interest but highlighting a lack of clinical trial data for consensus on its effectiveness.

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 article reviews the need for multicenter clinical trials to establish reference data for ultrasound screening protocols for Down syndrome and reports no new findings.

This study found that adding methionine to a low-protein diet improved wool production and feed efficiency in Angora rabbits by promoting hair follicle development through mechanisms involving IGF1, KAP, and versican signaling.

This study found that concurrent administration of cycloleucine with ethionine prevented the weakening of wool fibers in sheep, whereas reduced glutathione did not have the same effect.

This study found that a dietary supplement containing L-cystine, medicinal yeast, and pantothenic acid significantly improved hair growth in women with telogen effluvium over six months compared to placebo.

This study examined the structural and biochemical mechanisms of human lipocalin prostaglandin D synthase, detailing substrate and product binding processes at the catalytic site and suggesting potential for drug delivery targeting hydrophobic molecules.

This study observed that glycine inhibited root growth and stimulated root hair development in habanero pepper seedlings, with ethylene signaling suggested to mediate these effects.

This review summarizes the potential of N-acetyl-cysteine in managing diseases linked to redox imbalance, discussing its effects from cellular mechanisms to clinical applications, though further research is suggested for broader use.

This study found that wet cupping blood differs significantly from venous blood in metabolite profiles, implying distinct biochemical pathways may be involved.

This study found that supplementing Liaoning cashmere goats with HMBi increased cashmere length while decreasing its diameter, attributed to changes in Met-related metabolites and elevated expression of genes related to the Met cycle and cell differentiation pathways such as Wnt and MAPK.

In this study, supplementing low-protein diets with 0.75% methionine maintained growth performance, improved fur quality, enhanced nutrient utilization, and supported intestinal microbiota balance in blue foxes, with significant results on several biochemical parameters and nutrient digestibility observed.

This study reports on the biochemical characteristics of S100A3 protein in human hair cuticle, notably finding its N-terminal methionine is acetylated and has a slightly lower isoelectric point compared to the recombinant version.

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 observed that zinc deficiency in humans and mice was associated with diminished allergic contact dermatitis but increased severity and duration of irritant contact dermatitis.

This study identified 617 differentially expressed genes in cashmere goat hair follicles, which are involved in key biological processes and provide insights into hair follicle development.

This study found no statistically significant relationship between androgenic alopecia and the PON1 ML55 and QR192 genetic polymorphisms, despite a higher frequency of the PON 55 L allele in patients.

This study identified that the biosynthetic pathways for coumestans in Eclipta prostrata are derived from acetate and shikimate pathways, while phenylpropanoid biosynthesis is exclusively from the shikimate pathway.

In this study, PA-011, a traditional Chinese medicine extract, was shown to improve hair growth in alopecia areata model mice by reducing skin inflammation and altering skin microbiota, indicating its potential therapeutic role for this condition.

In this study, aqueous and aqueous-alcoholic extracts of Ajuga reptans showed promising hepatoprotective and wound-healing properties, with significant effects observed in experimental models, suggesting potential for development into official medicinal products pending further research.

This review discusses the potential of metabolic engineering to enable sustainable industrial-scale production of L-aspartate and its derivatives, detailing current microbial production progress, limiting factors, and future prospects with emerging technologies in synthetic biology.

In this preclinical study, PA-011 derived from Periplaneta americana showed significant hair regrowth effects in androgenetic alopecia mouse models by inhibiting inflammation and oxidative stress, activating hair follicle stem cell proliferation, and normalizing skin microbiota, suggesting promise as an AGA treatment.

Melatonin helps broccoli roots produce anti-cancer compounds by controlling nitric oxide and hydrogen peroxide levels.

This study suggests that reversible hypopigmentation in homocystinuric patients may result from tyrosinase inhibition by homocyst(e)ine, with in-vitro experiments showing copper sulfate reversing this inhibition.

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 D-peptide crosslinked MAP hydrogel accelerated material degradation in vivo but significantly enhanced skin regeneration, suggesting an adaptive immune response can drive regenerative healing even with rapid scaffold breakdown.

This review discusses various environmental pollutants and their potential role in promoting mitochondrial dysfunction, which may contribute to aging-related diseases, cancer, and other adverse health outcomes, but reports no new experimental results.

This review highlights the role of chronic stress, oxidative stress, and immune processes in the development of Hashimoto’s thyroiditis and polycystic ovary syndrome, emphasizing the potential of antioxidants in their treatment based on the existing literature.

In this study, a missense mutation in the MAP2 gene was found to be associated with reduced hair follicle density, leading to the hairless phenotype in pigs.

Metabolic disorders can cause hair structure defects and growth issues, but amino acid levels in hair remain normal.