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This study reported that tryptanthrin, a compound found in indigo naturalis, effectively suppresses non-melanoma skin cancer in mice by reducing inflammation, inhibiting cell proliferation, and blocking specific signaling pathways associated with tumor growth.

This study observed that tryptophan levels in human hair are higher in males than females, increase with age, and vary with hair color, being highest in grey and white hair.

The authors concluded that newly synthesized N-acyl-L-tryptophanyl-isoleucine amides showed high anxiolytic activity in animal models, comparable to diazepam, through interaction with the TSPO receptor.

This study found that tryptophan fluorescence in natural white hair is significantly weaker than in other unpigmented keratin fibers, possibly due to greater environmental UV exposure or unknown chemical interactions.

This review highlights phytochemicals, particularly flavonoids and phenolics, as potential supportive treatments for SARS-CoV-2 by interfering with viral proteins and providing anti-inflammatory effects; it suggests a foundation for future therapeutic and vaccine development efforts.

This study provides evidence that human skin contains genes and enzymes necessary for producing serotonin and melatonin.

This study reports the development of a novel protocol to purify human TRPV3 ion channels, revealing functional properties and differences in ligand interactions, enabling further structural and functional research.

This study found that fractions of Tridax procumbens extract demonstrated significant antioxidant activity, comparable to standard ascorbic acid, in laboratory tests.

This study found that ethanol and petroleum ether extracts of Tridax procumbens roots demonstrated significant antibacterial activity against various bacterial strains compared to benzene extracts.

This study evaluated the phytochemical properties and in-vitro anti-fungal activity of Tridax procumbens but reports no new clinical results.

This study identified a new enzyme, skin l‐tryptophan‐2,3‐dioxygenase, that may play a role in rat hair growth regulation, showing increased activity during peak hair growth periods.

In this study, the ethanol extract of Tridax procumbens leaves exhibited antimicrobial activity against both Gram-positive and Gram-negative bacteria, with specific active compounds identified through GC-MS analysis that may contribute to its therapeutic potential.

This study found that a single dose of TRP significantly reduced the number of UV-B-induced actinic keratosis lesions in a mouse model and was associated with improved skin histology and minimal side effects.

This preliminary study suggests that baseline central serotonin turnover, indicated by CSF 5-HIAA levels, may influence treatment response to serotonin re-uptake inhibitors in women with trichotillomania.

This study found that a specific VDR amino acid substitution in children with hereditary vitamin D-resistant rickets disrupts ligand binding and gene activation but does not impair hair follicle development.

This study found that mouse skin can produce and metabolize serotonin and N-acetylserotonin, with activity influenced by location, physiological skin status, cell type, and mouse strain.

This study found that TRM21 acts as a positive regulator of flavonoid biosynthesis at the translational level in Arabidopsis, leading to changes in root hair growth and a decrease in flavonoid content when TRM21 is mutated.

This study explored non-invasive methods for monitoring low molecular weight biomarkers on the skin's surface, concluding that certain amino acid ratios, such as Phe/Trp, could serve as potential indicators of skin inflammation and cancer.

This study found that isotretinoin, a drug commonly used for acne, inhibits polyamine transport in Trypanosoma cruzi, leading to trypanocidal effects, and suggests its potential as a treatment for Chagas disease without affecting mammalian cell viability.

This review outlines the phytochemical composition and pharmacological potential of Tridax procumbens, a plant traditionally used in various regions for its purported medical benefits, including antioxidant, antimicrobial, and anti-inflammatory effects, among others.

In this study, the administration of indole-based compounds, particularly L-Tryptophan and Tryptophol, to a PCOS-induced rat model resulted in an increased number of healthy ovarian follicles and a reduction in ovarian cysts compared to untreated rats, suggesting potential therapeutic efficacy.

This review discusses the traditional uses of Tridax procumbens for wound healing, antifungal, and antibacterial purposes, but reports no clinical findings.

This article reviews the traditional uses and documented properties of Tridax procumbens in medicine but reports no original research findings, emphasizing its potential therapeutic applications.

This study reports that both aqueous and methanolic extracts of Tridax procumbens flowers demonstrated antibacterial activity against selected bacteria, indicating potential as antibacterial agents.

This review discusses the traditional medicinal uses of Tridax procumbens, attributing its therapeutic properties to various active phytochemicals, but reports no new clinical findings.

In this report, an 18-year-old female with trichotillomania was successfully treated using the glutamate modulator n-acetylcysteine.

This study provides detailed macro and microscopical observations of Tridax procumbens Linn. leaf, which could aid in its identification.

In this in vitro study, extracts from Tridax procumbens demonstrated potential antioxidant and anticancer activity against various human cancer cell lines, with notable efficacy in specific fractions.

This study found that ethanolic, aqueous, and hydroethanolic extracts of Tridax procumbens inhibited mitosis and caused mutagenic effects on cell division in Allium cepa root meristematic cells.