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This study found that melatonin-loaded nanoparticles improved antidepressant effects and HPA axis regulation in pinealectomized rats, compared to free melatonin, through controlled-release properties.

This study found that melatonin significantly improved metabolic and reproductive parameters in PCOS-induced rats, with effects similar to metformin.

In this study on male rats, parachlorophenylalanine treatment induced hypersexual behavior and hair loss linked to increased social interaction but had no effect on brain serotonin when testosterone was used instead.

This study found that melatonin, when administered to Wistar rats prior to and after radiation exposure, reduced oxidative stress markers and histopathological damage in skin tissue compared to radiation alone, suggesting it may effectively prevent and treat radiation-induced skin injury.

This review provides a comprehensive overview of melatonin's physiological roles, effects, and clinical implications, but it does not present new experimental findings.

This review details the expression and diverse functions of melatonin receptors in non-neural tissues and reports no new clinical findings, emphasizing their potential as therapeutic targets across various physiological and pathological processes.

This review discusses the cutaneous serotoninergic/melatoninergic system's potential role in skin function and resilience against environmental and internal stresses, but does not report new experimental findings.

This review discusses the protective and stress-buffering roles of melatonin in skin functions and structures but does not present new clinical findings.

This article discusses the potential role of melatonin in protecting skin against stress and maintaining homeostasis, based on its local synthesis and various protective functions, but presents no new clinical results.

This study found that melatonin exposure promoted hair follicle fiber growth in Cashmere goat cultures, potentially influencing pathways related to the microvascular system and extracellular matrix.

This review analyzes how androgens impact sexual desire and reproductive behaviors, emphasizing molecular interactions, but provides no new clinical results.

This study found that lower serum melatonin levels were associated with increased skin aging grades among individuals in Ulaanbaatar, suggesting melatonin loss may contribute to earlier skin aging.

In this study, higher DHA/omega-6 fatty acid ratios were linked to increased social impairment in individuals with autism, alongside lower antioxidant enzyme levels and higher markers of lipid peroxidation.

This review discusses post-SSRI sexual dysfunction and post-finasteride syndrome, highlighting unknowns about their true incidence and underlying causes, and reports no new clinical results.

This review examines the neuroendocrine mechanisms underlying seasonal changes in mammals and highlights areas needing further research, reporting no new experimental results.

This study found that maternal melatonin supplementation improved fur quality in Rex rabbit offspring by increasing hair follicle density and altering melatonin receptor gene expression in several organs.

This chapter reviews hyperadrenocorticism in ferrets, covering its causes, symptoms, diagnosis, and treatment options, but reports no new research findings.

This study found that exogenous melatonin improved cashmere fiber quality and yield in goats by enhancing antioxidant capacity and reducing pro-aging cytokine expression in secondary hair follicles.

In this study, maternal exposure to constant light significantly altered the neonatal skin structure in rabbits, associated with reduced maternal melatonin levels.

This review explores melatonin's role in hair follicle cycles and its molecular mechanisms that enhance antioxidant capacity and modulate gene expression, offering potential strategies to improve cashmere production and treating human alopecia, according to the authors.

In this study, altering the photoperiod in goats increased hormone concentrations and improved hair follicle development and skin antioxidant capacity, suggesting that short photoperiods may create favorable conditions for cashmere growth.

This study on rats found that adrenalectomy was associated with increased hair loss compared to sham adrenalectomy, where one adrenal was left intact.

This study developed a rat model for catamenial epilepsy, suggesting that neurosteroid withdrawal may increase seizure frequency and help test new treatments.

This study found that both rats and mice on iron-deficient diets developed symmetrical hair loss within two months.

This study developed a novel mouse model of catamenial epilepsy by manipulating neurosteroid levels and demonstrated that withdrawal increases seizure susceptibility, potentially linked to changes in GABAA receptor-subunit plasticity.

In this study, adrenalectomy in rats on a diet lacking certain vitamin B components reversed fur graying and enhanced hair growth.

This study found that blocking the hypothalamic-pituitary-gonadal axis in male rats reduced baroreflex dysfunction and inflammation caused by endotoxemia, highlighting potential therapeutic benefits.

This study suggests that female hairless rats aged about 8 weeks offer the most consistent and reliable response in tests evaluating epidermal ornithine decarboxylase activity.

This study observed that captive flying squirrels with partial alopecia experienced complete hair regrowth after their diet was changed from sunflower seeds and peanuts to mouse chow over 11 months.