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This review discusses various types of stem cells used in regenerative medicine, including adult stem cells and induced pluripotent stem cells (iPSCs), and evaluates them based on their embryonic tissue origins to explore new therapeutic approaches.

This study highlights that while hair follicle cycling is primarily influenced by growth factors like IGF-1 and Wnt signals, the role of cytokines in normal human hair growth and cycling is less understood.

This review compiles EV proteomics data and reports that while MSC-derived EVs show promise in skin therapeutics, variability in protein cargo highlights the need for standardized methodologies in understanding process impacts.

This review summarizes recent insights into the developmental origin and formation of tissue stem cells across various organs, reporting no new experimental results.

This study proposes that intranasal exposure to PTx and autoantigen in an animal model can trigger autoimmune disease, supporting the idea that subclinical nasal colonization by BP may cause alopecia areata.

This study found that an anti-atopic lotion containing fucoidan helped heal skin damage in hairless mice with atopic dermatitis by reducing skin thickness and modulating immune responses.

This review explores the complex interactions between hair follicle stem cells and surrounding structures that are essential for understanding hair regeneration, reporting no new experimental results.

The researchers reported that several m6A-related genes, particularly IGF2BP3, were differentially expressed in keloid tissue compared to normal skin, indicating potential targets for understanding keloid pathogenesis and treatment.

This review discusses the role of astrotactins in development and their genetic mutations' links to a variety of human diseases, but reports no new clinical results.

This review highlights the potential of drug-loaded extracellular vesicles as a promising drug delivery platform but notes that clinical translation faces challenges due to variability in methods and the need for standardization and safety evaluation.

This review discusses the expression patterns and biochemical roles of Msx and Dlx genes during development but does not present new research findings.

This study found that while both natural and bioengineered salivary glands showed similar protein concentrations in response to taste stimulation, their protein compositions and amylase concentrations differed, which may affect nerve signal balance.

This review discusses hypopituitarism's bidirectional relationship with COVID-19 due to metabolic comorbidities and pituitary risks, but it reports no new clinical results.

The document concludes that accurate diagnosis of male and female gonadal disorders is crucial for effective treatment and better patient outcomes.

In this animal study, researchers found that finasteride may offer neuroprotective benefits as a post-ischemic treatment for strokes in aged male rats, suggesting its potential as a therapeutic agent in this context.

This study found that exogenous glutamic acid can promote hair growth and keratinocyte proliferation, suggesting a novel signalling pathway in the skin.

This article reviews symptoms of post viral fatigue syndrome and long COVID, detailing various persistent symptoms, but reports no new clinical results.

In this study, Meis1 was found to regulate epidermal homeostasis and act as a proto-oncogenic factor in skin tissues, with differences in expression patterns between normal and tumor cells.

This chapter discusses the role of hormones in regulating reproductive biology and outlines how the endocrine system, particularly the brain and pituitary gland, controls these hormonal processes.

This study found that normal murine hair follicles are direct targets for melatonin bioregulation, expressing receptors that are regulated in a hair cycle-dependent manner, influencing keratinocyte apoptosis.

This review examines regulatory mechanisms of quiescent stem cells in tissue homeostasis, drawing on observations from the intestine and other self-renewing tissues, without presenting new data.

In this study, researchers examined androgen receptor activity in the adult mouse brain and found specific expression in key brain areas, which could inform understanding of cognitive side effects in humans undergoing androgen deprivation therapy for prostate cancer.

In this study, 17β-estradiol increased VEGF production in differentiated THP-1 cells, while dihydrotestosterone counteracted this effect by modulating adenylate cyclase activity.

This study suggests that inhibitors of steroidogenic enzymes may have therapeutic potential for certain behavioral disorders linked to dopaminergic hyperfunction, despite concerns about their endocrine impacts.

The document concludes that sex hormones are crucial for mammalian reproduction, health, and behavior, and require more research for therapeutic use.

In this study, transplantation of hair follicle stem cells and nerve growth factor-modified stem cells significantly reduced amyloid deposition and tau hyperphosphorylation in an Alzheimer's disease rat model, suggesting potential as a treatment option.

This study outlines a multidisciplinary approach to investigate primary amenorrhea, emphasizing the necessity to consider medical history, physical examination, and potential hormonal or anatomical causes, and recommends early referral in cases of chromosomal abnormalities or persistent amenorrhea following the development of secondary sexual characteristics.

This study found that mice lacking the type 3 IP(3) receptor in their hair follicles experienced repetitive hair loss and regrowth, indicating disrupted hair-cycle regulation potentially linked to specific signaling pathways.

This study found that neural crest-derived hair follicle cells in mice can differentiate into osteoblast-like cells, suggesting a potential application for bone regenerative therapies.

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