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This forum article in BMC Biology discusses evolving views on the concept of the stem cell niche, highlighting varied mechanisms and the need for better understanding of the niche's roles and functions.

This essay discusses the establishment, maintenance, and role of skin stem cells in tissue homeostasis, wound repair, and their relation to skin cancer, without reporting new experimental findings.

This study found that silencing clock genes BMAL1 or PER1 in human hair follicles increased melanin content and melanocyte activity, suggesting these genes influence pigmentation.

This study found that epidermal and fibroblast growth factors increased proliferation of human hair bulb papilla cells and root sheath fibroblasts in vitro, while hydrocortisone decreased it and minoxidil had no effect.

This study found that permanent alopecia can occur after certain chemotherapy treatments and presents as nonscarring hair loss similar to androgenetic alopecia, with specific histological features that could be misdiagnosed without proper clinicopathological correlation.

Research on epidermal stem cells has advanced significantly, showing promise for improved clinical therapies.

This study found that impaired autophagy plays a role in sonic hedgehog pathway-induced endometrial fibrosis, suggesting it as a potential target for treating intrauterine adhesion.

This proposal reviews current knowledge and suggests actions for managing chemotherapy‐induced alopecia but reports no new clinical results, highlighting the need for evidence‐based guidelines.

This report describes a paraneoplastic alopecia in four cats associated with internal malignancy, confirming previous findings of a syndrome linking ventral alopecia and metastatic carcinomas.

This article reviews the classification, diagnosis, and management of hair disorders, emphasizing the role of trichoscopy and early diagnosis for effective treatment but reports no new clinical findings.

In a 24-week randomized trial, this study found that the RAMACAP laser helmet significantly increased hair density and diameter in androgenetic alopecia patients compared to a sham device, although limitations included a small sample size and potential issues with the control used.

This source reports that scalp cooling is currently the only safe and FDA-cleared method to potentially reduce chemotherapy-induced hair loss, with about a 50% chance of maintaining sufficient hair to avoid needing a wig.

This review discusses the role of reactive oxygen species in regulating oscillating apoplastic pH gradients and growth in plant root hairs and pollen tubes, reporting no new experimental results.

The study observed that finasteride reduced fertility in male Sprague-Dawley rats by impairing the formation of copulatory plugs, an effect considered specific to rats and not applicable to species without this reproductive feature.

This study introduces a new intracavity frequency modulation technique for tunable picosecond optical parametric oscillators, enhancing chemical contrast in coherent Raman imaging by allowing real-time subtraction of background signals.

In this study, researchers found that alkylating chemotherapy causes hair follicle stem cells to lose their regenerative ability by initially triggering proliferation followed by apoptosis, leading to permanent regeneration loss.

This study found that pharmacological inhibition of sex steroid synthesis impacts pathogenic processes in traumatic brain injury in a sex-specific manner, with distinct effects of letrozole and finasteride on molecular and neurological outcomes.

This review discusses the regulation and dynamics of the Wnt/β-catenin signaling pathway in development, pluripotency, and cancer, highlighting potential mechanisms and future research directions, but reports no new results.

This study found that in Chinese women with PCOS, pretreatment with ethinylestradiol/cyproterone acetate was associated with a lower risk of gestational diabetes, pregnancy-induced hypertension, and premature delivery compared to those without pretreatment.

This review discusses the implications of deterministic chaos in pathology, emphasizing its potential impact on predicting biological behavior of lesions, and reports no new experimental results.

In this review, the authors discuss how understanding and co-regulating multiple signaling pathways could lead to effective regeneration of functional hair cells, highlighting current achievements and future approaches such as small molecule drugs and gene therapy for treating sensorineural hearing loss.

This study found that low-dose oral minoxidil 5 mg daily significantly increased hair growth in men with androgenetic alopecia over 24 weeks, with increased hair count and vertex area improvement, though most experienced hypertrichosis and some had pedal edema.

This study found that the LH response to nafarelin effectively distinguished gonadotropin deficiency from constitutional delay of puberty, performing comparably to the sleep test and offering certain advantages.

This article reviews the interaction between sex hormone pathways and morphogenesis-related signaling in epithelial organ development, using a chicken model to propose testable hypotheses, but reports no new clinical results.

This review proposes a new classification for telogen effluvium, identifying three pathogenetic types with a common feature of profuse hair shedding, but reports no new clinical results.

This study found that the MXD/HP-β-CD GEL formulation promoted greater hair growth and improved gene expression related to hair growth in male rats compared to MXD solution or control groups.

This article reviews alopecia areata incognita, a rare condition mostly seen in young women, and discusses its similarities and differences with telogen effluvium; however, it reports no new clinical findings.

This review discusses the various potential causes of hair loss in patients with inflammatory bowel disease, including telogen effluvium from disease flares, but provides no prevalence data; the authors outline a practical assessment and management approach.

This study found that higher levels of the protein Flii were associated with enhanced hair follicle regeneration and longer hair fibers in a mouse model.

This study found that conditioned media from dental pulp stem cells stimulated significantly faster hair growth in mice, suggesting potential as a treatment for alopecia.