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This review discusses the advantages and limitations of various hair loss evaluation methods but reports no new results; it emphasizes the importance of cautious interpretation for these diagnostic tools.

This article provides departmental contact information for Dr. Dirk M. Elston at the Geisinger Medical Center and reports no research findings.

This study defined menstrual phase-specific reference intervals for circulating androgen levels in young women, highlighting that anovulatory females showed higher androgen, LH, and FSH levels compared to ovulatory females.

This study found that four microRNAs, which were significantly upregulated in balding hair follicle papilla cells, could play a role in the development of male pattern baldness.

This study found that the PSEN1-P242LfsX11 mutation in hidradenitis suppurativa influences cytokine and chemokine expression in macrophages, potentially affecting inflammatory responses.

This study validated the differential stripping technique on hairless rat skin and found that the P-08–016 formulation delivered more finasteride to the epidermis and appendages compared to P-10–008.

This study found that treatment with mesenchymal stem cell extracellular vesicles enhanced hair growth in mice and stimulated dermal papilla cell activity and growth factor production in vitro.

Dermal exosomes with miR-218-5p boost hair growth by controlling β-catenin signaling.

This study reported that Trichoscan, a computer-assisted hair measurement system, was not supported as accurate for clinical trials due to errors in signal detection, despite its analysis speed.

In this study, fetal stem cells were identified in adult human hair follicles long after childbirth, indicating potential for autologous therapies due to their pluripotent characteristics.

This abstract lists affiliations and states no financial interests but provides no research findings to summarize.

This study describes a simple, noninvasive hair counting method used in a hair growth prevention trial, assessing its reliability and validity.

In this study, freezing gamma-irradiated amniotic fluid increased hair follicles and accelerated the transition to the anagen stage in rats, suggesting potential for treating hair loss safely and effectively.

PRP may help with hair loss and improve hair quality with few side effects, but more research is needed.

This review suggests that platelet-rich plasma therapy shows promise for androgenetic alopecia and may be effective for some alopecia areata and cicatricial alopecia cases, but more robust trials are needed.

This study found that using 3% hydrogen peroxide for surgical wound care during hair restoration surgery did not significantly impact the survival rate of hair grafts compared to normal saline.

This article discusses the structure of hair follicles and their significance in evaluating hair disorders, but it does not report any new research findings.

This study defines classification criteria for hair follicle dystrophy using a mouse model of chemotherapy-induced alopecia, providing tools for standardized hair damage assessment.

This paper discusses the role of Malassezia yeast and inflammation in dandruff and highlights the potential of anti-inflammatory antidandruff formulations to improve scalp conditions and hair cycle disturbances; it presents no new experimental results.

This article reviews various diagnostic tools for hair disorders, describing methods ranging from invasive to noninvasive, but reports no new research findings or clinical results.

This study reports that hair growth and shedding in healthy women show annual seasonal patterns, with the highest shedding in summer and a less pronounced peak in spring.

This meta-analysis reported that platelet-rich plasma injections for androgenetic alopecia may increase hair number and thickness locally, but further studies are needed to establish their overall effectiveness.

This study found that GAGS scores for acne were higher in younger women with PCOS and a lower BMI, but showed no association with levels of androgen hormones.

This analysis concluded that hair regrowth in male and female pattern hair loss treatments did not involve converting vellus hairs into terminal hairs, suggesting a reactivation of dormant non-vellus follicles instead.

Finasteride and baicalin in phospholipid vesicles effectively promote hair growth and increase follicle count.

This review highlights the challenges in screening for steroid 5 alpha-reductase inhibitors and discusses significant variability in the effectiveness of finasteride and dutasteride, calling for standardized testing methods to develop safer, more specific inhibitors from herbal preparations.

In this study, small molecule-loaded silk fibroin nanofiber scaffolds with chitosan achieved sustained release of GSK-3 inhibitor SB216763, leading to enhanced wound healing and hair follicle neogenesis in skin regeneration efforts.

This study found that thymus transplantation in athymic mice resulted in T-cell-driven hair follicle depigmentation and loss, without multiorgan autoimmune disease, highlighting mechanisms of tissue-specific tolerance.

This study observed that deleting PTEN in mouse facial motoneurons enhanced peripheral axon regeneration but also led to physiological changes and potential hyperplasia in older mice.

This study suggests that using trichotillometry to establish the normal range of shear strain for different hair types could inform diagnostic and treatment decisions for various hair conditions.