April 2026 in “Clinical Cosmetic and Investigational Dermatology” This study found that androgenetic alopecia involves fungal dysbiosis, with significant depletion of the commensal yeast Malassezia and enrichment of opportunistic microbes, affected by host factors and geography.
January 2026 in “International Journal of Rheumatic Diseases” This study explored the intersection of art and medicine, specifically examining the depiction of the malar rash associated with lupus in historical paintings. The authors suggest that this approach, known as iconodiagnosis, can enhance medical education and understanding of disease manifestations through visual arts.
October 2023 in “Facial Plastic Surgery” This review discusses combining follicular unit excision (FUE) and linear strip excision (LSE) donor harvesting methods to optimize graft yield while minimizing donor depletion, but provides no new clinical results.
46 citations
,
January 2020 in “Theranostics” This study demonstrated that OSA hydrogels enhanced the stability and retention of dermal papilla-derived extracellular vesicles, which significantly improved hair regeneration in both cultured human hair and a mouse depilation model.
26 citations
,
September 2012 in “Cell Reports” In this study, knockout of B-raf and C-raf genes in mice showed they are not needed for early melanocyte development, but are crucial for maintaining melanocyte stem cells, as evidenced by hair graying due to stem cell depletion.
13 citations
,
May 2022 in “Cell discovery” This study used single-cell RNA sequencing to create a detailed atlas of human scalp hair follicles and found that early-stage hair graying involves matrix hair progenitor depletion linked to P53 pathway activation.
1 citations
,
September 2023 in “Curēus” In this case study, a 55-year-old male with a history of hypospadias repair developed urinary complications due to urethral hair bezoars, and the researchers reported that transcutaneous ND:YAG laser epilation effectively removed urethral hair, preventing recurrence of such issues.
June 2025 in “Theranostics” This study found that exosomes derived from mesenchymal stem cells primed with rapamycin significantly enhanced hair regrowth, hair density, and hair follicle development in depilation-induced mice compared to controls, suggesting a potential therapeutic approach for hair loss.
April 2016 in “Journal of Investigative Dermatology” This study found that topical phenylephrine, an α1-AR agonist, significantly reduced hair shedding and increased epilation force threshold in women experiencing traction alopecia during cosmetic procedures.
This chapter reviews various treatments for hirsutism, including antiandrogens, finasteride, eflornithine, and epilation methods, but reports no new clinical results.
This chapter reviews surgical management techniques for leukotrichia in vitiligo and presents no new clinical findings; it highlights various grafting and epilation methods.
44 citations
,
September 2019 in “The EMBO Journal” This study found that lymphatic vessels in mice are important for hair follicle development and organization, as their depletion blocks hair growth.
36 citations
,
October 2008 in “European journal of paediatric neurology” This study found that pediatric patients on valproic acid may experience hair loss due to reduced zinc and biotinidase levels within the first 3 months, with zinc depletion continuing to contribute by the 6th month.
32 citations
,
January 2016 in “Development” This study introduced Scd3-Cre mice, which enabled sebocyte-specific manipulation, revealing that sebaceous lipid depletion impaired water repulsion, thermoregulation, and the ocular surface, resembling Meibomian gland dysfunction.
13 citations
,
January 2013 in “Molecular genetics and metabolism” This study reported that mice on a phenylalanine-deficient diet showed symptoms such as weight loss, gastric dilation, and thymic depletion, which echo human phenylalanine deficiency manifestations.
6 citations
,
April 2023 in “Indian Journal of Pure & Applied Biosciences” This study highlights the crucial role of medicinal plants in treating major public health illnesses and stresses the importance of their domestication and cultivation to prevent depletion due to human activities and unregulated collection.
2 citations
,
January 2012 in “Springer eBooks” This article reviews the advancements in hair restoration techniques and emphasizes the importance of experience, artistry, and dedication to achieving superior, undetectable results, but it does not report new clinical findings.
September 2026 in “Zenodo (CERN European Organization for Nuclear Research)” In this paper, the authors propose that a historical decline in dietary tin intake may contribute to cardiovascular issues and accelerate pattern hair loss by causing copper and zinc depletion, which impairs heart function and scalp circulation.
February 2026 in “International Journal of Molecular Sciences” In this study, Lrig1-positive stem cells in mouse hair follicles were found to be essential for sebaceous gland formation and maintenance, with their depletion causing a temporary loss of these glands and changes in cellular differentiation.
October 2025 in “Abstracts” This article discusses various hematologic issues in systemic lupus erythematosus, including anaemia and thrombocytopenia, and examines treatment approaches like B-cell depletion and complement inhibition, without reporting new clinical results.
April 2019 in “The journal of investigative dermatology/Journal of investigative dermatology” In this study, the researchers introduced a mutation in mice to mimic Olmsted syndrome and found that the mutation caused hair loss due to impaired keratinocyte differentiation and depletion of hair follicle stem cells.
This review clarifies that non-anaemic iron deficiency in non-pregnant premenopausal women often arises from menstrual iron losses and can cause symptoms like hair loss, while in post-menopausal women and adult men, iron deficiency anaemia frequently indicates chronic intestinal bleeding.
5 citations
,
February 2022 in “Frontiers in physiology” This review discusses the role of various cells outside the hair follicle in regulating melanocyte stem cells and hair graying, but reports no new clinical results.
1 citations
,
September 2023 in “The journal of investigative dermatology/Journal of investigative dermatology” This study found that stress-induced inactivation of the enzyme Dicer in melanocytes can cause premature hair greying by preventing proper melanocyte placement and melanin transfer in mice, suggesting the Dicer-miR92b-ItgaV pathway as an important link between stress and grey hair.
49 citations
,
July 2000 in “Journal of Histochemistry & Cytochemistry” This study found cell-specific variations in POMC mRNA and peptide expression in murine skin, suggesting that PC1 and PC2 convertases contribute to differential POMC processing.
182 citations
,
May 2003 in “Development” This study found that Myc activation in mouse epidermis impairs keratinocyte adhesion and motility by downregulating extracellular matrix and cytoskeleton proteins, affecting hair lineage differentiation.
242 citations
,
February 2016 in “Science” This research found that Foxc1 transcription factor and COL17A1 are critical in regulating quiescence and hair thinning in hair follicle stem cells, with aging-related DNA damage leading to hair loss.
148 citations
,
October 1997 in “Journal of Investigative Dermatology” TGF-β receptors are crucial for hair follicle development.
75 citations
,
October 2016 in “Genes & Development” This study found that Sonic Hedgehog secreted by hair follicle transit-amplifying cells is essential for dermal adipogenesis and hair follicle growth by acting on adipocyte precursors.
44 citations
,
April 2017 in “Genes & development” This study identified hair shaft progenitors in the matrix that regulate hair growth and pigmentation by creating a niche dependent on stem cell factor, implicating KROX20+ cells in these processes.