September 2023 in “Journal of Nutrition and Metabolism” This study found that the ashwagandha extracts ASH-Ext1 and ASH-Ext2 show different pharmacological activities in cell models due to their distinct withanolide proportions, highlighting the need for standardized extraction protocols to ensure consistent therapeutic efficacy.
This study found that TLR2 and its ligand CEP are crucial for maintaining hair follicle health and stimulating hair growth, with deficiencies observed in aging and obesity potentially reducing regeneration.
This study found that TLR2 in hair follicle stem cells is crucial for maintaining hair health and regeneration, and its decrease in aging and obesity may impair hair growth, suggesting that stimulation through its ligand carboxyethylpyrrole could offer new therapeutic avenues.
September 2023 in “Frontiers in cell and developmental biology” This study found that a catalytically active version of Vav2 significantly altered gene expression patterns in hair follicle stem cells in mice, with these changes varying over the animals' lifespans.
August 2023 in “bioRxiv (Cold Spring Harbor Laboratory)” This study found that TLR2 is crucial for maintaining hair follicle health and regeneration, and its stimulation by the metabolite CEP may promote hair growth, while decreases in TLR2 and CEP in aging and obesity may hinder hair growth.
August 2023 in “Cell Proliferation” This study observed that incorporating human follicle dermal papilla cells into fibrin microgels increased cell viability and the formation of hair follicle structures in in vitro skin cultures compared to traditional dermal papilla spheroids, suggesting a promising approach for hair follicle regeneration therapies.
July 2023 in “Journal of Microbiology and Biotechnology” This study found that oral administration of Terminalia bellirica enhanced hair growth in testosterone-suppressed conditions in both human cell and mouse models, outperforming finasteride, a current commercial hair loss treatment.
July 2023 in “Regenerative Therapy” This systematic review found an increased incidence of hair loss and telogen effluvium among COVID-19 patients and reported preliminary effectiveness of platelet-rich plasma, adipose-derived mesenchymal stem cells, and human follicle stem cells for treatment without major side effects.
This study found that lentivirus-mediated overexpression of Sonic hedgehog significantly increased hair follicle stem cell proliferation and promoted hair follicle regeneration, with higher effects in non-alopecia areas.
June 2023 in “Research Square (Research Square)” This study found that autophagy activation in hair follicle stem cells shifted their metabolism to glycolysis, which promoted hair growth by initiating the hair follicle cycle.
May 2023 in “Research Square (Research Square)” This study found that the natural product Shi-Bi-Man significantly promoted hair regeneration in cynomolgus monkeys, increasing hair follicle number and activation by boosting specific protein markers and interactions in Laminin-related pathways.
In this pilot study, researchers found that ex vivo treatment with topical melatonin reduced chemotherapy-induced apoptosis and DNA damage in hair follicle stem cells of human scalp cultures, suggesting melatonin's potential as a protective agent against taxane-induced permanent hair loss.
May 2023 in “Skin research and technology” This study found that WD-aptamer increased β-catenin expression and promoted human hair follicle dermal papilla cell proliferation by interfering with the CXXC5-Dvl1 interaction in the Wnt signaling pathway.
April 2023 in “Biomedical Journal of Scientific and Technical Research” In this study, researchers observed that Indian head cactus extract significantly increased the proliferation of human follicle dermal papilla cells and induced the expression of hair growth-related genes, suggesting its potential as a new therapy for promoting hair growth.
April 2023 in “Journal of Investigative Dermatology” This pilot study suggests that topical melatonin may protect hair follicle stem cells from paclitaxel-induced damage, potentially preventing chemotherapy-induced alopecia and enhancing the effects of scalp cooling caps.
April 2023 in “The journal of investigative dermatology/Journal of investigative dermatology” This study concluded that KLF4 is a crucial regulator of hair follicle stem cell quiescence and may work by interacting with multiple transcription factors to control related genes.
April 2023 in “The journal of investigative dermatology/Journal of investigative dermatology” This study found that DNA-damaged hair follicle stem cells in mouse models do not show typical senescent markers but are dynamically expelled to maintain tissue health and prevent hair loss.
April 2023 in “Journal of Investigative Dermatology” In this study, using a mouse model, researchers found that inducing senescence in hair follicle stem cells led to hair regeneration failure and sebaceous gland enlargement, akin to androgenetic alopecia features.
March 2023 in “Asian Journal of Beauty and Cosmetology” This study found that the herbal extract HX109 promoted hair growth in mice by increasing cell viability and enhancing hair regrowth, with the effects increasing as doses rose.
January 2023 in “Biocell” The study found that safflower extract may help protect human follicle dermal papilla cells from cisplatin-induced damage, suggesting its potential as an adjuvant in chemotherapy to mitigate hair follicle cell damage.
December 2022 in “Korean journal of medicinal crop science/Han-gug yagyong jagmul hag-hoeji” This study found that polysaccharide extracts from ginseng, green tea, shiitake, and aloe vera effectively protected human follicle dermal papilla and keratinocyte cells by promoting cell proliferation or inhibiting apoptosis, suggesting potential for these extracts as ingredients in cosmetics or pharmaceuticals to prevent hair loss.
July 2022 in “The journal of investigative dermatology/Journal of investigative dermatology” This study found that locally administering thymic stromal lymphopoietin (TSLP) promotes hair growth by stimulating hair follicle cell proliferation during both normal conditions and after skin injury in mice.
June 2022 in “Research Square (Research Square)” This study suggests that hair follicle mesenchymal stem cells may alleviate small intestinal ischaemia-reperfusion injury in rats by promoting angiogenesis, reducing apoptosis, and protecting intestinal mucosal function.
April 2022 in “Journal of Investigative Dermatology” Hair shaft miniaturization leads to hair follicle stem cell loss, suggesting Piezo1 as a potential treatment target.
January 2022 in “Journal of St. Marianna University” This study investigated how secretions from cultured human hair follicle-derived keratinocytes affect gene expression in human follicle dermal papilla cells to understand their signaling interactions.
January 2022 in “SSRN Electronic Journal” This study found that lncRNA RP11-818024.3 transfection promoted hair growth in AGA mice and increased cellular proliferation in vitro, potentially involving the FGF2 and PI3K-Akt pathways.
January 2022 in “Social Science Research Network” This study found that activating both PKM2 and Wnt/β-catenin signaling enhanced hair re-growth and HFSCs proliferation in mice, suggesting a potential treatment strategy for alopecia.
January 2022 in “Figshare” In this study, researchers found that dermal papilla cell exosomes can enhance hair follicle stem cell proliferation and reduce apoptosis through the Wnt3a/β-catenin signaling pathway, offering insights for potential hair problem treatments.
November 2021 in “Research Square (Research Square)” This study found that human hair follicle dermal papilla cells grown in a 3D model influenced hair growth and immune pathways more effectively than those grown in a 2D culture.
October 2021 in “Research Square (Research Square)” This study found that in hairpoor mice, disruptions in hair follicle stem cell quiescence and signaling pathways lead to disturbed hair cycles, which may help explain alopecia development in Marie-Unna Hypotrichosis patients.