April 2023 in “The journal of investigative dermatology/Journal of investigative dermatology” This study found that the natural estrogen Estetrol (E4) may promote hair follicle growth and prevent miniaturization, suggesting its potential as a treatment for hair loss disorders.
April 2023 in “Journal of Investigative Dermatology” This study found that matrix progenitor cells in hair follicles move in a conveyor-belt-like fashion along the dermal papilla, changing their transcriptional states and lineage potential as they differentiate into inner hair follicle layers.
April 2023 in “Journal of Investigative Dermatology” In this study, a new emulsion containing CBD and ginger root extract significantly reduced symptoms of dry and eczema-prone skin, such as erythema and itching, in a clinical trial.
April 2023 in “Journal of Investigative Dermatology” This study found that longer disease duration in psoriasis patients was significantly associated with increased incidence of cerebral atrophy, suggesting a potential need for central nervous system screening in these patients.
April 2023 in “Journal of Investigative Dermatology” In this single-center study, small-volume tumescent liposuction resulted in significant reductions in waist and hip circumferences but did not show significant improvements in metabolic markers.
April 2023 in “The journal of investigative dermatology/Journal of investigative dermatology” This study identified distinct and diverse fibroblast populations in female scalp cells that lose their signature and identity with age, highlighting significant age-related changes, such as increased fibrosis, DNA damage, and senescence, which may affect scalp dermal support for healthy hair follicles.
April 2023 in “Journal of Investigative Dermatology” This study found that adipose stem cell exosome treatment may improve hair growth and scalp rejuvenation, outperforming minoxidil and showing promise in clinical trials for hair loss, including androgenic alopecia.
April 2023 in “Journal of Investigative Dermatology” This study found that mitochondrial dysfunction in the epidermis contributes to aging-related changes in hair follicles among mice, with aged mice showing reduced hair density and delayed regrowth, suggesting that maintaining mitochondrial function may help prevent age-related organ decline.
April 2023 in “Journal of Investigative Dermatology” This study found that the oral IRAK4-inhibitors BAY 1834845 and BAY 1830839 reduced skin inflammation and systemic inflammatory responses in healthy volunteers, showing similar pharmacodynamic effects to prednisolone when challenged with topical imiquimod and intravenous LPS.
April 2023 in “The journal of investigative dermatology/Journal of investigative dermatology” This study provides ex vivo proof-of-principle that low-intensity ultrasound may protect human hair follicles from paclitaxel-induced damage, potentially reducing chemotherapy-related alopecia.
April 2023 in “Journal of Investigative Dermatology” This study explored COVID-related chilblains using transcriptomics and found they showed a distinct interferon and JAK/STAT pathway activation, absent in vaccine-related chilblains, with inflammatory cell types varying over time.
April 2023 in “Journal of Investigative Dermatology” In this study, Aminoacridine, Abemaciclib, and the combination of Aminoacridine with Minoxidil showed potential for effective hair regeneration by activating Wnt/β-catenin signaling in animal experiments.
March 2023 in “JAAD case reports” In this study, researchers reported that conventional treatments for folliculitis decalvans, which include steroids and antibiotics, are often ineffective, with many patients experiencing frequent recurrences of this scarring scalp disorder.
March 2023 in “JAAD case reports” This article reviews the genetic foundations of keratins in maintaining epithelial tissue integrity and links specific keratin variants to diverse ichthyosis forms, without presenting new clinical findings.
November 2022 in “Journal of Investigative Dermatology” This study found that marine-derived collagen peptides slightly promoted hair matrix proliferation and prolonged hair growth phase in human hair follicles ex vivo, suggesting potential benefits for hair loss treatment.
November 2022 in “Journal of Investigative Dermatology” This study found that a lotion containing specific plant extracts significantly increased the number of anagen hairs and the anagen/telogen ratio in subjects with androgenetic alopecia after three months of use.
November 2022 in “Journal of Investigative Dermatology” This study found that stimulating the olfactory receptor OR2A4/7 with cyclohexyl salicylate promoted human hair growth and increased progeny of hair follicle epithelial stem cells in an ex vivo setting.
November 2022 in “The journal of investigative dermatology/Journal of investigative dermatology” This study suggests that varicella-zoster virus infection in skin cells may play a role in segmental vitiligo's progression and depigmentation.
November 2022 in “Journal of Investigative Dermatology” Among men with androgenetic alopecia, this study found that taking 5 mg of KX-826 twice daily significantly increased hair count compared to a placebo, with the treatment being well-tolerated and no serious adverse effects reported.
November 2022 in “The journal of investigative dermatology/Journal of investigative dermatology” This study generated a transcriptomic map of human hair follicles, identifying compartment-specific gene expression profiles that can aid in developing targeted therapies for hair follicle disorders.
November 2022 in “The journal of investigative dermatology/Journal of investigative dermatology” This study found that early pigment cell markers Sox10 and c-KIT, as well as DCT/TRP-2, were detectable in melanogenically-active melanocytes of the anagen bulb in human hair follicles.
November 2022 in “The journal of investigative dermatology/Journal of investigative dermatology” This study found that YAP1 localization and expression patterns in human skin xenografts resembled pathological conditions, suggesting that YAP1 may be a potential target for treating skin pathologies.
November 2022 in “Journal of Investigative Dermatology” This study found that Cyclosporin A may prolong the anagen phase of hair growth in cultured dermal papilla cells by decreasing TGF-β2 expression, similar to its mechanism in immunosuppression.
November 2022 in “The journal of investigative dermatology/Journal of investigative dermatology” This study found that hemoglobin α is upregulated in epidermal keratinocytes after UV exposure and may function as an antioxidant, particularly for hair follicle stem cells.
November 2022 in “Journal of Investigative Dermatology” This study observed that three-dimensional cultures of dermal papilla cells enhanced endothelial cell migration and angiogenesis in vitro, which may improve vascularization in tissue-engineered skin constructs.
November 2022 in “The journal of investigative dermatology/Journal of investigative dermatology” This study found that skin organoids derived from iPSCs with an HS-associated NCSTN mutation showed defects in hair follicle stem cell differentiation and increased expression of inflammatory proteins related to hidradenitis suppurativa.
November 2022 in “Journal of Investigative Dermatology” This study found that using a home-use LED mask with specific wavelengths improved signs of skin aging in both ex-vivo and clinical settings.
November 2022 in “Journal of Investigative Dermatology” This study observed that dandruff is linked to a weakened immunoprivilege in hair follicles, with reduced Langerhans cells and increased epidermal CD4+ and CD8+ T cell infiltration.
November 2022 in “Journal of Investigative Dermatology” This study found that non-balding dermal papilla cells emphasized extracellular matrix organization and reduced inflammation when cultured in 3D or with adipose-derived stem cells, unlike balding cells which maintained inflammatory pathways.
November 2022 in “Journal of Investigative Dermatology” This study found that short-term treatment with ROCKi significantly increased keratinocyte stem cell proliferation without affecting their stemness, suggesting a potential safe approach for improving in vitro keratinocyte cultures for clinical applications.