October 2024 in “BMC Genomics” This study examined the cytodifferentiation stage of hair follicle development in cashmere goats, identifying nine cell populations and key regulatory pathways, including transcription factors and keratin genes, that may influence fiber quality and inform breeding strategies.
This report describes a patient with X-linked hypohidrotic ectodermal dysplasia who lacked the usual hair growth issues, highlighting the challenge of diagnosing this condition due to atypical presentations and underscoring the need for awareness to improve management and future planning.
September 2024 in “Journal of Medicine and Life” In this study, researchers identified a recurrent nonsense mutation, c.409C>T (p.Arg137*), in the COL7A1 gene through whole exome sequencing in a family with autosomal recessive dystrophic epidermolysis bullosa, demonstrating the importance of this method for diagnosing genetically complex conditions.
August 2024 in “Journal of Animal Science and Technology” This study identified specific keratin-associated protein genes that are highly expressed in different varieties and sexes of Angora goats, providing insights for improving mohair development through targeted breeding strategies.
July 2024 in “British journal of dermatology/British journal of dermatology, Supplement” This study identified a new pathogenic variant, c.1081G>T; p.(Glu361*), in the KRT31 gene as a cause of autosomal-dominant monilethrix, highlighting the role of hair keratin proteins in hair and nail tissue disorders.
July 2024 in “bioRxiv (Cold Spring Harbor Laboratory)” In this study, researchers observed that spontaneously mutated mice with a hair loss phenotype exhibited significant differential expression of genes related to keratinization and hair follicle formation, suggesting these mice could model human alopecia for future research and treatment development.
May 2024 in “Cell proliferation” This study found that melatonin supplementation significantly promoted hair regeneration in a hair depilation mouse model by up-regulating the Wnt/β-catenin signaling pathway in dermal papillae and hair follicle stem cells, suggesting potential implications for human hair loss treatments.
April 2024 in “The journal of investigative dermatology/Journal of investigative dermatology” In this mouse model study, researchers found that deleting the ASH2L gene in epidermal progenitor cells led to thinner epidermal layers, delayed hair follicle development, and reduced epidermal stem cell pools, with alterations in genes related to hair follicle development and the Notch signaling pathway.
This study found that the transcription factor Meis2 regulates the maturation and innervation of sensory neurons in mice, affecting their response to light touch.
January 2024 in “Journal of lipid research” In this study, finasteride was found to reduce cholesterol levels and delay atherosclerosis in LDL receptor-deficient mice, and men using finasteride reported lower cholesterol levels, suggesting potential cardiovascular benefits by improving lipid profiles.
January 2024 in “Theranostics” This study found that HDAC6 plays a crucial role in regulating primordial follicle activation, with its overexpression delaying activation and preserving fertility by reducing NGF levels.
January 2024 in “Arquivo Brasileiro de Medicina Veterinária e Zootecnia/Arquivo brasileiro de medicina veterinária e zootecnia” This study reports that treating a feline with progressive pruritus, alopecia, and FIV infection with imidacloprid and moxidectin resulted in remission of clinical signs and elimination of Demodex cati mites, as confirmed by parasitological examination and genetic sequencing.
December 2023 in “Animals” In this study, researchers analyzed miRNA and gene expression in the hair follicles of FMD during different hair cycle stages, identifying differential expression patterns and key pathways involved in hair follicle development and growth.
November 2023 in “Journal of animal science/Journal of animal science ... and ASAS reference compendium” This study investigated differences in gene expression in the mammary glands of SLICK and wild-type Holstein cattle, finding limited differences overall but identifying enriched pathways related to arachidonic acid metabolism and oxytocin production, which merit further exploration.
November 2023 in “Journal of Investigative Dermatology” This study used advanced single-cell RNA and chromatin sequencing to investigate differences in peripheral blood cells between mild and severe alopecia areata patients, uncovering shared transcription factor motifs that may explain disease severity and open avenues for future research on therapeutic targets.
November 2023 in “The journal of investigative dermatology/Journal of investigative dermatology” In this study, mice lacking the Mcpip1 gene in their myeloid cells did not develop SCC-like tumors but instead showed increased melanocyte activity and hair loss, indicating a distinct role for myeloid Mcpip1 in skin cancer development compared to keratinocyte Mcpip1.
September 2023 in “Frontiers in Medicine” This study observed that in the bald scalps of male patients with androgenetic alopecia, there was a significant downregulation of the PPAR signaling pathway, suggesting reduced adipogenesis potentially influencing hair cycling processes.
September 2023 in “bioRxiv (Cold Spring Harbor Laboratory)” In this study, FOL-026, a peptide based on osteopontin, was shown to promote angiogenesis and stimulate vascular cell proliferation and migration through neuropilin-1, similar to VEGF, suggesting potential therapeutic applications in vascular repair and angiogenesis-related conditions.
September 2023 in “Research Square (Research Square)” This study found that TNC + fibroblasts are crucial in neuro-immune interactions in various skin diseases, particularly inflammation and tumors, by engaging extensively with immune cells and overexpressing inflammatory genes, suggesting their significant role in skin abnormalities.
August 2023 in “Scientific reports” In this study, researchers differentiated human induced pluripotent stem cells into dermal papilla-like cells and observed gene expression dynamics during five stages of dermal differentiation, demonstrating the potential of these cells to interact with epidermal cells in functional assays.
August 2023 in “Journal of Investigative Dermatology” Skin organoids can regenerate hair by forming specific cell units with certain signals.
June 2023 in “Frontiers in Genetics” This study suggests that the curly hair phenotype in Mangalitza pigs may involve complex gene interactions related to calcium signaling and lipid metabolism, rather than changes in TRPM2 or CYP4F3 expression.
Ashwagandha-derived nanoparticles can promote human hair growth.
April 2023 in “The journal of investigative dermatology/Journal of investigative dermatology” This study reported that in mouse models, deletion of EGFR resulted in stem cell hyper-proliferation followed by apoptosis, leading to scarring alopecia, and implicated EGFR's role in maintaining hair follicle quiescence and immune privilege during inflammation.
April 2023 in “The journal of investigative dermatology/Journal of investigative dermatology” This study suggests that Elf5 plays a crucial role in regulating stem cell processes involved in skin and hair follicle development and regeneration, impacting cell proliferation and differentiation.
April 2023 in “The journal of investigative dermatology/Journal of investigative dermatology” In this study, researchers found that the loss of SETDB1 in epidermal keratinocytes led to altered chromatin states, increased ERV expression, and activation of immune responses, while inhibiting these effects with certain antiviral drugs reduced skin inflammation and hair loss in a mouse model.
April 2023 in “The journal of investigative dermatology/Journal of investigative dermatology” This study found that TLR3 activation in human keratinocytes enhances exosome biosynthesis and expression of hair follicle stem cell markers, suggesting a potential mechanism for tissue regeneration.
April 2023 in “Journal of Investigative Dermatology” This study found that sebaceous glands can regenerate after PPARg deletion in adult skin, relying on the hair cycle and FGFR signaling.
April 2023 in “Journal of Investigative Dermatology” In this study, researchers observed distinct aging signatures in mouse keratinocytes, with increased expression in older mice, and noted relevant pathway changes that were also evident in human skin, suggesting potential insights into intrinsic skin aging.
April 2023 in “The journal of investigative dermatology/Journal of investigative dermatology” This study found that HPV8-induced actinic keratoses may mechanistically involve Lrig1+ hair follicle keratinocyte stem cells, with the E6 gene promoting downstream STAT3 activity in a mouse model.