January 2026 in “Skin Appendage Disorders” The trichogram is a practical, non-invasive, and cost-effective tool for diagnosing female androgenetic alopecia.
January 2007 in “Journal of Inner Mongolia University” The research helps in creating genetically modified animals to study hair growth.
20 citations
,
May 2013 in “International Journal of Molecular Medicine” Researchers found a new gene variant linked to a rare bone disease, which doesn't always cause symptoms in carriers.
287 citations
,
July 2001 in “Journal of Cell Science” The study found 65 intermediate filament genes, including new keratins, and suggested updating keratin naming.
7 citations
,
January 2021 in “The journal of gene medicine” Certain genetic differences may affect how likely someone is to get COVID-19 and how severe it might be.
Hair test results can be misleading due to external contamination, so they shouldn't be used alone to assess long-term drug use.
21 citations
,
January 2000 in “Fetal Diagnosis and Therapy” Prenatal diagnosis of trichothiodystrophy is possible in the second trimester using fetal eyebrow biopsy, with sulfur content analysis being more reliable.
36 citations
,
January 2016 in “The journal of investigative dermatology/Journal of investigative dermatology” The document concludes that understanding genetic mutations in the PI3K-AKT-mTOR pathway can lead to better diagnosis and treatment for certain genetic skin disorders.
A machine-learning test using hair can help detect autism early in infants.
November 2022 in “Annals of Translational Medicine” Immune activities and specific genes are important in male pattern baldness.
February 2026 in “Pediatric Dermatology”
45 citations
,
July 2009 in “Journal of human genetics” A gene variation is linked to hair thickness in Asians.
August 2022 in “Metabolites” Different types of skin on mice have unique chemical profiles related to how they grow and react to stress.
33 citations
,
October 1996 in “Journal of Investigative Dermatology” Certain genes may influence hair loss differently in men and women.
January 2014 in “Pathology” Non-scarring hair loss can be diagnosed with two 4mm punch biopsies, one cut vertically and the other transversely.
July 2025 in “Journal of Investigative Dermatology” Three molecular subtypes of advanced skin T-cell lymphoma were identified, with potential biomarkers for predicting treatment response and disease progression.
77 citations
,
March 2000 in “Journal of Investigative Dermatology” The research identified six functional hair keratin genes and four pseudogenes, providing insights into hair formation and gene organization.
7 citations
,
January 2005 in “Dermatology” A new method for studying hair follicles is easier and more precise, useful for hair loss and cancer treatment research.
November 2025 in “Journal of Investigative Dermatology” A new genetic mutation causing Xeroderma Pigmentosum was found in an 8-year-old girl, affecting her DNA repair.
14 citations
,
January 1977 in “PubMed” The hair keratin variant is mostly found in Caucasians.
501 citations
,
October 2008 in “Psychoneuroendocrinology” Hair cortisol levels can show increased stress during late pregnancy but only for up to six months.
54 citations
,
September 2019 in “Journal of the European Academy of Dermatology and Venereology” Tofacitinib is somewhat effective for alopecia areata, but more research is needed on its safety and long-term effects.
29 citations
,
January 2009 in “International Journal of Trichology” Finasteride for hair loss may cause gynecomastia; doctors should inform patients.
15 citations
,
November 2015 in “Journal of Cosmetic Dermatology” Botanicals like green tea extract show potential for hair growth, but more research is needed.
15 citations
,
September 2013 in “Pharmaceutical Biology” Jujube fruit extract may reduce kidney damage from ibuprofen in rats.
10 citations
,
September 2020 in “Metabolites” Hair color and length affect metabolite profiles in hair, so they should be considered in hair analysis.
8 citations
,
August 2018 in “Drug testing and analysis” EtG levels in hair decrease significantly after one month of alcohol abstinence.
6 citations
,
July 2018 in “Scientific Reports” Methamphetamine affects gene expression in rat whisker follicles, with key genes linked to addiction.