338 citations
,
July 2009 in “Development” Sox2-positive cells determine specific hair follicle types in mammals.
150 citations
,
May 1993 in “The journal of cell biology/The Journal of cell biology” Mouse Notch is important for determining cell roles in hair follicles.
93 citations
,
July 2006 in “Journal of Investigative Dermatology” K25, K27, and K28 are found in all inner root sheath layers of hair, while K26 is only in the cuticle.
56 citations
,
January 1999 in “The Analyst” The method accurately measures certain steroids in human hair, showing different levels in males and females.
30 citations
,
July 2023 in “Clinical Chemistry and Laboratory Medicine (CCLM)” Cortisone in hair is a more reliable indicator of stress hormone exposure than cortisol.
22 citations
,
February 2002 in “Planta Medica” Compounds from Angelica koreana roots, especially osthenol, could be effective for treating conditions like prostate disease and hair loss.
39 citations
,
April 2007 in “Therapeutic Drug Monitoring” Finasteride affects urinary steroid profiles and can potentially hide steroid abuse in sports drug testing.
127 citations
,
January 2008 in “PloS one” Vitamin D receptor helps control hair growth and could be used to treat certain skin tumors.
52 citations
,
December 1984 in “Journal of the American Geriatrics Society” Mineral levels in hair and serum don't help diagnose Alzheimer's.
December 2025 in “Molecules” A new method effectively detects trace sex hormones in cosmetics, ensuring safety.
February 2011 in “Journal of Investigative Dermatology” New findings suggest targeting IL-23 could treat psoriasis, skin cells can adapt to new roles, direct conversion of skin cells to blood cells may aid cell therapy, removing certain tumor cells could boost cancer immunotherapy, and melanoma may have many tumorigenic cells, not just cancer stem cells.
31 citations
,
September 2012 in “Journal of biological chemistry/The Journal of biological chemistry” The right amount of retinoic acid is essential for normal hair growth and development.
61 citations
,
October 1996 in “Development” Hair growth can be stimulated by combining certain skin cells, which can rejuvenate old cells and cause them to specialize in hair follicle creation.
21 citations
,
January 2019 in “Lasers in Medical Science” Low-level laser therapy significantly increases hair density in adults with hair loss, with low-frequency treatment being more effective.
30 citations
,
February 2010 in “The journal of investigative dermatology/Journal of investigative dermatology” Plet-1 protein helps hair follicle cells move and stick to tissues.
18 citations
,
October 2021 in “Frontiers in Physiology” Lipocalin-Type Prostaglandin D2 Synthase (L-PGDS) is a protein that plays many roles in the body, including sleep regulation, pain management, food intake, and protection against harmful substances. It also affects fat metabolism, glucose intolerance, cell maturation, and is involved in various diseases like diabetes, cancer, and arthritis. It can influence sex organ development and embryonic cell differentiation, and its levels can be used as a diagnostic marker for certain conditions.
12 citations
,
March 2012 in “ATLA. Alternatives to laboratory animals” Hair follicles significantly affect the skin absorption of some drugs.
June 2025 in “Frontiers in Bioengineering and Biotechnology” Recombinant collagen with nicotinamide boosts hair growth and health.
March 2024 in “Clinical, cosmetic and investigational dermatology” Skin Radiance Collagen improved skin and hair health in adult females.
August 2020 in “Textile research journal” The model helps understand how wool fiber structure affects its strength and flexibility.
45 citations
,
March 2001 in “Journal of Investigative Dermatology” A new protein, mK6irs, is found in specific hair layers and may help understand hair growth and diseases.
3 citations
,
October 2021 in “PLoS ONE” Piperonylic acid speeds up wound healing by reducing inflammation and boosting collagen.
March 2026 in “Cosmetics” Type I collagen, elastin, keratin, ceramides, and melanin improve hair strength, growth, and health.
222 citations
,
January 2014 in “International journal of reproductive medicine” Insulin resistance and obesity are key factors in the development and worsening of polycystic ovary syndrome, and lifestyle changes are important for managing it.
124 citations
,
November 2000 in “The journal of investigative dermatology/Journal of investigative dermatology” PAD3 plays a key role in hair and skin protein structure and may be linked to skin diseases.
87 citations
,
July 2018 in “Nursing Clinics of North America” PCOS is a common hormonal disorder in women, marked by symptoms like hair growth and menstrual issues, and requires personalized treatment.
31 citations
,
April 2004 in “Journal of Investigative Dermatology” A new mouse gene, Keratin 17n, is mainly found in nail tissue and may explain why mice without Keratin 17 don't have nail issues.
12 citations
,
January 2006 in “Journal of Dermatological Treatment” Topical 1% sildenafil is not recommended for treating alopecia areata in children.
8 citations
,
January 2015 in “PubMed” Phyllanthus niruri extract may help treat hair loss by promoting hair growth and blocking a hair loss-related enzyme.
4 citations
,
December 2017 in “PubMed” Minoxidil may help treat hair loss by reducing the activity of a specific enzyme linked to baldness.