19 citations
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July 1964 in “PubMed” Hair follicle cells become four types: medulla, cortex, cuticle, and inner root sheath.
8 citations
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January 2015 in “Genetics and molecular research” Researchers found four key proteins that affect the development of a specific hair type in Yangtze River Delta white goats.
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December 2021 in “Journal of Infection” One in four people still had symptoms like weight loss, hair loss, and fatigue 12-14 weeks after recovering from COVID-19.
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January 1988 Only two of the four keratin genes are expressed in wool fibers.
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May 2023 in “Precision clinical medicine” Researchers found four genes that could help diagnose severe alopecia areata early.
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November 2017 in “Biotechnology Letters” Researchers found four natural compounds that can change DHT levels in prostate cancer cells.
1 citations
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April 2024 in “Acta Biochimica et Biophysica Sinica” The study identifies four distinct zones in the fetal vaginal epithelium, enhancing understanding for potential applications in women's health.
January 2022 in “European journal of anatomy” A man had four testicles, two of which were outside the scrotum and looked like fatty lumps.
A man with four autoimmune diseases suggests a new category for multiple autoimmune syndrome.
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September 1987 in “PubMed” Most hair loss cases are caused by four main conditions, and understanding them is key to treatment.
1 citations
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December 2013 in “Urological Science” A man developed male breast cancer after four years of finasteride treatment for an enlarged prostate.
May 2021 in “Histochemistry and Cell Biology” The May issue discussed publishing agreements and four studies on cholesterol in hair, cancer cell changes, hormones in the uterus, and skin protein effects.
77 citations
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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.
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January 2006 in “Journal of Structural Biology” Hair follicles form hard α-keratin filaments in four steps, showing structural differences.
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December 2007 in “Journal of biological chemistry/The Journal of biological chemistry” A specific chemical change in the S100A3 protein leads to the formation of a four-part structure important for hair formation.
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March 2001 in “Clinics in Dermatology” Genes and hormones cause hair loss, with four genes contributing equally.
2 citations
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July 2017 in “Oman medical journal” A man with a rare adrenal cancer showed unusual symptoms and died four months after diagnosis.
1 citations
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May 2023 in “Cureus” A rare hair follicle tumor in the hand was successfully removed with no return after four years.
July 2025 in “Russian Journal of Skin and Venereal Diseases” Lichen planus on the scalp can cause scarring hair loss and has four main types.
September 2024 in “The Indian Veterinary Journal” A Labrador pup with a fungal skin infection was fully cured in four weeks using topical treatments and immune boosters.
466 citations
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August 2004 in “Journal of the American Academy of Dermatology” Rosacea is a skin condition with unclear causes, classified into four subtypes.
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June 2006 in “Journal of The American Academy of Dermatology” Finasteride increases hair weight and count in men with hair loss, with best results after four years.
1 citations
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May 2018 in “Psychology, Health & Medicine” The two-factor model fits better for Chinese patients' understanding of illness causes than the original four-factor model.
November 2015 in “Summit (Simon Fraser University)” Surgical stress temporarily changes hair fiber dimensions, returning to normal after four weeks.
19 citations
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November 1985 in “Archives of Dermatology” The newborn's skin blisters healed without scarring, leaving some light spots, and stopped forming after four months.
55 citations
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May 1985 in “Archives of Dermatology” Calcitriol-resistant rickets is an inherited disorder that affects hair growth and causes hair loss.
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May 2019 in “Bioactive compounds in health and disease” Certain vitamins, minerals, and foods like black raspberry extract and egg yolks can help reduce hair loss and promote hair growth.
August 2019 in “bioRxiv (Cold Spring Harbor Laboratory)” The model successfully predicted new uses for existing drugs, like using certain hormonal and heart medications for respiratory and Parkinson's diseases, and a cancer drug for diabetes.
April 2015 in “Reactions Weekly” Some elderly men had healing problems after using imiquimod and diclofenac for skin conditions on their scalps.
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August 1999 in “The American journal of pathology” Basal cell carcinomas have much higher levels of Vitamin D3 receptors compared to healthy skin.