98 citations,
June 2001 in “Journal of biological chemistry/The Journal of biological chemistry” A cluster of sulfur-rich hair protein genes was found on chromosome 17.
78 citations,
April 1994 in “Archives of dermatology” The study found that Keratosis Pilaris Atrophicans is a genetic skin condition that starts in childhood, involves inflammation and scarring, and current treatments are only somewhat effective.
7 citations,
March 2022 in “International Journal of Molecular Sciences” FGF21 can help reduce skin inflammation caused by C. acnes.
4 citations,
January 2020 in “Genes” The KRTAP21-2 gene affects wool length and quality in sheep.
2 citations,
December 2013 in “Cancer research” Enobosarm may effectively treat androgen receptor-positive breast cancer with fewer side effects.
1 citations,
May 2013 in “Hair transplant forum international” Non-classical 21 hydroxylase deficiency is an underdiagnosed cause of female hair loss and polycystic ovarian syndrome.
February 2024 in “Planta” TRM21 helps control flavonoid production and root hair growth in Arabidopsis thaliana.
May 2015 in “Cancer research” After chemotherapy for early breast cancer, 33.4% of patients had long-term significant hair loss, with some hair regrowth over time, but treatments for hair loss were largely ineffective.
January 1981 in “The Journal of Toxicological Sciences” Hydrocortisone 17-butyrate 21-propionate ointment caused reversible side effects like skin issues, weight gain, and organ changes in dogs.
7 citations,
July 2019 in “Animals” The KRTAP21-1 gene affects wool yield and can help improve wool production.
January 2021 in “Our Dermatology Online” A young man's hair loss was the only sign of syphilis, which improved after treatment.
January 2023 in “International journal of homoeopathic sciences” Homeopathic remedies can help manage PCOS symptoms in girls aged 17-21.
September 2014 in “Hair transplant forum international” I'm sorry, but I can't provide a summary as I don't have the details of the document.
November 2014 in “Hair transplant forum international” I'm sorry, but I can't provide a summary as there's no conclusion given in the text.
7 citations,
October 2018 in “Journal of Craniofacial Surgery” About 21.3% of young, healthy Chinese men experience hair loss. Hairlines are mostly linear or have a central protrusion. Hair is densest on the top and back of the head, and hair follicles usually have 1 or 2 hairs. This information can help in designing hair restoration procedures.
7 citations,
July 2006 in “Journal of cutaneous pathology” A 21-year-old had a rare developmental anomaly with a misplaced sebaceous gland in a hair follicle.
September 2023 in “Curēus” A 21-year-old male has a benign skin condition called Becker's nevus, which he chose not to treat.
November 2022 in “Journal of the Endocrine Society” A 21-year-old male with a rare genetic disorder experienced sudden hair loss and high DHEAS levels, likely due to a condition similar to PCOS, usually seen in women.
A 21-year-old with lichen planopilaris was successfully treated, stopping disease progression and preventing crusts.
March 2024 in “Jordan Journal of Biological Sciences” The Pamona community uses 21 types of mushrooms for food, medicine, and other needs, highlighting the importance of conserving these resources.
12 citations,
May 2017 in “Medicine” Oral isotretinoin was recommended for a 21-year-old woman with severe acne.
1 citations,
October 2021 in “International Journal of Research in Dermatology” Alopecia areata mainly affects men aged 21-40 and is linked to autoimmune issues, thyroid problems, and inflammation.
November 2023 in “Jurnal Ilmu Kesehatan Hewan” The dog's condition improved after 21 days of treatment.
July 2023 in “Journal of lasers in medical sciences” Red laser therapy helped regrow hair in an alopecia areata patient within 21 days.
August 2022 in “International journal of reproduction, contraception, obstetrics and gynecology” The study found that 7.21% of young girls have polycystic ovarian syndrome, with symptoms like irregular periods, abnormal hair growth, and acne. Early diagnosis is important to prevent long-term complications.
48 citations,
October 2010 in “Archives of Dermatological Research” Juvéderm fillers effectively reduce wrinkles for up to 21 months with less filler needed for repeat treatments.
January 2021 in “International journal of dermatology, venereology and leprosy sciences” Most adult women experiencing hair loss are aged 21-40, with the most common type being female pattern hair loss. Trichoscopy is a useful tool for diagnosing different types of hair loss.
August 2023 in “International journal of reproduction, contraception, obstetrics and gynecology” PCOS is common in young women, especially those aged 21-30, and often involves symptoms like irregular periods, weight gain, and acne.
January 1997 in “Pediatrics in review” The document concludes that common menstrual disorders affect adolescent women, with the normal menstrual cycle lasting 21 to 35 days.
8 citations,
January 2015 in “Clinical and Experimental Dermatology” A new model for hair regeneration in mice was created in 2015, which is faster and less invasive than the old method, producing normal hairs in about 21 days.