18 citations
,
January 1992 in “Dermatology” A 4-year-old girl has a rare condition causing hairlessness and skin bumps, but normal teeth and sweating.
12 citations
,
December 2011 in “Canadian Journal of Microbiology” Serotype 4 of Ureaplasma showed the highest pathogenicity in female mice.
11 citations
,
January 2018 in “DOAJ (DOAJ: Directory of Open Access Journals)” A 4-year-old boy with a rare type of rickets and hair loss improved in bone health but not hair growth after vitamin D and calcium treatment.
7 citations
,
October 2024 in “Drug Delivery and Translational Research” A 4% nanoparticle concentration and 4 Hz massage improve drug delivery into hair follicles.
3 citations
,
July 2004 in “SKINmed/Skinmed” A 4-year-old girl was diagnosed with erythrokeratodermia variabilis after other treatments failed.
2 citations
,
November 2023 in “Indian Dermatology Online Journal” A 4-year-old girl with a rare lupus condition was successfully treated with oral corticosteroids, leading to full recovery and hair regrowth.
2 citations
,
July 2005 in “Baylor University Medical Center Proceedings” A 4-year-old girl was diagnosed with trichotillomania, a condition where she pulls out her hair, which may resolve on its own or require therapy.
1 citations
,
August 2010 in “Optometry and Vision Science” A 4-year-old boy's vision and hair loss were likely caused by inflammation.
January 2026 in “Journal of Innovative and Creativity (Joecy)” The 4% and 9% celery hair tonics are stable and suitable for herbal cosmetics.
September 2024 in “Journal of the American Academy of Dermatology” Baricitinib 4 mg is effective and safe for treating severe alopecia areata.
January 2023 in “Han'gug mi'saengmul saengmyeong gong haghoeji/Han-guk misaengmul saengmyeong gonghak hoeji” NOC-4 extract promotes black hair and hair growth effectively.
January 2022 in “Clinical Cases in Dermatology” A 4-year-old boy has a rare type of hair loss in a line pattern on his scalp.
November 2017 in “Pediatrics in Review” A 4-year-old girl with hair loss was diagnosed with early-onset trichotillomania and improved with behavioral interventions.
April 2016 in “Journal of the American Academy of Dermatology” A 4-year-old girl had a rare hair disorder affecting only part of her scalp.
April 2012 in “The FASEB Journal” LPA 4 helps control blood and lymph vessel development in zebrafish.
April 2002 in “Postgraduate medicine” A 4-year-old boy's itchy, scaly scalp and hair loss were correctly diagnosed as tinea capitis after initial misdiagnosis.
378 citations
,
September 1998 in “The Journal of Clinical Endocrinology and Metabolism” PCOS affects about 4% of women in the southeastern U.S. equally across Black and White populations.
22 citations
,
May 2017 in “Journal of dermatological treatment” BD 1/4 dilution is the best for treating localized alopecia areata in adults.
19 citations
,
March 2012 in “Clinical Endocrinology” FAI values above 6.4 may suggest high androgen levels and increased metabolic risks in Chinese women of reproductive age.
4 citations
,
October 2020 in “Therapeutic drug monitoring” Lower tacrolimus levels (4-7 ng/mL) after liver transplant may be safe and improve graft and kidney function.
3 citations
,
January 2017 in “Journal of Pakistan Association of Dermatology” Tinea capitis affected 4.3% of school children, mostly boys, with T. violaceum as the main cause.
November 2024 in “International Journal of Social health” Virgin Coconut Oil with 4% red chili oil boosts hair growth.
October 2024 in “Medicina Estética Revista Científica de la Sociedad Española de Medicina Estética (SEME)” Temperaturas de 4 °C son ideales para conservar injertos capilares.
December 2022 in “Jurnal Farmasi Klinik Base Practice” Cyclophosphamide helped 59.4% of children with steroid-resistant nephrotic syndrome but caused side effects in 40.6%.
25 citations
,
December 1973 in “Biochemical Journal” Guinea-pig hair and follicle proteins are mostly similar, but follicles have more group 2 proteins and fewer group 3 and 4 proteins.
18 citations
,
April 2021 in “Experimental Dermatology” COVID-19 may cause hair loss and scalp pain due to inflammation and changes in hair follicle receptors, but these symptoms typically resolve in 2 to 4 months.
3 citations
,
January 2021 in “Skin appendage disorders” Hair loss can occur about 4 weeks after scalp surgery but usually grows back within 3 months without treatment.
3 citations
,
January 2018 in “İstanbul Kuzey Klinikleri” Hair loss was found in 37.4% of surveyed rural high-school students in Eskisehir, Turkey, affecting their quality of life, especially in general health and mental well-being.
1 citations
,
August 2023 in “JAMA Dermatology” Increasing the dose of baricitinib to 4 mg helps more patients with severe alopecia areata regrow hair.
1 citations
,
June 2023 in “BMC Pediatrics” Most children recovered from COVID-19 in 4 weeks, but some experienced long-term symptoms, especially older kids.