100 citations
,
June 2006 in “British Journal of Dermatology” Hair loss severity relates to increased miniaturization in female pattern hair loss.
86 citations
,
October 2005 in “Experimental Dermatology” The Foxn1 gene mutation causes hairlessness and immune system issues, and understanding it could lead to hair growth disorder treatments.
79 citations
,
December 1999 in “Mechanisms of Development” Whn is crucial for hair growth in certain areas by controlling a specific gene.
73 citations
,
April 2019 in “Experimental Dermatology” The scalp's microorganisms significantly affect hair health and disease.
52 citations
,
June 2013 in “The Journal of Clinical Endocrinology and Metabolism” The research found that anovulatory young women have higher androgen and hormone levels than those who ovulate, suggesting immature hormonal regulation rather than a specific condition.
45 citations
,
January 2012 in “International Journal of Trichology” Trichoscopy is better than trichogram for diagnosing female hair loss.
43 citations
,
April 2021 in “Angiogenesis” Lymphatic vessels develop from various cell types and mechanisms, not just veins.
42 citations
,
June 2009 in “Journal of Cosmetic Dermatology” Hair loss in males involves inflammation, collagen buildup, and follicle damage, with severity increasing with age and baldness duration.
41 citations
,
September 2003 in “Journal of Investigative Dermatology” Overexpression of COX-2 causes early hair loss in mice, but can be prevented with a COX-2 inhibitor.
38 citations
,
October 2006 in “Fertility and Sterility” The document concludes that identifying the cause of amenorrhea is crucial for proper treatment.
38 citations
,
October 1988 in “Clinics in Dermatology” Hormones, nutrition, and seasonal changes regulate hair growth cycles, with androgens extending growth phases and factors like aging and malnutrition affecting hair loss and thinning.
35 citations
,
March 2014 in “British Journal of Dermatology” Hair loss in male pattern baldness involves muscle degeneration and increased scalp fat.
32 citations
,
August 2015 in “Journal of Investigative Dermatology” Prominin-1 expressing cells in the dermal papilla help regulate hair follicle size and communication but don't aid in skin repair.
30 citations
,
July 2004 in “Fertility and Sterility” Amenorrhea is when a woman doesn't have periods, with primary amenorrhea starting by age 15 or within five years of breast development, and secondary amenorrhea when periods stop for three months. It affects 3-4% of women not pregnant, breastfeeding, or in menopause, mainly due to polycystic ovary syndrome, hypothalamic amenorrhea, hyperprolactinemia, and ovarian failure.
29 citations
,
May 1998 in “Bulletin of the American College of Nurse-Midwifery” The document concludes that menopause should be seen as a natural part of aging and managed with personalized care and informed choices.
28 citations
,
March 2019 in “Journal of Dermatological Science” The document concludes that while lab results for hair growth promotion are promising, human trials are needed and better testing methods should be developed.
26 citations
,
December 1999 in “Journal of Investigative Dermatology” Certain genes are linked to wool follicle structure and function, but not hair cycle regulation.
25 citations
,
June 2022 in “Developmental cell” Overactivating Hedgehog signaling makes hair follicle cells in mice grow hair faster and create more follicles.
25 citations
,
October 2019 in “Journal of Endocrinological Investigation” Both types of oral contraceptives improved symptoms and hormone levels in women with PCOS.
21 citations
,
September 2004 in “Fertility and Sterility” Amenorrhea, or the absence of periods, should be evaluated by age 15 or within five years of early breast development, and is most commonly caused by conditions like polycystic ovary syndrome and hypothalamic amenorrhea.
20 citations
,
September 2013 in “Anti-Cancer Drugs” PTH-CBD could help prevent and treat hair loss caused by chemotherapy in mice.
13 citations
,
March 2014 in “Cutaneous and Ocular Toxicology” Oral isotretinoin for severe acne can change hormone levels but does not significantly affect ovarian function.
13 citations
,
December 2020 in “Dermatologic Therapy” Sebaceous glands in our skin, developing during pregnancy and active in puberty, produce sebum for skin lubrication, temperature control, and fighting germs, also help in hormone regulation, and their dysfunction can cause conditions like acne and hair loss.
12 citations
,
August 2022 in “Stem cell reviews and reports” Increasing PBX1 reduces aging and cell death in hair follicle stem cells by boosting SIRT1 and lowering PARP1 activity.
12 citations
,
April 2022 in “Frontiers in Cell and Developmental Biology” β-catenin signaling speeds up hair follicle aging, causing graying and thinning.
11 citations
,
September 2012 in “Journal of animal physiology and animal nutrition” Higher protein diets with DL-methionine improve mink hair growth and fur quality.
10 citations
,
May 2021 in “Clinical, cosmetic and investigational dermatology” UV exposure causes hair thinning, graying, and changes in hair growth cycles in mice.
10 citations
,
May 2020 in “Dermatology Research and Practice” Proteoglycans are important for hair growth, and a specific treatment can help reduce hair loss.
10 citations
,
January 2018 in “Functional Foods in Health and Disease” Black raspberry extract may help with hair growth, skin whitening, and weight loss.
6 citations
,
September 2025 in “Scientific Reports” Machine learning can accurately diagnose PCOS non-invasively using clinical and ultrasound features.