49 citations
,
March 2018 in “Toxicological sciences” Low doses of mixed chemicals cause permanent reproductive malformations in male rats.
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.
17 citations
,
February 2019 in “Journal of steroid biochemistry and molecular biology/The Journal of steroid biochemistry and molecular biology” AKR1D1 controls glucocorticoid levels and receptor activity in liver cells.
4 citations
,
April 2021 in “Frontiers in Immunology” Different types of RNAs are found in varying amounts in patients with Polycystic Ovary Syndrome, suggesting they could be important in the disease's development and potentially used as disease markers.
Hair can accurately predict iron levels in cattle muscle, helping diagnose mineral imbalances.
12 citations
,
November 2018 in “Psychoneuroendocrinology”
10 citations
,
July 2019 in “Journal of Asia-Pacific Entomology” Different silkworm varieties have varying nutrient levels in their powders, which may promote hair growth.
7 citations
,
August 2021 in “Heliyon” Phyllotex™ extract was found to significantly promote hair growth and protect against hair loss.
3 citations
,
November 2022 in “International journal of environmental research and public health/International journal of environmental research and public health” Ethnic Indian women with PCOS often have early symptoms, delayed diagnosis, and need better information and support for treatment and lifestyle management.
2 citations
,
July 2019 in “PLOS ONE” Certain genetic variations are linked to higher liver enzyme levels in patients treated for chronic hepatitis C with specific drugs.
17 citations
,
December 2010 in “Journal of Investigative Dermatology” Flightless I protein affects hair growth, with low levels delaying it and high levels increasing hair length in rodents.
47 citations
,
August 2000 in “Endocrine Reviews” The document concludes that more research is needed to understand excessive hair growth in women with normal hormone levels and regular ovulation.
23 citations
,
January 2020 in “Frontiers in Pharmacology” Dihydrotestosterone affects hair growth by changing the Wnt/β-catenin pathway, with low levels helping and high levels hindering growth.
1 citations
,
March 2005 in “International Journal of Cosmetic Science” Twisting hair weakens it, but strength can be recovered at low twist levels.
July 2025 in “Archives of Sexual Behavior” Men's facial appearance shows age, body fat, and testosterone levels, not metabolic health.
142 citations
,
January 2019 in “Frontiers in Neuroendocrinology” Postpartum depression is linked to changes in brain chemicals, inflammation, stress, and certain genes, and can potentially be identified by markers like specific steroids, serotonin levels, and vitamin D levels.
38 citations
,
February 2005 in “The journal of sexual medicine” The testosterone patch and gel are both effective, but they have different absorption patterns and effects on hormone levels.
June 2025 in “Cell Metabolism” Serine is vital for hair follicle stem cells to balance hair growth and skin repair.
34 citations
,
August 2015 in “Frontiers in Behavioral Neuroscience” Allopregnanolone affects fear responses differently in male and female rats, possibly explaining sex differences in anxiety disorders.
17 citations
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January 2020 in “The World Journal of Men's Health” Long-term use of finasteride and dutasteride can cause serious health issues like diabetes and liver problems.
11 citations
,
May 2012 in “Genesis” Bmpr2 and Acvr2a receptors are crucial for hair retention and color.
May 2023 in “Journal of Clinical Medicine” New understanding and treatments for hair loss are improving, but more research is needed.
January 2017 in “Journal of Investigative Dermatology Symposium Proceedings” The 2015 Hair Research Congress concluded that stem cells, maraviroc, and simvastatin could potentially treat Alopecia Areata, topical minoxidil, finasteride, and steroids could treat Frontal Fibrosing Alopecia, and PTGDR2 antagonists could also treat alopecia. They also found that low-level light therapy could help with hair loss, a robotic device could assist in hair extraction, and nutrition could aid hair growth. They suggested that Alopecia Areata is an inflammatory disorder, not a single disease, indicating a need for personalized treatments.
63 citations
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February 2017 in “ACS biomaterials science & engineering” Polydopamine is a safe, effective, and permanent hair dye that turns gray hair black in one hour.
10 citations
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May 2021 in “Clinical, cosmetic and investigational dermatology” UV exposure causes hair thinning, graying, and changes in hair growth cycles in mice.
December 2024 in “Research Journal of Pharmaceutical Dosage Forms and Technology” The hair oil may effectively treat common hair problems with fewer side effects.
5 citations
,
January 2017 in “Acta Endocrinologica” High androgen levels in postmenopausal women may suggest an ovarian tumor, and removing it can improve heart and metabolic health.
53 citations
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August 2019 in “American journal of human genetics” FOXN1 gene variants cause low T cells and immune issues from birth.
31 citations
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April 2016 in “Nature communications” Certain signals are important for reducing specific chemical markers on hair follicle stem cells during rest periods, which is necessary for healthy hair growth.
18 citations
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March 2020 in “Frontiers in Neuroendocrinology” The enzymes 5α-reductase and 3α/β-hydroxysteroid oxidoreductase help create brain-active substances from progesterone and testosterone, which could be used for treatment, but more research is needed to ensure their safety and effectiveness.