7 citations
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November 2022 in “International Journal of Molecular Sciences” As Japanese males age, their hair darkens due to increased melanin, with males generally having darker hair than females.
April 2024 in “International journal of molecular sciences” Dermal factors are crucial in regulating melanin production in skin.
67 citations
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July 2016 in “Reviews in Endocrine and Metabolic Disorders” Stress can worsen skin conditions by affecting hormone levels and immune response.
14 citations
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January 2020 in “International Journal of Biological Sciences” Ranitidine and finasteride lower TMAO levels, reducing heart and kidney damage by changing gut bacteria.
21 citations
,
January 2020 in “Conservation Physiology” Hair follicles increase hair cortisol levels, so consistent hair collection methods are important.
15 citations
,
January 1971 in “Journal of animal science/Journal of animal science ... and ASAS reference compendium” Hair analysis can't determine ponies' calcium and phosphorus levels; use soil and feed tests instead.
January 2025 in “Clinical Cosmetic and Investigational Dermatology” Pediatric alopecia areata is more immune-active than adult cases, suggesting age-specific treatments and potential use of JAK inhibitors.
October 2023 in “Scientific reports” Dexamethasone affects hair growth by altering levels of proteins that either promote or inhibit hair follicle growth.
34 citations
,
March 2003 in “Veterinary Dermatology” Most dogs with alopecia had higher than normal levels of certain hormones, but hair loss might not always be linked to these hormone changes.
21 citations
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January 2002 in “Journal of Cutaneous Medicine and Surgery” Finasteride affects hair growth by changing caspase and XIAP levels, potentially treating hair diseases.
10 citations
,
August 2023 in “Animals” SLC45A2 and GPNMB genes help control chicken feather color by promoting melanin.
1 citations
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October 2023 in “PloS one” Cosmetic hair treatments can increase hair testosterone levels, while natural hair color does not affect it.
August 2025 in “Intisari Sains Medis” The buffy coat method yields higher TGF-β1 levels in PRP, especially in males.
April 2008 in “Obstetrics, gynaecology and reproductive medicine” Hirsutism is often caused by high male hormone levels and can be treated with lifestyle changes and medications.
6 citations
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February 2009 in “Veterinární Medicína” Deslorelin effectively treats hair loss in neutered ferrets by reducing hormone levels.
February 2025 in “Biomolecules” RORA boosts autophagy in hair follicle stem cells, potentially aiding hair growth.
31 citations
,
September 2006 in “International journal of gynaecology and obstetrics” New treatments for PCOS focus on insulin resistance and reducing testosterone levels, along with traditional hormone therapies.
375 citations
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July 2006 in “Journal of Investigative Dermatology” Stress can worsen skin and hair conditions by affecting the skin's immune response and hormone levels.
January 2023 in “Brazilian Journals Editora eBooks” HPLC may detect prediabetes and diabetes earlier than Immunoturbidimetry because it shows higher A1c levels.
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.
June 2008 in “British Journal of Dermatology” UK medical students lack dermatology education, liver biopsy patients with risk factors show more fibrosis, and certain fungi resist drugs due to melanin; genetics may influence female hair loss.
May 2006 in “Women's Health Medicine” Excessive hair growth in women, often from high androgen levels, is usually caused by PCOS, and can be treated with hair removal, medication, and possibly weight loss.
18 citations
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November 2016 in “Neuromuscular Disorders” Patients with myotonic dystrophy often have skin problems that suggest early aging and vitamin D issues, and the severity of these problems is linked to their genetic condition and vitamin D levels.
August 2024 in “Journal of Cosmetic Dermatology” Telogen effluvium is linked to deficiencies in iron, vitamin B12, and thyroid function.
Different stem cells are key for hair growth and health, and understanding their regulation could help treat hair loss.
July 2023 in “Drug testing and analysis (Print)” Homemade hair treatments can significantly lower drug levels in hair, possibly causing false-negative drug tests.
103 citations
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December 2021 in “Journal of biological rhythms” Shift work disrupts the body's natural clock, leading to health problems.
129 citations
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February 2006 in “Andrology” Men with low testosterone should be carefully evaluated and monitored before and during treatment.
9 citations
,
July 2014 in “PubMed” The review doesn't clearly say if biotin, caffeine, melatonin, a marine extract, and zinc are effective for treating hair loss.
1 citations
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December 2022 in “Archives of Dermatological Research” Acne treatment with isotretinoin increases the presence of p53, a protein, in skin and oil glands, which may help reduce acne severity.