26 citations
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January 1992 in “Carcinogenesis” TPA strongly increases ODC activity in certain skin cells, potentially aiding tumor growth.
August 2022 in “Clinical and Experimental Dermatology” Amino acid supplements may not be necessary for all women with chronic hair loss.
May 2022 in “The FASEB Journal” Finasteride may help treat Neutrophil Actin Dysfunction by reducing LSP1 gene activity.
53 citations
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May 1996 in “The Journal of Clinical Endocrinology & Metabolism” Different mutations in the 5 alpha-reductase-2 gene were found in affected individuals in the Dominican Republic, suggesting no common ancestry.
55 citations
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February 1990 in “Journal of Nutrition” Selenium in hair and nails is higher with L-selenomethionine and low methionine.
26 citations
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March 2006 in “Endocrine, metabolic & immune disorders. Drug targets” This enzyme helps metabolize fatty acids and isoleucine, and could be key in treating neurological diseases and certain cancers.
18 citations
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October 2022 in “JCI Insight” Abnormal amino acid metabolism may worsen rosacea symptoms.
July 2023 in “Developmental medicine and child neurology/Developmental medicine & child neurology” DFMO treatment improves hair growth, muscle tone, and development in Bachmann-Bupp syndrome patients.
117 citations
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May 2017 in “Human Reproduction Update” The update highlights that non-classic congenital adrenal hyperplasia is common in women with excess male hormones, requires specific hormone tests for diagnosis, and has various treatment options depending on age and symptoms.
January 2026 in “Applied Sciences” Cyclic ADP-ribose helps regulate calcium and signals that promote hair growth in hair follicle cells.
7 citations
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June 2021 in “Amino acids” Human hair protein modifications could potentially indicate heart disease risk.
18 citations
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January 1978 in “Advances in experimental medicine and biology” Hair cystine levels may indicate protein malnutrition, but more research is needed.
April 2015 in “Andrology” HNG may help prevent the negative effects of chemotherapy on sperm production and white blood cell counts.
9 citations
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August 2005 in “Experimental Dermatology” Modified pep7, named EPM peptide, effectively promotes hair growth at low concentrations and works well with minoxidil.
53 citations
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July 1981 in “Journal of Endocrinology” α-MSH and cyclic AMP boost melanin production, while cyclic GMP and melatonin reduce it.
12 citations
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February 1975 in “Journal of Steroid Biochemistry”
42 citations
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April 2013 in “Steroids” Non-classic congenital adrenal hyperplasia is a common disorder causing symptoms like acne and infertility, and it's managed based on symptoms, not just test results. Treatment can improve fertility and reduce miscarriage risk.
39 citations
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August 1998 in “FEBS Letters” Two new enzymes, PAD-R11 and PAD-R4, were cloned and showed activity, with PAD-R11 resembling epidermal enzymes.
29 citations
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August 2005 in “Biopolymers” L-cysteine slows down the breaking of bonds in hair due to electrostatic interactions.
24 citations
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April 2016 in “Experimental Dermatology” Chemical treatments like dyeing, perming, and bleaching damage hair by altering amino acids and lipids.
54 citations
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November 2001 in “Urology” The length of the CAG repeat in the androgen receptor gene affects the risk and progression of prostate cancer, BPH, infertility, and undermasculinized genitalia.
2 citations
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October 2018 in “The journal of pediatrics/The Journal of pediatrics” The document concludes that specific hair and blood vessel abnormalities in infants with seizures and developmental issues may indicate Menkes disease, which lacks a cure and is often fatal by age 3.
10 citations
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January 2001 in “ACTA HISTOCHEMICA ET CYTOCHEMICA” Lysosomal proteases and cytoplasmic enzymes help hair follicle cells develop and differentiate.
9 citations
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April 2018 in “Biology of reproduction” Diet changes hormone levels in pregnant ewes by affecting metabolism, not placental synthesis.
1 citations
,
September 2018 in “Apollo (University of Cambridge)” Phosphate starvation reduces calcium signaling in plant roots.
22 citations
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September 2003 in “Journal of Investigative Dermatology” New mutations in the EBP gene cause CDPX2, affecting bones, skin, eyes, and hair, with females generally less affected than males.
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.
14 citations
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August 2021 in “Molecular Genetics and Metabolism Reports” Pegvaliase effectively reduces blood phenylalanine levels in most PKU patients, but requires personalized plans and good communication to manage side effects.
188 citations
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January 2022 in “PubMed” Advancements in understanding, diagnosing, and managing congenital adrenal hyperplasia have improved treatment and long-term outcomes.
1 citations
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December 2011 in “EFSA Journal” Spermidine may help extend the growth phase of hair.