September 2008 in “Pediatric Rheumatology” Two children with lysinuric protein intolerance showed symptoms similar to lupus.
March 1995 in “Proceedings of the British Society of Animal Science” Dogs absorb zinc better from amino acid-chelated sources than inorganic ones.
March 1995 in “Proceedings of the British Society of Animal Science” Zinc is absorbed better in dogs when supplied as a chelate with amino acids.
Rapid weight loss can cause temporary hair loss, but hair usually grows back.
February 2025 in “Clinical Cosmetic and Investigational Dermatology” Certain blood metabolites are linked to female pattern hair loss, with some increasing risk and others offering protection.
December 2025 in “Scientific Reports” Gut microbiota and metabolic pathways may play a key role in PCOS development.
September 2025 in “International Journal of Molecular Sciences” Bacteroides fragilis and Microbacterium sp. T32 may be linked to autoimmune activity in Hashimoto's thyroiditis and alopecia areata.
February 2025 in “Animals” Amino acid-complexed trace minerals improve hair quality and activity in senior dogs.
July 2024 in “Experimental Dermatology” AP collagen peptides help hair grow and improve hair health.
February 2024 in “bioRxiv (Cold Spring Harbor Laboratory)” Tandem repeats significantly influence hair color, especially darker shades, across different ancestries.
August 2022 in “Metabolites” Different types of skin on mice have unique chemical profiles related to how they grow and react to stress.
September 2020 in “Research Square (Research Square)” Long noncoding RNAs help regulate hair follicle density in rabbits.
August 2019 in “Research Square (Research Square)” Certain long non-coding RNAs in cashmere goats affect hair growth when treated with a specific growth factor.
January 2015 in “Journal of Nutrition and Health” Fish oil improves hair growth in diabetic and high-cholesterol rats.
January 2007 in “日本看護学会抄録集 成人看護1” Certain amino acids in 5AR1 and 5AR2 are crucial for binding and resistance to Finasteride.
November 2005 in “PubMed” The hairless gene in Kunming mice is important for hair and skin, and shows genetic variations.
August 2022 in “International Journal of Health Sciences (IJHS)” The combined treatment significantly improved hair growth and thickness compared to the control group.
18 citations
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February 1992 in “Molecular Biology Reports” A specific type II hair keratin was identified and found in hair cortex and tongue cells.
5 citations
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January 2016 in “Genetics and Molecular Research” Researchers found 617 genes that behave differently in cashmere goat hair follicles, which could help understand hair growth.
2 citations
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July 2011 in “AFRICAN JOURNAL OF BIOTECHNOLOGY” Seven genetic variations in sheep's DSG4 gene are linked and affect wool traits.
72 citations
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September 1975 in “Biology of Reproduction” Most zinc in rat sperm is in the tail, linked to structures similar to hair keratin.
61 citations
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February 1997 in “Differentiation” Hair differentiation starts earlier than thought, involving multiple type-II keratins.
54 citations
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January 2013 in “Journal of Biological Macromolecules” A new method effectively separates keratin-associated proteins and keratin from human hair.
53 citations
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October 2003 in “Genetics” The mK6irs1/Krt2-6g gene likely causes wavy hair in mice.
49 citations
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September 2004 in “Journal of the European Academy of Dermatology and Venereology” Careful light microscopy is crucial for detecting mild cases of pili annulati, which weakens hair and varies widely in expression.
35 citations
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January 2013 in “The Journal of experimental medicine/The journal of experimental medicine” CD98hc's role in skin health decreases with age.
30 citations
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April 2009 in “Mycoses” Microsporum gypseum fungus breaks down keratin in hair by digesting it enzymatically, starting with less keratinized parts.
29 citations
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July 1991 in “Biochimica et Biophysica Acta (BBA) - General Subjects” Glycoproteins are present in the cell membranes of various keratin fibers.
26 citations
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January 1993 in “Dermatology” A rare case of isolated trichothiodystrophy was identified, marked by brittle hair with low sulfur content.
21 citations
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January 1995 in “Molecular Biology Reports” Scientists discovered two versions of a new human hair keratin gene.