January 2019 in “Journal of cosmetology & trichology” L-Cystine and L-Cystine with Kera-Diet® safely improved hair and nail quality in healthy women.
113 citations
,
June 2010 in “Biological Chemistry” Cathepsin L deficiency causes large, abnormal cell structures and health issues in mice.
January 2026 in “Molecules” A new perming method is less damaging to hair and works as well as traditional methods.
67 citations
,
December 1990 in “The journal of cell biology/The Journal of cell biology” Researchers found genes for cysteine-rich proteins that form the protective layer of hair in humans and sheep.
10 citations
,
May 1974 in “American journal of diseases of children” The girl had a rare disorder causing mental and physical symptoms, with weak hair and unclear neurological issues.
21 citations
,
August 2002 in “British Journal of Ophthalmology”
111 citations
,
August 2002 in “Journal of Medicinal Chemistry” New compounds were made that block an enzyme linked to breast cancer better than existing treatments.
18 citations
,
January 2008 in “Sen'i Gakkaishi” Thioglycolic acid and L-cysteine change hair structure differently during perms, affecting hair strength and curling efficiency.
1 citations
,
August 2023 in “The journal of pharmacology and experimental therapeutics/The Journal of pharmacology and experimental therapeutics” Kir6.1 mutations in Cantú syndrome increase channel sensitivity and hyperpolarization, while SUR2B mutations do not.
9 citations
,
January 2011 in “Journal of X-ray science and technology” Perming and bleaching damage hair differently, with bleached hair having more cysteic acid in the cuticle.
4 citations
,
April 1955 in “Textile Research Journal” The effectiveness of reducing agents on hair fibers depends on their electrode potentials.
66 citations
,
October 2002 in “Human molecular genetics online/Human molecular genetics” A gene mutation in mice causes skin defects and early death.
Skin tumor cells in patients with tuberous sclerosis have higher levels of a protein called cathepsin B.
5 citations
,
August 1998 in “PubMed” Intravenous cyclophosphamide effectively treated steroid-resistant lupus cystitis and peritonitis.
9 citations
,
October 2008 in “Mutation research” N-acetyl-L-cysteine (NAC) can prevent DNA damage and protect cells from harm.
The transporter protein SH1446 in Staphylococcus hominis is key to underarm odor production.
56 citations
,
October 2007 in “Journal of Biological Chemistry” Cathepsin L is essential for heart health and its absence causes heart problems and hair loss.
7 citations
,
March 2022 in “The FASEB journal” Adult mice with CBS deficiency show minimal health issues and normal lifespan despite high homocysteine levels.
2 citations
,
January 1968 in “PubMed” Sulfur-containing radioprotectors can protect hair from X-ray damage if given before exposure but worsen damage if given after.
May 2024 in “British journal of dermatology/British journal of dermatology, Supplement” CYLD deficiency in skin tumors disrupts hair follicle cell processes and protein secretion.
5 citations
,
September 2018 in “International journal of genomics” Genetic mutations that disrupt homocysteine breakdown lead to increased damage in mouse hair keratin.
January 2017 in “Springer eBooks” 91 citations
,
July 2004 in “Journal of Biological Chemistry” Overexpressing SSAT enzyme reduces prostate tumor growth in mice.
125 citations
,
February 1971 in “Biochemistry” Specific cross-linkages help make hair proteins stable and strong.
The study identified a key protein involved in producing underarm odor and found ways to inhibit it.
35 citations
,
September 1994 in “Journal of Investigative Dermatology”
7 citations
,
January 1982 in “Acta agriculturae Scandinavica” Mink use L-methionine and L-cystine slightly better than natural amino acids for hair growth, but D-methionine is not effective.
9 citations
,
January 2006 in “Cutaneous and ocular toxicology” L-cystine, D-pantothenat, and miliacin together significantly boost keratinocyte growth and metabolism.
37 citations
,
September 2003 in “Journal of Medicinal Chemistry” A substance called Compound 2g can strongly block STS (a hormone-related enzyme) without affecting estrogen levels, making it potentially good for treating breast cancer.
146 citations
,
May 2002 in “The American journal of pathology” Cathepsin L is essential for normal hair growth and development.