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.
21 citations
,
October 2017 in “Cell death and disease” Sesn2 protects inner ear hair cells from damage by regulating certain cell survival pathways.
62 citations
,
December 2007 in “Journal of biological chemistry/The Journal of biological chemistry” A specific chemical change in the S100A3 protein leads to the formation of a four-part structure important for hair formation.
113 citations
,
June 2010 in “Biological Chemistry” Cathepsin L deficiency causes large, abnormal cell structures and health issues in mice.
January 1996 in “Human Ecology Forum” Selenium is important for health but must be consumed in the right amount to avoid health issues.
1 citations
,
June 2009 in “Integrated Environmental Assessment and Management” Selenium is essential in small amounts but toxic in excess, requiring careful management.
January 2019 in “Journal of cosmetology & trichology” L-Cystine and L-Cystine with Kera-Diet® safely improved hair and nail quality in healthy women.
54 citations
,
February 2002 in “Carcinogenesis” Increasing SSAT makes skin more prone to cancer.
54 citations
,
May 2001 in “Journal of Investigative Dermatology” Excessive putrescine causes hair loss in transgenic mice by disrupting hair follicle development.
18 citations
,
February 2015 in “Acta Crystallographica Section D: Structural Biology” The study concludes that certain domains in Clostridium histolyticum enzymes are structurally unique, bind calcium to become more stable, and play distinct roles in breaking down collagen, with potential applications in medicine and drug delivery.
7 citations
,
March 2012 in “European Journal of Pediatrics” A boy with a rare skin condition and kidney disease improved with cyclosporine after steroids failed, suggesting a new treatment approach.
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.
3 citations
,
August 1988 in “PubMed” 34 citations
,
September 2007 in “Experimental Dermatology” The outer layer of Merino wool is rich in sulfur proteins, making it resistant to damage.
75 citations
,
March 2007 in “Journal of Biological Chemistry” QSOX enzymes help form protein bonds in cells, especially in tissues with high secretory activity.
5 citations
,
February 2015 in “Ophthalmic plastic and reconstructive surgery” Two new types of eyelid cysts were identified, each with different treatment challenges.
7 citations
,
December 1970 in “Biochimica et Biophysica Acta (BBA) - Protein Structure” July 2025 in “Journal of Investigative Dermatology” 1 citations
,
December 2019 Selenium is essential for health, but too much or too little can cause problems; blood selenium levels are a good measure of intake.
26 citations
,
January 1993 in “Dermatology” A rare case of isolated trichothiodystrophy was identified, marked by brittle hair with low sulfur content.
43 citations
,
July 1994 in “Journal of Cell Science” Cross-linked proteins help maintain the structure of hair, feathers, and hagfish teeth.
November 2025 in “Eurasian journal of applied biotechnology” Combining L-cysteine, NAC, and a MET inhibitor significantly kills cervical cancer cells.
3 citations
,
May 2024 in “Amino Acids” Disrupted cysteine metabolism may cause hair breakage in Alopecia Areata, suggesting potential treatments like N-acetylcysteine.
12 citations
,
July 2004 in “Molecular genetics and genomics” A new mouse mutation causes skin and hair defects due to a gene change.
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.
13 citations
,
September 2011 in “Archives of dermatology” A patient with steroid sulfatase deficiency had a unique hair pattern and a brain malformation not previously linked to the condition.
84 citations
,
June 1970 in “Journal of Investigative Dermatology” 4 citations
,
January 1989 Hair and nails can indicate selenium levels in the body.
April 2024 in “BMB Reports” Lack of Cisd2 disrupts calcium balance in cells, leading to poorly functioning neutrophils.