June 2025 in “Rapid Communications in Mass Spectrometry” In this study, researchers developed a simplified and reliable method to prepare human hair shaft samples, achieving over 75% protein extraction efficiency and improved keratin sequence coverage, with the approach showing high reproducibility across different labs and operators.
11 citations
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August 2018 in “Asian-Australasian journal of animal sciences” This study found that a short daily photoperiod increased crude protein digestibility, secondary hair follicle activity, and cashmere quality in Inner Mongolia white cashmere goats without harming fiber characteristics.
223 citations
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January 2000 in “BioFactors” This study reports that bioactive peptides derived from food proteins may lower serum cholesterol and exhibit antihypertensive and immunostimulating effects, suggesting potential in preventing lifestyle-related diseases.
19 citations
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March 1961 in “Nature” A fatty acid/protein complex in human hair helps protect it from damage.
December 2025 in “Rapid Communications in Mass Spectrometry” This study found that pepsin digestion was more effective than trypsin at identifying keratin-associated proteins in human hair shafts and confirmed that trypsin introduced a bias in the analysis of protein composition that pepsin can correct.
