11 citations
,
January 1989 This case report describes two patients with trichothiodystrophy who exhibited a different pattern of hair protein composition changes, suggesting a subgroup of TTD characterized by partial loss of high-sulfur proteins without significant alteration in their amino acid composition.
10 citations
,
January 1989 in “Archives of Dermatological Research” The method effectively analyzes human hair proteins, especially nonfilamentous ones.
1 citations
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January 2019 in “Studia Biologica” This review discusses the properties and extraction methods of keratins from natural fibers and highlights their promising applications in fields such as biomedicine, bioengineering, and forensic science, but reports no new experimental results.
4 citations
,
October 2025 in “International Journal of Medical Sciences” This review reported that tripeptides, such as GHK and KdPT, show promise in enhancing wound healing through multiple mechanisms, including promoting cell migration, collagen deposition, and angiogenesis, while offering antimicrobial and anti-inflammatory benefits for both acute and chronic wounds.
24 citations
,
November 1997 in “Journal of Biological Chemistry” This study found that genes encoding mouse high-glycine/tyrosine proteins show distinct spatial and temporal expression patterns in hair follicles, suggesting diverse protein distribution during hair growth cycles.
Quickly fix tissue in formalin after excision to preserve it.
25 citations
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April 2014 in “Journal of Scientific and Innovative Research” This study evaluated Tridax procumbens extracts for their in-vitro alpha amylase inhibitory activity compared to standard antidiabetic agents, suggesting potential benefits for diabetes management.
This study found that a bio-based repair solution containing hydrolysed wool keratin, serine, and transglutaminase improved the physical and chemical properties of damaged hair, increasing its strength, flexibility, and thermal stability while offering long-lasting protection against chemical damage.
This paper describes an enzymatic method to isolate hair pigment from the keratin matrix without altering its chemical structure, but it presents no new results.
1 citations
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December 2022 in “The journal of investigative dermatology/Journal of investigative dermatology” This review discusses various methods for processing and separating human skin samples for research purposes, evaluating factors like processing time and cell viability, but reports no new experimental findings.
188 citations
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June 1998 in “Molecular cell” This study found that mimicking the XPD point mutation in mice resulted in trichothiodystrophy-like symptoms, supporting the role of basal transcription and DNA repair defects in the disease.
1 citations
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September 1986 in “Journal of the Forensic Science Society” This study found that hair root sheaths can be accurately typed for erythrocyte acid phosphatase, adenylate kinase, and adenosine deaminase, consistent with blood typing results from the same donors.
3 citations
,
September 2018 in “Journal of Structural Biology” Oxidized trichocyte keratin has a helical dislocation in its structure.
2 citations
,
December 2019 in “Textile Research Journal” This study found that L-cystine-modified rabbit hair fibers had improved dye adsorption and spinnability, due to changes in secondary structure and surface characteristics.
30 citations
,
April 2009 in “Mycoses” This study found that the fungus Microsporum gypseum enzymatically degrades keratin in human hair, with the sequence of degradation reflecting the keratinization and cystine content of individual hair components in vitro.
13 citations
,
February 2024 in “Clinical Cosmetic and Investigational Dermatology” This study demonstrated that intradermal treatment with a medical device using Polynucleotides High Purification Technology (PN HPT) significantly improved skin surface, firmness, pigmentation, and radiance in 30 Asian subjects, with benefits lasting up to six months and no adverse events reported.
2 citations
,
May 2022 in “Research Square (Research Square)” This study demonstrates that the amino-terminally shortened KGF-1 variant with 135 residues maintains biological activity, suggesting it may serve as an alternative to the original KGF-1 for certain therapeutic applications.
51 citations
,
September 2012 in “Biomacromolecules” This study found that disulfide bonds in keratin increase its strength and toughness, with some loss of α-helical structure under load, highlighting their role in trichocyte α-keratin's mechanical properties.
1 citations
,
January 2013 in “PubMed” In this study, treating hair with thioglycolic acid was found to alter disulfide bond patterns in keratin-associated proteins, shifting them from an ellipsoidal to a near-spherical shape.
2 citations
,
January 1993 This study found that human trichohyalin has a unique protein sequence potentially contributing to at least three important functions in hair follicle and epidermal cells.
1 citations
,
January 2021 This study explored non-invasive methods for monitoring low molecular weight biomarkers on the skin's surface, concluding that certain amino acid ratios, such as Phe/Trp, could serve as potential indicators of skin inflammation and cancer.
26 citations
,
June 2010 in “Electrophoresis” This study reported advances in identifying low-abundance proteins in wool by using fractionation techniques to reduce the dominance of intermediate filament proteins, improving the understanding of the wool proteome.
6 citations
,
March 2019 in “Dermatologic surgery” This study found that storing hair follicle grafts in chilled ATPv-supplemented saline was most effective for preserving trichogenic gene expression, compared to other storage solutions and temperatures.
2 citations
,
November 1992 in “Journal of dermatology” This study found that cells isolated from human scalp hair follicles proliferated well in a specific culture medium and possessed keratins characteristic of hair-forming cells.
59 citations
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July 1972 in “Biochemistry” This study investigated the formation of a specific chemical crosslink in hair proteins and explored the role of transamidase enzymes in hair follicles.
71 citations
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June 1993 in “Journal of Investigative Dermatology” This study found that, compared to oxidative treatments, reductive perm-waving more severely impacts the intermediate filaments in European human hair, while both treatments alter denaturation kinetics in a first-order manner.
43 citations
,
July 1994 in “Journal of Cell Science” This study found that the extraction-resistant structures in hair, feathers, and hagfish teeth are due to ε-(γ-glutamyl)lysine cross-linked proteins, emphasizing their role in maintaining the integrity of these materials.
46 citations
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June 2013 in “Journal of structural biology” This study suggests that the mechanical robustness of hair may be enhanced by the binding interactions of keratin-associated proteins, particularly KAP8.1, with intermediate filament proteins.
January 2025 in “Archives of Dermatological Research”