About 3 cases of kerato-cysts of the jaws and observed in the same family, the authors wonder wether any familial aetiology is possible. Clinic and para-clinic examination allowed to eliminate a Gorlin's syndrome.
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Food Chem
December 2024
Department of Food Chemistry, Technology and Biotechnology, Faculty of Chemistry, Gdańsk University of Technology, Gdańsk, Narutowicza Street 11/12, 80-233, Poland. Electronic address:
This study compared the effectiveness of urea-containing and urea-free L-cysteine solutions in extracting high-quality feather keratin and evaluated commercial proteases for producing keratin-derived bioactive peptides. The urea-assisted extraction was crucial for achieving high structural integrity and yield of soluble keratin. The keratin isolate exhibited oil-holding capacity of 9.
View Article and Find Full Text PDFEndocr Pathol
January 2025
Department of Pathology, Istanbul Faculty of Medicine, Istanbul University, Millet Caddesi, Fatih, Istanbul, 34093, Turkey.
Merkel cell carcinoma (MCC) is diagnosed through histopathological and immunohistochemical examination of biopsies from skin or other organs. Its distinguishing features include perinuclear dot-like staining with Cytokeratin 20 (CK20) and detection of Merkel cell polyomavirus (MCPyV) using various methods. However, CK20 and MCPyV negative MCC cases have been reported at varying rates.
View Article and Find Full Text PDFAnat Rec (Hoboken)
January 2025
Muséum national d'Histoire naturelle, Centre de Recherche en Paléontologie-Paris (CR2P), UMR 7207 MNHN/CNRS/UPMC, Sorbonne Université, Paris, France.
Pangolins are the most heavily trafficked mammals in the world, largely because of the high demand for their keratinous scales from the traditional Chinese medicine market. While seizures of pangolin material are largely composed of isolated scales, efficient approaches to reach species-level identification are missing. This mostly originates from the lack of comparative studies on the shape of pangolin scales, resulting in knowledge gaps on the imbricated effects of serial, ontogenetic, and evolutionary variations.
View Article and Find Full Text PDFInt J Biol Macromol
January 2025
College of Life Science, Northwest A&F University, Yangling 712100, China. Electronic address:
Amycolatopsis sp. BJA-103 was isolated for its exceptional feather-degradation capability, leading to the purification, cloning, and heterologous expression of the keratinase enzyme, KER0199. Sequence analysis places KER0199 within the S8 protease family, revealing <60 % sequence similarity to known proteases.
View Article and Find Full Text PDFThis case report introduced a new technique to manage buccal deep isolated recession with loss of keratinized tissue. This technique is indicated where there is a good amount of keratinized tissue lateral to the defect and deep vestibule. In this case report, a 27-year-old male patient was referred to a periodontal surgery clinic for the management of an 8 mm buccal recession with loss of keratinized tissue related to auto-transplanted maxillary molar that caused discomfort to the patient.
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