Keratin
Mostrando 13-24 de 345 artigos, teses e dissertações.
-
13. Three-dimensional aspects of superficial disseminated porokeratosis with scanning electron microscopy
The three-dimensional findings of the surface and from a cross section from a case of disseminated superficial porokeratois using scanning electron microscopy are reported. On the surface of the skin, irregular keratin with a serpiginous distribution was seen. A gross aspect of keratin in the hyperkeratotic wall was also observed and compared to the normal a
An. Bras. Dermatol.. Publicado em: 2014-12
-
14. Hydrolysis of insoluble fish protein residue from whitemouth croaker (Micropogonias furnieri) by fungi
A significant amount of insoluble fibrous protein, in the form of feather, hair, scales, skin and others are available as co-products of agro industrial processing. These wastes are rich in keratin and collagen. This study evaluated different fungi for the hydrolysis of insoluble fish protein residues. Proteins resulting from Micropogonias furnieri wastes th
Braz. arch. biol. technol.. Publicado em: 2014-02
-
15. Keratinized versus non-keratinized preputial flap onlay urethroplasty: does it make any difference in the histological analysis? An experimental study in rabbits
Purpose To compare the histological characteristics of keratinized versus non-keratinized onlay island flaps in an experimental rabbit model. Materials and Methods Sixteen male rabbits were randomly allocated into two experimental groups: keratinized and non-keratinized onlay island flaps. A defect was created in the ventral aspect of the penile urethra. I
Int. braz j urol.. Publicado em: 2013-12
-
16. Atividade enzimática de lysobacter sp. isolada de penas de pinguins da Ilha de Rei George, Antártica
Keratinolitic micro-organisms are found in diverse environments, having already been described between fungi and bacteria. Among the microbial enzymes that have been gaining prominence are the keratinases, responsible for the keratin degradation. The aim of this study is to isolate and to identify micro-organisms producing keratinases from decomposing feathe
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/02/2012
-
17. Application of enzymes in leather processing: a comparison between chemical and coenzymatic processes
The use of biotechnology by tanneries has increased in recent years. Enzymes can be applied during different steps of the leather production process: soaking, dehairing, bating, dyeing, degreasing or in effluent and solid waste treatment. This study evaluated the performance of five commercial enzymes in soaking and unhairing/liming by comparing the chemical
Braz. J. Chem. Eng.. Publicado em: 2012-09
-
18. Influência do Gene pacC na Regulação de Manosiltransferases no Dermatófito Trichophyton rubrum em Função de Variações Nutricionais e pH Ambiente. / Influence of Gene pacC in Mannosiltransferase Regulation of the Dermathophyte Trichophyton rubrum in Function to Changes by pH and Nutrient Sources.
Gene expression regulation is essential for fungi to adapt to environmental adversities, such as changes in the extracellular pH, nutrient starvation, ionic strength, and temperature. The adaptive response to ambient pH is well characterized in model fungi such as Aspergillus nidulans, and involves the signal transduction pathway consisting of the products o
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 02/12/2011
-
19. Interaction of Trichomonas vaginalis and Tritrichomonas foetus with keratin: an important role in parasite infection
Trichomonas vaginalis and Tritrichomonas foetus are human and bovine parasites, respectively, that provoke the sexually transmitted disease trichomoniasis. These extracellular parasites adhere to the host epithelial cell surface. Although mucinases and proteases have been described as important proteins for parasite adhesion to epithelial cells, no studies h
Mem. Inst. Oswaldo Cruz. Publicado em: 2011-09
-
20. Hide unhairing and characterization of commercial enzymes used in leather manufacture
The enzymatic treatment of hides in tannery processes is a promising technology. However, the reaction kinetics of commercial enzymes available to the leather industry are not fully understood and their activities have been mainly determined with model proteins such as casein as substrate, which are not of direct relevance for cattle hides. Therefore, it is
Brazilian Journal of Chemical Engineering. Publicado em: 2011-09
-
21. Pleomorphic adenoma with extensive squamous metaplasia and keratin cyst formations in minor salivary gland: a case report
Pleomorphic adenoma (PA), the most common salivary gland tumor, accounts for 54 to 65% of all salivary gland neoplasias and 80% of the benign salivary gland tumors. It most frequently affects the parotid gland, followed by the submandibular and the minor salivary glands. Microscopically, mucous, sebaceous, oncocytic and squamous metaplasia, sometimes with th
Journal of Applied Oral Science. Publicado em: 2011-04
-
22. Increased expression of keratinase and other peptidases by Candida parapsilosis mutants
Keratinases are enzymes of great importance involved in pathogenic processes of some fungi. They also have a widespread ecological role since they are responsible for the degradation and recycling of keratin. On the one hand, studying them furthers our knowledge of pathogenicity mechanisms, which has important implications for human health, and on the other
Braz J Med Biol Res. Publicado em: 2011-03
-
23. Human T-Lymphotropic virus (HTLV) type I in vivo integration in oral keratinocytes
Although the infection of HTLV-1 to cell components of the mouth have been previously reported, there was not until this report, a detailed study to show the characteristics of such infection. From 14 Tropical Spastic Paraparesis/ HTLV-1-Associated Myelopathy (HAM/TSP) patients and 11 asymptomatic carrier individuals (AC) coming from HTLV-1 endemic areas of
Brazilian Journal of Microbiology. Publicado em: 2011-03
-
24. Corneal squamous cell carcinoma in a dog
Background: Squamous cell carcinoma (SCC) is a neoplastic disease of the squamous epithelial cells that has been rarely described in the literature. This neoplasm affects the eyelid, conjunctiva and third eyelid, as well as the cornea. Corneal SCC is a neoplastic lesion characterized by a pink, typically irregular mass protruding from the epithelial surface
Publicado em: 2011