Results: 35

Fungal decomposition of chicken-feather waste in submerged and solid-state fermentation

Braz. j. biol; 83 (), 2023
Abstract Poultry industry is expanding rapidly and producing million tons of feather waste annually. Massive production of keratinaceous byproducts in the form of industrial wastes throughout the world necessitates its justified utilization. Chemical treatment of keratin waste is proclaimed as an eco-des...

The effect of androgen on wool follicles and keratin production in Hetian sheep

Braz. j. biol; 81 (3), 2021
Abstract To investigate the optimal androgen concentration for culturing Hetian sheep wool follicle and to detect effects of androgen concentration on wool follicle cell proliferation and apoptosis using immunofluorescence labeling and real-time quantitative fluorescence determinations of wool keratin-as...

Analysis of the green turtle esophagus Chelonia mydas (Linnaeus, 1758), Testudines, Cheloniidae

Int. j. morphol; 37 (4), 2019
The esophagus is a muscular tube whose function is to transport food from the mouth to the stomach and basically contain the same layers as the rest of the digestive tract. The morphological knowledge of structures involved in basic physiological processes in organisms is extremely important in the acqui...

Acroqueratoelastoidosis de Costa: reporte de un caso esporádico

Med. U.P.B; 38 (2), 2019
La acroqueratoelastoidosis de Costa es una rara genodermatosis autosómica dominante con expresividad variable, que se caracteriza por la presencia de múltiples pápulas hiperqueratósicas en la zona marginal de las manos, los pies o ambas. Debuta predominantemente en la niñez y vida adulta temprana, e...

Cisto epidermoide no assoalho da boca: relato de caso

Introdução: Os cistos epidermoides são anomalias de desenvolvimento incomum na região de cabeça e pescoço. Possuem um crescimento lento progressivo, podendo atingir grandes proporções, contendo queratina em seu interior. A teoria mais aceita sobre a origem desses cistos afirma que eles são deriv...

Padronização de multiplex PCR para detecção de dermatófitos em pelos e crostas de cães e gatos

Pesqui. vet. bras; 38 (9), 2018
Objetivou-se padronizar uma reação do tipo multiplex PCR (mPCR) para detectar Microsporum canis, Microsporum gypseum e o complexo Trichophyton mentagrophytes em amostras de pelos e/ou crostas de cães e gatos. 250 amostras de pelos e/ou crostas de cães e gatos foram analisadas por meio de exame direto...

Imunomarcação da transição epitélio-mesenquima na neoplasia mamária primária de cadelas e sua metástase em linfonodo

Pesqui. vet. bras; 37 (12), 2017
Os carcinomas mamários em cães apresentam alta capacidade metastática o que confere menor sobrevida para os pacientes com este tipo de neoplasia. O fenótipo transição epitélio-mesênquima, caracterizado pela troca dos filamentos intermediários de citoqueratina por vimentina, além da perda da pro...

Degradation of keratin substrates by keratinolytic fungi

Background: The hydrolysis of keratin wastes by microorganisms is considered a biotechnological alternative for recycling and valorization through keratinolytic microorganisms. Despite their resistant structure, keratin wastes can be efficiently degraded by various microorganisms through the secretion of...

Detection of occult lymph node tumor cells in node-negative gastric cancer patients

ABCD (São Paulo, Impr.); 30 (1), 2017
ABSTRACT Background: The presence of lymph nodes metastasis is one of the most important prognostic indicators in gastric cancer. The micrometastases have been studied as prognostic factor in gastric cancer, which are related to decrease overall survival and increased risk of recurrence. However, their...

Role of keratinocytes in wound contraction: an impact assessment using a model of collagen matrix populated with fibroblasts

Rev. bras. cir. plást; 26 (3), 2011
BACKGROUND: The possible participation of keratinocytes in wound remodeling has been widely studied. This study investigated the impact of keratinocytes in wound contraction. METHODS: Murine type I collagen gels populated by human fibroblasts and seeded with human keratinocytes on the surface to form a d...