901 resultados para Intestinal morphometrics
Filtro por publicador
- Aberdeen University (3)
- Acceda, el repositorio institucional de la Universidad de Las Palmas de Gran Canaria. España (3)
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- DI-fusion - The institutional repository of Université Libre de Bruxelles (3)
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- Gallica, Bibliotheque Numerique - Bibliothèque nationale de France (French National Library) (BnF), France (1)
- Helda - Digital Repository of University of Helsinki (34)
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- Indian Institute of Science - Bangalore - Índia (18)
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- Lume - Repositório Digital da Universidade Federal do Rio Grande do Sul (5)
- National Center for Biotechnology Information - NCBI (34)
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- RDBU - Repositório Digital da Biblioteca da Unisinos (2)
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- Repositório Alice (Acesso Livre à Informação Científica da Embrapa / Repository Open Access to Scientific Information from Embrapa) (1)
- Repositório Institucional da Universidade Federal do Rio Grande do Norte (2)
- Repositorio Institucional de la Universidad de El Salvador (3)
- Repositório Institucional UNESP - Universidade Estadual Paulista "Julio de Mesquita Filho" (233)
- Savoirs UdeS : plateforme de diffusion de la production intellectuelle de l’Université de Sherbrooke - Canada (1)
- School of Medicine, Washington University, United States (6)
- Scielo España (6)
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- Universidad Autónoma de Nuevo León, Mexico (3)
- Universidad del Rosario, Colombia (5)
- Universidad Politécnica de Madrid (7)
- Universidade Complutense de Madrid (2)
- Universidade de Lisboa - Repositório Aberto (5)
- Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP) (1)
- Universidade Federal do Pará (7)
- Universidade Federal do Rio Grande do Norte (UFRN) (7)
- Universitat de Girona, Spain (2)
- Universitätsbibliothek Kassel, Universität Kassel, Germany (2)
- Université de Lausanne, Switzerland (3)
- Université de Montréal (3)
- Université de Montréal, Canada (13)
- University of Connecticut - USA (1)
- University of Michigan (4)
- University of Queensland eSpace - Australia (14)
Resumo:
INVESTIGATIONS of intestinal transport of amino-acids in the locust1,2 and silkworm3,4 have shown no evidence for active accumulation in a transport from the insect gut of amino-acids. When glycine-2-14C was administered in vivo to fifth instar larvae of the silkworm, 96 per cent of the radioactivity was incorporated into various tissues within 1 h whereas in vitro only 19 per cent of the activity was transported by the mid-gut of silkworm (unpublished work). These results suggested that continued absorption of glycine by the intestine could be aided by a facilitated diffusion mechanism in which amino-acids are rapidly removed from the site of absorption either by accumulation into other tissues or by degradation. Although the insect fat body has been assigned both accumulatory and dissimilatory roles5, the mechanism of accumulation of amino-acids has not been investigated. Our present experiments show that the silkworm fat body possesses an efficient mechanism for accumulating glycine and that both the accumulation and the release of glycine are metabolically controlled.