Glycine absorption from the small intestines of rats after secondary infections withEimeria nieschulzi

Summary A second (challenge) infection ofEimeria nieschulzi in clinically immune rats did not produce weight gain depression but caused a decrease in the absorption of glycine from the ileum. The malabsorption due to challenge was equivalent to that caused by the primary infection which did cause weight loss.     

Absorption ofL-lysine in the small intestine of rats

Zusammenfassung l-Lysin wird durch die Rattendarmschleimhaut mit einer je nach den Anfangskonzentrationen verschiedenen Geschwindigkeit absorbiert. Die anfänglichen Lysin-konzentrationen stellen beim Transport der Diaminosäure durch die Darmvilli ein die Reaktionen abschwächendes Moment dar.     

Glycine absorption from the small intestines of rats after secondary infections with Eimeria nieschulzi

A second (challenge) infection of Eimeria nieschulzi in clinically immune rats did not produce weight gain depression but caused a decrease in the absorption of glycine from the ileum. The malabsorption due to challenge was equivalent to that caused by the primary infection which did cause weight loss.     

Suppression of phytohemagglutinin induced splenocyte proliferation during concurrent infection withEimeria nieschulzi andNippostrongylus brasiliensis

Summary Results suggest that infection withEimeria nieschulzi (Protozoa) interferes with splenocyte proliferation induced by infection withNippostrongylus brasiliensis (Nematoda).This study was supported by NIH MBRS Grant RR08012-15.     

Purification and partial characterization of lysozyme from mouse small intestine

Summary Lysozyme was isolated from the small intestine of mice by combined ion-exchange and molecular sieve chromatography. This lysozyme differs from that isolated from the urine of mice with monocytoma in amino acid composition, and migration rate in cellulose acetate electrophoresis. As intestinal lysozyme originates at least in part from the Paneth cell, our results point towards the existence of isozymes of lysozymes in mice.Acknowledgments. Supported by grant No. 20159 from the Fonds voor Wetenschappelijk Geneeskundig Onderzoek, Brussel, Belgium. We should like to thank Mrs.Parein for skillful technical assistance.     

Multiple neutral amino acid transport systems in chicken small intestine: Evidence for a separate proline transfer agency

Zusammenfassung Die Darmresorption von Prolin, Alanin,-Alanin, Sarkosin und Taurin bei Hühnern wurde in vitro untersucht und ein spezielles Resorptions-system für Prolin beschrieben.

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This investigation was supported by a grant fromthe Maine Agricultural Experiment Station (Hatch Project No. 880-H241). Part of this work was taken from the Ph. D. thesis of P.B.     

Inhibitory influence of ligation of the small intestine on gastric secretion in the pylorus-ligated rats

Résumé La ligature de l'intestin, particulièrement du duodénum, gêne la sécrétion gastrique chez le Rat à pylore lié avec ou sans fistule fine.     

Synapses in the rat stomach and small intestine

Riassunto Nel plesso mienterico dello stomaco e dell'intestino tenue di ratto si osservano tipiche giunzioni sinaptiche sia axo-somatiche sia axo-dendritiche. Il numero di contatti sinaptici per unità di superficie di sezione o per cellula nervosa è piÚ di sei volte maggiore nello stomaco che nell'intestino tenue.     

A new biopsy-tube for the small intestine

Zusammenfassung Beschreibung einer neuen Sonde, die sich für Dünndarmbiopsie eignet und bei der die verschiedenen Vorgänge bei der Biopsie einzeln reguliert werden können. Es wird über Ergebnisse bei 28 Patienten berichtet, wobei keinerlei Komplikationen auftraten. In jedem dieser Fälle konnte eine histologische Wertung durchgeführt werden.

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Supported by the Consiglio Nazionale delle Ricerche, Roma.     

Absorption of glycine,L-alanine and L-phenylalanine in the midgut of the larvae ofBombyx mori

Summary A net absorption of glycine, L-alanine and L-phenylalanine occurs across the isolated midgut of the larvae ofBombyx mori. Although glycine and L-phenylalanine are not metabolized, L-alanine is converted by the midgut and has a metabolic effect on the transepithelial electrical potential difference of the tissue.Acknowledgments. We are very much indebted to Prof. V. Capraro for helpful advice and criticism. We are also grateful to Prof. G. Reali for his interest and support of this research.     

Insulin resistance and related electrical activity of the small intestine

Summary Postprandial disruption of the migrating myoelectric complex is of longer duration in obese hyperinsulemic Zucker rats than in control rats. No postprandial disruption was seen in an insulin resistant dog. This gives further support to a major role for insulin in control of gut activity.     

Changes in proline and hydroxyproline in collagens during the development of rats

Zusammenfassung Durch Bestimmung des Prolin- und Hydroxyprolingehaltes in unlösbarem Kollagen und in den gesamten Kollagenen der Lunge von Ratten verschiedenen Alters wurde bewiesen, dass in der frühen postnatalen Epoche der Ratte (bis zu 30 Tagen) die Menge des Hydroxyprolins im Kollagen eindeutig steigt, während sich die Menge des Prolins praktisch nicht ändert.     

Sodium pumps and galactose transfer in the short-circuited small intestine

Summary In a short-circuited preparation of rat jejunum, there are two sodium pumps, one electrogenic and the other neutral. When energy sources are limited, the total sodium transfer is limited. In the presence of a non-metabolized actively transferred hexose, the electrogenic pump is preferentially used. The neutral sodium pump is only able to function when additional energy is available.     

Transport of thiamine by the small intestine in vitro

Riassunto È stato studiato il trasporto in vitro della tiamina con la tecnica dei sacchetti intestinali rovesciati di ratto. Usando una concentrazione di tiamina molto bassa (0.21 µM/l) si dimostra il passaggio della vitamina contro gradiente di concentrazione. L'impiego di inibitori metabolici e di analoghi strutturali della tiamina conferma l'esistenza di un trasporto attivo. In particolare l'inibizione del trasporto da parte della sola piritiamina, noto inibitore della tiaminochinasi intestinale, suggerisce la possibilità che alla base del meccanismo di trasporto della tiamina vi sia la sua fosforilazione.