Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: EC:3.2.1.26 (invertase)
 4,927 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The combined effects on the intestinal cells of guinea pigs following feeding them with lathyrus and manganese (Mn) for 90 days were studied in this investigation. Guinea pigs given Mn (4 ppm of their diets) for 90 days showed no change in either intestinal bioconstituents or marker enzymes, with the exception of gamma-glutamyl transpeptidase (GGT) and quinone reductase (QR). Exposure to a diet of 80% lathyrus only resulted in significant (p <. 05) inhibition of intestinal alkaline phosphatase (ALP), sucrase, GGT, QR, and glutathione-s-transferase (GST) along with significant (p <. 05) depletion of total hexose and phospholipids. Animals given lathyrus and Mn showed a significant (p <. 05) decrease in intestinal ALP, Ca +2 Mg +2 -ATPase, sucrase, GGT, GST, and QR along with significant (p <. 05) depletion in total hexose and phospholipids and concomitant enhancement in cholesterol when compared to controls. The data clearly indicate that combined treatment with lathyrus and Mn potentiates intestinal toxicity more than does Mn or lathyrus alone.
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PMID:Toxic Interaction of Lathyrus sativus and Manganese in Guinea Pig Intestine. 2002 Nov 54

The present study was conducted to test the hypothesis that dietary supplementation with a nano chitosan-zinc complex (CP-Zn, 100 mg/kg zinc) could alleviate weaning stress in piglets challenged with ETEC K88 by improving growth performance and intestinal antioxidant capacity. The in vivo effects of CP-Zn on growth performance variables (including gastrointestinal digestion and absorption functions and the levels of key proteins related to muscle growth) and the antioxidant capacity of the small intestine were evaluated in 72 weaned piglets. The porcine jejunal epithelial cell line IPEC-J2 was used to further investigate the antioxidant mechanism of CP-Zn in vitro. The results showed that CP-Zn supplementation increased the jejunal villus height and decreased the diarrhoea rate in weaned piglets. CP-Zn supplementation also improved growth performance (ADG and ADFI), increased the activity of carbohydrate digestion-related enzymes (amylase, maltase, sucrase and lactase) and the mRNA expression levels of nutrient transporters (SGLT1, GLUT2, PEPT1 and EAAC1) in the jejunum, and upregulated the expression levels of mTOR pathway-related proteins (IRS1, phospho-mTOR and phospho-p70S6K) in muscle. In addition, CP-Zn supplementation increased glutathione content, enhanced T-SOD and GSH-px activity, and reduced MDA content in the jejunum. Furthermore, CP-Zn decreased the content of MDA and ROS, enhanced the activity of T-SOD and GSH-px, and upregulated the expression levels of Nrf2 pathway-related proteins (Nrf2, NQO1 and HO1) in LPS-stimulated IPEC-J2 cells. Collectively, these findings indicate that CP-Zn supplementation can improve growth performance and the antioxidant capacity of the small intestine in piglets, thus alleviating weaning stress.
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PMID:Nano chitosan-zinc complex improves the growth performance and antioxidant capacity of the small intestine in weaned piglets. 3325 56