Search for dissertations about: "inositol phosphates"

Showing result 1 - 5 of 10 swedish dissertations containing the words inositol phosphates.

2. 1. Organic phosphorus speciation in environmental samples : Method development and applications

   Author : Julia V. Paraskova; Per J.R. Sjöberg; Emil Rydin; William T. Cooper; Uppsala universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Organic phosphorus; DNA; phospholipids; inositol phosphates; sediment; soil; extraction; liquid chromatography LC ; mass spectrometry MS ; Kemi med inriktning mot analytisk kemi; Chemistry with specialization in Analytical Chemistry;

   Abstract : This thesis investigates the development of new methodology for the identification and quantification of organic phosphorus compounds in environmental samples.Phosphorus is a vital element for primary production and one of the factors contributing to eutrophication. READ MORE

4. 2. Factors Influencing Phytate Degradation in Piglets. Feed phytate behaviour and degradation by microbial phytases

   Author : Katrine Pontoppidan; Chalmers tekniska högskola; []
   Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; pigs; in vitro digestion; P. lycii; inositol phosphates; phytate; phytase;

   Abstract : Phytate, the main storage form of phosphorus (P) in plant feedstuffs, is indigestible for monogastric animals, and phytases are therefore used as feed additives to increase the digestibility of phytate-P and limit the inclusion of inorganic P. However, new and improved phytases are needed to obtain better phytate digestibility and allow for lower inclusions of inorganic P. READ MORE

5. 3. Inositol Phosphates. Ion Chromatography Methods, Intestinal Degradation and Influence on Iron Bioavailability

   Author : Erika Skoglund; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Abstract : Inositol phosphates are presently a topic of intense investigation, owing to their nutritional and physiological importance for plants and animals. This thesis presents new methods for the analysis of inositol mono- to hexaphosphates (IP1-IP6) and their isomers. READ MORE

6. 4. Protein phosphorylation cascades regulating islet beta-cell insulin exocytosis through glucose sensing and drug signaling : with special focus on serine/threonine protein phosphates and hypoglycemic sulfonylureas

   Author : Mikael Lehtihet; Karolinska Institutet; Karolinska Institutet; []
   Keywords : Diabetes; Islet; Insulin; Exocytosis; Protein phosphatase; Protein kinase; CPT-1; Sulfonylurea; Glutamate; Polyphosphoinositide;

   Abstract : In human type 2 diabetes, loss of glucose-sensitive insulin secretion from the pancreatic �-cell is an early pathogenetic event. Initially, this may be compensated for by stimulating insulin secretion by sulfonylurea drugs. READ MORE

7. 5. Intracellular signaling of phosphorylated insitol compounds : a study in pancreatic beta-cells and hippocampal neurons

   Author : Jia Yu; Karolinska Institutet; Karolinska Institutet; []
   Keywords : InsP6; L-type Ca 2 channel; hippocampal neuron; Ins 1; 4; 5 P3; Ca2 ; cyt-MIPP; pancreatic beta-cell; PtdIns 3; 4; 5 P3; Ptdlns 3; 5 P2.;

   Abstract : The family of phosphorylated inositol compounds consists of soluble cytosolic inositol phosphates and insoluble inositol phospholipids, localized in cellular membranes and the nuclear matrix. Although inositol phospholipids only account for 5-10% of total plasma membrane lipids, these compounds and their inositol phosphate derivatives play an important role in a broad range of cellular processes including intracellular Ca 2+ signalling, ion channel regulation, vesicle trafficking, both exo- and endocytosis, cell growth and apoptosis. READ MORE