Sökning: "gastric ph"

Visar resultat 6 - 10 av 49 avhandlingar innehållade orden gastric ph.

1. 6. Helicobacter pylori and Gastric Protection Mechanisms : An in vivo Study in Mice and Rats

   Författare :Johanna Henriksnäs; Lena Holm; Lars Engstrand; Erik Persson; Lars Fändriks; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Physiology; mucus gel layer; mucosal blood flow; mucus thickness; intra-vital microscopy; laser-Doppler flowmetry; pH-sensitive microelectrode; nitric oxide; Helicobacter pylori; bicarbonate secretion; mouse model; Fysiologi; Physiology; Fysiologi;

   Sammanfattning : The stomach is frequently exposed to hazardous agents and to resist this harsh environment, several protective mechanisms exist. Of special interest is the gastric pathogen Helicobacter pylori which causes gastritis, ulcers and cancer but the mechanism leading to these diseases are still unclear. However it is very likely that H. LÄS MER

3. 7. Acid transport through gastric mucus : A study in vivo in rats and mice

   Författare :Mia Phillipson; Lena Holm; Henrik Sjövall; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Physiology; gastric acid; pH-sensitive microelectrode; mucus; mucosal blood flow; nitric oxide; intravital microscopy; laser Doppler flowmetry; Fysiologi; Physiology; Fysiologi; Physiology; fysiologi;

   Sammanfattning : The gastric mucosa is frequently exposed to endogenously secreted hydrochloric acid of high acidity. Gastric mucosal defense mechanisms are arranged at different levels of the gastric mucosa and must work in unison to maintain its integrity. LÄS MER

4. 8. Gastrointestinal Physiology and Results following Bariatric Surgery

   Författare :Jakob Hedberg; Magnus Sundbom; Näslund Erik; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Bariatric surgery; gastric bypass; biliopancreatic diversion with duodenal switch; PYY; stomal ulcer; gastric emptying; Surgery; Kirurgi; Kirurgi; Surgery;

   Sammanfattning : The number of operations for morbid obesity is rising fast. We have examined aspects of postoperative physiology and results after bariatric surgery. The pH in the proximal pouch after Roux-en-Y gastric bypass (RYGBP) was investigated with catheter-based and wire-less technique. LÄS MER

5. 9. Helicobacter pylori : multitalented adaptation of binding properties

   Författare :Sara Henriksson; Thomas Borén; Göran Larson; Umeå universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Helicobacter pylori; adherence; receptor specificity; adaptation; pH; BabA; Leb; recombination; secretor phenotype; recombinant cell lines;

   Sammanfattning : Helicobacter pylori infects and persistently colonizes the stomach, which results in gastritis and in some individuals peptic ulcer disease or gastric cancer. Adherence of H. pylori to the epithelium is an important factor for development of disease. LÄS MER

7. 10. Formulation and characterization of W/O nano-dispersions for bioactive delivery applications

   Författare :Maria D. Chatzidaki; Aris Xenakis; Bert van Bavel; Werner Kunz; Örebro universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; nano-dispersions; encapsulation; food; DLS; EPR; Cryo-TEM; SAXS; pH-stat; digestion; antioxidants; gastric lipase; pancreatic lipase; Kemi; Chemistry;

   Sammanfattning : The main objective of this study was the formulation of food-grade water-in-oil (W/O) nano-dispersions based mainly on medium or long-chain triglycerides. Two types of dispersions were formulated and structurally compared, namely emulsions and microemulsions. LÄS MER