Dissolution Media Simulating Conditions in the Proximal Human Gastrointestinal Tract: An Update

2008 ◽  
Vol 25 (7) ◽  
pp. 1663-1676 ◽  
Author(s):  
Ekarat Jantratid ◽  
Niels Janssen ◽  
Christos Reppas ◽  
Jennifer B. Dressman
Keyword(s):  
Gastrointestinal Tract ◽  
Human Gastrointestinal Tract

Distribution of Serotonin (5-Hydroxytryptamine) in the Human Gastrointestinal Tract

1961 ◽  
Vol 41 (2) ◽  
pp. 119-121 ◽  
Author(s):  
Robert H. Resnick ◽  
Seymour J. Gray
Keyword(s):  
Gastrointestinal Tract ◽  
Human Gastrointestinal Tract

The Design of a Hydraulic Suction Tube for Peroral Biopsy of the Human Gastrointestinal Tract

1962 ◽  
Vol 42 (3) ◽  
pp. 281-284 ◽  
Author(s):  
Wayne E. Quinton ◽  
Arnold L. Flick ◽  
Cyrus E. Rubin
Keyword(s):  
Gastrointestinal Tract ◽  
Human Gastrointestinal Tract ◽  
Suction Tube

The Host Genotype Affects the Bacterial Community in the Human Gastrointestinal Tract

2001 ◽  
Vol 13 (3) ◽  
Author(s):  
Erwin G. Zoetendal ◽  
Antoon D. L. Akkermans ◽  
Wilma M. Akkermans-van Vliet ◽  
J. Arjan G. M. De Visser ◽  
Willem M. De Vos
Keyword(s):  
Gastrointestinal Tract ◽  
Bacterial Community ◽  
Human Gastrointestinal Tract ◽  
Host Genotype

Food-grade titanium dioxide particles decrease the bioaccessibility of iron released from spinach leaves in simulated human gastrointestinal tract

2021 ◽  
Author(s):  
Chunyang Li ◽  
Chuanxin Ma ◽  
Heping Shang ◽  
Jason C. White ◽  
David Julian McClements ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Gastrointestinal Tract ◽  
Amylase Activity ◽  
Human Gastrointestinal Tract ◽  
Food Grade ◽  
Spinach Leaves

E171 reduced Fe bioaccessibility of spinach in a simulated gastrointestinal tract via two mechanisms: the inhibition of α-amylase activity and adsorption of released Fe from spinach.

Expression of neuronal no synthase in the human gastrointestinal tract

1995 ◽  
Vol 108 (4) ◽  
pp. A623
Author(s):  
M. John ◽  
B. Schätzmüller ◽  
A. Schmitt-Graeff ◽  
C. Ransco ◽  
H. Buhr ◽  
...  
Keyword(s):  
Gastrointestinal Tract ◽  
No Synthase ◽  
Human Gastrointestinal Tract ◽  
Neuronal No Synthase

Distribution of the intermediate filament nestin in the muscularis propria of the human gastrointestinal tract

2002 ◽  
Vol 309 (2) ◽  
pp. 261-268 ◽  
Author(s):  
Jean-Marie Vanderwinden ◽  
Karine Gillard ◽  
Conrad Messam ◽  
Serge Schiffmann ◽  
Marc-Henri De Laet
Keyword(s):  
Gastrointestinal Tract ◽  
Intermediate Filament ◽  
Muscularis Propria ◽  
Human Gastrointestinal Tract

scholarly journals Procyanidins are not bioavailable in rats fed a single meal containing a grapeseed extract or the procyanidin dimer B3

2002 ◽  
Vol 87 (4) ◽  
pp. 299-306 ◽  
Author(s):  
Jennifer L. Donovan ◽  
Adam Lee ◽  
Claudine Manach ◽  
Laurent Rios ◽  
Christine Morand ◽  
...  
Keyword(s):  
Gastrointestinal Tract ◽  
Urinary Excretion ◽  
Ring Structure ◽  
Future Research ◽  
Human Gastrointestinal Tract ◽  
Human Diet ◽  
Single Meal ◽  
Nutritional Effects ◽  
Grapeseed Extract

Flavanols are the most abundant flavonoids in the human diet where they exist as monomers, oligomers and polymers. In the present study, catechin, the procyanidin dimer B3 and a grapeseed extract containing catechin, epicatechin and a mixture of procyanidins were fed to rats in a single meal. After the meals, catechin and epicatechin were present in conjugated forms in both plasma and urine. In contrast, no procyanidins or conjugates were detected in the plasma or urine of any rats. Procyanidins were not cleaved into bioavailable monomers and had no significant effects on the plasma levels or urinary excretion of the monomers when supplied together in the grapeseed extract. We conclude that the nutritional effects of dietary procyanidins are unlikely to be due to procyanidins themselves or monomeric metabolites with the intact flavonoid-ring structure, as they do not exist at detectable concentrations in vivo. Future research should focus on other procyanidin metabolites such as phenolic acids and on the effects of the unabsorbed oligomers and polymers on the human gastrointestinal tract.

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