| Blood flow responses in celiac and superior mesenteric arteries in the initial phase of digestion. | |
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MedLine Citation:
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PMID: 18385466 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Blood flow (BF) responses in the celiac artery (CA) and superior mesenteric artery (SMA) during and immediately after a meal are poorly understood. We characterized postprandial BF responses in these arteries in the initial phase of digestion. After a baseline measurement in the overnight fasting state, healthy subjects ingested solid food (300 kcal) and water ad libitum within 5 min (4.6 +/- 0.2 min, means +/- SE), and then rested for 60 min in the postprandial state. Mean blood velocities (MBVs) in CA (n = 7) and SMA (n = 9) and mean arterial pressure (MAP) were measured throughout the procedure. The MAP was divided by the MBV to yield the resistance index (RI). The MBV in CA and SMA started increasing within a minute after beginning the meal. The MBV in CA rapidly reached its peak increase (60 +/- 8% change from baseline) at 5 +/- 1 min after the start of the meal, whereas the MBV in SMA gradually reached its peak increase (134 +/- 14%) at 41 +/- 4 min after the start of the meal, reflecting a decrease in the RI for both CA and SMA. These findings suggested an earlier increase in CA and SMA MBV, implying that the increase of BF in some parts of the small intestine precedes the arrival of chyme. |
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Authors:
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Nami Someya; Masako Yamaoka Endo; Yoshiyuki Fukuba; Naoyuki Hayashi |
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Publication Detail:
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Type: Controlled Clinical Trial; Journal Article; Research Support, Non-U.S. Gov't Date: 2008-04-02 |
Journal Detail:
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Title: American journal of physiology. Regulatory, integrative and comparative physiology Volume: 294 ISSN: 0363-6119 ISO Abbreviation: Am. J. Physiol. Regul. Integr. Comp. Physiol. Publication Date: 2008 Jun |
Date Detail:
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Created Date: 2008-06-04 Completed Date: 2008-07-22 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 100901230 Medline TA: Am J Physiol Regul Integr Comp Physiol Country: United States |
Other Details:
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Languages: eng Pagination: R1790-6 Citation Subset: IM |
Affiliation:
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Institute of Health Science, Kyushu University, Kasuga, Fukuoka, Japan. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Blood Flow Velocity / physiology Celiac Artery / physiology* Digestion / physiology* Female Forearm / blood supply Gastrointestinal Tract / blood supply Humans Male Mesenteric Artery, Superior / physiology* Postprandial Period / physiology Regional Blood Flow / physiology Time Factors |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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