| Effect of high oral doses of nitrate on salivary recirculation of nitrates and nitrites and on bacterial diversity in the saliva of young pigs. | |
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MedLine Citation:
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PMID: 20796080 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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Ingested nitrate is absorbed in the small intestine, recirculated into the saliva and reduced to nitrite by oral bacteria. In pigs receiving a moderate dietary addition of nitrate, the recirculation into the saliva is modest, so we aimed to assess the effect of higher nitrate doses to find out how the animal reacts to this new situation and to evaluate if a higher nitrate level could enhance the nitrate reduction process, improving the nitrite production Trial 1. Six piglets received 100 g of a commercial diet with 2.45% KNO(3) . In relation to baseline values, nitrate in blood serum and saliva increased 15 times, and declined after 6 h vs. 2 h. Salivary nitrite increased seven times after the addition and declined after 6 h vs. 2 h. Trial 2. Six piglets were fed a diet with or without 1.22% KNO(3) for 2 weeks. Salivary nitrate and nitrite increased with the addition of KNO3: nitrate increased from d0 to the end of the trial, nitrite increased 15 times after 1 week, but decreased after 2 weeks to 4.5-fold the control. After 2 weeks, nitrate reduced Shan diversity index of salivary microbiota. The present results indicate that the long exposure to high quantities of nitrates impairs the oral reduction of nitrate to nitrite and engenders a reduction of the mouth's microbiota diversity. |
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Authors:
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P Trevisi; L Casini; I Nisi; S Messori; P Bosi |
Publication Detail:
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Type: Journal Article Date: 2010-08-27 |
Journal Detail:
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Title: Journal of animal physiology and animal nutrition Volume: 95 ISSN: 1439-0396 ISO Abbreviation: J Anim Physiol Anim Nutr (Berl) Publication Date: 2011 Apr |
Date Detail:
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Created Date: 2011-03-09 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101126979 Medline TA: J Anim Physiol Anim Nutr (Berl) Country: Germany |
Other Details:
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Languages: eng Pagination: 206-13 Citation Subset: IM |
Copyright Information:
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© 2010 Blackwell Verlag GmbH. |
Affiliation:
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DIPROVAL, University of Bologna, Reggio Emilia, Italy. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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