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Article: High-fiber rye bread improves bowel function in postmenopausal women but does not cause other putatively positive changes in the metabolic activity of intestinal microbiota

TitleHigh-fiber rye bread improves bowel function in postmenopausal women but does not cause other putatively positive changes in the metabolic activity of intestinal microbiota
Authors
KeywordsEnterolactone
Fecal Bacterial Enzymes
Humans
Rye Bread
Short-Chain Fatty Acids
Wheat Bread
Issue Date2007
PublisherElsevier Inc. The Journal's web site is located at http://www.elsevier.com/locate/nutres
Citation
Nutrition Research, 2007, v. 27 n. 8, p. 454-461 How to Cite?
AbstractWe have reported previously that rye bread (RB) as a part of the conventional diet affects bowel function and the metabolic activity of the microbiota differently in men and women. Because a higher intake of fiber by men could explain the difference in response, in the present randomized crossover trial, we studied the effects of a RB with increased fiber content vs white wheat bread (WB) in 39 postmenopausal women aged 59 ± 6 years (mean ± SD). The women consumed RB and WB for 8 weeks in random order. The composition of fecal microbiota; activities of bacterial β-glucosidase, β-glucuronidase, and urease; and concentration of short-chain fatty acids in feces, concentration of plasma enterolactone, fecal frequency, and consistency were determined. Mean intakes of dietary fiber were 47 ± 9 and 15 ± 4 g during the RB and WB periods, respectively. Rye bread significantly increased fecal frequency and produced softer stools, and increased the concentration of plasma enterolactone and the activities of β-glucosidase and urease as compared with WB (P < .05). There were no differences in the composition of the fecal microbiota, the activity of β-glucuronidase, and the concentration of short-chain fatty acids in feces between the test bread periods. This study shows that RB in comparison to WB improves bowel function and increases the concentration of plasma enterolactone in postmenopausal women, thus improving bowel health. However, lack of other putatively positive changes observed previously in men consuming RB indicates possible sex differences in the response of colonic microbiota to dietary fiber. © 2007 Elsevier Inc. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/179009
ISSN
2015 Impact Factor: 2.523
2015 SCImago Journal Rankings: 1.171
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorGråsten, SMen_US
dc.contributor.authorJuntunen, KSen_US
dc.contributor.authorMättö, Jen_US
dc.contributor.authorMykkänen, OTen_US
dc.contributor.authorElNezami, Hen_US
dc.contributor.authorAdlercreutz, Hen_US
dc.contributor.authorPoutanen, KSen_US
dc.contributor.authorMykkänen, HMen_US
dc.date.accessioned2012-12-19T09:51:24Z-
dc.date.available2012-12-19T09:51:24Z-
dc.date.issued2007en_US
dc.identifier.citationNutrition Research, 2007, v. 27 n. 8, p. 454-461en_US
dc.identifier.issn0271-5317en_US
dc.identifier.urihttp://hdl.handle.net/10722/179009-
dc.description.abstractWe have reported previously that rye bread (RB) as a part of the conventional diet affects bowel function and the metabolic activity of the microbiota differently in men and women. Because a higher intake of fiber by men could explain the difference in response, in the present randomized crossover trial, we studied the effects of a RB with increased fiber content vs white wheat bread (WB) in 39 postmenopausal women aged 59 ± 6 years (mean ± SD). The women consumed RB and WB for 8 weeks in random order. The composition of fecal microbiota; activities of bacterial β-glucosidase, β-glucuronidase, and urease; and concentration of short-chain fatty acids in feces, concentration of plasma enterolactone, fecal frequency, and consistency were determined. Mean intakes of dietary fiber were 47 ± 9 and 15 ± 4 g during the RB and WB periods, respectively. Rye bread significantly increased fecal frequency and produced softer stools, and increased the concentration of plasma enterolactone and the activities of β-glucosidase and urease as compared with WB (P < .05). There were no differences in the composition of the fecal microbiota, the activity of β-glucuronidase, and the concentration of short-chain fatty acids in feces between the test bread periods. This study shows that RB in comparison to WB improves bowel function and increases the concentration of plasma enterolactone in postmenopausal women, thus improving bowel health. However, lack of other putatively positive changes observed previously in men consuming RB indicates possible sex differences in the response of colonic microbiota to dietary fiber. © 2007 Elsevier Inc. All rights reserved.en_US
dc.languageengen_US
dc.publisherElsevier Inc. The Journal's web site is located at http://www.elsevier.com/locate/nutresen_US
dc.relation.ispartofNutrition Researchen_US
dc.subjectEnterolactoneen_US
dc.subjectFecal Bacterial Enzymesen_US
dc.subjectHumansen_US
dc.subjectRye Breaden_US
dc.subjectShort-Chain Fatty Acidsen_US
dc.subjectWheat Breaden_US
dc.titleHigh-fiber rye bread improves bowel function in postmenopausal women but does not cause other putatively positive changes in the metabolic activity of intestinal microbiotaen_US
dc.typeArticleen_US
dc.identifier.emailElNezami, H: elnezami@hkucc.hku.hken_US
dc.identifier.authorityElNezami, H=rp00694en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1016/j.nutres.2007.05.010en_US
dc.identifier.scopuseid_2-s2.0-34547216790en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-34547216790&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume27en_US
dc.identifier.issue8en_US
dc.identifier.spage454en_US
dc.identifier.epage461en_US
dc.identifier.isiWOS:000248777900002-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridGråsten, SM=6507401051en_US
dc.identifier.scopusauthoridJuntunen, KS=7004611065en_US
dc.identifier.scopusauthoridMättö, J=7003612228en_US
dc.identifier.scopusauthoridMykkänen, OT=17346640500en_US
dc.identifier.scopusauthoridElNezami, H=6603690577en_US
dc.identifier.scopusauthoridAdlercreutz, H=35602505500en_US
dc.identifier.scopusauthoridPoutanen, KS=7004446742en_US
dc.identifier.scopusauthoridMykkänen, HM=7003915985en_US

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