PMID- 30619502 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20240506 IS - 1743-7075 (Print) IS - 1743-7075 (Electronic) IS - 1743-7075 (Linking) VI - 15 DP - 2018 TI - An 8-week diet high in cereal fiber and coffee but free of red meat does not improve beta-cell function in patients with type 2 diabetes mellitus: a randomized controlled trial. PG - 90 LID - 10.1186/s12986-018-0324-5 [doi] LID - 90 AB - BACKGROUND: Higher dietary intake of fibers and coffee, but lower red meat intake is associated with reduced risk for type 2 diabetes in epidemiological studies. We hypothesized that a calorie-restricted diet, which is high in fiber and coffee, but free of red meat, improves beta-cell function in patients with T2D. METHODS: In a randomized parallel-group pilot trial, obese type 2 diabetes patients were randomly allocated to consume either a diet high in cereal fiber and coffee, but free of red meat (n = 17) (L-RISK) or a diet low in fiber, free of coffee but high in red meat (n = 20) (H-RISK) for 8 weeks. Insulin secretion was assessed from glucagon stimulation tests (GST) and mixed-meal tolerance tests (MMTT) before and after dietary intervention. RESULTS: Both diets resulted in comparable reduction of fasting concentrations of insulin (H-RISK -28% vs. L-RISK -32%, both p < 0.01), C-peptide (H-RISK -26% vs. L-RISK -30%, both p < 0.01) and blood glucose (H-RISK -6.8%, p < 0.05 vs. L-RISK -10%, p < 0.01). Gastric inhibitory peptide (GIP) secretion increased by 24% after 8 weeks in the L-RISK only (p < 0.01). However, GST and MMTT showed no differences in insulin secretion after intervention. CONCLUSIONS: Calorie restriction independent of the intake of fiber, coffee or meat failed to improve beta-cell function, but improved GIP secretion in obese patients with type 2 diabetes. TRIAL REGISTRATION: Registration at Clinicaltrials.gov, Identifier number: NCT01409330, Registered 4 August 2011 - Retrospectively registered. FAU - Karusheva, Yanislava AU - Karusheva Y AD - 1Institute for Clinical Diabetology, German Diabetes Center, Leibniz Center for Diabetes Research at Heinrich Heine University Dusseldorf, Auf'm Hennekamp 65, 40225 Dusseldorf, Germany. ISNI: 0000 0004 0492 602X. GRID: grid.429051.b AD - German Center for Diabetes Research (DZD), Munchen-Neuherberg, Ingolstadter Landstr. 1, 85764 Neuherberg, Germany. FAU - Kunstein, Lejla AU - Kunstein L AD - 1Institute for Clinical Diabetology, German Diabetes Center, Leibniz Center for Diabetes Research at Heinrich Heine University Dusseldorf, Auf'm Hennekamp 65, 40225 Dusseldorf, Germany. ISNI: 0000 0004 0492 602X. GRID: grid.429051.b AD - German Center for Diabetes Research (DZD), Munchen-Neuherberg, Ingolstadter Landstr. 1, 85764 Neuherberg, Germany. AD - 3Division of Endocrinology and Diabetology, Medical Faculty, Heinrich Heine University Dusseldorf, Dusseldorf, Moorenstr. 5, 40225 Dusseldorf, Germany. ISNI: 0000 0001 2176 9917. GRID: grid.411327.2 FAU - Bierwagen, Alessandra AU - Bierwagen A AD - 1Institute for Clinical Diabetology, German Diabetes Center, Leibniz Center for Diabetes Research at Heinrich Heine University Dusseldorf, Auf'm Hennekamp 65, 40225 Dusseldorf, Germany. ISNI: 0000 0004 0492 602X. GRID: grid.429051.b AD - German Center for Diabetes Research (DZD), Munchen-Neuherberg, Ingolstadter Landstr. 1, 85764 Neuherberg, Germany. FAU - Nowotny, Bettina AU - Nowotny B AD - 1Institute for Clinical Diabetology, German Diabetes Center, Leibniz Center for Diabetes Research at Heinrich Heine University Dusseldorf, Auf'm Hennekamp 65, 40225 Dusseldorf, Germany. ISNI: 0000 0004 0492 602X. GRID: grid.429051.b AD - German Center for Diabetes Research (DZD), Munchen-Neuherberg, Ingolstadter Landstr. 1, 85764 Neuherberg, Germany. FAU - Kabisch, Stefan AU - Kabisch S AD - German Center for Diabetes Research (DZD), Munchen-Neuherberg, Ingolstadter Landstr. 1, 85764 Neuherberg, Germany. AD - Department Clinical Nutrition, German Institute for Nutritional Research (DifE) Potsdam, Bergholz-Rehbrucke, Arthur-Scheunert-Allee 114-1, 14558 Bergholz-Rehbrucke, Germany. AD - 5Department of Endocrinology, Diabetes and Nutrition, Charite Universitatsmedizin Berlin, Campus Benjamin Franklin, Hindenburgdamm 30, 12203 Berlin, Germany. GRID: grid.412753.6 FAU - Groener, Jan B AU - Groener JB AD - 6Department for Internal Medicine I, University Hospital Heidelberg, Im Neuenheimer Feld 410, 69120 Heidelberg, Germany. ISNI: 0000 0001 0328 4908. GRID: grid.5253.1 FAU - Fleitmann, Ann Kristin AU - Fleitmann AK AD - 1Institute for Clinical Diabetology, German Diabetes Center, Leibniz Center for Diabetes Research at Heinrich Heine University Dusseldorf, Auf'm Hennekamp 65, 40225 Dusseldorf, Germany. ISNI: 0000 0004 0492 602X. GRID: grid.429051.b FAU - Herder, Christian AU - Herder C AD - 1Institute for Clinical Diabetology, German Diabetes Center, Leibniz Center for Diabetes Research at Heinrich Heine University Dusseldorf, Auf'm Hennekamp 65, 40225 Dusseldorf, Germany. ISNI: 0000 0004 0492 602X. GRID: grid.429051.b AD - German Center for Diabetes Research (DZD), Munchen-Neuherberg, Ingolstadter Landstr. 1, 85764 Neuherberg, Germany. FAU - Pacini, Giovanni AU - Pacini G AD - 7Metabolic Unit, Institute of Biomedical Engineering, National Research Council, Corso Stati Uniti, 4, 35127 Padova, Italy. ISNI: 0000 0001 1940 4177. GRID: grid.5326.2 FAU - Strassburger, Klaus AU - Strassburger K AD - German Center for Diabetes Research (DZD), Munchen-Neuherberg, Ingolstadter Landstr. 1, 85764 Neuherberg, Germany. AD - 8Institute for Biometrics and Epidemiology, German Diabetes Center, Leibniz Center for Diabetes Research at Heinrich Heine University Dusseldorf, Auf'm Hennekamp 65, 40225 Dusseldorf, Germany. ISNI: 0000 0004 0492 602X. GRID: grid.429051.b FAU - Haring, Hans-Ulrich AU - Haring HU AD - German Center for Diabetes Research (DZD), Munchen-Neuherberg, Ingolstadter Landstr. 1, 85764 Neuherberg, Germany. AD - 9Department of Internal Medicine, Division of Endocrinology, Diabetology, Vascular Medicine, Nephrology and Clinical Chemistry and Institute of Diabetes Research and Metabolic Diseases, University Hospital Tubingen, Otfried-Muller-Strasse 10, 72076 Tubingen, Germany. ISNI: 0000 0001 0196 8249. GRID: grid.411544.1 FAU - Nawroth, Peter P AU - Nawroth PP AD - 6Department for Internal Medicine I, University Hospital Heidelberg, Im Neuenheimer Feld 410, 69120 Heidelberg, Germany. ISNI: 0000 0001 0328 4908. GRID: grid.5253.1 FAU - Pfeiffer, Andreas F H AU - Pfeiffer AFH AD - German Center for Diabetes Research (DZD), Munchen-Neuherberg, Ingolstadter Landstr. 1, 85764 Neuherberg, Germany. AD - Department Clinical Nutrition, German Institute for Nutritional Research (DifE) Potsdam, Bergholz-Rehbrucke, Arthur-Scheunert-Allee 114-1, 14558 Bergholz-Rehbrucke, Germany. AD - 5Department of Endocrinology, Diabetes and Nutrition, Charite Universitatsmedizin Berlin, Campus Benjamin Franklin, Hindenburgdamm 30, 12203 Berlin, Germany. GRID: grid.412753.6 FAU - Burkart, Volker AU - Burkart V AD - 1Institute for Clinical Diabetology, German Diabetes Center, Leibniz Center for Diabetes Research at Heinrich Heine University Dusseldorf, Auf'm Hennekamp 65, 40225 Dusseldorf, Germany. ISNI: 0000 0004 0492 602X. GRID: grid.429051.b AD - German Center for Diabetes Research (DZD), Munchen-Neuherberg, Ingolstadter Landstr. 1, 85764 Neuherberg, Germany. FAU - Mussig, Karsten AU - Mussig K AD - 1Institute for Clinical Diabetology, German Diabetes Center, Leibniz Center for Diabetes Research at Heinrich Heine University Dusseldorf, Auf'm Hennekamp 65, 40225 Dusseldorf, Germany. ISNI: 0000 0004 0492 602X. GRID: grid.429051.b AD - German Center for Diabetes Research (DZD), Munchen-Neuherberg, Ingolstadter Landstr. 1, 85764 Neuherberg, Germany. AD - 3Division of Endocrinology and Diabetology, Medical Faculty, Heinrich Heine University Dusseldorf, Dusseldorf, Moorenstr. 5, 40225 Dusseldorf, Germany. ISNI: 0000 0001 2176 9917. GRID: grid.411327.2 FAU - Roden, Michael AU - Roden M AD - 1Institute for Clinical Diabetology, German Diabetes Center, Leibniz Center for Diabetes Research at Heinrich Heine University Dusseldorf, Auf'm Hennekamp 65, 40225 Dusseldorf, Germany. ISNI: 0000 0004 0492 602X. GRID: grid.429051.b AD - German Center for Diabetes Research (DZD), Munchen-Neuherberg, Ingolstadter Landstr. 1, 85764 Neuherberg, Germany. AD - 3Division of Endocrinology and Diabetology, Medical Faculty, Heinrich Heine University Dusseldorf, Dusseldorf, Moorenstr. 5, 40225 Dusseldorf, Germany. ISNI: 0000 0001 2176 9917. GRID: grid.411327.2 FAU - Szendroedi, Julia AU - Szendroedi J AUID- ORCID: 0000-0002-5185-8168 AD - 1Institute for Clinical Diabetology, German Diabetes Center, Leibniz Center for Diabetes Research at Heinrich Heine University Dusseldorf, Auf'm Hennekamp 65, 40225 Dusseldorf, Germany. ISNI: 0000 0004 0492 602X. GRID: grid.429051.b AD - German Center for Diabetes Research (DZD), Munchen-Neuherberg, Ingolstadter Landstr. 1, 85764 Neuherberg, Germany. AD - 3Division of Endocrinology and Diabetology, Medical Faculty, Heinrich Heine University Dusseldorf, Dusseldorf, Moorenstr. 5, 40225 Dusseldorf, Germany. ISNI: 0000 0001 2176 9917. GRID: grid.411327.2 LA - eng SI - ClinicalTrials.gov/NCT01409330 PT - Journal Article DEP - 20181229 PL - England TA - Nutr Metab (Lond) JT - Nutrition & metabolism JID - 101231644 PMC - PMC6311026 OTO - NOTNLM OT - Beta-cell function OT - Calorie restriction OT - Coffee OT - Dietary fiber OT - Red meat COIS- The study was performed according to the Declaration of Helsinki, approved by the ethics committee of the Medical Faculty of Heinrich Heine University Dusseldorf. All participants gave written informed consent before inclusion in the study.All authors have seen and approved the manuscript being submitted.The authors declare that they have no competing interests.Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations. EDAT- 2019/01/09 06:00 MHDA- 2019/01/09 06:01 PMCR- 2018/12/29 CRDT- 2019/01/09 06:00 PHST- 2018/05/30 00:00 [received] PHST- 2018/11/29 00:00 [accepted] PHST- 2019/01/09 06:00 [entrez] PHST- 2019/01/09 06:00 [pubmed] PHST- 2019/01/09 06:01 [medline] PHST- 2018/12/29 00:00 [pmc-release] AID - 324 [pii] AID - 10.1186/s12986-018-0324-5 [doi] PST - epublish SO - Nutr Metab (Lond). 2018 Dec 29;15:90. doi: 10.1186/s12986-018-0324-5. eCollection 2018.