- ICH GCP
- US Clinical Trials Registry
- Klinisk utprøving NCT03224533
Walnut Consumption and Diabetes Risk
19. juli 2017 oppdatert av: Lenore Arab, PhD, University of California, Los Angeles
Association Between Walnut Consumption and Diabetes Risk in NHANES May be Gender Sex Specific
Multiple NHANES surveys were combined and weighted to evaluate relationships between walnut consumption and type 2 diabetes mellitus using various independent measures of diabetes status and risk.
After risks were ascertained, interactions with gender were analyzed.
Studieoversikt
Detaljert beskrivelse
Background.
Dietary interventions and cohort studies of tree nuts lowering glucose levels for diabetes suggest a possible effect with walnuts.
Objective.
To examine the associations between walnut consumption and diabetes risk through data from the National Health and Nutrition Examination Survey (NHANES).
Methods.
NHANES survey data for 1999 through 2014 was pooled for adults with 24 hour recall dietary data.
Risk of diabetes was based on self-report, medication use, fasting plasma glucose levels, and hemoglobin A1c (HbA1c) levels.
Individuals were characterized as reporting consumption of walnuts, mixed 'nuts', or no nuts.
Studietype
Observasjonsmessig
Registrering (Faktiske)
34121
Kontakter og plasseringer
Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.
Studiesteder
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-
California
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Los Angeles, California, Forente stater, 90095
- University of California Los Angeles
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Deltakelseskriterier
Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.
Kvalifikasjonskriterier
Alder som er kvalifisert for studier
18 år til 80 år (Voksen, Eldre voksen)
Tar imot friske frivillige
Ja
Kjønn som er kvalifisert for studier
Alle
Prøvetakingsmetode
Sannsynlighetsprøve
Studiepopulasjon
The National Health and Nutrition Examination Survey (NHANES) is a cross-sectional, probability survey administered to the US civilian population aged from 0 to 85 years.
This study used continuous NHANES data collected from 1999 to 2014, covering eight cycles of data collection (N=82,091).
Participants were excluded from analysis for being under 18 (N=34,735) and not having data on either day of the 24-hour food intake (N=6,533).
In an attempt to have a control group free of nut consumers, individuals who consumed peanuts, but not other nuts on the day of recall, were excluded from the analysis (N=6,702).
After exclusions, our analytic sample N was 34,121, representing a population size of approximately 176 million individuals.
Beskrivelse
Inclusion Criteria:
- NHANES data from 1999-2014 with food recalls and dietary food intake
Exclusion Criteria:
- not having data on either day of the 24-hour food intake
- individuals who consumed peanuts, but not other nuts on the day of recall, were excluded from the analysis
Studieplan
Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.
Hvordan er studiet utformet?
Designdetaljer
Kohorter og intervensjoner
Gruppe / Kohort |
Intervensjon / Behandling |
---|---|
No Nuts
All other foods that did not include walnuts or other nuts were classified as "no nuts" (NN).
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based on self report definition, fasting plasma glucose, and hemoglobin A1c
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Other Nuts
Foods codes describing nuts that are not walnuts (i.e.
cashew nuts, pistachios, etc.) or nut-containing foods that do not commonly contain walnuts (e.g.
granola) were classified as "other nuts" (ON).
|
based on self report definition, fasting plasma glucose, and hemoglobin A1c
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Walnuts with other nuts
food codes describing nut mixes and foods that commonly include walnuts were classified as "walnuts with other nuts" (WwON)
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based on self report definition, fasting plasma glucose, and hemoglobin A1c
|
Walnuts with high certainty
Foods consisting entirely or mostly of walnuts were classified as "walnuts with high certainty" (WwHC)
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based on self report definition, fasting plasma glucose, and hemoglobin A1c
|
Hva måler studien?
Primære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
---|---|---|
Diabetes Outcome- self report
Tidsramme: 1999-2014
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Based on self-report as told by a doctor
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1999-2014
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Diabetes Outcome- Fasting Plasma Glucose
Tidsramme: 1999-2014
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Based on FPG levels
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1999-2014
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Diabetes Outcome- Hemoglobin A1c
Tidsramme: 1999-2014
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Based on HbA1c levels
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1999-2014
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Diabetes Outcome- Combined Definition
Tidsramme: 1999-2014
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Based on both FPG and HbA1c levels
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1999-2014
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Sekundære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
---|---|---|
Sex Interaction
Tidsramme: 1999-2014
|
based on the previously stated definition outcomes
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1999-2014
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Samarbeidspartnere og etterforskere
Det er her du vil finne personer og organisasjoner som er involvert i denne studien.
Samarbeidspartnere
Etterforskere
- Hovedetterforsker: Lenore Arab, MSc, PhD, David Geffen School of Medicine
Publikasjoner og nyttige lenker
Den som er ansvarlig for å legge inn informasjon om studien leverer frivillig disse publikasjonene. Disse kan handle om alt relatert til studiet.
Generelle publikasjoner
- Luo C, Zhang Y, Ding Y, Shan Z, Chen S, Yu M, Hu FB, Liu L. Nut consumption and risk of type 2 diabetes, cardiovascular disease, and all-cause mortality: a systematic review and meta-analysis. Am J Clin Nutr. 2014 Jul;100(1):256-69. doi: 10.3945/ajcn.113.076109. Epub 2014 May 21.
- Ma Y, Njike VY, Millet J, Dutta S, Doughty K, Treu JA, Katz DL. Effects of walnut consumption on endothelial function in type 2 diabetic subjects: a randomized controlled crossover trial. Diabetes Care. 2010 Feb;33(2):227-32. doi: 10.2337/dc09-1156. Epub 2009 Oct 30.
- Katz DL, Davidhi A, Ma Y, Kavak Y, Bifulco L, Njike VY. Effects of walnuts on endothelial function in overweight adults with visceral obesity: a randomized, controlled, crossover trial. J Am Coll Nutr. 2012 Dec;31(6):415-23. doi: 10.1080/07315724.2012.10720468.
- Brennan AM, Sweeney LL, Liu X, Mantzoros CS. Walnut consumption increases satiation but has no effect on insulin resistance or the metabolic profile over a 4-day period. Obesity (Silver Spring). 2010 Jun;18(6):1176-82. doi: 10.1038/oby.2009.409. Epub 2009 Nov 12.
- Kalgaonkar S, Almario RU, Gurusinghe D, Garamendi EM, Buchan W, Kim K, Karakas SE. Differential effects of walnuts vs almonds on improving metabolic and endocrine parameters in PCOS. Eur J Clin Nutr. 2011 Mar;65(3):386-93. doi: 10.1038/ejcn.2010.266. Epub 2010 Dec 15.
- Mukuddem-Petersen J, Stonehouse Oosthuizen W, Jerling JC, Hanekom SM, White Z. Effects of a high walnut and high cashew nut diet on selected markers of the metabolic syndrome: a controlled feeding trial. Br J Nutr. 2007 Jun;97(6):1144-53. doi: 10.1017/S0007114507682944. Epub 2007 Mar 7.
- Tapsell LC, Batterham MJ, Teuss G, Tan SY, Dalton S, Quick CJ, Gillen LJ, Charlton KE. Long-term effects of increased dietary polyunsaturated fat from walnuts on metabolic parameters in type II diabetes. Eur J Clin Nutr. 2009 Aug;63(8):1008-15. doi: 10.1038/ejcn.2009.19. Epub 2009 Apr 8.
- Tapsell LC, Gillen LJ, Patch CS, Batterham M, Owen A, Bare M, Kennedy M. Including walnuts in a low-fat/modified-fat diet improves HDL cholesterol-to-total cholesterol ratios in patients with type 2 diabetes. Diabetes Care. 2004 Dec;27(12):2777-83. doi: 10.2337/diacare.27.12.2777.
- Wu L, Piotrowski K, Rau T, Waldmann E, Broedl UC, Demmelmair H, Koletzko B, Stark RG, Nagel JM, Mantzoros CS, Parhofer KG. Walnut-enriched diet reduces fasting non-HDL-cholesterol and apolipoprotein B in healthy Caucasian subjects: a randomized controlled cross-over clinical trial. Metabolism. 2014 Mar;63(3):382-91. doi: 10.1016/j.metabol.2013.11.005. Epub 2013 Nov 12.
- Moravej H, Salehi A, Razavi Z, Moein MR, Etemadfard H, Karami F, Ghahremani F. Chemical Composition and the Effect of Walnut Hydrosol on Glycemic Control of Patients With Type 1 Diabetes. Int J Endocrinol Metab. 2016 Jan 30;14(1):e34726. doi: 10.5812/ijem.34726. eCollection 2016 Jan.
- Bullard KM, Ali MK, Imperatore G, Geiss LS, Saydah SH, Albu JB, Cowie CC, Sohler N, Albright A, Gregg EW. Receipt of Glucose Testing and Performance of Two US Diabetes Screening Guidelines, 2007-2012. PLoS One. 2015 Apr 30;10(4):e0125249. doi: 10.1371/journal.pone.0125249. eCollection 2015.
- Guo K, Zhou Z, Jiang Y, Li W, Li Y. Meta-analysis of prospective studies on the effects of nut consumption on hypertension and type 2 diabetes mellitus. J Diabetes. 2015 Mar;7(2):202-12. doi: 10.1111/1753-0407.12173. Epub 2014 Jul 29.
- Zhou D, Yu H, He F, Reilly KH, Zhang J, Li S, Zhang T, Wang B, Ding Y, Xi B. Nut consumption in relation to cardiovascular disease risk and type 2 diabetes: a systematic review and meta-analysis of prospective studies. Am J Clin Nutr. 2014 Jul;100(1):270-7. doi: 10.3945/ajcn.113.079152. Epub 2014 May 7.
- Pan A, Sun Q, Manson JE, Willett WC, Hu FB. Walnut consumption is associated with lower risk of type 2 diabetes in women. J Nutr. 2013 Apr;143(4):512-8. doi: 10.3945/jn.112.172171. Epub 2013 Feb 20.
- Guo F, Moellering DR, Garvey WT. Use of HbA1c for diagnoses of diabetes and prediabetes: comparison with diagnoses based on fasting and 2-hr glucose values and effects of gender, race, and age. Metab Syndr Relat Disord. 2014 Jun;12(5):258-68. doi: 10.1089/met.2013.0128. Epub 2014 Feb 10.
Studierekorddatoer
Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.
Studer hoveddatoer
Studiestart (Faktiske)
1. juni 2015
Primær fullføring (Faktiske)
30. mai 2017
Studiet fullført (Faktiske)
30. mai 2017
Datoer for studieregistrering
Først innsendt
15. juli 2017
Først innsendt som oppfylte QC-kriteriene
19. juli 2017
Først lagt ut (Faktiske)
21. juli 2017
Oppdateringer av studieposter
Sist oppdatering lagt ut (Faktiske)
21. juli 2017
Siste oppdatering sendt inn som oppfylte QC-kriteriene
19. juli 2017
Sist bekreftet
1. juli 2017
Mer informasjon
Begreper knyttet til denne studien
Ytterligere relevante MeSH-vilkår
Andre studie-ID-numre
- WALNUT6DIABETES
Plan for individuelle deltakerdata (IPD)
Planlegger du å dele individuelle deltakerdata (IPD)?
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Legemiddel- og utstyrsinformasjon, studiedokumenter
Studerer et amerikansk FDA-regulert medikamentprodukt
Nei
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Nei
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