Mediterranean Diet and Endothelial Function

NCT ID: NCT01797211

Last Updated: 2013-02-22

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE4

Total Enrollment

60 participants

Study Classification

INTERVENTIONAL

Study Start Date

2010-06-30

Study Completion Date

2012-05-31

Brief Summary

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To assess the effect of Mediterranean diet and some of its specific components (olive oil, non fried fish and nuts) on endothelial function in overweight and obese patients

Detailed Description

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Abdominal obesity is well known to increase the risk of cardiovascular disease (CVD), since it is commonly associated with hypertension, dyslipidemia, impaired fasting glucose, type 2 diabetes, metabolic syndrome, insulin resistance, systemic inflammation and endothelium dysfunction.

Abnormal endothelial function, expressed as lower vasodilatation through flow-mediated vasodilatation (FMD) of brachial artery in response to an increase in blood flow, is considered an index of subclinical atherosclerosis, and an early hallmark of cardiovascular disease, with a strong prognostic value for future cardiovascular events. Changes in diet, level of physical activity and behavior are well known key elements influence endothelial function. Recent studies seem to show that Mediterranean diet has beneficial role on cardiovascular risk. It could protect against the development of coronary heart disease also through a possible effect on body weight and obesity.

At the best of our knowledge, the effect of Mediterranean diet on endothelial function in obese subjects has not been definitely established. Therefore, the aim of this study was to evaluate the impact of Mediterranean diet on anthropometric parameters (body weight, BMI and waist circumference), lipid profile \[total cholesterol (TC), high density lipoprotein cholesterol (HDL-C), low density lipoprotein cholesterol (LDL-C)\], triglycerides (TG), fasting glucose and endothelium function, evaluated by FMD, in a group of obese and overweight subjects. In particular, subjects were invited to follow a standard Mediterranean diet for a short (3 months) or a longer (18 months) period. The specific role of some components of Mediterranean diet (olive oil or non fried fish or nuts) was also investigated.

Conditions

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Cardiovascular Diseases

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

FACTORIAL

Primary Study Purpose

PREVENTION

Blinding Strategy

NONE

Study Groups

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diet group A

Mediterranean diet+olive oil

Group Type EXPERIMENTAL

Mediterranean diet

Intervention Type DIETARY_SUPPLEMENT

Patients underwent administration of Mediterranean diet and olive oil, or Mediterranean diet and not-fried fish, or Mediterranean diet and nuts.

Diet Group B

Mediterranean diet+not-fried fish

Group Type EXPERIMENTAL

Mediterranean diet

Intervention Type DIETARY_SUPPLEMENT

Patients underwent administration of Mediterranean diet and olive oil, or Mediterranean diet and not-fried fish, or Mediterranean diet and nuts.

Diet Group C

Mediterranean diet+nuts

Group Type EXPERIMENTAL

Mediterranean diet

Intervention Type DIETARY_SUPPLEMENT

Patients underwent administration of Mediterranean diet and olive oil, or Mediterranean diet and not-fried fish, or Mediterranean diet and nuts.

Interventions

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Mediterranean diet

Patients underwent administration of Mediterranean diet and olive oil, or Mediterranean diet and not-fried fish, or Mediterranean diet and nuts.

Intervention Type DIETARY_SUPPLEMENT

Eligibility Criteria

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Inclusion Criteria

BMI: \> 25.0 kg/m2 Age between 18-70 years

Exclusion Criteria

BMI \< 25.0 kg/m2 Age \<18 or \>70 years low left ventricular ejection fraction (LVEF \< 50%) symptomatic cardiac disease in advanced stage or poorly controlled by medication cerebral disorders major liver and kidney diseases cancer excessive alcohol intake use of drugs addressed to lose weight.
Minimum Eligible Age

18 Years

Maximum Eligible Age

70 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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University of Bari

OTHER

Sponsor Role lead

Responsible Party

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prof. Marco Matteo Ciccone

Associate Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Marco M Ciccone, MD

Role: PRINCIPAL_INVESTIGATOR

University of Bari

Giovanni De Pergola, MD

Role: PRINCIPAL_INVESTIGATOR

University of Bari

Locations

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Section of Cardiovascular Diseases, Department of Emergency and Organ Transplantation, University of Bari

Bari, Bari, Italy

Site Status

Countries

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Italy

References

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Feletou M, Vanhoutte PM. Endothelium-derived hyperpolarizing factor: where are we now? Arterioscler Thromb Vasc Biol. 2006 Jun;26(6):1215-25. doi: 10.1161/01.ATV.0000217611.81085.c5. Epub 2006 Mar 16.

Reference Type BACKGROUND
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Yoshida T, Kawano H, Miyamoto S, Motoyama T, Fukushima H, Hirai N, Ogawa H. Prognostic value of flow-mediated dilation of the brachial artery in patients with cardiovascular disease. Intern Med. 2006;45(9):575-9. doi: 10.2169/internalmedicine.45.1534. Epub 2006 Jun 1.

Reference Type BACKGROUND
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Reference Type RESULT
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Hotchkiss JW, Leyland AH. The relationship between body size and mortality in the linked Scottish Health Surveys: cross-sectional surveys with follow-up. Int J Obes (Lond). 2011 Jun;35(6):838-51. doi: 10.1038/ijo.2010.207. Epub 2010 Oct 5.

Reference Type RESULT
PMID: 20921963 (View on PubMed)

von Ruesten A, Steffen A, Floegel A, van der A DL, Masala G, Tjonneland A, Halkjaer J, Palli D, Wareham NJ, Loos RJ, Sorensen TI, Boeing H. Trend in obesity prevalence in European adult cohort populations during follow-up since 1996 and their predictions to 2015. PLoS One. 2011;6(11):e27455. doi: 10.1371/journal.pone.0027455. Epub 2011 Nov 10.

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Reference Type RESULT
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Reference Type RESULT
PMID: 20810975 (View on PubMed)

Issa C, Darmon N, Salameh P, Maillot M, Batal M, Lairon D. A Mediterranean diet pattern with low consumption of liquid sweets and refined cereals is negatively associated with adiposity in adults from rural Lebanon. Int J Obes (Lond). 2011 Feb;35(2):251-8. doi: 10.1038/ijo.2010.130. Epub 2010 Jul 6.

Reference Type RESULT
PMID: 20603626 (View on PubMed)

de Lorgeril M, Salen P, Martin JL, Monjaud I, Delaye J, Mamelle N. Mediterranean diet, traditional risk factors, and the rate of cardiovascular complications after myocardial infarction: final report of the Lyon Diet Heart Study. Circulation. 1999 Feb 16;99(6):779-85. doi: 10.1161/01.cir.99.6.779.

Reference Type RESULT
PMID: 9989963 (View on PubMed)

Robertson RM, Smaha L. Can a Mediterranean-style diet reduce heart disease? Circulation. 2001 Apr 3;103(13):1821-2. doi: 10.1161/01.cir.103.13.1821. No abstract available.

Reference Type RESULT
PMID: 11282917 (View on PubMed)

Perona JS, Cabello-Moruno R, Ruiz-Gutierrez V. The role of virgin olive oil components in the modulation of endothelial function. J Nutr Biochem. 2006 Jul;17(7):429-45. doi: 10.1016/j.jnutbio.2005.11.007. Epub 2005 Dec 12.

Reference Type RESULT
PMID: 16481154 (View on PubMed)

Massaro M, Basta G, Lazzerini G, Carluccio MA, Bosetti F, Solaini G, Visioli F, Paolicchi A, De Caterina R. Quenching of intracellular ROS generation as a mechanism for oleate-induced reduction of endothelial activation and early atherogenesis. Thromb Haemost. 2002 Aug;88(2):335-44.

Reference Type RESULT
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Reference Type RESULT
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Reference Type RESULT
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Reference Type RESULT
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Reference Type RESULT
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Reference Type RESULT
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Reference Type RESULT
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Urpi-Sarda M, Casas R, Chiva-Blanch G, Romero-Mamani ES, Valderas-Martinez P, Arranz S, Andres-Lacueva C, Llorach R, Medina-Remon A, Lamuela-Raventos RM, Estruch R. Virgin olive oil and nuts as key foods of the Mediterranean diet effects on inflammatory biomakers related to atherosclerosis. Pharmacol Res. 2012 Jun;65(6):577-83. doi: 10.1016/j.phrs.2012.03.006. Epub 2012 Mar 18.

Reference Type RESULT
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Hamdy O. Lifestyle modification and endothelial function in obese subjects. Expert Rev Cardiovasc Ther. 2005 Mar;3(2):231-41. doi: 10.1586/14779072.3.2.231.

Reference Type RESULT
PMID: 15853597 (View on PubMed)

Other Identifiers

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01

Identifier Type: -

Identifier Source: org_study_id

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