Changes in Arterial Stiffness and Endothelial Glycocalyx in Patients With Poorly Controlled Diabetes Mellitus Type 1 or Type 2 After Optimization of Antidiabetic Medication.

NCT ID: NCT03010956

Last Updated: 2018-10-11

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

Total Enrollment

100 participants

Study Classification

OBSERVATIONAL

Study Start Date

2014-11-30

Study Completion Date

2017-11-30

Brief Summary

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Arterial stiffness is associated with increased risk for cardiovascular disease. Moreover, the integrity of endothelial glycocalyx plays a vital role in vascular permeability, inflammation and elasticity. The purpose of this study is to investigate changes in arterial stiffness and endothelial glycocalyx thickness in patients with poorly controlled diabetes mellitus type 1 or type 2 after glycemic control by optimal medication.

Detailed Description

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The investigators will study two groups matched for age and sex: 30 patients with uncontrolled type 1 diabetes and 30 patients with uncontrolled type 2 diabetes. Individuals should not be treated with statins, beta-blockers, ACE inhibitors, sartans, hormonal preparations, drugs that interfere with the function of platelets and hemostasis. Furthermore, they should not have heart failure, nephropathy and retinopathy. 10 people will remain uncontrolled after the expiration of 3 months after the modification of antidiabetic medication used as a control group .

At 0, 3, 6 and 12 months the investigators will measure:

1. Carotid-femoral pulse wave velocity (PWV, m/sec) and augmentation index (AI%) by the method of arteriography (Arteriograph, TensioMed) and Complior (SP ALAM).
2. Perfused boundary region (PBR, micrometers) of the sublingual arterial microvessels (ranged from 5-25 micrometers) using Sideview Darkfield imaging (Microscan, Glycocheck). Increased PBR is considered an accurate non invasive index of reduced endothelial glucocalyx thickness.
3. Flow mediated dilatation (FMD) of the brachial artery.
4. Determination of following parameters in blood: glucose, insulin, free fatty acids, triglycerides, glycerol, C-reactive protein (CRP), transforming growth factor-b (TGF-b), Lipoprotein-Associated Phospholipase A2 (LP-LPA2), tumor necrosis factor-a (TNF-a), IL6 and IL10 (interleukins), propeptide of type I procollagen (PIP), propeptide of procollagen type III (PIIINP), matrix metallopeptidases 9 and 2 (MMP), macrophage-colony stimulating factor (MCSF), growth differentiation factor-15 (GDF-15), N-terminal pro b-type natriuretic peptide (NT-proBNP) and galectin-3.

Conditions

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Diabetes Mellitus

Study Design

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Observational Model Type

CASE_CROSSOVER

Study Time Perspective

PROSPECTIVE

Study Groups

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Patients with uncontrolled diabetes mellitus

Patients with uncotrolled tyre 1 or type 2 diabetes mellitus

No interventions assigned to this group

Patients with controlled diabetes mellitus

Patients with controlled type 1 or type 2 diabetes mellitus

No interventions assigned to this group

Eligibility Criteria

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Inclusion Criteria

* Patients with uncontrolled diabetes mellitus

Exclusion Criteria

* valvular heart disease
* congestive heart failure
* peripheral vascular disease
* liver or kidney failure
* history of alcohol or drug abuse
* treatment with statins, beta- blockers, ACE inhibitors or sartans
Minimum Eligible Age

18 Years

Maximum Eligible Age

70 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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University of Athens

OTHER

Sponsor Role lead

Responsible Party

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Ignatios Ikonomidis

Associate Professor in Cardiology

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Ignatios Ikonomidis, MD

Role: PRINCIPAL_INVESTIGATOR

2nd Cardiology Department, University of Athens, Greece

George Pavlidis, MD

Role: PRINCIPAL_INVESTIGATOR

2nd Cardiology Department, University of Athens, Greece

Vaia Lambadiari, MD

Role: PRINCIPAL_INVESTIGATOR

2nd Department of Internal Medicine, University of Athens, Greece

Fotini Kousathana, MD

Role: PRINCIPAL_INVESTIGATOR

2nd Department of Internal Medicine, University of Athens, Greece

Constantinos Tymbas, MD

Role: PRINCIPAL_INVESTIGATOR

2nd Cardiology Department, University of Athens, Greece

George Dimitriadis, MD

Role: PRINCIPAL_INVESTIGATOR

2nd Department of Internal Medicine, University of Athens, Greece

John Lekakis, MD

Role: PRINCIPAL_INVESTIGATOR

2nd Cardiology Department, University of Athens, Greece

Locations

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''Attikon'' University General Hospital

Athens, Attica, Greece

Site Status

Countries

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Greece

Other Identifiers

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S-DM-ATTIKON

Identifier Type: -

Identifier Source: org_study_id

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