The impact of gum disease on the levels of a cardiovascular disease marker in the body

ISRCTN ISRCTN13626790
DOI https://doi.org/10.1186/ISRCTN13626790
Submission date
21/06/2022
Registration date
08/07/2022
Last edited
16/01/2023
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Oral Health
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data

Plain English summary of protocol

Background and study aims
The endothelium is a thin membrane that lines the inside of the heart and blood vessels. Endothelial dysfunction is one of the early events in atherosclerosis (the thickening or hardening of the heart arteries). Severe gum disease (periodontitis) is considered to be a contributing risk factor for endothelial dysfunction. High blood concentration of a marker protein called asymmetric dimethylarginine (ADMA), has emerged as a predictor of the risk of cardiovascular disease. Thus, reducing periodontal inflammation might have clinical relevance in cardiovascular disease. Insufficient clinical evidence exists to draw clear conclusions regarding the long-term effects of periodontal disease on endothelial function, and even less evidence is available on ADMA concentration and its relationship with periodontitis. The aim of this study was to evaluate the effects of intensive periodontal treatment in modulating endothelial function via the assessment of plasma ADMA concentration in patients diagnosed with severe periodontitis.

Who can participate?
Adult patients diagnosed with generalized periodontitis

What does the study involve?
In this 6-month study, all patients will undergo a complete medical and clinical periodontal examination, laboratory analysis of ADMA, and ultrasound assessment of fibromuscular dysplasia (FMD) of the right brachial artery. After the screening, patients were randomly assigned to receive Intensive Periodontal Treatment or Community-based Periodontal Care. A full examination was carried out at baseline, 3 and 6 months after periodontal treatment.

What are the possible benefits and risks of participating?
There are no risks of participating. Benefits are related to the potential improvement of cardiovascular markers.

Where is the study run from?
University of Bari Aldo Moro (Italy)

When is the study starting and how long is it expected to run for?
July 2017 to October 2019

Who is funding the study?
Investigator initiated and funded

Who is the main contact?
Dr Biagio Rapone (Italy)
biagio.rapone@uniba.it

Contact information

Dr Biagio Rapone
Principal Investigator

Interdisciplinary Department of Medicine
University of Bari Aldo Moro
Bari
60124
Italy

Phone +39 3477619817
Email biagiorapone79@gmail.com

Study information

Study designSingle-center single-blinded randomized controlled trial
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Hospital
Study typeTreatment
Participant information sheet Not available in web format, please use the contact details to request a participant information sheet
Scientific titleThe impact of periodontal inflammation on endothelial function assessed by circulating levels of asymmetric dimethylarginine: a single-blinded randomized clinical trial
Study acronymP.I.ADMA
Study objectivesPeriodontal treatment reduces the concentrations of asymmetric dimethylarginine in patients with a high risk of endothelial dysfunction
Ethics approval(s)Approved 16/01/2018, Albania University Ethics Committee (Albanian University, Rr ‘Durresit”, Tirane 1001, Albania; +355 (0)686086880; e.quorri@albanianuniversity.edu.al), ref: Nr. 16
Health condition(s) or problem(s) studiedGeneralized periodontitis with no risk for endothelial dysfunction
InterventionThis was a 6-month, randomized controlled trial, including 140 patients between 41 and 63 years old, diagnosed with severe periodontitis, free from cardiovascular disease (CVD), and traditional cardiovascular risk factors. All patients underwent complete medical and clinical periodontal examination, laboratory analysis of ADMA, and ultrasound assessment of fibromuscular dysplasia (FMD) of the right brachial artery. After the screening, they were randomly assigned to receive intensive periodontal treatment (test group, n = 70) or community-based periodontal care (control group, n = 70). A full examination was carried out at baseline, 3 and 6 months after periodontal treatment.
Intervention typeProcedure/Surgery
Primary outcome measureAsymmetric dimethylarginine levels in blood measured by enzyme-linked immunosorbent assay (ELISA, DLD Diagnostika, Hamburg, Germany) at baseline, 3 and 6 months
Secondary outcome measures1. Fibromuscular dysplasia (FMD) of the right brachial artery measured using ultrasound at baseline, 3 and 6 months
2. Periodontal indices using a periodontal probe at baseline, 3 and 6 months
Overall study start date03/07/2017
Completion date10/10/2019

Eligibility

Participant type(s)Patient
Age groupAdult
SexBoth
Target number of participants70 patients per group
Total final enrolment140
Key inclusion criteria1. Aged between 41 years old and 63 years old
2. Diagnosis of generalized periodontitis
Key exclusion criteria1. Patients presenting with dental implants, orthodontic bands and ulcers
2. Patients who received periodontal treatment within 12 months prior to the start of the study
3. Patients who received systemic antibiotics within the last 6 months
4. Pregnancy or breastfeeding mothers
5. History of diabetes or a fasting glucose level greater than 126 mg/dl
6. History of cardiovascular disease
7. Patients with any systemic disease:
7.1. Diabetes mellitus
7.2. Cardiovascular disease
7.3. Kidney disease
7.4. Liver disease
7.5. Lung disease
8. Patients with cardiovascular risk factors and active smokers were excluded to minimize any confounding effect of conditions that may influence endothelial function
Date of first enrolment06/06/2018
Date of final enrolment07/12/2018

Locations

Countries of recruitment

  • Albania

Study participating centre

Albania University
Rr "Durrèsit", Tiranè 1001
Tirane
1001
Albania

Sponsor information

University of Bari Aldo Moro
University/education

Piazza Giulio Cesare 11
Bari
70121
Italy

Phone +39 3477619817
Email urp@uniba.it
Website http://www.uniba.it/english-version
ROR logo "ROR" https://ror.org/027ynra39

Funders

Funder type

Other

Investigator initiated and funded

No information available

Results and Publications

Intention to publish date31/07/2022
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot expected to be made available
Publication and dissemination planPlanned publication in a high-impact peer-reviewed journal.
IPD sharing planThe datasets generated during and/or analysed during the current study are not expected to be made available due to the risk of improper use.

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Results article results 18/07/2022 16/01/2023 Yes No

Editorial Notes

16/01/2023: Publication reference added.
08/07/2022: Trial's existence confirmed by the Albania University Ethics Committee.