Effect of Systemic Retinoic Acid Use on Periodontium-Related T Cell Differentiation
Trial Snapshot
- Phase
- Not Applicable
- Status
- Completed
- Sponsor
- Enrollment
- 24
- Locations
- 1
- Primary Endpoint
- bleeding on probing
Study Overview
Brief Summary
This prospective cohort study analysed the effects of systemic retinoic acid use on periodontal status, salivary flow rate (SFR), and salivary and serum levels of interleukin (IL)-1β, IL-8 and monocyte chemoattractant protein (MCP)-1.
Detailed Description
Vitamin A (isotretinoin, 13-cis-retinoic acid) and its metabolites are essential for various biological processes, including vision, development, and immune regulation. The periodontium, which consists of tissues supporting the teeth, can transition from health to disease due to multiple factors. The impact of retinoic acid (RA) on periodontal tissues has primarily been investigated in vitro; however, evidence suggests that it may reduce alveolar bone destruction and modulate cytokine expression, indicating potential anti-inflammatory properties. Nevertheless, there is a lack of studies examining the relationship between RA and periodontal health.
This study aims to evaluate the potential association between systemic RA use and the periodontal tissue response in terms of inflammatory markers (cytokines: IL-1β, IL-8; chemokines: MCP-1) and to assess dental/periodontal status at different time intervals. The study hypothesizes that RA use will enhance the periodontal tissue response independently of the existing bacterial biofilm and its quantity in the oral cavity, thereby negatively affecting the maintenance of periodontal health through alterations in the periodontium's defense mechanisms.
Saliva and serum samples from 24 participants were collected to assess inflammatory responses. The samples were obtained and stored at Istanbul Medipol University Mega Hospital, Turkey, and subsequently transferred to the University of Turku, Finland, for laboratory analyses. Serum and saliva samples were analyzed for inflammatory markers (IL-1β, IL-8, MCP-1) using multiplex immunoassay kits (Millipore; MILLIPLEX® Human Cytokine/Chemokine/Growth Factor Panel A-Immunology Multiplex Assay, #HCYTA-60K, Merck Millipore, Massachusetts, MA). Additionally, sociodemographic, dental, and periodontal data of each participant were analyzed.
This study will contribute to understanding the potential relationship between RA and periodontal status, as well as the effects of RA on the inflammatory response of periodontal tissues.
Study Design
- Study Type
- Observational
- Observational Model
- Cohort
- Time Perspective
- Prospective
Eligibility Criteria
- Ages
- 18 Years to 30 Years (Adult)
- Sex
- All
- Accepts Healthy Volunteers
- Yes
Inclusion Criteria
- •Directed to use isotretinoin 0,5 to 1 mg/kg/day for 6 months for the treatment of moderate and severe acne vulgaris or nodular acne according to the global acne rating by dermatologist
- •Being at the age range of 18-30 years old
- •Willing to participate to the study
- •Periodontally Healthy
Exclusion Criteria
- •Systemic diseases other than acne vulgaris or nodular acne
- •Use of antibiotics, anti-inflammatory drugs, nonsteroidal anti-inflammatory drugs, steroids, immunosuppressants, beta-blockers, calcium channel blockers, anticoagulants, or hormonal contraceptives within 6 months prior to the initiation of the study
- •Pregnancy or being lactating
- •Excessive use of alcohol
- •Received nonsurgical periodontal therapy during preceding 6 months or surgical periodontal therapy during preceding 12 months
- •Have fewer than 20 natural teeth excluding third molars
- •Have orthodontic appliances.
Outcomes
Primary Outcomes
bleeding on probing
Time Frame: at 4 time point: before retinoic acid treatment, during(6th week and 5th month) retinoic acid treatment and 2nd month after completion of retinoic acid therapy
To assess the inflammatory status of the pocket base and pocket epithelium, bleeding was recorded 30 seconds after probing depth measurement. The presence of bleeding was scored as positive (+), while the absence of bleeding was recorded as negative (-). The percentage value of the Bleeding on Probing for each patient was calculated using the following formula: (Number of bleeding surfaces / Total number of tooth surfaces) × 100
IL-1beta, IL-8 and MCP-1 levels
Time Frame: at 4 time point: before retinoic acid treatment, during(6th week and 5th month) retinoic acid treatment and 2nd month after completion of retinoic acid therapy
Interleukin(IL)-1beta, IL-8 and monocyte chemoattractant protein (MCP)-1 are inflammatory cytokines which show inflamatory changes.
salivary flow rate
Time Frame: at 4 time point: before retinoic acid treatment, during(6th week and 5th month) retinoic acid treatment and 2nd month after completion of retinoic acid therapy
Salivary flow rate was calculated by the collected saliva volume SFR=Volume of saliva (mL) collected in 10 minutes/10 minutes.
Secondary Outcomes
No secondary outcomes reported
Investigators
bestegül günay
Doctor of Dental Surgery, PhD Student
Medipol University