Effect of Sour Cherry Anthocyanins on Healthy Human Saliva

NCT ID: NCT05406011

Last Updated: 2023-05-16

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

UNKNOWN

Clinical Phase

NA

Total Enrollment

20 participants

Study Classification

INTERVENTIONAL

Study Start Date

2020-03-16

Study Completion Date

2024-12-31

Brief Summary

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The experiment is based on earlier research where it was proven that chewing gum usage with anthocyanin rich sour cherry extract significantly reduces the amount of human salivary alpha-amylase in unstimulated saliva samples and stimulated saliva samples taken in every 10 minutes till a half an hour as compared to placebo. The S. mutans counts' number on agar base cultures were greater in case of the stimulated samples of placebo and anthocyanin containing chewing gum groups.

The investigators' aims were to extend the background of the earlier established phenomena: The sour cherry (anthocyanin) containing chewing gum usage (around 2 weeks, daily 3 times) is beneficent on the human oral microflora and cytokine level/expression.

Detailed Description

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The experiment is based on earlier research where it was proven that chewing gum usage with anthocyanin rich sour cherry extract significantly reduces the amount of human salivary alpha-amylase in unstimulated saliva samples and stimulated saliva samples taken in every 5 minutes till a half an hour as compared to placebo.

The investigators' study: Examination the effect of sour cherry anthocyanin containing chewing gum in a study taking a 3-week experimental period. At the beginning of experimental period oral and basic periodontal examination of the participants. Selection of healthy young adults (10 person) and adults (10 person), who has good oral hygiene, do not suffer from serious general disease and do not get respiratory infection treated with antibiotics in the past 2 months. Arranging saliva sampling on fixed appointments (between 12:00 and 14:00, 1st, 4th and 7th day of the week) through 3 weeks. On the 1. week, which is a control period taking of resting saliva samples and stimulated saliva samples from the participants. The stimulated saliva sampling is made after chewing of a gum without active ingredient. At the end of the control week a full mouth scaling is made and after it all of the participants get sour cherry containing chewing gums to chew 3x daily till 2 weeks, and the sampling occasions arranged on the same days as on the control week. After scaling 10 participant change their toothbrush, and 10 do not change. The saliva sample analyzation is placed in the Institute of Food Technology, the Department of Human Genetics and Department of Microbiology where they are frozen on -80 Celsius till the laboratory analysis.

16S (16 Svedberg) rRNA (ribosomal ribonucleic acid) sequencing is starting with DNA isolation by Inhibitor Removal Technology followed by sequencing with Illumina MiSeqSystem. PCR (Polymerase Chain Reaction) analysis of saliva samples starting with RNA isolation of samples with MagMAX Viral Kit, followed by RNA transcription and qPCR (quantitative polymerase chain reaction ) according to the Manufacturer's Instructions. ELISA (Enzyme Linked Immunosorbent Assay) analysis with appropriate saliva analyzation kit for the listed cytokines as follows: Examined cytokines (PCR and ELISA): Interleukins: Interleukin-1β, Interleukin-2, Interleukin-6; TNF(tumor necrosis factor) alfa, Melatonin (ELISA) , Mucin 7 (ELISA) and Mucin-5B (5subtypeB) (ELISA).

The investigators' aims to are to extend the background of the earlier established phenomena: The sour cherry (anthocyanin) containing chewing gum usage (around 2 weeks, daily 3 times) is beneficent on the human oral microflora and cytokine level/expression.

Conditions

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Dental Caries

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

The participants are subdivided in parallel groups by their age and according to the toothbrush change (to change or not to change the toothbrush) after scaling.
Primary Study Purpose

PREVENTION

Blinding Strategy

NONE

Study Groups

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Age groups

Participants grouped by their age (Age group I: patients aged between 18-30, age group II: patients aged between 31-45).

Group Type EXPERIMENTAL

Pelleted sour cherry (anthocyanin) containing chewing gum usage.

Intervention Type DIETARY_SUPPLEMENT

Dietary Supplement usage (daily 3 times for 2 weeks) with salivary sampling on fixed days (1., 4. and 7.) and daytime (between 12:00 and 14:00) of the week. Procedure: Scaling after a control period without sour cherry chewing gum usage (1 week).

Pelleted chewing gum for stimulated saliva sampling.

Intervention Type DIETARY_SUPPLEMENT

Stimulated saliva sampling after chewing a pelleted gum without active ingredient (used only before stimulated saliva sampling), during the whole experimental period (control and parallel with sour cherry chewing gum usage) with sampling on fixed days (1., 4. and 7.) and daytime (between 12:00 and 14:00) of the week.

Scaling

Intervention Type PROCEDURE

Scaling after a 1-week control period without chewing the sour cherry gum.

Groups by toothbrush change

Half of the group change the toothbrush after scaling and the other half not.

Group Type EXPERIMENTAL

Pelleted sour cherry (anthocyanin) containing chewing gum usage.

Intervention Type DIETARY_SUPPLEMENT

Dietary Supplement usage (daily 3 times for 2 weeks) with salivary sampling on fixed days (1., 4. and 7.) and daytime (between 12:00 and 14:00) of the week. Procedure: Scaling after a control period without sour cherry chewing gum usage (1 week).

Pelleted chewing gum for stimulated saliva sampling.

Intervention Type DIETARY_SUPPLEMENT

Stimulated saliva sampling after chewing a pelleted gum without active ingredient (used only before stimulated saliva sampling), during the whole experimental period (control and parallel with sour cherry chewing gum usage) with sampling on fixed days (1., 4. and 7.) and daytime (between 12:00 and 14:00) of the week.

Scaling

Intervention Type PROCEDURE

Scaling after a 1-week control period without chewing the sour cherry gum.

Experimental period

Control: Control period without sour cherry chewing gum usage, with saliva sampling on fixed appointments (between 12:00 and 14:00, 0th, 4th and 7th day of the week) of the week. At the beginning oral and basic periodontal examinations performed. Plaque and calculus index at every sampling occasions.

Prevention: After a full mouth scaling sour cherry chewing gum usage, for a week. Saliva sampling on the same days. Plaque and calculus index at every sampling occasions.

Therapeutic: Sour cherry chewing gum usage, for one more week. Saliva sampling on the same days. Plaque and calculus index at every sampling occasions.

Control (without sour cherry chewing gum usage), prevention and therapeutic periods takes 3 weeks together.

Group Type EXPERIMENTAL

Pelleted sour cherry (anthocyanin) containing chewing gum usage.

Intervention Type DIETARY_SUPPLEMENT

Dietary Supplement usage (daily 3 times for 2 weeks) with salivary sampling on fixed days (1., 4. and 7.) and daytime (between 12:00 and 14:00) of the week. Procedure: Scaling after a control period without sour cherry chewing gum usage (1 week).

Pelleted chewing gum for stimulated saliva sampling.

Intervention Type DIETARY_SUPPLEMENT

Stimulated saliva sampling after chewing a pelleted gum without active ingredient (used only before stimulated saliva sampling), during the whole experimental period (control and parallel with sour cherry chewing gum usage) with sampling on fixed days (1., 4. and 7.) and daytime (between 12:00 and 14:00) of the week.

Scaling

Intervention Type PROCEDURE

Scaling after a 1-week control period without chewing the sour cherry gum.

Interventions

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Pelleted sour cherry (anthocyanin) containing chewing gum usage.

Dietary Supplement usage (daily 3 times for 2 weeks) with salivary sampling on fixed days (1., 4. and 7.) and daytime (between 12:00 and 14:00) of the week. Procedure: Scaling after a control period without sour cherry chewing gum usage (1 week).

Intervention Type DIETARY_SUPPLEMENT

Pelleted chewing gum for stimulated saliva sampling.

Stimulated saliva sampling after chewing a pelleted gum without active ingredient (used only before stimulated saliva sampling), during the whole experimental period (control and parallel with sour cherry chewing gum usage) with sampling on fixed days (1., 4. and 7.) and daytime (between 12:00 and 14:00) of the week.

Intervention Type DIETARY_SUPPLEMENT

Scaling

Scaling after a 1-week control period without chewing the sour cherry gum.

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* persons over than 18 years of age with a maximum age of 45 years,
* written informed consent,
* healthy dentition

Exclusion Criteria

* smoking,
* infectious disease treated with antibiotic in the last two months,
* xerostomia,
* acute oral lesion,
* allergy (lactose),
* systemic or mental condition which contraindicate the participation.
Minimum Eligible Age

18 Years

Maximum Eligible Age

45 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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University of Debrecen

OTHER

Sponsor Role lead

Responsible Party

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Dr. Boglárka Emese Skopkó

Department of Dentoalveolar Surgery, assistant lecturer

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Judit Remenyik, ass. prof.

Role: STUDY_DIRECTOR

University of Debrecen, Institute of Food Technology

Kinga Bágyi, ass. prof.

Role: STUDY_DIRECTOR

University of Debrecen, Faculty of Dentistry

Locations

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University of Debrecen

Debrecen, , Hungary

Site Status

Countries

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Hungary

References

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Homoki J , Gyemant G , Balogh P , Stundl L , Biro-Molnar P , Paholcsek M , Varadi J , Ferenc F , Kelentey B , Nemes J , Remenyik J . Sour cherry extract inhibits human salivary alpha-amylase and growth of Streptococcus mutans (a pilot clinical study). Food Funct. 2018 Jul 17;9(7):4008-4016. doi: 10.1039/c8fo00064f.

Reference Type BACKGROUND
PMID: 29978173 (View on PubMed)

Homoki JR, Nemes A, Fazekas E, Gyemant G, Balogh P, Gal F, Al-Asri J, Mortier J, Wolber G, Babinszky L, Remenyik J. Anthocyanin composition, antioxidant efficiency, and alpha-amylase inhibitor activity of different Hungarian sour cherry varieties (Prunus cerasus L.). Food Chem. 2016 Mar 1;194:222-9. doi: 10.1016/j.foodchem.2015.07.130. Epub 2015 Jul 29.

Reference Type BACKGROUND
PMID: 26471548 (View on PubMed)

Provided Documents

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Document Type: Informed Consent Form

View Document

Other Identifiers

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2022-IV/1120-1/2020

Identifier Type: -

Identifier Source: org_study_id

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