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Fish Oil-derived Omega-3 Fatty Acids on Gut Microbiota and Lipid Metabolome in Type 2 Diabetes Mellitus

Fish Oil-derived Omega-3 Fatty Acids on Gut Microbiota and Lipid Metabolome in Type 2 Diabetes Mellitus: a Randomized, Double-blind, Placebo-Controlled Clinical Trial

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06061510
Enrollment
110
Registered
2023-09-29
Start date
2019-06-08
Completion date
2020-01-31
Last updated
2023-11-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Type 2 Diabetes Mellitus, Lipid Metabolism Disorder, Fatty Acid Metabolism Disorder

Keywords

Omega-3 Fatty Acids, Gut Microbiota, lipid Metabolome, glycerophospholipid, Type 2 Diabetes Mellitus

Brief summary

The objective of this research was to investigate the impact of Omega-3 PUFAs on the gut microbiota and serum lipid metabolites in participants diagnosed with type 2 diabetes, employing high-throughput sequencing technology and untargeted lipidomics.

Detailed description

The pathogenesis of diabetes is associated with perturbations in lipid metabolism and intestinal flora. Nevertheless, the precise impact of Omega-3 polyunsaturated fatty acids (Omega-3 PUFAs) on key lipid metabolites, intestinal microorganisms, and fungi linked to type 2 diabetes remains indeterminate. The objective of this research was to investigate the impact of Omega-3 PUFAs on the gut microbiota and serum lipid metabolites in participants diagnosed with type 2 diabetes, employing high-throughput sequencing technology and untargeted lipidomics. The investigators randomly allocated 110 eligible participants into either the fish oil intervention group or the placebo control group for a 3-month double-blind randomized intervention trial. Bacterial 16S rDNA, fungal diversity analysis of Internally Transcribed Spacer sequences (ITS) and untargeted lipidomics were used to investigate the effects of Omega-3 PUFAs on intestinal microbiota and serum lipid metabolites.

Interventions

Participants in the intervention group took fish oil capsules, 6 capsules per day, divided into two doses in the morning and two doses in the evening.

DIETARY_SUPPLEMENTcorn oil

Participants in the placebo group took corn oil capsules, 6 capsules per day, divided into two doses in the morning and two doses in the evening.

Sponsors

The First Affiliated Hospital with Nanjing Medical University
CollaboratorOTHER
Southeast University, China
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
SUPPORTIVE_CARE
Masking
DOUBLE (Subject, Investigator)

Masking description

The study was a randomised, double-blind trial, and neither the subjects nor the research workers knew the exact subgroups or the progress of the treatment

Intervention model description

The study was a randomised, double-blind trial.

Eligibility

Sex/Gender
ALL
Age
18 Years to 70 Years
Healthy volunteers
No

Inclusion criteria

* Patients with type 2 diabetes have been diagnosed; * Male or female aged 18-70 years; * After listening to the project presentation, voluntarily participate in the study and sign an informed consent form.

Exclusion criteria

* Pregnant or lactating women; * Poorly controlled diabetes, i.e. HbA1c\>9%; * Have taken omega-3 PUFAs-related supplements in the past six months; * Taking lipid-lowering drugs or other drugs that affect blood lipid metabolism; * Patients with severe diabetic complications, severe hypertension, combined with * diseases of the heart, brain, liver, kidney, thyroid and hematopoietic system, psychosis; * Patients with severe immune system disorders; * Have special diets: vegetarians, weight managers, ketogenic test takers, etc; * The attending physician deems the participant unsuitable

Design outcomes

Primary

MeasureTime frameDescription
height in meters12 weeksphysiological parameter
body mass index (BMI)12 weeksBMI=weight(kg)/height\^2(m)
waist circumference12 weeksphysiological parameter
hip measurement12 weeksphysiological parameter
Systolic blood pressure12 weeksphysiological parameter
Diastolic blood pressure12 weeksphysiological parameter
Concentration of Serum triglycerides12 weeksphysiological parameter
Concentration of total cholesterol12 weeksphysiological parameter
weight in kilograms12 weeksphysiological parameter
Concentration of low-density lipoprotein cholesterol12 weeksphysiological parameter
Concentration of high-density lipoprotein cholesterol12 weeksphysiological parameter

Secondary

MeasureTime frameDescription
Number of Participants who take drugs12 weeksThis indicator refers to the number of participants taking medication.
Incidence of diabetes complications12 weeksThis indicator refers to the proportion of participants experiencing complications from diabetes.
Rate of smoking among participants12 weeksThis indicator refers to the proportion of participants who smoke.

Countries

China

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026