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Tongue Fur and Metabolites in Diabetes Mellitus

Correlation Between Tongue Fur and Metabolites in Diabetes Mellitus and pre-diabetes-a Pilot Study

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04909632
Enrollment
160
Registered
2021-06-02
Start date
2020-03-01
Completion date
2022-07-31
Last updated
2025-04-03

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

Conditions

Diabetes Mellitus, Pre-diabetes

Keywords

diabetic mellitus , tongue fur, metabolites, and biomarkers

Brief summary

This study is a prospective cross-sectional study. The investigators enroll participants form the department of endocrinology and of metabolism, China Medical University Hospital. In total, 300 participants , composed of 100 of type 2 diabetes , 100 of pre-DM and 100 healthy participants. The investigators apply tongue diagnosis system, pulse wave analysis, body constitution questionnaires, and nailfold capillaroscopy to assess the differences of TCM diagnosis. After collecting the tongue coating and analyzing the metabolite signals with a flying mass spectrometer, The investigators collect the data to establish metabolite pattern and biomarkers. This study aims to identify the clinical symptoms of DM with TCM diagnostic tools and investigate the pattern difference and treatment for DM. Furtherly, the investigators add mass spectrometer to analyze the metabolites of tongue coating, the investigators propose to establish a metabolite pattern and biomarker to identify important biological indicators of DM.

Interventions

DIAGNOSTIC_TESTLiquid chromatography-mass spectrometry (LC-MS) analysis

The data were acquired by UNIFI software (Waters) and processed by UNIFI and Progenesis QI software. Omics analysis methods, such as principal component analysis (PCA), partial least squares-discriminate analysis (PLS-DA), and orthogonal partial least squares-discriminate analysis (OPLS-DA), were employed to identify the biochemical patterns in tongue coating samples and suggest variables that can be used as biomarkers for diabetes and pre-diabetes.

Sponsors

China Medical University Hospital
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
DIAGNOSTIC
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
20 Years to 80 Years
Healthy volunteers
Yes

Inclusion criteria

1. Clinical diagnosis of type 2 DM 2. Clinical diagnosis of pre-DM 3. Participants in the control group had a normal fasting glucose level

Exclusion criteria

1. comorbidity of inadequate heart, liver, kidney, or other serious diseases. 2. pregnancy or lactation. 3. history of mental illness.

Design outcomes

Primary

MeasureTime frameDescription
The differentiation of tongue features mellitus and pre-diabetes2 yearsThe primary outcome is the differentiation of tongue features extracted by ATDS. There are nine primary features for TCM clinical tongue diagnosis, namely, tongue shape, tongue color, fur thickness, fur color, saliva, tongue fissure, ecchymosis, teeth mark, and red dot. Features identified are further sub-divided according to the areas located, i.e., heart-lung area, left liver-gall, right liver-gall, spleen-stomach, and kidney.

Secondary

MeasureTime frameDescription
The tongue coating metabolic markers in patients with diabetes2 yearsThe study researched tongue coating metabolic markers in patients with diabetes to determine any relationship between tongue diagnosis and metabolic processes. Chromatographic analysis and comparison between the diabetes group and normal controls. PCA and PLS-DA analysis of metabolic profiles of tongue coating samples from the chronic gastritis group and normal controls. To improve the accuracy of the PLS discriminated model, OPLS-DA was used to analysis the results by removing some redundant information, such as envir- onmental factors, gender, and diet. Tongue metabolic fingerprint differences between the chronic gastritis group and normal controls were compared using OPLS-DA.

Countries

Taiwan

Outcome results

None listed

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