The Healthy Cantonese Diet on Cardiometabolic Syndrome

Hypertension Clinical Trial

Official title:

Effect of the Healthy Cantonese Diet on Cardiometabolic Syndrome in Chinese Adults

Clinical Trial Details — Status: Not yet recruiting

Administrative data

• NCT number: NCT04064281
• Other study ID #: CC-2019-03
• Status: Not yet recruiting
• Phase: N/A
• Start date: September 1, 2019
• Est. completion date: December 31, 2022

Study information

• Verified date: August 2019
• Source: Sun Yat-sen University
• Contact: Huilian Zhu, professor
• Phone: +86 20 87331811
• Email: zhuhl[@]mail.sysu.edu.cn
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

The DASH diet (Dietary Approaches to Stop Hypertension) have been proven to lower risk of cardiovascular diseases. But the DASH diet is inconsistent with Chinese dietary pattern. In this study, based on the typical Cantonese diet, the healthy Cantonese diet is developed according to the DASH diet and the balanced dietary pattern of the Chinese Dietary Guidelines 2016. The randomized control trial is designed to investigate whether the healthy Cantonese diet has benefit to blood pressure, blood lipid, blood glucose and other cardiometabolic biomarkers among adults with cardiometabolic syndrome in Guangdong, China.

Recruitment information / eligibility

• Status: Not yet recruiting
• Enrollment: 90
• Est. completion date: December 31, 2022
• Est. primary completion date: December 31, 2021
• Accepts healthy volunteers: No
• Gender: All
• Age group: 25 Years to 75 Years

Eligibility

Inclusion Criteria:

1. Age 25-75 years old, male or female;

2. have lived in this community for the past six months, and have no plans to move out or go out in the next three months;

3. the systolic blood pressure is within 130-159mmHg regardless of medication.

4. maintaining the current medication (mainly drugs for hypertension, diabetes or hyperlipidemia) throughout the research period, with the category and dose unchanged;

5. the number of test meal consumed is no less than 18;

6. community feeding mode: eat a meal at least once a day at the research center (preferably lunch or dinner); or home delivery mode: upload meal pictures for three meals every day, and eat a meal and have physical examination at the research center at least once a week;

7. sign the informed consent form.

Exclusion Criteria:

1. fasting blood glucose =10.0mmol/L;

2. total cholesterol =7.2mmol/L;

3. injected inulin within a month;

4. unwilling or unable to change the original dietary pattern, or have special dietary needs (such as vegetarians);

5. alcoholism;

6. BMI =30kg/m^2, or losing weight currently;

7. have acute cardiovascular and cerebrovascular events occurred in the past six months;

8. have a history of chronic kidney disease, intestinal irritation or asthma;

9. women who have been/are preparing for pregnancy or lactation;

10. in combination with other serious diseases such as cancer, chronic heart failure, severe depression or other mental disorders, long-term bedridden or unable to move freely;

11. have a history of common food allergies (eggs, seafood, peanuts, etc.);

12. have undergone gastrointestinal surgery;

13. currently suffering from acute phase of diseases such as respiratory infections, fever, severe diarrhea;

14. have deaf-mutism, dementia, unable to communicate properly.

Related Conditions & MeSH terms

• Cardiovascular Diseases
• Cardiovascular Risk Factor
• High Blood Pressure
• Hyperglycemia
• Hyperlipidemias
• Hypertension

Intervention

Other:
• the healthy Cantonese diet
After a 1-week run-in period, the intervention group will eat the healthy Cantonese diet for 4 consecutive weeks. Free meals will be provided 3 times a day (breakfast, lunch, dinner). The actually intake of every meal for all subjects will be recorded to estimate their nutrients intake. All subjects will be advised to avoid eating other food, but they should inform researchers of what they eat if they eat food that we will not provide.
• the typical Cantonese diet
After a 1-week run-in period, the control group will still eat the typical Cantonese diet for 4 consecutive weeks. Free meals will be provided 3 times a day (breakfast, lunch, dinner). The actually intake of every meal for all subjects will be recorded to estimate their nutrients intake. All subjects will be advised to avoid eating other food, but they should inform researchers of what they eat if they eat food that we will not provide.

Locations

Country	Name	City	State
n/a

Sponsors (1)

Lead Sponsor	Collaborator
Sun Yat-sen University

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Metabolic syndrome score	Changes of metabolic syndrome score in healthy Cantonese diet compared with changes of typical Cantonese diet. Metabolic syndrome score will be derived by standardizing and then summing the following continuously distributed indices of adiposity (waist circumference) to create a z score: hypertension (the average of systolic blood pressure and diastolic blood pressure); hyperglycaemia (fasting plasma glucose); insulin resistance (fasting insulin); fasting HDL-cholesterol × -1; and fasting triacylglycerol z score.	before and after 4-week intervention
Primary	Systolic blood pressure and diastolic blood pressure	Changes of systolic blood pressure and diastolic blood pressure in healthy Cantonese diet compared with changes of typical Cantonese diet. Blood pressure will be measured by trained investigator at baseline, week 1, week 2, week 3 and week 4, and systolic blood pressure and diastolic blood pressure will be recorded.	before and after 4-week intervention
Primary	Blood lipid profile	Changes of blood lipid profile in healthy Cantonese diet compared with changes of typical Cantonese diet. Blood lipid profile (total cholesterol, TC; triglyceride, TG; LDL cholesterol, LDLc; HDL cholesterol, HDLc) will be tested by a validated biomedical analyses laboratory using vein serum at baseline and week 4.	before and after 4-week intervention
Primary	Glucose metabolism	Changes of glucose metabolism in healthy Cantonese diet compared with changes of typical Cantonese diet. Glucose metabolism (fasting plasma glucose and fasting insulin) will be tested by a validated biomedical analyses laboratory using vein serum at baseline and week 4 and insulin resistance index (HOMA-IR) will be calculated by [fasting insulin (mU/L) × fasting plasma glucose (mmol/L) ]/22.5.	before and after 4-week intervention
Secondary	Blood biochemical marker	Changes of blood biochemical marker in healthy Cantonese diet compared with changes of typical Cantonese diet. Blood biochemical marker (calcium, potassium, sodium, magnesium and phosphorus in mmol/L; uric acid in µmol/L) will be tested by a validated biomedical analyses laboratory using vein serum at baseline and week 4.	before and after 4-week intervention
Secondary	Urinary sodium and potassium	Changes of urinary sodium and potassium in healthy Cantonese diet compared with changes of typical Cantonese diet. Urinary sodium and potassium will be tested by a validated biomedical analyses laboratory using morning urine at baseline and week 4.	before and after 4-week intervention
Secondary	Intestinal microbiota composition	Changes of intestinal microbiota composition in healthy Cantonese diet compared with changes of typical Cantonese diet.	before and after 4-week intervention
Secondary	Gut microbial gene richness	Changes of gut microbial gene richness in healthy Cantonese diet compared with changes of typical Cantonese diet.	before and after 4-week intervention
Secondary	Inflammatory biomarkers	Changes of inflammatory biomarkers in healthy Cantonese diet compared with changes of typical Cantonese diet. Inflammatory biomarkers (CRP in mg/L; Tumor TNF-a and IL-6 in ng/L) will be tested by a validated biomedical analyses laboratory using vein serum at baseline and week 4.	before and after 4-week intervention
Secondary	Cardiopulmonary function	Changes of cardiopulmonary function in healthy Cantonese diet compared with changes of typical Cantonese diet. Cardiopulmonary function will be measured by cardiopulmonary exercise testing using CORTEX MetaLyzer 3B at baseline and week 4.	before and after 4-week intervention
Secondary	Endothelial function	Changes of endothelial function in healthy Cantonese diet compared with changes of typical Cantonese diet. Flow-mediated dilatation (FMD) will be assessed to evaluate endothelial function by using UNEX EF38G at baseline and week 4.	before and after 4-week intervention
Secondary	Body composition	Changes of body composition in healthy Cantonese diet compared with changes of typical Cantonese diet. Body composition will be tested by using dual energy X-ray absorptiometry at baseline and week 4.	before and after 4-week intervention
Secondary	Body mass index (BMI)	Height in meters and weight in kilograms will be combined to report body mass index (BMI) in kg/m^2.	before and after 4-week intervention
Secondary	Ratio of waist to hip circumference (WHR)	Waist circumference in centimeters and hip circumference in centimeters will be combined to report ratio of waist to hip circumference (WHR).	before and after 4-week intervention