Body Composition and Risk for Development of Pre-diabetes in Post-menopausal Chinese Women in Singapore

Study Overview
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Brief Summary
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This project aims to ascertain that novel imaging and metabolic markers can be used to identify as well as to validate and improve the detection of Singapore-Chinese women at increased risk of diabetes.

Detailed Description
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Disproportionate non-communicable disease risk present in some ethnicities has been demonstrated and is amplified by increased weight gain. Relative to Malay and Caucasian populations, the prevalence of obesity increased sharply in people of Chinese and Indian ethnicity and diabetes risk is prevalent at a BMI of 21 (equivalent to a BMI >25 in Caucasian populations). It was also speculated that Chinese Singaporean women are prone to metabolic syndrome at a lower BMI. This study will recruit two groups of postmenopausal women with different BMI's and to measure markers for metabolic syndrome. These participants will visit Clinical Nutrition Research Centre for a single session and will undergo a whole body scan and a regional scan of the lumbar spine and femoral neck with a bone densitometer and fasting baseline blood and urine samples collected. Dual Energy X-ray Absorptiometry (DEXA) scan will provide percentage fat mass, fat in gram, whole body bone mineral content and total body lean mass. From these, gynoid and android fat distribution will be derived and appendicular lean mass will be calculated and an index calculated using kg/m2 to give an indication of relative muscle mass. In addition blood and urine samples will be collected for metabolic risk analysis. Participants will be also be undergoing a Quantitative Computed Tomography (QCT) scan which will allow true volumetric measurements of the lumbar spine and proximal femur independent of the body size. Volumetric density values will be measured in Hounsfield units transformed into Bone Mineral Density measurements using a calibration phantom underneath the patient. Magnetic Resonance Imaging of the 3rd lumbar vertebra and the right hip will also be performed.

Official Title
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Body Composition and Risk for Development of Pre-diabetes in Post-menopausal Chinese Women in Singapore

Conditions
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Osteoporosis, Metabolic Syndrome

Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Healthy Chinese women Aged 55 to 70 years Be 5 years past menopause Have not been diagnosed with type 1 diabetes Exclusion Criteria: Have been diagnosed with Hyper or Hypo-thyroidism, Parathyroid disease, Diabetes Mellitus, Cushing's syndrome. Have Cancers Have Systemic Lupus Erythematosus and Rheumatoid Arthritis Respiratory Disease Had Operations such as Gastrectomy and Intestinal resection Have Liver Disease such as Liver cirrhosis On prescribed medication known to affect the study outcomes.

Ages Eligible for Study
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Minimum Age: 55 Years
Maximum Age: 70 Years

Sexes Eligible for Study
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Female

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Body composition | Measured using Air Displacement Plethysmograph (BOD POD) | 1 hour | 
| Body composition | Measured using Dual Energy X-Ray Absorptiometry | 1 hour | 
| Body composition | Measured using Magnetic Resonance Imaging (MRI) | 1 hour | 
| Bone mineral density | Measured using Dual Energy X-Ray Absorptiometry (DEXA) | Half an hour | 
| Bone mineral density | Measured using Quantitative Computed Tomography | Half an hour | 
| Bone mineral density | Measured using Magnetic Resonance Imaging (MRI) | Half an hour | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Blood biomarkers | Measure of fasting blood glucose | Half an hour | 
| Blood biomarkers | Measure of fasting blood insulin | Half an hour | 
| Blood biomarkers | Measure of fasting blood lipid profile | Half an hour | 
| Blood biomarkers | Measure of fasting apolipoprotein A1 | Half an hour | 
| Blood biomarkers | Measure of fasting apolipoprotein B | Half an hour | 
| Blood biomarkers | Measure of folate | Half an hour | 
| Blood biomarkers | Measure of vitamin B12 | Half an hour | 
| Blood biomarkers | Measure of high-sensitive C-reactive protein | Half an hour | 
| Blood biomarkers | Measure of Parathyroid hormone | Half an hour | 
| Urine Markers | Measure urinary C-telopeptide of type II collagen | Half an hour |