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| ID | Type | Description | Link |
|---|---|---|---|
| 2R01HD028016-20A1 | U.S. NIH Grant/Contract | View source | |
| 2R01HD028016 | U.S. NIH Grant/Contract | View source |
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| Name | Class |
|---|---|
| Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) | NIH |
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Insulin Resistance is the best predictor of whether the obese adolescent will develop type 2 diabetes. The present studies will focus on determining what might cause fat to accumulate in the subcutaneous fat regions and lead to local inflammation, causing insulin resistance to develop in obese adolescents.
The purpose of this study is to test whether the reduced transcription of key lipogenic/adipogenic genes in abdominal subcutaneous adipose tissue (SAT) in obese adolescents with a High VAT/SAT (visceral adipose tissue/subcutaneous adipose tissue) ratio translates functionally into a reduced in vivo triglyceride (TG) synthesis and adipocyte proliferation, which in turn will contribute to ectopic fat accumulation and insulin resistance (IR). To test whether the storage capacity of gluteal SAT is linked to the level of VAT/SAT fat distribution in obese adolescents. To explore if changes in dietary fat intake (palmitate intake) alters ceramide concentration in both plasma and adipose tissue (AT) and the Inflammasome complex in the different fat distribution phenotypes and their associations with IR.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| High VAT/SAT high Palmitate Diet | Subjects with a high ratio of visceral to subcutaneous fat consuming high Palmatite oil diet for 12 weeks |
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| Low VAT/SAT | Subjects with a low ratio of visceral to subcutaneous fat |
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| Lean Controls | Lean control | ||
| High VAT/SAT- low Palmitate Diet | Subjects with a high ratio of visceral to subcutaneous fat consuming low Palmatite oil diet for 12 weeks |
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Palmitate Diet | Other | Subject with high VAT/SAT ratio will be randomized to a high or low palmitate oil diet. |
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| Measure | Description | Time Frame |
|---|---|---|
| Fat Biopsies | 1) To test whether the reduced transcription of key lipogenic/adipogenic genes in abd SAT in obese adolescents with a High VAT/SAT ratio translates functionally into a reduced in vivo TG synthesis and adipocyte proliferation, which in turn will contribute to ectopic fat accumulation and IR. | Baseline |
| Measure | Description | Time Frame |
|---|---|---|
| MRI | Visceral to Subcutaneous fat storage ratio | Baseline |
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Inclusion Criteria:
Exclusion Criteria:
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Obese adolescents
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| Name | Affiliation | Role |
|---|---|---|
| Sonia Caprio, MD | Yale University | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Yale | New Haven | Connecticut | 06511 | United States |
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| ID | Term |
|---|---|
| D063766 | Pediatric Obesity |
| D009765 | Obesity |
| ID | Term |
|---|---|
| D050177 | Overweight |
| D044343 | Overnutrition |
| D009748 | Nutrition Disorders |
| D009750 | Nutritional and Metabolic Diseases |
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Basal plasma samples for measurements of glucose and glycerol enrichment, and glucose, insulin FFAs, leptin, C-peptide, glucagon, adiponectin, cortisol, growth hormone, catecholamines and amino acids, will be collected.
| D001835 |
| Body Weight |
| D012816 | Signs and Symptoms |
| D013568 | Pathological Conditions, Signs and Symptoms |