- ICH GCP
- Amerikanska kliniska prövningsregistret
- Klinisk prövning NCT01966627
Genetics of Fatty Liver Disease in Children
Genetics of Fatty Liver Disease in Childhood Obesity.
This is a study to investigate genetic predisposition to hepatic steatosis and the expression of gluconeogenic and lipogenic genes in livers of obese children and adolescents.
Hypothesis 1: Common variants recently associated with variation in plasma TG levels identified in Genome Wide Association Studies (GWAS) (such as GCKR, PNPLA3) can affect accumulation of fat and subsequent development of Non Alcoholic Fatty Liver Disease (NAFLD). Gene variants act in additive or synergistic manner with progressive liver fat accumulation per additional risk allele.
Hypothesis 2: With increase in hepatic fat content NASH and fibrosis will increase. Furthermore, expression of lipogenic markers (SREBP1c) will increase.
Studieöversikt
Status
Betingelser
Intervention / Behandling
Detaljerad beskrivning
Studietyp
Inskrivning (Faktisk)
Kontakter och platser
Studieorter
-
-
Connecticut
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New Haven, Connecticut, Förenta staterna, 06510
- Yale University
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-
Deltagandekriterier
Urvalskriterier
Åldrar som är berättigade till studier
Tar emot friska volontärer
Kön som är behöriga för studier
Testmetod
Studera befolkning
Beskrivning
Inclusion Criteria:
- between 7 and 18 years of age,
- overweight or obese with a BMI greater than the 85th percentile for age and gender, and
- be otherwise healthy.
Exclusion Criteria:
- the use of any medication that alters liver function, blood pressure, glucose or lipid metabolism and
- no use of any antipsychotic medication
- Youth on chronic anti-inflammatory medications or who consume alcohol are also excluded.
Studieplan
Hur är studien utformad?
Designdetaljer
- Observationsmodeller: Kohort
- Tidsperspektiv: Blivande
Kohorter och interventioner
Grupp / Kohort |
Intervention / Behandling |
|---|---|
|
Pediatric NAFLD Cohort
Overweight and obese children and adolescents at risk for non alcoholic fatty liver disease will undergo oral glucose tolerance testing (ogtt), genotyping, abdominal and liver magnetic resonance imaging (mri), and will provide a stool sample at baseline and at 2 year follow up.
A small subset will undergo liver biopsy to test for hepatic steatosis and nonalcoholic steatohepatitis.
|
oral glucose tolerance test
genotyping to look for risk alleles
magnetic resonance imaging scan of abdomen and liver - abdominal and liver mri
stool sample taken to investigate metabolites
liver biopsy to examine for cellular change and steatosis
|
Vad mäter studien?
Primära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
|---|---|---|
|
gene expression
Tidsram: Baseline
|
gene mutation allele variation identification measure via gene extraction
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Baseline
|
Sekundära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
|---|---|---|
|
hepatic fat content
Tidsram: 2 years
|
Abdominal MRI to measure liver fat and subcutaneous and visceral fat ratio done at baseline and 2 year follow up
|
2 years
|
|
glucose tolerance
Tidsram: 2 years
|
glucose tolerance status measured by 3 hour oral glucose tolerance test done at baseline and 2 year follow up
|
2 years
|
Andra resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
|---|---|---|
|
DNA gene sequencing of intestinal bacteria's
Tidsram: 2 years
|
Measure microbiota diversity via stool samples to understand variance of triglycerides accumulation in liver
|
2 years
|
|
Use liver biopsy specimen to assess differences in gene expression, as well as inflammation.
Tidsram: As indicated by Pediatric Hepatolgist
|
liver biopsy tissue obtained when subject is scheduled for pre-ordered biopsy by hepatologist
|
As indicated by Pediatric Hepatolgist
|
Samarbetspartners och utredare
Sponsor
Samarbetspartners
Utredare
- Huvudutredare: Sonia Caprio, M.D., Yale University
Publikationer och användbara länkar
Allmänna publikationer
- Burgert TS, Taksali SE, Dziura J, Goodman TR, Yeckel CW, Papademetris X, Constable RT, Weiss R, Tamborlane WV, Savoye M, Seyal AA, Caprio S. Alanine aminotransferase levels and fatty liver in childhood obesity: associations with insulin resistance, adiponectin, and visceral fat. J Clin Endocrinol Metab. 2006 Nov;91(11):4287-94. doi: 10.1210/jc.2006-1010. Epub 2006 Aug 15.
- Trico D, Caprio S, Rosaria Umano G, Pierpont B, Nouws J, Galderisi A, Kim G, Mata MM, Santoro N. Metabolic Features of Nonalcoholic Fatty Liver (NAFL) in Obese Adolescents: Findings From a Multiethnic Cohort. Hepatology. 2018 Oct;68(4):1376-1390. doi: 10.1002/hep.30035.
Studieavstämningsdatum
Studera stora datum
Studiestart
Primärt slutförande (Faktisk)
Avslutad studie (Faktisk)
Studieregistreringsdatum
Först inskickad
Först inskickad som uppfyllde QC-kriterierna
Första postat (Uppskatta)
Uppdateringar av studier
Senaste uppdatering publicerad (Faktisk)
Senaste inskickade uppdateringen som uppfyllde QC-kriterierna
Senast verifierad
Mer information
Termer relaterade till denna studie
Nyckelord
Ytterligare relevanta MeSH-villkor
Andra studie-ID-nummer
- 1104008388
- R01HD040787 (U.S.S. NIH-anslag/kontrakt)
Plan för individuella deltagardata (IPD)
Planerar du att dela individuella deltagardata (IPD)?
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