- ICH GCP
- US Clinical Trials Registry
- Klinisk forsøg 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.
Studieoversigt
Status
Betingelser
Intervention / Behandling
Detaljeret beskrivelse
Undersøgelsestype
Tilmelding (Faktiske)
Kontakter og lokationer
Studiesteder
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Connecticut
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New Haven, Connecticut, Forenede Stater, 06510
- Yale University
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Deltagelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Prøveudtagningsmetode
Studiebefolkning
Beskrivelse
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
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Observationsmodeller: Kohorte
- Tidsperspektiver: Fremadrettet
Kohorter og interventioner
Gruppe / kohorte |
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.
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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
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Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
gene expression
Tidsramme: Baseline
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gene mutation allele variation identification measure via gene extraction
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Baseline
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Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
hepatic fat content
Tidsramme: 2 years
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Abdominal MRI to measure liver fat and subcutaneous and visceral fat ratio done at baseline and 2 year follow up
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2 years
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glucose tolerance
Tidsramme: 2 years
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glucose tolerance status measured by 3 hour oral glucose tolerance test done at baseline and 2 year follow up
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2 years
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Andre resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
DNA gene sequencing of intestinal bacteria's
Tidsramme: 2 years
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Measure microbiota diversity via stool samples to understand variance of triglycerides accumulation in liver
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2 years
|
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Use liver biopsy specimen to assess differences in gene expression, as well as inflammation.
Tidsramme: As indicated by Pediatric Hepatolgist
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liver biopsy tissue obtained when subject is scheduled for pre-ordered biopsy by hepatologist
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As indicated by Pediatric Hepatolgist
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Samarbejdspartnere og efterforskere
Sponsor
Samarbejdspartnere
Efterforskere
- Ledende efterforsker: Sonia Caprio, M.D., Yale University
Publikationer og nyttige links
Generelle 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.
Datoer for undersøgelser
Studer store datoer
Studiestart
Primær færdiggørelse (Faktiske)
Studieafslutning (Faktiske)
Datoer for studieregistrering
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først opslået (Skøn)
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
- 1104008388
- R01HD040787 (U.S. NIH-bevilling/kontrakt)
Plan for individuelle deltagerdata (IPD)
Planlægger du at dele individuelle deltagerdata (IPD)?
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