NCT03225677

Novel Tracer Methods to Evaluate Muscle Protein Metabolism in Cirrhosis

Multiple Tracer Using Single Muscle Biopsy Technique in Evaluating Protein Synthesis and Break Down in Muscles of Cirrhotic Patients

• Status: Recruiting
• Phase: —
• Study type: Observational
• Enrollment: 20 (estimated)
• Sponsor: The Cleveland Clinic · Academic / Other
• Sex: All
• Age: 18 Years
• Healthy volunteers: —

Summary

To determine the rate and mechanisms of skeletal muscle protein synthesis and breakdown in cirrhotic patients by using multiple tracers and single muscle biopsies.

Detailed description

The goal of this study is to identify the molecular regulatory mechanisms that result in loss of skeletal muscle in cirrhotic patients. Current strategies involve prolonged tracer infusion and multiple muscle biopsies. We will use an innovative approach to determine the rates of skeletal muscle protein synthesis and breakdown using multiple tracers administered at short intervals followed by a single muscle biopsy. These studies are likely to provide a conceptual advance in determining the cellular and molecular responses of the skeletal muscle in cirrhosis.

Conditions

• Cirrhosis

Interventions

Type	Name	Description
PROCEDURE	blood draw and muscle biopsy	One venous catheter will be used for bolus injection of multiple labeled AA at the beginning .The second venous catheter will inserted in the other arm for 5 ml of arterialized venous blood draw.Following the infusions, a single muscle biopsy will be performed from the vastus lateralis of the thigh using the Bergstromm needle.

Timeline

• Start date: 2017-08-03
• Primary completion: 2027-09-30
• Completion: 2027-09-30
• First posted: 2017-07-21
• Last updated: 2025-12-01

Locations

1 site across 1 country: United States