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Regulation of muscle oxidative phenotype by hypoxia in Chronic Obstructive Pulmonary Disease and Chronic Heart Failure

Regulation of muscle oxidative phenotype by hypoxia in Chronic Obstructive Pulmonary Disease and Chronic Heart Failure - Regulation of muscle oxidative phenotype

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
NL-OMON
Registry ID
NL-OMON33801
Enrollment
90
Registered
2008-10-06
Start date
2009-03-12
Completion date
Unknown
Last updated
2024-05-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

heart failure lung emphysema

Interventions

None listed

Sponsors

Universiteit Maastricht
Lead Sponsor

Eligibility

Age
18 Years to 99 Years

Inclusion criteria

Inclusion criteria: COPD patients: inclusion criterion for COPD patients is COPD according to GOLD criteria. Heart failure patients: inclusion criterion for CHF patients is diagnosis heart failure with an ejection fraction

Exclusion criteria

Exclusion criteria: COPD patients: exclusion criteria for COPD patients are malignancy, cardiac failure, distal arteriopathy, recent surgery, severe endocrine, hepatic or renal disorders, oxygen therapy and recent participation in a revalidation program (previous 6 months). CHF patients: exclusion criteria for CHF patients are unstable disease, unstable angina pectoris, correctable cause of heart failure or valvular heart disease, restrictive or hypertrophic cardiomyopathy, malignancy, pulmonary disease (including primary pulmonary hypertension and COPD), distal arteriopathy, recent surgery, severe endocrine, hepatic or renal disorders and recent participation in a revalidation program (previous 6 months). Patients with artificial valves, known left ventricular thrombi and mitral stenosis will also be excluded.

Design outcomes

Primary

MeasureTime frame
Main outcome parameters are the skeletal muscle expression levels of HIF-1a, PGC-1 and PPARs in the different groups.

Secondary

MeasureTime frame
Also, markers of hypoxia such as vascular endothelial growth factor, carbonic anhydrase-9 and heme oxygenase-1 will be measured. Metabolic enzyme activities and muscle fiber type proportions will be determined to assess oxidative phenotype. Outcome parameters regarding adipose tissue are adipocyte size and cell surface, expression levels of markers for hypoxia like HIF-1a and GLUT-1, and expression levels of inflammatory mediators like TNF-a, IL-6, leptin and adiponectin.

Countries

Netherlands

Outcome results

None listed

Source: NL-OMON (via WHO ICTRP)