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Brown Adipose Tissue Activity and Age

A

Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA)

Status

Completed

Conditions

Ageing
Obesity

Treatments

Other: 18-FDG PET CT scan and 123I-MIBG SPECT scan

Study type

Observational

Funder types

Other

Identifiers

NCT02130154
NL 42422.018.12 METC 2012.319

Details and patient eligibility

About

In this study the investigators aim to investigate whether the sympathetic stimulation of BAT, as assessed with a 123I-metaiodobenzylguanidine single-photon emission computed tomography computed tomography scan, differs between young and elderly subjects, as an explanation for the diminished metabolic brown adipose tissue activity in the elderly.

The investigators hypothesis is that sympathetic nervous system activity in the elderly is diminished as compared to their younger counterparts as an explanation for the diminished metabolic brown adipose tissue activity in the elderly.

Full description

The sympathetic nervous system is the primary activator of Brown Adipose Tissue.

Elderly are known to have less metabolically active brown adipose tissue as compared to their younger counterparts.

The reason for this diminished metabolic brown adipose tissue activity is unknown.

However, a lower sympathetic nervous system activation to brown adipose tissue in the elderly might explain a diminished metabolic brown adipose tissue.

Therefore, in this study, both the sympathetic nervous system activation to brown adipose tissue and the metabolic activity will be measured in young and older subjects.

sympathetic nervous system activity will be measured using 123I-metaiodobenzylguanidine single-photon emission computed tomography computed tomography scans, metabolic activity will be measured using 18F- fluorodeoxyglucose positron emission tomography CT scans.

Enrollment

16 patients

Sex

Male

Ages

18 to 65 years old

Volunteers

Accepts Healthy Volunteers

Inclusion criteria

  • Male
  • Caucasian origin
  • Subjects should be able and willing to give informed consent
  • 18-65 years old
  • BMI range of 19-27 kg/m2

Exclusion criteria

  • Renal failure (creatinine>135mmol/l)
  • Daily use of prescription medication
  • Prior participation in a research protocol involving radiation exposure in the last 2 years

Trial design

16 participants in 2 patient groups

Young males
Description:
Healthy, Lean, Caucasian, Young males
Treatment:
Other: 18-FDG PET CT scan and 123I-MIBG SPECT scan
Old males
Description:
Healthy, Lean, Caucasian, Older males
Treatment:
Other: 18-FDG PET CT scan and 123I-MIBG SPECT scan

Trial contacts and locations

1

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Data sourced from clinicaltrials.gov

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