Vascular Reactivity in Metabolic Syndrome and Diabetic Patients Using Diffuse Optical Spectroscopy

This study has been completed.
Beckman Laser Institute University of California Irvine
Information provided by (Responsible Party):
Montana Compton, University of California, Irvine Identifier:
First received: November 14, 2008
Last updated: November 5, 2013
Last verified: November 2013

This is a pilot study to determine whether changes in tissue oxygenation, oxygen metabolism, and indicators of tissue damage can non-invasively be quantified using DOS in patients with Metabolic Syndrome, patients with both Type I DM, Type II DM, and in non-diseased subjects.

Condition Intervention
Diabetes Mellitus
Device: Diffuse Optical Spectroscopy

Study Type: Observational
Study Design: Observational Model: Case-Only
Time Perspective: Prospective
Official Title: Diffuse Optical Spectroscopy Measure Microvascular Changes in Metabolic Syndrome and Diabetes Mellitus in Order to Assess Cardiovascular Disease Risk.

Resource links provided by NLM:

Further study details as provided by University of California, Irvine:

Primary Outcome Measures:
  • To monitor microvascular changes in patients with Metabolic Syndrome and with DM to assess their disease progression and cardiovascular risks. [ Time Frame: 4 weeks ] [ Designated as safety issue: No ]

Enrollment: 50
Study Start Date: November 2008
Study Completion Date: November 2013
Primary Completion Date: November 2013 (Final data collection date for primary outcome measure)
Intervention Details:
    Device: Diffuse Optical Spectroscopy
Detailed Description:

The researchers want to use DOS as a means to monitor changes in the microvasculature of patients with Metabolic Syndrome and DM, and patients with DPN, versus non-diseased and predisposed subjects by evaluating the changes in oxygen metabolism. This will be done by measuring the changes in the concentration and oxygen saturation of hemoglobin in the microvasculature under stress, for example, during exercise and in response to changes in breathing habits. The sensitivity of DOS to tissue hemodynamics provides an impressive arena of useful clinical applications..


Ages Eligible for Study:   45 Years to 75 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population

primary care clinic, community sample


Inclusion Criteria:

  • Adult ages of 45 to 75
  • Have been clinically diagnosed with Type II Diabetes Mellitus
  • Have a diagnosis of Metabolic Syndrome

Exclusion Criteria:

  • taking light-sensitive drugs for use in photodynamic therapy
  • pregnant
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Please refer to this study by its identifier: NCT00793481

United States, California
Beckman Laser Institute Medical clinic
Irvine, California, United States, 92612
Sponsors and Collaborators
Montana Compton
Beckman Laser Institute University of California Irvine
Principal Investigator: Ping H Wang, M.D. Joslin Diabetes Center,UCI
  More Information

No publications provided

Responsible Party: Montana Compton, Administrative Nurse Research Coordinator Beckman Laser Institute, University of California, Irvine Identifier: NCT00793481     History of Changes
Other Study ID Numbers: LAMMP-DOS-RR01192-29
Study First Received: November 14, 2008
Last Updated: November 5, 2013
Health Authority: United States: Institutional Review Board

Keywords provided by University of California, Irvine:
Metabolic Syndrome

Additional relevant MeSH terms:
Diabetes Mellitus
Metabolic Syndrome X
Endocrine System Diseases
Glucose Metabolism Disorders
Insulin Resistance
Metabolic Diseases processed this record on May 21, 2015