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The goal of this research is to develop better tools for diagnosing illness of the feet and legs of people who have diabetes. Investigators will use thermal videos of the foot to aid in the refinement of a system designed to detect signs of diabetic peripheral neuropathy (DPN). The team of investigators will also look at diabetic eye disease and how it might relate to diabetic foot disease.
Full description
This study focuses on further development and testing of a microvascular functional imaging system, a computer-based system for screening thermal video images, designed to detect biomarkers of diabetic peripheral neuropathy (DPN). Additionally, severity levels of diabetic retinopathy (DR) will be compared with those of DPN.
All participants in this study will undergo foot exams, thermal imaging of the foot, and standard retinal imaging. These non-invasive assessments will be performed at an initial study visit. Some of the participants will be offered additional study visits. One of the additional visits involves a standard nerve conduction velocity assessment by a neurologist, the other involves a DPN exam by a podiatrist.
Portions of the study take place at University of New Mexico Health Sciences Center (UNM HSC). The research utilizes services of the Clinical Translational Science Center (CTSC).
The study is approved by University of New Mexico Health Sciences Center's Human Research Review Committee (HRRC), which coordinates and supports the activities of the three federally mandated Human Research Review Committees (HRRCs) responsible for reviewing and approving all human research.
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Inclusion criteria
• Must be non-diabetic or diagnosed as diabetic for at least 5 years
Exclusion criteria
history of chemotherapy
surgery below the knee within the last 2 years
fractures below the know within the last 2 years
history of stroke
body mass index (BMI) greater than 35
history of heart failure
peacemaker or implantable cardiovascular defibrillator
high blood pressure (over 180/100)
end-stage renal (kidney) disease or renal (kidney) transplant
peripheral edema greater than 2+ (swelling of the feet or hands)
diabetic foot ulcers
foot sores
Raynaud's phenomenon
tobacco use within the last month.
treatment with glucocorticoids, including:
331 participants in 3 patient groups
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Data sourced from clinicaltrials.gov
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