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Neuropathy of undetermined etiology is a common disease that usually starts at the sixth to seventh decades. It can cause significant pain and disability. Previous studies have demonstrated increased prevalence of abnormal glucose handling, when these patients were tested with oral glucose tolerance test (OGTT). On the other hand, many of the neuropathy patients suffer from pain and depression and obesity; and abnormal OGTT in these patients may be the result of these factors. We assume that if abnormal handling of blood sugar is the cause of neuropathy, these patients may have evidence of damage to other organs (like eyes and kidneys) as a result of abnormal blood sugar. In a pilot study, we will determine the incidence of subtle damage to kidneys, eyes and also look for other factors associated with abnormal glucose handling in patients with neuropathy and abnormal OGTT and compare it to age matched controls with normal OGTT.
Allocation: Non-Randomized, Control: Active Control, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Diagnostic
Idiopathic Axonal Polyneuropathy
Optical coherence tomography,Fluorescein angiography
University of Chicago
University of Chicago
Published on BioPortfolio: 2014-08-27T03:48:37-0400
The investigators aim to evaluate the efficacy of the new Optical Coherence Tomography based Angiography (OCT-A) softwares in the diagnosis and management of glaucoma.
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Comparison of OCTA to conventional imaging modalities for the diagnosis of eye diseases
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An imaging method using LASERS that is used for mapping subsurface structure. When a reflective site in the sample is at the same optical path length (coherence) as the reference mirror, the detector observes interference fringes.
Visualization of a vascular system after intravenous injection of a fluorescein solution. The images may be photographed or televised. It is used especially in studying the retinal and uveal vasculature.
A non-invasive method that uses a CT scanner for capturing images of blood vessels and tissues. A CONTRAST MATERIAL is injected, which helps produce detailed images that aid in diagnosing VASCULAR DISEASES.
The use of light interaction (scattering, absorption, and fluorescence) with biological tissue to obtain morphologically based information. It includes measuring inherent tissue optical properties such as scattering, absorption, and autofluorescence; or optical properties of exogenous targeted fluorescent molecular probes such as those used in optical MOLECULAR IMAGING, or nontargeted optical CONTRAST AGENTS.
Non-invasive method of vascular imaging and determination of internal anatomy without injection of contrast media or radiation exposure. The technique is used especially in CEREBRAL ANGIOGRAPHY as well as for studies of other vascular structures.
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Neurology - Central Nervous System (CNS)
Alzheimer's Disease Anesthesia Anxiety Disorders Autism Bipolar Disorders Dementia Epilepsy Multiple Sclerosis (MS) Neurology Pain Parkinson's Disease Sleep Disorders Neurology is the branch of me...
Pain is defined by the International Association for the Study of Pain as “an unpleasant sensory and emotional experience associated with actual or potential tissue damage or described in terms of such damage”. Some illnesses can be excruci...