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DefinitionDiabetic retinopathy is a microvascular complication of diabetes affecting the retinal blood vessels.Risk FactorsDiabetic retinopathy is present in almost all individuals with type 1 diabetes and more than 60% of those with type 2 diabetes after two decades of disease.The risk increases with poor glycemic control, hypertension, dyslipidemia, smoking, pregnancy, and puberty.Although cataracts and glaucoma are also more frequent in people with diabetes, retinopathy remains the leading...

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Refractometry as a tool in diabetic studies.

S Kavitha¹, V R Murthy

¹Department of Biotechnology, Acharaya Nagarjuna University, Guntur, Andhra Pradesh, India.

Ancient Science of Life

|May 5, 2012

Summary

This summary is machine-generated.

Refractive index measurements can diagnose diabetes. Increased urine refractive index linearly correlates with higher blood sugar levels, offering a simple diagnostic tool.

Keywords:

Diabetes Refractive index abbe refractometer spectrometer

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Area of Science:

Analytical Chemistry
Clinical Chemistry
Biophysics

Background:

Refractive index and molar refraction are key indicators of substance purity and crucial in solution chemistry.
Foreign substances significantly alter the refractive index of solutions.

Purpose of the Study:

To investigate the variation of refractive indices in pure glucose solutions with concentration.
To extend this principle to analyze urine samples from diabetic patients for diagnostic purposes.

Main Methods:

Spectrometry and Abbe refractometry were employed to measure refractive indices.
Urine samples from diabetic patients with varying sugar concentrations and age groups were analyzed.

Main Results:

A linear relationship was observed between increased refractive index and sugar concentration in urine.
The observed changes can be described by the equation: n=n(o) [l+0.00251og (a s)(1/4)] [l+0.031og0.011C].

Conclusions:

Refractometry is a viable and effective tool for diagnosing diabetic levels.
A simple calibration curve plotting refractive index increment (Δn) against disease level can aid diagnosis.