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Alternate Non-invasive Method To Diagnose Kidney Diseases Using Raman Spectroscopy

by Julia Samuel on  June 1, 2015 at 12:00 PM Research News   - G J E 4
US-based scientists have developed a new less-invasive diagnostic tool to identify kidney diseases and assess its severity level using Raman Spectroscopy. Physicians traditionally use renal biopsy to directly observe kidney function.
Alternate Non-invasive Method To Diagnose Kidney Diseases Using Raman Spectroscopy
Alternate Non-invasive Method To Diagnose Kidney Diseases Using Raman Spectroscopy
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"Raman spectroscopy provides molecular fingerprints that enable non-invasive or minimal invasive and label-free detection for the quantification of subtle molecular changes," researchers said. It has the potential to largely reduce the complexity in diagnosing and monitoring anti-GBM (glomerular basement membrane) diseases.

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Professor Chandra Mohan of the University of Houston and his colleague Wei-Chuan Shih have found that there is a difference in signals obtained from a healthy and a diseased kidney, which helps to diagnose the status of a kidney in a patient.

"There are some molecules that must be responsible for these different Raman signals, but we don't need to know what those molecules may be. As long as there's a difference in the signal, that's good enough — you can easily differentiate between a diseased kidney's Raman signal and a healthy kidney's Raman signal," said Mohan.

Mohan added that, being minimal invasive and often non-invasive, the new diagnostic method also enables a label-free detection for the quantification of subtle molecular changes.

"By adapting multivariate analysis to Raman spectroscopy, we have successfully differentiated between the diseased and the non-diseased with up to 100% accuracy, and among the severely diseased, the mildly diseased and the healthy with up to 98% accuracy," said researchers Mohan and Shih.

Source: Medindia
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