alexa Thermal Fourier Transform Infrared Technique Quickly De
ISSN : 2153-2435

Pharmaceutica Analytica Acta
Open Access

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Research Article

Thermal Fourier Transform Infrared Technique Quickly Detects an Early Onset of Glycation-Induced Conformational Changes of Human Serum Albumin

Yu-Ting H1,2, Hui-Fen L2, Shun-Li W3 and Shan-Yang L1*

1Department of Biotechnology and Pharmaceutical Technology, Yuanpei University of Medical Technology, Hsin Chu, Taiwan, ROC

2Department of Biochemical Science and Technology, National Chiayi University, Chiayi, Taiwan, ROC

3Department of Applied Chemistry, National Chiayi University, Chiayi, Taiwan, ROC

*Corresponding Author:
Shan-Yang Lin
Department of Biotechnology and Pharmaceutical Technology
Yuanpei University of Medical Technology, No. 306
Yuanpei street, Hsin Chu 30015, Taiwan, ROC
Tel: +886-3-6102439
Fax: +886-3-6102328
E-mail: [email protected]

Received date: October 27, 2016; Accepted date: November 14, 2016; Published date: November 16, 2016

Citation: Yu-Ting H, Hui-Fen L, Shun-Li W, Shan-Yang L (2016) Thermal Fourier Transform Infrared Technique Quickly Detects an Early Onset of Glycation-Induced Conformational Changes of Human Serum Albumin. Pharm Anal Acta 7:512. doi: 10.4172/2153-2435.1000512

Copyright: © 2016 Yu-Ting H, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 

Abstract

Numerous potential inhibitors for prevention of advanced glycation end products (AGEs) formation have been extensively investigated for their in vitro and in vivo features, but it would spend a lot of time studying. In the present study, a unique thermal Fourier Transform Infrared (FTIR) combined system as an accelerated method was attempted to simultaneously determine the thermal-dependent conformational changes of human serum albumin (HSA) in the HSA-ribose mixture and examine the onset of the structural transformation from α-helix to β-sheet structures with or without AGEs inhibitors used. The present results clearly indicate that native HSA had an onset temperature at 96°C for the irreversible thermal-induced structural transition from α-helices to β-sheets, whereas HSA-ribose mixture exhibited its onset temperature near at 78°C due to the early occurrence of glycation. However, the onset temperature of the α-helix to β-sheet transition was gradually changed from 78°C to 96°C by increasing the amount of sodium diclofenac or inositol, which was closed to that of the onset temperature of native HSA. This implies that the thermal-induced transition from α-helix to β-sheet for HSA in the HSA-ribose mixture was effectively prevented after adding sodium or inositol. The present study also suggests that this thermal FTIR technique not only rapidly accelerates the conformational changes of HSA-ribose mixture but also directly detects onset temperature of the α-helix to β-sheet transition in real time. This unique thermal FTIR combined system could be a useful tool to screen and evaluate quickly the glycation-induced conformational changes of proteins in a one-step process.

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