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helingling: ½ð±Ò+10, ¶àлÁË 2015-04-10 22:11:13
Ðľ²_ÒÀÈ»: LS-EPI+1, ¸ÐлӦÖú 2015-04-10 22:11:39
helingling: ½ð±Ò+10, ¶àлÁË 2015-04-10 22:11:13
Ðľ²_ÒÀÈ»: LS-EPI+1, ¸ÐлӦÖú 2015-04-10 22:11:39
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µÚ 1 Ìõ£¬¹² 1 Ìõ ±êÌâ: Spectroscopic investigation on the food components-drug interaction: The influence of flavonoids on the affinity of nifedipine to human serum albumin. ×÷Õß: Wang, Xin; Liu, Yang; He, Ling-Ling; Liu, Bin; Zhang, Si-Yi; Ye, Xiu; Jing, Jiao-Jiao; Zhang, Jin-Feng; Gao, Ming; Wang, Xin À´Ô´³ö°æÎï: Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association ¾í: 78 Ò³: 42-51 DOI: 10.1016/j.fct.2015.01.026 ³ö°æÄê: 2015-Apr ÕªÒª: Nifedipine (NDP) is used extensively for the clinical treatment of a number of cardiovascular diseases. Herein, the interaction between human serum albumin (HSA) and NDP and the influence of flavonoids, rutin and baicalin, on their binding properties were investigated in vitro by means of fluorescence and absorption spectroscopy. The fluorescence of HSA was quenched remarkably by NDP and the quenching mechanism was considered as static quenching by forming a complex. The results of thermodynamic parameters indicate that both hydrogen bonds and hydrophobic interactions play the main role in the binding process and the binding process was spontaneous. The binding distance between the amino acid residue of HSA and NDP is 2.608nm, which indicates that the energy transfer from HSA to NDP can occur with high probability. The decreased association constants and the increased binding distance of NDP binding to HSA in the presence of flavonoids were both due to their competitive binding to the site I of HSA. The results obtained from synchronous fluorescence and three-dimensional fluorescence spectra showed that the interaction between HSA and NDP caused the conformational changes of HSA and the synergism effects of NDP and flavonoids induced the further conformational changes of HSA. Copyright 2015 Elsevier Ltd. All rights reserved. PubMed ID: 25656645 ÎÄÏ×ÀàÐÍ: Journal Article ÓïÖÖ: English µØÖ·: School of Pharmaceutical Sciences, Liaoning University, Shenyang 110036, China. ·ÖÖ÷Ìâ×Ó¿â: Index Medicus ¹Ø¼ü´ÊÁбí: Flavonoids; Fluorescence spectroscopy; Food components-drug interaction; Human serum albumin; Nifedipine ISSN: 1873-6351 NLM Ψһ ID: 8207483 ¹ú¼Ò/µØÇø: England ״̬: In-Data-Review ´´½¨ÈÕÆÚ: 23 Mar 2015 µç×Ó³ö°æ: 02 Feb 2015 µ«ÊDZ»Index Medicus×Ó¿âÊÕ¼ ʵ¼ÊÉÏ»¹Î´±»SCIÊÕ¼ ÏÖÔÚFood and chemical toxicology : an international journal published for the British Industrial Biological Research AssociationÕâ¸öÆÚ¿¯ÊÕ¼µ½ ¾í: 77 ÄãµÄ¹À¼Æ¿ìÁË |

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