EXAFS study on the local atomic structures around iron in glycosylated haemoglobin

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海原子核所2003年前

	EXAFS study on the local atomic structures around iron in glycosylated haemoglobin
	Wu, ZH ; Benfield, RE ; Wang, YS（王荫松） ; Guo, L ; Tan, MG（谈明光） ; Zhang, HD ; Ge, YX ; Grandjean, D
刊名	PHYSICS IN MEDICINE AND BIOLOGY
	2001
卷号	46 期号:3 页码:N71
ISSN号	0031-9155
英文摘要	Samples with 5.1%, 9.8% and 15.3% HbA1c were extracted from normal subjects and patients with slight and serious diabetes respectively. Extended x-ray absorption fine structure spectra of Fe K absorption were collected at the EXAFS experimental station of the Beijing Synchrotron Radiation Facility. The step-by-step fluorescent mode was employed with a count time of 10 s per point. Several independent scans were averaged to eliminate the statistical noise. Reference backscattering amplitudes and phaseshifts were calculated using the curve wave theory (FEFF code) of EXAFS. Apart from the nitrogen neighbours around the central iron atom, oxygen neighbours are also found. The Fe-N bond length increases by about 0.02 Angstrom for the sample with 15.3% HbA1c compared with the others, but the Fe-O bond length is almost unchanged. With increasing of HbA1c concentration, the content of Hb increases and the content of HbO(2) decreases. This demonstrates that the glycosylation of haemoglobin will decrease its ability to carry oxygen.
收录类别	SCI
语种	英语
WOS记录号	WOS:000167520400024
公开日期	2012-09-25
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/9966]
专题	上海应用物理研究所_中科院上海原子核所2003年前
推荐引用方式 GB/T 7714	Wu, ZH,Benfield, RE,Wang, YS,et al. EXAFS study on the local atomic structures around iron in glycosylated haemoglobin[J]. PHYSICS IN MEDICINE AND BIOLOGY,2001,46(3):N71.
APA	Wu, ZH.,Benfield, RE.,Wang, YS.,Guo, L.,Tan, MG.,...&Grandjean, D.(2001).EXAFS study on the local atomic structures around iron in glycosylated haemoglobin.PHYSICS IN MEDICINE AND BIOLOGY,46(3),N71.
MLA	Wu, ZH,et al."EXAFS study on the local atomic structures around iron in glycosylated haemoglobin".PHYSICS IN MEDICINE AND BIOLOGY 46.3(2001):N71.