Enabling hyperpolarized (129) Xe MR spectroscopy and imaging of pulmonary gas transfer to the red blood cells in transgenic mice expressing human hemoglobin.
Enabling hyperpolarized (129) Xe MR spectroscopy and imaging of pulmonary gas transfer to the red blood cells in transgenic mice expressing human hemoglobin.
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DOI:
10.1002/mrm.24915
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发表时间:
2013-11
影响因子:
3.3
通讯作者:
Driehuys, Bastiaan
中科院分区:
文献类型:
--
作者:
Freeman, Matthew S.;Cleveland, Zackary I.;Qi, Yi;Driehuys, Bastiaan
关键词:
Hyperpolarized (HP) 129Xe gas in the alveoli can be detected separately from 129Xe dissolved in pulmonary barrier tissues (blood plasma and parenchyma) and red blood cells (RBCs) of humans, allowing this isotope to probe impaired gas uptake. Unfortunately, mice, which are favored as lung disease models, do not display a unique RBC resonance, thus limiting the preclinical utility of 129Xe MR. Here we overcome this limitation using a commercially available strain of transgenic mice that exclusively expresses human hemoglobin. Dynamic HP 129Xe MR spectroscopy, and 3D radial MRI of gaseous and dissolved 129Xe were performed in both wild type (C57BL/6) and transgenic mice. Unlike wild type animals, transgenic mice displayed two dissolved 129Xe NMR peaks at 198 and 217 ppm, corresponding to 129Xe dissolved in barrier tissues and RBCs, respectively. Moreover, signal from these resonances could be imaged separately, using a 1-point variant of the Dixon technique. It is now possible to examine the dynamics and spatial distribution of pulmonary gas uptake by the RBCs of mice using HP 129Xe MR spectroscopy and imaging. When combined with ventilation imaging, this ability will enable translational “mouse-to-human” studies of impaired gas exchange in a variety of pulmonary diseases.
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影响因子:
3.3
作者:
Mistry, Nilesh N.;Thomas, Abraham;Kaushik, S. Sivaram;Johnson, G. Allan;Driehuys, Bastiaan
通讯作者:
Driehuys, Bastiaan
影响因子:
2.9
作者:
Imai, Hirohiko;Kimura, Atsuomi;Fujiwara, Hideaki
通讯作者:
Fujiwara, Hideaki
影响因子:
3.3
作者:
Huang, Kewu;Mitzner, Wayne;Tankersley, Clarke G.
通讯作者:
Tankersley, Clarke G.
影响因子:
30.8
作者:
DAVIDSON, DJ;DORIN, JR;PORTEOUS, DJ
通讯作者:
PORTEOUS, DJ
影响因子:
3.3
作者:
CHEN, RYZ;FAN, FC;CHIEN, S
通讯作者:
CHIEN, S