Nissl staining and infarct volume measurement

XX Xin Xu
WG Weiwei Gao
LL Lei Li
JH Jiheng Hao
BY Bin Yang
TW Tao Wang
LL Long Li
XB Xuesong Bai
FL Fanjian Li
HR Honglei Ren
MZ Meng Zhang
LZ Liyong Zhang
JW Jiyue Wang
DW Dong Wang
JZ Jianning Zhang
LJ Liqun Jiao
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Nissl staining was used to measure volume of infarct [26]. Briefly, the coronal cryosections of the brain (20-μm thick, 1-mm intervals) were stained with cresyl violet (Cat. G1430; Solarbio, Beijing, China) for 10 min at 60 °C. Images were captured and analyzed using National Institute of Health (NIH) ImageJ software (Version 1.46r; Bethesda, MD, USA). The infarct area was calculated as non-infarcted contralateral hemisphere area minus surviving area of infarcted ipsilateral hemisphere. Infarct (V1) and contralateral hemisphere (V2) volumes were computed by numeric integration of sequential regions, and the results were presented as: Infarct volume (%) = V1/V2 × 100%.

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