Jiayu Zheng

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The Escherichia coli (E. coli) prokaryotic expression system is widely used in the field of biology. The currently adopted processes for inducing cell wall rupture, in order to release the target protein, are complex and cumbersome. We developed an auto-inducible E. coli lysis system that is regulated by exogenous magnesium ion (Mg(2+)) concentration. This(More)
BACKGROUND This study aimed to retrospectively investigate our experience of surgical treatment for acute type A aortic dissection in patients older than 70 years. METHODS From September 2005 to January 2012, eleven patients who were older than 70 years underwent surgical treatment for type A aortic dissection at our center and were included in this(More)
OBJECTIVES This study introduces a newly designed transcatheter aortic valve system, the J-Valve system, and evaluates its application in patients with predominant aortic regurgitation without significant valve calcification. We also report the early results of one of the first series of transapical implantations of this device and aim to offer guidance on(More)
Mesenchymal stem cell (MSC) transplantation has been proposed as a promising therapeutic strategy for ischemic myocardium repair following myocardial infarction. Differentiation of MSCs into cardiomyocyte‑like cells prior to cell transplantation is advantageous in improving their potential clinical benefits for cardiac repair. In the present study, we(More)
BACKGROUND This study aimed to analyze the mortality and morbidity of patients undergoing open aortic arch reconstruction for acute type A aortic dissection. METHODS Between September 2005 and January 2012, 267 consecutive patients underwent open aortic arch reconstruction for acute type A aortic dissection at our center. The mean age was 51.2 ± 10.0(More)
Anomalous origin of the left main coronary artery from the anterior aortic sinus is a rare but potentially lethal congenital disease. We report two adolescent patients with this anomaly who underwent surgical plasty using a saphenous vein patch, rather than unroofing or fenestration technique, as was typically done. This report suggests that surgical(More)
OBJECTIVE To illuminate the response of mouse macrophage cell line RAW264.7 after infected with Bacille Calmette-Guerin (BCG) in vitro. METHODS We analyzed the morphology and expression of co-stimulatory molecules on the surface of RAW264. 7 after exposure to BCG for 23 hours. Then during the different culture time after discard the BCG in the(More)
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