ABSTRACT
Objective:To explore the effect of sulforaphane (SFN) preconditioning on the cold myocardial ischemia-reperfusion injury (IRI) in the rats through PI3K/Akt signaling pathway.Methods:Sixty-four health male Sprague-Dawley (SD) rats were randomly divided into cold IRI group,SFN group,LY (LY294002) + cold IRI group,and LY+SFN group (n=16).The allogeneic heterotopic heart transplantation model was established by donor heart into recipient abdomen.The myocardium tissue was taken 24 h after reperfusion for the detection of histological changes using HE staining.The expression levels of Akt,p-Akt,Bax and Bcl-2 proteins were detected by immunohistochemistry and Western boltting methods.Results:The morphological results showed that the myocardium tissue damage was serious in cold IRI group and LY+cold IRI group,it was light in SFN group;the myocardium tissue damage of the rats in SFN+ LY group was ranged between cold IRI group and SFN group.Compared with IRI group,the expression levels of p-Akt protein and Bcl-2 protein in SFN group were increased (P＜0.05),and the expression level of Bax protein was decreased (P＜0.05).After treatment of blockage LY294002,compared with LY-+-cold IRI group,the expression level of p-Akt protein in LY-+-SFN group was not statistically significant (P＞0.05),the expression level of Bcl2 protein was increased (P＜0.05),the expression levels of Bax protein was decreased),and the ratio of Bcl-2/Bax was also increased (P＜0.05).Conclusion:SFN may attenuate cold IRI of heart transplantation through PI3K/Akt signaling pathway in the rats.
ABSTRACT
Objective:To explore the effect of sulforaphane (SFN) preconditioning on the cold myocardial ischemia-reperfusion injury (IRI) in the rats through PI3K/Akt signaling pathway.Methods:Sixty-four health male Sprague-Dawley (SD) rats were randomly divided into cold IRI group,SFN group,LY (LY294002) + cold IRI group,and LY+SFN group (n=16).The allogeneic heterotopic heart transplantation model was established by donor heart into recipient abdomen.The myocardium tissue was taken 24 h after reperfusion for the detection of histological changes using HE staining.The expression levels of Akt,p-Akt,Bax and Bcl-2 proteins were detected by immunohistochemistry and Western boltting methods.Results:The morphological results showed that the myocardium tissue damage was serious in cold IRI group and LY+cold IRI group,it was light in SFN group;the myocardium tissue damage of the rats in SFN+ LY group was ranged between cold IRI group and SFN group.Compared with IRI group,the expression levels of p-Akt protein and Bcl-2 protein in SFN group were increased (P＜0.05),and the expression level of Bax protein was decreased (P＜0.05).After treatment of blockage LY294002,compared with LY-+-cold IRI group,the expression level of p-Akt protein in LY-+-SFN group was not statistically significant (P＞0.05),the expression level of Bcl2 protein was increased (P＜0.05),the expression levels of Bax protein was decreased),and the ratio of Bcl-2/Bax was also increased (P＜0.05).Conclusion:SFN may attenuate cold IRI of heart transplantation through PI3K/Akt signaling pathway in the rats.
ABSTRACT
Objective To improve the diagnosis and surgical management of pulmonary aspergilloma.Methods Twenty-four patients underwent surgical treatment for pulmonary aspergilloma were enrolled in our study from April 2005 to May 2012 at the second hospital of Xiamen.The information of all cases was recorded.Results There were 18 males and 6 females in all subjects,and their age ranged from 22 to 67 year.The surgical outcome were 15 lobectomies,3 segmentectomies or wedge resections,1 right upper and middle lobectomy,1 radical debridement,4 pneumonectomy.Results There was no preoperative mortality.Seven cases (29.2％) developed complications in this series including 1 postoperative bleeding,1 bleeding during operation,2 pulmonary infection,1 bronchial fistula,1 pulmonary reexpansion insufficiency,1 wound infection.Conclusion Surgical resection of pulmonary lesion is the most effective method for pulmonary aspergilloma.Moreover strengthening the perioperative management could decrease the morbidity and mortality.
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OBJECTIVE:To establish polarimetry for the assaying of the principal agent in amikacin sulfate injection. METHODS:The optical rotation of amikacin sulfate was determined with 1dm determination tube with water as solvent at a wavelength of 589.4nm.RESULTS:The linear range of amikacin was 1～20mg/ml(r=0.9 999);The average recovery rate was 99.8%(RSD=0.89%,n=5).CONCLUSION:The method is simple,fast and accurate,and it can be used for the quality control of amikacin sulfate injection.