OBJECTIVE To explore the role of calpain in in pulmonary vascular remodeling in hypoxia induced pulmonary hypertension and the underlying mechanism.METHODS Sprague-Dawley rats were randomly divided into hypoxia group ...OBJECTIVE To explore the role of calpain in in pulmonary vascular remodeling in hypoxia induced pulmonary hypertension and the underlying mechanism.METHODS Sprague-Dawley rats were randomly divided into hypoxia group and normoxia control group.Right ventricular systolic pressure(RVSP)and mean pulmonary artery pressure(m PAP)were monitored by the method of right external jugular vein cannula.Right ventricular hypertrophy index was expressed as the ratio of right ventricular weight to left ventricular weight(left ventricle plus septum weight).Level of calpain-1,calpain-2and calpain-4 m RNA in pulmonary artery trunk were determined by real-time PCR.Expression of calpain-1,calpain-2 and calpain-4 protein was determined by Western Blot.Primary rat pulmonary arterial smooth muscle cells(PASMCs)were divided into 4 groups:normoxia control group,normoxia+MDL28170 group,hypoxia group and hypoxia+MDL28170 group.Cell proliferation was detected by MTS and flow cytometry.Level of Ki-67 and PCNA m RNA were determined by real-time PCR.RESULTS RVSP,m PAP and right ventricular remodeling index were significantly higher in the hypoxia group than those in the normoxia group.In the hypoxia group,pulmonary vascular remodeling occurred,and the expression of calpain-1,calpain-2 and calpain-4 m RNA and protein expression was increased in the pulmonary artery.MDL28170 significantly inhibited hypoxia-induced proliferation of PASMCs accompanied with decreased Ki-67and PCNA m RNA expression.CONCLUSION Calpain mediated vascular remodeling via promoting proliferation of PASMCs in hypoxia induced pulmonary hypertension.展开更多
920650 Erythrocyte membrane band 3protein and HCO<sub>3</sub><sup>-</sup>/CL<sup>-</sup> exchange functionin cor pulmonle patients. YANG Xiaojing（杨晓静）, et al. Respir Centre, Xi...920650 Erythrocyte membrane band 3protein and HCO<sub>3</sub><sup>-</sup>/CL<sup>-</sup> exchange functionin cor pulmonle patients. YANG Xiaojing（杨晓静）, et al. Respir Centre, Xinqiao Hosp,3rd Milit Med Univ, Chongqing, 630037. NatlMed J China 1992; 72（5）277-279. The changes of erythrocyte membrane band展开更多
To describe preliminary experience of percutaneous pulmonary valve implantation, in a single pulmonary branch position. Two procedures in 2 patients from a single center are described, where implantation of percutaneo...To describe preliminary experience of percutaneous pulmonary valve implantation, in a single pulmonary branch position. Two procedures in 2 patients from a single center are described, where implantation of percutaneous valves within a single pulmonary artery branch was technically successful. The procedural indication was pulmonary valve regurgitation and/or residual stenosis. The 2 patients were symptomatic. An Edwards Sapien? valve(Patient 1), and a Medtronic Melody? valve(Patient 2) were implanted. Both pts were discharged with an excellent valve function. In this report it is underlined that this modality is technically feasible and may be considered an option in patients with congenital heart defect under special circumstances.展开更多
Objective To compare the clinical characteristics and survival on Chinese patients with idiopathic pulmonary arterial hypertension(IPAH)and familiar pulmonary arterial hypertension(FPAH)during conventional therapy era...Objective To compare the clinical characteristics and survival on Chinese patients with idiopathic pulmonary arterial hypertension(IPAH)and familiar pulmonary arterial hypertension(FPAH)during conventional therapy era and targeted therapy era.Methods IPAH and FPAH patients who were referred between Jan 1999and Oct 2004 in Fuwai Hospital were defined as conventional therapy era group(before 2005 no PAH-specific drug was available in China).All patients in this展开更多
Objective To explore the values of pixel indexes (PI) with multiple-slice spiral CT low-dose two-phase scanning for assessing the pulmonary function in chronic obstructive pulmonary disease(COPD) . Methods Thirty-six ...Objective To explore the values of pixel indexes (PI) with multiple-slice spiral CT low-dose two-phase scanning for assessing the pulmonary function in chronic obstructive pulmonary disease(COPD) . Methods Thirty-six patients with COPD (COPD group) and 30 healthy people(control group) underwent展开更多
Objective To investigate the differences of clinical features,pulmonary function tests,chest imaging and prognosis between patients with idiopathic pulmonary fibrosis(IPF) combined with emphysema and without
Objective To investigate the manifestations,pulmonary function test(PFT)characteristics and imaging features of patients with nonspecific pulmonary function(NSPF).Methods All the data from the same PFT apparatus in Be...Objective To investigate the manifestations,pulmonary function test(PFT)characteristics and imaging features of patients with nonspecific pulmonary function(NSPF).Methods All the data from the same PFT apparatus in Beijing Hospital were collected from January2003 to December 2012.NSPF was defined as展开更多
Objective To study the CT features of pulmonary non-tuberculous mycobacteria (NTM) disease in patients with acquired immunodeficiency syndrome (AIDS) and explore the different CT appearances between AIDS-NTM and AIDS-...Objective To study the CT features of pulmonary non-tuberculous mycobacteria (NTM) disease in patients with acquired immunodeficiency syndrome (AIDS) and explore the different CT appearances between AIDS-NTM and AIDS-TB. Methods CT findings of pulmonary展开更多
Objective To observe the relationship between plasma levels of NT-pro BNP and pulmonary hypertension in patients with left heart failure(LHF).Methods A total of 391 LHF patients were enrolled in our study,according to...Objective To observe the relationship between plasma levels of NT-pro BNP and pulmonary hypertension in patients with left heart failure(LHF).Methods A total of 391 LHF patients were enrolled in our study,according to pulmonary arterial pressure,the patients were divided into 3 groups:Control group,the patients展开更多
基金The project supported by National Natural Science Foundation of China(81273512,81460010)by Natural Science Foundation of Jiangxi province(20142BAB215035)
文摘OBJECTIVE To explore the role of calpain in in pulmonary vascular remodeling in hypoxia induced pulmonary hypertension and the underlying mechanism.METHODS Sprague-Dawley rats were randomly divided into hypoxia group and normoxia control group.Right ventricular systolic pressure(RVSP)and mean pulmonary artery pressure(m PAP)were monitored by the method of right external jugular vein cannula.Right ventricular hypertrophy index was expressed as the ratio of right ventricular weight to left ventricular weight(left ventricle plus septum weight).Level of calpain-1,calpain-2and calpain-4 m RNA in pulmonary artery trunk were determined by real-time PCR.Expression of calpain-1,calpain-2 and calpain-4 protein was determined by Western Blot.Primary rat pulmonary arterial smooth muscle cells(PASMCs)were divided into 4 groups:normoxia control group,normoxia+MDL28170 group,hypoxia group and hypoxia+MDL28170 group.Cell proliferation was detected by MTS and flow cytometry.Level of Ki-67 and PCNA m RNA were determined by real-time PCR.RESULTS RVSP,m PAP and right ventricular remodeling index were significantly higher in the hypoxia group than those in the normoxia group.In the hypoxia group,pulmonary vascular remodeling occurred,and the expression of calpain-1,calpain-2 and calpain-4 m RNA and protein expression was increased in the pulmonary artery.MDL28170 significantly inhibited hypoxia-induced proliferation of PASMCs accompanied with decreased Ki-67and PCNA m RNA expression.CONCLUSION Calpain mediated vascular remodeling via promoting proliferation of PASMCs in hypoxia induced pulmonary hypertension.
文摘920650 Erythrocyte membrane band 3protein and HCO<sub>3</sub><sup>-</sup>/CL<sup>-</sup> exchange functionin cor pulmonle patients. YANG Xiaojing（杨晓静）, et al. Respir Centre, Xinqiao Hosp,3rd Milit Med Univ, Chongqing, 630037. NatlMed J China 1992; 72（5）277-279. The changes of erythrocyte membrane band
文摘To describe preliminary experience of percutaneous pulmonary valve implantation, in a single pulmonary branch position. Two procedures in 2 patients from a single center are described, where implantation of percutaneous valves within a single pulmonary artery branch was technically successful. The procedural indication was pulmonary valve regurgitation and/or residual stenosis. The 2 patients were symptomatic. An Edwards Sapien? valve(Patient 1), and a Medtronic Melody? valve(Patient 2) were implanted. Both pts were discharged with an excellent valve function. In this report it is underlined that this modality is technically feasible and may be considered an option in patients with congenital heart defect under special circumstances.
文摘Objective To compare the clinical characteristics and survival on Chinese patients with idiopathic pulmonary arterial hypertension(IPAH)and familiar pulmonary arterial hypertension(FPAH)during conventional therapy era and targeted therapy era.Methods IPAH and FPAH patients who were referred between Jan 1999and Oct 2004 in Fuwai Hospital were defined as conventional therapy era group(before 2005 no PAH-specific drug was available in China).All patients in this
文摘Objective To explore the values of pixel indexes (PI) with multiple-slice spiral CT low-dose two-phase scanning for assessing the pulmonary function in chronic obstructive pulmonary disease(COPD) . Methods Thirty-six patients with COPD (COPD group) and 30 healthy people(control group) underwent
文摘Objective To investigate the differences of clinical features,pulmonary function tests,chest imaging and prognosis between patients with idiopathic pulmonary fibrosis(IPF) combined with emphysema and without
文摘Objective To investigate the manifestations,pulmonary function test(PFT)characteristics and imaging features of patients with nonspecific pulmonary function(NSPF).Methods All the data from the same PFT apparatus in Beijing Hospital were collected from January2003 to December 2012.NSPF was defined as
文摘Objective To study the CT features of pulmonary non-tuberculous mycobacteria (NTM) disease in patients with acquired immunodeficiency syndrome (AIDS) and explore the different CT appearances between AIDS-NTM and AIDS-TB. Methods CT findings of pulmonary
文摘Objective To observe the relationship between plasma levels of NT-pro BNP and pulmonary hypertension in patients with left heart failure(LHF).Methods A total of 391 LHF patients were enrolled in our study,according to pulmonary arterial pressure,the patients were divided into 3 groups:Control group,the patients
