1.Studies on protective effect of SINI TANG~* comprising active components combined at different dosage on myocardial ischemia reperfusion injury in mice
Huilan SUN ; Weikang WU ;
Chinese Traditional and Herbal Drugs 1994;0(04):-
C. Conclusion The optimal SINI TANG composition comprises three active components combined at clinical maximal dosage showed the best therapeutic efficacy, of which A is a key factor and B, C are necessary factors for the composition in SINI TANG.
2.Apoptosis and expression of its regulating gene in gastric carcinoma and its precancerous lesions
Shu SUN ; Baiyan SUN ; Huilan ZHI ; Xiangfan XU ; Dongzh SUN
Chinese Journal of Pathophysiology 1986;0(04):-
AIM: To study apoptosis and the involved genes in malignant transformation of gastric carcinoma. METHODS: Apoptotic cell and apoptotic regulating gene p53,bcl-2,c-myc were detected in 46 cases with gastric carcinomas, 20 cases with precancerous lesions and 24 cases with normal mucosa in situ using TdT-mediated dUTP-biotin nick end labeling (TUNEL) technique and immunohistochemical stain. RESULTS: Apoptotic index in precancerous lesion(intestinal metaplasia and dysplasia) and gastric carcinoma were significantly higher than that in normal mucosa( P
3.Ceramide mechanism of anti-myocardial ischemia/reperfusion injury of effective position in Sini Decoction
Huilan SUN ; Weikang WU ; Hanchuan LUO ; Tianwen LIANG
Chinese Traditional Patent Medicine 1992;0(12):-
AIM: To study the effects of Sini Decoction's effective component(SNDE) on myocardial apoptosis and ceramide content during myocardial ischemla/reperfusion. METHODS: The mice of Kunming species were randomly divided into 3 groups: control,myocardial ischemia/reperfusion and SNDE.After inducing myocardial ischemia/reperfusion injury of mice in vivo with pituitrin(Pit),myocardial SOD activity and MDA content were measured.DNA agarose gel electrophoresis and fluorescent stain of DAPI were done to check up apoptosis.The content of myocardial ceramide(?g/kg) was measured through HPTLC and scan of thin plate. RESULTS: The myocardium of model group has the phenomenon of DNA ladder.The apoptosis index and the ceramide content in model group were higher than those of control group(P
4.Anti-myocardial ischemia-reperfusion injury of Sini Decoction's active fraction
Huilan SUN ; Weikang WU ; Hanchuan LUO ; Tianwen LIANG
Chinese Traditional and Herbal Drugs 1994;0(01):-
Objective To study the anti-myocardial ischemia-reperfusion injury effect of Sini Decoction's active fraction(SNDAF).Methods Experimental animals were randomly individed into normal,model,Sini Decoction(SND),and SNDAF groups.Rat hearts were perfused by the Langendorff method.The model of myocardial ischemia-reperfusion injury was reproduced by adjusting the flow of perfused liquid.The perfused liquid of normal and model groups was KH buffer saturated by oxygen.The perfused liquid with SND or SNDAF was mixed with KH buffer.The coronary flow and contract power of myocardium at 0 min of ischemia and 1,5,10,20,30,40,and 50 min of reperfusion were tested,respectively.The incidence of reperfusion arrhythmias(IRA) in the first 1 minute of reperfusion was calculated.Mice were given drugs by ig for 3 d and then myocardial ischemia-reperfusion models were established by ip pituitrin(20 U/kg).ECG of mice was recorded at 0—80 min after ip administration. SOD activity,and the contents of MDA and LA in myocardium of mice were measured.Results Both SND and SNDAF could reinforce myocardial contract and reduce the IRA in the first minute of reperfusion.SND had better effect on IRA than that of SNDAF.SNDAF had better effect on myocardial contract than that of SND.SND and SNDAF could significantly drop ECG J point raise induced by ischemia,and increase SOD activity,and decrease contents of MDA and LA significantly in ischemia myocardium.There were no significant difference between SND and SNDAF.Conclusion SNDAF could improve oxidative injury and suppress(ischemia) of myocardium,reinforce myocardial contract,and reduce the incidence of arrhythmias during(myocardia) ischemia-reperfusion.
5.Changes of ceramide and apoptosis during myocardial ischemia/reperfusion
Huilan SUN ; Weikang WU ; Hanchuan LUO ; Tianwen LIANG
Chinese Journal of Pathophysiology 2000;0(11):-
AIM: To study the change of myocardial ceramide during myocardial ischemia/reperfusion and the relationship between ceramide and apoptosis and oxidative stress. METHODS: After inducing myocardial ischemia/reperfusion (I/R) injury in mice with pituitrin (Pit), myocardial SOD activity and MDA content were measured. DNA agarose gel electrophoresis and fluorescent staining of DAPI were done to check up apoptosis. The content of myocardial ceramide (?g/kg) was measured through HPTLC and scan of thin plate. RESULTS: The myocardium of I/R model group had the phenomenon of DNA ladder. Apoptosis index and ceramide content in I/R model group were higher than those in normal control group (P
6.Hyperhomocysteinemia induces endothelial dysfunction and aggravates microcirculation dysfunction and microthrombosis
Juan SUN ; Hongmei TAN ; Chao CHENG ; Weikang WU ; Yiling WU ; Huilan SUN ; Yulian HAN ; Junlin CHEN
Chinese Journal of Pathophysiology 2000;0(12):-
AIM:To establish a microthrombus model by carrageenan (Ca)/ lipopolysaccharides (LPS) intraperitoneal injection in rats with hyperhomocysteinemia (HHcy) and endothelial dysfunction induced by L-methionine intake. METHODS: ① Male Sprague Dawley rats were randomly divided into 2 groups: control and endothelial dysfunction (HHcy) groups. L-methionine was administered by gavage in HHcy group for total 4 weeks. Purified water was administered by gavage in control rats. Plasma Hcy, NO and vWF were examined and the thoracic aorta were excised after 4 weeks of L-methionine treatment to evaluate endothelial function. ② Male Sprague Dawley rats were randomly divided into 3 groups to establish a microthrombus formation model with Ca/ LPS: control, microthrombus formation (Ca/LPS) and endothelial dysfunction plus mitoarothrombus formation (HHcy+Ca/LPS) groups. Control rats were injected with normal saline (NS). Ca/LPS rats were intraperitoneally injected with carrageenan (Ca) and followed by lipopolysaccharides (LPS) 16 h later. HHcy+Ca/LPS rats were intragastric gavaged by L-methionine for total 4 weeks, and then were injected with Ca/LPS in the same way as Ca/LPS group. Cruor parameters and platelet count were detected at 20 h after LPS or NS injection and the mesentery microcirculation was monitored. Plasma NO and vWF were also detected at 24 h after LPS or NS injection. RESULTS: ① Plasma Hcy concentrations and vWF level were significantly increased in HHcy group, while plasma NO content was significantly decreased compared with that in control group. Endothelial dependent relaxation (EDR) of aortic rings was significantly decreased in HHcy group, suggesting endothelial damage/dysfunction was induced by HHcy. ② Mesentery capillary was obviously blocked by microthrombus in Ca/LPS rats and was blocked more seriously in HHcy+Ca/LPS rats. Cruor parameter results suggested that Ca/LPS rats were in hypercoagulable phase and HHcy+Ca/LPS rats were in hypocoagulable phase at 20 h after LPS injection. Platelet count and plasma NO content in HHcy+Ca/LPS group were significantly decreased, while plasma vWF level was significantly increased compared with Ca/LPS group. CONCLUSION: L-methionine intake induces severe HHcy and causes endothelial dysfunction in rats. Microcirculation dysfunction and microthrombosis can be caused by Ca/LPS intraperitoneal injection and may be aggravated by endothelial dysfunction.
7.Clinical study on posaconazole for the prophylaxis or salvage treatment of invasive fungal disease in patients with hematological diseases
Changcheng ZHENG ; Xiaoyu ZHU ; Baolin TANG ; Lei ZHANG ; Huilan LIU ; Zimin SUN
Journal of Leukemia & Lymphoma 2015;24(12):732-735
Objective To investigate the efficacy and safety of posaconazole in the prophylaxis or salvage treatment of invasive fungal disease (IFD) in patients with hematological diseases.Methods 25 patients with hematological diseases receiving posaconazole treatment from Feb 2014 to Feb 2015 were analyzed retrospectively.The patients' average age was 32.6 years old (16-64 years old).18 patients received posaconazole for IFD prophylaxis, and 7 patients for IFD salvage treatment.Results 18 patients receiving posaconazole for IFD prophylaxis had no clinical manifestation of IFD (that is no case of breakthrough fungal infection) during treatment or in the 12 weeks after treatment, and the average prophylaxis period was 21 d (14-35 d).Among 7 patients receiving posaconazole for IFD salvage treatment, 6 patients were effective, including 4 cases cured and 2 cases effective.There were no obviously side effects of posaconazole in these patients.Conclusion Posaconazole has good clinical response for IFD in the hematologic diseases patients whether in prophylaxis or in salvage treatment.
8.Clinical study on modified GMALL protocol for adult acute lymphoblastic leukemia
Yongsheng HAN ; Zimin SUN ; Weibo ZHU ; Xiaoyan CAI ; Jingsheng WU ; Xin LIU ; Huilan LIU ; Huizhi YANG
Journal of Leukemia & Lymphoma 2011;20(3):168-171
Objective To analyze the treatment efficacy and safety of a modified GMALL protocol for adult acute lymphoblastic leukemia (ALL). Methods Data of 37 patients with newly diagnosed adult ALL treated with a modified GMALL protocol from January 2005 to December 2009 were retrospectively analyzed,and compared with that of 44 patients treated with an in-house conventional protocol at the same period.Results The complete remission (CR) rate was 89.2 %(33/37) treated with modified GMALL protocol. The cumulative overall survival (OS) rates at 1 year, 2 years, 3 years and 4 years were 77.5 %, 48.0 %, 40.0 %and 40.0 %, respectively. The main adverse events were grade 3 or grade 4 hematological toxicities and infections which were easily managed, and the treatment-related mortality rate was low. The OS of modified GMALL protocol was superior to that of the conventional protocol. Conclusion The modified GMALL protocol has a satisfying effect and the adverse events can be tolerated for adult ALL, so its clinical application can be encouraged.
9.Unrelated umbilical cord blood transplantation in the treatment of aggressive-phase chronic myeloid leukemia
Lingli ZHANG ; Huilan LIU ; Liangquan GENG ; Xingbing WANG ; Kaiyang DING ; Baolin TANG ; Juan TONG ; Zimin SUN
Journal of Leukemia & Lymphoma 2012;21(6):349-352
[Objective] To retrospectively analyze the outcome of unrelated umbilical cord blood transplantation in the treatment of aggressive-phase chronic myeloid leukemia.[Methods] Fourteen consecutive patients with aggressive-phase chronic myeloid leukemia were treated with unrelated umbilical cord blood transplantation,thirteen patients were treated with myeloablative unrelated CBT and one patients were treated with nonmyeloablative unrelated CBT.All patients received standard cyclosporine A (CsA) and mycophenolate mofetil(MMF) as a graft-versus-host disease (GVHD) prophylaxis.[Results] 14 patients were all successfully engrafted.The median times for their neutrophil returning to ≥0.5×109/L and for platelet returning to ≥20×109/L were 22.8 days and 37.8 days,respectively.Acute GVHD occurred in 10 of 13 evaluable patients.The grading of acute GVHD was gradeⅡ-Ⅳin 6 patients(46.2 %).Chronic GVHD occurred in 7 of 11 evaluable patients(63.6%).Relapse occurred in 2 of 15 patients,lextramedullary relapse was included.9 of 14 patients were alive and event-free after CBT.The probability of OS rate at 5 years was 64.3 %,the probability of DFS rate at 5 years was 5,7.1%.[Conclusion]Unrelated umbilical cord blood transplantation is effective in the treatment of aggressive-phase chronic myeloid leukemia.
10.Analysis of p16 gene deletion and mutation in gastric carcinoma
Guohai ZHAO ; Tiechen LI ; Lianghui SHI ; Yabin XIA ; Huilan SUN ; Dunf PENG
Chinese Journal of Pathophysiology 1989;0(05):-
AIM: To investigate p16 gene alterations in gastric carcinoma. METHODS: 36 fresh tumor specimens taken from gastric cancer patients were analyzed for p16 gene deletion and mutation by polymerase chain reaction (PCR) and DNA sequencing. RESULTS: Homozygous deletion of exon 1 and exon 3 was observed in 2 cases and 3 cases of diffuse carcinoma, respectively. The frequency of homozygous deletion was 13.89%. No p16 gene point mutation was detected. CONCLUSION: The deletion of p16 genes may be related to gastric carcinogenesis.