1.Effect of IL-2 on primary hepatic carcinoma and its potential clinical value
Journal of International Oncology 2015;42(12):939-941
As a T cell subsets growth factor,interleukin-2 (IL-2) can inhibit cancer cell proliferation,reduce tumorigenicity and transitivity,improve local tumor microenvironment,enhance the immunogenicity of hepatocellular carcinoma cells,reduce the load of hepatitis virus and greatly enhance the ability of anti-tumor.On the other hand,it can enhance tumor hypercoagulable state.The effect of IL-2 on primary hepatic carcinoma and its potential clinical value have a bright future.
2.Cultivating High-quality Medical Talents
Feng PAN ; Houjie LIANG ; Xueli PANG ; Zhihua RUAN
Chinese Journal of Medical Education Research 2003;0(04):-
This paper discussed that how to cultivate high-quality medical talents by the use of basic education,medical moral education and psychologic education etc.
3.Effect of CD40 siRNA on inflammatory response of MRL/Lpr mice
Zhihua WANG ; Wei ZHANG ; Yanqing ZHANG ; Chunyan PANG ; Yongfu WANG
Journal of Peking University(Health Sciences) 2016;48(5):771-776
Objective:To observe the effect of CD40 siRNA on expression of IFN-γ,IL-17,IL-4 and anti-dsDNA antibody of systemic lupus erythematosus (SLE)animal model MRL/Lpr mice and to discuss its therapy on MRL/Lpr mice.Methods:In the study,16 female MRL/Lpr mice were randomly divided into control group (n =4),empty vector group (n =4),CD40-siRNA1 group (n =4)and CD40-siR-NA2 group (n =4).The vectors expressing siRNA against CD40 were injected by tail veil into MRL/Lpr mice,while MRL/Lpr mice in control group and empty vector group were injected with the same dose of PBS and pGFP-V-RS vector respectively.The injection was given six times and every one day.The mice were sacrificed 14 d after injection,and the spleen tissue was weighed.The pGFP-V-RS was labeled by green fluorescent protein(GFP)and the tissue sections were observed whether siRNA expressed in the spleen.The expression levels of IFN-γ,IL-17,IL-4 and anti-dsDNA antibody in the sera were detected by ELISA method on the 1st day before the first time and the 2nd,5th,8th,11th,and 14th days after last injection,and the expression levels of CD40 mRNA in spleen tissue of MRL/Lpr mice were detected by RT-PCR and the expression levels of CD40 protein in spleen tissue of MRL/Lpr mice were detected by immunohistochemistry method.Results:The expression vector of CD40-siRNA could express in the spleen of MRL/Lpr.The spleens in CD40-siRNA1 group [(78.85 ±5.61 )mg]and CD40-siRNA2 group [(80.25 ±4.07)mg]were lower than those in control [(141.88 ±7.81)mg]and empty vector group [(153.10 ±7.60)mg].The levels of IL-17,IFN-γand anti-dsDNA antibody were lower and the levels of IL-4 was higher in CD40-siRNA1 group and CD40-siRNA2 group on the 2nd,5th and 8th days after last injection than on the 1st day before the first time (P <0.05).The levels of IFN-γin CD40-siRNA1 group were (118.74 ±10.32)ng/L,(115.24 ±8.26)ng/L and (113.71 ±5.02)ng/L in turn,the levels of IFN-γin CD40-siRNA2 group were (117.83 ±6.83)ng/L,(114.07 ±0.97)ng/L and (112.67 ±9.66)ng/L in turn.The levels of IL-17 in CD40-siRNA1 group were (7.05 ±0.41 ) ng/L,(6.34 ±0.76)ng/L and (5.83 ±0.43)ng/L in turn,the levels of IL-17 in CD40-siRNA2 group were (7.07 ±0.22)ng/L,(6.35 ±0.49)ng/L and (6.12 ±0.80)ng/L in turn.The levels of anti-dsDNA antibody in CD40-siRNA1 group were (7.51 ±0.29 )ng/L,(6.74 ±0.45 )ng/L and (6.32 ±0.39)ng/L in turn,the levels of anti-dsDNA antibody in CD40-siRNA2 group were (8.19 ± 0.38)ng/L,(7.14 ±0.50)ng/L and (6.48 ±0.29)ng/L in turn.The levels of IL-4 in CD40-siRNA1 group were (26.51 ±1.81)ng/L (27.80 ±1.72)ng/L and (28.08 ±2.21)ng/L in turn,the level of IL-4 in CD40-siRNA2 group were (26.28 ±2.03)ng/L,(28.15 ±2.95)ng/L and (28.37 ± 1.71)ng/L in turn.The expression levels of IL-17 and IFN-γantibody increased gradually and the levels of IL-4 decreased gradually in CD40-siRNA1 group and CD40-siRNA2 group on the 11th and 14th days after last injection,then reached to the levels of control group and empty vector group (P >0.05). Though the levels of anti-dsDNA antibody in CD40-siRNA1 group and CD40-siRNA2 group on the 11th day was higher than on the 8th day,there was more significance than those in control group and empty vector group (P <0.05).There was no significance between the 4 groups on the 14th day.The levels of CD40 mRNA and protein were lower in CD40-siRNA1 group and CD40-siRNA2 group than in control group and empty vector group on the 14th day after last injection (P <0.05).Conclusion:CD-40 si-RNA can reduce the concentration of IL-17,IFN-γand of anti-dsDNA antibody in serum,and at the same time,it can elevate the concentration of IL-4 and suppress CD40 mRNA and protein of spleen in MRL/Lpr.Meanwhile after suppressing CD40 mRNA and protein,it can reduce inflammatory response of the mice and the disease activity of MRL/Lpr,suggesting that CD-40 siRNA has therapy effect on SLE.
4.Effect of PCI after thrombolysis and primary PCI on the treatment of acute ST elevation myocardial infarction
Wanwan CHEN ; Zhuhua YAO ; Mei MA ; Lisong CHENG ; Xin ZHOU ; Jianping DU ; Zhihua PANG
Tianjin Medical Journal 2015;(12):1428-1432
Objective To investigate the differences in clinical efficacy and safety between thrombolysis followed PCI (percutaneous coronary intervention) and primary PCI in patients with acute STEMI (ST elevation myocardial infarction). Methods A total of 215 STEMI patients who visit our clinic within 12 h since onset of their symptoms from May 2013 to January 2015 were enrolled. All eligible patients were divided into Early PCI group(n=68) and pPCI group (n=147) based on whether or not they received injection of recombinant human prourokinase thrombolytic therapy before their visit. Immediate TIMI (Thrombolysis In Myocardial Infarction) flow grade of infarct-related artery (IRA) before and after PCI treatment, post?operative CTFC (Corrected TIMI Frame Count) and TMPG (TIMI myocardial perfusion grade) were compared between these two groups. The incidence of bleeding during hospital stay , left ventricular function at 6 month after intervention and major adverse cardiac events (MACE) were all observed. Rusults There is no obvious difference between the baseline of two groups. Before PCI, the proportion of TIMI grade 2-3 was higher in Early PCI group (77.9%vs 20.4%,P<0.05)than that in pPCI group;but there was no significant difference in the proportion of TIMI grade 2-3 between these two groups after PCI (P>0.05). CTFC and peak value of serum CK-MB were lower [(27.7 ± 5.0) vs (32.6 ± 7.1), P<0.05;(225.8 ± 108.3) U/L vs (283.4 ± 110.6) U/L, P<0.05] and rate of TMPG 3 is higher (82.4%vs 68.7%, P<0.05)in Early PCI group than those in pPCI group. No significant difference was found in the incidence of bleeding and MACE during hospital stay and Left ventric?ular function at 6 months after operation between these two groups. By contrast, LVEFs were higher while LVEDds (LVED diameter) were lower after 3 and 6 months of the intervention compared to those before intervention in both groups (P <0.05). Conclusion It is a safe and effective reperfusion strategy for STEMI patients to receive rhPro-UK thrombolytic thera?py followed early PCI as an alternative way to those who failed to receive pPCI on time. It didn′t increase the occurrence of bleeding complications and MACE, and at the same time it presented the same benefit in improving recent cardiac function as pPCI did.
5.A study of prospective memory in the inpatients with abstinent male alcohol dependence
Qing WU ; Keyong WANG ; Zhihua ZHANG ; Liangjun PANG ; Yongmei WANG ; Bao HUANG ; Wangfa LIU
Chinese Journal of Behavioral Medicine and Brain Science 2013;(2):134-136
Objective To investigate thc cvent-based prospective memory (EBPM)and time-based prospective memory(TBPM)in the inpatients with abstinent alcohol dependence and the relationships between prospective memory and symptoms.Methods 32 male patients with alcohol dependence and 30 normal controls matched by age,education,HAMD and HAMA were assessed with a neuropsychological battery of tests including EBPM and TBPM tasks.Results A statistically significant in EBPM was observed between patients with alcohol dependence and normal controls (3.91 ± 0.69 vs.4.47 ± 0.63,t =-3.348,P < 0.0 1) and the same result in TBPM (3.28 ±0.77 vs.4.20 ±0.66,t=-5.032,P<0.01).The positively correlation was showed between the duration of abstinence and EBPM (r =0.444,P < 0.05),as well as TBPM (r =O.423,P < 0.05) in the patients.Conclusion The results suggest abstinent alcohol dependence patients impairs both EBPM and TBPM.PM shows correlated with duration of abstinence moderately in the patients.
6.Explore on treatment of eye disease by the Pang’s radix stellariae
Zhihua SHEN ; Jiansheng GAO ; Bin ZHANG ; Wei KANG ; Lixia ZHANG ; Minglian ZHANG ; Chaoshan PANG
International Journal of Traditional Chinese Medicine 2014;(6):484-486
Pang Zanxiang was a famous ophthalmologist of Chinese medicine. Based on his family experience and combined with his clinical practice, he has written the book Clinical practice of ophthalmology in traditional Chinese medicine. In the book, the theory of stagnation of Qi and blood leading to disease was put forward, and radix stellariae was used most frequently in treating eye disease. From literature interview, we found that pang’s experience of radix stellariae in treating eye disease was its function of replenishing vital essence to improve eyesight.
7.IDI2-AS1 influences the development of acute myocardial infarction by regulating NR4A2 through microRNA-33b-5p
Shuxing WU ; Zhihua PANG ; Ru WANG ; Jian CUI ; Wenting LI ; Xiaoyu YANG ; Zhuhua YAO
Chinese Critical Care Medicine 2024;36(9):972-979
Objective:To explore the effect and correlation of long non-coding RNA (lncRNA) IDI2-AS1/microRNA-33b-5p (miR-33b-5p)/nuclear receptor-associated protein NR4A2 competitive endogenous RNA (ceRNA) regulatory network on acute myocardial infarction (AMI), and to verify whether IDI2-AS1 regulates NR4A2 through miR-33b-5p to affect the occurrence and development of myocardial infarction.Methods:The miRNA and mRNA expression chips related to myocardial infarction were obtained from gene expression omnibus (GEO), and the differential expression was analyzed. The upstream regulatory mechanism of NR4A2 was predicted using TargetScan database. Thirty-two male C57/BL6 mice were divided into Sham group, AMI model group, miR-33b-5p mimic group [miR-33b-5p mimic lentivirus (5×10 7 TU) was injected locally into the heart tissue during ligation] and miR-33b-5p inhibitor group [miR-33b-5p inhibitor lentivirus (5×10 7 TU) was injected locally into the heart tissue during ligation] according to random number table method, with 8 mice per group. Left ventricular end-diastolic diameter (LVEDD) and left ventricular end-systolic diameter (LVESD) were asseessed by echocardiography, left ventricular fractional shortening (LVFS) and left ventricular ejection fraction (LVEF) were calculated. After the last weighing, the anesthetized mice were sacrificed and the heart tissues were taken. Masson staining of the heart tissues was observed under light microscope, myocardial collagen volume fraction (CVF) and infarct size were calculated. Cardiomyocytes of SPF grade SD rats were collected. They were divided into normal control group (control group), ischemia-hypoxia model group, miR-33b-5p mimic transfection group (miR-33b-5p mimic transfection group before ischemia and hypoxia treatment) and miR-33b-5p inhibitor transfection group (miR-33b-5p inhibitor transfection group before ischemia and hypoxia treatment). The activity of caspase-3/7 in cardiomyocytes was measured. The levels of interleukins (IL-1β, IL-6) and tumor necrosis factor-α (TNF-α) were detected by enzyme-linked immunosorbent assay (ELISA). The levels of malondialdehyde (MDA), superoxide dismutase (SOD), creatine kinase (CK), MB isoenzyme of creatine kinase (CK-MB) and lactate dehydrogenase (LDH) were detected by colorimetry. Real-time quantitative polymerase chain reaction (RT-qPCR) was used to detect the expression of apoptosis-related proteins Bax and Bcl-2, cytochrome C (Cyt C) and IDI2-AS1/miR-33b-5p/NR4A2 regulatory axis genes. Results:The myocardial infarction microarray analysis showed that NR4A2 expression was significantly up-regulated in myocardial infarction, with predicted upstream regulatory mechanisms indicating its possible influence through the IDI2-AS1/miR-33b-5p/NR4A2 regulatory axis. Echocardiographic detection showed that compared with AMI model group and miR-33b-5p inhibitor group, LVEF and LVFS in the heart tissue of mice in miR-33b-5p mimic group were significantly increased, while the levels of LVEDD, LVESD, CK, CK-MB and LDH were significantly decreased, with statistical significance. Light microscope showed myocardial fibrosis and myocardial infarction in AMI model group and miR-33b-5p inhibitor group. In the miR-33b-5p mimic group, the degree of myocardial fibrosis was decreased and the myocardial infarction size was significantly reduced. Compared with AMI model group and miR-33b-5p inhibitor group, the levels of MDA, IL-1β, IL-6, TNF-α and the expressions of Bax and Cyt C in the heart tissue of mice in miR-33b-5p mimic group were significantly decreased, while the levels of SOD and Bcl-2 expression were significantly increased, and the differences were statistically significant. The expressions of IDI2-AS1 and NR4A2 in the heart tissue of mice in miR-33b-5p mimic group were significantly lower than those in AMI model group and miR-33b-5p inhibitor group [IDI2-AS1 (2 -ΔΔCt): 1.96±0.08 vs. 2.73±0.08, 3.10±0.05, NR4A2 (2 -ΔΔCt): 2.36±0.07 vs. 3.16±0.08, 3.80±0.08, all P < 0.01]. The expression of miR-33b-5p was significantly higher than that of AMI model group and miR-33b-5p inhibitor group (2 -ΔΔCt: 0.88±0.07 vs. 0.57±0.07, 0.23±0.01, both P < 0.01). The cell experiment results showed that the caspase-3/7 activity of rat neonatal cardiomyocytes in the miR-33b-5p mimic transfection group was significantly lower than that in the ischemia-hypoxia model group and the miR-33b-5p inhibitor transfection group, suggesting that miR-33b-5p can significantly reduce the apoptosis level of the ischemia-hypoxia model. The levels of peroxidation and inflammation indexes, important genes of apoptosis pathway and the expression of IDI2-AS1/miR-33b-5p/NR4A2 regulatory axis of rat neonatal cardiomyocytes in all groups were consistent with the above. Conclusion:IDI2-AS1 can regulate NR4A2 through miR-33b-5p, thus affecting the occurrence and development of AMI.
8.Short-term and long-term prognosis analysis of anatomical liver resection for the treatment of perihilar cholangiocarcinoma
Xianghao YE ; Zhipeng LIU ; Haisu DAI ; Yi GONG ; Hao LI ; Zhihua LONG ; Wei WANG ; Yuhan XIA ; Shujie PANG ; Longfei CHEN ; Xingchao LIU ; Haining FAN ; Jie BAI ; Yan JIANG ; Zhiyu CHEN
Tumor 2023;43(6):506-515
Objective:To explore the short-term and long-term prognostic outcomes of anatomical liver resection(AR)for patients with perihilar cholangio-carcinoma. Methods:This is a retrospective study.All data were obtained from 4 centers,including The First Affiliated Hospital of Army Medical University,Eastern Hepatobiliary Hospital of Naval Medical University,Sichuan Provincial People's Hospital and Affiliated Hospital of Qinghai University,of a multi-center database.A total of 305 consecutive perihilar cholangiocarcinoma patients receiving radical resection between January 2013 and June 2021 were included in this study.According to the method of liver resection,all patients were divided into the AR group(n=205)and the non-anatomical liver resection(NAR)group(n=100).The baseline characteristics,short-term prognosis and long-term prognosis of the 2 groups were compared. Results:The perioperative transfusion rate and the 30-day complication rate were significantly lower in the AR group than those in the NAR group(P<0.05).There was no statistically significant difference in the survival rates between the AR and the NAR groups(P>0.05). Conclusion:The 2 hepatic resection modalities had no obvious effect on the long-term prognosis of perihilar cholangiocarcinoma patients after radical resection,but choosing AR tends to achieve a better short-term prognosis and is worth promoting in clinical practice.