1.Xeloda combined with oxaliplatin in the treatment of advanced colorectal cancer
Hang ZHENG ; Jinzhang CHEN ; Rongcheng LUO
Medical Journal of Chinese People's Liberation Army 2001;0(10):-
Objective To evaluate the effect and adverse effect of combination chemotherapy with xeloda and oxaliplatin in advanced colorectal cancer. Methods 25 patients were treated with oral xeloda 1 250mg/m~2, administered twice daily from day 1 to day 14, and oxaliplatin 130mg/m~2/d iv on day 1.The regime was repeated every 21 days for at least 2 consecutive cycles. Result The results of evaluation of effectiveness of the reginme were as follow: 0 CR,12 PR,10 SD and 3 PD. The overall effective rate was 48%(12/25), the effective rate for patients who received the treatment primarily was 100%(3/3), and that of the patients who received the treatment for the secona time was 41%(9/22).Xeloda combined with oxaliplatin was well tolerated. The most common treatment-related adverse events with hand-foot syndrome in 40% (10/25) of patients, skin pigmentation in 68% (17/25), anorexia in 40% (10/25) of patients. Suppression of hematopoiesis, neurotoxicity, nausea and vomiting were mild. Conclusion The combined chemo-therapy with xeloda and oxaliplatin has a high therapeutic response with acceptable toxicity in patients with advanced colorectal cancer, and which was convenient to administer, with definite efficacy, and it could be extensively used, especially in elderly patients and outpatients.
2.Sunitinib malate-induced high expression of NKG2D ligands in nasopharyngeal carcinoma cell ABCG2~(high) CNE2/DDP
Yuxian HUANG ; Kunyuan GUO ; Yang WANG ; Jinzhang CHEN ; Chaoyang SONG
Chinese Journal of Cancer Biotherapy 1996;0(04):-
Objective:To investigate the inducing effects of sunitinib malate on expression of NKG2D ligands in nasopharyngeal carcinoma cell ABCG2high CNE2/DDP.Methods:ABCG2highCNE2/DDP cells and Allo-NK cells were isolated by magnetic activated cell sorting(MACS).Flow cytometry was used to evaluate the purity of isolated cells and the expression of NKG2D-ligands on target cells before and after incubation with sunitinib malate.Then the cytotoxic sensitivity of treated and un-treated ABCG2high CNE2/DDP cells to Allo-NK cells were measured by LDH releasing assay.Results:The positive rate of ABCG2 in ABCG2highCNE2/DDP cells was(91.40?2.32)%.More than 90% of isolated Allo-NK cells were proven to be CD3-CD16+CD56+ cells.The expression of MICA,MICB,ULBP1,ULBP2 and ULBP3 on ABCG2high CNE2/DDP cells incubated with sunitinib malate increased from(2.92?0.33)%,(4.27?0.33)%,(5.80?0.62)%,(11.10?3.15)%,and(7.75?1.14)% to(89.12?4.56)%,(66.10?2.22)%,(67.56?4.19)%,(69.37?8.83)%,and(63.28?3.31)%,respectively.At the E ∶T ratios of 10 ∶1 and 20 ∶1,the cytotoxic sensitivities of ABCG2high CNE2/DDP cells to Allo-NK cells increased from(15.32?13.86)% and(27.26?6.81)% to(41.12?4.12)% and(57.25?2.37)%,respectively,after treatment with sunitinib malate,with significantly difference found in the cytotoxic sensitivities of target cells in each group before and after sunitinib malate treatment(F=15.58,P=0.000).Conclusion:Sunitinib malate can up-regulate expression of NKG2D-ligands(MICA/B,ULBP1-3)in ABCG2high nasopharyngeal carcinoma cells,which results in higher cytotoxic sensitivity to Allo-NK cells.
3.Ultrasound-guided radiofrequency ablation with artificial pleural effusion for cancer of the liver located under the diaphragm
Wangjun LIAO ; Fei CUI ; Aimin LI ; Min SHI ; Jinzhang CHEN
Chinese Journal of Postgraduates of Medicine 2008;31(27):10-12
Objective To observe the safety and efficacy of ultrasound-guided radiofrequency ablation(RFA)with artificial pleural effusion for cancer of the liver located under the diaphragm.Method Fifteen lesions in 11 patients with cancer of the liver located under the diaphragm were treated by RFA with artificial pleural effusion,for which 500-1000 ml normal saline was injected into the pleural cavity.Results Artificial pleural effusion was finished successfully,the whole tumor for all of 15 lesions were visualized by ultrasound and the ideal puncture pathway were easy to find.The artificial pleural effusion was vanished within 1 week after operation.All of the lesions were treated with RFA and complete necrosis was obtained in 13(86.7%)of the 15 lesions by CT or MRI.No severe complication was observed.Conclusion RFA with artificial pleural effusion is a safe and effective treatment option for patients with liver cancer under the diaphragm.
4.Application of the pithy formula and hook memory method in medical English study
Libo LI ; Jianming XIE ; Jinzhang CHEN ; Weiyang ZHENG
Chinese Journal of Medical Education Research 2012;11(5):539-542
Remembering medical English terms is the difficult point in learning medical English.Only through learning the rules and characteristics of medical terms can one remember and get command of thousands of medical terms rapidly and effectively.When studying medical English terms,we explored and summarized a series of pithy formula hook memorial method - a pithy formula linked to the affix and etyma was turned into rhyming verse and formed a memory chain after memorizing by hook memory method many times so as to keep the medical terms firmly in the mind rapidly.
5.Genomic analyses of dengue viruses and origins of dengue strains from China
Yongjun ZHANG ; Chaohui ZHOU ; Meng HUANG ; Jinzhang WANG ; Wei CHEN
Chinese Journal of Zoonoses 2012;(6):515-521
Dengue is the most wide-spread arthropod-borne viral disease of humans in the tropic and sub-tropic regions.In this study,genomic sequences of more than 3 000 dengue viruses available in the GenBank were aligned and analyzed by sero type.According to phylogenetic trees generated by the minimum evolution method of MEGA5.0,dengue viruses were divided into 4-6 genotypes within the four serotypes,respectively.Meanwhile,it was indicated that the distribution of most genotypes was associated with geographic origins of dengue viruses.Probable origins for most of the 39 strains from China with genomic sequences were deduced from relevant ancestral strains in the context of ME trees.These results revealed that the genotype distribution of dengue viruses was geographic origin-specific at genomic level,and that diverse introduction sources were attributed to dengue outbreaks in China.
6.Therapeutic effect of Xingnaojing in treatment of 40 patients with intracerebral haematomas
Liru LI ; Zhiqiang LI ; Jie HUANG ; Jinzhang LI ; Kang CHEN ; Zhiying YING
Chinese Journal of Primary Medicine and Pharmacy 2012;19(5):641-642
Objective To investigate the therapeutic effect of Xingnaojing in treatment of hypertensive cerebral hemorrhage.Methods 90 patients diagnosed as cerebral hemorrhage patient hospitalized were randomly divided into treatment group and control group,treatment group 45 cases,control group 45 cases,including 23 males and 22 females aged 52~75 years(71 ±4).Results Treatment group:After 14 days treatment,neurological deficits had been greatly improved,the total effective was 97.3% ;Control group:Aftenr treatment,the improvement of neurological deficit was worse,the total effective was 77.3%.Hematoma volume in the two groups did not change significantly after one week treatment,but significant changed after two weeks treatment.There was significant difference between the two groups.Conclusion Xingnaojing had significant effect in treatment of hypertensive cerebral hemorrhage.
7.Sequence analysis of clinical Japanese encephalitis viruses isolated from Fujian,2005-2008
Jinzhang WANG ; Lili ZHU ; Xiaoying WANG ; Jianfeng XIE ; Wei CHEN ; Yongjun ZHANG
Chinese Journal of Zoonoses 2010;(2):120-123
Japanese encephalitis virus (JEV) is an important encephalitis virus in Asia, currently both Genotype I (G1) and Genotype III (G3) strains are circulating in China, while JEV isolates from Fujian belonged to G3. In this report, five clinical JEV strains were isolated from specimens of suspected JE patients in Fujian, 2005-2008. Phylogenetic analysis of partial C/PrM and full-length E genes revealed these five strains also belonged to G3. Meanwhile, homogeneity analysis indicated that 2005-2008 isolates were closely related to strains from several years ago, rather than to those strains from 1950s. Minor variations were identified at several amino acid residues of the envelope protein, however, none of these mutations was associated with pathogenicity of JEV. These data contribute to continuous tracking of the geographic evolution of JEV over a long period.
8.Sero-epidemiological investigation of Enterovirus 71 antibodies in Fujian Province,China,2010
Jinzhang WANG ; Wei CHEN ; Yuwei WENG ; Wenxiang HE ; Yongjun ZHANG ; Meng HUANG ; Jianfeng XIE ; Kuicheng ZHENG ; Yansheng YAN
Chinese Journal of Zoonoses 2015;(3):227-231
In order to investigate EV71 antibody levels among general population from Fujian Province after the 2008‐2009 HFMD epidemics ,390 sera‐specimens were collected from 390 participants in 2010 .EV71‐specific antibody was detected by neutralization test ,indicating 186 (47 .69% ) sera of 390 were EV71‐seropositive .Although the difference by gender was not statistically significant on positive rates and antibody titers ,significant differences were observed in positive rates and antibody titers among age groups .The positive rate was increasing with age ,while the 0 age‐group yielded the lowest positive rate of 16 .67% .Subsequently ,significant difference was detected among positive rates and antibody titers between age groups of 0 to 4 years‐old and 5‐years‐old ,with the positive rate of 25 .33% and 61 .67% ,respectively .Therefore ,the EV71 antibody levels among general population from Fujian Province after the 2008‐2009 HFMD epidemics was still in the low level ,especially the age groups of 0 to 4 years‐old .The epidemic of HFMD mainly caused by EV71 will still occur in the future ,and children under 5 years old are major susceptible population ,continuously intensive surveillance ,prevention and control are required .
9.Senquence analysis of envelope gene of local dengue virus in Zhangzhou city, Fujian province, 2019
Liqing GUO ; Meiyan XU ; Qiuxia CHEN ; Binbin YANG ; Jinzhang WANG
Chinese Journal of Experimental and Clinical Virology 2023;37(1):50-54
Objective:To analyze the epidemiological characteristics and track probable imported sources of the local dengue outbreak in Zhangzhou city, Fujian province, 2019.Methods:Serum samples of patients with suspected dengue fever at acute phases were collected for virus detecting and serotyping by real-time fluorescence quantitative RT-PCR. For the positive specimens of local cases, full-length fragments of E gene were amplified by RT-PCR, and were sequenced and analyzed.Result:In 2019, there were 98 local cases of dengue fever in Zhangzhou city, which were concentrated in Zhao’an county, Longhai district and Yunxiao county. In this study, fourteen dengue virus E gene sequences representing different sources in different districts and counties were selected. The amino acid sequence virulence site analysis showed that the local epidemic strains were relatively virulent strains. The gene sequence alignment and phylogenetic analysis showed that all the local strains were classified as DENV-I subgenotype genotype I, divided into a, b and c three different branches. The evolutionary branch a contained all Zhao’an and Longhai sequences and was divided into three sub-branches, the b and c evolutionary branches were both the sequences of Yunxiao. There was a high correlation between the Shenqiao Town in Zhao’an and the Haicheng Town in Longhai. The other areas of the strains were limited to the towns, and the evolutionary branches were close to the other areas in China and countries in Southeast Asia.Conclusions:The indigenous dengue outbreaks in Zhangzhou, 2019 were caused by multiple sources of introduction and originated from other areas in China or from Southeast Asian countries and there was also the possibility of local cross-county transmission.
10.Regulatory effect of molecular targeted drugs on the immune system for liver cancer
Xiao CHENG ; Jinzhang CHEN ; Yabing GUO
Chinese Journal of Hepatology 2021;29(10):1031-1034
Molecular targeted drugs are the first choice for systemic treatment of liver cancer. In the past decade, several anti-liver cancer targeted drugs have been launched. More recently, immunotherapy has become a dazzling nova in the field of systemic treatment of liver cancer. Nivolumab and pembrolizumab have been approved as second-line treatments for patients with advanced hepatocellular carcinoma treated with sorafenib. However, the effect of single-agent treatment is always unsatisfactory in advanced liver cancer. An increasing number of evidences suggests that molecular targeted drugs have important immunomodulatory effects for liver cancer, and several targeted combined immunotherapies have also shown promising clinical effectiveness. This paper reviews the immunomodulatory effects of several molecular targeted drugs in the field of liver cancer.