1.The express of Caveolin-1 and cyclin D1 and their implications in gastric cancer
Qingbin LIU ; Jiangmei HUANG ; Yanxin CHEN
Chinese Journal of Primary Medicine and Pharmacy 2012;19(14):2083-2085
Objective To investigate the expressions of Caveolin-1 and cyclin D1 and their significance in gastric cancer,and offer effective experiment evidence for the decision of gastric cancer prognosis and multitude pathway therapy.Methods The protein expression of Caveolin-1 and cyclin D1 were detected by immunohistochemistry in 120 cases of gastric cancer and 30 cases of normal gastric tissue.The correlations were analyzed between Caveolin1 and cyclin D1 expression and the clinicopathologic features of gastric cancer.Results The decreased expression of Caveolin-1 in gastric cancer may be negative correlated with tumorous differentiation degree,infiltration depth,lymphoid node metastasis and TNM stage;the increased expression of cyclin D1 in gastric cancer was positively correlated with tumorous differentiation degree,lymphoid node metastasis and TNM stage(r =- 0.297,P =0.001).Conclusion The expressions of Caveolin-1 and cyclin D1 were negatively correlated,and their negative synergy may be closely related to the occurrence,development and evolution of gastric cancer.Caveolin-1 and cyclin D1 were novel prognostic mark ers of gastric cancer,and may play an important role in the treatment of gastric cancer.
2.Predictive value of P-selectin and D-dimer in early diagnosis of portal vein thrombosis
Li WANG ; Guijie LIU ; Yanxin CHEN ; Huaiping DONG
Chinese Journal of Current Advances in General Surgery 2009;0(11):-
Objective:To investigate the predictive value of P-selectin and D-dimer in the early diagnosis of portal vein thrombosis(PVT) in patients submitted to portal hypertension operation. Method:Eighty-two patients were assigned into two groups(PVT group and non-PVT group)after the operative treatment of portal hypertension.The levels of P-selectin and D-dimer were detected dynamically in the patients of two groups.Results:The preoperative levels of P-selectin and D-dimer in the PVT group were higher than those in the non-PVT group respectively(P
3.Analysis of auxiliary effect of oxalic acid Ai Sciplan auxiliary effect assisted with psychological intervention on coronary heart disease complicated with depression
Yanxin LI ; Xianpei WANG ; Wen LI ; Hong CAO ; Luyu CHEN
Tianjin Medical Journal 2015;(6):669-673
Objective To investigate the curative effects of oxalic acid Ai Sciplan in assisting psychological therapy for coronary heart disease accompanied with depression. Methods A total of 136 patients of coronary heart disease with de?pression were randomly divided into control group and treatment group. The routine drug treatment was given to control group. Treatment group was given oxalic acid Ai Sciplan which is assisted by the psychological therapy based on the routine drug treatment schedule for six months. HAMD score before treatment, one-week, one-month, 3-month and 6-month after treatment were compared between two groups. Homocysteine (Hcy) and high sensitive C reactive protein (hs-CRP) levels were detected by circulating enzymatic method before treatment and 6-month after treatment. The WHO quality of life scale (WHOQOL-BREF) was used to assess the quality of life in two groups of patients. The improvements of angina and depressive symptoms were evaluated after 6-month treatment. The cardiovascular events were followed up in two groups. Re?sults HAMD scores significantly decreased after treatment in both groups (P < 0.05). HAMD scores at all different time points were significantly lower after treatment than those before treatment in treatment group. In control group, HAMD scores at different time points were also significantly lower after treatment than those before treatment, except time point of one week after treatment. The levels of Hcy and hs-CRP were decreased after treatment in two groups, and the levels were lower in treatment group than those of control group. Values of WHOQOL-BREF score, mental status, social relations and the sur?rounding environment scores were higher after treatment in both groups. Also they are higher in treatment group than that of control group. The angina and depressive symptoms were improved in treatment group. The incidences of angina, myocardial infarction, arrhythmia, heart failure, sudden cardiac death and other cardiovascular events were significantly lower in treat?ment group than those of control group (χ2=9.396, P<0.05). Conclusion Escitalopram oxalate combined with psychological therapy shows a significant beneficial effect and a better prognosis in the treatment of coronary heart disease and depression.
4.Appropriate dose of dexmedetomidine for epidural analgesia
Hong LI ; Yanxin CHENG ; Yongxue CHEN ; Guanjie XU ; Senming ZHAO
Chinese Journal of Anesthesiology 2012;32(3):327-329
Objective To compare the effects of different doses of dexmedetomidine on the median effective concentration (EC50) of ropivacaine for epidural block and investigate the appropriate dose.Methods One hundred and twenty ASA Ⅰ patients of both sexes,aged 20-55 yr,weighing 50-75 kg,scheduled for knee arthroscopic operation,were randomly divided into 4 groups (n =30 each):no dexmedetomidine group (group D0),0.25 μg/kg dexmedetomidine group (group D0.25),0.50μg/kg dexmedetomidine group (group D0.50),and 1.00μg/kg dexmedetomidine group (group D1.00).In group D0,ropivacaine 20 ml was injected into epidural space.The ropivacaine-dexmedetomidine mixtures containing 0.25,0.50 and 1.00 μg/kg dexmedetomidine were injected into epidural space in groups D0.25,D1.00 and D0.50 respectively.The volume of mixtures was 20 nl in groups D0.25,D1.00 and D0.50.The initial concentration of ropivacaine was set at 0.40 %,0.40 %,0.28 % and 0.20 % in groups D0,D0.25,D0.50 and D1.00 respectively and then the EC50 was determined by up-and-down technique.The concentration of ropivacaine was increased/decreased by 0.02% in the next patient.The analgesic effect was assessed using VAS score.VAS score =0 was considered as effective analgesia.The EC50 and 95% confidence interval (CI) of ropivacaine were calculated using probit method.Adverse effects were recorded.Results The EC50 and 95 % CI of ropivacaine was 0.38% (0.35-0.41)%,0.34% (0.31-0.36)%,0.22% (0.20-0.24)% and 0.14% (0.12-0.15) % in groups D0,D0.25,D0.50 and D1.00 respectively.The EC50 of ropivacaine was decreased gradually in groups D0,D0.25,D0.50 and D1.00 ( P < 0.05).Compared with group D0,the incidonce of hypotension and bradycardia was significantly increased in group D1.00 ( P < 0.05),while no significant change was found in the incidence of adverse effects in groups D0.25 and D0.50 (P > 0.05).Conclusion The appropriate dose of dexmedetomidine for epidural analgesia is 0.50 μg/kg.
5.Adiponectin exerts antiproliferative effect on high glucose-induced BeWo cell proliferation in vitro
Haitian CHEN ; Dongyu WANG ; Huizhen GENG ; Hanqing CHEN ; Yanxin WU ; Songqing DENG ; Zilian WANG
Chinese Journal of Obstetrics and Gynecology 2016;51(3):204-208
Objective To determine the effects of adiponectin on high glucose induced BeWo cell proliferation in vitro. Methods BeWo cells were seeded in 96-well plates at the appropriate density. After treatments with high glucose (25 mmol/L), western blot analysis of cyclin D1 and a colorimetric assay (cell counting kit-8, CCK-8) were used to analyse BeWo cells′proliferation, and western blot was used to detect the expression of adiponectin. Moreover, we added adiponectin (20μg/ml) in the culture medium and three methods were utilized for cell proliferation analysis: CCK-8, cell cycle analysis (by flow cytometry) and proliferating cell nuclear antigen (PCNA) immunocytochemical staining. Results Compared to BeWo cells cultured by normal glucose and high mannitol, the proliferation of BeWo cells treated by high glucose increased (P<0.05). Compared with BeWo cells cultured by high mannitol, the expression of adiponectin in BeWo cells treated by high glucose decreased. After added adiponectin in the culture medium, the proliferation of BeWo cells treated by adiponectin+high glucose decreased than that of cells treated by high glucose (0.770±0.050 versus 0.990±0.070, P<0.05);the proportion of G2+S phases of BeWo cells treated by adiponectin+high glucose decreased than that of cells treated by high glucose [(40.7±2.1)%versus (44.9± 3.9)%, P<0.05];the rate of PCNA positive cell in BeWo cells treated by adiponectin+high glucose decreased than that of cells treated by high glucose [(28 ± 5)% versus (44 ± 5)%, P<0.05]. Conclusion Adiponectin could inhibit proliferation of high glucose induced BeWo cells in vitro.
6.An analysis of interfractional and intrafractional prostate motion in hypofractionated precise radiotherapy for prostate cancer
Yueping LIU ; Jing XU ; Liansheng ZHANG ; Hao FANG ; Yanxin ZHANG ; Bing CHEN ; Jianrong DAI ; Yexiong LI
Chinese Journal of Radiation Oncology 2016;25(11):1199-1203
Objective To investigate the interfractional and intrafractional prostate motion during hypofractionated precise radiotherapy for prostate cancer. Methods From 2013 to 2016, twenty?eight patients who received 5 Gy radiotherapy in 9 fractions for prostate cancer were enrolled as subjects. Every patient had three gold fiducials implanted into the prostate by transrectal ultrasound guidance two weeks before computed tomography ( CT) simulation. All patients underwent CT scans in the supine position with full bladders and rectal balloons filled with 60 ml air. The Pinnacle planning system was used to design the treatment plans. Twenty?three patients were treated with a Synergy accelerator. Those patients underwent cone?beam CT ( CBCT) scans prior to treatment. The set?up error was recorded by bone alignment between CBCT images and planning CT images. The prostate displacement was then recorded by gold fiducial alignment. The interfraction prostate displacement was defined by the difference between the above two parameters. The other 5 patients were treated with a Novalis accelerator. Based on gold fiducial alignment,the real?time tracking of gold fiducials was carried out by the ExacTrac system to evaluate the intrafractional prostate displacement. Results A total of 207 measurements of interfractional prostate displacement were made in the 23 patients before treatment. The mean interfractional prostate displacements in the left?right (LR),superior?inferior (SI),and anterior?posterior (AP) directions were (0.05±0?10),(0.20±0?22),and (0.19±0?18) cm,respectively. The displacements larger than 0?3 cm in the above three directions were observed in 1,52,and 49 measurements,respectively,while the displacements larger than 0?5 cm in the three directions were observed in 1,29,and 16 measurements,respectively. A total of 225 measurements of gold fiducial displacement were made in the 5 patients during treatment. The mean intrafractional prostate displacements in LR,SI,and AP directions were (0.61±0?50),(0.68±0?69),and (0.70±0?67) mm, respectively. The displacements larger than 3 mm in the three directions were observed in 0, 1, and 1 measurement, respectively. Conclusions In hypofractionated precise radiotherapy for prostate cancer, the interfractional prostate displacement is significantly larger than the intrafractional prostate displacement. The interfractional prostate displacement must be corrected before radiotherapy. In order to avoid off?target irradiation due to postural changes in patients,the tracking of the intrafractional prostate displacement is still necessary although the displacement is relatively small. The rectal balloon can help immobilize the prostate.
7.Application of New Field Operation Instrument Set in Rescuing the Wounded on the Sea
Jihui LI ; Hong TANG ; Yanxin JU ; Hailian CHEN ; Hui ZHOU ; Xiying REN
Chinese Medical Equipment Journal 2003;0(11):-
This paper aims to discuss the use and management of operation instrument in treatment of the wounded on the sea by using the new type of field operation instrument set so as to improve the rescue ability on the sea. The operation set has a new structure and is designed reasonably. It is easy to be washed and disinfected. It can be packed sterilizedly for a long time and deployed rapidly. All of the operation instrument is fixed in the box to prevent it from falling when it is used on the sea and it is convenient to count and arrange. The new type of field operation instrument set is fit for rescuing the wounded on the sea. It is convenient to be used, sterilized, stored and carried.
8.Analysis of the relationship between interleukin SNPs and breast cancer susceptibility
Jing DONG ; Ping CHEN ; Dan LIU ; Yanxin LV ; Qingbu MEI ; Minglong ZHANG ; Lihong ZHENG
Chongqing Medicine 2015;(29):4086-4088,4091
Objective To investigate the relationship between IL‐10 SNPs and breast cancer susceptibility .Methods Collect‐ed 156 blood samples of breast cancer patients as case group and 156 blood samples of health as control .Genotype SNPs of IL‐10‐592 ,‐1082 were analyzed by genomic DNA extraction ,PCR amplification and TOF mass spectrometry .The data was used by statis‐tical analysis .Results IL‐10‐592 C/C ,C/A and A/A site the genotype frequencies were not diversity between two groups(χ2 =3 .26 ,P>0 .05) .IL‐10‐1082 G/G、G/A、A/A site the genotype frequencies were statistically significant between two groups(χ2 =14 .07 ,P<0 .01) .In Logistic multivariate regression analysis found that :be compared with IL‐10‐592 A/A ,carrying IL‐10‐592 C/A ,C/C group respectively the risk of breast cancer were OR=1 .039(95% CI:0 .484 -2 .233) ,P=0 .922 ,OR= 1 .635(95% CI:0 .683-3 .915) ,P =0 .270 ,which had no statistical significance .In Logistic multivariate regression analysis found that :be com‐pared with IL‐10‐1082 A/A ,carrying IL‐10‐1082 G/A、G/G group respectively the risk of breast cancer were OR=0 .424(95% CI:0 .210-0 .855) ,P=0 .016 ,OR=0 .455(95% CI:0 .178 -1 .163) ,P= 0 .100 .Conclusion IL‐10‐592 may be not associated with breast cancer susceptibility .IL‐10‐1082 G/A may be a protection factor with breast cancer susceptibility .
9.Clinical effect of low-dose homoharringtonine and cytarbine with long-course in treating atypical chronic myeloid leukaemia
Jichun SHEN ; Wenhua YANG ; Xiaomei LIU ; Yun GUO ; Yanxin CHEN ; Bing CEN
Clinical Medicine of China 2015;31(5):391-394
Objective To investigate the therapeutic effect of low-dose and long-course homoharringtonine and cytarbine (HA) in treating atypical chronic myeloid leukaemia (aCML).Methods Twenty-seven patients diagnosed atypical chronic myeloid leukaemia(aCML) from Oct.2003 to May 2014.in the Affiliated Hospital of Logistics University of People's Armed Police Force were divided into treatment and control groups.Fourteen cases in the treatment group were given the chemotherapy of HA (H:1.5 mg/(m2 · d),A:100 mg/(m2· d) for two weeks,and 13 cases in the control group were given the combined therapy of Hydroxycarbamide(1-3 g/d) and recombined human interferon α-2b(3×106U by intramuscular injection every other day) for four weeks.The haemoglobin (Hb) level,the numbers of white blood cell count (WBC) and platelet count(PLT) were measured.Moreover,the clinical effects were evaluated through measured hemogram and myelogram at 4 weeks after treatment.Results The levels of Hb,the numbers of WBC and PLT at before and 1 and 2 weeks in treatment group were as same as those in control group(P>0.05).While,the numbers of WBC and PLT at 2 weeks,as well as Hb and the numbers of WBC and PLT in 3 weeks,4 weeks in treatment group were significantly different from those in control group (P < 0.05).Furthermore,repeated measurement ANOVA showed that the levels of WBC,Hb,PLT between two groups were significant (F between groups =833.16,145.59,143.11;P<0.05),and there were significant differences at different time (F between groups =443.92,17.41,149.11;P < 0.05),meanwhile with interaction (F across group =69.77,43.26,75.25;P <0.05).In treatment group,there was 8 cases were complete remission,2 cases were partial remission and 4 cases were not released,and the total effective rate 71.4%.While in control group,there were no one was complete remission,2 cases were partial remission and 4 cases were not released,and the total effective rate was 15.4%.And the different was significant (x2 =11.25,P< 0.05).Conclusion The therapeutic effect of lowdose and long-course HA in treating atypical chronic myeloid leukaemia is more efficient and practical than traditional treatment.And its side effects are tolerable.
10.Effect of retigabine on median effective dose of bupivacaine and chloroprocaine for induction of convulsion in mice
Yanxin CHENG ; Hong LI ; Jun LI ; Fan ZHANG ; Yongxue CHEN ; Senming ZHAO
Chinese Journal of Anesthesiology 2012;(11):1340-1343
Objective To investigate the effect of KCNQ2/3 channel opener retigabine on the median effective dose (ED50) of bupivacaine and chloroprocaine for induction of convulsion in mice and the relationship between KCNQ2/3 channels and the neurotoxicity of local anesthetics.Methods Pathogen-free female Kunming mice,weighing 20-30 g,were used in the study.The experiment was performed in two parts.Part Ⅰ Sixty mice were randomly divided into 2 groups (n =30 each):control group (group C) and retigabine group (group R).The C and R groups were further divided into 3 subgroups with different doses of chlorprocaine (C + L1,C + L2 and C+ L3 groups,and R+ L1,R+ L2 and R+ L3 groups,n =10 each).In groups C and R,0.9% normal saline 0.005 ml/g and retigabine 20 mg/kg were injected intraperitoneally,respectively,and chlorprocaine was injected intraperitoneally 20 min later.The doses of chlorprocaine were 150.0,172.5 and 198.4 mg/kg in C + L1,C + L2 and C + L3 groups,respectively,and 198.4,228.2 and 262.4 mg/kg in R+ L1,R+ 12 and R+ L3 groups,respectively.Part Ⅱ Eighty mice were randomly divided into 2 groups (n =40 each):control group (group C) and retigabine group (group R).The C and R groups were further divided into 4 subgroups with different doses of bupivacaine (C + B1,C + B2,C + B3 and C + B4 groups,and R + B1,R + B2,R + B3 and R + B4 groups,n =10 each).In groups C and R,0.9% normal saline 0.005 ml/g and retigabine 20 mg/kg were injected intraperitoneally,respectively,and bupivacaine was injected intraperitoneally 20 min later.The doses of bupivacaine were 37.8,43.5,50.0 and 57.5 mg/kg in C + B1,C + B2,C + B3 and C + B4 groups,respectively,and 50.0,57.5,66.1 and 76.0 mg/kg in R + B1,R + B2,R + B3 and R + B4 groups,respectively.The ED50 and 95% confidence interval (CI) of bupivacaine and chloroprocaine for induction of convulsion were calculated by Probit analysis.Results The ED50(95% CI) of chloroprocaine was 165.3 (155.8-175.0) mg/kg,and the ED50(95%CI) of bupivacaine was 41.1 (36.7-44.5) mg/kg in C group.The ED50 (95% CI) of chloroprocaine was 212.4 (200.2-224.3) mg/kg,and the ED5o (95% CI)of bupivacaine was 51.5 (945.1-56.0)mg/kg in R group.Compared with group C,the ED50 of bupivacaine and chloroprocaine for induction of convulsion was significantly increased in group R (P < 0.01).Conclusion KCNQ2/3 channel opener retigabine can significantly increase the ED50 of bupivacaine and chloroprocaine for induction of convulsion and reduce convulsion induced by bupivacaine and chloroprocaine in mice,indicating that the neurotoxicity of local anesthetics is related to inhibition of KCNQ2/3 channels.