2.Effect of sevoflurane preconditioning on intestinal injury in patients undergoing resection for liver cancer
Meiliang WEI ; Xu CHEN ; Jianchun YUAN
Chinese Journal of Anesthesiology 2014;34(11):1306-1308
Objective To evaluate the effect of sevoflurane preconditioning on intestinal injury in the patients undergoing resection for liver cancer.Methods Forty patients of both sexes,aged 20-60 yr,weighing 5075 kg,of ASA physical status Ⅱ or Ⅲ (liver function Child-Pugh grade A),undergoing resection for right liver cancer,were randomly divided into 2 groups (n =20 each):sevoflurane preconditioning group (S group) and control group (C group).Anesthesia was induced with target-controlled infusion of propofol and remifentanil.Tracheal intubation was facilitated with cisatracurium.Anesthesia was maintained with target-controlled infusion of propofol and remifentanil.S group inhaled sevoflurane with the end-tidal concentration of 2.0% for 30 min starting from the end of intubation,followed by washout.Before induction (T0),immediately after hepatic portal was clamped (T1),at 1,3 and 6 h after occlusion of hepatic portal was released (T2-4) and at 24 h after operation (T5),arterial blood samples were obtained for determination of serum tumor necrosis factor-alpha (TNF-α),intestinal fatty acids binding protein (Ⅰ-FABP) and D-lactate levels.Results The concentrations of serum TNF-α and D-lactate started to rise at T2,peaked at T4,and started to decline at T5,and the serum Ⅰ-FABP concentrations started to rise at T2,peaked at T3,and started to decline at T4 in the two groups.The concentrations of serum TNF-α,Ⅰ-FABP and D-lactate were significantly lower in S group than in C group.Conclusion Sevoflurane preconditioning can inhibit inflammatory responses and reduce intestinal injury in the patients undergoing resection for liver cancer.
3.Willingness of medical undergraduate students choose general practitioners in community health-care service as their career
Qing GUO ; Chenjia MAO ; Zhixin JIANG ; Lei YANG ; Jianchun YUAN
Chinese Journal of General Practitioners 2008;7(12):814-817
Objective To understand willingness of current medical undergraduates to work at community health-care service(CHS)institutions after their graduation to provides information for professional training for them.Methods Totally,2714 medical undergraduate students were recruited from three medical schools in east,middle and west China by multi-level sampling methods for questionnaire survey on their basic information and willingness to be employed at CHS institutions.results of the survey were described by relative numeric and tested by chi-square test for smtistical inference.Results About 60.6%of medical undergraduate students were willing to work at CHS organizations permanently or temporarily.Their willingness to work there differed with their native living areas and grades they were studying significantly(P<0.01).Reason for those they would work at CHS organizations after graduation included work less stress and easier,and that for those reluctant to work there included low-income and lack of social respect for general practitioners.Conclusions Nowadays,few medical undergraduate students would like to work at CHS organizations after their graduation,which was influenced mainly by traditional ideas and concepts of employment,personal career devdopment,economic income,and so on.It is suggested that ideas of community work be strengthened for medical undergraduate students and their employment concepts be changed in the future.
4.Cost-effectiveness analysis of entecavir and lamivudine in treatment of early stage acute-on-chronic liver failure
Longgen LIU ; Jianchun LU ; Yuan XUE ; Chunyan YE
Journal of Chinese Physician 2016;18(3):343-346
Objective To evaluate the cost-effectiveness of entecavir and lamivudine in treatment of early stage acute on chronic liver failure (ACLF),and analyze the predictive factors.Methods Forty nine patients with early ACLF were enrolled.Of which,28 patients were treated with entecavir,and 21 patients were treated with lamivudine.Mortality,length of hospital stay,cost,liver function,coagulation function,and model for end-stage liver disease (MELD) score were compared between two groups.Pharmacoeconomic evaluation was taken using cost-effectiveness analysis and cost minimization analysis.Results Mortality,length of hospital stay and cost had no significant difference between two groups.Ratio of costeffectiveness in lamivudine group was higher than that in entecavir group.Cox analysis showed that primary peritonitis and MELD score at the end of the second week were the main predictive factors.Conclusions Entecavir cannot improve the survival rate of early stage ACLF compared to lamivudine,but may provide economic benefit to patients with early stage ALCF.
5.Clinical Observations on the Treatment of Ramsay Hunt Syndrome by Blood-letting Puncture and Cupping as Main Therapy
Yaguang SONG ; Jianchun ZHAO ; Hui YUAN ; Siyou WANG
Journal of Acupuncture and Tuina Science 2005;3(2):42-45
Purpose: To investigate the clinical efficacy of blood-letting puncture and cupping in cooperation with acupuncture and moxibustion for treating Ramsay Hunt syndrome. Atreatment group of 32 cases was treated by blood-letting puncture with plum-blossom needle and cupping in cooperation with acupuncture and moxibustion and a control group of 32 cases,with acupuncture and moxibustion, and andaciclovir. Results and conclusion: The cure and marked effectiveness rate was 81.2% in the treatment group and 56.2% in the control group after 4 courses of treatment. It was higher in the treatment group than in the control group (P<0.05). The short-term otalgia-relieving rate was also significantly higher in the treatment group than in the control group (P<0.01).
6.Preparation and in Vitro Dissolution Characteristics of Famotidine Dispersible Tablets
Jianchun ZHANG ; Yuan WANG ; Dingji CHEN ; Chunhong WANG ; Yaxu WEN
China Pharmacy 2001;0(08):-
OBJECTIVE:To study the preparation of famotidine dispersible tablets and to observe the dissolution characteristics in vitro METHODS:To optimize the conditions for preparation by orthogonal design RESULTS:The tablets could completely disintegrate within 1 min;In vitro dissolution test showed T50=0 56min CONCLUSION:In comparison with commercial famotidine tablets,the dispersible tablets prepared in optimum condition were rapid in disintegration and homogenous in dispersal
7.The value of BCSG1 on evaluating the curative effect of neoadjuvant chemotherapy for breast cancer
Jinsong HE ; Jianhui YUAN ; Xianming WANG ; Liangfeng GUO ; Guoxian ZHU ; Jianchun WU ; Rong LI ; Min WANG ; Weicai CHEN ; Huisheng WU
Chinese Journal of General Surgery 2001;0(08):-
Objective To study the value of BCSG1 on evaluating the curative effect of neoadjuvant chemotherapy(NC) for breast cancer.Methods The expression of BCSG1 in cancer tissue was assayed by immunohistochemistry and RT-PCR in 36 cases of breast cancer patients before and after receiving NC of CEF(cyclophosphamide,epirubicin and fluorouracil) regimen.The therapeutic response of NC was evaluated by morphological and pathological observation.The relationship between expression of BCSG1 and morphological response to NC was analyzed.Results Among the studied cases,the diameter of tumor significantly decreased(P
8.Involvement of the Ca2+ signaling pathway in osteoprotegerin inhibition of osteoclast differentiation and maturation.
Yingxiao FU ; Jianhong GU ; Yi WANG ; Yan YUAN ; Xuezhong LIU ; Jianchun BIAN ; Zong Ping LIU
Journal of Veterinary Science 2015;16(2):151-156
The purpose of this study was to determine whether the Ca2+ signaling pathway is involved in the ability of osteoprotegerin (OPG) to inhibit osteoclast differentiation and maturation. RAW264.7 cells were incubated with macrophage colony-stimulating factor (M-CSF) + receptor activator of nuclear factor-kappaB ligand (RANKL) to stimulate osteoclastogenesis and then treated with different concentrations of OPG, an inhibitor of osteoclast differentiation. The intracellular Ca2+ concentration [Ca2+]i and phosphorylation of Ca2+/calmodulin-dependent protein kinase II (CaMKII) in the different treatment groups were measured by flow cytometry and Western blotting, respectively. The results confirmed that M-CSF + RANKL significantly increased [Ca2+]i and CaMKII phosphorylation in osteoclasts (p < 0.01), and that these effects were subsequently decreased by OPG treatment. Exposure to specific inhibitors of the Ca2+ signaling pathway revealed that these changes varied between the different OPG treatment groups. Findings from the present study indicated that the Ca2+ signaling pathway is involved in both the regulation of osteoclastogenesis as well as inhibition of osteoclast differentiation and activation by OPG.
Animals
;
Calcium/*metabolism
;
*Calcium Signaling
;
*Cell Differentiation/drug effects
;
Cell Line
;
Cell Survival/drug effects
;
Gene Expression Regulation/drug effects
;
Macrophage Colony-Stimulating Factor/metabolism
;
Mice
;
Osteoclasts/*cytology/*drug effects/*metabolism
;
Osteoprotegerin/*pharmacology
;
RANK Ligand/metabolism
9.Laparoscopic-assisted natural orifice specimen extraction radical left colectomy.
Shifeng ZHANG ; Zhijie DING ; Xingfeng QIU ; Sibo YUAN ; Feng YAN ; Xinya HONG ; Jianchun CAI
Chinese Journal of Gastrointestinal Surgery 2015;18(6):577-580
OBJECTIVETo explore the feasibility of laparoscopic-assisted natural orifice specimen extraction radical left colectomy.
METHODSRetrospective analysis was performed on clinicopathological dada of 15 colorectal patients who were treated by laparoscopic-assisted anal specimen extraction radical left colectomy with self-developed surgical instrument Cai tube between January and September in 2014. Tumor location included descending colon (n=3), the junction of descending colon and sigmoid colon (n=2), the sigmoid colon (n=6) and upper rectum (n=4). Clinical efficacy of patients was observed.
RESULTSThere were no perioperative deaths or postoperative complications, such as anastomotic bleeding or leakage. The median operation time was 257 (range 103-337) min, median blood loss was 50(range 20-200) ml, median time to first flatus was 3 (range 1-5) d and median hospital stay was 14 (range 11-21) d. All the patients had good quality of life and normal defecation function without tumor recurrence or metastasis after 1-8 months of follow-up.
CONCLUSIONLaparoscopic-assisted anal specimen extraction radical left colectomy is safe and feasible.
Colectomy ; Colon, Sigmoid ; Humans ; Laparoscopy ; Length of Stay ; Operative Time ; Postoperative Complications ; Quality of Life ; Rectum ; Retrospective Studies
10.Cadmium induces apoptosis in primary rat osteoblasts through caspase and mitogen-activated protein kinase pathways.
Hongyan ZHAO ; Wei LIU ; Yi WANG ; Nannan DAI ; Jianhong GU ; Yan YUAN ; Xuezhong LIU ; Jianchun BIAN ; Zong Ping LIU
Journal of Veterinary Science 2015;16(3):297-306
Exposure to cadmium (Cd) induces apoptosis in osteoblasts (OBs); however, little information is available regarding the specific mechanisms of Cd-induced primary rat OB apoptosis. In this study, Cd reduced cell viability, damaged cell membranes and induced apoptosis in OBs. We observed decreased mitochondrial transmembrane potentials, ultrastructure collapse, enhanced caspase-3 activity, and increased concentrations of cleaved PARP, cleaved caspase-9 and cleaved caspase-3 following Cd treatment. Cd also increased the phosphorylation of p38-mitogen-activated protein kinase (MAPK), extracellular signal-regulated kinases (ERK)1/2 and c-jun N-terminal kinase (JNK) in OBs. Pretreatment with the caspase inhibitor, N-benzyloxycarbonyl-Val-Ala-Asp-fluoromethylketone, ERK1/2 inhibitor (U0126), p38 inhibitor (SB203580) and JNK inhibitor (SP600125) abrogated Cd-induced cell apoptosis. Furthermore, Cd-treated OBs exhibited signs of oxidative stress protection, including increased antioxidant enzymes superoxide dismutase and glutathione reductase levels and decreased formation of reactive oxygen species. Taken together, the results of our study clarified that Cd has direct cytotoxic effects on OBs, which are mediated by caspase- and MAPK pathways in Cd-induced apoptosis of OBs.
Animals
;
Apoptosis/*drug effects
;
Cadmium/*toxicity
;
Caspases/metabolism
;
Environmental Pollutants/*toxicity
;
Osteoblasts/*drug effects/metabolism
;
Oxidative Stress/drug effects
;
Rats
;
Rats, Sprague-Dawley
;
p38 Mitogen-Activated Protein Kinases/metabolism