1.Roles of ADAM17 in tumor metastasis and its molecular mechanism
Jun CAO ; Zhiqiang LING ; Minghua GE
Journal of International Oncology 2014;41(10):721-724
As an important member of the adisintegrin and metalloproteinase (ADAM) superfamily,ADAM17 can mediate a variety of membrane molecular hydrolysis off,such as adhesion molecules,cytokines,growth factors,etc,and play an important role in regulating tumor cell adhesion,apoptosis,metastasis and proliferation through the EGFR-PI3K-Akt pathway,Notch signaling pathway and other signaling pathways.The research of ADAM17 targeted drugs provides a new direction for cancer therapy.
2.Study on the effectiveness and safety of ginseng polysaccharide adjuvant GP chemotherapy in the treatment of non small cell lung cancer
Minjie GE ; Min YU ; Xinyang CAO
Chinese Journal of Biochemical Pharmaceutics 2015;37(4):132-134
Objective To discuss the treatment effect of ginseng polysaccharide injection auxiliary GP chemotherapy for patients with non-small cell lung cancer.Methods 130 cases of patients with non-small cell lung cancer from June 2011 to June 2013 were randomly divided into two groups, 65 cases in each group.The control group was given gemcitabine and cisplatin treatment.The observation group were treated with ginseng polysaccharide injection on the basis of the control group.After 3 months of continuous therapy, the therapeutic effect, T-lymphocyte subsets, adverse events, quality of life scores of the two groups were compared, and survival in two groups of patients were also compared after 1 year follow-up.Results The total efficiency and clinical benefit rate in observation group were 58.5%, significantly better than the control group ( 41.5%) , the difference was statistically significant (χ2 =3.72, P<0.05);CD3, CD4 and CD4 /CD8 in observation group were significantly higher than the control group, the differences were statistically significant (t =5.735, 7.885, 7.326, P<0.05), whereas CD8 was significantly lower than the control group, the difference was statistically significant (t=2.442, P<0.05).The main adverse reactions of the two groups of patients during treatment were myelosuppression (WBC and platelet decreasing and anemia ) and gastrointestinal reaction.Score of life quality in observation group was ( 71.5 ±12.9 ) after treatment, significantly higher than the control group (64.2 ±12.2), the difference was statistically significant (t=3.315, P<0.05).1-year survival rate in the observation group were 63.1%, and 52.3% in the control group.Conclusion Ginseng Polysaccharide injection auxiliary GP chemotherapy for non-small cell lung cancer has significantly efficacy, enhances immunity, reduces side effects, better quality of life.
3.Determination of the Concentration of Ambroxol Hydrochloride in Human Plasma with RP-HPLC
Shengrong GE ; Furong AN ; Huiming CAO ; Jing YUAN
China Pharmacy 1991;0(01):-
OBJECTIVE:A RP-HPLC method was established to determine the concentration of ambroxol hydrochloride in human plasma.METHODS:Waters HPLC instrument was used with the Hypersil BDS C 18 column(5?m,250mm?4.6mm). Ditiazem hydrochloride was chosen as the internal standard.The mobile phase was composed of acetonitrile-methyl alcohol-0.01mol/L phosphatic buffer(pH7.0)-tetrahydrofuran(35∶35∶27.5∶2.5).Flow rate was1.0ml/min.Detection wavelength was242nm.A single oral dose of90mg imported ambroxol hydrochloride tablet was given to9healthy male volunteers.Ambro xol concentration in plasma was assayed.RESULTS:The standard curve of ambroxol hydrochloride was linear in the range of10~640ng/ml.The minium detection concentration was10ng/ml.The extraction recovery was more than90%.A one-compartment open pharmacokinetic model was adopted in ambroxol plasma concentration-time data analysis.The main pharmac okinetic parameters were as follows:C max =(226.53?34.59)ng/ml,T max =(1.82?0.80)h,T 1/2ke =(6.27?0.66)h,AUC 0~24 =(2363.55?448.86)ng/(h?ml).CONCLUSION:The method is simple.The sensitivity and accuracy are high.It is applicable to study the pharmacokinetics of ambroxol hydrochloride in healthy male volunteers.
4.Acellular tissue matrix mesh for inguinal herniopasty
Shaojie LI ; Jianxiong TANG ; Lei HUANG ; Zhao CAO ; Ge CHEN
Chinese Journal of General Surgery 2011;26(12):1039-1041
Objective To evaluate acellular tissue matrix mesh in inguinal hernioplasty in young male patients.Methods Clinical outcome and sexual function were evaluated on 12 young male inguinal hernia patients undergoing inguinal hernioplasty by ACTM mesh.Results The mean operation time was 62 minutes.Postoperative analgesics were needed for an average of 1.45 days (range,0 -4 days).The average postoperative hospital stay was 3.9 days,and patients were able to return to normal activity,after a mean 11.8 days.All patients were followed-up for a mean duration of 9.54 months(range,6 - 16 months).Two patients complained pain one month after surgery and the pain disappeared later without any medical treatment.There was no hernia recurrence and foreign body feelings,nor sexual and reproductive problems.Conclusions The ACTM mesh is a safe and effective material for inguinal hernioplasty,especially in young male patients.
5.Aggrecanases and osteoarthritis
Chao LI ; Yongping CAO ; Zhenpeng GUAN ; Deyong HUANG ; Zigang GE
Journal of Peking University(Health Sciences) 2003;0(05):-
Osteoarthritis is mainly caused by the degenerative changes of cartilage and cartilage extracellular matrix,while Aggrecanases degradate Proteoglycans which are the major components of cartilage.This review includes three aspects:(1) We have concluded the major enzymes(ADAMTS-4 and ADAMTS-5) which regulate the metabolism of cartilage extracellular matrix.Meanwhile,we have summarized the structure of aggrecanases(ADAMTS-4 and ADAMTS-5) and introduced the function of each regional structure;(2) We have concluded the way cytokines and glycosaminoglycans regulate the metabolism of aggrecanases,and discussed the regulation and control principle of cytokines and glycosaminoglycan;(3) We have summarized the majority of inhibitors to the aggrecanases,introduced the endogenic inhibitors,and put our emphasis on the extrinsic inhibitors(chelating agents,polypeptides and so on).Through deeper research on the enzymes,it will help us further understand the pathogenesis of osteoarthritis,and open up new avenues to clinical treatment.Abstract:SUMM ARY Osteoarthritis is mainly caused by the degenerative changes of cartilage and cartilage extra-cellular matrix,while Aggrecanases degradate Proteoglycanswhich are the major components of cartilage.This review includes three aspects:(1) W e have concluded the major enzymes(ADAMTS-4 and ADAMTS-5) which regulate the metabolism of cartilage extracellular matrix.Meanwhile,we have sum-marized the structure of aggrecanases(ADAMTS-4 and ADAMTS-5) and introduced the function of each regional structure;(2) W e have concluded the way cytokines and glycosam inoglycans regulate the metab-olism of aggrecanases,and d iscussed the regulation and control principle of cytokines and glycosam inogly-can;(3) W e have summarized the majority of inhibitors to the aggrecanases,introduced the endogenic inhibitors,and put our emphasis on the extrinsic inhibitors(chelating agents,polypeptides and so on).Through deeper research on the enzymes,it will help us further understand the pathogenesis of osteoar-thritis,and open up new avenues to clinical treatment.
6.Influence of bloody cervical cell samples on HPV genotyping detection
Yanmei GE ; Hang YUANG ; Suyi FAN ; Yuan MAO ; Peng CAO
International Journal of Laboratory Medicine 2017;38(11):1499-1501
Objective To investigate the influence of bloody cervical cell samples on human papillomavirus(HPV) genotyping detection using flowcytometry fluorescence hybridization kit.Methods According to the concentration of hemoglobin(Hb),cervical cell samples were divided into five groups,including group A with Hb of 0 g/L(10 cases),group B with 0 g/L
7.Survey of the three specialist medical practices including neurosurgery in Shanghai
Ge LI ; Xiaohong CAO ; Wei WANG ; Yajie ZHU ; Lida LI
Chinese Journal of Hospital Administration 2010;26(5):382-386
Objective To probe into the medical practicing of neurosurgery, thoracic surgery, and cardiac and great vessels surgery in Shanghai, discovering measures and suggestions for improvement Methods Such methods as onsite inspection and questionnaires were called into play to study the practice of neurosurgery, thoracic surgery, and cardiac and great vessels surgery in 68 secondary and tertiary hospitals. Results Such three disciplines in the 68 hospitals have in total 3288 beds, 1142 medical practitioners, 19 assistant medical practitioners, and 1983 nurses. In 10 of the 68 hospitals, the medical space for these disciplines is non-standard; In 3 hospitals, personnel use is non-standard in general; 8% of the medical records are incompliant in generals 15% of the prescriptions are incompliant in general. Conclusion Medical practicing of neurosurgery, thoracic surgery, and cardiac and great vessels surgery in Shanghai is found to be legally compliant in general. However, there exist defects in medical space, personnel use, as well as medical records and prescriptions. In this regard, enhanced management and inspection are recommended.
8.Establishment of the endometriosis rat model in intimal window period
Fang CAO ; Xiaoyang HUANG ; Sumei GE ; Ke XU ; Li CHEN
Chongqing Medicine 2015;(27):3805-3807
Objective To research the endometrial receptivity by established the endometriosis rat model in intimal window period.Methods The autologous endometrial tissues of 22 sexually mature SD rats were transplanted into the homonymy abdomi-nal wall and offside uterine mesometrium.After four weeks,we randomly dissected two rats and observed the growth of etopic en-dometrium.The EMs rats were mated with male rats in the same cage and vaginal plug was observed in the next day.The histomor-phology of eutopic and ectopic endometrial was observed in the fifth day of pregnancy.Results Ectopic endometrium was grown in the abdominal wall and mesometrium,which formed a small bulge cystic mass in 20 rats.All foci was showed adhesion to the sur-rounding tissues in a different extent.In the light microscope,the morphology of ectopic endometrial was as the same as nomal en-dometrium.The establishment of the endometriosis rat mode is successful.Vaginal plug was positive the next day.Nonoperative side uterine was full of fluid in the fifth day of pregnancy.Eutopic and ectopic endometrium were in the secretory phase..Conclusion It is a successful method to establish a rat model of endometriosis by autotransplantion of endometrium.The endometrium of EMs model rats is in embryo implantation window period,and it provides a convenient model for studying endometrial receptivity.
9.Atorvastatin Inhibits High Glucose-induced Oxidative Stress Injury in Human Umbilical Vein Endothelial Cells by SIRT1/NADPH Oxidase Pathway
Na CAO ; Liqi GE ; Mingyue CHENG ; Zhuoqi ZHANG ; Zhirong WANG
Chinese Circulation Journal 2014;(12):1000-1004
Objective: To explore the effect of atorvastatin (Atv) on high glucose-induced oxidative stress injury in human umbilical vein endothelial cells (HUVECs) by SIRT1/NADPH oxidase pathway with the possible mechanisms.
Methods: HUVECs were cultured in low glucose medium and then divided into 6 experimental groups:①Normal group,②Osmotic pressure control group,③High glucose (HG) group,④HG+Atv (0.1, 1.0, 10.0)μmol/L group,⑤HG+sirtinol (SIRT1 inhibitor) group,⑥HG+apocynin (NOX4 inhibitor) group, and HUVECs were further cultured for 24 hours. The cell proliferation was examined by CCK-8 kit, ROS level was detected by lfow cytometry method, protein expressions of SIRT1 and NOX4 were measured by Western blot analysis.
Results: ① Compared with Normal group, HG group had decreased HUVECs proliferation, Atv improved the HG inhibited proliferation in a does dependent manner. ② HG group had the higher level of ROS, increased NOX4 protein expression and decreased SIRT1 protein expression. ③ In HG condition, Atv up-regulated SIRT1 expression and down-regulated ROS and NOX4 expressions in a does dependent manner.④In HG condition, sirtinol decreased SIRT1 expression, increased NOX4 expression, and apocynin decreased NOX4 expression, while it had no inlfuence on SIRT1 expression.
Conclusion: Atorvastatin could resist HG-induced oxidative stress injury in HUVECs, which might be related to up-regulated SIRT1 expression, and SIRTI plays the role in NADPH oxidase at upstream.
10.Nursing of the morbidly obese patients treated with laparoscopic vertical banded gastroplasty
Yuefeng WU ; Ping CAO ; Xiaoli GE ; Chunjuan ZHOU ; Lianqin XU
Academic Journal of Second Military Medical University 2001;22(5):478-480
Objective: To study the nursing of patients with morbid obesity treated with laparoscopic vertical banded gastroplasty (LVBG). Methods: Before operation, obese degree, obesity-related conditions and mental states were examined routinely. Monitoring of respiratory tract, observing operative complications and instructing of diets were done after operation. Results: Among 6 patients, 5 were at the third degree of obese, one was at second. In obesity-related conditions, 4 patients had hypertension and acantha derma, 1 had arthritis, and all had respiratory sleeping syndrome. The operations were all successful. The food amount food and body weight both decreased significantly 1 month after operation. The common operative complications were mild bleeding (1 case), shoulder-back pain (1 case), nausea and vomiting (5 cases). Diet principle was high protein, low energy, liquid food was the first choice. Conclusion: Observing and preventing respiratory sleeping syndrome are the main points of postoperative cares. Instructing patients to establish correct diet habit is the key to reach the best efficacy of LVBG.