1.Combination chemotherapy with paclitaxel and oxaliplatin in 30 patients with advanced gastric cancer
Yigui CHEN ; Jianwei YANG ; Xuehua MAO
China Oncology 2001;0(02):-
Purpose: To evaluate the efficacy and toxicity of combination chemotherapy with paclitaxel and oxaliplatin (two new drugs) in patients with locally advanced and(or) metastatic gastric adenocarcinoma ( M/AGC). Methods: Between May 2001 and May 2002, 30 patients (22 male and 8 female) with a median age of 58 years (range35-80) were consecutively enrolled in this study. Oxaliplatin and paclitaxel were administered as a two-hour infusion every one or two weeks, respectively, and DDP or FUDR were infused in abdominal cavity every one week. Results: Thirty patients were evaluable for activity, with 2 complete and 17 partial responses, objective response rate( RR): 63% ( 95% CI: 46% -80%). Twenty-three of thirty patients (77%) experienced WHO grade Ⅰ-Ⅳ bone marrow suppression, which was the most common and serious toxicity. WHO Grade Ⅰ-Ⅲ side effect ( non-hematological toxicity) of gastrointestinal tract, liver, peripheral neuropathy, kidney , mucositis and heart occurred in 40%, 30%, 13%, 10%, 10% and 7% of patients, respectively. No patients withdrew because of treatment-related toxicity. Conclusions: Our data suggest that the combination of paclitaxel and oxaliplatin has promising therapeutic activity in patients with advanced gastric cancer. This regimen shows good efficacy and an acceptable safety profile in M/AGC patients, and may prove to be a suitable alternative regimen in this indication, especially for the patients with bad function of the heart , liver and kidney or old, physically weak patients.
2.STUDY ON BONE TISSUE ENGINEERING
Tianqiu MAO ; Fulin CHEN ; Weidong YANG
Medical Journal of Chinese People's Liberation Army 1981;0(04):-
To investigate the feasibility of using coral and other materials as scaffolds for bone tissue engineering, coral, coral hydroxyapatite(CHA), cancellous bone matrix and other natural biomaterials served as culture scaffolds of osteoblasts were manufactured. The results showed, in addition to PLA, PGA, PLGA and other synthetic polymers, some natural biomaterials are also ideal scaffolds materials for bone tissue engineering.
3.Determination of Three Bacteriostatic Agents in Taurine Eye Drops by HPLC
Ying YANG ; Rui MAO ; Naijiang CHEN
China Pharmacist 2017;20(9):1697-1699
Objective: To establish an HPLC method for the determination of three bacteriostatic agents ( methylparaben, eth-ylparaben, propylparaben) in taurine eye drops. Methods:The HPLC method was conducted on a Phenomenex Gemini C18 column ( 250 mm × 4. 6 mm, 5 μm ). The mobile phase was 1% acetic acid-methanol(40 :60). The flow rate was 1. 0 ml·min-1 and the de-tection wavelength was 254 nm with the injection volume of 20 μl and the column temperature of 25℃. Results:Methylparaben, eth-ylparaben and propylparaben showed good linear relationship (r>0. 999)within the range of 1. 00-19. 94μg·ml-1,2. 01-20. 08μg· ml-1 and 0. 21-10. 46 μg·ml-1,respectively. The average recoveries were 99. 20%-99. 90%, and the RSDs were 1. 34%-1. 54%(n=9). Conclusion:The method is accurate, reproducible and stable without interference, which can be used for the determination of three bacteriostatic agents in taurine eye drops.
4.Study on fingerprint for the quality control of Banlangen Granule
Lingjie ZENG ; Dongsheng YANG ; Songguang CHEN ; Mao CHEN ;
Chinese Traditional Patent Medicine 1992;0(02):-
AIM: To establish a fingerprint analytical method for ensuring the quality of Banlangen Granule (Isatis indigotica Fort). METHODS: According to pre column derivatization HPLC method, gradient elution with sodium acetate buffer (pH6.4) acetonitrile (95∶5) in a BDS C 18 column, was applied to detect amino acid at UV 360nm; and the coefficients of cosine of include angle and distance were employed to judge the quality similarity of the samples. RESULTS: The HPLC method is accurate and reproducible and makes almost all the peaks separated; and the two coefficients can show the similarity of each sample. CONCLUSION: The developed method is simple, accurate and operable and can efficiently control the quality of Banlangen Granule.
5.Multi-slice Spiral CT Manifestations of the Arrhythmogenic Right Ventricular Dysplasia
Lin QI ; Dingbiao MAO ; Ming LI ; Yang CHEN ; Yanqing HUA
Chinese Journal of Medical Imaging 2013;(11):834-836,840
Purpose To investigate the diagnostic value of the arrhythmogenic right ventricular dysplasia (ARVD) using multi-slice spiral CT (MSCT). Materials and Methods Thirty-four patients who were suspected as ARVD received right ventricular radiography, including 16 ARVD patients and 15 non-ARVD patients regarded as control group. The structural and shaped change of heart on reconstructed images of long axis, short axis and four cavity surface and analyze were observed, and MSCT features of right ventricular radiography characteristics were analyzed for ARVD patients. Results Sixteen cases of ARVD were correctly diagnosed by MSCT, and 14 cases had fatty infiltration including 11 cases of apex of heart, 8 cases of inferior wall, 5 cases of anterior wall, 5 cases of anterior wall of funnel area, 3 cases of diagram, 4 cases of papillary muscle, 6 cases of muscular trabecula and moderator band and 1 case of whole right ventricular free wall. Five cases showed scallop sign, 16 cases excessive trabecular change, 11 cases thinned changes, and 16 cases enlarged changes of right ventricular wall. Conclusion MSCT features of right ventricular for ARVD have relative diagnostic characteristics, and the scallop sign and excessive trabecular change of right ventricular wall are its specific imaging characteristics.
6.Defect and resolvent of HITACHI 7080 biochemical analyzer
Miankang CHEN ; Youli ZHOU ; Dayong MAO ; Jun YANG
Chinese Medical Equipment Journal 1993;0(05):-
This paper presents the configuration defect of HITACHI 7080 biochemical analyzer and the trouble from it.The resolvent is also put forward.
8.A primary study on the oxytocin levels, the cortisol levels and the relationship with severity of depression in the patients with major depression
Zhiyun XUN ; Jianli YANG ; Yuhui CHEN ; Hongjun TIAN ; Fuqiang MAO
Chinese Journal of Behavioral Medicine and Brain Science 2012;21(2):152-154
ObjectiveTo explore the difference of the oxytocin Levels and cortisol levels between major depression patients and normal controls,and the relationship of symptoms severity of major depression with oxytocin levels and cortisol levels.MethodsTwenty 18 ~ 45years old major depression patients and twenty six normal controls were tested by an enzyme-linked immunosorbent assay to evaluate the oxytocin levels and cortisol levels,and the Hamilton Rating Scale for Depression-17 item was used to evaluate the symptoms severity of depression in patient group.ResultsMann-Whitney test showed there were significantly differences in oxytocin level between patients and controls ( ( 213.60 ± 164.29 ) pg/ml vs ( 112.27 ± 101.21 ) pg/ml,z =- 2.306,P =0.021 ),but there were no significantly differences in cortisol level between two groups.Within the depressive sample( (0.131± 0.089) vs (0.107 ± 0.077 ) pg/ul,z =- 0.920,P =0.358 ),the severity of depressive symptom was positive correlated to the value of oxytocin ( r=0.599,P=0.005) and cortisol( r=0.691,P=0.001 ),the value of oxytocin was also positive correlated to the value of cortisol( r =0.743,P < 0.01 ),Multiple liner regression analyses showed that the value of oxytocin is an impact factor of the severity of depression.( adjusted R2 =0.358,F =11.578,P =0.003 ).ConclusionThis study indicated that the value of plasma oxytocin maybe significantly differences between depression and normal controls and the plasma oxytocin level maybe a factor which influence the severity of major depression,the relationship of the cortisol value and the severity of depression can not be confirmed.
9.Novel celiac artery lymph node dissection path in gastric cancer of stage Ⅲ C
Aiguo YANG ; Shunbao MAO ; Zhiyong CHEN ; Kai NIE
Chinese Journal of Digestive Surgery 2013;(1):34-37
Pathological types of gastric cancer in stage Ⅲ C include T4a-SEN3,T4b-SIN2,T4b-SIN3.Celiac artery metastatic lymphadenopathy fused into blocks,usually from bottom to top.Limited operation space revealed anatomical and pathological factors,the dissection of the celiac artery lymph nodes,processing the left gastric artery root difficulty.Application of novel celiac artery lymph nodes dissection path,avoiding the limitation of the celiac artery lymph node dissection space exposure factors,so that the dissection of the celiac artery lymph nodes is more complete,processing the left gastric artery root easily,reduce the amount of bleeding,shorten operation time,increase the average lymph node dissection and the Ⅲ C gastric cancer resection rate.
10.Myocardial pathology,lipid peroxidation and nitric oxide in diabetic rats
Guorong CHEN ; Sunzhong MAO ; Jianmin LI ; Kaiyan YANG ; Yun HU
Chinese Journal of Clinical and Experimental Pathology 2001;(2):146-149
Purpose To study myocardial pathology and its pathogenesis in diabetes. Methods Myocardial structure of alloxan induced diabetic rats was observed under light microscopy (LM)and transmission electron microscopy(TEM).Activity of superoxide dismutase(SOD),glutathione peroxidase (GSH-Px),nitric oxide synthase(NOS)and content of malondialdehyde (MDA),nitric oxide(NO) were detected biochemically in myocardial homogenate. Results Atrophy and degeneration of myocardium and interstitial fibrosis were found under LM and expansion of mitochondria and smooth endoplasmic reticulum, destruction of myofibril and interstitial proliferation of collogen fiber under TEM. Activity of SOD and GSH-Px decreased significantly, while content of NO and MDA and activity of NOS increased significantly in diabetic rats. Conclusion Atrophy of myocardium, expansion of mitochondria,destruction of myofibril and interstitial fibrosis are the main morphological changes of diabetic cardiomyopathy, and lipid peroxidation and NO may be involved in it.