1.Related factors in influencing remission of type 2 diabetes after bariatric surgery
Chinese Journal of Endocrinology and Metabolism 2015;(7):629-633
Type 2 diabetes(T2DM) is the collective result of insulin resistance in both muscle and liver andβ cell function failure. Traditional pharmaceutical therapy fails in ceasing progressive decline in β cell function. Bariatric surgery has been widely accepted as an efficient measure to treat diabetes. However, the prevalent standards mainly based on body mass index can not meet the demand for promoting remission rate. Related factors should be included in prediction of post-operative remission, like end-point setting, T2DM status, biochemical index, and operative method etc. The combination of these factors can be used to benefit more patients with diabetes.
2.Combination of TMPRSS2 promoter regulation of CD-5-FC gene system and phytochemical drugs effect prostate cancer 22RV1 in vitro
Chinese Journal of Urology 2017;38(3):216-220
Objective To explore the effects of TMPRSS2 promoted suicide gene CD-5-FC combined with phytochemicals on the proliferation and apoptosis of prostate cancer (PCa) specific cell-line 22RV1.Methods From March 2016 to October 2016 TMPRSS2-VISA-CD/UPRT'vector was used to deliver pro-drug 5-FC (5-Fluorocytosine) in to PCa specific cell-line 22RV1.Transfection effect was verified by Western-blotting.5-FC,5-FU (5-Fluorouracil) and four phytochemicals epigallocatechin gallate (ECGC),Genistein,Daidzein,and Equol were selected in this study.MTS assay was performed to select dosages,which can kill 10%-40% of 22RV1 cells,from their pre-set drug concentrations,respectively.According to their select concentrations,either 5-FC plasmid or 5-FU in combination with one of four phytochemicals were added in 22RV1 cells in orders,and then cultured them together.Besides,these four phytochemicals were added in 22RV1 cells individually regarding their selecting concentrations and cultured at the same time.Cell viability was detected by MTS assay on 24hrs,48hrs and 72hrs.Comparing the cell killing rates between the combination groups and each single drug groups on cell-line 22RV1.Results TMPRSS2-VISA-CD/UPRT'plasmid with 5-FC was transfected on PCa specific cell-line 22RV1 successfully.The most obvious transfection occurred on 48hrs.The selected concentration of the pro-drug 5-FC were 83.32 μmol/L and 833.20 μmol/L,5-FU were 76.87 mol/L and 768.70 μmol/L.The concentrations of four phytochemical agents were 2.00 μmol/L,10.00 μmol/L and 20.00 μmol/L.In term of the cell killing numbers,results showed that the combination treatment of 83.32 μmol/L 5-FC/ 76.87μmol/L 5-FU and 10.00 μmol/L/20.00 μmol/L four phytochemicals compared with 10.00 μmol/L/20.00 μmol/L single treatment of four phytochemicals,respectively,there was no significant difference (P >0.05),while the combination treatment of 833.20 μmol/L 5-FC/768.70 μ mol/L 5-FU and 2.00 μmol/L/10.00 μmol/L four phytochemicals compared with 2.00 μ mol/L/10.00 μmol/L single treatment of four phytochemicals,respectively,there was a significant difference (P < 0.05).In addition,this study proved that 83.32 μmol/L 5-FC and 76.87 μmol/L 5-FU,833.20 μmol/L 5-FC and 768.70 μmol/L 5-FU reached the same cell killing effect,and there was no statistical difference (P > 0.05).Thus the suicide gene transfection was successful,and its function was the same as the effect of cytotoxic drugs.Conclusions This study has proved that this plasmid with 5-FC suicide gene system can be successfully and efficiently transfected into PCa cells 22RV1.As the pro-drug of 5-FU,5-FC got similar treatment effect with 5-FU,and inhibited cell proliferation.There was no synergistic reaction of enhancing cell apoptosis after combined phytochemical drugs EGCG,Genistein,Daidzen,Equol with suicide gene therapy on 22RV1 cell-line.
3.Determination of Bilirubin in Zhenhuang Oral Liquid by Diazotize Solution-Spectrophotometry
China Pharmacy 2001;0(10):-
OBJECTIVE:To establish a diazotize solution-spectrophotometry for the determination of bilirubin in zhenhuang oral liquid.METHODS:The solution to be determined was added with diazotize solution and the absorbability was detected at a detective wavelength of533nm.RESULTS:The calibration curve was linear for bilirubin at the range of1.07~8.56?g/ml(r=0.9999).The average recovery of loading sample was100.2%(RSD=0.73%).CONCLUSION:The method is simple,reproducible,cost-effective and suitable for the determination and quality control of bilirubin in zhenhuang oral liquid.
4.The investigation of emotional state among users of amphetamine-type-stimulants under compulsory seclusion rehabilitation in Shaoxing
Chinese Journal of Primary Medicine and Pharmacy 2017;24(18):2829-2834
Objective to investigate the emotional state and childhood trauma among users of amphetaminetype-stimulants under compulsory seclusion rehabilitation in Shaoxing.Methods A cross-sectional design was conducted on 140 users of ATS in Shaoxing compulsory isolation drug rehabilitation center,collecting general information using homemade questionnaires.Using the Patient Health Questionnaire (PHQ-9),Generalized Anxiety Disorder Scale (GAD-7) and Mood Disorder Questionnaire(MDQ) to investigate the emotional state of users of ATS.The Childhood Trauma Questionnaire (CTQ) was applied to explore the childhood trauma experiences of users of ATS.Results Among the 140 users of ATS,84 (60%) users had emotional problems,24 users (17.14%) of anxiety disorder,22 users (15.72%) of depression,27 users (19.28%) of depression and anxiety disorder.66 users (47.1%)experienced at least one childhood trauma.The most common childhood trauma is the physical neglect,60 users (42.9%),followed by emotional neglect in 23 users(16.4%),again sexual abuse in 18 users (12.9%),emotional abuse and physical abuse is relatively fewer.Conclusion Among users of ATS under compulsory seclusion rehabilitation,emotional problems is prevalent.Proper emotional intervention and treatment in users of ATS would promote their mental health,thereby reducing the re-use of ATS,better return to society life.
5.The correlation between choroidal thickness and diabetic retinopathy
Anyi LIANG ; Dan CAO ; Liang ZHANG
Chinese Journal of Ocular Fundus Diseases 2017;33(3):315-318
Choroidal thickness and its relevance with retinal disease has been widely studied in recent years,as choroid is an important source of retina blood supply.Diabetic retinopathy (DR) studies have been focused on retinal vascular injury and related circulatory disorders for a long time,however recent studies have found that choroidal blood vessels are also affected by diabetes,including the thickness changes.The choroidal thickness of diabetic patients is thinner than normal.There is no conclusive conclusion about choroidal thickness and the severity of DR lesions,as the choroid thickness results are determined by multiple factors,including diseases,ocular conditions (choroidal vascular status,ocular axial length,refractory errors and other eye parameters),systemic factors (age and sex) and measurement methods.Therefore,it is necessary to calibrate the ocular and extra-ocular factors affecting choroidal thickness when trying to further clarify the relationship between the choroidal thickness and DR.
6.Curcumin attenuates UVB-induced oxidative stress and cell death by activating Nrf2 signaling
Li LIANG ; Linling QUE ; Baoshan CAO ; Mingnan CAO ; Siwang YU
Chinese Journal of Radiological Medicine and Protection 2014;34(8):583-587
Objective To investigate the effects of curcumin on UVB-induced elevation of cellular ROS level and cell death and to explore the involvement of transcription factor Nrf2.Methods Mouse embryonic fibroblasts (MEFs) were pretreated with or without curcumin then irradiated with UVB.The cell viability,cellular ROS level and protein levels of Nrf2 and HO1 were determined by MTT assay,DCFH fluorescence and Western blotting,respectively.These measurements were also performed in Nrf2 (-/-) MEFs.Results UVB irradiation elevated cellular ROS level and decreased cell viability of MEFs(t =16.65,15.89,P < 0.05),while the curcumin pretreatment significantly attenuated the deleterious effects of UVB(t =11.88,3.77,P < 0.05).UVB irradiation moderately increased the protein levels of Nrf2 and HO1 and activated JNK and ERK.The curcumin pretreatment led to more remarked elevation of Nrf2 and HO1 proteins,while inhibited UVB-activated JNK and ERK,but it had little effect on p38MAPK.In contrast,Nrf2 (-/-) MEFs showed significantly decrease in Nrf2 and HO1 expressions and were more susceptible to UVB-induced damages.Interestingly,the protective effects of curcumin were also greatly compromised in Nrf2 (-/-) MEFs (t =16.73,-8.23,P < 0.05).Conclusions Curcumin can attenuate UVB-induced oxidative damages in MEFs by activating Nrf2 signaling.
7.Analysis on Supply-side Structural Reform Strategy of Drug Distribution Based on Structure-conduct-per-formance Analysis Paradigm
Fan LI ; Boyang YU ; Renyuan CAO ; Yaru CAO ; Liang HONG
China Pharmacy 2017;28(10):1297-1301
OBJECTIVE:To provide basic industrial research and development recommendations for the supply-side structural reform in drug distribution in China. METHODS:Structure-conduct-performance(SCP)analysis paradigm from Harvard was used for in-depth study of market structure,business conduct and business performance in China since 2010. RESULTS:Since 2010, drug distribution industry in China had shown the scale of decline in the growth rate,low market concentration,increased barriers to entry,the leading of state-owned capital,etc. Though corporate mergers and acquisitions and public financing expanded the scale,management information,third-party logistics,Internet+and pharmacy alliance business model flourished,the industry op-erating performance was poor,state-owned enterprises showed poor performance. CONCLUSIONS:The transformation and upgrad-ing of the industry business model should be promoted by targetedly accelerating the supply-side structural reforms in the drug distri-bution industry,encouraging corporate finance mergers,breaking local protectionism,developing cooperative pharmacies and phar-maceutical third-party logistics alliances and leveraging the Internet.
8.Delphi technique application in the evaluation of access to ophthalmic surgery
Liang YE ; Tiantian YE ; Xiaojia CAO
Chinese Journal of Medical Science Research Management 2010;23(6):373-375
Objective To establish an evaluation index system for access to ophthalmic surgery so as to standardize the access. Method Collect 14 ophthalmologists' recommendations on access criteria for ophthalmic surgery in two rounds of questionnaire survey by Delphi method. Results The return rate of rounds of consultation questionnaire was 93.33%, and the average expert authority coefficient was 0.78.Nine ophthalmic surgery access indicators were established. The coordination of expert coefficient was 0.521 after two consultation. It had significant difference ( P<0.01 ). Conclusion The ophthalmic surgery access indicator system is highly credible and allows quantitative assessment of ophthalmic surgery from various aspects. It is more demanding for ophthalmologist, and gets more involvement of patients in the evaluation of ophthalmic surgery access. It could contribute to scientific and rational decision-making on access for ophthalmic surgery.
9.Characteristics of lymph node metastasis and surgical treatment of gastric stump cancer
Xiang HU ; Dayu TIAN ; Liang CAO
Chinese Journal of Digestive Surgery 2010;9(3):203-206
Objective To explore the characteristics of lymph node metastasis in gastric stump cancer and the efficacy of surgical treatment. Methods The clinical data of 42 patients with gastric stump cancer (test group) and 56 patients with primary cancer in the upper stomach (control group) who were admitted to The First Affiliated Hospital of Dalian Medical University from January 1994 to January 2008 were retrospectively analyzed. All data were analyzed by t test and chi-square test. The survival of the patients and lymph node metastasis rate were analyzed using the Kaplan-Meier method and Log-rank test, respectively. Results The metastasis rates of lymph nodes 1-3 of the test group and control group were similar (43%-61%), with no significant difference between the 2 groups (χ2 = 0.752, 0. 833, 0. 678, P > 0. 05). The metastasis rates of lymph nodes 7-9 of the test group and control group were 22% , 18% , 25% and 46% , 25% , 30% , respectively, and this was signifi-cantly different between the 2 groups (χ2 = 2. 168, 3. 263, 5. 761, P < 0. 05). The metastasis rates of lymph nodes 10-14 were 47% , 36% , 31% , 20% and 25% in the test group, which were significantly higher than 33% , 34% , 19% , 6% and zero in the control group, respectively (χ2 =3.225, 1.883, 3.945, 4.137, 6.823, P <0.05). The metastasis rate of lymph node no. 16 was zero in the test group and 23% in the control group. The metastasis rate of jejunal mesenteric lymph nodes was 27% in the test group and zero in the control group. The accumulative 5-year survival rate of patients was 38% in the test group and 48% in the control group, and this was significantly different (χ2 =4. 165, P<0.05). The overall 5-year survival rate of patients with radical resection was not significantly different between degree A (54%) and B (57%) (χ2 = 0. 622, P > 0. 05). Conclusions Gastric stump cancer has a unique pattern in lymph node metastasis. Surgical resection is effective in improving the prognosis of patients with gastric stump cancer.
10.Advances of VEGF related molecular promoting tumor angiogenesis and targeting therapy.
Chinese Journal of Pathology 2010;39(4):282-284
Angiogenesis Inducing Agents
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metabolism
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Angiogenesis Inhibitors
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therapeutic use
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Animals
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Antibodies, Monoclonal
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therapeutic use
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Antibodies, Monoclonal, Humanized
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Antineoplastic Agents
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therapeutic use
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Bevacizumab
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Drug Delivery Systems
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Endostatins
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therapeutic use
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Humans
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Neoplasms
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drug therapy
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Neovascularization, Pathologic
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drug therapy
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Receptors, Vascular Endothelial Growth Factor
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metabolism
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physiology
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Vascular Endothelial Growth Factors
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metabolism
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physiology