1.Possibility of 3T3 fibroblast growth on blood fibrin clot in culture medium with recombinant human basic fibroblast growth factor
Yifei WANG ; Yun DAI ; Jieshen LIU ; Jian LIN ; Yunxia CUI
Chinese Journal of Pathophysiology 2000;16(2):97-101
AIM: To investigate the possibility of 3T3 fibroblast growth on blood fibrin clot in culture medium with recombinant human basic fibroblast growth factor (rhbFGF). METHOD: Growth of the cells on blood fibrin clot was studied by phase-contrast, scanning and transmission electron microscopy and by Giemsa stain and MTT assay. RESULTS: The optimal concentration of rhbFGF for proliferation and survival of the cells was 100 ng/mL. The cells also grew on blood fibrin clot scaffold in the low-serum medium containing 100 ng/mL rhbFGF, and a greater number of the cells survived after 48 hours incubation compared to that after 24 hours. The elongated filopodia appeared to bridge the gaps among the fibroblasts after 24 hours incubation. Further incubation to 72 hours, a greater number of platycytes were found to be joined together by lamellopodia. CONCLUSION: 3T3 fibroblasts could grow and survive on blood fibrin clot in the low-serum medium containing rhbFGF, and a combination of blood fibrin clot and rhbFGF may have over proportional effects on wound healing.
2.Possibility of 3T3 fibroblast growth on blood fibrin clot in culture medium with recombinant human basic fibroblast growth factor
Yifei WANG ; Yun DAI ; Jieshen LIU ; Jian LIN ; Yunxi CUI
Chinese Journal of Pathophysiology 1986;0(02):-
AIM: To investigate the possibility of 3T3 fibroblast growth on blood fibrin clot in culture medium with recombinant human basic fibroblast growth factor (rhbFGF). METHOD: Growth of the cells on blood fibrin clot was studied by phase-contrast, scanning and transmission electron microscopy and by Giemsa stain and MTT assay. RESULTS: The optimal concentration of rhbFGF for proliferation and survival of the cells was 100 ng/mL. The cells also grew on blood fibrin clot scaffold in the low-serum medium containing 100 ng/mL rhbFGF, and a greater number of the cells survived after 48 hours incubation compared to that after 24 hours. The elongated filopodia appeared to bridge the gaps among the fibroblasts after 24 hours incubation. Further incubation to 72 hours, a greater number of platycytes were found to be joined together by lamellopodia. CONCLUSION: 3T3 fibroblasts could grow and survive on blood fibrin clot in the low-serum medium containing rhbFGF, and a combination of blood fibrin clot and rhbFGF may have over proportional effects on wound healing.
3.Three dimensional tissue culture in culture medium with rhbFGF
Yifei WANG ; Yun DAI ; Jian LIN ; Zhiying LI ; Ji LU ; Meiying ZHANG ; Jiuxiang LI
Chinese Journal of Pathophysiology 1986;0(02):-
AIM: To investigate the behaviour of 3T3 fibroblast and macrophage co-culture on blood fibrin clot or adipose tissue with recombinant basic fibroblast growth factor (rhbFGF). METHODS: MTT method, inverted contrast microscopy, Giemsa staining as well as scanning electron microscope were used in the present study. RESULTS: The effect of rhbFGF on co-culture of 3T3 fibroblast and mouse macrophage on blood fibrin clot in low-serum DMEM with rhbFGF were monitored, and 3T3 fibroblast and macrophage growed well on the blood fibrin blot in low-serum DMEM with rhbFGF. CONCLUSION: The blood fibrin clot, with its low immunogenicity, could be used as a bionic support for three-dimensional tissue culture, and also a physiological carrier to distribute the growth factor rhbFGF for the cells.
4.Clinical and economic outcomes associated with Beers criteria of potentially inappropriate medication use: A systematic review
Jian-Ping ZHANG ; Dai-Yun ZHONG ; Li-Qing LU ; Jin YUAN ; Jian LI
The Chinese Journal of Clinical Pharmacology 2017;33(6):547-550
Objective To examine clinical and economic outcomes associated with Beers criteria (2003 and 2012 version) of potentiallyinappropriate medication(PIM) use.Methods A systematic literature search about impact of 2003 and 2012 Beers criteria published from 2003 to 2016 was carried out in following databases:PubMed,Cochrane library,CNKI and CBM.The studies were screened according to the pre-designed in clusion and exclusion criteria,and were assessed risk of bias using Newcastle-Ottawa scale (NOS).Data were extractedto performmeta-analysis and descriptive analysis.Results A total of 23 studies were included in our systematic review.All the study scores were more than 6 stars.The results of analysis suggested that,patients with PIM identified by Beers criteria had higher incidence of hospitalization [OR =1.47,95% CI (1.14,1.89),P<0.01],ADR[OR =1.74,95% CI(1.23,2.47),P <0.01],emergency department visit(ED visit) [OR =1.69,95% CI (1.21,2.37),P < 0.01] and cost compared with non-PIM patient,but there was no significantly different in mortality and health-related quality of life (HRQOL).Conclusion The application of Beers criteria can reduce hospitalization,ED visit and ADR.
5.Study on the health standard for phosphorus pentasulfide in the workshop air.
Chun-Mi LAI ; Shu-Bo LIU ; Shun TAO ; Jian-Yun DAI ; Yun GAO ; Wei-Jun LI ; Shu-Qiao CAO
Chinese Journal of Industrial Hygiene and Occupational Diseases 2004;22(4):310-311
Adult
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Air Pollutants, Occupational
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adverse effects
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Chemical Industry
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Female
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Humans
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Insecticides
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adverse effects
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Male
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Maximum Allowable Concentration
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Middle Aged
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Occupational Diseases
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chemically induced
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diagnosis
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Organothiophosphorus Compounds
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adverse effects
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Phosphorus Compounds
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adverse effects
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Sulfides
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adverse effects
6.Verification of accuracy of multileaf collimator leaf position using a two-dimensional ion chamber array
Zhong-Jian JU ; Yun-Lai WANG ; Lin MA ; Shou-Ping XU ; Xiang-Kun DAI ; Lian-Yuan WANG ;
Chinese Journal of Radiation Oncology 1992;0(04):-
Objective To design a new method to verify the position of multileaf collimator(MLC)leaf using a two-dimensional ion chamber array(2D-array).Methods 2D-array of PTW T10018 Seven29~(TM) was used to calibrate the accuracy of MLC leaf position of Elekta Precise accelerator.The edge function of the leaf position of MLC was measured and used as the reference value.The precision of MLC leaf was then evaluated through comparing the measured and reference values.Results The accuracy of MLC leaf position was found within?0.1 mm.Conclusion This method of verifying the accuracy of multileaf collimator leaf position is easy,simple and reliable
7.An overview of systematic reviews of bisphosphonates in the treatment of postmenopausal osteoporosis
Chu-Jun LUO ; Min-Juan LI ; Dai-Yun ZHONG ; Jian-Ping ZHANG
The Chinese Journal of Clinical Pharmacology 2016;32(6):557-559
Objective To evaluate the efficacy of bisphosphonate thera-pies regarding the treatment of vertebraland non vertebral-non hip frac-tures in postmenopausal women with osteoporosis.Methods We searched systematic reviews on the databases in Cochrane Library , PubMed, SCI, CNKI, VIP, CBM and Wangfang database, as well as hand searching.The reviews were identified with a systematic literature search.Then the data were extracted by standardized forms, and the methodological qualities of the reviews were assessed by the AMSTAR tool.The endpoints of interest were vertebral and non -vertebral frac-tures.The Meta-analysis was evaluated by RevMan 5.3 software.Re-sults of all reviews were analyzed byindirect comparison.Results A to-tal of 12 systematic reviews were included.There were six bisphopho-nates in these reviews ( including alendronate, ibandrinate, etidronate, risedronate, pamidronate, and zoledronic acid).All the reviews were in high quality.The results of Meta-analysis showed that there was statisti-cally significant by five bisphosphonates, expect for pamidronate.So there were five bisphosphonates ( alendronate, ibandrinate, etidronate, risedronate, and zoledronic acid ) analyzed with indirect comparion.In vertebral fractures of all bisphophonates compared, zoledronic acidshowed a relative risk ( RR ) of 0.49 relative to placebo, and RRs were 0.49, 0.53, 0.51, 0.74 relative to risedronate, ibandronate, alendronate, etidronate.Regarding non-vertebral fractures, RRs of zoledronic acid relative to placebo, risedronate, alendronate, ibandronate, etidronate were 0.72, 0.71, 0.87, 0.89, and 0.90, respectively.Risedronate showed the greatest reduction in any fractures, followed by zoledronic acid.Conclusion In summary, zoledronic acid has the best effectiveness on the treatment of osteoporosis among the five bisphosphonate.
8.Safety of incretin-based drugs for diabetes: an overview of systematic reviews
Jian-Ping ZHANG ; Dai-Yun ZHONG ; Li-Qing LU ; Yue-Qi XU ; Jian LI
The Chinese Journal of Clinical Pharmacology 2017;33(21):2187-2191
Objective To systematic review which studied the safety of dipeptidyl peptidase-4 (DPP-4) inhibitor and glucagon-like peptide -1 (GLP-1) receptor agonists for treatment of diabetes were searched from Cochrane Library,PubMed,CNKI,VIP,CBM and Wangfang database,and additional systematic reviews were searched by manual retrieval up to October 2016.Methodological qualities of the reviews were assessed by the a measurement tool for the assessment of multiple systematic reviews (AMSTAR) tool.The Meta-analysis was conducted by RevMan 5.3 software.Results A total of 46 systematic reviews were included in this overviews of systematic review.All the included studies were regarded as medium to high quality with more than 5 points by AMSTAR evaluation.When compared with placebo,DPP-4 inhibitors did not increase the risk of hypoglycemia,gastrointestinal,nasopharyngitis,headache,infection and cardiovascular adverse events,and slightly decreased body weight.Compared with other hypoglycemic agents,DPP-4 inhibitors had low incidence of hypoglycemia and cardiovascular adverse events.When compared with placebo,GLP-1 receptor agonists had a higher incidence of hypoglycemia and gastrointestinal adverse events,but did not increase the risk of nasopharyngitis,headache,cardiovascular adverse events and did not increase body weight.While compared with other hypoglycemic agents,GLP-1 receptor agonists had low incidence of hypoglycemia,high incidence of gastrointestinal reactions,and reducing body weight.Both DPP-4 inhibitors and GLP-1 receptor agonists did not increase the risk of pancreatitis.Conclusion DPP-4 inhibitors are safety,and GLP-1 receptor agonists increase hypoglycemia and gastrointestinal adverse events.
9.The mechanism of the increase of plasma bilirubin after hepatic ischemia-reperfusion in rats.
Qiu-yun YU ; Ming SHU ; Jing-hua DAI ; Jian-bo MA ; Yong YU ; Dong-hai LIU
Chinese Journal of Hepatology 2007;15(10):763-766
OBJECTIVETo investigate the mechanism of plasma bilirubin level increase after hepatic ischemia-reperfusion in rats.
METHODSRats were divided into a sham operation group (A group), a 20 min ischemia-reperfusion group (B group) and a 35 min ischemia-reperfusion group (C group). Study time points were 6 hours and 1, 3, and 5 days after the reperfusion. Pathological changes in the livers were studied with histological slides stained with hematoxilin and eosin. Routine biochemistry methods were used to detect the bilirubin level of blood plasma and the bile drained from the ischemic hepatic lobes. RT-PCR was used to analyze the expression of the multidrug resistance-associated protein 2 (MRP2) and mRNA. Immunohistochemistry was used to analyze the localization of MRP2 in the canalicular membrane.
RESULTSB and C groups showed a mild inflammatory reaction without hepatocyte necrosis. At 6 h and 1 day after reperfusion, there was a significant increase of the plasma bilirubin level and a decrease of the bilirubin level of the drained bile in B group. These changes lasted to the day 3 and day 5 in C group. MRP2 mRNA down-regulation was found at 6 h only in the B and C groups. No localization of MRP2 in the canalicular membrane was found but it appeared in "esicules" under the canalicular membrane in C group.
CONCLUSIONSAbsence of MRP2 localization in the canalicular membrane could be the cause of the blood plasma bilirubin level increase after liver ischemia-reperfusion.
Animals ; Bilirubin ; blood ; Liver Diseases ; blood ; Male ; Multidrug Resistance-Associated Proteins ; metabolism ; Rats ; Rats, Sprague-Dawley ; Reperfusion Injury ; blood
10.Protective effect of Sanhuangyinchi Fang drug serum on hydrogen peroxide-induced DNA oxidative damage in LO2 cells.
Huan DAI ; Jian-Xin DIAO ; Jin-Ying OU ; Hai-Ye LI ; Yun-Gao YANG
Journal of Southern Medical University 2015;35(10):1434-1439
OBJECTIVETo study the protective effect of Sanhuangyinchi Fang drug serum (SF) against hydrogen peroxide-mediated DNA oxidative damage in LO2 cells.
METHODSThe LO2 cells were randomly divided into the control group, H(2)O(2) group, SF groups (5%, 10%, and 15%) and vitE group. The morphological features of the treated LO2 cells were observed under inverted microscope. The viability of the treated cells was assessed with CCK-8 method, and the activity of SOD, CAT and GSH-PX were detected biochemically. Reactive oxygen species (ROS) levels, the content of 8-OHdG, and DNA damage of the cells were evaluated by flow cytometry, ELISA, and Comet assay, respectively.
RESULTSCompared with H(2)O(2) group, the cells in SF groups (10% and 15%) and vitE group showed higher cell survival rate (P<0.05) and higher SOD, CAT, GSH-PX (P<0.05) and ROS scavenging activities (P<0.01) with markedly decreases the content of 8-OHdG (P<0.01) and reduced tailing ratio, tail length, tail moment and Olive tail moment (P<0.05).
CONCLUSIONSF drug serum, especially at the concentration of 15%, can protect LO2 cells from H(2)O(2)-mediated DNA oxidative damage.
Cell Line ; Comet Assay ; DNA Damage ; Deoxyguanosine ; analogs & derivatives ; Drugs, Chinese Herbal ; pharmacology ; Humans ; Hydrogen Peroxide ; toxicity ; Oxidation-Reduction ; Oxidative Stress ; Protective Agents ; pharmacology ; Reactive Oxygen Species