1.Effects of microRNA-294 on inflammatory factor of sepsis by targeting triggering receptor expressed on myeloid cells-1
Yijun LIU ; Dianqing CAO ; Guixi MO ; Liangqing ZHANG
Chinese Critical Care Medicine 2014;26(9):661-665
Objective To investigate the effects of microRNA-294 (miR-294) on tumor necrosis factor-α (TNF-α),interleukin-6 (IL-6) and high mobility group box 1 (HMGB 1) secretion in sepsis by targeting triggering receptor expressed on myeloid cell-1 (TREM-1).Methods miRNA-294 was predicted to regulate TREM-1 specially through bioinformatics analysis.Mice macrophage cell lines RAW264.7 were cultured in vitro,the cells were divided into non-inflammatory stage and inflammatory stage,and the cells in the two stages were subdivided into five groups as follows:normal control (NC),NC mimic transfection (NCm),NC inhibitor transfection (NCi),miR-294 mimic transfection (miR-294m) and miR-294 inhibitor transfection (miR-294i) groups.The ability of miR-294 was confirmed with dual-luciferase activity assay.At non-inflammatory stage,the cells were transfected with mimic or inhibitor of miR-294 or NC using TurboFectTM siRNA Transfection Reagent for 48 hours,mRNA expression of TREM-1 was detected by real-time reverse transcription-polymerase chain reaction (RT-PCR).At inflammatory stage,6 hours after stimulation by lipopolysaccharide (LPS,1 mg/L),the concentrations of TNF-α,IL-6 and HMGB1 were determined by enzyme linked immunosorbent assay (ELISA),the protein expression of TREM-1 was determined by Western Blot.Results ① Dual-luciferase activity assay demonstrated that TREM-1 was the target of miR-294.② In non-inflammatory stage,the expression of TREM-1 mRNA (2-ΔΔ~) in miR-294m group was significantly lower than that of the NC and NCm groups (0.673 ± 0.049 vs.1.000 ± 0.003,0.915 ± 0.039,t1=2.184,t2=5.421,both P<0.001),the expression of TREM-1 protein (gray scale) was (50.00 ± 1.19)% of NCm group (t=41.586,P<0.001).③ In inflammatory stage,the concentrations of TNF-α (ng/L) in miR-294m group was significantly lower than that of the NC group (1 547.18 ±47.18 vs.2 702.11 ± 327.20,t=4.212,P=0.010),the concentrations of IL-6 (ng/L) was significantly lower than that of the NC and NCm groups (505.28 ± 33.33 vs.837.66 ± 69.43,918.72 ± 119.39,t1 =4.382,P1=0.015; t2=5.451,P2=0.021),the level of TREM-1 protein (gray scale) was (51.33 ±0.88)% of NCm group (t=63.368,P<0.001).Conclusion miR-294 reduce TNF-α and IL-6 secretion in LPS-induced RAW264.7 through inhibiting the expression of TREM-1 specifically.
2.Comparison of gastrointestinal transit time and completion rates of two kinds of capsule endoscopy with different size and weight
Liangqing GAO ; Zelong HAN ; Zhenyu CHEN ; Senxiong HUANG ; Side LIU
China Journal of Endoscopy 2016;22(2):1-6
Objective To investigate whether there has any difference of gastric and small bowel transit time and completion rates between two capsule endoscopes with different size and weight. Methods Clinical data of patients who had undergone OMOM or MiroCam (smaller and lighter than OMOM) capsule endoscopy were retrospectively studied. Comparison of gastric and small bowel transit time and completion rates were made between the two kinds of capsule endoscopy. Results 1, 448 patients (628 in OMOM group and 820 in MiroCam group) were finally includ-ed. In patients with Crohn's disease or suspected Crohn's disease, gastric transit time of OMOM was significantly longer than that of MiroCam [(53.4 ± 52.6) minutes vs (41.1 ± 47.9) minutes, = 0.022]. In patients with gastroin-testinal bleeding, gastric transit time in OMOM was significantly shorter than that in MiroCam [(42.1 ± 44.8) minutes vs (62.0 ± 78.6) minutes, = 0.016). No significant difference in small bowel transit time or completion rate was found. Conclusions We conclude that the differences of gastric transit time, small bowel transit time and completion rates between the two kinds of capsule endoscopy with different size and weight are not significantly. Whereas, in patients with Crohn's disease or suspected Crohn's disease, gastric transit time of smaller and lighter capsule en-doscopy is shorter in patients with gastrointestinal bleeding, but longer of gastric transit time in smaller and lighter capsule endoscopy.
3.Bioequivalence of Metoprolol Tartrate Tablets in healthy volunteers
Jing WANG ; Liangqing FU ; Yongbiao GUAN ; Yi FANG ; Zeyuan LIU
Chinese Journal of Clinical Pharmacology and Therapeutics 2004;0(09):-
AIM: To study the bioequivalence of domestic and imported Metoprolol Tartrate Tablets in Chinese healthy volunteers.METHODS: According to the rule published by SFDA,the serum concentration of 20 selected volunteers among 18 to 40 years old was determined by HPLC-fluorescence detection after giving domestic and imported Metoprolol Tartrate Tablets 0.1g,and the pharmacokinetic parameters were calculated by DAS software.RESULTS: The method of HPLC-fluorescence detection to study the pharmakokinetics of Metoprolol Tartrate was sensitive,reliable,accurate and reasonable.The main pharmakokinetics parameters of domestic and imported Metoprolol Tartrate Tablets were T_(max):(1.11)?(0.36 h) and(1.39)?(0.65 h) respectively;C_(max):(269.20)?(87.15)(?g?L~(-1)) and(262.03)?(75.52)(?g?L~(-1)) respectively;AUC_(0-12h):(1088.91)?(510.52)(?g?L~(-1)?h) and(1098.29)?5(55.14)(?g?L~(-1)?h) respectively.The relative bioavailability of domestic Metoprolol Tartrate Tablets was(100.09)%.CONCLUSION: The domestic and imported Metoprolol Tartrate Tablets was bioequivalents.
4.Study on the Sedative Effect of Epidural Ropivacaine on Respiratory Function in Patient after Radical Resection of Breast Carcinoma
Xiaoli MA ; Liangqing ZHANG ; Yiming SHAO ; Xin LIU
China Pharmacy 1991;0(04):-
0.05)in visual analogue scales and blood-gas results,but the respiratory recovery function in ropivacaine group was markedly better than that in the bupivacaine group(P
6.Arthroscopic reconstruction of anterior cruciate ligament with hamstring tendon graft using bioabsorbatble rigidfix cross pins
Fei LIU ; Xuejin LI ; Chunhui FAN ; Hong REN ; Dawei Lü ; Wei WEI ; Yongchong JIANG ; Liangqing ZHANG
Clinical Medicine of China 2010;26(2):164-167
Objective To describe the surgical technique in reconstructing anterior cruciate ligament (ACL) with six strands harmstring tendon graft fixed by bioabsurbable rigidfix cross pins under arthroseopy and to e-valuate its efficacy. Methods From March 2005 to June 2008,39 patients with ACL injury were treated with ACL reconstruction by transplantation of six strands autogenous harmstring tendon , fixed by bioabsorbable rigidfix cross pins in femoral side. There are 22 male and 17 female,ages from 22 to 55 (the average age is 37). 19 cases were hurt in traffic accident, and another 20 cases in accidental injury. The state of illness is 7 days to 38 months. 13 cases merge the meniscus rupture, and 4 cases of meniscus suture,8 partial meniscectomy, 1 meniscectomy were performed simultaneously ;4 cases associating with the medial collateral ligaments Ⅲ degree injure underwent medial collateral ligament neo-plasty or reconstruction ;no cases merge posterior cruciate ligament injury, the patients were followed up 12 to 51 months , Pre-and post-operative knee joint function and stability were evaluated according to the Lysholm scoring scale system and the results of KT-2000 arthrometer , the clinical results and the reliability of the fixation were analyzed. Results 32 patients were followed-up and there is no limitation of the extention in the knee joints. The flexation of the knee joint is greater than 120°,and the anterior drawer test in 90° of flexation were negative in all patients. The postoperative Lachman test was strong positive in 1 case, negative in 26 cases and positive in 5 cases. The Lysholm scores was (92.6±4.2) points. The results of KT-2000 arthrometer: 31 cases 0-4.5 nun, average 3.2 mm;1 case 6. 5 mm. Conclusions It is a safe and reliable method to reconstruct ACL with six strands harmstring tendon graft fixing by bioabsorbable rigidfix cross pins under arthroscopy, and this procedure can obtain primary stabilization and long term stabilization of the autografts.
7.Quality grading of artificial tuber seed of Pinellia ternata.
Shuangfeng YE ; Mo WANG ; Liangqing LIU ; Huizhi ZHANG
China Journal of Chinese Materia Medica 2010;35(11):1382-1385
OBJECTIVETo establish the seed quality grading standard of artificial tuber of Pinellia ternata.
METHODHundred-grain weight, moisture content, germination rate, viability, single-grain diameter, purity and visual form of mature artificial tuber seed from tissue culture of P. ternate were determined. The key indicator and reference indicators for artificial tubers quality grading were defined statistically by SPSS analysis.
RESULTGermination rate and viability were the primary indicators, hundred-grain weight, moisture content and purity were important reference indicators.
CONCLUSIONThe quality of each grade should reach the following requirements: for first grade, hundred-grain weight > 10 g, moisture content > 70%-80% , germination rate > 80%, viability > 85%, single-grain diameter > 0.7 cm, purity > 80%; for second grade, hundred-grain weight 8-10 g, moisture content > 70%-80%, germination rate 60%-80%, viability 70%-85%, single-grain diameter 0.3-0.7 cm, purity 75%-80%; moisture content > 70%-80%, and the others don't reach second grade was the third grade.
Germination ; Pinellia ; chemistry ; physiology ; Plant Tubers ; chemistry ; physiology ; Quality Control ; Seeds ; chemistry ; physiology
8.Thevalueof3DGSPACEsequencetodisplayposterolateralcomplexinthekneejoint
Liangqing LIU ; Wei XING ; Jiangang ZHENG ; Jianxing XU ; Kaixiang WANG ; Li MEI ; Yongjian GU
Journal of Practical Radiology 2019;35(3):430-432,436
Objective Toinvestigatethediagnosticvalueof3DGSPACEsequencewith3Dreconstructiontechniqueinevaluationof posterolateralcomplexofthekneejoint.Methods 30kneejointsofhealthyvolunteersweresubjectedtoMRIconventionalsequences andSPACEsequencewith3Dreconstructiontechnique.AdoubleblindmethodwasusedtocompareMRIroutineand3DGSPACEsequence imagesontheposteriorlateralcomplexofthekneejoint.Theeffectoftwoscanningmethodsonthelateralcollateralligament,popliteal tendonandpoplitealligamentwasanalyzedbyrankandtest.Results Ithadstatisticaldifferencebetweentwogroupsindisplayof posterolateralcomplex(P<0.01).Thedisplayeffecton3DGSPACEsequenceforthelateralcollateralligament,poplitealtendonand poplitealligamentwasbetterthanthatontheconventionalMRIsequence.Conclusion 3DGSPACEsequencewith3Dreconstruction techniquecancompletelydisplaytheconfigurationanddirectionofposterolateralcomplex,whichcanimprovetherateofshowingligament obviously.
9.Comparison of clinical efficacy between robotic and laparoscopic low anterior resection for rectal cancer:a Meta analysis
Junye LIU ; Ping FU ; Huazhang HONG ; Xihong YUAN ; Jian LI ; Liangqing LIN ; Kai ZHOU
Chongqing Medicine 2017;46(29):4088-4092
Objective To compare the clinical efficacy of robotic low anterior resection (R-LAR) and laparoscopic low anterior resection(L-LAR) for rectal cancer.Methods The case-control studies for comparing the clinical efficacy of R-LAR and LLAR for rectal cancer were retrieved from databases,including PubMed,OVID,Springer,Wanfang and VIP,till June 2016.The studies were selected in accordance with inclusion and exclusion critera,and the data were extracted and evaluated by two researchers.The RevManS.3 software was used for Meta-analysis.Results A total of 7 studies including 1 126 patients with rectal cancer were included,592 cases in the R-LAR group and 534 cases in the L-LAR group.Compared with the L-LAR group,in the R-LAR group the operation time was longer (MD=33.84,95% CI:4.25-63.43,P =0.03),the conversion rate was lower (OR =0.10,95%CI:0.03-0.36,P=0.000 5),and more lymph nodes were dissected (MD=1.24,95%CI:0.31-2.17,P=0.009).No statistically significant difference was found in length of hospital stay,intraoperative blood loss,distance from distal margin to tumor and incidence rate of postoperative anastomotic leakage between the two groups (P > 0.05).Conclusion Compared with L-LAR,RLAR is characterized by longer operation time,lower conversion rate and more thoroughly removing lymph nodes.And the length of hospital stay,intraoperative blood loss,distance from distal margin to tumor and incidence rate of postoperative anastomotic leakage of R-LAR are similar to those of L-LAR.