1.The value of emergency sonography in the diagnosis of patients with abdominal trauma
Jian LIU ; Zhenchai LI ; Lingdi DU
Medical Journal of Chinese People's Liberation Army 2001;0(12):-
Objective To assess the value of emergency ultrasound in the diagnosis of patients with abdominal trauma. Methods Retrospective study was performed on 245 patients with abdominal trauma. All patients were examined with emergency ultrasound, and their sonographic findings were compared with their CT and operative findings. Results 1) Abnormal signs suggestive of injury were detected in 346 organs among 245 patients, and correct diagnosis was made in 299 cases, while misdiagnosis occurred in 47. The overall accuracy of sonographic diagnosis was 86.4%. 2) The accuracy rate of sonographic diagnosis of various organs: for splecn, liver, kidney, mesentery, bladder, retroperitoneal injuries were 93.4%, 91.9%, 80.9% and 51.3% respectively. 3) The accuracy of sonography on the free fluid and retroperitoneal fluid were 100% (213/213) and 89.5% (51/57) respectively. Conclusion Emergency sonography to evaluate patients for injury caused by abdominal trauma is highly accurate.
2.Intermediary effect of depression between the Housebound and cognition in community elderly
Lingdi MENG ; Xiao FENG ; Kun LIU
Chinese Journal of Behavioral Medicine and Brain Science 2017;26(7):647-650
Objective To investigate the intermediary effect of depression between housebound and cognition in community-dwelling older adults and to provide intervention for the improvement of the life quality.Methods A total of 720 senior adults were selected to fill out demographic questionnaire,including Rasch-Derived Center for Epidemiological Studies Depression Scale (CES-D-R),housebound scale and the minimental state examination (MMES).Results The depression score of the elderly in community was (3.95±4.12),housebound score was (4.26±1.23),cognition score was (21.52±4.04) and the incidence rate of the cognitive disorder was 37.1%.Cognition was significantly negatively related to housebound and depression (r=-0.409,P<0.01;r=-0.485,P<0.01).Housebound was significantly positively related to depression (r=0.555,P<0.01).The community elderly age,sex,marital status,degree of education,self-assessment of health,living space,depression and the housebound could be used to predict the cognitive function,and all of them could explain the variance of cognitive function of 50.8%(P<0.05).Housebound had a direct effect of-0.02 on cognitive function(P>0.05).The indirect effect of housebound on cognitive function through depressive mood was-0.45(P<0.05).Conclusions The elderly housebound has an intermediary effect on the cognitive function through the depression.
3.Effects of different kinds of opiate receptor on oxycodone-induced hyperlococomotor and analgesia in mice
Yanli LIU ; Lingdi YAN ; Chunfu WU ; Zehui GONG
Chinese Pharmacological Bulletin 2003;0(11):-
Aim To investage the effects of ?、?、?-receptor on hyperlocomotor and analgesia in mice.Methods Locomotor activity experiment and hot-plate pain experiment were measured.Results Oxycodone dose-dependently enhanced locomotor response in mice.Naloxone,a unselective opioid receptor antagonists and naltrindole(?-selective opioid receptor antagonist)could attenuate the increase of locomotor acitivity induced by oxycodone,but naloxonazine,a ?-receptor antagonist had no such effect.?-receptor antagonist nor-Binltorphimine increased hyperlocomotion induced by oxycodone.In antinociceptive experiment,naloxonazine and naltrindole could not attenuate the that of oxycodone,but nor-Binaltorphimine could attenuate the antinociceptive effects of oxycodone.Conclusion Oxycodone-hyperlocomotor is probably mediated by ? opioid receptor,and antinocieptive effects of oxycodone is probably mediated by ? opioid receptor.
4.Pharmacokinetics of a naltrexone sustained release preparation in dog
Lingdi YAN ; Zehui GONG ; Yongshao LIU ; Boyi QIN
Chinese Journal of Pharmacology and Toxicology 2003;17(3):167-171
AIM To evaluate bioavailability, biocompa- tibility and biodegradability of an injectable microsphere sustained release preparation of naltrexone(NTX) in 4 dogs. METHODS Pharmacokinetic data of NTX and remained NTX in microspheres in injection site were studied using high performance liquid chromatography(HPLC)-electrochemical detection with naloxone(NLX) as internal standard. Biocompatibility of the microspheres was assayed by histological examination. RESULTSPharmacokinetics of NTX after an intramuscular dose of 0.5 or 1.0 mg*kg-1 NTX indicated a plasma clearance range of 0.66 to 0.73 L*min-1 and a t1/2β range of 60.0 to 67.2 min. After a 1-week washout period without medication, NTX microspheres injection period about 4 weeks followed. After injection of 1.0 g of microspheres containing (296.5±2.1)mg of NTX, mean blood concentrations of NTX exceeded 1 μg*L-1 for 26-28 d, and cmax per dose (mg*kg-1) was only 1% of that after NTX dosing. It was estimated that approximately (93.0±4.1)% of the administered dose was absorbed after microspheres injection in 4 dogs. There were no serious adverse effects other than light tissue irritation. CONCLUSIONThis NTX microspheres preparation provides a safe, complete and sustained release of the drug for about one month.
5.Effect of novel agonist of soluble guanylate cyclase sGC 003 on endothelin-1-induced cardiomyocyte hypertrophy
Ke LIU ; Lingdi YAN ; Zheng YONG ; Zehui GONG ; Ruibin SU
Chinese Journal of Pharmacology and Toxicology 2016;30(4):338-343
OBJECTIVE To investigate the protective effect of sGC003,a novel agonist of soluble guanylate cyclase,on endothelin-1(ET-1)-induced cardiomyocyte hypertrophy. METHODS Cardiomy?ocytes were isolated from neonatal Sprague-Dawley rats using serial enzymatic digestion and then incubated with ET-1 10 nmol·L-1 in the absence or presence of sGC003 0.01,0.1 and 1.0μmol·L-1. Hyper?trophic responses including the cardiomyocyte area(Image-Pro Plus 6.0),the expression of atrial natri?uretic peptide gene(ANP)mRNA(RT-PCR method)and total protein content(BCA method)were detect?ed. RESULTS After 48 h stimulation with ET-1 10 nmol·L-1,the cardiomyocyte area increased by 80%(P<0.01),the total protein content increased by 120%(P<0.01) and the expression of ANP mRNA up-regulated by 140%(P<0.01). sGC003 0.01,0.1 and 1.0μmol · L-1 elicited antihypertrophic actions, including inhibition of ET-1-mediated increase in the cardiomyocyte area(P<0.01),raised total protein content(P<0.05)and upregulation of ANP mRNA(P<0.05). CONCLUSION sGC003 has protective,car?diomyocyte-selective antihypertrophic effects in vitro.
6.Clinical effect ofJiedu-Huayu granule for the degnue fever
Luping LIN ; Lingdi LIU ; Jiao LIU ; Lingzhai ZHAO ; Fuchun ZHANG ; Xinghua TAN
International Journal of Traditional Chinese Medicine 2017;39(5):402-407
Objective To observe the clinical effect ofJiedu-Huayu granule for the Dengue Fever (DF).Methods The patients with DF were randomly divided into the treatment group and control group. Both groups received the conventional treatment, and the treatment group addedJiedu-Huayu granule. The clinical effects were detected.Results At the baseline, the ALT and AST in the treatment were significantly higher than those in the control group (t=2.830,P=0.014;t=2.109,P=0.044). But after treatment, there was no difference between groups. The ALT in the treatment group showed a gradual change and AST recovery time showed short. Compared with control group, the concentration of sVCAM-1 in the treatment group was higher at baseline and the third day (t=2.780,P=0.018;t=2.130,P=0.460), but the concentration of MCP-1 desceased significantly on the 6th day (t=-2.164,P=0.042).Conclusions Compared with the western medicine, the treatment of western medicine andJiedu-Huayu granule could alleviate liver injure, shorten the recovery time, and reduce the concentration of sVCAM-1 and MCP-1.
7.Effects of N-acetylcysteine on expression of transforming growth factor-β1 in diabetic nephropathy rats
Tongqiang LIU ; Juanjuan LI ; Xi FENG ; Lingdi MA ; Jinghua TANG ; Sufei GONG ; Ping GAO
Chinese Journal of Geriatrics 2011;30(4):332-336
Objective To investigate the effects of N-acetylcysteine (NAC) on the expression of transforming growth factor-β1 (TGF-β1) in renal cortex of diabetic nephropathy rats.Methods A rat model of DN was established.The rats were randomly divided into control group,DN group and NAC group.After 8 weeks treatment,urinary albumin excretion rate (UAER) was determined.The expression of TGF-β1 in renal cortex was detected by immunohistochemistry and RT-PCR analysis.Pathomorphological changes of renal cortex were observed.Results (1)The levels of UA ER were significantly higher in DN group and NAC group [(1268.3±297.5) μg/24 h and (315.9-±86.8) μg/24 h] than in control group [(31.2±8.9) μg/24 h,q-29.85,16.76,both P<0.01].The groups of DN and NAC versus group of control showed the increased levels of activity of TGF-β1 in renal cortex [immune-histochemistry index of glomerular mesangial area:7.35±1.17 and 3.87 ± 0.71 vs.1.95±0.34,q= 10.75,5.82,both P<0.01];immune-histochemistry index of renal tubulointerstitium [21.21± 3.78 and 10.67±1.86 vs.3.62±0.79,q=15.20,11.36,both P<0.01];the expression of mRNA in renal cortex[0.72±0.06 and 0.45±0.05 vs.0.23±0.04,q=9.13,7.45,both P<0.01].The pathomorphological changes were significant in DN group and NAC group.(2)The NAC group versus DN group showed a decreased levels of UAER (q=8.17,P<0.01),activity of TGF-β1 in renal cortex [immune-histochemistry index of glomerular mesangial area:q= 4.97,P<0.01]immune-histochemistry index of renal tubulointerstitium (q = 6.86,P < 0.01 );the expression of mRNA in renal cortex (q= 3.69,P<0.05) and showed improvement of pathomorphology in renal cortex.(3) There was a significantly positive correlation between expression quantity of TGF-β1 mRNA in renal cortex and UAER level in NAC group(r= 0.749,P<0.05).Conclusions The protective effects of NAC on the kidney of DN rats may be partly related with inhibition on the expression of TGF-β1.
8.Effects of matrine on structure and function of K562 cells
Yan ZHANG ; Xiaoshan LIU ; Yujuan HE ; Lingdi MA ; Xiangru XU ; Jikai JIANG
Chinese Journal of Tissue Engineering Research 2003;7(20):2788-2789
Aim To investigate the effect of matrine on cytoskeletonof K562 cells. Methods Micropipette aspiration technique was adoptedto investigate the viscoelasticity of K562 cells, while the different ex-pression of cytoskeletal protein gene was analyzed by DNA microar-ray. Results In matrine-treated K562 cells, the viscoelastic propertiesKI, K2 and were decreased significantly from 726 ± 215 to 432 ±67,433 ±119 to 242±31, 72±38 to 50±15 respectively, and the geneexpression of prefoldin and ezrin was much stronger than that of controlcells. Conclusion The strueture and function can be changed in ma-trine-treated K562 cells.
9.Clinical research on COX-2 ,NF-κB and VEGF expression in triple negative breast cancer
Lingdi MA ; Yanfen DONG ; Qian LIU ; Jing FAN ; Lijia JIANG ; Yahong CHEN
International Journal of Laboratory Medicine 2016;37(4):436-437,440
Objective To study the cyclooxygenase (COX-2) ,nuclear factor-κB (NF-κB) and vascular endothelial growth factor (VEGF) expression and clinical significance in triple negative breast cancer .Methods From January 2010 to December 2014 ,breast cancer treatment in our hospital 100 patients for the study ,50 patients with triple negative breast cancer ,50 cases of non-triple neg-ative breast cancer was detected by immunohistochemistry ,100 cases of breast cancer were detected by immunohistochemistry in or-ganizations COX-2 ,NF-κB and VEGF expression of lymphatic vessel invasion and lymph vessel density and D2-40 mark detection , statistical analysis of relevant clinical and pathological information .Results COX-2 in triple negative and non-triple negative breast cancer were 76% ,70% ,the difference was not statistically significant (P>0 .05) ,VEGF triple negative breast cancer and non-triple negative breast lesions in cancerous lesions positive expression rates of 60% and 36% ,respectively ,which had significant difference (P<0 .05) .NF-κB in triple negative breast cancer lesions and non-triple negative breast lesions positive expression rate was 66%and 32% ,respectively ,which had significant difference (P< 0 .05) .Triple negative breast cancer NF-κB and VEGF ,COX-2 and VEGF expression was significantly positively related to breast cancer .Conclusion Radiation and chemotherapy is a major means of triple negative breast cancer postoperative treatment ,while inhibiting the NF-κB ,the expression of VEGF and COX-2 is expected to become the new target for treatment of triple negative breast cancer ,is worth exploring .
10.Reliability and validity of Chinese version of the confidence after stroke measure questionnaire
Na HU ; Lingdi MENG ; Kun LIU
Chinese Journal of Behavioral Medicine and Brain Science 2018;27(3):277-280
Objective To examine the reliability and validity of the Chinese version of the confidence after stroke measure(CaSM).Methods The reliability and validity of the Chinese version of CaSM were tested among 280 stroke patients in Jinzhou city.All the data were analyzed by SPSS20.0 and AMOS17.0.Results The Cronbach's α of the overall scale was 0.974,and that of subscales were 0.941,0.954,0.908,the Guttman split-half coefficient was 0.960,the retest reliability was 0.891.All the entries-total scores were significantly positive related (r=0.542-0.901,P<0.05),I-CVI were 0.830-1.000,S-CVI/UA was 0.815 and S-CVI/Ave was 0.969.Three-factors (self-confidence,positive attitude,social confidence) models were got by using exploratory factor analysis and the communalities of the items were 0.468-0.828.KMO was 0.938,explaining 70.731% variance.Confirmatory factors analysis showed that the fit indices were x2/df=2.5918,RMSEA =0.077,GFI =0.930,AGFI =0.902,TLI =0.927,IFI =0.943,NFI =0.911,CFI =0.943,standardized regression coefficient were 0.48-0.90.The criterion-related validity between CaSM and SSEQ was positively related (r=0.781,P<0.01).Conclusions The Chinese version of the CaSM is a reliable and valid instrument which can be used to measure the level of confidence after stroke in China.