1.Effect of hyperbric oxygen on infarct volume and matrix metalloproteinase after permanent focal cerebral ischemia in adult rats
Chinese Journal of Rehabilitation Theory and Practice 2004;10(12):726-728
ObjectiveTo investigate the effect of hyperbric oxygen (HBO) on infarct volume and relevant mechanism after permanent focal cerebral ischemia in adult rats.MethodsRat model of focal cerebral ischemia induced by intraluminal filament occlusion of middle cerebral artery (MCA) was used. HBO(2.0 ATA) was applied to HBO group. Infarct volume, matrix metalloproteinase 2 (MMP-2) and MMP-9 were detected at 6h, 24h, 48h, 72h,120h and 10d after ischemia.ResultsThe infarct volume obviously decreased at 120h and 10d and expression of MMP-9 lowered at 48—120h in HBO groups. There was no significant change in MMP-2.Conclusion HBO can reduce infarct volume after cerebral ischemia, which may be related to downregulation of MMP-9 levels.
2.THE VALUE OF PYRIDOSTIGMINE IN EVALUATION OF GH RESERVE IN CHILDREN AND ADOLESCENTS
Xiao-Dong WANG ; Chang-Yu PAN ;
Chinese Journal of Endocrinology and Metabolism 1986;0(04):-
In the present study, we observed the effects of cholinergic enhancement by pyridostigmine (PD), a cholinesterases inhibitor, on GH release in both normal (n = 13) and GH deficient children and adolescents (n = 8). Responses of GH to insulin hypoglycemia were also observed. In the normal subjects, PD-induced serum GH peak levels were significantly higher than that induced by insulin (P
3.Effect of Batroxobin on focal cerebral ischemia and reperfusion injury in streptozotocin-induced diabetic rats
Yu PAN ; Lin CONG ; Chao-dong ZHANG
Chinese Journal of Rehabilitation Theory and Practice 2004;10(9):526-528
ObjectiveTo observe the effect of Batroxobin and Urokinase on brain of diabetic rats following focal cerebral ischemia and reperfusion injury. To investigate the preventive mechanism of Batroxobin following focal cerebral ischemia and reperfusion injury in diabetic rats after thrombolysis therapy.MethodsDiabetic rat was induced by administrating streptozotocin intraperitoneally. Rat model of focal cerebral ischemia and reperfusion injury induced by intraluminal filament occlusion of middle cerebral artery(MCA) that removed 2h later was used. Batroxobin and Urokinase were administrated intravenously in different groups. Infarct volume,cerebral hemorrhage and matrix metalloproteinase (MMP)-2,MMP-9 were detected at 2h,24h,48h after ischemia and reperfusion injury.ResultsThe significant decrease of infarct volume were observed in Batroxobin and Urokinase groups. There were 5 rats observed cerebral hemorrhage in Urokinase group and no cerebral hemorrhage in Batroxobin group. The number of MMP-2 and MMP-9 positive cells in Batroxobin and Batroxobin Urokinase groups decreased compared with saline and Urokinase groups. ConclusionBatroxobin can decrease the infarct volume significantly without the complication of cerebral hemorrhage after ischemia and reperfusion injury in diabetic rats, which maybe relate to down regulation of the expression of MMP-2 and MMP-9.
5.Drug resistance and nosocomial infection analysis of 1521 strains MDR
Xiaobo TIAN ; Shujuan PAN ; Gui ZHANG ; Yu LIU ; Baokun DONG
Journal of Chinese Physician 2017;19(3):403-406
Objective To investigate the situation of drug resistance and nosocomial infection of multi-drug resistant bacteria (MDR),guidance for clinical rational use of antibiotics.Methods A total of 1521 strains of MDR was isolated from January 2015 to December in Beijing Tongren Hospital,using matrixassisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) identification of bacteria,VITEK-2 Compact and Kirby Bauer (KB) method for drug sensitivity test.Results In 1 521 strains of MDR,Acinetobacter Baumanii were 589 strains (38.7%),nosocomial infection rate were 16.6%;350 strains of Escherichia coli (23.0%),nosocomial infection rate were 9.0%;249 strains of Staphylococcus aureus (16.4%),nosocomial infection rate were 2.7%;171 strains of Klebsiella pneumoniae (11.2%),nosocomial infection rate were 14.3%;150 strains of pseudomonas aeruginosa (9.9%),nosocomial infection rate were 64.7%;12 strains of Enterococcus faecium (0.8%),nosocomial infection rate were 16.7%.MDR Acinetobacter Baumanii,MDR Pseudomonas aeruginosa,extended-spectrumβ-lactamase (ESBL) + Escherichia coli and ESBL + Klebsiella pneumoniae resistance rate to Imipenem were 100%,91.5%,0.6% and 55.6%.Conclusions MDR pseudomonas aeruginosa (MDR-PAE),MDR acinetobacter baumanii (MDR-AB) and ESBL + Klebsiella pneumoniae were highly resistant,and the nosocomial infection rate were higher.
6.Enhanced recovery after surgery in perio perativem anagement of hepatectomy:a Meta-analysis Chen
Dong ZHANG ; Fei PAN ; Liang YU ; Qiang HE ; Ren LANG
Chinese Journal of Hepatobiliary Surgery 2016;22(6):361-366
Objective To conduct a systematic review on the safety and efficacy of enhanced recov -ery after surgery ( ERAS) in perioperative management of hepatectomy .Methods A literature search was conducted on databases which included the PubMed , Embase, Cochrane Library, Sinomed, Wangfang, VIP and CNKI for randomized controlled trials ( RCTs) on application of ERAS in patients after hepatectomy . The data collection ended in August 2015.A meta-analysis was performed using RevMan 5.3 software.Re-sults Eleven RCTs which included 1074 patients were selected into this study .There were 530 patients in the ERAS group and 544 patients in the control group .On Meta-analysis, when compared with the control group, the ERAS group had significantly shorter length of hospital day (WMD=-2.36, 95%CI: -3.19~-1.54 , P<0.05 ) , shorter time for functional recovery ( WMD=-2.30 , 95%CI: -3.77 ~-0.83 , P<0.05), lower total complication rate (RR=0.65, 95%CI:0.52~0.80, P<0.05), and significantly decreased rates of postoperative pulmonary infection (RR=0.36, 95%CI:0.14~0.91, P<0.05) and nausea and vomiting (RR=0.48, 95%CI:0.26~0.89, P<0.05).There were no significant differences between the two groups on the rates of postoperative bleeding , biliary fistula, abdominal infection, delayed incisional healing, wound infection and urinary tract infection (P>0.05).The ERAS group had significant-ly lower hospitalization cost (SMD=-1.61, 95%CI:-2.42~-0.80, P<0.05), but the differences between the two groups on mortality and re-admission rates were not significant (P>0.05).When compared with the control group , the drainage tube removal time ( WMD=-2.83 , 95% CI:-3.92~-1.76 , P<0.05), time to first mobilization (SMD=-2.34, 95%CI:-2.98~-1.70, P<0.05), time to first feeding ( SMD=-5.08 , 95%CI: -9.33~-0.83 , P<0.05) , time to passage of first flatus ( SMD=-3.60, 95%CI:-4.85~-2.34, P<0.05) in the ERAS group were significantly shorter , but there was no significant difference on the time to the first bowel motion ( P>0.05 ) .Conclusions ERAS in the peri-operative management of hepatectomy was safe and beneficial .
7.Everolimus after liver transplantation: a Meta-analysis
Liang YU ; Dong ZHANG ; Fei PAN ; Qiang HE ; Ren LANG
Chinese Journal of Hepatobiliary Surgery 2016;22(7):454-459
Objective To compare everolimus (EVR) with calcineurin inhibitor (CNI) minimization or withdrawal on renal function of liver transplant patients with standard CNI therapy.Methods A search was conducted on databases which included the PubMed,Embase and Cochrane library for randomized controlled trials (RCTs) comparing EVR with CNI with minimization or withdrawal (the EVR group) with standard CNI therapy (the standard CNIs group) on renal function of liver transplant patients.A metaanalysis was performed using RevMan 5.3 software.Results Five RCTs which included 1 264 patients were selected into this study.There were 790 patients in the EVR group and 474 patients in the standard CNIs group.On meta-analysis,the EVR group had significantly better renal function (SMD =0.36,95% CI 0.09 ~ 0.64,P < 0.05),but higher rates of infection (RR =1.37,95% CI 1.08 ~ 1.74,P < 0.05),dyslipidemia (RR =2.46,95% CI 1.79 ~ 3.38) and leukopenia (RR =2.37,95% CI 1.32 ~ 4.26).No significant differences were found on the mortality and the acute rejection rates between the two groups (all P < 0.05).Conclusions EVR with CNI minimization or withdrawal after liver transplantation provided effective immunosuppression and improved patients' renal function.The treatment increased the rates of infection,dyslipidemia and leukopenia.
8.Correlation analysis of serum cardiac troponin Ⅰ and clinical efficacy observation of Wushen decoction for treatment of patients with sepsis heart failure
Xucheng LI ; Dong ZHANG ; Jun ZHANG ; Can YU ; Yu GAO ; Shujing YU ; Quanli PAN ; Liping YU
Chinese Journal of Integrated Traditional and Western Medicine in Intensive and Critical Care 2017;24(1):10-13
Objective To investigate the effect of Wushen decoction on levels of serum cardiac troponin Ⅰ (cTnI),cardiac muscle enzyme and clinical parameters in patients with sepsis heart failure,and to analyze the correlations between cTnI and myocardial enzyme level and clinical parameters.Methods Forty-two patients diagnosed as sepsis admitted to Wuhan Hospital of Traditional Chinese Medicine from March 2014 to March 2016 were enrolled,and they were divided into a Wushen decoction treatment group and a control group by principle of single blind complete randomized method,21 cases in each group.The patients in control gToup were treated by conventional western medicine,while the patients in Wushen decoction treatment group,on the basis of conventional western medicine,they were treated additionally by Wushen decoction (composed of ginseng,radix sophorae flavescentis,radix glehniae,radix adenophorae,salvia,astragalus,notoginseng radix,rosewood,etc.),one dose a day,the therapeutic course in both groups being 7 days.The changes of biochemical indicators [cTnI,creatine kinase (CK),CK isoenzyme (CK-MB)],haemodynamics parameters [cardiac index (CI),central venous pressure (CVP),extravascular lung water index (ELWI),global ejection fraction (GEF),mean arterial pressure (MAP),heart rate (HR)],treatment condition and prognostic parameters [vasoactive drug dosage index,acute physiology and chronic health evaluation Ⅱ (APACHE Ⅱ) score,duration of mechanical ventilation,the length of stay in intensive care unit (ICU) and total hospitalization time] were compared before and after treatment for 7 days in the two groups.The correlations between the level of cTnI on admission before treatment and CK,CK-MB,APACHE Ⅱ,vasoactive drug dosage index,duration of mechanical ventilation,the length of stay in ICU and total hospitalization time were analyzed.Results The levels of cTnI,CK,CK-MB,CVP,ELWI,HR,vasoactive drug dosage index,APACHE Ⅱ score in two groups after treatment were obviously lower than those before treatment,the levels of CI,GEF,MAP were markedly higher than those before treatment,the duration of mechanical ventilation,the length of stay in ICU and total hospitalization time were significantly shorter than those before treatment,and the changes of above indexes were more remarkable in Wushen decoction group than those in control group [cTnI (mg/L):0.94-± 0.29 vs.1.30 ± 0.67,CK (U/L):96.00 ± 24.30 vs.101.38 ± 24.55,CK-MB (U/L):31.14 ± 6.78 vs.36.48 ± 8.17,CI (mL· s-1 · m-2):64.51 ± 5.83 vs.53.34 ± 4.67,CVP (cmH2O,1 cmH2O =0.098 kPa):10.56 ± 1.84 vs.11.94--2.16,ELWI (mL/kg):8.81±1.61 vs.11.66±2.30,GEF:(33.62±3.88)% vs.(27.14±4.55)%,MAP (mmHg,1 mmHg =0.133 kPa):84.67 ± 5.58 vs.79.52 ± 5.74,HR (bpm):87.86 ± 9.02 vs.82.95 ± 5.26,vasoactive drug dosage index:2.44 ± 0.53 vs.2.89 ± 0.68,APACHE Ⅱ score:10.66 ± 1.66 vs.14.43 ± 1.82,duration of mechanical ventilation (days):1.67 ± 2.11 vs.2.10 ± 2.26,the length of stay in ICU (days):8.86 ± 2.59 vs.10.67 ± 2.96,total hospitalization time (days):13.24 ± 4.53vs.16.76 ± 5.04,all P < 0.05].On admission before treatment,the correlations between the level of cTnI and CK,APACHE Ⅱ score,vasoactive drug dosage index,duration of mechanical ventilation and the length of stay in ICU were all positive (r =0.322,0.335,0.327,0.328,0.338,P =0.038,0.030,0.030,0.034,0.029).Conclusions The elevation of cTnI level may reflect the degree of myocardial damage in patients with sepsis cardiac failure,and it can be used as an indicator to predict the prognosis of the disease;the changes of many biochemical and clinical indexes suggest that the addition of Wushen decoction might elevate the clinical efficacy for treatment of patients with sepsis heart failure.
9.Paradoxical devation of senna adiponectin and its relationship with the level of serum leptin in preeclampsia
Yong-Miao PAN ; Han-Zhi WANG ; Dong-Hong LU ; Min-Yue DONG ; Yu-Zhong WU ;
Chinese Journal of Emergency Medicine 2006;0(11):-
Objective To investiagte the serum adiponectin concentration in preeclampsia and its relationship with serum leptin and soluble leptin receptor levels.Method The level of adiponectin,leptin and soluble leptin receptor in serum were measured by enzyme-linked immunosorbent assay(ELISA)in 38 patients with preeclampsia and 42 patients as control.The relationship of free leptin index(leptin/soluble leptin receptor) to preeclampsia was analyzed.Results There were no significant differences in maternal age,gestational age and body mass index(BMI)between two groups.But the gestational age and birth weight were significantly lower in preeclampsia than in control.The patients with preeclampsia had significantly higher levels of serum adiponectin, leptin and free leptin index(1691.7?g/ml,37.5 ng/ml and 0.95 respectively)than the control(689.4?g/ml, 19.3 ag/ml and 0.49,respectively).But there was no significant difference in serum level of soluble leptin receptor between the groups(35.0 ng/ml vs 42.2 ng/ml).Serum adiponectin was not significantly correlated with the level of leptin,soluble leptin receptor and free leptin index.Area of serum adiponectin,leptin and free leptin index in preeclampsia under the ROC curve were less than 0.5.Conclusions The patients with preeclampsia have paradoxical higher serum levels of adiponecfin and more bioavailability of leptin,suggesting these may be important factom of this complication.
10.Effect of Estrogen Replacement on Vascular Responsiveness in Ovariectomized Spontaneously Hypertensive Rat.
Bonggwan SEO ; Dong Ju CHOI ; Jin Yong HWANG ; Il Seok CHEON ; Yu Pan LEE
Korean Circulation Journal 2000;30(4):528-528
BACKGROUND: Although postmenopausal estrogen replacement therapy is known to reduce cardiovascular mortality, the mechanism is not clear yet. Furthermore, the effect of estrogen on vascular tonus is reportedly variable according to the animal models, vascular beds and agonists used. MATERIALS AND METHOD: Bilateral ovariectomies were performed in 12 week-old, 18 spontaneously hypertensive rats (SHR) and 18 normotensive Wistar-Kyoto rats (WKY). Rats were divided into three groups according to the dose of 17beta-estradiol (E 2 ) pellets implanted subcutaneously two weeks after ovariectomy: control (no implantation), low-dose (0.5 mg) and high-dose (5 mg) E 2 replacement group. Two weeks after pellet implantation, organ bath experiments were performed using descending thoracic aortae. For endothelium-dependent relaxation, acetylcholine (10(-9) -3x10(-6) M) was cumulatively added into the vessels precontracted with 10(-7) M norepinephrine (NE). For vasoconstrictor responses, cumulative concentration-contraction curves were constructed in quiescent vessels using NE (10(-9) -10(-5) M), U46619 (10(-9) -3x10(-6) M), endothelin-1 (10(-10) -10(-7) M). In addition, contraction to angiotensin II (10(-7) M) was also obtained. Serum 17beta-estradiol levels were measured by radioimmunoassay. Blood pressure was measured by tail-cuff method in some SHRs before ovariectomy and after placebo/E 2 replacement. RESULTS: Endothelium-dependent relaxation to acetylcholine was impaired in WKY treated with 5 mg E 2 (pIC 50 : control vs 5mg E 2 : 7.75+/-0.13 vs 7.27+/-0.16: n=6: p<0.05). No significant effect was noted in SHR. Contraction to angiotensin II was inhibited by low-dose E 2 in WKY and high-dose E 2 in SHR (% of the contraction to 60 mM KCl: WKY: control vs 0.5 mg E 2 : 39+/-5 vs 25+/-2: SHR: control vs 5 mg E 2 : 34+/-4 vs 22+/-2: n=6 and p<0.05 in WKY and SHR). In contrast, NE-induced contraction was enhanced by E 2 replacement (both low- and high-dose) in WKY and SHR (WKY: control vs 0.5 mg E 2 vs 5 mg E 2 : AUC: 280+/-24 vs 387+/-26 vs 374+/-25: maximal contraction: 137+/-8 vs 166+/-8 vs 162+/-3: pD 2 : 7.63+/-0.11 vs 8.17+/-0.13 vs 8.13+/-0.13: SHR: control vs 0.5 mg E 2 vs 5 mg E 2 : AUC: 265+/-17 vs 349+/-16 vs 406+/-19: maximal contraction: 152+/-6 vs 181+/-9 vs 203+/-16: pD 2 : 7.45+/-0.13 vs 7.91+/-0.08 vs 8.04+/-0.04: n=6 and p<0.05 between control and treated groups in WKY and SHR for all parameters). Contraction to U46619 was enhanced by E 2 replacement in SHR (control vs 0.5 mg E 2 : AUC: 478+/-30 vs 574+/-23: maximal contraction: 181+/-9 vs 230+/-10: n=6: p<0.05 for both parameters). Maximal contractile response to endothelin-1 was also enhanced in SHR (control vs 0.5 mg E 2 vs 5 mg E 2 : maximal contraction: 165+/-7 vs 189+/-7 vs 199+/-8: n=6 and p<0.05 between control and treated groups) but not in WKY. Blood pressure was not different between placebo and E 2- treated SHR (171+/-2 vs 174+/-4 mmHg). CONCLUSION: In WKY, chronic high-dose estrogen replacement impairs endothelium-dependent relaxation to acetylcholine.: low-dose estrogen replacement does not affect endothelium-dependent relaxation in SHR and WKY. Estrogen replacement enhances the contraction to most of the contractile agonists tested except angiotensin II in both WKY and SHR. These results suggest that estrogen replacement affect the vascular tonus differently according to the vasoactive substances and/or hormones without significant effect on blood pressure.
15-Hydroxy-11 alpha,9 alpha-(epoxymethano)prosta-5,13-dienoic Acid
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Acetylcholine
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Angiotensin II
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Animals
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Aorta, Thoracic
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Area Under Curve
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Baths
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Blood Pressure
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Endothelin-1
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Estrogen Replacement Therapy*
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Estrogens*
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Female
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Models, Animal
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Mortality
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Norepinephrine
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Ovariectomy
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Radioimmunoassay
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Rats
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Rats, Inbred SHR*
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Relaxation