Objective To investigate effect of alendronate on OPG and RANKL in periprosthetic osdeolysis induced by polyethylene particles.Methods Twelve rabbits which had been implanted a titanium plug in femur by intercondylar notch were divided into two groups randomly,polyethylene particles were injected into the left knee joint,one received alendronate,and the other placebo as control.After 12 weeks,all rabbits were sacrificed.Periprosthetic tissues were observed by ELISA.Results The concentration of OPG in the experimental group was not higher than that of the control (P ＞0.05 ).But the concentration of RANKL in the experimental group was lower(P ＜0.01 ).And specific value of OPG/RANKL was higher in the experimental group ( P ＜ 0.05 ).Conclusion The therapy of alendronate can change the concentration of RANKL and specific value of OPG/RANKL in periprosthetic osdeolysis induced by polyethylene particles,inhibit aseptic loosening of prosthesis in rabbits.

Objective To investigate the clinical significance of CD55,CD59 and Aeromonas hydrophila toxin variant (FLAER) in the diagnosis of anemia and paroxysmal nocturnal hemoglobinuria (PNH).Methods Collected 30 healthy controls,22 cases of PNH,33 cases of aplastic anemia (AA),37 cases of iron deficiency anemia (IDA),45 cases of megaloblastic anemia (MA),30 cases of hemolytic anemia (HA) and 31 cases of myelodysplastic syndrome (MDS) from January 2009 to March 2017,CD55,CD59 and FLAER negative cell ratio of peripheral blood neutrophil of them were detected by multipa rameter flow cytometry.Results The detection rates of FLAER in PNH,AA and MDS groups were higher than those of CD55 and CD59,but there was significant difference in AA (x2 =7.759,5.518,P=0.005,0.019＜0.05).The average CD55,CD59 and FLAER deletion rate in PNH and AA group were significantly higher than those in normal control group and other groups (t=2.163～17.890,P=0.000～0.038＜0.05).The number of FLAER in PNH group was higher than CD59 and CD59 was higher than CD55 with the statistically significant difference (t=2.503 ～ 6.308,P=0.000 ～0.016＜ 0.05).Conclusion CD55,CD59 and FLAER have important value in the diagnosis of PNH and differential diagnosis with other anemia diseases,and can also be used to detect the presence of MDS and AA in patients with PNH.FLAER outperforms CD59,CD59 outperforms CD55.

Objective To evaluate the value of the physiological and operative severity score for the enumeration of mortality and morbidity (POSSUM) and P-POSSUM in predicting the risks of orthopedic surgeries for senile patients with femoral neck fracture.Methods A total of 108 patients with femoral neck fractures who underwent hip joint replacement were retrospectively studied using POSSUM and P-POSSUM scoring system to predict their mortality and complication rate.The difference between predictive value and observed value was analyzed by chi-square test.Meanwhile,the patients were divided into two groups based on their POSSUM scores.The differences between two groups were analyzed.Results According to POSSUM scores,47 patients were predicted to have complications(the mean rate was 43.52％),but only 37 did actually (the rate was 34.26％).There was no significant difference between predicted values and observed values (P =0.238).The predicted death toll was 11 cases (the mean rate was 10.19％),but actually only 2 patients died (the rate was 1.85％).Predicted value was higher than observed value.In terms of complications,death toll agreed well with the predicted values calculated by P-POSSUM (predicted death of 4 cases' the mean mortality being 3.70％ ; actual death of 2 cases' the mortality was 1.85％) without significant difference (P =0.625).We divided the patients into two groups with the POSSUM scores 40,and there was no significant difference between predicted values and observed values (P =0.527,P =0.285).Conclusions POSSUM has better predictive ability of morbidity,but overestimates mortality.P-POSSUM more accurately predicts mortality than POSSUM.The predicted results of POSSUM and P-POSSUM scoring systems are satisfactory in the high risk group.

Objectives To investigate the prevalence of animal plague in Horqin Right Front County and provide scientific bases for prevention and treatment of the disease.Methods Plague surveillance was carried out according to the requirements of National Plague Monitoring Programme at 3 monitoring points in Horqin Right Front County in 2012.Squirrel density,the number of small rats,rat fleas,pathogenic and serological surveillance of Yersinia pestis were included in the study.Results A total of 356 dauricus were captured,the average density was 0.88 rats/hm2; female and male ratio was 1 ∶ 1.31 and the female embryo rate was 96.46％.The captured 13 small nocturnal mice belonged to 2 species,which included 10 cricetulus barabensis and 3 cricetulus longicaudatus,and the capture rate of small nocturnal mouse was 4.33％ (13/300).A total of 98 rat fleas were collected from 25 rats; rat flea carrying rate was 100％(25/25) and flea index was 3.92.Eighty rat burrows were detected,and flea index was 0.188.Pathogen test results were negative.Indirect hemagglutination test was used to examine 356 rat sera and 1 serum was positive.Conclusions Detection of positive rat sera has proved the existence of plague epidemic in Horqin Right Front County.Therefore,the work on plague prevention and control has a long way to go.

OBJECTIVETo explore the protective effect of baicalin against rotenone-induced injury on PC12 cells, and the po-tential mechanism of action action was also explored.

METHODPC12 cells were injured by rotenone and were treated with different concentrations (0.1, 1, 10 μmol x L(-1)) of baicalin at the same time. Cell viability was analyzed by MTT, and morphology was observed by phase-contrast microscopy. The cell apoptosis was detected by flow cytometry by Annexin V-FITC/PI staining. The intracellular ROS level was determined by fluorescence microscope with DCF-DA staining. The expression of Bcl-2, Bax and Caspase-3 was analyzed by Western blot.

RESULTThe viability of PC12 cells exposure to rotenone for 24 hour was gradually decreased with dose escalating and 1.5 μmol x L was adopted to do the following experiment. Baicalin increased cell viability, improved cell morphology and decreased intracellular ROS level. Moreover, FACS indicated baicalin attenuated the apoptosis induced by rotenone significantly. Western blot showed that Bcl-2, Bax and Caspase-3 expression in rotenone-induced PC12 cells was reversed by baicalin.

CONCLUSIONThis study has demonstrated that baicalin protects PC12 cells against rotenone-induced apoptosis, at least in part, by scavenging excessive ROS and inhibiting the mitochondrion-dependent apoptotic pathway.

Animals ; Apoptosis ; drug effects ; Caspase 3 ; metabolism ; Cell Survival ; drug effects ; Cytoprotection ; drug effects ; Flavonoids ; pharmacology ; Gene Expression Regulation ; drug effects ; Intracellular Space ; drug effects ; metabolism ; PC12 Cells ; Proto-Oncogene Proteins c-bcl-2 ; metabolism ; Rats ; Reactive Oxygen Species ; metabolism ; Rotenone ; pharmacology ; bcl-2-Associated X Protein ; metabolism

Objective To find a way to measure and count plane distribution of cells distributed on single layer and compare differences of undifferentiated mesenchymal cells of periosteum germinal layer from different parts of the body.Methods After counting the number of undifferentiated mesenchymal cells of periosteum germinal layer from different parts of the body microscopically and figuring out the number of cells per area unit in each periosteum specimen,the obtained data were statistically analyzed and the stratum structure of periosteum observed microscopically.Results The homogeneity of variance test showed homoscedasticity,with no statistical significance(P＞0.05).The analysis of variance found homoscedasticity but showed no statistical significance(F=0.253,P＞0.05).The periosteum of patel- la,tibial plateau and costa had two layers,while the periosteum of costal cartilage had three layers. Conclusions There is no conspicuous difference upon proliferation and evoluting activities of periosteum from different parts of body.Therefore,it is unnecessary to choose specific parts for drawing the periote- um in clinical situation.In the meantime,the structure of periosteum from different parts diversifies.

Objective To investigate the application of ventriculoscope combined with sight glass in the treatment of hypertensive cerebral intraventricular hemorrhage. Methods Between June, 2005 and June, 2008, 34 patients with hypertensive cerebral intraventricular hemorrhage received treatment with ventriculoscope combined with sight glass, and another 40 patients were treated with routine external ventricular drainage plus urokinase therapy. The clinical outcomes of the patients in the two groups were comparatively analyzed. Results In the 34 cases treated with ventriculoscope combined with sight glass, most of the hematornas in the lateral and third ventricles were cleared with an average operating time of 50 min and mean consciousness recovery time of 7 days. All the patients were followed up for 6 months, and the prognosis evaluated by activity of daily living (ADL) scale showed significant difference between the two groups (P<0.05). Conclusion Ventrieuloscope combined with sight glass for treatment of hypertensive cerebral intraventricular hemorrhage allows better operative field exposure, minimal invasiveness, and rapid recovery of the patients, and may serve as a safe and effect ivesurgical approach for improving the prognosis of the patients.

Objective To investigate the protective effect of butyrolphthalein on nerve injury in rats with acute cerebral infarction(ACI)by regulating Toll-like receptor 4(TLR4)/nuclear transcription factor-κB(NF-κB)pathway.Methods SD rats were randomly divided into model group and experimental-L,-M,-H groups;ACI models were established in vivo except sham operation group.The experimental-L,-M,-H groups were given 20,40,80 mg·kg-1 butylphthalide,qd,for 7 days;the sham operation group and the model group were given the same amount of 0.9％NaCl,for 7 days.Neural function score,bilateral sticker removal time,balance beam crossing score,cerebral water content and cerebral infarction volume of rats in each group were measured.The expression of axonal growth inhibitory factor A(Nogo-A)and serum inflammatory factor in hippocampus were detected by enzyme-linked immunosorbent assay(ELISA).The expression of TLR4/NF-κB pathway related proteins was detected by Western blot.Results The neural function scores of sham operation group,model group,and experimental-L,-M,-H groups were 0,3.55±0.52,2.55±0.52,1.82±0.60,0.91±0.30,respectively;the Nogo-A in hippocampus were(0.93±0.23),(6.32±0.53),(5.10±0.55),(3.54±0.57),(1.58±0.30)ng·L-1,respectively;serum Nogo-A were(0.49±0.12),(5.09±0.82),(3.83±0.54),(2.23±0.64),(1.13±0.25)ng·L-1,respectively;TLR4 protein expression were 0.44±0.05,1.23±0.14,0.93±0.07,0.75±0.06,0.55±0.07,respectively;the expressions of p-p65 NF-κB protein were 0.32±0.05,0.82±0.06,0.68±0.08,0.57±0.07,0.44±0.05,respectively.There were statistically significant differences between sham operation group and model group(all P＜0.05).There were significant differences in the above indexes between the model group and the experimental-L,-M,-H groups(P＜0.05).Conclusion Butylphthalein can play a neuroprotective role in ACI rats by regulating TLR4/NF-κB pathway to improve nerve function and reduce inflammatory damage.

AIMTo study the pharmacokinetics and bioequivalence of acipimox sustained-release tablets (SRT) after a single and multiple oral dose in healthy dogs.

METHODSThe plasma concentrations of of SRT and reference capsules with a single and multiple oral doses.

RESULTSThe drug concentration-time profiles fitted to a noncompartment model. After a single dose administration of sustained-release tablets and capsules, the pharmacokinetic parameters were as follows: AUC were (158 +/- 30) and (147 +/- 37) microg x h x mL(-1); Tmax were (4.3 +/- 0.8) and (2.6 +/- 1.3) h; Cmax were (29 +/- 6) and (42 +/- 10) microg x mL(-1); T(1/2) were (2.3 +/- 0.7) and (1.60 +/- 0.10) h; MRT were (6.0 +/- 0.8) and (3.9 +/- 0.7) h, respectively. The relative bioavailability of the sustained-release tablet was (108 +/- 16) %. After a multiple oral administration of sustained-release tablets and capsules, the pharmacokinetic parameters were as follows: AUC were (209 +/- 23) and (195 +/- 26) microg x h x mL(-1); Tmax were (6.3 +/- 0.8) and (3.4 +/- 1.5) h; Cmax were (27 +/- 4) and (36 +/- 5) microg x mL(-1); Cmmin were (2.2 +/- 1.0) and (0.20 +/- 0.20) microg x mL(-1); Cav were (8.7 +/- 1.0) and (8.1 +/- 1.1) micro x mL(-1); FI were (293 +/- 73) % and (448 +/- 91) % , respectively. The relative bioavailability of the sustained-release tablet was (114 +/- 19) %.

CONCLUSIONThe results of two one-side test from single dose administration shown that two preparations were bioequivalent. The Cmax of sustained-release tablet was lower than that of capsules, while the Tmax and MRT of sustained-release tablet were higher than that of capsule, which indicating a good retarding effect. The results from multiple dose administration also shown that two preparations were bioequivalent and the DF of sustained-release tablet was significant lower than that of capsule.

Administration, Oral ; Animals ; Area Under Curve ; Biological Availability ; Capsules ; Delayed-Action Preparations ; Dogs ; Dose-Response Relationship, Drug ; Hypolipidemic Agents ; administration & dosage ; pharmacokinetics ; Pyrazines ; administration & dosage ; pharmacokinetics ; Random Allocation ; Tablets ; Therapeutic Equivalency