This study is to investigate the effects of paeoniflorin on cerebral blood flow and the balance of PGI2/TXA2 of rats with focal cerebral ischemia-reperfusion injury. A total of 72 SD rats (3) were randomly divided into 6 groups: sham operation group, cerebral ischemia-reperfusion model group (I/R gourp), low (10 mg.kg-1), middle (20 mg.kg-1) and high (40 mg.kg-1) doses of paeoniflorin groups and nimrnodipine group. Focal cerebral ischemia in rats was made by inserting a monofilament suture into internal carotid artery for 90 min and then reperfused for 24 h. The effects of paeoniflorin on neurological deficit scores and the infarction volume of brain were detected. Relative regional cerebral blood flow (rCBF) was continuously monitored over ischemic hemispheres by laser-Doppler flowmetry (LDF). The expression of COX-2 in hippocampal CAl region was estimated by immunohistochemistry and the contents of prostacyclin I2 (PGI2), thromboxane A2 (TXA2), and ratio of PGIJ2/TXA2 in serum were measured by ELISA kits. Paeoniflorin significantly ameliorated neurological scores, reduced the infarction volume, and increased regional cerebral blood flow relative to the I/R group. In addition, paeoniflorin could inhibit COX-2 expression and the release of TXA2 and prevent the downregulation of PGI2 induced by I/R injury. The neuroprotective effects of paeoniflorin against focal cerebral ischemia-reperfusion rats might be attributed to improve the supply of injured hemisphere blood flow and adjust the balance between PGI2/TXA2.
6-Ketoprostaglandin F1 alpha ; blood ; Animals ; Brain ; blood supply ; CA1 Region, Hippocampal ; metabolism ; Cyclooxygenase 2 ; metabolism ; Glucosides ; isolation & purification ; pharmacology ; Infarction, Middle Cerebral Artery ; blood ; metabolism ; pathology ; physiopathology ; Male ; Monoterpenes ; isolation & purification ; pharmacology ; Neuroprotective Agents ; isolation & purification ; pharmacology ; Paeonia ; chemistry ; Plants, Medicinal ; chemistry ; Random Allocation ; Rats ; Rats, Sprague-Dawley ; Regional Blood Flow ; drug effects ; Reperfusion Injury ; metabolism ; physiopathology ; Thromboxane B2 ; blood

Objective:To analyze the accuracy of the digital imaging fiber optic transillumination (DIFOTI) on diagnosis of caries lesions depth using DIAGNOcam system.Methods:This experiment adopted self-matching design.Seventy-four extracted teeth (molar:sixty-six,premolar:eight) with one caries lesions in proximity which were not damaged in surface marginal ridge were selected.Dental calculus and dental stains were removed from the extracted teeth for standby application.A sign was marked in the middle of the occlusal surface edge at the side of decay.Then the teeth were fixed in the standard model of dentition and cavities were adjacent with the sound tooth surface.Sticky wax was applied to seal the level of 2 mm beyond cemento-enamel junction (CEJ) in the direction of occlusion and interproximal space to imitate gingival margin and gingival papilla.The standard models of dentition was seated in imitation head mold.The lesions depth degree was looked into and checked with DIAGNOcam system.Besides,the pictures on the occlusal surfaces were recorded and saved.The sign above could be seen on the picture.The measuring tool in DIAGNOcam system was used to measure the depth of the caries from the sign (as starting point) to the deepest point of caries in the pictures and its length was recorded for a.The line a was lengthened to the contralateral edge of occlusal surface in the photo and the length was recorded for b.A line from the marked point on the occlusal surface edge of the extracted teeth was draw parallel to the line b on the corresponding photo and its length was recorded for c.The depth of the cavities on the projected images was recorded for d,and calculated d/a =c/b (digital optical fiber measured decay depth/caries damage depth of the image =actual tooth width/tooth width of the image),and d =c/b × a inferred.At last,the teeth were taken out from the standard model dentition.The decay of the tooth was removed completely.The actual depth of the cavity was recorded for D.The difference between d and D was recorded for Δd.The software of SPSS 20.0 was used to test the consistency of the results,and the MedCalc 14.8.1.0 software was used for Bland-Altman analysis.Results:The intraclass correlation coefficient (ICC) between d and D was 0.951 (ICC ＞ 75 ％),P =0.263.There was a function relationship y =0.23 ± 0.9 1x between d (x) and D (y).Bland-Altman analysis method showed that the mean of Δd (Δd) was 0.05 mm,the standard deviation of Δd (ΔdsD) =0.308,and the 95％ confidence interval was (-0.55 to 0.65).The amplitude of difference was clinically acceptable.So the consistency of the two measurement modes was high.Conclusion:There was no significant difference between the depth of caries lesions checked with DIAGNOcam system and the depth of the actual cavity,and the consistency was very good.The vitro study suggests that the DIAGNOcam system may be used to assess the depth of caries cavity as a useful tool in diagnosis and treatment.

To explore the measures of nursing management in the treatment of large number of infants with urinary calculi. The nursing management measures included launching the preparedness and response project for sudden public health events, formulating scientific and standardized nursing management system,optimizing work flow,strengthening nurse training,focusing on the details in nursing management,implementing disinfection and isolation system seriously,and paying close attention to health education for the parents of minority infants. Scientific nursing management can ensure the treatment effectiveness and nursing safety for the infants with urinary calculi.

?AIM:To observe the clinical effect of Ahmed glaucoma valve ( AGV ) implantation for teenagers with refractory glaucoma.?METHODS: Twenty-seven patients ( 27 eyes ) with refractory glaucoma were treated with AGV implantation in our hospital from October 2012 to October 2014. The patients were followed up for 12mo. The success rate of the operation, postoperative intraocular pressure, the best corrected visual acuity, as well as complications were recorded.?RESULTS:The success rate of the operation was 85%. The intraocular pressure of the 27 patients decreased from 48. 3 ± 8. 3mmHg before operations to 21. 4 ± 8. 1mmHg(P<0. 05). Visual field defect was -23. 7±4. 1dB before operations, - 27. 5 ± 4. 7dB at 12mo after operations, and the difference was statistically significant (P<0. 05). There was 85% patients with improved or unchanged vision. Early postoperative complications included shallow anterior chamber ( 5 eyes, 19%) , transient high intraocular pressure ( 3 eyes, 11%) and anterior chamber hemorrhage ( 4 eyes, 15%) , drainage tube obstruction (1 eye, 4%), anterior chamber silicone tube in poor position ( 1 eye, 4%) . There was no ambiopia, drainage erosion and exposed, plate leaked out, choroidal detachment, immune rejection of graft and other complications. Long - term complications included dyscoria ( 8 eyes, 30%) , the back of the plate packed(3 eyes, 11%).?CONCLUSION:AGV implantation is characterized by a high success rate, simple operation, less complications and is an effective treatment for refractory glaucoma in adolescents.

OBJECTIVE: To study preparation technology and properties of a new kind of iron-supplement of alginate-iron (III) complex. METHODS: The preparation parameters of polysaccharide iron (III) complex with sodium alginate and ferric trichloride were optimized by means of the single factor and response surface design. Alginate-iron (III) complex was characterized by IR and DSC. Its reducibility and drug release percentage were determined in simulated gastrointestinal liquid. RESULTS: Optimum condition follows; alginate sodium to ferric trichloride with mass ratio of 1:3.2 and alginate sodium to sodium citrate with mass ratio of 1:1.4, which were reacted in pH 6.95 of reaction liquid and at 80℃ of water bath lasting for 3. 29 h and generated alginate-iron (III) complex with the 19.57% of iron content. The IR and DSC indicated that the hydroxyl groups of alginate was combined with Fe(III). The alginate-iron (III) complex could be dissolved and reduced easily by vitamin C in physiological pH conditions. And the cumulative release percentage was more than 80% within 60 min in stimulated gastrointestinal liquid. CONCLUSION: The preparation technology of alginate-iron (III) complex was feasible. The product is high iron content and the solubility. And it can meet with the fundamental functions as a new kind of is supplement source.

Objective To investigate the efficacy and safety of surgical treatment for internal carotid artery atheromatous pseudo-occlusion (APO).Methods Clinical data of patients with carotid artery stenosis treated by carotid endarterectomy from Dec.,2011 to Jun.,2016 in Zhongshan Hospital Affiliated to Fudan University were analyzed retrospectively.Carotid endarterectomy were performed in 32 patients with pseudo-occlusion of the internal carotid artery (APO group).And 124 patients with traditional severe stenosis (70％-99％) served as control group.Perioperative major and minor complications,recurrence rate of ipsilateral ischemic stroke,restenosisrate and mortality in follow-up were compared between the two groups.Results Perioperative major complications:one patient (3.1 ％) developed myocardial infarction in the APO group,no ischemic stroke,cerebral hemorrhage and death cases;2 (1.4％) ischemic stroke cases,6 (4.2％) myocardial infarction cases and 1 (0.7％)death case was found in control group.Perioperative minor complications:1 (3.1％) incision bleeding case,2 (6.3％) pulmonary infection cases,2 (6.3％) cerebral hyperperfusion syndrome cases were found in APO group;3 (2.1％) incision bleeding cases,2 (1.4％) incision infection cases,4 (2.8％)pulmonary infection cases,2 (1.4％) cranial nerve injury cases,2 (1.4％) cerebral hyperperfusion syndrome cases were found in control group.Patients were followed up for 6-60 months,with mean follow-up period of (35.3 ± 17.5) months.During follow-up,1 (3.1％) ipsilateral ischemic stroke recurrence case,4 (12.5％) restenosis cases,and 3 (9.4％) death cases were found in the APO group.And 8 (5.6％) ipsilateral ischemic stroke recurrence cases,9 (6.3％) restenosis cases,8 (5.6％)death cases were found in control group.There were no significant differences in perioperative major and minor complications,recurrence rate of ipsilateral ischemic stroke,restenosis rate and mortality between the two groups.Conclusions Surgical treatment for atheromatous pseudo-occlusion of the internal carotid artery is safe and effective.Perioperative and follow-up results are satisfactory.

Objective To explore the application value of endoscopic thyroidectomy via breast approach without transection anterior cervical muscle group .Methods The clinical data of 130 patients which treated by thyroidectomy without transection ante‐rior cervical muscle group were analyzed ,retrospectively .There were 68 cases treated by endoscopic thyroidectomy via breast ap‐proach and 62 cases treated by conventional thyroidectomy .Results 68 patients underwent endoscopic thyroidectomy ,the mean time of operation was(127 .66 ± 29 .56)min ,which was longer than that in conventional group (89 .06 ± 24 .25)min(P<0 .01) ,but blood loss was significantly less in endoscopy group than that in conventional group(19 .13 ± 7 .37)mL vs .(50 .17 ± 29 .28)mL . (P<0 .01) .The patients treated by endoscopic thyroidectomy with neck pain induration were less than that in conventional group (1 case vs .7 case) ,P<0 .01 ,and the nerve dysfunction were (4 case vs .3 case) ,P>0 .05 ,the nerve dysfunction had no significant difference .Conclusion Endoscopic thyroidectomy via breast approach without transection anterior cervical muscle group has less blood loss ,lower neck pain induration rate ,hidden incisions and excellent cosmetic benefits .The method is safe and feasible .

Objective To explore the therapeutic effects of statin in patients with chronic obstructive pulmonary disease (COPD) in stable period. Methods 83 patients with COPD in stable period were recruited and randomly divided into two groups, treatment group (n = 41) and control group (n = 42).The control group received conventional routine therapy, and treatment group was given rosuvastatin calcium 20 mg once per day on the basis of routine treatment. The levels of sera C-reactive protein (CRP), pulmonary function (FEV1、FEVl%pred), and COPD assessment test (CAT) were observed at the time points of 0 week and 12th week, 24th week and 48th week were compared between two groups. Results At 12th week after the treatment, sera CRP levels, FEV1, FEV1%pred and CAT scores in either control group or treatment group showed some extent of improvements as compared to those at the time point of 0 week, and there was statistical difference of sera CRP levels and CAT scores between two groups (P < 0.05). There was no statistical difference of FEV1, FEV1%pred between two groups (P > 0.05) .24th week and 48th week after the treatment; sera CRP levels, FEV, FEV1%pred and CAT scores in two groups all significantly improved and were statistical different between two groups (P < 0.05). Conclusion Statin can alleviate inflammatory reaction, improve pulmonary function and life quality of patients with COPD.

AIM:To study alterations of cardiac sarcoplasmic reticulum (SR) function in vitamin D 3-induced calcium overload rats. METHODS: The Ca-overload rat models were prepared by vitamin D 3 plus nicotine. Cardiac SR was seperated by centrifuging. The measurement of SR Ca 2+ uptake and Ca 2+ release activities were preformed by the Millimore filtration technique. Specific SR [ 3H]-ryanodine binding capacity was measured by radioligand method. RESULTS: Compared with control,myocardial calcium content in calcium overload rats increased by 78%( P

AIM: To investigate the effect of neferine (Nef) on human gastric carcinoma cell line with multidrug resistance (MDR). METHODS: The cytotoxic effect of vincristine (VCR) was evaluated by MTT assay. The cell apoptosis induced by VCR was determined by flow cytometry, and the expression of P-glycoprotein (P-gp) and multidrug-resistance-associated protein (MRP) in cells was examined by immunofluorescence flow cytometry. RESULTS: MTT assay showed that Nef at the concentration of 5 ?mol?L~(-1) to 10 ?mol?L~(-1) have no cytotoxicity to parent human gastric carcinoma cell line (SGC7901) and its VCR-resistant variant cell line (SGC7901/VCR). The IC_(50) value of VCR to SGC7901 cell line was 0.06 mg?L~(-1)and that of to SGC7901/VCR cell line was 2.32 mg?L~(-1), which indicated SGC7901/VCR cell line were 39 times more resistant to VCR in comparison with the parent SGC7901 cell line. After treatment with Nef at the concentrations of 2.5, 5 and 10 ?mol?L~(-1), the IC_(50) value of VCR to SGC7901/VCR cell line decreased to 0.34, 0.12 and 0.05 mg?L~(-1), respectively and those increased by 6.8-, 18.1- and 43.8- fold in the chemosensitivity, respectively. Flow cytometry showed that SGC7901/VCR cells were resistant to apoptosis induced by VCR. After 24 h treatment with Nef (2.5, 5 and 10 ?mol?L~(-1)) and VCR, the apoptosis of SGC7901/VCR cells increased, which indicated Nef could abolish resistance of SGC7901/VCR cells to VCR-induced apoptosis. Furthermore, the action of Nef was more potent than verapamil. The expression of P-glycoprotein and multidrug resistance associated protein was strongly positive in SGC7901/VCR cells, and the expression level of P-gp and MRP in SGC701/VCR cells was significantly down-regulated at 24 h after treatment with Nef (10 ?mol?L~(-1)). CONCLUSIONS: Nef can reverse MDR in multidrug-resistant human gastric carcinoma SGC7901/VCR cell line. Its mechanism might be associated with down-regulation of expression of P-gp and MRP in SGC7901/VCR cells.