Objective:To explore the role of Semaphorins 3A(Sema 3A) and its receptor Neuropilin-1 (Nrp1) in the development of chronic periodontitis of rats and clinical samples.Methods:20 SD rats were divided into 2 groups.Rats in the experimental group were induced into chronic periodontitis models.Rats in control group were not treated.After 8 weeks,maxilla of all the rats were collected for micro-CT scanning and IHC staining.The distance from cementoenamel junction to alveolar bone crest(CEJ-ABC) and the IOD of Sema3A/Nrp1 positive staining in rats were analyzed.20 clinical samples of chronic periodontitis(n =10) and normal periodontal tissues (n =10) were collected for immunofluorescence and qRT-PCR analysis.Results:The CEJ-ABC distance of chronic periodontitis group was higher than that of the control group(P ＜ 0.05).The IOD of Sema3A/Nrp1 in experimental group was lower than that of the control group (P ＜ 0.05) and with a negative correlation with bone loss (P ＜ 0.05).Immunofluorescence and qRT-PCR analysis showed that the expression level of Sema3a/Nrpl in clinical samples with chronic periodontitis was also lower than that of the healthy subjects(P ＜ 0.05).Conclusion:The reduced Sema3A/Nrp1 plays an important role in the development of bone destruction in chronic periodontitis.

Objective To investigate the strategies of surgical approaches,indications and surgical techniques of local resection for mid-lower rectal tumors and pelvic floor neoplasia.Methods Clinical data of 122 patients underwent local resection for mid-lower rectal tumors pelvic floor neoplasia between July 2004 and July 2008 were analyzed retrospectively.Results Transanal,transsacral,transsphincteric local resection was respectively performed in 45,and 32,and 45 patients.Pathological examination proved that benign tumors were account for 81 cases,pelvic floor neoplasia 16 cases,malignant tumors 25 cases.The masses were 5.6 cm(0 to 12 cm) apart from the anal border,and the mean tumors' diameter was 4.2 cm (0.5 to 11 cm).No case was diagnosed with positive margins upon final pathology of resected specimens.The rate of postoperative complications of transanal,transsacral,transsphincteric approaches was 8.9％ (4/45),18.8％ (6/32),20.0％ (9/45),respectively.The recurrence of transanal,transsacral,transsphincteric approaches was 6.7％ (3/45),9.4％ (3/32),4.4％ (2/45),respectively.Conclusions The three approaches for patients suffering from mid-lower rectal tumors and pelvic floor neoplasia have respectively advantages.Transsphincteric approach is the most useful methods,but with more postoperative complications,so it need more surgical techniques.

Objective To explore the therapeutic effects of Montelukast for bronchial asthma combined with allergic rhinitis(AR) in children.Methods Ninety asthmatic children with AR rhinitis were randomly divided into group A,group B and control group.The children in control group were treated only with Symbicort Turbuhaler.In addition to inhalation of Symbicort Turbuhaler,the children in group A were given Montelukast 5 mg/d orally,while the children in group B were given Budesonide Nasal Spray 64 ?g/d.All the children were observed for 6 months.Daytime and night asthma symptom scores,rhinitis symptom scores,the number of days with or without acute asthma symptoms were recorded every 4 weeks.FEV1%,as one of the lung function parameters,was also recorded in the pre-treatment and 8th week,24th week after the treatment.Results After the treatment,the daytime and night asthma symptom scores and rhinitis symptom scores of group A and group B were significantly reduced(group A:F=3.45,3.35 Pa0.05).However,there was better improvement of FEV1%,more days without symptoms and fewer acute asthma attacks in group A than those in group B (t=3.83,3.76,4.26 Pa

Objective To extract and purify a polysaccharide SEP from eggs of sea urchin Strongylocentrotus nudus. and to determine its purity, molecular weight and immunological activity in vitro. Methods The orthogonal design was employed to obtain the best possible combination of the critical parameters for polysaccharide extraction. By ultrafiltration, DE-AE Sepharose Fast Flow anion-exchange chromatography and Sephacryl S-400 gel filtration chromatography, the deproteinated crude polysaccharide was purified. The homogeneity of SEP was proved by HPLC, polyacrylamide gel electrophoresis and paper chromatography. Its molecular weight was determined by HPGPC in reference to standVd T-series Dextran. Lymphocyte proliferation assay was made to investigate the immuno-modulating activity of SEP. Results and Conclusion The results indicated SEP was a homogeneous polysaccharide. Its molecular weight was about 1950KD. SEP increased remarkably spleen lymphocyte proliferation. The homogeneous polysaccharide SEP showed significantly immunological activity in vitro.

Objective:To explore the effect of oxycontin combined with gabapentin on the clinical cure and immunity for patients with neuropathic cancer pain.Methods:80 patients with neuropathic cancer pain were enrolled in our hospital from June to 2016 July,of which patients divided into two groups randomly,Group A(n=40) accepted oxycontin treatment,and Group B (n=40) adopted gabapentin based on the patients in Group A.The VAS score and curative effect of the patients were compared between two groups;The quality of life of all patients were evaluated post-treatment,and the change of immunity indexes were compared and analyzed.Results:The VAS score of all patients was decreased significantly compared with pre-treatment (P＜0.05),and the score of Group B was lower than those patients in Group A (P＜0.05);The total remission rate of Group B was significantly higher than those of Group A (P＜0.05);after treatment,the score of appetite,emotion,sleep,daily activities,social communications of all patients decreased significantly compared with pre-treatment (P＜0.05),and the change of Group B was decrease significantly higher than those patients in Group A (P＜0.05);the immune index of two groups was significantly increased (P＜0.05),and the level of the indexes including IgG,IgA,IgM,CD4+,CD4+/CD8+ and circulating immune complex (CIC) increased compared with pre-treatment remarkably (P＜0.05),and which change in Group B was significantly higher than Group A (P＜0.05).Conclusions:Oxycontin combined with gabapentin for patients with neuropathic cancer pain deserved popularization in clinical,and which not only possessed well clinical effect,but also increased the quality of life.

This dissertation is to determine the biopotency of hemostat which processed in different places by establishing a bioassay method of Bletillae Rhizoma based on the thrombin time. Contrast test is the main methodology. Specifically, the reference substance of Bletillae Rhizoma is determined by comparing with the control substance of vitamin K1 using thrombin time, which is calibrated the Bletillae Rhizoma. The hemostatic biopotency is calculated by using the method of "parallel line assay method based on quantitative responses" (3.3) from different processed products. It indicates that there is a strong linear correlation between Bletillae Rhizoma and control drugs (Y = 66.332-23.913X, R2 = 0.995 3). The hemostatic biopotency of Bletillae Rhizoma from different processed products ranged between 821.93-1 187.53 U x g(-1) shown in the paper, and all of them can meet the requirements of the test. The methodology has an appropriate instrument precision (RSD 3.8%), intermediate precision (RSD 4.6%), repeatability (RSD 3.2%) and stability (RSD 3.7%). Therefore, it can be turned out that the methodology which established in the dissertation is good at determinating the hemostatic biopotency of Bletillae Rhizoma and it is reliable, simple and repeatable.
Animals ; Drugs, Chinese Herbal ; pharmacology ; standards ; Hemostatics ; pharmacology ; standards ; Orchidaceae ; chemistry ; Rats ; Rats, Sprague-Dawley ; Rhizome ; chemistry ; Thrombin Time

Objective It is still controversial how to deal with the congenital heart disease with advanced pulmonary hypertension.The choices of treatment for these patients must depend on the character and degree of pulmonary vascular change.The pulmonary vascular change correlates well with hemodynamics and acute pulmonary vasoreactivity test.Therefore,it will play an important role to obtain accurately these evaluations.Methods This paper studies 85 cases (38 males and 46 females) with congenital heart disease complic ated with advanced pulmonary hypertension and bidirectional shunt,which are diagnosed by echocardiography.Whose age range is (22.8 ± 16.5 ) and weight range (46.4 ± 12.1 ) kg.Among those cases,42 are VSD,11 are ASD,9 are VSD with patent ductus arteriosu,7 are patent ductus arteriosu,5 are ASD with VSD,and 11 are the others.With congenital heart disease complicated with advanced pulmonary hypertension and bidirectional shunt,which are diagnosed by echocardiography.There were floating catheter retention of 4 to 13 days ( average 7.5 days).Through the right subclavian vein or jugular vein,floating catheter is inserted into pulmonary artery.Pulmonary artery pressure is recorded continuously and analyzed.Hemodynamics,acute pulmonary vasoreactivity test and drug sensitivity test are evaluated.Differences of the hemodynamics are analyzed between echocardiography and floating catheter examination.Results Compared with floating catheter examination,there are not significantly difference for the diagnosis of advanced pulmonary hypertension(98.8％ vs.100％,P ＞ 0.05),less accurately diagnosis (64.3％ vs.100％,P ＜ 0.05 ) and higher (H)false positive rate (8.4％ vs.0,P ＜ 0.05) for Eisenmenger syndrome in echocardiography examination.Floating catheter examination shows that mean systolic pulmonary artery pressure(PAP)/mean systolie body artery blood pressure (BP) and mean PAP / mean BP were equal to 1.22 ± 0.35 and 1.07 ± 0.11 respectively.The patients presented total pulmonary vascular resistance of ( 17.6 ± 8.3) Wood units.Bidirectional shunt volume is more than 30％ cardiac outputs in 7 cases.Apart from 14 cases with Eisenmenger syndrome,total pulmonary vascular resistance is ( 11.3 ± 3.7) Wood units.Acute pulmonary vasoreactivity test presents positive in 67 cases.After drug sensitivity test,14 cases with Eisenmenger syndrome underwent medical treatment and waited lung transplantation or heart-lung transplantation.Floating catheter examination happened hematoma(2/85 ) in 2 patients.71 cases underwent surgical treatment.Operative complications included right heart failure (6/71) and pulmonary infection (5/71).Operative mortality was 5.6％ (4/71).The main causes of death were right heart failure.Compared with preoperative arterial oxygen saturation,postoperative arterial oxygen saturation increased by (9.7 ± 4.1 ) ％ ( P ＜ 0.05 ).Conclusion Floating catheter examination can evaluate accurately pulmonary hypertension,hemodynamics,acute pulmonary vasoreactivity test,drug sensitivity test and bidirectional shunt volume.All the patients,who were diagnosed as advanced pulmonary hypertension with bidirectional shunt by echocardiography,should undergo floating catheterization.Floating catheter examination can provide reliable,objective theoretical basis for the choice of treatment in the congenital heart diseases with advanced pulmonary hypertension.

MAIN OUTCOME MEASURES: Free running EMG and stimulus triggered EMG, including time, frequency, amplitude, muscle group were observed and recorded simultaneously. Never root functional injury and restoration after surgery were detected.RESULTS: 378 pedicle screws in 74 patients were monitored intraoperatively, and only 3 pedicle screw malposition (2 of L_4, 1 of L_5) was detected and then replaced with the help of C-arm fluoroscopic examination. Myoelectricity appeared when the current intensity was less than 10 mA. The correct rate of implantation was 99.2%. Nerve root impingement was found in two cases during laminectomy for L_5 and S_1 decompression and never root solution, which alerted the surgical team of critical neural structures. Nerve symptoms of the lower limb were aggravated after surgery and restored following 2-4 weeks of conventional treatment. The error injury rate of nerve root was 2.7%. In all reported cases, no irreversible neurological deficit was observed 2-4 weeks after operation.CONCLUSION: Intraoperative EMG monitoring can find improperly placed screws and detect impending nerve root injury promptly. Combined EMG and 3-D imaging modality monitoring is a reliable and practicable method that can be used to protect neural structures during complex lumbosacral surgery.

OBJECTIVETo evaluate in vitro effect of abnormal savda munziq (ASMq) on the proliferation and apoptosis of human hypertrophic scar fibroblasts (HSFs).

METHODSHSFs were divided into six groups to receive different treatments as group A (blank control group), group B-E (ASMq in different concentration), and group F(5-Fu). Each group contains six specimens. The HSFs were cultured in vitro. After culture for 48 hours, the CCK8 test and flow cytometry methods were used to detect the proliferation, cell cycle and apoptosis.

RESULTSThe proliferation of HSFs in the B, C, D and E groups was inhibited at G2/M period, while it was inhibited at G0/S period in group F (P < 0.05). The inhibition effect of ASMq (0.1-1.0 mg/ml) on the fibroblasts enhanced in a concentration-dependent manner. Flow cytometry analysis with annexin V-FITC and PI staining confirmed the apoptotic. When HSFs were exposed to ASMq at 1.0 mg/ml (group E) for 48 h, the percentage of apoptotic cells increased to (43.7 +/- 2.58)%, which was significantly higher than that of blank control group (2.2 +/- 0.59)%. The induced apoptosis effect was also increased in a concentration-dependent manner.

CONCLUSIONASMq has a inhibitory effect on the proliferation and an enhancement effect on the apoptosis of fibroblast. ASMq could be used as an effective drug for treatment of hypertrophic scar.

Apoptosis ; Cell Cycle ; drug effects ; physiology ; Cell Division ; Cell Proliferation ; drug effects ; Cells, Cultured ; Cicatrix, Hypertrophic ; pathology ; Fibroblasts ; cytology ; drug effects ; Flow Cytometry ; Humans ; In Vitro Techniques ; Medicine, East Asian Traditional

Objective To evaluate the usefulness of the short-segment nerve conduction studies (SSCSs,inching test) of the peroneal nerve across the fibular head in order to diagnose and localize the site of entrapment of the nerve.Methods Fifty-four patients with suspected peroneal nerve palsy and 30 controls were studied.The symptoms all occurred in unilateral leg,involving 25 left legs and 29 right legs.Both long segment motor nerve conduction studies (LSMCs) and SSCSs were performed in all patients and controls.SSCSs were obtained at 2 cm intervals,starting 6 cm proximal (P6,P4 and P2) and 4 cm distal (D2 and D4) ending to the fibular head prominence (P).Results When nerve conduction of the entire 10 cm segment across the fibular head was tested by the conventional method,only 40 showed reduction in amplitude or slowing of motor conduction velocity or both.However,with SSCSs,54 peroneal nerves were all discovered abnormal.The results of comparison of conventional methods suggested that there were significant differences in conduction velocity between the fibular head-Ankle segment and the knee-fibular head segment in the case group,the latter ((33.63 ± 9.29) m/s) being slower than the former ((47.92 ± 4.04) m/s;t =9.776,P =0.000),while there was no obvious abnormality in the control group.The results of the control group detected by SSCSs showed that there was no significant difference between the left and right sides of the mean amplitude of the stimulation points and the mean time of segmental nerve conduction.Therefore,we set the exception criteria as the segmental nerve conduction time is longer than the corresponding control group (i + 2 s),and the CMAP amplitude of proximal stimulation point decreased by more than 20％ than the adjacent distal segment.In accordance with this standard,we found that the lesions were located in P6 to P4 in 2/54 (3.7％) legs,P4 to P2 in 4/54 (7.4％) legs,P2 to P in 43/54 (79.6％) legs,P to D2 in 12/54 (22.2％) legs,D2 to D4 in 3/54 (5.6％) legs,respectively.Consequently,the P2 to P segment was most vulnerable to damage.Conclusions SSCSs are more sensitive in detecting the entrapment of the peroneal nerve across the fibular head than the LSMCs.SSCSs could precisely localize the entrapment lesions,might be a useful tool especially for the detection of mild entrapment which has normal LSMCs findings of the peroneal nerve across the fibular head.