Objective To objectively evaluate the intrusion effects on the maxillary incisors of implants versus conventional method(J-hook headgear ,utility arch) .Methods Such online databases as Cochrane library ,PubMed ,EMbase ,VIP ,Wanfang and CNKI were searched by randomized control test and prospective case controlled study about implants vs conventional anchorage for the maxillary incisor intrusion .After study selection ,assessment and data extraction conducted ,meta-analyses were performed by u-sing the RevMan 5 .1 software .Results Totally 11 studies were included ,6 studies involving 154 patients were included in the J-hook headgear group ,5 studies involving 127 patients were included in the utility arch group .The results of meta-analyses showed that :(1)Compared with the J-hook headgear ,implants had more decrement in the distance of upper center incisior cutting to palatal plane(P<0 .001) ,more decrement in overbite(P=0 .001) ,shorter treatment time (P<0 .001) ,less increase in SN-OP angle(P=0 .004) ,less decrement in distance of maxillary molar cusp to palatal plane (P=0 .020);There was no statistically significant differ-ence in overjet ,root resorption(P>0 .05) .(2)Compared with the utility arch ,implants had more decrement in the distance of the center of resistance of the upper incisor to palatal plane (P=0 .010) ,less increase in U6-PP angle (P<0 .001);There was no statis-tically significant difference in the distance of upper center incisior cutting to palatal plane ,U1-PP angle ,the distance of upper first Molar cutting to palatal plane ,sagittal position of the mesial tip of the upper first Molar ,overbite ,overjet ,course of treatment ,root resorption(P>0 .05) .Conclusion The implants anchorage intruded the maxillary incisor was better than conventional method (J-hook headgear ,utility arch) ,it has more incisor intrusion ,shorter treatment time and more comfortable for the patients ,there was no difference in root resorption between the two groups .

Objective To investigate the clinical efficacy of sequential acupuncture in treating post-stroke dysphagia. Methods One hundred and ten patients with post-stroke dysphagia were randomly allocated to treatment and control groups, 55 cases each. The control group received routine medication and the treatment group, “cortex-pharynx-tongue root” sequential acupuncture in addition. The pre-/post-treatment difference in the Kubota’s water drinking test score was observed in the two groups and the clinical therapeutic effects were compared between the two groups after 14 days of treatment.Results There was a statistically significant pre-/post-treatment difference in the Kubota’s water drinking test score in the two groups (P<0.01,P<0.05). There was a statistically significant post-treatment differences in the Kubota’s water drinking test score between the treatment and control groups (P<0.05). The total efficacy rate was 89.1% in the treatment group and 67.3% in the control group; there was a statistically significant difference between the two groups (P<0.05).Conclusion Sequential acupuncture is an effective way to treat post-stroke dysphagia.

Objective To compare the antitumor effect of self-developed albumin bound paclitaxel for injection ( PAB) and commercial albumin-bound paclitaxel for injection ( Abraxane ) . Methods The antineoplastic effects of PAB and Abraxane were evaluated in H22, Lewis and RM-1 allograft tumor mouse models after repeated intravenous injection (13. 4, 20. 0, 30. 0 and 45. 0 mg·kg-1 PAB and 20. 0 and/or 30. 0 mg·kg-1 Abraxane, respectively). Results PAB significantly inhibited H22 tumor growth at from the doses of 13. 4, 20. 0, 30. 0, and 45. 0 mg·kg-1,and the antitumor effect of PAB at 20. 0 mg·kg-1 was not significantly different from Abraxane at 20. 0 mg·kg-1 . PAB dose-dependently inhibited Lewis and RM-1 tumor growth at the doses of 20. 0, 30. 0, and 45. 0 mg·kg-1 . The no observed adverse effect level of PAB and Abraxane was 20. 0 mg· kg-1 in Lewis and RM-1 bearing C57 female mice. The antitumor effect and toxicity was not significantly different between PAB and Abraxane at equivalent doses. Conclusion At the same dose level, the antitumor activity and toxicity of PAB was equivalent to those of Abraxane.

Objective To understand the information of food hypersensitivity of children with Henoch-Schonlein purpura (HSP) by food intolerance test.Methods Seventy-four children (40 boys and 34 girls;aged from 3 to 14) with HSP who were hospitalized in our hospital from Dec.2006 to May 2007 were chosen.Two mils venous blood was collected from each object,separated serum.Enzymelinked immunosorbent assay method was applied to detect the serum concentration of 14 kinds food allergen IgG in 74 children with HSP.The concentration of food allergen IgG was divided into 4 levels: 0(IgG0.20 U/L,servious allergy).Results The positive rate was 77.0% in 74 cases with HSP.One type of food allergen specific IgG increased in 24 cases(42.1%),2 types of antibodies increased in 16 cases(28.1%),3 types of antibodies increased in 12 cases(21.1%).Four or more types of antibodies increased in 5 cases(8.7%).The positive rates of 14 food allergen IgG were as follow:egg 93.0%,milk 26.3%,soybean 15.8%,tomato 14.0%,wheat 12.3%,ling 12.3%,shrimp 8.8%,crab 8.8%,beef 3.5%,corn 1.8%,rice 1.8%.Conclusion Food intolerance test is a useful method for children with HSP to find food allergen and guideline for diet of these children.

OBJECTIVETo study clinical efficacy of autologous bone graft for acetabular defect of Crowe III and IV hip dysplasia.

METHODSThe 22 patients with 25 hips of DDH (Crowe type III, IV) from March 2010 to May 2013 were retrospectively analyzed. Total hip arthroplasty (THA) combined autogenous bone grafting was performed for all these patients with osteoarthritis secondary to DDH. Among them, 19 patients were females (21 hips) and 3 patients were males (4 hips), ranging in age from 43 to 67 years old, averaged 55 years old. There were 6 hips with Crowe type III and 19 hips with Crowe type IV. Before surgery, all the patients had hip pain, limb shortening and hip limited function of hip joint. After 12 months, the degree of recovery about limb length, functional recovery, autogenous bone graft fusion were observed.

RESULTSAll the patients were followed up and no dislocation were occurred. At 12 months after operation, the average Harris hip joint llzncation score were 83.30±6.13, and 18 cases got an excellent result and 4 good. The length of lower limbs decreased from preoperative (3.20±0.81) cm to 12 months after operation (0.92±0.23) cm (t=14.864, P<0.05).

CONCLUSIONTHA combined with structural femoral head autograft for patients with osteoarthritis secondary to DDH can obtain favorable results, significantly improving the effect of operation treatment.

Acetabulum ; surgery ; Adult ; Aged ; Arthroplasty, Replacement, Hip ; Female ; Femur Head ; transplantation ; Hip Dislocation, Congenital ; surgery ; Humans ; Male ; Middle Aged ; Osteoarthritis ; surgery ; Transplantation, Autologous

BACKGROUND:Fibrin glue introduced into calcium phosphate cement has not been confirmed whether this way could overcome the compressive limits and the low degradation of calcium phosphate cement and to modify the biological properties of calcium phosphate cement. OBJECTIVE:To explore the mechanical and biological properties of calcium phosphate cement/fibrin glue at different powder/liquid ratio for bone regeneration in vitro. METHODS:Calcium phosphate cement and fibrin glue were mixed at ratios of 1:1, 3:1, 5:1 (mL/g), and the pure calcium phosphate cement served as controls. Setting time, scanning electron microscope and the biomechanical test were used to analyze the composite scaffold structure, physical performance and the mechanical properties. Passage 3 osteoblasts were respectively inoculated on the material surface of the four groups, and pure cells served as blank controls. celladhesion, proliferation and alkaline phosphatase activity were observed. RESULTS AND CONCLUSION:The initial and final setting time of calcium phosphate cement/fibrin glue at 1:1 and 3:1 (mL/g) was higher than that in the control group (P<0.05), while the initial and final setting time of calcium phosphate cement/fibrin glue at 5:1 (mL/g) was lower than that of the control group (P<0.05). Scanning electron microscope showed smoother and denser surface of composite scaffolds compared with the pure calcium phosphate cement. The aperture of the composite scaffolds was decreased with the increasing concentration of fibrin glue. The compressive strength of composite scaffolds at 3:1 and 5:1 was higher than that of the control group (P<0.05), while the modulus of the composite scaffolds at 1:1, 3:1, 5:1 was higher than that of the control group (P<0.05). celladhesion, proliferation and alkaline phosphatase activity showed no difference among the three composite scaffold and control groups, but al higher than the blank control group (P<0.05). These findings indicate that fibrin glue introduced into calcium phosphate cement can overcome the low-strength limits of calcium phosphate cement, and maintain the good biological properties of calcium phosphate cement for bone regeneration.

Aim To investigate the protective effects of YXETNZ injection on SH-SY5 Y cells damaged by oxygen-glucose deprivation ( OGD ) , and explore its functional mechanisms. Methods After 4 h of OGD, the cells were treated with 25 mg·L-1 drugs for 1 h. Subsequently, cell viabilities were measured by cell counting kit-8 ( CCK-8 kit ) and cell apoptosis was measured by caspase-3/7 assay kit according to manu-facturer’ s instructions. Furthermore, cell death was also detected by ELISA. The levels of phospho-Akt, phospho-PKA,phospho-Bad were evaluated by western blot. Results Oxygen-glucose deprivation significant-ly decreased the cell viabilities of SH-SY5Y cells, while YXETNZ injection significantly increased cell vi-abilities, phospho-Akt, phospho-PKA and phospho-Bad. Furthermore, YXETNZ injection also reduced the activities of caspase-3/7 and cytoplasmic histone-asso-ciated-DNA-fragments contents. Conclusion Our re-searches demonstrat that YXETNZ injection shows good neuroprotective effects on SH-SY5 Y cells after oxygen-glucose deprivation. The underlying mechanisms may be associated with activation of PI3 K/Akt/Bad/caspase-3/7 , cAMP/PKA/Bad/caspase-3/7 signaling pathway.

OBJECTIVETo observe clinical efficacy of renovation stem revision femoral head arthroplasty for the treatment of unstable intertrochanteric fracture in the elderly.

METHODSTotally 32 elderly patients with unstable intertrochanteric fracture were treated with renovation stem revision femoral head arthroplasty from September 2007 to January 2011. There were 11 males and 21 females with an average age of 83.8 (ranged, 80 to 98) years old,the time from injury to hospital ranged from 4 h to 14 days. According to Evans-Jensen classification, 6 cases were type II a, 20 cases were type II b, and 6 cases were type III. Postoperative mortality, complication rates and Harris hip function score were compared and analyzed to evaluate curative effect.

RESULTSAll patients were followed up and no dislocation occurred. Six patients were died during 15 months and 4.5 years; 24 cases recoved to independent wakling at 6 months after operation, and 8 cases walked with stick and walker. The average Harris hip joint function score were (91.56 +/- 2.96), 28 cases got excellent results and 4 cases good. Nine cases occurred complications and healed after treatment.

CONCLUSIONRenovation stem revision femoral head arthroplasty is a active and reliable method in treating unstable intertrochanteric fracture in the elderly.

Aged, 80 and over ; Arthroplasty, Replacement, Hip ; methods ; Female ; Femoral Neck Fractures ; surgery ; Hip Fractures ; surgery ; Humans ; Male

Objective: To study the imaging performance and pulmonary function of pneumoconiosis patients at stage three. Methods: 89 cases of pneumoconiosis patients at stage three for high thousand volt back chest, chest CT, pulmonary function, analysis the relationship of high thousand volt back chest, chest CT manifestations and pulmonary function. Results: In patients with chest X-ray progressive massive fibrosis range of 2.31-102.95 cm², divide patients according to the X-ray performance into three groups, the difference of each group pulmonary function index FVC、FEV₁、PEF、MEF_75%、MEF_50%、MEF_25%、MVV is statistically significant (P<0.01) , the difference of FEV₁/FVC%、RV/TLC、DLCO is no statistical significance (P>0.05) . Checked by related, in pneumoconiosis patients at stage three, the X-ray manifestations and pulmonary function index FVC、FEV₁、FEV₁/FVC%、PEF、MEF_75%、MEF_50%、MEF_25%、MVV、DLCO showed a negative correlation (r=-0.326, -0.438, -0.251, -0.344, -0.317, -0.337, -0.425, -0.347, -0.230) . With the deterioration of the X-ray imaging findings, pulmonary function index FVC、FEV₁、FEV₁/FVC%、PEF、MEF_75%、MEF_50%、MEF_25%、MVV、DLCO is a trend of decrease (P<0.05) . The X-ray changes is not associated with RV/TLC. By linear regression analysis, FVC、FEV₁、FEV₁/FVC%、PEF、MEF_75%、MEF_50%、MEF_25%、MVV、DLCO regression equation are meaningful. The RV/TLC regression equations is meaningless. The volume of the patients with chest CT progressive massive fibrosis range of 4.86~179.74 cm³, divide patients according to the chest CT performance into three groups, the difference of each group pulmonary function index FVC、FEV₁、PEF、MEF_75%、MEF_50%、MEF_25%、MVV、RV/TLC is statistically (P<0.05) , the difference of FEV₁/FVC%、DLCO is no statistical significance (P>0.05) . Checked by related, in pneumoconiosis patients at stage three, chest CT manifestations and pulmonary function index FVC、FEV₁、FEV₁/FVC%、PEF、MEF_75%、MEF_50%、MEF_25%、MVV showed a negative correlation (r=-0.360, -0.419, -0.256, -0.432, -0.366, -0.326, -0.254, -0.405, ) , It is not associated with the RV/TLC、DLCO. With the deterioration of the chest CT imaging findings, pulmonary function index FVC、FEV₁、FEV₁/FVC%、PEF、MEF_75%、MEF_50%、MEF_25%、MVV is a trend of decrease (P<0.05) . By linear regression analysis, FVC、FEV₁、FEV₁/FVC%、PEF、MEF_75%、MEF_50%、MEF_25%、MVV regression equations are meaningful. The RV/TLC、DLCO regression equations are meaningless. Conclusion It is correlated with chest X-ray, chest CT manifestations and pulmonary function in pneumoconiosis patients at stage three, that could help guide clinicians comprehensive evaluation in patients with pulmonary function status.

OBJECTIVETo investigate the spectrum and drug sensitivity of pathogenic bacteria in children with nephrotic syndrome (NS) complicated by urinary tract infection (UTI).

METHODSA retrospective analysis was performed on the spectrum and drug sensitivity of pathogenic bacteria in 97 children with NS complicated by UTI, who hospitalized from January to December, 2011.

RESULTSThe incidence of UTI in children with NS was 36.5%. It was significantly more common in children with recurrent NS than in those with primary NS (44.0% vs 31.9%; P<0.05). These cases mainly presented with asymptomatic bacteriuria. Enterococcus was the most common pathogenic bacteria (50.5%), including Enterococcus faecium (29.4%) and Enterococcus faecalis (21.1%), followed by Gram-negative bacteria, such as Escherichia coli (15.6%) and Klebsiella pneumoniae (14.7%). Enterococcus was highly sensitive to nitrofurantoin, vacomycin and linezolid, but was highly resistant to tetracycline and moxifloxacin. More multi-resistant strains were detected in Enterococcus faecium than in Enterococcus faecalis (72% vs 17%; P<0.05). Escherichia coli and Klebsiella pneumoniae were highly sensitive to amikacin, imipenem and piperacillin/tazobactam. Of the Gram-negative bacteria, 25% produced extended spectrum β-lactamases (ESBLs). ESBLs-producing bacteria had 100% sensitivity to imipenem, amikacin and piperacillin/tazobactam but were highly resistant to ampicillin, cefazolin and ceftriaxone.

CONCLUSIONSChildren with recurrent NS are more susceptible to UTI than those with primary NS. Enterococcus is becoming major pathogenic bacteria for UTI in children with NS and has relatively high drug resistance, and most strains of Enterococcus faecium are multi-resistant.

Adolescent ; Bacteria ; drug effects ; isolation & purification ; Child ; Child, Preschool ; Drug Resistance, Bacterial ; Female ; Humans ; Infant ; Male ; Microbial Sensitivity Tests ; Nephrotic Syndrome ; complications ; microbiology ; Recurrence ; Retrospective Studies ; Urinary Tract Infections ; epidemiology ; etiology