Compound Danshen aerosol remarkably increased hypoxia tolerance after isoproterenol injection and prolonged survival time in mice. The electrocardiogram of rats and rabbits with pituitrin-induced ischemia was significantly improved. The aerosol also decreased the elevation of lactic dehydrogenase in rats with experimental myocardial infarction.

Objective To investigate the causes,consequences and management of injuries to the draining veins after embolization of brain arteriovenous malformations(BAVMs)with ?-n-butyl cyanoacrylate (NBCA).Methods The angiographic imaging data of 189 BAVMs patients who underwent NBCA embolization were studied retrospectively.The status of the draining veins before and after NBCA embolization was observed and compared.The intracerebral hemorrhage(ICH)complications and their relation to their angiographic features were analyzed.Results Twenty-three patients out of 189 patients showed injuries to the draining venous system,including 10 low-grade injury,6 moderate injury,and 7 high- grade injury.Six patients suffered from ICH after embolization,of whom 4 patients were due to injuries of the draining veins(2 moderate and 2 high-grade).In the 3 months follow-up evaluation of 4 patients with ICH, one died,one was in vegetative state,and the other two patients suffered from residual severe or minor (1 patient for each)permanent neurological deficits.Conclusion Our findings suggest that injury of the draining veins is the major cause of ICH and may lead to serious consequences after embolization of BAVMs with NBCA.

Objective To investigate whether elevated pre-procedural C-reactive protein (CRP) and Interleukin-6 (IL-6) concentrations may be relevant to early outcome in patients undergoing PCI.Method 100 consecutive patients undergoing pereutaneuous coronary intervention (PCI) were included in our study.Peripheral blood samples for CRP and IL-6 testing were withdrawn before PCI.Acute vascular complications resulted from PCI were determined by subsequently coronary angiography.The early coronary events during hospitalization were clinically followed.Results Thirty patients developed acute vessel occlusion,and another one developed subacute coronary thrombosis at 2 days after PCI.Increased levels of CRP correlated well with the occurrence of vascular complications as regards the significant difference existing amongⅠvsⅢandⅠvsⅣquartile groups,P

OBJECTIVETo explore the effect of ligustrazine on the migration of bone marrow mesenchymal stem cells (BMSCs) and protein expressions of matrix metalloproteinase-2 and-9 (MMP-2 and MMP-9) in vitro.

METHODSBMSCs were in vitro isolated and cultured using whole bone marrow adherent method, and phenotypes [surface positive antigens (CD29 and CD90) and negative antigens (CD34 and CD45)] identified using flow cytometry. BMSCs were divided into the blank control group, 25, 50, 100 µmol/L ligustrazine group, and the GM6001 group (100 µmol/L ligustrazine +MMPs inhibitor GM6001 ). The migration of BMSCs was tested by Transwell chamber test and wound healing assay after treated with ligustrazine for 24 h. The protein expressions of MMP-2 and MMP-9 were detected by Western blot.

RESULTSThe third passage BMSCs grew well in uniform morphology. The expression rate of CD29, CD90, CD34, and CD45 was 96.9%, 97.3%, 0.2%, and 3.0%, respectively. Compared with the blank control group, the number of migrated cells and relative distance of cell invasion increased, and the protein expressions of MMP-2 and MMP-9 were elevated in each ligustrazine group (P < 0.05, P < 0.01). Compared with 100 µmol/L ligustrazine group, the number of migrated cells and relative distance of cell invasion decreased in 25 and 50 µmol/L ligustrazine groups and the GM6001 group (P < 0.01). Protein expression of MMP-2 decreased in 25 and 50 µmol/L ligustrazine groups (P < 0.01).

CONCLUSIONLigustrazine could promote the migration of BMSCs in vitro, and its mechanism might be related to up-regulating expression levels of MMP-2 and MMP-9 protein.

Cell Movement ; Cells, Cultured ; Hematopoietic Stem Cells ; cytology ; drug effects ; Humans ; Matrix Metalloproteinase 2 ; metabolism ; Matrix Metalloproteinase 9 ; metabolism ; Pyrazines ; pharmacology ; Up-Regulation

OBJECTIVETo study the effect of Buyang Huanwu decoction (BYHWD) inducing angiogenesis on the neuroblast migration from the subventricular zone and its mechanisms after focal cerebral ischemia.

METHODThe middle cerebral artery occlusion (MCAO) was performed to mice for 30 minutes to establish the model. The rats were divided into sham group, model group, BYHWD group and endostatin group. BYHWD (20 g x kg(-1), ig) and endostatin (10 μg, sc) were administered 24 h after ischemia once a day for consecutively 14 days. At 14 d after ischemia, the density of micro-vessel and the number of neuroblasts in the ischemia border zone were determined by immunofluorescence staining. The mRNA and protein expression of cell-derived factor-1 (SDF-1) and brain-derived neurotrophic (BDNF) were examined by real-time PCR and Western blot.

RESULTCompared with the model group, BYHWD significantly increased the density of micro-vessel and the number of DCX positive cells in the ischemia border zone (P < 0.01), and significantly increased the SDF-1 and BDNF mRNA and protein expression (P < 0.01). Compared with BYHWD group, endostatin significantly reduced the density of micro-vessel and the number of DCX positive cells in the ischemia border zone (P < 0.01), as well as the SDF-1, BDNF mRNA and protein expression (P < 0.01).

CONCLUSIONBYHWD could promote the neuroblast migration from the subventricular zone via inducing angiogenesis after cerebral ischemia, the mechanism may be correlated with up-regulating the expression of SDF-1 and BDNF.

Angiogenesis Inducing Agents ; pharmacology ; Animals ; Brain Ischemia ; pathology ; physiopathology ; Brain-Derived Neurotrophic Factor ; analysis ; genetics ; Cell Movement ; drug effects ; Cerebral Ventricles ; pathology ; Chemokine CXCL12 ; analysis ; genetics ; Drugs, Chinese Herbal ; pharmacology ; Male ; Mice ; Mice, Inbred ICR ; Neurons ; drug effects ; physiology

OBJECTIVETo investigate the efficacy and safety of the magnetic navigation system used in the real world percutaneous coronary artery intervention.

METHODSAll lesions detected by the coronary artery angiography in the magnetic-navigation catheter lab indicated for percutaneous coronary artery intervention (PCI) were included and treated under the guidance of the magnetic navigation system. The characteristics of the target lesion, process of the procedure, time and dosage of the X-ray exposure, and procedure-related complication were recorded and analyzed.

RESULTSOne hundred and twenty one patients with 138 lesions were recruited and intervened by PCI during the period from April 2006 to June 2008. Thirty lesions were classified as type A, 50 as type B1, 36 as type B2, 22 as type C (including seven total occlusions). The average stenosis of the target lesions was (85.3 +/- 10.0)%, mean length was (21.1 +/- 10.0) mm. Under the guidance of the magnetic navigation system, 134 target lesions were passed by the magnetic guide-wires, the lesion passing ratio was 97.1%. The X-ray exposure time, X-ray dosage and the contrast volume used during the period of the wire placement were (55.9 +/- 35.4) seconds, (98.0 +/- 86.1) mGy/(490.0 +/- 422.2) microGym(2) and (8.0 +/- 5.4) ml, respectively. A total of 164 stents were implanted in the vessels where the target lesions were passed by the magnetic wires. There was no magnetic navigation system associated complication. Magnetic guide-wires failed to pass four target lesions, two of which were chronic total occlusions (CTOs), and the other two were calcified subtotal occlusions.

CONCLUSIONSIt is feasible and safe to adopt the magnetic navigation system for the real-world coronary artery intervention. The magnetic guide-wire possesses a high lesion-passing ratio. The CTOs and calcified subtotal occlusions are not ideal lesions for use of the magnetic navigation system.

Aged ; Angioplasty, Balloon, Coronary ; methods ; Coronary Artery Disease ; therapy ; Coronary Vessels ; Female ; Humans ; Magnetics ; Male ; Middle Aged ; Surgery, Computer-Assisted

OBJECTIVETo investigate the characteristics of seroconversion of HBV NAT screening-positive crowd from blood donors in Dongguan city and provide reference for the safety of blood transfusion and disease prevention.

METHODSWith retrospective survey, Nucleic acid testing (NAT) was used to analyze 28800 HBsAg-negative samples by ELISA from blood donors in Dongguan city from August, 2006 to August, 2007 with Roche Cobas AmpliScreen systems; and follow-up research including NAT for HBV-DNA, ELISA for HBsAg and multiple factors analysis for HBV infection was carried out on HBV NAT screening-positive crowd.

RESULTS10 positive pooling were screened from 28800 samples; after further detection, 2 of these positive pooling were HBV-DNA negative and 8 HBV-DNA positive samples were found.The 10-week follow-up research on these 8 blood donors showed that 6 were HBV-DNA positive and HBsAg-negative at 2 weeks, 4 weeks, 6 weeks, 8 weeks, 10 weeks respectively, 1 was not HBsAg positive until 2 weeks and was positive on follow-up, and considered in "window period", 1 was HBV-DNA negative, HBsAg-negative on follow-up. Of these 8,7 were not only migrant laborers with poor condition of work, life and health but also in high risk of secondary infection for HBV, in addition they had little idea of therapy or prevention measures of HBV infection and the other 1 was HBV-DNA negative, HBsAg-negative on follow-up, who was in better condition than the above 7 donors.

CONCLUSIONNAT is more sensitive than ELISA in screening HBV, but the probability of being false positive of NAT can not be ignored at the same time. On the hand, only screening HBsAg for HBV is relative limitation in high infection region of China. Some factors would have effect on the serum conversion of blood donors including the quality of work and life, therapy or prevention measures.

Adult ; Blood Donors ; DNA, Viral ; blood ; genetics ; Enzyme-Linked Immunosorbent Assay ; Female ; Follow-Up Studies ; Hepatitis B ; blood ; diagnosis ; prevention & control ; Hepatitis B e Antigens ; blood ; Hepatitis B virus ; genetics ; immunology ; Humans ; Male ; Mass Screening ; methods ; Nucleic Acid Amplification Techniques ; methods ; Reproducibility of Results ; Sensitivity and Specificity ; Young Adult

BACKGROUNDSurgical treatment of insertional Achilles tendinopathy should be considered when a variety of conservative measures fail. To achieve a satisfactory outcome, thorough debridement of the Achilles tendon is critical, besides excision of the bursitis and the calcaneal exostosis. Central tendon-splitting provides straightforward access to the calcified or degenerative tissue within the Achilles tendon. For Achilles tendon reconstruction if detachment is present, several surgical techniques have been reported. Controversy surrounds the technique can provide maximum security for reattachment of the Achilles tendon. The SutureBridge double-row construct, initially used in rotator cuff repair, is probably a good choice.

METHODSTen consecutive patients with insertional Achilles tendinopathy underwent tendon reattachment using the SutureBridge technique through a central tendon-splitting approach. We retrospectively evaluated the surgical outcomes, which included pre- and postoperative visual analog scale (VAS), postoperative Maryland Foot Score (MFS), postoperative range of motion of the affected ankle, and related complications. Follow-up was performed in the outpatient department.

RESULTSOne patient was lost to follow-up. Nine patients (two male and seven female; 12 feet) were reviewed with a minimum follow-up of six months (range 6-30 months). The postoperative VAS pain scores were markedly lower than the preoperative scores. Postoperative MFS was 92.1±8.0 (range 74-100). No intra- or postoperative complications were found, except for one case of delayed healing incision. At last follow-up, all affected ankles achieved their normal range of motion, and patients were able to resume daily activities without any assistive device.

CONCLUSIONSAlthough a randomized control trial with a larger sample may be necessary to compare the central tendon-splitting combined with the SutureBridge technique with other techniques, our results confirmed that it was a promising alternative for treatment of insertional Achilles tendinopathy.

Achilles Tendon ; surgery ; Calcaneus ; surgery ; Female ; Humans ; Male ; Middle Aged ; Retrospective Studies ; Suture Anchors ; Tendinopathy ; surgery

OBJECTIVEThe aim of this study was to evaluate the effects of XRCCl gene polymorphisms and its haplotype on the susceptibility of pancreatic carcinoma.

METHODSPeripheral blood DNA was extracted from 210 pancreatic carcinoma patients and 213 control subjects. SNaPshot technique was used for genotyping seven SNP sites of the XRCCl gene (rs3213403, rs25487, rs1799782, rs731420, rs1001581, rs12611088, and rs3213282). Logistic regression model was performed to analyze the relationship of different genotypes or haplotype and the susceptibility of pancreatic carcinoma.

RESULTSThe frequency for allele A at site rs25487 in the case group was significantly higher than that in the control group (P < 0.05). The frequency of GG, GA and AA genotype between the case group and control group had statistically significant differences (P < 0.05). Compared with GG genotype, the risk of pancreatic carcinoma in the subjects carrying mutated allele A (GA+AA) was increased by 0.648 times (P < 0.05). Among them the pancreatic carcinoma risk of individuals carrying A allele was increased by 0.552 times compared with the individuals carrying G allele. The frequency of allele and genotype at site rs1799782 in the case group and control group had a significant difference (P < 0.05). Compared with the CC genotype, the risk of pancreatic carcinoma in the subjects carrying mutated allele T (CT+TT) was increased by 0.683 times. Among them the pancreatic carcinoma risk of individuals carrying T allele was increased by 0.549 times compared with the individuals carrying C allele. Significant differences were observed in linkage disequilibrium between any two of the seven SNPs (P < 0.05), the frequency of H4-AGCCCGC, H6-GGCCCGG or H7-AGCCTAG haplotypes was significantly lower in the case group than that in the control group (P < 0.05).

CONCLUSIONSThe single nucleotide polymorphisms of rs25487 and rs1799782 for XRCC1 gene may be correlated with the occurrence of pancreatic carcinoma. The haplotypes of H4-AGCCCGC, H6-GGCCCGG and H7-AGCCTAG might be a potential genetic protective factor for the occurrence of pancreatic carcinoma.

Alleles ; DNA-Binding Proteins ; genetics ; metabolism ; Genetic Predisposition to Disease ; epidemiology ; Genotype ; Haplotypes ; Humans ; Pancreatic Neoplasms ; epidemiology ; Polymorphism, Single Nucleotide ; X-Rays ; X-ray Repair Cross Complementing Protein 1

A new production method of fracture fixation splint is introduced in the paper. The basic raw materials are multi-isocyanic acid, mixed with surfactants, catalysts, fillers, and so on. The splint, with light weight, high strength, and good injured anastomosis site, could be able to shape easily. It is dry and comfortable, avoiding a gas-tight uncomfortable feeling, easy to remove, remodel, nurse, clean and disinfect after fixed. Patients also could film review directly with fixed splint.
Equipment Design ; External Fixators ; Fracture Fixation