Objective To evaluate the outcome of dorsal double locking compression plate (LCP) in treatment of stretched unstable distal radial fractures.Methods Fourteen cases of stretched unstable distal radial fractures were treated by reduction and internal fixation using straight or L-shaped anatomic LCP via dorsal approach.Wrist functional exercise was conducted immediately after operation.Follow up was made after operation to assess motion pain,functional score of wrist,and complication incidence at postoperative 12 weeks,24 weeks,and 1 year.Results Follow-up was lasted for 5-24 months.At postoperative 12 weeks,24 weeks and 1 year,mean visual analogue scale (VAS) was (1.88 ±0.26) points,(0.87 ± 0.14) points and (0.37 ± 0.06) points respectively and wrist functional score (Gartland-Werley score) was (6.45 ± 1.72) points,(2.73 ± 0.52) points and (2.10 ± 0.31) points respectively.According to Garfland-Werley score in the latest follow-up,the results were excellent in 10 cases,good in two,and fair in two.Besides,one case was combined with myotenositis of extensor pollicis longus muscle tendon and another case with myotenositis of extensor tendon.Conclusion Dorsal double LCP is one of the effective methods for stretched unstable distal radial fractures that can reconstruct anatomical structure of the wrist efficiently and attain satisfactory functional recovery,with no obvious pain.

Objective To evaluate the effect of anterior minimally invasive plate osteosynthesis (MIPO) for treatment of middle humeral shaft fracture.Methods From November 2011 to March 2014,10 cases of middle humeral shaft fracture were treated using MIPO via the anterior approach (MIPO group).Another 26 cases treated by open reduction and internal fixation (ORIF) of the middle humeral shaft fracture between October 2010 and March 2014 were included as controls (ORIF group).Fracture fixation using the 4.5 mm locking compression plate (LCP) was performed in both groups.Parameter measurements included operative time,intraoperative fluoroscopy times,grafting rate,intraoperative blood loss,postoperative drainage,hospital stay,bone healing time and complications.Results MIPO and ORIF groups differed significantly with respect to intraoperative blood loss [(93.5 ± 25.6) ml vs (325.3 ± 158.3) ml],intraoperative fluoroscopy times [(13.2 ± 6.1) vs 4.0 (0-6.0)] and hospitalization [(11.9 ± 1.7)days vs (18.0 ±4.7)days] (P ＜0.05).Bone grafting and drainage were not performed in MIPO group,while bone grafting rate was 54％ and postoperative drainage volume was (120.4 ± 69.6) ml in ORIF group (P ＜0.05).MIPO and ORIF groups were comparable with respect to operative time [(79.0 ± 22.0) min vs (97.5 ± 30.8) min],bone healing time [(15.2 ± 2.5) weeks vs (18.2 ± 4.8)weeks] and postoperative complications (10％ vs23％) (P＞0.05).Conclusion Anterior MIPO is an effective procedure for treatment of middle humeral shaft fracture,with advantages of small trauma,less bleeding,low risk of nerve injury and high rate of fracture healing.

Objective To investigate the effect of endothelial progenitor cells (EPCs) which complexed with neuron stem cells (NSCs) after transplanted into ischemia and reperfusion (I/R) rat model on the proliferation and apoptosis of the NSCs and vasal construction. Methods Totally 150 SD adult male rats were randomly and equally divided into 5 groups, sham-operation group, I/R group, I/R+NSCs group, I/R+EPCs group, and I/R+NSCs+EPCs group. The rats were further divided into 5 subgroups according to the time points of 3, 7, 14, 30 and 60 d after transplantation. I/R rat model was established by reversiblyligating middle cerebral artery occlusion. NSCs were derived from the hippocampus of SD rats born in 24 h and identified with Nestin staining. EPCs were obtained from the artery blood of SD rats and verified with immunocytochemical stainings of CD31, CD34 and KDR after culture. The complex of NSCs and EPCs was produced with aid of laminin. Then the complex were transplanted into the ischemia penumbra of corresponding model rat brain. The proliferation and apoptosis of NSCs, and the fomation of new vessels were observed through immunohistochemistry and double-labeled immunofluorescence staining. Results The proliferation of NSCs was increased, apoptosis cells were decreased and the new vessels were raised in the complex transplantation when compared with single NSCs or EPCs transplantation groups. Conclusion The complex of NSCs and EPCs transplantation improves the proliferation of NSCs, suppresses cell apoptosis and promotes the formation of new vessels.

Objective To explore the effect of the complex containing neuron stem cells(NSCs)and endothelial progenitor cells(EPCs)after being transplanted to ischemia and reperfusion rat model on the differentiation of neural stem cells to neuron and synapse formation.MethodsTotally 300 SD adult male rats were randomly divided into sham operation group,middle cerebral artery occlusion(MACO)model group,MACO+NSCs group,MACO+EPCs group,and MACO+complex group,and every group were further divided into 6 subgroups according to time points 1,3,7,14,30 and 60 d after operation,NSCs were isolated from the hippocampus of neonatal SD rats born in 24 h and identified with Nestin staining.EPCs were obtained from the artery blood of SD rats and verified with immunocytochemical stainings of CD31 and CD34 after culture.NSCs and EPCs were cultured together to produce the complex with aid of laminin.Then normal saline,the NSCs,EPCs,or complex(2?1010/L)were transplanted into the ischemia penumbra of corresponding model rat brain,sham control or MACO rats.The differentiation of NSCs,the expression of P38,synapsin-I,mRNA of connexin 43 were observed with double label immunofluorescence technique,immunohistochemical method,RT-PCR and Western blot analysis in ischemic penumbra.ResultsCompared with other groups,there were more double Brdu and neural special enolase positive cells in MACO+complex group with the increased expression of P38.RT-PCR and Western blot analysis indicated that MACO+complex group had significantly higher expressions of synapsin-I at mRNA and protein levels in ischemic penumbra,and so did the mRNA expression of connexin 43.ConclusionThe transplantation of the complex of NSCs and EPCs improves the NSCs differentiation to neuron,synapse formation and reconstruction of neural network.

Dihydroartemisinin (DHA),the major active metabolite of artemisinin,participates in tumor progression through the following ways:forming free radicals to induce cancer cells death dependent on iron,inducing apoptosis,inhibiting angiogenesis,tumor cells invasion and metastasis,modulating muhidrug resistance,controlling intracellular Ca2+ concentration,regulating cell cycles,cell autophagy and the immune system and so on.Generally,it is considered to be a potential anti-tumor drug.

Objective To discuss the clinical value of CT-guided percutaneous embedding of 125I seeds in combined chemotherapy with TP regime for non-small cell lung cancer(NSCLC). Methods Thirty two patients with NSCLC received CT-guided percutancous embedding of 125I particles, TP chemotherapy plan (paclitaxcl 135 mg/m2 /d1, cisplatin 75 mg/m2/d2 ～ 4 ) for four cycles after operation. The follow-up CT for observing therapeutic effects at 1, 3, 6, 12 month after 125I seeds implantation was undertaken. Results All cases were controlled effectively after one month revealed by CT follow up. The efficiency of tumor curing at 3, 6, 12 month were 87.5%, 90.63%, 92.31% respectively. None of the patients showed radiation injury and particle migration, and all of them had only slight side effects. Conclusion CT-guided percutaneous embedding of 125I seeds in combination with chemotherapy for non-small cell lung cancer is an effective and safe method, possessing valuable utilization clinically.

Objective An experiment study on the femoral head plastic operation to prevent and treat aseptic necrosis of the femoral head. Methods 60 Chinese white rabbits were equally random divided into 4 groups. The four groups except A group were made a globose defect and filled with 95% alcohol tampon for 30 minutes. The B group was natural repair group. The C group was filled with bone cement after being made defect. The D group was filled with bone cement added barium sulfate agent after being made defect. After 12 weeks, all rabbits in four groups were killed. The specimens were random divided into two parts. The articular cartilage was observed and measured immediately. The other specimen was determined with histological examination and extreme anti-pressure rigidity test . Result The femoral heads of bone cement group and the femoral heads of contrast agent bone cement group kept their outline all the time through the articular cartilage observation. After 12 weeks the cartilage thickness of natural repair group (511.74 ± 69.00) was thinner than the other three groups [ control group ( A group ) (511.74 ± 69 00 );Bone cement group ( C group) (468. 36 ± 82. 99 ); Bone cement group contrast agent ( D group ) ( 515.61 ±64. 65 ) ], and it had significant difference ( P < 0. 05, P < 0. 01 ). The rigidity of natural repair group [ (676. 57 ±50. 92) N/mm] had significant difference with that of the other three groups[ A group( 884. 66±52. 29)N/mm;C group(1178.40 ± 170.45) N/mm;D group(928.60 ± 104.42) N/mm] ( P <0.05, P<0. 01 ). Conclusions Femoral head plastic operation was simple and it could release pain. And femoral head outline could be kept integrity. It would be a new operation which was used to treat young patients in Ficat Ⅱ～Ⅲ period to postpone or substitute total hip replacement.

Muhidrug resistance (MDR) is one of the important reasons for the failure of clinical anticancer drugs,involving multiple mechanisms.Among them,the classical MDR mechanism mediated by P-glycoprotein (P-gp) is closely related to the formation of MDR,which can excrete intracellular chemotherapeutic drugs through the "drug pump" effect and significantly reduce the therapeutic effect.Curcumin is mainly extracted from the underground rhizome of Chinese medicine turmeric,with a wide range of pharmacological activity.Recent studies have found that curcumin also has a role in reversing the MDR of the tumor,by inhibiting both P-gp function and expression,and this process involves a variety of signal paths.

Objective To explore the correlation between exon region polymorphism of PPP1R3A gene and schizophrenia in Uygur Chinese population. Methods PPP1R3A gene exon region DNA amplification was performed using multiple PCR targeted capture next-generation sequencing method in 528 patients with schizophrenia and 576 healthy controls of Uyghur descent, Illumina HiSeq X Ten was used for sequencing, the symptoms of schizophrenia were assessed by positive and negative symptoms scale (PANSS). Results The allelic and genotypic distributions in rs1800000 of PPP1R3A gene between patients with schizophrenia and healthy controls had significant difference (P＜0.05), rs1799999 in genotype frequency between the female case and control groups showed significant difference (P＜0.05). Furthermore, the allelic distributions of rs8192686 between male cases and controls had significant difference (P＜0.05). Conclusion PPP1R3A gene rs1800000 may be associated with the development of schizophrenia in Uygur Chinese population; rs1799999 may be a risk factor for susceptibility of female Uygur Chinese schizophrenia; The C allele at rs8192686 may be associated with male Uygur Chinese schizophrenia.

The discovery of hydroxylases in the anticancer drug taxol biosynthesis pathway is a hotspot and difficulty in current research. In this study, a new hydroxylase gene TcCYP725A22 (GenBank accession number: MF448646.1) was used to construct a sub-cellular localization vector pCAMIBA1303-TcCYP725A22-EGFP to get the transient expression in onion epidermal cells. Laser confocal microscopy revealed that the protein encoded by this gene was localized in the cell membrane. Furthermore, the recombinant plant expression plasmid pBI121-TcCYP725A22 was constructed. After transient transformation to the Taxus chinensis mediated by Agrobacterium tumefaciens LBA4404, qRT-PCR and LC-MS were utilized to analyze the effects of TcCYP725A22 overexpression on the synthesis of taxol. The results showed that, in the TcCYP725A22 overexpressed cell line, expression levels of most defined hydroxylase genes for taxol biosynthesis were increased, and the yield of taxanes were also increased. It was concluded that the hydroxylase gene TcCYP725A22 is likely involved in the biosynthetic pathway of taxol.
Biosynthetic Pathways ; Mixed Function Oxygenases ; Paclitaxel ; Taxoids ; Taxus