0.05). Conclusion:The stress reaction to human injury stimulation are inhibited effectively by propofol - fentanyl intraveous anesthesia

Objective To study the effects of profound hemodilution with 6% HES (200/0.5) on coagulation.Methods Ten male new Zealand long-ear rabbits weighing (2.43 ?0.19) kg were anesthetized with intravenous thiopentone 8 mg-1 and tracheotomized and mechanically ventilated (VT = 15 ml-1 , RR = 24 bpm) . Anesthesia was maintained with intravenous infusion of thiopentone and succinylcholine. Femoral artery and vein were cannulated for BP and CVP monitoring. Hemodilution was performed in 6 steps at 30 min intervals. Blood was withdrawn from artery and simultaneously replaced by intravenous infusion of equal volume of 6% HES until Hct was 5 % -8 % . Blood samples were taken before hemodilution and 30 min after each step of hemodilution for determination of coagulation function curve using Sonoclot coagulation and platelet function analyzer. Results When Hct was 25%-30% there was no significant difference in coagulation function before and after hemodilution. When Hct was 15%-20% there was significant difference in ACT, TTP, clot rate and MCS before and after hemodilution but the normal coagulation process was not affected. When Hct

Objective To construct the recombinant adeno-associated virus vector with human preproenkephalin gene (rAAV-hPPE). Methods The human preproenkephalin (hPPE) gene was cloned into the adeno-associated virus (AAV) vector plasmid pSNAV which contained neo expression box. The recombinant pSNAV-hPPE was then transfected into BHK cells using lipofectamine?2000. The G418-resistant cells, BHK / SH1, were obtained. The BHK / SH1 cells were infected with HSV1-rc /△UL2 which has the function of packaging the recombinant AAV(rAAV) . After purification, the construction of rAAV-hPPE was achieved.Results The construction of pSNAV-hPPE was confirmed by digestion with restriction enzyme. Southeon bolting was used to detect the virus liters (2.5 ? 1212 v.g /ml) .Conclusion This rAAV-hPPE virus vector with high liter and strong infectivity can be used in transgenic analgesic research.

Objective To study the pattern of cerebral gray matter and white matter volume changes among smokers with differ-ent level of nicotine dependence (addition)using voxel-based morphometry (VBM).Methods The current case-control study recrui-ted 53 healthy male smokers and 53 healthy non-smokers from outpatients of our hospital during January 2013 to May 2014.Personal information (including for example age,sex and addition dependence of subjects)was collected using a questionnaire.3D-T1 images of whole brain structure were collected and were analyzed using DARTEL toolbox of SPM8.Smokers were divided into mild to mod-erate nicotine dependence group (n=23)and severe nicotine dependence group (n=30)based on Fagerstr?m Test for Nicotine De-pendence (FTND)score.Independent sample t-test analyses were performed to compare the volumes of gray matter and white mat-ter between smokers with different levels of nicotine dependence and non-smokers.Results Compared with non-smokers,gray and white matter volumes of smokers were smaller in multiple brain areas,mainly in the middle occipital gyrus,posterior cingulate,cer-ebellum anterior lobe,precuneus,caudate body and insula,which however,had larger number and scope of focal areas with gray and white matter atrophy in the mild to moderate nicotine dependence group than that in the severe nicotine dependence group.Conclusion Smokers with mild to moderate nicotine dependence have more pronounced gray and white matter atrophy than that smokers with severe nicotine dependence have.

To construct an immortalized rat astrocyte strain genetically modified by rat preprogalanin gene (IAST/GAL) and detect its galanin (GAL) expression and secretion, a cDNA fragment of rat GAL in plasmid of pBS KS(+)-GAL was inserted into eukaryotic expression vector pcDNA3.1 (+) by DNA recombinant technology, then the restriction enzyme digestion and DNA sequencing were carried out to evaluate the recombinant. The pcDNA3.1 (+)-GAL and pcDNA3.1 (+) construct were transfected into immortalized rat astrocyte strain (IAST) by lipofectamine and the population of cells which stably integrated the construct was selected with 600 microg/mL G418. Individual clones were screened and expanded into clonal cell strains. Detection of Neo gene was used to validate the success of the transfection. Immunocytochemical staining, RT-PCR and radioimmunoassay were used to detect the expression and secretion level of GAL. The recombinant had been successfully constructed by restriction enzyme digestion and DNA sequencing. Detection of Neo gene showed that the pcDNA3.1 (+)-GAL and pcDNA3.1 (+) have been successfully transfected into IAST. After selection by using G418, IAST/GAL and IAST/Neo cell strains were obtained. IAST/GAL, IAST/Neo and IAST were immunostained positively for GAL, but the GAL average optical density of IAST/GAL was significantly higher than that of IAST/Neo and IAST (P< 0.01). The level of GAL mRNA expression and the supernatant concentration of GAL in cultured IAST/GAL were significantly higher than those of IAST and IAST/Neo (P<0.01), but no significant differences were found between the IAST and IAST/Neo (P>0.05). It was concluded that IAST/GAL strain was constructed successfully and it might provide a basis for the further study of pain therapy.
Astrocytes/cytology ; Astrocytes/*metabolism ; Cell Line, Transformed ; Cells, Cultured ; Galanin/*biosynthesis ; Galanin/genetics ; Genetic Vectors ; RNA, Messenger/biosynthesis ; RNA, Messenger/genetics ; Recombinant Proteins/biosynthesis ; Recombinant Proteins/genetics ; Transfection

OBJECTIVETo study the clinical efficacy of semiextended intramedullary nailing of the tibia using a suprapatellar approach for proximal tibial fractures.

METHODSFrom January 2013 to January 2014, a total of 16 patients with unilateral proximal tibial fractures, 14 males and 2 females, underwent closed reduction and internal fixation with TRIGEN™ META-NAIL™ via the suprapatellar approach. The average age was 42.2 years old (ranged, 26 to 57 years old). Radiographic and clinical follow-up examinations were performed at a minimum of 1 year after surgery. Measurements included surgery time, complications, bone healing time, tibial alignment, knee range of motion, pain scoring (visual analogue scale) and functional outcome (Lysholm knee score).

RESULTSThe average surgery time was (75.7±8.3) minutes (ranged, 65 to 95 minutes). No obvious complications were recorded. Average duration of follow-up was (15.6±8.1) months (ranged, 12 to 24 months). Fifteen patients attained radiological bone union for a mean time of (3.6±1.8) months (ranged, 3 to 5 months). At the final follow-up, all tibial alignments were good, and no patients complained of anterior knee pain. Mean arc of knee motion was (124.4±18.8) degrees for the affected extremity compared with (127.5±16.7) degrees for the contra-lateral knee. The total scores of Lysholm knee score ranged from 77 to 92, average 86.4±12.3.

CONCLUSIONFor proximal tibial fractures,the semiextended intramedullary nailing technique via a suprapatellar approach can obtain satisfactory clinical outcomes with simplicity in reduction and fixation, minimal complications, and good recovery of limbs function.

Adult ; Female ; Fracture Fixation, Intramedullary ; methods ; Humans ; Male ; Middle Aged ; Tibia ; surgery ; Tibial Fractures ; surgery

A solution with different Cu supply levels was cultured to investigate gama-aminobutyric acid (GABA) accumulation in Elsholtzia splendens, a native Chinese Cu-tolerant and accumulating plant species. Increasing Cu from 0.25 to 500 micromol/L significantly enhanced levels of GABA and histidine (His), but considerably decreased levels of aspartate (Asp) and glutamate (Glu) in the leaves. The leaf Asp level negatively correlated with leaf Cu level, while leaf GABA level positively correlated with leaf Cu level. The leaf Glu level negatively correlated with leaf GABA level in Elsholtzia splendens. The depletion of leaf Glu may be related to the enhanced synthesis of leaf GABA under Cu stress.
Copper ; toxicity ; Dose-Response Relationship, Drug ; Drug Tolerance ; physiology ; Gene Expression Regulation ; drug effects ; Lamiaceae ; drug effects ; metabolism ; Plant Leaves ; drug effects ; metabolism ; gamma-Aminobutyric Acid ; metabolism

Objective To determine the effect of omental flap wrapping of pancreaticoduodenectomy on postoperative pancreatic fistula and intra-abdominal bleeding in patients undergoing pancreaticiduodenectomy through meta-analysis of published studies.Methods Articles about whether omental flap wrapping could prevent postoperative pancreatic fistula and intra-abdominal bleeding were searched in databases of MEDLINE,PUBMED and EMBASE.14 English article were found and according to including and excluding criteria,4 eligible articles with a total of 2971 patients were selected.Random effects model was used to analyze odds ratios and 95％ confidence intervals (CIs).Results 1129 patients were in omental wrapping group,and 1842 patients in nonomental wrapping group.Omental roll-up during pancreaticoduodenectomy could not prevent postoperative pancreatic fistula (OR =0.81,95 ％ CI 0.40～1.63,P＞0.05) or postoperative abdominal bleeding (OR=0.67,95％ CI 0.28～1.59,P＞0.05).The sensitivity analysis showed the pancreatic fistula rate was lower in the nonomental roll-up group than that in the omental roll-up group (OR=1.24,95％ CI 1.03～1.50,P＜0.05).Conclusions Omental wrapping can not decrease the risk of pancreatic fistula and abdominal bleeding after pancreaticoduodenectomy.Further randomized controlled trials are needed to identify the effect of omental wrapping technique for pancreaticoduodenectomy.

Objective To investigate the effect of microbubble-enhanced non-focused ultrasound on liver uhrastructure during the treatment of hepatic trauma.Methods The model of hepatic trauma was established in 18 healthy New Zealand rabbits.The subjects were divided into trauma group,ultrasound group and ultrasound-microbubble group according to the random number table,with 6 rabbits each.Thicker region of the left hepatic lobe was treated by custom-made non-focused ultrasound for 5 min.Peak intensity (PI) was used to evaluate the blood reperfusion of the target region after treatment.Liver specimens were performed transmission electron microscope examination immediately and 24 h after treatment to analyze ultrastructure changes.Results PI ratio in ultrasound-microbubble group (15.1 ± 2.6) was significantly lower than that in trauma group (23.1 ± 1.1) and ultrasound group (23.4 ± 1.3) (P ＜ 0.05).But the difference between trauma and ultrasound groups was insignificant (P ＞ 0.05).Compared with trauma and ultrasound groups immediately after treatment,hepatic cells in ultrasoundmicrobubble group had obvious edema,sinusoids thinned,organelles arranged in disorder,mitochondrial edema was present,endothelia cells of interlobular hepatic artery,interlobular vein and bile canaliculi in the portal area damaged,and microvilli of bile canaliculi disappeared.Hepatic cells showed morphology of apoptosis 24 h after treatment.Conclusion Microbubble-enhanced non-focused ultrasound can be used to make rapid hemostasis by decreasing the blood perfusion,but it causes certain damage to the ultrastructure of hepatic cells and may induce apoptosis in the radiation zone and neighboring cells.

Objective:To explore the psychological and behavioral pattern of state speech anxiety of participants of college speech contest under two conditions.Methods:Narrow band measurements of both Subjective Uncomfortable Degree(SUD)and objective behavioral assessments were used under two conditions.Results:Under lab condition,SUD rat-ings differed among four time bands,while the behavioral ratings failed to show any difference.Under field condition,for the prepared theme speech,SUD ratings differed among four time bands while they failed to show any difference for the improvisational speech.For both speech forms,several behavioral items displayed a pattern of habituation.Conclusion:Under both conditions,the psychological and behavioral pattern of participants' state speech anxiety display a pattern of habituation while the behavioral pattern is affected more by different conditions.