Objective To investigate endoscropic assist in rat orotracheal intubation.Methods 40 rats were randomly divided into two groups.The procedure time, total time, intubation frequency,the success rate of the first intubation and the survival rate in 24h were compared between the conventional group and the endoscropic group.Results The total time in two groups were nearly the same.But the procedure time and frequency of intubation were significantly less in the endoscropic group than those in the conventional group.The success rate of the first intubation in the endoscropic group was obviously higher than that of the conventional group.There was no obviously difference between the survival rate after extubation in 24h between groups.Conclusion Endoscropic assist is superior to the conventional method and worth promoting.

Objective To explore the optimal method of extraction and determination of rhynchophylline and isorhynchophylline in Ramulus Uncariae cum Uncis. Methods A RP-HPLC was performed on a Phenomenex C18 column (4. 6 mm× 150 mm, 5m) at 30℃. The mobile phase consisted of methanol-0. 01 mmol/L triethylamine solution (70: 30, pH 7.0 adjusted by glacial acetic acid) at the flow rate of 0. 5 mL/min. The automatic sample injector was set at 5℃ and the ultraviolet detector was operated at 245 nm. And then, the effect of different extraction condition on the contents of rhynchophylline and isorhyn-ehophylline in Ramulus Uncariae cum Uncis was investigated. ResultsA good linearity of rhynchophylline was in the range of 2. 5μg/mL to 80. 0μg/mL (Y=76. 7170X-0. 0727,r=0. 999 8),the average recoveries were from 99. 84 ％ to 116. 91％, and the RSD (n=6) were less than 8.8 ％. A good linearity of isorhynchophylline was in the range of 2. 0 μg/mL to 80. 0 μg/mL (Y=87. 4729X-0. 3666, r=0.999 7), the average recoveries were from 87.08 ％ to 104. 97 ％, and the RSD (n=6) were less than 7.3 ％. The contents of rhynchophylline and isorhynchophylline in the methanol-extracted solu- tion were approximately ten times as much as those in water-decocted solution. The main factors which had effect on the ex-traction of rhynchophyUine and isorhynchophylline in methanol solution were supersonic time,methanol amount and cold-dousing time, in a decreasing sequence. The best condition selected by orthogonal experiment wasb as follows: extracting the medicinal material with 20-fold volumes of methanol, cold maceration for 24h and supersonic extraction for 1 h. Conclusion The extraction percentage of rhynchophylline and isorhynchophylline in the extraction condition of cold maceration with methanol and supersonic extraction is superior to that in the water-decocting condition. The method is simple, fast and accurate, and it can be used for the quality control of Ramulus Uncariae cum Uncis.

This paper presents the general principles and usual problems involved in the development of Institutional Review Board in research institutions. And suggestions are made in this regard. Meanwhile, it discusses two common difficult issues involved in ethical review.

Adult ; Aged ; Aged, 80 and over ; Case-Control Studies ; Female ; Humans ; Male ; Middle Aged ; Multiple Myeloma ; blood ; diagnosis ; therapy ; Phosphopyruvate Hydratase ; blood ; Prognosis

Objective To investigate the methods and results of reverse island flap of the adjacent digit pedicled with the Y-V vascular of digital artery by anastomosis of superficial veins for repairing soft tissue defects of the fingers.Methods From March 2009 to June 2011,twenty cases with soft tissue defect distal to the proximal interphalangeal join of fingers were treated by reverse island flap of the adjacent digit pedicled with the Y-V vascular of digital artery by anastomosis of superficial veins.There were 12 cases of the index finger,eight of middle finger,the largest area of the flaps was 4.5 cm × 3.5 cm,and the smallest area was 3.5 cm × 2.5 cm,an average of the pedical length was 4.0 cm.All cases anastomosis one superficial vein,fourteen cases suture dorsal digital nerve,and the donor area covered with full-thickness skin graft.Results All flaps survived.Postoperative follow-up time ranged from 8 to 16 months,the appearance and texture of the flaps were excellent,the flaps with suture nerves,the two-point discrimination was 7 mm to 9 mm,the other flaps that the nerves were disconnected.The sensation of the flaps recovered to S2-S3,no morbidity of the donor fingers occurred.Conclusion Reverse island flap of the adjacent digit pedicled with the Y-V vascular of digital artery by anastomosis of superficial veins can form a longer vascular pedicle,to repair the soft tissue defect distal to the proximal interphalangeal joint,through anastomoses superficial venous can reduce the flap venous pressure obviously,improve the survival quality of the flap,the effect is satisfacted.

Objective To establish a rat model of liver metabolism profile in chronic heart failure (CHF), to explore the dynamics of liver metabolism in CHF from the point of view of metabolism, and to find the characteristic metabolites valuable for the molecular mechanism and management of CHF.Methods Twenty male Wistar rats were assigned to the CHF group to receive aortic coarctation or to the control group to receive sham surgery, and were bred for 24 weeks following surgery.The metabolic profiling of the rat liver tissues was analyzed on a metabonomics research platform. Orthogonal partial least squares-discriminant analysis ( OPLS-DA) model and principal component analysis ( PCA) model were established for liver tissues of the CHF rats, and the characteristic metabolites were finally derived by data processing with SPSS 19.0 software.Results The PAC and OPLS-DA models were established successfully.Ten characteristic metabolites with significant differences between the CHF and control groups, including lysophosphatidyl choline, lysophosphatidyl ethanolamine, oleic acid, glycocholic acid, and dehydroepiandrosterone sulfate, were screened and identified from the models.Conclusions The metabolic disorders in CHF rats are well fitted to the established metabolic profile models, and these identified characteristic metabolites may provide reference for the pathophysiological molecular mechanism and management, etc., of chronic heart failure.

Objective To investigate the in vitro effect of wild-type PTEN gene transfection on the growth of human colon cancer cell lines. Methods With liposome transduction technique,the retrovirus vector pBp-PTEN,which contains wild-type PTEN gene segment and pBabe-puro,was transfected into Lovo,one of the PTEN-deficient human colorectal carcinoma cell lines.After identification by Western blotting,cell growth,cell cycle and apoptosis before and after transfection were studied. Results It was indicated by the cell growth curve that after transfection the curve of the transfection group exhibited a mild tendency with no obvious logarithmic growth phase,and the growth velocity was significantly lower than that of the control group(P

Objective To investigate the method and result of repairing multi-fingers soft tissue defects using the dorsal metacarpal flaps with cutaneous branches as pedicle.Methods From February,2010 to January,2013,9 patients with multi-fingers tissue defects were treated with the 2nd,3rd,4th dorsal metacarpal flaps with cutaneous branches as pedicles.The area of flaps ranged from 1.2 cm × 2.5 cm to 2.5 cm × 5.0 cm.The donor sites were sutured with full thick skin graft.Results All flaps survived.After a followed-up of 8 months to 24 months(average 12 months),the texture and shape of the flaps were good and non-bloated.The flap sensibility as sessment were S3-S3+.The two-point discrimination testing were 10 to 13 mm (average 11.6 mm).The TAM score of range of motion was 60％ to 75％ of the healthy side.The skin graft of donor site were soft.Conclusion Procedure of dorsal metacarpal flaps with cutaneous branches as pedicles easy is a good method to repaire the soft tissue defects of muhi-fingers.

Objective To evaluate the injury of unilateral testicular torsion on the contralateral testes with contrast-enhanced ultrasound.Methods Twenty-eight male rabbits were enrolled in this study.They were randomly divided into the control group,the detorsion after 3 hours group,the detorsion after 6 hours group,the detorsion after 24 hours group and the permanent torsion group.There were 8 rabbits in the control group,and 5 rabbits in each of the other groups.Just before torsion,immediately after torsion,just before detorsion,immediately after detorsion,and delay(6-12 hours after detorsion.the permanent torsion group was also at the corresponding time),contrast-enhanced ultrasound was used to observe the perfusion of contralateral testes.The control group was also performed contrast-enhanced ultrasound just before the shame operation and immediately after that.The time-intensity curves were draw according to the contrastenhanced ultrasound images.The parameters including arrival time(AT),time to peak intensity(TTP),peak intensity(PI),half time of descending peak intensity(HT)were yielded automatically,and the changes of them were analyzed.Results①There was no significance of enhancement AT,TTP,PI,and HT between pre-operation and post-operation in the control group(P＞0.05).②When the parameters of immediately after torsion compared with those of before torsion in the groups of torsion,the perfusion was increased significantly displaying by PI increasing(P＜0.05).③The longer time the duration of unilateral testicular torsion,the more obviously the perfusion of the contralateral testes increased.Conclusions The timeintensity curve of contrast-enhanced ultrasound is valuable in assessing of the injury of unilateral testicular torsion on the contralateral testis.