OBJECTIVETo evaluate the clinical effects of minimal invasion and closed reduction with external fixation in treating elderly femoral intertrochanteric fracture.

METHODSFrom August 2007 and September 2013, 43 patients with elderly femoral intertrochanteric fracture were treated by minimal invasion and closed reduction with external fixation. There were 26 males and 17 females with an average age of 78 years old ranging from 68 to 92 years. Durations from injury to operation ranged from 1 to 8 days with an average of 3 days. According to AO classification, there were 22 cases with type A1, 15 with type A2, 6 with type A3. The time of bone healing were observed after operation and the clinical effects were evaluated by Harris scoring standard.

RESULTSAll patients were followed up from 10 to 18 months with an average of 13 months. The incisions obtained one-stage healing after removal of external fixation. All the fractures were healed and the mean healing time was 16 weeks (ranged, 12 to 18 weeks). Two patiens complicated with the thread needle loosening in the femoral trochanteric, 2 cases with the hip varus deformity and 1 case with the delayed union. No bone nonunion, external fixer breakage, blood vessel or nerve damage were found. According to the Harris scoring standard,the average Harris score of hip joint function was 85.89±7.36, and 18 cases got excellent results, 19 good.

CONCLUSIONMinimal invasion and closed reduction with external fixation can obtain satisfactory results in treating elderly femoral intertrochanteric fractures. It is a simple and effective method for elderly patients who cannot tolerate anesthesia and surgery trauma.

Aged ; Aged, 80 and over ; External Fixators ; Female ; Fracture Healing ; Hip Fractures ; surgery ; Humans ; Male ; Minimally Invasive Surgical Procedures ; methods

Objective To improve the efficienct of bone defect reparing,we produced a new shaped bone substitude.And we study the result from repairing rabbit radial segmental defect.Method Twenty mature rabbits were made segmental radial defect on both sides.15 received allogenic bone powder/FS/BMP in the left,and allogenic bone powder/FS in the right.5 samples received no implant in the left as control and allogenic bone powder/FS in the right.4,8,12 weeks after operation,result were assessed by gross,radiographic and histologcal examination.Result the study showed that allgonic bone powder/FS/BMP was much faster and better than allogenic bone powder/FS in repairing the defect(P<0.05),Conclusion It is suggest that allogenic bone power/fs/BMP is a kind of high bone induce ability ,shaped,and absorbable bone substitute.

Objective To evaluate the effect of progesterone (PROG) on promoting peripheral nerve collateral growth and nerve regeneration after terminolateral neurorrhaphy (TLN). Methods Thirty-six female SD rats were from nine to ten weeks old and weighed from 250 to 270 grams. They were randomly divided into two groups by different drugs they were administrated, the PROG group and the control group. Both groups were subdivide into three groups respectively, PROG four weeks group, PROG eight weeks group, PROG twelve weeks group, control four weeks group, control eight weeks group and control twelve weeks group. There were six subjects in every subgroups. First, both groups were performed ovariectomy. Then, two weeks later, TLN was operated. In the PROG group, the left peroneal nerve was transected, then an 1mm epineukral window was created on the neighbouring. The distal end of peroneal nerve was sutured to the windowed tibial nerve by means of end-to-side attachment. In the control group, nerve TLN was performed as in the PROG group, 0.2ml (10mg/ml) PROG and tea-oil (the solvent of PROG) was injected by subcutaneous injection for days in PROG group and control group respectively. Electrophysiological, histolgicial and morphological examinations were measured at 4,8, and 12 weeks after the operation. Results Regeneration of peroneal nerve occurred in both groups. All the data were analysed by factorial designed analysis of variance. The output demonstrated that there was a signficant difference in the quality of regeneration of peroneal between PROG group and control group (P

Objective:To study the dynamic expression of Nogo-A in hippocampus of rats after carbon monoxide poisoning,and to explore the effect and influence of Nogo-A in the damage to nervous system after carbon monoxide poisoning.Methods:Thirty male SD rats were randomly divided into NC group(n=6),CO group(n=6),CO-24 h group(n=6),CO-48 h group(n=6),CO-7d group(n=6).The method of injection CO gas was used to establish the carbon monoxide poisoning model.Then immunohistochemical (IHC) and Western blot (WB) techniques were used to observe dynamic expression of Nogo-A in hippocampus of rats at several time intervals after carbon monoxide poisoning and to analyze its change law.Results:IHC results showed that the average optical density value of expression of Nogo-A in NC group,CO group,CO-24 h group,CO-48h group and CO-7d group were 0.0928± 0.0038,0.01172± 0.0042,0.1452± 0.0056,0.1271 ± 0.0057,0.1088± 0.0055.WB results showed that the expression of Nogo-A in hippocampus after carbon monoxide poisoning was significantly higher than that in NC group(P＜0.05),and reached the highest level at 24 h,then had a gradual recovery after 24h.The expression of Nogo-A decreased obviously,but still higher than that of NC group by day 7 (P＜0.05).Conclusions:In this study,the increase of expression of Nogo-A was associated with carbon monoxide poisoning.The expression of Nogo-A reached the highest level at 24h,then had a gradual recovery after 24 h.

Analogous formulae (AF) refer to a set of traditional Chinese medicine (TCM) formulae sharing similar herbs and/or indications. Dissecting functional chemome of analogous formulae could enhance the understanding of the intrinsic nature of TCM. In this study, taking 5 Xiaoqinglong decoction analogous formulae (XQL AF) including Xiaoqinglong decoction, Mahuang Xingren Shigao Gancao decoction, Mahuang Fuzi decoction, Houpu Mahuang decoction and Daqinglong decoction as example, we systematically investigated the relationship between compounds and indications using network formulaology approach. The functional chemome of XQL AF were revealed by network analysis and molecular docking. This successful application in XQL AF suggests network formulaology could be a useful tool for AF-related research and therefore provide a new way to discover the scientific foundation of Zhang Zhongjing's herbal formulae.
Chemistry, Pharmaceutical ; Drugs, Chinese Herbal ; analysis ; Medicine, Chinese Traditional ; Molecular Docking Simulation

Objective To evaluate the effects between video endoscopic inguinal lymphadenectomy (VEIL ) and open inguinal lymphadenectomy(OIL) to provide the evidence-based basis for the selection of the clinical therapy schemes .Methods The related clinical controlled trial literature on the effective comparison of VEIL and OIL were retrieved from the databases of PubMed ,Co-chrane library ,Elsevier ,CNKI and Wanfang database .The screening was independently performed by 2 reviewers according to the including and excluding criteria .The related data were extracted and performed the meta analysis by the RevMan 5 .2 software .Re-sults A total of 4 trials were included .There were 146 cases of inguinal lymphadenectomies ,in which 61 cases were VEIL and 85 cases were OIL .The meta-analysis results showed that there were no statistical differences between the two operation modes in terms of the operative time(WMD=32 .33 ,95% CI -25 .70-90 .36 ,P=0 .27) ,intraoperative blood loss(WMD=9 .10 ,95% CI -76 .03-94 .23 ,P=0 .83) ,number of removed lymph nodes(WMD=0 .77 ,95% CI -1 .66-3 .20 ,P=0 .53) ,number of positive re-moved lymph nodes(WMD=0 .08 ,95% CI -0 .23-0 .40 ,P=0 .61) ,postoperative drainage time(WMD= -1 .30 ,95% CI -6 .40 -3 .80 ,P=0 .62) ,postoperative hospital stay (WMD= -4 .02 ,95% CI -10 .19-2 .15 ,P=0 .20) ,but the difference between VEIL and OIL in term of surgical complications had statistical significance (OR=0 .08 ,95% CI 0 .03-0 .26 ,P<0 .01) .Conclusion VEIL has equivalent efficacy to OIL ,but has less surgical complications .

BACKGROUND:To study the phenotypes of side population cells in leukemia is important for understanding the heterogeneity and origin of tumor cells, molecular markers and targeted therapy.
OBJECTIVE:To identify whether the human chronic myeloid leukemia cellline-K562 contains side population cells or not, and to further observe the differences in expressions of leukocyte differentiation antigens from side population cellsubset and non-side population cells subset.
METHODS:Flow cytometry was used to detect whether there were side population cells in the K562 celllines. Then, the expression of CD34+, CD34+CD38-, CD34+CD38+, HLA-DR+cells in the side population subsets and non-side population subsets.
RESULTS AND CONCLUSION:Flow cytometry results showed that the K562 cellline contained side population cells, and the proportion of side population cells was much lower. The side population cells accounted for (2.7±0.5)%of viable cells in K562. The expressions of CD34+cells and CD34+CD38-cells in the side population subset were significantly higher than those in the non-side population subsets. The expressions of CD34+CD38+cells and HLA-DR+cells in the side population subset and non-side population subset did not have a significant difference. Heterogeneity was found in the differentiation antigen expression between the side population subset and non-side population subset.

Objective To determine the variation of bone mineral density(BMD)and bone mineral content (BMC)in cadaveric lumbar vertebrae and investigate their significance in determining fracture modes and biomecha- nical properties.Methods The lumbar motion segments of the spines of 19 cadavers(mean age:56 years)were compressed to failure.The BMD and BMC of the cranial and caudal endplates were determined,along with the BMD and BMC of the upper and lower 1/3 transverse sub-endplate layers and the middle 1/3 transverse layer.The anteri- or,middle and posterior 1/3 vertical parts,anterior and posterior 1/2 vertical parts and the whole BMD and BMC were measured by using dual energy X-ray absorptiometry as well.All the data were analyzed statistically.Results Among the 19 segments,macrography after dissection revealed that 16 had been fractured,about 84.2%.The frac- ture always occurred in the centre or in the anterior part of the endplate.Within a vertebral body,the BMD and BMC of the cranial endplate were less than those of the caudal endplate,and the cranial 1/3 transverse layer and middle layer had lower BMD and BMC readings than the caudal layer.For the vertical region,from the anterior 1/3 to the posterior 1/3,or from the anterior 1/2 to the posterior 1/2,the BMD and BMC increased.For the endplate around the disc,the BMD of upper endplate was higher than that of the lower one,but the BMCs were equal.In one motion segment,the failure load correlated positively with BMD,and with the BMC of the endplate and the sub-endplate bone.Conclusion The variations in BMD and BMC within a vertebra and around a disc can explain why vertebral fractures are concentrated on the upper endplate,and why compressive fractures are always wedge-shaped.This un- derstanding can assist in the placement of inter-vertebral spacers.

NDV strain ZJ1 strain , a highly virulent NDV strain, has been prevalent among the waterfowls in China mainland in the past years. Multi-basic amino acid sequence distribute in the protease cleavage site of F protein of this strain. Recombinant expressing plasmid pCI-FT, was generated by converting multi-basic amino acid sequence of 112, 115, 117 of the protease cleavage site of F_ 0 protein, to the non-basic amino acid sequence characteristic of avirulent NDV strain. The result from co-expression of mutant or parental F protein with homologous HN protein in COS-1 cells revealed that both mutant and parental F protein had fusion activity. The result from co-expression of mutant or parental F protein with homologous HN protein in CEF cells showed that the cleavage activity of mutant F protein was significantly reduced. The study built a foundation for mutagenesis of amino acid sequence of the protease cleavage site of F_ 0 protein at the full-length cDNA clone level, study on factors contributing to virulence and construction of candidate vaccine strain, and so on.

K21. The mean t1/2(?) was (2.7?0.4) h, Vd was about 11.18 L?kg-1.The C-T profile conformed to two compartment open model. The plasma Dau concentration-time curves showed a double-peak phenomenon in all dosages of all dogswhen dauricine was given by intragastric was.The tpeak(1) was (0.8?0.6) ～(1.2?0.5) h,tpeak(2) was (5.2?3.2) ～(6.5?1.9)h,Cmax(2) 0.05) and the AUC was increased in proportion.The drug is eliminated non-linearly when the dosage is above 50 mg?kg-1, the parameters t1/2(el),CL, AUC/X0 shows great difference (P