Objective To quantize the synergistic force in movement of upper limbs between shoulders and elbows. Methods The trans-verse forces of elbows and shoulders during movement were recorded in a healthy adult with an upper-limb-force-measuring plate form which comprised of 2 three-dimensional force sensors, respectively. Then he performed shoulder abduction/adduction and elbow extension/flexion at 100%, 75%, 50%and 25%of the maximum contraction force, respectively. The ratio of the active action force and the joint action force (named assessment index) was used to assess the synergistic degree of the forearm and the upper arm. Results In the shoulder abduc-tion motion, the assessment index decreased as the strength of active action decreased, meant interference of joint action increased. Howev-er, it was almost stable in the shoulder adduction, increased in the elbow extensionas, and was irregular in the elbow flexion, as the active ac-tion strength decreased, respectively. Conclusion It may be more difficult to control upper arm than the forearm.

Objective To analyse the effects of serum estradiol levels during controlled ovarian hyperstimulation (COH) on the outcomes of in vitro fertilization and embryo transfer (IVF-ET). Methods The clinical data of 472 patients undergoing IVF-ET with GnRH analogues recombinant FSH long protocol were retrospectively analysed. The area under the curve (AUC) of estradiol (E2) level was calculated during COH, and patients were categorized into groups according to the percentile of AUC of E2(AUCE2) during COH. The general characteristics and parameters related to the outcomes of IVF-ET were compared among groups. Results The 10th percentile and 90th percentile of AUCE2 were 3 347.0 pmoL/L and 14 414.3 pmol/L, respectively. Four hundred and seventy-two patients were divided into lower reaction group (AUCE2 3 347.0 pmol/L, n=48), normal reaction group (14 414.3 pmol/L>AUCE2 > 3 347.0 pmol/L, n=376) and higher reaction group (AUCE2≥14 413.3 pmol/L, n=48). There was no significant difference in age, body mass index, baseline follicle stimulating hormone level, time of treatment with gonadotropin, endometrium thickness on day of transfer and embryos transferred(P>0.05). Compared with lower reaction group and normal reaction group, the number of oocytes per retrieval and number of embryos frozen were significantly larger(P<0.01) and the mild/severe ovarian hyperstimulation syndrome rate was significantly higher in higher reaction group(P<0.05). There was no significant difference in fertilization rate, cumulative embryo score, high-grade embryo rate, clinical pregnancy rate and implantation rate among groups (P> 0.05). Conclusion Sustained snpraphysiological serum E2 levels during the COH process do not adversely affect the quality of oocytes and embryos, clinical pregnancy rate and implantation rate to some extent in IVF-ET.

The international prognostic index (IPI) has been established as one of the best predictors of outcome, and several different immunologic subtypes have been established as independent predictors of diffuse large B-cell lymphoma (DLBCL). This study was aimed to reassess and re-evaluate the useful value of these prognostic predictors in patients treated with immunochemotherapy. A retrospective analysis of clinical records of immuno-chemotherapeutic (rituximab + CHOP, R-CHOP) and route chemotherapeutic (CHOP) groups was carried out. Standard two-step method of immunohistochemical staining was used to assess the expression of CD10, MUM-1, BCL-6 and BCL-2. The different classification models (Han's algorithm and Muris model) were performed for patients with DLBCL according to the immunohistochemical staining results in both R-CHOP and CHOP regimen groups. Then the data of remission and overall survival rate in different groups were analyzed to investigate the effect of these prognostic factors. Total 126 de novo DLBCL patients were collected in this study, including 51 patients with treatment of R-CHOP and the other 75 patients with treatment of CHOP. The results showed that the R-CHOP group had higher complete remission rate (68.8) than CHOP group (58.7). The patients with IPI score ≤ 2 had significantly higher overall response rate and overall survival rates than the patients with IPI scores > 2 in both groups. The survival rates of different subtypes in Han's and Muris models were not different from each other in R-CHOP group, but were obvious different from each other in CHOP group. It is concluded that IPI is still effective and predictive for identification of different risk groups. Immunochemotherapy can improve the remission and overall survival rate of DLBCL, but weaken the effect of outcome predictor.
Adult ; Aged ; Aged, 80 and over ; Antibodies, Monoclonal ; therapeutic use ; Female ; Humans ; Immunotherapy ; Lymphoma, Large B-Cell, Diffuse ; diagnosis ; mortality ; therapy ; Male ; Middle Aged ; Prognosis ; Retrospective Studies ; Survival Rate ; Treatment Outcome

Objective To investigate the dynamic distribution changes of fungi responsible for the deep infection and antifungal susceptibility to provide a basis for the empirical antifungal treatment.Methods Medical records were reviewed from cases suspectedof deep fungal infection at our hospital from January 1998 to December 2004.3122 isolates of 13 species were analyzed with SPSSll.0.Etest was used for the antifungal susceptibility test.Results Candida albicans was the most commonly isolated organism,while the prevalence of Candida albicans decreased(76.3% vs 66.8%,x~2=34.33,P

0.05).And the increasing of weight in high protein+plus prolein jelly group was significantly higher than those of other two groups(Pa

Objective To observe the effect of liver disease special-purpose enteral nutrition preparation on protein metabolism and liver function in children with liver injury.Methods Sixty cases of severe ill with liver injury in hospital,with mean age of (7.8?6.3) years old.All patients were randomly divided into experimental group (n=30) and control group(n=30).The experimental group was treated by adding the liver disease special-purpose enteral nutrition preparation homogenized diet and control group was treated by adding entire protein entire nutrition type enteral nutrition preparation.All patients in both 2 groups were nasally fed with intestinal nutrition,which contained 418-628 kJ/(kg?d).One day before nutritional support and 14 days after nutritional support,the liver function,total serum protein,albumin,hemoglobin were recorded.SPSS 11.5 software was used to analyze the data.Results The baseline indicators were similar before nutritional supports.Fourteen days after nutritional support,alanine aminotransferase(ALT) and aspartate aminotransferase(AST) were all significantly lower in experimental group than in control group(Pa

Objective To investigate the dynamic changes of microglial polarization at the perihe-matoma area and provide timepoint evidence for interventing microglial polarization as well as studying the polarization mechanism after intracerebral hemorrhage ( ICH ) . Methods Healthy male Sprague Dawley (SD) rats were randomly divided into sham group,ICH-4 h,1 d,3 d,7 d and 14 d groups with 6 in each group. The rats in ICH groups were injected collagenase VII-s into the caudate nucleus to establish the in-tracerebral hematoma model and rats in sham operated group were treated with the same amount of saline. The brains were taken at 4 h,1 d,3 d,7 d,14 d in the ICH group,1 d in sham group. Microglia typeⅠ( M1, CD11b++CD86+) and microglia typeⅡ( M2,CD11b++Arg-1+) were examined by immunofluorescence and the number of M1 and M2 around hematoma were analyzed. Results ( 1) The M1 and M2 were both ob-served at 4 h after ICH and a small quantity of branches were still presented on M1. ( 2) M1 took the main position in acute stage (1~3 d),early subacute stage(3~7 d) and chronic stage (>14 d) after ICH.The number of M2 was elevated transiently in superacute (<24 h) and late subacute stage (7 d).The number of M2 (31.40±1.69) was more than M1 (21.43±1.81) at 4 h after ICH ( t=- 4.085, P=0.002),and the number of M2 (116.25±5.06) significantly exceeded M1 (85.75±7.32) again on day 7 ( t=-0.690, P=0.001). Conclusion M1 is in a dominant position in acute,early subacute and chronic stages after ICH;M2 is dominant in superacute and late subacute stages. Investigating the mechanism of M2 formation at acute period ( such as 4 h) or late subacute stage ( such as 7 d) ,and inhibiting M1 formation in the early subacute stage ( 1~3 d) have important significance for clinical treatment of ICH.

The intracellular trafficking and subcellular distribution of exogenous gene is very important for gene delivery. A successful gene vehicle should overcome various barriers including endosomal membrane barriers to delivery gene to the target organelle. Traditional nonviral vehicle is unable to avoid endosomal pathway efficiently, so the efficiency of gene delivery is low and the application of gene drugs is limited. In order to achieve efficient nonviral gene delivery, a lot of researches based on endosomal escape have been carried out and some agents with the function of endsomal escape have been found. These agents facilitate the endsomal escape via various mechanisms, such as fusion into the lipid bilayer of endosomes, pore formation in the endosomal membrane, proton sponge effect and photochemical methods to rupture the endosomal membrane. In this review, various reported strategies for endsomal escape are described according to the escape mechanisms, and their applications in intracellular gene delivery are also discussed.
Cell Membrane ; metabolism ; Endosomes ; metabolism ; Gene Transfer Techniques ; Genetic Therapy ; Genetic Vectors ; Humans

Objective To report the clinical effect of primary percutaneous coronary intervention(PCI)in patients with acute myocardial infarction(AMI).Methods A retrospective study was accomplished on the clinical data of 13 AMI patients who underwent PCI from March 2004 to April 2006.Results The infarct-related artery (IRA)was successfully recanalized by primary PCI for 12 AMI patients,without major complications occurred in these cases during hospitalization.Conclusion Primary PCI should be firstly chosen for treatment of AMI in the hospitals which could carry out PCI.

Objective To compare the clinical outcomes of in vitro fertilization-embryo transfer(IVF-ET) in polycystic ovary syndrome(PCOS) patients with different body mass index(BMI).MethodsEighty-seven PCOS patients who received IVF-ET were classified into four groups according to BMI: group A,BMI0.05).ConclusionThe doses of gonadotropins are increased in PCOS patients with increasing BMI.The number of usable embryo is significant decreased in PCOS patients with BMI≥25 kg/m2.