Objective To test the reliability and validity of the brief International Classification of Functioning, Disability and Health (ICF) core sets for Chinese stroke patients using Rasch model analysis. Methods The body functions of 38 Chinese stroke patients were measured using the brief ICF core sets. The qualifiers of the 20items were measured by two raters and analyzed using FACETS statistical software. The intra-rater reliability and validity were tested by using the separation index and separation reliability and fit analysis. Results The brief ICF core sets had good internal consistency and reliability (person separation index = 6.02, person separation reliability = 0.94 ) with these Chinese patients. The raters showed significantly different strictness in rating, but their ratings had good internal self-consistency. The construct validity was good for the body functions of the ICF component ( separation index = 10.50, separation reliability = 0.80) , but misfitting and overfitting were found in items b117, b152and b755. Conclusion The body function of the brief ICF core sets has good reliability and validity for Chinese stroke patients. A many-facet Rasch measurement model can provide comprehensive information and has good application prospects for testing the reliability and validity of ICF core sets.

Objective To discuss the significance of platelet rich plasma in promoting bFGF and VEGF expression in would healing of rabbit buns .Methods The 24 rabbits were randomly divided into control group and experimental group .The sulfadiazine silver paint to the wound for control group and the platelet rich plasma gel evenly spread to the wound for experimental group .At 7th ,10th ,14th day ,4 rabbits of each group were randomly selected to sacrificed after anesthesiaed ,wound healing rate was compare in 2 groups ,HE staining and testimmunohistochemistry were conducted in each group .Results At 7th ,10th ,14th day ,the wound healing rate of experimental group were higher than those of control group .At 7th d ,the focal granulation ,cells and vessels inten-sive were more significant in experimental group than in control group ,at 10th day ,the wound fibroblast cells and capillary number are more significant in experimental group ,and at 14th day ,the most of fibroblasts translate into fiber cell and the capillary number decreased ,the fibroblasts proliferation was still active and fiber cell was less in the control group .At 7th ,10th day ,the expression of bFGF and VEGF were both higher ,but experimental group is obvious higher than control group(P<0 .05) ,but at 14th day ,the ex-pression of bFGF and VEGF were gradually declined and was not obvious statistics differences in the two group (P>0 .05) .Conclu-sion The platelet rich plasma could promote the big white rabbit scald wound healing ,while the main mechanism maybe the ex-pression of bFGF and VEGF increased in the early .

Acute lung injury/acute respiratory distress syndrome (ALI/ARDS) is a respiratory disorder with high morbidity and mortality caused by various causes. Exosomes can mediate cell communication through paracrine pathways, transfer proteins, lipids, nucleic acids, etc., and interfere with the biological functions of recipient cells. Various cell-derived exosomes have been reported to play an immunomodulatory role in the ALI/ARDS inflammatory model. This article reviews the mechanism of exosomes involved in immune regulation of ALI/ARDS and possible therapeutic approaches.

Objective To study the function and mechanism of GIT1(G protein coupled receptor kinase interacting protein 1)in osteoblast migration.Methods GIT1 and ERK1/2(Extracellular Signal-regulated ki- nase 1/2)were detected in mice primary osteoblasts.The localizations of GIT1 and ERK1/2 were determined by immunofluorescence stain with or without PDGF(platelet-derived grnwth factor)stimulation.The association of GIT1 anti ERK1/2 was analyzed by co-immunoprecipitation and western blot.After stimulation,the co-localization of GIT1 and pERK1/2 in osteoblasts was detected by double-immunnfluorescence stain.The pERK1/2 localization was detected by immunofluorescence stain after GIT1RNAh adenovirus infection of osteoblasts.The role of this associa- tion was determined by wound healing assay.Results The co-immunoprecipitation results showed that GIT1 in- teracted with ERK1/2 in osteoblasts induced by PDGF and this association occurred in focal adhesions.GIT1 RNAh adenovirus significantly inhibited the pERK1/2 translocation to focal adhesions and osteoblast migration induced by PDGF.Conclusion GIT1 associates with ERK1/2 in osteoblasts,which is required for pERK1/2 translocation to focal adhesions and osteoblast migration.

Objective: To investigate the protective effect of shenduqing Granules on chronic renal insufficiency in rats. Methods: The rat model of chronic renal insufficiency was made by feeding 0.75% adenine forage. The blood biochemical indexes, ion concentration in serum of rat was measured and the pathological changes of rat kidney were observed. Results: Shenduqing Granules obviously increased thymus index (TI). The weight of rat kidney in the treatment group was lighter than that of the model group. The kidney histomorphological study showed that Shenduqing Granules obvionsly reduce the pathological changes. The drug crystals were also reduced. Conclusion: Shenduqing Granules has the potential protection against chronic renal insufficiency in rats.

The parts of system automatically detecting the standard 12-synchronous-lead ECG (electrocardiograms) signal based on personal computer is introduced in this paper. The object-oriented programming method is adopted based on Windows System. We put forward methods to analyze QRS complex wave, P wave, T wave and ST fragment. In this paper the techniques such as ECG signal preprocessing, cardio wave parameters detecting and wave pattern cognizing are discussed too. Furthermore we use wavelet transform technique to analyze the wave pattern and get sound effect.
Algorithms ; Electrocardiography ; instrumentation ; methods ; Humans ; Pattern Recognition, Automated ; Signal Processing, Computer-Assisted ; Software

Objective To investigate the effects of laporoscopic resection applied to colorectal cancer patients on metabolism. Methods According to patients' choice of operation, either laparoscopic-assisted (n = 22, experimental group) or open(n = 27, control group) resection of colorectal cancer was performed. The levels of electrolyte were assayed preoperatively, postoperatively and on the time of 24 hours after opera-tion. Rseults There was no significant difference in the level of electrolyte before operation between the two groups (P > 0. 05). Compared with the preoperative period, the level of serum potassium in the both groups were significantly increased after operation(P < 0. 05), and 24 hours later, the levels of electrolyte was not significantly different in both the two groups (P > 0. 05). During the postoperative period, the level of serum potassium in the experimental group was lower than the control group(P <0. 05), while the level of HCO_3~- was higher than the control group(P <0. 05), and there were no significant differences in the level of serum sodium, chloride and calcium between the two groups(P > 0. 05). Conclusions Laparoscopic-assisted re-section of colorectal cancer gives lower levels of stress responses compared to open surgery. However, it shows higher effect on the level of HCO_3~- , and must be paid more attention during operative and postopera-tive period.

Objective To investigate the role of the expression of latent transforming growth factor beta binding protein-1 (LTBP-1) and transforming growth factor beta receptor type Ⅱ(TGF-beta R Ⅱ) in the pathogenesis of condyloma acuminatum (CA). Methods Samples were resected from the lesions of 30 patients with CA and prepuces of 17 normal human controls. The mRNA and protein expressions of LTBP-1 and TGF-betaR Ⅱ were assessed by quantitative real-time PCR and a streptavidin-biotin-peroxidase staining technique, respectively. Results As shown by Real time PCR, the mRNA expression levels of LTBP-1 and TGF-betaR Ⅱ were significantly higher in CA tissues than those in the controls, with the average value of 2 (-Delta Delta α) being 2.46 and 3.43, respectively. A lower intensity of stainning was observed for LTBP-1 and TGF-betaR Ⅱ in CA tissues compared with the normal controls (182.51±9.89 vs 167.78±12.56, 187.35± 11.23 vs 170.15±13.21, t = 5.62, 3.70 respectively, both P <0.01). Conclusion The decrease in the expres-sion of both LTBP-1 and TGF-betaR Ⅱ may lead to the abnormality in the activation of TGF-beta and signal transduction pathways.

OBJECTIVETo analyze the causes of delayed union or nonunion of the ulna after intramedullary nailing in pediatric forearm fractures.

METHODSFrom February 2005 to February 2010,5 patients with forearm fractures who were treated with titanium elastic nailing (TEN) were identified to fulfill the criteria of having developed a delayed union or nonunion of the ulna. The causes of delayed union or nonunion were investigated according to mechanism of injury, fracture location, treatments methods and postoperative management. All patients were male and the age was 3 to 14 years old with an average of 9.4 years. All fractures were located on the mid-third part of forearm. Two cases had a re-fracture. Among them, 3 cases caused by high-energy injury and 2 cases by falling down. Open reduction were performed in 4 cases while the other one was treated with closed reduction. Four patients were immobilized in an above-elbow cast, postoperatively.

RESULTSAll patients were followed up from 7 to 19 months with an average of 11.4 months. There were 4 delayed union and 1 nonunion. Three patients healed after the removal of the nail and avoidance of weight-bearing. Two patients healed by replacing another fixation. No patients had soft-tissue irritation or nail-entry-site infections.. The clinical effect was evaluated according to Daruwalla and Price scores with 3 excellent and 2 good of the results.

CONCLUSIONSUsing titanium elastic nailing for the treatment of pediatric both-bone forearm fractures is a good method. However,strict indication selection should be followed to avoid delayed union or nonunion.

Adolescent ; Child ; Child, Preschool ; Fracture Fixation, Intramedullary ; methods ; Fracture Healing ; Humans ; Male ; Radius Fractures ; physiopathology ; surgery ; Retrospective Studies ; Ulna Fractures ; physiopathology ; surgery

OBJECTIVETo investigate effects of the variation of immune function in high humidity environment in different time, and lay a foundation for further study of the related mechanism.

METHODThirty SD rats were divided into 3 groups (n = 10): 20 day group, 40 day group in 90% relative humidity chamber and control group in normal relative humidity. Peripheral blood and spleens were collected to detect the levels of T lymphocyte subsets by Flow Cytometery.

RESULTSIn peripheral blood of the 20 day group rats, the CD3+ %, CD4+ %, CD8+ % and CD4+/CD8+ were 52.91 +/- 6.27, 37.80 +/- 4.11, 14.85 +/- 3.73 and 2.72 +/- 0.82 separately. Expect CD3+ %, they all had significant differences (P < 0.05). In addition, the data of the 40 day group rats showed no diversity in statistics. In spleen, CD8+ % of the 20 day group rats was 6.23 +/- 2.87 with significant differences (P < 0.05) and IgG, IgA and IgM did not change a lot in blood serum of the high humidity groups except C3 of the 20 days group (P < 0.05).

CONCLUSIONIn high humidity environment, the immune function of the rats increased in the initial stage. As time went on, the immune function gradually went to normal level through the self adjustment.

Acclimatization ; Animals ; Humidity ; Rats ; Rats, Sprague-Dawley ; Spleen ; immunology ; T-Lymphocyte Subsets ; immunology