Girdin protein is a kind of actin binding protein,which has the complex molecular structure and takes part in a variety of signaling pathways related with causing cancer.The biological characteristics of Gir-din protein have close association with the proliferation and invasion of malignant tumor.Recent studies have shown that Girdin protein is closely related with occurrence and progress of breast cancer.Girdin protein expres-sion in breast cancer cells can not only promote the progress of breast cancer,but also affect the lymph node me-tastasis and prognosis.Therefore Girdin protein is expected as an independent biomarker to provide a new direc-tion for breast cancer treatment.

Objective:This research is to observe the immunity state of lung cancer by radiotherapy in sync with chemotherapy combined with pingxiao capsule,and to evaluate the effect on the immune function and the existence qualitative of pingxiao capsule in lung cancer.Method:Sixty lung cancer patients were parted into two groups at random,one is simple radiotherapy in sync with chemotherapy,the other is radiotherapy in sync with chemotherapy combined with pingxiao capsule.All the two groups were carried out T-cell subgroup experiment at the beginning and three weeks after the therapy.Results:After therapy CD3,CD4 and CD4/CD8 all indicates significant lower level(P

Electric fields have special biological effects for its heating and non-heating effects. Heating effects are about the technology of radio frequency and microwave thermotherapy while non-heating effects are alternating electric field and pulsed electric field. These electric fields have significant effects for tumor treating.

ObjectiveTo evaluate the impact of hyperglycemia in patients admitted to medical intensive care units(MICU)on their prognosis.MethodsMedical records of 1016 patients,including 126 cases of known diabetes,359 cases with newly diagnoses hyperglycemia,and 531 normoglycemic cases,admitted to MICU in Wuhan University People's Hospital during September 2006 to September 2007 were reviewed to compare their case-fatality,length of hospital stay,length of MICU stay,mechanical ventilation,blood transfusion and antibiotics use.ResultsIn.hospital case-fatality was 22.8%(82/359)in patients with newly-diagnosed hyperglycemia.significantly higher than that in patients with known diabetes of 12.7% (16/126)and in normoglyeemic cases of 5.1%(27/531)(P＜0.01),and that Was higher in those with diabetes than those with normal blood glucose level(P=0.002).Proportions of patients who needed mechanical ventilation,blood transfusion,antibiotics use was higher in newly diagnosed hyperglycemia group than those in the other two groups.ConclusionsHyperglycemia represents an important mal'ker of poor clinical outcomes and mortality in patients admitted tO MICU.Patients with newly diagnosed hyperglycemia had a significantly higher case-fatality and poorer outcomes than those with known diabetes or normoglyeemia.

BACKGROUND: Item response theory (IRT) is widely used in the westem world, but its use for non-cognitive measurement has been very limited in China. It is necessary to explore whether IRT is applicable in non-cognitive settings and find the optimal model.OBJECTIVE: To find the optimal IRT model for self-report questionnaire analysis with the instance of emotional competence scale (ECS) and compare the effectiveness of different models in light of model data fitting and the volume of information provision.DESIGN: A comparative study of different psychometric models tested with the same data set.SETTING: Shandong Laiwu Vocational and Technical College; Department of Psychology, Liaoning Normal University.PARTICIPANTS: Totally 617 college students of Shandong Normal University (311 males and 306 females)and 564 senior high school students of the 17 Laiwu High School (283 males and 281females) participated in the study during May 2004.METHODS: Emotional competence scale (ECS) was adopted for psychometric measurement for 5-point Likert-type items. The scale was divided into 9 subscales, namely impulse control, empathy, persistency, interpersonal intimacy, social skills, emotional regulation, emotional stability, sense of responsibility, and self-confidence. One-parameter, two-parameter and three-parameter logistic model and grade response model were used for analysis of the 9 subscales, followed by goodness of fit test (analogous to Chi-square test) and comparison of the measurement precision (reliability)of the three models.MAIN OUTCOME MEASURES: Log-likelihood ratio, average χ2 statistics and average volume of information when one-parameter, two-parameter and three-parameter Logistic model.RESULTS: Totally 1 220 questionnaires were handed out and 1 181 with valid answers were obtained. Comparison of the 3 logistic model showed that the two-parameter logistic model had the least log-likelihood with the least items whose mean square residual error were greater than 2, and the volume of test information was greater than that provided by one-parameter model and no less than the three-parameter model. Therefore, the two-parameter logistic model was the best for 2-point scoring model. But the measurement precision of two-parameter Logistic model was lower than that of multi-grade response model.CONCLUSION: When 2-point items are adopted in self-report questionnaire, 2-parameter logistic model can be applied but not 1- or 3-parameter Logistic models. But when the questionnaire uses items that have more than 2 response grades, the measurement precision can be better than that of 2-point data. Merge of the options for the items may result in lowered measurement precision.

Objective To explore the role of hemoglobin (Hb) level in mortality and morbidity of chronic kidney disease (CKD)patients,aiming to give some evidence for therapy of anemia.Methods Randomized,clinical trials (RCTs) were identified by searching Medline,Embase and the Cochrane library.All the analyses were performed using the Revman software available free from the Cochrane collaboration.Results Twenty-three trials involving 10 204 patients were identified.Overall,the high Hb target was associated with increased risk of all-cause mortality (RR=1.10,95％ CI 1.00 to 1.21),hypertension (RR=1.40,95％ CI 1.12 to 1.75),stroke and hospitalization (RR=1.07,95％ CI 1.00 to 1.14) compared with low Hb target (P＜0.05).No significant difference was found in the risks of non-fatal mycardial infarction (RR=1.13,95％ CI 0.79 to 1.62) and renal replacement therapy (RR =1.00,95％ CI 0.85 to 1.18).Conclusions Targeting low Hb target is beneficial to CKD patients based on reduced risk of hypertension,hospitalization,stroke and all-cause mortality.However,no significant difference is found in non-fatal mycardial infarction and renal replacement therapy.

Objective:To explore the application value of continuous positive airway pressure ( CPAP) in the treatment of obstruc-tive sleep apnea hypopnea syndrome (OSAHS ) complicated with coronary heart disease (CHD).Methods:Totally 50 patients with OSAHS complicated with CHD from June 2012 to June 2014 in our hospital were randomly divided into the control group and CPAP group with 25 ones in each .The patients in the control group were treated with the conventional drug therapy for coronary heart disease , while those in CPAP group were treated with CPAP additionally .After 6-month treatment, PSG index, clinical symptoms, arrhythmia and ischemia electrocardiogram changes of the patients in the two groups were compared .Results:After the 6-month treatment , AHI and oxygen desaturation index in CPAP group were significantly decreased when compared with those before the treatment , and the min-imum value of SaO2 and the average value of SaO 2 were higher than those before the treatment (P<0.01), and the above indices were better than those in the control group (P<0.01).The incidence rate of chest pain and chest tightness , arrhythmia, times of myocardi-al ischemia in a day and time of myocardial ischemia in a day were decreased after the treatment (P<0.01), and the decrease in CPAP group was more notable than that in the control group (P<0.01).Conclusion: CPAP combined with the conventional drug therapy for coronary heart disease can improve the oxygen concentration and reduce the incidence of arrhythmia and myocardial ischemia in the patients with OSAHS with CHD , which can be widely used in clinics .

BACKGROUND:Because chondrocytes have no regeneration ability, to select suitable seed cels is the primary problem to repair cartilage defects.
OBJECTIVE:To investigate the effect of alogeneicversus heterologous bone marrow mesenchymal stem cels (BMSCs) in repairing laryngeal cartilage defects after chondrogenic induction.
METHODS:BMSCs from human and rabbits were isolated and cultured. Passage 3 cels were cultured in chondrogenic induction medium containing transforming transforming growth factor beta 1 and bone morphogenetic protein, and then were dropped onto a poly(lactic-co-glycolic acid) (PLGA) scaffold. Thirty New Zealand rabbits were randomly assigned into three groups: blank control group, human BMSCs group, rabbit BMSCs group. Animal models of laryngeal cartilage defects were made in the three groups. After modeling, saline-soaked PLGA scaffold, PLAG scaffold with human BMSCs or with rabbit BMSCs were implanted respectively into the rabbits in the normal blank, human BMSCs and rabbit BMSCs groups. The expression of type II colagen in the larynx and its surrounding tissues was detected by immunohistochemistry at 4 and 8 weeks postoperatively.
RESULTS AND CONCLUSION: The animals in each group breathed normaly with no presence of wheezing, and their eating and activity were good. Moreover, there was no purulency or infection in the three groups. At 4 and 8 weeks after operation, the positive rates of type II colagen in the two BMSCs groups were significantly higher than that in the blank control group (P < 0.05). There was no significant difference between two BMSCs groups (P > 0.05). These results show that both alogeneic and heterologous BMSCs have good therapeutic effects on the repair of laryngeal cartilage defects in rabbits.

Objective To observe the effect of transperineal injection of botulin A toxin on patients with detrusor-external sphincter dyssynergia caused by spinal cord injury. Methods Transperineal injection of botulin A toxin were performed in 6 patients with spinal cord injury (3 with cervical spinal cord injury and 3 with thoraco-lumbar spinal cord injury) complicated by detrusor-external sphincter dyssynergia.55 U of botulin A toxin was injected twice separately. The interval between 2 injections was 3 days.Before treatment, the residual volume of urine after voiding was determined and the maximum urethral pressure was measured by urodynamic testing.One month after treatment the examination mentioned above was repeated. Results The decrease in residual volume of urine was (133.3?70.9)ml.The decrease in maximum urethral pressure was (35.4?25.8)cmH 2O(both P

With the development of modern medical technology,the traditional teaching mode can not satisfy the teaching requirements of biomedical measurement and instrument which is one of the main courses of biomedical engineering,and network teaching is the tendency.The article studies how to develop biomedical measurement and instrument's network teaching from many aspects,such as the construction of information platform,network teaching pattern design and so on,and the practice has achieved good results.