Objective To study the possibility of the exist of specific antibody against platelet in tumor patients and to evaluate the value of MAIPA in measure of specific antibody against platelet in malignant tumor patients with nonimmune thrombocytopenic purpura. Methods Anti- GPⅡb/Ⅲa and anti- GPⅠb/Ⅸ autoantibodies were detected by a modified monoclonal antibody immobilization of platelet antigens assay(modified MAIPA). Results The positive rate of the platelet antibody in nonimmune thrombocytopenic purpura is very low with MAIPA. Conclusions The platelet GP- specific autoantibody detection is considerably important in discriminating immune from nonimmune thrombocytopenia.

ObjectiveTo compare the levels of sFas in the sera among Kawasaki disease (KD),incomplete Kawasaki disease (IKD),and normal control groups,and to analyze the relationship of sFas with IKD children.MethodsA total of 32 cases of acute KD and acute IKD children,and 20 cases of the control children were selected,respectively.The levels of serum sFas among three groups were measured using ELISA kits.Each child among the three groups was examined by echocardiography.Results(1)The levels of serum sFas among the three groups were[ (0.54±0.20)ng/L in KD,(0.55±0.16)ng/L in IKD,and (0.24 ± 0.04) ng/L] in control group,respectively.The overall means of sFas in the KD and IKD groups were higher than the control group,and the differences were statistically significant( F=29.276,P＜0.05 ).(2)The levels of serum sFas among echocardiography abnormal and normal groups were[ (0.65±0.19) ng/L and (0.49±0.10)ng/L],respectively; and the difference between two groups were statistically significant ( t=3.139,P ＜ 0.05 ).ConclusionsThe expression levels of sFas in the peripheral serum of IKD children were increased,and there was a close association of overexpression of sFas with the cardiovascular damage in IKD children.

Coronary heart disease is the leading cause of death in the United States and many developed countries. Percutaneous coronary intervention (PCI) is an important means to treat coronary heart disease. However, PCI can not eliminate the risk factors of coronary heart disease. As an important auxiliary means of PCI, cardiac rehabilitation can significantly slow down the progress of atherosclerosis, reduce cardiovascular events, improve patients′ exercise tolerance and the quality of life of patients. It have been developing vigorously in developed countries and achieved remarkable results. This paper will review the effects of cardiac exercise rehabilitation and the research on cardiac exercise rehabilitation in different clinical stages.

Objective To evaluate the diagnostic efficacy of diffusion kurtosis imaging(DKI)histograms in predicting isocitrate dehydrogenase(IDH)mutations and grade in gliomas.Methods Sixty-four patients with pathologically confirmed gliomas with IDH gene phenotype results were included,all of whom underwent DKI,and mean kurtosis(MK)and mean diffusivity(MD)maps were generated.The whole tumor was outlined on the MK and MD maps in all slices,and histograms of the full tumor volume MK and MD were calculated.The histogram parameters between IDH mutant and wild type gliomas,and the MK and MD histogram parameters between high grade glioma(HGG,grade 3-4)and low grade glioma(LGG,grade 2)were compared.Receiver operating characteristic(ROC)curve was used to assess the predictive efficacy in determining IDH gene phenotype and grade of gliomas in statistically different parameters.Results Of the 64 gliomas,39 were IDH mutant and 25 were IDH wild type.The MKmax and MK90th in IDH mutant gliomas were lower than that in IDH wild type,while the MDmin,MD10th and MD30th were greater than that in IDH wild type.The area under the curve(AUC)of MKmax was 0.883 in differentiation of the IDH mutant and the IDH wild type,and when the MKmax was greater than 0.745,its sensitivity and specificity in predicting IDH mutations were 81.8％and 82.4％,respectively.There were 28 cases of LGG and 36 cases of HGG;the MKmax,MK70th,and MK90th of HGG were greater than that of LGG,while the MDmin and MD10th were lower than that of LGG,in which the MD10th had an AUC of 0.886 in differentiation of HGG and LGG,when MD10th was greater than 1.075 × 10-3 mm2/s,its sensitivity and specificity in predicting HGG were 85.7％and 86.1％,respectively.Conclusion The MKmax in the DKI histogram has the highest predictive efficacy in the IDH phenotype,while the MD10th has the best diagnostic value for glioma grade.

Objective:To explore the application value of electromagnetic navigation technique in the removal of hematoma under neuroendoscope.Methods:Forty-three patients with supratentorial spontaneous cerebral hemorrhage, accepted removal of hematoma under neuroendoscope in our hospital from October 2015 to February 2019, were chosen in our study; 22 patients (navigation group) were performed the removal under the guide of real-time electromagnetic navigation, and 21 (non-navigation group) were performed the removal under neuroendoscope only. The amount of cerebral hemorrhage, operation time, residual amount of hematoma and hematoma clearance rate were compared between the two groups. Fugl-Meyer Assessment (FMA) was used to evaluate the motor function of the affected limbs two weeks after surgery. The anisotropy fraction (FA) values of fibers of affected pyramidal tracts and contralateral pyramidal tracts were examined by diffusion tensor imaging (DTI), and the relative FA (rFA) value (FA values of affected side/contralateral side) was calculated. Barthel index was used to evaluate the basic daily activities of the patients 6 months after surgery.Results:There was no significant difference between the navigation group and the non-navigation group in the amount of cerebral hemorrhage before surgery, amount of residual hematoma after surgery, hematoma clearance rate, and operation time ( P>0.05). FMA scores of upper and lower limbs, FA and rFA values of the affected side in the navigation group were significantly higher than those in the non-navigation group two weeks after surgery ( P<0.05). Barthel index of patients in the navigation group was statistically higher than that of the non-navigation group 6 months after surgery ( P<0.05). Conclusion:Electromagnetic navigation technique can guide endoscopy to effectively clear the supratentorial hypertensive cerebral hemorrhage without obviously increasing the operation time; effective protection of pyramidal fibers can improve the prognoses of patients.

Polylactic acid is synthesized indirectly by the polymerization method, according to the standard GB/T 16886.18-2011, the evaluation parameters and methods about chemical characterization of polylactic acid have been established. By using rigorous and comprehensive comparative analysis, the chemical equivalency of domestic and imported polylactic acid materials has been proved, along with the "Medical Device Biology Evaluation and Review Guide", paving the way of using domestic polylactic acid in implantable medical devices.
Equipment and Supplies ; Lactic Acid ; Polyesters ; chemistry ; Polymers

Type 2 diabetes mellitus,a common metabolic disease,has become a global public health challenge due to its high morbidity and disability.With the rise of mobile healthcare,the advancement of emer-ging technologies such as artificial intelligence,and the popularization of the concept of personalized health,the field of smart wearable devices is growing rapidly.Wearable devices are categorized into two types:medical and fitness wearable devices,which have been applied in the monitoring and regulation of blood glucose and the mod-ulation of healthy lifestyles of patients with type 2 diabetes mellitus.This article summarizes the research progress in the application of wearable devices in patients with type 2 diabetes mellitus in the past 8 years,with a view to promoting the application of wearable devices and realizing the whole life-cycle health management of patients with type 2 diabetes mellitus.

Objective To investigate the changes in eosinophil counts and the activation of microglial cells in the brain tissues of mice at different stages of Angiostrongylus cantonensis infection, and to examine the role of microglia in regulating the progression of angiostrongyliasis and unravel the possible molecular mechanisms. Methods Fifty BALB/c mice were randomly divided into the control group and the 7-d, 14-d, 21-day and 25-d infection groups, of 10 mice in each group. All mice in infection groups were infected with 30 stage III A. cantonensis larvae by gavage, and animals in the control group was given an equal amount of physiological saline. Five mice were collected from each of infection groups on days 7, 14, 21 d and 25 d post-infection, and 5 mice were collected from the control group on the day of oral gavage. The general and focal functional impairment was scored using the Clark scoring method to assess the degree of mouse neurological impairment. Five mice from each of infection groups were sacrificed on days 7, 14, 21 d and 25 d post-infection, and 5 mice from the control group were sacrificed on the day of oral gavage. Mouse brain tissues were sampled, and the pathological changes of brain tissues were dynamically observed using hematoxylin and eosin (HE) staining. Immunofluorescence staining with eosinophilic cationic protein (ECP) and ionized calcium binding adaptor molecule 1 (Iba1) was used to assess the degree of eosinophil infiltration and the counts of microglial cells in mouse brain tissues in each group, and the morphological parameters of microglial cells (skeleton analysis and fractal analysis) were quantified by using Image J software to determine the morphological changes of microglial cells. In addition, the expression of M1 microglia markers Fcγ receptor III (Fcgr3), Fcγ receptor IIb (Fcgr2b) and CD86 antigen (Cd86), M2 microglia markers Arginase 1 (Arg1), macrophage mannose receptor C-type 1 (Mrc1), chitinase-like 3 (Chil3), and phagocytosis genes myeloid cell triggering receptor expressed on myeloid cells 2 (Trem2), CD68 antigen (Cd68), and apolipoprotein E (Apoe) was quantified using real-time quantitative reverse transcription PCR (RT-qPCR) assay in the mouse cerebral cortex of mice post-infection. Results A large number of A. cantonensis larvae were seen on the mouse meninges surface post-infection, and many neuronal nuclei were crumpled and deeply stained, with a large number of bleeding points in the meninges. The median Clark scores of mouse general functional impairment were 0 (interquartile range, 0), 0 (interquartile range, 0.5), 6 (interquartile range, 1.0), 14 (interquartile range, 8.5) points and 20 (interquartile range, 9.0) points in the control group and the 7-d, 14-d, 21-d and 25-d groups, respectively (H = 22.45, P < 0.01), and the median Clark scores of mouse focal functional impairment were 0 (interquartile range, 0), 2 (interquartile range, 2.5), 7 (interquartile range, 3.0), 18 (interquartile range, 5.0) points and 25 (interquartile range, 6.5) points in the control group and the 7-d, 14-d, 21-d and 25-d groups, respectively (H = 22.72, P < 0.01). The mean scores of mice general and focal functional impairment were all higher in the infection groups than in the control group (all P values < 0.05). Immunofluorescence staining showed a significant difference in the eosinophil counts in mouse brain tissues among the five groups (F = 40.05, P < 0.000 1), and the eosinophil counts were significantly higher in mouse brain tissues in the 14-d (3.08 ± 0.78) and 21-d infection groups (5.97 ± 1.37) than in the control group (1.00 ± 0.28) (both P values < 0.05). Semi-quantitative analysis of microglia immunofluorescence showed a significant difference in the counts of microglial cells among the five groups (F = 17.66, P < 0.000 1), and higher Iba1 levels were detected in mouse brain tissues in 14-d (5.75 ± 1.28), 21-d (6.23 ± 1.89) and 25-d infection groups (3.70 ± 1.30) than in the control group (1.00 ± 0.30) (all P values < 0.05). Skeleton and fractal analyses showed that the branch length [(162.04 ± 34.10) μm vs. (395.37 ± 64.11) μm; t = 5.566, P < 0.05] and fractal dimension of microglial cells (1.30 ± 0.01 vs. 1.41 ± 0.03; t = 5.266, P < 0.05) were reduced in mouse brain tissues in the 21-d infection group relative to the control group. In addition, there were significant differences among the 5 groups in terms of M1 and M2 microglia markers Fcgr3 (F = 48.34, P < 0.05), Fcgr2b (F = 55.46, P < 0.05), Cd86 (F = 24.44, P < 0.05), Arg1 (F = 31.18, P < 0.05), Mrc1 (F = 15.42, P < 0.05) and Chil3 (F = 24.41, P < 0.05), as well as phagocytosis markers Trem2 (F = 21.19, P < 0.05), Cd68 (F = 43.95, P < 0.05) and Apoe (F = 7.12, P < 0.05) in mice brain tissues. Conclusions A. cantonensis infections may induce severe pathological injuries in mouse brain tissues that are characterized by massive eosinophil infiltration and persistent activation of microglia cells, thereby resulting in progressive deterioration of neurological functions.