Objective To analyze the effects of coil size and sample volume on coil signal to noise ratio(SNR).Methods Two sphere phantoms with different diameters were put into the center of body coil symmetrically,and the smaller phantom was put into the centers of body coil,head coil,and the extremity coil respectively.All the phantoms were then scanned with sequences which were used to detect the SNR using the same parameters,and then the SNRs were measured.Results In body eoil,the image SNR got from the smaller phantom increased by 4% than that got from the bigger phantom,the difference was statistical significant(P

Objective To study the relationship between object-coil coupling and coil signal to noise ratio(SNR).Methods The SNR of the coil was measured and calculated using different shapes of the phantom and different positions in head or body coils.Results When oblate cylinder was placed axially in head coil,it's SNR(55.47?0.69)was better than that at sagittal position(46.59?1.36)(t=16.48, P

Objective To investigate the effect of inhaled corticosteroid (ICS) on lung function and inflammatory mediators in cough variant asthma (CAV).Methods Fifty patients with CVA were randomly divided into group A (n =30) and group B (n =20),and 20 normal cases were recruited as healthy group (group C) in this study.All the cases were given a lung function test,bronchial dilation test(BDT) and serum levels of inflammatory mediators(interleukin(IL)-5,IL-8 and IL-10) assessment.The cases in group A were given longterm ICS intervention therapy of inhaled budesonide aerosol at dose of 200 μg/day with 6 months' follow-up period.The cases in group B and C were given salbutamol and symptomatic treatment if necessary.Assessment about lung function (forced vital capacity (FVC),1 s forced expiratory volume (FEV1),peak expiratory rate (PER) and maximum mid-expiratory flow rate(MMEF)),BDT,and inflammatory mediators in all groups were performed before and after treatment.Results (1) Lung function:before treatment,the level of FVC,FEV1 and PEF in three groups were not significantly different (P ＞ 0.05).MMEF in group A and B is significantly lower than that in group C (F =58.40,P ＜ 0.05).In group A,MMEF was significantly improved (P ＜ 0.05,P ＜ 0.01) after 3 and 6 months ICS treatment.In group B,MMEF was not statistical improvement compared with before treatment(P ＞0.05).The BDT positive rate in group C was significantly lower than that in group A and B.The BDT positive rate in group A decreased after ICS treatment for 3 and 6 months.Meanwhile,the BDT level decreased as the longer treatment.In group B,there was no statistical decrease in terms of BDT positive rate(P ＞0.05).(2)Inflammatory mediators:in group C,the serum levels of IL-5 and IL-8 were lower than those in group A and B,but the level of I L-10 was higher than it in the other two groups(P ＜0.05).After 3 and 6 months ICS treatment,the serum levels of IL-5 and IL-8 were significantly decreased and the level of I L-10 was increased.The longer course was given,the more obvious change they have.There was no statistical difference in group B after 3 to 6 months treatment.It was statistical difference between group A and group B after 3 to 6 months treatment (P ＜ 0.05).Conclusion ICS treatment can significantly improve lung function and inflammatory mediators in patients with cough variant asthma.The better improvement will get if the longer treatment is given.

Objective To investigate the current situation of obstetric & gynecology clinical teaching,in order to improve it.Methods Questionnaire investigation was used to get the information of the gravidas and parturients' attitude to clinical teaching,and analysis the strategy.Results It was tough to make obstetric clinical teaching fine,especially to the male.Conclusion It was helpful to better the obstetric & gynecology clinical teaching,by improving teaching mode and paying more attention to communication between patient and doctor

BACKGROUND: Migraine is usually located in the course of Shaoyang channel, and the curative effect of treatment with methods of treating Shaoyang disease by dispersing and dispelling wind (DW) as well as relieving pain (RP) on migraine is prominent, but how about the effects of these two ways on thrombogenesis in vitro and the function of platelet aggregation (PA)?OBJECTIVE: To probe into the effect of treatment of Shaoyang disease and methods of DW and RP on thrombogenesis in vitro and function of PA throughthe experiments of thrombogenesis in vitro and function of PA in rats, and investigate the compatible significance of DS and DW as well as RP through formula compatible experiment.DESIGN: Completely randomized grouping design and controlled trial.SETTING: Department of Prescription, College of Basic Medical Sciences,Heilongjiang University of Chinese Medicine.MATERIALS: The experiment was conducted in the Laboratory of Department of Prescription, Heilongjiang University of Traditional Chinese Medicine from March to August 2000. Sixty healthy adult Wistar rats were randomly divided into 6 groups: Normal control group, Shaoyang treatment group (group Ⅰ ), DW and RP group (group Ⅱ ), high-dose and whole-prescription group (group Ⅲ), low-dose and whole-prescription group (group Ⅳ), and positive control group with 10 rats in each group.METHODS:① Positive control group:Gastric perfusion of 0.034 g/mL compound divaside slice suspension (made by Harbin Second Biochemical Pharmacy co., Ltd) was given to rats (0.39/kg); Group Ⅲ and Ⅳ (ingredients: Chaihu 20 g, huangqin 10 g, banxia 15 g, gancao 10 g, chuanqiong 20 g, tianma 15 g, xixin 5 g, quanxie 5 g, wugong 5 g): Gastric perfusion of 1.5, 0.75 g/mL of complete prescription was given to rats (17.40, 8.70 g/kg);Group Ⅰ (ingredients: Chaihu 20 g, huangqin 10 g, banxia 15 g, gancao 10 g) and group Ⅱ (ingredients: Chuanqiong 20 g, tianma 15 g, xixin 5 g, quanxie 5 g, wugong 5 g): Gastric perfusion of 0.75 g/mL agents of treatment with DS and DW wind antidyne was given to rats as 8.70 g/kg; Normal control group: Gastric perfusion of normal saline of the same volume wasgiven to rats.Intervention on rats of all groups lasted 12 days.② Experiment of thrombogenesis in vitro: The cephalic artery of one side was seperated 2 hours after the last time of administration. The distal part was deligated, the blood current in proximal part was blocked with bulldog clamp and the arterial cannula was inserted into the cephalic artery. Loosened the bulldog clamp, blood of 1.8 mL was collected and put into the rotary ring of thrombogensis meter to rotate for 15 minutes at 17 r/min,and then poured the thrombus, measured the length and humid weight of thromb. After that,dried the humid thromb and measured the dry weight.③ Determination of PA:The packing fraction (PF) in the 1st and 5th minutes as well as the maximal packing fraction (MPF) and assembling inhibition ratio of platelet-rich plasma within 5 minutes were recorded with test.MAIN OUTCOME MEASURES: Effect of treating Shaoyang disease nephelometry.④ Differences of measurement data were compared with tand methods of DW as well as RP on thrombogenesis in vitro and the function of PA.RESULTS: A total of 60 rats were involved in the analysis of results. ①The length, humid weight and dry weight of thrombogenesis in vitro in group Ⅲ and Ⅳ, positive control group and group Ⅱ were obviously lower than those in group Ⅰ (P ＜ 0.05). ② The PF in 1st, 5th minute and the maximal aggregathe normal control group (P ＜ 0.05-0.01); The humid weight and dry weight of thromb in group Ⅳ were significantly lower than those in tion (MA) of blood platelet in rats of each group were significantly lower than those in the normal control group (P ＜ 0.05-0.01), and the curative effect on rats in the positive control group, group Ⅲ and Ⅳ as well as group Ⅱ were better than that in group Ⅰ.CONCLUSION: There are no significant effects of dispersing thrombogenesis in vitro and inhibiting PA by only treating Shaoyang disease. The effect of combined prescription of DW and RP as well as treatment of Shaoyang disease are obviously enhanced.

Diabetes has become a global epidemic disease now. Its chronic progressive deterioration and the acuteand chronic complications affect the quality of the patients' lives seriously. The prevention and treatment of diabetes has become one of the research focuses in recent years. NLRP3 (NOD-like receptor family, pyrin domain containing 3) inflammasome can recognize the metabolic stress signals, and cause caspase-1 activation and interleukin-lp (IL-1p) production, and is closely related to diabetes development. The latest studies have shown that NLRP3 inflammasome will be a new potential target for the treatment of diabetes. This article reviews the activation and regulation of NL-RP3 inflammasome, and the effect of NLRP3 inflammasome on glucose metabolism and its targeted therapy in diabetes.
Carrier Proteins ; Caspase 1 ; Diabetes Mellitus ; Humans ; Inflammasomes ; Interleukin-1beta ; NLR Family, Pyrin Domain-Containing 3 Protein

Objective To investigate the value of CT scans in differential diagnosis of thyroid neoplasm.Methods CT findings ofthyroid neoplasm in 29 cases including 8 cases thyroid adenoma,4 cases nodular goiter and 17 cases thyroid carcinoma identified by operation and pathology were analyzed retrospectively.Results The contour of thyroid adenoma was distinct,a completely enhanced ring in 5 cases and enhanced nodules in 3 cases were showed on contrast-enhanced scan.4 cases of nodular goiter showed homogenous cystic low density the lesions were localized and distinct in contour,the cystic wall could be seen.Thyroid carcinoma appeared unhomogenous density,the edges contour of lesion was not distinct and infiltration on adjacent tissue might be seen.Conclusion CT scan might play an important role in diagnosis and differential diagnosis of thyroid neoplasm.

[Objective]To study the relationship between the existence and types of mediopatellar plica versus the chondral injury of the medial femoral condyle.[Method]Data were collected retrospectively from the photographic recording of arthroscopies performed from January 2004 to July 2008.Seventy-six knees were found with mediopatellar plica as the study group.Modified Sakakibara classification and the chondral injury(using the Outerbridge classification) of medial femoral condyle were recorded.Eighty knees without mediopatellar plica were randomly collected as controls.The correlation of mediopatellar plica and the cartilage injury on the surface of the medial femoral condyle was investigated.[Result]Patients with mediopatellar plica had a significantly higher incidence rate(89.5%) of medial femoral condyle cartilage lesion,in comparison with patients without mediopatellar plica(61.3%)(P=0.001).In the study group,a 64.3% proportion of the group with Sakakibara A mediopatellar plica was found to have cartilage lesion in the medial femoral condyle.The proportion of the group with Sakakibara BCD mediopatellar plica was found to be 95.2%,significantly higher than that in first group(P=0.004).The severity of cartilage injury in the medial femoral condyle was positively correlated with patient age(r=0.271,P=0.019) and the severity of the pathologic change of the mediopatellar plica(r=0.611,P=0.000).[Conclusion]According to this observation,the cartilage injury in the medial femoral condyle is more commonly found in patients with mediopatellar plica knees.A shelf-like appearance of the medial plica can increase the incidence of the cartilage injury.The severity of cartilage injury was positively correlated with patient age and the severity of the pathologic change of the mediopatellar plica.

Objective: To sum up the therapeutic effect of early enteral nutrition(EN) in postoperative patients with esophageal or cardiac cancer.Methods: The clinical data of 106 postoperative patients with esophageal or cardiac cancer who had received early enteral nutrition treatment were analyzed retrospectively.Results: All the patients recovered well.The occurrence of the serious postoperative complication,such as anastomotic leak,hypoalbuminemia and so on had been decreased.Conclusion: Early EN for postoperative patients with esophageal or cardiac cancer is a physiological nutrition support way.EN can maintain gastrointestinal function and improve nutritional status.

The literatures of biomedical big data are collected with the database of WOS as the data sources.CiteSpace and VOS-Viewer are used to draw scientific knowledge maps to analyze the research strength,research hotspot and evolution trend of current biomedical big data research in the paper.