ObjectiveTo compare the clinical effects of pulsed electromagnetic fields (PEMFs) with oral alendronate in the treatment of postmenopausal osteoporosis. MethodsFourty patients diagnosed to have postmenopausal osteoporosis (OP) from September 2009 to September 2010 were included in our study. They were randomly divided into the experimental group and the control group. All patients were administered the same basic drugs:Caltrate 600 mg and Alfacalcidol 0.5 μg per day. For the experimental group, PEMFs were offered 6 times per week for 5 weeks (30 times in total), and patients in this group were followed up for 12 weeks. For the control group, alendronate was given at a dose of 70 mg per week for 12 weeks. Bone mineral density (BMD), visual analogue scale, and manual muscle testing (MMT) scale were evaluated before, 1 week, 5 weeks, and 12 weeks after intervention. ResultsIncreasing of BMD, pain relieving, and improvement of MMT had a trend of increasing values after 5 weeks of treatment in the experimental group (P<0.05), but there was no significant difference between the two groups (P>0.05). However, there was a significant difference between the two groups in patients' lower back muscle strength after treatment (P<0.05). ConclusionPEMFs have the same effect as alendronate in pain relief, and bone mass and muscle strength improvement, and are even advantageous in increasing back muscle strength compared with alendronate.
ObjectiveTo discuss the characteristics of coronary artery disease in patients with type 2 diabetes using coronary angiography of Dual Source CT. MethodsWe collected the clinical data of patients who underwent coronary angiography of Dual Source CT between December 2010 and November 2012 in Sichuan Provincial People's Hospital and Sichuan Orthopedic Hospital. A total of 302 patients (74 with type 2 diabetes, and 228 with no diabetes) were examined with CT coronary angiography. All images were comprehensively assessed. Types of plaques and luminal narrowing were evaluated. ResultsPatients with type 2 diabetes had more plaques (P<0.05), especially mixed plaques and non-calcified plaques, than non-diabetic patients (P<0.05). The proportions of calcified plaque, mixed plaques, non-calcified plaque in patients with type 2 diabetes were 29.1%, 41.1%, 29.8%, respectively. The proportions of calcified plaque, mixed plaques, non-calcified plaque in patients with nondiabetic patients were 39.7%, 36.0%, 24.3%, respectively. The difference of the composition between diabetes and nondiabetic was significant (P<0.05). There were more mild, moderate and severe narrowing in type 2 diabetic patients than those in non-diabetic patients (P<0.05). ConclusionCoronary angiography of CT depicts a high plaque burden in patients with type 2 diabetes mellitus (mixed plaque is the most common type), which may cause stenosis easily.
The early damage detection and evaluation are of great significance in treatment and prognosis to the left ventricular function for children with tumor. In this paper, it is reported that the early damage of the left ventricular function was observed by pulsed wave Doppler (PWD) and tissue Doppler imaging (TDI) in our laboratory. Eighty children half a year to fourteen years old were included in this study. The cardiac function indices in chemotherapy group and control group were measured and compared. The results showed that there was significant difference in mitral and tricuspid annulus flow spectrum between the two groups. Compared with PWD, TDI is more prompt, objective and accurate in detecting early damage of left ventricular function in children with tumor.And TDI is a good method for early identification of ventricular function damage in children with tumor.
Computational fluid dynamics was used to investigate the effect of the pathogenesis of membranous obstruction of inferior vena cava of Budd-Chiari syndrome with various angles between right hepatic vein and inferior vena cava. Mimics software was used to reconstruct the models from magnetic resonance imaging (MRI) angiograms of inferior vena cava, right hepatic vein, middle hepatic vein and left hepatic vein, and 3DMAX was used to construct the models of 30°, 60°, 90° and 120° angles between right hepatic vein and inferior vena cava, which was based on the reconstructed models.The model was conducted with clinical parameters in terms of wall shear stress distribution, static pressure distribution and blood velocity. The results demonstrated that the differences between wall shear stress and static pressure had statistical significance with various angles between right hepatic vein and inferior vena cava by SPSS. The pathogenesis of membranous obstruction of inferior vena cava had a correlation with the angles between right hepatic vein and inferior vena cava.
In order to satisfy demands of massive and heterogeneous tumor clinical data processing and the multi-center collaborative diagnosis and treatment for tumor diseases, a Tumor Data Interacted System (TDIS) was established based on grid platform, so that an implementing virtualization platform of tumor diagnosis service was realized, sharing tumor information in real time and carrying on standardized management. The system adopts Globus Toolkit 4.0 tools to build the open grid service framework and encapsulats data resources based on Web Services Resource Framework (WSRF). The system uses the middleware technology to provide unified access interface for heterogeneous data interaction, which could optimize interactive process with virtualized service to query and call tumor information resources flexibly. For massive amounts of heterogeneous tumor data, the federated stored and multiple authorized mode is selected as security services mechanism, real-time monitoring and balancing load. The system can cooperatively manage multi-center heterogeneous tumor data to realize the tumor patient data query, sharing and analysis, and compare and match resources in typical clinical database or clinical information database in other service node, thus it can assist doctors in consulting similar case and making up multidisciplinary treatment plan for tumors. Consequently, the system can improve efficiency of diagnosis and treatment for tumor, and promote the development of collaborative tumor diagnosis model.
ObjectiveCell sheet technology(CST) demonstrates the innovation and advantage by overcoming some immanent shortcomings of traditional tissue engineering. To review the research progress of CST in oral tissue engineering. MethodsThe related home and abroad literature about CST and its application in stomatology was extensively reviewed and analyzed. ResultsCompared to the traditional tissue engineering technology, CST has the features of high seeding density, abundant matrix, good biological compatibility, and perfect operability, which can improve the survival rate of cell transplantation and promote functional reconstruction. It is reported that CST has been successfully used in the following fields, repair and reconstruction of periodontium, soft tissues of oral mucosa, and bones in maxillofacial region. ConclusionWith the development of CST and combined with the traditional tissue engineering technologies, it will promote the tissue engineering further progress in stomatology.
ObjectiveTo systematically review the efficacy and safety of linagliptin in the treatment of type 2 diabetes. MethodsWe searched The Cochrane Library, EMbase, PubMed, CNKI, CBM, VIP and WanFang data to collect randomized controlled trials (RCTs) on linagliptin versus placebo for type 2 diabetes from inception to January 2015. Two reviewers independently screened literature, extracted data and assessed the risk of bias of included studies. Then meta-analysis was performed using RevMan 5.3 software. ResultsA total of 16 RCTs were included. The results of meta-analysis showed:The linagliptin monotherapy group was superior to the placebo group in reducing HbA1c (MD=-0.76, 95%CI -0.85 to -0.66) and FPG (MD=-1.12, 95%CI -1.28 to -0.95), and there were no statistical differences in the incidence of overall adverse events (OR=0.86, 95%CI 0.70 to 1.06) and hypoglycemic (OR=1.19, 95%CI 0.36 to 4.01) between the two groups. The linagliptin combination treatment group (combined with other oral antihyperglycemic drugs) was superior to the placebo combination treatment group in reducing HbA1c (MD=-0.61, 95%CI -0.67 to -0.56) and FPG (MD=-0.79, 95%CI -0.96 to -0.63), and there was no statistical difference in the incidence of overall adverse events between the two groups (OR=1.07, 95%CI 0.92 to 1.24), however, the incidence of hypoglycaemic in the linagliptin combination treatment group was higher than that in the placebo combination treatment group (OR=1.55, 95%CI 1.19 to 2.02). ConclusionLinagliptin is effective and safe in the treatment of type 2 diabetes. Due to the limited quantity and quality of included studies, more high quality studies are needed to verify the above conclusion.
ObjectiveTo investigate the effect and safety of subgluteal approach continous sciatic nerve block with 0.2% ropivacaine for postoperative analgesia in calcaneal fracture patients. MethodsForty calcaneal fracture patients treated from May 2012 to January 2013 were randomly assigned to two groups:20 patients in continuous sciatic nerve block group (group CSB) and 20 patients in self-controlled intravenous analgesia group (group PCIA).Patients in group CSB were given subgluteal approach continuous sciatic nerve block,and PCA pump was connected to give 0.2% ropivacaine via continuous nerve block catheter continuously for analgesia.Patients in group PCIA were given PCA pump directly for self-controlled intravenous analgesia.The movement/rest VAS scores and Ramsay scores at 2,8,24,48 hours after surgery,the dose of other analgesia drugs after surgery,the satisfaction of patients and surgeons,and side effects were recorded. ResultsThe movement and rest visual analogue scale (VSA) scores and the dose of analgesia drugs in group CSB were significantly lower than group PCIA at all time points (P<0.05).The satisfaction of patients and surgeons in group CSB was higher than group PCIA (P<0.05). ConclusionCompared with self-controlled intravenous analgesia,subgluteal approach continuous sciatic nerve block with 0.2% ropivacaine can provide better and safer postoperative analgesia for calcaneal fracture patients.
Pulse waves contain abundant physiological and pathological information of human body. Research of the relationship between pulse wave and human cardiovascular physiological parameters can not only help clinical diagnosis and treatment of cardiovascular diseases, but also contribute to develop many new medical instruments. Based on the traditional double elastic cavity model, the human cardiovascular system was established by using the electric network model in this paper. The change of wall pressure and blood flow in artery was simulated. And the influence of the peripheral resistance and vessel compliance to the distribution of blood flow in artery was analyzed. The simulation results were compared with the clinical monitoring results to predict the physiological and pathological state of human body. The result showed that the simulation waveform of arterial wall pressure and blood flow was stabile after the second cardiac cycle. With the increasing of peripheral resistance, the systolic blood pressure of artery increased, the diastolic blood pressure had no significant change, and the pulse pressure of artery increased gradually. With the decreasing of vessel compliance, the vasoactivity became worse and the pulse pressure increased correspondingly. The simulation results were consistent with the clinical monitoring results. The increasing of peripheral resistance and decreasing of vascular compliance indicated that the incidence of hypertension and atherosclerosis was increased.
ObjectiveTo systematically review the association between the insertion/deletion (I/D) polymorphism of angiotension-converting enzyme (ACE) gene and the athletes' performance in power sports. MethodsDatabases including PubMed, EMbase, CNKI, CBM, VIP and WanFang Data were searched up to August 1st, 2015 to collect case-control studies about the association between ACE I/D polymorphism and the athletes' performance in power sports. Two reviewers independently screened literature, extracted data and assessed the risk of bias of included studies. Then, meta-analysis was performed using RevMan 5.3 software. ResultsA total of 26 case-control studies involving 2032 athletes and 10600 controls were included. The results of meta-analysis showed that no significant association was found between ACE I/D polymorphism and the athletes' performance in power sports (DD vs. DI+Ⅱ:OR=1.05, 95%CI 0.81 to 1.36, P=0.70; DD+DI vs. Ⅱ:OR=1.03, 95%CI 0.82 to 1.29, P=0.80; DD vs. Ⅱ:OR=1.04, 95%CI 0.74 to 1.47, P=0.82; DI vs. Ⅱ:OR=0.99, 95%CI 0.81 to 1.22, P=0.96; D vs. I:OR=1.04, 95%CI 0.88 to 1.24, P=0.62). Also, in subgroup analysis by ethnicity, no significant association was found between ACE I/D polymorphism and the performance of athletes of difference races in power sports. Conclusions Current evidence indicates that the ACE I/D polymorphism may not associate with the performance of athletes in power sports. Due to the quality limitations of included studies, more high quality case-control or cohort studies are needed to verify the above conclusions.