Animals ; Cyclic AMP ; metabolism ; Cyclic GMP ; metabolism ; Male ; Myocytes, Cardiac ; metabolism ; Physical Conditioning, Animal ; Rats ; Rats, Sprague-Dawley ; Swimming

Animals ; Calcineurin ; metabolism ; Diet, High-Fat ; Dietary Fats ; administration & dosage ; Male ; Myocardium ; metabolism ; Physical Conditioning, Animal ; physiology ; Random Allocation ; Rats ; Rats, Sprague-Dawley ; Superoxides ; antagonists & inhibitors

Objective:The protein of missing in metastasis (MIM), a novel discovered actin-binding scaffold protein, is involved in actin cytoskeleton rearrangements, signal transduction and transcriptional activation, and has close association with tumor growth, invasion, and metastasis. Recently, much focus has been placed on the role of MIM performed in tumor progression. In recent years, more and more attention is focused on its action mechanism in various kinds of tumors, which has a wide foreground of investigation. In this paper, we make a comprehensive review of the association of MIM with cancer development, in order to provide the theoretical basis and new strategies for application of MIM proteins in cancer diagnosis and treatment.

The development of orthopedic fixing materials is a most basic and active aspect in orthopedic injury treatment.Their invention and application of early manual splints,gypsum bangs,hot-shaped splints,polymeric bangs and so on,greatly promoted orthopedic fixing performance and varied the strategies of orthopedic injury treatment.By repeated experiments and clinical trials,we developed a new orthopedic fixing material using polymeric materials.Convenient to operate,easy to remove,auto-shaped,X ray transmittable,water proof and durable,it not only satisfies the needs of fixing different parts of the body,but also remedies the defects of earlier fixing materials,and therefore has gained an extensive application as the best fixing material for the treatment of clinical and battle-field bone fractures.Further studies on it will surely better its properties,reduce its cost and lead it to a wider application.

Objective To study the effect of low molecular weight heparin on the growth and metastasis of hepatocarcinoma in vivo Methods Metastatic model simulating human hepatocarcinoma was established by orthotopic implantation of the tumor tissue into nude mice Animals were randomly divided and submitted to different treatment groups: control group treated with nornal saline, chemotherapy group with 5 FU and CDDP i p , Fragmin group (low molecular heparin), combination group After 5 weeks of treatment, tumor volume、 microvessel density (MVD)、 VEGF smoothmuscle actin (SMA) and metastasis in Fragmin group significantly decreased and tumor inhibitive rate increased ( P

A rapid and convenient ultra high performance liquid chromatography-tandem mass spectrometry (UPLC-MS / MS) method for analysis of ribavirin and its two main kinds of metabolites, 1,2,4-triazole-3-carboxamide (TCONH2 ) and 1-β-D-ribofuranosyl-1,2,4-triazole-3-carboxylic acid (RTCOOH), in fresh eggs has been developed and validated. The sample was extracted with acetonitrile water (9 ∶ 1, V/ V), added N-hexane to move liposoluble substances, after centrifugation, the upper solvent was cleaned-up by C18 and GCB, then determined by UPLC-MS / MS coupled with Agilent ZORBAX SB-Aq column (100 mm×3. 0 mm, 1. 8 μm). Over the concentration range of 2. 0-200. 0 μg / L (0. 5-200. 0 μg / L and 5. 0-200. 0 μg / L) for ribavirin (TCONH2 and RTCOOH) in fresh egg matrix, the correlation coefficients (R2 ) of the calibration curves were above 0. 99, and the limits of detection (LODs) were 0. 54 μg / L (0. 09 and 1. 54 μg / L). The limits of quantitation (LOQs) were 1. 79, 0. 31 and 5. 13 μg / L, respectively. At three spiked concentration levels of 5. 0, 10. 0 and 50. 0 μg / L, the recoveries of ribavirin and RTCOOH ranged from 96. 1% to 99. 6%and 42. 9% to 58. 3% . And at three spiked concentration levels of 0. 5, 2. 0 and 5. 0 μg / L, the recoveries of TCONH2 ranged from 75. 9% to 106. 7% . The results of the determination in various real samples showed that the method is simple, accurate, rapid and suitable determination of ribavirin and its two main kinds of metabolites in fresh eggs.

Obiective To study controUing method for curing time of the materials based on isocyanate, and perfect making means and operating rules of transmitting apparatus for the wounded, Methods According to the controlling principles of the rate of chemical reaction, the influencing factors' were studied such as catalyzer, ambient temperature, mixture level of materials and materials volume by experiment. Results By the results of experiments, ambient temperature hasn't an effector impact on eufing time of isocyanate, catalyzer and mixture level of materials only have a little effect or impact on initial reaction time, but materials volume is an important factor of all. Conclusion By the means of experiments, the curing time of isocyanate is only influenced by the volume of materials, and the character is very useful to transmitting apparatus for the wounded in field battle or on-site emergency rescue.

Objective To explore the effect of surgical treatment on primary gastrointestinal non-Hodgking lymphoma(NHL) in children.Methods Nine cases of clinical and follow-up data of primary gastrointestinal NHL were studied retrospectively to evaluate the effect of surgical treatment on primary gastrointestinal NHL in children.Results Seven cases were male and 2 cases were female.The mean age was(5.59?3.27)years old.The clinical manifestation included abdominal mass (7 cases),abdominal pain (5 cases),fever (2 cases),haematemesis and melena (2 cases),constipation (1 case) and paroxysmal abdominal pain with vomiting (1 case).Nine cases were diagnosed as primary gastrointestinal NHL,including 1 case of intussusception,1 case of acute appendicitis,2 cases of gastrointestinal obstruction,2 cases of gastrointestinal bleeding and 3 cases of abdominal mass.One case received the operation of intussusception reduction,tumor resection and intestinal anastomosis.One case received appendectomy.One case received the operation of tumor biopsy and transverse colon colostomy.Six cases received laparotomy.Six cases were diagnosed as Burkitt lymphoma.One case was anaplastic large cell lymphoma and 2 cases were diffuse large B-cell lymphoma.One case was at stage Ⅰ,1 case was at stage ⅠE,2 cases were at stage Ⅱ,3 cases were at stage ⅡE and 2 cases were at stage Ⅲ.Nine patients had received operation.One case died after operation and 8 cases had received combined chemotherapy.The 1 and 3 years survival rates were 75.0% and 37.5%,respectively.Conclusions Acute abdomen is often the first symptom of primary gastrointestinal NHL in children and comprehensive surgical treatment is an effective procedure for it.

Objective To investigate the accuracy of transthoracic echocardiography (TTE) for diagnosing left cardiac valve calcification in elderly patients.Methods In this retrospective study,410 elderly patients died in Beijing Hospital from 1982 to 2015 were collected.They all had full pathological cardiac valve examination data in the autopsy examination and full mortem TTE data.They were classified into three groups according to the year of death:group 1982-1995,group 1996-2005 and group 2006-2015,as well as into three groups according to the age of death:group 60-75,group76-90 and group 91-106.Results The sensitivity,specificity,diagnostic coincidence rate,positive likelihood ratio (PLR),negative likelihood ratio (NLR),positive predictive value (PPV) and negative predictive value(NPV) of TTE versus autopsy pathological findings as golden standard for diagnosing left cardiac valve calcification were 88.6％,28.2％,43.7％,1.234,0.405,0.298 and 0.878.Compared with group 1982-1995,the group 1996-2005 and group 2006-2015 showed the sensitivity and PPV of TTE versus golden standard autopsy findings for diagnosing left cardiac valve calcification in the elderly were increased while the specificity,PLR,NLR and NPV were decreased.Compared with group 60-75,the group 76-90 and group 91-106 showed that the sensitivity and PPV of TTE versus golden standard autopsy findings for diagnosing left cardiac valve calcification were increased,while the specificity and diagnostic coincidence rate were decreased.The sensitivity,specificity,diagnostic coincidence rate,PLR,NLR,PPV,NPV of TTE versus golden standard autopsy findings for the diagnosis of aortic valve calcification and mitral valve calcification in the elderly were 88.2％ and 44.0％,30.8％ and 75.3％,42.7％ and 71.5％,1.275 and 1.780,0.382 and 0.744,0.250 and 0.198,0.909 and 0.906,respectively.Conclusions TTE provides high sensitivity for diagnosing left cardiac valve calcification in the elderly,especially for diagnosing the aortic valve calcification,but the specificity is not satisfactory.

AIMRats cardiovascular expression of CGRPmRNA surveyed after an eight-week swimming training, and molecular mechanism of exercise-induced adaptation were studied.

METHODS24 purebred male SD rats were divided randomly into three groups (n = 8): control (CR), exhaust (ER), train (TR). After swimming training left ventricular muscle and main artery arch were extracted, we inspected the expression of CGRPmRNA by RT-PCR.

RESULTS(1) Comparing with the control group, once exhausting exercise had no significant effect on cardiovascular expression of CGRPmRNA. (2) Comparing with the control group, long-term aerobic swimming training upregulated significantly cardiac expression of CGRPmRNA.

CONCLUSIONLong-term aerobic training induced benign cardiac adaptation in molecular level. Long-term aerobic swimming training had no significant effect on vascular expression of CGRPmRNA.

Animals ; Calcitonin Gene-Related Peptide ; genetics ; metabolism ; Cardiovascular System ; metabolism ; Male ; Physical Conditioning, Animal ; RNA, Messenger ; genetics ; Rats ; Rats, Sprague-Dawley ; Swimming ; physiology