Objective To explore the effects of resistance exercise on intradialytic blood pressure variability and the lowest blood pres-sure. Methods From September, 2015 to March, 2016, 80 patients with intradialytic hypotension frequently during maintenance hemodialy-sis were included, and divided into control group (n=40) and intervention group (n=40) by drawing lots. Both groups accepted routine nurs-ing, while the intervention group accepted resistance exercise during hemodialysis. The coefficient of variation (CV) of blood pressure and the lowest blood pressure were compared twelve weeks later. Results The CV of systolic blood pressure was less in the intervention group than in the control group (t=-4.356, P<0.001), while the lowest blood pressure, both systolic and diastolic, were more (t>4.122, P<0.001). Conclusion Resistance exercise may reduce the intradialytic systolic blood pressure variability and increase the lowest blood pressure in pa-tients with frequent intradialytic hypotension.

The rapid development of artificial intelligence technology has achieved a breakthrough in many disciplines. Artificial intelligence has a far-reaching significance in promoting the further development of laboratory medicine. At present, artificial intelligence technology has gradually penetrated into all processes of laboratory work, such as laboratory data processing, laboratory data mining and laboratory quality control. It not only improves efficiency, but also provides important information for clinical diagnosis and treatment supporting information. The functions of laboratory physicians are likely to undergo corresponding transition and adjustment in the future. Therefore, it is a general trend to promote the development and leap of the next generation of laboratory medicine by artificial intelligence, and the future of laboratory medicine will usher in the "artificial intelligence era".

Objective To study the application efficacy of ultrasound-guided catheter lavage in patients with severe pancreatitis surgery. Methods 60 patients with severe pancreatitis from January 2009 to March 2013 in our hospital were randomly and equally divided into the experimental group and the control group. Patients of the control group were merely treated with comprehensive treatment after severe acute pancreatitis operation,and Patients of the experimental group were given ultrasound-guided catheter lavage treatment additionally. Hospital stays,clinical examination indicators and clinical effects of the two groups were analyzed. Results Hospital stay of experimental group was significantly shorter than the control group (P<0. 05);the temperature and heart rate of experimental group was significantly lower than con-trol group (P<0. 05);leukocyte,serum amylase and urine amylase of the experimental group were significantly lower than the control group (P<0. 01). The total effective rate of experimental group (93. 3%) was significantly higher than the control group (66. 7%),which means a statistically difference (P<0. 01). Conclusion Ultrasound-guided catheter lavage has good results for patients with severe pancreatitis surgery,and it is worthy of clinical application.

Objective To investigate the changes of homocysteic acid (Hcy) and C-reactive protein (CRP) levels in blood plasma of elderly patients with coronary heart disease and elucidate the risk factors of elderly patients with coronary heart disease.Methods 90 elderly patients with coronary heart disease were divided into 3 groups:stable angina pectoris group (SAP)(n=30),unstable angina pectoris group(UAP)(n=30),acute myocardial infarction group(AMI)(n=30).30 healthy elderly persons elder than 60 years old were enrolled as control group.Venous blood of all persons was harvested during empty stomach and plasma was separated.Then plasma Hcy and CRP were determined.Results The TC and TG levels in the three elderly coronary heart disease groups were significantly higher than those in control group (P

A suitable ultra-high performance liquid chromatography coupled with tandem mass spectrometry (UPLC-MS/MS) method was developed for the determination of 11 mycotoxins with isotope internal standard in malt. The mycotoxins in malt were extracted and purified by one-step ultrasonic extraction procedure using acetonitrile/water/acetic acid (80 : 19 : 1), and then detected and confirmed by UPLC-MS/MS, and quantified by isotope labeled AFB1 ([13C17]-AFB1) and ZEN ([13C18]-ZEN) internal standards. Rapid separation of the 11 mycotoxins was successfully achieved on a Phenomenex Kinetex C18 column (100 mm x 2.1 mm, 2.6 μm) with gradient elution using the mobile phase of methanol containing 0.1% formic acid and 2 mmol x L(-1) ammonium acetate in water. Simultaneous acquisition was performed in multiple reaction monitoring (MRM) mode with electrospray ionization (ESI) source operated in both positive and negative ionization modes. The established method provided a good linearity for the 11 mycotoxins within their respective linear ranges with correlation coefficients all higher than 0.999 1. The average recoveries ranged from 75.0% to 117.0% with relative standard deviations (RSDs) below 5.1%. The limits of detection (LODs) and quantitation (LOQs) ranged from 0.05 to 30 μg x kg(-1) and 0.15 to 87.5 μg x kg(-1), respectively, which were below the maximum residue levels (MRLs) set by the European Union. Twenty malt samples were analyzed and nine samples were detected with mycotoxins, which were confirmed according to the same fragment ions found in positive samples and the standards at the same retention time. This study has demonstrated that the one-step extraction procedure of mycotoxins from complex matrices coupled to UPLC-MS/MS method is simple, quick, accurate and sensitive for quantitative and qualitative analysis of multiple mycotoxins in malt.

OBJECTIVE: To research for the identification of Dongchongxiacao [Cordyceps sinensis( Berk.) Sacc.] and its counterfeits-processed materials from Cordyceps taii Liang et Liu. METHODSE: On the basis of the specimens of Dongchongxiacao and four types of counterfeits, the macroscopic and microscopic identification methods were studied, including the comparison of the macroscopic features, such as insertion position of stroma, colour of caterpillar part, abdominal leg, and the microscopic features such as the transverse section of the stroma, the caterpillar's body wall and the planta of abdominal leg. RESULTS: The differences between Dongchongxiacao and four types of counterfeits were obvious in macroscopic and microscopic features. CONCLUSION: Dongchongxiacao and its counterfeits-processed materials from Cordyceps taii Liang et Liu. can be identified by the differernces of macroscopical and microscopical fetures.

Objective: To explore the active compounds and integrative mechanism of Scutellaria barbata in treatment of cancer by using network pharmacology. Methods: The active components were screened by five rules of durability. The target proteins of S. barbata were obtained by molecular docking. The main diseases related to S. barbata were obtained by Comparative Toxicogenomics Database (CTD). Then, the compound-target-disease interaction network was built using cytoscape 3.40. After protein-protein interaction analysis, Biological Information Annotation Databases (DAVID) was used to analyze the biological metabolic pathway of target proteins. Results: A total of 72 compounds from S. barbata acted with more than 14 cancer-related targets, and diterpenoids including scutelinquninne D, barbatellarine E, and scutebarbatines A were the main active molecules of S. barbata. Network analysis showed that the active compounds of S. barbata can regulate VEGF signaling pathway, Fc epsilon RI signaling pathway, and FoxO signaling pathway through acting with the key targets protein, such as protein tyrosine phosphatase 1B (PTP1B), carbonic anhydrase 2 (CA2), cyclic protein dependent kinases 2 (CDK2), retinoic acid α receptor (RXRA) and so on. Finally, S. barbata regulated the process of inflammation and tumor angiogenesis for its anticancer effect. Conclusion: S. barbata can show the multi-target and multi-pathway synergistic antitumor activity through anti-inflammation and inhibiting tumor angiogenesis.

Objective: To investigate the effect of leech injection on thrombosis and plasma tissue plasminogen activator (t PA) and its inhibitor (PAI) in the thrombosis model of mice. Methods: The different dose leech injection of different doses were given to mice in different groups for 7 days respectively. Thrombosis was induced in mice by carrageenan. The plasma t PA and PAI activity were detected by chromogennic substracte analysis.Results: The average thrombosis length of tail in the groups of leech injection were significantly shorter than the length in the groups of thrombosis control. Compared with the group of thrombosis control, the plasma PAI activity in the leech injection groups was lower. Conclusions: The leech injection can reduce thrombosis in mice. The mechanism might be associated with reducing the release of PAI.

Objective:To explore antitumor mechanism of a recombinant vaccinia virus expressing human carcinomembryonic antigen(rV CEA).Methods:C57bl/6 mice were immunized three times with rV CEA.Six weeks later,the splenocytes from rV CEA immunized donors were adoptively tranfered in sublethally irradiated CEA + HePa bearing recipients,meanwhile the antiumor effect of the donor splencytes in virtro was detected.Results:Splenocytes from rV CEA immunized donors expressed strong antiumor activity in CEA positive tumorbearing recipients,whereas W VV immunized and nonimmune donor cell did not.The antiumor activity was abolished when immune T cells were depleted before splencytes transfer.Conclusion:It was demonstrated that antiumor acivity induced by rV CEA was essentially mediated by immune T cells which were activated by CEA specific immune response.Adoptive immunotherapy strategies may have implications for both the study of rV CEA and the development of potential clinical applications for tumor immunotherapy.