ABSTRACT
Tumor metastasis is an important cause of tumor treatment failure. Its molecular mechanism is closely related to tumor cells remodeling immune cells and immunosuppressive microenvironment, so as to create a suitable soil for tumor cell invasion and growth. "Huoxue Huayu" is one of the important therapeutic principles in cancer treatment, but the influence of Huoxue drugs on tumor metastasis has been controversial in clinical application. In this paper, we systematically summarized the comparative study of Huoxue drugs and Yiqi Huoxue drugs in tumor metastasis in recent years, and discussed the differences of molecular mechanisms of Huoxue drugs and Yiqi Huoxue drugs in anti-tumor metastasis from the perspective of immune remodeling, so as to provide scientific basis for clinical rational application of Huoxue drugs and Yiqi Huoxue drugs.
ABSTRACT
Objective:To explore the neuroprotective effect and mechanism of Buyang Huanwu Tang (BYHWT) on experimental autoimmune encephalomyelitis (EAE) at different stages. Method:The 36 female C57BL/6 mice were immunized subcutaneously with myelin oligodendrocyte glycoprotein peptides (MOG35-55),then randomly divided into 9, 17, 28 d EAE control group. Each BYHWT group was orally given drugs on the 3rd day after immunization (50 g·kg-1·d-1), and EAE control group was given the same volume of normal saline in the same way once a day for 9, 17 and 28 d after immunization. The effect of BYHWT on EAE mice was observed with internationally accepted clinical score. Brain and spinal cord specimens were collected at 9, 17 and 28 d after immunization. The neuroprotective effect of BYHWT was observed by hematoxylin-eosin(HE)staining and solid blue staining (LFB). The expressions of BDNF and GAP-43 in spinal cord and brain were detected by Western blot. Result:After treatment, BYHWT can significantly inhibit myelitis cell infiltration and alleviate myelin loss. Compared with EAE group, the expression of Nogo-A in the spinal cord of each BYHWT group was significantly down-regulated (PPPPConclusion:BYHWT can improve the local nerve growth microenvironment and promote the expression of NTFs, reduce the expressions of neuroinhibitory factors, and play a role in neuroprotection.
ABSTRACT
Oligosaccharide isomers were distinguished by electron capture dissociation Fourier transform ion cyclotron resonance mass spectrometry ( ECD-FT-ICR-MS ) in combination with utiliZing alkali, alkaline earth, and transition metals ( Na+, Ca2+, Ba2+, Mg2+, Mn2+ and Co2+) as charge carriers in electrospray.Maltoheptaose, mannohexaose and laminarihexaose were taken as examples to investigate influence of metal ions on the extent of oligosaccharide fragmentation.The same types of fragmentation ions ( 0,2 A and 2,4 A) were obtained for barium- and calcium-adducted maltoheptaose.Mg2+ and Mn2+ had the similar influence ( 0,2 A, 2,4 A and 2,5 A ).Three cross-ring cleavage ions ( 1,4 A, 2,4 A and 2,5 A ) were generated in the spectrum of cobalt-associated maltoheptaose.But in the case of doping Na+into maltoheptaose, only 0,2 A ion was detected.It was found that the signals in the spectra of mannohexaose and laminarihexaose were worse than that in the spectrum of maltoheptaose, probably resulting from different numbers of adducted metal ions.The isomers, mannohexaose and laminarihexaose could be distinguished by ECD-MS in conjunction with the addition of Ca2+, Mg2+ or Co2+.The addition of Ca2+ was the best choice for analysis of oligosaccharides.
ABSTRACT
Objective To explore the clinical application effects of the logistics robot as innovative mode in consumables management in operating room.Methods Clinical application experiment using self-designed medical logistics robot was conducted.During single point distribution,indicators including the average time/trip of logistics robots,the error rate of transporting goods,replacing the workload of the distributor,the incidence of cost loss,the right rate of avoiding pedestrians,the right rate of avoiding obstacles,the number of being lost,and the speed of operational reaction were recorded.The time of picking(T1),the delivery time(T2),and the check time(T3) of test between logistics robot and manual operation were compared.Results Experiment results were obtained from 422 trips using logistics robot during single point distribution,and the average time for each trip was 1.75 min.one logistics robot was able to take the workload of 3 to 4 people;logistics robot avoided pedestrians for 420 times;it avoided obstacles for 414 times,it was lost for 13 times,and its speed of operational reaction was normal for 419 times;the comparison results between logistics robot and manual operation showed that T1,P＞0.05;T2 and T3,P＜ 0.01,and the distribution time using robot was less than that of manual operation.Conclusion Using logistics robot for distribution of high value consumables can shorten the time of applying consumables,operation with high distribution accuracy and information precision.
ABSTRACT
Objective To explore the clinical application effects of the logistics robot as innovative mode in consumables management in operating room.Methods Clinical application experiment using self-designed medical logistics robot was conducted.During single point distribution,indicators including the average time/trip of logistics robots,the error rate of transporting goods,replacing the workload of the distributor,the incidence of cost loss,the right rate of avoiding pedestrians,the right rate of avoiding obstacles,the number of being lost,and the speed of operational reaction were recorded.The time of picking(T1),the delivery time(T2),and the check time(T3) of test between logistics robot and manual operation were compared.Results Experiment results were obtained from 422 trips using logistics robot during single point distribution,and the average time for each trip was 1.75 min.one logistics robot was able to take the workload of 3 to 4 people;logistics robot avoided pedestrians for 420 times;it avoided obstacles for 414 times,it was lost for 13 times,and its speed of operational reaction was normal for 419 times;the comparison results between logistics robot and manual operation showed that T1,P＞0.05;T2 and T3,P＜ 0.01,and the distribution time using robot was less than that of manual operation.Conclusion Using logistics robot for distribution of high value consumables can shorten the time of applying consumables,operation with high distribution accuracy and information precision.