ABSTRACT
Chemotherapy is one of the main treatments for malignant tumors, aiming to kill tumor cells and improve patient survival. However, the new study have found that chemotherapy also promotes distant metastasis of tumors while treating tumor, and the article will give further new meaning to "chemotherapy side effects." On the other hand, tumor metastasis is the main cause of short-term survival of patients. Inhibition of tumor metastasis caused by chemotherapy is a hot topic that should be widely concerned. Modern research suggests that chemotherapeutic drugs promote tumor metastasis by inducing changes in the biological characteristics of tumors and causing a series of "host reactions". The article summarizes the mechanisms of chemotherapy-induced tumor metastasis in combination with the seed and soil theory related to tumor metastasis.
ABSTRACT
Ultra-high performance liquid chromatography(UPLC) is a new liquid chromatography technology,which developed on the basis of high performance liquid chromatography(HPLC).It has the characteristics of super high efficiency,high separation degree and high sensitivity,and has been widely used in the analysis of components in traditional Chinese medicine,the studies on metabolomics,establishment of fingerprint chromatogram,determination of unknown compounds combined with mass spectrometry and other detectors,etc.In this paper,the authors reviewed the application of UPLC in the field of traditional Chinese medicine through a review of the literature in the past 5 years,and summed up its relative advantages and development prospects,in order to provide scientific guidance and basis for pharmaceutical workers to make better use of UPLC technology.
ABSTRACT
@#With the development of society, the new requirements for visual health are put forward. In the past, visual acuity and contrast sensitivity were used to evaluate the visual function of human eye, but it is subjective and limited, not really reflecting human eye's visual function. In order to pursue a more sensitive and accurate objective evaluation method, experts at home and abroad make some exploratory research on visual quality. The study confirmed that the scattering is an independent factor affecting the visual quality of human eye, it can make a more scientific evaluation of visual function.This article summarizes the influence of scattering for the visual quality of human eye, according to related research at home and abroad in recent years.