Objective To analyze dynamic features of TCM syndrome elements according to the neuropsychological characteristics of cognitive function impairment after ischemic stroke.Methods The hospitalized cerebral infarction patients without dementia were evaluated dynamically with the mini-mental state examination (MMSE) and Montreal Cognitive Assessment (MoCA) (Beijing Version) after IQCODE screens at different phase points.And they were divided into groups according to the severity of cognitive function impairment.The occurring frequency of TCM syndrome elements at all phase points for diagnosis was compared.Results The phase points and TCM syndrome elements closely related with the cognitive function impairment after ischemic stroke were as following:the 3rd day with fire and yin deficiency,the 7th day with yin deficiency,the 1st month with fire,phlegm,and blood stasis,and the 3rd month with fire,phlegm,blood stasis,qi deficiency,and yin deficiency.Conclusion The neuropsychological characteristics of cognitive function impairment of ischemic stroke are closely related with TCM syndrome elements and their evolvement as well as their different combinations.

Hepatocellular carcinoma has a low early diagnostic rate, and there is a lack of highly sensitive and specific tumor markers. In recent years, fluid biopsy technique, represented by circulating free DNA (cfDNA), has become an auxiliary method for the diagnosis of cancer and has attracted more and more attention due to its advantages of noninvasiveness, convenience, and repeatability. With reference to the recent studies in China and foreign countries, this article summarizes and analyzes the advances in cfDNA in the diagnosis and treatment of hepatocellular carcinoma from the aspects of biological characteristics, detection techniques, and clinical application, so as to provide a basis for clinical diagnosis and treatment.