Vascular biomechanics mainly explores how vascular cells perceive mechanical stimuli,how mechanics affects the development of diseases,and the exploitation of various mathematical models to analyze the effects of mechanical factors on diseases.In recent years,researches in the field of vascular biomechanics are developing rapidly,and various research teams have analyzed the mechanical and biological processes of blood vessels from different directions,in order to gain a deeper understanding of the regulatory mechanisms of vascular biomechanical factors affecting the progression of various vascular diseases,and provide a theoretical basis based on the mechanobiology for the prevention and treatment of cardiovascular and cerebrovascular diseases.This article summarizes and discusses the recent research hotspots and emerging trends in the field of vascular mechanobiology based on domestic and foreign expert teams and combined with the work of this research team,thus providing a systematic framework for grasping hotspots and exploring new research directions in the field of vascular mechanobiology.

Mechanobiology focuses on a series of important physiopathological processes,such as how cells perceive different mechanomechanical stimuli,the process of intracellular mechanotransduction,and how mechanical signals determine the behavior and fate of cells.From the initial stage of embryogenesis,to developmental biology and regenerative medicine,or even through the whole life process,mechanical signaling cascades and cellular mechanical responses in mechanobiology are of great significance in biomedical research.In recent years,research in the field of mechanobiology has undergone remarkable development.Several scientific consortia around the world have been analyzing mechanobiological processes from different perspectives,aiming to gain insights into the regulatory mechanisms by which mechanical factors affect cell fate determination.In this article,we summarized and reviewed the topics that have attracted more research interests in recent years in the field of mechanobiology,for example,arterial blood vessels,stem cell,and ion channel.We also discussed the potential trends that may emerge,such as nuclear deformation,fibrous extracellular matrix,tumor mechanobiology,cellular mechanotransduction,and piezo ion channels.In addition,we put forward new ideas concerning the limitations of mechanism research and the importance of big data analysis and mining in this field,thereby providing objective support and a systematic framework for grasping the hot research topics and exploring new research directions in the field of mechanobiology.

BACKGROUND:Now researches on psychiatric disease and molecular heredity are becoming more and more gradually because of the development of molecular genetics,but conclusions are controversial,and for the time being there are no reports about whether there are regional differences and ethnical differences in the distribution of genotype frequency of 5-hydroxytryptamine 2A receptor gene T102C.OBJECTIVE:Researches on the geographic distribution of genotype frequency of 5-hydroxytryptamine 2A receptor gene T102C of schizophrenics people.DESIGN:Sample survey and observation with schizophrenics selected as subjects.SETTING: Mental Department, Changzhou Peace Hospital.PARTICIPANTS: The experiment was completed in The No.102 Hospital of PLA from January 1999 to August 2003.Totally 177 people of Han nationality (Age: 18-45; Duration of illness: 1 month-20 years) from different provinces and autonomous regions of China in compliance with diagnostic standards of Psychiatric Disease Classification and Diagnosis Standards of China (The 3rd version) were selected as the subjects.METHODS:The blood samples from 117 schizophrenics were given test of polymerase chain reaction(PCR),and the distribution differences of genotype frequency of 5-hydroxytryptamine receptor gene of normal control population from different provinces and autonomous regions were compared. DNA were abstracted by means of phenol chloroform, amplification and cataphoresis test of polymerase chain reaction of target DNA,primer sequence of gene segment amplification of 5-hydroxytryptamine (5-HT) 2A receptor gene T102C: 5'-TCT GCT ACA AGT TCT GGC TT-3', 5 '-CTG CAG CTT TTT CTC TAG GG-3'; Reaction system of 50 μL, DNA 0.5 μg,Primer 50 pmol,TagDNA enzyme 2U were added with dNTP to the final concentration of 200 μmol/L.MAINOUTCOMEMEASURES: DNA cataphores is test of schiophrenicanddistributionofgenotypefrequencyof5-hydroxytryptamine 2A receptor gene.RESULTS: The distribution of genotype frequency of 5-hydroxytryptamine(5-HT) 2A receptor gene: A1A1, 0.07-0.03; A1A2, 0.50-0.72; A2A2,0.17-0.29. Correlation analysis of genotype frequency in different regions:A1A1, x2=4.44, P=0.617 1, P ＞ 0.05;A1A2, x2=1.14, P=0.942 2, P ＞ 0.05;A2A2, x2=0.93, P=0.985 7, P ＞ 0.05.CONCLUSION: The geographic distributions of genotype frequency of 5-hydroxytryptamine 2A receptor gene T102C of schizophrenics of the Chinese Han nationality people were comparatively even.