AIM: To set up a set of stretch equipment in vitro to study the mechanism of cadiomyocyte hypertrophic response to stretch. METHODS: The gel stretch device was made from silica gel and organic glass, etc. Ang Ⅱ was m...AIM: To set up a set of stretch equipment in vitro to study the mechanism of cadiomyocyte hypertrophic response to stretch. METHODS: The gel stretch device was made from silica gel and organic glass, etc. Ang Ⅱ was measured by radioimmunoassay. The protein synthesis was tested by MTT. These two parameters were used to assess the effect of this device. RESULTS: Under 20% stretch force for 12h or 24h, the protein synthesis was obviously increased and the auto secretion of Ang II also rose. But the number of cardiomyocytes or the release of LDH had no obvious difference between the stretch and non stretch group. CONCLUSION: Our primary application of this gel stretch device shows that in vitro it can successfully exert mechanical stimulation on cardiomyocytes and induce the hypertrophic response of cardiomyocytes.展开更多
近年来功能磁共振成像(functional Magnetic Resonance Imaging,fMRI)技术在人类脑科学研究中得到了越来越广泛的应用,用于fMRI的人体感官刺激手段和装置也在不断发展。如何准确认识各种fMRI研究对刺激装置的不同需求,并针对其开发设计...近年来功能磁共振成像(functional Magnetic Resonance Imaging,fMRI)技术在人类脑科学研究中得到了越来越广泛的应用,用于fMRI的人体感官刺激手段和装置也在不断发展。如何准确认识各种fMRI研究对刺激装置的不同需求,并针对其开发设计适用的刺激装置,正成为脑功能研究中亟需解决的一个难题。本文简单介绍了fMRI对刺激装置的需求背景,着重分析评价了fMRI研究中各类刺激装置的研发和使用现状,归纳了目前fMRI刺激装置在开发和应用方面存在的问题,并基于上述内容对其发展趋势做出展望。本文着力于对该领域作一个全景式的概括,使相关人员通过阅读本文获得对该领域的整体把握。展开更多
文摘AIM: To set up a set of stretch equipment in vitro to study the mechanism of cadiomyocyte hypertrophic response to stretch. METHODS: The gel stretch device was made from silica gel and organic glass, etc. Ang Ⅱ was measured by radioimmunoassay. The protein synthesis was tested by MTT. These two parameters were used to assess the effect of this device. RESULTS: Under 20% stretch force for 12h or 24h, the protein synthesis was obviously increased and the auto secretion of Ang II also rose. But the number of cardiomyocytes or the release of LDH had no obvious difference between the stretch and non stretch group. CONCLUSION: Our primary application of this gel stretch device shows that in vitro it can successfully exert mechanical stimulation on cardiomyocytes and induce the hypertrophic response of cardiomyocytes.
文摘近年来功能磁共振成像(functional Magnetic Resonance Imaging,fMRI)技术在人类脑科学研究中得到了越来越广泛的应用,用于fMRI的人体感官刺激手段和装置也在不断发展。如何准确认识各种fMRI研究对刺激装置的不同需求,并针对其开发设计适用的刺激装置,正成为脑功能研究中亟需解决的一个难题。本文简单介绍了fMRI对刺激装置的需求背景,着重分析评价了fMRI研究中各类刺激装置的研发和使用现状,归纳了目前fMRI刺激装置在开发和应用方面存在的问题,并基于上述内容对其发展趋势做出展望。本文着力于对该领域作一个全景式的概括,使相关人员通过阅读本文获得对该领域的整体把握。
