纳米孔DNA测序技术是一类重要的DNA测序技术,可以实现长链DNA序的快速读取.一个DNA分子可以以毫秒每碱基,甚至更快的速度通过纳米孔,从而有可能实现在1 h以内完成人类全基因组测序.与下一代DNA测序技术(next generation DNA sequencing,...纳米孔DNA测序技术是一类重要的DNA测序技术,可以实现长链DNA序的快速读取.一个DNA分子可以以毫秒每碱基,甚至更快的速度通过纳米孔,从而有可能实现在1 h以内完成人类全基因组测序.与下一代DNA测序技术(next generation DNA sequencing,NGS)相比较,纳米孔DNA测序技术可以实现单分子测序,无需使用酶进行样品扩增.纳米孔DNA测序技术是后NGS时代极具潜力的DNA测序技术.本文将介绍纳米孔DNA测序技术的研究现状,并讨论在这个快速发展的领域当中面临的挑战和机遇.展开更多
Background The visual system and its inherent functions undergo experience-dependent changes through the lifespan,enabling acquisition of new skills.Previous fMRI studies using tasks reported increased specialization ...Background The visual system and its inherent functions undergo experience-dependent changes through the lifespan,enabling acquisition of new skills.Previous fMRI studies using tasks reported increased specialization in a number of cortical regions subserving visual expertise.Although ample studies focused on representation of long-term visual expertise in the brain,i.e.in terms of year,monthly-based early-stage representation of visual expertise remains unstudied.Given that spontaneous neuronal oscillations actively encode previous experience,we propose brain representations in the resting state is fundamentally important.Objective The current study aimed to investigate how monthly-based early-stage visual expertise are represented in the resting state using the expertise model of radiologists.Methods In particular,we investigated the altered local clustering pattern of spontaneous brain activity using regional homogeneity(ReHo).A cohort group of radiology interns(n=22)after one-month training in X-ray department and matched laypersons(n=22)were recruited after rigorous behavioral assessment.Results The results showed higher ReHo in the right hippocampus(HIP)and the right ventral anterior temporal lobe(vATL)(corrected by Alphasim correction,P<0.05).Moreover,ReHo in the right HIP correlated with the number of cases reviewed during intern radiologists’training(corrected by Alphasim correction,P<0.05).Conclusions In sum,our results demonstrated that the early stage of visual expertise is more concerned with stabilizing visual feature and domain-specific knowledge into long-term memory.The results provided novel evidence regarding how early-stage visual expertise is represented in the resting brain,which help further elaborate how human visual expertise is acquired.We propose that our current study may provide novel ideas for developing new training protocols in medical schools.展开更多
基金supported by the National Natural Science Foundation of China (21372183)the Hubei Province Natural Science Foundation (2013CFB328)+1 种基金the Key Laboratory of Analytical Chemistry for Biology and Medicine (Wuhan University), Ministry of Education (ACBM2014001)the Start-Up-Fund grant provided by Wuhan University of Science and Technology
文摘纳米孔DNA测序技术是一类重要的DNA测序技术,可以实现长链DNA序的快速读取.一个DNA分子可以以毫秒每碱基,甚至更快的速度通过纳米孔,从而有可能实现在1 h以内完成人类全基因组测序.与下一代DNA测序技术(next generation DNA sequencing,NGS)相比较,纳米孔DNA测序技术可以实现单分子测序,无需使用酶进行样品扩增.纳米孔DNA测序技术是后NGS时代极具潜力的DNA测序技术.本文将介绍纳米孔DNA测序技术的研究现状,并讨论在这个快速发展的领域当中面临的挑战和机遇.
基金This paper is supported by National Key R&D Program of China(Grant No.2022YFF1202400)the National Natural Science Foundation of China(U19B2030)the Science and Technology Projects of Xi’an,China(No.201809170CX11JC12).
文摘Background The visual system and its inherent functions undergo experience-dependent changes through the lifespan,enabling acquisition of new skills.Previous fMRI studies using tasks reported increased specialization in a number of cortical regions subserving visual expertise.Although ample studies focused on representation of long-term visual expertise in the brain,i.e.in terms of year,monthly-based early-stage representation of visual expertise remains unstudied.Given that spontaneous neuronal oscillations actively encode previous experience,we propose brain representations in the resting state is fundamentally important.Objective The current study aimed to investigate how monthly-based early-stage visual expertise are represented in the resting state using the expertise model of radiologists.Methods In particular,we investigated the altered local clustering pattern of spontaneous brain activity using regional homogeneity(ReHo).A cohort group of radiology interns(n=22)after one-month training in X-ray department and matched laypersons(n=22)were recruited after rigorous behavioral assessment.Results The results showed higher ReHo in the right hippocampus(HIP)and the right ventral anterior temporal lobe(vATL)(corrected by Alphasim correction,P<0.05).Moreover,ReHo in the right HIP correlated with the number of cases reviewed during intern radiologists’training(corrected by Alphasim correction,P<0.05).Conclusions In sum,our results demonstrated that the early stage of visual expertise is more concerned with stabilizing visual feature and domain-specific knowledge into long-term memory.The results provided novel evidence regarding how early-stage visual expertise is represented in the resting brain,which help further elaborate how human visual expertise is acquired.We propose that our current study may provide novel ideas for developing new training protocols in medical schools.
