Dramatic advances in retinal imaging technology over the last two decades have significantly improved our understanding of the natural history and pathophysiology of non-neovascular age-related macular degeneration(AM...Dramatic advances in retinal imaging technology over the last two decades have significantly improved our understanding of the natural history and pathophysiology of non-neovascular age-related macular degeneration(AMD).Currently,aside from micronutrient supplements,there are no proven treatments for non-neovascular or dry AMD.Recently,a number of pharmacological agents have been evaluated or are under evaluation for treatment of patients with end-stage dry AMD manifesting as geographic atrophy(GA).It may preferable,however,to intervene earlier in the disease before the development of irreversible loss of visual function.Earlier intervention would require a more precise understanding of biomarkers which may increase the risk of progression from early and intermediate stages to the late stage of the disease.The development of optical coherence tomography angiography(OCTA)has allowed the layers of the retinal microcirculation and choriocapillaris(CC)to be visualized and quantified.Flow deficits in the CC have been observed to increase with age,particularly centrally,and these flow deficits appear to worsen with development and progression of AMD.As such,OCTA-based CC assessment appears to be a valuable new biomarker in our assessment and risk-stratification of AMD.Alterations in the CC may also provide new insights into the pathophysiology of the disease.Enhancement of choriocapillaris function may also prove to be a target of future therapeutic strategies or as a biomarker to monitor the effectiveness of therapy.As such,CC imaging may be anticipated to be an integral tool in the management of dry AMD.展开更多
在围产医学水平不断提升的条件下,早产儿存活率明显提升,加之二胎政策的开放以及辅助生殖技术的进步,高龄产妇和多胎妊娠相对增多,早产儿视网膜病变(retinopathy of prematurity,ROP)作为常见的早产儿缺氧性疾病也呈现出高发病率趋势。...在围产医学水平不断提升的条件下,早产儿存活率明显提升,加之二胎政策的开放以及辅助生殖技术的进步,高龄产妇和多胎妊娠相对增多,早产儿视网膜病变(retinopathy of prematurity,ROP)作为常见的早产儿缺氧性疾病也呈现出高发病率趋势。目前普遍认为早产儿的发病原因为缺血缺氧,但其发生发展机制仍有待深入研究。近年来,关于长链非编码RNA(long non-coding RNA,lncRNA)在ROP及其他视网膜新生血管性疾病中的作用已有大量的相关研究。本文旨在综述lncRNA的表达与调控对ROP发生发展的影响,为临床控制与治疗ROP提供理论基础。展开更多
The prevalence of eye diseases worldwide is dramatically increasing and represents a major concern in underdeveloped and developed regions. Ocular diseases, previously associated with a higher depression risk, also im...The prevalence of eye diseases worldwide is dramatically increasing and represents a major concern in underdeveloped and developed regions. Ocular diseases, previously associated with a higher depression risk, also impose a substantial economic burden on affected families, thus early detection and/or accurate treatment in order to avoid and prevent blindness should be emphasized. Ocular neovascularization(NV), the leading cause of blindness in a variety of eye diseases, is a pathologic process characterized by the formation, proliferation and infiltration of anomalous, tiny and leaky fragile blood vessels within the eye. Genetics have been suspected to play an important role in the occurrence of eye diseases, with the detection of a numbers of specific gene mutations. Long non-coding RNA(lnc RNAs) are novel class of regulatory molecules previously associated with various biological processes and diseases, however the nature of the relation and pathways by which they might contribute to the development of corneal, choroidal and retinal NV have not yet been completely elucidated. In this review, we focus on the regulation and characteristics of lncR NAs, summarize results from ocular NV-related studies and discuss the implication of lncR NAs in ocular NV development.展开更多
文摘Dramatic advances in retinal imaging technology over the last two decades have significantly improved our understanding of the natural history and pathophysiology of non-neovascular age-related macular degeneration(AMD).Currently,aside from micronutrient supplements,there are no proven treatments for non-neovascular or dry AMD.Recently,a number of pharmacological agents have been evaluated or are under evaluation for treatment of patients with end-stage dry AMD manifesting as geographic atrophy(GA).It may preferable,however,to intervene earlier in the disease before the development of irreversible loss of visual function.Earlier intervention would require a more precise understanding of biomarkers which may increase the risk of progression from early and intermediate stages to the late stage of the disease.The development of optical coherence tomography angiography(OCTA)has allowed the layers of the retinal microcirculation and choriocapillaris(CC)to be visualized and quantified.Flow deficits in the CC have been observed to increase with age,particularly centrally,and these flow deficits appear to worsen with development and progression of AMD.As such,OCTA-based CC assessment appears to be a valuable new biomarker in our assessment and risk-stratification of AMD.Alterations in the CC may also provide new insights into the pathophysiology of the disease.Enhancement of choriocapillaris function may also prove to be a target of future therapeutic strategies or as a biomarker to monitor the effectiveness of therapy.As such,CC imaging may be anticipated to be an integral tool in the management of dry AMD.
文摘在围产医学水平不断提升的条件下,早产儿存活率明显提升,加之二胎政策的开放以及辅助生殖技术的进步,高龄产妇和多胎妊娠相对增多,早产儿视网膜病变(retinopathy of prematurity,ROP)作为常见的早产儿缺氧性疾病也呈现出高发病率趋势。目前普遍认为早产儿的发病原因为缺血缺氧,但其发生发展机制仍有待深入研究。近年来,关于长链非编码RNA(long non-coding RNA,lncRNA)在ROP及其他视网膜新生血管性疾病中的作用已有大量的相关研究。本文旨在综述lncRNA的表达与调控对ROP发生发展的影响,为临床控制与治疗ROP提供理论基础。
基金Supported by the National Natural Science Foundation of China (No.81170887)the Natural Science Foundation of Guangdong Province (No.2017A030313602)the Horizontal Topic Matching Funds of Nanfang Hospital, Southern Medical University (No.G201202)
文摘The prevalence of eye diseases worldwide is dramatically increasing and represents a major concern in underdeveloped and developed regions. Ocular diseases, previously associated with a higher depression risk, also impose a substantial economic burden on affected families, thus early detection and/or accurate treatment in order to avoid and prevent blindness should be emphasized. Ocular neovascularization(NV), the leading cause of blindness in a variety of eye diseases, is a pathologic process characterized by the formation, proliferation and infiltration of anomalous, tiny and leaky fragile blood vessels within the eye. Genetics have been suspected to play an important role in the occurrence of eye diseases, with the detection of a numbers of specific gene mutations. Long non-coding RNA(lnc RNAs) are novel class of regulatory molecules previously associated with various biological processes and diseases, however the nature of the relation and pathways by which they might contribute to the development of corneal, choroidal and retinal NV have not yet been completely elucidated. In this review, we focus on the regulation and characteristics of lncR NAs, summarize results from ocular NV-related studies and discuss the implication of lncR NAs in ocular NV development.
