In recent years, stem cells have been a focal point in research designed to evaluate the efficacy of ophthalmologic therapies, specifically those for corneal conditions. The corneal epithelium is one of the few region...In recent years, stem cells have been a focal point in research designed to evaluate the efficacy of ophthalmologic therapies, specifically those for corneal conditions. The corneal epithelium is one of the few regions of the body that maintains itself using a residual stem cell population within the adjacent limbus. Stem cell movement has additionally captivated the minds of researchers due to its potential application in different body regions. The cornea is a viable model for varying methods to track stem cell migratory patterns, such as lineage tracing and live imaging from the limbus. These developments have the potential to pave the way for future therapies designed to ensure the continuous regeneration of the corneal epithelium following injury via the limbal stem cell niche. This literature review aims to analyze the various methods of imaging used to understand the limbal stem cell niche and possible future directions that might be useful to consider for the better treatment and prevention of disorders of the cornea and corneal epithelium. .展开更多
目的:目前脊髓损伤仍缺乏十分有效的治疗手段,细胞治疗可能是一种很有前景的治疗手段,其中人脐带间充质干细胞由于其具有易获取、低成本、伦理争议少和免疫原性低等优点受到广泛关注。但目前临床上并没有大范围使用人脐带间充质干细胞,...目的:目前脊髓损伤仍缺乏十分有效的治疗手段,细胞治疗可能是一种很有前景的治疗手段,其中人脐带间充质干细胞由于其具有易获取、低成本、伦理争议少和免疫原性低等优点受到广泛关注。但目前临床上并没有大范围使用人脐带间充质干细胞,对其有效性和安全性还有争议。文章使用Meta分析来评价人脐带间充质干细胞治疗脊髓损伤的有效性和安全性。方法:应用计算机检索英文数据库(PubMed、Web of Science、Cochrane、EMbase)和中文数据库(中国知网、万方医学网和维普数据库),搜集人脐带间充质干细胞治疗脊髓损伤的临床研究文献,检索时间为各数据库建库至2021年4月。由2位研究人员独立阅读纳入文献、提取资料和评价质量,随机对照试验使用改良Jadad评分量表对纳入文献进行评分,并使用Cochrane风险偏倚评估工具进行偏倚风险评估,队列研究采用NOS量表进行评价,使用RevMan 5.3软件进行Meta分析。结果:共纳入10篇文献,370例患者,包括6篇随机对照试验,4篇队列研究,文献总体质量较高。Meta分析结果显示:①人脐带间充质干细胞移植组的ASIA感觉功能评分(MD=5.20,95%CI:3.50-6.90,P<0.00001)、AIS分级改善率(RR=2.26,95%CI:1.40-3.65,P=0.0008)、日常生活能力评分(Barthel指数)(MD=5.12,95%CI:1.04-9.20,P=0.01)均高于对照组;②人脐带间充质干细胞移植组在ASIA运动功能评分(MD=3.48,95%CI:-0.14-7.10,P=0.06)、ASIA感觉功能评分中细化的针刺觉(MD=7.58,95%CI:-0.44-15.59,P=0.06)、轻触觉(MD=7.67,95%CI:-0.42-15.77,P=0.06)评分方面,与对照组相比差异无显著性意义;③敏感性分析结果显示,在人脐带间充质干细胞移植组ASIA运动功能评分高于对照组(MD=6.14,95%CI:4.46-7.81,P<0.00001),在日常生活能力评分方面,结论与之前保持一致。纳入的10篇文献中,均报道未有严重不良反应发生,但是个别病例存在轻微的不良反应,经对症治疗后均消失。结论:现有的临床证据表明,人脐带间充质干细胞治疗脊髓损伤安全有效,患者的感觉和运动功能以及日常生活能力可得到显著改善。展开更多
文摘In recent years, stem cells have been a focal point in research designed to evaluate the efficacy of ophthalmologic therapies, specifically those for corneal conditions. The corneal epithelium is one of the few regions of the body that maintains itself using a residual stem cell population within the adjacent limbus. Stem cell movement has additionally captivated the minds of researchers due to its potential application in different body regions. The cornea is a viable model for varying methods to track stem cell migratory patterns, such as lineage tracing and live imaging from the limbus. These developments have the potential to pave the way for future therapies designed to ensure the continuous regeneration of the corneal epithelium following injury via the limbal stem cell niche. This literature review aims to analyze the various methods of imaging used to understand the limbal stem cell niche and possible future directions that might be useful to consider for the better treatment and prevention of disorders of the cornea and corneal epithelium. .
文摘目的:目前脊髓损伤仍缺乏十分有效的治疗手段,细胞治疗可能是一种很有前景的治疗手段,其中人脐带间充质干细胞由于其具有易获取、低成本、伦理争议少和免疫原性低等优点受到广泛关注。但目前临床上并没有大范围使用人脐带间充质干细胞,对其有效性和安全性还有争议。文章使用Meta分析来评价人脐带间充质干细胞治疗脊髓损伤的有效性和安全性。方法:应用计算机检索英文数据库(PubMed、Web of Science、Cochrane、EMbase)和中文数据库(中国知网、万方医学网和维普数据库),搜集人脐带间充质干细胞治疗脊髓损伤的临床研究文献,检索时间为各数据库建库至2021年4月。由2位研究人员独立阅读纳入文献、提取资料和评价质量,随机对照试验使用改良Jadad评分量表对纳入文献进行评分,并使用Cochrane风险偏倚评估工具进行偏倚风险评估,队列研究采用NOS量表进行评价,使用RevMan 5.3软件进行Meta分析。结果:共纳入10篇文献,370例患者,包括6篇随机对照试验,4篇队列研究,文献总体质量较高。Meta分析结果显示:①人脐带间充质干细胞移植组的ASIA感觉功能评分(MD=5.20,95%CI:3.50-6.90,P<0.00001)、AIS分级改善率(RR=2.26,95%CI:1.40-3.65,P=0.0008)、日常生活能力评分(Barthel指数)(MD=5.12,95%CI:1.04-9.20,P=0.01)均高于对照组;②人脐带间充质干细胞移植组在ASIA运动功能评分(MD=3.48,95%CI:-0.14-7.10,P=0.06)、ASIA感觉功能评分中细化的针刺觉(MD=7.58,95%CI:-0.44-15.59,P=0.06)、轻触觉(MD=7.67,95%CI:-0.42-15.77,P=0.06)评分方面,与对照组相比差异无显著性意义;③敏感性分析结果显示,在人脐带间充质干细胞移植组ASIA运动功能评分高于对照组(MD=6.14,95%CI:4.46-7.81,P<0.00001),在日常生活能力评分方面,结论与之前保持一致。纳入的10篇文献中,均报道未有严重不良反应发生,但是个别病例存在轻微的不良反应,经对症治疗后均消失。结论:现有的临床证据表明,人脐带间充质干细胞治疗脊髓损伤安全有效,患者的感觉和运动功能以及日常生活能力可得到显著改善。
