An 87-year-old woman with primary open-angle glaucoma presented to our hospital. Although the combined cataract and minimally invasive glaucoma surgeries (MIGS) were an appropriate surgical option, the presence of ban...An 87-year-old woman with primary open-angle glaucoma presented to our hospital. Although the combined cataract and minimally invasive glaucoma surgeries (MIGS) were an appropriate surgical option, the presence of band keratopathy made it difficult to perform ab interno glaucoma surgery in her right eye (OD);therefore, the corneal opacity was removed using ethylenediaminetetraacetic acid (EDTA) chelation procedure. One month after chelation, microhook ab interno trabeculotomy and cataract surgery were performed successfully. Clear intraoperative visualization of the angle structures is critical for the success of these MIGS procedures. In glaucomatous eyes that require MIGS, EDTA chelation is a good neoadjuvant therapy for coexisting band keratopathy.展开更多
目的探讨外周血经3种不同抗凝剂处理后培养的自然杀伤(NK)细胞的增殖率和杀伤功能的影响研究。方法采集10例年龄(35±5)岁健康志愿者15 m L外周血,分别置于含乙二胺四乙酸二钾(EDTA-K2,EDTA组)、细胞保存液(细胞保存液组)和肝素钠(...目的探讨外周血经3种不同抗凝剂处理后培养的自然杀伤(NK)细胞的增殖率和杀伤功能的影响研究。方法采集10例年龄(35±5)岁健康志愿者15 m L外周血,分别置于含乙二胺四乙酸二钾(EDTA-K2,EDTA组)、细胞保存液(细胞保存液组)和肝素钠(肝素钠组)的抗凝管中。用淋巴细胞分离液收集单个核细胞,在NK细胞培养液中培养单个核细胞12 d,并观察细胞生长情况。在第4、6、8、10、12天时,收集细胞用CCK8法检测NK细胞的增殖情况。在细胞增殖最明显的第12天收集细胞,通过流式细胞仪检测各组NK细胞的颗粒酶、穿孔素和CD107a。台盼蓝染色检测细胞活性。通过CCK8法检测各组对肿瘤细胞株K562杀伤活性。结果通过细胞增殖发现,EDTA组NK细胞增殖不明显,肝素钠组和细胞保存液组增殖明显。第12天时检测发现,肝素钠组增殖倍数为128.15±6.38,细胞保存液组增殖倍数为107.51±5.70;肝素钠组优于细胞保存液组(t=6.20,P=0.00)。肝素钠组NK细胞纯度表达为(84.49±2.35)%,也明显高于细胞保存液组NK细胞表达[(77.63±1.37)%]。经台盼蓝染色检测,肝素钠组和细胞保存液组细胞活性率均为100%。通过流式细胞仪检测发现,肝素钠组NK细胞颗粒酶B、穿孔素和CD107a的表达都明显高于细胞保存液组(t=12.76、17.76、5.67,P=0.00、0.00、0.00)。对肿瘤细胞株K562杀伤结果显示,肝素钠组NK细胞杀伤活性(50.12%±3.42%)明显高于细胞保存液组(41.88%±2.47%)(t=4.78,P=0.001)。结论肝素钠和细胞保存液均可用于NK细胞培养的血液抗凝,但肝素钠组NK细胞的杀伤功能明显优于细胞保存液组。展开更多
文摘An 87-year-old woman with primary open-angle glaucoma presented to our hospital. Although the combined cataract and minimally invasive glaucoma surgeries (MIGS) were an appropriate surgical option, the presence of band keratopathy made it difficult to perform ab interno glaucoma surgery in her right eye (OD);therefore, the corneal opacity was removed using ethylenediaminetetraacetic acid (EDTA) chelation procedure. One month after chelation, microhook ab interno trabeculotomy and cataract surgery were performed successfully. Clear intraoperative visualization of the angle structures is critical for the success of these MIGS procedures. In glaucomatous eyes that require MIGS, EDTA chelation is a good neoadjuvant therapy for coexisting band keratopathy.
文摘目的探讨外周血经3种不同抗凝剂处理后培养的自然杀伤(NK)细胞的增殖率和杀伤功能的影响研究。方法采集10例年龄(35±5)岁健康志愿者15 m L外周血,分别置于含乙二胺四乙酸二钾(EDTA-K2,EDTA组)、细胞保存液(细胞保存液组)和肝素钠(肝素钠组)的抗凝管中。用淋巴细胞分离液收集单个核细胞,在NK细胞培养液中培养单个核细胞12 d,并观察细胞生长情况。在第4、6、8、10、12天时,收集细胞用CCK8法检测NK细胞的增殖情况。在细胞增殖最明显的第12天收集细胞,通过流式细胞仪检测各组NK细胞的颗粒酶、穿孔素和CD107a。台盼蓝染色检测细胞活性。通过CCK8法检测各组对肿瘤细胞株K562杀伤活性。结果通过细胞增殖发现,EDTA组NK细胞增殖不明显,肝素钠组和细胞保存液组增殖明显。第12天时检测发现,肝素钠组增殖倍数为128.15±6.38,细胞保存液组增殖倍数为107.51±5.70;肝素钠组优于细胞保存液组(t=6.20,P=0.00)。肝素钠组NK细胞纯度表达为(84.49±2.35)%,也明显高于细胞保存液组NK细胞表达[(77.63±1.37)%]。经台盼蓝染色检测,肝素钠组和细胞保存液组细胞活性率均为100%。通过流式细胞仪检测发现,肝素钠组NK细胞颗粒酶B、穿孔素和CD107a的表达都明显高于细胞保存液组(t=12.76、17.76、5.67,P=0.00、0.00、0.00)。对肿瘤细胞株K562杀伤结果显示,肝素钠组NK细胞杀伤活性(50.12%±3.42%)明显高于细胞保存液组(41.88%±2.47%)(t=4.78,P=0.001)。结论肝素钠和细胞保存液均可用于NK细胞培养的血液抗凝,但肝素钠组NK细胞的杀伤功能明显优于细胞保存液组。
