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Nampt/PBEF/visfatin serum levels: a new biomarker for retinal blood vessel occlusions

机译:Nampt / PBEF / visfatin血清水平:视网膜血管阻塞的新生物标志物

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Abstract: The main objective of the study was to quantify serum levels of nicotinamide phosphoribosyltransferase (Nampt/pre-B-Cell colony-enhancing factor 1/visfatin) in subjects with a history of retinal vascular occlusions (RVOs), disease conditions characterized by pronounced ischemia, and metabolic energy deficits. A case–control study of 18 subjects with a history of RVO as well as six healthy volunteers is presented. Serum Nampt levels were quantified using a commercially available enzyme-linked immunosorbent assay kit. Serum Nampt levels were 79% lower in patients with a history of RVO compared with that in healthy volunteers (P<0.05). There was no statistically significant difference among the types of RVOs, specifically branch retinal vein occlusions (n=7), central retinal vein occlusions (n=5), hemiretinal vein occlusions (n=3), and central retinal artery occlusions (n=3; P=0.69). Further studies are needed to establish the temporal kinetics of Nampt expression and to determine whether Nampt may represent a novel biomarker to identify at-risk populations, or whether it is a druggable target with the potential to ameliorate the long-term complications associated with the condition, ie, macular edema, macular ischemia, neovascularization, and permanent loss of vision.
机译:摘要:该研究的主要目的是定量分析具有视网膜血管阻塞(RVOs)病史的受试者的烟酰胺磷酸核糖基转移酶(Nampt / B细胞前集落增强因子1 / visfatin)的水平缺血和代谢能不足。进行了一项病例对照研究,研究对象是18名具有RVO病史的受试者以及6名健康志愿者。使用可商购的酶联免疫吸附测定试剂盒对血清Nampt水平进行定量。具有RVO病史的患者的血清Nampt水平比健康志愿者低79%(P <0.05)。 RVO的类型之间无统计学意义上的显着差异,特别是视网膜分支静脉阻塞(n = 7),视网膜中央静脉阻塞(n = 5),半视网膜静脉阻塞(n = 3)和视网膜中央动脉阻塞(n = 3; P = 0.69)。需要进一步的研究来确定Nampt表达的时间动力学,并确定Nampt是否可以代表一种新的生物标记物来识别高危人群,或者它是否是可治疗的靶点,并且有望缓解与该病相关的长期并发症即黄斑水肿,黄斑缺血,新血管形成和永久性视力丧失。

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