观察肾脏损伤的发生情况

纽约——目前对肾脏疾病的检查是一种简单的血清肌酐血检,但这种代谢物需要超过两天的时间累积到足以表明肾脏损伤的水平,而到那时可能已经来不及干预了。为了缩小损伤和诊断之间的差距,由医学和细胞生物学副教授Jonathan Barasch博士、博士、博士后Neal Paragas博士和哥伦比亚大学医学中心副研究科学家anton Qiu博士领导的基础科学家和医生团队创造了一种“报告鼠”——一种基因工程生物发光动物,能够通过光的产生照亮肾脏损伤的开始和时间过程。本周,《自然医学》杂志在线发表了一篇论文。Barasch、Paragas和Qiu报道了一种技术,可以在活老鼠身上检测一种蛋白质的出现,这种蛋白质只有在肾脏受到突然肾脏损伤的刺激时才会被激活。NGAL(中性粒细胞明胶酶相关脂脂素)基因被选择用于创造生物发光小鼠,因为哥伦比亚和辛辛那提儿童医院的博士们进行了许多临床研究。Barasch和P. Devarajan的研究,由K. Mori博士在京都大学进行,以及由K.M. Schmidt-Ott博士在Charite ' Universitätsmedizin柏林进行的研究表明NGAL可以报告毒性细胞应激,而不是肾功能的简单可逆变化。Drs。Barasch、Paragas和Qiu还着手确定NGAL是否符合真正“生物标志物”的严格标准,这需要蛋白质在器官损伤部位和血清或尿液中按刺激比例同时出现,并且在允许医生以临床有意义的方式进行干预的时间框架内。帕拉斯博士说:“我们不仅希望进一步证明NGAL能立即检测和测量肾脏损伤,而且希望设计出最快、最精确的检测方法,使医生能够根据证据做出有可能挽救生命的药物治疗决定,实时观察肾脏,看看疗法是否有效。”这项工作得到了美国国家糖尿病、消化和肾脏疾病研究所的部分支持,也得到了美国慈善基金会(March of Dimes)和哥伦比亚科技投资公司(Columbia Technology Ventures)的支持。 - ### - Columbia University Medical Center provides international leadership in basic, pre-clinical and clinical research, in medical and health sciences education, and in patient care. The medical center trains future leaders and includes the dedicated work of many physicians, scientists, public health professionals, dentists, and nurses at the College of Physicians and Surgeons, the Mailman School of Public Health, the College of Dental Medicine, the School of Nursing, the biomedical departments of the Graduate School of Arts and Sciences, and allied research centers and institutions. Established in 1767, Columbia’s College of Physicians and Surgeons was the first institution in the country to grant the M.D. degree and is now among the most selective medical schools in the country. Columbia University Medical Center is home to the most comprehensive medical research enterprise in New York City and State and one of the largest in the United States. Columbia University Medical Center is affiliated with NewYork-Presbyterian Hospital, the nation’s largest not-for-profit, non-sectarian hospital provider.

标签

柏林,分类,辛辛那提儿童,乔纳森·巴拉什,国家研究所,NGAL