Dhanin Puthiyottil, P S Priyamvada, Mattewada Naveen Kumar, Anand Chellappan, Bobby Zachariah, Sreejith Parameswaran
{"title":"尿β 2微球蛋白和肾损伤分子-1在预测急性肾损伤一年后肾功能中的作用","authors":"Dhanin Puthiyottil, P S Priyamvada, Mattewada Naveen Kumar, Anand Chellappan, Bobby Zachariah, Sreejith Parameswaran","doi":"10.2147/IJNRD.S319933","DOIUrl":null,"url":null,"abstract":"<p><strong>Background: </strong>There is only limited information on the utility of urinary biomarkers in predicting long-term kidney function following acute kidney injury (AKI). The current study assessed whether urinary beta 2 microglobulin/creatinine (B2M/creat) and kidney injury molecule-1/creatinine (KIM-1/creat) ratios, measured in the early recovery phase of AKI, are predictive of kidney function at one year.</p><p><strong>Methods: </strong>This is a prospective study done in a tertiary care centre in South India, from March 2017 to December 2018. Adult patients who survived an episode of AKI were followed up for one year (n=125). B2M/creat and KIM-1/creat ratio were measured at two weeks and three months following AKI.</p><p><strong>Results: </strong>In the AKI survivors, the B2M/creat ratio at 2 weeks [18.3mg/g (IQR 2.3, 52.9)] and KIM-1/creat ratio [1.1 µg/g (IQR 0.5, 4.0) at two weeks were higher compared to healthy controls [B2M/creat ratio 0.35 mg/g (0.17,0.58) and KIM-1/creat ratio 0.40 µg/g (0.23,1.00); P=<0.001]. After adjusting for covariates, the eGFR and urinary B2M/creat ratio at two weeks following AKI were predictive of eGFR at one year (P<0.001). KIM-1/ creat ratios were not predictive of eGFR at one year. A urinary B2M/creat ratio of 10.85 at two weeks following AKI had an 85.5% sensitivity (95% CI 74, 93) and 64.3% (95% CI 53, 75) specificity to predict CKD at one year. An eGFR cutoff of 60 mL/min/1.73 m<sup>2</sup> at two weeks had a sensitivity of 81.8% (95% CI 69, 90) and specificity of 71.4% (95% CI 60, 81) for predicting CKD. The presence of either one criteria (urinary B2M/creat ratio >10.85 (mg/g) or eGFR <60 mL at two weeks) had a sensitivity of 100% (95% CI 94%, 100%) in predicting CKD at one year.</p><p><strong>Conclusion: </strong>An eGFR <60 mL/min/1.73m<sup>2</sup> and elevated urinary B2M/creat ratio at two weeks following AKI is predictive of low eGFR at one year. Urinary KIM-1/creat ratios do not predict CKD progression.</p>","PeriodicalId":14181,"journal":{"name":"International Journal of Nephrology and Renovascular Disease","volume":null,"pages":null},"PeriodicalIF":2.1000,"publicationDate":"2021-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/12/49/ijnrd-14-225.PMC8275482.pdf","citationCount":"6","resultStr":"{\"title\":\"Role of Urinary Beta 2 Microglobulin and Kidney Injury Molecule-1 in Predicting Kidney Function at One Year Following Acute Kidney Injury.\",\"authors\":\"Dhanin Puthiyottil, P S Priyamvada, Mattewada Naveen Kumar, Anand Chellappan, Bobby Zachariah, Sreejith Parameswaran\",\"doi\":\"10.2147/IJNRD.S319933\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><strong>Background: </strong>There is only limited information on the utility of urinary biomarkers in predicting long-term kidney function following acute kidney injury (AKI). 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After adjusting for covariates, the eGFR and urinary B2M/creat ratio at two weeks following AKI were predictive of eGFR at one year (P<0.001). KIM-1/ creat ratios were not predictive of eGFR at one year. A urinary B2M/creat ratio of 10.85 at two weeks following AKI had an 85.5% sensitivity (95% CI 74, 93) and 64.3% (95% CI 53, 75) specificity to predict CKD at one year. An eGFR cutoff of 60 mL/min/1.73 m<sup>2</sup> at two weeks had a sensitivity of 81.8% (95% CI 69, 90) and specificity of 71.4% (95% CI 60, 81) for predicting CKD. The presence of either one criteria (urinary B2M/creat ratio >10.85 (mg/g) or eGFR <60 mL at two weeks) had a sensitivity of 100% (95% CI 94%, 100%) in predicting CKD at one year.</p><p><strong>Conclusion: </strong>An eGFR <60 mL/min/1.73m<sup>2</sup> and elevated urinary B2M/creat ratio at two weeks following AKI is predictive of low eGFR at one year. 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引用次数: 6
摘要
背景:尿液生物标志物在预测急性肾损伤(AKI)后长期肾功能方面的应用信息有限。目前的研究评估了在AKI早期恢复阶段测量的尿β 2微球蛋白/肌酐(B2M/creat)和肾损伤分子-1/肌酐(KIM-1/creat)比值是否可以预测一年后的肾功能。方法:这是一项前瞻性研究，于2017年3月至2018年12月在印度南部的一家三级医疗中心进行。在AKI发作后存活的成年患者随访1年(n=125)。分别于AKI后2周和3个月测定B2M/creat和KIM-1/creat比值。结果:AKI幸存者2周时B2M/creat比[18.3mg/g (IQR 2.3, 52.9)]和KIM-1/creat比[1.1µg/g (IQR 0.5, 4.0)]高于健康对照组[B2M/creat比0.35 mg/g(0.17,0.58)和KIM-1/creat比0.40µg/g (0.23,1.00)];两周时P=2预测CKD的敏感性为81.8% (95% CI 69, 90)，特异性为71.4% (95% CI 60, 81)。结论:AKI后两周eGFR 2和尿B2M/creat比值升高可预测一年后eGFR偏低。尿KIM-1/ create比值不能预测CKD进展。
Role of Urinary Beta 2 Microglobulin and Kidney Injury Molecule-1 in Predicting Kidney Function at One Year Following Acute Kidney Injury.
Background: There is only limited information on the utility of urinary biomarkers in predicting long-term kidney function following acute kidney injury (AKI). The current study assessed whether urinary beta 2 microglobulin/creatinine (B2M/creat) and kidney injury molecule-1/creatinine (KIM-1/creat) ratios, measured in the early recovery phase of AKI, are predictive of kidney function at one year.
Methods: This is a prospective study done in a tertiary care centre in South India, from March 2017 to December 2018. Adult patients who survived an episode of AKI were followed up for one year (n=125). B2M/creat and KIM-1/creat ratio were measured at two weeks and three months following AKI.
Results: In the AKI survivors, the B2M/creat ratio at 2 weeks [18.3mg/g (IQR 2.3, 52.9)] and KIM-1/creat ratio [1.1 µg/g (IQR 0.5, 4.0) at two weeks were higher compared to healthy controls [B2M/creat ratio 0.35 mg/g (0.17,0.58) and KIM-1/creat ratio 0.40 µg/g (0.23,1.00); P=<0.001]. After adjusting for covariates, the eGFR and urinary B2M/creat ratio at two weeks following AKI were predictive of eGFR at one year (P<0.001). KIM-1/ creat ratios were not predictive of eGFR at one year. A urinary B2M/creat ratio of 10.85 at two weeks following AKI had an 85.5% sensitivity (95% CI 74, 93) and 64.3% (95% CI 53, 75) specificity to predict CKD at one year. An eGFR cutoff of 60 mL/min/1.73 m2 at two weeks had a sensitivity of 81.8% (95% CI 69, 90) and specificity of 71.4% (95% CI 60, 81) for predicting CKD. The presence of either one criteria (urinary B2M/creat ratio >10.85 (mg/g) or eGFR <60 mL at two weeks) had a sensitivity of 100% (95% CI 94%, 100%) in predicting CKD at one year.
Conclusion: An eGFR <60 mL/min/1.73m2 and elevated urinary B2M/creat ratio at two weeks following AKI is predictive of low eGFR at one year. Urinary KIM-1/creat ratios do not predict CKD progression.
期刊介绍：
International Journal of Nephrology and Renovascular Disease is an international, peer-reviewed, open-access journal focusing on the pathophysiology of the kidney and vascular supply. Epidemiology, screening, diagnosis, and treatment interventions are covered as well as basic science, biochemical and immunological studies. In particular, emphasis will be given to: -Chronic kidney disease- Complications of renovascular disease- Imaging techniques- Renal hypertension- Renal cancer- Treatment including pharmacological and transplantation- Dialysis and treatment of complications of dialysis and renal disease- Quality of Life- Patient satisfaction and preference- Health economic evaluations. The journal welcomes submitted papers covering original research, basic science, clinical studies, reviews & evaluations, guidelines, expert opinion and commentary, case reports and extended reports. The main focus of the journal will be to publish research and clinical results in humans but preclinical, animal and in vitro studies will be published where they shed light on disease processes and potential new therapies and interventions.
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