بررسی مقایسه‌ای سطح N-Acetyl-β-D-Glucosaminidase و β2 Microglobulin در بیماری‌های مختلف کلیوی در اطفال

نوع مقاله : مقاله های پژوهشی

نویسندگان

1 استادیار، گروه کودکان، دانشکده‌ی پزشکی و مرکز تحقیقات رشد و نمو کودکان، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران

2 دانشجوی پزشکی، دانشکده‌ی پزشکی و کمیته‌ی تحقیقات دانشجویی، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران

3 دانشیار، گروه پاتولوژی، دانشکده‌ی پزشکی، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران

چکیده

مقدمه: در این مطالعه با انجام بررسی مقایسه‌ای سطح N-acetyl-β-D-glucosaminidase (NAG) و β2-microglobulin (β2M) ادرار در انواع بیماری‌های کلیوی در اطفال، یافتن بهترین نشانگرها برای تشخیص زودهنگام آسیب کلیوی در مراحل ابتدایی و پیشنهاد کاربرد این نشانگرها به جای نشانگرهای کنونی مانند کراتینین خون مدنظر بوده است.روش‌ها: این مطالعه بر روی 80 نفر از کودکان 3 تا 16 ساله مبتلا به 3 گروه بیماری کلیوی اعم از گلومرولی، توبولی و مشکلات ارولوژیک انجام شد. میزان NAG، β2M و Creatinine (Cr) در ادرار به صورت تصادفی اندازه‌گیری و از نسبت‌های NAG به Cr و β2M به Cr جهت مقایسه‌ی بین گروه‌ها استفاده شد. داده‌ها توسط نرم‌افزار SPSS و آزمون‌های آنالیز واریانس یک‌طرفه، Post hoc LSD، 2χ و منحنی ROC تجزیه و تحلیل گردید.یافته‌ها: میانگین نسبت‌های NAG به Cr و β2M به Cr در گروه گلومرولی به طور معنی‌داری بیشتر از سایر گروه‌ها بود و دو گروه ارولوژیک و توبولی با هم اختلاف معنی‌داری نداشتند و در این دو گروه بیشتر از گروه شاهد بود. در هر سه گروه ارزش تشخیصی نسبت‌ NAG به Cr بیشتر از نسبت‌ β2M به Cr بود و تنها در گروه بیماری‌های گلومرولی، نسبت‌ β2M به Cr ارزش تشخیصی داشت که از نسبت‌ NAG به Cr کمتر بود.نتیجه‌گیری: با توجه به نتایج به دست آمده از این مطالعه، اندازه‌گیری نسبت‌ NAG به Cr به عنوان یک روش ساده، ارزان و غیرتهاجمی برای تشخیص آسیب کلیوی در مراحل ابتدایی بیماری اعم از گلومرولار، توبولار و مشکلات ارولوژیک می‌تواند مورد استفاده قرار گیرد.

کلیدواژه‌ها


عنوان مقاله [English]

Comparing the Urinary Value of N-Acetyl-β-D-Glucosaminidase (NAG) and β2-Microglobulinuria (β2M) in Acute Kidney Damage in Children

نویسندگان [English]

  • Alireza Merrikhi 1
  • Reihaneh Naderi 2
  • Diana Taheri 3
  • Azar Baradaran 3
1 Assistant Professor, Department of Pediatric, School of Medicine AND Child Growth and Development Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
2 Student of Medicine, School of Medicine AND Student Research Committee, Isfahan University of Medical Sciences, Isfahan, Iran
3 Associate Professor, Department of Pathology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
چکیده [English]

Background: At this study, we aimed to compare the urinary value of N-acetyl-β-D-glucosaminidase (NAG) with β2-microglobulinuria (β2M) to find the best marker for early diagnosis of acute kidney damage in children. These markers were used instead of routine evaluations of renal function tests such as creatinine (Cr).Methods: This study was conducted on 80 pediatric patients with the age range of 3 to 16 years old. They were categorized into patients with glomerular disease, tubular disease, and finally patients who had urological problems. Urinary NAG, β2M and Cr were measured. The ratio of NAG/Cr and β2M/Cr was compared between the groups. For analysis, one way ANOVA, chi-square, post-hoc least significant difference (LSD) and receiver operating characteristic (ROC) curve were used.Findings: The mean of NAG/Cr in glomerular disease group was significantly more than the other groups (P < 0.05). There was no significant difference of NAG/Cr between two groups of tubular disease and urological disease patients’ group (P > 0.05). The mean of NAG/Cr in two groups of patients with tubular and urological disease was more than control group (P > 0.05). In patients with glomerular disease group, the mean of β2M/Cr ration was more than other groups. Besides, the mean of β2M/Cr in two groups of patients with tubular and urological disease was more than control group (P > 0.05). In all groups, the diagnostic value of NAG/Cr was more than β2M/Cr.Conclusion: Urinary measurement of NAG/Cr is a simple, cost benefit and non-invasive method which can be used to detect early stages of renal injury such as glomerular, tubular or urological problems.

کلیدواژه‌ها [English]

  • N-acetyl-β-D-glucosaminidase (NAG)
  • β2-microglobulinuria
  • Acute Kidney Injury
  • Glomerular disease
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