The Role of Gamma-Glutamyl Transferase in Acute Exacerbation of Chronic Obstructive Pulmonary Disease Severity: A Cross-Sectional Study

Publish Year: 1402
نوع سند: مقاله ژورنالی
زبان: English
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JR_JCTM-11-4_001

تاریخ نمایه سازی: 29 بهمن 1402

Abstract:

Introduction: Gamma-glutamyl transferase (GGT) is a liver enzyme that is involved in inflammation and oxidative stress. It has been hypothesized that elevated GGT may occur secondary to oxidative stress in acute exacerbation of chronic obstructive pulmonary disease (AECOPD) and can be used as an indicator of inflammation in these patients. The present study aimed to determine the relationship between serum GGT and arterial blood gas (ABGs) on the one hand and COPD severity in AECOPD patients on the other hand.Methods: Patients with AECOPD were evaluated for disease severity based on the global initiative for chronic obstructive lung disease (GOLD), Modified British Medical Research Council (mMRC), COPD Assessment Test (CAT), and spirometry assessment upon admission at the hospital. Moreover, the GGT level in patients was analyzed based on the severity of the disease. The data were analyzed using SPSS software (version ۲۵.۰) by proper statistical tests. The significance level was P˂۰.۰۵.Results: The mean±SD of the CAT score in the patients was obtained at ۱۹.۶± ۴.۶. According to the mMRC scale, most patients were grade ۲ (n=۲۹, ۵۲.۷%) and grade ۱ (n=۱۷, ۳۰.۹%), respectively. In addition, according to GOLD criteria, most patients (n=۳۴, ۶۱.۸%) had moderate and severe (n=۱۶, ۲۹.۱%) disease, respectively. The median (IQR) GGT levels in patients with mMRC ۰-۱ were ۲۸.۷ (۱۲.۹۸) IU/L, and those with mMRC ۲-۴ were ۲۱ (۳۳) IU/L (P=۰.۷۷۰). Additionally, the median (IQR) of GGT levels in patients in GOLD A-B were obtained at ۲۶(۱۸) IU/L, and in patients in GOLD C-D were reported as ۱۸ (۲۳.۸۰) IU/L (P=۰.۲۲۲). The results showed a significant positive relationship between GGT level and AECOPD severity (r=+۰.۲۷۷, P=۰.۰۴). Moreover, a significant negative relationship was observed between GGT level and forced vital capacity (FVC) (r=-۰.۲۶۸, P=۰.۰۴). According to the Pearson correlation test, There was no significant correlation between GGT level with arterial HCO۳ (P=۰.۱۲۳), PCO۲ (P=۰.۵۱۱), PO۲ (P=۰.۸۸۸), FEV۱ (P=۰.۳۵۶), and FEV۱/FVC (P=۰.۹۷۵).Conclusion: In conclusion, while a significant positive relationship was found between GGT levels and AECOPD severity, the study suggests that serum GGT levels may not have clinical efficacy in differentiating between patients with varying intensities of AECOPD periods. Further research with larger sample sizes and consideration of additional factors is warranted to confirm these findings.

Keywords:

Acute exacerbation , Chronic Obstructive Pulmonary Disease , Gamma-glutamyl transferase , AECOPD

Authors

Fariba Rezaeetalab

Lung Diseases Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.

Sedigheh Noori

Department of Internal Medicine, Faculty of Medicine, Mashhad University of Medical Science, Mashhad, Iran.

Ali Shamshirian

Student Research Committee, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.

AmirAli Moodi Ghalibaf

Student Research Committee, Birjand University of Medical Sciences, Birjand, Iran.

Farid Poursadegh

Lung Diseases Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.

Mahnaz Mozdourian

Lung Diseases Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.

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