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Nilgün TekkeşinCentral Biochemistry Laboratory, Memorial Hospital, Şişli, Istanbul, Turkey

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Yavuz TagaDepartment of Biochemistry, School of Medicine, Marmara University, Istanbul, Turkey

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Duygu İbrişimDepartment of Gastroenterology, Memorial Hospital, Ataşehir, Istanbul, Turkey

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Nilgün GündoğanDepartment of Radiology, Memorial Hospital, Şişli, Istanbul, Turkey

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Abstract

Background/Aims

Nonalcoholic fatty liver disease (NAFLD), one of the most common forms of chronic liver disease, is closely associated with obesity and insulin resistance (IR). Adipokines secreted by adipose tissue have recently been implicated in initiating and perpetuating the chronic inflammatory state observed in obesity and NAFLD. Recent studies suggest neutrophil gelatinase-associated lipocalin (NGAL) plays a key role in the pathogenesis of IR. The aims of this study were to determine urinary NGAL levels in patients with ultrasonography proven NAFLD and to correlate these levels with the metabolic profile and fibrosis grade in this population.

Methodology

Our cohort consisted of 65 consecutive patients undergoing abdominal ultrasonography for clinical suspicion of NAFLD. Patients were subsequently divided into two groups: no steatosis (n=20) and steatosis (n=45). The stage of fibrosis was measured using a four-point scale. Urinary NGAL was measured by a specific microparticle enzyme immunoassay. The degree of insulin resistance was determined by the homeostatic model assessment (HOMA). Glucose, insulin, lipid profile, and transaminases were also measured.

Results

Urinary NGAL levels correlated with body mass index, HOMA, fasting glucose, and insulin levels in patients with steatosis. Moreover, uNGAL levels were higher in patients with steatosis compared to those with no steatosis (49.8 ng/mL and 22.7 ng/mL, respectively) with a statistically significant difference (p<0.001). A stepwise increase in uNGAL levels from patients without fibrosis (21.7 ng/mL) to patients with cirrhosis (47.4 ng/mL) was noted (p<0.001).

Conclusions

Our study demonstrates that in adult patients with NAFLD, uNGAL levels correlate with BMI, insulin resistance, and lipid profiles, and identifies a novel association between uNGAL levels and hepatocellular injury in these patients.

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2019  
Scimago
H-index
11
Scimago
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0,220
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Quartile Score
Medicine (miscellaneous) Q3
Scopus
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155/133=1,2
Scopus
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General Medicine 199/529 (Q2)
Scopus
SNIP
0,343
Scopus
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206
Scopus
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23

 

Interventional Medicine and Applied Science
Language English
Size  
Year of
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2009
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changed title
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Founder Akadémiai Kiadó
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H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
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H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
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Chief Executive Officer, Akadémiai Kiadó
ISSN 2061-1617 (Print)
ISSN 2061-5094 (Online)

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