IL-18 Serum Levels in Patients with Obesity, Prediabetes and Newly Diagnosed Type 2 Diabetes

Background: Obesity and diabetes are related to a chronic low-grade inflammation. As a pro-inflammatory cytokine, IL-18 stimulates various cell types and has pleiotropic functions. Objective: To assess the levels of IL-18 in subjects from the entire spectrum of glycemic disorders. Methods: This stud...

Full description

Bibliographic Details
Main Authors: Iveta Nedeva, Antoaneta Gateva, Yavor Assyov, Vera Karamfilova, Julieta Hristova, Kyosuke Yamanishi, Zdravko Kamenov, Haruki Okamura
Format: Article
Language:English
Published: Shiraz University of Medical Sciences 2022-06-01
Series:Iranian Journal of Immunology
Subjects:
Online Access:https://iji.sums.ac.ir/article_48523_a9ddec6b4bc690bfe4dd298952cf71ee.pdf
_version_ 1811215963328086016
author Iveta Nedeva
Antoaneta Gateva
Yavor Assyov
Vera Karamfilova
Julieta Hristova
Kyosuke Yamanishi
Zdravko Kamenov
Haruki Okamura
author_facet Iveta Nedeva
Antoaneta Gateva
Yavor Assyov
Vera Karamfilova
Julieta Hristova
Kyosuke Yamanishi
Zdravko Kamenov
Haruki Okamura
author_sort Iveta Nedeva
collection DOAJ
description Background: Obesity and diabetes are related to a chronic low-grade inflammation. As a pro-inflammatory cytokine, IL-18 stimulates various cell types and has pleiotropic functions. Objective: To assess the levels of IL-18 in subjects from the entire spectrum of glycemic disorders. Methods: This study included 387 Caucasians divided into four groups: healthy controls, obese subjects without carbohydrate issues, prediabetic patients, and recently discovered type 2 diabetics. Results: Subject with body mass index ≥30kg/m2 and glycemic disorders showed significantly higher levels of IL-18 (249.77 ± 89.96 pg/ml; 259.01 ± 95.70 pg/ml; and 340.98 ± 127.65 pg/ml) compared with that of the control group (219.47 ± 110.53 pg/ml, p < 0.05). IL-18 also had significant positive associations with some anthropometric parameters, liver enzymes, fasting, post-load glucose, insulin, uric acid, and triglycerides while negative with HDL. The circulating IL-18 levels for differentiating subjects with carbohydrate disturbances and those with metabolic syndrome were determined by ROC analysis. The AUC for the disturbances of the carbohydrate metabolism was 0.597 (p = 0.001; 95% CI = 0.539 - 0.654) and for MS AUC was 0.581 (p = 0.021; 95 % CI = 0.516 - 0.647). Conclusion: Our data indicate that as the levels of IL-18 are increased the carbohydrate tolerance is deteriorated. However, the significance of IL-18 in the progression of diabetes mellitus and subsequent consequences requires further exploration.
first_indexed 2024-04-12T06:31:08Z
format Article
id doaj.art-2663f3fccc5246388f039142c0c60537
institution Directory Open Access Journal
issn 1735-1383
1735-367X
language English
last_indexed 2024-04-12T06:31:08Z
publishDate 2022-06-01
publisher Shiraz University of Medical Sciences
record_format Article
series Iranian Journal of Immunology
spelling doaj.art-2663f3fccc5246388f039142c0c605372022-12-22T03:44:00ZengShiraz University of Medical SciencesIranian Journal of Immunology1735-13831735-367X2022-06-0119219920610.22034/iji.2022.90095.198748523IL-18 Serum Levels in Patients with Obesity, Prediabetes and Newly Diagnosed Type 2 DiabetesIveta Nedeva0Antoaneta Gateva1Yavor Assyov2Vera Karamfilova3Julieta Hristova4Kyosuke Yamanishi5Zdravko Kamenov6Haruki Okamura7Clinic of Endocrinology, University Hospital “Alexandrovska”, Department of Internal Medicine, Medical University-Sofia, BulgariaClinic of Endocrinology, University Hospital “Alexandrovska”, Department of Internal Medicine, Medical University-Sofia, BulgariaClinic of Endocrinology, University Hospital “Alexandrovska”, Department of Internal Medicine, Medical University-Sofia, BulgariaClinic of Endocrinology, University Hospital “Alexandrovska”, Department of Internal Medicine, Medical University-Sofia, BulgariaClinical Laboratory and Clinical Pharmacology, University Hospital “Alexandrovska”, Department of Clinical Laboratory, Medical University-Sofia, BulgariaDepartment of Psychoimmunology, Hyogo College of Medicine, JapanClinic of Endocrinology, University Hospital “Alexandrovska”, Department of Internal Medicine, Medical University-Sofia, BulgariaDepartment of Psychoimmunology, Hyogo College of Medicine, JapanBackground: Obesity and diabetes are related to a chronic low-grade inflammation. As a pro-inflammatory cytokine, IL-18 stimulates various cell types and has pleiotropic functions. Objective: To assess the levels of IL-18 in subjects from the entire spectrum of glycemic disorders. Methods: This study included 387 Caucasians divided into four groups: healthy controls, obese subjects without carbohydrate issues, prediabetic patients, and recently discovered type 2 diabetics. Results: Subject with body mass index ≥30kg/m2 and glycemic disorders showed significantly higher levels of IL-18 (249.77 ± 89.96 pg/ml; 259.01 ± 95.70 pg/ml; and 340.98 ± 127.65 pg/ml) compared with that of the control group (219.47 ± 110.53 pg/ml, p < 0.05). IL-18 also had significant positive associations with some anthropometric parameters, liver enzymes, fasting, post-load glucose, insulin, uric acid, and triglycerides while negative with HDL. The circulating IL-18 levels for differentiating subjects with carbohydrate disturbances and those with metabolic syndrome were determined by ROC analysis. The AUC for the disturbances of the carbohydrate metabolism was 0.597 (p = 0.001; 95% CI = 0.539 - 0.654) and for MS AUC was 0.581 (p = 0.021; 95 % CI = 0.516 - 0.647). Conclusion: Our data indicate that as the levels of IL-18 are increased the carbohydrate tolerance is deteriorated. However, the significance of IL-18 in the progression of diabetes mellitus and subsequent consequences requires further exploration.https://iji.sums.ac.ir/article_48523_a9ddec6b4bc690bfe4dd298952cf71ee.pdfcarbohydrate disturbancesil-18metabolic syndrome
spellingShingle Iveta Nedeva
Antoaneta Gateva
Yavor Assyov
Vera Karamfilova
Julieta Hristova
Kyosuke Yamanishi
Zdravko Kamenov
Haruki Okamura
IL-18 Serum Levels in Patients with Obesity, Prediabetes and Newly Diagnosed Type 2 Diabetes
Iranian Journal of Immunology
carbohydrate disturbances
il-18
metabolic syndrome
title IL-18 Serum Levels in Patients with Obesity, Prediabetes and Newly Diagnosed Type 2 Diabetes
title_full IL-18 Serum Levels in Patients with Obesity, Prediabetes and Newly Diagnosed Type 2 Diabetes
title_fullStr IL-18 Serum Levels in Patients with Obesity, Prediabetes and Newly Diagnosed Type 2 Diabetes
title_full_unstemmed IL-18 Serum Levels in Patients with Obesity, Prediabetes and Newly Diagnosed Type 2 Diabetes
title_short IL-18 Serum Levels in Patients with Obesity, Prediabetes and Newly Diagnosed Type 2 Diabetes
title_sort il 18 serum levels in patients with obesity prediabetes and newly diagnosed type 2 diabetes
topic carbohydrate disturbances
il-18
metabolic syndrome
url https://iji.sums.ac.ir/article_48523_a9ddec6b4bc690bfe4dd298952cf71ee.pdf
work_keys_str_mv AT ivetanedeva il18serumlevelsinpatientswithobesityprediabetesandnewlydiagnosedtype2diabetes
AT antoanetagateva il18serumlevelsinpatientswithobesityprediabetesandnewlydiagnosedtype2diabetes
AT yavorassyov il18serumlevelsinpatientswithobesityprediabetesandnewlydiagnosedtype2diabetes
AT verakaramfilova il18serumlevelsinpatientswithobesityprediabetesandnewlydiagnosedtype2diabetes
AT julietahristova il18serumlevelsinpatientswithobesityprediabetesandnewlydiagnosedtype2diabetes
AT kyosukeyamanishi il18serumlevelsinpatientswithobesityprediabetesandnewlydiagnosedtype2diabetes
AT zdravkokamenov il18serumlevelsinpatientswithobesityprediabetesandnewlydiagnosedtype2diabetes
AT harukiokamura il18serumlevelsinpatientswithobesityprediabetesandnewlydiagnosedtype2diabetes