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Vega-Cárdenas M, Vargas-Morales JM, Portales-Pérez DP, Gómez-Ojeda A, Luevano-Contreras C, Aradillas-García C. Soluble receptor for advanced glycation end-products (sRAGE) in childhood obesity: association with gene expression of RAGE and cardiometabolic markers. NUTR HOSP 2023; 40:960-966. [PMID: 37732356 DOI: 10.20960/nh.04666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/22/2023] Open
Abstract
Introduction Introduction: advanced glycation end-products (AGEs) interact with the receptor for AGEs (RAGE). Full-length RAGE is associated with intracellular signal transduction, and soluble-RAGE (sRAGE) lacks the transmembrane and cytoplasmic domains, acting as a competitive inhibitor of AGEs-RAGE binding. sRAGE levels in healthy children are associated with cell surface expression of RAGE. However, the expression of RAGE has not been explored in childhood obesity. Objective: the study aim was to evaluate the sRAGE levels and the gene expression of RAGE in children and its association with cardiometabolic markers. Methods: this is a cross-sectional study with 6-11-year children, 20 with overweight and 20 with obesity. Anthropometric measurements included waist circumference (cm) (WC), neck circumference (NC), weight (kg), fat mass (%), trunk fat (kg), muscular mass (kg), height (cm), and body mass index (BMI) (kg/m2). Blood samples following an overnight fast were collected to measure glucose (mg/dl) and lipid profile with colorimetric methods. sRAGE was determined in serum using the enzyme-linked immunosorbent assay (ELISA). Quantitative reverse transcription (RT-qPCR) was performed to analyze RAGE transcripts in peripheral blood mononuclear cells isolated by Ficoll®-Hypaque. Results: we found higher RAGE (p = 0.0315) and lower sRAGE (p = 0.0305) levels in the obesity group. sRAGE level showed a negative correlation with RAGE (r = -0.35) and BMI (r = -0.24), and positive with HDL-cholesterol (r = 0.29). Regression analysis suggests that HDL-C and RAGE levels are predictors of sRAGE levels. Conclusions: expression of RAGE is associated with lower sRAGE levels in childhood obesity. Moreover, obese children show higher cardiometabolic risk markers, and a positively associated with sRAGE.
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Affiliation(s)
- Mariela Vega-Cárdenas
- Centre for Applied Research in Environment and Health (CIACYT). Universidad Autónoma de San Luis Potosí
| | | | | | | | | | - Celia Aradillas-García
- Faculty of Medicine. Universidad Autónoma de San Luis Potosí. Centre for Applied Research in Environment and Health (CIACYT). Universidad Autónoma de San Luis Potosí
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2
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Csiha S, Molnár I, Halmi S, Hutkai D, Lőrincz H, Somodi S, Katkó M, Harangi M, Paragh G, Nagy EV, Berta E, Bodor M. Advanced glycation end products and their soluble receptor (sRAGE) in patients with Hashimoto's thyroiditis on levothyroxine substitution. Front Endocrinol (Lausanne) 2023; 14:1187725. [PMID: 37305044 PMCID: PMC10250717 DOI: 10.3389/fendo.2023.1187725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Accepted: 05/09/2023] [Indexed: 06/13/2023] Open
Abstract
Background Advanced glycation end products (AGEs) are heterogenous group of irreversible chemical moieties originated from non-enzymatic glycation and oxidation of proteins, nucleic acids, and lipids. The engagement of AGEs with their chief cellular receptor (RAGE) activates a myriad of signaling pathways contributing to the progression of chronic diseases like autoimmune thyroiditis, type 2 diabetes mellitus and its complications. Soluble RAGE (sRAGE) prevents AGE-RAGE interaction in a competitive manner. Objective We investigated the association between serum AGE, sRAGE and thyroid function in 73 Hashimoto thyroiditis patients (HT) on levothyroxine substitution, and in 83 age, BMI and gender-matched healthy controls. Methods The serum AGEs levels were determined by autofluorescence on a multi-mode microplate reader, and the serum sRAGE levels by ELISA method. Results Mean AGE level was lower (10.71 vs 11.45 AU/µg protein; p=0.046), while mean sRAGE level was higher (923 vs 755 pg/mL; p<0.0005) in the serum of HT patients than the controls. AGE correlated with age, while sRAGE correlated negatively with BMI in both groups. We found negative correlation between AGE and fT3 levels (r=-0.32; p=0.006) and sRAGE and TSH levels (r=-0.27; p=0.022) in HT patients, while we failed to find association between AGE, sRAGE and parameters of thyroid function in the control group. Median AGE/sRAGE ratio was lower in HT patients than in controls (2.4, IQR 1.9 - 3.1 vs 3.3, IQR 2.3 - 4.1 AU/pg; p < 0.001). In HT patients, the AGE/sRAGE ratio correlated positively with BMI and correlated negatively with fT3. Conclusion According to our results in HT patients lower TSH and higher fT3 levels within the reference range is accompanied by a favorable AGE/RAGE balance. Further investigations are needed to confirm these results.
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Affiliation(s)
- Sára Csiha
- Division of Endocrinology, Department of Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
- Department of Clinical Basics, Faculty of Pharmacy, University of Debrecen, Debrecen, Hungary
- Doctoral School of Health Sciences, University of Debrecen, Debrecen, Hungary
| | - István Molnár
- Department of Clinical Basics, Faculty of Pharmacy, University of Debrecen, Debrecen, Hungary
- Doctoral School of Health Sciences, University of Debrecen, Debrecen, Hungary
- Division of Metabolism, Department of Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Sándor Halmi
- Division of Endocrinology, Department of Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
- Doctoral School of Health Sciences, University of Debrecen, Debrecen, Hungary
| | - Dávid Hutkai
- Division of Nephrology, Department of Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
- Kálmán Laki Doctoral School, University of Debrecen, Debrecen, Hungary
| | - Hajnalka Lőrincz
- Division of Metabolism, Department of Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Sándor Somodi
- Division of Metabolism, Department of Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
- Department of Emergency Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Mónika Katkó
- Division of Endocrinology, Department of Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Mariann Harangi
- Division of Metabolism, Department of Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
- Institute of Health Studies, Faculty of Health Sciences, University of Debrecen, Debrecen, Hungary
| | - György Paragh
- Division of Metabolism, Department of Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Endre V. Nagy
- Division of Endocrinology, Department of Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Eszter Berta
- Department of Clinical Basics, Faculty of Pharmacy, University of Debrecen, Debrecen, Hungary
- Division of Metabolism, Department of Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Miklós Bodor
- Division of Endocrinology, Department of Medicine, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
- Department of Clinical Basics, Faculty of Pharmacy, University of Debrecen, Debrecen, Hungary
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Zhang X, You Y, Liu Q, Sun X, Chen W, Duan L. Reduced Circulating Soluble Receptor for Advanced Glycation End-products in Chronic Hepatitis B Are Associated with Hepatic Necroinflammation. Inflammation 2022; 45:2559-2569. [PMID: 35790658 DOI: 10.1007/s10753-022-01712-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 06/06/2022] [Accepted: 06/29/2022] [Indexed: 11/05/2022]
Abstract
The diagnosis and disease management of chronic hepatitis B (CHB) remain challenging due to the elusive assessment of disease severity. Recently, soluble receptor for advanced glycation end-products (sRAGE) has been implicated in the inflammatory-immune response initiated by liver injury. Nonetheless, its natural behavior and clinical importance in CHB remain elusive. One hundred and twenty CHB patients and forty healthy controls (HCs) were enrolled, and the serum sRAGE as well as RAGE expression in biopsy specimens from these subjects was analyzed, and correlation of sRAGE with clinical features as well as its potential predictive value for monitoring the CHB was also evaluated. Reduced serum sRAGE levels and decreased tissular RAGE expression were observed in CHB patients. sRAGE and RAGE were inversely correlated with gradually increased grades of hepatic necroinflammation as well as the routine indicator ALT. Furthermore, receiver operating characteristic (ROC) analysis showed that combination of ALT and sRAGE exerted better predictive power (area under the ROC curve (AUC) of 0.86) for hepatic necroinflammation than that of ALT (AUC of 0.82), sRAGE (AUC of 0.81), or sRAGE-to-ALT ratio (sRAGE/ALT) (AUC of 0.85) alone. More importantly, circulating sRAGE alone exerted valuable predictive power for hepatic moderate-to-severe necroinflammation in CHB patients but with normal ALT (AUC of 0.81) or minimally elevated ALT (AUC of 0.85). In conclusion, reduced serum sRAGE levels may imply an increased severity for necroinflammation, and it may serve as a potential alternative biomarker for monitoring hepatic necroinflammation in CHB.
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Affiliation(s)
- Xiuyu Zhang
- Department of Laboratory Medicine, The Second Affiliated Hospital of Chongqing Medical University, No.74 Linjiang Road, Yu Zhong District, Chongqing, 400010, China
| | - Yan You
- Department of Pathology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, China
| | - Qiao Liu
- Department of Infectious Diseases, Institute for Viral Hepatitis, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, China
| | - Xiaoyu Sun
- Department of Laboratory Medicine, The Second Affiliated Hospital of Chongqing Medical University, No.74 Linjiang Road, Yu Zhong District, Chongqing, 400010, China
| | - Weixian Chen
- Department of Laboratory Medicine, The Second Affiliated Hospital of Chongqing Medical University, No.74 Linjiang Road, Yu Zhong District, Chongqing, 400010, China
| | - Liang Duan
- Department of Laboratory Medicine, The Second Affiliated Hospital of Chongqing Medical University, No.74 Linjiang Road, Yu Zhong District, Chongqing, 400010, China.
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