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Casillas-Ramírez A, Micó-Carnero M, Sánchez-González A, Maroto-Serrat C, Trostchansky A, Peralta C. NO-IL-6/10-IL-1β axis: a new pathway in steatotic and non-steatotic liver grafts from brain-dead donor rats. Front Immunol 2023; 14:1178909. [PMID: 37593740 PMCID: PMC10427871 DOI: 10.3389/fimmu.2023.1178909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 07/11/2023] [Indexed: 08/19/2023] Open
Abstract
Introduction Brain death (BD) and steatosis are both risk factors for organ dysfunction or failure in liver transplantation (LT). Material and methods Here, we examine the role of interleukin 6 (IL- 6) and IL-10 in LT of both non-steatotic and steatotic liver recovered from donors after brain death (DBDs), as well as the molecular signaling pathways underlying the effects of such cytokines. Results BD reduced IL-6 levels only in nonsteatotic grafts, and diminished IL-10 levels only in steatotic ones. In both graft types, BD increased IL-1β, which was associated with hepatic inflammation and damage. IL-6 administration reduced IL-1β only in non-steatotic grafts and protected them against damage and inflammation. Concordantly, IL-1β inhibition via treatment with an IL-1 receptor antagonist caused the same benefits in non-steatotic grafts. Treatment with IL-10 decreased IL-1β only in steatotic grafts and reduced injury and inflammation specifically in this graft type. Blockading the IL-1β effects also reduced damage and inflammation in steatotic grafts. Also, blockade of IL-1β action diminished hepatic cAMP in both types of livers, and this was associated with a reduction in liver injury and inflammation, then pointing to IL-1β regulating cAMP generation under LT and BD conditions. Additionally, the involvement of nitric oxide (NO) in the effects of interleukins was evaluated. Pharmacological inhibition of NO in LT from DBDs prompted even more evident reductions of IL-6 or IL-10 in non-steatotic and steatotic grafts, respectively. This exacerbated the already high levels of IL-1β seen in LT from DBDs, causing worse damage and inflammation in both graft types. The administration of NO donors to non-steatotic grafts potentiated the beneficial effects of endogenous NO, since it increased IL-6 levels, and reduced IL-1β, inflammation, and damage. However, treatment with NO donors in steatotic grafts did not modify IL-10 or IL-1β levels, but induced more injurious effects tan the induction of BD alone, characterized by increased nitrotyrosine, lipid peroxidation, inflammation, and hepatic damage. Conclusion Our study thus highlights the specificity of new signaling pathways in LT from DBDs: NO-IL-6-IL-1β in non-steatotic livers and NO-IL-10-IL-1β in steatotic ones. This opens up new therapeutic targets that could be useful in clinical LT.
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Affiliation(s)
- Araní Casillas-Ramírez
- Department of Teaching and Research Sub-Direction, Hospital Regional de Alta Especialidad de Ciudad Victoria “Bicentenario 2010”, Ciudad Victoria, Mexico
- Facultad de Medicina e Ingeniería en Sistemas Computacionales de Matamoros, Universidad Autónoma de Tamaulipas, Matamoros, Mexico
| | - Marc Micó-Carnero
- Department of Liver, Digestive System and Metabolism, Institut d’Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
| | - Alfredo Sánchez-González
- Department of Teaching and Research Sub-Direction, Hospital Regional de Alta Especialidad de Ciudad Victoria “Bicentenario 2010”, Ciudad Victoria, Mexico
| | - Cristina Maroto-Serrat
- Department of Liver, Digestive System and Metabolism, Institut d’Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
| | - Andrés Trostchansky
- Departamento de Bioquímica and Centro de Investigaciones Biomédicas (CEINBIO), Facultad de Medicina, Universidad de la República, Montevideo, Uruguay
| | - Carmen Peralta
- Department of Liver, Digestive System and Metabolism, Institut d’Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
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Darra A, Singh V, Jena A, Popli P, Nada R, Gupta P, Bhadada SK, Singh AK, Sharma V, Bhattacharya A, Agrawal A, Dutta U. Hyperglycemia is associated with duodenal dysbiosis and altered duodenal microenvironment. Sci Rep 2023; 13:11038. [PMID: 37419941 PMCID: PMC10329043 DOI: 10.1038/s41598-023-37720-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Accepted: 06/26/2023] [Indexed: 07/09/2023] Open
Abstract
The gut microbiome influences the pathogenesis and course of metabolic disorders such as diabetes. While it is likely that duodenal mucosa associated microbiota contributes to the genesis and progression of increased blood sugar, including the pre-diabetic stage, it is much less studied than stool. We investigated paired stool and duodenal microbiota in subjects with hyperglycemia (HbA1c ≥ 5.7% and fasting plasma glucose > 100 mg/dl) compared to normoglycemic. We found patients with hyperglycemia (n = 33) had higher duodenal bacterial count (p = 0.008), increased pathobionts and reduction in beneficial flora compared to normoglycemic (n = 21). The microenvironment of duodenum was assessed by measuring oxygen saturation using T-Stat, serum inflammatory markers and zonulin for gut permeability. We observed that bacterial overload was correlated with increased serum zonulin (p = 0.061) and higher TNF-α (p = 0.054). Moreover, reduced oxygen saturation (p = 0.021) and a systemic proinflammatory state [increased total leukocyte count (p = 0.031) and reduced IL-10 (p = 0.015)] characterized the duodenum of hyperglycemic. Unlike stool flora, the variability in duodenal bacterial profile was associated with glycemic status and was predicted by bioinformatic analysis to adversely affect nutrient metabolism. Our findings offer new understanding of the compositional changes in the small intestine bacteria by identifying duodenal dysbiosis and altered local metabolism as potentially early events in hyperglycemia.
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Affiliation(s)
- Aarti Darra
- CSIR- Institute of Genomics and Integrative Biology, New Delhi, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Vandana Singh
- CSIR- Institute of Genomics and Integrative Biology, New Delhi, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Anuraag Jena
- Department of Gastroenterology, Post Graduate Institute of Medical Education and Research, Sector-12, Chandigarh, 160012, India
| | - Priyanka Popli
- Department of Gastroenterology, Post Graduate Institute of Medical Education and Research, Sector-12, Chandigarh, 160012, India
| | - Ritambhra Nada
- Department of Histopathology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Pankaj Gupta
- Department of Radiodiagnosis, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Sanjay Kumar Bhadada
- Department of Endocrinology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Anupam Kumar Singh
- Department of Gastroenterology, Post Graduate Institute of Medical Education and Research, Sector-12, Chandigarh, 160012, India
| | - Vishal Sharma
- Department of Gastroenterology, Post Graduate Institute of Medical Education and Research, Sector-12, Chandigarh, 160012, India
| | - Anish Bhattacharya
- Department of Nuclear Medicine, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Anurag Agrawal
- CSIR- Institute of Genomics and Integrative Biology, New Delhi, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Usha Dutta
- Department of Gastroenterology, Post Graduate Institute of Medical Education and Research, Sector-12, Chandigarh, 160012, India.
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Straat ME, Martinez-Tellez B, van Eyk HJ, Bizino MB, van Veen S, Vianello E, Stienstra R, Ottenhoff THM, Lamb HJ, Smit JWA, Jazet IM, Rensen PCN, Boon MR. Differences in Inflammatory Pathways Between Dutch South Asians vs Dutch Europids With Type 2 Diabetes. J Clin Endocrinol Metab 2023; 108:931-940. [PMID: 36262060 PMCID: PMC9999357 DOI: 10.1210/clinem/dgac598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 10/06/2022] [Indexed: 11/19/2022]
Abstract
CONTEXT South Asian individuals are more prone to develop type 2 diabetes (T2D) coinciding with earlier complications than Europids. While inflammation plays a central role in the development and progression of T2D, this factor is still underexplored in South Asians. OBJECTIVE This work aimed to study whether circulating messenger RNA (mRNA) transcripts of immune genes are different between South Asian compared with Europid patients with T2D. METHODS A secondary analysis was conducted of 2 randomized controlled trials of Dutch South Asian (n = 45; age: 55 ± 10 years, body mass index [BMI]: 29 ± 4 kg/m2) and Dutch Europid (n = 44; age: 60 ± 7 years, BMI: 32 ± 4 kg/m2) patients with T2D. Main outcome measures included mRNA transcripts of 182 immune genes (microfluidic quantitative polymerase chain reaction; Fluidigm Inc) in fasted whole-blood, ingenuity pathway analyses (Qiagen). RESULTS South Asians, compared to Europids, had higher mRNA levels of B-cell markers (CD19, CD79A, CD79B, CR2, CXCR5, IGHD, MS4A1, PAX5; all fold change > 1.3, false discovery rate [FDR] < 0.008) and interferon (IFN)-signaling genes (CD274, GBP1, GBP2, GBP5, FCGR1A/B/CP, IFI16, IFIT3, IFITM1, IFITM3, TAP1; all FC > 1.2, FDR < 0.05). In South Asians, the IFN signaling pathway was the top canonical pathway (z score 2.6; P < .001) and this was accompanied by higher plasma IFN-γ levels (FC = 1.5, FDR = 0.01). Notably, the ethnic difference in gene expression was larger for women (20/182 [11%]) than men (2/182 [1%]). CONCLUSION South Asian patients with T2D show a more activated IFN-signaling pathway compared to Europid patients with T2D, which is more pronounced in women than men. We speculate that a more activated IFN-signaling pathway may contribute to the more rapid progression of T2D in South Asian compared with Europid individuals.
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Affiliation(s)
- Maaike E Straat
- Correspondence: Mariëtte R. Boon, MD PhD, Division of Endocrinology, Department of Medicine, Leiden University Medical Center, Albinusdreef 2, 2333 ZA, Leiden, the Netherlands.
| | - Borja Martinez-Tellez
- Division of Endocrinology, Department of Medicine, Leiden University Medical Center, 2333 ZA Leiden, the Netherlands
- Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, 2333 ZA Leiden, the Netherlands
| | - Huub J van Eyk
- Division of Endocrinology, Department of Medicine, Leiden University Medical Center, 2333 ZA Leiden, the Netherlands
- Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, 2333 ZA Leiden, the Netherlands
| | - Maurice B Bizino
- Division of Endocrinology, Department of Medicine, Leiden University Medical Center, 2333 ZA Leiden, the Netherlands
- Department of Radiology, Leiden University Medical Center, 2333 ZA Leiden, the Netherlands
| | - Suzanne van Veen
- Department of Infectious Diseases, Leiden University Medical Center, 2333 ZA Leiden, the Netherlands
| | - Eleonora Vianello
- Department of Infectious Diseases, Leiden University Medical Center, 2333 ZA Leiden, the Netherlands
| | - Rinke Stienstra
- Nutrition, Metabolism and Genomics Group, Division of Human Nutrition and Health, Wageningen University, 6708 PB Wageningen, the Netherlands
- Department of Medicine, Radboud University Medical Center, 6525 XZ Nijmegen, the Netherlands
| | - Tom H M Ottenhoff
- Department of Infectious Diseases, Leiden University Medical Center, 2333 ZA Leiden, the Netherlands
| | - Hildo J Lamb
- Department of Radiology, Leiden University Medical Center, 2333 ZA Leiden, the Netherlands
| | - Johannes W A Smit
- Department of Medicine, Radboud University Medical Center, 6525 XZ Nijmegen, the Netherlands
| | - Ingrid M Jazet
- Division of Endocrinology, Department of Medicine, Leiden University Medical Center, 2333 ZA Leiden, the Netherlands
- Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, 2333 ZA Leiden, the Netherlands
| | - Patrick C N Rensen
- Division of Endocrinology, Department of Medicine, Leiden University Medical Center, 2333 ZA Leiden, the Netherlands
- Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, 2333 ZA Leiden, the Netherlands
| | - Mariëtte R Boon
- Division of Endocrinology, Department of Medicine, Leiden University Medical Center, 2333 ZA Leiden, the Netherlands
- Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, 2333 ZA Leiden, the Netherlands
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Islam H, Jackson GS, Yoon JSJ, Cabral-Santos C, Lira FS, Mui AL, Little JP. Sex differences in IL-10's anti-inflammatory function: Greater STAT3 activation and stronger inhibition of TNF-α production in male blood leukocytes ex vivo. Am J Physiol Cell Physiol 2022; 322:C1095-C1104. [PMID: 35508192 DOI: 10.1152/ajpcell.00091.2022] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Interleukin-10 (IL-10) inhibits pro-inflammatory cytokine production in blood leukocytes - an effect mediated by signal transducer and activator of transcription 3 (STAT3) activation. To examine potential sex-based differences in IL-10's anti-inflammatory function, we treated whole blood from healthy males and females (n=16 each; age: 28±6 years; body mass index: 23.5±2.3 kg/m2) with increasing concentrations of IL-10 (1-100 ng/mL) and quantified changes in phosphorylated STAT3 (pSTAT3) in CD14+ monocytes and CD4+ lymphocytes via flow cytometry. In parallel, liposaccharide (LPS)-stimulated whole-blood cultures were used to assess sex-based differences in IL-10's ability to inhibit tumour necrosis factor (TNF)-α production. IL-10 concentration-dependently increased pSTAT3 mean fluorescent intensity (MFI) in CD14+ and CD4+ cells (main effects of concentration, P<0.01) with males exhibiting larger changes in pSTAT3 MFI in both cell types (main effects of sex, P<0.01). Accordingly, IL-10-mediated inhibition of TNF-α production was more pronounced in males (main effect of sex, P<0.01) with changes in other monocyte-derived cytokines (IL-1b, IL-1RA, IL-15) also supporting a sexual dimorphism in IL-10 action (P<0.05). These sex-based differences were not explained by differences in circulating plasma IL-10 concentrations, basal IL-10 receptor expression in unstimulated CD14+ and CD4+ cells, nor the basal expression of IL-10 signaling proteins (STAT3, SHIP1, p38 MAPK) in unstimulated peripheral blood mononuclear cells. We conclude that IL-10's anti-inflammatory function differs between male and female blood leukocytes ex vivo. This sexual dimorphism should be considered in future work investigating IL-10's anti-inflammatory action in humans as it may represent a mechanism contributing to sex differences in overall immune function.
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Affiliation(s)
- Hashim Islam
- School of Health and Exercise Sciences, University of British Columbia Okanagan, Kelowna, BC, Canada
| | - Garett S Jackson
- School of Health and Exercise Sciences, University of British Columbia Okanagan, Kelowna, BC, Canada
| | - Jeff S J Yoon
- Department of Surgery, University of British Columbia, Vancouver, BC, Canada.,Department of Biochemistry and Molecular Biology, University of British Columbia, Vancouver, BC, Canada
| | - Carolina Cabral-Santos
- Exercise and Immunometabolism Research Group, Department of Physical Education, Post-Graduation Program in Movement Sciences, State University of São Paulo (UNESP), Presidente Prudente, São Paulo, Brazil
| | - Fabio S Lira
- Exercise and Immunometabolism Research Group, Department of Physical Education, Post-Graduation Program in Movement Sciences, State University of São Paulo (UNESP), Presidente Prudente, São Paulo, Brazil
| | - Alice L Mui
- Department of Surgery, University of British Columbia, Vancouver, BC, Canada.,Department of Biochemistry and Molecular Biology, University of British Columbia, Vancouver, BC, Canada
| | - Jonathan P Little
- School of Health and Exercise Sciences, University of British Columbia Okanagan, Kelowna, BC, Canada
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5
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Subramanian N, Tavira B, Hofwimmer K, Gutsmann B, Massier L, Abildgaard J, Juul A, Rydén M, Arner P, Laurencikiene J. Sex-specific regulation of IL-10 production in human adipose tissue in obesity. Front Endocrinol (Lausanne) 2022; 13:996954. [PMID: 36313784 PMCID: PMC9606404 DOI: 10.3389/fendo.2022.996954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Accepted: 09/20/2022] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Obesity-associated metabolic complications display sexual dimorphism and can be impacted by cytokines. We previously showed that interleukin-10 (IL-10) was upregulated in white adipose tissue (WAT) of obese women with type 2 diabetes (T2D). Whether this pertains to men is unknown. The aim of this study was to compare the impact of obesity and T2D on WAT IL-10 levels in men versus women. METHODS Plasma and subcutaneous WAT biopsies were obtained from 108 metabolically well-characterized individuals. WAT IL10 expression/secretion and WAT-resident IL-10-secreting macrophage number were measured. Circulating sex hormone levels were correlated to WAT IL10 expression in 22 individuals and sex hormone effects on macrophage IL10 expression were investigated in vitro. RESULTS Obese women with T2D showed increased IL10 expression/secretion and IL-10-secreting WAT macrophage number compared to other female groups. This difference was absent in men. Non-obese women and men with T2D showed similar IL-10 levels compared to healthy controls, indicating that T2D alone does not regulate IL-10. Although WAT IL10 expression correlated with serum estrone (E1) concentrations, recombinant E1 did not affect macrophage IL10 expression in vitro. CONCLUSION WAT IL-10 levels are higher in women with obesity and T2D, but not in men and this effect is primarily attributed to obesity per se. This is less likely to be driven by circulating sex hormones. We propose that the WAT IL-10 might exert protective effects in obesity-associated chronic inflammation in women which could be one of the contributing factors for the decreased morbidity observed in women during obesity than men.
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Affiliation(s)
- Narmadha Subramanian
- Lipid laboratory, Unit of Endocrinology, Department of Medicine Huddinge, Karolinska Institutet, Stockholm, Sweden
- *Correspondence: Narmadha Subramanian, ; Jurga Laurencikiene,
| | - Beatriz Tavira
- Lipid laboratory, Unit of Endocrinology, Department of Medicine Huddinge, Karolinska Institutet, Stockholm, Sweden
| | - Kaisa Hofwimmer
- Lipid laboratory, Unit of Endocrinology, Department of Medicine Huddinge, Karolinska Institutet, Stockholm, Sweden
| | - Beate Gutsmann
- Medical Department III – Endocrinology, Nephrology, Rheumatology, University of Leipzig Medical Center, Leipzig, Germany
| | - Lucas Massier
- Lipid laboratory, Unit of Endocrinology, Department of Medicine Huddinge, Karolinska Institutet, Stockholm, Sweden
- Medical Department III – Endocrinology, Nephrology, Rheumatology, University of Leipzig Medical Center, Leipzig, Germany
| | - Julie Abildgaard
- Centre for Physical Activity Research, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
- Danish Diabetes Academy, Odense University Hospital, Odense, Denmark
| | - Anders Juul
- Department of Growth and Reproduction, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Mikael Rydén
- Lipid laboratory, Unit of Endocrinology, Department of Medicine Huddinge, Karolinska Institutet, Stockholm, Sweden
| | - Peter Arner
- Lipid laboratory, Unit of Endocrinology, Department of Medicine Huddinge, Karolinska Institutet, Stockholm, Sweden
| | - Jurga Laurencikiene
- Lipid laboratory, Unit of Endocrinology, Department of Medicine Huddinge, Karolinska Institutet, Stockholm, Sweden
- *Correspondence: Narmadha Subramanian, ; Jurga Laurencikiene,
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6
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Islam H, Neudorf H, Mui AL, Little JP. Interpreting 'anti-inflammatory' cytokine responses to exercise: focus on interleukin-10. J Physiol 2021; 599:5163-5177. [PMID: 34647335 DOI: 10.1113/jp281356] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 09/22/2021] [Indexed: 12/17/2022] Open
Abstract
Circulating concentrations of canonically pro- and anti-inflammatory cytokines are commonly measured when evaluating the anti-inflammatory effects of exercise. An important caveat to interpreting systemic cytokine concentrations as evidence for the anti-inflammatory effects of exercise is the observed dissociation between circulating cytokine concentrations and cytokine function at the tissue/cellular level. The dichotomization of cytokines as pro- or anti-inflammatory also overlooks the context dependence of cytokine function, which can vary depending on the physiological state being studied, the cytokine's cellular source/target, and magnitude of cytokine responses. We re-evaluate our current understanding of anti-inflammatory cytokine responses to exercise by highlighting nuances surrounding the interpretation of altered systemic cytokine concentrations as evidence for changes in inflammatory processes occurring at the tissue/cellular level. We highlight the lesser known pro-inflammatory and immunostimulatory actions of the prototypical anti-inflammatory cytokine, interleukin (IL)-10, including the potentiation of interferon gamma production during endotoxaemia, CD8+ T cell activation in tumour bearing rodents and cancer patients in vivo, and CD8+ T lymphocyte and natural killer cell activation in vitro. IL-10's more well-established anti-inflammatory actions can also be blunted following exercise training and under chronic inflammatory states such as type 2 diabetes (T2D) independently of circulating IL-10 concentrations. The resistance to IL-10's anti-inflammatory action in T2D coincides with blunted STAT3 phosphorylation and can be restored with small-molecule activators of IL-10 signalling, highlighting potential therapeutic avenues for restoring IL-10 action. We posit that inferences based on altered circulating cytokine concentrations alone can miss important functional changes in cytokine action occurring at the tissue/cellular level.
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Affiliation(s)
- Hashim Islam
- School of Health and Exercise Sciences, University of British Columbia Okanagan, Kelowna, BC, Canada
| | - Helena Neudorf
- School of Health and Exercise Sciences, University of British Columbia Okanagan, Kelowna, BC, Canada
| | - Alice L Mui
- Department of Surgery, University of British Columbia, Vancouver, BC, Canada.,Department of Biochemistry and Molecular Biology, University of British Columbia, Vancouver, BC, Canada
| | - Jonathan P Little
- School of Health and Exercise Sciences, University of British Columbia Okanagan, Kelowna, BC, Canada
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7
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Fontes-Cal TCM, Mattos RT, Medeiros NI, Pinto BF, Belchior-Bezerra M, Roque-Souza B, Dutra WO, Ferrari TCA, Vidigal PVT, Faria LC, Couto CA, Gomes JAS. Crosstalk Between Plasma Cytokines, Inflammation, and Liver Damage as a New Strategy to Monitoring NAFLD Progression. Front Immunol 2021; 12:708959. [PMID: 34447378 PMCID: PMC8383065 DOI: 10.3389/fimmu.2021.708959] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Accepted: 07/27/2021] [Indexed: 12/12/2022] Open
Abstract
Cytokines are involved in the immunopathogenesis of nonalcoholic fatty liver disease (NAFLD), but the relationship between them and clinical parameters of NAFLD progression is still unknown. Using flow cytometry, we evaluated the plasma levels of IL-1β, IL-6, IL-12, TNF and IL-10 and their association with clinical and biochemical parameters of liver function during simple steatosis (NAFL) and nonalcoholic steatohepatitis (NASH) in biopsy-proven patients. The NASH patients showed higher levels of IL-6 associated with a lower IL-10/IL-6 ratio. Besides heatmaps were similar in the NAFL and NASH groups, the same did not occur in signature curves, the NASH patients were high producers to IL-12 and IL-6 while the NAFL patients were not high producers of any cytokines evaluated. Integrative biomarker network analysis revealed that cytokines are differently correlated with clinical parameters, while IL-12, IL-10 presented moderate and negative correlations with glycemic and lipid profile in the NAFL group. The NASH group IL-12 and TNF revealed stronger and positive correlations with transient elastography parameters and NAFLD liver fibrosis score. These data suggest that IL-6 and IL-10 might act in chronic inflammation and insulin resistance whereas IL-12 and TNF may be involved in promoting liver damage and NAFLD progression. Plasma concentration analysis of these molecules and their association with clinical parameters can be used as new biomarkers to monitoring NAFLD progression and to reflect NASH development.
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Affiliation(s)
- Tereza C. M. Fontes-Cal
- Laboratório de Biologia das Interações Celulares, Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Rafael T. Mattos
- Laboratório de Biologia das Interações Celulares, Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Nayara I. Medeiros
- Laboratório de Biologia das Interações Celulares, Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
- Imunologia Celular e Molecular, Instituto René Rachou, Fundação Oswaldo Cruz, Belo Horizonte, Brazil
| | - Bruna F. Pinto
- Laboratório de Biologia das Interações Celulares, Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Mayara Belchior-Bezerra
- Laboratório de Biologia das Interações Celulares, Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Bruna Roque-Souza
- Laboratório de Biologia das Interações Celulares, Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Walderez O. Dutra
- Laboratório de Biologia das Interações Celulares, Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
- Instituto Nacional de Ciência e Tecnologia em Doenças Topicais, INCT-DT, Belo Horizonte, Brazil
| | - Teresa C. A. Ferrari
- Instituto Alfa de Gastroenterologia, Hospital das Clínicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Paula V. T. Vidigal
- Departamento de Anatomia Patológica e Medicina Legal, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Luciana C. Faria
- Instituto Alfa de Gastroenterologia, Hospital das Clínicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Cláudia A. Couto
- Instituto Alfa de Gastroenterologia, Hospital das Clínicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Juliana A. S. Gomes
- Laboratório de Biologia das Interações Celulares, Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
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8
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Kim SJ, Lim J, Nam GE, Park HS. Correlation between Serum Lipid Parameters and Interleukin-10 Concentration in Obese Individuals. J Obes Metab Syndr 2021; 30:173-177. [PMID: 34011692 PMCID: PMC8277584 DOI: 10.7570/jomes20122] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 03/12/2021] [Accepted: 03/26/2021] [Indexed: 01/03/2023] Open
Abstract
Background The role of interleukin-10 (IL-10) in humans is controversial because IL-10 has been proposed to exhibit both pro- and anti-inflammatory effects. We aimed to determine the relationships between the changes in these parameters in obese individuals participating in a weight-reduction program. Methods We measured cardiometabolic parameters including lipid profile and serum IL-10 concentration before and after completion of a 12-week weight-reduction program in 63 non-diabetic obese subjects with a body mass index ≥27 kg/m2 who had comorbid hypertension or dyslipidemia. All the participants were provided with individual intervention sessions designed to implement lifestyle modifications and administered 120 mg orlistat three times daily for 12 weeks. The relationships between changes in serum IL-10 concentration and changes in cardiometabolic risk factors were analyzed. Results Changes in serum IL-10 concentration were significantly negatively correlated with changes in total cholesterol (r=−0.377), high-density lipoprotein cholesterol (HDL-C; r=−0.377), and low-density lipoprotein cholesterol (LDL-C; r=−0.278) concentrations. However, there were no correlations between changes in serum IL-10 concentration and changes in other cardiometabolic parameters. Conclusion Serum IL-10 concentration can increase as serum total cholesterol decreases. Additional studies are needed to explore the mechanisms linking changes in serum IL-10 with serum LDL-C and HDL-C concentrations.
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Affiliation(s)
- Soo Jin Kim
- Department of Family Medicine, University of Ulsan College of Medicine, Seoul, Korea
| | - Jisun Lim
- Department of Family Medicine, University of Ulsan College of Medicine, Seoul, Korea
| | - Ga Eun Nam
- Department of Family Medicine, Korea University College of Medicine, Seoul, Korea
| | - Hye Soon Park
- Department of Family Medicine, University of Ulsan College of Medicine, Seoul, Korea
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9
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Gao C, Peng F, Xie X, Peng L. The Relationship Between Blood Interleukin-10 and Cardiovascular Mortality and All-Cause Mortality After Kidney Transplantation. Risk Manag Healthc Policy 2021; 14:1481-1489. [PMID: 33883954 PMCID: PMC8053705 DOI: 10.2147/rmhp.s309764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Accepted: 03/29/2021] [Indexed: 11/23/2022] Open
Abstract
Background Circulating interleukin (IL)-10 is associated with adverse cardiovascular events in chronic kidney disease (CKD). Whether IL-10 predicts cardiovascular and all-cause mortality after kidney transplantation (KT) is unknown. Methods The association between plasma IL-10 and cardiovascular and all-cause mortality was analyzed in a prospective cohort, which included 418 stable kidney transplant recipients, at a median of 3.6 (range=1.2–8.4) years after transplantation. Multivariate Cox regression models were performed to adjusting related confounding factors. Results Median level of IL-10 in KT patient was 22.3 pg/mL. Multivariate Cox regression analysis revealed that serum levels IL-10 were significantly and independently associated with cardiovascular mortality after adjusting for age, gender, BMI, current smoker, current drinker, cause of kidney disease, systolic and diastolic BP, laboratory indexes and medication (HR=1.26, 95% CI 1.19–2.08, P-trend<0.001). The multivariate Cox analysis also suggested that serum levels IL-10 were independently associated with all-cause mortality (HR=1.25, 95% CI 1.11–1.8, P-trend=0.023) after controlling these same related confounding factors. Sensitivity and stratified analysis showed that the significant association can be affected by history of acute rejection. Conclusion Plasma IL-10 is independently and significant associated with cardiovascular and all-cause mortality after kidney transplantation. The significant association is independent of cardiovascular risk factors and other related confounding factors.
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Affiliation(s)
- Chen Gao
- Department of Kidney Transplantation, The Second Xiangya Hospital of Central South University, Changsha, Hunan, 410011, People's Republic of China
| | - Fenghua Peng
- Department of Kidney Transplantation, The Second Xiangya Hospital of Central South University, Changsha, Hunan, 410011, People's Republic of China
| | - Xubiao Xie
- Department of Kidney Transplantation, The Second Xiangya Hospital of Central South University, Changsha, Hunan, 410011, People's Republic of China
| | - Longkai Peng
- Department of Kidney Transplantation, The Second Xiangya Hospital of Central South University, Changsha, Hunan, 410011, People's Republic of China
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10
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Role of curd and yogurt in establishment and progression of diabetes through protein glycation and induction of inflammation. FOOD BIOSCI 2021. [DOI: 10.1016/j.fbio.2020.100829] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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11
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Kartika R, Wibowo H, Purnamasari D, Pradipta S, Larasati RA. Altered Indoleamine 2,3-Dioxygenase Production and Its Association to Inflammatory Cytokines in Peripheral Blood Mononuclear Cells Culture of Type 2 Diabetes Mellitus. Int J Tryptophan Res 2020; 13:1178646920978236. [PMID: 33343199 PMCID: PMC7731706 DOI: 10.1177/1178646920978236] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Accepted: 11/04/2020] [Indexed: 12/25/2022] Open
Abstract
Aim: To analyze indoleamine 2,3-dioxygenase (IDO) production in the cell culture supernatant of phytohemagglutinin (PHA)-stimulated peripheral blood mononuclear cells (PBMCs) from type 2 DM (T2DM) patients and investigate IDO’s association to pro- and anti-inflammatory cytokines. Subjects and methods: PBMC samples were collected from 21 T2DM patients and 17 normoglycemic participants, then stimulated with PHA for 3 days. Cytokine and IDO concentrations were measured in the PBMC culture supernatants. In vitro production of TNF-α, IL-6, interferon-γ, and IL-10 were measured using multiplex immunoassay. IDO concentration was assessed using ELISA. To assess how PHA stimulation altered IDO production and to minimize the unstimulated baseline effect of T2DM, we subtracted the PHA-stimulated IDO concentration from the unstimulated one. IBM SPSS version 23 was used for statistical analysis. Results: The IDO concentrations in the PBMC culture supernatants were significantly higher in T2DM patients regardless of whether they were unstimulated (P < .001) or PHA-stimulated (P = .012). Reduced IDO production was observed in 52.8% of T2DM patients and was associated with older age and lower interferon-γ levels. Conversely, 42.8% of T2DM patients showed increased IDO concentrations, which were correlated with the IL-6/IL-10 ratio (r = 0.683, P = .021) and interferon-γ/IL-10 ratio (r = 0.517, P = .077). Conclusion: The interferon-γ level was reduced in the PBMC culture supernatant of T2DM patients with reduced IDO production. Reduced IDO production in T2DM patients following PHA stimulation was associated with older age and, notably, higher baseline IDO concentrations. Since IDO is primarily produced by dendritic cells, reduced IDO production after PHA stimulation may indicate dendritic cell dysfunction.
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Affiliation(s)
- Rona Kartika
- Master's Programme in Biomedical Sciences, Faculty of Medicine, Universitas Indonesia, Jakarta Indonesia
| | - Heri Wibowo
- Department of Parasitology, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia
| | - Dyah Purnamasari
- Division of Metabolic Endocrinology and Diabetes, Department of Internal Medicine, Faculty of Medicine, Cipto Mangunkusumo National Public Hospital, Universitas Indonesia, Jakarta, Indonesia
| | - Saraswati Pradipta
- Master's Programme in Biomedical Sciences, Faculty of Medicine, Universitas Indonesia, Jakarta Indonesia
| | - Rahma A Larasati
- Master's Programme in Biomedical Sciences, Faculty of Medicine, Universitas Indonesia, Jakarta Indonesia.,Department of Biomedicines, Faculty of Medicine, Universitas Muhammadiyah Jakarta, Jakarta, Indonesia
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12
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Choi EW, Lee M, Song JW, Kim K, Lee J, Yang J, Lee SH, Kim IY, Choi JH, Seong JK. Fas mutation reduces obesity by increasing IL-4 and IL-10 expression and promoting white adipose tissue browning. Sci Rep 2020; 10:12001. [PMID: 32686763 PMCID: PMC7371740 DOI: 10.1038/s41598-020-68971-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Accepted: 06/23/2020] [Indexed: 12/15/2022] Open
Abstract
Brown adipose tissue generates heat via the mitochondrial uncoupling protein UCP1 to protect against obesity and hypothermia. Fas mutant MRL/lpr mice exhibit a significantly leaner phenotype compared to wild type MRL/MpJ mice. In this study, we evaluated the inflammatory cell population in the adipose tissue of MRL/lpr mice, which could potentially influence their lean phenotype. Furthermore, we compared beige fat activity between the MRL/MpJ and MRL/lpr mice. Fas mutation resulted in high body temperature, improved glucose tolerance, and decreased fat mass and adipocyte size. Fas mutation prevented high-fat diet-induced obesity and decreased the white adipose tissue M1:M2 ratio. When mice were fed a high-fat diet, UCP1, IL-4, IL-10, and tyrosine hydroxylase genes had significantly higher expression in Fas-mutant mice than in wild type mice. After a cold challenge, UCP1 expression and browning were also significantly higher in the Fas-mutant mice. In summary, Fas-mutant mice are resistant to high-fat diet-induced obesity due to increased IL-4 and IL-10 levels and the promotion of thermogenic protein activity and browning in their adipose tissues. STAT6 activation might contribute to M2 polarisation by increasing IL-4 and IL-10 levels while increases in M2 and tyrosine hydroxylase levels promote browning in response to Fas mutation.
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Affiliation(s)
- Eun Wha Choi
- Department of Veterinary Clinical Pathology, College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University, 1 Kangwondaehak-gil, Chuncheon-si, Gangwon-do, 24341, Republic of Korea. .,Laboratory Animal Research Center, Samsung Biomedical Research Institute, Samsung Medical Center, 81 Irwon-ro, Gangnam-gu, Seoul, 06351, Republic of Korea.
| | - Minjae Lee
- Laboratory Animal Research Center, Samsung Biomedical Research Institute, Samsung Medical Center, 81 Irwon-ro, Gangnam-gu, Seoul, 06351, Republic of Korea
| | - Ji Woo Song
- Laboratory Animal Research Center, Samsung Biomedical Research Institute, Samsung Medical Center, 81 Irwon-ro, Gangnam-gu, Seoul, 06351, Republic of Korea
| | - Kyeongdae Kim
- Department of Life Science, College of Natural Sciences, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul, 04763, Republic of Korea
| | - Jungmin Lee
- Laboratory Animal Research Center, Samsung Biomedical Research Institute, Samsung Medical Center, 81 Irwon-ro, Gangnam-gu, Seoul, 06351, Republic of Korea.,Laboratory of Developmental Biology and Genomics, BK21 Plus Program for Advanced Veterinary Science, Research Institute for Veterinary Science, College of Veterinary Medicine, and Korea Mouse Phenotyping Center, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Jehoon Yang
- Laboratory Animal Research Center, Samsung Biomedical Research Institute, Samsung Medical Center, 81 Irwon-ro, Gangnam-gu, Seoul, 06351, Republic of Korea
| | - Seo Hyun Lee
- Laboratory of Developmental Biology and Genomics, BK21 Plus Program for Advanced Veterinary Science, Research Institute for Veterinary Science, College of Veterinary Medicine, and Korea Mouse Phenotyping Center, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Il Yong Kim
- Laboratory of Developmental Biology and Genomics, BK21 Plus Program for Advanced Veterinary Science, Research Institute for Veterinary Science, College of Veterinary Medicine, and Korea Mouse Phenotyping Center, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Jae-Hoon Choi
- Department of Life Science, College of Natural Sciences, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul, 04763, Republic of Korea
| | - Je Kyung Seong
- Laboratory of Developmental Biology and Genomics, BK21 Plus Program for Advanced Veterinary Science, Research Institute for Veterinary Science, College of Veterinary Medicine, and Korea Mouse Phenotyping Center, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea. .,Interdiscplinary Program for Bioinformatics, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea.
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13
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Kartika R, Purnamasari D, Pradipta S, Larasati RA, Wibowo H. Impact of Low Interferon-γ and IL-10 Levels on TNF-α and IL-6 Production by PHA-Induced PBMCs in Type 2 Diabetes Mellitus. J Inflamm Res 2020; 13:187-193. [PMID: 32425577 PMCID: PMC7190380 DOI: 10.2147/jir.s245064] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Accepted: 04/07/2020] [Indexed: 12/12/2022] Open
Abstract
Purpose In this study, we analyzed the production of interferon γ (IFN-γ) and interleukin 10 (IL-10) by peripheral blood mononuclear cells (PBMCs) in patients with type 2 diabetes mellitus (T2DM). We aimed to investigate the capacity of monocytes to produce tumor necrosis factor-α (TNF-α) and interleukin 6 (IL-6) following IFN-γ stimulation and the associated role of IL-10 in TNF-α and IL-6 production. Patients and Methods In vitro experiments were conducted on PBMCs obtained from 19 patients with T2DM and 17 healthy participants. PBMCs were isolated from venous blood by density gradient centrifugation, followed by 3-day phytohemagglutinin induction. In vitro production of TNF-α, IL-6, IFN-γ, and IL-10 was measured using the multiplex immunoassay. Statistical analysis was performed using IBM SPSS 23 version. Results IFN-γ concentration in the T2DM group was significantly lower than that in control group (T2DM 7,700.86 ± 3,037.77 vs control 10,672.69 ± 5,625.50 pg/mL; p = 0.048). However, TNF-α, IL-6, and IL-10 levels showed no significant difference between the two groups. The TNF-α/IFN-γ and IL-6/IFN-γ ratios were significantly higher in T2DM than in the control group (p = 0.026 and p = 0.048, respectively). In T2DM, the high TNF-α/IFN-γ ratio was consistent, with the low baseline IL-10 level (p = 0.022). Conclusion In T2DM, T-cell response is impaired with significantly reduced IFN-γ production, and simultaneously, circulatory monocytes show enhanced cellular responsiveness to inflammatory stimuli. The low baseline IL-10 level likely contributes to such an immune response.
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Affiliation(s)
- Rona Kartika
- Master Program in Biomedical Sciences, Faculty of Medicine, Universitas Indonesia, Jakarta 10430, Indonesia
| | - Dyah Purnamasari
- Division of Metabolic Endocrinology and Diabetes, Department of Internal Medicine, Faculty of Medicine, Universitas Indonesia, Jakarta 10430, Indonesia
| | - Saraswati Pradipta
- Master Program in Biomedical Sciences, Faculty of Medicine, Universitas Indonesia, Jakarta 10430, Indonesia
| | - Rahma A Larasati
- Department of Biomedicines, Faculty of Medicine, Universitas Muhammadiyah Jakarta, Jakarta, Indonesia
| | - Heri Wibowo
- Department of Parasitology, Faculty of Medicine, Universitas Indonesia, Jakarta 10430, Indonesia
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14
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Mahlangu TJ, Dludla PV, Mxinwa V, Mkandla Z, Tiano L, Louw J, Mutize T, Nyambuya TM, Nkambule BB. Elevated T-helper 2 cytokine levels in high fat diet-fed C57BL/6 mice are attenuated by short-term 6-week treatment with a combination of low-dose aspirin and metformin. Cytokine 2020; 128:154999. [PMID: 32014718 DOI: 10.1016/j.cyto.2020.154999] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 01/08/2020] [Accepted: 01/13/2020] [Indexed: 02/06/2023]
Abstract
OBJECTIVE To evaluate T-helper cytokine responses in a short-term high fat diet (HFD) induced impaired glucose metabolism. To further evaluate the modulation of T-helper 1 (Th1) and T-helper 2 (Th2) cytokines using short-term low-dose aspirin in combination with metformin. DESIGN Two experiments were carried out in this study in order to evaluate the T-helper cytokine profiles in a state of impaired glucose metabolism. A total of 28 six-week-old male C57BL/6 mice were used in this study. In the first experiment, mice were fed either a high fat diet or low fat diet for a duration of 10 weeks. We then determined the Th1, Th2 and T-helper 17 (Th17) cytokine profiles. In the second experiment, we evaluated whether the short term 6-week treatment with low-dose aspirin in combination with metformin modulates T-helper cytokine profiles of the HFD-fed mice. MEASUREMENTS In the first experiment, we measured the body weights, blood glucose levels, insulin levels, lipid profiles and haematological parameters. We further performed oral glucose tolerance testing following an 8-hour fast and serum Th1, Th2 and Th17 cytokine levels were also determined following short-term 8-week diet-feeding and 6-week low-dose aspirin and combined metformin with low-dose aspirin treatment. RESULTS High fat diet-feeding caused a marked increase in circulating peripheral blood lymphocytes, which was attenuated by short-term low-dose aspirin treatment. Moreover, the HFD feeding resulted in 2-fold increase in total cholesterol and a 4-fold increase in low-density lipoprotein cholesterol when compared to the low-fat diet-fed group (p < 0.05). In the high fat diet group, impaired glucose metabolism was associated with skewed Th2 responses without alterations in the Th1 and Th17 cytokine profiles. Interestingly the short-term treatment with low-dose aspirin showed no effect on the selected T-helper 1 cytokine IFN-Ƴ (P > 0.05). While the combination of low-dose aspirin with metformin considerably reduced the levels of serum IFN-Ƴ (P < 0.05). Furthermore low-dose aspirin treatment showed the modest attenuation of the selected Th2 cytokines, IL-10 and IL-13 when compared to low-dose aspirin with metformin (P < 0.01). CONCLUSION The early immunological and metabolic changes that occur in a state impaired glucose tolerance are accompanied by the increased production of Th2 cell cytokines. The short-term treatment using low-dose aspirin combined with metformin may provide therapeutic benefits in preventing complications associated with dysregulated Th2 cell responses.
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Affiliation(s)
- Thabsile J Mahlangu
- University of KwaZulu-Natal (UKZN), University Road, Westville, Private Bag X54001, Durban 4000, South Africa
| | - Phiwayinkosi V Dludla
- Biomedical Research and Innovation Platform (BRIP), South African Medical Research Council, Tygerberg 7505, South Africa; Department of Life and Environmental Sciences, Polytechnic University of Marche, Ancona 60131, Italy.
| | - Vuyolwethu Mxinwa
- University of KwaZulu-Natal (UKZN), University Road, Westville, Private Bag X54001, Durban 4000, South Africa.
| | - Zibusiso Mkandla
- University of KwaZulu-Natal (UKZN), University Road, Westville, Private Bag X54001, Durban 4000, South Africa
| | - Luca Tiano
- Department of Life and Environmental Sciences, Polytechnic University of Marche, Ancona 60131, Italy.
| | - Johan Louw
- Biomedical Research and Innovation Platform (BRIP), South African Medical Research Council, Tygerberg 7505, South Africa; Department of Biochemistry and Microbiology, University of Zululand, KwaDlangezwa 3886, South Africa.
| | - Tinashe Mutize
- University of KwaZulu-Natal (UKZN), University Road, Westville, Private Bag X54001, Durban 4000, South Africa.
| | - Tawanda M Nyambuya
- University of KwaZulu-Natal (UKZN), University Road, Westville, Private Bag X54001, Durban 4000, South Africa; Department of Health Sciences, Faculty of Health and Applied Sciences, Namibia University of Science and Technology, Windhoek 9000, Namibia
| | - Bongani B Nkambule
- University of KwaZulu-Natal (UKZN), University Road, Westville, Private Bag X54001, Durban 4000, South Africa.
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15
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Inflammation in Post-Traumatic Stress Disorder (PTSD): A Review of Potential Correlates of PTSD with a Neurological Perspective. Antioxidants (Basel) 2020; 9:antiox9020107. [PMID: 31991875 PMCID: PMC7070581 DOI: 10.3390/antiox9020107] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Revised: 01/22/2020] [Accepted: 01/22/2020] [Indexed: 12/18/2022] Open
Abstract
Post-traumatic stress disorder (PTSD) is a chronic condition characterized by symptoms of physiological and psychosocial burden. While growing research demonstrated signs of inflammation in PTSD, specific biomarkers that may be representative of PTSD such as the detailed neural correlates underlying the inflammatory responses in relation to trauma exposure are seldom discussed. Here, we review recent studies that explored alterations in key inflammatory markers in PTSD, as well as neuroimaging-based studies that further investigated signs of inflammation within the brain in PTSD, as to provide a comprehensive summary of recent literature with a neurological perspective. A search was conducted on studies published from 2009 through 2019 in PubMed and Web of Science. Fifty original articles were selected. Major findings included elevated levels of serum proinflammatory cytokines in individuals with PTSD across various trauma types, as compared with those without PTSD. Furthermore, neuroimaging-based studies demonstrated that altered inflammatory markers are associated with structural and functional alterations in brain regions that are responsible for the regulation of stress and emotion, including the amygdala, hippocampus, and frontal cortex. Future studies that utilize both central and peripheral inflammatory markers are warranted to elucidate the underlying neurological pathway of the pathophysiology of PTSD.
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16
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Henstridge DC, Abildgaard J, Lindegaard B, Febbraio MA. Metabolic control and sex: A focus on inflammatory-linked mediators. Br J Pharmacol 2019; 176:4193-4207. [PMID: 30820935 DOI: 10.1111/bph.14642] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Revised: 12/05/2018] [Accepted: 01/21/2019] [Indexed: 12/15/2022] Open
Abstract
Men and women have many differing biological and physiological characteristics. Thus, it is no surprise that the control of metabolic processes and the mechanisms underlying metabolic-related diseases have sex-specific components. There is a clear metabolic sexual dimorphism in that up until midlife, men have a far greater likelihood of acquiring cardio-metabolic disease than women. Following menopause, however, this difference is reduced, suggestive of a protective role of the female sex hormones. Inflammatory processes have been implicated in the pathogenesis of cardio-metabolic disease with human studies correlating metabolic disease acquisition or risk with levels of various inflammatory markers. Rodent studies employing genetic modifications or novel pharmacological approaches have provided mechanistic insight into the role of these inflammatory mediators. Sex differences impact inflammatory processes and the subsequent biological response. As a consequence, this may affect how inflammation alters metabolic processes between the sexes. Recently, some of our work in the field of inflammatory genes and metabolic control identified a sexual dimorphism in a preclinical model and caused us to question the frequency and scale of such findings in the literature. This review concentrates on inflammatory-related signalling in relation to obesity, insulin resistance, and type 2 diabetes and highlights the differences observed between males and females. Differences in the activation and signalling of various inflammatory genes and proteins present another reason why studying both male and female patients or animals is important in the context of understanding and finding therapeutics for metabolic-related disease. LINKED ARTICLES: This article is part of a themed section on The Importance of Sex Differences in Pharmacology Research. To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v176.21/issuetoc.
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Affiliation(s)
- Darren C Henstridge
- Molecular Metabolism & Aging Laboratory, Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia.,School of Health Sciences, University of Tasmania, Launceston, Tasmania, Australia
| | - Julie Abildgaard
- The Centre of Inflammation and Metabolism and the Centre for Physical Activity Research, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Birgitte Lindegaard
- The Centre of Inflammation and Metabolism and the Centre for Physical Activity Research, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark.,Department of Pulmonary and Infectious Diseases, Nordsjaellands Hospital, Hillerød, Denmark
| | - Mark A Febbraio
- Division of Diabetes & Metabolism, Garvan Institute of Medical Research, Sydney, New South Wales, Australia.,Drug Discover Biology, Monash Institute of Pharmaceutical Sciences, Melbourne, Victoria, Australia
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17
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Dring KJ, Cooper SB, Morris JG, Sunderland C, Foulds GA, Pockley AG, Nevill ME. Cytokine, glycemic, and insulinemic responses to an acute bout of games-based activity in adolescents. Scand J Med Sci Sports 2019; 29:597-605. [PMID: 30580469 PMCID: PMC6849858 DOI: 10.1111/sms.13378] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Revised: 07/17/2018] [Accepted: 12/17/2018] [Indexed: 12/19/2022]
Abstract
An acute bout of endurance exercise in adults stimulates a same‐day anti‐inflammatory response which may affect low‐grade chronic inflammation and insulin resistance and benefit cardio‐metabolic health. The anti‐inflammatory responses to intermittent games‐based exercise and to exercise in young people beyond 2 hours post‐exercise are unknown. Thus, the purpose of the present study is to examine the anti‐inflammatory, glycemic and insulinemic response to games‐based activity in adolescents. Following ethical approval and familiarization, 39 adolescents (12.3 ± 0.7 years) completed an exercise (E) and rested (R) trial in a counterbalanced, randomized crossover design. Following a standardized breakfast, participants completed 1‐hour games‐based activity. Capillary blood samples were taken at baseline, immediately and 1 hour post‐exercise, and 30, 60 and 120 minutes following a standardized lunch. A final blood sample was taken the next morning. Data were analyzed using repeated measures ANOVA. IL‐6 concentration was higher on day one of the exercise trial (E:3.4 ± 0.4, R:2.7 ± 0.4 pg/mL; P = 0.006), as was the anti‐inflammatory IL‐6:TNF‐α ratio (E:5.53 ± 0.93, R:3.75 ± 0.45; P = 0.027). Levels of the anti‐inflammatory cytokine IL‐10 increased on day two of the exercise trial (E:2.11 ± 0.23, R:1.66 ± 0.16 pg/mL; P = 0.032). Insulin sensitivity was enhanced on the exercise trial with a reduction in iAUC following the standardized lunch (E:2310 ± 834, R:3122 ± 1443 mU/L × 120 minutes; P < 0.001). Games‐based activity stimulated an anti‐inflammatory response up to 24 hours post‐exercise and improved insulin sensitivity in response to a standardized meal in healthy adolescents. These novel findings suggest that games‐based activity is an ecologically valid mode of exercise to elicit beneficial effects on cardio‐metabolic risk factors in young people.
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Affiliation(s)
- Karah J Dring
- Department of Sport Science, Sport Health and Performance Enhancement (SHAPE) Research Centre, School of Science and Technology, Nottingham Trent University, Nottingham, UK
| | - Simon B Cooper
- Department of Sport Science, Sport Health and Performance Enhancement (SHAPE) Research Centre, School of Science and Technology, Nottingham Trent University, Nottingham, UK
| | - John G Morris
- Department of Sport Science, Sport Health and Performance Enhancement (SHAPE) Research Centre, School of Science and Technology, Nottingham Trent University, Nottingham, UK
| | - Caroline Sunderland
- Department of Sport Science, Sport Health and Performance Enhancement (SHAPE) Research Centre, School of Science and Technology, Nottingham Trent University, Nottingham, UK
| | - Gemma A Foulds
- John van Geest Cancer Research Centre, School of Science and Technology, Nottingham Trent University, Nottingham, UK
| | - A Graham Pockley
- John van Geest Cancer Research Centre, School of Science and Technology, Nottingham Trent University, Nottingham, UK
| | - Mary E Nevill
- Department of Sport Science, Sport Health and Performance Enhancement (SHAPE) Research Centre, School of Science and Technology, Nottingham Trent University, Nottingham, UK
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18
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Zaher S, White D, Ridout J, Valla F, Branco R, Meyer R, Pathan N. Association between enteral macronutrient delivery and inflammatory response in critically ill children. Clin Nutr 2018; 38:2287-2296. [PMID: 30352749 DOI: 10.1016/j.clnu.2018.10.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Revised: 09/17/2018] [Accepted: 10/02/2018] [Indexed: 12/31/2022]
Abstract
BACKGROUND AND AIMS An important goal of nutrition support in paediatric critical illness is minimising catabolism. While focussing on providing full energy requirements, macronutrient balance is often neglected. Studies suggest that there is interplay between nutrition and inflammation. We aimed to assess the amount of enteral macronutrients delivered compared to estimated requirements, and the association between delivered macronutrients and systemic inflammation in critically ill children. METHOD We prospectively evaluated energy and macronutrient intake in critically ill children who required at least 72 h of mechanical ventilation. Data on enteral energy and macronutrient intake was collected and expressed as a percentage of the estimated requirements. Circulating levels of inflammatory cytokines were measured by ELISA and association assessed with delivery of macronutrients from the previous 24 h. RESULTS A total of 87 children (0-16 years) were included in this study. By day 3 the median (IQR) intake of energy, fat, carbohydrate (CHO) and protein were 75% (50-103), 85% (43-120), 63% (42-102) and 45% (23-65) respectively. We have also shown that delivery of enteral fat and protein was associated with elevation in the levels of tumour necrosis factor alpha (TNF-α) and interleukin-6 (IL-6). CONCLUSION The inflammatory response in critically ill children is influenced by the amount of enteral fat and protein delivered. Our data suggests that within the feed delivered, fat is often higher than protein and CHO. It is crucial to take into account the proportion of macronutrients required and not only aim to achieve the energy goal.
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Affiliation(s)
- Sara Zaher
- Department of Paediatrics, University of Cambridge, Hills Road, Cambridge, CB2 0QQ, UK; Clinical Nutrition Department, Faculty of Applied Medical Sciences, Taibah University, Saudi Arabia.
| | - Deborah White
- Cambridge University Hospitals NHS Foundation Trust, Hills Road, Cambridge, CB2 0QQ, UK
| | - Jenna Ridout
- Cambridge University Hospitals NHS Foundation Trust, Hills Road, Cambridge, CB2 0QQ, UK
| | - Frederic Valla
- Hospices Civils de Lyon, Paediatric Intensive Care, Hôpital Femme Mère Enfant, 59 bd Pinel, Lyon-Bron, FR 69500, France
| | - Ricardo Branco
- Department of Paediatrics, University of Cambridge, Hills Road, Cambridge, CB2 0QQ, UK; Cambridge University Hospitals NHS Foundation Trust, Hills Road, Cambridge, CB2 0QQ, UK
| | - Rosan Meyer
- Imperial College London, Kensington, London, SW7 2AZ, UK
| | - Nazima Pathan
- Department of Paediatrics, University of Cambridge, Hills Road, Cambridge, CB2 0QQ, UK; Cambridge University Hospitals NHS Foundation Trust, Hills Road, Cambridge, CB2 0QQ, UK
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Cytokines Genotype-Phenotype Correlation in Nonalcoholic Steatohepatitis. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2017; 2017:4297206. [PMID: 28852433 PMCID: PMC5568617 DOI: 10.1155/2017/4297206] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Accepted: 07/09/2017] [Indexed: 12/17/2022]
Abstract
NASH consists in lipid accumulation in hepatocytes that trigger oxidative stress, secretion of proinflammatory cytokines leading to steatohepatitis (NASH). The study aimed to investigate the levels of proinflammatory (TNF-α and IL-6) along with anti-inflammatory cytokine IL-10 in patients with NASH and to correlate the cytokines' level with their polymorphism. Sixty-six patients with NASH and 30 healthy volunteers were included in the study. The plasmatic level of IL-6, IL-10, and TNF-α were determined by ELISA. IL-10 -1082 G/A, IL-6 -174 G/C, and TNF-α -308 G/A polymorphisms were determined using the PCR-RFLP technique. IL-6, TNF-α, and CRP levels were significantly higher in patients with NASH. There was a positive correlation between proinflammatory cytokines and a negative correlation between IL-10 and proinflammatory markers. The G allele and GG genotype of IL-6 -174 G/C polymorphism were more frequently noticed in NASH patients. Regarding IL-10 -1082 G/A polymorphism, the AA genotype was correlated with NASH and with a low plasmatic level of IL-10. The A allele in position 308 of the TNF-α gene was associated with high level of cytokine. In conclusion, there was an imbalance between pro- and anti-inflammatory cytokines in NASH patients. IL-10 -1082 G/A and TNF-α -308 G/A genotypes were correlated with the plasmatic levels of cytokines.
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Madeshiya AK, Singh S, Dwivedi S, Konwar R, Natu SM, Ghatak A. Association of IL-10 gene (-1082A>G, -819C>T and -592C>A) polymorphism and its serum level with metabolic syndrome of north Indian subjects. J Genet 2017; 96:53-64. [PMID: 28360390 DOI: 10.1007/s12041-016-0738-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Metabolic syndrome (MetS) is an inflammatory disorder, in which various cytokines play important role in tilting balance towards disease state. Interleukin-10 (IL-10) is an important antiinflammatory cytokine, but its genetic polymorphisms and serum levels in Indian MetS subjects are unknown. Three IL-10 gene polymorphisms (-1082A>G (rs1800896), -819C>T (rs1800872) and -592C>A (rs1800871)) were genotyped with PCR-RFLP in MetS subjects (n = 384) and age/sex matched control subjects (n = 386). Serum IL-10 was measured using enzyme-linked immunosorbent assay. Serum IL-10 level was significantly low in MetS subject and significantly correlated with clinicobiochemical parameters of MetS. Of three investigated promoter polymorphisms, IL-10 -819C> T and -592C>A were significantly associated with risk of MetS. The mutant alleles -819T and -592A of IL-10 gene polymorphism were significantly higher in MetS subjects compared to controls. Of the four different haplotypes obtained, common ACC haplotype and rare GTA haplotype of IL-10 polymorphisms were associated with MetS. The mean of fasting insulin and HOMA-IR were significantly different between the genotypes of both -819 C>T and -592C>A polymorphisms of IL-10 in MetS subjects. These results suggested that polymorphisms in IL-10 gene (-819C>T and -592C>A), haplotypes (ACC and GTA) and serum level are significantly associated with risk of MetS. IL- 10 -819C>T and -592C>A polymorphic variants are also significantly associated with insulin level and homeostasis model assessment-insulin resistance in north Indian MetS subjects.
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Affiliation(s)
- Amit Kumar Madeshiya
- Department of Physiology, King George's Medical University, Lucknow 226 003, India.
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Dragović G, Dimitrijević B, Khawla AM, Soldatović I, Andjić M, Jevtović D, Nair D. Lower levels of IL-4 and IL-10 influence lipodystrophy in HIV/AIDS patients under antiretroviral therapy. Exp Mol Pathol 2017; 102:210-214. [PMID: 28189545 DOI: 10.1016/j.yexmp.2017.02.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2017] [Revised: 02/04/2017] [Accepted: 02/07/2017] [Indexed: 10/20/2022]
Abstract
BACKGROUND The role of interleukins in the pathogenesis of lipodystrophy in HIV/AIDS-patients is still not understood. The aim of this study was to evaluate the relationship between serum levels of interleukins between HIV/AIDS-patients with or without lipodystrophy, as well as between different subgroups of lipodystrophy (lipoatrophy, lipohypertrophy, mixed-fat-redistribution) and patients without lipodystrophy. METHODS Cross-sectional study of 66 HIV/AIDS patients, all Caucasians. Serum levels of interleukins (IL-1α, IL-1β, IL-2, IL-4, IL-6, IL-8, IL-10) were measured using Cytokine-Array-1 on Evidence Investigator, Biochip Array Technology. The associations between interleukins and anthropometric and metabolic variables were estimated by Spearman-correlation. Analysis of covariance with bootstrapping method (ACBM) was used to examine relationship between interleukins and lipodystrophy categories adjusted for confounding variables. RESULTS The lipodystrophy was observed in 29 (44%) patients, while 15 (52%) had lipoatrophy, 4 (14%) lipohypertrophy and 10 (34%) patients had mixed fat redistribution. There were 37 (56%) patients without lipodystrophy. Significantly lower levels of IL-4 and IL-10 were observed in lipodystrophy vs. non-lipodystrophy (p=0.008; p=0.027, respectively). No differences were found relating IL-1α, IL-1β, IL-2, IL-6 and IL-8 levels in lipodystrophy vs. non-lipodystrophy. In patient subgroup with lipoatrophy, significantly lower levels of IL-4 and IL-10 were found when compared to non-lipodystrophy (p=0.043; p=0.031, respectively). In lipohypertrophy subgroup significantly lower levels of IL-4 were found when compared to non-lipodystrophy (p=0.003). In order to estimate the correlation of IL-4 and IL-10 and the presence of lipodystrophy, ACBM showed that correlation of IL-4 levels in patients with lipodystrophy remains statistically significant (p=0.004) in all types of lipodystrophy: lipoatrophy, lipohypertrophy and mix-fat-redistribution (p=0.027; p=0.009; p=0.017, respectively) after adjustment for age, BMI. CONCLUSIONS IL-4 and IL-10 levels were significantly lower in lipodystrophy vs. non-lipodystrophy. According to our knowledge, we showed for the first time significant correlation between IL-4 levels and lipodystrophy development in HIV/AIDS patients.
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Affiliation(s)
- Gordana Dragović
- Department of Pharmacology, Clinical Pharmacology and Toxicology, School of Medicine, University of Belgrade, Belgrade, Serbia.
| | - Božana Dimitrijević
- Department of Pharmacology, Clinical Pharmacology and Toxicology, School of Medicine, University of Belgrade, Belgrade, Serbia
| | - Al Musalhi Khawla
- Department of Clinical Biochemistry, Royal Free Hospital, London, United Kingdom; University College London, London, United Kingdom
| | - Ivan Soldatović
- Institute for Biomedical Statistics, School of Medicine, University of Belgrade, Belgrade, Serbia
| | - Mladen Andjić
- Department of Pharmacology, Clinical Pharmacology and Toxicology, School of Medicine, University of Belgrade, Belgrade, Serbia
| | - Djordje Jevtović
- Infectious and Tropical Diseases Hospital, School of Medicine, University of Belgrade, Belgrade, Serbia
| | - Devaki Nair
- Department of Clinical Biochemistry, Royal Free Hospital, London, United Kingdom; University College London, London, United Kingdom
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Abstract
INTRODUCTION The increasing prevalence of hyperglycaemia implicates a state of oxidative stress and inflammation. Traditional and emerging biomarkers associated with increasing hyperglycaemia were assessed to clarify their role they play in hyperglycaemia. RESULTS 309 participants attending a rural diabetic screening program were categorised into control and quintile groups based upon glucose levels: 1st quintile - <4.5 mmol/L and 4th, 5th quintile - >6.1 mmol/L. Significant results were obtained for anthropometric data and biochemical markers - glucose, HbA1c and total cholesterol (P < 0.001); oxidative stress: glutathione (P < 0.001), glutathione:glutathione disulfide and 8-hydroxy-2-deoxyguanosine (P < 0.05). Interleukin -1β and inflammatory marker ratios IL-6/IL-10, IL-1β/IL-10, MCP-1/IL-10, IGF-1/IL-10 and IL-6/IL-1β were significant (P < 0.05). CONCLUSION This study provided further evidence that inflammatory and oxidative stress biomarkers may contribute to diagnostic information associated with preclinical increases in BGL. Further we have provided a unique study in the analysis of ratios of inflammatory biomarkers and correlations with increasing BGL.
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Affiliation(s)
- Eugene G Butkowski
- a School of Community Health , Charles Sturt University , Albury , Australia
| | - Herbert F Jelinek
- a School of Community Health , Charles Sturt University , Albury , Australia.,b School of Medicine , University of New South Wales , Sydney , Australia.,c Faculty of Medicine and Health Sciences , Macquarie University , Sydney , Australia
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Liaw JJ, Peplow PV. Effects of Electroacupuncture on Pro-/Anti-inflammatory Adipokines in Serum and Adipose Tissue in Lean and Diet-induced Obese Rats. J Acupunct Meridian Stud 2016; 9:65-72. [DOI: 10.1016/j.jams.2015.06.011] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2015] [Revised: 06/11/2015] [Accepted: 06/19/2015] [Indexed: 01/20/2023] Open
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Harnish CR, Sabo RT. Comparison of Two Different Sprint Interval Training Work-to-Rest Ratios on Acute Inflammatory Responses. SPORTS MEDICINE-OPEN 2016; 2:20. [PMID: 27034919 PMCID: PMC4773496 DOI: 10.1186/s40798-016-0044-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/04/2015] [Accepted: 02/22/2016] [Indexed: 01/03/2023]
Abstract
Background The study aims to compare how work-to-rest ratio (W:R) influences insulin sensitivity (Si) and inflammatory responses following one session of sprint interval training (SIT). Methods Thirteen men and two women completed a cross-over comparison of two SIT interventions—Tabata (TAB), 10 × 20-s sprints/10-s rest, and Wingate (WIN), 5 × 30-s sprints with 270-s rest. IL-6, IL-10, and TNF-α were assessed at baseline, immediately following, and 1 h after SIT, as well as prior to the 24-h post-exercise oral glucose tolerance tests (OGTTs). Results Participants were 23.8 (±3.5) years old and 180.0 (±10.2) cm tall, weighed 78.5 (13.0) kg, and had 16.9 (±6.5) % body fat, with a mean VO2Peak of 42.0 (±7.9) ml kg−1 min−1. There were no differences in total work (kJ) between TAB (64.7 ± 12.0) and WIN (68.0 ± 15.0). Mean (±95 % CI) Si 24 h changed −2.8 (−5.1, −0.5) from baseline after TAB and −3.9 (−6.9, −0.9) after WIN. Cytokines were measured in pg ml−1 and expressed as mean change (±95 % CI). IL-6 increased significantly immediately following SIT for TAB 0.70 (0.23, 1.17), and WIN 1.11 (0.60, 1.62), and remained elevated 1 h post SIT for TAB 1.10 (0.37, 1.83), and WIN 0.95 (0.26, 1.65). IL-10 showed a significant positive change immediately following exercise for TAB 1.53 (0.77, 2.29) and WIN 1.59 (0.58, 2.59). TNF-α also increased immediately both TAB 3.26 (1.57, 4.96) and WIN 3.05 (0.56, 5.54) and was directly proportional to IL-10 (r = 0.64, p < 0.0001). Conclusions W:R did not alter either the inflammatory or metabolic response following SIT nor does SIT improve 24-h Si, despite increased levels of IL-10.
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Affiliation(s)
| | - Roy T Sabo
- Department of Biostatistics, Virginia Commonwealth University, Richmond, VA 23298 USA
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Lachmandas E, van den Heuvel CNAM, Damen MSMA, Cleophas MCP, Netea MG, van Crevel R. Diabetes Mellitus and Increased Tuberculosis Susceptibility: The Role of Short-Chain Fatty Acids. J Diabetes Res 2016; 2016:6014631. [PMID: 27057552 PMCID: PMC4709651 DOI: 10.1155/2016/6014631] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Accepted: 10/18/2015] [Indexed: 02/07/2023] Open
Abstract
Type 2 diabetes mellitus confers a threefold increased risk for tuberculosis, but the underlying immunological mechanisms are still largely unknown. Possible mediators of this increased susceptibility are short-chain fatty acids, levels of which have been shown to be altered in individuals with diabetes. We examined the influence of physiological concentrations of butyrate on cytokine responses to Mycobacterium tuberculosis (Mtb) in human peripheral blood mononuclear cells (PBMCs). Butyrate decreased Mtb-induced proinflammatory cytokine responses, while it increased production of IL-10. This anti-inflammatory effect was independent of butyrate's well-characterised inhibition of HDAC activity and was not accompanied by changes in Toll-like receptor signalling pathways, the eicosanoid pathway, or cellular metabolism. In contrast blocking IL-10 activity reversed the effects of butyrate on Mtb-induced inflammation. Alteration of the gut microbiota, thereby increasing butyrate concentrations, can reduce insulin resistance and obesity, but further studies are needed to determine how this affects susceptibility to tuberculosis.
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Affiliation(s)
- Ekta Lachmandas
- Department of Internal Medicine and Radboudumc Center for Infectious Diseases, Radboud University Medical Center, Internal Postal Code 463, P.O. Box 9101, 6500 HB Nijmegen, Netherlands
- *Ekta Lachmandas:
| | - Corina N. A. M. van den Heuvel
- Department of Internal Medicine and Radboudumc Center for Infectious Diseases, Radboud University Medical Center, Internal Postal Code 463, P.O. Box 9101, 6500 HB Nijmegen, Netherlands
| | - Michelle S. M. A. Damen
- Department of Internal Medicine and Radboudumc Center for Infectious Diseases, Radboud University Medical Center, Internal Postal Code 463, P.O. Box 9101, 6500 HB Nijmegen, Netherlands
| | - Maartje C. P. Cleophas
- Department of Internal Medicine and Radboudumc Center for Infectious Diseases, Radboud University Medical Center, Internal Postal Code 463, P.O. Box 9101, 6500 HB Nijmegen, Netherlands
| | - Mihai G. Netea
- Department of Internal Medicine and Radboudumc Center for Infectious Diseases, Radboud University Medical Center, Internal Postal Code 463, P.O. Box 9101, 6500 HB Nijmegen, Netherlands
| | - Reinout van Crevel
- Department of Internal Medicine and Radboudumc Center for Infectious Diseases, Radboud University Medical Center, Internal Postal Code 463, P.O. Box 9101, 6500 HB Nijmegen, Netherlands
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Anti-Obesity Effect of the CB2 Receptor Agonist JWH-015 in Diet-Induced Obese Mice. PLoS One 2015; 10:e0140592. [PMID: 26588700 PMCID: PMC4654496 DOI: 10.1371/journal.pone.0140592] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2013] [Accepted: 09/27/2015] [Indexed: 01/24/2023] Open
Abstract
The cannabinoid receptor 2 (CB2) is well known for its immune modulatory role. However, recent localisation of CB2 receptors in metabolically active tissue suggests that the CB2 receptor plays a significant role in energy homeostasis. This study was designed to investigate the impact of chronic CB2 receptor stimulation on food intake, body weight and mood. Lean male C57BL/6 mice were injected i.p. with the selective CB2 receptor agonist, JWH-015 (0.0, 1.0, 5.0 and 10.0 mg kg-1) to establish dose response parameters. Mice made obese following exposure to a diet consisting of 19.4 MJ/kg (4641 Kcal/kg) of energy (19.0% protein, 21.0% total fat, 4.7% crude fiber, and 4.7% AD fiber were given either vehicle or 10 mg/kg JWH-015. Impact on mood, food intake, body weight, plasma metabolites, expression of key metabolic proteins in the brown adipose tissue (BAT) and white adipose tissue (WAT), and markers of inflammation were measured. High dose (10 mg/kg) JWH-015 reduced food intake after 1, 2, 4, and 24 h in lean mice. When given to diet induced obese (DIO) mice, a 10 mg/kg dose of JWH-015 significantly reduced body weight compared to vehicle. This dose led to a shift in markers of lipid metabolism and inflammation in WAT consistent with lipolysis and improved immune response. Furthermore, JWH-015 (10 mg/kg) produced a transient reduction in food intake and significant reduction in fat mass and adipocyte cell size. Importantly, JWH-015 produced an anxiolytic response in the elevated plus maze while having no effect on immobility time in the forced swim test. It should be noted that though the 10 mg/kg dose produced positive effects on the obese state, the possibility that these effects are mediated via non-CB2 receptor mechanisms cannot be ruled out. These results demonstrate a role for CB2 receptors in modulating energy homeostasis and obesity associated metabolic pathologies in the absence of any adverse impact on mood.
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Acharya AB, Thakur S, Muddapur MV. Evaluation of serum interleukin-10 levels as a predictor of glycemic alteration in chronic periodontitis and type 2 diabetes mellitus. J Indian Soc Periodontol 2015; 19:388-92. [PMID: 26392685 PMCID: PMC4555794 DOI: 10.4103/0972-124x.150876] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2014] [Accepted: 12/24/2014] [Indexed: 12/13/2022] Open
Abstract
Aim: Chronic periodontal disease (CPD) and type 2 diabetes mellitus (T2DM) share common pathogenic pathways. This study aimed to estimate levels of serum interleukin (IL-10), an anti-inflammatory cytokine also associated with T2DM and evaluate its association with hyperglycemia. Materials and Methods: This investigation involved sixty participants divided into four groups comprising 15 participants each: Group 1 (healthy controls), Group 2 (CPD patients), Group 3 (T2DM patients with CPD) and Group 4 (T2DM patients). Plaque index, gingival index, probing pocket depths (PPD), clinical attachment loss, bleeding on probing, random blood sugar, glycosylated hemoglobin (HbA1c), and serum IL-10 was measured. Results: Interleukin-10 was detected in all four groups. Statistically significant (P < 0.05) differences were observed in most of the variables in all groups. IL-10 correlated significantly with PPD in Group 1 and with HbA1c in Group 4. IL-10 regressed with PPD in Group 1 and with HbA1c in Group 4. IL-10 levels were lower in Group 3 when compared with Group 4 and was lowest in Group 2. Conclusion: Low IL-10 levels associated with high HbA1c. Pathogenic mechanisms of CPD seem to regulate IL-10. Serum IL-10 levels may be one of the predictors of glycemia.
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Affiliation(s)
| | - Srinath Thakur
- Department of Periodontics, S.D.M. College of Dental Sciences and Hospital, Dharwad, Karnataka, India
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Moreli JB, Corrêa-Silva S, Damasceno DC, Sinzato YK, Lorenzon-Ojea AR, Borbely AU, Rudge MVC, Bevilacqua E, Calderon IMP. Changes in the TNF-alpha/IL-10 ratio in hyperglycemia-associated pregnancies. Diabetes Res Clin Pract 2015; 107:362-9. [PMID: 25648390 DOI: 10.1016/j.diabres.2015.01.005] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2014] [Revised: 11/19/2014] [Accepted: 01/03/2015] [Indexed: 11/30/2022]
Abstract
AIMS TNF-α is a diabetogenic cytokine associated with adverse outcomes during pregnancy that can be counterbalanced by IL-10. We have investigated IL-10 and TNF-α balance at maternal and placental levels in hyperglycemia-associated pregnancies. METHODS One hundred and ninety-two pregnant women participated, which included normoglycemic women (ND) and women with mild gestational hyperglycemia (MGH), gestational diabetes mellitus (GDM) and type 2 diabetes mellitus (DM2). Maternal plasma and placental tissue IL-10 and TNF-α levels were measured by ELISA and placental TNF-α was also immunolocalized. RESULTS Maternal plasma TNF-α levels were highest in GDM (p=0.0190), whereas TNF-α levels were highest in placental tissues in DM2 (p=0.0095). Immunohistochemistry also showed strong reactivity with anti-TNF-α antibody in the villous structures in the DM2 group. Conversely, IL-10 levels were lowest in maternal plasma of the DM2 group (p=0.0228). The TNF-α/IL-10 ratio in maternal plasma progressively increased with the severity of hyperglycemia (p<0.0001), being highest in placenta of the DM2 group (p=0.0150). In both, plasma and placenta, TNF-α/IL-10 ratio were correlated with mean maternal glycemia and HbA1c levels. CONCLUSIONS Alterations of placenta and serum TNF-α/IL-10 balance with predominance of TNF-α were correlated with the severity of hyperglycemia during gestation. This association may offer insight into the pathogenesis of gestational hyperglycemia and associated pregnancy outcomes.
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Affiliation(s)
- Jusciele B Moreli
- Post-graduate Program in Gynecology, Obstetrics and Mastology, Botucatu Medical School, São Paulo State University, São Paulo, Brazil.
| | - Simone Corrêa-Silva
- Post-graduate Program in Gynecology, Obstetrics and Mastology, Botucatu Medical School, São Paulo State University, São Paulo, Brazil; Department of Cell and Developmental Biology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Débora C Damasceno
- Post-graduate Program in Gynecology, Obstetrics and Mastology, Botucatu Medical School, São Paulo State University, São Paulo, Brazil
| | - Yuri K Sinzato
- Post-graduate Program in Gynecology, Obstetrics and Mastology, Botucatu Medical School, São Paulo State University, São Paulo, Brazil
| | - Aline R Lorenzon-Ojea
- Department of Cell and Developmental Biology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Alexandre U Borbely
- Department of Cell and Developmental Biology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Marilza V C Rudge
- Post-graduate Program in Gynecology, Obstetrics and Mastology, Botucatu Medical School, São Paulo State University, São Paulo, Brazil
| | - Estela Bevilacqua
- Department of Cell and Developmental Biology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Iracema M P Calderon
- Post-graduate Program in Gynecology, Obstetrics and Mastology, Botucatu Medical School, São Paulo State University, São Paulo, Brazil.
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Nehete P, Magden ER, Nehete B, Hanley PW, Abee CR. Obesity related alterations in plasma cytokines and metabolic hormones in chimpanzees. Int J Inflam 2014; 2014:856749. [PMID: 25309773 PMCID: PMC4182846 DOI: 10.1155/2014/856749] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2014] [Accepted: 08/19/2014] [Indexed: 01/04/2023] Open
Abstract
Obesity is characterized by chronic low-grade inflammation and serves as a major risk factor for hypertension, coronary artery disease, dyslipidemias, and type-2 diabetes. The purpose of this study was to examine changes in metabolic hormones, inflammatory cytokines, and immune function, in lean, overweight, and obese chimpanzees in a controlled environment. We observed increased plasma circulating levels of proinflammatory TH-1 cytokines, Interferon gamma, interleukin-6, interleukin-12p40, tumor necrosis factor, soluble CD40 ligand, and Interleukin-1β and anti-inflammatory TH-2 cytokines, Interleukin-4, Interleukin-RA, Interleukin-10, and Interleukin-13 in overweight and obese chimpanzees. We also observed increased levels of metabolic hormones glucagon-like-peptide-1, glucagon, connecting peptide, insulin, pancreatic peptide YY3-36, and leptin in the plasma of overweight and obese chimpanzees. Chemokine, eotaxin, fractalkine, and monocyte chemoattractant protein-1 were higher in lean compared to obese chimpanzees, while chemokine ligand 8 increased in plasma of obese chimpanzees. We also observed an obesity-related effect on immune function as demonstrated by lower mitogen induced proliferation, and natural killer activity and higher production of IFN-γ by PBMC in Elispot assay, These findings suggest that lean, overweight, and obese chimpanzees share circulating inflammatory cytokines and metabolic hormone levels with humans and that chimpanzees can serve as a useful animal model for human studies.
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Affiliation(s)
- Pramod Nehete
- Department of Veterinary Sciences, The University of Texas MD Anderson Cancer Center, Bastrop, TX 78602, USA
| | - Elizabeth R. Magden
- Department of Veterinary Sciences, The University of Texas MD Anderson Cancer Center, Bastrop, TX 78602, USA
| | - Bharti Nehete
- Department of Veterinary Sciences, The University of Texas MD Anderson Cancer Center, Bastrop, TX 78602, USA
| | - Patrick W. Hanley
- Department of Veterinary Sciences, The University of Texas MD Anderson Cancer Center, Bastrop, TX 78602, USA
| | - Christian R. Abee
- Department of Veterinary Sciences, The University of Texas MD Anderson Cancer Center, Bastrop, TX 78602, USA
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Insight into the impact of diabetes mellitus on the increased risk of hepatocellular carcinoma: mini-review. J Diabetes Metab Disord 2014; 13:57. [PMID: 24918094 PMCID: PMC4050993 DOI: 10.1186/2251-6581-13-57] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2013] [Accepted: 05/02/2014] [Indexed: 02/07/2023]
Abstract
Hepatocellular carcinoma is a multifactorial disease which is associated with a background of many causal risk factors. Diabetes mellitus however is one of the most common co-morbid illnesses found in hepatocellular carcinoma patients that are significantly associated with worsening of hepatocellular carcinoma development, patient prognosis and survival. Therefore, efforts have been focused on understanding the mechanisms underlying progression of hepatocellular carcinoma onset and development especially in diabetic patients. To our knowledge, there are no reports which address the impact of tumor necrosis factor alpha (TNF-α) and interleukin-6 (IL-6) along with epigenetic regulations associated with increased risk of hepatocellular carcinoma confounded by diabetes mellitus. Therefore, this mini-review focuses on the possible intermediary mechanisms involved in worsening the onset and progression of hepatocellular carcinoma development confounded by diabetes mellitus. The first approach is to look at the role of inflammatory mediators (TNF-α and IL-6) in apoptosis and inflammation during hepatocarcinogenesis through monitoring levels of apoptotic regulators, B-cell lymphoma 2 protein which is encoded by BCL2 gene and apoptosis regulator BAX known as bcl-2-like protein 4 which is encoded by the BAX gene. The second approach is to focus on the possible epigenomic reprogramming that drives hepatocellular transformation since epigenetic modification of DNA is a key feature in the pathogenesis of hepatocarcinogenesis. Both approaches may suggest role of using Bcl2 and Bax as apoptotic and inflammatory markers for hepatocellular carcinoma detection as well as the importance impact of DNA methylation, hypomethylation or histone modifications as attractive candidates for early-detection biomarkers of hepatocellular carcinoma.
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Yilmaz MI, Solak Y, Saglam M, Cayci T, Acikel C, Unal HU, Eyileten T, Oguz Y, Sari S, Carrero JJ, Stenvinkel P, Covic A, Kanbay M. The relationship between IL-10 levels and cardiovascular events in patients with CKD. Clin J Am Soc Nephrol 2014; 9:1207-16. [PMID: 24789549 DOI: 10.2215/cjn.08660813] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
BACKGROUND AND OBJECTIVES Cardiovascular disease is the leading cause of death in patients with CKD. IL-10 is considered an antiatherosclerotic cytokine. However, previous studies have failed to observe an association between IL-10 and cardiovascular disease in CKD. This study aimed to evaluate whether serum IL-10 levels were associated with the risk of cardiovascular events in CKD patients. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS Four hundred three patients with stages 1-5 CKD were followed for a mean of 38 (range=2-42) months for fatal and nonfatal cardiovascular events. IL-10 and IL-6 were measured at baseline together with surrogates of endothelial function (flow-mediated dilatation) and proinflammatory markers (high-sensitivity C-reactive protein and pentraxin-3). The association between IL-10 and flow-mediated dilatation through linear regression analyses was evaluated. The association between IL-10 and the risk of cardiovascular events was assessed with Cox regression analysis. RESULTS IL-10, IL-6, high-sensitivity C-reactive protein, and pentraxin-3 levels were higher among participants with lower eGFR. Both fatal (25 of 200 versus 6 of 203 patients) and combined fatal and nonfatal (106 of 200 versus 23 of 203 patients) cardiovascular events were more common in patients with IL-10 concentration above the median. Flow-mediated dilatation was significantly lower in patients with higher serum IL-10 levels, but IL-10 was not associated with flow-mediated dilatation in multivariate analysis. Kaplan-Meier survival curves showed that patients with IL-10 below the median value (<21.5 pg/ml) had higher cumulative survival compared with patients who had IL-10 levels above the median value (log-rank test, P<0.001). CONCLUSIONS IL-10 levels increase along with the reduction of kidney function. Higher serum IL-10 levels were associated with the risk of cardiovascular events during follow-up. We speculate that higher IL-10 levels in this context signify an overall proinflammatory milieu.
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Affiliation(s)
| | - Yalcin Solak
- Department of Medicine, Division of Nephrology, Karaman State Hospital, Karaman, Turkey
| | | | | | | | | | | | | | | | - Juan Jesus Carrero
- Department of Medicine, Division of Renal Medicine andCentres for Molecular Medicine and Gender Medicine, Karolinska Institute, Stockholm, Sweden
| | | | - Adrian Covic
- Nephrology Clinic, Dialysis and Renal Transplant Center, C.I. PARHON University Hospital and Grigore T. Popa University of Medicine, Iasi, Romania; and
| | - Mehmet Kanbay
- Department of Medicine, Division of Nephrology, İstanbul Medeniyet University School of Medicine, Istanbul, Turkey
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Gao X, Liu X, Xu J, Xue C, Xue Y, Wang Y. Dietary trimethylamine N-oxide exacerbates impaired glucose tolerance in mice fed a high fat diet. J Biosci Bioeng 2014; 118:476-81. [PMID: 24721123 DOI: 10.1016/j.jbiosc.2014.03.001] [Citation(s) in RCA: 231] [Impact Index Per Article: 23.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2013] [Revised: 01/19/2014] [Accepted: 03/02/2014] [Indexed: 12/13/2022]
Abstract
Trimethylamine N-oxide (TMAO) is an oxidation product of trimethylamine (TMA) and is present in many aquatic foods. Here, we investigated the effects of TMAO on glucose tolerance in high fat diet (HFD)-fed mice. Male C57BL/6 mice were randomly assigned to the control, high fat (HF), and TMAO groups. The HF group was fed a diet containing 25% fat, and the TMAO group was fed the HFD plus 0.2% TMAO for 4 weeks. After 3 weeks of feeding, oral glucose tolerance tests were performed. Dietary TMAO increased fasting insulin levels and homeostasis model assessment-estimated insulin resistance (HOMA-IR) and exacerbated the impaired glucose tolerance in HFD-fed mice. These effects were associated with the expression of genes related to the insulin signal pathway, glycogen synthesis, gluconeogenesis and glucose transport in liver. mRNA levels of the pro-inflammatory cytokine MCP-1 increased significantly and of the anti-inflammatory cytokine IL-10 greatly decreased in adipose tissue. Our results suggest that dietary TMAO exacerbates impaired glucose tolerance, obstructs the hepatic insulin signaling pathway, and causes adipose tissue inflammation in mice fed a high fat diet.
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Affiliation(s)
- Xiang Gao
- College of Food Science and Engineering, Ocean University of China, No. 5, Yu Shan Road, Qingdao, Shandong Province 266003, China
| | - Xiaofang Liu
- College of Food Science and Engineering, Ocean University of China, No. 5, Yu Shan Road, Qingdao, Shandong Province 266003, China
| | - Jie Xu
- College of Food Science and Engineering, Ocean University of China, No. 5, Yu Shan Road, Qingdao, Shandong Province 266003, China
| | - Changhu Xue
- College of Food Science and Engineering, Ocean University of China, No. 5, Yu Shan Road, Qingdao, Shandong Province 266003, China
| | - Yong Xue
- College of Food Science and Engineering, Ocean University of China, No. 5, Yu Shan Road, Qingdao, Shandong Province 266003, China
| | - Yuming Wang
- College of Food Science and Engineering, Ocean University of China, No. 5, Yu Shan Road, Qingdao, Shandong Province 266003, China.
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Chang JS, Bai CH, Huang ZC, Owaga E, Chao KC, Chang CC, Chiou HY. Interleukin 10 and clustering of metabolic syndrome components in pediatrics. Eur J Clin Invest 2014; 44:384-94. [PMID: 24467774 DOI: 10.1111/eci.12247] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2013] [Accepted: 01/23/2014] [Indexed: 01/29/2023]
Abstract
BACKGROUND Interleukin 10 (IL-10) has multifaceted anti-inflammatory properties that are known to regulate insulin sensitivity and atherosclerotic development. However, studies in children are limited and have yielded conflicting results. The aim of this study was to evaluate whether changes in this circulating anti-inflammatory cytokine is a marker for metabolic syndrome. MATERIALS AND METHODS This cross-sectional study involved children and young adolescents from eight elementary schools and two junior high schools located in Taipei and New Taipei City. A total of 553 children ages 8, 11 and 13 years old were included in the analysis. Parameters for obesity, anti- and pro-inflammatory cytokines, and metabolic risk profiles were evaluated. RESULTS Overweight/obese children had lower serum IL-10 concentrations compared with normal weight children in the same age group (all P < 0·001). IL-10 quartiles were negatively associated with body mass index (BMI) and percentage (%) body fat (all P < 0·05). Multivariate regression analysis showed significant inverse relationship between IL-10 concentrations and % body fat (β = -0·009, P < 0·0001), and total cholesterol (β = -0·726, P = 0·003), and a small positive correlation between IL-10 and systolic blood pressure (β = 0·980, P = 0·027). In normal weight children, IL-10 concentrations were independently associated with fasting plasma insulin (β = 0·2912, P = 0·001) and waist circumference (β = 0·0069, P = 0·022). By contrast, % body fat (β = -0·016, P = 0·0009) was independently associated with IL-10 concentrations in overweight and obese children. Association between IL-10 and fasting plasma insulin concentrations was weaker in overweight/obese children compared with normal weight (β = 0·283, P = 0·011 vs. β = 0·2912, P = 0·001). CONCLUSION Our data indicate that changes in circulating IL-10 concentrations are marker of metabolic risk in children.
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Affiliation(s)
- Jung-Su Chang
- School of Nutrition and Health Sciences, College of Public Health and Nutrition, Taipei Medical University, Taipei, Taiwan
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Chang JS, Chang CC, Chien E, Lin SSH, Cheng-Shiuan T, Bai CH, Chao KC. Association between interleukin 1β and interleukin 10 concentrations: a cross-sectional study in young adolescents in Taiwan. BMC Pediatr 2013; 13:123. [PMID: 23941335 PMCID: PMC3751513 DOI: 10.1186/1471-2431-13-123] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2013] [Accepted: 08/07/2013] [Indexed: 11/24/2022] Open
Abstract
Background In adults, low circulating interleukin 10 (IL10) has been associated with obesity and type 2 diabetes. However, studies investigating IL10 in overweight and obese children have yielded conflicting results. The aim of this study was to investigate factors associated with serum IL10 concentration in young Chinese adolescents. Methods Young adolescents (n=325) ages 13.33±1.10 years were recruited into the cross-sectional study from 2010 to 2011. Parameters of obesity, individual components of MetS, iron status and serum IL10 were evaluated. Results Compared with their normal weight counterparts, overweight adolescents had lower serum IL10 but higher TNFα, nitric oxide (NO) and IL1β concentrations (all p<0.05). Obese adolescents had increased IL1β but decreased hepcidin concentration compared with normal weight (p<0.01 and p<0.05; respectively). A strong inverse relationship (p<0.0001) was found between IL10 and pro-inflammatory cytokines (TNFα and IL1β). Multivariate linear regression analysis showed serum IL1β was significantly correlated with IL10 (β=−0.156, p<0.0001). When overweight and obese adolescents were assessed separately from normal weight, only IL1β was inversely associated with serum IL10 (β=−0.231, p=0.0009). The association between IL10 and IL1β was weaker in adolescents with normal weight (β=−0.157, p=0.0002), after adjusting for gender, TNFα, IFNγ and NO. Conclusions Our study confirmed that low IL10 concentration is associated with overweight and obesity in young adolescents. We also demonstrated for the first time that pro-inflammatory cytokine IL1β is independently associated with IL10. A decline in IL10 concentration in overweight and obese adolescents may further contribute to the IL1β-mediated inflammatory environment associated with obesity.
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Lopez R, Agullo P, Lakshmanaswamy R. Links between obesity, diabetes and ethnic disparities in breast cancer among Hispanic populations. Obes Rev 2013; 14:679-91. [PMID: 23611507 DOI: 10.1111/obr.12030] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2012] [Revised: 01/25/2013] [Accepted: 02/18/2013] [Indexed: 12/27/2022]
Abstract
Breast cancer is the most prevalent malignancy in women worldwide and is a growing concern due to rising incidence and ongoing ethnic disparities in both incidence and mortality. A number of factors likely contribute to these trends including rising rates of obesity and diabetes across the globe and differences in genetic predisposition. Here, we emphasize Hispanic populations and summarize what is currently known about obesity, diabetes and individual genetic predisposition as they relate to ethnic disparities in breast cancer incidence and mortality. In addition, we discuss potential contributions to breast cancer aetiology from molecular mechanisms associated with obesity and diabetes including dyslipidemia, hyperglycaemia, hyperinsulinaemia, endocrine dysfunction and inflammation. We propose that unique differences in diet and lifestyle coupled with individual genetic predisposition and endocrine/immune dysfunction explain most of the ethnic disparities seen in breast cancer incidence and mortality.
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Affiliation(s)
- R Lopez
- Center of Excellence in Cancer Research, Center of Excellence in Diabetes Research, Department of Biomedical Sciences MSB1, Texas Tech University Health Sciences Center, Paul L. Foster School of Medicine, El Paso, TX 79905, USA
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Sarvas JL, Khaper N, Lees SJ. The IL-6 Paradox: Context Dependent Interplay of SOCS3 and AMPK. ACTA ACUST UNITED AC 2013; Suppl 13. [PMID: 24244888 DOI: 10.4172/2155-6156.s13-003] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Insulin resistance is the principle step towards the progression of type 2 diabetes, and has been linked to increased circulating levels of cytokines, leading to chronic low-grade inflammation. Specifically, in chronic disease states increased IL-6 is thought to play a critical role in the regulation of insulin resistance in the peripheral tissues, and has been used as a marker of insulin resistance. There is also an endogenous up-regulation of IL-6 in response to exercise, which has been linked to improved insulin sensitivity. This leads to the question "how can elevated IL-6 lead to the development of insulin resistance, and yet also lead to increased insulin sensitivity?" Resolving the dual role of IL-6 in regulating insulin resistance/sensitivity is critical to the development of potential therapeutic interventions. This review summarizes the literature on the seemingly paradoxical role of elevated IL-6 on insulin signalling, including the activation of AMPK and the involvement of leptin and SOCS3.
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Gemfibrozil and its combination with metformin on pleiotropic effect on IL-10 and adiponectin and anti-atherogenic treatment in insulin resistant type 2 diabetes mellitus rats. Inflammopharmacology 2012; 21:137-45. [DOI: 10.1007/s10787-012-0154-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2012] [Accepted: 10/08/2012] [Indexed: 11/25/2022]
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Efficacy of Tumor Necrosis Factor and Interleukin-10 Analysis in the Follow-up of Nonalcoholic Fatty Liver Disease Progression. Indian J Clin Biochem 2012; 28:141-6. [PMID: 24426199 DOI: 10.1007/s12291-012-0236-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2012] [Accepted: 06/13/2012] [Indexed: 02/08/2023]
Abstract
Tumor necrosis factor (TNF-α) is a cytokine involved in systemic inflammation during acute phase reactions. The current study was designed to investigate the levels of pro-inflammatory cytokine (TNF-α) along with the anti-inflammatory cytokine (IL-10) during progression of non-alcoholic fatty liver disease (NAFLD) from simple steatosis to non-alcoholic steatohepatitis (NASH) and fibrosis in diabetic patients, and correlate the levels of cytokines with the progression of NAFLD. Fifty-two diabetic patients compared to 18 healthy controls were participated in this study. Based on clinical diagnosis, patients were divided into three groups: simple steatosis, NASH and fibrosis. Serum liver function tests, fasting blood glucose, bilirubin, ALT, AST, TNF-α, IL-10 and lipid profile were measured. TNF-α levels were significantly higher in NAFLD patients compared to control subjects with a significant positive correlation with body mass index and fasting blood glucose (FBG) but with negative correlation with IL-10. Serum IL-10 levels were significantly lower in NAFLD patients compared with controls. A positive correlation between IL-10 and HDL-C with concomitant negative correlation between IL-10 and FBG and triacylglycerides was found. Cytokine analyses showed that there was a prominent imbalance between TNF-α and IL-10 in patients with NAFLD, and this imbalance increase by increasing the progression of NAFLD especially in obese diabetic patients. TNF-α and IL-10 could be used in diagnosis and follow-up of NAFLD stages in a way to avoid liver biopsies in greater proportion of patients.
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Abstract
Metabolic syndrome is highly prevalent in vascular patients and has a significant impact on the outcomes of vascular interventions. It comprises of a set of metabolically driven risk factors, including truncal obesity, dyslipidemia, elevated blood pressure and elevated fasting blood glucose. Increased insulin resistance within the context of obesity and hypertension contributes to atherogenic dyslipidemia, hyperglycemia, and prothrombotic and proinflammatory states which lead to the adverse impact of metabolic syndrome on the response to injury and on atherosclerotic disease progression. This review focuses on the complex biology of metabolic syndrome and its relevance to management of vascular patients, including outcomes and implications for the coronary, cerebrovascular and lower-extremity vascular beds.
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Affiliation(s)
- Daynene Vykoukal
- Vascular Biology and Therapeutics Program, The Methodist Hospital Research Institute, Houston, TX 77030, USA
| | - Mark G Davies
- Vascular Biology and Therapeutics Program, The Methodist Hospital Research Institute, Houston, TX 77030, USA
- Department of Cardiovascular Surgery, Methodist DeBakey Heart & Vascular Center, The Methodist Hospital,Houston, TX 77030, USA
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Gabbay MAL, Sato MN, Duarte AJS, Dib SA. Serum titres of anti-glutamic acid decarboxylase-65 and anti-IA-2 autoantibodies are associated with different immunoregulatory milieu in newly diagnosed type 1 diabetes patients. Clin Exp Immunol 2012; 168:60-7. [PMID: 22385239 DOI: 10.1111/j.1365-2249.2011.04538.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
Several studies correlated genetic background and pancreatic islet-cell autoantibody status (type and number) in type 1A diabetes mellitus (T1AD), but there are no data evaluating the relationship among these markers with serum cytokines, regulatory T cells and β cell function. This characterization has a potential importance with regard to T1AD patients' stratification and follow-up in therapeutic prevention. In this study we showed that peripheral sera cytokines [interleukin (IL)-12, IL-6, II-1β, tumour necrosis factor (TNF)-α, IL-10] and chemokines (CXCL10, CXCL8, CXCL9, CCL2) measured were significantly higher in newly diagnosed T1AD patients when compared to healthy controls (P < 0·001). Among T1AD, we found a positive correlation between CXCL10 and CCL-2 (r = 0·80; P = 0·000), IL-8 and TNF-α (r = 0·60; P = 0·000); IL-8 and IL-12 (r = 0·57; P = 0·001) and TNF-α and IL-12 (r = 0·93; P = 0·000). Glutamic acid decarboxylase-65 (GAD-65) autoantibodies (GADA) were associated negatively with CXCL10 (r = -0·45; P = 0·011) and CCL2 (r = -0·65; P = 0·000), while IA-2A showed a negative correlation with IL-10 (r = -0·38; P = 0·027). Human leucocyte antigen (HLA) DR3, DR4 or DR3/DR4 and PTPN22 polymorphism did not show any association with pancreatic islet cell antibodies or cytokines studied. In summary, our results revealed that T1AD have a proinflammatory cytokine profile compared to healthy controls and that IA-2A sera titres seem to be associated with a more inflammatory peripheral cytokine/chemokine profile than GADA. A confirmation of these data in the pre-T1AD phase could help to explain the mechanistic of the well-known role of IA-2A as a more specific marker of beta-cell damage than GADA during the natural history of T1AD.
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Affiliation(s)
- M Andrade Lima Gabbay
- Diabetes Center, Endocrinology Division, Department of Medicine, Federal University of São Paulo-Immunology Laboratory, Rua Pedro de Toledo 781/12, São Paulo, SP, Brazil.
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Everard A, Geurts L, Van Roye M, Delzenne NM, Cani PD. Tetrahydro iso-alpha acids from hops improve glucose homeostasis and reduce body weight gain and metabolic endotoxemia in high-fat diet-fed mice. PLoS One 2012; 7:e33858. [PMID: 22470484 PMCID: PMC3314685 DOI: 10.1371/journal.pone.0033858] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2011] [Accepted: 02/22/2012] [Indexed: 12/03/2022] Open
Abstract
Obesity and related metabolic disorders such as insulin resistance and type 2 diabetes are associated with a low-grade inflammatory state possibly through changes in gut microbiota composition and the development of higher plasma lipopolysaccharide (LPS) levels, i.e. metabolic endotoxemia. Various phytochemical compounds have been investigated as potential tools to regulate these metabolic features. Humulus lupulus L. (hops) contains several classes of compounds with anti-inflammatory potential. Recent evidence suggests that hops-derived compounds positively impact adipocyte metabolism and glucose tolerance in obese and diabetic rodents via undefined mechanisms. In this study, we found that administration of tetrahydro iso-alpha acids (termed META060) to high-fat diet (HFD)-fed obese and diabetic mice for 8 weeks reduced body weight gain, the development of fat mass, glucose intolerance, and fasted hyperinsulinemia, and normalized insulin sensitivity markers. This was associated with reduced portal plasma LPS levels, gut permeability, and higher intestinal tight junction proteins Zonula occludens-1 and occludin. Moreover, META060 treatment increased the plasma level of the anti-inflammatory cytokine interleukin-10 and decreased the plasma level of the pro-inflammatory cytokine granulocyte colony-stimulating factor. In conclusion, this research allows us to decipher a novel mechanism contributing to the positive effects of META060 treatment, and supports the need to investigate such compounds in obese and type 2 diabetic patients.
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Affiliation(s)
| | | | | | | | - Patrice D. Cani
- Université catholique de Louvain, Louvain Drug Research Institute, Metabolism and Nutrition Research Group, Brussels, Belgium
- * E-mail:
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McDade TW, Tallman PS, Adair LS, Borja J, Kuzawa CW. Comparative insights into the regulation of inflammation: levels and predictors of interleukin 6 and interleukin 10 in young adults in the Philippines. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2011; 146:373-84. [PMID: 21994014 PMCID: PMC3838924 DOI: 10.1002/ajpa.21586] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2011] [Accepted: 06/15/2011] [Indexed: 01/04/2023]
Abstract
Inflammation is a central part of innate immunity, but its role in anti-pathogen defenses has been overshadowed by recent interest in the contribution of inflammation to a wide range of chronic degenerative diseases. Current research on chronic inflammation is conducted primarily in affluent populations with low levels of infectious disease; comparative research in different ecological settings is needed to advance understandings of the causes and consequences of variation in the regulation of inflammation. This article investigates the levels and predictors of interleukin-6 (IL-6) and interleukin-10 (IL-10)-two cytokines important to the regulation of inflammation-in a large, population-based study in the Philippines. Concentrations of IL-6 and IL-10 were determined in N = 1,569 healthy young adults (20-22 years) in Metro Cebu, Philippines. IL-6 and IL-10 concentrations were positively correlated, and body mass index and symptoms of infectious disease were both associated with higher concentrations of IL-6 and IL-10. Median concentrations of IL-6 (1.0 pg/mL) and IL-10 (7.56 pg/mL) were substantially lower and higher, respectively, than levels reported for other populations based on a systematic review of prior research. This study contributes to a growing body of research in human ecological immunology, and suggests that there may be substantial population differences in the regulation of inflammation that has implications for the association between inflammation and disease.
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Affiliation(s)
- Thomas W McDade
- Department of Anthropology, Northwestern University, Evanston, IL 60208, USA.
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Vykoukal D, Davies MG. Vascular biology of metabolic syndrome. J Vasc Surg 2011; 54:819-31. [PMID: 21439758 PMCID: PMC3136643 DOI: 10.1016/j.jvs.2011.01.003] [Citation(s) in RCA: 84] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2010] [Revised: 01/02/2011] [Accepted: 01/06/2011] [Indexed: 12/20/2022]
Abstract
The metabolic syndrome is a constellation of clinical risk factors comprising atherogenic dyslipidemia (low high-density lipoprotein and high triglycerides levels), elevated blood pressure, elevated plasma glucose, a prothrombotic state, and a proinflammatory state accompanied by an increased risk for cardiovascular disease and type 2 diabetes mellitus. The adipose tissue of obese humans contains increased numbers of macrophages, and once activated, these macrophages are responsible for the expression of most of the tissue's tumor necrosis factor (TNF)-α and interleukin (IL)-6. Chronic inflammation associated with visceral obesity induces altered lipoprotein metabolism and insulin resistance in the liver. Adipocytes secrete a variety of hormones, cytokines, growth factors, and other bioactive substances, conceptualized as adipocytokines, including plasminogen activator inhibitor 1 (PAI-1), TNF-α, leptin, and adiponectin. The dysregulation of these adipokines contributes to the pathogenesis of obesity. Adipose tissue-resident macrophages and adipocytes in the adipose tissue combined with the consequences of hyperglycemia, altered lipoproteins, and hyperinsulinemia in the vasculature and within organ microcirculation lead to dysfunctional endothelia and a proinflammatory state. Metabolic syndrome thus represents a combination of synergistic vascular pathologies that lead to an accelerated atherogenic state that compromises the ability of the patient to satisfactorily respond to humoral, cellular, and mechanical stresses.
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Affiliation(s)
- Daynene Vykoukal
- Vascular Biology and Therapeutics Program, The Methodist Hospital Research Institute, The Methodist Hospital, Houston, TX77030, USA
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Ikeoka DT, Pachler C, Mader JK, Bock G, Neves AL, Svehlikova E, Feichtner F, Koehler G, Wrighton CJ, Pieber TR, Ellmerer M. Lipid-heparin infusion suppresses the IL-10 response to trauma in subcutaneous adipose tissue in humans. Obesity (Silver Spring) 2011; 19:715-21. [PMID: 21088675 DOI: 10.1038/oby.2010.227] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
An imbalance between pro- and anti-inflammatory cytokine productions in adipose tissue is thought to contribute to chronic, systemic, low-grade inflammation and consequently to an increased risk of cardiovascular complications in obese and type 2 diabetic patients. Nonesterified fatty acids (NEFA), whose serum levels are elevated in such patients, have been shown to interfere with cytokine production in vitro. In order to evaluate the effects of elevated NEFA levels on cytokine production in adipose tissue in vivo we used an 18-gauge open-flow microperfusion (OFM) catheter to induce local inflammation in the subcutaneous adipose tissue (SAT) of healthy volunteers and to sample interstitial fluid (IF) specifically from the inflamed tissue. In two crossover studies, nine subjects received either an intravenous lipid-heparin infusion to elevate circulating NEFA levels or saline over a period of 28 h. The former increased the circulating levels of triglycerides (TGs), NEFA, glucose, and insulin over the study period. NEFA effects on locally induced inflammation were estimated by measuring the levels of a panel adipokines in the OFM probe effluent. Interleukin-6 (IL-6), IL-8, tumor necrosis factor-α (TNF-α) and monocyte chemoattractant protein-1 (MCP-1) levels increased during the study period but were not affected by lipid-heparin infusion. In contrast, the level of IL-10, an anti-inflammatory cytokine, was significantly reduced during the final hour of lipid-heparin infusion (saline: 449.2 ± 105.9 vs. lipid-heparin: 65.4 ± 15.4 pg/ml; P = 0.02). These data provide the first in vivo evidence that elevated NEFA can modulate cytokine production by adipose tissue.
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Affiliation(s)
- Dimas T Ikeoka
- Department of Internal Medicine, Medical University of Graz, Graz, Austria.
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Abstract
Years before insulin was discovered, anti-inflammatory sodium salicylate was used to treat diabetes in 1901. Intriguingly for many years that followed, diabetes was viewed as a disorder of glucose metabolism, and then it was described as a disease of dysregulated lipid metabolism. The diabetes research focused on the causal relationship between obesity and insulin resistance, a major characteristic of type 2 diabetes. It is only within the past 20 years when the notion of inflammation as a cause of insulin resistance began to surface. In obesity, inflammation develops when macrophages infiltrate adipose tissue and stimulate adipocyte secretion of inflammatory cytokines, that in turn affect energy balance, glucose and lipid metabolism, leading to insulin resistance. This report reviews recent discoveries of stress kinase signaling involving molecular scaffolds and endoplasmic reticulum chaperones that regulate energy balance and glucose homeostasis. As we advance from a conceptual understanding to molecular discoveries, a century-old story of inflammation and insulin resistance is re-born with new ideas.
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Affiliation(s)
- Jason K. Kim
- Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, Massachusetts, USA
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Bassols J, Botas P, Moreno-Navarrete JM, Delgado E, Ortega F, Ricart W, Fernandez-Real JM. Environmental and genetic factors influence the relationship between circulating IL-10 and obesity phenotypes. Obesity (Silver Spring) 2010; 18:611-8. [PMID: 19798061 DOI: 10.1038/oby.2009.313] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Interleukin-10 (IL-10) is a centrally operating anti-inflammatory cytokine that plays a crucial role in the regulation of the innate immune system. It has strong inactivating properties on the inflammatory host response and has been related with viral persistence. We aimed to evaluate the association among circulating IL-10, obesity phenotypes, IL-10 and IL-10R1 gene polymorphisms, and the environmental exposure to viral infection. IL-10 -819C/T gene promoter and IL-10 receptor-1 -243A/G gene polymorphisms were studied in 760 subjects, whereas the former was also investigated in a replication study of 676 subjects. The association of circulating IL-10 levels (enzyme-linked immunosorbent assay) with the serum IgG against adenoviruses and enteroviruses was evaluated in a subset of 189 subjects. Circulating levels of IL-10 were increased in obese people and were positively associated with weight, BMI, waist, waist-to-hip ratio, fat mass, systolic pressure, and, interestingly, the titer of adenoviruses and enteroviruses. Obese subjects with adenovirus titer over the median had the highest circulating IL-10 concentration. Both obesity and adenovirus titer were independently associated with IL-10 variance. Nonmorbid obese T carriers for the -819CT IL-10 gene polymorphism had significantly higher BMI and waist circumference, and those with normal fasting glucose had increased fasting triglycerides. G carriers for the -536AG IL-10R1 gene polymorphism had higher systolic and diastolic pressures, and IL-10 levels; and obese G carriers had an increased waist-to-hip ratio. In summary, circulating IL-10 levels were associated not only with obesity status but also with genetic factors and with the exposure to environmental pathogens.
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Affiliation(s)
- Judit Bassols
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomédica de Girona, CIBEROBN Fisiopatología de la Obesidad y Nutrición CB06/03/010, Girona, Spain
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Fujisaka S, Usui I, Bukhari A, Ikutani M, Oya T, Kanatani Y, Tsuneyama K, Nagai Y, Takatsu K, Urakaze M, Kobayashi M, Tobe K. Regulatory mechanisms for adipose tissue M1 and M2 macrophages in diet-induced obese mice. Diabetes 2009; 58:2574-82. [PMID: 19690061 PMCID: PMC2768159 DOI: 10.2337/db08-1475] [Citation(s) in RCA: 539] [Impact Index Per Article: 35.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
OBJECTIVE To characterize the phenotypic changes of adipose tissue macrophages (ATMs) under different conditions of insulin sensitivity. RESEARCH DESIGN AND METHODS The number and the expressions of marker genes for M1 and M2 macrophages from mouse epididymal fat tissue were analyzed using flow cytometry after the mice had been subjected to a high-fat diet (HFD) and pioglitazone treatment. RESULTS Most of the CD11c-positive M1 macrophages and the CD206-positive M2 macrophages in the epididymal fat tissue were clearly separated using flow cytometry. The M1 and M2 macrophages exhibited completely different gene expression patterns. Not only the numbers of M1 ATMs and the expression of M1 marker genes, such as tumor necrosis factor-alpha and monocyte chemoattractant protein-1, but also the M1-to-M2 ratio were increased by an HFD and decreased by subsequent pioglitazone treatment, suggesting the correlation with whole-body insulin sensitivity. We also found that the increased number of M2 ATMs after an HFD was associated with the upregulated expression of interleukin (IL)-10, an anti-inflammatory Th2 cytokine, in the adipocyte fraction as well as in adipose tissue. The systemic overexpression of IL-10 by an adenovirus vector increased the expression of M2 markers in adipose tissue. CONCLUSIONS M1 and M2 ATMs constitute different subsets of macrophages. Insulin resistance is associated with both the number of M1 macrophages and the M1-to-M2 ratio. The increased expression of IL-10 after an HFD might be involved in the increased recruitment of M2 macrophages.
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Affiliation(s)
- Shiho Fujisaka
- First Department of Internal Medicine, Graduate School of Medicine and Pharmaceutical Science for Research, Tokyo, Japan
| | - Isao Usui
- First Department of Internal Medicine, Graduate School of Medicine and Pharmaceutical Science for Research, Tokyo, Japan
- Corresponding author: Isao Usui,
| | - Agussalim Bukhari
- First Department of Internal Medicine, Graduate School of Medicine and Pharmaceutical Science for Research, Tokyo, Japan
| | - Masashi Ikutani
- Department of Immunobiology and Pharmacological Genetics, Graduate School of Medicine and Pharmaceutical Science for Research, Tokyo, Japan
| | - Takeshi Oya
- Department of Pathology, University of Toyama, Toyama, Japan
| | - Yukiko Kanatani
- First Department of Internal Medicine, Graduate School of Medicine and Pharmaceutical Science for Research, Tokyo, Japan
| | - Koichi Tsuneyama
- Department of Diagnostic Pathology, University of Toyama, Toyama, Japan
| | - Yoshinori Nagai
- Department of Immunobiology and Pharmacological Genetics, Graduate School of Medicine and Pharmaceutical Science for Research, Tokyo, Japan
| | - Kiyoshi Takatsu
- Department of Immunobiology and Pharmacological Genetics, Graduate School of Medicine and Pharmaceutical Science for Research, Tokyo, Japan
| | - Masaharu Urakaze
- First Department of Internal Medicine, Graduate School of Medicine and Pharmaceutical Science for Research, Tokyo, Japan
| | | | - Kazuyuki Tobe
- First Department of Internal Medicine, Graduate School of Medicine and Pharmaceutical Science for Research, Tokyo, Japan
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Hong EG, Ko HJ, Cho YR, Kim HJ, Ma Z, Yu TY, Friedline RH, Kurt-Jones E, Finberg R, Fischer MA, Granger EL, Norbury CC, Hauschka SD, Philbrick WM, Lee CG, Elias JA, Kim JK. Interleukin-10 prevents diet-induced insulin resistance by attenuating macrophage and cytokine response in skeletal muscle. Diabetes 2009; 58:2525-35. [PMID: 19690064 PMCID: PMC2768157 DOI: 10.2337/db08-1261] [Citation(s) in RCA: 288] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
OBJECTIVE Insulin resistance is a major characteristic of type 2 diabetes and is causally associated with obesity. Inflammation plays an important role in obesity-associated insulin resistance, but the underlying mechanism remains unclear. Interleukin (IL)-10 is an anti-inflammatory cytokine with lower circulating levels in obese subjects, and acute treatment with IL-10 prevents lipid-induced insulin resistance. We examined the role of IL-10 in glucose homeostasis using transgenic mice with muscle-specific overexpression of IL-10 (MCK-IL10). RESEARCH DESIGN AND METHODS MCK-IL10 and wild-type mice were fed a high-fat diet (HFD) for 3 weeks, and insulin sensitivity was determined using hyperinsulinemic-euglycemic clamps in conscious mice. Biochemical and molecular analyses were performed in muscle to assess glucose metabolism, insulin signaling, and inflammatory responses. RESULTS MCK-IL10 mice developed with no obvious anomaly and showed increased whole-body insulin sensitivity. After 3 weeks of HFD, MCK-IL10 mice developed comparable obesity to wild-type littermates but remained insulin sensitive in skeletal muscle. This was mostly due to significant increases in glucose metabolism, insulin receptor substrate-1, and Akt activity in muscle. HFD increased macrophage-specific CD68 and F4/80 levels in wild-type muscle that was associated with marked increases in tumor necrosis factor-alpha, IL-6, and C-C motif chemokine receptor-2 levels. In contrast, MCK-IL10 mice were protected from diet-induced inflammatory response in muscle. CONCLUSIONS These results demonstrate that IL-10 increases insulin sensitivity and protects skeletal muscle from obesity-associated macrophage infiltration, increases in inflammatory cytokines, and their deleterious effects on insulin signaling and glucose metabolism. Our findings provide novel insights into the role of anti-inflammatory cytokine in the treatment of type 2 diabetes.
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Affiliation(s)
- Eun-Gyoung Hong
- Department of Cellular and Molecular Physiology, Pennsylvania State University College of Medicine, Hershey, Pennsylvania
- Section of Endocrinology and Metabolism, Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut
| | - Hwi Jin Ko
- Department of Cellular and Molecular Physiology, Pennsylvania State University College of Medicine, Hershey, Pennsylvania
- Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, Massachusetts
| | - You-Ree Cho
- Section of Endocrinology and Metabolism, Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut
| | - Hyo-Jeong Kim
- Section of Endocrinology and Metabolism, Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut
| | - Zhexi Ma
- Department of Cellular and Molecular Physiology, Pennsylvania State University College of Medicine, Hershey, Pennsylvania
| | - Tim Y. Yu
- Section of Endocrinology and Metabolism, Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut
| | - Randall H. Friedline
- Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, Massachusetts
| | - Evelyn Kurt-Jones
- Division of Endocrinology, Metabolism, and Diabetes, Department of Medicine, University of Massachusetts Medical School, Worcester, Massachusetts
| | - Robert Finberg
- Division of Endocrinology, Metabolism, and Diabetes, Department of Medicine, University of Massachusetts Medical School, Worcester, Massachusetts
| | - Matthew A. Fischer
- Department of Microbiology and Immunology, Pennsylvania State University College of Medicine, Hershey, Pennsylvania
| | - Erica L. Granger
- Department of Microbiology and Immunology, Pennsylvania State University College of Medicine, Hershey, Pennsylvania
| | - Christopher C. Norbury
- Department of Microbiology and Immunology, Pennsylvania State University College of Medicine, Hershey, Pennsylvania
| | | | - William M. Philbrick
- Section of Endocrinology and Metabolism, Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut
| | - Chun-Geun Lee
- Section of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut
| | - Jack A. Elias
- Section of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut
| | - Jason K. Kim
- Department of Cellular and Molecular Physiology, Pennsylvania State University College of Medicine, Hershey, Pennsylvania
- Section of Endocrinology and Metabolism, Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut
- Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, Massachusetts
- Division of Endocrinology, Metabolism, and Diabetes, Department of Medicine, University of Massachusetts Medical School, Worcester, Massachusetts
- Corresponding author: Jason K. Kim,
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Kohl A, Gögebakan O, Möhlig M, Osterhoff M, Isken F, Pfeiffer AFH, Weickert MO. Increased interleukin-10 but unchanged insulin sensitivity after 4 weeks of (1, 3)(1, 6)-beta-glycan consumption in overweight humans. Nutr Res 2009; 29:248-54. [PMID: 19410976 DOI: 10.1016/j.nutres.2009.03.002] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2008] [Revised: 03/12/2009] [Accepted: 03/12/2009] [Indexed: 01/04/2023]
Abstract
Obesity-induced insulin resistance has been suggested to be a systemic inflammatory condition with activation of the innate immune system. Animal studies indicate that certain dietary fibers such as (1,3)(1,6)-beta-D-glycans (BDG) have potent effects on immune activity such as increasing the antiinflammatory cytokine interleukin-10 (IL-10) and reducing the secretion of inflammatory factors. Therefore, we hypothesized that BDG consumption improves inflammatory markers and insulin sensitivity in overweight and obese subjects with moderately increased levels of C-reactive protein, indicating subclinical inflammation. We screened 180 overweight and obese subjects for moderately increased C-reactive protein levels on 2 or more occasions, in the absence of any signs of acute infection. Twelve of the subjects met all inclusion criteria and were investigated in a randomized, double-blind, placebo-controlled, crossover design for 2 x 4 weeks (washout > or =4 weeks). Subjects ingested capsules containing 3 x 0.5 g of highly purified BDG or 3 x 0.5 g of placebo (waxy maize starch) daily. Maintenance of the normal diet of the participants and the correct intake of the capsules were monitored, using 6 x 3-day food recording and counting of the provided capsules. Predefined outcome measures were BDG-induced changes in pro and antiinflammatory markers in circulating blood and gene expression in adipose tissue and peripheral insulin sensitivity expressed as M value. The BDG consumption for 4 weeks significantly increased both circulating levels and adipose tissue messenger RNA (mRNA) expression of the antiinflammatory cytokine IL-10 in overweight and obese humans. Insulin sensitivity as well as circulating levels and mRNA expression of proinflammatory cytokines were unaffected by BDG treatment. Increased IL-10 after BDG consumption might be a contributing factor to the known beneficial effects of dietary fiber intake.
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Affiliation(s)
- Angela Kohl
- Department of Clinical Nutrition, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany
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Saltevo J, Laakso M, Jokelainen J, Keinänen-Kiukaanniemi S, Kumpusalo E, Vanhala M. Levels of adiponectin, C-reactive protein and interleukin-1 receptor antagonist are associated with insulin sensitivity: a population-based study. Diabetes Metab Res Rev 2008; 24:378-83. [PMID: 18386294 DOI: 10.1002/dmrr.831] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
BACKGROUND We evaluated the relationship of insulin sensitivity (assessed with the quantitative insulin sensitivity check index, QUICKI) to adiponectin and pro-inflammatory markers, levels of high-sensitivity C-reactive protein (hs-CRP) and interleukin-1 receptor antagonist (IL-1 Ra). METHODS Cross-sectional study. Study population (N=923, i.e 411 men and 512 women) included five different population-based age groups (born in 1942, 1947, 1952, 1957 and 1962), [mean age 46 years and mean body mass index (BMI) 26 kg/m(2)]. Study protocol included an interview and measurements of anthropometric parameters and glucose, insulin, adiponectin, hs-CRP and IL-1 Ra. RESULTS Correlation (r) between QUICKI and adiponectin level was 0.334 [95% confidence intervals (CI), 0.275-0.392] and partial correlation adjusted for gender, BMI, smoking status, physical activity and age was 0.247 (95% CI, 0.185-0.308). There was negative correlation between QUICKI and IL-1 Ra (r= -0.385; 95% CI, -0.440 to -0.328) which remained statistically significant after the adjustment for confounding factors (r= -0.178; 95% CI, -0.240 to -0.113). Similarly, QUICKI was negatively correlated with hs-CRP (r= -0.241; 95% CI, -0.302 to -0.178), but after the adjustment it lost its statistical significance. There was a statistically significant gender difference (p=0.018) in correlation between QUICKI and IL-1 Ra levels (men: r= -0.348; 95% CI, -0.436 to - 0.261; women r= -0.500; 95% CI, -0.537 to -0.398). CONCLUSIONS Our results show that adiponectin level and markers of low-grade inflammation are related to insulin sensitivity. Adiponectin and IL-1 Ra levels might be better markers of the risk of obesity and type 2 diabetes than hs-CRP.
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Affiliation(s)
- J Saltevo
- Department of Internal Medicine, Central Hospital of Middle Finland, Jyväskylä, Finland.
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