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Cen Y, Feng D, Kowsar R, Cheng Z, Luo Y, Xiao Q. Sex-Specific Variations in the mRNA Levels of Candidate Genes in Peripheral Blood Mononuclear Cells from Patients with Diabetes: A Multistep Study. Endocr Res 2024; 49:59-74. [PMID: 37947760 DOI: 10.1080/07435800.2023.2280571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Accepted: 10/28/2023] [Indexed: 11/12/2023]
Abstract
BACKGROUND Type 2 diabetes (T2D) is one of the most prevalent diseases that also show sexual dimorphism in many different aspects. OBJECTIVES This study aimed to distinguish the mRNA expression of genes in peripheral blood mononuclear cells (PBMCs) in men or women with T2D using a multistep analysis. METHODS A total of 95 patients with T2D were compared based on their sex in terms of clinical variables and mRNA expression in their PBMCs. RESULTS Men with T2D had lower LDLC, HDLC, and HbA1c values in their blood, but greater creatinine levels. In men with T2D, TLR4, CCR2, NOX2, and p67phox mRNA expression was greater, but IL6 and NF-κB mRNA expression was lesser in PBMCs. There was a link between fasting plasma glucose (FPG), triglycerides, and hs-CRP, as well as COX1 mRNA in men with T2D. In women with T2D, FPG was associated with the mRNA expression of THBS1 and p67phox, as well as triglycerides and HDLC levels. We found the exclusive effect of FPG on HDLC, HbA1c, as well as p67phox mRNA in PBMCs of women with T2D. Analysis revealed the exclusive effect of FPG on hs-CRP and PAFR mRNA in PBMCs of men with T2D. FPG was shown to be associated with body mass index, hs-CRP, triglycerides, and COX1 mRNA in men with T2D, and with serum triglycerides, THSB1, and p67phox mRNA in women with T2D, according to network analysis. HbA1c was linked with NF-κB mRNA in women with T2D. CONCLUSIONS Using a multistep analysis, it was shown that network analysis outperformed traditional analytic techniques in identifying sex-specific alterations in mRNA gene expression in PBMCs of T2D patients. The development of sex-specific therapeutic approaches may result from an understanding of these disparities.
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Affiliation(s)
- Yuzhen Cen
- Department of Blood Transfusion, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Dana Feng
- Department of Blood Transfusion, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Rasoul Kowsar
- Department of Animal Science, College of Agriculture, Isfahan University of Technology, Isfahan, Iran
| | - Zhen Cheng
- Guantian Community Healthcare Center, Shenzhen Baoan Shiyan People's Hospital, Shenzhen, China
| | - Yu Luo
- Guantian Community Healthcare Center, Shenzhen Baoan Shiyan People's Hospital, Shenzhen, China
| | - Qingyu Xiao
- Department of Blood Transfusion, Shenzhen Baoan Shiyan People's Hospital, Shenzhen, China
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Jabłonowska-Lietz B, Nowicka G, Włodarczyk M, Rejowski S, Stasiowska M, Wrzosek M. Initial Weight Loss, Anthropometric Parameters, and Proinflammatory Transcript Levels in Patients with Class I Obesity. Biomedicines 2023; 11:2304. [PMID: 37626800 PMCID: PMC10452077 DOI: 10.3390/biomedicines11082304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 08/09/2023] [Accepted: 08/15/2023] [Indexed: 08/27/2023] Open
Abstract
Research into early predictors of effective weight loss could help determine more effective therapeutic interventions. In this study, 106 subjects with class I obesity, genotyped with the fat mass and obesity-associated (FTO) rs9930506 gene variant, were enrolled into a 12-week weight loss program (WLP). Anthropometric and body composition measurements were controlled with bioelectrical impedance analysis (BIA) at baseline and after 4 and 12 weeks. Biopsies of abdominal subcutaneous adipose tissue (AT) and venous blood samples were collected to monitor changes in interleukin 6 (IL-6), tumor necrosis factor-alpha (TNF-α), and nuclear factor kappa B (NF-κB) mRNA levels in white blood cells (WBCs) and to assess if changes in WBC gene expression reflected changes in adipose tissue. The FTO rs9930506 variant had no effect on weight loss and no reduction in proinflammatory transcripts in WBCs or AT. Changes in anthropometric parameters were associated with changes in carbohydrate metabolism. A linear regression model showed that initial weight loss (after 4 weeks of the WLP) was the most predictive factor of weight loss success after 12 weeks of the WLP. Changes in plasma lipids or proinflammatory transcript levels in WBCs or AT were not associated with weight loss effectiveness. However, the gene expression in WBCs did reflect changes occurring in subcutaneous AT.
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Affiliation(s)
- Beata Jabłonowska-Lietz
- Medical Center, National Institute of Public Health NIH—National Research Institute, 24 Chocimska St., 00-791 Warsaw, Poland
| | - Grażyna Nowicka
- Department of Biochemistry and Pharmacogenomics, Center for Preclinical Research, Medical University of Warsaw, 1 Banacha St., 02-097 Warsaw, Poland
| | - Marta Włodarczyk
- Department of Biochemistry and Pharmacogenomics, Center for Preclinical Research, Medical University of Warsaw, 1 Banacha St., 02-097 Warsaw, Poland
| | - Sławomir Rejowski
- Liver and Internal Medicine Unit, Department of General, Transplant and Liver Surgery, Medical University of Warsaw, 1A Banacha St., 02-097 Warsaw, Poland
| | - Maria Stasiowska
- Department of Anaesthesia and Intensive Care, University College London Hospital, National Hospital for Neurology and Neurosurgery, Queen Square, London WC1N 3BG, UK
| | - Małgorzata Wrzosek
- Department of Biochemistry and Pharmacogenomics, Center for Preclinical Research, Medical University of Warsaw, 1 Banacha St., 02-097 Warsaw, Poland
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Cimini FA, Tramutola A, Barchetta I, Ceccarelli V, Gangitano E, Lanzillotta S, Lanzillotta C, Cavallo MG, Barone E. Dynamic Changes of BVRA Protein Levels Occur in Response to Insulin: A Pilot Study in Humans. Int J Mol Sci 2023; 24:ijms24087282. [PMID: 37108445 PMCID: PMC10138944 DOI: 10.3390/ijms24087282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 04/12/2023] [Accepted: 04/13/2023] [Indexed: 04/29/2023] Open
Abstract
Biliverdin reductase-A (BVRA) is involved in the regulation of insulin signaling and the maintenance of glucose homeostasis. Previous research showed that BVRA alterations are associated with the aberrant activation of insulin signaling in dysmetabolic conditions. However, whether BVRA protein levels change dynamically within the cells in response to insulin and/or glucose remains an open question. To this aim, we evaluated changes of intracellular BVRA levels in peripheral blood mononuclear cells (PBMC) collected during the oral glucose tolerance test (OGTT) in a group of subjects with different levels of insulin sensitivity. Furthermore, we looked for significant correlations with clinical measures. Our data show that BVRA levels change dynamically during the OGTT in response to insulin, and greater BVRA variations occur in those subjects with lower insulin sensitivity. Changes of BVRA significantly correlate with indexes of increased insulin resistance and insulin secretion (HOMA-IR, HOMA-β, and insulinogenic index). At the multivariate regression analysis, the insulinogenic index independently predicted increased BVRA area under curve (AUC) during the OGTT. This pilot study showed, for the first time, that intracellular BVRA protein levels change in response to insulin during OGTT and are greater in subjects with lower insulin sensitivity, supporting the role of BVR-A in the dynamic regulation of the insulin signaling pathway.
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Affiliation(s)
- Flavia Agata Cimini
- Department of Experimental Medicine, Sapienza University of Rome, 00185 Rome, Italy
| | - Antonella Tramutola
- Department of Biochemical Sciences "A. Rossi-Fanelli", Sapienza University of Rome, 00185 Rome, Italy
| | - Ilaria Barchetta
- Department of Experimental Medicine, Sapienza University of Rome, 00185 Rome, Italy
| | - Valentina Ceccarelli
- Department of Experimental Medicine, Sapienza University of Rome, 00185 Rome, Italy
| | - Elena Gangitano
- Department of Experimental Medicine, Sapienza University of Rome, 00185 Rome, Italy
| | - Simona Lanzillotta
- Department of Biochemical Sciences "A. Rossi-Fanelli", Sapienza University of Rome, 00185 Rome, Italy
| | - Chiara Lanzillotta
- Department of Biochemical Sciences "A. Rossi-Fanelli", Sapienza University of Rome, 00185 Rome, Italy
| | | | - Eugenio Barone
- Department of Biochemical Sciences "A. Rossi-Fanelli", Sapienza University of Rome, 00185 Rome, Italy
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Zhang X, Ha S, Lau HCH, Yu J. Excess body weight: Novel insights into its roles in obesity comorbidities. Semin Cancer Biol 2023; 92:16-27. [PMID: 36965839 DOI: 10.1016/j.semcancer.2023.03.008] [Citation(s) in RCA: 24] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 03/13/2023] [Accepted: 03/21/2023] [Indexed: 03/27/2023]
Abstract
Excess body weight is a global health problem due to sedentary lifestyle and unhealthy diet, affecting 2 billion population worldwide. Obesity is a major risk factor for metabolic diseases. Notably, the metabolic risk of obesity largely depends on body weight distribution, of which visceral adipose tissues but not subcutaneous fats are closely associated with obesity comorbidities, including type 2 diabetes, non-alcoholic fatty liver disease, cardiovascular disease and certain types of cancer. Latest multi-omics and mechanistical studies reported the crucial involvement of genetic and epigenetic alterations, adipokines dysregulation, immunity changes, imbalance of white and brown adipose tissues, and gut microbial dysbiosis in mediating the pathogenic association between visceral adipose tissues and comorbidities. In this review, we explore the epidemiology of excess body weight and the up-to-date mechanism of how excess body weight and obesity lead to chronic complications. We also examine the utilization of visceral fat measurement as an accurate clinical parameter for risk assessment in healthy individuals and clinical outcome prediction in obese subjects. In addition, current approaches for the prevention and treatment of excess body weight and its related metabolic comorbidities are further discussed. DATA AVAILABILITY: No data was used for the research described in the article.
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Affiliation(s)
- Xiang Zhang
- Institute of Digestive Disease and the Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong, China
| | - Suki Ha
- Institute of Digestive Disease and the Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong, China
| | - Harry Cheuk-Hay Lau
- Institute of Digestive Disease and the Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong, China
| | - Jun Yu
- Institute of Digestive Disease and the Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong, China.
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microRNAs in newborns with low birth weight: relation to birth size and body composition. Pediatr Res 2022; 92:829-837. [PMID: 34799665 DOI: 10.1038/s41390-021-01845-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 10/15/2021] [Accepted: 10/28/2021] [Indexed: 11/08/2022]
Abstract
BACKGROUND Children with low birth weight (LBW) have a higher risk of developing endocrine-metabolic disorders later in life. Deregulation of specific microRNAs (miRNAs) could underscore the programming of adult pathologies. We analyzed the miRNA expression pattern in both umbilical cord serum samples from LBW and appropriate-for-gestational-age (AGA) newborns and maternal serum samples in the 3rd trimester of gestation, and delineated the relationships with fetal growth, body composition, and markers of metabolic risk. METHODS Serum samples of 12 selected mother-newborn pairs, including 6 LBW and 6 AGA newborns, were used for assessing miRNA profile by RNA-sequencing. The miRNAs with differential expression were validated in a larger cohort [49 maternal samples and 49 umbilical cord samples (24 LBW, 25 AGA)] by RT-qPCR. Anthropometric, endocrine-metabolic markers and body composition (by DXA) in infants were determined longitudinally over 12 months. RESULTS LBW newborns presented reduced circulating concentrations of miR-191-3p (P = 0.015). miR-191-3p levels reliably differentiated LBW from AGA individuals (ROC AUC = 0.76) and were positively associated with anthropometric and body composition measures at birth and weight Z-score at 12 months (P < 0.05). CONCLUSIONS miR-191-3p was reliably different in LBW individuals, and could be a new player in the epigenetic mechanisms linking LBW and future endocrine-metabolic adverse outcomes. IMPACT Children with low birth weight (LBW) have a higher risk of developing endocrine-metabolic disorders. Deregulation of specific microRNAs (miRNAs) could underscore the programming of those pathologies. miR-191-3p is downregulated in serum of LBW newborns, and its concentrations associate positively with neonatal anthropometric measures, with lean mass and bone accretion at age 15 days and with weight Z-score at age 12 months. miR-191-3p was reliably different in individuals with LBW, and could be a new player in the epigenetic mechanisms connecting LBW and future endocrine-metabolic adverse outcomes.
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de Mendonça ELSS, Fragoso MBT, de Oliveira JM, Xavier JA, Goulart MOF, de Oliveira ACM. Gestational Diabetes Mellitus: The Crosslink among Inflammation, Nitroxidative Stress, Intestinal Microbiota and Alternative Therapies. Antioxidants (Basel) 2022; 11:129. [PMID: 35052633 PMCID: PMC8773111 DOI: 10.3390/antiox11010129] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 12/30/2021] [Accepted: 01/04/2022] [Indexed: 01/09/2023] Open
Abstract
Gestational diabetes mellitus (GDM) is characterized by a set of metabolic complications arising from adaptive failures to the pregnancy period. Estimates point to a prevalence of 3 to 15% of pregnancies. Its etiology includes intrinsic and extrinsic aspects of the progenitress, which may contribute to the pathophysiogenesis of GDM. Recently, researchers have identified that inflammation, oxidative stress, and the gut microbiota participate in the development of the disease, with potentially harmful effects on the health of the maternal-fetal binomial, in the short and long terms. In this context, alternative therapies were investigated from two perspectives: the modulation of the intestinal microbiota, with probiotics and prebiotics, and the use of natural products with antioxidant and anti-inflammatory properties, which may mitigate the endogenous processes of the GDM, favoring the health of the mother and her offspring, and in a future perspective, alleviating this critical public health problem.
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Affiliation(s)
- Elaine Luiza Santos Soares de Mendonça
- Institute of Chemistry and Biotechnology, Federal University of Alagoas, Maceio 57072-970, Alagoas, Brazil; (E.L.S.S.d.M.); (M.B.T.F.); (J.M.d.O.); (J.A.X.)
| | - Marilene Brandão Tenório Fragoso
- Institute of Chemistry and Biotechnology, Federal University of Alagoas, Maceio 57072-970, Alagoas, Brazil; (E.L.S.S.d.M.); (M.B.T.F.); (J.M.d.O.); (J.A.X.)
| | - Jerusa Maria de Oliveira
- Institute of Chemistry and Biotechnology, Federal University of Alagoas, Maceio 57072-970, Alagoas, Brazil; (E.L.S.S.d.M.); (M.B.T.F.); (J.M.d.O.); (J.A.X.)
| | - Jadriane Almeida Xavier
- Institute of Chemistry and Biotechnology, Federal University of Alagoas, Maceio 57072-970, Alagoas, Brazil; (E.L.S.S.d.M.); (M.B.T.F.); (J.M.d.O.); (J.A.X.)
| | - Marília Oliveira Fonseca Goulart
- Institute of Chemistry and Biotechnology, Federal University of Alagoas, Maceio 57072-970, Alagoas, Brazil; (E.L.S.S.d.M.); (M.B.T.F.); (J.M.d.O.); (J.A.X.)
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Cimini FA, Barchetta I, Zuliani I, Pagnotta S, Bertoccini L, Dule S, Zampieri M, Reale A, Baroni MG, Cavallo MG, Barone E. Biliverdin reductase-A protein levels are reduced in type 2 diabetes and are associated with poor glycometabolic control. Life Sci 2021; 284:119913. [PMID: 34453944 DOI: 10.1016/j.lfs.2021.119913] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 08/09/2021] [Accepted: 08/09/2021] [Indexed: 12/14/2022]
Abstract
AIM Biliverdin reductase-A (BVR-A) other than its canonical role in the degradation pathway of heme as partner of heme oxygenase-1 (HO1), has recently drawn attention as a protein with pleiotropic functions involved in insulin-glucose homeostasis. However, whether BVR-A expression is altered in type 2 diabetes (T2D) has never been evaluated. MAIN METHODS BVR-A protein levels were evaluated in T2D (n = 44) and non-T2D (n = 29) subjects, who underwent complete clinical workup and routine biochemistry. In parallel, levels HO1, whose expression is regulated by BVR-A as well as levels of tumor necrosis factor α (TNFα), which is a known repressor for BVR-A with pro-inflammatory properties, were also assessed. KEY FINDINGS BVR-A levels were significantly lower in T2D subjects than in non-T2D subjects. Reduced BVR-A levels were associated with greater body mass, systolic blood pressure, fasting blood glucose (FBG), glycated hemoglobin (HbA1c), triglycerides, transaminases and TNFα, and with lower high-density lipoprotein (HDL) levels. Lower BVR-A levels are associated with reduced HO1 protein levels and the multivariate analysis showed that BVR-A represented the main determinant of HO1 levels in T2D after adjustment. In addition, reduced BVR-A levels were able to predict the presence of T2D with AUROC = 0.69. for potential confounders. SIGNIFICANCE Our results demonstrate for the first time that BVR-A protein levels are reduced in T2D individuals, and that this alteration strictly correlates with poor glycometabolic control and a pro-inflammatory state. Hence, these observations reinforce the hypothesis that reduced BVR-A protein levels may represent a key event in the dysregulation of intracellular pathways finally leading to metabolic disorders.
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Affiliation(s)
| | - Ilaria Barchetta
- Department of Experimental Medicine, Sapienza University of Rome, Italy
| | - Ilaria Zuliani
- Department of Biochemical Sciences "A. Rossi-Fanelli", Sapienza University of Rome, Piazzale A. Moro 5, 00185 Roma, Italy
| | - Sara Pagnotta
- Department of Biochemical Sciences "A. Rossi-Fanelli", Sapienza University of Rome, Piazzale A. Moro 5, 00185 Roma, Italy
| | - Laura Bertoccini
- Department of Experimental Medicine, Sapienza University of Rome, Italy
| | - Sara Dule
- Department of Experimental Medicine, Sapienza University of Rome, Italy
| | - Michele Zampieri
- Department of Experimental Medicine, Sapienza University of Rome, Italy
| | - Anna Reale
- Department of Experimental Medicine, Sapienza University of Rome, Italy
| | - Marco Giorgio Baroni
- Department of Clinical Medicine, Public Health, Life and Environmental Sciences (MeSVA), University of L'Aquila, Italy; Neuroendocrinology and Metabolic Diseases, IRCCS Neuromed, Pozzilli, Is, Italy
| | | | - Eugenio Barone
- Department of Biochemical Sciences "A. Rossi-Fanelli", Sapienza University of Rome, Piazzale A. Moro 5, 00185 Roma, Italy.
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Wen CJ, Chang CH, Chen CY, Peng JK, Huang HL, Chuang PN, Chen CY, Tsai JS. Age-dependent messenger RNA expression of toll-like receptor 4 and intercellular adhesion molecule-1 in peripheral blood mononuclear cells. Eur J Clin Invest 2021; 51:e13522. [PMID: 33590878 DOI: 10.1111/eci.13522] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 02/13/2021] [Accepted: 02/14/2021] [Indexed: 12/20/2022]
Abstract
BACKGROUND Inflammation plays an important role in the ageing process in which monocytes/macrophages are important players. Intercellular adhesion molecule-1 (ICAM-1), tumour necrosis factor-α (TNF-α) and Toll-like receptor 4 (TLR4) are well-known inflammatory markers. This study aimed to investigate the relationship between age and the expression and correlation of ICAM-1, TNF-α and TLR4 mRNA in peripheral blood mononuclear cells (PBMCs). METHODS A total of 239 participants were recruited in a medical centre in Taiwan. The mRNA isolated from the PBMCs was used to determine the levels of ICAM-1, TNF-α and TLR4 mRNAs with real-time polymerase chain reaction (PCR). The propensity-matched analysis was also applied for subgroup analysis. RESULTS When compared 189 older adults (≧65 years) to 50 younger adults (<65 years), the ICAM-1, TNF-α and TLR4 mRNA levels in PBMCs were significantly higher in older adults (2.00 ± 0.72 vs 0.87 ± 0.34 for ICAM-1, 2.32 ± 0.69 vs 1.15 ± 0.44 for TNF-α and 1.56 ± 0.47 vs 1.05 ± 0.51 for TLR4, and all P < .0001). Also, both age and TLR4 were independent factors affecting mononuclear cell ICAM-1 in the multiple linear regression analysis (P < .0001). CONCLUSION The mRNA levels of ICAM-1 and TLR4 in PBMCs are higher in older adults than those in younger adults. TLR4 is an independent factor affecting ICAM-1 expression in PBMCs, especially in older adults. This may suggest that ICAM-1 and TLR4 in PBMCs are potential biomarkers and their relationship may shed some light on the ageing process.
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Affiliation(s)
- Chiung-Jung Wen
- Department of Geriatrics and Gerontology, National Taiwan University Hospital, Taipei, Taiwan.,Department of Family Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Chin-Hao Chang
- Department of Medical Research, National Taiwan University Hospital, Taipei, Taiwan
| | - Chin-Ying Chen
- Department of Family Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan.,Department of Family Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Jen-Kuei Peng
- Department of Family Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan.,Department of Family Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Hsien-Liang Huang
- Department of Family Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan.,Department of Family Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Pei-Ni Chuang
- Department of Family Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan.,Department of Family Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Ching-Yu Chen
- Department of Family Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan.,Department of Family Medicine, National Taiwan University Hospital, Taipei, Taiwan.,Division of Geriatric Research, Institute of Population Health Science, National Health Research Institutes, Zhunan, Taiwan
| | - Jaw-Shiun Tsai
- Department of Family Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan.,Department of Family Medicine, National Taiwan University Hospital, Taipei, Taiwan.,Center for Complementary and Integrated Medicine, National Taiwan University Hospital, Taipei, Taiwan
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Semlitsch T, Krenn C, Jeitler K, Berghold A, Horvath K, Siebenhofer A. Long-term effects of weight-reducing diets in people with hypertension. Cochrane Database Syst Rev 2021; 2:CD008274. [PMID: 33555049 PMCID: PMC8093137 DOI: 10.1002/14651858.cd008274.pub4] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
BACKGROUND All major guidelines for antihypertensive therapy recommend weight loss. Dietary interventions that aim to reduce body weight might therefore be a useful intervention to reduce blood pressure and adverse cardiovascular events associated with hypertension. OBJECTIVES Primary objectives To assess the long-term effects of weight-reducing diets in people with hypertension on all-cause mortality, cardiovascular morbidity, and adverse events (including total serious adverse events, withdrawal due to adverse events, and total non-serious adverse events). Secondary objectives To assess the long-term effects of weight-reducing diets in people with hypertension on change from baseline in systolic blood pressure, change from baseline in diastolic blood pressure, and body weight reduction. SEARCH METHODS For this updated review, the Cochrane Hypertension Information Specialist searched the following databases for randomised controlled trials up to April 2020: the Cochrane Hypertension Specialised Register, CENTRAL (2020, Issue 3), Ovid MEDLINE, Ovid Embase, and ClinicalTrials.gov. We also contacted authors of relevant papers about further published and unpublished work. The searches had no language restrictions. SELECTION CRITERIA We included randomised controlled trials (RCTs) of at least 24 weeks' duration that compared weight-reducing dietary interventions to no dietary intervention in adults with primary hypertension. DATA COLLECTION AND ANALYSIS Two review authors independently assessed risks of bias and extracted data. Where appropriate and in the absence of significant heterogeneity between studies (P > 0.1), we pooled studies using a fixed-effect meta-analysis. In case of moderate or larger heterogeneity as measured by Higgins I2, we used a random-effects model. MAIN RESULTS This second review update did not reveal any new trials, so the number of included trials remains the same: eight RCTs involving a total of 2100 participants with high blood pressure and a mean age of 45 to 66 years. Mean treatment duration was 6 to 36 months. We judged the risks of bias as unclear or high for all but two trials. No study included mortality as a predefined outcome. One RCT evaluated the effects of dietary weight loss on a combined endpoint consisting of the necessity of reinstating antihypertensive therapy and severe cardiovascular complications. In this RCT, weight-reducing diet lowered the endpoint compared to no diet: hazard ratio 0.70 (95% confidence interval (CI) 0.57 to 0.87). None of the trials evaluated adverse events as designated in our protocol. The certainty of the evidence was low for a blood pressure reduction in participants assigned to weight-loss diets as compared to controls: systolic blood pressure: mean difference (MD) -4.5 mm Hg (95% CI -7.2 to -1.8 mm Hg) (3 studies, 731 participants), and diastolic blood pressure: MD -3.2 mm Hg (95% CI -4.8 to -1.5 mm Hg) (3 studies, 731 participants). We judged the certainty of the evidence to be high for weight reduction in dietary weight loss groups as compared to controls: MD -4.0 kg (95% CI -4.8 to -3.2) (5 trials, 880 participants). Two trials used withdrawal of antihypertensive medication as their primary outcome. Even though we did not consider this a relevant outcome for our review, the results of these RCTs strengthen the finding of a reduction of blood pressure by dietary weight-loss interventions. AUTHORS' CONCLUSIONS In this second update, the conclusions remain unchanged, as we found no new trials. In people with primary hypertension, weight-loss diets reduced body weight and blood pressure, but the magnitude of the effects are uncertain due to the small number of participants and studies included in the analyses. Whether weight loss reduces mortality and morbidity is unknown. No useful information on adverse effects was reported in the relevant trials.
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Affiliation(s)
- Thomas Semlitsch
- Institute of General Practice and Evidence-Based Health Services Research, Medical University of Graz, Graz, Austria
| | - Cornelia Krenn
- Institute of General Practice and Evidence-Based Health Services Research, Medical University of Graz, Graz, Austria
| | - Klaus Jeitler
- Institute of General Practice and Evidence-Based Health Services Research, Medical University of Graz, Graz, Austria
| | - Andrea Berghold
- Institute for Medical Informatics, Statistics and Documentation, Medical University of Graz, Graz, Austria
| | - Karl Horvath
- Institute of General Practice and Evidence-Based Health Services Research, Medical University of Graz, Graz, Austria
| | - Andrea Siebenhofer
- Institute of General Practice and Evidence-Based Health Services Research, Medical University of Graz, Graz, Austria
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10
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Valenzuela PL, Carrera-Bastos P, Gálvez BG, Ruiz-Hurtado G, Ordovas JM, Ruilope LM, Lucia A. Lifestyle interventions for the prevention and treatment of hypertension. Nat Rev Cardiol 2020; 18:251-275. [PMID: 33037326 DOI: 10.1038/s41569-020-00437-9] [Citation(s) in RCA: 102] [Impact Index Per Article: 25.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/24/2020] [Indexed: 02/07/2023]
Abstract
Hypertension affects approximately one third of the world's adult population and is a major cause of premature death despite considerable advances in pharmacological treatments. Growing evidence supports the use of lifestyle interventions for the prevention and adjuvant treatment of hypertension. In this Review, we provide a summary of the epidemiological research supporting the preventive and antihypertensive effects of major lifestyle interventions (regular physical exercise, body weight management and healthy dietary patterns), as well as other less traditional recommendations such as stress management and the promotion of adequate sleep patterns coupled with circadian entrainment. We also discuss the physiological mechanisms underlying the beneficial effects of these lifestyle interventions on hypertension, which include not only the prevention of traditional risk factors (such as obesity and insulin resistance) and improvements in vascular health through an improved redox and inflammatory status, but also reduced sympathetic overactivation and non-traditional mechanisms such as increased secretion of myokines.
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Affiliation(s)
| | - Pedro Carrera-Bastos
- Centre for Primary Health Care Research, Lund University/Region Skane, Skane University Hospital, Malmö, Sweden
| | - Beatriz G Gálvez
- Faculty of Sport Sciences, Universidad Europea de Madrid, Madrid, Spain
| | - Gema Ruiz-Hurtado
- Research Institute of the Hospital Universitario 12 de Octubre (imas12), Madrid, Spain.,CIBER-CV, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - José M Ordovas
- Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University, Boston, MA, USA.,IMDEA Alimentacion, Madrid, Spain
| | - Luis M Ruilope
- Research Institute of the Hospital Universitario 12 de Octubre (imas12), Madrid, Spain.,CIBER-CV, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - Alejandro Lucia
- Faculty of Sport Sciences, Universidad Europea de Madrid, Madrid, Spain. .,Research Institute of the Hospital Universitario 12 de Octubre (imas12), Madrid, Spain.
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11
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Ulven SM, Holven KB, Rundblad A, Myhrstad MCW, Leder L, Dahlman I, de Mello VD, Schwab U, Carlberg C, Pihlajamäki J, Hermansen K, Dragsted LO, Gunnarsdottir I, Cloetens L, Åkesson B, Rosqvist F, Hukkanen J, Herzig KH, Savolainen MJ, Risérus U, Thorsdottir I, Poutanen KS, Arner P, Uusitupa M, Kolehmainen M. An Isocaloric Nordic Diet Modulates RELA and TNFRSF1A Gene Expression in Peripheral Blood Mononuclear Cells in Individuals with Metabolic Syndrome-A SYSDIET Sub-Study. Nutrients 2019; 11:nu11122932. [PMID: 31816875 PMCID: PMC6950764 DOI: 10.3390/nu11122932] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 11/22/2019] [Accepted: 11/27/2019] [Indexed: 01/22/2023] Open
Abstract
A healthy dietary pattern is associated with a lower risk of metabolic syndrome (MetS) and reduced inflammation. To explore this at the molecular level, we investigated the effect of a Nordic diet (ND) on changes in the gene expression profiles of inflammatory and lipid-related genes in peripheral blood mononuclear cells (PBMCs) of individuals with MetS. We hypothesized that the intake of an ND compared to a control diet (CD) would alter the expression of inflammatory genes and genes involved in lipid metabolism. The individuals with MetS underwent an 18/24-week randomized intervention to compare a ND with a CD. Eighty-eight participants (66% women) were included in this sub-study of the larger SYSDIET study. Fasting PBMCs were collected before and after the intervention and changes in gene expression levels were measured using TaqMan Array Micro Fluidic Cards. Forty-eight pre-determined inflammatory and lipid related gene transcripts were analyzed. The expression level of the gene tumor necrosis factor (TNF) receptor superfamily member 1A (TNFRSF1A) was down-regulated (p = 0.004), whereas the nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) subunit, RELAproto-oncogene, was up-regulated (p = 0.016) in the ND group compared to the CD group. In conclusion, intake of an ND in individuals with the MetS may affect immune function.
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Affiliation(s)
- Stine M. Ulven
- Department of Nutrition, Institute for Basic Medical Sciences, University of Oslo, 0317 Oslo, Norway; (K.B.H.); (A.R.)
- Correspondence: ; Tel.: +47-22840208
| | - Kirsten B. Holven
- Department of Nutrition, Institute for Basic Medical Sciences, University of Oslo, 0317 Oslo, Norway; (K.B.H.); (A.R.)
- National Advisory Unit for Familial Hypercholesterlemia, Department of Endocrinology, Morbid Obesity and Preventive Medicine, Oslo University Hospital, 0424 Oslo, Norway
| | - Amanda Rundblad
- Department of Nutrition, Institute for Basic Medical Sciences, University of Oslo, 0317 Oslo, Norway; (K.B.H.); (A.R.)
| | - Mari C. W. Myhrstad
- Department of Nursing and Health Promotion, Faculty of Health Sciences, OsloMet—Oslo Metropolitan University, 0130 Oslo, Norway;
| | - Lena Leder
- Mills AS, Sofienberggt. 19, 0558 Oslo, Norway;
| | - Ingrid Dahlman
- Department of Medicine (H7), Karolinska Institute, 17176 Stockholm, Sweden; (I.D.); (P.A.)
| | - Vanessa D. de Mello
- School of Medicine, Institute of Public Health and Clinical Nutrition, University of Eastern Finland, 70211 Kuopio, Finland; (V.D.d.M.); (U.S.); (J.P.); (K.S.P.); (M.U.); (M.K.)
| | - Ursula Schwab
- School of Medicine, Institute of Public Health and Clinical Nutrition, University of Eastern Finland, 70211 Kuopio, Finland; (V.D.d.M.); (U.S.); (J.P.); (K.S.P.); (M.U.); (M.K.)
- Department of Medicine, Endocrinology and Clinical Nutrition, Kuopio University Hospital, 70029 Kuopio, Finland
| | - Carsten Carlberg
- Institute of Biomedicine, University of Eastern Finland, 70211 Kuopio, Finland;
| | - Jussi Pihlajamäki
- School of Medicine, Institute of Public Health and Clinical Nutrition, University of Eastern Finland, 70211 Kuopio, Finland; (V.D.d.M.); (U.S.); (J.P.); (K.S.P.); (M.U.); (M.K.)
- Department of Medicine, Endocrinology and Clinical Nutrition, Kuopio University Hospital, 70029 Kuopio, Finland
| | - Kjeld Hermansen
- Department of Endocrinology and Internal Medicine, Department of Clinical Medicine, Aarhus University Hospital, Aarhus University, 8200 Aarhus, Denmark;
| | - Lars O. Dragsted
- Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, 2200 Copenhagen, Denmark;
| | - Ingibjörg Gunnarsdottir
- Unit for Nutrition Research, University of Iceland and Landspitali—The National University Hospital of Iceland, 101 Reykjavík, Iceland; (I.G.); (I.T.)
| | - Lieselotte Cloetens
- Biomedical Nutrition, Pure and Applied Biochemistry, Lund University, 221 00 Lund, Sweden; (L.C.); (B.Å.)
| | - Björn Åkesson
- Biomedical Nutrition, Pure and Applied Biochemistry, Lund University, 221 00 Lund, Sweden; (L.C.); (B.Å.)
- Department of Clinical Nutrition, Skåne University Hospital, 221 00 Lund, Sweden
| | - Fredrik Rosqvist
- Department of Public Health and Caring Sciences, Clinical Nutrition and Metabolism, Uppsala University, 751 22 Uppsala, Sweden; (F.R.); (U.R.)
| | - Janne Hukkanen
- Institute of Clinical Medicine, Department of Internal Medicine and Biocenter Oulu, University of Oulu, Medical Research Center, Oulu University Hospital, 90220 Oulu, Finland; (J.H.); (M.J.S.)
| | - Karl-Heinz Herzig
- Institute of Biomedicine, Biocenter of Oulu, Medical Research Center, Faculty of Medicine, University of Oulu, and Oulu University Hospital, 90220 Oulu, Finland;
- Department of Gastroenterology and Metabolism, Poznan University of Medical Sciences, 60572 Poznan, Poland
| | - Markku J Savolainen
- Institute of Clinical Medicine, Department of Internal Medicine and Biocenter Oulu, University of Oulu, Medical Research Center, Oulu University Hospital, 90220 Oulu, Finland; (J.H.); (M.J.S.)
| | - Ulf Risérus
- Department of Public Health and Caring Sciences, Clinical Nutrition and Metabolism, Uppsala University, 751 22 Uppsala, Sweden; (F.R.); (U.R.)
| | - Inga Thorsdottir
- Unit for Nutrition Research, University of Iceland and Landspitali—The National University Hospital of Iceland, 101 Reykjavík, Iceland; (I.G.); (I.T.)
| | - Kaisa S Poutanen
- School of Medicine, Institute of Public Health and Clinical Nutrition, University of Eastern Finland, 70211 Kuopio, Finland; (V.D.d.M.); (U.S.); (J.P.); (K.S.P.); (M.U.); (M.K.)
- VTT Technical Research Centre of Finland, 021100 Espoo, Finland
| | - Peter Arner
- Department of Medicine (H7), Karolinska Institute, 17176 Stockholm, Sweden; (I.D.); (P.A.)
| | - Matti Uusitupa
- School of Medicine, Institute of Public Health and Clinical Nutrition, University of Eastern Finland, 70211 Kuopio, Finland; (V.D.d.M.); (U.S.); (J.P.); (K.S.P.); (M.U.); (M.K.)
| | - Marjukka Kolehmainen
- School of Medicine, Institute of Public Health and Clinical Nutrition, University of Eastern Finland, 70211 Kuopio, Finland; (V.D.d.M.); (U.S.); (J.P.); (K.S.P.); (M.U.); (M.K.)
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12
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Association of proinflammatory genes expression with serum interleukin 1β and free fatty acids in metabolically healthy and unhealthy abdominally obese individuals: a case-control study. BMC Immunol 2019; 20:23. [PMID: 31272370 PMCID: PMC6611037 DOI: 10.1186/s12865-019-0303-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Accepted: 06/19/2019] [Indexed: 12/13/2022] Open
Abstract
Background Proinflammatory genes are highly expressed in several metabolic disorders associated with obesity. But it is not clarified whether gene expression levels and downstream inflammatory markers are related to the metabolic state or the presence of obesity. Hence, the present study aimed to compare Toll-Like Receptor 2 (TLR2), Myeloid Differentiation Factor 88 (MyD88), and NFĸB mRNA expression levels between metabolically healthy abdominally obese (MHAO) and metabolically unhealthy abdominally obese (MUAO) individuals. Results We compared mRNA expression levels of the genes as well as serum FFAs and IL-1β in MUAO (n = 36) and MHAO (n = 34) groups. Serum FBS, TG, and HDL-C in addition to systolic and diastolic blood pressure were significantly higher in MUAO than MHAO groups (p < 0.05). The odds of MUAO was significantly decreased with high HDL-C (OR = 0.22, 95%CI: 0.08–0.63) and increased with high FBS (OR = 7.04, 95%CI: 1.42–34.69) and TG (OR = 30.55, 95%CI: 7.48–60.67). There were no significant differences in proinflammatory genes as well as serum FFAs and IL-1β between the two groups. No associations were found between the genes expression and serum markers. However, NFĸB expression was significantly correlated with TLR2 and MyD88 (r = 0.747; p < 0.001). Significant correlations were also noticed between TLR2 and MyD88 expression as well as between serum FFAs and IL-1β in each group (p < 0.001). Conclusion Serum concentration of IL-1β, FFAs, and mRNA expression levels of TLR2, MyD88, and NFĸB may be resulted from abdominal obesity and not be related to the presence or absence of metabolic health.
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13
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Nordic Diet and Inflammation-A Review of Observational and Intervention Studies. Nutrients 2019; 11:nu11061369. [PMID: 31216678 PMCID: PMC6627927 DOI: 10.3390/nu11061369] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Revised: 06/07/2019] [Accepted: 06/14/2019] [Indexed: 12/21/2022] Open
Abstract
Low-grade inflammation (LGI) has been suggested to be involved in the development of chronic diseases. Healthy dietary patterns, such as the Mediterranean diet (MD), may decrease the markers of LGI. Healthy Nordic diet (HND) has many similarities with MD, but its effects on LGI are less well known. Both of these dietary patterns emphasize the abundant use of fruits and vegetables (and berries in HND), whole grain products, fish, and vegetable oil (canola oil in HND and olive oil in MD), but restrict the use of saturated fat and red and processed meat. The aim of this narrative review is to summarize the results of studies, which have investigated the associations or effects of HND on the markers of LGI. Altogether, only two publications of observational studies and eight publications of intervention trials were found through the literature search. Both observational studies reported an inverse association between the adherence to HND and concentration of high sensitivity C-reactive protein (hsCRP). A significant decrease in the concentration of hsCRP was reported in two out of four intervention studies measuring hsCRP. Single intervention studies reported the beneficial effects on interleukin 1Ra and Cathepsin S. Current evidence suggests the beneficial effects on LGI with HND, but more carefully controlled studies are needed to confirm the anti-inflammatory effects of the HND.
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14
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Cimini FA, Arena A, Barchetta I, Tramutola A, Ceccarelli V, Lanzillotta C, Fontana M, Bertoccini L, Leonetti F, Capoccia D, Silecchia G, Di Cristofano C, Chiappetta C, Di Domenico F, Baroni MG, Perluigi M, Cavallo MG, Barone E. Reduced biliverdin reductase-A levels are associated with early alterations of insulin signaling in obesity. Biochim Biophys Acta Mol Basis Dis 2019; 1865:1490-1501. [PMID: 30826467 DOI: 10.1016/j.bbadis.2019.02.021] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Revised: 02/11/2019] [Accepted: 02/26/2019] [Indexed: 12/14/2022]
Abstract
Biliverdin reductase-A (BVR-A) is a serine/threonine/tyrosine kinase involved in the regulation of insulin signaling. In vitro studies have demonstrated that BVR-A is a substrate of the insulin receptor and regulates IRS1 by avoiding its aberrant activation, and in animal model of obesity the loss of hepatic BVR-A has been associated with glucose/insulin alterations and fatty liver disease. However, no studies exist in humans. Here, we evaluated BVR-A expression levels and activation in peripheral blood mononuclear cells (PBMC) from obese subjects and matched lean controls and we investigated the related molecular alterations of the insulin along with clinical correlates. We showed that BVR-A levels are significantly reduced in obese subjects and associated with a hyper-activation of the IR/IRS1/Akt/GSK-3β/AS160/GLUT4 pathway. Low BVR-A levels also associate with the presence of obesity, metabolic syndrome, NASH and visceral adipose tissue inflammation. These data suggest that the reduction of BVR-A may be responsible for early alterations of the insulin signaling pathway in obesity and in this context may represent a novel molecular target to be investigated for the comprehension of the process of insulin resistance development in obesity.
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Affiliation(s)
- Flavia Agata Cimini
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - Andrea Arena
- Department of Biochemical Sciences "A. Rossi-Fanelli" Sapienza University of Rome, Rome, Italy
| | - Ilaria Barchetta
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - Antonella Tramutola
- Department of Biochemical Sciences "A. Rossi-Fanelli" Sapienza University of Rome, Rome, Italy
| | | | - Chiara Lanzillotta
- Department of Biochemical Sciences "A. Rossi-Fanelli" Sapienza University of Rome, Rome, Italy
| | - Mario Fontana
- Department of Biochemical Sciences "A. Rossi-Fanelli" Sapienza University of Rome, Rome, Italy
| | - Laura Bertoccini
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - Frida Leonetti
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - Danila Capoccia
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - Gianfranco Silecchia
- Department of Medical-Surgical Sciences and Bio-Technologies, Sapienza University of Rome, Rome, Italy
| | - Claudio Di Cristofano
- Department of Medical-Surgical Sciences and Bio-Technologies, Sapienza University of Rome, Rome, Italy
| | - Caterina Chiappetta
- Department of Medical-Surgical Sciences and Bio-Technologies, Sapienza University of Rome, Rome, Italy
| | - Fabio Di Domenico
- Department of Biochemical Sciences "A. Rossi-Fanelli" Sapienza University of Rome, Rome, Italy
| | | | - Marzia Perluigi
- Department of Biochemical Sciences "A. Rossi-Fanelli" Sapienza University of Rome, Rome, Italy
| | | | - Eugenio Barone
- Department of Biochemical Sciences "A. Rossi-Fanelli" Sapienza University of Rome, Rome, Italy.
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15
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Steckling FM, Farinha JB, Figueiredo FDC, Santos DLD, Bresciani G, Kretzmann NA, Stefanello ST, Courtes AA, Beck MDO, Sangoi Cardoso M, Duarte MMMF, Moresco RN, Soares FAA. High-intensity interval training improves inflammatory and adipokine profiles in postmenopausal women with metabolic syndrome. Arch Physiol Biochem 2019; 125:85-91. [PMID: 29431478 DOI: 10.1080/13813455.2018.1437750] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
This study investigate the effects of high-intensity interval training (HIIT) on systemic levels of inflammatory and hormonal markers in postmenopausal women with metabolic syndrome (MS). Fifteen postmenopausal women with MS completed the training on treadmills. Functional, body composition parameters, maximal oxygen uptake (VO2max), and lipid profile were assessed before and after HIIT. Serum or plasma levels of cytokines and hormonal markers were measured along the intervention. The analysis of messenger RNA (mRNA) expression of these cytokines was performed in peripheral blood mononuclear cells (PBMC). VO2max and some anthropometric parameters were improved after HIIT, while decreased levels of proinflammatory markers and increased levels of interleukin-10 (IL-10) were also found. Adipokines were also modulated after 12 weeks or training. The mRNA expression of the studied genes was unchanged after HIIT. In conclusion, HIIT benefits inflammatory and hormonal axis on serum or plasma samples, without changes on PBMC of postmenopausal MS patients.
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Affiliation(s)
- Flávia Mariel Steckling
- a Departamento de Métodos e Técnicas Desportivas, Centro de Educação Física e Desportos , Universidade Federal de Santa Maria , Santa Maria , Brazil
- b Departamento de Bioquímica e Biologia Molecular, Centro de Ciências Naturais e Exatas , Universidade Federal de Santa Maria , Santa Maria , Brazil
| | - Juliano Boufleur Farinha
- a Departamento de Métodos e Técnicas Desportivas, Centro de Educação Física e Desportos , Universidade Federal de Santa Maria , Santa Maria , Brazil
- c Escola de Educação Física, Fisioterapia e Dança , Universidade Federal do Rio Grande do Sul , Porto Alegre , Brazil
| | - Felipe da Cunha Figueiredo
- a Departamento de Métodos e Técnicas Desportivas, Centro de Educação Física e Desportos , Universidade Federal de Santa Maria , Santa Maria , Brazil
| | - Daniela Lopes Dos Santos
- a Departamento de Métodos e Técnicas Desportivas, Centro de Educação Física e Desportos , Universidade Federal de Santa Maria , Santa Maria , Brazil
| | - Guilherme Bresciani
- d Grupo de Investigación en Rendimiento Físico y Salud (IRyS), Escuela de Educación Física , Pontificia Universidad Católica de Valparaiso , Valparaiso , Chile
| | | | - Sílvio Terra Stefanello
- b Departamento de Bioquímica e Biologia Molecular, Centro de Ciências Naturais e Exatas , Universidade Federal de Santa Maria , Santa Maria , Brazil
| | - Aline Alves Courtes
- b Departamento de Bioquímica e Biologia Molecular, Centro de Ciências Naturais e Exatas , Universidade Federal de Santa Maria , Santa Maria , Brazil
| | - Maristela de Oliveira Beck
- f Departamento de Pós-Graduação Multiprofissional em Ciências da Saúde, Centro de Ciências da Saúde , Universidade Federal de Santa Maria , Santa Maria , Brazil
| | - Manuela Sangoi Cardoso
- g Departamento de Análises Clinicas e Toxicológicas, Centro de Ciências da Saúde , Universidade Federal de Santa Maria , Santa Maria , Brazil
| | | | - Rafael Noal Moresco
- g Departamento de Análises Clinicas e Toxicológicas, Centro de Ciências da Saúde , Universidade Federal de Santa Maria , Santa Maria , Brazil
| | - Félix Alexandre Antunes Soares
- b Departamento de Bioquímica e Biologia Molecular, Centro de Ciências Naturais e Exatas , Universidade Federal de Santa Maria , Santa Maria , Brazil
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16
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Serum profile of cytokines and their genetic variants in metabolic syndrome and healthy subjects: a comparative study. Biosci Rep 2019; 39:BSR20181202. [PMID: 30635365 PMCID: PMC6356053 DOI: 10.1042/bsr20181202] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Revised: 11/19/2018] [Accepted: 01/01/2019] [Indexed: 12/18/2022] Open
Abstract
AIM To identify genetic variants in promoter areas of IL-6 -174 G>C and TNF-α -308 G>A in metabolic syndrome (Met S) and controls and associate them with Met S and serum cytokine levels.It was a cross-sectional study, including 224 cases of Met S and 200 controls. A fasting blood sample was taken and biochemical parameters including serum glucose, insulin, lipid profile, interleukin-6 (IL-6) and tumor necrosis factor α (TNF-α) were measured. Restriction fragment length polymorphism was used to identify the genetic variants of IL-6 and TNF-α. Serum levels of IL-6 and TNF-α and insulin resistance were significantly higher in cases than the controls. IL-6 showed significant positive correlation with HOMA-IR and TNF-α. CC genotype of IL-6 was associated with the increased risk of Met S (P=0.016, OR for CC vs GC+GG = 2.33, CI: 1.15-4.71). There was no significant difference of TNF-α genotypes between the cases and the controls. Serum TNF-α and IL-6 levels were significantly higher in AA and CC genotypes of TNF-α (-308 G>A) and IL-6 (-174 G>C) as compared with the GG (P=0.00 and P=0.001). Significant correlation of IL-6 with TNF-α and insulin resistance was observed that may provide us a therapeutic target for preventing metabolic derangements from insulin resistance.
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17
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Dietary weight loss intervention improves subclinical atherosclerosis and oxidative stress markers in leukocytes of obese humans. Int J Obes (Lond) 2019; 43:2200-2209. [PMID: 30622308 DOI: 10.1038/s41366-018-0309-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Revised: 11/09/2018] [Accepted: 12/06/2018] [Indexed: 02/06/2023]
Abstract
BACKGROUND The relationship between caloric restriction-mediated weight loss and the generation of ROS and its effects on atherosclerotic markers in obesity is not fully understood. Therefore, we set out to investigate whether dietary weight loss intervention improves markers of oxidative stress in leukocytes and subclinical parameters of atherosclerosis. SUBJECTS AND METHODS This was an interventional study of 59 obese subjects (BMI > 35 kg/m2) who underwent 6 months of dietary therapy, including a 6-week very-low-calorie diet (VLCD) followed by an 18-week low-calorie diet (LCD). We determined clinical parameters, inflammatory markers-hsCRP, TNFα and NFκB -, oxidative stress parameters-total superoxide, glutathione, catalase activity and protein carbonyl groups-, soluble cellular adhesion molecules-sICAM, sP-selectin, sPSGL-1 -, myeloperoxidase (MPO), leukocyte-endothelium cell interactions-rolling flux, velocity and adhesion-and LDL subfractions, before and after the dietary intervention. RESULTS After losing weight, an improvement was observed in the patients' anthropometric, blood pressure and metabolic parameters, and was associated with reduced inflammatory response (hsCRP, TNFα and NFκB). Oxidative stress parameters improved, since superoxide production and protein carbonyl content were reduced and antioxidant systems were enhanced. In addition, a significant reduction of subclinical markers of atherosclerosis-small and dense LDL particles, MPO, sP-selectin and leukocyte adhesion-and an increase in soluble PSGL-1 were reported. CONCLUSIONS Our findings reveal that the improvement of subclinical atherosclerotic markers after dietary weight loss intervention is associated with a reduction of oxidative stress in leukocytes and inflammatory pathways, suggesting that these are the underlying mechanisms responsible for the reduced risk of cardiovascular disease in obese subjects after losing weight.
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18
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Bianchi VE. Weight loss is a critical factor to reduce inflammation. Clin Nutr ESPEN 2018; 28:21-35. [DOI: 10.1016/j.clnesp.2018.08.007] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Accepted: 08/14/2018] [Indexed: 01/14/2023]
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19
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Sun D, Heianza Y, Li X, Shang X, Smith SR, Bray GA, Sacks FM, Qi L. Genetic, epigenetic and transcriptional variations at NFATC2IP locus with weight loss in response to diet interventions: The POUNDS Lost Trial. Diabetes Obes Metab 2018; 20:2298-2303. [PMID: 29693310 PMCID: PMC6105429 DOI: 10.1111/dom.13333] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2018] [Revised: 04/12/2018] [Accepted: 04/19/2018] [Indexed: 01/06/2023]
Abstract
DNA Methylation of NFATC2IP was recently identified as being causally related to body mass index. The present study aimed to examine the roles of the genetic variation, methylation and gene expression at this locus in adiposity changes in a 2-year weight-loss trial. Participants (n = 692) were genotyped and randomly assigned to 1 of the 4 reduced-calorie diets, DNA methylation was derived from stored blood samples at baseline (n = 48), and adipose tissue gene expression was measured in 96 volunteers. We found significant interactions of fat intake with the genetic (rs11150675) and transcriptional (ILMN_1725441) variations at the NFATC2IP locus on 2-year weight change (Pinteraction < .01). Similarly, cis-DNA methylation at cg26663590 of the NFATC2IP locus showed an opposite impact on weight-loss in response to high-fat vs low-fat diet (effect size, 4.62 vs -1.24 kg). Additionally, baseline methylation at cg26663590 causally mediated 52.8% of the effect of rs11150675 on 2-year weight-loss in the high-fat diet group (P = .01), whereas no such mediation was observed in the low-fat diet group. Our findings suggest potentially causal effects of genetic, epigenetic and transcriptional variations at the NFATC2IP locus on adiposity changes in response to dietary fat intake.
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Affiliation(s)
- Dianjianyi Sun
- Department of Epidemiology, School of Public Health and Tropical Medicine, Tulane University, New Orleans, LA
| | - Yoriko Heianza
- Department of Epidemiology, School of Public Health and Tropical Medicine, Tulane University, New Orleans, LA
| | - Xiang Li
- Department of Epidemiology, School of Public Health and Tropical Medicine, Tulane University, New Orleans, LA
| | | | - Steven R. Smith
- Translational Research Institute (TRI), Florida Hospital, Orlando, FL
| | - George A. Bray
- Pennington Biomedical Research Center/LSU, Baton Rouge, LA, USA
| | - Frank M. Sacks
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA
| | - Lu Qi
- Department of Epidemiology, School of Public Health and Tropical Medicine, Tulane University, New Orleans, LA
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA
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20
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Macías-González M, Martín-Núñez GM, Garrido-Sánchez L, García-Fuentes E, Tinahones FJ, Morcillo S. Decreased blood pressure is related to changes in NF-kB promoter methylation levels after bariatric surgery. Surg Obes Relat Dis 2018; 14:1327-1334. [PMID: 30057095 DOI: 10.1016/j.soard.2018.06.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Revised: 05/14/2018] [Accepted: 06/01/2018] [Indexed: 12/13/2022]
Abstract
BACKGROUND Obesity is characterized by a chronic, low-grade inflammation, and bariatric surgery is proposed as an effective treatment for reducing the obesity-related co-morbidities. Epigenetic modifications could be involved in the metabolic improvement after surgery. OBJECTIVE The main aim of this study was to evaluate whether DNA methylation pattern from genes related to inflammation and insulin response is associated with the metabolic improvement after bariatric surgery in morbidly obese patients and if these changes depend on the surgical procedure. SETTING University hospital, Spain. METHODS We studied 60 severely obese patients; 31 underwent Roux-en-Y gastric bypass and 29 underwent laparoscopic sleeve gastrectomy. All patients were examined before and at 6 months after bariatric surgery. DNA methylation profile of genes related to the inflammatory response and insulin sensitivity was measured by pyrosequencing. RESULTS The promoter methylation levels of the NFKB1 gene were increased significantly after surgery (2.16 ± .9 versus 2.8 ± 1.03). The decrease in blood pressure, both systolic and diastolic, after surgery was significantly associated with the changes in the promoter methylation levels of the NFKB1 gene (β = -.513, P = .003 and β = -.543, P = .004, respectively). A decrease in inflammation status, measured by high sensitivity C-reactive protein values, was associated with changes in SLC19A1 methylation levels. CONCLUSION Our study shows for the first time an association between NFKB1 methylation levels and blood pressure after bariatric surgery, highlighting the possible function of this gene in the regulation of arterial pressure. Regarding SLC19A1, this gene could position as a potential target linking inflammation and insulin resistance.
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Affiliation(s)
- Manuel Macías-González
- Unidad de Gestión Clínica de Endocrinología y Nutrición, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Clínico Virgen de la Victoria, Málaga, Spain; CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Málaga, Spain
| | - Gracia María Martín-Núñez
- Unidad de Gestión Clínica de Endocrinología y Nutrición, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Clínico Virgen de la Victoria, Málaga, Spain; CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Málaga, Spain
| | - Lourdes Garrido-Sánchez
- Unidad de Gestión Clínica de Endocrinología y Nutrición, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Clínico Virgen de la Victoria, Málaga, Spain; CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Málaga, Spain
| | - Eduardo García-Fuentes
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Málaga, Spain; Unidad de Gestión Clínica de Aparato Digestivo, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Clínico Virgen de la Victoria, Málaga, Spain
| | - Francisco José Tinahones
- Unidad de Gestión Clínica de Endocrinología y Nutrición, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Clínico Virgen de la Victoria, Málaga, Spain; CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Málaga, Spain.
| | - Sonsoles Morcillo
- Unidad de Gestión Clínica de Endocrinología y Nutrición, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Clínico Virgen de la Victoria, Málaga, Spain; CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Málaga, Spain
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Liang H, Lum H, Alvarez A, Garduno-Garcia JDJ, Daniel BJ, Musi N. A low dose lipid infusion is sufficient to induce insulin resistance and a pro-inflammatory response in human subjects. PLoS One 2018; 13:e0195810. [PMID: 29649324 PMCID: PMC5897027 DOI: 10.1371/journal.pone.0195810] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Accepted: 02/12/2018] [Indexed: 01/04/2023] Open
Abstract
Objective The root cause behind the low-grade inflammatory state seen in insulin resistant (obesity and type 2 diabetes) states is unclear. Insulin resistant subjects have elevations in plasma free fatty acids (FFA), which are ligands for the pro-inflammatory toll-like receptor (TLR)4 pathway. We tested the hypothesis that an experimental elevation in plasma FFA (within physiological levels) in lean individuals would upregulate TLR4 and activate downstream pathways (e.g., MAPK) in circulating monocytes. Research design and methods Twelve lean, normal glucose-tolerant subjects received a low dose (30 ml/h) 48 h lipid or saline infusion on two different occasions. Monocyte TLR4 protein level, MAPK phosphorylation, and expression of genes in the TLR pathway were determined before and after each infusion. Results The lipid infusion significantly increased monocyte TLR4 protein and phosphorylation of JNK and p38 MAPK. Lipid-mediated increases in TLR4 and p38 phosphorylation directly correlated with reduced peripheral insulin sensitivity (M value). Lipid increased levels of multiple genes linked to inflammation, including several TLRs, CD180, MAP3K7, and CXCL10. Monocytes exposed in vivo to lipid infusion exhibited enhanced in vitro basal and LPS-stimulated IL-1β secretion. Conclusions In lean subjects, a small increase in plasma FFA (as seen in insulin resistant subjects) is sufficient to upregulate TLR4 and stimulate inflammatory pathways (MAPK) in monocytes. Moreover, lipids prime monocytes to endotoxin. We provide proof-of-concept data in humans indicating that the low-grade inflammatory state characteristic of obesity and type 2 diabetes could be caused (at least partially) by pro-inflammatory monocytes activated by excess lipids present in these individuals.
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Affiliation(s)
- Hanyu Liang
- Barshop Institute of Longevity and Aging Studies, UT Health San Antonio, San Antonio, Texas, United States of America
- Department of Medicine-Diabetes Division, UT Health San Antonio, San Antonio, Texas, United States of America
- Geriatric Research Education and Clinical Center, Audie L. Murphy VA Medical Center, San Antonio, Texas, United States of America
| | - Helen Lum
- Barshop Institute of Longevity and Aging Studies, UT Health San Antonio, San Antonio, Texas, United States of America
- Department of Medicine-Diabetes Division, UT Health San Antonio, San Antonio, Texas, United States of America
- Geriatric Research Education and Clinical Center, Audie L. Murphy VA Medical Center, San Antonio, Texas, United States of America
| | - Andrea Alvarez
- Department of Medicine-Diabetes Division, UT Health San Antonio, San Antonio, Texas, United States of America
| | | | - Benjamin J. Daniel
- Department of Microbiology, UT Health San Antonio, San Antonio, Texas, United States of America
| | - Nicolas Musi
- Barshop Institute of Longevity and Aging Studies, UT Health San Antonio, San Antonio, Texas, United States of America
- Department of Medicine-Diabetes Division, UT Health San Antonio, San Antonio, Texas, United States of America
- Geriatric Research Education and Clinical Center, Audie L. Murphy VA Medical Center, San Antonio, Texas, United States of America
- * E-mail:
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Schwab US, Lankinen MA, de Mello VD, Manninen SM, Kurl S, Pulkki KJ, Laaksonen DE, Erkkilä AT. Camelina Sativa Oil, but not Fatty Fish or Lean Fish, Improves Serum Lipid Profile in Subjects with Impaired Glucose Metabolism-A Randomized Controlled Trial. Mol Nutr Food Res 2018; 62. [DOI: 10.1002/mnfr.201700503] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Revised: 12/11/2017] [Indexed: 01/13/2023]
Affiliation(s)
- Ursula S. Schwab
- Institute of Public Health and Clinical Nutrition; University of Eastern Finland; Kuopio Finland
- Internal Medicine; Institute of Clinical Medicine; Kuopio University Hospital; Kuopio Finland
| | - Maria A. Lankinen
- Institute of Public Health and Clinical Nutrition; University of Eastern Finland; Kuopio Finland
| | - Vanessa D. de Mello
- Institute of Public Health and Clinical Nutrition; University of Eastern Finland; Kuopio Finland
| | - Suvi M. Manninen
- Institute of Public Health and Clinical Nutrition; University of Eastern Finland; Kuopio Finland
| | - Sudhir Kurl
- Institute of Public Health and Clinical Nutrition; University of Eastern Finland; Kuopio Finland
| | - Kari J. Pulkki
- Clinical Chemistry; Institute of Clinical Medicine; University of Eastern Finland; Kuopio Finland
- Eastern Finland Laboratory Centre (ISLAB); Kuopio Finland
| | - David E. Laaksonen
- Internal Medicine; Institute of Clinical Medicine; Kuopio University Hospital; Kuopio Finland
- Institute of Biomedicine; University of Eastern Finland; Kuopio Finland
| | - Arja T. Erkkilä
- Institute of Public Health and Clinical Nutrition; University of Eastern Finland; Kuopio Finland
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Cheng S, Liang S, Liu Q, Deng Z, Zhang Y, Du J, Zhang Y, Li S, Cheng B, Ling C. Diosgenin prevents high-fat diet-induced rat non-alcoholic fatty liver disease through the AMPK and LXR signaling pathways. Int J Mol Med 2017; 41:1089-1095. [PMID: 29207101 DOI: 10.3892/ijmm.2017.3291] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Accepted: 11/09/2017] [Indexed: 11/06/2022] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) is a major public health concern worldwide. The aim of the present study was to observe the effect of diosgenin on NAFLD and investigate the underlying mechanisms. Diosgenin treatment increased the phosphorylation of AMP-activated protein kinase (AMPK) and acetyl-CoA carboxylase (ACC) in HepG2 cells. Diosgenin significantly inhibited high glucose (HG)-induced triglyceride (TG) accumulation and sterol regulatory element‑binding protein-1c (SREBP-1c) mRNA increase in HepG2 cells, which were partially abolished by the AMPK inhibitor compound C. Diosgenin also significantly inhibited the increase of liver X receptor (LXR) α mRNA induced by HG or T0901317. However, T0901317‑induced upregulation of LXRα and SREBP-1c mRNA was not blocked by compound C. Following a high-fat diet for 16 weeks, the body and liver weights of the experimental rats were significantly increased, but this effect was significantly suppressed by diosgenin. Diosgenin and fenofibrate ameliorated lipid deposition in the liver and reduced the increase of hepatic TG content. Diosgenin significantly decreased the alanine aminotransferase (ALT) level, whereas fenofibrate significantly increased the ALT and aspartate aminotransferase levels. Diosgenin also increased AMPK and ACC phosphorylation and suppressed LXRα in the liver. In conclusion, the results of the present study suggested that diosgenin is a potential agent for preventing the development of NAFLD through the AMPK and LXR signaling pathways.
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Affiliation(s)
- Silu Cheng
- Department of Traditional Chinese Medicine, Changhai Hospital, The Second Military Medical University, Shanghai 200433, P.R. China
| | - Shufang Liang
- Department of Traditional Chinese Medicine, Changhai Hospital, The Second Military Medical University, Shanghai 200433, P.R. China
| | - Qun Liu
- Department of Traditional Chinese Medicine, Changhai Hospital, The Second Military Medical University, Shanghai 200433, P.R. China
| | - Zhengting Deng
- Department of Traditional Chinese Medicine, Changhai Hospital, The Second Military Medical University, Shanghai 200433, P.R. China
| | - Yuanhui Zhang
- Department of Traditional Chinese Medicine, Changhai Hospital, The Second Military Medical University, Shanghai 200433, P.R. China
| | - Juan Du
- Department of Traditional Chinese Medicine, Changhai Hospital, The Second Military Medical University, Shanghai 200433, P.R. China
| | - Ya'ni Zhang
- Department of Traditional Chinese Medicine, Changhai Hospital, The Second Military Medical University, Shanghai 200433, P.R. China
| | - Shu Li
- Department of Gastroenterology, Baoshan Branch, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 201900, P.R. China
| | - Binbin Cheng
- Department of Traditional Chinese Medicine, Changhai Hospital, The Second Military Medical University, Shanghai 200433, P.R. China
| | - Changquan Ling
- Department of Traditional Chinese Medicine, Changhai Hospital, The Second Military Medical University, Shanghai 200433, P.R. China
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24
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Matulewicz N, Stefanowicz M, Nikolajuk A, Karczewska-Kupczewska M. Markers of Adipogenesis, but Not Inflammation, in Adipose Tissue Are Independently Related to Insulin Sensitivity. J Clin Endocrinol Metab 2017. [PMID: 28633482 DOI: 10.1210/jc.2017-00597] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
CONTEXT In obesity, adipose tissue (AT) undergoes dynamic remodeling, including an alternation in adipogenesis, AT-resident cell content, angiogenesis, and turnover of extracellular matrix (ECM) components. Studies of AT in humans have been carried out mostly in people with severe metabolic abnormalities, like type 2 diabetes or morbid obesity. OBJECTIVE The purpose of this study was to investigate subcutaneous AT gene expression of markers of adipogenesis, ECM remodeling, and inflammation in young, healthy, overweight or obese subjects. DESIGN The study group comprised 83 normal-weight, 48 overweight, and 19 obese subjects. Euglycemic hyperinsulinemic clamp, biopsy of subcutaneous AT, and isolation of peripheral blood mononuclear cells (PBMCs) were performed. Gene expression was measured with real-time polymerase chain reaction. RESULTS Overweight/obese subjects had lower AT expression of markers of adipogenesis, insulin signaling, and angiogenesis; higher expression of markers of ECM remodeling; altered expression of genes of the nuclear factor-κ-B (NFκB), but not c-Jun NH2-terminal kinase, pathway; and higher expression of macrophage markers but not markers of other immune cells. In multiple regression analysis, the expression of CEBPA, ADIPOQ, IRS1, IRS2, SLC2A4, and MMP9 was associated with insulin sensitivity independently of body mass index. No differences were found in inflammatory-gene PBMC expression. CONCLUSION Overweight/obesity is associated with altered expression of genes of adipogenesis, insulin signaling, ECM remodeling, and inflammation. NFκB seems to be the earliest inflammatory pathway altered at the transcriptional level in AT. Macrophages seem to be the first immune cells to infiltrate AT. Adipogenesis and ECM remodeling are the initial processes in AT that are independently associated with insulin sensitivity.
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Affiliation(s)
- Natalia Matulewicz
- Department of Metabolic Diseases, Medical University of Bialystok, Poland
| | | | - Agnieszka Nikolajuk
- Department of Prophylaxis of Metabolic Diseases, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Olsztyn, Poland
| | - Monika Karczewska-Kupczewska
- Department of Metabolic Diseases, Medical University of Bialystok, Poland
- Department of Prophylaxis of Metabolic Diseases, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Olsztyn, Poland
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Leder L, Kolehmainen M, Narverud I, Dahlman I, Myhrstad MCW, de Mello VD, Paananen J, Carlberg C, Schwab U, Herzig KH, Cloetens L, Storm MU, Hukkanen J, Savolainen MJ, Rosqvist F, Hermansen K, Dragsted LO, Gunnarsdottir I, Thorsdottir I, Risérus U, Åkesson B, Thoresen M, Arner P, Poutanen KS, Uusitupa M, Holven KB, Ulven SM. Effects of a healthy Nordic diet on gene expression changes in peripheral blood mononuclear cells in response to an oral glucose tolerance test in subjects with metabolic syndrome: a SYSDIET sub-study. GENES AND NUTRITION 2016; 11:3. [PMID: 27482295 PMCID: PMC4959556 DOI: 10.1186/s12263-016-0521-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2015] [Accepted: 01/15/2016] [Indexed: 11/22/2022]
Abstract
Background Diet has a great impact on the risk of developing features of metabolic syndrome (MetS), type 2 diabetes mellitus (T2DM), and cardiovascular diseases (CVD). We evaluated whether a long-term healthy Nordic diet (ND) can modify the expression of inflammation and lipid metabolism-related genes in peripheral blood mononuclear cells (PBMCs) during a 2-h oral glucose tolerance test (OGTT) in individuals with MetS. Methods A Nordic multicenter randomized dietary study included subjects (n = 213) with MetS, randomized to a ND group or a control diet (CD) group applying an isocaloric study protocol. In this sub-study, we included subjects (n = 89) from three Nordic centers: Kuopio (n = 26), Lund (n = 30), and Oulu (n = 33) with a maximum weight change of ±4 kg, high-sensitivity C-reactive protein concentration ≤10 mg L−1, and baseline body mass index <39 kg m−2. PBMCs were isolated, and the mRNA gene expression analysis was measured by quantitative real-time polymerase chain reaction (qPCR). We analyzed the mRNA expression changes of 44 genes before and after a 2hOGTT at the beginning and the end of the intervention. Results The healthy ND significantly down-regulated the expression of toll-like receptor 4 (TLR4), interleukin 18 (IL18), and thrombospondin receptor (CD36) mRNA transcripts and significantly up-regulated the expression of peroxisome proliferator-activated receptor delta (PPARD) mRNA transcript after the 2hOGTT compared to the CD. Conclusions A healthy ND is able to modify the gene expression in PBMCs after a 2hOGTT. However, more studies are needed to clarify the biological and clinical relevance of these findings. Electronic supplementary material The online version of this article (doi:10.1186/s12263-016-0521-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Lena Leder
- Department of Nutrition, Institute of Basic Medical Sciences, University of Oslo, P.O. Box 1046, Blindern, 0317 Oslo Norway
| | - Marjukka Kolehmainen
- Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio, Finland
| | - Ingunn Narverud
- Department of Nutrition, Institute of Basic Medical Sciences, University of Oslo, P.O. Box 1046, Blindern, 0317 Oslo Norway
| | - Ingrid Dahlman
- Department of Medicine (H7), Karolinska Institute, Stockholm, Sweden
| | - Mari C W Myhrstad
- Department of Health, Nutrition and Management, Faculty of Health Sciences, Oslo and Akershus University College of Applied Sciences, Oslo, Norway
| | - Vanessa D de Mello
- Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio, Finland
| | - Jussi Paananen
- Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio, Finland
| | - Carsten Carlberg
- Institute of Biomedicine, University of Eastern Finland, Kuopio, Finland
| | - Ursula Schwab
- Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio, Finland ; Institute of Clinical Medicine, Internal Medicine, Kuopio University Hospital, Kuopio, Finland
| | - Karl-Heinz Herzig
- Institute of Biomedicine and Biocenter of Oulu, Medical Research Centre Oulu, Oulu, Finland ; Department of Gastroenterology and Metabolism, Poznan University of Medical Sciences, Poznan, Poland
| | - Lieselotte Cloetens
- Biomedical Nutrition, Pure and Applied Biochemistry, Lund University, Lund, Sweden
| | - Matilda Ulmius Storm
- Biomedical Nutrition, Pure and Applied Biochemistry, Lund University, Lund, Sweden
| | - Janne Hukkanen
- Biocenter Oulu, University of Oulu, Oulu, Finland ; Institute of Clinical Medicine, Department of Internal Medicine, University of Oulu, Oulu, Finland ; Medical Research Center Oulu, Oulu University Hospital and University of Oulu, Oulu, Finland
| | - Markku J Savolainen
- Biocenter Oulu, University of Oulu, Oulu, Finland ; Institute of Clinical Medicine, Department of Internal Medicine, University of Oulu, Oulu, Finland ; Medical Research Center Oulu, Oulu University Hospital and University of Oulu, Oulu, Finland
| | - Fredrik Rosqvist
- Department of Public Health and Caring Sciences, Clinical Nutrition and Metabolism, Uppsala University, Uppsala, Sweden
| | - Kjeld Hermansen
- Department of Endocrinology and Internal Medicine, Aarhus University Hospital, Aarhus, Denmark
| | - Lars O Dragsted
- Department of Nutrition, Exercise and Sport, University of Copenhagen, Copenhagen, Denmark
| | - Ingibjörg Gunnarsdottir
- Unit for Nutrition Research, University of Iceland and Landspitali - The National University Hospital of Iceland, Reykjavik, Iceland
| | - Inga Thorsdottir
- Unit for Nutrition Research, University of Iceland and Landspitali - The National University Hospital of Iceland, Reykjavik, Iceland
| | - Ulf Risérus
- Department of Public Health and Caring Sciences, Clinical Nutrition and Metabolism, Uppsala University, Uppsala, Sweden
| | - Björn Åkesson
- Biomedical Nutrition, Pure and Applied Biochemistry, Lund University, Lund, Sweden ; Department of Clinical Nutrition, Skåne University Hospital, Lund, Sweden
| | - Magne Thoresen
- Department of Biostatistics, University of Oslo, Oslo, Norway
| | - Peter Arner
- Department of Medicine (H7), Karolinska Institute, Stockholm, Sweden
| | - Kaisa S Poutanen
- Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio, Finland
| | - Matti Uusitupa
- Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio, Finland ; Research Unit, Kuopio University Hospital, Kuopio, Finland
| | - Kirsten B Holven
- Department of Nutrition, Institute of Basic Medical Sciences, University of Oslo, P.O. Box 1046, Blindern, 0317 Oslo Norway ; Norwegian National Advisory Unit on Familial Hypercholesterolemia, Department of Endocrinology, Morbid Obesity and Preventive Medicine, Oslo University Hospital, Oslo, Norway
| | - Stine M Ulven
- Department of Nutrition, Institute of Basic Medical Sciences, University of Oslo, P.O. Box 1046, Blindern, 0317 Oslo Norway ; Department of Health, Nutrition and Management, Faculty of Health Sciences, Oslo and Akershus University College of Applied Sciences, Oslo, Norway
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Semlitsch T, Jeitler K, Berghold A, Horvath K, Posch N, Poggenburg S, Siebenhofer A. Long-term effects of weight-reducing diets in people with hypertension. Cochrane Database Syst Rev 2016; 3:CD008274. [PMID: 26934541 PMCID: PMC7154764 DOI: 10.1002/14651858.cd008274.pub3] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
BACKGROUND All major guidelines for antihypertensive therapy recommend weight loss. Thus dietary interventions that aim to reduce body weight might be a useful intervention to reduce blood pressure and adverse cardiovascular events associated with hypertension. OBJECTIVES Primary objectivesTo assess the long-term effects of weight-reducing diets in people with hypertension on all-cause mortality, cardiovascular morbidity, and adverse events (including total serious adverse events, withdrawal due to adverse events, and total non-serious adverse events). Secondary objectivesTo assess the long-term effects of weight-reducing diets in people with hypertension on change from baseline in systolic blood pressure, change from baseline in diastolic blood pressure, and body weight reduction. SEARCH METHODS We obtained studies from computerised searches of the Cochrane Central Register of Controlled Trials (CENTRAL), the Cochrane Hypertension Specialised Register, Ovid MEDLINE, and Ovid EMBASE, and from searches in reference lists, systematic reviews, and the clinical trials registry ClinicalTrials.gov (status as of 2 February 2015). SELECTION CRITERIA We included randomised controlled trials (RCTs) of at least 24 weeks' duration that compared weight-reducing dietary interventions to no dietary intervention in adults with primary hypertension. DATA COLLECTION AND ANALYSIS Two review authors independently assessed risk of bias and extracted data. We pooled studies using fixed-effect meta-analysis. In case of moderate or larger heterogeneity as measured by Higgins I(2), we used a random-effects model. MAIN RESULTS This review update did not reveal any new studies, so the number of included studies remained the same: 8 studies involving a total of 2100 participants with high blood pressure and a mean age of 45 to 66 years. Mean treatment duration was 6 to 36 months. We judged the risk of bias as unclear or high for all but two trials. No study included mortality as a predefined outcome. One RCT evaluated the effects of dietary weight loss on a combined endpoint consisting of the necessity of reinstating antihypertensive therapy and severe cardiovascular complications. In this RCT, weight-reducing diet lowered the endpoint compared to no diet: hazard ratio 0.70 (95% confidence interval (CI), 0.57 to 0.87). None of the studies evaluated adverse events as designated in our protocol. There was low-quality evidence for a blood pressure reduction in participants assigned to weight loss diets as compared to controls: systolic blood pressure: mean difference (MD) -4.5 mm Hg (95% CI -7.2 to -1.8 mm Hg) (3 of 8 studies included in analysis), and diastolic blood pressure: MD -3.2 mm Hg (95% CI -4.8 to -1.5 mm Hg) (3 of 8 studies included in analysis). There was moderate-quality evidence for weight reduction in dietary weight loss groups as compared to controls: MD -4.0 kg (95% CI -4.8 to -3.2) (5 of 8 studies included in analysis). Two studies used withdrawal of antihypertensive medication as their primary outcome. Even though we did not consider this a relevant outcome for our review, the results of these studies strengthen the finding of reduction of blood pressure by dietary weight loss interventions. AUTHORS' CONCLUSIONS In this update, the conclusions remain the same, as we found no new trials. In people with primary hypertension, weight loss diets reduced body weight and blood pressure, however the magnitude of the effects are uncertain due to the small number of participants and studies included in the analyses. Whether weight loss reduces mortality and morbidity is unknown. No useful information on adverse effects was reported in the relevant trials.
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Affiliation(s)
- Thomas Semlitsch
- Medical University of GrazInstitute of General Practice and Evidence‐Based Health Services ResearchAuenbruggerplatz 2/9GrazAustria8036
| | - Klaus Jeitler
- Medical University of GrazInstitute of General Practice and Evidence‐Based Health Services Research / Institute of Medical Informatics, Statistics and DocumentationAuenbruggerplatz 2/9GrazAustria8036
| | - Andrea Berghold
- Medical University of GrazInstitute of General Practice and Evidence‐Based Health Services Research / Institute of Medical Informatics, Statistics and DocumentationAuenbruggerplatz 2/9GrazAustria8036
| | - Karl Horvath
- Medical University of GrazInstitute of General Practice and Evidence‐Based Health Services Research / Department of Internal Medicine, Division of Endocrinology and MetabolismAuenbruggerplatz 2/9GrazAustria8036
| | - Nicole Posch
- Medical University of GrazInstitute of General Practice and Evidence‐Based Health Services ResearchAuenbruggerplatz 2/9GrazAustria8036
| | - Stephanie Poggenburg
- Medical University of GrazInstitute of General Practice and Evidence‐Based Health Services ResearchAuenbruggerplatz 2/9GrazAustria8036
| | - Andrea Siebenhofer
- Graz, Austria / Institute of General Practice, Goethe UniversityInstitute of General Practice and Evidence‐Based Health Services Research, Medical University of GrazFrankfurt am MainGermany
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Metformin Changes the Relationship between Blood Monocyte Toll-Like Receptor 4 Levels and Nonalcoholic Fatty Liver Disease-Ex Vivo Studies. PLoS One 2016; 11:e0150233. [PMID: 26930651 PMCID: PMC4773077 DOI: 10.1371/journal.pone.0150233] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2015] [Accepted: 02/10/2016] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Toll-like receptor 4 (TLR4) contributes to the development of NAFLD (nonalcoholic fatty liver disease) and MetS (metabolic syndrome). It is unclear whether anti-diabetic metformin affects TLR4 expression on blood monocytes, thereby protecting or improving inflammatory parameters. Therefore, we investigated TLR4 in patients with NAFLD meeting different sets of MetS criteria and linked the results with the disease burden. METHODS 70 subjects were characterized and divided into three groups: (I) healthy individuals, (II) nonobese with NAFLD and without MetS, and (III) prediabetic, obese with NAFLD and MetS. We determined the concentrations of IL-1β, IL-6, TNFα, and monocyte TLR4 levels in fresh blood as well as in blood cultures with or without metformin supplementation. RESULTS The characteristics of the study groups revealed a significant association between NAFLD and BMI, MetS and inflammatory parameters, and TLR4. In ex vivo studies, 100 μM of metformin decreased the TLR4 level by 19.9% (II group) or by 35% (III group) as well as IL-1β and TNFα production. A stepwise multiple regression analysis highlighted a strong effect of metformin on attenuation of the link between TLR4 and NAFLD, and TNFα. CONCLUSION We concluded that, by attenuation of the blood monocyte TLR4 level, metformin reduced their inflammatory potential-critical after recruitment these cells into liver. However, this finding should be confirmed after in vivo metformin administration.
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Cavalcante-Silva LHA, Galvão JGFM, da Silva JSDF, de Sales-Neto JM, Rodrigues-Mascarenhas S. Obesity-Driven Gut Microbiota Inflammatory Pathways to Metabolic Syndrome. Front Physiol 2015; 6:341. [PMID: 26635627 PMCID: PMC4652019 DOI: 10.3389/fphys.2015.00341] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2015] [Accepted: 11/03/2015] [Indexed: 12/28/2022] Open
Abstract
The intimate interplay between immune system, metabolism, and gut microbiota plays an important role in controlling metabolic homeostasis and possible obesity development. Obesity involves impairment of immune response affecting both innate and adaptive immunity. The main factors involved in the relationship of obesity with inflammation have not been completely elucidated. On the other hand, gut microbiota, via innate immune receptors, has emerged as one of the key factors regulating events triggering acute inflammation associated with obesity and metabolic syndrome. Inflammatory disorders lead to several signaling transduction pathways activation, inflammatory cytokine, chemokine production and cell migration, which in turn cause metabolic dysfunction. Inflamed adipose tissue, with increased macrophages infiltration, is associated with impaired preadipocyte development and differentiation to mature adipose cells, leading to ectopic lipid accumulation and insulin resistance. This review focuses on the relationship between obesity and inflammation, which is essential to understand the pathological mechanisms governing metabolic syndrome.
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Affiliation(s)
- Luiz H A Cavalcante-Silva
- Programa Multicêntrico de Pós-graduação em Ciências Fisiológicas, Laboratório de Imunofarmacologia, Centro de Biotecnologia, Universidade Federal da Paraíba João Pessoa, Brasil
| | - José G F M Galvão
- Programa Multicêntrico de Pós-graduação em Ciências Fisiológicas, Laboratório de Imunofarmacologia, Centro de Biotecnologia, Universidade Federal da Paraíba João Pessoa, Brasil
| | - Juliane Santos de França da Silva
- Programa de Pós-Graduação em Produtos Naturais e Sintéticos Bioativos, Laboratório de Imunofarmacologia, Centro de Ciências da Saúde, Universidade Federal da Paraíba João Pessoa, Brasil
| | - José M de Sales-Neto
- Programa de Pós-Graduação em Biotecnologia, Laboratório de Imunofarmacologia, Centro de Biotecnologia, Universidade Federal da Paraíba João Pessoa, Brasil
| | - Sandra Rodrigues-Mascarenhas
- Programa Multicêntrico de Pós-graduação em Ciências Fisiológicas, Laboratório de Imunofarmacologia, Centro de Biotecnologia, Universidade Federal da Paraíba João Pessoa, Brasil ; Programa de Pós-Graduação em Produtos Naturais e Sintéticos Bioativos, Laboratório de Imunofarmacologia, Centro de Ciências da Saúde, Universidade Federal da Paraíba João Pessoa, Brasil ; Programa de Pós-Graduação em Biotecnologia, Laboratório de Imunofarmacologia, Centro de Biotecnologia, Universidade Federal da Paraíba João Pessoa, Brasil
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Catalán V, Gómez-Ambrosi J, Rodríguez A, Ramírez B, Valentí V, Moncada R, Silva C, Salvador J, Frühbeck G. Peripheral mononuclear blood cells contribute to the obesity-associated inflammatory state independently of glycemic status: involvement of the novel proinflammatory adipokines chemerin, chitinase-3-like protein 1, lipocalin-2 and osteopontin. GENES AND NUTRITION 2015; 10:460. [PMID: 25869413 DOI: 10.1007/s12263-015-0460-8] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 12/24/2014] [Accepted: 03/28/2015] [Indexed: 12/17/2022]
Abstract
Inflammation is a critical contributor to the pathogenesis of metabolic disorders with adipose tissue being crucial in the inflammatory response by releasing multiple adipokines with either pro- or anti-inflammatory activities with potential functions as metabolic regulators. Peripheral blood mononuclear cells (PBMC) have been proposed as representative of the inflammatory status in obesity. The aim of the present study was to evaluate the contribution of PBMC to the obesity-associated chronic inflammation analyzing the expression of novel adipokines. Samples obtained from 69 subjects were used in the study. Real-time PCR determinations were performed to quantify gene expression levels in PBMC of novel adipokines including chemerin, chitinase-3-like protein 1 (YKL-40), lipocalin-2 (LCN-2) and osteopontin (OPN), and their circulating concentrations were also determined by ELISA. We show, for the first time, that PBMC gene expression levels of chemerin (P < 0.0001), chitinase-3-like protein 1 (P = 0.010), lipocalin-2 (P < 0.0001) and osteopontin (P < 0.0001) were strongly upregulated in obesity independently of the glycemic state. Circulating concentrations of these adipokines followed the same trend being significantly higher (P < 0.05) in obese normoglycemic and type 2 diabetic patients compared to lean volunteers and also associated (P < 0.05) with their corresponding mRNA levels in PBMC. These results provide evidence that alterations in inflammation-related adipokines are manifest in PBMC, which might contribute to the low-grade chronic inflammation that characterizes obesity.
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Affiliation(s)
- Victoria Catalán
- Metabolic Research Laboratory, Clínica Universidad de Navarra, Pamplona, Spain,
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30
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Farinha JB, Steckling FM, Stefanello ST, Cardoso MS, Nunes LS, Barcelos RP, Duarte T, Kretzmann NA, Mota CB, Bresciani G, Moresco RN, Duarte MMMF, dos Santos DL, Soares FAA. Response of oxidative stress and inflammatory biomarkers to a 12-week aerobic exercise training in women with metabolic syndrome. SPORTS MEDICINE - OPEN 2015; 1:19. [PMID: 26284160 PMCID: PMC5005613 DOI: 10.1186/s40798-015-0011-2] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/04/2014] [Accepted: 02/10/2015] [Indexed: 12/22/2022]
Abstract
BACKGROUND Evidences have been highlighted the relationship among metabolic syndrome, chronic low-grade inflammation, oxidative stress and several diseases. In this sense, the aim of this study was to investigate the effects of aerobic exercise training on oxidative stress and inflammatory parameters on women with metabolic syndrome (MS). METHODS Twenty-three untrained women (51.86 ± 6.58 years old, BMI 30.8 ± 4.3 kg/m2) completed a 12-week treadmill exercise training, without modifications on dietary pattern. Advanced oxidation protein products (AOPP), thiobarbituric acid-reactive substances (TBARS), total thiol content (T-SH) and nitrite and nitrate (NOx) levels were assessed in plasma while the levels of interleukin-1 beta (IL-1β), interleukin-6 (IL-6), interleukin-10 (IL-10), tumor necrosis factor alpha (TNF-α) and interferon-gamma (IFN-γ) were evaluated in the serum. The RNA expression (mRNA) of IL-1β, IL-10, TNF-α, IFN-γ, insulin receptor substrate 2 (IRS-2) and matrix metalloproteinase-9 (MMP-9) were performed inperipheral blood mononuclear cells (PBMC) of a subset with eight women with MS using real real-time polymerase chain reaction (qPCR). RESULTS The intervention resulted in decreased serum levels of IL-1β, IL-6, TNF-α, IFN-γ, AOPP and TBARS, besides increased levels of IL-10 and T-SH (P < 0.001). NOx concentrations were unchanged, similarly to mRNA expressions quantified in PBMC. CONCLUSIONS Twelve weeks of AT improved systemic oxidative stress and inflammatory biomarkers in women with MS, although PBMC mRNA expression for inflammatory pathways appeared to be unchanged. This may indicate that AT induced beneficial effects not only in physical fitness but also on health promotion through decreased oxidative damage and proinflammatory status.
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Affiliation(s)
- Juliano Boufleur Farinha
- Departamento de Métodos e Técnicas Desportivas, Universidade Federal de Santa Maria, Avenida Roraima 1000, Santa Maria, 97105-900 Brazil
- Escola Superior de Educação Física, Universidade Federal do Rio Grande do Sul, Rua Felizardo 750, Porto Alegre, 90690200 Brazil
| | - Flávia Mariel Steckling
- Departamento de Métodos e Técnicas Desportivas, Universidade Federal de Santa Maria, Avenida Roraima 1000, Santa Maria, 97105-900 Brazil
| | - Sílvio Terra Stefanello
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal de Santa Maria, Avenida Roraima 1000, Santa Maria, 97105-900 Brazil
| | - Manuela Sangoi Cardoso
- Departamento de Análises Clínicas e Toxicológicas, Universidade Federal de Santa Maria, Avenida Roraima 1000, Santa Maria, 97105-900 Brazil
| | - Larissa Santos Nunes
- Centro Universitário Franciscano, Rua dos Andradas 1614, Santa Maria, 97010-032 Brazil
| | - Rômulo Pillon Barcelos
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal de Santa Maria, Avenida Roraima 1000, Santa Maria, 97105-900 Brazil
| | - Thiago Duarte
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal de Santa Maria, Avenida Roraima 1000, Santa Maria, 97105-900 Brazil
| | | | - Carlos Bolli Mota
- Departamento de Métodos e Técnicas Desportivas, Universidade Federal de Santa Maria, Avenida Roraima 1000, Santa Maria, 97105-900 Brazil
| | - Guilherme Bresciani
- Facultad de Ciencias de la Salud, Universidade Autónoma de Chile, Avenida Alemania 01090, Temuco, 4810101 Chile
| | - Rafael Noal Moresco
- Departamento de Análises Clínicas e Toxicológicas, Universidade Federal de Santa Maria, Avenida Roraima 1000, Santa Maria, 97105-900 Brazil
| | | | - Daniela Lopes dos Santos
- Departamento de Métodos e Técnicas Desportivas, Universidade Federal de Santa Maria, Avenida Roraima 1000, Santa Maria, 97105-900 Brazil
| | - Félix Alexandre Antunes Soares
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal de Santa Maria, Avenida Roraima 1000, Santa Maria, 97105-900 Brazil
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Blood cell transcriptomic-based early biomarkers of adverse programming effects of gestational calorie restriction and their reversibility by leptin supplementation. Sci Rep 2015; 5:9088. [PMID: 25766068 PMCID: PMC4357898 DOI: 10.1038/srep09088] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2014] [Accepted: 02/19/2015] [Indexed: 11/08/2022] Open
Abstract
The challenge of preventing major chronic diseases requires reliable, early biomarkers. Gestational mild undernutrition in rats is enough to program the offspring to develop later pathologies; the intake of leptin, a breastmilk component, during lactation may reverse these programming effects. We used these models to identify, in peripheral blood mononuclear cells (PBMCs), transcriptomic-based early biomarkers of programmed susceptibility to later disorders, and explored their response to neonatal leptin intake. Microarray analysis was performed in PBMCs from the offspring of control and 20% gestational calorie-restricted dams (CR), and CR-rats supplemented with physiological doses of leptin throughout lactation. Notably, leptin supplementation normalised 218 of the 224 mRNA-levels identified in PBMCs associated to undernutrition during pregnancy. These markers may be useful for early identification and subsequent monitoring of individuals who are at risk of later diseases and would specifically benefit from the intake of appropriate amounts of leptin during lactation.
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Abstract
Metabolic syndrome (MetS), which constitutes a cardio-metabolic risk cluster, is becoming a global epidemic. It is a pro-inflammatory and pro-oxidant state that confers an increased risk of cardiovascular disease and diabetes. MetS is not only characterized by increased circulating biomarkers of inflammation and oxidative stress but also by dysregulation of a pivotal phagocyte, the circulating monocyte. Pertubations manifesting in monocytes of patients with MetS include increased Toll-like receptors, CD40-CD40L dyad, increased ER stress, increased CCR5 and Fc-γ receptors (CD32 and CD64). Additionally, the monocytes demonstrate increase in NADPH oxidase activity and decreased Nrf2, resulting in oxidative damage to biomolecules. Thus the dysregulated monocyte in MetS appears to be a critical cell in the predisposition of MetS patients to diabetes and CVD. Therapeutic strategies targeting monocytes can attenuate this risk and the most compelling data derives from studies with statin therapy.
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Affiliation(s)
- Ishwarlal Jialal
- a Department of Pathology, Division of Endocrinology, Diabetes and Metabolism, Laboratory of Atherosclerosis and Metabolic Research, University of California Davis medical Center, Sacramento, CA, USA
- b VA Medical Center, Sacramento, CA, USA
| | - Sridevi Devaraj
- c Department of Pathology and Immunology, Baylor College of Medicine and Texas Children's Hospital, Houston, TX, USA
| | - Uthra Rajamani
- a Department of Pathology, Division of Endocrinology, Diabetes and Metabolism, Laboratory of Atherosclerosis and Metabolic Research, University of California Davis medical Center, Sacramento, CA, USA
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Resistant starch intake partly restores metabolic and inflammatory alterations in the liver of high-fat-diet-fed rats. J Nutr Biochem 2013; 24:1920-30. [PMID: 24011718 DOI: 10.1016/j.jnutbio.2013.05.008] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2012] [Revised: 05/12/2013] [Accepted: 05/28/2013] [Indexed: 02/07/2023]
Abstract
Insulin resistance (IR) constitutes the most important feature of the metabolic syndrome, whose prevalence is highly associated to the consumption of Western diets. Resistant starch (RS) consumption has been shown to have beneficial metabolic effects, including improved insulin sensitivity, and glucose and lipid homeostasis. However, the mechanisms (especially at the molecular level) by which this takes place are still not completely known. In the present study, we aimed to evaluate the role of the liver in the ameliorated high-fat (HF)-induced IR status by RS. Thus, three groups of rats were fed either a control diet, or an HF diet containing or not RS. After 9 weeks of feeding, we evaluated the whole-body insulin sensitivity, and the hepatic glucose and lipid metabolism at the biochemical and molecular levels and the metabolome of the cecum content. We demonstrated for the first time that at least part of the beneficial effects of RS consumption in the context of an HF feeding can be driven by changes elicited at the hepatic level. The ability of the RS to correct the HF-induced dyslipidemia and the associated IR resulted from the return to the basal expression levels of transcription factors involved in lipogenesis (SREBP-1c), cholesterol metabolism (SREBP-2, LXRs) and fatty acid oxidation (PPARα). Moreover, the RS feeding was able to correct the HF-induced reduction in hepatic glucose phosphorylation and muscle glucose transport, improving glucose tolerance. Finally, as a whole, the improved hepatic metabolism seemed to be the result of an ameliorated inflammatory status.
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McManus DD, Beaulieu LM, Mick E, Tanriverdi K, Larson MG, Keaney JF, Benjamin EJ, Freedman JE. Relationship among circulating inflammatory proteins, platelet gene expression, and cardiovascular risk. Arterioscler Thromb Vasc Biol 2013; 33:2666-73. [PMID: 23968978 DOI: 10.1161/atvbaha.112.301112] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
OBJECTIVE Cardiovascular disease is a complex disorder influenced by interactions of genetic variants with environmental factors. However, there is no information from large community-based studies examining the relationship of circulating cell-specific RNA to inflammatory proteins. In light of the associations among inflammatory biomarkers, obesity, platelet function, and cardiovascular disease, we sought to examine the relationships of C-reactive protein (CRP) and interleukin-6 (IL-6) to the expression of key inflammatory transcripts in platelets. APPROACH AND RESULTS We quantified circulating levels of CRP and IL-6 in 1625 participants of the Framingham Heart Study (FHS) Offspring cohort examination 8 (mean age, 66.6 ± 6.6 years; 46% men). We measured the expression of 15 relevant genes by high-throughput quantitative reverse transcriptase polymerase chain reaction from platelet-derived RNA and used multivariable regression to relate serum concentrations of CRP and IL-6 with gene expression. Levels of CRP and IL-6 were associated with 10 of the 15 platelet-derived inflammatory transcripts, ALOX5, CRP, IFIT1, IL6, PTGER2, S100A9, SELENBP1, TLR2, TLR4, and TNFRSF1B (P<0.001). Associations between platelet mRNA expression with CRP and IL-6 persisted after multivariable adjustment for potentially confounding factors. Six genes positively associated with CRP or IL-6 in the FHS sample were also upregulated in megakaryocytes in response to CRP or IL-6 exposure. CONCLUSIONS Our data highlight the strong connection between the circulating inflammatory biomarkers CRP and IL-6 and platelet gene expression, adjusting for cardiovascular disease risk factors. Our results also suggest that body weight may directly influence these associations.
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Affiliation(s)
- David D McManus
- From the National Heart Lung and Blood Institute's and Boston University's Framingham Heart Study, Framingham, MA (D.D.M., K.T., M.G.L., J.E.F.); Cardiology Division, Department of Medicine (D.D.M, L.M.B., K.T., J.F.K., J.E.F.) and Epidemiology Division, Department of Quantitative Health Sciences (D.D.M, E.M.), University of Massachusetts Medical School, Worcester, MA; Section of Cardiovascular Medicine, Department of Medicine (E.J.B.) and Department of Mathematics and Statistics (M.G.L.), Boston University, Boston, MA; Preventive Medicine Section, Department of Medicine, Boston University School of Medicine, Boston, MA (E.J.B.); and Department of Epidemiology (E.J.B.) and Department of Biostatistics (M.G.L.), Boston University School of Public Health, Boston, MA
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35
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Kuzmicki M, Telejko B, Wawrusiewicz-Kurylonek N, Lipinska D, Pliszka J, Wilk J, Zielinska A, Skibicka J, Szamatowicz J, Kretowski A, Gorska M. The expression of genes involved in NF-κB activation in peripheral blood mononuclear cells of patients with gestational diabetes. Eur J Endocrinol 2013; 168:419-27. [PMID: 23230212 DOI: 10.1530/eje-12-0654] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
OBJECTIVE In patients with obesity and type 2 diabetes, the changes in insulin resistance are associated with the changes in expression of genes involved in nuclear factor-κB (NF-κB) activation in peripheral blood mononuclear cells (PBMCs). As such studies have never been carried out in patients with gestational diabetes (GDM), in this study, we evaluated the expression of genes involved in NF-κB activation and related to glucose metabolism in PBMCs obtained from pregnant women with GDM and normal glucose tolerance (NGT). DESIGN AND METHODS RT-PCR was performed in 60 pregnant women divided into three groups: GDM at the 1st visit, i.e. in the 24th-28th weeks of gestation (GDM1), NGT at the first visit and GDM in the 29th-32nd weeks (GDM2), and NGT at both visits. The tests were repeated 3 months postpartum. RESULTS The GDM1 group had significantly higher TLR2 (P=0.024), TLR4 (P=0.037), STAT1 (P=0.027), and CX3CL1 (P=0.017) mRNA expression, whereas the GDM2 group showed markedly lower TNFRSF1A (P=0.042), PPARG (P=0.018), STAT3 (P=0.013), and CX3CL1 (P=0.038) mRNA expression in comparison with the NGT group. The women with NGT at the 1st visit who later developed GDM had significantly higher fasting glucose (P=0.01), HOMA-IR (P=0.004), and TLR2 mRNA expression (P=0.04), as well as lower ISSI2 (P=0.01) and disposition indices, DI₃₀ (P=0.03) and DI₁₂₀ (P=0.01), than had the women who remained normoglycemic. CONCLUSIONS Our results suggest that elevated TLR2 expression, as well as higher fasting glucose and lower compensation for increased insulin resistance, may represent early metabolic disturbances in the development of GDM.
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MESH Headings
- Adult
- Blood Glucose/analysis
- Chemokine CX3CL1/genetics
- Chemokine CX3CL1/metabolism
- Diabetes, Gestational/blood
- Diabetes, Gestational/diagnosis
- Diabetes, Gestational/metabolism
- Early Diagnosis
- Female
- Gene Expression Regulation
- Humans
- Insulin Resistance
- Leukocytes, Mononuclear/metabolism
- NF-kappa B p50 Subunit/blood
- NF-kappa B p50 Subunit/metabolism
- PPAR gamma/genetics
- PPAR gamma/metabolism
- Pregnancy
- Pregnancy Trimester, Second
- Pregnancy Trimester, Third
- RNA, Messenger/metabolism
- Receptors, Tumor Necrosis Factor, Type I/genetics
- Receptors, Tumor Necrosis Factor, Type I/metabolism
- STAT Transcription Factors/genetics
- STAT Transcription Factors/metabolism
- Toll-Like Receptor 2/genetics
- Toll-Like Receptor 2/metabolism
- Toll-Like Receptor 4/genetics
- Toll-Like Receptor 4/metabolism
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Affiliation(s)
- Mariusz Kuzmicki
- Department of Gynecology, Medical University of Bialystok, M. Curie-Sklodowskiej 24A, 15-276 Bialystok, Poland.
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Piya MK, McTernan PG, Kumar S. Adipokine inflammation and insulin resistance: the role of glucose, lipids and endotoxin. J Endocrinol 2013; 216:T1-T15. [PMID: 23160966 DOI: 10.1530/joe-12-0498] [Citation(s) in RCA: 166] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Adipose tissue is an active endocrine organ, and our knowledge of this secretory tissue, in recent years, has led us to completely rethink how our body functions and becomes dysregulated with weight gain. Human adipose tissue appears to act as a multifunctional secretory organ with the capacity to control energy homoeostasis through peripheral and central regulation of energy homoeostasis. It also plays an important role in innate immunity. However, the capability to more than double its original mass to cope with positive energy balance in obesity leads to many pathogenic changes. These changes arise within the adipose tissue as well as inducing secondary detrimental effects on other organs like muscle and liver, including chronic low-grade inflammation mediated by adipocytokines (adipokine inflammation). This inflammation is modulated by dietary factors and nutrients including glucose and lipids, as well as gut bacteria in the form of endotoxin or LPS. The aim of this current review is to consider the impact of nutrients such as glucose and lipids on inflammatory pathways, specifically within adipose tissue. Furthermore, how nutrients such as these can influence adipokine inflammation and consequently insulin resistance directly through their effects on secretion of adipocytokines (TNFα, IL6 and resistin) as well as indirectly through increases in endotoxin is discussed.
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Affiliation(s)
- M K Piya
- Division of Metabolic and Vascular Health, Clinical Sciences Research Laboratories, Warwick Medical School, University Hospital Site, University of Warwick, Coventry CV2 2DX, UK.
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de Mello VDF, Kolehmanien M, Schwab U, Pulkkinen L, Uusitupa M. Gene expression of peripheral blood mononuclear cells as a tool in dietary intervention studies: What do we know so far? Mol Nutr Food Res 2012; 56:1160-72. [PMID: 22610960 DOI: 10.1002/mnfr.201100685] [Citation(s) in RCA: 125] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2011] [Revised: 03/01/2012] [Accepted: 03/11/2012] [Indexed: 12/21/2022]
Abstract
Peripheral blood mononuclear cells (PBMCs) generally refer to monocytes and lymphocytes, representing cells of the innate and adaptive immune systems. PBMCs are a promising target tissue in the field of nutrigenomics because they seem to reflect the effects of dietary modifications at the level of gene expression. In this review, we describe and discuss the scientific literature concerning the use of gene expression at the mRNA level measured from PBMCs in dietary interventions studies conducted in humans. A search of literature was undertaken using PubMed (last assessed November 24, 2011) and 20 articles were selected for discussion. Currently, results from these studies showed that PBMCs seem to reflect liver environment and complement adipose tissue findings in transcriptomics. PBMC gene expression after dietary intervention studies can be used for studying the response of certain genes related to fatty acid and cholesterol metabolism, and to explore the response of dietary interventions in relation to inflammation. However, PBMC transcriptomics from dietary intervention studies have not resulted yet in clear confirmation of candidate genes related to disease risk. Use of microarray technology in larger well-designed dietary intervention studies is still needed for exploring PBMC potential in the field of nutrigenomics.
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Affiliation(s)
- Vanessa Derenji Ferreira de Mello
- Department of Clinical Nutrition, Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio, Finland.
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38
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Rudkowska I, Jacques H, Weisnagel SJ, Marette A, Vohl MC. Transcriptomic profiles of skeletal muscle tissue following an euglycemic-hyperinsulinemic clamp in insulin-resistant obese subjects. GENES AND NUTRITION 2012; 8:91-8. [PMID: 22566203 DOI: 10.1007/s12263-012-0298-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2011] [Accepted: 04/21/2012] [Indexed: 12/22/2022]
Abstract
Insulin resistance in skeletal muscle is an early phenomenon in the pathogenesis of type 2 diabetes. Muscle is mainly responsible for insulin-stimulated glucose clearance from the bloodstream. Thus, regulation of gene expression in muscle tissue may be involved in the pathogenesis of insulin resistance. The objective was to investigate gene expression and metabolic pathways alterations in skeletal muscle tissue following an euglycemic-hyperinsulinemic clamp in obese insulin-resistant subjects. We carried out a transcriptome comparison of skeletal muscle tissue before and after a 3-h euglycemic-hyperinsulinemic clamp following 8-week supplementation with n-3 polyunsaturated fatty acid (PUFA) (1.8 g/day) with or without a supplement of fish gelatin (FG) (25 % of daily protein intake) in 16 obese insulin-resistant subjects. Results indicate that approximately 5 % (1932) of expressed transcripts were significantly changed after the clamp in both n-3 PUFA and n-3 PUFA + FG supplementation periods. Of these differentially expressed transcripts, 1394 genes associated with enzymes, transcription and translation regulators, transporters, G protein-coupled receptors, cytokines, and ligand-dependent nuclear receptors were modified. Metabolic pathways that were significantly modified included liver X receptor/retinoid X receptors (RXR) activation, vitamin D receptor/RXR activation, interleukin (IL)-8, acute phase response, IL10, triggering receptor expressed on myeloid cells 1, peroxisome proliferator-activated receptor, G-beta/gamma and hepatocyte growth factor and IL6 signaling. Taken together, results suggest that mainly inflammatory and transcription factors are modified following clamp in obese insulin-resistant subjects. Overall, understanding the changes in metabolic pathways due to insulin may be a potential target for the management of insulin resistance.
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Affiliation(s)
- Iwona Rudkowska
- Institute of Nutraceuticals and Functional Foods (INAF), Laval University, Pavillon des Services, bureau 2729 K, 2440, boulevard Hochelaga, Québec, QC, G1V 0A6, Canada
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Cagnone GLM, Dufort I, Vigneault C, Sirard MA. Differential gene expression profile in bovine blastocysts resulting from hyperglycemia exposure during early cleavage stages. Biol Reprod 2012; 86:50. [PMID: 22075474 DOI: 10.1095/biolreprod.111.094391] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
To understand the compromised survival of embryos derived from assisted reproductive techniques, transcriptome survey of early embryonic development has shown the impact of in vitro culture environment on gene expression in bovine or other living species. However, how the differentially expressed genes translate into developmentally compromised embryos is unresolved. We therefore aimed to characterize transcriptomic markers expressed by bovine blastocysts cultured in conditions that are known to impair embryo development. As increasing glucose concentrations has been shown to be stressful for early cleavage stages of mammalian embryos and to decrease subsequent blastocyst survival, in vitro-matured/fertilized bovine zygotes were cultured in control (0.2 mM) or high-glucose (5 mM) conditions until the 8- to 16-cell stage, and then transferred to control media until they reached the blastocyst stage. The concentration of 5 mM glucose was chosen as a stress treatment because there was a significant effect on blastocyst rate without the treatment's being lethal as with 10 mM. Microarray analysis revealed gene expression differences unrelated to embryo sex or hatching. Overrepresented processes among differentially expressed genes in treated blastocysts were extracellular matrix signalling, calcium signaling, and energy metabolism. On a pathophysiological level, higher glucose treatment impacts pathways associated with diabetes and tumorigenesis through genes controlling the Warburg effect, i.e., emphasis on use of anaerobic glycolysis rather than oxidative phosphorylation. These results allowed us to conclude that disruption of in vitro preattachment development is concomitant with gene expression modifications involved in metabolic control.
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Affiliation(s)
- Gaël L M Cagnone
- Département des Sciences Animales, Centre de Recherche en Biologie de la Reproduction, Université Laval, Québec, Canada
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Abstract
Toll-like receptors (TLRs) are first-line molecules for initiating the innate immune responses and mediating functional activation in immune effector cells. A family of 10 functional human TLRs altogether can recognize the ligands that do not exist in the host and initiate the inflammatory cascades. This triggers the production of inflammatory cytokines, chemokines, and interferons. Overactivation of innate immunity might lead to immune-mediated inflammatory disorders. Besides that, TLRs are currently viewed as active participants in the cross-communication between immunity and metabolic health. Recent data directly implicate the activation of inflammatory pathways in the pathogenesis of type 1 and type 2 diabetes, atherosclerosis, obesity, and also cancer. The following approaches to develop new TLR drugs have been undertaken: generating TLR agonists/antagonists, creating monoclonal antibody to TLRs, blocking the key molecules in the signaling pathways, down-modulating TLR signaling. In this article, we briefly review the involvement of TLRs in diseases associated with metabolic alterations, underscoring the modulation of TLRs by insulin.
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Individualized Weight Management: What Can Be Learned from Nutrigenomics and Nutrigenetics? PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2012; 108:347-82. [DOI: 10.1016/b978-0-12-398397-8.00014-9] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Siebenhofer A, Jeitler K, Berghold A, Waltering A, Hemkens LG, Semlitsch T, Pachler C, Strametz R, Horvath K. Long-term effects of weight-reducing diets in hypertensive patients. Cochrane Database Syst Rev 2011:CD008274. [PMID: 21901719 DOI: 10.1002/14651858.cd008274.pub2] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
BACKGROUND All major guidelines for antihypertensive therapy recommend weight loss. Thus dietary interventions that aim to reduce body weight might be a useful intervention to reduce blood pressure and adverse cardiovascular events associated with hypertension. OBJECTIVES Primary objectivesTo assess the long-term effects of weight-reducing diets in hypertensive patients on- all cause mortality - cardiovascular morbidity - adverse events (including total serious adverse events, withdrawal due to adverse events and total non-serious adverse events)Secondary objectivesTo assess the long-term effects of weight-reducing diets in hypertensive patients on- change from baseline in systolic blood pressure - change from baseline in diastolic blood pressure - body weight reduction SEARCH STRATEGY Studies were obtained from computerised searches of Ovid MEDLINE, EMBASE, CENTRAL and from searches in reference lists and systematic reviews. SELECTION CRITERIA Randomised controlled trials (RCT) in adult hypertensive patients were included if they had a study duration of at least 24 weeks and compared weight reducing dietary interventions to no dietary intervention in adult patients with primary hypertension. DATA COLLECTION AND ANALYSIS Two authors independently assessed risk of bias and extracted data. Studies were pooled using fixed-effect meta-analysis. In case of moderate or larger heterogeneity as measured by Higgins I(2), a random effects model was used. MAIN RESULTS Eight studies involving a total of 2100 participants with high blood pressure and a mean age of 45 to 66 years met our inclusion criteria. Mean treatment duration was 6 to 36 months. No study included mortality as a pre-defined outcome. One RCT evaluated the effects of dietary weight loss on a combined endpoint, consisting of the necessity of reinstating antihypertensive therapy and severe cardiovascular complications. In this RCT weight reducing diet lowered the endpoint, hazard ratio 0.70 (95% confidence interval [CI], 0.57 to 0.87) compared to no diet. None of the studies evaluated adverse events as designated in our protocol. Blood pressure was reduced in patients assigned to weight loss diets as compared to controls: systolic blood pressure (SBP): weighted mean difference (WMD): -4.5 mm Hg; 95% CI, -7.2 to -1.8 mm Hg (3 of 8 studies included in analysis), and diastolic blood pressure (DBP): WMD -3.2 mm Hg; 95% CI, -4.8 to -1.5 mm Hg (3 of 8 studies included in analysis). Patients' body weight was also reduced in dietary weight loss groups as compared to controls, WMD of -4.0 kg (95% CI: -4.8 to -3.2) (5 of 8 studies included in analysis). Two studies used withdrawal of antihypertensive medication as their primary outcome. Even though this was not considered a relevant outcome for this review, the results of these studies strengthen the finding of reduction of blood pressure by dietary weight loss interventions. AUTHORS' CONCLUSIONS In patients with primary hypertension, weight loss diets reduced body weight and blood pressure, however the magnitude of the effects are uncertain as a result of the small number of patients and studies that could be included in the analyses. It is not known whether weight loss reduces mortality and morbidity. No useful information on adverse effects was reported in the relevant trials.
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Affiliation(s)
- Andrea Siebenhofer
- Institute for General Practice, Goethe University, Theodor-Stern-Kai 7, Frankfurt am Main, Germany, 60590
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Abstract
Obesity is a highly prevalent health problem in Western countries that leads to many important diseases such as type 2 diabetes and metabolic syndrome being now considered an inflammatory chronic disease. Adipocytes are no longer considered passive cells storing fat since they are major producers of inflammatory cytokines during obesity. Adipocytes and macrophages share many biological properties including the synthesis of similar molecules regulating inflammation. Fatty acid levels are elevated in obesity and induce inflammatory pathways by yet a mostly unknown mechanism, leading to the development of insulin and leptin resistance. Recent studies suggest that these effects could be mediated through the activation of toll-like receptors (TLR). TLR signalling pathways might contribute to the development of obesity-associated insulin resistance, thus representing a connection between innate immunity and metabolism. Here, we summarize the recent evidence for the important role that TLRs play in adipose tissue, obesity and insulin resistance.
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Affiliation(s)
- Manuel Fresno
- Centro de Biología Molecular Severo Ochoa, Consejo Superior de Investigaciones Cientificas, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain.
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Weyrich P, Staiger H, Stančáková A, Machicao F, Machann J, Schick F, Stefan N, Kuusisto J, Laakso M, Schäfer S, Fritsche A, Häring HU. The D299G/T399I Toll-like receptor 4 variant associates with body and liver fat: results from the TULIP and METSIM Studies. PLoS One 2010; 5:e13980. [PMID: 21125016 PMCID: PMC2981584 DOI: 10.1371/journal.pone.0013980] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2010] [Accepted: 10/16/2010] [Indexed: 01/22/2023] Open
Abstract
BACKGROUND Toll-like-receptor 4 (TLR) is discussed to provide a molecular link between obesity, inflammation and insulin resistance. Genetic studies with replications in non-diabetic individuals in regard to their fat distribution or insulin resistance according to their carrier status of a common toll-like receptor 4 (TLR4) variant (TLR4(D299G/T399I)) are still lacking. METHODOLOGY/PRINCIPAL FINDINGS We performed a cross-sectional analysis in individuals phenotyped for prediabetic traits as body fat composition (including magnetic resonance imaging), blood glucose levels and insulin resistance (oral glucose tolerance testing, euglycemic hyperinsulinemic clamp), according to TLR4 genotype determined by candidate SNP analyses (rs4986790). We analyzed N = 1482 non-diabetic individuals from the TÜF/TULIP cohort (South Germany, aged 39±13 y, BMI 28.5±7.9, mean±SD) and N = 5327 non-diabetic participants of the METSIM study (Finland, males aged 58±6 y, BMI 26.8±3.8) for replication purposes. German TLR4(D299G/T399I) carriers had a significantly increased body fat (XG in rs4986790: +6.98%, p = 0.03, dominant model, adjusted for age, gender) and decreased insulin sensitivity (XG: -15.3%, Matsuda model, p = 0.04; XG: -20.6%, p = 0.016, clamp; both dominant models adjusted for age, gender, body fat). In addition, both liver fat (AG: +49.7%; p = 0.002) and visceral adipose tissue (AG: +8.2%; p = 0.047, both adjusted for age, gender, body fat) were significantly increased in rs4986790 minor allele carriers, and the effect on liver fat remained significant also after additional adjustment for visceral fat (p = 0.014). The analysis in METSIM confirmed increased body fat content in association with the rare G allele in rs4986790 (AG: +1.26%, GG: +11.0%; p = 0.010, additive model, adjusted for age) and showed a non-significant trend towards decreased insulin sensitivity (AG: -0.99%, GG: -10.62%). CONCLUSIONS/SIGNIFICANCE TLR4(D299G/T399I) associates with increased total body fat, visceral fat, liver fat and decreased insulin sensitivity in non-diabetic Caucasians and may contribute to diabetes risk. This finding supports the role of TLR4 as a molecular link between obesity and insulin resistance.
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Affiliation(s)
- Peter Weyrich
- Division of Endocrinology, Diabetology, Vascular Disease, Nephrology, Clinical Chemistry, Department of Internal Medicine, Paul-Langerhans-Institute Tübingen, University of Tübingen, Tübingen, Germany
| | - Harald Staiger
- Division of Endocrinology, Diabetology, Vascular Disease, Nephrology, Clinical Chemistry, Department of Internal Medicine, Paul-Langerhans-Institute Tübingen, University of Tübingen, Tübingen, Germany
- * E-mail:
| | - Alena Stančáková
- Department of Medicine, Kuopio University Hospital, Kuopio, Finland
| | - Fausto Machicao
- Division of Endocrinology, Diabetology, Vascular Disease, Nephrology, Clinical Chemistry, Department of Internal Medicine, Paul-Langerhans-Institute Tübingen, University of Tübingen, Tübingen, Germany
| | - Jürgen Machann
- Section on Experimental Radiology, University of Tübingen, Germany
| | - Fritz Schick
- Section on Experimental Radiology, University of Tübingen, Germany
| | - Norbert Stefan
- Division of Endocrinology, Diabetology, Vascular Disease, Nephrology, Clinical Chemistry, Department of Internal Medicine, Paul-Langerhans-Institute Tübingen, University of Tübingen, Tübingen, Germany
| | - Johanna Kuusisto
- Department of Medicine, Kuopio University Hospital, Kuopio, Finland
| | - Markku Laakso
- Department of Medicine, Kuopio University Hospital, Kuopio, Finland
| | - Silke Schäfer
- Division of Endocrinology, Diabetology, Vascular Disease, Nephrology, Clinical Chemistry, Department of Internal Medicine, Paul-Langerhans-Institute Tübingen, University of Tübingen, Tübingen, Germany
| | - Andreas Fritsche
- Division of Endocrinology, Diabetology, Vascular Disease, Nephrology, Clinical Chemistry, Department of Internal Medicine, Paul-Langerhans-Institute Tübingen, University of Tübingen, Tübingen, Germany
| | - Hans-Ulrich Häring
- Division of Endocrinology, Diabetology, Vascular Disease, Nephrology, Clinical Chemistry, Department of Internal Medicine, Paul-Langerhans-Institute Tübingen, University of Tübingen, Tübingen, Germany
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Abstract
Chronic inflammation is a key feature of insulin resistance and obesity. Toll-Like Receptor 4 (TLR4), involved in modulating innate immunity, is an important mediator of insulin resistance and its comorbidities. TLR4 contributes to the development of insulin resistance and inflammation through its activation by elevated exogenous ligands (e.g., dietary fatty acids and enteric lipopolysaccharide) and endogenous ligands (e.g., free fatty acids) which are elevated in obese states. TLR4, expressed in insulin target tissues, activates proinflammatory kinases JNK, IKK, and p38 that impair insulin signal transduction directly through inhibitory phosphorylation of insulin receptor substrate (IRS) on serine residues. TLR4 activation also leads to increased transcription of pro-inflammatory genes, resulting in elevation of cytokine, chemokine, reactive oxygen species, and eicosanoid levels that promote further insulin-desensitization within the target cell itself and in other cells via paracrine and systemic effects. Increased understanding of cell type-specific TLR4-mediated effects on insulin action present the opportunity and challenge of developing related therapeutic approaches for improving insulin sensitivity while preserving innate immunity.
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Caimari A, Oliver P, Keijer J, Palou A. Peripheral blood mononuclear cells as a model to study the response of energy homeostasis-related genes to acute changes in feeding conditions. OMICS-A JOURNAL OF INTEGRATIVE BIOLOGY 2010; 14:129-41. [PMID: 20235874 DOI: 10.1089/omi.2009.0092] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Peripheral blood mononuclear cells (PBMCs) are readily accessible biological material and a potential tissue source to discover novel biomarkers of response to environmental exposures including nutrition. We analyzed whether PBMCs could reflect molecular changes that take place in response to different feeding conditions in key organs/tissues involved in energy homeostasis. We studied energy balance-related genes whose expression was altered in normoweight (control) rats and in diet-induced (cafeteria) obese rats in response to ad libitum feeding, 14-h fasting, and 6-h refeeding after fasting, using whole-genome microarray analysis. In PBMCs, the expression of the genes central to energy metabolism was altered by the feeding conditions. The number of affected genes was 75 in the control rats, but only 23 in the cafeteria obese rats. Most of these genes play a role in metabolic pathways regulated by nutritional changes, such as lipid metabolism (the metabolic pathway mainly reflected in blood cells), carbohydrate metabolism, central energy metabolism, respiratory chain/mitochondrial ATPase system, and food intake regulation. Importantly, our results showed a similar behavior to that of the mesenteric white adipose tissue. In conclusion, metabolic adaptations to acute changes in feeding conditions are reflected in the expression of genes central to energy homeostasis in PBMCs of normoweight rats, while response is impaired in cafeteria obese animals. The lower number of genes affected in obese animals indicates impaired nutritional regulation. PBMCs appear as a suitable potential model to characterize metabolic adaptations to food intake and body weight maintenance in experimental animals. These findings may also inform the development of future peripheral tissue models in the emerging field of clinical nutrigenomics.
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Affiliation(s)
- Antoni Caimari
- Laboratory of Molecular Biology, Nutrition and Biotechnology, Universitat de les Illes Balears and CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Palma de Mallorca, Spain
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Steinhardt AP, Aranguren F, Tellechea ML, Gómez Rosso LA, Brites FD, Martínez-Larrad MT, Serrano-Ríos M, Frechtel GD, Taverna MJ. A functional nonsynonymous toll-like receptor 4 gene polymorphism is associated with metabolic syndrome, surrogates of insulin resistance, and syndromes of lipid accumulation. Metabolism 2010; 59:711-7. [PMID: 19922963 DOI: 10.1016/j.metabol.2009.09.015] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2009] [Revised: 09/15/2009] [Accepted: 09/16/2009] [Indexed: 01/12/2023]
Abstract
Toll-like receptor 4 (TLR4) plays a key role in the activation of innate immune responses. Loss-of-function mutations in TLR4 prevent diet-induced obesity and insulin resistance (IR). We conducted a population cross-sectional study to evaluate whether Asp299Gly (rs4986790) TLR4 gene polymorphism is associated with metabolic syndrome (MS), surrogates of IR, and syndromes of lipid accumulation (SLAs) in Argentinean healthy male subjects. rs4986790 was genotyped in 621 healthy unrelated male blood donors. National Cholesterol Education Program/Adult Treatment Panel III-MS (NCEP/ATP III-MS); SLAs such as enlarged waist elevated triglyceride syndrome (EWET), hypertriglyceridemic waist (HW), and overweight-lipid syndrome (OLS); and surrogates of IR were assessed. The prevalence of MS, OLS, and EWET was significantly higher among Asp299Asp carriers (P < .05). These findings were confirmed using 32 000 bootstrap samples. Surrogate markers of IR were also significantly higher in Asp299Asp carriers (P < .05). Most findings were especially strengthened among individuals with C-reactive protein below the 95th percentile and/or total cholesterol to high-density lipoprotein cholesterol ratio >or=5. This is the first report to find, in Argentinean healthy male blood donors, associations between the Asp299Asp genotype of rs4986790 TLR4 gene polymorphism and high risk for NCEP/ATP III-MS, SLAs, and surrogates of IR. These findings are consistent with previous functional and observational studies showing that Asp299 allele, in comparison with Gly299, is associated with increased TLR4 activation, higher levels of inflammatory cytokines, acute-phase reactants and soluble adhesion molecules, and higher risk of atherosclerosis.
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Affiliation(s)
- Alberto Penas Steinhardt
- Humoral Immunity Institute Prof Ricardo A. Margni (IDEHU), National Research Council (CONICET) and School of Pharmacy and Biochemistry, University of Buenos Aires (UBA), Buenos Aires, Argentina
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Ebenezer PJ, Mariappan N, Elks CM, Haque M, Soltani Z, Reisin E, Francis J. Effects of pyrrolidine dithiocarbamate on high-fat diet-induced metabolic and renal alterations in rats. Life Sci 2009; 85:357-64. [PMID: 19631668 DOI: 10.1016/j.lfs.2009.06.019] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2008] [Revised: 05/28/2009] [Accepted: 06/29/2009] [Indexed: 12/11/2022]
Abstract
AIMS We investigated the effects of the nuclear factor kappa B (NFkappaB) blocker pyrrolidine dithiocarbamate (PDTC) on high-fat diet (HFD)-induced metabolic and renal alterations in obese and lean Zucker rats (OZR and LZR, respectively). MAIN METHODS Rats were fed a HFD resembling the typical "Western" diet or a regular diet (RD) and allowed free access to tap water or tap water containing PDTC (150 mg/kg body weight) for 10 weeks; rats were then sacrificed. Total ROS production rates were measured using electron paramagnetic resonance spectroscopy, and superoxide production was measured with lucigenin assay. Blood, plasma, and urine were analyzed. Semi-quantitative reverse transcriptase-polymerase chain reaction and electrophoretic mobility shift assay were conducted to assess NFkappaB mRNA levels and DNA binding activities, respectively; immunofluorescence was performed to assess protein levels. KEY FINDINGS OZR-HFD rats exhibited significantly higher levels of total renal cortical reactive oxygen species production, plasma lipids, insulin, C-reactive protein, blood urea nitrogen, creatinine, and urinary albumin excretion than all other groups (p<0.05); these changes were accompanied by a significant decrease in plasma high density lipoprotein levels (p<0.05). Gene expression levels of desmin, cytokine and oxidative stress genes were significantly higher in the renal cortical tissues of OZR-HFD; NFkappaB p65 DNA binding activity was also significantly higher in these animals. PDTC attenuated these changes. SIGNIFICANCE Our data suggest that NFkappaB blockade may prove beneficial in treating the nephropathy often associated with metabolic syndrome.
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Affiliation(s)
- Philip J Ebenezer
- Department of Comparative Biomedical Sciences, Louisiana State University School of Veterinary Medicine, Baton Rouge, LA 70803, USA
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Marteau JB, Samara A, Dedoussis G, Pfister M, Visvikis-Siest S. Candidate gene microarray analysis in peripheral blood cells for studying hypertension/obesity. Per Med 2009; 6:269-291. [PMID: 29783504 DOI: 10.2217/pme.09.6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
AIMS The gene expression of 182 cardiovascular candidate genes was measured in high quality groups of individuals (n = 20) by microarrays to determine whether a subset of genes would discriminate obese and hypertensive individuals, in spite of the existence of a close link between these two cardiovascular risk factors. MATERIALS & METHODS The results were validated on the 20 subjects used for microarray analysis and on 62 additional individuals by real-time PCR. RESULTS The first analysis, where patient groups were compared with healthy subjects, revealed 15 out of 182 genes that differed in hypertensive, obese or obesity-related hypertensive individuals. These genes were ALOX5, APOA2, SELL, RGS2, CD14, FPR1, CAMP, DEFA3, DEFA4, CBS, CHRM1, ICAM1, NR1H2, SCNN1B and TGFB1. A second analysis was carried out in which patient groups were compared with each other, demonstrating FPR1 and DEFA3 as being significant genes discriminating patient groups. Furthermore, an analysis stratified by sex revealed that, with the exception of DEFA3, there are no other common genes between men and women. DISCUSSION We were able to indentify a number of interesting genes that distinguish patient and healthy subject groups as well as patient groups between them. CONCLUSION In addition, it seems that gender plays an important role, at least for some of the genes we tested. These findings may have important implications in the screening and etiology of hypertension or obesity, and could further help to focus on these specific mRNAs as antisense therapy targets.
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Affiliation(s)
- Jean-Brice Marteau
- Nancy Université Henri Poincaré, Faculté de Pharmacie, Unité de recherche Génétique Cardiovasculaire, 30 rue Lionnois, 54000 Nancy, France.
| | - Anastasia Samara
- Nancy Université Henri Poincaré, Faculté de Pharmacie, Unité de recherche Génétique Cardiovasculaire, 30 rue Lionnois, 54000 Nancy, France.
| | | | - Michèle Pfister
- Nancy Université Henri Poincaré, Faculté de Pharmacie, Unité de recherche Génétique Cardiovasculaire, 30 rue Lionnois, 54000 Nancy, France.
| | - Sophie Visvikis-Siest
- Nancy Université Henri Poincaré, Faculté de Pharmacie, Unité de recherche Génétique Cardiovasculaire, 30 rue Lionnois, 54000 Nancy, France.
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Current literature in diabetes. Diabetes Metab Res Rev 2009; 25:i-viii. [PMID: 19267326 DOI: 10.1002/dmrr.952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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