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Kolb H, Kempf K, Martin S. Insulin and aging - a disappointing relationship. Front Endocrinol (Lausanne) 2023; 14:1261298. [PMID: 37854186 PMCID: PMC10579801 DOI: 10.3389/fendo.2023.1261298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 08/25/2023] [Indexed: 10/20/2023] Open
Abstract
Experimental studies in animal models of aging such as nematodes, fruit flies or mice have observed that decreased levels of insulin or insulin signaling promotes longevity. In humans, hyperinsulinemia and concomitant insulin resistance are associated with an elevated risk of age-related diseases suggestive of a shortened healthspan. Age-related disorders include neurodegenerative diseases, hypertension, cardiovascular disease, and type 2 diabetes. High ambient insulin concentrations promote increased lipogenesis and fat storage, heightened protein synthesis and accumulation of non-functional polypeptides due to limited turnover capacity. Moreover, there is impaired autophagy activity, and less endothelial NO synthase activity. These changes are associated with mitochondrial dysfunction and oxidative stress. The cellular stress induced by anabolic activity of insulin initiates an adaptive response aiming at maintaining homeostasis, characterized by activation of the transcription factor Nrf2, of AMP activated kinase, and an unfolded protein response. This protective response is more potent in the long-lived human species than in short-lived models of aging research resulting in a stronger pro-aging impact of insulin in nematodes and fruit flies. In humans, resistance to insulin-induced cell stress decreases with age, because of an increase of insulin and insulin resistance levels but less Nrf2 activation. These detrimental changes might be contained by adopting a lifestyle that promotes low insulin/insulin resistance levels and enhances an adaptive response to cellular stress, as observed with dietary restriction or exercise.
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Affiliation(s)
- Hubert Kolb
- Faculty of Medicine, Heinrich-Heine-University Düsseldorf, Düsseldorf, Germany
- West-German Centre of Diabetes and Health, Düsseldorf Catholic Hospital Group, Düsseldorf, Germany
| | - Kerstin Kempf
- West-German Centre of Diabetes and Health, Düsseldorf Catholic Hospital Group, Düsseldorf, Germany
| | - Stephan Martin
- Faculty of Medicine, Heinrich-Heine-University Düsseldorf, Düsseldorf, Germany
- West-German Centre of Diabetes and Health, Düsseldorf Catholic Hospital Group, Düsseldorf, Germany
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Wang W, Sun Y, Mo DG, Li T, Yao HC. Circulating IGF-1 and IGFBP-2 may be biomarkers for risk stratification in patients with acute coronary syndrome: A prospective cohort study. Nutr Metab Cardiovasc Dis 2023; 33:1740-1747. [PMID: 37414657 DOI: 10.1016/j.numecd.2023.05.030] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Revised: 05/15/2023] [Accepted: 05/25/2023] [Indexed: 07/08/2023]
Abstract
BACKGROUND AND AIM The involvement of insulin-like growth factor-1 (IGF-1) and insulin-like growth factor binding protein-2 (IGFBP-2) following acute coronary syndrome (ACS) is rarely studied in clinical practice. Therefore, we sought to evaluate the relationship between IGF-1 and IGFBP-2 concentrations at admission and risk stratification based on the Thrombolysis in Myocardial Infarction (TIMI) risk score in patients with ACS. METHODS AND RESULTS In all, 304 patients diagnosed with ACS were included in this study. Plasma IGF-1 and IGFBP-2 were measured using commercially available ELISA kits. The TIMI risk score was calculated and the study population was stratified into high (n = 65), medium (n = 138), and low (n = 101) risk groups. Levels of IGF-1 and IGFBP-2 were analyzed for their predictive ability of risk stratification based on the TIMI risk scores. Correlation analysis showed that IGF-1 levels were negatively correlated with TIMI risk levels (r = -0.144, p = 0.012), while IGFBP-2 levels were significantly and positively correlated with TIMI risk levels (r = 0.309, p < 0.001). In multivariate logistic regression analysis, IGF-1 (odds ratio [OR]: 0.995; 95% confidence interval [CI]: 0.990-1.000; p = 0.043) and IGFBP-2 (OR: 1.002; 95%CI: 1.001-1.003; p < 0.001) were independent predictors of high TIMI risk levels. In receiver operating characteristic curves, the area under the curve values for IGF-1 and IGFBP-2 in the prediction of high TIMI risk levels were 0.605 and 0.723, respectively. CONCLUSIONS IGF-1 and IGFBP-2 levels are excellent biomarkers for risk stratification in patients with ACS, which provides further guidance for clinicians to identify patients at high risk and to lower their risk.
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Affiliation(s)
- Wei Wang
- Department of Cardiology, Liaocheng People's Hospital, Shandong University, Jinan, Shandong, 250012, PR China; Department of Cardiology, Liaocheng People's Hospital Affiliated to Shandong First Medical University, Liaocheng, Shandong, 252000, PR China
| | - Ying Sun
- Department of Cardiology, Liaocheng People's Hospital Affiliated to Shandong First Medical University, Liaocheng, Shandong, 252000, PR China
| | - De-Gang Mo
- Department of Cardiology, Liaocheng People's Hospital Affiliated to Shandong First Medical University, Liaocheng, Shandong, 252000, PR China
| | - Tai Li
- Department of Nursing, Liaocheng Vocational & Technical College, Liaocheng, 252000, PR China
| | - Heng-Chen Yao
- Department of Cardiology, Liaocheng People's Hospital, Shandong University, Jinan, Shandong, 250012, PR China; Department of Cardiology, Liaocheng People's Hospital Affiliated to Shandong First Medical University, Liaocheng, Shandong, 252000, PR China.
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Lazaro-Pena MI, Ward ZC, Yang S, Strohm A, Merrill AK, Soto CA, Samuelson AV. HSF-1: Guardian of the Proteome Through Integration of Longevity Signals to the Proteostatic Network. FRONTIERS IN AGING 2022; 3:861686. [PMID: 35874276 PMCID: PMC9304931 DOI: 10.3389/fragi.2022.861686] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Accepted: 06/13/2022] [Indexed: 12/15/2022]
Abstract
Discoveries made in the nematode Caenorhabditis elegans revealed that aging is under genetic control. Since these transformative initial studies, C. elegans has become a premier model system for aging research. Critically, the genes, pathways, and processes that have fundamental roles in organismal aging are deeply conserved throughout evolution. This conservation has led to a wealth of knowledge regarding both the processes that influence aging and the identification of molecular and cellular hallmarks that play a causative role in the physiological decline of organisms. One key feature of age-associated decline is the failure of mechanisms that maintain proper function of the proteome (proteostasis). Here we highlight components of the proteostatic network that act to maintain the proteome and how this network integrates into major longevity signaling pathways. We focus in depth on the heat shock transcription factor 1 (HSF1), the central regulator of gene expression for proteins that maintain the cytosolic and nuclear proteomes, and a key effector of longevity signals.
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Affiliation(s)
- Maria I. Lazaro-Pena
- Department of Biomedical Genetics, University of Rochester Medical Center, Rochester, NY, United States
| | - Zachary C. Ward
- Department of Biomedical Genetics, University of Rochester Medical Center, Rochester, NY, United States
| | - Sifan Yang
- Department of Biomedical Genetics, University of Rochester Medical Center, Rochester, NY, United States
- Department of Biology, University of Rochester, Rochester, NY, United States
| | - Alexandra Strohm
- Department of Biomedical Genetics, University of Rochester Medical Center, Rochester, NY, United States
- Department of Environmental Medicine, University of Rochester Medical Center, Rochester, NY, United States
- Toxicology Training Program, University of Rochester Medical Center, Rochester, NY, United States
| | - Alyssa K. Merrill
- Department of Environmental Medicine, University of Rochester Medical Center, Rochester, NY, United States
- Toxicology Training Program, University of Rochester Medical Center, Rochester, NY, United States
| | - Celia A. Soto
- Department of Pathology, University of Rochester Medical Center, Rochester, NY, United States
- Cell Biology of Disease Graduate Program, University of Rochester Medical Center, Rochester, NY, United States
| | - Andrew V. Samuelson
- Department of Biomedical Genetics, University of Rochester Medical Center, Rochester, NY, United States
- *Correspondence: Andrew V. Samuelson,
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Du W, Guo K, Jin H, Sun L, Ruan S, Song Q. Association Between Metabolic Syndrome and Risk of Renal Cell Cancer: A Meta-Analysis. Front Oncol 2022; 12:928619. [PMID: 35832547 PMCID: PMC9271793 DOI: 10.3389/fonc.2022.928619] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Accepted: 05/30/2022] [Indexed: 12/24/2022] Open
Abstract
Background Metabolic syndrome (MetS) has been related to increased risks of a variety of cancers. However, the association between MetS and the risk of renal cell cancer (RCC) remains not fully determined. This meta-analysis was conducted to investigate whether MetS is independently associated with the risk of RCC in adults. Methods Relevant observational studies were obtained by searching PubMed, Embase, Cochrane's Library, and Web of Science databases. Study characteristics and outcome data were extracted independently by two authors. The random-effect model was used for meta-analysis considering the possible influence of between-study heterogeneity. Predefined subgroup analyses were used to evaluate the possible influences of study characteristics on the outcome. Results Eight studies involving 10,601,006 participants contributed to the meta-analysis. Results showed that MetS was independently associated with a higher risk of RCC in adult population (risk ratio [RR]: 1.62, 95% confidence interval [CI]: 1.41 to 1.87, p<0.001; I2 = 85%). Subgroup analyses showed consistent association in men (RR: 1.52, 95% CI: 1.23 to 1.89, p<0.001) and in women (RR: 1.71, 95% CI: 1.28 to 2.27, p<0.001), in Asians (RR: 1.51, 95% CI: 1.25 to 1.83, p<0.001) and in Caucasians (RR: 1.76, 95% CI: 1.46 to 2.12, p<0.001), and in community derived (RR: 1.56, 95% CI: 1.34 to 1.82, p<0.001) and non-community derived population (RR: 1.87, 95% CI: 1.71 to 2.04, p<0.001). Differences in study design or quality score also did not significantly affect the association (p for subgroup difference both >0.05). Conclusions MetS may be independently associated with RCC in adult population.
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Affiliation(s)
- Wurong Du
- The First School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, China
| | - Kaibo Guo
- Department of Oncology, Affiliated Hangzhou First People’s Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Department of Oncology, The Fourth School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, China
| | - Huimin Jin
- Oncology Department, The Second Affiliated Hospital of Zhejiang Chinese Medical University (Xinhua Hospital of Zhejiang Province), Hangzhou, China
| | - Leitao Sun
- The First School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, China
- Department of Medical Oncology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Traditional Chinese Medicine), Hangzhou, China
| | - Shanming Ruan
- The First School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, China
- Department of Medical Oncology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Traditional Chinese Medicine), Hangzhou, China
| | - Qiaoling Song
- The First School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, China
- Education Department, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Traditional Chinese Medicine), Hangzhou, China
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Sikora E, Bielak-Zmijewska A, Mosieniak G. A common signature of cellular senescence; does it exist? Ageing Res Rev 2021; 71:101458. [PMID: 34500043 DOI: 10.1016/j.arr.2021.101458] [Citation(s) in RCA: 55] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 08/25/2021] [Accepted: 09/01/2021] [Indexed: 02/08/2023]
Abstract
Cellular senescence is a stress response, which can be evoked in all type of somatic cells by different stimuli. Senescent cells accumulate in the body and participate in aging and aging-related diseases mainly by their secretory activity, commonly known as senescence-associated secretory phenotype-SASP. Senescence is typically described as cell cycle arrest. This definition stems from the original observation concerning limited cell division potential of human fibroblasts in vitro. At present, the process of cell senescence is attributed also to cancer cells and to non-proliferating post-mitotic cells. Many cellular signaling pathways and specific and unspecific markers contribute to the complex, dynamic and heterogeneous phenotype of senescent cells. Considering the diversity of cells that can undergo senescence upon different inducers and variety of mechanisms involved in the execution of this process, we ask if there is a common signature of cell senescence. It seems that cell cycle arrest in G0, G1 or G2 is indispensable for cell senescence; however, to ensure irreversibility of divisions, the exit from the cell cycle to the state, which we call a GS (Gero Stage), is necessary. The DNA damage, changes in nuclear architecture and chromatin rearrangement are involved in signaling pathways leading to altered gene transcription and secretion of SASP components. Thus, nuclear changes and SASP are vital features of cell senescence that, together with temporal arrest in the cell cycle (G1 or/and G2), which may be followed by polyploidisation/depolyploidisation or exit from the cell cycle leading to permanent proliferation arrest (GS), define the signature of cellular senescence.
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Braun K, Häberle BM, Wittmann MT, Lie DC. Enriched environment ameliorates adult hippocampal neurogenesis deficits in Tcf4 haploinsufficient mice. BMC Neurosci 2020; 21:50. [PMID: 33228529 PMCID: PMC7684915 DOI: 10.1186/s12868-020-00602-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Accepted: 11/16/2020] [Indexed: 12/11/2022] Open
Abstract
Background Transcription factor 4 (TCF4) has been linked to human neurodevelopmental disorders such as intellectual disability, Pitt-Hopkins Syndrome (PTHS), autism, and schizophrenia. Recent work demonstrated that TCF4 participates in the control of a wide range of neurodevelopmental processes in mammalian nervous system development including neural precursor proliferation, timing of differentiation, migration, dendritogenesis and synapse formation. TCF4 is highly expressed in the adult hippocampal dentate gyrus – one of the few brain regions where neural stem / progenitor cells generate new functional neurons throughout life. Results We here investigated whether TCF4 haploinsufficiency, which in humans causes non-syndromic forms of intellectual disability and PTHS, affects adult hippocampal neurogenesis, a process that is essential for hippocampal plasticity in rodents and potentially in humans. Young adult Tcf4 heterozygote knockout mice showed a major reduction in the level of adult hippocampal neurogenesis, which was at least in part caused by lower stem/progenitor cell numbers and impaired maturation and survival of adult-generated neurons. Interestingly, housing in an enriched environment was sufficient to enhance maturation and survival of new neurons and to substantially augment neurogenesis levels in Tcf4 heterozygote knockout mice. Conclusion The present findings indicate that haploinsufficiency for the intellectual disability- and PTHS-linked transcription factor TCF4 not only affects embryonic neurodevelopment but impedes neurogenesis in the hippocampus of adult mice. These findings suggest that TCF4 haploinsufficiency may have a negative impact on hippocampal function throughout adulthood by impeding hippocampal neurogenesis.
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Affiliation(s)
- Katharina Braun
- Institute of Biochemistry, Emil Fischer Center, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054, Erlangen, Germany
| | - Benjamin M Häberle
- Institute of Biochemistry, Emil Fischer Center, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054, Erlangen, Germany
| | - Marie-Theres Wittmann
- Institute of Human Genetics, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054, Erlangen, Germany.
| | - D Chichung Lie
- Institute of Biochemistry, Emil Fischer Center, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91054, Erlangen, Germany.
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Vitale G, Pellegrino G, Vollery M, Hofland LJ. ROLE of IGF-1 System in the Modulation of Longevity: Controversies and New Insights From a Centenarians' Perspective. Front Endocrinol (Lausanne) 2019; 10:27. [PMID: 30774624 PMCID: PMC6367275 DOI: 10.3389/fendo.2019.00027] [Citation(s) in RCA: 87] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2018] [Accepted: 01/15/2019] [Indexed: 12/19/2022] Open
Abstract
Human aging is currently defined as a physiological decline of biological functions in the body with a continual adaptation to internal and external damaging. The endocrine system plays a major role in orchestrating cellular interactions, metabolism, growth, and aging. Several in vivo studies from worms to mice showed that downregulated activity of the GH/IGF-1/insulin pathway could be beneficial for the extension of human life span, whereas results are contradictory in humans. In the present review, we discuss the potential role of the IGF-1 system in modulation of longevity, hypothesizing that the endocrine and metabolic adaptation observed in centenarians and in mammals during caloric restriction may be a physiological strategy for extending lifespan through a slower cell growing/metabolism, a better physiologic reserve capacity, a shift of cellular metabolism from cell proliferation to repair activities and a decrease in accumulation of senescent cells. Therefore, understanding of the link between IGF-1/insulin system and longevity may have future clinical applications in promoting healthy aging and in Rehabilitation Medicine.
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Affiliation(s)
- Giovanni Vitale
- Laboratorio Sperimentale di Ricerche di Neuroendocrinologia Geriatrica ed Oncologica, Istituto Auxologico Italiano IRCCS, Milan, Italy
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
- *Correspondence: Giovanni Vitale
| | - Giuseppe Pellegrino
- Faculty of Medicine, University of Campania “Luigi Vanvitelli”, Naples, Italy
| | | | - Leo J. Hofland
- Division Endocrinology, Department of Internal Medicine, Erasmus Medical Center, Rotterdam, Netherlands
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Hu C, He X, Li X, Sun L, Zheng C, Liang Q, Lv Z, Huang Z, Qi K, Yuan H, Zhu X, Yang Y, Zhou Q, Yang Z. Comparative Study for the Association of Mitochondrial Haplogroup F+ and Metabolic Syndrome between Longevity and Control Population in Guangxi Zhuang Autonomous Region, China. J Nutr Health Aging 2018; 22:302-307. [PMID: 29380859 DOI: 10.1007/s12603-017-0915-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
BACKGROUND Our previous study suggested that mitochondrial haplogroup F (mtDNA F) was a longevity-associated biomarker, but the effect of mitochondrial haplogroup F on longevity individuals with metabolic syndrome (MetS) was not clear. Thus we explored the association between mtDNA F and MetS among longevity and control population in Guangxi Zhuang Autonomous Region, China. METHOD A total of 793 individuals consisting of 307 long-lived participants and 486 local healthy controls were involved in this study. Genotypes of mtDNA F were amplified by polymerase chain reaction and Sanger sequenced. MetS was defined according to the revised National Cholesterol Education Program's Adult Treatment Panel III (NCEP ATPIII ) criteria. RESULTS The prevalence of MetS in longevity group (28.0%) was higher than that (18.5%) in control group (P=0.002). Through the case-control stratify analysis, the prevalence of MetS in mtDNA F+ longevity individuals (29.8%) was 4.6 fold higher than that (5.3%) in local control group (P<0.001). However, after further longevity-only analysis, no association between MetS and mtDNA F+ in longevity group was observed (P=0.167). Following same analysis of two variables in control group, we found that the prevalence of MetS in mtDNA F- (95.8%) was higher than that in mtDNA F+ (5.3%); conversely, the prevalence of non-metabolic syndrome (NMetS) in mtDNA F+ (94.7%) was markedly higher than that in mtDNA F- (4.2%) (P<0.001). CONCLUSION We demonstrated that mtDNA F+ , as a molecuar biomarker, might not only confer beneficial effect to resistance against MetS but also function as a positive factor for long-life span among the population in Guangxi Zhuang Autonomous Region, China.
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Affiliation(s)
- C Hu
- Ze Yang, Ph.D. The MOH key Laboratory of Geriatrics, Beijing Hospital, National Center of Gerontology. No.1 DaHua Road, Dong Dan, Beijing 100730, P.R.China,
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Darabi H, Ostovar A, Raeisi A, Kalantarhormozi MR, Assadi M, Akbarzadeh S, Momeni S, Dobaradaran S, Vahdat K, Nabipour I. The correlation between insulin-like growth factor 1 (IGF-1) and novel adipocytokines in postmenopausal women: A population-based study. Endocr Res 2017; 42:191-197. [PMID: 28287842 DOI: 10.1080/07435800.2017.1292523] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The adipocytokines and insulin-like growth factor 1 (IGF-1) are involved in insulin resistance, the cardiometabolic syndrome, and atherosclerosis. Therefore, investigating the relationship between circulating levels of the novel adipocytokines and IGF-1 is worthwhile. The correlation between IGF-1, visfatin, and omentin-1 has not been adequately investigated. In a population-based study, 324 postmenopausal women were randomly selected. Circulating IGF-1, visfatin, omentin-1, adiponectin, and high-sensitivity C-reactive protein (hs-CRP) levels were measured with the highly specific enzyme-linked immunosorbent assay method. In multiple regression analyses adjusted for alkaline phosphatase, osteocalcin, and hs-CRP, circulating IGF-1 was significantly correlated with visfatin levels (standardized β coefficient [β] = 0.13, partial correlation coefficient [r] = 0.12, p = 0.028). The significant positive correlation between serum IGF-1 and visfatin levels remained after additional adjustments for age and BMI (β = 0.12, r = 0.12, p = 0.025), metabolic syndrome (β = 0.13, r = 0.12, p = 0.021), and type 2 diabetes mellitus (β = 0.13, r = 0.12, p = 0.026). No significant correlations were found between IGF-1, adiponectin, and omentin-1. There is a significant correlation between serum IGF-1 and visfatin levels in postmenopausal women beyond metabolic syndrome, type 2 diabetes, bone formation markers, and hs-CRP levels. The observed correlation between higher circulating IGF-1 and the higher visfatin levels might be a physiological compensation and adaptation to protect against visfatin-induced proinflammatory effects.
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Affiliation(s)
- Hossein Darabi
- a Department of Endocrine Disorders, The Persian Gulf Tropical Medicine Research Centre , The Persian Gulf Biomedical Sciences Research Institute, Bushehr University of Medical Sciences , Bushehr , Iran
| | - Afshin Ostovar
- a Department of Endocrine Disorders, The Persian Gulf Tropical Medicine Research Centre , The Persian Gulf Biomedical Sciences Research Institute, Bushehr University of Medical Sciences , Bushehr , Iran
| | - Alireza Raeisi
- a Department of Endocrine Disorders, The Persian Gulf Tropical Medicine Research Centre , The Persian Gulf Biomedical Sciences Research Institute, Bushehr University of Medical Sciences , Bushehr , Iran
| | - Mohammad Reza Kalantarhormozi
- a Department of Endocrine Disorders, The Persian Gulf Tropical Medicine Research Centre , The Persian Gulf Biomedical Sciences Research Institute, Bushehr University of Medical Sciences , Bushehr , Iran
| | - Majid Assadi
- b The Persian Gulf Nuclear Medicine Research Centre, The Persian Gulf Biomedical Sciences Research Institute, Bushehr University of Medical Sciences , Bushehr , Iran
| | - Samad Akbarzadeh
- a Department of Endocrine Disorders, The Persian Gulf Tropical Medicine Research Centre , The Persian Gulf Biomedical Sciences Research Institute, Bushehr University of Medical Sciences , Bushehr , Iran
| | - Safieh Momeni
- c Department of Biochemistry, The Persian Gulf Marine Biotechnology Research Centre , The Persian Gulf Biomedical Sciences Research Institute, Bushehr University of Medical Sciences , Bushehr , Iran
| | - Sina Dobaradaran
- c Department of Biochemistry, The Persian Gulf Marine Biotechnology Research Centre , The Persian Gulf Biomedical Sciences Research Institute, Bushehr University of Medical Sciences , Bushehr , Iran
| | - Katayoun Vahdat
- a Department of Endocrine Disorders, The Persian Gulf Tropical Medicine Research Centre , The Persian Gulf Biomedical Sciences Research Institute, Bushehr University of Medical Sciences , Bushehr , Iran
| | - Iraj Nabipour
- a Department of Endocrine Disorders, The Persian Gulf Tropical Medicine Research Centre , The Persian Gulf Biomedical Sciences Research Institute, Bushehr University of Medical Sciences , Bushehr , Iran
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Song X, Teng J, Wang A, Li X, Wang J, Liu Y. Positive correlation between serum IGF-1 and HDL-C in type 2 diabetes mellitus. Diabetes Res Clin Pract 2016; 118:44-9. [PMID: 27322526 DOI: 10.1016/j.diabres.2016.04.056] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2015] [Revised: 02/24/2016] [Accepted: 04/21/2016] [Indexed: 01/12/2023]
Abstract
OBJECTIVE Dyslipidemia and low levels of high density lipoprotein cholesterol (HDL-C) can increase the risk of atherosclerosis development in people with type 2 diabetes mellitus (T2DM). This study aimed to investigate the correlation between serum HDL-C and insulin-like growth factor-1 (IGF-1), which are crucially involved inT2DM. METHODS Serum concentrations of IGF-1, total cholesterol, triglyceride, low density lipoprotein cholesterol, and HDL-C were measured in 498 participants with T2DM without any lipid-modifying medicine prior to study. Participants were divided into three groups according to the 25th and 75th percentile of IGF-1 levels: low IGF-1 group (G1), middle IGF-1 group (G2), and high IGF-1 group (G3), respectively. Serum levels of HDL-C were compared among the three groups. RESULTS G1 presented a higher body mass index and higher fasting plasma insulin (FINS) than G2 (P<0.05), yet a lower HDL-C than G2 (P<0.05). Moreover, HDL-C, postprandial blood glucose, FINS, postprandial plasma insulin (PINS), hip circumference ratio, glycated hemoglobin A1c were significantly lower in G3 than in G2 (P<0.05). After adjusting for age and gender, serum levels of IGF-1 were negatively correlated with age, duration of disease, waist circumference, FINS, PINS, and insulin resistance, but positively correlated with HDL-C. Each increase of 2.71ng/dl in IGF-I concentration was associated with an increase of 1.34mg/dl in HDL level. CONCLUSIONS IGF-1 serum level in people with T2DM is correlated positively with HDL-C.
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Affiliation(s)
- Xiaofei Song
- Department of Endocrinology, 306 Hospital of PLA, Beijing 100101, China
| | - Jiali Teng
- Internal Medicine 2, Dezhou People's Hospital, Shandong Province 253000, China
| | - Aihong Wang
- Department of Endocrinology, 306 Hospital of PLA, Beijing 100101, China
| | - Xiang Li
- Department of Endocrinology, 306 Hospital of PLA, Beijing 100101, China
| | - Jing Wang
- Department of Endocrinology, 306 Hospital of PLA, Beijing 100101, China
| | - Yanjun Liu
- Department of Endocrinology, 306 Hospital of PLA, Beijing 100101, China.
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Ostan R, Bucci L, Cevenini E, Palmas MG, Pini E, Scurti M, Vescovini R, Caruso C, Mari D, Vitale G, Franceschi C, Monti D. Metabolic syndrome in the offspring of centenarians: focus on prevalence, components, and adipokines. AGE (DORDRECHT, NETHERLANDS) 2013; 35:1995-2007. [PMID: 23138631 PMCID: PMC3776117 DOI: 10.1007/s11357-012-9483-x] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2012] [Accepted: 10/17/2012] [Indexed: 05/18/2023]
Abstract
With aging, an increased prevalence of a clustering of metabolic abnormalities has been observed. These abnormalities include obesity, dyslipidemia, hypertension, and insulin resistance and are collectively known as metabolic syndrome (MetS), a low-grade, systemic, inflammatory condition associated with an increased risk of cardiovascular disease, diabetes, and other adverse health outcomes. A number of studies have demonstrated that centenarians' offspring have a significant survival advantage and a lower risk of developing the most important age-related diseases. They therefore represent one of the best models with which to study the familiar component of human longevity. The aim of this study was to determine if the offspring of centenarians (n = 265 subjects) showed a different prevalence of MetS in comparison to the offspring of non-long-lived parents (controls, n = 101 subjects). In addition, we assessed whether centenarians' offspring showed particular features of MetS and a distinct regulation of circulating adipokines, cytokines, and metabolic mediators. Although the prevalence of MetS was quite similar both in the offspring of centenarians and the controls, MetS-affected centenarians' offspring seemed healthier, more functionally fit, and had lower resistin levels. MetS prevalence did not change in centenarians' offspring across resistin, IGF-1, and resistin/IGF-1 ratio tertiles. On the other hand, in controls, MetS prevalence strongly increased across resistin tertiles and in the third resistin/IGF-1 ratio tertile, indicating a dramatic increase in MetS prevalence when the ratio between these two factors is unbalanced, with high levels of resistin and low levels of IGF-1.
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Affiliation(s)
- R. Ostan
- />Department of Experimental Pathology, University of Bologna, Via San Giacomo, 12, 40126 Bologna, Italy
| | - L. Bucci
- />Department of Experimental Pathology, University of Bologna, Via San Giacomo, 12, 40126 Bologna, Italy
| | - E. Cevenini
- />Department of Experimental Pathology, University of Bologna, Via San Giacomo, 12, 40126 Bologna, Italy
| | - M. G. Palmas
- />Department of Experimental Pathology, University of Bologna, Via San Giacomo, 12, 40126 Bologna, Italy
| | - E. Pini
- />Department of Experimental Pathology, University of Bologna, Via San Giacomo, 12, 40126 Bologna, Italy
| | - M. Scurti
- />Department of Experimental Pathology, University of Bologna, Via San Giacomo, 12, 40126 Bologna, Italy
| | - R. Vescovini
- />Department of Internal Medicine and Biomedical Sciences, University of Parma, Via Gramsci, 14, 43126 Parma, Italy
| | - C. Caruso
- />Immunosenescence Unit, Department of Pathobiology and Biomedical Methodologies, University of Palermo, Corso Tukory, 211, 90100 Palermo, Italy
| | - D. Mari
- />Department of Medical Sciences, University of Milan, Via F. Sforza, 35, 20122 Milano, Italy
- />Geriatric Unit IRCCS Ca’ Granda Foundation Maggiore Policlinico Hospital, 20122 Milan, Italy
| | - G. Vitale
- />Department of Medical Sciences, University of Milan, Via F. Sforza, 35, 20122 Milano, Italy
- />IRCCS Istituto Auxologico Italiano, Milan, Italy
| | - C. Franceschi
- />Department of Experimental Pathology, University of Bologna, Via San Giacomo, 12, 40126 Bologna, Italy
| | - D. Monti
- />Department of Experimental Pathology and Oncology, University of Florence, Viale Morgagni, 50, 50134 Florence, Italy
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Wu X, Huang Z, Wu R, Zhong Z, Wei Q, Wang H, Diao F, Wang J, Zheng L, Zhao J, Zhang J. The comparison of glycometabolism parameters and lipid profiles between drug-naïve, first-episode schizophrenia patients and healthy controls. Schizophr Res 2013; 150:157-62. [PMID: 23998954 DOI: 10.1016/j.schres.2013.07.051] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2013] [Revised: 07/18/2013] [Accepted: 07/28/2013] [Indexed: 11/26/2022]
Abstract
To compare the difference in body mass index (BMI), waist-to-hip ratio (WHR), and glucose and lipid metabolism parameters between drug-naïve, first-episode schizophrenia patients and healthy controls matched for age, ethnicity and gender, we conducted a test including BMI, WHR, and fasting glucose and lipid metabolism parameters in both 70 drug-naïve, first-episode schizophrenia patients, having not a single day of cumulative exposure to antipsychotic medications and 44 normal healthy controls at baseline. Student's t tests (two tailed) were conducted to examine between group differences. We found that drug-naïve first-episode schizophrenia patients had higher insulin, insulin resistance and C-peptide levels, and had lower total cholesterol (TC), high density lipoprotein cholesterol (HDL-c) and apolipoproteinA1 levels. Simultaneously, drug-naïve, first-episode schizophrenia patients show a potential tendency of WHR enlargement, although there were no statistically significant differences between groups (mean=0.82, SD=0.06, for the patients versus mean=0.79, SD=0.06, for the health subjects). These results suggest that drug-naïve, first-episode schizophrenia patients do differ from healthy controls in their fasting glycometabolism parameters and lipid profiles, including fasting plasma levels of insulin, C-peptide, TC, HDL-c, and apolipoproteinA1, and patients are more insulin resistant before the onset of antipsychotic medication treatment.
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Affiliation(s)
- Xiaoli Wu
- Mental Health Institute of The Second Xiangya Hospital, Key Laboratory of Psychiatry and Mental Health of Hunan Province, Central South University, Changsha, Hunan 410011, PR China; Psychiatry Department, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong 510630, PR China
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13
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Carter S, Caron A, Richard D, Picard F. Role of leptin resistance in the development of obesity in older patients. Clin Interv Aging 2013; 8:829-44. [PMID: 23869170 PMCID: PMC3706252 DOI: 10.2147/cia.s36367] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Obesity is a global epidemic associated with aging-like cellular processes; in both aging and obesity, resistance to hormones such as insulin and leptin can be observed. Leptin is a circulating hormone/cytokine with central and peripheral effects that is released mainly by subcutaneous white adipose tissue. Centrally, leptin controls food intake, energy expenditure, and fat distribution, whereas it controls (among several others) insulin sensitivity, free fatty acids (FFAs) oxidation, and lipolysis in the periphery. Aging is associated with important changes in both the distribution and the composition of adipose tissue. Fat is redistributed from the subcutaneous to the visceral depot and increased inflammation participates in adipocyte dysfunction. This redistribution of adipose tissue in favor of visceral fat influences negatively both longevity and healthy aging as shown in numerous animal models. These modifications observed during aging are also associated with leptin resistance. This resistance blunts normal central and peripheral functions of leptin, which leads to a decrease in neuroendocrine function and insulin sensitivity, an imbalance in energy regulation, and disturbances in lipid metabolism. Here, we review how age-related leptin resistance triggers metabolic disturbances and affects the longevity of obese patients. Furthermore, we discuss the potential impacts of leptin resistance on the decline of brown adipose tissue thermogenesis observed in elderly individuals.
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Affiliation(s)
- Sophie Carter
- Faculty of Pharmacy, Department of Anatomy and Physiology, Université Laval, Québec, QC, Canada
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Krentz AJ, Viljoen A, Sinclair A. Insulin resistance: a risk marker for disease and disability in the older person. Diabet Med 2013; 30:535-48. [PMID: 23173973 DOI: 10.1111/dme.12063] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2012] [Accepted: 11/06/2012] [Indexed: 12/24/2022]
Abstract
Clinical metabolic studies have demonstrated that insulin action declines progressively with age in humans. In addition to its close association with Type 2 diabetes, which reduces life expectancy in older people, age-related insulin resistance is implicated in pathogenesis of several highly prevalent disorders for which ageing is a major risk factor. These include atherosclerotic cardiovascular disease, dementia, frailty and cancer. Accordingly, insulin resistance may be viewed as biomarker of age-related ill health and reduced lifespan. The rapidly rising number of older people, coupled with a high prevalence of insulin resistance resulting from obesity and sedentary lifestyles, presents unprecedented public health and societal challenges. Studies of centenarians have shown that preserved whole-body sensitivity to insulin is associated with longevity. The mechanisms through which insulin action is associated with age-related diseases remain unclear. Changes in body composition, i.e. sarcopenia and excess adiposity, may be more potent than age per se. Moreover, the impact of insulin resistance has been difficult to disentangle from the clustering of vascular risk factors that co-segregate with the insulin resistance-hyperinsulinaemia complex. Potentially modifiable mediators of age-related changes in insulin sensitivity include alterations in adipocytokines, impaired skeletal myocyte mitochondrial function and brown fat activity. The hypothesis that improving or maintaining insulin sensitivity preserves health and extends lifespan merits further evaluation. Practical non-pharmacological interventions directed against age-related insulin resistance remain underdeveloped. Novel metabolically active pharmacological agents with theoretical implications for some age-related disorders are entering clinical trials. However, recent adverse experiences with the thiazolidinediones suggest the need for a cautious approach to the use of insulin sensitizing drugs in older people. This could be particularly important in the absence of diabetes where the risk to benefit analysis may be less favourable.
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Affiliation(s)
- A J Krentz
- Institute of Diabetes for Older People, Bedfordshire & Hertfordshire Postgraduate Medical School, University of Bedfordshire, Luton, UK.
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15
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Bruchim I, Werner H. Targeting IGF-1 signaling pathways in gynecologic malignancies. Expert Opin Ther Targets 2013; 17:307-20. [PMID: 23294364 DOI: 10.1517/14728222.2013.749863] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
INTRODUCTION The signaling pathways of the insulin-like growth factors (IGF) have been implicated in the etiology of a number of epithelial neoplasms including prostate, breast, colon and more recently, gynecologic cancers. The insulin-like growth factor-1 receptor (IGF-1R) is expressed in most transformed cells, where it displays potent anti-apoptotic, cell-survival and potentially, transforming activities. IGF-1R expression and activation are typical hallmarks associated with tumor initiation and progression. Multiple approaches have been used to abrogate IGF-1R signaling for targeted cancer therapy including antibodies and small molecule tyrosine kinase inhibitors. These novel IGF-1R targeting agents have produced significant experimental and clinical results in many cancers and generated considerable optimism in the field of cancer therapy. AREAS COVERED The authors will review important research advances regarding the role of the IGF axis in cancer, particularly preclinical and clinical studies in cervical, uterine and ovarian cancers. The significance of tumor expression and circulating levels of the IGF pathway as well as targeting therapies of the IGF axis in the gynecologic cancers will be discussed. EXPERT OPINION Accumulating data confirm that the IGF-1R pathway has an important role in gynecologic cancers and in vivo and in vitro studies have shown a significant impact of IGF-1R targeted therapies in these malignancies, mainly ovarian and endometrial cancers. Currently, ongoing preclinical and clinical trials are evaluating the efficacy of IGF-1R targeting. A better understanding of the complex mechanisms underlying the regulation of the IGF system will improve the ability to develop effective treatment modalities for these malignancies.
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Affiliation(s)
- Ilan Bruchim
- Department of Human Molecular Genetics and Biochemistry, Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
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16
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Sultan S, Hynes N. Cardiovascular disease: primary prevention, disease modulation and regenerative therapy. Vascular 2012; 20:243-50. [PMID: 23019607 DOI: 10.1258/vasc.2012.ra0062] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Cardiovascular primary prevention and regeneration programs are the contemporary frontiers in functional metabolic vascular medicine. This novel science perspective harnesses our inherent ability to modulate the interface between specialized gene receptors and bioavailable nutrients in what is labeled as the nutrient-gene interaction. By mimicking a natural process through the conveyance of highly absorbable receptor specific nutrients, it is feasible to accelerate cell repair and optimize mitochondrial function, thereby achieving cardiovascular cure. We performed a comprehensive review of PubMed, EMBASE and Cochrane Review databases for articles relating to cardiovascular regenerative medicine, nutrigenomics and primary prevention, with the aim of harmonizing their roles within contemporary clinical practice. We searched in particular for large-scale randomized controlled trials on contemporary cardiovascular pharmacotherapies and their specific adverse effects on metabolic pathways which feature prominently in cardiovascular regenerative programs, such as nitric oxide and glucose metabolism. Scientific research on 'cardiovascular-free' centenarians delineated that low sugar and low insulin are consistent findings. As we age, our insulin level increases. Those who can decelerate the rapidity of this process are prompting their cardiovascular rejuvenation. It is beginning to dawn on some clinicians that contemporary treatments are not only failing to impact on our most prevalent diseases, but they may be causing more damage than good. Primary prevention programs are crucial elements for a better outcome. Cardiovascular primary prevention and regeneration programs have enhanced clinical efficacy and quality of life and complement our conventional endovascular practice.
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Affiliation(s)
- Sherif Sultan
- Department of Vascular and Endovascular Surgery, Western Vascular Institute, University College Hospital Galway, Ireland.
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Affiliation(s)
- Susan A. Marsh
- From the Program in Nutrition and Exercise Physiology (S.A.M.), College of Pharmacy, Washington State University, Spokane, WA; Biomedical Sciences (A.J.D.), College of Osteopathic Medicine, University of New England, Biddeford, ME
| | - Amy J. Davidoff
- From the Program in Nutrition and Exercise Physiology (S.A.M.), College of Pharmacy, Washington State University, Spokane, WA; Biomedical Sciences (A.J.D.), College of Osteopathic Medicine, University of New England, Biddeford, ME
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18
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Rozing MP, Mooijaart SP, Beekman M, Wijsman CA, Maier AB, Bartke A, Westendorp RG, Slagboom EP, van Heemst D. C-reactive protein and glucose regulation in familial longevity. AGE (DORDRECHT, NETHERLANDS) 2011; 33:623-630. [PMID: 21246407 PMCID: PMC3220397 DOI: 10.1007/s11357-011-9206-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2010] [Accepted: 01/03/2011] [Indexed: 05/30/2023]
Abstract
Earlier, we showed that the offspring from exceptionally long-lived families have a more favorable glucose metabolism when compared with controls. As chronic low-grade inflammation has been regarded as a strong risk factor for insulin resistance, we evaluated if and to what extent the favorable glucose metabolism in offspring from long-lived families could be explained by differences in subclinical inflammation, as estimated from circulating levels of C-reactive protein. We found no difference between the two groups in C-reactive protein levels or in the distribution of C-reactive protein haplotypes. However, among controls higher levels of C-reactive protein were related to higher glucose levels, whereas among offspring levels of C-reactive protein were unrelated to glucose levels. It is a limitation of the current study that its cross-sectional nature does not allow for assessment of cause-effect relationships. One possible interpretation of these data is that the offspring from long-lived families might be able to regulate glucose levels more tightly under conditions of low-grade inflammation. To test this hypothesis, our future research will be focused on assessing the robustness of insulin sensitivity in response to various challenges in offspring from long-lived families and controls.
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Affiliation(s)
- Maarten P. Rozing
- Department of Gerontology and Geriatrics, Leiden University Medical Center, P.O. Box 9600, 2300 Leiden, the Netherlands
- Netherlands Consortium of Healthy Aging (NCHA), Leiden, the Netherlands
| | - Simon P. Mooijaart
- Department of Gerontology and Geriatrics, Leiden University Medical Center, P.O. Box 9600, 2300 Leiden, the Netherlands
- Netherlands Consortium of Healthy Aging (NCHA), Leiden, the Netherlands
| | - Marian Beekman
- Netherlands Consortium of Healthy Aging (NCHA), Leiden, the Netherlands
- Department of Molecular Epidemiology, Leiden University Medical Center, P.O. Box 9600, 2300 Leiden, the Netherlands
| | - Carolien A. Wijsman
- Department of Gerontology and Geriatrics, Leiden University Medical Center, P.O. Box 9600, 2300 Leiden, the Netherlands
- Netherlands Consortium of Healthy Aging (NCHA), Leiden, the Netherlands
| | - Andrea B. Maier
- Department of Gerontology and Geriatrics, Leiden University Medical Center, P.O. Box 9600, 2300 Leiden, the Netherlands
- Netherlands Consortium of Healthy Aging (NCHA), Leiden, the Netherlands
| | - Andrzej Bartke
- Department of Internal Medicine, Southern Illinois University School of Medicine, P.O. Box 19636, Springfield, IL 62794-9628 USA
| | - Rudi G.J. Westendorp
- Department of Gerontology and Geriatrics, Leiden University Medical Center, P.O. Box 9600, 2300 Leiden, the Netherlands
- Netherlands Consortium of Healthy Aging (NCHA), Leiden, the Netherlands
| | - Eline P. Slagboom
- Netherlands Consortium of Healthy Aging (NCHA), Leiden, the Netherlands
- Department of Molecular Epidemiology, Leiden University Medical Center, P.O. Box 9600, 2300 Leiden, the Netherlands
| | - Diana van Heemst
- Department of Gerontology and Geriatrics, Leiden University Medical Center, P.O. Box 9600, 2300 Leiden, the Netherlands
- Netherlands Consortium of Healthy Aging (NCHA), Leiden, the Netherlands
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Oh J, Kim JY, Park S, Youn JC, Son NH, Shin DJ, Lee SH, Kang SM, Jee SH, Jang Y. The relationship between insulin-like growth factor-1 and metabolic syndrome, independent of adiponectin. Clin Chim Acta 2011; 413:506-10. [PMID: 22133783 DOI: 10.1016/j.cca.2011.11.015] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2011] [Revised: 10/31/2011] [Accepted: 11/15/2011] [Indexed: 12/31/2022]
Abstract
BACKGROUND Insulin-like growth factor-1 (IGF-1) is associated with obesity and aging, and was recently linked to metabolic syndrome (MetS) and insulin resistance. However, little is known about the relationship between IGF-1 and adiponectin (adiponectin), another marker of MetS. METHODS We measured the plasma IGF-1 and adiponectin levels of 3099 subjects (1869 males, 55.9±10.8 y). We applied the Korean-modified International Diabetes Foundation (k-IDF) criteria for determination of, and risk assessment for, MetS. RESULTS K-IDF criteria-based MetS occurred in 37.0% (n=1146) of patients. IGF-1 (91.5 vs. 97.3 ng/ml, p<0.001) and adiponectin (3.95 vs. 4.23 μg/ml, p<0.001) were significantly lower in MetS patients than without MetS. Lower IGF-1 was associated with increasing numbers of MetS abnormalities, independent of adiponectin (p for trend<0.001, F=12.615, p<0.001 in ANCOVA). MetS prevalence in individuals with both high IGF-1 and adiponectin levels (6.7%, n=206) was significantly lower than in other groups. Both high IGF-1 and adiponectin group was associated with reduced MetS risk after adjusting for other confounding factors (OR 0.694, 95% CI 0.493-0.977, p=0.036). CONCLUSIONS IGF-1 was associated with MetS independent of adiponectin in our study. The independent relationship between IGF-1 and MetS provides insight into the pathophysiologic mechanisms of MetS.
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Affiliation(s)
- Jaewon Oh
- Cardiology Division, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
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20
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Akanji AO, Smith RJ. The insulin-like growth factor system, metabolic syndrome, and cardiovascular disease risk. Metab Syndr Relat Disord 2011; 10:3-13. [PMID: 22103319 DOI: 10.1089/met.2011.0083] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
The metabolic syndrome is a combination of metabolic and clinical features that aggregate in individuals and increase cardiovascular disease (CVD) risk considerably. It is believed, although sometimes controversially, that the underlying basis for this syndrome is insulin resistance (IR) and accompanying compensatory hyperinsulinemia. Insulin and insulin-like growth factors (IGFs) have significant homology and interact with differing affinity with the same receptors. Therefore, their actions can be complementary, and this becomes particularly significant clinico-pathologically when their circulating levels are altered. This review of currently available information attempts to answer the following questions: (1) Is there any evidence for changes in the components of the IGF system in individuals with established CVD or with increased CVD risk as with the metabolic syndrome? (2) What are the underlying mechanisms for interactions, if any, between insulin and the IGF system, in the genesis of CVD? (3) Can knowledge of the pathophysiological changes in the IGF system observed in macrosomic newborn infants and growth hormone (GH)-treated children and adults explain some of the observations in relation to the IGF system and the metabolic syndrome? (4) Can the experimental and clinical evidence adduced from the foregoing be useful in designing novel therapies for the prevention, treatment, and assignment of prognosis in metabolic syndrome-associated disease, particularly ischemic heart disease? To answer these questions, we have performed a literature review using bibliographies from PubMed, Medline, and Google Scholar published within the last 10 years. We suggest that IGF-1 levels are reduced consistently in individuals with the metabolic syndrome and its components and in those with ischemic CVD. Such changes are also seen with GH deficiency in which these changes are partially reversible with GH treatment. Furthermore, changes are seen in levels and interactions of IGF-binding proteins in these disorders, and some of these changes appear to be independent of IGF-binding capability and could potentially impact on risk for the metabolic syndrome and CVD. The promising therapeutic implications of these observations are also discussed.
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Affiliation(s)
- Abayomi O Akanji
- Diabetes & Endocrinology Unit, Alpert Medical School, Brown University, Providence, Rhode Island, USA.
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21
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Scazzocchio B, Varì R, Filesi C, D’Archivio M, Santangelo C, Giovannini C, Iacovelli A, Silecchia G, Volti GL, Galvano F, Masella R. Cyanidin-3-O-β-glucoside and protocatechuic acid exert insulin-like effects by upregulating PPARγ activity in human omental adipocytes. Diabetes 2011; 60:2234-44. [PMID: 21788573 PMCID: PMC3161313 DOI: 10.2337/db10-1461] [Citation(s) in RCA: 190] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
OBJECTIVE Insulin resistance (IR) represents an independent risk factor for metabolic, cardiovascular, and neoplastic disorders. Preventing/attenuating IR is a major objective to be reached to preserve population health. Because many insulin-sensitizing drugs have shown unwanted side effects, active harmless compounds are sought after. Dietary anthocyanins have been demonstrated to ameliorate hyperglycemia and insulin sensitivity. This study aimed at investigating whether cyanidin-3-O-β-glucoside (C3G) and its metabolite protocatechuic acid (PCA) might have a role in glucose transport activation in human omental adipocytes and 3T3-L1 cells. RESEARCH DESIGN AND METHODS In cells treated with 50 µmol/L C3G and 100 µmol/L PCA, [(3)H]-2-deoxyglucose uptake, GLUT4 translocation by immunoblotting, adiponectin secretion, and peroxisome proliferator-activated receptor-γ (PPARγ) activation by enzyme-linked immunosorbent assay kits were evaluated. Parallel experiments were carried out in murine adipocyte 3T3-L1. To define the role of PPARγ in modulating polyphenol effects, small interfering RNA technique and PPARγ antagonist were used to inhibit transcription factor activity. RESULTS C3G and PCA increased adipocyte glucose uptake (P < 0.05) and GLUT4 membrane translocation (P < 0.01). Significant increases (P < 0.05) in nuclear PPARγ activity, as well as in adiponectin and GLUT4 expressions (P < 0.01), were also shown. It is interesting that PPARγ inhibition counteracted the polyphenol-induced adiponectin and GLUT4 upregulations, suggesting a direct involvement of PPARγ in this process. CONCLUSIONS Our study provides evidence that C3G and PCA might exert insulin-like activities by PPARγ activation, evidencing a causal relationship between this transcription factor and adiponectin and GLUT4 upregulation. Dietary polyphenols could be included in the preventive/therapeutic armory against pathological conditions associated with IR.
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Affiliation(s)
- Beatrice Scazzocchio
- Department of Veterinary Public Health and Food Safety, National Institute of Health, Rome, Italy
| | - Rosaria Varì
- Department of Veterinary Public Health and Food Safety, National Institute of Health, Rome, Italy
| | - Carmelina Filesi
- Department of Veterinary Public Health and Food Safety, National Institute of Health, Rome, Italy
| | - Massimo D’Archivio
- Department of Veterinary Public Health and Food Safety, National Institute of Health, Rome, Italy
| | - Carmela Santangelo
- Department of Veterinary Public Health and Food Safety, National Institute of Health, Rome, Italy
| | - Claudio Giovannini
- Department of Veterinary Public Health and Food Safety, National Institute of Health, Rome, Italy
| | | | | | - Giovanni Li Volti
- Department of Biological Chemistry, Medical Chemistry, and Molecular Biology, University of Catania, Catania, Italy
- Department of Cardiac Surgery, IRCSS, S. Donato Hospital, Milan, Italy
| | - Fabio Galvano
- Department of Biological Chemistry, Medical Chemistry, and Molecular Biology, University of Catania, Catania, Italy
| | - Roberta Masella
- Department of Veterinary Public Health and Food Safety, National Institute of Health, Rome, Italy
- Corresponding author: Roberta Masella,
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23
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Spindler SR. Caloric restriction: from soup to nuts. Ageing Res Rev 2010; 9:324-53. [PMID: 19853062 DOI: 10.1016/j.arr.2009.10.003] [Citation(s) in RCA: 103] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2009] [Revised: 10/07/2009] [Accepted: 10/09/2009] [Indexed: 12/25/2022]
Abstract
Caloric restriction (CR), reduced protein, methionine, or tryptophan diets; and reduced insulin and/or IGFI intracellular signaling can extend mean and/or maximum lifespan and delay deleterious age-related physiological changes in animals. Mice and flies can shift readily between the control and CR physiological states, even at older ages. Many health benefits are induced by even brief periods of CR in flies, rodents, monkeys, and humans. In humans and nonhuman primates, CR produces most of the physiologic, hematologic, hormonal, and biochemical changes it produces in other animals. In primates, CR provides protection from type 2 diabetes, cardiovascular and cerebral vascular diseases, immunological decline, malignancy, hepatotoxicity, liver fibrosis and failure, sarcopenia, inflammation, and DNA damage. It also enhances muscle mitochondrial biogenesis, affords neuroprotection; and extends mean and maximum lifespan. CR rapidly induces antineoplastic effects in mice. Most claims of lifespan extension in rodents by drugs or nutrients are confounded by CR effects. Transcription factors and co-activators involved in the regulation of mitochondrial biogenesis and energy metabolism, including SirT1, PGC-1alpha, AMPK and TOR may be involved in the lifespan effects of CR. Paradoxically, low body weight in middle aged and elderly humans is associated with increased mortality. Thus, enhancement of human longevity may require pharmaceutical interventions.
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Xu P, Sauve AA. Vitamin B3, the nicotinamide adenine dinucleotides and aging. Mech Ageing Dev 2010; 131:287-98. [PMID: 20307564 DOI: 10.1016/j.mad.2010.03.006] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2009] [Revised: 03/07/2010] [Accepted: 03/10/2010] [Indexed: 02/07/2023]
Abstract
Organism aging is a process of time and maturation culminating in senescence and death. The molecular details that define and determine aging have been intensely investigated. It has become appreciated that the process is partly an accumulation of random yet inevitable changes, but it can be strongly affected by genes that alter lifespan. In this review, we consider how NAD(+) metabolism plays important roles in the random patterns of aging, and also in the more programmatic aspects. The derivatives of NAD(+), such as reduced and oxidized forms of NAD(P)(+), play important roles in maintaining and regulating cellular redox state, Ca(2+) stores, DNA damage and repair, stress responses, cell cycle timing and lipid and energy metabolism. NAD(+) is also a substrate for signaling enzymes like the sirtuins and poly-ADP-ribosylpolymerases, members of a broad family of protein deacetylases and ADP-ribosyltransferases that regulate fundamental cellular processes such as transcription, recombination, cell division, proliferation, genome maintenance, apoptosis, stress resistance and senescence. NAD(+)-dependent enzymes are increasingly appreciated to regulate the timing of changes that lead to aging phenotypes. We consider how metabolism, specifically connected with Vitamin B3 and the nicotinamide adenine dinucleotides and their derivatives, occupies a central place in the aging processes of mammals.
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Affiliation(s)
- Ping Xu
- Department of Pharmacology, Weill Medical College of Cornell University, 1300 York Avenue LC216, New York, NY 10065, USA
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Maiti B, Kundranda MN, Spiro TP, Daw HA. The association of metabolic syndrome with triple-negative breast cancer. Breast Cancer Res Treat 2009; 121:479-83. [PMID: 19851862 DOI: 10.1007/s10549-009-0591-y] [Citation(s) in RCA: 104] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2009] [Accepted: 10/08/2009] [Indexed: 01/15/2023]
Abstract
Metabolic syndrome, a conglomerate of obesity, insulin resistance, dyslipidemia, and hypertension has been linked with an increased risk of breast cancer. We investigated the possible association of highly aggressive triple-negative breast cancer and the metabolic syndrome. Information on metabolic syndrome components and tumor characteristics were reviewed in a cohort of 176 patients (including 86 triple-negatives). Retrospective comparison was performed using Pearson Chi-square test or Student's t test for data analysis. A statistically significant association of triple-negative breast cancer with the metabolic syndrome was observed. In accordance with the NCEP (National Cholesterol Education Program) definition, 58.1% of triple-negative patients had metabolic syndrome compared to only 36.7% of non-triple-negative patients (P = 0.004). Consistently, by the AACE (American Association of Clinical Endocrinologists) criteria, 52.3% of triple-negative patients had metabolic syndrome as compared to 34.4% of non-triple-negative patients (P = 0.017). Blood glucose, triglyceride, and HDL levels but not hypertension or BMI (body mass index) showed significant independent association with triple-negative breast cancer. Additionally, triple-negative tumors displayed a significantly higher histological grade and relative paucity of ductal carcinoma in situ (DCIS) when compared to the non-triple-negative tumors (P < 0.001). Our study suggests that metabolic syndrome is significantly more prevalent in triple-negative breast cancer patients as opposed to non-triple-negative patients. Furthermore, triple-negative breast cancer showed a significantly higher histological grade and a relative absence of DCIS. Whether the presence of metabolic syndrome preferentially increases the risk of developing triple-negative-breast cancer remains to be elucidated with future prospective studies.
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Affiliation(s)
- B Maiti
- Department of Internal Medicine, Fairview Hospital, a Cleveland Clinic Hospital, Cleveland, OH, USA.
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Chacón MR, Ceperuelo-Mallafré V, Maymó-Masip E, Mateo-Sanz JM, Arola L, Guitiérrez C, Fernandez-Real JM, Ardèvol A, Simón I, Vendrell J. Grape-seed procyanidins modulate inflammation on human differentiated adipocytes in vitro. Cytokine 2009; 47:137-42. [PMID: 19560935 DOI: 10.1016/j.cyto.2009.06.001] [Citation(s) in RCA: 97] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2009] [Revised: 05/08/2009] [Accepted: 06/02/2009] [Indexed: 02/03/2023]
Abstract
Flavonoids are functional constituents of many fruits and vegetables. Procyanidins are flavonoids with an oligomeric structure, and it has been shown that they can improve the pathological oxidative state of a diabetic situation. To evaluate whether procyanidins can modulate inflammation, an event strongly associated with obesity, diabetes and insulin resistance states, we used human adipocytes (SGBS) and macrophage-like (THP-1) cell lines and administered an extract of grape-seed procyanidins (GSPE). THP-1 and SGBS cells pre-treated with GSPE showed a reduction of IL-6 and MCP-1 expression after an inflammatory stimulus. GSPE stimuli alone modulate adipokine (APM1 and LEP) and cytokine (IL-6 and MCP-1) gene expression. GSPE partially inhibited NF-kappaB translocation to the nucleus in both cell lines. These preliminary findings demonstrate that GSPE reduces the expression of IL-6 and MCP-1 and enhances the production of the anti-inflammatory adipokine adiponectin suggesting that may have a beneficial effect on low-grade inflammatory diseases such obesity and type 2 diabetes.
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Affiliation(s)
- Matilde R Chacón
- Centro de Investigación Biomédica en Red de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), University Hospital of Tarragona, Joan XXIII, IISPV, Universitat Rovira i Virgili, Tarragona, Spain.
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