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Charalambous C, Moon JC, Holly JMP, Chaturvedi N, Hughes AD, Captur G. Declining Levels and Bioavailability of IGF-I in Cardiovascular Aging Associate With QT Prolongation-Results From the 1946 British Birth Cohort. Front Cardiovasc Med 2022; 9:863988. [PMID: 35528832 PMCID: PMC9072634 DOI: 10.3389/fcvm.2022.863988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 03/21/2022] [Indexed: 11/30/2022] Open
Abstract
Background As people age, circulating levels of insulin-like growth factors (IGFs) and IGF binding protein 3 (IGFBP-3) decline. In rat cardiomyocytes, IGF-I has been shown to regulate sarcolemmal potassium channel activity and late sodium current thus impacting cardiac repolarization and the heart rate-corrected QT (QTc). However, the relationship between IGFs and IGFBP-3 with the QTc interval in humans, is unknown. Objectives To examine the association of IGFs and IGFBP-3 with QTc interval in an older age population-based cohort. Methods Participants were from the 1946 Medical Research Council (MRC) National Survey of Health and Development (NSHD) British birth cohort. Biomarkers from blood samples at age 53 and 60-64 years (y, exposures) included IGF-I/II, IGFBP-3, IGF-I/IGFBP-3 ratio and the change (Δ) in marker levels between the 60-64 and 53y sampled timepoints. QTc (outcome) was recorded from electrocardiograms at the 60-64y timepoint. Generalized linear multivariable models with adjustments for relevant demographic and clinical factors, were used for complete-cases and repeated after multiple imputation. Results One thousand four hundred forty-eight participants were included (48.3% men; QTc mean 414 ms interquartile range 26 ms). Univariate analysis revealed an association between low IGF-I and IGF-I/IGFBP-3 ratio at 60-64y with QTc prolongation [respectively: β -0.30 ms/nmol/L, (95% confidence intervals -0.44, -0.17), p < 0.001; β-28.9 ms/unit (-41.93, -15.50), p < 0.001], but not with IGF-II or IGFBP-3. No association with QTc was found for IGF biomarkers sampled at 53y, however both ΔIGF-I and ΔIGF-I/IGFBP-3 ratio were negatively associated with QTc [β -0.04 ms/nmol/L (-0.08, -0.008), p = 0.019; β -2.44 ms/unit (-4.17, -0.67), p = 0.007] while ΔIGF-II and ΔIGFBP-3 showed no association. In fully adjusted complete case and imputed models (reporting latter) low IGF-I and IGF-I/IGFBP-3 ratio at 60-64y [β -0.21 ms/nmol/L (-0.39, -0.04), p = 0.017; β -20.14 ms/unit (-36.28, -3.99), p = 0.015], steeper decline in ΔIGF-I [β -0.05 ms/nmol/L/10 years (-0.10, -0.002), p = 0.042] and shallower rise in ΔIGF-I/IGFBP-3 ratio over a decade [β -2.16 ms/unit/10 years (-4.23, -0.09), p = 0.041], were all independently associated with QTc prolongation. Independent associations with QTc were also confirmed for other previously known covariates: female sex [β 9.65 ms (6.65, 12.65), p < 0.001], increased left ventricular mass [β 0.04 ms/g (0.02, 0.06), p < 0.001] and blood potassium levels [β -5.70 ms/mmol/L (-10.23, -1.18) p = 0.014]. Conclusion Over a decade, in an older age population-based cohort, declining levels and bioavailability of IGF-I associate with prolongation of the QTc interval. As QTc prolongation associates with increased risk for sudden death even in apparently healthy people, further research into the antiarrhythmic effects of IGF-I on cardiomyocytes is warranted.
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Affiliation(s)
- Christos Charalambous
- UCL MRC Unit for Lifelong Health and Ageing, University College London, London, United Kingdom
| | - James C. Moon
- UCL Institute of Cardiovascular Science, University College London, London, United Kingdom
- Cardiac MRI Unit, Barts Heart Centre, London, United Kingdom
| | - Jeff M. P. Holly
- National Institute for Health Research (NIHR) Bristol Nutrition Biomedical Research Unit, Level 3, University Hospitals Bristol Education and Research Centre, Bristol, United Kingdom
- Faculty of Health Sciences, School of Translational Health Sciences, Bristol Medical School, Southmead Hospital, University of Bristol, Bristol, United Kingdom
| | - Nishi Chaturvedi
- UCL MRC Unit for Lifelong Health and Ageing, University College London, London, United Kingdom
| | - Alun D. Hughes
- UCL MRC Unit for Lifelong Health and Ageing, University College London, London, United Kingdom
- UCL Institute of Cardiovascular Science, University College London, London, United Kingdom
| | - Gabriella Captur
- UCL MRC Unit for Lifelong Health and Ageing, University College London, London, United Kingdom
- UCL Institute of Cardiovascular Science, University College London, London, United Kingdom
- Cardiology Department, Centre for Inherited Heart Muscle Conditions, The Royal Free Hospital, London, United Kingdom
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Errafii K, Jayyous A, Arredouani A, Khatib H, Azizi F, Mohammad RM, Abdul-Ghani M, Chikri M. Comprehensive analysis of circulating miRNA expression profiles in insulin resistance and type 2 diabetes in Qatari population. ALL LIFE 2022. [DOI: 10.1080/26895293.2022.2033853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Affiliation(s)
- Khaoula Errafii
- Biochemistry and Clinical Neuroscience Laboratory, Faculty of Medicine and Pharmacy of Fez, Sidi Mohammad Ben Abdullah University, Fes, Morocco
- African Genome Center, Mohamed IV Polytechnic, Benguerir, Morocco
- Qatar Biomedical Research Institute, Hamad Ben Khalifa University, HBKU, Doha, Qatar
| | - Amin Jayyous
- Diabetes and Obesity Clinical Research Center, Hamad General Hospital, Doha, Qatar
| | - Abdelillah Arredouani
- Qatar Biomedical Research Institute, Hamad Ben Khalifa University, HBKU, Doha, Qatar
| | - Hasan Khatib
- Department of Animal Sciences, University of Wisconsin–Madison, Madison, WI, USA
| | - Fouad Azizi
- Interim Translational Research Institute, Academic Health System, Hamad Medical Corporation, Doha, Qatar
| | - Ramzi M. Mohammad
- Interim Translational Research Institute, Academic Health System, Hamad Medical Corporation, Doha, Qatar
| | - Muhammad Abdul-Ghani
- Diabetes and Obesity Clinical Research Center, Hamad General Hospital, Doha, Qatar
- Department of Animal Sciences, University of Wisconsin–Madison, Madison, WI, USA
- Interim Translational Research Institute, Academic Health System, Hamad Medical Corporation, Doha, Qatar
- University of Texas Health Science Center at San Antonio, San Antonio, TX, USA
| | - Mohamed Chikri
- Biochemistry and Clinical Neuroscience Laboratory, Faculty of Medicine and Pharmacy of Fez, Sidi Mohammad Ben Abdullah University, Fes, Morocco
- Qatar Biomedical Research Institute, Hamad Ben Khalifa University, HBKU, Doha, Qatar
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Cadamuro M, Lasagni A, Sarcognato S, Guido M, Fabris R, Strazzabosco M, Strain AJ, Simioni P, Villa E, Fabris L. The Neglected Role of Bile Duct Epithelial Cells in NASH. Semin Liver Dis 2022; 42:34-47. [PMID: 34794182 DOI: 10.1055/s-0041-1739455] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Nonalcoholic fatty liver disease (NAFLD) is the most prevalent liver disease worldwide, and affects 25% of the population in Western countries. NAFLD is the hepatic manifestation of the metabolic syndrome, linked to insulin resistance, which is the common pathogenetic mechanism. In approximately 40% of NAFLD patients, steatosis is associated with necro-inflammation and fibrosis, resulting in nonalcoholic steatohepatitis (NASH), a severe condition that may progress to cirrhosis and liver cancer. Although the hepatocyte represents the main target of the disease, involvement of the bile ducts occurs in a subset of patients with NASH, and is characterized by ductular reaction and activation of the progenitor cell compartment, which incites portal fibrosis and disease progression. We aim to dissect the multiple biological effects that adipokines and metabolic alterations exert on cholangiocytes to derive novel information on the mechanisms driven by insulin resistance, which promote fibro-inflammation and carcinogenesis in NASH.
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Affiliation(s)
| | - Alberto Lasagni
- Division of General Medicine, Padua University-Hospital, Padua, Italy
| | | | - Maria Guido
- Department of Pathology, Azienda ULSS2 Marca Trevigiana, Treviso, Italy.,Department of Medicine (DIMED), University of Padua, Padua, Italy
| | - Roberto Fabris
- Division of Clinica Medica 3, Center for the Study and the Integrated Management of Obesity, Padua University-Hospital, Padua, Italy
| | - Mario Strazzabosco
- Department of Internal Medicine, Digestive Disease Section, Liver Center, Yale University, New Haven, Connecticut
| | - Alastair J Strain
- School of Biosciences, University of Birmingham, Birmingham, United Kingdom
| | - Paolo Simioni
- Division of General Medicine, Padua University-Hospital, Padua, Italy.,Department of Medicine (DIMED), University of Padua, Padua, Italy
| | - Erica Villa
- Gastroenterology Unit, Department of Medical Specialties, University of Modena & Reggio Emilia and Modena University-Hospital, Modena, Italy
| | - Luca Fabris
- Department of Molecular Medicine (DMM), University of Padua, Padua, Italy.,Division of General Medicine, Padua University-Hospital, Padua, Italy.,Department of Internal Medicine, Digestive Disease Section, Liver Center, Yale University, New Haven, Connecticut
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Parental insulin resistance is associated with unhealthy lifestyle behaviours independently of body mass index in children: The Feel4Diabetes study. Eur J Pediatr 2022; 181:2513-2522. [PMID: 35347419 PMCID: PMC9110461 DOI: 10.1007/s00431-022-04449-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 03/12/2022] [Accepted: 03/16/2022] [Indexed: 02/02/2023]
Abstract
UNLABELLED Parental health is associated with children's health and lifestyles. Thus, the aim of the present study was to assess lifestyle behaviours of children of parents with insulin resistance (IR) and at risk of type 2 diabetes. 2117 European families from the Feel4Diabetes-study were identified as being at risk for diabetes with the FINDRISC questionnaire and included in the present study. One parent and one child per family were included. Parental IR was considered when homeostasis model assessment (HOMA) was equal or higher than 2.5. Children's screen-time, physical activity and diet were assessed and clustered by K-means. Weight and height were measured and children's body mass index (BMI) was calculated. For children, a Healthy Diet Score (HDS) was calculated. Linear regression and multilevel logistic regression analyses were performed to assess the associations between parental IR and children's lifestyle behaviours in 2021. Children of parents with IR had higher BMI (p < 0.001) and spent more screen time (p = 0.014) than those of non-IR parents. Children of parents with IR had a lower value in the breakfast and vegetable components of the HDS (p = 0.008 and p = 0.05). Four lifestyle clusters were found. Children of IR parents had higher odds of being in a non-healthy cluster (OR: 1.19; 95%CI: 1.001-1.437). CONCLUSION Having an IR parent was associated with a high screen time and an increased probability of having an unhealthy lifestyle pattern in children. These data point out that children's lifestyles should be assessed in families with IR parents to provide tailored interventions. WHAT IS KNOWN • Children with diabetic or insulin-resistant parents could also develop this condition. • Unhealthy lifestyles are directly related with insulin resistance even in children. WHAT IS NEW • Children from parents with insulin resistance have higher chances of unhealthy lifestyles. • A higher BMI was found for those children with an insulin-resistant parent.
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Ferraz RS, Santos LCB, da-Silva-Cruz RL, Braga-da-Silva CH, Magalhães L, Ribeiro-dos-Santos A, Vidal A, Vinasco-Sandoval T, Reis-das-Mercês L, Sena-dos-Santos C, Pereira AL, Silva LSD, de Melo FTC, de Souza ACCB, Leal VSG, de Figueiredo PBB, Neto JFA, de Moraes LV, de Lemos GN, de Queiroz NNM, Felício KM, Cavalcante GC, Ribeiro-dos-Santos Â, Felício JS. Global miRNA expression reveals novel nuclear and mitochondrial interactions in Type 1 diabetes mellitus. Front Endocrinol (Lausanne) 2022; 13:1033809. [PMID: 36506063 PMCID: PMC9731375 DOI: 10.3389/fendo.2022.1033809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 11/03/2022] [Indexed: 11/27/2022] Open
Abstract
BACKGROUND Considering the potential role of miRNAs as biomarkers and their interaction with both nuclear and mitochondrial genes, we investigated the miRNA expression profile in type 1 diabetes (T1DM) patients, including the pathways in which they are involved considering both nuclear and mitochondrial functions. METHODS We analyzed samples of T1DM patients and control individuals (normal glucose tolerance) by high throughput miRNA sequencing (miRNome). Next, five miRNAs - hsa-miR-26b-5p, hsa-let-7i-5p, hsa-miR-143-3p, hsa-miR-501-3p and hsa-miR-100-5p - were validated by RT-qPCR. The identification of target genes was extracted from miRTarBase and mitoXplorer database. We also performed receiver operating characteristic (ROC) curves and miRNAs that had an AUC > 0.85 were considered potential biomarkers. RESULTS Overall, 41 miRNAs were differentially expressed in T1DM patients compared to control. Hsa-miR-21-5p had the highest number of predicted target genes and was associated with several pathways, including insulin signaling and apoptosis. 34.1% (14/41) of the differentially expressed miRNAs also targeted mitochondrial genes, and 80.5% (33/41) of them targeted nuclear genes involved in the mitochondrial metabolism. All five validated miRNAs were upregulated in T1DM. Among them, hsa-miR-26b-5p showed AUC>0.85, being suggested as potential biomarker to T1DM. CONCLUSION Our results demonstrated 41 DE miRNAs that had a great accuracy in discriminating T1DM and control group. Furthermore, we demonstrate the influence of these miRNAs on numerous metabolic pathways, including mitochondrial metabolism. Hsa-miR-26b-5p and hsa-miR-21-5p were highlighted in our results, possibly acting on nuclear and mitochondrial dysfunction and, subsequently, T1DM dysregulation.
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Affiliation(s)
- Rafaella Sousa Ferraz
- Laboratory of Human and Medical Genetics, Graduate Program in Genetics and Molecular Biology, Federal University of Para, Belem, PA, Brazil
| | - Lucas Cauê Bezerra Santos
- Laboratory of Human and Medical Genetics, Graduate Program in Genetics and Molecular Biology, Federal University of Para, Belem, PA, Brazil
| | - Rebecca Lais da-Silva-Cruz
- Laboratory of Human and Medical Genetics, Graduate Program in Genetics and Molecular Biology, Federal University of Para, Belem, PA, Brazil
| | - Cintia Helena Braga-da-Silva
- Laboratory of Human and Medical Genetics, Graduate Program in Genetics and Molecular Biology, Federal University of Para, Belem, PA, Brazil
| | - Leandro Magalhães
- Laboratory of Human and Medical Genetics, Graduate Program in Genetics and Molecular Biology, Federal University of Para, Belem, PA, Brazil
| | - Arthur Ribeiro-dos-Santos
- Laboratory of Human and Medical Genetics, Graduate Program in Genetics and Molecular Biology, Federal University of Para, Belem, PA, Brazil
| | - Amanda Vidal
- Laboratory of Human and Medical Genetics, Graduate Program in Genetics and Molecular Biology, Federal University of Para, Belem, PA, Brazil
- Instituto Tecnológico Vale Desenvolvimento Sustentável Vale, Institute of Technology, Belem, PA, Brazil
| | - Tatiana Vinasco-Sandoval
- Laboratoire de Génomique et Radiobiologie de la Kératinopoïèse, Institut de Biologie François Jacob, CEA/DRF/IRCM, Evry, France
| | - Laís Reis-das-Mercês
- Laboratory of Human and Medical Genetics, Graduate Program in Genetics and Molecular Biology, Federal University of Para, Belem, PA, Brazil
| | - Camille Sena-dos-Santos
- Laboratory of Human and Medical Genetics, Graduate Program in Genetics and Molecular Biology, Federal University of Para, Belem, PA, Brazil
| | | | | | - Franciane T. Cunha de Melo
- Endocrinology Research Center, Joao de Barros Barreto University Hospital, Federal University of Para, Belem, PA, Brazil
| | - Ana Carolina C. Braga de Souza
- Endocrinology Research Center, Joao de Barros Barreto University Hospital, Federal University of Para, Belem, PA, Brazil
| | - Valéria S. Galvão Leal
- Endocrinology Research Center, Joao de Barros Barreto University Hospital, Federal University of Para, Belem, PA, Brazil
| | | | - João F. Abrahão Neto
- Endocrinology Research Center, Joao de Barros Barreto University Hospital, Federal University of Para, Belem, PA, Brazil
| | - Lorena Vilhena de Moraes
- Endocrinology Research Center, Joao de Barros Barreto University Hospital, Federal University of Para, Belem, PA, Brazil
| | - Gabriela Nascimento de Lemos
- Endocrinology Research Center, Joao de Barros Barreto University Hospital, Federal University of Para, Belem, PA, Brazil
| | | | - Karem Miléo Felício
- Endocrinology Research Center, Joao de Barros Barreto University Hospital, Federal University of Para, Belem, PA, Brazil
| | - Giovanna C. Cavalcante
- Laboratory of Human and Medical Genetics, Graduate Program in Genetics and Molecular Biology, Federal University of Para, Belem, PA, Brazil
| | - Ândrea Ribeiro-dos-Santos
- Laboratory of Human and Medical Genetics, Graduate Program in Genetics and Molecular Biology, Federal University of Para, Belem, PA, Brazil
- Oncology Research Center, Graduate Program in Oncology and Medical Sciences, Joao de Barros Barreto University Hospital, Federal University of Para, Belem, PA, Brazil
| | - João Soares Felício
- Endocrinology Research Center, Joao de Barros Barreto University Hospital, Federal University of Para, Belem, PA, Brazil
- *Correspondence: João Soares Felício,
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De Sanctis V, Soliman A, Daar S, Tzoulis P, Yassin MA, Di Maio S, Kattamis C. Insulin-Like Growth Factor -1 (IGF-1) and Glucose Dysregulation in Young Adult Patients with β-Thalassemia Major: Causality or Potential Link? ACTA BIO-MEDICA : ATENEI PARMENSIS 2022; 93:e2022331. [PMID: 36533767 PMCID: PMC9828921 DOI: 10.23750/abm.v93i6.13288] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 06/04/2022] [Indexed: 01/21/2023]
Abstract
BACKGROUND Insulin-like growth factor-1 (IGF-1) has been shown to lower blood glucose through stimulating glucose transport to fat and muscle and inhibiting hepatic glucose output. Although previous cross-sectional reports reported an association between low circulating concentrations of IGF-1 and glucose dysregulation (GD), its role is still debated. AIMS OF STUDY The present retrospective study was designed to assess the circulating IGF-1 levels in β-thalassemia major (β -TM) patients with normal oral glucose tolerance test (NGT-OGTT) and (GD) referred for an endocrine evaluation to explore the potential link between low IGF-1 and GD. STUDY DESIGN AND METHODS Our study included 34 young adult patients with β-TM; 12 patients with NGT after OGTT, 7 with impaired glucose tolerance (IGT), 9 with impaired fasting glucose (IFG) plus IGT, and 6 patients with β-TM-related diabetes mellitus (β-TM- DM). RESULTS Twenty-two β-TM patients with GD or β-TM- DM and 1 patient with NGT had IGF-1 levels below the 2.5th percentile. Correlation of IGF-1 with fasting plasma glucose, HOMA-IR (homeostatic model assessment for insulin resistance) and OGIS (oral glucose insulin sensitivity) was found. Moreover, a negative correlation was documented between ALT and the Insulinogenic Index (IGI) and a positive correlation between serum ferritin and PG 2-h after OGTT. CONCLUSION This study reports for the first time an association between low levels of IGF-1 and GD in β-TM patients. Despite some limitations, our study can serve to generate proposals for more convenient and efficient methods to identify and treat early GD in patients with β-TM, and to conduct more extensive studies. www.actabiomedica.it).
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Affiliation(s)
- Vincenzo De Sanctis
- Coordinator of ICET-A Network (International Network of Clinicians for Endocrinopathies in Thalassemia and Adolescent Medicine) and Pediatric and Adolescent Outpatient Clinic, Quisisana Hospital, Ferrara, Italy
| | - Ashraf Soliman
- Department of Pediatrics, Division of Endocrinology, Hamad General Hospital, Doha, Qatar and Department of Pediatrics, Division of Endocrinology, Alexandria University Children’s Hospital, Alexandria, Egypt
| | - Shahina Daar
- Department of Haematology, College of Medicine and Health Sciences, Sultan Qaboos University, Sultanate of Oman, Oman
| | - Ploutarchos Tzoulis
- Department of Metabolism and Experimental Therapeutics, Division of Medicine, University College London, London, UK
| | - Mohamed A. Yassin
- Hematology-Oncology Department, National Centre for Cancer Care and Research, Doha, Qatar
| | - Salvatore Di Maio
- Emeritus Director in Pediatrics, Children’s Hospital “Santobono-Pausilipon”, Naples, Italy
| | - Christos Kattamis
- First Department of Pediatrics, National Kapodistrian University of Athens, Greece
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Li W, Liu T, Qian L, Wang Y, Ma X, Cao L, Zhang Q, Qu J. Insulin resistance and inflammation mediate the association of abdominal obesity with colorectal cancer risk. Front Endocrinol (Lausanne) 2022; 13:983160. [PMID: 36407320 PMCID: PMC9669084 DOI: 10.3389/fendo.2022.983160] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 10/24/2022] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND The close association of abdominal obesity rather than general obesity with colorectal cancer (CRC) risk might be mediated by IR and inflammation, which has never been systematically explored in large-scale prospective studies. METHODS We prospectively examined the mediation effects of the fasting triglyceride-glucose (TyG) index and C-reactive protein (CRP) on the associations of obesity (general and abdominal) with CRC risk among 93,659 participants. We used the Cox proportional hazards regression models and subgroup analyses to evaluate the hazard ratios (HRs) and 95% confidence intervals (95% CIs) of CRC. The CAUSALMED procedure was used to perform the mediation analyses. RESULTS During 13.02 years of follow-up, a total of 586 CRC cases were verified. Male participants with general obesity and abdominal obesity had a 1.29-fold and a 1.28-fold increased risk of CRC. However, a significant association was only observed among female individuals with abdominal obesity. Both TyG index and CRP were associated with an elevated risk of CRC, and A significant interaction between the TyG index and CRP was found for the risk of CRC (P for interaction<0.05). CRP and the TyG index significantly mediated the positive association between abdominal obesity and CRC risk. CONCLUSION CRP and TyG index increased the risk of CRC independently and synergistically. Mediation effects of CRP and the TyG index were found for the association between abdominal obesity and CRC risk.
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Affiliation(s)
- Wenqiang Li
- Department of General Surgery, Aerospace Center Hospital, Beijing, China
| | - Tong Liu
- Department of Gastrointestinal Surgery/Clinical Nutrition, Capital Medical University Affiliated Beijing Shijitan Hospital, Beijing, China
| | - Liang Qian
- Department of Obstetrics and Gynecology, Hangzhou Women’s Hospital, Hangzhou, China
| | - Yiming Wang
- Department of Hepatobiliary Surgery, Kailuan General Hospital, Tangshan, China
| | - Xiangming Ma
- Department of Hepatobiliary Surgery, Kailuan General Hospital, Tangshan, China
| | - Liying Cao
- Department of Hepatobiliary Surgery, Kailuan General Hospital, Tangshan, China
| | - Qingsong Zhang
- Department of General Surgery, Kailuan General Hospital, Tangshan, China
- *Correspondence: Jun Qu, ; Qingsong Zhang,
| | - Jun Qu
- Department of General Surgery, Aerospace Center Hospital, Beijing, China
- *Correspondence: Jun Qu, ; Qingsong Zhang,
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Czarniak P, Ahmadizar F, Hughes J, Parsons R, Kavousi M, Ikram M, Stricker BH. Proton pump inhibitors are associated with incident type 2 diabetes mellitus in a prospective population-based cohort study. Br J Clin Pharmacol 2021; 88:2718-2726. [PMID: 34907592 PMCID: PMC9303945 DOI: 10.1111/bcp.15182] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Revised: 10/27/2021] [Accepted: 12/02/2021] [Indexed: 12/19/2022] Open
Abstract
Aim To investigate the association between proton pump inhibitors (PPIs) and risk of incident diabetes in a follow‐up study and to investigate its potential mechanisms. Methods A total of 9531 individuals without type 2 diabetes (T2DM) at baseline were included from the Rotterdam Study, a prospective population‐based cohort of 14 926 individuals aged 45 years or older. During the study period (1 April 1997 to 1 January 2012) all incident cases of T2DM were enrolled. We used multivariable linear regression analysis to investigate the associations of baseline PPI use and various serum biomarkers (eg, serum magnesium, insulin‐like growth factor 1) which might modify the association. Thereafter, we excluded prevalent PPI users and performed a Cox proportional hazard regression analysis to explore the time‐varying effect of incident PPI use on T2DM during follow‐up. Results Baseline use of a PPI was associated with increased serum levels of fasting insulin (0.091 pmoL/L, 95% confidence interval [CI] 0.049, 0.133), homeostasis model assessment‐insulin resistance (0.100, 95% CI 0.056, 0.145) and C‐reactive protein (0.29 mg/L, 95% CI 0.198, 0.384), but decreased levels of magnesium (−0.009 mmol/L, 95% CI −0.014, −0.004) and IGF‐1 (−0.805 nmoL/L, 95% CI −1.015, −0.595). After adjustment for risk factors such as physical activity and body mass index/waist‐to‐hip ratio, current use of PPI was associated with an increased risk of incident T2DM (hazard ratio [HR] 1.69, 95% CI 1.36‐2.10). The effect was dose‐dependent with the highest risk (HR 1.88, 95% CI 1.29‐2.75) in those on more than one defined daily dose. Conclusion New users of PPIs during follow‐up had a significantly higher dose‐dependent risk of incident diabetes. We suggest vigilance regarding their potential adverse effect on glucose homeostasis.
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Affiliation(s)
- Petra Czarniak
- Curtin Medical School, Curtin University, Perth, Western Australia, Australia
| | - Fariba Ahmadizar
- Department of Epidemiology, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Jeff Hughes
- Curtin Medical School, Curtin University, Perth, Western Australia, Australia
| | - Richard Parsons
- Curtin Medical School, Curtin University, Perth, Western Australia, Australia
| | - Maryam Kavousi
- Department of Epidemiology, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Mohammad Ikram
- Department of Epidemiology, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - Bruno H Stricker
- Department of Epidemiology, Erasmus University Medical Center, Rotterdam, the Netherlands
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The Effect of Diabetes Mellitus on IGF Axis and Stem Cell Mediated Regeneration of the Periodontium. Bioengineering (Basel) 2021; 8:bioengineering8120202. [PMID: 34940355 PMCID: PMC8698546 DOI: 10.3390/bioengineering8120202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 11/29/2021] [Indexed: 11/16/2022] Open
Abstract
Periodontitis and diabetes mellitus (DM) are two of the most common and challenging health problems worldwide and they affect each other mutually and adversely. Current periodontal therapies have unpredictable outcome in diabetic patients. Periodontal tissue engineering is a challenging but promising approach that aims at restoring periodontal tissues using one or all of the following: stem cells, signalling molecules and scaffolds. Mesenchymal stem cells (MSCs) and insulin-like growth factor (IGF) represent ideal examples of stem cells and signalling molecules. This review outlines the most recent updates in characterizing MSCs isolated from diabetics to fully understand why diabetics are more prone to periodontitis that theoretically reflect the impaired regenerative capabilities of their native stem cells. This characterisation is of utmost importance to enhance autologous stem cells based tissue regeneration in diabetic patients using both MSCs and members of IGF axis.
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Munetsuna E, Yamada H, Yamazaki M, Ando Y, Mizuno G, Hattori Y, Kageyama I, Teshigawara A, Nouchi Y, Ishikawa H, Fujii R, Ohta Y, Suzuki K, Shimono Y, Ohashi K, Hashimoto S. Maternal fructose intake predisposes rat offspring to metabolic disorders via abnormal hepatic programming. FASEB J 2021; 35:e22030. [PMID: 34748238 DOI: 10.1096/fj.202101276r] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 10/04/2021] [Accepted: 10/19/2021] [Indexed: 01/08/2023]
Abstract
Given that fructose consumption has increased by more than 10-fold in recent decades, it is possible that excess maternal fructose consumption causes harmful effects in the next generation. This study attempted to elucidate the mechanism of the harmful effects of excessive maternal fructose intake from the perspective of offspring liver function. Female rats during gestation and lactation were fed water containing fructose, and their offspring were fed normal water. We attempted to elucidate the mechanism of fructose-induced transgenerational toxicity by conducting a longitudinal study focusing on hepatic programming prior to disease onset. Impaired Insulin resistance and decreased high-density lipoprotein-cholesterol levels were observed at 160 days of age. However, metabolic disorders were not observed in 60-day-old offspring. Microarray analysis of 60-day-old offspring livers showed the reduction of hepatic insulin-like growth factor-1 (Igf1) mRNA expression. This reduction continued until the rats were aged 160 days and attenuated Igf1 signaling. Hepatic microRNA-29 (miR-29a) and miR-130a, which target Igf1 mRNA, were also found to be upregulated. Interestingly, these miRNAs were upregulated in the absence of metabolic disorder. In this study, we found that maternal fructose intake resulted in dysregulated expression of Igf1 and its target miRNAs in the offspring liver, and that these offspring were more likely to develop metabolic disorders. Abnormal hepatic programming induced by an imbalanced maternal nutritional environment is maintained throughout life, implying that it may contribute to metabolic disorders.
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Affiliation(s)
- Eiji Munetsuna
- Department of Biochemistry, Fujita Health University School of Medicine, Toyoake, Japan
| | - Hiroya Yamada
- Department of Hygiene, Fujita Health University School of Medicine, Toyoake, Japan
| | - Mirai Yamazaki
- Department of Medical Technology, Kagawa Prefectural University of Health Sciences, Takamatsu, Japan
| | - Yoshitaka Ando
- Department of Clinical Biochemistry, Fujita Health University School of Medical Sciences, Toyoake, Japan
| | - Genki Mizuno
- Deparment of Joint Research Laboratory of Clinical Medicine, Fujita Health University Hospital, Toyoake, Japan.,Department of Preventive Medical Sciences, Fujita Health University School of Medical Sciences, Toyoake, Japan
| | - Yuji Hattori
- Department of Preventive Medical Sciences, Fujita Health University School of Medical Sciences, Toyoake, Japan
| | - Itsuki Kageyama
- Department of Clinical Biochemistry, Fujita Health University School of Medical Sciences, Toyoake, Japan
| | - Atsushi Teshigawara
- Department of Clinical Biochemistry, Fujita Health University School of Medical Sciences, Toyoake, Japan.,Deparment of Joint Research Laboratory of Clinical Medicine, Fujita Health University Hospital, Toyoake, Japan
| | - Yuki Nouchi
- Department of Clinical Biochemistry, Fujita Health University School of Medical Sciences, Toyoake, Japan
| | - Hiroaki Ishikawa
- Department of Clinical Biochemistry, Fujita Health University School of Medical Sciences, Toyoake, Japan
| | - Ryosuke Fujii
- Department of Preventive Medical Sciences, Fujita Health University School of Medical Sciences, Toyoake, Japan
| | - Yoshiji Ohta
- Department of Chemistry, Fujita Health University School of Medicine, Toyoake, Japan
| | - Koji Suzuki
- Department of Preventive Medical Sciences, Fujita Health University School of Medical Sciences, Toyoake, Japan
| | - Yohei Shimono
- Department of Biochemistry, Fujita Health University School of Medicine, Toyoake, Japan
| | - Koji Ohashi
- Department of Clinical Biochemistry, Fujita Health University School of Medical Sciences, Toyoake, Japan
| | - Shuji Hashimoto
- Department of Hygiene, Fujita Health University School of Medicine, Toyoake, Japan
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Majidi N, Kosari Monfared M, Mazaheri-Eftekhar F, Movahedi A, Karandish M. The effects of saffron petals and damask rose petals on biochemical and inflammatory measurements. JOURNAL OF COMPLEMENTARY & INTEGRATIVE MEDICINE 2021; 19:251-259. [PMID: 34624188 DOI: 10.1515/jcim-2021-0420] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Accepted: 09/27/2021] [Indexed: 01/03/2023]
Abstract
OBJECTIVES Diabetes is a chronic disease caused by high blood sugar greatly affected by diet. The chemical medicines applied to treat diabetes usually have side effects. This study aimed to investigate the effect of saffron petals, damask rose petals, and saffron-damask rose petal herbal teas on weight loss, fasting blood sugar, lipid profile, and the inflammatory factors of diabetic rats. METHODS In this study, 40 male Sprague Dawley rats with an average age of four weeks received a high-calorie, high-fat, high-sugar diet for nine weeks. The rats were then randomly assigned to five groups, including normal, control, saffron petal, damask rose petal, and saffron plus damask rose petal groups. For nine weeks, 3 mL of the herbal tea was administered to the intervention groups daily through oral gavage. The levels of FBS, lipid profile, Insulin-like growth factor 1 (IGF-1), the high-sensitivity C-reactive protein (hs-CRP), hemoglobin A1c (HbA1C), and glucose tolerance test (GTT) were measured following the intervention. RESULTS Saffron petals reduced weight gain, Triglyceride (TG), and HbA1c and increased hs-CRP and IGF-1 (all p < 0.05). The damask rose petal reduced weight gain, FBS, hs-CRP, and HbA1c and increased the IGF-1 (all p < 0.05). Saffron plus damask-rose petals reduced the weight gain, TG, hs-CRP and HbA1c, and increase IGF-1 factor (all p < 0.05) compared to the control group. No significant effect was found on visceral fat, LDL-C, and HDL-C. Compared with the normal group, saffron petals and damask rose petals increased the FBS, HDL, and LDL levels. Damask rose and the combination of saffron petals and damask rose decreased IGF-1 compared with the normal group (all p < 0.05). CONCLUSIONS Saffron and damask rose petals could have beneficial effects on improving the status of biochemical markers. The simultaneous use of saffron and damask rose may counteract the adverse effects of saffron on inflammatory indices.
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Affiliation(s)
- Nazanin Majidi
- Department of Nutrition, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | | | | | - Ariyo Movahedi
- Department of Nutrition, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Majid Karandish
- Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
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Hayes CA, Valcarcel-Ares MN, Ashpole NM. Preclinical and clinical evidence of IGF-1 as a prognostic marker and acute intervention with ischemic stroke. J Cereb Blood Flow Metab 2021; 41:2475-2491. [PMID: 33757314 PMCID: PMC8504958 DOI: 10.1177/0271678x211000894] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Ischemic strokes are highly prevalent in the elderly population and are a leading cause of mortality and morbidity worldwide. The risk of ischemic stroke increases in advanced age, corresponding with a noted decrease in circulating insulin growth factor-1 (IGF-1). IGF-1 is a known neuroprotectant involved in embryonic development, neurogenesis, neurotransmission, cognition, and lifespan. Clinically, several studies have shown that reduced levels of IGF-1 correlate with increased mortality rate, poorer functional outcomes, and increased morbidities following an ischemic stroke. In animal models of ischemia, administering exogenous IGF-1 using various routes of administration (intranasal, intravenous, subcutaneous, or topical) at various time points prior to and following insult attenuates neurological damage and accompanying behavioral changes caused by ischemia. However, there are some contrasting findings in select clinical and preclinical studies. This review discusses the role of IGF-1 as a determinant factor of ischemic stroke outcomes, both within the clinical settings and preclinical animal models. Furthermore, the review provides insight on the role of IGF-1 in mechanisms and cellular processes that contribute to stroke damage.
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Affiliation(s)
- Cellas A Hayes
- Department of BioMolecular Sciences, School of Pharmacy, University of Mississippi, Mississippi, USA
| | - M Noa Valcarcel-Ares
- Department of BioMolecular Sciences, School of Pharmacy, University of Mississippi, Mississippi, USA
| | - Nicole M Ashpole
- Department of BioMolecular Sciences, School of Pharmacy, University of Mississippi, Mississippi, USA.,Research Institute of Pharmaceutical Sciences, School of Pharmacy, University of Mississippi, University, Mississippi, USA
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Sun Y, Xiong Y, Meng YL, Santos HO, Athayde FL, de Souza IGO, Yang L. Effects of raloxifene administration on serum levels of insulin-like growth factor-1 and insulin-like growth factor-binding protein 3 levels: A systematic review and meta-analysis of randomized controlled trials. Growth Horm IGF Res 2021; 60-61:101421. [PMID: 34384975 DOI: 10.1016/j.ghir.2021.101421] [Citation(s) in RCA: 3] [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: 05/07/2021] [Revised: 07/26/2021] [Accepted: 07/27/2021] [Indexed: 01/01/2023]
Abstract
OBJECTIVE To ascertain the clinical magnitude of raloxifene administration on insulin-like growth factor-1 (IGF-1) and insulin-like growth factor-binding protein 3 (IGFBP-3) levels. METHODS A systematic comprehensive search was performed without language limitation up to 14 December 2020. We included only trials that assessed the effect of raloxifene on IGF-1 and IGFBP-3 in adults. Meta-analysis was performed using the Stata software (Stata Corp. College Station, Texas, USA). RESULTS Seven arms were included, encompassing postmenopausal women with type 2 diabetes mellitus, postmenopausal women with breast cancer, healthy postmenopausal women, and healthy elderly men. Raloxifene therapy significantly reduced IGF-1 levels (WMD: -2.92 nmol/L, 95% CI: -3.49, -2.35, p < 0.001) compared to placebo. Raloxifene dosage ˃60 mg/day (WMD: -3.29 ng/mL, 95% CI: -3.50 to -3.08, I2 = 0.0%) decreased IGF-1 levels more than 60 mg/day (WMD: -2.29 ng/mL, 95% CI: -2.90 to -1.69, I2 = 16%). Moreover, intervention duration ˃26 weeks (WMD: -3.48 ng/mL, 95% CI: -5.26 to -1.69, I2 = 0.0%) reduced IGF-1 levels more than ˂26 weeks (WMD: -2.55 ng/mL, 95% CI: -3.31 to -1.79, I2 = 92%). In contrast, overall results from the random-effects model did not suggest a significant change in IGFBP-3 levels upon raloxifene therapy. CONCLUSION Raloxifene therapy significantly reduced serum levels of IGF-1 levels but without changes in IGFPB-3 levels.
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Affiliation(s)
- Yan Sun
- Department of Internal Medicine, College of Clinical Medicine, QiLu Medical University, Zibo, Shandong 255300, China
| | - Ying Xiong
- Department of Pharmacy, Fifth Hospital in WuHan, Wuhan, Hubei 430050, China
| | - Yong Liang Meng
- Departmeng of Surgery, College of Clinical Medicine, QiLu Medical University, Zibo, Shandong 255300, China
| | - Heitor O Santos
- School of Medicine, Federal University of Uberlandia (UFU), Uberlandia, Minas Gerais, Brazil
| | - Felipe L Athayde
- School of Medicine, Federal University of Pelotas (UFPel), Pelotas, Rio Grande do Sul, Brazil
| | - Ivan G O de Souza
- Universidade Salvador (UNIFACS), Salvador, Bahia, Escola de Ciências da Saúde, Brazil
| | - Ling Yang
- Department of Endocrinology, Punan Hospital, Pudong New Area, Shanghai 200125, China.
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Madhukar R, Jagadeesh AT, Moey MYY, Vaglio M, Badilini F, Leban M, Hartemann A, Dureau P, Funck-Brentano C, Bourron O, Salem JE. Association of thyroid-stimulating hormone with corrected QT interval variation: A prospective cohort study among patients with type 2 diabetes. Arch Cardiovasc Dis 2021; 114:656-666. [PMID: 34544648 DOI: 10.1016/j.acvd.2021.06.008] [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: 04/16/2021] [Revised: 05/31/2021] [Accepted: 06/14/2021] [Indexed: 11/27/2022]
Abstract
BACKGROUND Patients with type 2 diabetes mellitus (T2DM) have a prolonged QT interval and are at high risk of sudden cardiac death. A prolonged QT interval, indicative of impaired ventricular repolarization, is a risk factor for lethal ventricular arrhythmias, such as torsades-de-pointes (TdP). AIMS To identify key clinical and biochemical covariates associated with Fridericia's corrected QT interval (QTcF) among euthyroid patients with T2DM, and to describe the temporal relationship between these factors and QTcF. METHODS We performed prospective, clinical, biochemical and electrocardiographic measurements among patients with T2DM enrolled in the DIACART study at Pitié-Salpêtrière Hospital, at T1 (baseline) and T2 (follow-up), with a median interval of 2.55 years. RESULTS Mean age (63.9±8.5 years), sex (22.35% women), drugs with known risk of TdP according to the CredibleMeds website (Cred-drugsTdP) and serum thyroid-stimulating hormone (TSH) concentrations correlated with QTcF in univariate analysis at both T1 and T2. In multivariable analysis, all these covariates except age were significantly associated with QTcF at both T1 (women: standardized β=0.24±0.07, P=0.001; Cred-drugsTdP: β=0.19±0.07, P=0.007; TSH concentration: β=0.18±0.07, P=0.01) and T2 (women: β=0.25±0.08, P=0.002; Cred-drugsTdP: β=0.25±0.08, P=0.001; TSH concentration: β=0.19±0.08, P=0.01). Furthermore, variation in QTcF over the years was associated with variation in TSH concentration (r=0.24, P=0.007) and changes in use of Cred-drugsTdP (r=0.2, P=0.02). CONCLUSIONS Serum TSH concentration and its variation were associated with QTcF and its variation, even after correcting for the main determinants of QTcF. Interventional optimization of TSH concentration in T2DM warrants further investigation to establish its impact on the risk of TdP and sudden cardiac death.
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Affiliation(s)
- Rashmi Madhukar
- Kasturba Medical College, Manipal Academy of Higher Education, Manipal, Karnataka 576104, India; Department of Pharmacology and Clinical Investigation Centre (CIC-1901), Pitié-Salpêtrière Hospital, AP-HP, Sorbonne Université, inserm, 75013 Paris, France
| | - Akshay T Jagadeesh
- Kasturba Medical College, Manipal Academy of Higher Education, Manipal, Karnataka 576104, India; Department of Pharmacology and Clinical Investigation Centre (CIC-1901), Pitié-Salpêtrière Hospital, AP-HP, Sorbonne Université, inserm, 75013 Paris, France
| | - Melissa Yen Yen Moey
- Department of Cardiovascular Sciences, East Carolina University, Greenville; and Vidant Medical Center, Greenville, NC 27834, USA
| | | | | | - Monique Leban
- Department of Biology, Pitié-Salpêtrière Hospital, AP-HP, Sorbonne Université, 75013 Paris, France
| | - Agnès Hartemann
- Department of Diabetology, Pitié-Salpêtrière Hospital, AP-HP, Sorbonne University, inserm, 75013 Paris, France
| | - Pauline Dureau
- Department of Pharmacology and Clinical Investigation Centre (CIC-1901), Pitié-Salpêtrière Hospital, AP-HP, Sorbonne Université, inserm, 75013 Paris, France
| | - Christian Funck-Brentano
- Department of Pharmacology and Clinical Investigation Centre (CIC-1901), Pitié-Salpêtrière Hospital, AP-HP, Sorbonne Université, inserm, 75013 Paris, France
| | - Olivier Bourron
- Department of Diabetology, Pitié-Salpêtrière Hospital, AP-HP, Sorbonne University, inserm, 75013 Paris, France
| | - Joe-Elie Salem
- Department of Pharmacology and Clinical Investigation Centre (CIC-1901), Pitié-Salpêtrière Hospital, AP-HP, Sorbonne Université, inserm, 75013 Paris, France; Departments of Medicine and Pharmacology, Cardio-Oncology Program, Vanderbilt University Medical Center, Nashville, TN 37232, USA.
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65
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Sabbah N, Wolf P, Piedvache C, Trabado S, Verdelet T, Cornu C, Souberbielle JC, Chanson P. Reference values for IGF-I serum concentration in an adult population: use of the VARIETE cohort for two new immunoassays. Endocr Connect 2021; 10:1027-1034. [PMID: 34343107 PMCID: PMC8428081 DOI: 10.1530/ec-21-0175] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Accepted: 08/03/2021] [Indexed: 11/26/2022]
Abstract
OBJECTIVE Measurement of IGF-I is important in the management of patients with growth hormone disorders. Here we aim to establish normative data for two new IGF-I assay kits based on a large random sample of the French general adult population. SUBJECTS AND METHODS We measured IGF-I in 911 healthy adults (18-90 years) with two immunoassays (ROCHE Elecsys® and IMMULITE-2000 calibrated against the new IS 02/2547). We compared the data with those of the six immunoassays (iSYS, LIAISON XL, IMMULITE-2000 calibrated against the first IS 87/518, IGF-I RIACT, Mediagnost ELISA, and Mediagnost RIA) that we reported previously. The pairwise concordance among the eight assays was assessed with Bland-Altman plots for both the IGF-1 raw data and the standard deviation scores (SDS), as well as with the percentage of observed agreement and the weighted Kappa coefficient for categorizing IGF-I SDS (ClinicalTrials.gov Identifier: NCT01831648). RESULTS The normative data included the range of values (2.5-97.5 percentiles) given by the two new IGF-I assays according to age group and sex. A formula for the SDS calculation is provided. As for the previous six assays, the lower limits of the reference intervals of the two new assays were similar, but the upper limits varied markedly. The pairwise concordances were only moderate (kappa 0.57). CONCLUSIONS Data obtained for these two new IGF-I immunoassays confirm that despite being obtained in the same large healthy population, the reference intervals of the eight commercial IGF-1 assay kits showed noteworthy differences. The agreement among the various methods was moderate to good.
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Affiliation(s)
- Nadia Sabbah
- Université Paris-Saclay, Inserm, Physiologie et Physiopathologie Endocriniennes, Assistance Publique-Hôpitaux de Paris, Hôpital de Bicêtre, Service d’Endocrinologie et des Maladies de la Reproduction, Centre de Référence des Maladies Rares de l’Hypophyse, Le Kremlin-Bicêtre, France
- Hôpital de Cayenne, Service d’Endocrinologie et des Maladies Métaboliques, Cayenne, Guyane Française
| | - Peter Wolf
- Université Paris-Saclay, Inserm, Physiologie et Physiopathologie Endocriniennes, Assistance Publique-Hôpitaux de Paris, Hôpital de Bicêtre, Service d’Endocrinologie et des Maladies de la Reproduction, Centre de Référence des Maladies Rares de l’Hypophyse, Le Kremlin-Bicêtre, France
- Division of Endocrinology and Metabolism, Department of Internal Medicine III, Medical University of Vienna, Vienna, Austria
| | - Céline Piedvache
- Assistance Publique-Hôpitaux de Paris, Hôpital de Bicêtre, Unité de Recherche Clinique, Le Kremlin-Bicêtre, France
| | - Séverine Trabado
- Université Paris-Saclay, Inserm, Physiologie et Physiopathologie Endocriniennes, Assistance Publique-Hôpitaux de Paris, Hôpital de Bicêtre, Service de Génétique Moléculaire, Pharmacogénétique et Hormonologie, Le Kremlin-Bicêtre, France
| | - Tristan Verdelet
- Université Paris-Saclay, Inserm, Physiologie et Physiopathologie Endocriniennes, Assistance Publique-Hôpitaux de Paris, Hôpital de Bicêtre, Service d’Endocrinologie et des Maladies de la Reproduction, Centre de Référence des Maladies Rares de l’Hypophyse, Le Kremlin-Bicêtre, France
| | - Catherine Cornu
- Centre d’Investigation Clinique, INSERM CIC1407/UMR5558, Hospices Civils de Lyon, Bron, France
| | - Jean-Claude Souberbielle
- Assistance Publique-Hôpitaux de Paris, Hôpital Necker, Service d’Explorations Fonctionnelles, Paris, France
| | - Philippe Chanson
- Université Paris-Saclay, Inserm, Physiologie et Physiopathologie Endocriniennes, Assistance Publique-Hôpitaux de Paris, Hôpital de Bicêtre, Service d’Endocrinologie et des Maladies de la Reproduction, Centre de Référence des Maladies Rares de l’Hypophyse, Le Kremlin-Bicêtre, France
- Correspondence should be addressed to P Chanson:
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Kuang J, Zhang L, Xu Y, Xue J, Liang S, Xiao J. Reduced Insulin-Like Growth Factor 1 Is Associated with Insulin Resistance in Obese Prepubertal Boys. BIOMED RESEARCH INTERNATIONAL 2021; 2021:6680316. [PMID: 34485526 PMCID: PMC8410383 DOI: 10.1155/2021/6680316] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 06/22/2021] [Accepted: 08/13/2021] [Indexed: 01/27/2023]
Abstract
As one of the most common features of obesity, insulin resistance is central to the pathogenesis of the metabolic syndrome. Low insulin-like growth factor 1 (IGF-1) levels have been proven to be associated with many traditional cardiovascular risk factors, but it still remains controversial with the relationship between IGF-1 and insulin resistance. Accordingly, the main purpose of this study is to investigate the relationship between IGF-1 and insulin resistance in obese prepubertal boys. We used the whole-body insulin sensitivity index (WBISI) to represent insulin resistance. 70 obese prepubertal boys were included in the study, and the obese subjects were divided into two groups by using 1.285 as a threshold value for WBISI. Clinical examination and laboratory examinations were assessed for all participants. Among obese boys, the group of children with WBISI ≤ 1.285 had lower IGF-1 standard deviation scores (SDS) (p = 0.021) than the WBISI > 1.285 group. The results of multiple linear analyses show that lg WBISI was positively correlated with IGF-1 SDS (p = 0.031) after adjusting for traditional cardiovascular risk factors. IGF-1 SDS was negatively associated with insulin resistance in obese prepubertal boys, independent of other traditional cardiovascular disease risk markers.
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Affiliation(s)
- Jiangying Kuang
- Department of Cardiology, The Second Hospital, Cheeloo College of Medicine, Shandong University, China
| | - Li Zhang
- Child Health Care Center, The First Affiliated Hospital of Shandong First Medical University, China
| | - Yueqin Xu
- Child Health Care Center, The First Affiliated Hospital of Shandong First Medical University, China
| | - Jiang Xue
- Department of Pediatrics, The Second Hospital, Cheeloo College of Medicine, Shandong University, China
| | - Shuang Liang
- Department of Pediatrics, The Second Hospital, Cheeloo College of Medicine, Shandong University, China
| | - Juan Xiao
- Center of Evidence-Based Medicine, Institute of Medical Sciences, The Second Hospital, Cheeloo College of Medicine, Shandong University, China
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Platonova EY, Shaposhnikov MV, Lee HY, Lee JH, Min KJ, Moskalev A. Black chokeberry (Aronia melanocarpa) extracts in terms of geroprotector criteria. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.06.020] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Du M, Liu J, Han N, Zhao Z, Luo S, Wang H. Exploring the mediating role of serum retinol-binding protein 4 in the relationship between sleep quality and insulin resistance in pregnant women. Diabetes Res Clin Pract 2021; 176:108866. [PMID: 34023339 DOI: 10.1016/j.diabres.2021.108866] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 02/19/2021] [Accepted: 05/18/2021] [Indexed: 11/26/2022]
Abstract
AIMS We aimed to explore the mediating role of plasma retinol-binding protein 4 (RBP4) in the relationship between sleep quality and insulin resistance (IR) among pregnant women. METHODS We conducted a cross-sectional study including 263 pregnant women in the first trimester. Sleep quality was evaluated by Pittsburgh Sleep Quality Index (PSQI). The ELISA and homeostasis model assessment (HOMA) was used to analyze plasma RBP4 and estimate IR. The mediating model was used to analyze the mediating role of RBP4 in the relationship between PSQI score and IR. RESULTS In the multivariable linear regression model, the three terms were positively related with each other, PSQI score was positively associated with IR levels (β = 0.55, p < 0.05). In the mediating model, RBP4 levels mediated completely the relationship between PSQI scores and IR levels (β = 0.29, p < 0.0001). The indirect effect of RBP4 in the relation between sleep quality and IR explained 89.10% of total effect. CONCLUSIONS RPB4 may play a complete mediating role in the relation between sleep quality and insulin resistance in early pregnancy. Improvements in sleep quality in the first trimester may provide a pathway to reduce plasma RBP4, which is beneficial for less IR and GDM prevention.
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Affiliation(s)
- Min Du
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China
| | - Jue Liu
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China; National Health Commission Key Laboratory of Reproductive Health, Peking University Health Science Center, Beijing 100191, China; Institute for Global Health and Development, Peking University, Beijing 100871, China.
| | - Na Han
- Maternal and Child Health Hospital of Tongzhou District, Beijing 101101, China
| | - Zhiling Zhao
- Maternal and Child Health Hospital of Tongzhou District, Beijing 101101, China
| | - Shusheng Luo
- Department of Maternal and Child Health, School of Public Health, Peking University, Beijing 100191, China
| | - Haijun Wang
- Department of Maternal and Child Health, School of Public Health, Peking University, Beijing 100191, China
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69
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Tzeng WY, Figarella K, Garaschuk O. Olfactory impairment in men and mice related to aging and amyloid-induced pathology. Pflugers Arch 2021; 473:805-821. [PMID: 33608800 PMCID: PMC7895745 DOI: 10.1007/s00424-021-02527-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 01/07/2021] [Accepted: 01/28/2021] [Indexed: 12/31/2022]
Abstract
Olfaction, or the sense of smell, is one of the most ancient senses in men and mice, important for a large variety of innate and acquired behaviors. Clinical data reveal an early impairment of olfaction during normal aging and in the course of neurodegenerative diseases, but the underlying cellular/molecular mechanisms remain obscure. In the current review, we compare different aspects of the aging- and Alzheimer's disease related impairment of olfaction in men and mice, aiming at the identification of common morbidities and biomarkers, which can be analyzed in detail in the appropriate mouse models. We also identify common, often interdependent (patho)physiological pathways, including but not limited to extracellular amyloid depositions, neuroinflammation, ɛ4 allele of the apolipoprotein E, CNS insulin resistance, and the impairment of adult neurogenesis, to be targeted by basic and clinical research.
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Affiliation(s)
- Wen-Yu Tzeng
- Institute of Physiology, Department of Neurophysiology, Eberhard Karls University of Tübingen, Keplerstr. 15, 72074, Tübingen, Germany
| | - Katherine Figarella
- Institute of Physiology, Department of Neurophysiology, Eberhard Karls University of Tübingen, Keplerstr. 15, 72074, Tübingen, Germany
| | - Olga Garaschuk
- Institute of Physiology, Department of Neurophysiology, Eberhard Karls University of Tübingen, Keplerstr. 15, 72074, Tübingen, Germany.
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Vasta R, D'Ovidio F, Logroscino G, Chiò A. The links between diabetes mellitus and amyotrophic lateral sclerosis. Neurol Sci 2021; 42:1377-1387. [PMID: 33544228 PMCID: PMC7955983 DOI: 10.1007/s10072-021-05099-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Accepted: 01/28/2021] [Indexed: 02/06/2023]
Abstract
ALS etiology and prognostic factors are mostly unknown. Metabolic diseases and especially diabetes mellitus (DM) have been variously related to ALS. However, pieces of evidence have been variegated and often conflicting so far. This review aims to give an overview of recent contributions focusing on the relationship between DM and ALS. DM seems to reduce the risk of developing ALS if diagnosed at a younger age; conversely, when diagnosed at an older age, DM seems protective against ALS. Such a relationship was not confirmed in Asian countries where DM increases the risk of ALS independently of the age of onset. Interestingly, DM does not affect ALS prognosis, possibly weakening the potential causal relationship between the two diseases. However, since most studies are observational, it is difficult to state the exact nature of such a relationship and several hypotheses have been made. A recent study using Mendelian randomization suggested that DM is indeed protective against ALS in the European population. However, these analyses are not without limits and further evidence is needed. DM is usually the core of a larger metabolic syndrome. Thus, other metabolic changes such as dyslipidemia, body mass index, and cardiovascular diseases should be collectively considered. Finally, hypermetabolism usually found in ALS patients should be considered too since all these metabolic changes could be compensation (or the cause) of the higher energy expenditure.
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Affiliation(s)
- Rosario Vasta
- ALS Center, 'Rita Levi Montalcini' Department of Neuroscience, University of Turin, Turin, Italy.
| | - Fabrizio D'Ovidio
- ALS Center, 'Rita Levi Montalcini' Department of Neuroscience, University of Turin, Turin, Italy
| | - Giancarlo Logroscino
- Department of Clinical Research in Neurology, Center for Neurodegenerative Diseases and the Aging Brain, University of Bari "Aldo Moro", "Pia Fondazione Cardinale G. Panico", Tricase, Italy
- Department of Basic Medical Sciences, Neuroscience and Sense Organs, University of Bari "Aldo Moro", Bari, Italy
| | - Adriano Chiò
- ALS Center, 'Rita Levi Montalcini' Department of Neuroscience, University of Turin, Turin, Italy
- Neurology 1, Azienda Ospedaliero Universitaria Città della Salute e della Scienza, Turin, Italy
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71
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Jaksic M, Martinovic M, Gligorovic-Barhanovic N, Antunovic T, Nedovic-Vukovic M. Relationship between insulin-like growth factor-1, insulin resistance and metabolic profile with pre-obesity and obesity in children. J Pediatr Endocrinol Metab 2021; 34:301-309. [PMID: 33618443 DOI: 10.1515/jpem-2020-0447] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Accepted: 11/25/2020] [Indexed: 01/03/2023]
Abstract
OBJECTIVES Childhood obesity is a serious medical condition with alarmingly high rates worldwide. There is controversy regarding the relationship between insulin-like growth factor-1 (IGF-1) and pediatric obesity. We investigated the relationship between IGF-1, insulin resistance and metabolic profile with childhood pre-obesity/obesity. METHODS The study involved 201 children aged 7-15 years, divided in three groups according to their nutritional status (International Obesity Task Force criteria): normal-weight (n=84), pre-obese (n=82), obese (n=35). Laboratory IGF-1, insulin, fasting blood glucose (FBG), lipid profile, alanine-aminotransferase (ALT), uric acid (UA), anthropometric and body composition parameters were analyzed. Body mass index and IGF-1 standard deviation score (SDS), waist-to-height ratio (WtHR) and Homeostatic Model Assessment for Insulin Resistance (HOMA-IR) score were calculated. RESULTS Pre-obese/obese children had significantly higher IGF-1 SDS, FBG, insulin, HOMA-IR, UA, ALT, triglycerides, and lower high-density lipoprotein cholesterol (HDL-c); obese group had higher WtHR and low-density lipoprotein cholesterol (LDL-c) compared to controls (p<0.05). In obese group, IGF-1 SDS was positively correlated with fat free/muscle mass, total body water (p<0.05) and negatively correlated with LDL-c (p<0.05). In pre-obese/obese HOMA-IR and insulin were positively correlated with age, total body fat (TBF) (p<0.05) and negatively correlated with HDL-c (pre-obese) (p<0.05). Multivariate ordinal logistic regression analyses showed that IGF-1 SDS (OR=1.94; 95%CI: 1.21-3.11), TBF (OR=1.37; 95%CI: 1.21-1.54) were predictors of nutritional status (p<0.001). FBG (OR=42.39; 95%CI: 2.31-77.2) and UA (OR=1.03; 95%CI: 1.01-1.05) were predictors of IR (p<0.001). CONCLUSIONS IGF-1 SDS and TBF were predictors of nutritional status. Further studies are required to clarify the role of IGF-1 in pathophysiology of obesity and its comorbidities.
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Affiliation(s)
- Marina Jaksic
- Center for Laboratory Diagnostics, Clinical Center of Montenegro, Institute for Children's Diseases, Podgorica, Montenegro.,Department of Pathophysiology and Laboratory Medicine, University of Montenegro, Faculty of Medicine, Podgorica, Montenegro
| | - Milica Martinovic
- Department of Pathophysiology and Laboratory Medicine, University of Montenegro, Faculty of Medicine, Podgorica, Montenegro
| | | | - Tanja Antunovic
- Center for Laboratory Diagnostics, Clinical Center of Montenegro, Podgorica, Montenegro
| | - Mirjana Nedovic-Vukovic
- Institute for Public Health of Montenegro, Center for Health System Development, Department for Health Statistics and Informatics, Podgorica, Montenegro
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72
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Jung SY. Multi-Omics Data Analysis Uncovers Molecular Networks and Gene Regulators for Metabolic Biomarkers. Biomolecules 2021; 11:biom11030406. [PMID: 33801830 PMCID: PMC8001935 DOI: 10.3390/biom11030406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 03/07/2021] [Accepted: 03/07/2021] [Indexed: 12/04/2022] Open
Abstract
The insulin-like growth factors (IGFs)/insulin resistance (IR) axis is the major metabolic hormonal pathway mediating the biologic mechanism of several complex human diseases, including type 2 diabetes (T2DM) and cancers. The genomewide association study (GWAS)-based approach has neither fully characterized the phenotype variation nor provided a comprehensive understanding of the regulatory biologic mechanisms. We applied systematic genomics to integrate our previous GWAS data for IGF-I and IR with multi-omics datasets, e.g., whole-blood expression quantitative loci, molecular pathways, and gene network, to capture the full range of genetic functionalities associated with IGF-I/IR and key drivers (KDs) in gene-regulatory networks. We identified both shared (e.g., T2DM, lipid metabolism, and estimated glomerular filtration signaling) and IR-specific (e.g., mechanistic target of rapamycin, phosphoinositide 3-kinases, and erb-b2 receptor tyrosine kinase 4 signaling) molecular biologic processes of IGF-I/IR axis regulation. Next, by using tissue-specific gene–gene interaction networks, we identified both well-established (e.g., IRS1 and IGF1R) and novel (e.g., AKT1, HRAS, and JAK1) KDs in the IGF-I/IR-associated subnetworks. Our results, if validated in additional genomic studies, may provide robust, comprehensive insights into the mechanisms of IGF-I/IR regulation and highlight potential novel genetic targets as preventive and therapeutic strategies for the associated diseases, e.g., T2DM and cancers.
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Affiliation(s)
- Su Yon Jung
- Translational Sciences Section, Jonsson Comprehensive Cancer Center, School of Nursing, University of California, Los Angeles, Los Angeles, CA 90095, USA
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73
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Lynch J, Kyriakakis N, Seejore K, Nix M, Watts S, Ghosh D, Murray RD. The severity of obstructive sleep apnoea does not influence ambient IGF-I levels. Clin Endocrinol (Oxf) 2021; 94:434-442. [PMID: 33128265 DOI: 10.1111/cen.14360] [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: 07/30/2020] [Revised: 10/15/2020] [Accepted: 10/16/2020] [Indexed: 11/28/2022]
Abstract
OBJECTIVE Obstructive sleep apnoea (OSA) is reported to have effects on a number of hormone systems including the hypothalamo-pituitary axis. We aimed to determine the impact of OSA severity on insulin-like growth factor-I (IGF-I) levels. DESIGN AND METHODS This is a prospective cohort study performed between November 2014 and May 2017. IGF-I was measured on serum samples, and data were collected on demographics, BMI and parameters of OSA. RESULTS 611 participants were recruited (202 female, 53.5 ± 12.5 years; mean BMI 36.2 ± 8.0 kg/m2 ). 26.2% had mild OSA; 27.3%, moderate OSA; and 44.5%, severe OSA. 15.2% of IGF-I values were below the age-related reference range. Increasing BMI correlated with greater AHI (r = .28, p < .001), ODI (r = .30, p < .001), severity of OSA (r = .17, p < .001), duration with oxygen saturation (SaO2 ) <90% (r = .29, p = .001) and reduced median SaO2 levels (r = .19, p < .001). IGF-I levels correlated negatively with age (r = -.13, p = .001), BMI (r = -.16, p < .001), diabetes (r = -.108, p = .009), AHI (r = -0.10, p = .043) and severity of OSA (r = -.10, p = .013). No association of IGF-I was observed with ODI, median SaO2 levels or duration of SaO2 < 90%. Regression analyses were used to examine determinants of IGF-I, all of which contained the independent variables of age, gender and BMI. All models showed IGF-I to be predicted by age and BMI (p < .05); however, none of the parameters of OSA were significant within these models. CONCLUSION Insulin-like growth factor-I levels in OSA are dependent on age and BMI; however, no additional effect of any OSA parameter was observed, supporting the hypothesis that OSA effects on IGF-I are indirect through concomitant body composition and metabolic parameters.
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Affiliation(s)
- Julie Lynch
- Department of Endocrinology, Leeds Centre for Diabetes & Endocrinology, Leeds Teaching Hospitals NHS Trust, Leeds, UK
| | - Nikolaos Kyriakakis
- Department of Endocrinology, Leeds Centre for Diabetes & Endocrinology, Leeds Teaching Hospitals NHS Trust, Leeds, UK
- Division of Cardiovascular and Diabetes Research, Leeds Institute of Cardiovascular and Metabolic Medicine (LICAMM), University of Leeds, Leeds, UK
| | - Khyatisha Seejore
- Department of Endocrinology, Leeds Centre for Diabetes & Endocrinology, Leeds Teaching Hospitals NHS Trust, Leeds, UK
- Division of Cardiovascular and Diabetes Research, Leeds Institute of Cardiovascular and Metabolic Medicine (LICAMM), University of Leeds, Leeds, UK
| | - Mitchell Nix
- Cardio-Respiratory Department, Leeds Teaching Hospital NHS Trust, Leeds, UK
| | - Sue Watts
- Cardio-Respiratory Department, Leeds Teaching Hospital NHS Trust, Leeds, UK
| | - Dipansu Ghosh
- Cardio-Respiratory Department, Leeds Teaching Hospital NHS Trust, Leeds, UK
| | - Robert D Murray
- Department of Endocrinology, Leeds Centre for Diabetes & Endocrinology, Leeds Teaching Hospitals NHS Trust, Leeds, UK
- Division of Cardiovascular and Diabetes Research, Leeds Institute of Cardiovascular and Metabolic Medicine (LICAMM), University of Leeds, Leeds, UK
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Watson MD, Cross BL, Grosicki GJ. Evidence for the Contribution of Gut Microbiota to Age-Related Anabolic Resistance. Nutrients 2021; 13:706. [PMID: 33672207 PMCID: PMC7926629 DOI: 10.3390/nu13020706] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 02/08/2021] [Accepted: 02/19/2021] [Indexed: 12/11/2022] Open
Abstract
Globally, people 65 years of age and older are the fastest growing segment of the population. Physiological manifestations of the aging process include undesirable changes in body composition, declines in cardiorespiratory fitness, and reductions in skeletal muscle size and function (i.e., sarcopenia) that are independently associated with mortality. Decrements in muscle protein synthetic responses to anabolic stimuli (i.e., anabolic resistance), such as protein feeding or physical activity, are highly characteristic of the aging skeletal muscle phenotype and play a fundamental role in the development of sarcopenia. A more definitive understanding of the mechanisms underlying this age-associated reduction in anabolic responsiveness will help to guide promyogenic and function promoting therapies. Recent studies have provided evidence in support of a bidirectional gut-muscle axis with implications for aging muscle health. This review will examine how age-related changes in gut microbiota composition may impact anabolic response to protein feeding through adverse changes in protein digestion and amino acid absorption, circulating amino acid availability, anabolic hormone production and responsiveness, and intramuscular anabolic signaling. We conclude by reviewing literature describing lifestyle habits suspected to contribute to age-related changes in the microbiome with the goal of identifying evidence-informed strategies to preserve microbial homeostasis, anabolic sensitivity, and skeletal muscle with advancing age.
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Affiliation(s)
| | | | - Gregory J. Grosicki
- Biodynamics and Human Performance Center, Georgia Southern University (Armstrong Campus), Savannah, GA 31419, USA; (M.D.W.); (B.L.C.)
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Al-Mrabeh A. β-Cell Dysfunction, Hepatic Lipid Metabolism, and Cardiovascular Health in Type 2 Diabetes: New Directions of Research and Novel Therapeutic Strategies. Biomedicines 2021; 9:226. [PMID: 33672162 PMCID: PMC7927138 DOI: 10.3390/biomedicines9020226] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 02/09/2021] [Accepted: 02/17/2021] [Indexed: 02/06/2023] Open
Abstract
Cardiovascular disease (CVD) remains a major problem for people with type 2 diabetes mellitus (T2DM), and dyslipidemia is one of the main drivers for both metabolic diseases. In this review, the major pathophysiological and molecular mechanisms of β-cell dysfunction and recovery in T2DM are discussed in the context of abnormal hepatic lipid metabolism and cardiovascular health. (i) In normal health, continuous exposure of the pancreas to nutrient stimulus increases the demand on β-cells. In the long term, this will not only stress β-cells and decrease their insulin secretory capacity, but also will blunt the cellular response to insulin. (ii) At the pre-diabetes stage, β-cells compensate for insulin resistance through hypersecretion of insulin. This increases the metabolic burden on the stressed β-cells and changes hepatic lipoprotein metabolism and adipose tissue function. (iii) If this lipotoxic hyperinsulinemic environment is not removed, β-cells start to lose function, and CVD risk rises due to lower lipoprotein clearance. (iv) Once developed, T2DM can be reversed by weight loss, a process described recently as remission. However, the precise mechanism(s) by which calorie restriction causes normalization of lipoprotein metabolism and restores β-cell function are not fully established. Understanding the pathophysiological and molecular basis of β-cell failure and recovery during remission is critical to reduce β-cell burden and loss of function. The aim of this review is to highlight the link between lipoprotein export and lipid-driven β-cell dysfunction in T2DM and how this is related to cardiovascular health. A second aim is to understand the mechanisms of β-cell recovery after weight loss, and to explore new areas of research for developing more targeted future therapies to prevent T2DM and the associated CVD events.
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Affiliation(s)
- Ahmad Al-Mrabeh
- Faculty of Medical Sciences, Translational and Clinical Research Institute, Magnetic Resonance Centre, Newcastle University, Newcastle upon Tyne NE2 4HH, UK
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Kim JA, Hwang SY, Yu JH, Roh E, Hong SH, Lee YB, Kim NH, Yoo HJ, Seo JA, Kim NH, Kim SG, Baik SH, Choi KM. Association of the triglyceride and glucose index with low muscle mass: KNHANES 2008-2011. Sci Rep 2021; 11:450. [PMID: 33432036 PMCID: PMC7801612 DOI: 10.1038/s41598-020-80305-1] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Accepted: 12/18/2020] [Indexed: 12/13/2022] Open
Abstract
The triglyceride-glucose (TyG) index is a simple surrogate marker of insulin resistance. We evaluated the association of the TyG index with low muscle mass using a nationwide population-based representative data. This is a cross-sectional study that included 9477 participants aged ≥ 40 years from the Korea National Health and Nutrition Examination Survey between 2008 and 2011. The TyG index was calculated as ln[triglyceride (mg/dL) × fasting plasma glucose (mg/dL)/2]. Dual-energy X-ray absorptiometry was used to measure appendicular lean mass (ALM). Low muscle mass was defined an ALM/weight of 2 standard deviations (SD) below of young participants. The overall prevalence of low muscle mass was 4.7%. The prevalence of low muscle mass increased linearly with the quartiles of the TyG index, 2.5%, 4.2%, 5.6%, and 6.7% in Q1–Q4, respectively. The TyG index was negatively associated with ALM/weight both in men (r = − 0.302) and women (r = − 0.230). The odds ratio (OR) for low muscle mass was 2.08 in the highest quartile compared to the lowest quartile. High TyG index was associated with an increased risk of low muscle mass (OR for 1SD increase: 1.13). Increased TyG index was associated with the risk of low muscle mass independent of confounding factors.
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Affiliation(s)
- Jung A Kim
- Division of Endocrinology and Metabolism, Department of Internal Medicine, College of Medicine, Korea University, Seoul, Republic of Korea
| | - Soon Young Hwang
- Department of Biostatistics, Korea University College of Medicine, Seoul, Republic of Korea
| | - Ji Hee Yu
- Division of Endocrinology and Metabolism, Department of Internal Medicine, College of Medicine, Korea University, Seoul, Republic of Korea
| | - Eun Roh
- Division of Endocrinology and Metabolism, Department of Internal Medicine, College of Medicine, Korea University, Seoul, Republic of Korea
| | - So-Hyeon Hong
- Division of Endocrinology and Metabolism, Department of Internal Medicine, College of Medicine, Korea University, Seoul, Republic of Korea
| | - You-Bin Lee
- Division of Endocrinology and Metabolism, Department of Internal Medicine, College of Medicine, Korea University, Seoul, Republic of Korea
| | - Nam Hoon Kim
- Division of Endocrinology and Metabolism, Department of Internal Medicine, College of Medicine, Korea University, Seoul, Republic of Korea
| | - Hye Jin Yoo
- Division of Endocrinology and Metabolism, Department of Internal Medicine, College of Medicine, Korea University, Seoul, Republic of Korea
| | - Ji A Seo
- Division of Endocrinology and Metabolism, Department of Internal Medicine, College of Medicine, Korea University, Seoul, Republic of Korea
| | - Nan Hee Kim
- Division of Endocrinology and Metabolism, Department of Internal Medicine, College of Medicine, Korea University, Seoul, Republic of Korea
| | - Sin Gon Kim
- Division of Endocrinology and Metabolism, Department of Internal Medicine, College of Medicine, Korea University, Seoul, Republic of Korea
| | - Sei Hyun Baik
- Division of Endocrinology and Metabolism, Department of Internal Medicine, College of Medicine, Korea University, Seoul, Republic of Korea
| | - Kyung Mook Choi
- Division of Endocrinology and Metabolism, Department of Internal Medicine, College of Medicine, Korea University, Seoul, Republic of Korea.
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Geng T, Wang M, Li X, Zhou T, Ma H, Fonseca VA, Koh WP, Huang T, Heianza Y, Qi L. Birth weight modifies the relation between adulthood levels of insulin-like growth factor-1 and type 2 diabetes: a prospective cohort study. BMJ Open Diabetes Res Care 2021; 9:9/1/e001885. [PMID: 33648986 PMCID: PMC7925240 DOI: 10.1136/bmjdrc-2020-001885] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2020] [Revised: 11/18/2020] [Accepted: 11/25/2020] [Indexed: 11/03/2022] Open
Abstract
INTRODUCTION Insulin-like growth factor-1 (IGF-1) has been implicated in fetal and early-life growth and development of type 2 diabetes (T2D). We aimed to examine the interaction between circulating IGF-1 and birth weight in relation to risk of T2D. RESEARCH DESIGN AND METHODS We included 181 090 adults, aged 39-70 years in the UK Biobank Study, who were free of diabetes or major cardiovascular diseases at baseline. Serum IGF-1 levels were determined using chemiluminescent immunoassay method. Birth weight was self-reported; a Genetic Risk Score (GRS) was calculated to define the genetically determined birth weight. The outcome was the incidence of T2D. RESULTS We identified 3299 incident T2D cases over an average of 9.9 years of follow-up. Among the participants with birth weight of ≥2.5 kg, IGF-1 levels were inversely associated with T2D risk in a dose-dependent manner (p-trend<0.001). In contrast, the association was not significant among those with birth weight of <2.5 kg (p-interaction=0.001). The GRS of birth weight did not interact with IGF-1 levels on T2D risk. CONCLUSIONS Our results indicate that birth weight significantly modifies the relation between adulthood levels of circulating IGF-1 and the risk of T2D. Our findings highlight the importance of early-life risk factors in the development of the lifecourse prevention strategies targeting IGF-1 and T2D.
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Affiliation(s)
- Tingting Geng
- Saw Swee Hock School of Public Health, National University of Singapore, Singapore
- Department of Epidemiology, School of Public Health and Tropical Medicine,Tulane University, New Orleans, Louisiana, USA
| | - Mengying Wang
- Department of Epidemiology, School of Public Health and Tropical Medicine,Tulane University, New Orleans, Louisiana, USA
- Department of Epidemiology & Biostatistics, School of Public Health, Peking University, Beijing, China
| | - Xiang Li
- Department of Epidemiology, School of Public Health and Tropical Medicine,Tulane University, New Orleans, Louisiana, USA
| | - Tao Zhou
- Department of Epidemiology, School of Public Health and Tropical Medicine,Tulane University, New Orleans, Louisiana, USA
| | - Hao Ma
- Department of Epidemiology, School of Public Health and Tropical Medicine,Tulane University, New Orleans, Louisiana, USA
| | - Vivian A Fonseca
- Section of Endocrinology and Metabolism, Tulane University School of Medicine, New Orleans, Louisiana, USA
| | - Woon-Puay Koh
- Saw Swee Hock School of Public Health, National University of Singapore, Singapore
- Health Services and Systems Research, Duke-NUS Medical School, Singapore
| | - Tao Huang
- Department of Epidemiology & Biostatistics, School of Public Health, Peking University, Beijing, China
- Key Laboratory of Molecular Cardiovascular Sciences, Peking University, Beijing, China
- Center for Intelligent Public Health, Academy for Artificial Intelligence, Beijing, China
| | - Yoriko Heianza
- Department of Epidemiology, School of Public Health and Tropical Medicine,Tulane University, New Orleans, Louisiana, USA
| | - Lu Qi
- Department of Epidemiology, School of Public Health and Tropical Medicine,Tulane University, New Orleans, Louisiana, USA
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
- Channing Division of Network Medicine,Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA
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Al-Mrabeh A. Pathogenesis and remission of type 2 diabetes: what has the twin cycle hypothesis taught us? Cardiovasc Endocrinol Metab 2020; 9:132-142. [PMID: 33225228 PMCID: PMC7673778 DOI: 10.1097/xce.0000000000000201] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Accepted: 03/23/2020] [Indexed: 02/06/2023]
Abstract
Type 2 diabetes has been regarded a complex multifactorial disease that lead to serious health complications including high cardiovascular risks. The twin cycle hypothesis postulated that both hepatic insulin resistance and dysfunction rather than death of beta (β) cell determine diabetes onset. Several studies were carried out to test this hypothesis, and all demonstrated that chronic excess calorie intake and ectopic fat accumulation within the liver and pancreas are fundamental to the development of this disease. However, these recent research advances cannot determine the exact cause of this disease. In this review, the major factors that contribute to the pathogenesis and remission of type 2 diabetes will be outlined. Importantly, the effect of disordered lipid metabolism, characterized by altered hepatic triglyceride export will be discussed. Additionally, the observed changes in pancreas morphology in type 2 diabetes will be highlighted and discussed in relation to β cell function.
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Affiliation(s)
- Ahmad Al-Mrabeh
- Magnetic Resonance Centre, Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK
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79
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Al-Mrabeh A, Hollingsworth KG, Shaw JAM, McConnachie A, Sattar N, Lean MEJ, Taylor R. 2-year remission of type 2 diabetes and pancreas morphology: a post-hoc analysis of the DiRECT open-label, cluster-randomised trial. Lancet Diabetes Endocrinol 2020; 8:939-948. [PMID: 33031736 DOI: 10.1016/s2213-8587(20)30303-x] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Revised: 08/14/2020] [Accepted: 08/18/2020] [Indexed: 01/03/2023]
Abstract
BACKGROUND The pancreas is small and irregular in shape in people with type 2 diabetes. If these abnormalities are caused by the disease state itself rather than being a predisposing factor, remission of type 2 diabetes should restore normal pancreas morphology. The objective of this study was to determine whether changes in pancreas volume and shape occurred during 2 years of remission. METHODS For this post-hoc analysis, we included a subset of adult participants of the Diabetes Remission Clinical Trial (DiRECT), who had type 2 diabetes and were randomly assigned to a weight management intervention or routine diabetes management. Intervention group participants were categorised as responders (HbA1c <6·5% [48 mmol/mol] and fasting blood glucose <7·0 mmol/L, off all anti-diabetes medication) and non-responders, who were classified as remaining diabetic. Data on pancreas volume and irregularity of pancreas border at baseline, 5 months, 12 months, and 24 months after intervention were compared between responders and non-responders; additional comparisons were made between control group participants with type 2 diabetes and a non-diabetic comparator (NDC) group, who were matched to the intervention group by age, sex, and post-weight-loss weight, to determine the extent of any normalisation. We used a mixed-effects regression model based on repeated measures ANOVA with correction for potential confounding. Magnetic resonance techniques were employed to quantify pancreas volume, the irregularity of the pancreas borders, and intrapancreatic fat content. β-cell function and biomarkers of tissue growth were also measured. FINDINGS Between July 25, 2015, and Aug 5, 2016, 90 participants with type 2 diabetes in the DiRECT subset were randomly assigned to intervention (n=64) or control (n=26) and were assessed at baseline; a further 25 non-diabetic participants were enrolled into the NDC group. At baseline, mean pancreas volume was 61·7 cm3 (SD 16·0) in all participants with type 2 diabetes and 79·8 cm3 (14·3) in the NDC group (p<0·0001). At 24 months, pancreas volume had increased by 9·4 cm3 (95% CI 6·1 to 12·8) in responders compared with 6·4 cm3 (2·5 to 10·3) in non-responders (p=0·0008). Pancreas borders at baseline were more irregular in participants with type 2 diabetes than in the NDC group (fractal dimension 1·138 [SD 0·027] vs 1·097 [0·025]; p<0·0001) and had normalised by 24 months in responders only (1·099 [0·028]). Intrapancreatic fat declined by 1·02 percentage points (95% CI 0·53 to 1·51) in 32 responders and 0·51% (-0·17 to 1·19) in 13 non-responders (p=0·23). INTERPRETATION These data show for the first time, to our knowledge, reversibility of the abnormal pancreas morphology of type 2 diabetes by weight loss-induced remission. FUNDING Diabetes UK.
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Affiliation(s)
- Ahmad Al-Mrabeh
- Magnetic Resonance Centre, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK.
| | - Kieren G Hollingsworth
- Magnetic Resonance Centre, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
| | - James A M Shaw
- Regenerative Medicine, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
| | - Alex McConnachie
- Robertson Centre for Biostatistics, University of Glasgow, Glasgow, UK
| | - Naveed Sattar
- Institute of Cardiovascular and Medical Science, University of Glasgow, Glasgow, UK
| | - Michael E J Lean
- School of Medicine, Dentistry and Nursing, University of Glasgow, Glasgow, UK
| | - Roy Taylor
- Magnetic Resonance Centre, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
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Park JB, Kim DH, Lee H, Hwang IC, Yoon YE, Park HE, Choi SY, Kim YJ, Cho GY, Han K, Ommen SR, Kim HK. Obesity and metabolic health status are determinants for the clinical expression of hypertrophic cardiomyopathy. Eur J Prev Cardiol 2020; 27:1849-1857. [DOI: 10.1177/2047487319889714] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Aims
We sought to investigate the association of obesity and metabolic health status with the incidence of clinical hypertrophic cardiomyopathy (HCM) diagnosis in the general population. Our goal was to identify modifiable risk factors to attenuate clinical expression of HCM, enabling management evolution from a mostly passive strategy of risk stratification to a proactive strategy of modifying disease expression.
Methods
Using nationwide population-based data from the Korean National Health Insurance Service, 28,679,891 people who were free of prevalent HCM and who underwent health examinations between 2009 and 2015 were followed until 31 December 2016. The primary outcome was clinical HCM that was defined as incident diagnosis of HCM during the follow-up, after a blanking period of 12 months.
Results
Over a median follow-up of 5.2 years, 0.027% (n = 7851) of the study participants were diagnosed as incident HCM. The incidence rate per 1000 person-years was 0.059. A significant association was found between body mass index (BMI) and the incidence of clinical HCM after multivariate adjustment, with a hazard ratio per 1 kg/m2 increase in BMI of 1.063 (95% confidence interval 1.051–1.075). Metabolically unhealthy participants had a greater incidence of HCM than metabolically healthy participants, regardless of obesity status. The effect of BMI was more pronounced in several subgroups, including participants with no hypertension, those aged less than 65 years and men.
Conclusion
We found that individuals with obesity and/or metabolic abnormalities had a significantly higher incidence of clinical HCM diagnosis than their counterparts. Efforts to manage obesity and metabolic abnormalities may be important in modifying clinical expression of HCM.
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Affiliation(s)
- Jun-Bean Park
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
- Cardiovascular Center, Seoul National University Hospital, Seoul, Republic of Korea
| | - Da Hye Kim
- Department of Medical Statistics, The Catholic University of Korea College of Medicine, Seoul, Republic of Korea
| | - Heesun Lee
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
- Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Republic of Korea
| | - In-Chang Hwang
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
- Department of Cardiology, Cardiovascular Center, Seoul National University Bundang Hospital, Seongnam, Gyeonggi, South Korea
| | - Yeonyee E Yoon
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
- Department of Cardiology, Cardiovascular Center, Seoul National University Bundang Hospital, Seongnam, Gyeonggi, South Korea
| | - Hyo Eun Park
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
- Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Republic of Korea
| | - Su-Yeon Choi
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
- Healthcare System Gangnam Center, Seoul National University Hospital, Seoul, Republic of Korea
| | - Yong-Jin Kim
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
- Cardiovascular Center, Seoul National University Hospital, Seoul, Republic of Korea
| | - Goo-Yeong Cho
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
- Department of Cardiology, Cardiovascular Center, Seoul National University Bundang Hospital, Seongnam, Gyeonggi, South Korea
| | - Kyungdo Han
- Department of Medical Statistics, The Catholic University of Korea College of Medicine, Seoul, Republic of Korea
| | - Steve R Ommen
- Division of Cardiovascular Diseases, Mayo Clinic College of Medicine, Rochester, MN, USA
| | - Hyung-Kwan Kim
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
- Cardiovascular Center, Seoul National University Hospital, Seoul, Republic of Korea
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Skajaa GO, Fuglsang J, Knorr S, Møller N, Ovesen P, Kampmann U. Changes in insulin sensitivity and insulin secretion during pregnancy and post partum in women with gestational diabetes. BMJ Open Diabetes Res Care 2020; 8:8/2/e001728. [PMID: 33115822 PMCID: PMC7594208 DOI: 10.1136/bmjdrc-2020-001728] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 08/23/2020] [Accepted: 09/14/2020] [Indexed: 12/30/2022] Open
Abstract
INTRODUCTION The metabolic abnormalities underlying gestational diabetes mellitus (GDM) include increased insulin resistance and beta cell defects, but it is essential to clarify how insulin resistance and insulin secretion develop post partum in order to decide when and how to screen for type 2 diabetes. The purpose of the present study was to characterize and compare changes in insulin sensitivity, insulin secretion and hormonal status around parturition and 6 months post partum in women with gestational diabetes. RESEARCH DESIGN AND METHODS A longitudinal experimental study was performed at Aarhus University Hospital, Denmark. Eight women with GDM were examined at three identical visits: in late pregnancy (LP) between gestational age 34+0 and 36+6, early post partum (EPP) between 12 and 34 days post partum, and late post partum (LPP) 6 months post partum. An intravenous glucose tolerance test was performed, followed by a hyperinsulinemic euglycemic clamp. Blood samples were collected to assess metabolic, hormonal and inflammatory markers at each visit. RESULTS First and second phase insulin secretion and C-peptide concentrations were higher in late pregnancy than post partum (p<0.001). Insulin sensitivity index (ISI) was different at all three visits: ISILP=0.03±0.004, ISIEPP=0.09±0.008 and ISILPP=0.07±0.008) (p<0.001). Also, significant changes in lipids, leptin, glucagon, growth hormone and insulin-like growth factor-1 were seen when comparing the visits. CONCLUSIONS Insulin sensitivity improves immediately after delivery in women with GDM but seems to deteriorate within the first 6 months post partum. Our findings underline the importance of having an increased awareness of the profound risk of developing type 2 diabetes after GDM. TRIAL REGISTRATION NUMBER NCT02770079.
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Affiliation(s)
- Gitte Oeskov Skajaa
- Department of Obstetrics and Gynecology, Aarhus University Hospital, Aarhus, Denmark
| | - Jens Fuglsang
- Department of Obstetrics and Gynecology, Aarhus University Hospital, Aarhus, Denmark
| | - Sine Knorr
- Steno Diabetes Center Aarhus, Aarhus University Hospital, Aarhus, Denmark
| | - Niels Møller
- Medical Research Laboratories, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Per Ovesen
- Department of Obstetrics and Gynecology, Aarhus University Hospital, Aarhus, Denmark
| | - Ulla Kampmann
- Steno Diabetes Center Aarhus, Aarhus University Hospital, Aarhus, Denmark
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82
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Ding L, Houben T, Oligschlaeger Y, Bitorina AV, Verwer BJ, Tushuizen ME, Shiri-Sverdlov R. Plasma Cathepsin D Activity Rather Than Levels Correlates With Metabolic Parameters of Type 2 Diabetes in Male Individuals. Front Endocrinol (Lausanne) 2020; 11:575070. [PMID: 33101209 PMCID: PMC7554511 DOI: 10.3389/fendo.2020.575070] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 09/11/2020] [Indexed: 02/01/2023] Open
Abstract
Objective Type 2 diabetes mellitus is a metabolic disorder characterized by insulin resistance. Previous studies in patients demonstrated that plasma levels of cathepsin D (CTSD), which is optimally active in the acidic environment of lysosomes, correlate with insulin resistance. As plasma pH is slightly reduced in type 2 diabetic patients and we have previously shown that plasma CTSD activity is causally linked to insulin levels in vivo, it is likely that the activity of CTSD in plasma will be increased in type 2 diabetes compared to healthy individuals. However, so far the interaction between CTSD activity and levels to postprandial metabolic derangements in type 2 diabetes is not known. Methods Eighteen type 2 diabetes and 16 age-matched healthy males were given 2 consecutive standardized mixed meals, after which blood samples were collected. Plasma metabolic parameters as well as CTSD levels and activity were measured, and changes in plasma pH was assessed. Results In line with the elevation of plasma free fatty acids (FFA) levels in male type 2 diabetics patients, plasma pH in type 2 diabetic individuals was decreased compared to male healthy individuals. While plasma CTSD levels were similar, plasma CTSD activity was increased in male type 2 diabetic compared to male healthy individuals. Besides, plasma CTSD activity rather than levels significantly correlated with indicators of type 2 diabetes (HbA1c, HOMA-IR and glucose). Furthermore, FFA was also independently associated with plasma CTSD activity (standardized β = 0.493, p = 0.007). Conclusions Despite similar plasma CTSD levels, type 2 diabetic male individuals showed increased plasma CTSD activity compared to healthy males, which was independently linked to plasma FFA levels. Our data therefore point toward plasma CTSD as a metabolic regulator in male type 2 diabetes.
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Affiliation(s)
- Lingling Ding
- Department of Molecular Genetics, School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht Universtiy, Maastricht, Netherlands
| | - Tom Houben
- Department of Molecular Genetics, School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht Universtiy, Maastricht, Netherlands
| | - Yvonne Oligschlaeger
- Department of Molecular Genetics, School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht Universtiy, Maastricht, Netherlands
| | - Albert V. Bitorina
- Department of Molecular Genetics, School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht Universtiy, Maastricht, Netherlands
| | - Bart J. Verwer
- Department of Gastroenterology and Hepatology, Leiden University Medical Center, Leiden, Netherlands
| | - Maarten E. Tushuizen
- Department of Gastroenterology and Hepatology, Leiden University Medical Center, Leiden, Netherlands
| | - Ronit Shiri-Sverdlov
- Department of Molecular Genetics, School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht Universtiy, Maastricht, Netherlands
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Brener A, Sagi L, Shtamler A, Levy S, Fattal-Valevski A, Lebenthal Y. Insulin-like growth factor-1 status is associated with insulin resistance in young patients with spinal muscular atrophy. Neuromuscul Disord 2020; 30:888-896. [PMID: 33071067 DOI: 10.1016/j.nmd.2020.09.025] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 09/08/2020] [Accepted: 09/10/2020] [Indexed: 12/13/2022]
Abstract
Insulin-like growth factor-1 (IGF-1) is an anabolic hormone with myotrophic effects on muscle tissue. Patients with spinal muscular atrophy (SMA) sustain early-onset sarcopenia, which contributes to an increased prevalence of insulin resistance. Our aim was to determine the IGF-1 status in 5q-SMA patients and its association with insulin resistance. Real-life clinical and laboratory data of 34 patients (15 males; age 3 months-24 years) included: anthropometric measurements [weight, height/length, body mass index or weight-to-length ratio, delta-height standard deviation score (∆Ht SDS) as the difference between height/length SDS and mid-parental height (MPHt) SDS] and laboratory measurements [Homeostatic Model Assessment of Insulin Resistance (HOMA-IR) and IGF-1]. HOMA-IR levels categorized patients as insulin-resistant [HOMA-IR ≥1.9 (n = 20)] or insulin-sensitive [HOMA-IR <1.9 (n = 14)]. The collective height/length SDS was -0.29±1.34 and ∆Ht SDS was -0.11±1.47. IGF-1 levels were within the normal population range for all patients. Insulin-resistant patients had higher IGF-1 SDS levels compared to insulin-sensitive patients (0.87±0.78 vs. -0.67±0.96, respectively, P<0.001). The IGF-1 SDS was significantly associated with HOMA-IR for all subjects (r = 0.547, P = 0.001), and linear growth parameters (height/length SDS, ∆Ht SDS) were significantly associated with IGF-1 SDS in the insulin-resistant subgroup (r = 0.649, P = 0.002 and r = 0.605, P = 0.005, respectively). Our findings suggest that IGF-1 status is associated with insulin resistance in patients with early-onset sarcopenia.
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Affiliation(s)
- Avivit Brener
- Pediatric Endocrinology and Diabetes Unit, Dana-Dwek Children's Hospital, Tel Aviv Sourasky Medical Center, Israel; Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.
| | - Liora Sagi
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel; Pediatric Neurology Institute, Dana-Dwek Children's Hospital, Tel Aviv Sourasky Medical Center, Israel
| | - Anna Shtamler
- Pediatric Neurology Institute, Dana-Dwek Children's Hospital, Tel Aviv Sourasky Medical Center, Israel
| | - Sigal Levy
- Statistical Education Unit, The Academic College of Tel Aviv-Yaffo, Tel Aviv, Israel
| | - Aviva Fattal-Valevski
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel; Pediatric Neurology Institute, Dana-Dwek Children's Hospital, Tel Aviv Sourasky Medical Center, Israel
| | - Yael Lebenthal
- Pediatric Endocrinology and Diabetes Unit, Dana-Dwek Children's Hospital, Tel Aviv Sourasky Medical Center, Israel; Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
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84
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Larsson SC, Michaëlsson K, Burgess S. IGF-1 and cardiometabolic diseases: a Mendelian randomisation study. Diabetologia 2020; 63:1775-1782. [PMID: 32548700 PMCID: PMC7406523 DOI: 10.1007/s00125-020-05190-9] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Accepted: 04/21/2020] [Indexed: 12/13/2022]
Abstract
AIMS/HYPOTHESIS Abnormal serum IGF-1 levels are associated with an increased risk of type 2 diabetes and cardiovascular disease. However, the causal role of IGF-1 levels within the normal range in cardiometabolic disease remains unclear. We employed Mendelian randomisation to explore the associations between genetically predicted serum IGF-1 levels and cardiometabolic diseases. METHODS Serum IGF-1 levels were predicted using 416 SNPs associated with IGF-1 levels among 358,072 individuals in UK Biobank. Genetic association estimates for the outcomes were obtained from consortia of type 2 diabetes (74,124 cases, 824,006 controls), coronary artery disease (60,801 cases, 123,504 controls), heart failure (47,309 cases, 930,014 controls), atrial fibrillation (65,446 cases, 522,744 controls), and ischaemic stroke (60,341 cases, 454,450 controls). RESULTS Genetic predisposition to elevated serum IGF-1 levels was associated with higher risk of type 2 diabetes and coronary artery disease. The OR (95% CI) per SD increment in IGF-1 level was 1.14 (1.05, 1.24) for type 2 diabetes and 1.09 (1.02, 1.16) for coronary artery disease. The association between IGF-1 and coronary artery disease was attenuated after adjustment for type 2 diabetes (OR 1.06 [95% CI 1.00, 1.13]), suggesting that the association may be partly mediated via type 2 diabetes. There was limited evidence of associations between IGF-1 levels and heart failure, atrial fibrillation and ischaemic stroke. CONCLUSIONS/INTERPRETATION This study found evidence that increased IGF-1 levels may be causally associated with higher risk of type 2 diabetes. Graphical abstract.
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Affiliation(s)
- Susanna C Larsson
- Department of Surgical Sciences, Uppsala University, Epihubben, 75185, Uppsala, Sweden.
- Unit of Cardiovascular and Nutritional Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.
| | - Karl Michaëlsson
- Department of Surgical Sciences, Uppsala University, Epihubben, 75185, Uppsala, Sweden
| | - Stephen Burgess
- Department of Public Health and Primary Care, University of Cambridge, Cambridge, UK
- MRC Biostatistics Unit, University of Cambridge, Cambridge, UK
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85
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Okamura T, Hashimoto Y, Hamaguchi M, Obora A, Kojima T, Fukui M. Triglyceride-glucose index (TyG index) is a predictor of incident colorectal cancer: a population-based longitudinal study. BMC Endocr Disord 2020; 20:113. [PMID: 32709256 PMCID: PMC7379831 DOI: 10.1186/s12902-020-00581-w] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Accepted: 06/22/2020] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND Colorectal cancer (CRC), which is related with insulin resistance, is a one of the most common cancers. Triglyceride-glucose index (TyG index) was made for a marker of insulin resistance. We conducted the investigation of association between TyG index and incident CRC. METHODS We examined the affect of TyG index on incident CRC in this historical cohort study of 27,944 (16,454 men and 11,490 women) participants. TyG index was calculated as ln [fasting triglycerides (mg/dL) × fasting plasma glucose (mg/dL)/2]. The impact of TyG index on incident CRC was investigated using Cox proportional hazard models, adjusting for sex, age, body mass index, smoking status, alcohol consumption, exercise, systolic blood pressure and creatinine. The covariate-adjusted receiver operating characteristic (ROC) curve calculated the area under the curve (AUC) and cut-off value of TyG index for the incidence of CRC. RESULTS During the median 4.4-year follow-up, 116 participants were diagnosed as CRC. The cumulative incidence rate of CRC were 0.4%. In Cox proportional hazard model, the HRs of TyG index were 1.38 (95% Confidence interval (CI), 1.00-1.91, p = 0.049) after adjusting for covariates. In the covariate-adjusted ROC curve analysis, the cut-off value of TyG index for incident CRC was 8.272 (AUC 0.687 (95%CI, 0.637-737, sensitivity = 0.620, specificity = 0.668, p < 0.001)). CONCLUSIONS TyG index can predict the onset of CRC. For early detection of CRC, we should encourage people with high TyG index to undergo screening for CRC.
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Affiliation(s)
- Takuro Okamura
- Department of Endocrinology and Metabolism, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, 465, Kajii-cho, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto, 602-8566, Japan
| | - Yoshitaka Hashimoto
- Department of Endocrinology and Metabolism, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, 465, Kajii-cho, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto, 602-8566, Japan
| | - Masahide Hamaguchi
- Department of Endocrinology and Metabolism, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, 465, Kajii-cho, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto, 602-8566, Japan.
| | - Akihiro Obora
- Department of Gastroenterology, Asahi University Hospital, Gifu, Japan
| | - Takao Kojima
- Department of Gastroenterology, Asahi University Hospital, Gifu, Japan
| | - Michiaki Fukui
- Department of Endocrinology and Metabolism, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, 465, Kajii-cho, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto, 602-8566, Japan
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Fahed M, Abou Jaoudeh MG, Merhi S, Mosleh JMB, Ghadieh R, Al Hayek S, El Hayek Fares JE. Evaluation of risk factors for insulin resistance: a cross sectional study among employees at a private university in Lebanon. BMC Endocr Disord 2020; 20:85. [PMID: 32522257 PMCID: PMC7288486 DOI: 10.1186/s12902-020-00558-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Accepted: 05/25/2020] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Worldwide, the prevalence of insulin resistance ranges from 15.5 to 46.5%, among adults. Lebanon reported one of the highest rates reaching 44.6%. The literature suggests an association between dairy product consumption and insulin resistance, however results are inconclusive. To our knowledge, no study examined this association in the Middle Eastern Region. The aim of the study was to investigate the prevalence of insulin resistance among a sample of Lebanese adults, to identify its risk factors depending on gender, and to evaluate the association between insulin resistance and dairy products consumption. METHODS A cross-sectional study was conducted among employees at Notre Dame University - Louaize. Four questionnaires were administered including a background and International Physical Activity Questionnaire short form questionnaires, food frequency questionnaire and a 24 h recall. Bioelectric Impedance Analysis (BIA) was used to measure percent body fat (PBF). Homeostatic Model Assessment for Insulin Resistance (HOMA-IR) was used to quantify insulin resistance. A person with HOMA-IR ≥ 2.5 was considered as insulin resistant. Statistical analyses were performed using the Statistical Package for Social Sciences version 23 for Windows. P < 0.05 was considered statistically significant. RESULTS Out of 286 study participants, 38.0% were insulin resistant. Average dairy product intake in the total sample was 2.2 ± 1.0 servings per day. Among males, the odds of having insulin resistance were 3.9 times higher (95%CI 1.4-11.0; p = 0.009) for those having a risky waist circumference compared to those having a healthy waist circumference. Among females, being married (OR: 0.2, 95%CI 0.1-0.5; p = 0.002), PBF (OR: 1.2, 95%CI 1.0-1.3; p = 0.008) and hypertriglyceridemia (OR: 8.7, 95%CI: 2.1-35.9; p = 0.003) were associated with HOMA-IR, after controlling for confounders. Dairy intake was not associated with HOMA-IR neither among males (p = 0.777), nor among females (p = 0.968), after controlling for confounders. CONCLUSION Dairy consumption was not associated with increased insulin resistance. More research focusing on the relationship between dairy intake and insulin resistance is needed, especially in the Arab and Middle-Eastern region. Future studies should examine the effect of different types of dairy products and the effect of different nutrients in dairy products on insulin resistance.
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Affiliation(s)
- Myriam Fahed
- Department of Nursing and Health Sciences, Notre Dame University- Louaize (NDU), Zouk Mosbeh, Lebanon
| | - Maya G. Abou Jaoudeh
- Department of Nursing and Health Sciences, Notre Dame University- Louaize (NDU), Zouk Mosbeh, Lebanon
| | - Samar Merhi
- Department of Nursing and Health Sciences, Notre Dame University- Louaize (NDU), Zouk Mosbeh, Lebanon
| | - Jocelyne Matar Bou Mosleh
- Department of Nursing and Health Sciences, Notre Dame University- Louaize (NDU), Zouk Mosbeh, Lebanon
| | - Rachelle Ghadieh
- Department of Nursing and Health Sciences, Notre Dame University- Louaize (NDU), Zouk Mosbeh, Lebanon
- Department of Endocrinology, Diabetes, Metabolism and Eating Disorders, University Hospital of Saint-Etienne, Saint-Etienne Cedex, France
| | - Sibelle Al Hayek
- Department of Nursing and Health Sciences, Notre Dame University- Louaize (NDU), Zouk Mosbeh, Lebanon
- Department of Dietetics and Nutrition, The University of Kansas Medical Center, 3901 Rainbow Blvd, Kansas City, KS 66160 USA
| | - Jessy E. El Hayek Fares
- Department of Nursing and Health Sciences, Notre Dame University- Louaize (NDU), Zouk Mosbeh, Lebanon
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Maternal undernutrition during pregnancy and lactation affects testicular morphology, the stages of spermatogenic cycle, and the testicular IGF-I system in adult offspring. J Dev Orig Health Dis 2020; 11:473-483. [PMID: 32340648 DOI: 10.1017/s2040174420000306] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Maternal undernutrition decreases sperm production in male offspring, possibly through insulin-like growth factor (IGF-I). To test this hypothesis, we fed pregnant Wistar rats ad libitum with a standard diet (CONTROL) or fed 50% of CONTROL intake, either throughout pregnancy (UNP), lactation (UNL, or both (UNPL). After weaning, male offspring (n = 10 per treatment) were fed a standard diet until postnatal day 160, when testes process for histological and molecular analyses. IGF-I immunostaining area and intensity in the testis were greater (P = 0.003) in the UNPL group compared to CONTROL, but lower in the UNP group (P < 0.0001). Levels of IGF-I receptor transcript were lower in the UNPL and UNL groups, compared to CONTROL. There were more Ki-67-positive germ and Sertoli cells, in all underfed groups than in CONTROL. Compared to CONTROL, frequency of spermatogenic cycle stage VII was lower in all underfed groups, and seminiferous tubule diameter was smaller in UNP and UNPL. Plasma FSH concentrations were greater in UNP male offspring compared to all groups (P = 0.05), whereas inhibin B concentrations were greater in UNP (P = 0.01) and UNL (P = 0.003) than in CONTROL or UNPL. Thus, prenatal undernutrition leads to a decrease in testicular IGF-I levels, whereas of pre- and postnatal undernutrition increased testicular IGF-I levels and decreased amounts of IGF-I receptor mRNA in adult offspring. We conclude that maternal undernutrition during pregnancy and lactation leads to long-lasting effects on adult male offspring testicular morphology, spermatogenesis, and IGF-I testicular system.
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88
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Narduzzi L, Dervilly G, Marchand A, Audran M, Le Bizec B, Buisson C. Applying metabolomics to detect growth hormone administration in athletes: Proof of concept. Drug Test Anal 2020; 12:887-899. [DOI: 10.1002/dta.2798] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Revised: 03/29/2020] [Accepted: 03/29/2020] [Indexed: 02/06/2023]
Affiliation(s)
- Luca Narduzzi
- Laboratoire d’Etude des Résidus et Contaminants dans les Aliments (LABERCA), Oniris INRAE Nantes F‐44307 France
| | - Gaud Dervilly
- Laboratoire d’Etude des Résidus et Contaminants dans les Aliments (LABERCA), Oniris INRAE Nantes F‐44307 France
| | - Alexandre Marchand
- Département des analyses Agence Française de Lutte contre le Dopage (AFLD) Châtenay‐Malabry France
| | - Michel Audran
- Département des analyses Agence Française de Lutte contre le Dopage (AFLD) Châtenay‐Malabry France
| | - Bruno Le Bizec
- Laboratoire d’Etude des Résidus et Contaminants dans les Aliments (LABERCA), Oniris INRAE Nantes F‐44307 France
| | - Corinne Buisson
- Département des analyses Agence Française de Lutte contre le Dopage (AFLD) Châtenay‐Malabry France
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Hedetoft M, Olsen NV, Smidt-Nielsen IG, Wahl AM, Bergström A, Juul A, Hyldegaard O. Measurement of peripheral arterial tonometry in patients with diabetic foot ulcers during courses of hyperbaric oxygen treatment. Diving Hyperb Med 2020; 50:17-23. [PMID: 32187613 DOI: 10.28920/dhm50.1.17-23] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Accepted: 11/22/2019] [Indexed: 12/18/2022]
Abstract
INTRODUCTION Treatment of diabetic foot ulcers is complex and often protracted. Hyperbaric oxygen treatment (HBOT) improves wound healing in diabetic ulcers and serves as an important adjunct to regular diabetic wound care. Endothelial dysfunction plays a central role in diabetes-related vascular complications and may be evaluated by a non-invasive technique called peripheral arterial tonometry which measures a reactive hyperaemia index (RHI). We hypothesized that endothelial function measured by peripheral arterial tonometry is impaired in diabetic foot ulcer patients and that HBOT might improve endothelial function. METHODS Endothelial function was prospectively assessed by peripheral arterial tonometry in 22 subjects with diabetic foot ulcers and 17 subjects without diabetes during courses of HBOT. Endothelial function was evaluated before first (baseline) and 30th treatments, and at 90-day follow-up. Serum insulin growth factor-I (IGF-I) concentrations were determined by immunoassay. Results were compared to 23 healthy subjects. RESULTS No baseline differences were found in endothelial function between subjects with diabetes, HBOT patients without-diabetes and healthy control subjects (RHI; 1.26, 1.61 and 1.81, respectively). No significant changes in RHI were found in patients with (P = 0.17) or without (P = 0.30) diabetes during courses of HBOT. At 90-day follow-up IGF-I was significantly reduced in the subjects with diabetes (P = 0.001) and unchanged in the group without diabetes (P = 0.99). CONCLUSIONS We found no significant differences in RHI between subjects with diabetic foot ulcers and patients without diabetes, nor improvement in endothelial function assessed by peripheral arterial tonometry during courses of HBOT.
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Affiliation(s)
- Morten Hedetoft
- The Hyperbaric Oxygen Treatment Unit, Department of Anaesthesia, Centre of Head and Orthopaedics, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark.,Corresponding author: Dr Morten Hedetoft, The Hyperbaric Oxygen Treatment Unit, Department of Anaesthesia, Centre of Head and Orthopaedics, Copenhagen University Hospital, Rigshospitalet, Blegdamsvej 9, 2100 Copenhagen, Denmark,
| | - Niels V Olsen
- The Hyperbaric Oxygen Treatment Unit, Department of Anaesthesia, Centre of Head and Orthopaedics, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Isabel G Smidt-Nielsen
- The Hyperbaric Oxygen Treatment Unit, Department of Anaesthesia, Centre of Head and Orthopaedics, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Anna M Wahl
- The Hyperbaric Oxygen Treatment Unit, Department of Anaesthesia, Centre of Head and Orthopaedics, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Anita Bergström
- Center for Functional and Diagnostic Imaging and Research, Hvidovre Hospital, University of Copenhagen, Denmark
| | - Anders Juul
- Department of Clinical Medicine, University of Copenhagen, Denmark.,Department of Growth and Reproduction, Rigshospitalet, University of Copenhagen, Denmark
| | - Ole Hyldegaard
- The Hyperbaric Oxygen Treatment Unit, Department of Anaesthesia, Centre of Head and Orthopaedics, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark.,Department of Clinical Medicine, University of Copenhagen, Denmark
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90
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Demir AK, Şahin Ş, Kaya SU, Bütün İ, Çıtıl R, Önder Y, Taşlıyurt T, Demir O, Deveci K, Kutlutürk F. Prevalence of insulin resistance and identifying HOMA1-IR and HOMA2-IR indexes in the Middle Black Sea region of Turkey. Afr Health Sci 2020; 20:277-286. [PMID: 33402916 PMCID: PMC7750083 DOI: 10.4314/ahs.v20i1.33] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Background Insulin resistance (IR) is one of the most important etiological risk factors in the development of diabetes. However, there is no clear data regarding the prevalence of IR in the country. Objective This study evaluates the prevalence of IR and identifies the optimal threshold values for the HOMA indexes in Turkey. Methods This cross-sectional, population-based survey includes 2013 participants aged 20–84 years. The values of the anthropometric measurements and laboratory analysis were recorded. The 90th percentile in the non-obese and non-diabetic population was accepted as cut-off values for IR. Results The optimal threshold values for IR were 2.46 in HOMA1-IR and 1.40 in HOMA2-IR. Using the HOMA2-IR method, the overall prevalence of IR was 33.2%. The IR prevalence was higher in women (35.6%) compared to men (30.1%) [p=0.008]. There was a higher IR prevalence in men living in urban areas (p=0.001), not in women. The multivariate logistic regression analysis showed that gender, serum glucose level, serum levels of triglycerides and high-density lipoprotein cholesterol, bodymass index and income status were associated with insulin resistance. Conclusion The cut-off values of HOMA1-IR and HOMA2-IR were determined in this study and we believe that these findings will be helpful to clinicians in the fight against health problems such as diabetes.
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Affiliation(s)
- Ayşe Kevser Demir
- Gaziosmanpaşa University Faculty of Medicine, Department of Internal Medicine
| | - Şafak Şahin
- Gaziosmanpaşa University Faculty of Medicine, Department of Internal Medicine
| | - Süheyla Uzun Kaya
- Gaziosmanpaşa University Faculty of Medicine, Department of Internal Medicine
| | | | | | | | - Türker Taşlıyurt
- Gaziosmanpaşa University Faculty of Medicine, Department of Internal Medicine
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91
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Zhang IY, Zhou H, Liu H, Zhang L, Gao H, Liu S, Song Y, Alizadeh D, Yin HH, Pillai R, Badie B. Local and Systemic Immune Dysregulation Alters Glioma Growth in Hyperglycemic Mice. Clin Cancer Res 2020; 26:2740-2753. [PMID: 32019861 DOI: 10.1158/1078-0432.ccr-19-2520] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 01/08/2020] [Accepted: 01/31/2020] [Indexed: 12/20/2022]
Abstract
PURPOSE Unlike most cancers, no clear epidemiological correlation between diabetes (Db) and malignant glioma progression exists. Because hyperglycemia activates proinflammatory pathways through the receptor for advanced glycation endproducts (RAGE), we hypothesized that Db can also promote malignant glioma progression. EXPERIMENTAL DESIGN We compared the growth of two phenotypically diverse syngeneic glioma models in control and diabetic mice. Tumor growth and antitumor immune responses were evaluated in orthotopic and heterotopic models and correlated to RAGE and RAGE ligand expression. RESULTS Irrespective of tumor implantation site, growth of a "classical" glioma model, GL261, increased in hyperglycemic mice and was mediated by upregulation of RAGE and its ligand, HMGB1. However, growth of a "mesenchymal" glioma subtype, K-Luc, depended on tumor implantation site. Whereas heterotopic K-Luc tumors progressed rapidly in Db mice, intracranial K-Luc tumors grew slower. We further showed that hyperglycemia inhibited the innate antitumor inflammatory responses in both models. Although this contributed to the accelerated growth of heterotopic tumors, suppression of tumor inflammatory responses dampened the growth of orthotopic K-Luc gliomas. CONCLUSIONS Hyperglycemia may enhance glioma growth through promotion of RAGE expression and suppression of antitumor immune responses. However, abrogation of the proinflammatory milieu in tumors may also dampen the growth of inflammatory glioma subtypes in the brains of diabetic mice. This dichotomy in glioma growth response to hyperglycemia may partly explain why conflicting epidemiological studies show both an increased risk and a protective effect of Db in patients with malignant gliomas.
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Affiliation(s)
- Ian Y Zhang
- Division of Neurosurgery, City of Hope Beckman Research Institute, Duarte, California
| | - Hui Zhou
- College of Pharmaceutical Science, Zhejiang University, Hangzhou, P.R. China
| | - Huili Liu
- Division of Neurosurgery, City of Hope Beckman Research Institute, Duarte, California
| | - Leying Zhang
- Division of Neurosurgery, City of Hope Beckman Research Institute, Duarte, California
| | - Hang Gao
- Department of Bone and Joint Surgery, No. 1 Hospital of Jilin University, Changchun, Jilin Province, P.R. China
| | - Shunan Liu
- Department of Pharmacology, The Pharmacy School of Jilin University, Changchun, Jilin Province, P.R. China
| | - Yanyan Song
- Department of Nephrology, The Second Hospital of Jilin University, Changchun, Jilin Province, P.R. China
| | - Darya Alizadeh
- Division of Neurosurgery, City of Hope Beckman Research Institute, Duarte, California
| | - Hongwei Holly Yin
- Department of Pathology, City of Hope Beckman Research Institute, Duarte, California
| | - Raju Pillai
- Department of Pathology, City of Hope Beckman Research Institute, Duarte, California
| | - Behnam Badie
- Division of Neurosurgery, City of Hope Beckman Research Institute, Duarte, California. .,Department of Cancer Immunotherapeutics and Tumor Immunology, City of Hope Beckman Research Institute, Duarte, California
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92
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Overlapping mechanisms linking insulin resistance with cognition and neuroprogression in bipolar disorder. Neurosci Biobehav Rev 2020; 111:125-134. [PMID: 31978440 DOI: 10.1016/j.neubiorev.2020.01.022] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Revised: 01/17/2020] [Accepted: 01/20/2020] [Indexed: 12/26/2022]
Abstract
Cognitive impairment is highly prevalent in the progression of both diabetes mellitus and bipolar disorder. The relationship between insulin resistance in diabetes and the risk of developing major neurocognitive disorders such as Alzheimer's disease has been well described. Insulin resistance and the associated metabolic deficiencies lead to biochemical alteration which hasten neurodegeneration and subsequent cognitive impairment. For bipolar disorder, some patients experience a cyclical, yet progressive course of illness. These patients are also more likely to have medical comorbidities such as cardiovascular disease and diabetes, and insulin resistance in particular may precede the neuroprogressive course. Diabetes and bipolar disorder share epidemiological, biochemical, and structural signatures, as well as cognitive impairment within similar domains, suggesting a common mechanism between the two conditions. Here we describe the association between insulin resistance and cognitive changes in bipolar disorder, as well as potential implications for therapeutic modulation of neuroprogression.
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93
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Chabrun F, Huetz N, Dieu X, Rousseau G, Bouzillé G, Chao de la Barca JM, Procaccio V, Lenaers G, Blanchet O, Legendre G, Mirebeau-Prunier D, Cuggia M, Guardiola P, Reynier P, Gascoin G. Data-Mining Approach on Transcriptomics and Methylomics Placental Analysis Highlights Genes in Fetal Growth Restriction. Front Genet 2020; 10:1292. [PMID: 31998361 PMCID: PMC6962302 DOI: 10.3389/fgene.2019.01292] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2019] [Accepted: 11/25/2019] [Indexed: 11/13/2022] Open
Abstract
Intrauterine Growth Restriction (IUGR) affects 8% of newborns and increases morbidity and mortality for the offspring even during later stages of life. Single omics studies have evidenced epigenetic, genetic, and metabolic alterations in IUGR, but pathogenic mechanisms as a whole are not being fully understood. An in-depth strategy combining methylomics and transcriptomics analyses was performed on 36 placenta samples in a case-control study. Data-mining algorithms were used to combine the analysis of more than 1,200 genes found to be significantly expressed and/or methylated. We used an automated text-mining approach, using the bulk textual gene annotations of the discriminant genes. Machine learning models were then used to explore the phenotypic subgroups (premature birth, birth weight, and head circumference) associated with IUGR. Gene annotation clustering highlighted the alteration of cell signaling and proliferation, cytoskeleton and cellular structures, oxidative stress, protein turnover, muscle development, energy, and lipid metabolism with insulin resistance. Machine learning models showed a high capacity for predicting the sub-phenotypes associated with IUGR, allowing a better description of the IUGR pathophysiology as well as key genes involved.
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Affiliation(s)
- Floris Chabrun
- Département de Biochimie et Génétique, Centre Hospitalier Universitaire, Angers, France.,Unité Mixte de Recherche (UMR) MITOVASC, Équipe Mitolab, Centre National de la Recherche Scientifique (CNRS) 6015, Institut National de la Santé et de la Recherche Médicale (INSERM) U1083, Université d'Angers, Angers, France
| | - Noémie Huetz
- Unité Mixte de Recherche (UMR) MITOVASC, Équipe Mitolab, Centre National de la Recherche Scientifique (CNRS) 6015, Institut National de la Santé et de la Recherche Médicale (INSERM) U1083, Université d'Angers, Angers, France.,Réanimation et Médecine Néonatales, Centre Hospitalier Universitaire, Angers, France
| | - Xavier Dieu
- Département de Biochimie et Génétique, Centre Hospitalier Universitaire, Angers, France.,Unité Mixte de Recherche (UMR) MITOVASC, Équipe Mitolab, Centre National de la Recherche Scientifique (CNRS) 6015, Institut National de la Santé et de la Recherche Médicale (INSERM) U1083, Université d'Angers, Angers, France
| | - Guillaume Rousseau
- Département de Biochimie et Génétique, Centre Hospitalier Universitaire, Angers, France.,Unité Mixte de Recherche (UMR) MITOVASC, Équipe Mitolab, Centre National de la Recherche Scientifique (CNRS) 6015, Institut National de la Santé et de la Recherche Médicale (INSERM) U1083, Université d'Angers, Angers, France
| | - Guillaume Bouzillé
- Laboratoire du Traitement de l'Image et du Signal, INSERM, UMR 1099, Université Rennes 1, Rennes, France.,Département d'Information médicale et dossiers médicaux, Centre Hospitalier Universitaire, Rennes, France
| | - Juan Manuel Chao de la Barca
- Département de Biochimie et Génétique, Centre Hospitalier Universitaire, Angers, France.,Unité Mixte de Recherche (UMR) MITOVASC, Équipe Mitolab, Centre National de la Recherche Scientifique (CNRS) 6015, Institut National de la Santé et de la Recherche Médicale (INSERM) U1083, Université d'Angers, Angers, France
| | - Vincent Procaccio
- Département de Biochimie et Génétique, Centre Hospitalier Universitaire, Angers, France.,Unité Mixte de Recherche (UMR) MITOVASC, Équipe Mitolab, Centre National de la Recherche Scientifique (CNRS) 6015, Institut National de la Santé et de la Recherche Médicale (INSERM) U1083, Université d'Angers, Angers, France
| | - Guy Lenaers
- Département de Biochimie et Génétique, Centre Hospitalier Universitaire, Angers, France.,Unité Mixte de Recherche (UMR) MITOVASC, Équipe Mitolab, Centre National de la Recherche Scientifique (CNRS) 6015, Institut National de la Santé et de la Recherche Médicale (INSERM) U1083, Université d'Angers, Angers, France
| | - Odile Blanchet
- Centre de Ressources Biologiques, Centre Hospitalier Universitaire, Angers, France
| | - Guillaume Legendre
- Département de Gynécologie Obstétrique, Centre Hospitalier Universitaire, Angers, France
| | - Delphine Mirebeau-Prunier
- Département de Biochimie et Génétique, Centre Hospitalier Universitaire, Angers, France.,Unité Mixte de Recherche (UMR) MITOVASC, Équipe Mitolab, Centre National de la Recherche Scientifique (CNRS) 6015, Institut National de la Santé et de la Recherche Médicale (INSERM) U1083, Université d'Angers, Angers, France
| | - Marc Cuggia
- Laboratoire du Traitement de l'Image et du Signal, INSERM, UMR 1099, Université Rennes 1, Rennes, France.,Département d'Information médicale et dossiers médicaux, Centre Hospitalier Universitaire, Rennes, France
| | - Philippe Guardiola
- Service de Génomique Onco-Hématologique, Centre Hospitalier Universitaire, Angers, France
| | - Pascal Reynier
- Département de Biochimie et Génétique, Centre Hospitalier Universitaire, Angers, France.,Unité Mixte de Recherche (UMR) MITOVASC, Équipe Mitolab, Centre National de la Recherche Scientifique (CNRS) 6015, Institut National de la Santé et de la Recherche Médicale (INSERM) U1083, Université d'Angers, Angers, France
| | - Geraldine Gascoin
- Unité Mixte de Recherche (UMR) MITOVASC, Équipe Mitolab, Centre National de la Recherche Scientifique (CNRS) 6015, Institut National de la Santé et de la Recherche Médicale (INSERM) U1083, Université d'Angers, Angers, France.,Réanimation et Médecine Néonatales, Centre Hospitalier Universitaire, Angers, France
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94
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Davids SFG, Matsha TE, Peer N, Erasmus RT, Kengne AP. The 7-Year Change in the Prevalence of Insulin Resistance, Inflammatory Biomarkers, and Their Determinants in an Urban South African Population. J Diabetes Res 2020; 2020:3781214. [PMID: 32566678 PMCID: PMC7261324 DOI: 10.1155/2020/3781214] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 04/29/2020] [Accepted: 05/12/2020] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Insulin resistance (IR) and subclinical inflammation are involved in pathological pathways leading to the development of biological cardiovascular risk factors and subsequent cardiovascular events. Therefore, monitoring these processes can provide advanced information on the trajectory of cardiovascular risk profile of a population and inform prevention and control strategies. We investigated changes in IR and subclinical inflammation in a population from Cape Town, South Africa, between 2008/09 and 2014/16. METHODS In a total of 2503 (n = 797, 2008/09) and (n = 1706, 2014/16) participants, IR was calculated using five indices, i.e., insulin fasting, HOMA-IR, QUICKI, McAuley, and Matsuda while subclinical inflammation was measured using usCRP and gamma GT. Linear and logistic regression analyses and interaction tests were conducted. RESULTS The mean age of participants was 53.2 (2008/09) and 48.2 (2014/16), respectively. In females, IR prevalence significantly decreased between 2008/09 and 2014/2016 by all indices (p ≤ 0.021), while subclinical inflammation prevalence increased from 54.7% (2008/09) to 57.1% (2014/16) based on usCRP and 29.6% to 33.4% based on gamma GT. In a multivariate analysis adjusted for the year of study, age, and gender, prominent factors associated with increased IR or subclinical inflammation were obesity levels measured using waist circumference, glycated haemoglobin, and fasting insulin levels. CONCLUSIONS Over the 7-year period, subclinical inflammation increased and this was associated with IR and the metabolic syndrome components, both of which are strong predictors of CVDs. The decrease in IR over the year period reflects in part the much younger age in the second survey.
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Affiliation(s)
- Saarah Fatoma Gadija Davids
- Department of Medicine, University of Cape Town, Cape Town, South Africa
- SAMRC/CPUT Cardiometabolic Health Research Unit, Department of Biomedical Sciences, Cape Peninsula University of Technology, Cape Town, South Africa
| | - Tandi Edith Matsha
- SAMRC/CPUT Cardiometabolic Health Research Unit, Department of Biomedical Sciences, Cape Peninsula University of Technology, Cape Town, South Africa
| | - Nasheeta Peer
- Department of Medicine, University of Cape Town, Cape Town, South Africa
- Non-Communicable Diseases Research Unit, South African Medical Research Council, Cape Town, South Africa
| | - Rajiv Timothy Erasmus
- Department of Chemical Pathology, National Health Laboratory Service (NHLS) and Stellenbosch University, Cape Town, South Africa
| | - Andre Pascal Kengne
- Department of Medicine, University of Cape Town, Cape Town, South Africa
- Non-Communicable Diseases Research Unit, South African Medical Research Council, Cape Town, South Africa
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95
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Żebrowska A, Sikora M, Konarska A, Zwierzchowska A, Kamiński T, Robins A, Hall B. Moderate intensity exercise in hypoxia increases IGF-1 bioavailability and serum irisin in individuals with type 1 diabetes. Ther Adv Endocrinol Metab 2020; 11:2042018820925326. [PMID: 32523674 PMCID: PMC7257872 DOI: 10.1177/2042018820925326] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Accepted: 04/21/2020] [Indexed: 12/26/2022] Open
Abstract
AIM This study aimed to determine the effect of moderate intensity continuous exercise (Ex) and hypoxia (Hyp) on serum brain-derived neurotrophic factor (BDNF), insulin-like growth factor-1 (IGF-1) and its binding protein-3 (IGFBP-3), irisin and cytokines levels in patients with type 1 diabetes (T1D). METHODS A total of 14 individuals with T1D (age: 28.7 ± 7.3 years) and 14 healthy adults (age: 27.1 ± 3.9 years) performed 40-min continuous Ex at moderate intensity (50% lactate threshold) on a cycle ergometer in normoxia (Nor) and Hyp (FiO2 = 15.1%) Biochemical factors, glucose concentrations and physiological variables were measured at rest, immediately and up to 24 h after both Ex protocols. RESULTS Patients with T1D had significantly lower pre-Ex serum concentrations of BDNF (p < 0.05, p < 0.01), and total IGF-1 (p < 0.001, p < 0.05) and significantly higher irisin levels (p < 0.05, p < 0.01) in Nor and Hyp, compared with healthy subjects. Ex significantly increased in T1D group serum BDNF (in Nor only p < 0.05) and total IGF-1 levels in Nor and Hyp (p < 0.001 and p < 0.01, respectively). Immediately after Ex in Hyp, freeIGF-1 (p < 0.05) and irisin levels (p < 0.001) were significantly higher compared with the levels induced by Ex alone. Free IGF-1 and irisin serum levels remained elevated in 24 h post-Ex in Hyp. In T1D, significant blood glucose (BG) decrease was observed immediately after Ex in Hyp (p < 0.001) and in 24 h recovery (p < 0.001) compared with pre-Ex level. CONCLUSION The study results suggest that moderate intensity continuous Ex has beneficial effect on BDNF and IGF-1 levels. Ex in hypoxic conditions may be more effective in increasing availability of IGF-1. The alterations in the post-Ex irisin levels and IGF-1 system may be contributing to more effective glycaemia control in patients with T1D.
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Affiliation(s)
| | - Marcin Sikora
- Department of Physiological and Medical Sciences, The Jerzy Kukuczka Academy of Physical Education, Katowice, Poland
| | - Anna Konarska
- Department of Physiological and Medical Sciences, The Jerzy Kukuczka Academy of Physical Education, Katowice, Poland
| | | | - Tomasz Kamiński
- Department of Physiological and Medical Sciences, The Jerzy Kukuczka Academy of Physical Education, Katowice, Poland
| | - Anna Robins
- School of Biological Sciences, Division of Infection, Immunity and Respiratory Medicine, University of Salford, Salford, UK
| | - Barbara Hall
- School of Health Sciences, University of Salford, Salford, UK
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96
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Msollo SS, Martin HD, Mwanri AW, Petrucka P. Insulin Resistance Among Pregnant Women in Urban Areas of Arusha Region, Tanzania. Metab Syndr Relat Disord 2019; 17:512-517. [DOI: 10.1089/met.2019.0077] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Affiliation(s)
- Safiness Simon Msollo
- School of Life Sciences, Nelson Mandela African Institution of Science and Technology, Arusha, Tanzania
- Department of Food Technology, Nutrition and Consumer Sciences, Sokoine University of Agriculture, Morogoro, Tanzania
| | - Haikael David Martin
- School of Life Sciences, Nelson Mandela African Institution of Science and Technology, Arusha, Tanzania
| | - Akwilina Wendelin Mwanri
- Department of Food Technology, Nutrition and Consumer Sciences, Sokoine University of Agriculture, Morogoro, Tanzania
| | - Pammla Petrucka
- College of Nursing, University of Saskatchewan, Saskatoon, Canada
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97
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Tanaka K, Nakabayashi K, Kawai T, Tanigaki S, Matsumoto K, Hata K, Kobayashi Y. Gene expression and DNA methylation changes in BeWo cells dependent on tumor necrosis factor-α and insulin-like growth factor-I. Hum Cell 2019; 33:37-46. [PMID: 31724103 DOI: 10.1007/s13577-019-00299-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Accepted: 10/23/2019] [Indexed: 01/12/2023]
Abstract
Pregnant women with increased insulin resistance, characterized by elevated levels of tumor necrosis factor-alpha (TNF-α) and insulin-like growth factor-I (IGF-I), are at high risk of preeclampsia. We hypothesized that TNF-α and IGF-I affect the placentas and cause pathological changes leading to preeclampsia. To understand the genetic and epigenetic effects of TNF-α and IGF-I on trophoblast cells, gene expression microarray and DNA methylation array of BeWo cells stimulated by TNF-α (100 pg/ml, 100 ng/ml) and IGF-I (100 ng/ml) were conducted. Microarray analysis revealed the differential gene expression patterns in BeWo cells co-stimulated by TNF-α and IGF-I. Enrichment analysis identified the terms associated with NF-kappa B signaling pathways and arachidonic acid cascades such as PTGS2 and PTGER2. DNA methylation array revealed the distinct CpG methylation pattern in BeWo cells stimulated by high-TNF-α and IGF-I, while neither of them showed independent effects. Enrichment analysis identified the terms associated with major histocompatibility complex proteins. Integration of transcriptome and DNA methylome analyses identified three differentially expressed genes with significant DNA methylation change: C3, GP1BA, and NFKBIE, which are all possibly associated with pathogenesis of preeclampsia. In conclusion, co-stimulation of TNF-α and IGF-I induced the genetic and epigenetic changes associated with preeclampsia in BeWo cells. The results suggested that BeWo cells stimulated by TNF-α and IGF-I is a good in vitro model of preeclamptic placenta in pregnancy with increased insulin resistance.
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Affiliation(s)
- Kei Tanaka
- Department of Obstetrics and Gynecology, Kyorin University School of Medicine, 6-20-2 Shinkawa, Mitaka, Tokyo, 181-8611, Japan.
| | - Kazuhiko Nakabayashi
- Department of Maternal-Fetal Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo, 157-8535, Japan
| | - Tomoko Kawai
- Department of Maternal-Fetal Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo, 157-8535, Japan
| | - Shinji Tanigaki
- Department of Obstetrics and Gynecology, Kyorin University School of Medicine, 6-20-2 Shinkawa, Mitaka, Tokyo, 181-8611, Japan
| | - Kenji Matsumoto
- Department of Allergy and Clinical Immunology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo, 157-8535, Japan
| | - Kenichiro Hata
- Department of Maternal-Fetal Biology, National Research Institute for Child Health and Development, 2-10-1 Okura, Setagaya, Tokyo, 157-8535, Japan
| | - Yoichi Kobayashi
- Department of Obstetrics and Gynecology, Kyorin University School of Medicine, 6-20-2 Shinkawa, Mitaka, Tokyo, 181-8611, Japan
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98
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Pouriamehr S, Barmaki H, Rastegary M, Lotfi F, Nabi Afjadi M. Investigation of insulin-like growth factors/insulin-like growth factor binding proteins regulation in metabolic syndrome patients. BMC Res Notes 2019; 12:653. [PMID: 31601230 PMCID: PMC6788073 DOI: 10.1186/s13104-019-4492-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Accepted: 07/17/2019] [Indexed: 12/23/2022] Open
Abstract
OBJECTIVE The insulin-like growth factors (IGFs) and their binding proteins (IGFBPs) are thought to play a significant role in metabolic pathways and glucose metabolism. Unregulated levels of IGFs/IGFBPs have been associated with the development of glucose intolerance and metabolic syndrome X (MSx). We hypothesized that change of IGFs/IGFBPs levels could increase the risk of MSx; thus, this study aimed to evaluate the serostatus of IGFs/IGFBPs in individuals with MSx. RESULTS After adjustment for metabolic parameters, MSx patients had a lower level of IGF-1, IGFBP-1, and IGFBP-2 compared with subjects in the control group. Further analysis revealed a positive correlation between serum levels of IGF-1 and IGF-2 (p < 0.05), as well as serum IGFBP-3 and IGF-2 (p < 0.05). Also, the statistical analysis showed a negative association of serum IGF-1 with plasma glucose and total cholesterol levels (p < 0.05). Besides, a negative relationship was found between serum concentrations of IGF-1/IGF-2 and the risk of developing MSx. These data indicated that some components of IGFs/IGFBPs are linked with the pathogenesis of MSx. In conclusion, these inverse associations showed a possible linkage between the IGF/IGFBP signaling pathway and the development of MSx. It seems the decreased concentrations of IGFs edmay be regarded as a potential biomarker for early diagnosis or even prognosis of MSx but need more systematic studies to confirmed it.
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Affiliation(s)
- Somayeh Pouriamehr
- Department of Biology, Dezful Branch, Islamic Azad University, Dezful, Iran
| | - Haleh Barmaki
- Department of Laboratory Medicine, Faculty of Para Medical Sciences, Shahid Behest University of Medical Sciences, Tehran, Iran
| | - Mozhdeh Rastegary
- Department of Biology, Basic Science Faculty, Shahrekord Branch, Islamic Azad University, Shahrekord, Iran
| | - Farzaneh Lotfi
- Department of Clinical Biochemistry, Faculty of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran.
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99
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Furlano JA, Nagamatsu LS. Feasibility of a 6-month pilot randomised controlled trial of resistance training on cognition and brain health in Canadian older adults at-risk for diabetes: study protocol. BMJ Open 2019; 9:e032047. [PMID: 31585978 PMCID: PMC6797349 DOI: 10.1136/bmjopen-2019-032047] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
INTRODUCTION Type 2 diabetes (T2D) is associated with cognitive deficits and increased risk of dementia, and thus individuals at high risk for T2D (ie, those who are overweight or prediabetic) are also at greater risk for cognitive decline. Aerobic exercise is known to preserve and improve cognitive function, but the effects of resistance training (RT) are much less known in older adults. Moreover, research on the effects of RT on cognition and brain health (structure and function) in older adults at-risk for diabetes is limited. To address this question, a 6-month RT intervention is needed. Importantly, before conducting a full-scale randomised controlled trial (RCT), we are conducting a feasibility pilot study to assess potential recruitment rates, adherence and retention in this specific population. METHODS AND ANALYSIS We are conducting a 6-month, thrice-weekly RT RCT. Participants (aged 60-80; sedentary; fasting plasma glucose of 6.1-7.0 mmol/L or body mass index ≥25) are randomised into one of two groups: (1) RT or (2) balance and tone (control). Based on other exercise trials using a similar population, we will consider our trial feasible if we have adherence and retention at 70%. Recruitment rate will be measured as time it takes to enrol 20 participants. To assess behavioural and MRI data, we will report descriptive statistics and estimation using a 95% CI. ETHICS AND DISSEMINATION Our study has received ethics approval from the Health Sciences Research Ethics Board at Western University. As this is a small pilot study, data will only be made available to other researchers on request. Results from this study will be disseminated via academic publication. TRIAL REGISTRATION NUMBER NCT03254381.
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Joksić G, Tričković JF, Joksić I. Potential of Gentiana lutea for the Treatment of Obesity-associated Diseases. Curr Pharm Des 2019; 25:2071-2076. [PMID: 31538881 DOI: 10.2174/1381612825666190708215743] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Accepted: 06/24/2019] [Indexed: 12/25/2022]
Abstract
BACKGROUND Obesity, diabetes, and associated diseases are increasing all over the world, and pose a great burden on public health. According to the latest reports, 440 million people are suffering from diabetes. Diabetes is caused by impaired ability to produce or respond to the hormone insulin consequently resulting in hyperglycemia. METHODS Data used for this review was obtained by using PUBMED/MEDLINE (1987-2018). The main data search terms were: Gentiana lutea, Gentiana lutea extract, Gentiana lutea constituents, obesity, diabetes mellitus, diabetic complications. RESULTS In the present review, we describe the potential of root powder of yellow gentian (Gentiana lutea) for the prevention of obesity and diabetes including complications related to this disease. CONCLUSION Reasonably effective, low-cost alternatives could fulfill an important role for a large part of the human population and could be of great value for the food market. Even a modest reduction of morbidity and mortality with respect to this disease translates into millions of lives saved.
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Affiliation(s)
- Gordana Joksić
- Vinca Institute of Nuclear Science, University of Belgrade, M.Petrovica Alasa 12-14, 11000 Belgrade, Serbia
| | - Jelena Filipović Tričković
- Vinca Institute of Nuclear Science, University of Belgrade, M.Petrovica Alasa 12-14, 11000 Belgrade, Serbia
| | - Ivana Joksić
- Vinca Institute of Nuclear Science, University of Belgrade, M.Petrovica Alasa 12-14, 11000 Belgrade, Serbia.,Clinic for Gynecology and Obstetrics Narodni Front, Kraljice Natalije 62, 11000, Belgrade, Serbia
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