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Jensen LJ. Functional, Structural and Proteomic Effects of Ageing in Resistance Arteries. Int J Mol Sci 2024; 25:2601. [PMID: 38473847 DOI: 10.3390/ijms25052601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 02/18/2024] [Accepted: 02/20/2024] [Indexed: 03/14/2024] Open
Abstract
The normal ageing process affects resistance arteries, leading to various functional and structural changes. Systolic hypertension is a common occurrence in human ageing, and it is associated with large artery stiffening, heightened pulsatility, small artery remodeling, and damage to critical microvascular structures. Starting from young adulthood, a progressive elevation in the mean arterial pressure is evidenced by clinical and epidemiological data as well as findings from animal models. The myogenic response, a protective mechanism for the microcirculation, may face disruptions during ageing. The dysregulation of calcium entry channels (L-type, T-type, and TRP channels), dysfunction in intracellular calcium storage and extrusion mechanisms, altered expression of potassium channels, and a change in smooth muscle calcium sensitization may contribute to the age-related dysregulation of myogenic tone. Flow-mediated vasodilation, a hallmark of endothelial function, is compromised in ageing. This endothelial dysfunction is related to increased oxidative stress, lower nitric oxide bioavailability, and a low-grade inflammatory response, further exacerbating vascular dysfunction. Resistance artery remodeling in ageing emerges as a hypertrophic response of the vessel wall that is typically observed in conjunction with outward remodeling (in normotension), or as inward hypertrophic remodeling (in hypertension). The remodeling process involves oxidative stress, inflammation, reorganization of actin cytoskeletal components, and extracellular matrix fiber proteins. Reactive oxygen species (ROS) signaling and chronic low-grade inflammation play substantial roles in age-related vascular dysfunction. Due to its role in the regulation of vascular tone and structural proteins, the RhoA/Rho-kinase pathway is an important target in age-related vascular dysfunction and diseases. Understanding the intricate interplay of these factors is crucial for developing targeted interventions to mitigate the consequences of ageing on resistance arteries and enhance the overall vascular health.
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Affiliation(s)
- Lars Jørn Jensen
- Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, DK-1870 Frederiksberg C, Denmark
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2
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Martínez-Gascón LE, Ortiz MC, Galindo M, Sanchez JM, Sancho-Rodríguez N, Albaladejo-Otón MD, Rodríguez Mulero MD, Rodriguez F. Role of heme oxygenase in the regulation of the renal hemodynamics in a model of sex-dependent programmed hypertension by maternal diabetes. Am J Physiol Regul Integr Comp Physiol 2022; 322:R181-R191. [PMID: 34984919 DOI: 10.1152/ajpregu.00213.2021] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 12/14/2021] [Indexed: 12/11/2022]
Abstract
Intrauterine programming of cardiovascular and renal function occurs in diabetes because of the adverse maternal environment. Heme oxygenase 1 (HO-1) and -2 (HO-2) exert vasodilatory and antioxidant actions, particularly in conditions of elevated HO-1 expression or deficient nitric oxide levels. We evaluated whether the activity of the heme-HO system is differentially regulated by oxidative stress in the female offspring of diabetic mothers, contributing to the improved cardiovascular function in comparison with males. Diabetes was induced in pregnant rats by a single dose of streptozotocin (STZ, 50 mg/kg ip) in late gestation. Three-month-old male offspring from diabetic mothers (MODs) exhibited higher blood pressure (BP), higher renal vascular resistance (RVR), worse endothelium-dependent response to acetylcholine (ACH), and an increased constrictor response to phenylephrine (PHE) compared with those in age-matched female offspring of diabetic mothers (FODs), which were abolished by chronic tempol (1 mM) treatment. In anesthetized animals, stannous mesoporphyrin (SnMP; 40 µmol/kg iv) administration, to inhibit HO activity, increased RVR in FODs and reduced glomerular filtration rate (GFR) in MODs, without altering these parameters in control animals. When compared with MODs, FODs showed lower nitrotirosyne levels and higher HO-1 protein expression in renal homogenates. Indeed, chronic treatment with tempol in MODs prevented elevations in nitrotyrosine levels and the acute renal hemodynamics response to SnMP. Then, maternal diabetes results in sex-specific hypertension and renal alterations associated with oxidative stress mainly in adult male offspring, which are reduced in the female offspring by elevation in HO-1 expression and lower oxidative stress levels.
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Affiliation(s)
- Lidia E Martínez-Gascón
- Servicio de Análisis Clínicos, Hospital General Universitario Santa Lucía, Cartagena, Murcia, Spain
- Instituto Murciano de Investigaciòn Biomédica, IMIB, Murcia, Spain
| | - María Clara Ortiz
- Departamento de Fisiología, Campus de Excelencia Internacional Regional "Campus Mare Nostrum", Universidad de Murcia, Murcia, Spain
- Instituto Murciano de Investigaciòn Biomédica, IMIB, Murcia, Spain
| | - María Galindo
- Servicio de Medicina Intensiva, Hospital General Universitario Santa Lucía, Cartagena, Murcia, Spain
- Instituto Murciano de Investigaciòn Biomédica, IMIB, Murcia, Spain
| | | | | | - María Dolores Albaladejo-Otón
- Servicio de Análisis Clínicos, Hospital General Universitario Santa Lucía, Cartagena, Murcia, Spain
- Instituto Murciano de Investigaciòn Biomédica, IMIB, Murcia, Spain
| | - María Dolores Rodríguez Mulero
- Servicio de Medicina Intensiva, Hospital General Universitario Santa Lucía, Cartagena, Murcia, Spain
- Instituto Murciano de Investigaciòn Biomédica, IMIB, Murcia, Spain
| | - Francisca Rodriguez
- Departamento de Fisiología, Campus de Excelencia Internacional Regional "Campus Mare Nostrum", Universidad de Murcia, Murcia, Spain
- Instituto Murciano de Investigaciòn Biomédica, IMIB, Murcia, Spain
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3
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Schütte T, Kedziora SM, Haase N, Herse F, Alenina N, Müller DN, Bader M, Schupp M, Dechend R, Golic M, Kräker K. Diabetic pregnancy as a novel risk factor for cardiac dysfunction in the offspring-the heart as a target for fetal programming in rats. Diabetologia 2021; 64:2829-2842. [PMID: 34537857 PMCID: PMC8563640 DOI: 10.1007/s00125-021-05566-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Accepted: 05/28/2021] [Indexed: 11/02/2022]
Abstract
AIMS/HYPOTHESIS The impact of diabetic pregnancy has been investigated extensively regarding offspring metabolism; however, little is known about the influence on the heart. We aimed to characterise the effects of a diabetic pregnancy on male adult offspring cardiac health after feeding a high-fat diet in an established transgenic rat model. METHODS We applied our rat model for maternal type 2 diabetes characterised by maternal insulin resistance with hyperglycaemia and hyperinsulinaemia. Diabetes was induced preconceptionally via doxycycline-induced knock down of the insulin receptor in transgenic rats. Male wild-type offspring of diabetic and normoglycaemic pregnancies were raised by foster mothers, followed up into adulthood and subgroups were challenged by a high-fat diet. Cardiac phenotype was assessed by innovative speckle tracking echocardiography, circulating factors, immunohistochemistry and gene expression in the heart. RESULTS When feeding normal chow, we did not observe differences in cardiac function, gene expression and plasma brain natriuretic peptide between adult diabetic or normoglycaemic offspring. Interestingly, when being fed a high-fat diet, adult offspring of diabetic pregnancy demonstrated decreased global longitudinal (-14.82 ± 0.59 vs -16.60 ± 0.48%) and circumferential strain (-23.40 ± 0.57 vs -26.74 ± 0.34%), increased relative wall thickness (0.53 ± 0.06 vs 0.37 ± 0.02), altered cardiac gene expression, enlarged cardiomyocytes (106.60 ± 4.14 vs 87.94 ± 1.67 μm), an accumulation of immune cells in the heart (10.27 ± 0.30 vs 6.48 ± 0.48 per fov) and higher plasma brain natriuretic peptide levels (0.50 ± 0.12 vs 0.12 ± 0.03 ng/ml) compared with normoglycaemic offspring on a high-fat diet. Blood pressure, urinary albumin, blood glucose and body weight were unaltered between groups on a high-fat diet. CONCLUSIONS/INTERPRETATION Diabetic pregnancy in rats induces cardiac dysfunction, left ventricular hypertrophy and altered proinflammatory status in adult offspring only after a high-fat diet. A diabetic pregnancy itself was not sufficient to impair myocardial function and gene expression in male offspring later in life. This suggests that a postnatal high-fat diet is important for the development of cardiac dysfunction in rat offspring after diabetic pregnancy. Our data provide evidence that a diabetic pregnancy is a novel cardiac risk factor that becomes relevant when other challenges, such as a high-fat diet, are present.
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Affiliation(s)
- Till Schütte
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Institute of Pharmacology, Berlin, Germany
- Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Berlin, Germany
- DZHK (German Center for Cardiovascular Research), Partner Site Berlin, Berlin, Germany
| | - Sarah M Kedziora
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
- Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Berlin, Germany
- DZHK (German Center for Cardiovascular Research), Partner Site Berlin, Berlin, Germany
- Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Berlin, Germany
- Experimental and Clinical Research Center - a joint cooperation between the Max Delbrück Center for Molecular Medicine and the Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Nadine Haase
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
- Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Berlin, Germany
- DZHK (German Center for Cardiovascular Research), Partner Site Berlin, Berlin, Germany
- Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Berlin, Germany
- Experimental and Clinical Research Center - a joint cooperation between the Max Delbrück Center for Molecular Medicine and the Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Florian Herse
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
- Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Berlin, Germany
- Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Berlin, Germany
- Experimental and Clinical Research Center - a joint cooperation between the Max Delbrück Center for Molecular Medicine and the Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Natalia Alenina
- Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Berlin, Germany
- DZHK (German Center for Cardiovascular Research), Partner Site Berlin, Berlin, Germany
- Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Berlin, Germany
| | - Dominik N Müller
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
- Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Berlin, Germany
- DZHK (German Center for Cardiovascular Research), Partner Site Berlin, Berlin, Germany
- Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Berlin, Germany
- Experimental and Clinical Research Center - a joint cooperation between the Max Delbrück Center for Molecular Medicine and the Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Michael Bader
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
- Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Berlin, Germany
- DZHK (German Center for Cardiovascular Research), Partner Site Berlin, Berlin, Germany
- Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Berlin, Germany
- Institute for Biology, University of Lübeck, Lübeck, Germany
| | - Michael Schupp
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Institute of Pharmacology, Berlin, Germany
- Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Ralf Dechend
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
- Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Berlin, Germany
- DZHK (German Center for Cardiovascular Research), Partner Site Berlin, Berlin, Germany
- Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Berlin, Germany
- Experimental and Clinical Research Center - a joint cooperation between the Max Delbrück Center for Molecular Medicine and the Charité - Universitätsmedizin Berlin, Berlin, Germany
- HELIOS-Klinikum, Department of Cardiology and Nephrology, Berlin, Germany
| | - Michaela Golic
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
- Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Berlin, Germany
- DZHK (German Center for Cardiovascular Research), Partner Site Berlin, Berlin, Germany
- Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Berlin, Germany
- Experimental and Clinical Research Center - a joint cooperation between the Max Delbrück Center for Molecular Medicine and the Charité - Universitätsmedizin Berlin, Berlin, Germany
- HSD Hochschule Döpfer, University of Applied Sciences, Cologne, Germany
| | - Kristin Kräker
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany.
- Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Berlin, Germany.
- DZHK (German Center for Cardiovascular Research), Partner Site Berlin, Berlin, Germany.
- Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Berlin, Germany.
- Experimental and Clinical Research Center - a joint cooperation between the Max Delbrück Center for Molecular Medicine and the Charité - Universitätsmedizin Berlin, Berlin, Germany.
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Luo H, Lan C, Fan C, Gong X, Chen C, Yu C, Wang J, Luo X, Hu C, Jose PA, Xu Z, Zeng C. Down-regulation of AMPK/PPARδ signalling promotes endoplasmic reticulum stress-induced endothelial dysfunction in adult rat offspring exposed to maternal diabetes. Cardiovasc Res 2021; 118:2304-2316. [PMID: 34415333 PMCID: PMC9890455 DOI: 10.1093/cvr/cvab280] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 01/29/2020] [Accepted: 08/18/2021] [Indexed: 02/07/2023] Open
Abstract
AIMS Exposure to maternal diabetes is associated with increased prevalence of hypertension in the offspring. The mechanisms underlying the prenatal programming of hypertension remain unclear. Because endoplasmic reticulum (ER) stress plays a key role in vascular endothelial dysfunction in hypertension, we investigated whether aberrant ER stress causes endothelial dysfunction and high blood pressure in the offspring of dams with diabetes. METHODS AND RESULTS Pregnant Sprague-Dawley rats were intraperitoneally injected with streptozotocin (35 mg/kg) or citrate buffer at Day 0 of gestation. Compared with control mother offspring (CMO), the diabetic mother offspring (DMO) had higher blood pressure and impaired endothelium-dependent relaxation in mesenteric arteries, accompanied by decreased AMPK phosphorylation and PPARδ expression, increased ER stress markers, and reactive oxygen species (ROS) levels. The inhibition of ER stress reversed these aberrant changes in DMO. Ex vivo treatment of mesenteric arteries with an AMPK agonist (A769662) or a PPARδ agonist (GW1516) improved the impaired EDR in DMO and reversed the tunicamycin-induced ER stress, ROS production, and EDR impairment in mesenteric arteries from CMO. The effects of A769662 were abolished by co-treatment with GSK0660 (PPARδ antagonist), whereas the effects of GW1516 were unaffected by Compound C (AMPK inhibitor). CONCLUSION These results suggest an abnormal foetal programming of vascular endothelial function in offspring of rats with maternal diabetes that is associated with increased ER stress, which can be ascribed to down-regulation of AMPK/PPARδ signalling cascade.
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Affiliation(s)
| | | | | | - Xue Gong
- Department of Cardiology, Daping Hospital, The Third Military Medical University, 10 Changjiang Branch Rd, Chongqing 400042, P.R. China,Chongqing Key Laboratory for Hypertension Research, Chongqing Cardiovascular Clinical Research Center, Chongqing Institute of Cardiology, Chongqing, China
| | - Caiyu Chen
- Department of Cardiology, Daping Hospital, The Third Military Medical University, 10 Changjiang Branch Rd, Chongqing 400042, P.R. China,Chongqing Key Laboratory for Hypertension Research, Chongqing Cardiovascular Clinical Research Center, Chongqing Institute of Cardiology, Chongqing, China
| | - Cheng Yu
- Chongqing Key Laboratory for Hypertension Research, Chongqing Cardiovascular Clinical Research Center, Chongqing Institute of Cardiology, Chongqing, China,Department of Cardiology, Fujian Heart Center, Provincial Institute of Coronary Disease, Fujian Medical University Union Hospital, Fuzhou, Fujian, China
| | - Jialiang Wang
- Department of Cardiology, Daping Hospital, The Third Military Medical University, 10 Changjiang Branch Rd, Chongqing 400042, P.R. China,Chongqing Key Laboratory for Hypertension Research, Chongqing Cardiovascular Clinical Research Center, Chongqing Institute of Cardiology, Chongqing, China
| | - Xiaoli Luo
- Department of Cardiology, Daping Hospital, The Third Military Medical University, 10 Changjiang Branch Rd, Chongqing 400042, P.R. China,Chongqing Key Laboratory for Hypertension Research, Chongqing Cardiovascular Clinical Research Center, Chongqing Institute of Cardiology, Chongqing, China
| | - Cuimei Hu
- Department of Cardiology, Daping Hospital, The Third Military Medical University, 10 Changjiang Branch Rd, Chongqing 400042, P.R. China,Chongqing Key Laboratory for Hypertension Research, Chongqing Cardiovascular Clinical Research Center, Chongqing Institute of Cardiology, Chongqing, China
| | - Pedro A Jose
- Division of Renal Diseases & Hypertension, Department of Medicine and Pharmacology, The George Washington University School of Medicine and Health Sciences, Washington, DC, USA,Department of Physiology, The George Washington University School of Medicine and Health Sciences, Washington, DC, USA
| | - Zaicheng Xu
- Corresponding author. Tel: +86 23 68757801; fax: +86 23 68757801, E-mail: (C.Z.); (Z.X.)
| | - Chunyu Zeng
- Corresponding author. Tel: +86 23 68757801; fax: +86 23 68757801, E-mail: (C.Z.); (Z.X.)
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5
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Martins P, Pires A, Santos JL, Sena C, Seiça R. Atherosclerotic Process in Seroreverter Children and Adolescents Exposed to Fetal Antiretroviral Therapy. Curr HIV Res 2021; 19:216-224. [PMID: 33213356 DOI: 10.2174/1570162x18999201118155026] [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: 06/01/2020] [Revised: 10/07/2020] [Accepted: 10/21/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Human immunodeficiency virus infection is a recognized risk factor for premature atherosclerosis in children and adolescents. However, the atherosclerotic process in uninfected children exposed in utero to the virus and antiretroviral therapy is less clear. OBJECTIVE To determine the potential cardiovascular risk associated to this in utero milieu exposition. MATERIAL AND METHODS A total of 115 individuals were studied (77 in the sample group and 38 in the controls). Eighteen analytical mediators involved in the atherogenic pathways (metabolic dysregulation, inflammation, and prothrombotic state) were analyzed. The carotid intima-media thickness, which is a subclinical marker of atherosclerosis, was also measured. RESULTS No significant statistical differences were identified between the sample and control groups, either in the biochemical or the echographic markers. CONCLUSION In utero exposure to the HIV virus and antiretroviral therapy in uninfected children and adolescents is not correlated to accelerated atherosclerosis.
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Affiliation(s)
- Paula Martins
- Paediatric Cardiology Service, Paediatric Hospital, Coimbra Hospital and Universitary Centre, Coimbra, Portugal
| | - António Pires
- Paediatric Cardiology Service, Paediatric Hospital, Coimbra Hospital and Universitary Centre, Coimbra, Portugal
| | - José Luis Santos
- CMUC, Department of Mathematics, Faculty of Sciences and Technology, University of Coimbra, Coimbra, Portugal
| | - Cristina Sena
- Coimbra Institute for Clinical and Biomedical Researh (iCBR) - Faculty of Medicine - University of Coimbra, Coimbra, Portugal
| | - Raquel Seiça
- Coimbra Institute for Clinical and Biomedical Researh (iCBR) - Faculty of Medicine - University of Coimbra, Coimbra, Portugal
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Yu C, Chen S, Wang X, Wu G, Zhang Y, Fu C, Hu C, Liu Z, Luo X, Wang J, Chen L. Exposure to maternal diabetes induces endothelial dysfunction and hypertension in adult male rat offspring. Microvasc Res 2021; 133:104076. [PMID: 32956647 DOI: 10.1016/j.mvr.2020.104076] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Revised: 09/15/2020] [Accepted: 09/16/2020] [Indexed: 01/10/2023]
Abstract
The adverse environment in early life can modulate adult phenotype, including blood pressure. Our previous study shows, in a rat streptozotocin (STZ)-induced maternal diabetes model, fetal exposure to maternal diabetes is characterized by established hypertension in the offspring. However, the exact mechanisms are not known. Our present study found, as compared with male control mother offspring (CMO), male diabetic mother offspring (DMO) had higher blood pressure with arterial dysfunction, i.e., decreased acetylcholine (Ach)-induced vasodilation. But there is no difference in blood pressure between female CMO and DMO. The decreased Ach-induced vasodilation was related to decreased nitric oxide (NO) production in the endothelium, not NO sensitivity in vascular smooth muscle because sodium nitroprusside (SNP)-mediated vasodilation was preserved; there was decreased NO production and lower eNOS phosphorylation in male DMO. The reactive oxygen species (ROS) level was increased in male DMO than CMO; normalized ROS levels with tempol increased NO production, normalized Ach-mediated vasodilation, and lowered blood pressure in male DMO rats. It indicates that diabetic programming hypertension is related to arterial dysfunction; normalizing ROS might be a potential strategy for the prevention of hypertension in the offspring.
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MESH Headings
- Age Factors
- Animals
- Arterial Pressure
- Blood Glucose/metabolism
- Cyclic GMP/metabolism
- Diabetes Mellitus, Experimental/blood
- Diabetes Mellitus, Experimental/complications
- Diabetes Mellitus, Experimental/physiopathology
- Diabetes, Gestational/blood
- Diabetes, Gestational/physiopathology
- Endothelium, Vascular/metabolism
- Endothelium, Vascular/physiopathology
- Female
- Hypertension/etiology
- Hypertension/metabolism
- Hypertension/physiopathology
- Male
- Mesenteric Artery, Superior/metabolism
- Mesenteric Artery, Superior/physiopathology
- Nitric Oxide/metabolism
- Oxidative Stress
- Pregnancy
- Prenatal Exposure Delayed Effects
- Rats, Sprague-Dawley
- Reactive Oxygen Species/metabolism
- Sex Factors
- Vasodilation
- Rats
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Affiliation(s)
- Cheng Yu
- Department of Cardiology, Fujian Heart Center, Provincial Institute of Coronary Disease, Fujian Medical University Union Hospital, Fuzhou, Fujian, China; Department of Cardiology, Daping Hospital, Third Military Medical University; Chongqing Institute of Cardiology, Chongqing, China
| | - Shuo Chen
- Department of Cardiology, Daping Hospital, Third Military Medical University; Chongqing Institute of Cardiology, Chongqing, China
| | - Xinquan Wang
- Department of Cardiology, Daping Hospital, Third Military Medical University; Chongqing Institute of Cardiology, Chongqing, China
| | - Gengze Wu
- Department of Cardiology, Daping Hospital, Third Military Medical University; Chongqing Institute of Cardiology, Chongqing, China
| | - Ye Zhang
- Department of Cardiology, Daping Hospital, Third Military Medical University; Chongqing Institute of Cardiology, Chongqing, China
| | - Chunjiang Fu
- Department of Cardiology, Daping Hospital, Third Military Medical University; Chongqing Institute of Cardiology, Chongqing, China
| | - Cuimei Hu
- Department of Cardiology, Daping Hospital, Third Military Medical University; Chongqing Institute of Cardiology, Chongqing, China
| | - Zhengbi Liu
- Center of Laboratory Animal, Daping Hospital, Third Military Medical University, Chongqing, China
| | - Xiaoli Luo
- Department of Cardiology, Daping Hospital, Third Military Medical University; Chongqing Institute of Cardiology, Chongqing, China
| | - Jialiang Wang
- Department of Cardiology, Daping Hospital, Third Military Medical University; Chongqing Institute of Cardiology, Chongqing, China.
| | - Lianglong Chen
- Department of Cardiology, Fujian Heart Center, Provincial Institute of Coronary Disease, Fujian Medical University Union Hospital, Fuzhou, Fujian, China.
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Maternal Diabetes Mellitus and Persistent Pulmonary Hypertension of the Newborn: Accumulated Evidence From Observational Studies. Can J Diabetes 2020; 44:327-334.e3. [PMID: 31902718 DOI: 10.1016/j.jcjd.2019.10.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Revised: 10/08/2019] [Accepted: 10/08/2019] [Indexed: 01/12/2023]
Abstract
OBJECTIVES Maternal diabetes mellitus (including pre-existing and gestational diabetes mellitus) is linked with adverse infant outcomes. However, the question of whether maternal diabetes increases the risk of persistent pulmonary hypertension of the newborn (PPHN) is unclear. Herein, we conducted a systematic review and meta-analysis to summarize clinical evidence to determine the association between maternal diabetes mellitus and PPHN. METHODS In this systematic review and meta-analysis, we systematically searched PubMed, Embase, Cochrane Library, Web of Science and Google Scholar to identify relevant studies according to predefined criteria. Data from selected studies were extracted, and meta-analysis was performed using fixed effects modelling. RESULTS In all, we included 7 unique studies with aggregated data on 2 million individuals and >5,000 cases of PPHN. Maternal diabetes was significantly associated with a higher risk of PPHN (risk ratio [RR], 1.37; 95% confidence interval [CI], 1.23 to 1.51). Both case-control and cohort studies exhibited that the presence of maternal diabetes increased the risk of PPHN (case-control: RR, 1.91; 95% CI, 1.02 to 2.79; cohort: RR, 1.36; 95% CI, 1.22 to 1.50). By omitting 1 study at a time, sensitivity analysis made sure that no individual study was entirely responsible for the combined results. CONCLUSIONS Maternal diabetes was associated with increased risk of PPHN. For babies with refractory hypoxemia, with mothers with diabetes, PPHN should be taken into consideration in clinical practice.
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8
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Sexual dimorphism on aortic remodelling in rats offspring from diabetic mothers and the role of flaxseed oil in this effect. J Dev Orig Health Dis 2019; 10:338-344. [PMID: 30827294 DOI: 10.1017/s2040174418000740] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Diabetes during pregnancy is associated with aortic remodelling in the fetus, stimulating the development of cardiovascular diseases in adult life. However, studies suggest that the use of foods high in omega-3 fatty acid, such as flaxseed oil, may reverse this effect of metabolic programming. This study aimed at investigating whether the effects of diabetes in mothers are passed on to their offspring in a gender-specific manner and whether the flaxseed oil used during pregnancy and lactation reverses or not the possible negative effects of this programming. Diabetic female rats (n = 18) were mated and allocated into three groups (n = 6): high-fat group (HG); flaxseed oil group (FOG) and control group (CG) (nondiabetic rats) during pregnancy and lactation. On the 21st day, male and female pups were weaned on a standard diet until 180 days. Aorta histomorphometry was analysed. Intima-media layer thickness was larger in FOG than CG in male (+15%) and than HG in female (+13.7%). Male FOG (+11.5%) showed higher amount of elastic fibre than CG. Maternal intake of flaxseed oil during pregnancy and lactation of diabetic mothers program the offspring to increase aorta intima-media layer thickness in adulthood and preserves aorta elastic fibres deposition in male offspring.
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9
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Sallam NA, Palmgren VAC, Singh RD, John CM, Thompson JA. Programming of Vascular Dysfunction in the Intrauterine Milieu of Diabetic Pregnancies. Int J Mol Sci 2018; 19:E3665. [PMID: 30463313 PMCID: PMC6275067 DOI: 10.3390/ijms19113665] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Revised: 11/14/2018] [Accepted: 11/16/2018] [Indexed: 02/07/2023] Open
Abstract
With the rising global tide of obesity, gestational diabetes mellitus (GDM) burgeoned into one of the most common antenatal disorders worldwide. Macrosomic babies born to diabetic mothers are more likely to develop risk factors for cardiovascular disease (CVD) before they reach adulthood. Rodent studies in offspring born to hyperglycemic pregnancies show vascular dysfunction characterized by impaired nitric oxide (NO)-mediated vasodilation and increased production of contractile prostanoids by cyclooxygenase 2 (COX-2). Vascular dysfunction is a key pathogenic event in the progression of diabetes-related vascular disease, primarily attributable to glucotoxicity. Therefore, glucose-induced vascular injury may stem directly from the hyperglycemic intrauterine environment of GDM pregnancy, as evinced by studies showing endothelial activation and inflammation at birth or in childhood in offspring born to GDM mothers. This review discusses potential mechanisms by which intrauterine hyperglycemia programs dysfunction in the developing vasculature.
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Affiliation(s)
- Nada A Sallam
- Department of Physiology and Pharmacology, Libin Cardiovascular Institute of Alberta, Calgary, AB T2N 4N1, Canada.
- Children's Hospital Research Institute; University of Calgary, Calgary, AB T2N 4N1, Canada.
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt.
| | - Victoria A C Palmgren
- Department of Physiology and Pharmacology, Libin Cardiovascular Institute of Alberta, Calgary, AB T2N 4N1, Canada.
| | - Radha D Singh
- Department of Physiology and Pharmacology, Libin Cardiovascular Institute of Alberta, Calgary, AB T2N 4N1, Canada.
- Children's Hospital Research Institute; University of Calgary, Calgary, AB T2N 4N1, Canada.
| | - Cini M John
- Department of Physiology and Pharmacology, Libin Cardiovascular Institute of Alberta, Calgary, AB T2N 4N1, Canada.
| | - Jennifer A Thompson
- Department of Physiology and Pharmacology, Libin Cardiovascular Institute of Alberta, Calgary, AB T2N 4N1, Canada.
- Children's Hospital Research Institute; University of Calgary, Calgary, AB T2N 4N1, Canada.
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10
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Luo H, Chen C, Guo L, Xu Z, Peng X, Wang X, Wang J, Wang N, Li C, Luo X, Wang H, Jose PA, Fu C, Huang Y, Shi W, Zeng C. Exposure to Maternal Diabetes Mellitus Causes Renal Dopamine D 1 Receptor Dysfunction and Hypertension in Adult Rat Offspring. Hypertension 2018; 72:962-970. [PMID: 30354705 PMCID: PMC6207228 DOI: 10.1161/hypertensionaha.118.10908] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2018] [Accepted: 08/05/2018] [Indexed: 01/01/2023]
Abstract
Epidemiological and experimental studies suggest that maternal diabetes mellitus programs hypertension that is associated with impaired sodium excretion in the adult offspring. However, the underlying mechanisms are not clear. Because dopamine receptor function is involved in the pathogenesis of hypertension, we hypothesized that impaired renal dopamine D1 receptor function is also involved in the hypertension in offspring of maternal diabetes mellitus. Maternal diabetes mellitus was induced by a single intraperitoneal injection of streptozotocin (35 mg/kg) to pregnant Sprague-Dawley rats at day 0 of gestation. Compared with the offspring of mothers injected with citrate buffer (control mother offspring), the diabetic mother offspring (DMO) had increased systolic blood pressure and impaired D1 receptor-mediated diuresis and natriuresis, accompanied by increased renal PKC (protein kinase C) expression and activity, GRK-2 (G protein-coupled receptor kinase-2) expression, D1 receptor phosphorylation, D1 receptor/Gαs uncoupling, and loss of D1 receptor-mediated inhibition of Na+-K+-ATPase activity in renal proximal tubule cells from DMO. Inhibition of PKC reduced the increased GRK-2 expression and normalized D1 receptor function in primary cultures of renal proximal tubule cells from DMO. In addition, DMO, relative to control mother offspring, in vivo, had increased oxidative stress, indicated by decreased renal glutathione and increased renal malondialdehyde and urine 8-isoprostane. Normalization of oxidative stress with tempol also normalized the renal D1 receptor phosphorylation, D1 receptor-mediated diuresis and natriuresis, and blood pressure in DMO. Our present study indicates that maternal diabetes mellitus-programed hypertension in the offspring is caused by impaired renal D1 receptor function because of oxidative stress that is mediated by increased PKC-GRK-2 activity.
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Affiliation(s)
- Hao Luo
- Department of Cardiology, Chongqing Key Laboratory for Hypertension, Chongqing Institute of Cardiology, Chongqing Cardiovascular Clinical Research Center, Daping Hospital, The Third Military Medical University, Chongqing, China
| | - Caiyu Chen
- Department of Cardiology, Chongqing Key Laboratory for Hypertension, Chongqing Institute of Cardiology, Chongqing Cardiovascular Clinical Research Center, Daping Hospital, The Third Military Medical University, Chongqing, China
| | - Li Guo
- Department of Cardiology, Chongqing Key Laboratory for Hypertension, Chongqing Institute of Cardiology, Chongqing Cardiovascular Clinical Research Center, Daping Hospital, The Third Military Medical University, Chongqing, China
| | - Zaicheng Xu
- Department of Cardiology, Chongqing Key Laboratory for Hypertension, Chongqing Institute of Cardiology, Chongqing Cardiovascular Clinical Research Center, Daping Hospital, The Third Military Medical University, Chongqing, China
| | - Xiaoyu Peng
- Department of Cardiology, Chongqing Key Laboratory for Hypertension, Chongqing Institute of Cardiology, Chongqing Cardiovascular Clinical Research Center, Daping Hospital, The Third Military Medical University, Chongqing, China
| | - Xinquan Wang
- Department of Cardiology, Chongqing Key Laboratory for Hypertension, Chongqing Institute of Cardiology, Chongqing Cardiovascular Clinical Research Center, Daping Hospital, The Third Military Medical University, Chongqing, China
| | - Jialiang Wang
- Department of Cardiology, Chongqing Key Laboratory for Hypertension, Chongqing Institute of Cardiology, Chongqing Cardiovascular Clinical Research Center, Daping Hospital, The Third Military Medical University, Chongqing, China
| | - Na Wang
- Department of Cardiology, Chongqing Key Laboratory for Hypertension, Chongqing Institute of Cardiology, Chongqing Cardiovascular Clinical Research Center, Daping Hospital, The Third Military Medical University, Chongqing, China
| | - Chuanwei Li
- Department of Cardiology, Chongqing Key Laboratory for Hypertension, Chongqing Institute of Cardiology, Chongqing Cardiovascular Clinical Research Center, Daping Hospital, The Third Military Medical University, Chongqing, China
| | - Xiaoli Luo
- Department of Cardiology, Chongqing Key Laboratory for Hypertension, Chongqing Institute of Cardiology, Chongqing Cardiovascular Clinical Research Center, Daping Hospital, The Third Military Medical University, Chongqing, China
| | - Hongyong Wang
- Department of Cardiology, Chongqing Key Laboratory for Hypertension, Chongqing Institute of Cardiology, Chongqing Cardiovascular Clinical Research Center, Daping Hospital, The Third Military Medical University, Chongqing, China
| | - Pedro A. Jose
- Division of Renal Diseases & Hypertension, The George Washington University School of Medicine and Health Sciences, Washington, DC
| | - Chunjiang Fu
- Department of Cardiology, Chongqing Key Laboratory for Hypertension, Chongqing Institute of Cardiology, Chongqing Cardiovascular Clinical Research Center, Daping Hospital, The Third Military Medical University, Chongqing, China
| | - Yu Huang
- Institute of Vascular Medicine and Li Ka Shing Institute of Health Sciences, Chinese University of Hong Kong, Sha Tin, Hong Kong, China
| | - Weibin Shi
- Department of Cardiology, Chongqing Key Laboratory for Hypertension, Chongqing Institute of Cardiology, Chongqing Cardiovascular Clinical Research Center, Daping Hospital, The Third Military Medical University, Chongqing, China
| | - Chunyu Zeng
- Department of Cardiology, Chongqing Key Laboratory for Hypertension, Chongqing Institute of Cardiology, Chongqing Cardiovascular Clinical Research Center, Daping Hospital, The Third Military Medical University, Chongqing, China
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11
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Dib A, Payen C, Bourreau J, Munier M, Grimaud L, Fajloun Z, Loufrani L, Henrion D, Fassot C. In Utero Exposure to Maternal Diabetes Is Associated With Early Abnormal Vascular Structure in Offspring. Front Physiol 2018; 9:350. [PMID: 29670546 PMCID: PMC5893798 DOI: 10.3389/fphys.2018.00350] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Accepted: 03/20/2018] [Indexed: 11/13/2022] Open
Abstract
Aim/hypothesis:In utero exposure to maternal diabetes increases the risk of developing hypertension and cardiovascular disorders during adulthood. We have previously shown that this is associated with changes in vascular tone in favor of a vasoconstrictor profile, which is involved in the development of hypertension. This excessive constrictor tone has also a strong impact on vascular structure. Our objective was to study the impact of in utero exposure to maternal diabetes on vascular structure and remodeling induced by chronic changes in hemodynamic parameters. Methods and Results: We used an animal model of rats exposed in utero to maternal hyperglycemia (DMO), which developed hypertension at 6 months of age. At a pre-hypertensive stage (3 months of age), we observed deep structural modifications of the vascular wall without any hemodynamic perturbations. Indeed, in basal conditions, resistance arteries of DMO rats are smaller than those of control mother offspring (CMO) rats; in addition, large arteries like thoracic aorta of DMO rats have an increase of smooth muscle cell attachments to elastic lamellae. In an isolated perfused kidney, we also observed a leftward shift of the flow/pressure relationship, suggesting a rise in renal peripheral vascular resistance in DMO compared to CMO rats. In this context, we studied vascular remodeling in response to reduced blood flow by in vivo mesenteric arteries ligation. In DMO rats, inward remodeling induced by a chronic reduction in blood flow (1 or 3 weeks after ligation) did not occur by contrast to CMO rats in which arterial diameter decreased from 428 ± 17 μm to 331 ± 20 μm (at 125 mmHg, p = 0.001). In these animals, the transglutaminase 2 (TG2) pathway, essential for inward remodeling development in case of flow perturbations, was not activated in low-flow (LF) mesenteric arteries. Finally, in old hypertensive DMO rats (18 months of age), we were not able to detect a pressure-induced remodeling in thoracic aorta. Conclusions: Our results demonstrate for the first time that in utero exposure to maternal diabetes induces deep changes in the vascular structure. Indeed, the early narrowing of the microvasculature and the structural modifications of conductance arteries could be a pre-emptive adaptation to fetal programming of hypertension.
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Affiliation(s)
- Abdallah Dib
- UMR Centre National de la Recherche Scientifique 6015, INSERM U1083, MITOVASC, University of Angers, Angers, France
| | - Cyrielle Payen
- UMR Centre National de la Recherche Scientifique 6015, INSERM U1083, MITOVASC, University of Angers, Angers, France
| | - Jennifer Bourreau
- UMR Centre National de la Recherche Scientifique 6015, INSERM U1083, MITOVASC, University of Angers, Angers, France
| | - Mathilde Munier
- UMR Centre National de la Recherche Scientifique 6015, INSERM U1083, MITOVASC, University of Angers, Angers, France.,University Hospital of Angers, Angers, France.,Reference Center for Rare Disease of Thyroid and Hormone Receptors, University Hospital Angers, Angers, France
| | - Linda Grimaud
- UMR Centre National de la Recherche Scientifique 6015, INSERM U1083, MITOVASC, University of Angers, Angers, France
| | - Ziad Fajloun
- Faculty of Sciences III, Azm Center for Research in Biotechnology and Its Applications, Doctoral School of Science and Technology, Lebanese University, Tripoli, Lebanon
| | - Laurent Loufrani
- UMR Centre National de la Recherche Scientifique 6015, INSERM U1083, MITOVASC, University of Angers, Angers, France.,University Hospital of Angers, Angers, France
| | - Daniel Henrion
- UMR Centre National de la Recherche Scientifique 6015, INSERM U1083, MITOVASC, University of Angers, Angers, France.,University Hospital of Angers, Angers, France
| | - Céline Fassot
- UMR Centre National de la Recherche Scientifique 6015, INSERM U1083, MITOVASC, University of Angers, Angers, France
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12
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Little R, Zi M, Hammad SK, Nguyen L, Njegic A, Kurusamy S, Prehar S, Armesilla AL, Neyses L, Austin C, Cartwright EJ. Reduced expression of PMCA1 is associated with increased blood pressure with age which is preceded by remodelling of resistance arteries. Aging Cell 2017; 16:1104-1113. [PMID: 28795531 PMCID: PMC5595685 DOI: 10.1111/acel.12637] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/05/2017] [Indexed: 01/11/2023] Open
Abstract
Hypertension is a well‐established risk factor for adverse cardiovascular events, and older age is a risk factor for the development of hypertension. Genomewide association studies have linked ATP2B1, the gene for the plasma membrane calcium ATPase 1 (PMCA1), to blood pressure (BP) and hypertension. Here, we present the effects of reduction in the expression of PMCA1 on BP and small artery structure and function when combined with advancing age. Heterozygous PMCA1 null mice (PMCA1Ht) were generated and conscious BP was measured at 6 to 18 months of age. Passive and active properties of isolated small mesenteric arteries were examined by pressure myography. PMCA1Ht mice exhibited normal BP at 6 and 9 months of age but developed significantly elevated BP when compared to age‐matched wild‐type controls at ≥12 months of age. Decreased lumen diameter, increased wall thickness and increased wall:lumen ratio were observed in small mesenteric arteries from animals 9 months of age and older, indicative of eutrophic remodelling. Increases in mesenteric artery intrinsic tone and global intracellular calcium were evident in animals at both 6 and 18 months of age. Thus, decreased expression of PMCA1 is associated with increased BP when combined with advancing age. Changes in arterial structure precede the elevation of BP. Pathways involving PMCA1 may be a novel target for BP regulation in the elderly.
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Affiliation(s)
- Robert Little
- Division of Cardiovascular Sciences; Manchester Academic Health Science Centre; The University of Manchester; AV Hill Building Manchester M13 9PT UK
- School of Food Science and Nutrition; The University of Leeds; Leeds LS2 9JT UK
| | - Min Zi
- Division of Cardiovascular Sciences; Manchester Academic Health Science Centre; The University of Manchester; AV Hill Building Manchester M13 9PT UK
| | - Sally K. Hammad
- Division of Cardiovascular Sciences; Manchester Academic Health Science Centre; The University of Manchester; AV Hill Building Manchester M13 9PT UK
- Department of Biochemistry; Faculty of Pharmacy; Zagazig University; Zagazig 44519 Egypt
| | - Loan Nguyen
- Division of Cardiovascular Sciences; Manchester Academic Health Science Centre; The University of Manchester; AV Hill Building Manchester M13 9PT UK
| | - Alexandra Njegic
- Division of Cardiovascular Sciences; Manchester Academic Health Science Centre; The University of Manchester; AV Hill Building Manchester M13 9PT UK
| | - Sathishkumar Kurusamy
- Research Institute in Healthcare Science; School of Pharmacy; University of Wolverhampton; Wolverhampton WV1 1LY UK
| | - Sukhpal Prehar
- Division of Cardiovascular Sciences; Manchester Academic Health Science Centre; The University of Manchester; AV Hill Building Manchester M13 9PT UK
| | - Angel L. Armesilla
- Research Institute in Healthcare Science; School of Pharmacy; University of Wolverhampton; Wolverhampton WV1 1LY UK
| | - Ludwig Neyses
- Division of Cardiovascular Sciences; Manchester Academic Health Science Centre; The University of Manchester; AV Hill Building Manchester M13 9PT UK
- University of Luxembourg; Avenue de l'Universite Esch-sur-Alzette L-4365 Luxembourg
| | - Clare Austin
- Division of Cardiovascular Sciences; Manchester Academic Health Science Centre; The University of Manchester; AV Hill Building Manchester M13 9PT UK
- Faculty of Health and Social Care; Edge Hill University; Lancashire L39 4QP UK
| | - Elizabeth J. Cartwright
- Division of Cardiovascular Sciences; Manchester Academic Health Science Centre; The University of Manchester; AV Hill Building Manchester M13 9PT UK
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13
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Lehtoranta L, Koskinen A, Vuolteenaho O, Laine J, Kytö V, Soukka H, Ekholm E, Räsänen J. Gestational hyperglycemia reprograms cardiac gene expression in rat offspring. Pediatr Res 2017; 82:356-361. [PMID: 28288147 DOI: 10.1038/pr.2017.42] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2016] [Accepted: 02/08/2017] [Indexed: 12/15/2022]
Abstract
BackgroundRat fetuses with maternal pregestational hyperglycemia develop cardiac dysfunction, and their cardiac gene expression differs from that of healthy control fetuses near term. We hypothesized that cardiac gene expression and morphologic abnormalities of rat fetuses with maternal pregestational hyperglycemia become normal after birth.MethodsNine rats were preconceptually injected with streptozotocin to induce maternal hyperglycemia and nine rats served as controls. The hyperglycemia group comprised 82 mice and the control group 74 offspring fed by euglycemic dams. Hearts of the offspring were collected on postnatal days 0, 7, and 14, and processed for histologic and gene expression analyses.ResultsOn day 0, heart weight was increased, and expression of cardiac genes involved in contractility, growth, and metabolism was decreased in the hyperglycemia group. On day 7, although cardiomyocyte apoptosis was enhanced, most of the changes in gene expression had normalized in the hyperglycemia group. By day 14, the expression of genes important for myocardial growth, function, and metabolism was again abnormal in the hyperglycemia group.ConclusionMost cardiac gene expression abnormalities become transiently normal during the first week of life of offspring to hyperglycemic rats. However, by day 14, cardiac expressions of genes involved in growth, function, and metabolism are again abnormal in relation to control offspring.
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Affiliation(s)
- Lara Lehtoranta
- Department of Obstetrics and Gynecology, University of Turku, Turku, Finland
| | - Anna Koskinen
- Department of Obstetrics and Gynecology, University of Turku, Turku, Finland
| | - Olli Vuolteenaho
- Department of Obstetrics and Gynecology, University of Turku, Turku, Finland
| | - Jukka Laine
- Department of Obstetrics and Gynecology, University of Turku, Turku, Finland
| | - Ville Kytö
- Department of Obstetrics and Gynecology, University of Turku, Turku, Finland
| | - Hanna Soukka
- Department of Obstetrics and Gynecology, University of Turku, Turku, Finland
| | - Eeva Ekholm
- Department of Obstetrics and Gynecology, University of Turku, Turku, Finland
| | - Juha Räsänen
- Department of Obstetrics and Gynecology, University of Turku, Turku, Finland
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14
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Review on intrauterine programming: Consequences in rodent models of mild diabetes and mild fat overfeeding are not mild. Placenta 2017; 52:21-32. [DOI: 10.1016/j.placenta.2017.02.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Revised: 02/06/2017] [Accepted: 02/09/2017] [Indexed: 02/08/2023]
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15
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Gao L, Zhao YC, Liang Y, Lin XH, Tan YJ, Wu DD, Li XZ, Ye BZ, Kong FQ, Sheng JZ, Huang HF. The impaired myocardial ischemic tolerance in adult offspring of diabetic pregnancy is restored by maternal melatonin treatment. J Pineal Res 2016; 61:340-52. [PMID: 27299979 DOI: 10.1111/jpi.12351] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Accepted: 06/13/2016] [Indexed: 01/01/2023]
Abstract
Diabetic pregnancy, with ever increasing prevalence, adversely affects embryogenesis and increases vasculometabolic disorder risks in adult offspring. However, it remains poorly understood whether maternal diabetes increases the offspring's susceptibility to heart injuries in adulthood. In this study, we observed that cardiac function and structure were comparable between adult offspring born to diabetic mice and their counterparts born to nondiabetic mice at baseline. However, in response to myocardial ischemia/reperfusion (MIR), diabetic mother offspring exhibited augmented infarct size, cardiac dysfunction, and myocardial apoptosis compared with control, in association with exaggerated activation of mitochondria- and endoplasmic reticulum (ER) stress-mediated apoptosis pathways and oxidative stress. Molecular analysis showed that the impaired myocardial ischemic tolerance in diabetic mother offspring was mainly attributable to blunted cardiac insulin receptor substrate (IRS)-1/Akt signaling. Furthermore, the effect of maternal melatonin administration on offspring's response to MIR was determined, and the results indicated that melatonin treatment in diabetic dams during pregnancy significantly improved the tolerance to MIR injury in their offspring, via restoring cardiac IRS-1/Akt signaling. Taken together, these data suggest that maternal diabetes predisposes offspring to augmented MIR injury in adulthood, and maternal melatonin supplementation during diabetic pregnancy may hold promise for improving myocardial ischemic tolerance in the offspring.
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Affiliation(s)
- Ling Gao
- The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yi-Chao Zhao
- Department of Cardiology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yan Liang
- The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Xian-Hua Lin
- The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Ya-Jing Tan
- The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Dan-Dan Wu
- The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Xin-Zhu Li
- The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Bo-Zhi Ye
- Department of Cardiology, The First Affiliated Hospital, School of Medicine, Wenzhou Medical University, Wenzhou, China
| | - Fan-Qi Kong
- Department of Cardiology, The First Affiliated Hospital, School of Medicine, Wenzhou Medical University, Wenzhou, China
| | - Jian-Zhong Sheng
- The Key Laboratory of Reproductive Genetics, Ministry of Education (Zhejiang University), Hangzhou, China
- Department of Pathology and Pathophysiology, School of Medicine, Zhejiang University, Hangzhou, China
| | - He-Feng Huang
- The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
- The Key Laboratory of Reproductive Genetics, Ministry of Education (Zhejiang University), Hangzhou, China.
- Institute of Embryo-Fetal Original Adult Diseases, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
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