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Balogh DB, Molnar A, Degi A, Toth A, Lenart L, Saeed A, Barczi A, Szabo AJ, Wagner LJ, Reusz G, Fekete A. Cardioprotective and Antifibrotic Effects of Low-Dose Renin-Angiotensin-Aldosterone System Inhibitors in Type 1 Diabetic Rat Model. Int J Mol Sci 2023; 24:17043. [PMID: 38069366 PMCID: PMC10707380 DOI: 10.3390/ijms242317043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Revised: 11/28/2023] [Accepted: 11/29/2023] [Indexed: 12/18/2023] Open
Abstract
Diabetic cardiovascular complications are associated with up to 50% mortality, and current therapies are not effective enough. Renin-angiotensin-aldosterone system inhibitors (RAASis) are the standard of care for diabetic patients with hypertension and albuminuria. Based on our previous studies reporting the renoprotective effects of low-dose RAASis, here, we hypothesized that low-dose RAASi treatment has cardioprotective and antifibrotic benefits in type 1 diabetes mellitus (T1DM). After five weeks of T1DM, adult male Wistar rats received low doses of ramipril, losartan, or eplerenone for two weeks. Heart rate, blood pressure, and pulse wave velocity (PWV) were recorded. Aortic intima-media thickness (IMT), collagen accumulation, and myocardial fibrosis were assessed. All RAASis reduced PWV elevation, prevented the progression of myocardial fibrosis, and normalized B-type natriuretic peptide, troponin I, and fibroblast growth factor 23 levels without affecting blood pressure. Interestingly, only eplerenone reversed the decline in Klotho levels and reduced IMT and fibrosis in the media of the aorta. Our comparative analysis suggests that mineralocorticoid receptor antagonists, particularly eplerenone, may offer superior efficacy in halting both the arterial and the myocardial injuries in T1DM compared to angiotensin-converting enzyme inhibitors or angiotensin II type 1 receptor blockers.
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Affiliation(s)
- Dora B. Balogh
- MTA-SE Lendület “Momentum” Diabetes Research Group, 1083 Budapest, Hungary; (D.B.B.); (A.T.); (L.L.); (A.S.)
- Pediatric Center, MTA Center of Excellence, Semmelweis University, 1083 Budapest, Hungary; (A.M.); (A.D.); (A.J.S.); (G.R.)
| | - Agnes Molnar
- Pediatric Center, MTA Center of Excellence, Semmelweis University, 1083 Budapest, Hungary; (A.M.); (A.D.); (A.J.S.); (G.R.)
| | - Arianna Degi
- Pediatric Center, MTA Center of Excellence, Semmelweis University, 1083 Budapest, Hungary; (A.M.); (A.D.); (A.J.S.); (G.R.)
| | - Akos Toth
- MTA-SE Lendület “Momentum” Diabetes Research Group, 1083 Budapest, Hungary; (D.B.B.); (A.T.); (L.L.); (A.S.)
- Pediatric Center, MTA Center of Excellence, Semmelweis University, 1083 Budapest, Hungary; (A.M.); (A.D.); (A.J.S.); (G.R.)
| | - Lilla Lenart
- MTA-SE Lendület “Momentum” Diabetes Research Group, 1083 Budapest, Hungary; (D.B.B.); (A.T.); (L.L.); (A.S.)
- Pediatric Center, MTA Center of Excellence, Semmelweis University, 1083 Budapest, Hungary; (A.M.); (A.D.); (A.J.S.); (G.R.)
| | - Adar Saeed
- MTA-SE Lendület “Momentum” Diabetes Research Group, 1083 Budapest, Hungary; (D.B.B.); (A.T.); (L.L.); (A.S.)
- Pediatric Center, MTA Center of Excellence, Semmelweis University, 1083 Budapest, Hungary; (A.M.); (A.D.); (A.J.S.); (G.R.)
| | - Adrienn Barczi
- Medical Imaging Center, Semmelweis University, 1082 Budapest, Hungary;
| | - Attila J. Szabo
- Pediatric Center, MTA Center of Excellence, Semmelweis University, 1083 Budapest, Hungary; (A.M.); (A.D.); (A.J.S.); (G.R.)
| | - Laszlo J. Wagner
- Department of Surgery, Transplantation and Gastroenterology, Semmelweis University, 1082 Budapest, Hungary;
| | - Gyorgy Reusz
- Pediatric Center, MTA Center of Excellence, Semmelweis University, 1083 Budapest, Hungary; (A.M.); (A.D.); (A.J.S.); (G.R.)
| | - Andrea Fekete
- MTA-SE Lendület “Momentum” Diabetes Research Group, 1083 Budapest, Hungary; (D.B.B.); (A.T.); (L.L.); (A.S.)
- Pediatric Center, MTA Center of Excellence, Semmelweis University, 1083 Budapest, Hungary; (A.M.); (A.D.); (A.J.S.); (G.R.)
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Martin CT, Primeaux SD. The hypothalamic neuropeptide, QRFP, regulates high fat diet intake in female Long-Evans rats following ovariectomy. Peptides 2023; 162:170960. [PMID: 36690209 PMCID: PMC9992330 DOI: 10.1016/j.peptides.2023.170960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 12/12/2022] [Accepted: 01/20/2023] [Indexed: 01/22/2023]
Abstract
Obesity rates in women continue to increase throughout the lifespan and obesity-related comorbidities are prevalent in women in estrogen deficiency. The hypothalamic neuropeptide, QRFP, is an orexigenic peptide that increases the intake of high fat diet (HFD) in female rats and is overexpressed following ovariectomy (OVX). Therefore, the goal of the current series of experiments was to elucidate the effect of QRFP on HFD intake following OVX and determine if QRFP-26 administration in ovariectomized females altered expression of prepro-neuropeptide Y (NPY), agouti-related peptide (AgRP) and proopiomelanocortin (POMC) mRNA in the mediobasal hypothalamus (MBH) and prepro-orexin in the lateral hypothalamus (LH). The intake of HFD was measured following acute administration of QRFP-26 prior to or following estradiol benzoate (EB) treatment in ovariectomized females. When administered prior to EB treatment, QRFP-26 increased HFD intake. EB treatment attenuated the effects of QRFP-26 on HFD intake. Sub-chronic, continuous administration of QRFP-26 increased HFD intake and weight gain following OVX. Subchronic, continuous administration of QRFP siRNA into the 3rd ventricle via osmotic pump decreased prepro-QRFP mRNA levels in the MBH by ∼75%, decreased HFD intake and decreased weight gain following OVX. QRFP-26administration did not alter the expression of prepro-NPY, AgRP or POMC mRNA in the MBH, but decreased prepro-orexin mRNA in the LH of ovariectomized females. Overall, results from these studies support the orexigenic neuropeptide, QRFP, as an important mediator of the ingestion of highly palatable foods and subsequent weight gain in females during estrogen deficiency.
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Affiliation(s)
- Cade T Martin
- Department of Physiology, LSU Health Sciences Center-NO, New Orleans, LA 70112, USA
| | - Stefany D Primeaux
- Department of Physiology, LSU Health Sciences Center-NO, New Orleans, LA 70112, USA; Joint Diabetes, Endocrinology & Metabolism Program, Pennington Biomedical Research Center, Baton Rouge, LA 70808, USA.
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Pimentel Cordeiro J, da Silva DS, Torezani-sales S, Madureira AR, Claudio ERG, Bocalini DS, Lima-leopoldo AP, Leopoldo AS. Resistance to obesity prevents obesity development without increasing spontaneous physical activity and not directly related to greater metabolic and oxidative capacity. PLoS One 2022; 17:e0271592. [PMID: 35951512 PMCID: PMC9371322 DOI: 10.1371/journal.pone.0271592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 06/30/2022] [Indexed: 11/21/2022] Open
Abstract
There are evidence that obese-resistant animals are more physically active, due to a higher rate of lipid oxidation. Efficiency in such pathways can favor greater spontaneous physical activity and, consequently, less body fat deposition. The aim of study was characterizing the nutritional profile and spontaneous physical activity in the condition of Resistance to Obesity (OR). Wistar rats were randomized into standard diet (SD; n = 50) and high-fat diet (HFD; n = 50) groups, after obesity induction, were redistributed into Control (C), False-control (FC), Propensity to obesity (OP) and OR, and then spontaneous physical activity was evaluated. Analyzed parameters: body mass (BM), epididymal (EF), retroperitoneal (RF), visceral (VF) and respective summations (∑), adiposity index (AI), nutritional, morphological, biochemical and metabolic parameters and protein quantification. The comparison of the groups was performed by ANOVA one or two factors, with 5% significance adopted. OP and FC presented high final MC values compared to C and OR. OR had lower EF, RF, VF, ∑ and IA compared to OP. OR had similar values to C and higher HDL than FC and OP. In GTT, OR and C presented similar values and both were lower than OP in the 30 minutes. OP promoted higher values than C for glycemic AUC. OR had higher PPARγ content than C and OP, as well as levels similar to C for leptin and insulin. Spontaneous physical activity did not differ between groups. The results were not enough to show that OR animals have greater lipid oxidative capacity, as well as greater spontaneous physical activity.
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Cordeiro JP, Silva VLD, Campos DH, Cicogna AC, Leopoldo AS, Lima-Leopoldo AP. Isolated obesity resistance condition or associated with aerobic exercise training does not promote cardiac impairment. ACTA ACUST UNITED AC 2021; 54:e10669. [PMID: 34287576 PMCID: PMC8289349 DOI: 10.1590/1414-431x2020e10669] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 05/28/2021] [Indexed: 11/30/2022]
Abstract
Mechanisms involved in cardiac function and calcium (Ca2+) handling in obese-resistant (OR) rats are still poorly determined. We tested the hypothesis that unsaturated high-fat diet (HFD) promotes myocardial dysfunction in OR rats, which it is related to Ca2+ handling. In addition, we questioned whether exercise training (ET) becomes a therapeutic strategy. Male Wistar rats (n=80) were randomized to standard or HFD diets for 20 weeks. The rats were redistributed for the absence or presence of ET and OR: control (C; n=12), control + ET (CET; n=14), obese-resistant (OR; n=9), and obese-resistant + ET (ORET; n=10). Trained rats were subjected to aerobic training protocol with progressive intensity (55-70% of the maximum running speed) and duration (15 to 60 min/day) for 12 weeks. Nutritional, metabolic, and cardiovascular parameters were determined. Cardiac function and Ca2+ handling tests were performed in isolated left ventricle (LV) papillary muscle. OR rats showed cardiac atrophy with reduced collagen levels, but there was myocardial dysfunction. ET was efficient in improving most parameters of body composition. However, the mechanical properties and Ca2+ handling from isolated papillary muscle were similar among groups. Aerobic ET does not promote morphological and cardiac functional adaptation under the condition of OR.
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Affiliation(s)
- J P Cordeiro
- Programa de Pós-Graduação em Educação Física, Centro de Educação Física e Desportos, Universidade Federal do Espírito Santo, Vitória, ES, Brasil
| | - V L da Silva
- Departamento de Clínica Médica, Faculdade de Medicina de Botucatu, Universidade Estadual Paulista, Botucatu, SP, Brasil
| | - D H Campos
- Departamento de Clínica Médica, Faculdade de Medicina de Botucatu, Universidade Estadual Paulista, Botucatu, SP, Brasil
| | - A C Cicogna
- Departamento de Clínica Médica, Faculdade de Medicina de Botucatu, Universidade Estadual Paulista, Botucatu, SP, Brasil
| | - A S Leopoldo
- Programa de Pós-Graduação em Educação Física, Centro de Educação Física e Desportos, Universidade Federal do Espírito Santo, Vitória, ES, Brasil
| | - A P Lima-Leopoldo
- Programa de Pós-Graduação em Educação Física, Centro de Educação Física e Desportos, Universidade Federal do Espírito Santo, Vitória, ES, Brasil
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Poret JM, Gaudet DA, Braymer HD, Primeaux SD. Sex differences in markers of metabolic syndrome and adipose tissue inflammation in obesity-prone, Osborne-Mendel and obesity-resistant, S5B/Pl rats. Life Sci 2021; 273:119290. [PMID: 33662430 DOI: 10.1016/j.lfs.2021.119290] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 01/17/2021] [Accepted: 02/26/2021] [Indexed: 11/30/2022]
Abstract
The current study examined the role of sex differences in the development of risk factors associated with obesity and its comorbidities using models that differ in their susceptibility to develop obesity, obesity-resistant S5B/Pl (S5B) and obesity-prone Osborne-Mendel (OM) rats. Male and female rats were fed a low fat or high fat diet (HFD) and markers of metabolic syndrome (MetSyn) and expression of inflammatory cytokines/chemokines in visceral and subcutaneous adipose depots were measured. We hypothesized that male and female OM and S5B rats would exhibit differential responses to the consumption of HFD and that females, regardless of susceptibility to develop obesity, would display decreased obesity-related risk factors. Results suggested that consumption of HFD increased adiposity and fasting glucose levels in male OM and S5B rats, decreased circulating adiponectin levels in male S5B rats, and increased body weight and triglyceride levels in male OM rats. The consumption of HFD increased body weight and adiposity in female OM rats, not female S5B rats. Overall, female rats did not meet criteria for MetSyn, while male rats consuming HFD met criteria for MetSyn. Visceral and subcutaneous adipose tissue inflammation was higher in male rats. In visceral adipose tissue, HFD consumption differentially altered expression of cytokines in male and female S5B and OM rats. These findings suggest that resistance to obesity in males may be overridden by chronic consumption of HFD and lead to increased risk for development of obesity-related comorbidities, while female rats appear to be protected from the adverse effects of HFD consumption.
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Affiliation(s)
- Jonquil M Poret
- Department of Physiology, LSU Health Sciences Center, New Orleans, LA 70112, United States of America
| | - Darryl A Gaudet
- Department of Physiology, LSU Health Sciences Center, New Orleans, LA 70112, United States of America
| | - H Douglas Braymer
- Joint Diabetes, Endocrinology & Metabolism Program, Pennington Biomedical Research Center, Baton Rouge, LA 70808, United States of America
| | - Stefany D Primeaux
- Department of Physiology, LSU Health Sciences Center, New Orleans, LA 70112, United States of America; Joint Diabetes, Endocrinology & Metabolism Program, Pennington Biomedical Research Center, Baton Rouge, LA 70808, United States of America.
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Oduro PK, Fang J, Niu L, Li Y, Li L, Zhao X, Wang Q. Pharmacological management of vascular endothelial dysfunction in diabetes: TCM and western medicine compared based on biomarkers and biochemical parameters. Pharmacol Res 2020; 158:104893. [PMID: 32434053 DOI: 10.1016/j.phrs.2020.104893] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 04/18/2020] [Accepted: 05/03/2020] [Indexed: 12/20/2022]
Abstract
Diabetes, a worldwide health concern while burdening significant populace of countries with time due to a hefty increase in both incidence and prevalence rates. Hyperglycemia has been buttressed both in clinical and experimental studies to modulate widespread molecular actions that effect macro and microvascular dysfunctions. Endothelial dysfunction, activation, inflammation, and endothelial barrier leakage are key factors contributing to vascular complications in diabetes, plus the development of diabetes-induced cardiovascular diseases. The recent increase in molecular, transcriptional, and clinical studies has brought a new scope to the understanding of molecular mechanisms and the therapeutic targets for endothelial dysfunction in diabetes. In this review, an attempt made to discuss up to date critical and emerging molecular signaling pathways involved in the pathophysiology of endothelial dysfunction and viable pharmacological management targets. Importantly, we exploit some Traditional Chinese Medicines (TCM)/TCM isolated bioactive compounds modulating effects on endothelial dysfunction in diabetes. Finally, clinical studies data on biomarkers and biochemical parameters involved in the assessment of the efficacy of treatment in vascular endothelial dysfunction in diabetes was compared between clinically used western hypoglycemic drugs and TCM formulas.
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Affiliation(s)
- Patrick Kwabena Oduro
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, PR China; Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Ministry of Education, Tianjin 301617, PR China
| | - Jingmei Fang
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, PR China; Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Ministry of Education, Tianjin 301617, PR China
| | - Lu Niu
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, PR China; Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Ministry of Education, Tianjin 301617, PR China
| | - Yuhong Li
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, PR China; Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Ministry of Education, Tianjin 301617, PR China; Tianjin Key Laboratory of Chinese medicine Pharmacology, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, PR China
| | - Lin Li
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, PR China; Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Ministry of Education, Tianjin 301617, PR China; Tianjin Key Laboratory of Chinese medicine Pharmacology, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, PR China
| | - Xin Zhao
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, PR China; Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Ministry of Education, Tianjin 301617, PR China; Tianjin Key Laboratory of Chinese medicine Pharmacology, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, PR China
| | - Qilong Wang
- Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, PR China; Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Ministry of Education, Tianjin 301617, PR China; Tianjin Key Laboratory of Chinese medicine Pharmacology, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, PR China.
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