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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] [What about the content of this article? (0)] [Affiliation(s)] [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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Gázquez A, Rodríguez F, Sánchez-Campillo M, Martínez-Gascón LE, Arnao MB, Saura-Garre P, Albaladejo-Otón MD, Larqué E. Adiponectin agonist treatment in diabetic pregnant rats. J Endocrinol 2021; 251:1-13. [PMID: 34156347 PMCID: PMC8345900 DOI: 10.1530/joe-20-0617] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Accepted: 06/22/2021] [Indexed: 12/31/2022]
Abstract
Gestational diabetes mellitus (GDM) reduces maternal adiponectin and docosahexaenoic acid (DHA) materno-fetal transfer, which may have negative consequences for the offspring. Our aim was to evaluate the effects of the administration of a novel adiponectin agonist (AdipoRon) to GDM rats on the long-term consequences in glycaemia and fatty acids (FA) profile in the offspring. Pregnant rats were randomized to three groups: GDM rats (GDM, n = 8), GDM rats treated with AdipoRon (GDM + ADI, n = 9), and control rats (n = 10). Diabetes was induced with streptozotocin (50 mg/kg) on day 12 of gestation. GDM+ADI received 50 mg/kg/day AdipoRon from day 14 until delivery. Glycaemia and FA profile were determined in mothers and adult offspring (12 weeks old). AdipoRon tended to reduce fasting glucose in diabetic mothers. Diabetic rats presented the foetus with intrauterine growth restriction and higher adiposity, which tried to be counteracted by AdipoRon. In the adult offspring, both GDM + ADI and control animals showed better glucose recovery after oral glucose overload with respect to GDM. DHA in offspring plasma was significantly reduced in both GDM and GDM + ADI compared to controls (P = 0.043). Nevertheless, n-6/n-3 polyunsaturated FA (PUFA) ratio improved in plasma of GDM + ADI adult offspring (GDM: 14.83 ± 0.85a%; GDM + ADI: 11.49 ± 0.58b%; control: 10.03 ± 1.22b%, P = 0.034). Inflammatory markers and oxidative stress were reduced in the adult offspring of AdipoRon-treated mothers. In conclusion, AdipoRon administration to pregnant diabetic rats improved glycaemia in the mothers and long-term glucose tolerance in the offspring. In addition, it tended to reduce excessive foetal fat accumulation and improved n-6/n-3 PUFA ratio significantly in offspring at the adult state.
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Affiliation(s)
- Antonio Gázquez
- Department of Physiology, CEIR Campus Mare Nostrum, University of Murcia, Biomedical Research Institute of Murcia, Murcia, Spain
| | - Francisca Rodríguez
- Department of Physiology, CEIR Campus Mare Nostrum, University of Murcia, Biomedical Research Institute of Murcia, Murcia, Spain
| | - María Sánchez-Campillo
- Department of Physiology, CEIR Campus Mare Nostrum, University of Murcia, Biomedical Research Institute of Murcia, Murcia, Spain
| | - Lidia E Martínez-Gascón
- Department of Clinical Analysis, Biomedical Research Institute of Murcia, Santa Lucia General University Hospital, Murcia, Spain
| | - Marino B Arnao
- Department of Plant Biology (Plant Physiology), University of Murcia, Murcia, Spain
| | - Pedro Saura-Garre
- Department of Clinical Psychology, University Clinical Hospital Virgen de la Arrixaca, Murcia, Spain
| | - María D Albaladejo-Otón
- Department of Clinical Analysis, Biomedical Research Institute of Murcia, Santa Lucia General University Hospital, Murcia, Spain
| | - Elvira Larqué
- Department of Physiology, CEIR Campus Mare Nostrum, University of Murcia, Biomedical Research Institute of Murcia, Murcia, Spain
- Correspondence should be addressed to E Larque:
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