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Krzesiak A, Enea C, Faivre JF, Bescond J, Vanderbrouck C, Cognard C, Sebille S, Bosquet L, Delpech N. Combined cardiovascular effects of ovariectomy and high-intensity interval training in female spontaneously hypertensive rats. J Appl Physiol (1985) 2024; 136:1195-1208. [PMID: 38572539 DOI: 10.1152/japplphysiol.00518.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 03/27/2024] [Accepted: 03/28/2024] [Indexed: 04/05/2024] Open
Abstract
Hypertensive postmenopausal women are more likely to develop adverse cardiac remodeling and respond less effectively to drug treatment than men. High-intensity interval exercise (HIIE) is a nonpharmacological strategy for the treatment of hypertension; however, the effectiveness in women remains uncertain. This study was designed to evaluate 1) the effects of HIIE training upon morphological and functional markers of cardiovascular health in female SHR and 2) to determine whether the hormonal shift induced by ovariectomy could influence cardiovascular responses to HIIE. Thirty-six SHR were randomly assigned to four groups: ovariectomized sedentary, ovariectomized trained, sham-operated sedentary, and sham-operated trained. The trained rats performed HIIE 5 days/wk for 8 wk. Blood pressure and echocardiographic measurements were performed before and after training in animals. Cardiac response to β-adrenergic stimulation and the expression of calcium regulatory proteins and estrogen receptors in heart samples were assessed. Endothelium-dependent vasorelaxation in response to acetylcholine was evaluated in aortic rings as well as the expression of nitric oxide synthase isoforms (eNOS and P-eNOS) by Western blotting. In both groups of trained SHR, HIIE induced eccentric cardiac remodeling with greater inotropic and chronotropic effects, as well as an increase in SERCA and β1AR expression. However, although the trained rats showed improved endothelial function and expression of eNOS and P-eNOS in the aorta, there was no demonstrated effect on blood pressure. In addition, the responses to HIIE training were not affected by ovariectomy. This work highlights the importance of assessing the cardiovascular efficacy and safety of different exercise modalities in women.NEW & NOTEWORTHY This study reports the effects of high-intensity interval exercise (HIIE) training on cardiac and endothelial function in female hypertensive rats. Despite a lack of effect on blood pressure (BP), HIIE training induces eccentric cardiac remodeling with greater functionals effects. Furthermore, training has beneficial effects on endothelial function. However, ovarian hormones do not seem to modulate cardiac and aortic adaptations to this training modality. All this underlines the need to consider training modalities on the cardiovascular system in women.
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Affiliation(s)
- Amandine Krzesiak
- Laboratoire MOVE (UR 20296), Faculty of Sport Sciences, University of Poitiers, Poitiers, France
- Laboratoire PRéTI (UR 24184), University of Poitiers, Poitiers, France
| | - Carina Enea
- Laboratoire MOVE (UR 20296), Faculty of Sport Sciences, University of Poitiers, Poitiers, France
| | | | - Jocelyn Bescond
- Laboratoire PRéTI (UR 24184), University of Poitiers, Poitiers, France
| | | | - Christian Cognard
- Laboratoire PRéTI (UR 24184), University of Poitiers, Poitiers, France
| | - Stéphane Sebille
- Laboratoire PRéTI (UR 24184), University of Poitiers, Poitiers, France
| | - Laurent Bosquet
- Laboratoire MOVE (UR 20296), Faculty of Sport Sciences, University of Poitiers, Poitiers, France
| | - Nathalie Delpech
- Laboratoire MOVE (UR 20296), Faculty of Sport Sciences, University of Poitiers, Poitiers, France
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Arabacı Tamer S, Altınoluk T, Emran M, Korkmaz S, Yüksel RG, Baykal Z, Dur ZS, Levent HN, Ural MA, Yüksel M, Çevik Ö, Ercan F, Yıldırım A, Yeğen BÇ. Melatonin Alleviates Ovariectomy-Induced Cardiovascular Inflammation in Sedentary or Exercised Rats by Upregulating SIRT1. Inflammation 2022; 45:2202-2222. [PMID: 35665875 DOI: 10.1007/s10753-022-01685-2] [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: 03/16/2022] [Revised: 04/25/2022] [Accepted: 05/16/2022] [Indexed: 11/28/2022]
Abstract
We aimed to evaluate the impact of hormone replacement, melatonin, or exercise alone or their combination on oxidative damage and functional status of heart, brain, and aorta of ovariectomized (OVX) rats and to determine whether the signaling pathway is dependent on sirtuin-1 (SIRT1). Ovariectomized Sprague Dawley rats were orally given either a hormone replacement therapy (1 mg/kg/day,17β estradiol; HRT) or melatonin (4 mg/kg/day) or HRT + melatonin treatments or tap water, while each group was further divided into sedentary and exercise (30 min/5 days/week) groups. After the heart rate measurements and memory tests were performed, trunk blood was collected at the end of the 10th week to determine metabolic parameters in serum samples. Tissue samples of abdominal aorta, heart, and brain were taken for biochemical measurements and histopathological evaluation. Heart rates and memory performances of the OVX rats were not changed significantly by none of the applications. Melatonin treatment or its co-administration with HRT upregulated the expressions of IL-10 and SIRT1, reduced the expressions of IL-6 and TNF-α, and reduced DNA damage in the hearts and thoracic aortae of non-exercised rats. Co-administration of melatonin and HRT to exercised OVX rats reduced inflammatory response and upregulated SIRT1 expression in the aortic and cardiac tissues. The present study suggests that melatonin treatment, either alone or in combination with exercise and/or HRT, upregulates SIRT1 expression and alleviates oxidative injury and inflammation in the hearts and aortas of OVX rats. Melatonin should be considered in alleviating cardiovascular disease risk in postmenopausal women.
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Affiliation(s)
- Sevil Arabacı Tamer
- Department of Physiology, Marmara University School of Medicine, Basibüyük Mah. Maltepe Basibüyük Yolu No. 9/1, 34854, Maltepe, Istanbul, Turkey.,Department of Physiology, Sakarya University School of Medicine, Sakarya, Turkey.,Department of Physiology, Marmara University Institute of Health Sciences, Istanbul, Turkey
| | - Tülin Altınoluk
- Department of Physiology, Marmara University School of Medicine, Basibüyük Mah. Maltepe Basibüyük Yolu No. 9/1, 34854, Maltepe, Istanbul, Turkey.,Department of Physiology, Marmara University Institute of Health Sciences, Istanbul, Turkey
| | - Miray Emran
- Marmara University School of Medicine, Istanbul, Turkey
| | - Seda Korkmaz
- Marmara University School of Medicine, Istanbul, Turkey
| | | | - Zeynep Baykal
- Marmara University School of Medicine, Istanbul, Turkey
| | | | - Hilal Nişva Levent
- Department of Histology & Embryology, Marmara University School of Medicine, Istanbul, Turkey
| | - Mürüvvet Abbak Ural
- Department of Biochemistry, Faculty of Medicine, Aydın Adnan Menderes University, Aydın, Turkey
| | - Meral Yüksel
- Marmara University Vocational School of Health Sciences, Istanbul, Turkey
| | - Özge Çevik
- Department of Biochemistry, Faculty of Medicine, Aydın Adnan Menderes University, Aydın, Turkey
| | - Feriha Ercan
- Department of Histology & Embryology, Marmara University School of Medicine, Istanbul, Turkey
| | - Alper Yıldırım
- Department of Physiology, Marmara University School of Medicine, Basibüyük Mah. Maltepe Basibüyük Yolu No. 9/1, 34854, Maltepe, Istanbul, Turkey
| | - Berrak Ç Yeğen
- Department of Physiology, Marmara University School of Medicine, Basibüyük Mah. Maltepe Basibüyük Yolu No. 9/1, 34854, Maltepe, Istanbul, Turkey.
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Gai X, Lin P, He Y, Lu D, Li Z, Liang Y, Ma Y, Cairang N, Zuo M, Bao Y, Gazang Z, Wu X. Echinacoside prevents hypoxic pulmonary hypertension by regulating the pulmonary artery function. J Pharmacol Sci 2020; 144:237-244. [PMID: 33070843 DOI: 10.1016/j.jphs.2020.09.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 08/05/2020] [Accepted: 09/08/2020] [Indexed: 12/27/2022] Open
Abstract
Hypoxic pulmonary hypertension (HPH) is a progressive and irreversible disease that reduces survival. Echinacoside is a phenylethanoid glycoside from Tibetan herbs known for its vasorelaxant effect and for inhibiting the proliferation of rat pulmonary arterial smooth muscle cells. This study aimed to investigate the effect of echinacoside on HPH. Sprague Dawley rats were housed in a hypobaric hypoxia chamber (4500 m) for 28 days to obtain the HPH model. Echinacoside (3.75, 7.5, 15, 30 and 40 mg/kg) was administered by intraperitoneal injection from the 1st to the 28th day. The mean pulmonary artery pressure (mPAP), right ventricular hypertrophy index, hemoglobin, hematocrit, red blood cell concentration and morphological change of pulmonary arteries were evaluated. Vascular perfusion assay was used to assess the pulmonary artery function. Echinacoside reduced mPAP, hemoglobin, hematocrit, right ventricular hypertrophy index and mean wall thickness% of pulmonary arteries in HPH rats. It significantly increased maximum vasoconstriction percentage of pulmonary arteries induced by noradrenaline in a dose-dependent manner. In addition, it improved the responsiveness of pulmonary arteries to acetylcholine and sodium nitroprusside. Therefore, Echinacoside might be an effective treatment against HPH, since it regulated pulmonary artery endothelium and smooth muscle layer function and improved the remodeling of pulmonary artery.
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Affiliation(s)
- Xiangyun Gai
- School of Pharmacy, Qinghai Nationalities University, Xining, Qinghai 810007, China
| | - Pengcheng Lin
- School of Pharmacy, Qinghai Nationalities University, Xining, Qinghai 810007, China.
| | - Yanfeng He
- School of Pharmacy, Qinghai Nationalities University, Xining, Qinghai 810007, China
| | - Dianxiang Lu
- Research Center for High Altitude Medicine, Qinghai University, Xining, Qinghai 810001, China
| | - Zhanqiang Li
- Research Center for High Altitude Medicine, Qinghai University, Xining, Qinghai 810001, China
| | - Yongxin Liang
- School of Pharmacy, Qinghai Nationalities University, Xining, Qinghai 810007, China
| | - Yuhua Ma
- School of Pharmacy, Qinghai Nationalities University, Xining, Qinghai 810007, China
| | - Nanjia Cairang
- School of Pharmacy, Qinghai Nationalities University, Xining, Qinghai 810007, China
| | - Mingli Zuo
- School of Pharmacy, Qinghai Nationalities University, Xining, Qinghai 810007, China
| | - Yi Bao
- School of Pharmacy, Qinghai Nationalities University, Xining, Qinghai 810007, China
| | - Zhaxi Gazang
- School of Pharmacy, Qinghai Nationalities University, Xining, Qinghai 810007, China
| | - Xuehua Wu
- People's Hospital of Qinghai Province, Xining, Qinghai 810007, China
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