1
|
Xu X, Fan Y, Yang X, Liu Y, Wang Y, Zhang J, Hou X, Fan Y, Zhang M. Anji white tea relaxes precontracted arteries, represses voltage-gated Ca 2+ channels and voltage-gated K + channels in the arterial smooth muscle cells: Comparison with green tea main component (-)-epigallocatechin gallate. J Ethnopharmacol 2024; 328:117855. [PMID: 38346524 DOI: 10.1016/j.jep.2024.117855] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2023] [Revised: 01/29/2024] [Accepted: 02/01/2024] [Indexed: 03/28/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Tea (Camellia sinensis) is a favorite drink worldwide. Tea extracts and green tea main component (-)-epigallocatechin gallate (EGCG) are recommended for various vascular diseases. Anji white tea is a very popular green tea. Its vascular effect profile, the mechanisms, and the contribution of EGCG to its integrated effect need elucidation. AIM To characterize the vasomotion effects of Anji white tea and EGCG, and to explore possible involvement of voltage-gated Ca2+ channels (VGCCs) and voltage-gated K+ (Kv) channels in their vasomotion effects. MATERIALS AND METHODS Anji white tea water soaking solution (AJWT) was prepared as daily tea-making process and concentrated to a concentration amounting to 200 mg/ml of dry tea leaves. The tension of rat arteries including aorta, coronary artery (RCA), cerebral basilar artery (CBA), intrarenal artery (IRA), intrapulmonary artery (IPA) and mesenteric artery (MA) was recorded with myographs. In arterial smooth muscle cells (ASMCs) freshly isolated from RCA, the levels of intracellular Ca2+ were measured with Ca2+-sensitive fluorescent probe fluo 4-AM, and Kv currents were recorded with patch clamp. The expressions of VGCCs and Kv channels were assayed with RT-qPCR and immunofluorescence staining. RESULTS At 0.4-12.8 mg/ml of dry tea leaves, AJWT profoundly relaxed all tested arteries precontracted with various vasoconstrictors about half with a small transient potentiation on the precontractions before the relaxation. KCl-induced precontraction was less sensitive than precontractions induced by phenylephrine (PE), U46619 and serotonin (5-HT). IPA was less sensitive to the relaxation compared with other arteries. AJWT pretreatment for 1 h, 24 h and 72 h time-dependently inhibited the contractile responses of RCAs. In sharp contrast, at equivalent concentrations according to its content in AJWT, EGCG intensified the precontractions in most small arteries, except that it induced relaxation in PE-precontracted aorta and MA, U46619-precontracted aorta and CBA. EGCG pretreatment for 1 h and 24 h did not significantly affect RCA contractile responses. In RCA ASMCs, AJWT reduced, while EGCG enhanced, intracellular Ca2+ elevation induced by depolarization which activates VGCCs. Patch clamp study showed that both AJWT and EGCG reduced Kv currents. RT-qPCR and immunofluorescence staining demonstrated that both AJWT and EGCG reduced the expressions of VGCCs and Kv channels. CONCLUSION AJWT, but not EGCG, consistently induces vasorelaxation. The vasomotion effects of either AJWT or EGCG vary with arterial beds and vasoconstrictors. Modulation of VGCCs, but not Kv channels, contributes to AJWT-induced vasorelaxation. It is suggested that Anji white tea water extract instead of EGCG may be a promising food supplement for vasospastic diseases.
Collapse
Affiliation(s)
- Xiaojia Xu
- Department of Pharmacology, Shanxi Medical University, Xinjiannanlu 56, Taiyuan, 030001, Shanxi Province, China
| | - Yingying Fan
- Department of Pharmacology, Shanxi Medical University, Xinjiannanlu 56, Taiyuan, 030001, Shanxi Province, China
| | - Xiaomin Yang
- Department of Pharmacology, Shanxi Medical University, Xinjiannanlu 56, Taiyuan, 030001, Shanxi Province, China
| | - Yu Liu
- Department of Pharmacology, Shanxi Medical University, Xinjiannanlu 56, Taiyuan, 030001, Shanxi Province, China.
| | - Yan Wang
- Department of Pharmacology, Shanxi Medical University, Xinjiannanlu 56, Taiyuan, 030001, Shanxi Province, China
| | - Jiangtao Zhang
- Department of Pharmacology, Shanxi Medical University, Xinjiannanlu 56, Taiyuan, 030001, Shanxi Province, China
| | - Xiaomin Hou
- Department of Pharmacology, Shanxi Medical University, Xinjiannanlu 56, Taiyuan, 030001, Shanxi Province, China
| | - Yanying Fan
- Department of Pharmacology, Shanxi Medical University, Xinjiannanlu 56, Taiyuan, 030001, Shanxi Province, China.
| | - Mingsheng Zhang
- Department of Pharmacology, Shanxi Medical University, Xinjiannanlu 56, Taiyuan, 030001, Shanxi Province, China.
| |
Collapse
|
2
|
Germer CT. [Mesenteric ischemia]. Chirurgie (Heidelb) 2024; 95:345-346. [PMID: 38639773 DOI: 10.1007/s00104-024-02048-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 01/30/2024] [Indexed: 04/20/2024]
Affiliation(s)
- C-T Germer
- Klinik für Allgemein‑, Viszeral‑, Transplantations‑, Gefäß- und Kinderchirurgie Universitätsklinikum Würzburg, Zentrum Operative Medizin (ZOM), Oberdürrbacher Str. 6, 97080, Würzburg, Deutschland.
| |
Collapse
|
3
|
Terlouw LG, van Dijk LJD, van Noord D, Bakker OJ, Bijdevaate DC, Erler NS, Fioole B, Harki J, van den Heuvel DAF, Hinnen JW, Kolkman JJ, Nikkessen S, van Petersen AS, Smits HFM, Verhagen HJM, de Vries AC, de Vries JPPM, Vroegindeweij D, Geelkerken RH, Bruno MJ, Moelker A. Covered versus bare-metal stenting of the mesenteric arteries in patients with chronic mesenteric ischaemia (CoBaGI): a multicentre, patient-blinded and investigator-blinded, randomised controlled trial. Lancet Gastroenterol Hepatol 2024; 9:299-309. [PMID: 38301673 DOI: 10.1016/s2468-1253(23)00402-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 11/14/2023] [Accepted: 11/15/2023] [Indexed: 02/03/2024]
Abstract
BACKGROUND Mesenteric artery stenting with a bare-metal stent is the current treatment for atherosclerotic chronic mesenteric ischaemia. Long-term patency of bare-metal stents is unsatisfactory due to in-stent intimal hyperplasia. Use of covered stents might improve long-term patency. We aimed to compare the patency of covered stents and bare-metal stents in patients with chronic mesenteric ischaemia. METHODS We conducted a multicentre, patient-blinded and investigator-blinded, randomised controlled trial including patients with chronic mesenteric ischaemia undergoing mesenteric artery stenting. Six centres in the Netherlands participated in this study, including two national chronic mesenteric ischaemia expert centres. Patients aged 18 years or older were eligible for inclusion when an endovascular mesenteric artery revascularisation was scheduled and a consensus diagnosis of chronic mesenteric ischaemia was made by a multidisciplinary team of gastroenterologists, interventional radiologists, and vascular surgeons. Exclusion criteria were stenosis length of 25 mm or greater, stenosis caused by median arcuate ligament syndrome or vasculitis, contraindication for CT angiography, or previous target vessel revascularisation. Digital 1:1 block randomisation with block sizes of four or six and stratification by inclusion centre was used to allocate patients to undergo stenting with bare-metal stents or covered stents at the start of the procedure. Patients, physicians performing follow-up, investigators, and radiologists were masked to treatment allocation. Interventionalists performing the procedure were not masked. The primary study outcome was the primary patency of covered stents and bare-metal stents at 24 months of follow-up, evaluated in the modified intention-to-treat population, in which stents with missing data for the outcome were excluded. Loss of primary patency was defined as the performance of a re-intervention to preserve patency, or 75% or greater luminal surface area reduction of the target vessel. CT angiography was performed at 6 months, 12 months, and 24 months post intervention to assess patency. The study is registered with ClinicalTrials.gov (NCT02428582) and is complete. FINDINGS Between April 6, 2015, and March 11, 2019, 158 eligible patients underwent mesenteric artery stenting procedures, of whom 94 patients (with 128 stents) provided consent and were included in the study. 47 patients (62 stents) were assigned to the covered stents group (median age 69·0 years [IQR 63·0-76·5], 28 [60%] female) and 47 patients (66 stents) were assigned to the bare-metal stents group (median age 70·0 years [63·5-76·5], 33 [70%] female). At 24 months, the primary patency of covered stents (42 [81%] of 52 stents) was superior to that of bare-metal stents (26 [49%] of 53; odds ratio [OR] 4·4 [95% CI 1·8-10·5]; p<0·0001). A procedure-related adverse event occurred in 17 (36%) of 47 patients in the covered stents group versus nine (19%) of 47 in the bare-metal stent group (OR 2·4 [95% CI 0·9-6·3]; p=0·065). Most adverse events were related to the access site, including haematoma (five [11%] in the covered stents group vs six [13%] in the bare-metal stents group), pseudoaneurysm (five [11%] vs two [4%]), radial artery thrombosis (one [2%] vs none), and intravascular closure device (none vs one [2%]). Six (13%) patients in the covered stent group versus one (2%) in the bare-metal stent group had procedure-related adverse events not related to the access site, including stent luxation (three [6%] vs none), major bleeding (two (4%) vs none), mesenteric artery perforation (one [2%] vs one [2%]), mesenteric artery dissection (one [2%] vs one [2%]), and death (one [2%] vs none). INTERPRETATION The findings of this trial support the use of covered stents for mesenteric artery stenting in patients with chronic mesenteric ischaemia. FUNDING Atrium Maquet Getinge Group.
Collapse
Affiliation(s)
- Luke G Terlouw
- Department of Gastroenterology and Hepatology, Erasmus MC University Medical Centre, Rotterdam, Netherlands; Department of Radiology and Nuclear Medicine, Erasmus MC University Medical Centre, Rotterdam, Netherlands.
| | - Louisa J D van Dijk
- Department of Gastroenterology and Hepatology, Erasmus MC University Medical Centre, Rotterdam, Netherlands; Department of Radiology and Nuclear Medicine, Erasmus MC University Medical Centre, Rotterdam, Netherlands
| | - Desirée van Noord
- Department of Gastroenterology and Hepatology, Franciscus Gasthuis & Vlietland, Rotterdam, Netherlands
| | - Olaf J Bakker
- Department of Vascular Surgery, St Antonius Ziekenhuis, Nieuwegein, Netherlands; Department of Vascular Surgery, University Hospital Leipzig, Leipzig, Germany
| | - Diederik C Bijdevaate
- Department of Radiology and Nuclear Medicine, Erasmus MC University Medical Centre, Rotterdam, Netherlands
| | - Nicole S Erler
- Department of Biostatistics, Erasmus MC University Medical Centre, Rotterdam, Netherlands; Department of Epidemiology, Erasmus MC University Medical Centre, Rotterdam, Netherlands
| | - Bram Fioole
- Department of Vascular Surgery, Maasstad Ziekenhuis, Rotterdam, Netherlands
| | - Jihan Harki
- Department of Gastroenterology and Hepatology, Erasmus MC University Medical Centre, Rotterdam, Netherlands
| | | | - Jan Willem Hinnen
- Department of Vascular Surgery, Jeroen Bosch Ziekenhuis, 's-Hertogenbosch, Netherlands
| | - Jeroen J Kolkman
- Department of Gastroenterology and Hepatology, Medisch Spectrum Twente, Enschede, Netherlands; Department of Gastroenterology and Hepatology, University Medical Centre Groningen, Groningen, Netherlands
| | - Suzan Nikkessen
- Department of Gastroenterology and Hepatology, Erasmus MC University Medical Centre, Rotterdam, Netherlands
| | | | - Henk F M Smits
- Department of Radiology, Bernhoven Hospital, Uden, Netherlands
| | - Hence J M Verhagen
- Department of Vascular Surgery, Erasmus MC University Medical Centre, Rotterdam, Netherlands
| | - Annemarie C de Vries
- Department of Gastroenterology and Hepatology, Erasmus MC University Medical Centre, Rotterdam, Netherlands
| | - Jean-Paul P M de Vries
- Department of Surgery, Division of Vascular Surgery, University Medical Centre Groningen, Groningen, Netherlands
| | - Dammis Vroegindeweij
- Department of Radiology and Nuclear Imaging, Maasstad Ziekenhuis, Rotterdam, Netherlands
| | - Robert H Geelkerken
- Department of Vascular Surgery, Medisch Spectrum Twente, Enschede, Netherlands; Multi-modality Medical Imaging (M3I) group, Faculty of Science and Technology, Technical Medical Centre, University of Twente, Enschede, Netherlands
| | - Marco J Bruno
- Department of Gastroenterology and Hepatology, Erasmus MC University Medical Centre, Rotterdam, Netherlands
| | - Adriaan Moelker
- Department of Radiology and Nuclear Medicine, Erasmus MC University Medical Centre, Rotterdam, Netherlands
| |
Collapse
|
4
|
Mozzicato AM, Bastrup JA, Sanchez-Alonso JL, van der Horst J, Gorelik J, Hägglund P, Jepps TA. Mesenteric artery smooth muscle cells from hypertensive rats have increased microtubule acetylation. Biochem J 2024; 481:387-403. [PMID: 38373073 DOI: 10.1042/bcj20230420] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 02/19/2024] [Accepted: 02/19/2024] [Indexed: 02/21/2024]
Abstract
The dynamic nature of the microtubule network is dependent in part by post-translational modifications (PTMs) - particularly through acetylation, which stabilizes the microtubule network. Whether PTMs of the microtubule network in vascular smooth muscle cells (VSMCs) contribute to the pathophysiology of hypertension is unknown. The aim of this study was to determine the acetylated state of the microtubule network in the mesenteric arteries of spontaneously hypertensive rats (SHR). Experiments were performed on male normotensive rats and SHR mesenteric arteries. Western blotting and mass spectrometry determined changes in tubulin acetylation. Wire myography was used to investigate the effect of tubacin on isoprenaline-mediated vasorelaxations. Isolated cells from normotensive rats were used for scanning ion conductance microscopy (SICM). Mass spectrometry and Western blotting showed that tubulin acetylation is increased in the mesenteric arteries of the SHR compared with normotensive rats. Tubacin enhanced the β-adrenoceptor-mediated vasodilatation by isoprenaline when the endothelium was intact, but attenuated relaxations when the endothelium was denuded or nitric oxide production was inhibited. By pre-treating vessels with colchicine to disrupt the microtubule network, we were able to confirm that the effects of tubacin were microtubule-dependent. Using SICM, we examined the cell surface Young's modulus of VSMCs, but found no difference in control, tubacin-treated, or taxol-treated cells. Acetylation of tubulin at Lys40 is elevated in mesenteric arteries from the SHR. Furthermore, this study shows that tubacin has an endothelial-dependent bimodal effect on isoprenaline-mediated vasorelaxation.
Collapse
Affiliation(s)
- Anthony M Mozzicato
- Vascular Biology Group, Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Joakim A Bastrup
- Vascular Biology Group, Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Jose L Sanchez-Alonso
- Myocardial Function, National Heart and Lung Institute, Imperial College London, ICTEM, Hammersmith Hospital, London, U.K
| | - Jennifer van der Horst
- Vascular Biology Group, Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Julia Gorelik
- Myocardial Function, National Heart and Lung Institute, Imperial College London, ICTEM, Hammersmith Hospital, London, U.K
| | - Per Hägglund
- Protein Oxidation Group, Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Thomas A Jepps
- Vascular Biology Group, Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark
| |
Collapse
|
5
|
Wang Y, Zheng M, Zhao G, Bao Y. Superior mesenteric arteriovenous fistula: A case report. Asian J Surg 2024; 47:1427-1428. [PMID: 38087689 DOI: 10.1016/j.asjsur.2023.11.113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Accepted: 11/17/2023] [Indexed: 03/13/2024] Open
Affiliation(s)
- Yu Wang
- Dept.of The Second Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Mengyao Zheng
- Dept.of The Second Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Gongfang Zhao
- Dept.of The Second Affiliated Hospital of Kunming Medical University, Kunming, China.
| | - Yanqing Bao
- Dept.of The Second Affiliated Hospital of Kunming Medical University, Kunming, China
| |
Collapse
|
6
|
Xu FF, Zheng F, Chen Y, Wang Y, Ma SB, Ding W, Zhang LS, Guo JZ, Zheng CB, Shen B. Role of thrombospondin-1 in high-salt-induced mesenteric artery endothelial impairment in rats. Acta Pharmacol Sin 2024; 45:545-557. [PMID: 37932403 PMCID: PMC10834453 DOI: 10.1038/s41401-023-01181-9] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Accepted: 10/08/2023] [Indexed: 11/08/2023] Open
Abstract
The matrix glycoprotein thrombospondin-1 (THBS1) modulates nitric oxide (NO) signaling in endothelial cells. A high-salt diet induces deficiencies of NO production and bioavailability, thereby leading to endothelial dysfunction. In this study we investigated the changes of THBS1 expression and its pathological role in the dysfunction of mesenteric artery endothelial cells (MAECs) induced by a high-salt diet. Wild-type rats, and wild-type and Thbs1-/- mice were fed chow containing 8% w/w NaCl for 4 weeks. We showed that a high salt diet significantly increased THBS1 expression and secretion in plasma and MAECs, and damaged endothelium-dependent vasodilation of mesenteric resistance arteries in wild-type animals, but not in Thbs1-/- mice. In rat MAECs, we demonstrated that a high salt environment (10-40 mM) dose-dependently increased THBS1 expression accompanied by suppressed endothelial nitric oxide synthase (eNOS) and phospho-eNOS S1177 production as well as NO release. Blockade of transforming growth factor-β1 (TGF-β1) activity by a TGF-β1 inhibitor SB 431542 reversed THBS1 up-regulation, rescued the eNOS decrease, enhanced phospho-eNOS S1177 expression, and inhibited Smad4 translocation to the nucleus. By conducting dual-luciferase reporter experiments in HEK293T cells, we demonstrated that Smad4, a transcription promoter, upregulated Thbs1 transcription. We conclude that THBS1 contributes to endothelial dysfunction in a high-salt environment and may be a potential target for treatment of high-salt-induced endothelium dysfunction.
Collapse
Affiliation(s)
- Fang-Fang Xu
- School of Basic Medical Sciences, Anhui Medical University, Hefei, 230032, China
- Department of Pharmacy, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230001, China
| | - Fan Zheng
- School of Basic Medical Sciences, Anhui Medical University, Hefei, 230032, China
| | - Ye Chen
- Department of Pathology, The First Affiliated Hospital of Anhui Medical University, Hefei, 230032, China
| | - Yang Wang
- Department of Otolaryngology-Head and Neck Surgery, Lu'an People's Hospital, Lu'an Affiliated Hospital of Anhui Medical University, Lu'an, 237000, China
| | - Shao-Bo Ma
- School of Basic Medical Sciences, Anhui Medical University, Hefei, 230032, China
| | - Weng Ding
- School of Basic Medical Sciences, Anhui Medical University, Hefei, 230032, China
| | - Le-Sha Zhang
- School of Basic Medical Sciences, Anhui Medical University, Hefei, 230032, China
| | - Ji-Zheng Guo
- School of Basic Medical Sciences, Anhui Medical University, Hefei, 230032, China
| | - Chang-Bo Zheng
- School of Pharmaceutical Science, Kunming Medical University, Kunming, 650500, China.
| | - Bing Shen
- School of Basic Medical Sciences, Anhui Medical University, Hefei, 230032, China.
| |
Collapse
|
7
|
Kudryavtseva O, Lyngsø KS, Jensen BL, Dimke H. Nitric oxide, endothelium-derived hyperpolarizing factor, and smooth muscle-dependent mechanisms contribute to magnesium-dependent vascular relaxation in mouse arteries. Acta Physiol (Oxf) 2024; 240:e14096. [PMID: 38258597 DOI: 10.1111/apha.14096] [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] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 09/27/2023] [Accepted: 01/01/2024] [Indexed: 01/24/2024]
Abstract
AIM Magnesium (Mg2+ ) is a vasorelaxant. The underlying physiological mechanisms driving this vasorelaxation remain unclear. Studies were designed to test the hypothesis that multiple signaling pathways including nitric oxide (NO) and endothelium-derived hyperpolarizing factor (EDHF) in endothelial cells as well as Ca2+ antagonization and TRPM7 channels in vascular smooth muscle cells mediate Mg2+ -dependent vessel relaxation. METHODS To uncover these mechanisms, force development was measured ex vivo in aorta rings from mice using isometric wire myography. Concentration responses to Mg2+ were studied in intact and endothelium-denuded aortas. Key findings were confirmed in second-order mesenteric resistance arteries perfused ex vivo using pressure myography. Effects of Mg2+ on NO formation were measured in Chinese Hamster Ovary (CHO) cells, isolated mesenteric vessels, and mouse urine. RESULTS Mg2+ caused a significant concentration-dependent relaxation of aorta rings. This relaxation was attenuated significantly in endothelium-denuded aortas. The endothelium-dependent portion was inhibited by NO and cGMP blockade but not by cyclooxygenase inhibition. Mg2+ stimulated local NO formation in CHO cells and isolated mesenteric vessels without changing urinary NOx levels. High extracellular Mg2+ augmented acetylcholine-induced relaxation. SKCa and IKCa channel blockers apamin and TRAM34 inhibited Mg2+ -dependent relaxation. The endothelium-independent relaxation in aorta rings was inhibited by high extracellular Ca2+ . Combined blockade of NO, SKCa , and IKCa channels significantly reduced Mg2+ -dependent dilatation in mesenteric resistance vessels. CONCLUSIONS In mouse conductance and resistance arteries Mg2+ -induced relaxation is contributed by endothelial NO formation, EDHF pathways, antagonism of Ca2+ in smooth muscle cells, and additional unidentified mechanisms.
Collapse
Affiliation(s)
- Olga Kudryavtseva
- Department of Cardiovascular and Renal Research, Institute of Molecular Medicine, University of Southern Denmark, Odense C, Denmark
| | - Kristina S Lyngsø
- Department of Cardiovascular and Renal Research, Institute of Molecular Medicine, University of Southern Denmark, Odense C, Denmark
| | - Boye L Jensen
- Department of Cardiovascular and Renal Research, Institute of Molecular Medicine, University of Southern Denmark, Odense C, Denmark
| | - Henrik Dimke
- Department of Cardiovascular and Renal Research, Institute of Molecular Medicine, University of Southern Denmark, Odense C, Denmark
- Department of Nephrology, Odense University Hospital, Odense, Denmark
| |
Collapse
|
8
|
Assersen KB, Jensen BL, Enggaard C, Vanhoutte PM, Hansen PBL. Histamine H 2-receptor antagonism improves conduit artery endothelial function and reduces plasma aldosterone level without lowering arterial blood pressure in angiotensin II-hypertensive mice. Pflugers Arch 2024; 476:307-321. [PMID: 38279994 PMCID: PMC10847227 DOI: 10.1007/s00424-024-02909-0] [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] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 01/06/2024] [Accepted: 01/09/2024] [Indexed: 01/29/2024]
Abstract
Aldosterone through the mineralocorticoid receptor MR has detrimental effects on cardiovascular disease. It reduces the bioavailability of nitric oxide and impairs endothelium-dependent vasodilatation. In resistance arteries, aldosterone impairs the sensitivity of vascular smooth muscle cells to nitric oxide by promoting the local secretion of histamine which activates H2 receptors. The present experiments tested in vivo and ex vivo the hypothesis that systemic H2-receptor antagonism reduces arterial blood pressure and improves vasodilatation in angiotensin II-induced chronic hypertension. Hypertension was induced by intravenous infusion of angiotensin II (60 ng kg-1 min-1) in conscious, unrestrained mice infused concomitantly with the H2-receptor antagonist ranitidine (27.8 µg kg-1 min-1) or vehicle for 24 days. Heart rate and arterial blood pressure were recorded by indwelling arterial catheter. Resistance (mesenteric) and conductance (aortae) arteries were harvested for perfusion myography and isometric tension recordings by wire myography, respectively. Plasma was analyzed for aldosterone concentration. ANGII infusion resulted in elevated arterial blood pressure and while in vivo treatment with ranitidine reduced plasma aldosterone concentration, it did not reduce blood pressure. Ranitidine improved ex vivo endothelial function (acetylcholine 10-9 to 10-6 mol L-1) in mesenteric resistance arteries. This was abolished by ex vivo treatment with aldosterone (10-9 mol L-1, 1 h). In aortic segments, in vivo ranitidine treatment impaired relaxation. Activation of histamine H2 receptors promotes aldosterone secretion, does not affect arterial blood pressure, and protects endothelial function in conduit arteries but promotes endothelial dysfunction in resistance arteries during angiotensin II-mediated hypertension. Aldosterone contributes little to angiotensin II-induced hypertension in mice.
Collapse
Affiliation(s)
- Kasper B Assersen
- Cardiovascular and Renal Research, University of Southern Denmark, J. B. Winsløwsvej 21, Odense C, DK-5000, Odense, Denmark
| | - Boye L Jensen
- Cardiovascular and Renal Research, University of Southern Denmark, J. B. Winsløwsvej 21, Odense C, DK-5000, Odense, Denmark.
| | - Camilla Enggaard
- Cardiovascular and Renal Research, University of Southern Denmark, J. B. Winsløwsvej 21, Odense C, DK-5000, Odense, Denmark
| | - Paul M Vanhoutte
- State Key Laboratory of Pharmaceutical Biotechnology and Department of Pharmacology and Pharmacy, University of Hong Kong, Hong Kong, China
| | - Pernille B L Hansen
- Cardiovascular and Renal Research, University of Southern Denmark, J. B. Winsløwsvej 21, Odense C, DK-5000, Odense, Denmark
| |
Collapse
|
9
|
Eickelmann C, Lieder HR, Sturek M, Heusch G, Kleinbongard P. Differences in vasomotor function of mesenteric arteries between Ossabaw minipigs with predisposition to metabolic syndrome and Göttingen minipigs. Am J Physiol Heart Circ Physiol 2024; 326:H408-H417. [PMID: 38133620 DOI: 10.1152/ajpheart.00719.2023] [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: 11/14/2023] [Revised: 12/08/2023] [Accepted: 12/20/2023] [Indexed: 12/23/2023]
Abstract
Metabolic syndrome predisposes and contributes to the development and progression of atherosclerosis. The minipig strain "Ossabaw" is characterized by a predisposition to develop metabolic syndrome. We compared vasomotor function in Ossabaw minipigs before they developed their diseased phenotype to that of Göttingen minipigs without such genetic predisposition. Mesenteric arteries of adult Ossabaw and Göttingen minipigs were dissected postmortem and mounted on a myograph for isometric force measurements. Maximal vasoconstriction to potassium chloride (KClmax) was induced. Cumulative concentration-response curves were determined in response to norepinephrine. Endothelium-dependent (with carbachol) and endothelium-independent (with nitroprusside) vasodilation were analyzed after preconstriction by norepinephrine. In a bioinformatic analysis, variants/altered base pairs within genes associated with cardiovascular disease were analyzed. KClmax was similar between the minipig strains (15.6 ± 6.7 vs. 14.1 ± 3.4 ΔmN). Vasoconstriction in response to norepinephrine was more pronounced in Ossabaw than in Göttingen minipigs (increase of force to 143 ± 48 vs. 108 ± 38% of KClmax). Endothelium-dependent and endothelium-independent vasodilation were less pronounced in Ossabaw than in Göttingen minipigs (decrease of force to 46.4 ± 29.6 vs. 16.0 ± 18.4% and to 36.7 ± 25.2 vs. 2.3 ± 3.7% of norepinephrine-induced preconstriction). Vasomotor function was not different between the sexes. More altered base pairs/variants were identified in Ossabaw than in Göttingen minipigs for the exon encoding adrenoceptor-α1A. Vasomotor function in lean Ossabaw minipigs is shifted toward vasoconstriction and away from vasodilation in comparison with Göttingen minipigs, suggesting a genetic predisposition for vascular dysfunction and atherosclerosis in Ossabaw minipigs. Thus, Ossabaw minipigs may be a better model for human cardiovascular disease than Göttingen minipigs.NEW & NOTEWORTHY Animal models with a predisposition to metabolic syndrome and atherosclerosis are attracting growing interest for translational research, as they may better mimic the variability of patients with cardiovascular disease. In Ossabaw minipigs, with a polygenic predisposition to metabolic syndrome, but without the diseased phenotype, vasoconstriction is more and vasodilation is less pronounced in mesenteric arteries than in Göttingen minipigs. Ossabaw minipigs may be a more suitable model of human cardiovascular disease.
Collapse
Affiliation(s)
- Chantal Eickelmann
- Institute for Pathophysiology, West German Heart and Vascular Center, University of Essen Medical School, Essen, Germany
| | - Helmut Raphael Lieder
- Institute for Pathophysiology, West German Heart and Vascular Center, University of Essen Medical School, Essen, Germany
| | - Michael Sturek
- CorVus Biomedical, LLC, and CorVus Foundation, Inc., Crawfordsville, Indiana, United States
| | - Gerd Heusch
- Institute for Pathophysiology, West German Heart and Vascular Center, University of Essen Medical School, Essen, Germany
| | - Petra Kleinbongard
- Institute for Pathophysiology, West German Heart and Vascular Center, University of Essen Medical School, Essen, Germany
| |
Collapse
|
10
|
Gonçalves LT, Costa DTD, Rouver WDN, Santos RLD. Testosterone modulates vasodilation in mesenteric arteries of hypertensive rats. Life Sci 2024; 338:122405. [PMID: 38176584 DOI: 10.1016/j.lfs.2023.122405] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Revised: 12/22/2023] [Accepted: 12/28/2023] [Indexed: 01/06/2024]
Abstract
AIMS To evaluate the effects of testosterone on endothelium-dependent vasodilation and oxidative stress in mesenteric resistance arteries. MAIN METHODS Spontaneously hypertensive rats (SHR), aged 8 to 10 weeks, were divided into four groups: intact (SHAM), intact treated with testosterone (TTO; 3 mg/kg/day) via subcutaneous route (s.c.), intact treated with testosterone and anastrozole [aromatase enzyme inhibitor (TTO + ANA; 0.1 mg/kg/day, s.c.)] and intact treated with testosterone and finasteride [5 α-reductase enzyme inhibitor (TTO + FIN; 5 mg/kg/day, s.c.)] for four weeks. Concentration-response curves to acetylcholine (ACh, 0.1 nmol/L - 10 μmol/L) were obtained in mesenteric resistance arteries previously contracted with phenylephrine (PE, 3 μmol/L), before and after the use of selective inhibitors. Reactive oxygen species (ROS) levels were assessed in the vessels and the endothelium analyzed by scanning electron microscopy. KEY FINDINGS TTO group showed a lower participation of nitric oxide (NO), increased oxidative stress, and participation of prostanoids and endothelium-dependent hyperpolarization (EDH), possibly to maintain the vasodilator response. Lower participation of NO and prostanoids, combined to an increased participation of EDH, were observed in the TTO + ANA group, in addition to higher levels of ROS and altered endothelial morphology. The vasodilation to ACh was impaired in TTO + FIN, along increased participation of NO, reduction of prostanoids, and greater EDH-dependent vasodilation. SIGNIFICANCE Testosterone contributes to endothelial vasodilation by enhancing EDH through an increased participation of epoxyeicosatrienoic acids. While the decrease in NO appears to involve the participation of dihydrotestosterone, 17 β-estradiol seems to stimulate the action of the NO pathway and prostanoids.
Collapse
Affiliation(s)
- Leticia Tinoco Gonçalves
- Department of Physiological Sciences, Health Sciences Center, Universidade Federal do Espírito Santo (UFES), Vitoria, ES, Brazil
| | - Débora Tacon da Costa
- Department of Physiological Sciences, Health Sciences Center, Universidade Federal do Espírito Santo (UFES), Vitoria, ES, Brazil
| | - Wender do Nascimento Rouver
- Department of Physiological Sciences, Health Sciences Center, Universidade Federal do Espírito Santo (UFES), Vitoria, ES, Brazil
| | - Roger Lyrio Dos Santos
- Department of Physiological Sciences, Health Sciences Center, Universidade Federal do Espírito Santo (UFES), Vitoria, ES, Brazil.
| |
Collapse
|
11
|
Song R, Yadav P, Dangudubiyyam SV, Hofmann A, Mishra JS, Kumar S. Gestational intermittent hypoxia induces endothelial dysfunction and hypertension in pregnant rats: role of endothelin type B receptor†. Biol Reprod 2024; 110:185-197. [PMID: 37823770 DOI: 10.1093/biolre/ioad139] [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] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 08/29/2023] [Accepted: 10/09/2023] [Indexed: 10/13/2023] Open
Abstract
Obstructive sleep apnea is a recognized risk factor for gestational hypertension, yet the exact mechanism behind this association remains unclear. Here, we tested the hypothesis that intermittent hypoxia, a hallmark of obstructive sleep apnea, induces gestational hypertension through perturbed endothelin-1 signaling. Pregnant Sprague-Dawley rats were subjected to normoxia (control), mild intermittent hypoxia (10.5% O2), or severe intermittent hypoxia (6.5% O2) from gestational days 10-21. Blood pressure was monitored. Plasma was collected and mesenteric arteries were isolated for myograph and protein analyses. The mild and severe intermittent hypoxia groups demonstrated elevated blood pressure, reduced plasma nitrate/nitrite, and unchanged endothelin-1 levels compared to the control group. Western blot analysis revealed decreased expression of endothelin type B receptor and phosphorylated endothelial nitric oxide synthase, while the levels of endothelin type A receptor and total endothelial nitric oxide synthase remained unchanged following intermittent hypoxia exposure. The contractile responses to potassium chloride, phenylephrine, and endothelin-1 were unaffected in endothelium-denuded arteries from mild and severe intermittent hypoxia rats. However, mild and severe intermittent hypoxia rats exhibited impaired endothelium-dependent vasorelaxation responses to endothelin type B receptor agonist IRL-1620 and acetylcholine compared to controls. Endothelium denudation abolished IRL-1620-induced vasorelaxation, supporting the involvement of endothelium in endothelin type B receptor-mediated relaxation. Treatment with IRL-1620 during intermittent hypoxia exposure significantly attenuated intermittent hypoxia-induced hypertension in pregnant rats. This was associated with elevated circulating nitrate/nitrite levels, enhanced endothelin type B receptor expression, increased endothelial nitric oxide synthase activation, and improved vasodilation responses. Our data suggested that intermittent hypoxia exposure during gestation increases blood pressure in pregnant rats by suppressing endothelin type B receptor-mediated signaling, providing a molecular mechanism linking intermittent hypoxia and gestational hypertension.
Collapse
Affiliation(s)
- Ruolin Song
- Department of Comparative Biosciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Pankaj Yadav
- Department of Comparative Biosciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Sri Vidya Dangudubiyyam
- Department of Obstetrics and Gynecology, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Alissa Hofmann
- Department of Obstetrics and Gynecology, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Jay S Mishra
- Department of Comparative Biosciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Sathish Kumar
- Department of Comparative Biosciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin, USA
- Department of Obstetrics and Gynecology, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, Wisconsin, USA
| |
Collapse
|
12
|
Liu H, Li Y, Li M, Xie L, Li F, Pan R, Pei F. Follistatin-like 1 protects endothelial function in the spontaneously hypertensive rat by inhibition of endoplasmic reticulum stress through AMPK-dependent mechanism. Clin Exp Hypertens 2023; 45:2277654. [PMID: 37963199 DOI: 10.1080/10641963.2023.2277654] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Accepted: 10/26/2023] [Indexed: 11/16/2023]
Abstract
OBJECTIVE Endothelial dysfunction is a critical initiating factor in the development of hypertension and related complications. Follistatin-like 1 (FSTL1) can promote endothelial cell function and stimulates revascularization in response to ischemic insult. However, it is unclear whether FSTL1 has an effect on ameliorating endothelial dysfunction in spontaneously hypertensive rats (SHRs). METHODS Wistar Kyoto (WKY) and SHRs were treated with a tail vein injection of vehicle (1 mL/day) or recombinant FSTL1 (100 μg/kg body weight/day) for 4 weeks. Blood pressure was measured by tail-cuff plethysmograph, and vascular reactivity in mesenteric arteries was measured using wire myography. RESULTS We found that treatment with FSTL1 reversed impaired endothelium-dependent relaxation (EDR) in mesenteric arteries and lowered blood pressure of SHRs. Decreased AMP-activated protein kinase (AMPK) phosphorylation, elevated endoplasmic reticulum (ER) stress markers, increased reactive oxygen species (ROS), and reduction of nitric oxide (NO) production in mesenteric arteries of SHRs were also reversed by FSTL1 treatment. Ex vivo treatment with FSTL1 improved the impaired EDR in mesenteric arteries from SHRs and reversed tunicamycin (ER stress inducer)-induced ER stress and the impairment of EDR in mesenteric arteries from WKY rats. The effects of FSTL1 were abolished by cotreatment of compound C (AMPK inhibitor). CONCLUSIONS These results suggest that FSTL1 prevents endothelial dysfunction in mesenteric arteries of SHRs through inhibiting ER stress and ROS and increasing NO production via activation of AMPK signaling.
Collapse
Affiliation(s)
- Hanwen Liu
- Department of Neurosurgery, Ganzhou Hospital of Guangdong Provincial People's Hospital, Ganzhou Municipal Hospital, Ganzhou, Jiangxi, China
| | - Yanwen Li
- Department of Neurosurgery, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
| | - Maogang Li
- Department of Neurosurgery, Ganzhou Hospital of Guangdong Provincial People's Hospital, Ganzhou Municipal Hospital, Ganzhou, Jiangxi, China
| | - Linghai Xie
- Department of Neurosurgery, Ganzhou Hospital of Guangdong Provincial People's Hospital, Ganzhou Municipal Hospital, Ganzhou, Jiangxi, China
| | - Feng Li
- Department of Neurosurgery, Ganzhou Hospital of Guangdong Provincial People's Hospital, Ganzhou Municipal Hospital, Ganzhou, Jiangxi, China
| | - Runmei Pan
- Operating room, Ganzhou Hospital of Guangdong Provincial People's Hospital, Ganzhou Municipal Hospital, Ganzhou, China
| | - Fang Pei
- Department of Cardiology, Ganzhou Hospital of Guangdong Provincial People's Hospital, Ganzhou Municipal Hospital, Ganzhou, Jiangxi, China
| |
Collapse
|
13
|
Rognant S, Baldwin SN, Pritchard HAT, Greenstein A, Calloe K, Aalkjaer C, Jepps TA. Acute, pro-contractile effects of prorenin on rat mesenteric arteries. FASEB J 2023; 37:e23282. [PMID: 37994700 DOI: 10.1096/fj.202301480] [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] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 10/16/2023] [Indexed: 11/24/2023]
Abstract
Prorenin and the prorenin receptor ((P)RR) are important, yet controversial, members of the renin-angiotensin-aldosterone system. The ((P)RR) is expressed throughout the body, including the vasculature, however, the direct effect of prorenin on arterial contractility is yet to be determined. Within rat mesenteric arteries, immunostaining and proximity ligation assays were used to determine the interacting partners of (P)RR in freshly isolated vascular smooth muscle cells (VSMCs). Wire myography examined the functional effect of prorenin. Simultaneous changes in [Ca2+ ]i and force were recorded in arteries loaded with Fura-2AM. Spontaneously transient outward currents were recorded via perforated whole-cell patch-clamp configuration in freshly isolated VSMCs. We found that the (P)RR is located within a distance of less than 40 nm from the V-ATPase, caveolin-1, ryanodine receptors, and large conductance Ca2+ -activated K+ channels (BKCa ) in VSMCs. [Ca2+ ]i imaging and isometric tension recordings indicate that 1 nM prorenin enhanced α1-adrenoreceptor-mediated contraction, associated with an increased number of Ca2+ waves, independent of voltage-gated Ca2+ channels activation. Incubation of VSMCs with 1 nM prorenin decreased the amplitude and frequency of spontaneously transient outward currents and attenuated BKCa -mediated relaxation. Inhibition of the V-ATPase with 100 nM bafilomycin prevented prorenin-mediated inhibition of BKCa -derived relaxation. Renin (1 nM) had no effect on BKCa -mediated relaxation. In conclusion, prorenin enhances arterial contractility by inhibition of BKCa and increasing intracellular Ca2+ release. It is likely that this effect is mediated through a local shift in pH upon activation of the (P)RR and stimulation of the V-ATPase.
Collapse
Affiliation(s)
- Salomé Rognant
- Department of Biomedical Sciences, University of Copenhagen, Copenhagen N, Denmark
| | - Samuel N Baldwin
- Department of Biomedical Sciences, University of Copenhagen, Copenhagen N, Denmark
| | - Harry A T Pritchard
- Division of Cardiovascular Sciences, Faculty of Biology, Medicine and Health, Manchester University Teaching Hospitals NHS Foundation Trust, University of Manchester, Manchester, UK
- Geoffrey Jefferson Brain Research Centre, The Manchester Academic Health Science Centre, Northern Care Alliance NHS Foundation Trust, University of Manchester, Manchester, UK
| | - Adam Greenstein
- Division of Cardiovascular Sciences, Faculty of Biology, Medicine and Health, Manchester University Teaching Hospitals NHS Foundation Trust, University of Manchester, Manchester, UK
- Geoffrey Jefferson Brain Research Centre, The Manchester Academic Health Science Centre, Northern Care Alliance NHS Foundation Trust, University of Manchester, Manchester, UK
| | - Kirstine Calloe
- Section for Pathobiological Sciences, Department of Veterinary and Animal Sciences, University of Copenhagen, Frederiksberg C, Denmark
| | | | - Thomas A Jepps
- Department of Biomedical Sciences, University of Copenhagen, Copenhagen N, Denmark
| |
Collapse
|
14
|
Radhakrishnan J, Valakkada J, Ayyappan A, Bellala PK. Corkscrew Mesenteric Arteries and Tortuous Descending Aorta in Autosomal Recessive Cutis Laxa. Radiol Cardiothorac Imaging 2023; 5:e230138. [PMID: 38166335 DOI: 10.1148/ryct.230138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2024]
Affiliation(s)
- Jayakrishnan Radhakrishnan
- From the Department of Imaging Sciences and Interventional Radiology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum 695011, India
| | - Jineesh Valakkada
- From the Department of Imaging Sciences and Interventional Radiology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum 695011, India
| | - Anoop Ayyappan
- From the Department of Imaging Sciences and Interventional Radiology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum 695011, India
| | - Pavan Kumar Bellala
- From the Department of Imaging Sciences and Interventional Radiology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum 695011, India
| |
Collapse
|
15
|
Valovič P, Behuliak M, Vaněčková I, Zicha J. Impaired vascular β-adrenergic relaxation in spontaneously hypertensive rats: The differences between conduit and resistance arteries. Eur J Pharmacol 2023; 958:176045. [PMID: 37708986 DOI: 10.1016/j.ejphar.2023.176045] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 09/01/2023] [Accepted: 09/11/2023] [Indexed: 09/16/2023]
Abstract
It was suggested that impaired β-adrenergic relaxation in spontaneously hypertensive rats (SHR) might contribute to their high blood pressure (BP). Our study was focused on isoprenaline-induced dilatation of conduit femoral or resistance mesenteric arteries and on isoprenaline-induced BP reduction in SHR and Wistar-Kyoto rats (WKY). We confirmed decreased β-adrenergic relaxation of SHR femoral arteries due to the absence of its endothelium-independent component, whereas endothelium-dependent component of β-adrenergic smooth muscle relaxation was similar in both strains. Conversely, isoprenaline-induced relaxation of resistance mesenteric arteries was similar in both strains and this was true for endothelium-dependent and endothelium-independent components. We observed moderately reduced sensitivity of SHR mesenteric arteries to salmeterol (β2-adrenergic agonist) and this strain difference disappeared after endothelium removal. However, there was no difference in mesenteric arteries relaxation by dobutamine (β1-adrenergic agonist) which was independent of endothelium. The increasing isoprenaline doses elicited similar BP decrease in both rat strains, although BP sensitivity to isoprenaline was slightly decreased in SHR. The blockade of cyclooxygenase (indomethacin) and NO synthase (L-NAME) further reduced BP sensitivity to isoprenaline in SHR. On the other hand, salmeterol elicited similar BP decrease in both strains and the blockade of cyclooxygenase and NO synthase increased BP sensitivity to salmeterol in SHR as compared to WKY. In conclusion, attenuated β-adrenergic vasodilatation of conduit arteries of SHR but similar β-adrenergic relaxation of resistance mesenteric arteries from WKY and SHR and their similar BP response to β-adrenergic agonists do not support major role of altered β-adrenergic vasodilatation for high BP in genetic hypertension.
Collapse
Affiliation(s)
- Pavol Valovič
- Institute of Physiology, Czech Academy of Sciences, Prague, Czech Republic
| | - Michal Behuliak
- Institute of Physiology, Czech Academy of Sciences, Prague, Czech Republic
| | - Ivana Vaněčková
- Institute of Physiology, Czech Academy of Sciences, Prague, Czech Republic
| | - Josef Zicha
- Institute of Physiology, Czech Academy of Sciences, Prague, Czech Republic.
| |
Collapse
|
16
|
Sun C, Zhang L, Zhang M, Wang J, Rong S, Lu W, Dong H. Zinc pyrithione induces endothelium-dependent hyperpolarization-mediated mesenteric vasorelaxation in healthy and colitic mice. Biochem Pharmacol 2023; 217:115828. [PMID: 37774954 DOI: 10.1016/j.bcp.2023.115828] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Revised: 09/21/2023] [Accepted: 09/22/2023] [Indexed: 10/01/2023]
Abstract
BACKGROUND Although Zinc pyrithione (ZPT) could lower blood pressure by inducing vasorelaxation, it is unclear if it is able to induce vasorelaxation of mesenteric arterioles in health and ulcerative colitis (UC) to exert anti-colitic action. METHODS The vasorelaxation of the second-order branch of the mesenteric artery from wide type (WT) mice, TRPV1-/-(KO) mice, and TRPV4-/-(KO) mice was determined using a Mulvany-style wire myograph. Calcium imaging and patch clamp were applied to analyze the actions of ZPT in human vascular endothelial cells. Mouse model of UC was used to evaluate the anti-colitic action of ZPT. RESULTS ZPT dose-dependently induced mesenteric vasorelaxation predominately through endothelium-dependent hyperpolarization (EDH), which could be attenuated by intracellular Zn2+ and Ca2+ chelators TPEN and BAPTA-AM. The ZPT/EDH-mediated vasorelaxation via TRPV1, TRPV4 and TRPA1 channels was verified by a combination of selective pharmacological inhibitors and TRPV1-KO and TRPV4-KO mice. Moreover. ZPT induced Ca2+ entry via vascular endothelial TRPV1/4 and TRPA1 channels and enhanced membrane non-selective currents through these channels. Notably, ZPT exerted anti-colitic effects by rescuing the impaired acetylcholine (ACh)-induced mesenteric vasorelaxation in colitic mice. CONCLUSIONS ZPT/Zn2+ induces EDH-mediated mesenteric vasorelaxation through activating endothelial multiple TRPV1/4 and TPPA1 channels in health, and rescues the impaired ACh-induced vasorelaxation to exert anti-colitic action. Our study may open a new avenue of potential vessel-specific targeted therapy for UC.
Collapse
Affiliation(s)
- Chensijin Sun
- Department of Pharmacology, School of Pharmacy, Qingdao University Medical College, #1 Ningde Road, Qingdao 266073, China
| | - Luyun Zhang
- Department of Pharmacology, School of Pharmacy, Qingdao University Medical College, #1 Ningde Road, Qingdao 266073, China; Department of Pediatric Intensive Care Unit, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
| | - Mengting Zhang
- Department of Pharmacology, School of Pharmacy, Qingdao University Medical College, #1 Ningde Road, Qingdao 266073, China
| | - Jianxin Wang
- Department of Pharmacology, School of Pharmacy, Qingdao University Medical College, #1 Ningde Road, Qingdao 266073, China
| | - Shaoya Rong
- Department of Pharmacology, School of Pharmacy, Qingdao University Medical College, #1 Ningde Road, Qingdao 266073, China
| | - Wei Lu
- Department of Pharmacology, School of Pharmacy, Qingdao University Medical College, #1 Ningde Road, Qingdao 266073, China.
| | - Hui Dong
- Department of Pharmacology, School of Pharmacy, Qingdao University Medical College, #1 Ningde Road, Qingdao 266073, China.
| |
Collapse
|
17
|
Wu H, Tang B, Zhang H, Ran K, Chen Y, Luo H. Endovascular treatment of systematic isolated mesenteric artery dissection with a patent false lumen: Bare stents alone versus stent-assisted coiling. Sci Prog 2023; 106:368504231214959. [PMID: 38116780 PMCID: PMC10664444 DOI: 10.1177/00368504231214959] [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] [Subscribe] [Scholar Register] [Indexed: 12/21/2023]
Abstract
OBJECTIVES Bare stent treatment and bare stent-assisted coiling treatment have not been directly compared in symptomatic isolated superior mesenteric artery dissection with a patent false lumen. Thus, we compared the early and mid-term outcomes of bare stent treatment and bare stent-assisted coiling treatment to determine the most effective remedy for patients with this condition. METHODS Consecutive patients diagnosed with systematic isolated superior mesenteric artery dissection with a patent false lumen admitted to the study hospital between January 2016 and December 2021 were enrolled in this retrospective study. Their demographic data, clinical findings, treatment options, early outcomes, and follow-up results were analyzed. RESULTS A total of 85 patients (83 men) were included. 34.1% (n = 29) adopted bare stent treatment and 65.9% (n = 56) underwent bare stent-assisted coiling treatment. The symptoms were relieved in all patients (100%) with bare stent treatment and bare stent-assisted coiling treatment. There was no significant difference in the length of hospital stay between the two endovascular treatments (p = 0.354). The cumulative complete remodeling rate was 100% in bare stent-assisted coiling treatment vs. 70.4% in bare stent treatment (p < 0.0001). The prevalence of adverse events for abdominal pain recurrence (none in BST or bare stent-assisted coiling treatment), and formation of the aneurysm (two in bare stent treatment, and none in bare stent-assisted coiling treatment) showed no significant difference at follow-up. CONCLUSION Both bare stent treatment and bare stent-assisted coiling treatment for symptomatic isolated superior mesenteric artery dissection with a patent false lumen have the same satisfying early outcome. In the midterm follow-up, bare stent-assisted coiling treatment has the higher cumulative complete remodeling rate which could be prioritized to treat this condition.
Collapse
Affiliation(s)
- Huan Wu
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Bo Tang
- Department of Vascular Surgery, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Haolong Zhang
- Department of Vascular Surgery, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Kun Ran
- Department of Vascular Surgery, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Yikuan Chen
- Department of Vascular Surgery, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Hailong Luo
- Department of Vascular Surgery, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| |
Collapse
|
18
|
Lu C, Zhang L, Chen X, Wan H, Dong H. Cl - induces endothelium-dependent mesenteric arteriolar vasorelaxation through the NKCC1/TRPV4/NCX axis. Life Sci 2023; 330:121942. [PMID: 37451399 DOI: 10.1016/j.lfs.2023.121942] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 07/10/2023] [Accepted: 07/11/2023] [Indexed: 07/18/2023]
Abstract
AIMS Although absorbed NaCl increases intestinal blood flow to facilitate absorption and transportation, it is unclear if it can directly mediate mesenteric arterial relaxation. We aimed to investigate and test our hypothesis that Cl- induces mesenteric arterial vasorelaxation via endothelium-dependent hyperpolarization (EDH). MAIN METHODS We used wire myograph to study NaCl-induced vasorelaxation of mesenteric arteries isolated from mice. Cl-, Ca2+ and K+ imaging was performed in human vascular endothelial cells pre-treated with pharmacological agents. KEY FINDINGS The Cl- concentration-dependently induced vasorelaxation of mesenteric arteries likely through EDH. The Cl--induced vasorelaxation was attenuated in TRPV4 KO mice and inhibited by selective blockers of Na+-K+-2Cl- cotransporter 1 (NKCC1) (bumetanide, 10 μM), transient receptor potential vanilloid 4 (TRPV4) (RN-1734, 40 μM), and small conductance Ca2+-activated K+ channels (SKCa) (apamin, 3 μM)/ intermediate conductance Ca2+-activated K+ channels (IKCa) (TRAM-34, 10 μM) and myoendothelial gap junction (18α-glycyrrhetinic acid, 10 μM), but enhanced by a selective activator of IKCa/SKCa (SKA-31, 0.3 μM). Cl- decreased intracellular K+ concentrations in endothelial cells, which was reversed by apamin (200 nM) plus TRAM-34 (500 nM). Extracellular Cl- raised intracellular Cl- concentrations in endothelial cells, which was attenuated by bumetanide (10 μM). Finally, Cl- induced a transient Ca2+ signaling via TRPV4 in endothelial cells, which became sustained when the Ca2+ exit mode of Na+-Ca2+ exchanger (NCX) was blocked. SIGNIFICANCE Cl- induces a pure EDH-mediated vasorelaxation of mesenteric arteries through activation of endothelial NKCC1/TRPV4/NCX axis. We have provided a novel insight into the role of Cl--induced vasorelaxation via EDH mechanism.
Collapse
Affiliation(s)
- Cheng Lu
- Department of Pharmacology, School of Pharmacy, Qingdao University Medical College, #1 Ningde Road, Qingdao 266073, China; Department of Gastroenterology, Xinqiao Hospital, Army Medical University, Chongqing 400037, China
| | - Luyun Zhang
- Department of Pediatric Intensive Care Unit, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
| | - Xiongying Chen
- Department of Pediatric Intensive Care Unit, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
| | - Hanxing Wan
- Department of Gastroenterology, Xinqiao Hospital, Army Medical University, Chongqing 400037, China.
| | - Hui Dong
- Department of Pharmacology, School of Pharmacy, Qingdao University Medical College, #1 Ningde Road, Qingdao 266073, China; Department of Gastroenterology, Xinqiao Hospital, Army Medical University, Chongqing 400037, China.
| |
Collapse
|
19
|
Oh EY, Haam CE, Choi S, Byeon S, Choi SK, Lee YH. Ezetimibe Induces Vasodilation in Rat Mesenteric Resistance Arteries through Inhibition of Extracellular Ca 2+ Influx. Int J Mol Sci 2023; 24:13992. [PMID: 37762296 PMCID: PMC10531054 DOI: 10.3390/ijms241813992] [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] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 09/07/2023] [Accepted: 09/11/2023] [Indexed: 09/29/2023] Open
Abstract
Ezetimibe is a lipid-lowering agent that selectively inhibits cholesterol absorption by binding to the Niemann-Pick C1-like 1 (NPC1L1) protein. Although it is well known that administration of ezetimibe in hypercholesterolemia patients reduces the risk of cardiovascular events through attenuation of atherosclerosis, studies on the direct effect of ezetimibe on vascular function are not sufficient. The aim of the present study was to investigate the vascular effects of ezetimibe in rat mesenteric arteries. In the present study, 12-week-old male Sprague Dawley rats were used. After the rats were sacrificed, the second branches of the mesenteric arteries were isolated and cut into 2-3 mm segments and mounted in a multi-wire myography system to measure isometric tension. Ezetimibe reduced vasoconstriction induced by U46619 (500 nM) in endothelium-intact and endothelium-denuded arteries. Ezetimibe-induced vasodilation was not affected by the endothelial nitric oxide synthase (eNOS) inhibitor Nω-Nitro-L-arginine (L-NNA, 300 μM) or the non-selective potassium channel blocker, tetraethylammonium (TEA, 10 mM). Moreover, ezetimibe also completely blocked the contraction induced by an increase in external calcium concentration. Ezetimibe significantly reduced vascular contraction induced by L-type Ca2+ channel activator (Bay K 8644, 30 nM). Treatment with ezetimibe decreased the phosphorylation level of 20 kDa myosin light chain (MLC20) in vascular smooth muscle cells. In the present study, we found that ezetimibe has a significant vasodilatory effect in rat mesenteric resistance arteries. These results suggest that ezetimibe may have beneficial cardiovascular effects beyond its cholesterol-lowering properties.
Collapse
Affiliation(s)
| | | | | | | | - Soo-Kyoung Choi
- Department of Physiology, Yonsei University College of Medicine, 50 Yonseiro, Seodaemun-gu, Seoul 03722, Republic of Korea; (E.Y.O.); (C.E.H.); (S.C.); (S.B.)
| | - Young-Ho Lee
- Department of Physiology, Yonsei University College of Medicine, 50 Yonseiro, Seodaemun-gu, Seoul 03722, Republic of Korea; (E.Y.O.); (C.E.H.); (S.C.); (S.B.)
| |
Collapse
|
20
|
Thurner A, Peter D, Lichthardt S, Augustin AM, Flemming S, Kickuth R. Intravascular Lithotripsy for Treatment of Calcified Stenotic Mesenteric Arteries in Patients with Chronic Mesenteric Ischaemia: a Single Centre Experience. Eur J Vasc Endovasc Surg 2023; 66:142-143. [PMID: 37030410 DOI: 10.1016/j.ejvs.2023.04.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 03/26/2023] [Accepted: 04/03/2023] [Indexed: 04/10/2023]
Affiliation(s)
- Annette Thurner
- Department of Diagnostic and Interventional Radiology, University Hospital Wuerzburg, Wuerzburg, Germany.
| | - Dominik Peter
- Department of General, Visceral, Transplantation, Vascular and Paediatric Surgery, University Hospital Wuerzburg, Wuerzburg, Germany
| | - Sven Lichthardt
- Department of General, Visceral, Transplantation, Vascular and Paediatric Surgery, University Hospital Wuerzburg, Wuerzburg, Germany
| | - Anne Marie Augustin
- Department of Diagnostic and Interventional Radiology, University Hospital Wuerzburg, Wuerzburg, Germany
| | - Sven Flemming
- Department of General, Visceral, Transplantation, Vascular and Paediatric Surgery, University Hospital Wuerzburg, Wuerzburg, Germany
| | - Ralph Kickuth
- Department of Diagnostic and Interventional Radiology, University Hospital Wuerzburg, Wuerzburg, Germany
| |
Collapse
|
21
|
Garzelli L, Paulatto L, Corcos O, Castier Y, Ronot M, Ben Abdallah I. Catheter-directed thrombolysis using recombinant tissue plasminogen activator for the treatment of isolated mesenteric artery dissection with acute mesenteric ischemia. Diagn Interv Imaging 2023; 104:384-385. [PMID: 37062660 DOI: 10.1016/j.diii.2023.04.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 04/03/2023] [Accepted: 04/04/2023] [Indexed: 04/18/2023]
Affiliation(s)
- Lorenzo Garzelli
- Université Paris Cité, France & Department of Radiology, Hôpital Beaujon, APHP.Nord, 92110 Clichy, France; Université des Antilles, France & Department of Radiology, Centre Hospitalier de Cayenne, 97306 Cayenne, France.
| | - Luisa Paulatto
- Université Paris Cité, France & Department of Radiology, Hôpital Beaujon, APHP.Nord, 92110 Clichy, France
| | - Olivier Corcos
- Intestinal Stroke Center, Department of Gastroenterology, MICI et Insuffisance intestinale, Hôpital Beaujon, APHP.Nord, 92110 Clichy, France
| | - Yves Castier
- Université Paris Cité, France & Department of Vascular Surgery, Hôpital Bichat, APHP.Nord, 75018 Paris, France
| | - Maxime Ronot
- Université Paris Cité, France & Department of Radiology, Hôpital Beaujon, APHP.Nord, 92110 Clichy, France
| | - Iannis Ben Abdallah
- Université Paris Cité, France & Department of Vascular Surgery, Hôpital Bichat, APHP.Nord, 75018 Paris, France
| |
Collapse
|
22
|
Jelinic M, Jackson KL, O'Sullivan K, Singh J, Giddy T, Deo M, Parry LJ, Ritchie RH, Woodman OL, Head GA, Leo CH, Qin CX. Endothelium-dependent relaxation is impaired in Schlager hypertensive (BPH/2J) mice by region-specific mechanisms in conductance and resistance arteries. Life Sci 2023; 320:121542. [PMID: 36871935 DOI: 10.1016/j.lfs.2023.121542] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 02/21/2023] [Accepted: 02/27/2023] [Indexed: 03/07/2023]
Abstract
AIMS Endothelial dysfunction and arterial stiffness are hallmarks of hypertension, and major risk factors for cardiovascular disease. BPH/2J (Schlager) mice are a genetic model of spontaneous hypertension, but little is known about the vascular pathophysiology of these mice and the region-specific differences between vascular beds. Therefore, this study compared the vascular function and structure of large conductance (aorta and femoral) and resistance (mesenteric) arteries of BPH/2J mice with their normotensive BPN/2J counterparts. MAIN METHODS Blood pressure was measured in BPH/2J and BPN/3J mice via pre-implanted radiotelemetry probes. At endpoint, vascular function and passive mechanical wall properties were assessed using wire and pressure myography, qPCR and histology. KEY FINDINGS Mean arterial blood pressure was elevated in BPH/2J mice compared to BPN/3J controls. Endothelium-dependent relaxation to acetylcholine was attenuated in both the aorta and mesenteric arteries of BPH/2J mice, but through different mechanisms. In the aorta, hypertension reduced the contribution of prostanoids. Conversely, in the mesenteric arteries, hypertension reduced the contribution of both nitric oxide and endothelium-dependent hyperpolarization. Hypertension reduced volume compliance in both femoral and mesenteric arteries, but hypertrophic inward remodelling was only observed in the mesenteric arteries of BPH/2J mice. SIGNIFICANCE This is the first comprehensive investigation of vascular function and structural remodelling in BPH/2J mice. Overall, hypertensive BPH/2J mice exhibited endothelial dysfunction and adverse vascular remodelling in the macro- and microvasculature, underpinned by distinct region-specific mechanisms. This highlights BPH/2J mice as a highly suitable model for evaluating novel therapeutics to treat hypertension-associated vascular dysfunction.
Collapse
Affiliation(s)
- Maria Jelinic
- Centre for Cardiovascular Biology and Disease Research, Department of Microbiology, Anatomy, Physiology & Pharmacology, La Trobe University, Bundoora, VIC, Australia; School of BioSciences, The University of Melbourne, Parkville, VIC, Australia
| | - Kristy L Jackson
- Baker Heart and Diabetes Research Institute, Melbourne, VIC, Australia; Faculty of Pharmacy and Pharmaceutical Sciences, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, Australia
| | - Kelly O'Sullivan
- School of BioSciences, The University of Melbourne, Parkville, VIC, Australia
| | - Jaideep Singh
- Baker Heart and Diabetes Research Institute, Melbourne, VIC, Australia; Faculty of Pharmacy and Pharmaceutical Sciences, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, Australia
| | - Thomas Giddy
- Baker Heart and Diabetes Research Institute, Melbourne, VIC, Australia
| | - Minh Deo
- Baker Heart and Diabetes Research Institute, Melbourne, VIC, Australia; Faculty of Pharmacy and Pharmaceutical Sciences, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, Australia
| | - Laura J Parry
- School of BioSciences, The University of Melbourne, Parkville, VIC, Australia; School of Biological Sciences, The University of Adelaide, Adelaide, SA, Australia
| | - Rebecca H Ritchie
- Baker Heart and Diabetes Research Institute, Melbourne, VIC, Australia; Faculty of Pharmacy and Pharmaceutical Sciences, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, Australia
| | - Owen L Woodman
- Faculty of Pharmacy and Pharmaceutical Sciences, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, Australia
| | - Geoffrey A Head
- Baker Heart and Diabetes Research Institute, Melbourne, VIC, Australia
| | - Chen Huei Leo
- School of BioSciences, The University of Melbourne, Parkville, VIC, Australia; Faculty of Pharmacy and Pharmaceutical Sciences, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, Australia; Science, Math and Technology, Singapore University of Technology & Design, Singapore.
| | - Cheng Xue Qin
- Baker Heart and Diabetes Research Institute, Melbourne, VIC, Australia; Faculty of Pharmacy and Pharmaceutical Sciences, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, Australia.
| |
Collapse
|
23
|
Cupitra NI, León-Rodríguez J, Calderón JC, Narvaez-Sanchez R. The pig is a better model than the rabbit or rat for studying the pathophysiology of human mesenteric arteries. Microvasc Res 2023; 147:104494. [PMID: 36731768 DOI: 10.1016/j.mvr.2023.104494] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 01/11/2023] [Accepted: 01/25/2023] [Indexed: 02/01/2023]
Abstract
AIMS Animal models are essential to investigate cardiovascular pathophysiology and pharmacology, but phylogenetic diversity makes it necessary to identify the model with vasculature most similar to that of humans. METHODS AND RESULTS In this study, we compared the mesenteric arteries of humans, pigs, rabbits and rats in terms of the i) evolutionary changes in the amino acid sequences of α1 and β2 adrenoceptors; M1, M2, and M3 muscarinic receptors; and bradykinin (BKR) and thromboxane-prostanoid (TP) receptors, through bioinformatics tools; ii) expression of α1, β2, M1, M3 and TP receptors in each tunica, as assessed by immunofluorescence; and iii) reactivity to receptor-dependent and independent contractile agonists and relaxants, by performing organ bath assays. Phylogenetically, pigs showed the highest degree of evolutionary closeness to humans for all receptors, and with the exception of BKR, rabbits presented the greatest evolutionary difference compared to humans, pigs and rats. The expression of the measured receptors in the three vascular tunica in pigs was most similar to that in humans. Using a one-way ANOVA to determine the differences in vascular reactivity, we found that the reactivity of pigs was the most similar to that of humans in terms of sensitivity (pD2) and maximum effect of vascular reactivity (Emax) to KCl, phenylephrine, isoproterenol and carbachol. CONCLUSIONS The pig is a better vascular model than the rabbit or rat to extrapolate results to human mesenteric arteries. Comparative vascular studies have implications for understanding the evolutionary history of different species. TRANSLATIONAL PERSPECTIVE The presented findings are useful for identifying an animal model with a vasculature that is similar to that of humans. This information is important to extrapolate, with greater precision, the findings in arterial pathophysiology or pharmacology from animal models to the healthy or diseased human being.
Collapse
Affiliation(s)
- Nelson Ivan Cupitra
- Physiology and Biochemistry Research Group-PHYSIS, Faculty of Medicine, University of Antioquia, Medellin, Colombia
| | - Jimmy León-Rodríguez
- University Hospital "IPS Universitaria" - Trauma and Surgery Research Group, Faculty of Medicine, University of Antioquia, Medellin, Colombia
| | - Juan C Calderón
- Physiology and Biochemistry Research Group-PHYSIS, Faculty of Medicine, University of Antioquia, Medellin, Colombia
| | - Raul Narvaez-Sanchez
- Physiology and Biochemistry Research Group-PHYSIS, Faculty of Medicine, University of Antioquia, Medellin, Colombia.
| |
Collapse
|
24
|
Simplicio JA, Dourado TMH, Awata WMC, do Vale GT, Dias VR, Barros PR, de Martinis BS, Tostes RC, Tirapelli CR. Ethanol consumption favors pro-contractile phenotype of perivascular adipose tissue: A role for interleukin-6. Life Sci 2023; 319:121526. [PMID: 36828130 DOI: 10.1016/j.lfs.2023.121526] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [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: 11/28/2022] [Revised: 02/17/2023] [Accepted: 02/20/2023] [Indexed: 02/24/2023]
Abstract
Perivascular adipose tissue (PVAT) exerts anticontractile effect, but under non-physiological conditions it may contribute to vascular dysfunction by releasing pro-inflammatory cytokines. Since PVAT is an important source of interleukin (IL)-6, we evaluated whether this cytokine would contribute to ethanol-induced vascular dysfunction. With this purpose, male C57BL/6 wild-type (WT) or IL-6-deficient mice (IL-6-/-) were treated with ethanol for 12 weeks. Increased blood pressure was evidenced after 4 and 6 weeks of treatment with ethanol in WT and IL-6-/- mice, respectively. In WT mice, ethanol increased plasma and PVAT levels of IL-6. Ethanol favoured pro-contractile phenotype of PVAT in mesenteric arteries from WT, but not IL-6-deficient mice. Functional studies showed that tiron [(a scavenger of superoxide (O2-)] reversed the pro-contractile effect of PVAT in mesenteric arteries from ethanol-treated mice. Ethanol increased the levels of O2- in PVAT from WT mice. Ethanol-induced increase in O2- generation was higher in arteries with PVAT from WT mice when compared to IL-6-deficient mice. Treatment with ethanol augmented myeloperoxidase activity in the mesenteric arterial bed (MAB; with or without PVAT) from WT, but not IL-6-deficient mice. In conclusion, IL-6 contributes to the pro-contractile effect of PVAT by a mechanism that involves increase in ROS generation. Additionally, IL-6 mediates intravascular recruitment of neutrophils in response to ethanol and plays a role in the early stages of ethanol-induced hypertension. Collectively, our findings provide novel evidence for a role of IL-6 in the vascular dysfunction induced by ethanol.
Collapse
Affiliation(s)
- Janaina A Simplicio
- Programa de Pós-Graduação em Farmacologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo (USP), Ribeirão Preto, São Paulo, Brazil; Laboratório de Farmacologia, Escola de Enfermagem de Ribeirão Preto, USP, Ribeirão Preto, São Paulo, Brazil
| | - Thales M H Dourado
- Programa de Pós-Graduação em Farmacologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo (USP), Ribeirão Preto, São Paulo, Brazil; Laboratório de Farmacologia, Escola de Enfermagem de Ribeirão Preto, USP, Ribeirão Preto, São Paulo, Brazil
| | - Wanessa M C Awata
- Programa de Pós-Graduação em Farmacologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo (USP), Ribeirão Preto, São Paulo, Brazil; Laboratório de Farmacologia, Escola de Enfermagem de Ribeirão Preto, USP, Ribeirão Preto, São Paulo, Brazil
| | - Gabriel T do Vale
- Programa de Pós-Graduação em Farmacologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo (USP), Ribeirão Preto, São Paulo, Brazil; Laboratório de Farmacologia, Escola de Enfermagem de Ribeirão Preto, USP, Ribeirão Preto, São Paulo, Brazil
| | - Vinícius R Dias
- Laboratório de Farmacologia, Escola de Enfermagem de Ribeirão Preto, USP, Ribeirão Preto, São Paulo, Brazil
| | - Paula R Barros
- Programa de Pós-Graduação em Farmacologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo (USP), Ribeirão Preto, São Paulo, Brazil
| | - Bruno S de Martinis
- Departamento de Química, Faculdade de Ciências e Letras de Ribeirão Preto, USP, Ribeirão Preto, São Paulo, Brazil
| | - Rita C Tostes
- Programa de Pós-Graduação em Farmacologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo (USP), Ribeirão Preto, São Paulo, Brazil
| | - Carlos R Tirapelli
- Laboratório de Farmacologia, Escola de Enfermagem de Ribeirão Preto, USP, Ribeirão Preto, São Paulo, Brazil.
| |
Collapse
|
25
|
Anderson JR, Morin EE, Brayer KJ, Salbato S, Gonzalez Bosc LV, Kanagy NL, Naik JS. Single-cell transcriptomic heterogeneity between conduit and resistance mesenteric arteries in rats. Physiol Genomics 2023; 55:179-193. [PMID: 36912534 PMCID: PMC10085562 DOI: 10.1152/physiolgenomics.00126.2022] [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] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 02/03/2023] [Accepted: 03/08/2023] [Indexed: 03/14/2023] Open
Abstract
The endothelium contains morphologically similar cells throughout the vasculature, but individual cells along the length of a single vascular tree or in different regional circulations function dissimilarly. When observations made in large arteries are extrapolated to explain the function of endothelial cells (ECs) in the resistance vasculature, only a fraction of these observations are consistent between artery sizes. To what extent endothelial (EC) and vascular smooth muscle cells (VSMCs) from different arteriolar segments of the same tissue differ phenotypically at the single-cell level remains unknown. Therefore, single-cell RNA-seq (10x Genomics) was performed using a 10X Genomics Chromium system. Cells were enzymatically digested from large (>300 µm) and small (<150 µm) mesenteric arteries from nine adult male Sprague-Dawley rats, pooled to create six samples (3 rats/sample, 3 samples/group). After normalized integration, the dataset was scaled before unsupervised cell clustering and cluster visualization using UMAP plots. Differential gene expression analysis allowed us to infer the biological identity of different clusters. Our analysis revealed 630 and 641 differentially expressed genes (DEGs) between conduit and resistance arteries for ECs and VSMCs, respectively. Gene ontology analysis (GO-Biological Processes, GOBP) of scRNA-seq data discovered 562 and 270 pathways for ECs and VSMCs, respectively, that differed between large and small arteries. We identified eight and seven unique ECs and VSMCs subpopulations, respectively, with DEGs and pathways identified for each cluster. These results and this dataset allow the discovery and support of novel hypotheses needed to identify mechanisms that determine the phenotypic heterogeneity between conduit and resistance arteries.
Collapse
Affiliation(s)
- Jacob R Anderson
- Department of Cell Biology and Physiology, University of New Mexico Health Sciences Center, Albuquerque, New Mexico, United States
| | - Emily E Morin
- Department of Cell Biology and Physiology, University of New Mexico Health Sciences Center, Albuquerque, New Mexico, United States
| | - Kathryn J Brayer
- Department of Cell Biology and Physiology, University of New Mexico Health Sciences Center, Albuquerque, New Mexico, United States
| | - Sophia Salbato
- Department of Cell Biology and Physiology, University of New Mexico Health Sciences Center, Albuquerque, New Mexico, United States
| | - Laura V Gonzalez Bosc
- Department of Cell Biology and Physiology, University of New Mexico Health Sciences Center, Albuquerque, New Mexico, United States
| | - Nancy L Kanagy
- Department of Cell Biology and Physiology, University of New Mexico Health Sciences Center, Albuquerque, New Mexico, United States
| | - Jay S Naik
- Department of Cell Biology and Physiology, University of New Mexico Health Sciences Center, Albuquerque, New Mexico, United States
| |
Collapse
|
26
|
Baldwin SN, Forrester EA, Homer NZM, Andrew R, Barrese V, Stott JB, Isakson BE, Albert AP, Greenwood IA. Marked oestrous cycle-dependent regulation of rat arterial K V 7.4 channels driven by GPER1. Br J Pharmacol 2023; 180:174-193. [PMID: 36085551 PMCID: PMC10091994 DOI: 10.1111/bph.15947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Revised: 06/21/2022] [Accepted: 07/20/2022] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND AND PURPOSE Kcnq-encoded KV 7 channels (termed KV 7.1-5) regulate vascular smooth muscle cell (VSMC) contractility at rest and as targets of receptor-mediated responses. However, the current data are mostly derived from males. Considering the known effects of sex, the oestrous cycle and sex hormones on vascular reactivity, here we have characterised the molecular and functional properties of KV 7 channels from renal and mesenteric arteries from female Wistar rats separated into di-oestrus and met-oestrus (F-D/M) and pro-oestrus and oestrus (F-P/E). EXPERIMENTAL APPROACH RT-qPCR, immunocytochemistry, proximity ligation assay and wire myography were performed in renal and mesenteric arteries. Circulating sex hormone concentrations were determined by liquid chromatography-tandem mass spectrometry. Whole-cell electrophysiology was undertaken on cells expressing KV 7.4 channels in association with G-protein-coupled oestrogen receptor 1 (GPER1). KEY RESULTS The KV 7.2-5 activators S-1 and ML213 and the pan-KV 7 inhibitor linopirdine were more effective in arteries from F-D/M compared with F-P/E animals. In VSMCs isolated from F-P/E rats, exploratory evidence indicates reduced membrane abundance of KV 7.4 but not KV 7.1, KV 7.5 and Kcne4 when compared with cells from F-D/M. Plasma oestradiol was higher in F-P/E compared with F-D/M, and progesterone showed the converse pattern. Oestradiol/GPER1 agonist G-1 diminished KV 7.4 encoded currents and ML213 relaxations and reduced the membrane abundance of KV 7.4 and interaction between KV 7.4 and heat shock protein 90 (HSP90), in arteries from F-D/M but not F-P/E. CONCLUSIONS AND IMPLICATIONS GPER1 signalling decreased KV 7.4 membrane abundance in conjunction with diminished interaction with HSP90, giving rise to a 'pro-contractile state'.
Collapse
Affiliation(s)
- Samuel N. Baldwin
- Vascular Biology Research Centre, Institute of Molecular and Clinical SciencesSt George's University of LondonLondonUK
| | - Elizabeth A. Forrester
- Vascular Biology Research Centre, Institute of Molecular and Clinical SciencesSt George's University of LondonLondonUK
| | - Natalie Z. M. Homer
- Mass Spectrometry Core Laboratory, Edinburgh Clinical Research Facility, Queen's Medical Research InstituteUniversity of EdinburghEdinburghUK
| | - Ruth Andrew
- Mass Spectrometry Core Laboratory, Edinburgh Clinical Research Facility, Queen's Medical Research InstituteUniversity of EdinburghEdinburghUK
- BHF Centre for Cardiovascular Science, Queen's Medical Research InstituteUniversity of EdinburghEdinburghUK
| | - Vincenzo Barrese
- Department of Neuroscience, Reproductive Sciences and DentistryUniversity of Naples Federico IINaplesItaly
| | - Jennifer B. Stott
- Vascular Biology Research Centre, Institute of Molecular and Clinical SciencesSt George's University of LondonLondonUK
| | - Brant E. Isakson
- Department of Molecular Physiology and Biophysics, Robert M. Berne Cardiovascular Research CentreUniversity of Virginia School of MedicineCharlottesvilleVirginiaUSA
| | - Anthony P. Albert
- Vascular Biology Research Centre, Institute of Molecular and Clinical SciencesSt George's University of LondonLondonUK
| | - Iain A. Greenwood
- Vascular Biology Research Centre, Institute of Molecular and Clinical SciencesSt George's University of LondonLondonUK
| |
Collapse
|
27
|
Koshelev EG, Belyaev GY, Egorov AA. [Computed tomography diagnostics of acute and chronic mesenteric ischemia]. Khirurgiia (Mosk) 2023:67-82. [PMID: 38088843 DOI: 10.17116/hirurgia202312167] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2023]
Abstract
BACKGRAUND Chronic mesenteric ischemia is more often accompanied by clinical signs characteristic of colitis. Acute mesenteric ischemia, unlike chronic, is accompanied by nonspecific symptoms and is a serious disease that requires urgent diagnosis. AIMS The aim of the study was to evaluate the effectiveness of MSCT in the diagnosis of acute and chronic mesenteric ischemia based on our observations. MATERIALS AND METHODS The retrospective study included 135 patients with abdominalgia and suspected mesenteric ischemia who underwent multiphase CT of the abdominal cavity with intravenous bolus contrast enhancement. Group 1 included 105 patients with mesenteric ischemia; group 2 included 30, without confirmed mesenteric ischemia, with the presence of a symptom of mesenteric ischemia in the form of abdominalgia. RESULTS We studied 135 patients, including 105 patients with mesenteric ischemia, 59 women and 46 men of average age 60±14.9 years. The acute form of ischemia (58%) was determined 1.5 times more often than the chronic one. Occlusive and nonocclusive acute mesenteric ischemia occurred in equal proportions. Mesenteric arterial thrombosis was the cause of acute mesenteric ischemia in 23% of cases. Mesenteric venous thrombosis was the cause of chronic intestinal ischemia in 61%, in 5% - acute form. Mixed arterial-venous genesis of mesenteric ischemia was determined in 4% against the background of strangulation obstruction. Dunbar syndrome as a cause of chronic intestinal ischemia was diagnosed in 16%. Chronic ischemic enterocolitis accounted for 10% of all cases of mesenteric ischemia and 23% of chronic ischemia. Symptoms and symptom complexes characteristic of the studied series of diseases with acute or chronic mesenteric ischemia were delineated. Sensitivity, specificity and prognostic value of CT with intravenous bolus contrast enhancement in diagnostics of diseases accompanied by mesenteric ischemia reached 100%. CONCLUSIONS Multiphase CT of the abdominal cavity with bolus contrast enhancement is highly informative in the diagnosis of acute and chronic forms of mesenteric ischemia. Direct CT signs of impaired blood flow in the arteries or veins of the mesentery were indisputable. Indirect signs of mesenteric ischemia were aimed at a thorough analysis of the condition of mesenteric vessels.
Collapse
Affiliation(s)
- E G Koshelev
- Central State Medical Academy of Administrative Directorate of the President of the Russian Federation, Moscow, Russia
- Clinical Hospital of Administrative Directorate of the President of the Russian Federation, Moscow, Russia
| | - G Yu Belyaev
- Central State Medical Academy of Administrative Directorate of the President of the Russian Federation, Moscow, Russia
- Polyclinic No. 2 of Administrative Directorate of the President of the Russian Federation, Moscow, Russia
| | - A A Egorov
- Polyclinic No. 2 of Administrative Directorate of the President of the Russian Federation, Moscow, Russia
| |
Collapse
|
28
|
Choi S, Haam CE, Oh EY, Byeon S, Choi SK, Lee YH. Vanillin Induces Relaxation in Rat Mesenteric Resistance Arteries by Inhibiting Extracellular Ca 2+ Influx. Molecules 2022; 28:molecules28010288. [PMID: 36615485 PMCID: PMC9822298 DOI: 10.3390/molecules28010288] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 12/23/2022] [Accepted: 12/28/2022] [Indexed: 12/31/2022] Open
Abstract
Vanillin is a phenolic aldehyde, which is found in plant species of the Vanilla genus. Although recent studies have suggested that vanillin has various beneficial properties, the effect of vanillin on blood vessels has not been studied well. In the present study, we investigated whether vanillin has vascular effects in rat mesenteric resistance arteries. To examine the vascular effect of vanillin, we measured the isometric tension of arteries using a multi-wire myograph system. After the arteries were pre-contracted with high K+ (70 mM) or phenylephrine (5 µM), vanillin was administered. Vanillin induced concentration-dependent vasodilation. Endothelial denudation or treatment of eNOS inhibitor (L-NNA, 300 μM) did not affect the vasodilation induced by vanillin. Treatment of K+ channel inhibitor (TEA, 10 mM) or sGC inhibitor (ODQ, 10 μM) or COX-2 inhibitor (indomethacin, 10 μM) did not affect the vanillin-induced vasodilation either. The treatment of vanillin decreased the contractile responses induced by Ca2+ addition. Furthermore, vanillin significantly reduced vascular contraction induced by BAY K 8644 (30 nM). Vanillin induced concentration-dependent vascular relaxation in rat mesenteric resistance arteries, which was endothelium-independent. Inhibition of extracellular Ca2+ influx was involved in vanillin-induced vasodilation. Treatment of vanillin reduced phopsho-MLC20 in vascular smooth muscle cells. These results suggest the possibility of vanillin as a potent vasodilatory molecule.
Collapse
Affiliation(s)
| | | | | | | | - Soo-Kyoung Choi
- Correspondence: (S.-K.C.); (Y.-H.L.); Tel.: +82-2-2228-1722 (S.-K.C.); +82-2-2228-1708 (Y.-H.L.); Fax: +82-2-393-0203 (S.-K.C. & Y.-H.L.)
| | - Young-Ho Lee
- Correspondence: (S.-K.C.); (Y.-H.L.); Tel.: +82-2-2228-1722 (S.-K.C.); +82-2-2228-1708 (Y.-H.L.); Fax: +82-2-393-0203 (S.-K.C. & Y.-H.L.)
| |
Collapse
|
29
|
Jurrissen TJ, Ramirez-Perez FI, Cabral-Amador FJ, Soares RN, Pettit-Mee RJ, Betancourt-Cortes EE, McMillan NJ, Sharma N, Rocha HNM, Fujie S, Morales-Quinones M, Lazo-Fernandez Y, Butler AA, Banerjee S, Sacks HS, Ibdah JA, Parks EJ, Rector RS, Manrique-Acevedo C, Martinez-Lemus LA, Padilla J. Role of adropin in arterial stiffening associated with obesity and type 2 diabetes. Am J Physiol Heart Circ Physiol 2022; 323:H879-H891. [PMID: 36083795 PMCID: PMC9602697 DOI: 10.1152/ajpheart.00385.2022] [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: 07/28/2022] [Revised: 09/06/2022] [Accepted: 09/06/2022] [Indexed: 01/16/2023]
Abstract
Adropin is a peptide largely secreted by the liver and known to regulate energy homeostasis; however, it also exerts cardiovascular effects. Herein, we tested the hypothesis that low circulating levels of adropin in obesity and type 2 diabetes (T2D) contribute to arterial stiffening. In support of this hypothesis, we report that obesity and T2D are associated with reduced levels of adropin (in liver and plasma) and increased arterial stiffness in mice and humans. Establishing causation, we show that mesenteric arteries from adropin knockout mice are also stiffer, relative to arteries from wild-type counterparts, thus recapitulating the stiffening phenotype observed in T2D db/db mice. Given the above, we performed a set of follow-up experiments, in which we found that 1) exposure of endothelial cells or isolated mesenteric arteries from db/db mice to adropin reduces filamentous actin (F-actin) stress fibers and stiffness, 2) adropin-induced reduction of F-actin and stiffness in endothelial cells and db/db mesenteric arteries is abrogated by inhibition of nitric oxide (NO) synthase, and 3) stimulation of smooth muscle cells or db/db mesenteric arteries with a NO mimetic reduces stiffness. Lastly, we demonstrated that in vivo treatment of db/db mice with adropin for 4 wk reduces stiffness in mesenteric arteries. Collectively, these findings indicate that adropin can regulate arterial stiffness, likely via endothelium-derived NO, and thus support the notion that "hypoadropinemia" should be considered as a putative target for the prevention and treatment of arterial stiffening in obesity and T2D.NEW & NOTEWORTHY Arterial stiffening, a characteristic feature of obesity and type 2 diabetes (T2D), contributes to the development and progression of cardiovascular diseases. Herein we establish that adropin is decreased in obese and T2D models and furthermore provide evidence that reduced adropin may directly contribute to arterial stiffening. Collectively, findings from this work support the notion that "hypoadropinemia" should be considered as a putative target for the prevention and treatment of arterial stiffening in obesity and T2D.
Collapse
Affiliation(s)
- Thomas J Jurrissen
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, Missouri
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, Missouri
| | | | | | - Rogerio N Soares
- Department of Medicine, Center for Precision Medicine, University of Missouri, Columbia, Missouri
| | - Ryan J Pettit-Mee
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, Missouri
| | | | - Neil J McMillan
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, Missouri
| | - Neekun Sharma
- Department of Medicine, Center for Precision Medicine, University of Missouri, Columbia, Missouri
| | - Helena N M Rocha
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, Missouri
- Department of Physiology and Pharmacology, Fluminense Federal University, Niteroi, Brazil
| | - Shumpei Fujie
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, Missouri
- Faculty of Sport and Health Science, Ritsumeikan University, Shiga, Japan
| | - Mariana Morales-Quinones
- Department of Medicine, Center for Precision Medicine, University of Missouri, Columbia, Missouri
| | - Yoskaly Lazo-Fernandez
- Department of Medicine, Center for Precision Medicine, University of Missouri, Columbia, Missouri
| | - Andrew A Butler
- Department of Pharmacology and Physiological Sciences, Saint Louis University, Saint Louis, Missouri
| | - Subhashis Banerjee
- Department of Pharmacology and Physiological Sciences, Saint Louis University, Saint Louis, Missouri
| | - Harold S Sacks
- Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, California
| | - Jamal A Ibdah
- Harry S. Truman Memorial Veterans' Hospital, Columbia, Missouri
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Missouri, Columbia, Missouri
| | - Elizabeth J Parks
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, Missouri
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Missouri, Columbia, Missouri
| | - R Scott Rector
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, Missouri
- Harry S. Truman Memorial Veterans' Hospital, Columbia, Missouri
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Missouri, Columbia, Missouri
| | - Camila Manrique-Acevedo
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, Missouri
- Harry S. Truman Memorial Veterans' Hospital, Columbia, Missouri
- Division of Endocrinology and Metabolism, Department of Medicine, University of Missouri, Columbia, Missouri
| | - Luis A Martinez-Lemus
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, Missouri
- Department of Medicine, Center for Precision Medicine, University of Missouri, Columbia, Missouri
- Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, Missouri
| | - Jaume Padilla
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, Missouri
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, Missouri
- Harry S. Truman Memorial Veterans' Hospital, Columbia, Missouri
| |
Collapse
|
30
|
Sun J, Wang L, Que Y, Li H, Wu K, Yuan D, Xiong J, Wang W. Management of Patients with Uncomplicated Symptomatic Isolated Mesenteric Artery Dissection: a Multicentre Experience. Eur J Vasc Endovasc Surg 2022; 64:507-514. [PMID: 36038050 DOI: 10.1016/j.ejvs.2022.08.023] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [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: 12/01/2021] [Revised: 08/13/2022] [Accepted: 08/17/2022] [Indexed: 01/12/2023]
Abstract
OBJECTIVE Isolated mesenteric artery dissection (IMAD) is an increasingly diagnosed disease. However, multicentre studies to support clinical decision making are limited. This multicentre retrospective study aimed to investigate the characteristics, treatment options, and outcomes of IMAD. METHODS Data from consecutively enrolled patients with IMAD between October 2009 and May 2021 at three hospitals were collected retrospectively. One hundred and ninety uncomplicated symptomatic IMAD patients were divided into two groups: conservative (n = 141) and operative (n = 49). The costs, length of hospital stay, factors affecting outcomes, symptom relief, and complete remodelling of superior mesenteric artery (SMA) were analysed between the two groups. RESULTS Compared with patients who received operative treatment, patients receiving conservative treatment had shorter hospital stays (8.2 ± 4.6 vs. 11.9 ± 6.4 day, p < .020) and lower hospital costs (14 900 ± 1 048 vs. 60 400 ± 7 733 yuan, p < .001). In contrast, patients receiving operative treatment showed higher complete SMA remodelling (95.9% vs. 51.8%, p < .001). The cumulative rate of symptom relief was similar between the groups (p = .71). The rates were 78% vs. 79%, 87% vs. 87%, 89% vs. 87% at one, 12, and 60 months in the conservative and operative groups, respectively. Further subgroup analysis showed that endovascular treatment of IMAD had the advantage of shorter hospital stays than open surgery (10.7 ± 4.5 vs. 25.2 ± 9.4 days, p < .010). Univariable analysis showed that Sakamoto type II was associated with failed complete SMA remodelling (odds ratio 0.34; 95% confidence intervals 0.13 - 0.91; p = .031). CONCLUSION IMAD patients achieved good long term survival and symptom relief regardless of the treatment. Sakamoto type II IMAD is a risk factor for failed complete SMA remodelling. Although endovascular treatment provided a higher rate of complete SMA remodelling, the conservative group had statistically significantly shorter hospital stays, lower hospital costs, and similar cumulative rates of symptom relief. Therefore, this study supports conservative treatment as the main strategy for uncomplicated symptomatic IMAD patients.
Collapse
Affiliation(s)
- Jinjian Sun
- Department of General &Vascular Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Lei Wang
- Department of General &Vascular Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yifu Que
- Department of Vascular and Endovascular Surgery, the First Medical Centre of Chinese PLA General Hospital, Beijing, China
| | - Hou Li
- Department of Vascular Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Kemin Wu
- Department of General &Vascular Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Ding Yuan
- Department of Vascular Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
| | - Jiang Xiong
- Department of Vascular and Endovascular Surgery, the First Medical Centre of Chinese PLA General Hospital, Beijing, China; Department of Vascular and Endovascular Surgery, Hainan Hospital, Chinese PLA General Hospital, Sanya, Hainan, China.
| | - Wei Wang
- Department of General &Vascular Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, China; National Clinical Research Centre for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China.
| |
Collapse
|
31
|
Manville RW, Redford KE, van der Horst J, Hogenkamp DJ, Jepps TA, Abbott GW. KCNQ5 activation by tannins mediates vasorelaxant effects of barks used in Native American botanical medicine. FASEB J 2022; 36:e22457. [PMID: 35997997 PMCID: PMC9404676 DOI: 10.1096/fj.202200724r] [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] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 06/30/2022] [Accepted: 07/06/2022] [Indexed: 11/11/2022]
Abstract
Tree and shrub barks have been used as folk medicine by numerous cultures across the globe for millennia, for a variety of indications, including as vasorelaxants and antispasmodics. Here, using electrophysiology and myography, we discovered that the KCNQ5 voltage-gated potassium channel mediates vascular smooth muscle relaxant effects of barks used in Native American folk medicine. Bark extracts (1%) from Birch, Cramp Bark, Slippery Elm, White Oak, Red Willow, White Willow, and Wild Cherry each strongly activated KCNQ5 expressed in Xenopus oocytes. Testing of a subset including both the most and the least efficacious extracts revealed that Red Willow, White Willow, and White Oak KCNQ-dependently relaxed rat mesenteric arteries; in contrast, Black Haw bark neither activated KCNQ5 nor induced vasorelaxation. Two compounds common to the active barks (gallic acid and tannic acid) had similarly potent and efficacious effects on both KCNQ5 activation and vascular relaxation, and this together with KCNQ5 modulation by other tannins provides a molecular basis for smooth muscle relaxation effects of Native American folk medicine bark extracts.
Collapse
Affiliation(s)
- Rian W. Manville
- Bioelectricity Laboratory, Dept. of Physiology and Biophysics, School of Medicine, University of California, Irvine, CA, USA
| | - Kaitlyn E. Redford
- Bioelectricity Laboratory, Dept. of Physiology and Biophysics, School of Medicine, University of California, Irvine, CA, USA
| | - Jennifer van der Horst
- Department of Biomedical Sciences, Vascular Biology Group, Panum Institute, University of Copenhagen, Copenhagen, Denmark
| | - Derk J. Hogenkamp
- Bioelectricity Laboratory, Dept. of Physiology and Biophysics, School of Medicine, University of California, Irvine, CA, USA
| | - Thomas A. Jepps
- Department of Biomedical Sciences, Vascular Biology Group, Panum Institute, University of Copenhagen, Copenhagen, Denmark
| | - Geoffrey W. Abbott
- Bioelectricity Laboratory, Dept. of Physiology and Biophysics, School of Medicine, University of California, Irvine, CA, USA
| |
Collapse
|
32
|
Kwon Y, Haam CE, Byeon S, Choi SK, Lee YH. Effects of 3-methyladenine, an autophagy inhibitor, on the elevated blood pressure and arterial dysfunction of angiotensin II-induced hypertensive mice. Biomed Pharmacother 2022; 154:113588. [PMID: 35994821 DOI: 10.1016/j.biopha.2022.113588] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [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: 07/03/2022] [Revised: 08/17/2022] [Accepted: 08/17/2022] [Indexed: 11/19/2022] Open
Abstract
Autophagy is an intracellular degradation system that disassembles cytoplasmic components through autophagosomes fused with lysosomes. Recently, it has been reported that autophagy is associated with cardiovascular diseases, including pulmonary hypertension, atherosclerosis, and myocardial ischemia. However, the involvement of autophagy in hypertension is not well understood. In the present study, we hypothesized that excessive autophagy contributes to the dysfunction of mesenteric arteries in angiotensin II (Ang II)-induced hypertensive mice. Treatment of an autophagy inhibitor, 3-methyladenine (3-MA), reduced the elevated blood pressure and wall thickness, and improved endothelium-dependent relaxation in mesenteric arteries of Ang II-treated mice. The expression levels of autophagy markers, beclin1 and LC3 II, were significantly increased by Ang II infusion, which was reduced by treatment of 3-MA. Furthermore, treatment of 3-MA induced vasodilation in the mesenteric resistance arteries pre-contracted with U46619 or phenylephrine, which was dependent on endothelium. Interestingly, nitric oxide production and phosphorylated endothelial nitric oxide synthase (p-eNOS) at S1177 in the mesenteric arteries of Ang II-treated mice were increased by treatment with 3-MA. In HUVECs, p-eNOS was reduced by Ang II, which was increased by treatment of 3-MA. 3-MA had direct vasodilatory effect on the pre-contracted mesenteric arteries. In cultured vascular smooth muscle cells (VSMCs), Ang II induced increase in beclin1 and LC3 II and decrease in p62, which was reversed by treatment of 3-MA. These results suggest that autophagy inhibition exerts beneficial effects on the dysfunction of mesenteric arteries in hypertension.
Collapse
Affiliation(s)
- Youngin Kwon
- Department of Physiology, College of Medicine, Brain Korea 21 PLUS Project for Medical Sciences, Yonsei University, 50 Yonseiro, Seodaemun-gu, Seoul 03722, the Republic of the Korea
| | - Chae Eun Haam
- Department of Physiology, College of Medicine, Brain Korea 21 PLUS Project for Medical Sciences, Yonsei University, 50 Yonseiro, Seodaemun-gu, Seoul 03722, the Republic of the Korea
| | - Seonhee Byeon
- Department of Physiology, College of Medicine, Brain Korea 21 PLUS Project for Medical Sciences, Yonsei University, 50 Yonseiro, Seodaemun-gu, Seoul 03722, the Republic of the Korea
| | - Soo-Kyoung Choi
- Department of Physiology, College of Medicine, Brain Korea 21 PLUS Project for Medical Sciences, Yonsei University, 50 Yonseiro, Seodaemun-gu, Seoul 03722, the Republic of the Korea.
| | - Young-Ho Lee
- Department of Physiology, College of Medicine, Brain Korea 21 PLUS Project for Medical Sciences, Yonsei University, 50 Yonseiro, Seodaemun-gu, Seoul 03722, the Republic of the Korea.
| |
Collapse
|
33
|
Mu W, Hu N, Zhang LH, Jiang W, Yan T, Zhang T, Liu A, Zhang YQ, Zhao J, Shi L, Liu LN. Lonicerae japonicae flos ameliorates radiotherapy-induced mesenteric artery endothelial dysfunction through GTPCH1/BH 4/eNOS pathway. Phytomedicine 2022; 102:154146. [PMID: 35594639 DOI: 10.1016/j.phymed.2022.154146] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 04/14/2022] [Accepted: 05/01/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND As a traditional Chinese medicine, Lonicerae japonicae flos (LJF) and its main component chlorogenic acid (CGA) have anti-oxidant, anti-bacterial and anti-tumor effects. However, there is no research on the potential of LJF for vascular protection in radiotherapy. PURPOSE To elucidate the potential and possible mechanisms of the LJF extract and CGA in alleviating endothelial dysfunction caused by abdominal radiotherapy. METHODS LJF was extracted with water and the CGA content was analyzed by HPLC. Male Sprague-Dawley rats received abdominal radiotherapy for 21 days. Seven days after irradiation, Laser Doppler and ex vivo vascular tension experiments were performed. Nitric oxide (NO), superoxide anion levels and tetrahydrobiopterin (BH4) content were detected. Western blot, flow cytometry and molecular docking were used. RESULTS In the radiotherapy group, the mesenteric arterial blood perfusion, NO, and superoxide anion levels were significantly reduced; rats treated with the LJF extract or CGA showed a certain extent of recovery of these indicators. Vascular tension experiments showed that CGA and the LJF extract improved the vasodilation of mesenteric arteries. Cell experiments demonstrated that CGA increased the NO content and reduce superoxide anion production and cell apoptosis. The expression levels of GTPCH1/BH4/eNOS signaling pathway were significantly increased due to the use of the LJF extract or CGA in vivo and in vitro. CONCLUSIONS Our study demonstrated for the first time that LJF and its main component, CGA could prevent abdominal radiotherapy-induced vascular endothelial dysfunction via GTPCH1/BH4/eNOS pathway. LJF could be a potential therapeutic herbal agent.
Collapse
Affiliation(s)
- Wei Mu
- Department of Pharmacy, The Second Affiliated Hospital of Air Force Medical University, Xi'an, China
| | - Na Hu
- Department of Pharmacy, The Second Affiliated Hospital of Air Force Medical University, Xi'an, China
| | - Lan-Hui Zhang
- Department of Traditional Chinese Medicine, The Second Affiliated Hospital of Air Force Medical University, Xi'an, China
| | - Wei Jiang
- Department of Pharmacy, The Second Affiliated Hospital of Air Force Medical University, Xi'an, China
| | - Tao Yan
- Department of Pharmacy, The Second Affiliated Hospital of Air Force Medical University, Xi'an, China
| | - Tian Zhang
- Department of Pharmacy, The Second Affiliated Hospital of Air Force Medical University, Xi'an, China
| | - An Liu
- Department of Pharmacy, The Second Affiliated Hospital of Air Force Medical University, Xi'an, China
| | - Yong-Qiang Zhang
- Department of Chinese Materia Medica and Natural Medicines, School of Pharmacy, Air Force Medical University, Xi'an, China
| | - Jun Zhao
- Department of Pharmacy, The Second Affiliated Hospital of Air Force Medical University, Xi'an, China
| | - Lei Shi
- Department of Pharmacy, The Second Affiliated Hospital of Air Force Medical University, Xi'an, China.
| | - Lin-Na Liu
- Department of Pharmacy, The Second Affiliated Hospital of Air Force Medical University, Xi'an, China.
| |
Collapse
|
34
|
Memon S, Friend E, Janzer S, Kalra S, George JC. 3D Printing for Mesenteric Artery Endovascular Interventions: Feasibility and Utility for Preprocedural Planning and Angiographic Correlation. J Invasive Cardiol 2022; 34:E510-E518. [PMID: 35551104] [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] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
BACKGROUND Three-dimensional (3D) printing of mesenteric artery (MA) anatomy preprocedurally for endovascular interventions can allow strategic preprocedure planning and improve procedure-related clinical outcomes. METHODS Three patients with computed tomography angiography (CTA) of the abdomen and pelvis who subsequently underwent MA interventions were 3D printed retrospectively, and 2 patients with symptoms and severe MA stenosis on CTA, who had not undergone intervention, were 3D printed for procedure-related planning and anatomy-specific implications. The 3D-printed models (3D-PMs) were painted with acrylic paint to highlight anatomy. Reference vessel size, lesion length (LL), and renal artery (RA) to MA distance were determined using a digital millimeter caliper. RESULTS Each of the 5 patients with variable anatomy, including an MA chronic total occlusion (CTO), were successfully 3D printed. A digital caliper allowed determination of vessel size, LL, and RA to MA distance, which were then compared with intraprocedural MA angiograms and intravascular imaging when available. Further complex anatomies, such as intraprocedural navigation in the setting of prior abdominal aortic endograft and CTO assessment with relevance to cap morphology, small branch arteries, and collateral flow, were also successfully 3D printed. CONCLUSION Preprocedural 3D printing of MA anatomy for interventions can theoretically lead to decreases in contrast use, radiation dose, and fluoroscopic and procedural times, as well as enhance comprehension of complex patient-specific anatomy.
Collapse
Affiliation(s)
| | | | | | | | - Jon C George
- Einstein Medical Center, 1200 West Tabor Rd, Tabor Medical Building - Moss, 3rd Floor, Philadelphia, PA 19141 USA.
| |
Collapse
|
35
|
Bridges LE, Williams CL, Awumey EM. High Salt Upregulates Ca 2+-Sensing Receptor Expression and Ca 2+-Induced Relaxation of Contracted Mesenteric Arteries from Dahl Salt-Sensitive Rats. J Pharmacol Exp Ther 2022; 381:120-128. [PMID: 35306475 PMCID: PMC9048267 DOI: 10.1124/jpet.121.001034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 03/01/2022] [Indexed: 11/22/2022] Open
Abstract
High Ca2+ lowers blood pressure in hypertension, but the mechanism is not clear. The missing link may be the perivascular sensory nerve Ca2+-sensing receptor (CaSR) that mediates a vasodilator system after activation by interstitial Ca2+ Our results show that high salt increased CaSR expression in mesenteric arteries as well as Ca2+ relaxation of contracted mesenteric arteries from salt-sensitive (SS) rats. The CaSR was expressed as a doublet (≈120-150 kDa) in arteries from animals fed a high-salt diet for 1-4 weeks. The higher molecular weight glycosylated protein increased in arteries from SS animals; however, expression of the low molecular mass high-mannose protein decreased over 4 weeks of feeding the diet. In tissues from salt-resistant (SR) rats, the diet decreased CaSR expression after 4 weeks. Ca2+ relaxation of mesenteric arteries under phenylephrine tone increased in SS rats but decreased in arteries from SR rats fed the high-salt diet. Ca2+-activated K+ channels have a larger role in Ca2+ relaxation of arteries in SR than SS rats. The data suggest that high salt epigenetically regulates the receptor at the translational level in vivo and that the in vitro effect of Ca2+ is on receptor trafficking and signaling. In conclusion, upregulated expression of the CaSR in salt sensitivity increased receptor-mediated vascular relaxation. These findings show that CaSR signaling may compensate for changes in the vasculature in salt-sensitive hypertension. SIGNIFICANCE STATEMENT: The perivascular sensory nerve Ca2+-sensing receptor (CaSR) mediates Ca2+ relaxation of isolated mesenteric arteries under tension. This receptor may therefore play a significant role in relaxation of resistance arteries in vivo, thus explaining the blood pressure-lowering effect of dietary Ca2+. The present studies describe the effect of high salt-induced upregulation of the CaSR in salt-sensitive rats and the roles played by Ca2+-activated K+ channels and nitric oxide in Ca2+ responses.
Collapse
Affiliation(s)
- Lakeesha E Bridges
- Julius L. Chambers Biomedical and Biotechnology Research Institute (L.E.B., C.L.W., E.M.A.) and Department of Biological and Biomedical Sciences (E.M.A.), North Carolina Central University, Durham, North Carolina; and Department of Physiology and Pharmacology and Hypertension and Vascular Research Center, Wake Forest University School of Medicine, Winston Salem, North Carolina (E.M.A.)
| | - Cicely L Williams
- Julius L. Chambers Biomedical and Biotechnology Research Institute (L.E.B., C.L.W., E.M.A.) and Department of Biological and Biomedical Sciences (E.M.A.), North Carolina Central University, Durham, North Carolina; and Department of Physiology and Pharmacology and Hypertension and Vascular Research Center, Wake Forest University School of Medicine, Winston Salem, North Carolina (E.M.A.)
| | - Emmanuel M Awumey
- Julius L. Chambers Biomedical and Biotechnology Research Institute (L.E.B., C.L.W., E.M.A.) and Department of Biological and Biomedical Sciences (E.M.A.), North Carolina Central University, Durham, North Carolina; and Department of Physiology and Pharmacology and Hypertension and Vascular Research Center, Wake Forest University School of Medicine, Winston Salem, North Carolina (E.M.A.)
| |
Collapse
|
36
|
Mensah EA, Daneshtalab N, Tabrizchi R. Differential biomechanics in resistance arteries of male compared with female Dahl hypertensive rats. J Hypertens 2022; 40:596-605. [PMID: 34799537 PMCID: PMC8815839 DOI: 10.1097/hjh.0000000000003053] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Revised: 11/08/2021] [Accepted: 11/09/2021] [Indexed: 11/25/2022]
Abstract
BACKGROUND Increase in vascular stiffness is associated with a higher risk of cardiovascular morbidity and mortality and is likely sex-specific. METHOD Our objectives were to compare structural and functional alterations in small resistance arteries as related to vascular stiffness from Dahl salt-sensitive male and female rats (n = 8, mean ± s.e.m.). RESULTS Arterial blood pressure and pulse wave velocity were significantly (P < 0.05) elevated in males (161 ± 3 mmHg; 6.4 ± 0.2 m/s) and females (147 ± 2 mmHg; 5.5 ± 0.1 m/s) on a high (H) salt compared with regular (R) diets but were significantly higher in males (H) than in all others. Significant increases in collagen and smooth muscle cell areas were evident in ultrastructure of mesenteric arteries of hypertensive males compared to normotensive or corresponding females. There were no significant differences in composite Young's modulus (CYM) between groups. Vasoconstriction resulted in significantly higher CYM in male (H: 8.6 ± 1 KPa) than R (4.5 ± 0.8 KPa), and the corresponding females (H: 5.6 ± 0.6 KPa and R: 5 ± 0.9 KPa). In contrast, vasodilation significantly reduced CYM in the male groups (H: 2.5 ± 0.4 KPa and R: 2.7 ± 0.5 KPa) compared with the corresponding values in females (H: 4.2 ± 0.6 KPa and R: 5 ± 0.5 KPa). Moreover, the slope of pressure-volume curves revealed significantly greater distended vascular compliance in male H than R, and the corresponding females. CONCLUSION Our findings are supportive of a link between high salt intake and elevated blood pressure as being sex specific, likely involving sex-dependent changes in ultrastructure of the vessels, which ultimately may alter the biomechanics, and thus, the haemodynamic functions of both macro-circulation and micro-circulations.
Collapse
Affiliation(s)
| | - Noriko Daneshtalab
- School of Pharmacy, Memorial University, St. John's, Newfoundland and Labrador, Canada
| | | |
Collapse
|
37
|
da Costa Marques LA, Teixeira SA, de Jesus FN, Wood ME, Torregrossa R, Whiteman M, Costa SKP, Muscará MN. Vasorelaxant Activity of AP39, a Mitochondria-Targeted H 2S Donor, on Mouse Mesenteric Artery Rings In Vitro. Biomolecules 2022; 12:280. [PMID: 35204781 PMCID: PMC8961640 DOI: 10.3390/biom12020280] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 01/21/2022] [Accepted: 01/29/2022] [Indexed: 02/01/2023] Open
Abstract
Mitochondria-targeted hydrogen sulfide (H2S) donor compounds, such as compound AP39, supply H2S into the mitochondrial environment and have shown several beneficial in vitro and in vivo effects in cardiovascular conditions such as diabetes and hypertension. However, the study of their direct vascular effects has not been addressed to date. Thus, the objective of the present study was to analyze the effects and describe the mechanisms of action of AP39 on the in vitro vascular reactivity of mouse mesenteric artery. Protein and gene expressions of the H2S-producing enzymes (CBS, CSE, and 3MPST) were respectively analyzed by Western blot and qualitative RT-PCR, as well the in vitro production of H2S by mesenteric artery homogenates. Gene expression of CSE and 3MPST in the vessels has been evidenced by RT-PCR experiments, whereas the protein expression of all the three enzymes was demonstrated by Western blotting experiments. Nonselective inhibition of H2S-producing enzymes by AOAA abolished H2S production, whereas it was partially inhibited by PAG (a CSE selective inhibitor). Vasorelaxation promoted by AP39 and its H2S-releasing moiety (ADT-OH) were significantly reduced after endothelium removal, specifically dependent on NO-cGMP signaling and SKCa channel opening. Endogenous H2S seems to participate in the mechanism of action of AP39, and glibenclamide-induced KATP blockade did not affect the vasorelaxant response. Considering the results of the present study and the previously demonstrated antioxidant and bioenergetic effects of AP39, we conclude that mitochondria-targeted H2S donors may offer a new promising perspective in cardiovascular disease therapeutics.
Collapse
Affiliation(s)
- Leonardo A. da Costa Marques
- Department of Pharmacology, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo 05508-000, SP, Brazil; (L.A.d.C.M.); (S.A.T.); (F.N.d.J.); (S.K.P.C.)
| | - Simone A. Teixeira
- Department of Pharmacology, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo 05508-000, SP, Brazil; (L.A.d.C.M.); (S.A.T.); (F.N.d.J.); (S.K.P.C.)
| | - Flávia N. de Jesus
- Department of Pharmacology, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo 05508-000, SP, Brazil; (L.A.d.C.M.); (S.A.T.); (F.N.d.J.); (S.K.P.C.)
| | - Mark E. Wood
- Medical School, University of Exeter, Exeter EX1 2LU, UK; (M.E.W.); (R.T.); (M.W.)
- School of Biosciences, University of Exeter, Exeter EX4 4QD, UK
| | - Roberta Torregrossa
- Medical School, University of Exeter, Exeter EX1 2LU, UK; (M.E.W.); (R.T.); (M.W.)
- School of Biosciences, University of Exeter, Exeter EX4 4QD, UK
| | - Matthew Whiteman
- Medical School, University of Exeter, Exeter EX1 2LU, UK; (M.E.W.); (R.T.); (M.W.)
| | - Soraia K. P. Costa
- Department of Pharmacology, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo 05508-000, SP, Brazil; (L.A.d.C.M.); (S.A.T.); (F.N.d.J.); (S.K.P.C.)
| | - Marcelo N. Muscará
- Department of Pharmacology, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo 05508-000, SP, Brazil; (L.A.d.C.M.); (S.A.T.); (F.N.d.J.); (S.K.P.C.)
- Department of Physiology and Pharmacology, Cumming School of Medicine, University of Calgary, 3330 Hospital Dr. NW, Calgary, AB T2N 4N1, Canada
| |
Collapse
|
38
|
Kaisinova AS, Uzdenov MB, Fedorov AA, Badakhova DK, Gusova BA, Khodova TV. [Evaluation of resistance to transient occlusion of anterior mesenteric artery under the influence of the course of mineral water enriched with selenium (experimental research)]. Vopr Kurortol Fizioter Lech Fiz Kult 2022; 99:50-55. [PMID: 36511467 DOI: 10.17116/kurort20229906250] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
OBJECTIVE To evaluate the effect of the preventive course of drinking mineral water enriched with selenium on the processes of resistance to the damaging action of reversible occlusion of the anterior mesenteric artery based on the comparison of intestinal morphological changes in the experiment. MATERIAL AND METHODS There has been modeled ischemic reperfusion injury of the intestinal wall according to H. Ikeda and co-authors using reversible occlusion of the anterior mesenteric artery with 33 outbred male rats. The rats were divided into four groups by block randomization: the 1st group - intact animals (n=7) - without an exposure; the control group - sham operated animals (n=6); the group of comparison (n=7) - with a model-operation; the experimental group (n=11) - animals with a model operation that had courses of intragastric watering of bottled sulfate-chloride-hydrocarbonate-sodium low-mineralized (2.2 g/l) drinking mineral water «Psyzh» enriched with selenium. Biopsies of the small intestine were taken for histological examination. RESULTS Histological examination of the small intestine of experimental animals determines various degrees of severity of damage: on average, the animals of the experimental group on the scale of C.J. Chiu (1970) had the lowest degree of severity of pathological changes, the animals of the group of comparison - 1.4 times higher (p=0.02). That is, the effect of a preventive course of mineral water «Psyzh» enriched with selenium was manifested in the formation of resistance to the damaging effect of reversible occlusion of the anterior mesenteric artery; in the presence of ischemic reperfusion damage to the intestinal wall, comparable in severity to changes with the animals without prevention, the most significant positive effect was realized in the containment of reactive changes. CONCLUSION The effect of the preventive course of drinking mineral water «Psyzh» enriched with selenium manifested itself in the formation of resistance to the damaging effect of reversible occlusion of the anterior mesenteric artery, which is the basis for introducing this technique into clinical practice in order to prevent the development of reperfusion injuries of the intestine.
Collapse
Affiliation(s)
- A S Kaisinova
- North Caucasian Federal Scientific and Clinical Center of Federal Medical and Biological Agency, Essentuki, Russia
- Pyatigorsk Medical and Pharmaceutical Institute - Branch of the Volgograd State Medical University, Pyatigorsk, Russia
| | - M B Uzdenov
- North Caucasian State Academy, Cherkessk, Russia
| | - A A Fedorov
- Ural State Medical University, Yekaterinburg, Russia
- Yekaterinburg Medical and Scientific Center for the Prevention and Protection of Health of Workers' Enterprises, Yekaterinburg, Russia
| | | | - B A Gusova
- Pyatigorsk Medical and Pharmaceutical Institute - Branch of the Volgograd State Medical University, Pyatigorsk, Russia
| | - T V Khodova
- North Caucasian Federal Scientific and Clinical Center of Federal Medical and Biological Agency, Essentuki, Russia
- Pyatigorsk Medical and Pharmaceutical Institute - Branch of the Volgograd State Medical University, Pyatigorsk, Russia
| |
Collapse
|
39
|
Saleem A, Saleem H, Ahmed Sheikh SS. Mesenteric Artery Pseudo-aneurysm: A Rare and Complex Complication of Abdominal Surgery. J Coll Physicians Surg Pak 2022; 32:128-129. [PMID: 34983167 DOI: 10.29271/jcpsp.2022.01.128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Accepted: 04/24/2021] [Indexed: 06/14/2023]
Affiliation(s)
- Aniqua Saleem
- Department of Radiology, Rawalpindi Medical University, Rawalpindi, Pakistan
| | - Hira Saleem
- Department of Surgery, Shifa International Hospital, Islamabad, Pakistan
| | | |
Collapse
|
40
|
Le T, Martín-Aragón Baudel M, Syed A, Singhrao N, Pan S, Flores-Tamez VA, Burns AE, Man KNM, Karey E, Hong J, Hell JW, Pinkerton KE, Chen CY, Nieves-Cintrón M. Secondhand Smoke Exposure Impairs Ion Channel Function and Contractility of Mesenteric Arteries. Function (Oxf) 2021; 2:zqab041. [PMID: 34553140 PMCID: PMC8448673 DOI: 10.1093/function/zqab041] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 08/05/2021] [Accepted: 08/16/2021] [Indexed: 01/11/2023] Open
Abstract
Cigarette smoke, including secondhand smoke (SHS), has significant detrimental vascular effects, but its effects on myogenic tone of small resistance arteries and the underlying mechanisms are understudied. Although it is apparent that SHS contributes to endothelial dysfunction, much less is known about how this toxicant alters arterial myocyte contraction, leading to alterations in myogenic tone. The study's goal is to determine the effects of SHS on mesenteric arterial myocyte contractility and excitability. C57BL/6J male mice were randomly assigned to either filtered air (FA) or SHS (6 h/d, 5 d/wk) exposed groups for a 4, 8, or 12-weeks period. Third and fourth-order mesenteric arteries and arterial myocytes were acutely isolated and evaluated with pressure myography and patch clamp electrophysiology, respectively. Myogenic tone was found to be elevated in mesenteric arteries from mice exposed to SHS for 12 wk but not for 4 or 8 wk. These results were correlated with an increase in L-type Ca2+ channel activity in mesenteric arterial myocytes after 12 wk of SHS exposure. Moreover, 12 wk SHS exposed arterial myocytes have reduced total potassium channel current density, which correlates with a depolarized membrane potential (Vm). These results suggest that SHS exposure induces alterations in key ionic conductances that modulate arterial myocyte contractility and myogenic tone. Thus, chronic exposure to an environmentally relevant concentration of SHS impairs mesenteric arterial myocyte electrophysiology and myogenic tone, which may contribute to increased blood pressure and risks of developing vascular complications due to passive exposure to cigarette smoke.
Collapse
Affiliation(s)
- Thanhmai Le
- Department of Pharmacology, University of California Davis, Davis, CA 95616, USA
| | | | - Arsalan Syed
- Department of Pharmacology, University of California Davis, Davis, CA 95616, USA
| | - Navid Singhrao
- Department of Pharmacology, University of California Davis, Davis, CA 95616, USA
| | - Shiyue Pan
- Department of Pharmacology, University of California Davis, Davis, CA 95616, USA
| | | | - Abby E Burns
- Department of Pharmacology, University of California Davis, Davis, CA 95616, USA
| | - Kwun Nok Mimi Man
- Department of Pharmacology, University of California Davis, Davis, CA 95616, USA
| | - Emma Karey
- Department of Pharmacology, University of California Davis, Davis, CA 95616, USA
| | - Junyoung Hong
- Department of Pharmacology, University of California Davis, Davis, CA 95616, USA
| | - Johannes W Hell
- Department of Pharmacology, University of California Davis, Davis, CA 95616, USA
| | - Kent E Pinkerton
- Center for Health and the Environment, University of California, Davis, CA 95616, USA
| | - Chao-Yin Chen
- Department of Pharmacology, University of California Davis, Davis, CA 95616, USA
| | | |
Collapse
|
41
|
Liu C, Li X, Fu J, Chen K, Liao Q, Wang J, Chen C, Luo H, Jose PA, Yang Y, Yang J, Zeng C. Increased AT 1 receptor expression mediates vasoconstriction leading to hypertension in Snx1 -/- mice. Hypertens Res 2021; 44:906-917. [PMID: 33972750 PMCID: PMC8590203 DOI: 10.1038/s41440-021-00661-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 02/18/2021] [Accepted: 03/17/2021] [Indexed: 02/03/2023]
Abstract
Angiotensin II type 1 receptor (AT1R) is a vital therapeutic target for hypertension. Sorting nexin 1 (SNX1) participates in the sorting and trafficking of the renal dopamine D5 receptor, while angiotensin and dopamine are counterregulatory factors in the regulation of blood pressure. The effect of SNX1 on AT1R is not known. We hypothesized that SNX1, through arterial AT1R sorting and trafficking, is involved in blood pressure regulation. CRISPR/Cas9 system-generated SNX1-/- mice showed dramatic elevations in blood pressure compared to their wild-type littermates. The angiotensin II-mediated contractile reactivity of the mesenteric arteries and AT1R expression in the aortas were also increased. Moreover, immunofluorescence and immunoprecipitation analyses revealed that SNX1 and AT1R were colocalized and interacted in the aortas of wild-type mice. In vitro studies revealed that AT1R protein levels and downstream calcium signaling were upregulated in A10 cells treated with SNX1 siRNA. This may have resulted from decreased AT1R protein degradation since the AT1R mRNA levels showed no changes. AT1R protein was less degraded when SNX1 was downregulated, as reflected by a cycloheximide chase assay. Furthermore, proteasomal rather than lysosomal inhibition increased AT1R protein content, and this effect was accompanied by decayed binding of ubiquitin and AT1R after SNX1 knockdown. Confocal microscopy revealed that AT1R colocalized with PSMD6, a proteasomal marker, and the colocalization was reduced after SNX1 knockdown. These findings suggest that SNX1 sorts AT1R for proteasomal degradation and that SNX1 impairment increases arterial AT1R expression, leading to increased vasoconstriction and blood pressure.
Collapse
Affiliation(s)
- Chao Liu
- Department of Cardiology, Daping Hospital, The Third Military Medical University, Chongqing, China
- Chongqing Institute of Cardiology & Chongqing Key Laboratory of Hypertension Research, Chongqing, China
- Department of Emergency Medicine, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Xingyue Li
- Department of Cardiology, Daping Hospital, The Third Military Medical University, Chongqing, China
- College of Medicine, Southwest Jiaotong University, Chengdu, Sichuan, China
- Department of Cardiovascular Medicine, The General Hospital of Western Theater Command PLA, Chengdu, Sichuan, China
| | - Jinjuan Fu
- Department of Cardiology, Daping Hospital, The Third Military Medical University, Chongqing, China
- Chongqing Institute of Cardiology & Chongqing Key Laboratory of Hypertension Research, Chongqing, China
| | - Ken Chen
- Department of Cardiology, Daping Hospital, The Third Military Medical University, Chongqing, China
- Chongqing Institute of Cardiology & Chongqing Key Laboratory of Hypertension Research, Chongqing, China
| | - Qiao Liao
- Department of Cardiology, Daping Hospital, The Third Military Medical University, Chongqing, China
- Chongqing Institute of Cardiology & Chongqing Key Laboratory of Hypertension Research, Chongqing, China
| | - Jialiang Wang
- Department of Cardiology, Daping Hospital, The Third Military Medical University, Chongqing, China
- Chongqing Institute of Cardiology & Chongqing Key Laboratory of Hypertension Research, Chongqing, China
| | - Caiyu Chen
- Department of Cardiology, Daping Hospital, The Third Military Medical University, Chongqing, China
- Chongqing Institute of Cardiology & Chongqing Key Laboratory of Hypertension Research, Chongqing, China
| | - Hao Luo
- Department of Cardiology, Daping Hospital, The Third Military Medical University, Chongqing, China
- Chongqing Institute of Cardiology & Chongqing Key Laboratory of Hypertension Research, Chongqing, China
| | - Pedro A Jose
- Division of Renal Disease & Hypertension, The George Washington University School of Medicine and Health Sciences, Washington, DC, USA
| | - Yongjian Yang
- College of Medicine, Southwest Jiaotong University, Chengdu, Sichuan, China.
- Department of Cardiovascular Medicine, The General Hospital of Western Theater Command PLA, Chengdu, Sichuan, China.
| | - Jian Yang
- Department of Clinical Nutrition, The Third Affiliated Hospital of Chongqing Medical University, Chongqing, China.
| | - Chunyu Zeng
- Department of Cardiology, Daping Hospital, The Third Military Medical University, Chongqing, China.
- Chongqing Institute of Cardiology & Chongqing Key Laboratory of Hypertension Research, Chongqing, China.
- State Key Laboratory of Trauma, Burns and Combined Injury, Daping Hospital, The Third Military Medical University, Chongqing, China.
- Cardiovascular Research Center of Chongqing College, Department of Cardiology of Chongqing General Hospital, University of Chinese Academy of Sciences, Chongqing, China.
| |
Collapse
|
42
|
Murtada SI, Kawamura Y, Weiss D, Humphrey JD. Differential biomechanical responses of elastic and muscular arteries to angiotensin II-induced hypertension. J Biomech 2021; 119:110297. [PMID: 33647550 DOI: 10.1016/j.jbiomech.2021.110297] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 01/15/2021] [Accepted: 01/23/2021] [Indexed: 12/23/2022]
Abstract
Elastic and muscular arteries are distinguished by their distinct microstructures, biomechanical properties, and smooth muscle cell contractile functions. They also exhibit differential remodeling in aging and hypertension. Although regional differences in biomechanical properties have been compared, few studies have quantified biaxial differences in response to hypertension. Here, we contrast passive and active changes in large elastic and medium- and small-sized muscular arteries in adult mice in response to chronic infusion of angiotensin over 14 days. We found a significant increase in wall thickness, both medial and adventitial, in the descending thoracic aorta that associated with trends of an increased collagen:elastin ratio. There was adventitial thickening in the small-sized mesenteric artery, but also significant changes in elastic lamellar structure and contractility. An increased contractile response to phenylephrine coupled with a reduced vasodilatory response to acetylcholine in the mesenteric artery suggested an increased contractile state in response to hypertension. Overall reductions in the calculated gradients in pulse wave velocity and elastin energy storage capability from elastic-to-muscular arteries suggested a possible transfer of excessive pulsatile energy into the small-sized muscular arteries resulting in significant functional consequences in response to hypertension.
Collapse
Affiliation(s)
- S-I Murtada
- Department of Biomedical Engineering, Yale University, New Haven, CT, USA.
| | - Y Kawamura
- Department of Biomedical Engineering, Yale University, New Haven, CT, USA
| | - D Weiss
- Department of Biomedical Engineering, Yale University, New Haven, CT, USA
| | - J D Humphrey
- Department of Biomedical Engineering, Yale University, New Haven, CT, USA; Vascular Biology and Therapeutics Program, Yale School of Medicine, New Haven, CT, USA
| |
Collapse
|
43
|
KODAMA T, OTANI K, OKADA M, YAMAWAKI H. Age-dependent increase in activity of eukaryotic elongation factor 2 kinase in mesenteric arteries from spontaneously hypertensive rats. J Vet Med Sci 2021; 83:42-47. [PMID: 33191388 PMCID: PMC7870413 DOI: 10.1292/jvms.20-0564] [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] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Accepted: 10/31/2020] [Indexed: 11/22/2022] Open
Abstract
Eukaryotic elongation factor 2 (eEF2) kinase (eEF2K) negatively regulates protein translation through the phosphorylation of its specific substrate, eEF2. We previously found that expression of eEF2K was increased in arteries from 13-15-week-old spontaneously hypertensive rats (SHR) as well as in left ventricles of cardiac hypertrophy models. Furthermore, we demonstrated that eEF2K mediates the development of essential hypertension and pulmonary arterial hypertension in animal models. Protein expression changes with age during development of hypertension in SHR. In the present study, we examined whether activity and expression of eEF2K change in isolated mesenteric arteries dependent on the age. After superior mesenteric arteries were isolated from 4-10-week-old Wistar Kyoto rats (WKY) and SHR, Western blotting was performed. The phosphorylation of eEF2K at Ser500, an activating phosphorylation site, was increased in the arteries from 10-week-old SHR, whereas the phosphorylation of eEF2K at Ser366, an inactivating phosphorylation site, was increased in the arteries from 4-5-week-old SHR compared with WKY. The expression of eEF2K was increased in the arteries from 10-week-old SHR compared with WKY. The phosphorylation of eEF2 at Thr56 was decreased in the arteries from 4-5-week-old SHR, whereas it was increased in the arteries from 10-week-old SHR compared with WKY. We for the first time revealed that eEF2K activity is lower in prehypertensive stage but higher in hypertensive stage in SHR, suggesting that an inhibition of eEF2K activity may be a potential therapeutic strategy for the treatment of essential hypertension.
Collapse
Affiliation(s)
- Tomoko KODAMA
- Laboratory of Veterinary Pharmacology, School of Veterinary Medicine, Kitasato University, Higashi 23, Bancho 35-1, Towada, Aomori
034-8628, Japan
| | - Kosuke OTANI
- Laboratory of Veterinary Pharmacology, School of Veterinary Medicine, Kitasato University, Higashi 23, Bancho 35-1, Towada, Aomori
034-8628, Japan
| | - Muneyoshi OKADA
- Laboratory of Veterinary Pharmacology, School of Veterinary Medicine, Kitasato University, Higashi 23, Bancho 35-1, Towada, Aomori
034-8628, Japan
| | - Hideyuki YAMAWAKI
- Laboratory of Veterinary Pharmacology, School of Veterinary Medicine, Kitasato University, Higashi 23, Bancho 35-1, Towada, Aomori
034-8628, Japan
| |
Collapse
|
44
|
Amaravathi U, Balamurugan N, Muthu Pillai V, Ayyan SM. Superior Mesenteric Arterial and Venous Thrombosis in COVID-19. J Emerg Med 2021; 60:e103-e107. [PMID: 33581991 PMCID: PMC7833911 DOI: 10.1016/j.jemermed.2020.12.016] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [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] [Subscribe] [Scholar Register] [Received: 10/24/2020] [Revised: 12/07/2020] [Accepted: 12/15/2020] [Indexed: 12/16/2022]
Abstract
Background Patients with coronavirus disease 2019 (COVID-19) commonly present with fever, constitutional symptoms, and respiratory symptoms. However, atypical presentations are also well known. Though isolated mesenteric arterial occlusion associated with COVID-19 has been reported in literature, combined superior mesenteric arterial and venous thrombosis is rare. We report a case of combined superior mesenteric arterial and venous occlusion associated with COVID-19 infection. Case Report We report a case of a 45-year-old man who was a health care worker who presented to the emergency department with severe abdominal pain. The clinical examination was unremarkable, but imaging revealed acute mesenteric ischemia caused by superior mesenteric artery and superior mesenteric vein occlusion. Imaging of the chest was suggestive of COVID-19 infection, which was later confirmed with reverse transcription polymerase chain reaction of his nasopharyngeal swab. To date, only 1 case of combined superior mesenteric artery and superior mesenteric vein thrombosis caused by COVID-19 has been reported. Why Should an Emergency Physician Be Aware of This? During the COVID-19 pandemic it is important to keep mesenteric ischemia in the differential diagnosis of unexplained abdominal pain. Routinely adding high-resolution computed tomography of the chest to abdominal imaging should be considered in patients with acute abdomen because it can help to identify COVID-19 immediately. © 2020 Elsevier Inc.
Collapse
Affiliation(s)
- Uthayakumar Amaravathi
- Department of Emergency Medicine, Jawaharlal Institute of Postgraduate Medical Education and Research, Pondicherry, India
| | - Nathan Balamurugan
- Department of Emergency Medicine, Jawaharlal Institute of Postgraduate Medical Education and Research, Pondicherry, India
| | - Vivekanandan Muthu Pillai
- Department of Emergency Medicine, Jawaharlal Institute of Postgraduate Medical Education and Research, Pondicherry, India
| | - S Manu Ayyan
- Department of Emergency Medicine, Jawaharlal Institute of Postgraduate Medical Education and Research, Pondicherry, India
| |
Collapse
|
45
|
Gorshkova OP. [Characteristic of age-dependent changes in pial arterial vessels endothelium-dependent hyperpolarization in normotensive and spontaneously hypertensive rats.]. Adv Gerontol 2020; 33:663-672. [PMID: 33342095] [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] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
A comparative study of changes in the contribution of endothelium-dependent hyperpolarization (EDH) induced by activation of the intermediate-conductance calcium-activated potassium channels (IKса) channels and the contribution of NO in pial arterial vessels dilation to acetylcholine (ACh) in normotensive (WKY) and spontaneously hypertensive (SHR) rats at the age of 4 and 18 months was conducted. It was found that in WKY, the EDH is mainly expressed in the group of small pial arterial vessels. During aging, the contribution of EDH to the dilatation of small (diameter less than 20 microns) and medium (20-40 microns) vessels decreases, while it increases in arteries with a diameter of more than 40 microns. Hypertension (HT) leads to an increase in the contribution of EDH processes to dilation of vessels of small and medium diameters. Aging, accompanied by long-term HT, reduces the contribution of EDH to dilation. In 18-month-old SHR, this mechanism is expressed only in a group of small vessels. Age-dependent changes in the EDH contribution in pial arterial vessels dilation in WKY and SHR rats are based on the NO synthesis system damage and a change in the NO-mediated contribution in endothelium-dependent vasodilation.
Collapse
Affiliation(s)
- O P Gorshkova
- I.P.Pavlov Institute of Physiology RAS, 6 nab. Makarova, St. Petersburg 199034, Russian Federation, e-mail:
| |
Collapse
|
46
|
Wenk HH. [Revascularization of visceral arteries: is less more?]. Chirurg 2018; 89:925. [PMID: 30232501 DOI: 10.1007/s00104-018-0735-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- H H Wenk
- Zentrum für Chirurgie, Allgemein‑, Gefäß- u. Visceralchirurgie, Klinikum Bremen-Nord, Hammersbecker Str. 228, 28755, Bremen, Deutschland.
| |
Collapse
|
47
|
Gutsche H, Will U, Venth S, Lesser T. [Operative revascularization of visceral arteries in chronic mesenteric ischemia]. Chirurg 2018; 89:605-611. [PMID: 29808329 DOI: 10.1007/s00104-018-0650-1] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Chronic mesenteric ischemia (CMI) is mostly the result of atherosclerotic occlusive processes of unpaired mesenteric arteries. Operative procedures are preferred in cases of occlusion of a long vessel segments and/or highly calcified stenoses near the ostium. Frequently, bypasses are constucted from the aorta to visceral arteries and autologous veins should be preferred. Due to atherosclerotic alterations aortic bypass anastomoses are difficult and prone to complications. Based on case descriptions a surgical technique is presented that simplifies the aortovisceral artery bypass procedure. In all 6 patients the bypasses were open after 27 months and the average increase in body weight was 13 kg within the first postoperative 6 months.
Collapse
Affiliation(s)
- H Gutsche
- Klinik für Thorax- und Gefäßchirurgie, Angiologie, SRH Wald-Klinikum Gera, Str. des Friedens 122, 07548, Gera, Deutschland
| | - U Will
- Klinik für Gastroenterologie, Hepatologie und Allgemeine Innere Medizin, SRH Wald-Klinikum Gera, Gera, Deutschland
| | - S Venth
- Klinik für Thorax- und Gefäßchirurgie, Angiologie, SRH Wald-Klinikum Gera, Str. des Friedens 122, 07548, Gera, Deutschland
| | - T Lesser
- Klinik für Thorax- und Gefäßchirurgie, Angiologie, SRH Wald-Klinikum Gera, Str. des Friedens 122, 07548, Gera, Deutschland.
| |
Collapse
|
48
|
Boerman EM, Sen S, Shaw RL, Joshi T, Segal SS. Gene expression profiles of ion channels and receptors in mouse resistance arteries: Effects of cell type, vascular bed, and age. Microcirculation 2018; 25:e12452. [PMID: 29577514 PMCID: PMC5949082 DOI: 10.1111/micc.12452] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Accepted: 03/19/2018] [Indexed: 12/30/2022]
Abstract
OBJECTIVE Receptors and ion channels of smooth muscle cells (SMCs) and endothelial cells (ECs) are integral to the regulation of vessel diameter and tissue blood flow. Physiological roles of ion channels and receptors in skeletal muscle and mesenteric arteries have been identified; however, their gene expression profiles are undefined. We tested the hypothesis that expression profiles for ion channels and receptors governing vascular reactivity vary with cell type, vascular bed, and age. METHODS Mesenteric and superior epigastric arteries were dissected from Old (24-26 months) and Young (3-6 months) C57BL/6J mice. ECs and SMCs were collected for analysis with custom qRT-PCR arrays to determine expression profiles of 80 ion channel and receptor genes. Bioinformatics analyses were applied to gain insight into functional interactions. RESULTS We identified 68 differences in gene expression with respect to cell type, vessel type, and age. Heat maps illustrate differential expression, and distance matrices predict patterns of coexpression. Gene networks based upon protein-protein interaction datasets and KEGG pathways illustrate biological processes affected by specific differences in gene expression. CONCLUSIONS Differences in gene expression profiles are most pronounced between microvascular ECs and SMCs with subtle variations between vascular beds and age groups.
Collapse
Affiliation(s)
- Erika M. Boerman
- Medical Pharmacology and Physiology, School of Medicine, University of Missouri, Columbia, MO 65212
| | - Sidharth Sen
- MU Informatics Institute, University of Missouri, Columbia, MO 65211
| | - Rebecca L. Shaw
- Medical Pharmacology and Physiology, School of Medicine, University of Missouri, Columbia, MO 65212
| | - Trupti Joshi
- MU Informatics Institute, University of Missouri, Columbia, MO 65211
- Health Management and Informatics and Office of Research, School of Medicine, University of Missouri, Columbia, MO 65212
- Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, MO 65211
| | - Steven S. Segal
- Medical Pharmacology and Physiology, School of Medicine, University of Missouri, Columbia, MO 65212
- Dalton Cardiovascular Research Center, Columbia, MO 65211
| |
Collapse
|
49
|
Illuminati G, Pizzardi G, Calio' FG, Pasqua R, Masci F, Vietri F. Response to: reimplanting the superior mesenteric artery on the infra-renal aorta. Surgery 2017; 163:970-971. [PMID: 29249598 DOI: 10.1016/j.surg.2017.10.055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Accepted: 10/31/2017] [Indexed: 11/17/2022]
Affiliation(s)
- Giulio Illuminati
- Department of Surgical Sciences, The University of Rome "La Sapienza", Rome, Italy.
| | - Giulia Pizzardi
- Department of Surgical Sciences, The University of Rome "La Sapienza", Rome, Italy
| | | | - Rocco Pasqua
- Department of Surgical Sciences, The University of Rome "La Sapienza", Rome, Italy
| | - Federica Masci
- Department of Surgical Sciences, The University of Rome "La Sapienza", Rome, Italy
| | - Francesco Vietri
- Department of Surgical Sciences, The University of Rome "La Sapienza", Rome, Italy
| |
Collapse
|
50
|
Imai Y, Hirooka M, Koizumi Y, Nakamura Y, Watanabe T, Yoshida O, Tokumoto Y, Takeshita E, Abe M, Hiasa Y. [A case of an unruptured hepatic aneurysm on the common hepatic artery at the junction of the gastroduodenal and proper hepatic arteries treated with transcatheter arterial embolization]. Nihon Shokakibyo Gakkai Zasshi 2017; 114:99-103. [PMID: 28070101 DOI: 10.11405/nisshoshi.114.99] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Hepatic aneurysms are rare, but can prove fatal once they rupture. Transcatheter arterial embolization (TAE) is performed as a prophylactic treatment. The position of the aneurysm determines the degree of difficulty of TAE. Maintaining blood flow to the liver can become difficult, particularly when the aneurysm is at an arterial junction. The patient was a 72-year-old man diagnosed with a hepatic aneurysm. The aneurysm was situated on the common hepatic artery at the junction of the gastroduodenal and proper hepatic arteries. TAE was performed with framing, followed by coil embolization. Blood flow to the liver was maintained via the gastroduodenal artery. Appropriate framing is important for safe and efficient TAE.
Collapse
Affiliation(s)
- Yusuke Imai
- Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine
| | | | | | | | | | | | | | | | | | | |
Collapse
|