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Garella R, Cassioli E, Chellini F, Tani A, Rossi E, Idrizaj E, Guasti D, Comeglio P, Palmieri F, Parigi M, Vignozzi L, Baccari MC, Ricca V, Sassoli C, Castellini G, Squecco R. Defining the Molecular Mechanisms of the Relaxant Action of Adiponectin on Murine Gastric Fundus Smooth Muscle: Potential Translational Perspectives on Eating Disorder Management. Int J Mol Sci 2023; 24:ijms24021082. [PMID: 36674598 PMCID: PMC9867455 DOI: 10.3390/ijms24021082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 12/22/2022] [Accepted: 12/29/2022] [Indexed: 01/09/2023] Open
Abstract
Adiponectin (ADPN), a hormone produced by adipose tissue, facilitates gastric relaxation and can be a satiety signal in the network connecting peripheral organs and the central nervous system for feeding behavior control. Here, we performed preclinical research by morpho-functional analyses on murine gastric fundus smooth muscle to add insights into the molecular mechanisms underpinning ADPN action. Moreover, we conducted a clinical study to evaluate the potential use of ADPN as a biomarker for eating disorders (ED) based on the demonstrated gastric alterations and hormone level fluctuations that are often associated with ED. The clinical study recruited patients with ED and healthy controls who underwent blood draws for ADPN dosage and psychopathology evaluation tests. The findings of this basic research support the ADPN relaxant action, as indicated by the smooth muscle cell membrane pro-relaxant effects, with mild modifications of contractile apparatus and slight inhibitory effects on gap junctions. All of these actions engaged the ADPN/nitric oxide/guanylate cyclase pathway. The clinical data failed to unravel a correlation between ADPN levels and the considered ED, thus negating the potential use of ADPN as a valid biomarker for ED management for the moment. Nevertheless, this adipokine can modulate physiological eating behavior, and its effects deserve further investigation.
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Affiliation(s)
- Rachele Garella
- Department of Experimental and Clinical Medicine, Section of Physiological Sciences, University of Florence, 50134 Florence, Italy
| | - Emanuele Cassioli
- Department of Health Sciences, Psychiatry Unit, University of Florence, 50134 Firenze, Italy
| | - Flaminia Chellini
- Department of Experimental and Clinical Medicine, Section of Anatomy and Histology, Imaging Platform, University of Florence, 50134 Florence, Italy
| | - Alessia Tani
- Department of Experimental and Clinical Medicine, Section of Anatomy and Histology, Imaging Platform, University of Florence, 50134 Florence, Italy
| | - Eleonora Rossi
- Department of Health Sciences, Psychiatry Unit, University of Florence, 50134 Firenze, Italy
| | - Eglantina Idrizaj
- Department of Experimental and Clinical Medicine, Section of Physiological Sciences, University of Florence, 50134 Florence, Italy
| | - Daniele Guasti
- Department of Experimental and Clinical Medicine, Section of Anatomy and Histology, Imaging Platform, University of Florence, 50134 Florence, Italy
| | - Paolo Comeglio
- Department of Experimental Clinical and Biomedical Sciences “Mario Serio”, University of Florence, Viale Pieraccini, 6, 50139 Florence, Italy
| | - Francesco Palmieri
- Department of Experimental and Clinical Medicine, Section of Physiological Sciences, University of Florence, 50134 Florence, Italy
| | - Martina Parigi
- Department of Experimental and Clinical Medicine, Section of Anatomy and Histology, Imaging Platform, University of Florence, 50134 Florence, Italy
| | - Linda Vignozzi
- Department of Experimental Clinical and Biomedical Sciences “Mario Serio”, University of Florence, Viale Pieraccini, 6, 50139 Florence, Italy
| | - Maria Caterina Baccari
- Department of Experimental and Clinical Medicine, Section of Physiological Sciences, University of Florence, 50134 Florence, Italy
| | - Valdo Ricca
- Department of Health Sciences, Psychiatry Unit, University of Florence, 50134 Firenze, Italy
| | - Chiara Sassoli
- Department of Experimental and Clinical Medicine, Section of Anatomy and Histology, Imaging Platform, University of Florence, 50134 Florence, Italy
| | - Giovanni Castellini
- Department of Health Sciences, Psychiatry Unit, University of Florence, 50134 Firenze, Italy
| | - Roberta Squecco
- Department of Experimental and Clinical Medicine, Section of Physiological Sciences, University of Florence, 50134 Florence, Italy
- Correspondence: ; Tel.: +39-055-2751632
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Lobov GI, Ivanova GT. Regulation of Arterial Tone in Rats
Fed a Long-Term High-Salt Diet. J EVOL BIOCHEM PHYS+ 2021. [DOI: 10.1134/s0022093021010142] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Kesar S, Paliwal S, Mishra P, Madan K, Chauhan M, Chauhan N, Verma K, Sharma S. Identification of Novel Rho-Kinase-II Inhibitors with Vasodilatory Activity. ACS Med Chem Lett 2020; 11:1694-1703. [PMID: 32944136 DOI: 10.1021/acsmedchemlett.0c00126] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Accepted: 08/04/2020] [Indexed: 11/30/2022] Open
Abstract
Small GTPase protein Rho-kinase (ROCK) plays an important role in the pathogenesis of hypertension. Inhibition of ROCK II brings about the biochemical changes leading to vascular smooth muscles relaxation, finally resulting into potent antihypertensive activity. In the quest for potent ROCK-II inhibitors, a ligand-based pharmacophore containing four essential chemical features, namely two hydrogen bond acceptor (HBA), one hydrogen bond donor (HBD), and one hydrophobe (HY), was developed and rigorously validated. The pharmacophore was used for virtual screening, and hits retrieved from the National Cancer Institute (NCI) database were sorted on the basis of fit value, estimate value, and Lipinski's violation. Potential feature interaction of hits was also observed during docking studies with the amino acids present in the active site of Rho-kinase. Based on the above screening, three hits (NSC 2488, NSC 2888, and NSC 4231) were chosen and subjected to in vitro Rho-kinase enzyme-based assay, followed by ex vivo rat aortic vasodilatory assay. All three compounds showed good biological activity as predicted by the model and confirmed by the docking studies.
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Affiliation(s)
- Seema Kesar
- Department of Pharmacy, Banasthali Vidyapith, P. O. Banasthali-304022, Rajasthan, India
| | - Sarvesh Paliwal
- Department of Pharmacy, Banasthali Vidyapith, P. O. Banasthali-304022, Rajasthan, India
| | - Pooja Mishra
- Department of Pharmacy, Banasthali Vidyapith, P. O. Banasthali-304022, Rajasthan, India
| | - Kirtika Madan
- Department of Pharmacy, Banasthali Vidyapith, P. O. Banasthali-304022, Rajasthan, India
| | - Monika Chauhan
- Department of Pharmacy, Banasthali Vidyapith, P. O. Banasthali-304022, Rajasthan, India
| | - Neha Chauhan
- Department of Pharmacy, Banasthali Vidyapith, P. O. Banasthali-304022, Rajasthan, India
| | - Kanika Verma
- Department of Pharmacy, Banasthali Vidyapith, P. O. Banasthali-304022, Rajasthan, India
| | - Swapnil Sharma
- Department of Pharmacy, Banasthali Vidyapith, P. O. Banasthali-304022, Rajasthan, India
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The antioxidant status, lipid profile, and modulation of vascular function by fish oil supplementation in nano-copper and copper carbonate fed Wistar rats. J Funct Foods 2020. [DOI: 10.1016/j.jff.2019.103595] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
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Tripathi N, Paliwal S, Sharma S, Verma K, Gururani R, Tiwari A, Verma A, Chauhan M, Singh A, Kumar D, Pant A. Discovery of Novel Soluble Epoxide Hydrolase Inhibitors as Potent Vasodilators. Sci Rep 2018; 8:14604. [PMID: 30279487 PMCID: PMC6168526 DOI: 10.1038/s41598-018-32449-4] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Accepted: 08/09/2018] [Indexed: 01/27/2023] Open
Abstract
In view of the role of sEH (soluble epoxide hydrolase) in hypertension, we have developed a rigorously validated pharmacophore model containing one HBA (Hydrogen Bond Acceptor), two HY (Hydrophobic) and one RA (Ring Aromatic) features. The model was used as a query to search the NCI (National Cancer Institute) and Maybridge database leading to retrieval of many compounds which were sorted on the basis of predicted activity, fit value and Lipinski’s violation. The selected compounds were docked into the active site of enzyme soluble epoxide hydrolase. Potential interactions were observed between the features of the identified hits and the amino acids present in the docking site. The three selected compounds were subjected to in vitro evaluation using enzyme- based assay and the isolated rat aortic model followed by cytotoxicity studies. The results demonstrate that the identified compounds are potent, safe and novel soluble epoxide hydrolase inhibitors.
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Affiliation(s)
- Neetika Tripathi
- Department of Pharmacy, Banasthali University, P. O. Banasthali, 304022, Rajasthan, India
| | - Sarvesh Paliwal
- Department of Pharmacy, Banasthali University, P. O. Banasthali, 304022, Rajasthan, India.
| | - Swapnil Sharma
- Department of Pharmacy, Banasthali University, P. O. Banasthali, 304022, Rajasthan, India
| | - Kanika Verma
- Department of Pharmacy, Banasthali University, P. O. Banasthali, 304022, Rajasthan, India
| | - Ritika Gururani
- Department of Pharmacy, Banasthali University, P. O. Banasthali, 304022, Rajasthan, India
| | - Akanksha Tiwari
- Department of Pharmacy, Banasthali University, P. O. Banasthali, 304022, Rajasthan, India
| | - Amrita Verma
- Department of Pharmacy, Banasthali University, P. O. Banasthali, 304022, Rajasthan, India
| | - Monika Chauhan
- Department of Pharmacy, Banasthali University, P. O. Banasthali, 304022, Rajasthan, India
| | - Aarti Singh
- Department of Pharmacy, Banasthali University, P. O. Banasthali, 304022, Rajasthan, India
| | - Dipak Kumar
- Indian Institute of Toxicology Research, Mahatma Gandhi Marg, Post Box No- 80, Lucknow, 226001, UP, India
| | - Aditya Pant
- Indian Institute of Toxicology Research, Mahatma Gandhi Marg, Post Box No- 80, Lucknow, 226001, UP, India
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Marir R, Virsolvy A, Wisniewski K, Mion J, Haddou D, Galibert E, Meraihi Z, Desarménien MG, Guillon G. Pharmacological characterization of FE 201874, the first selective high affinity rat V1A vasopressin receptor agonist. Br J Pharmacol 2014; 170:278-92. [PMID: 23725319 DOI: 10.1111/bph.12249] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2012] [Revised: 05/03/2013] [Accepted: 05/20/2013] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND AND PURPOSE Distinct vasopressin receptors are involved in different physiological and behavioural functions. Presently, no selective agonist is available to specifically elucidate the functional roles of the V1A receptor in the rat, one of the most widely used animal models. FE 201874 is a new derivative of the human selective V1A receptor agonist F180. In this study, we performed a multi-approach pharmacological and functional characterization of FE 201874 to determine whether it is selective for V1A receptors. EXPERIMENTAL APPROACH We modified an available human selective V1A receptor agonist (F180) and determined its pharmacological properties in cell lines expressing vasopressin/oxytocin receptors (affinity and coupling to second messenger cascades), in an ex vivo model (aorta ring contraction) and in vivo in rats (proliferation of adrenal cortex glomerulosa cells and lactation). KEY RESULTS FE 201874 exhibited nanomolar affinity for the rat V1A receptor; it was highly selective towards the rat V1B and V2 vasopressin receptors and behaved as a full V1A agonist in all the pharmacological tests performed. FE 201874 bound to the oxytocin receptor, but with moderate affinity, and behaved as an oxytocin antagonist in vitro, but not in vivo. CONCLUSIONS AND IMPLICATIONS On functional grounds, all the data demonstrate that FE 201874 is the first selective agonist of the rat V1A receptor isoform available. Hence, FE 201874 may have potential as a treatment for the vasodilator-induced hypotension occurring in conditions such as septic shock and could be the most suitable compound for discriminating between the behavioural effects of arginine vasopressin and oxytocin.
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Affiliation(s)
- Rafik Marir
- CNRS, UMR-5203, Institut de Génomique Fonctionnelle, Montpellier, F-34094, France; INSERM, U661, Montpellier, F-34094, France; Universités de Montpellier 1 & 2, UMR-5203, Montpellier, F-34094, France; Université Constantine 1, Faculté des sciences de la nature et de la vie, Constantine, Algérie
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Kong X, Ma MZ, Qin L, Zhang Y, Li XY, Wang GD, Su Q, Zhang DY. Pioglitazone enhances the blood pressure-lowering effect of losartan via synergistic attenuation of angiotensin II-induced vasoconstriction. J Renin Angiotensin Aldosterone Syst 2013; 15:259-70. [PMID: 23676251 DOI: 10.1177/1470320313489061] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
INTRODUCTION This study was designed to investigate the underlying mechanisms of synergistic antihypertensive effect produced by combination therapy of losartan and pioglitazone in metabolic syndrome (MS) rats. MATERIALS AND METHODS An MS model was induced by feeding rats a high-fat, high-sodium diet and 20% sucrose solution. Losartan (20 mg/kg/day), pioglitazone (10 mg/kg/day), and their combination were orally administered for eight consecutive weeks. Systolic blood pressure (SBP) and mean arterial pressure (MAP) were measured using the tail-cuff method and carotid arterial catheterization, respectively. The aortas were isolated and in vitro vascular reactivity studies were performed. The protein expression of angiotensin type 1 receptor (AT1), endothelial nitric oxide synthase (eNOS), phosphorylated eNOS and nicotinamide adenine dinucleotide phosphate (NADPH) oxidase subunit p47(phox), level of nitrotyrosine as well as activity of eNOS and NADPH oxidase in aortas of MS rats were detected. RESULTS After eight weeks of treatment, the SBP and MAP in the losartan (115 ± 5 and 106 ± 6 mmHg), pioglitazone (130 ± 6 and 118 ± 6 mmHg), and combination therapy (105 ± 6 and 98 ± 5 mmHg) groups were lower than those in the model group (150 ± 8 and 136 ± 9 mmHg). Combination therapy of losartan and pioglitazone reduced BP more than either monotherapy, and showed additive effects on improving endothelial dysfunction and abolishing the increased vascular responsiveness to angiotensin II. These synergistic effects were associated with further reductions in protein expression of p47(phox) and AT1, NADPH oxidase activity, and nitrotyrosine level. CONCLUSIONS Our data indicate that combined treatment exerts more beneficial effects on lowering BP and improving vascular lesions.
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Affiliation(s)
- Xiang Kong
- Department of Endocrinology, Xinhua Hospital,Shanghai Jiaotong University School of Medicine, China Department of Pharmacology, Third-Grade Pharmacology Laboratory of State Administration of Traditional Chinese Medicine, Wannan Medical College,China
| | - Ming-Zhe Ma
- Department of General Surgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, China
| | - Li Qin
- Department of Endocrinology, Xinhua Hospital,Shanghai Jiaotong University School of Medicine, China
| | - Yan Zhang
- Department of Gastroenterology,Yijishan Hospital Affiliated to Wannan Medical College, China
| | - Xiao-Yong Li
- Department of Endocrinology, Xinhua Hospital,Shanghai Jiaotong University School of Medicine, China
| | - Guo-Dong Wang
- Department of Pharmacy, Wannan Medical College,China
| | - Qing Su
- Department of Endocrinology, Xinhua Hospital,Shanghai Jiaotong University School of Medicine, China
| | - Dao-You Zhang
- Department of Nephrology,Yijishan Hospital Affiliated to Wannan Medical College, China
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Donzelli S, Fischer G, King BS, Niemann C, DuMond JF, Heeren J, Wieboldt H, Baldus S, Gerloff C, Eschenhagen T, Carrier L, Böger RH, Espey MG. Pharmacological characterization of 1-nitrosocyclohexyl acetate, a long-acting nitroxyl donor that shows vasorelaxant and antiaggregatory effects. J Pharmacol Exp Ther 2012; 344:339-47. [PMID: 23211362 DOI: 10.1124/jpet.112.199836] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Nitroxyl (HNO) donors have potential benefit in the treatment of heart failure and other cardiovascular diseases. 1-Nitrosocyclohexyl acetate (NCA), a new HNO donor, in contrast to the classic HNO donors Angeli's salt and isopropylamine NONOate, predominantly releases HNO and has a longer half-life. This study investigated the vasodilatative properties of NCA in isolated aortic rings and human platelets and its mechanism of action. NCA was applied on aortic rings isolated from wild-type mice and apolipoprotein E-deficient mice and in endothelial-denuded aortae. The mechanism of action of HNO was examined by applying NCA in the absence and presence of the HNO scavenger glutathione (GSH) and inhibitors of soluble guanylyl cyclase (sGC), adenylyl cyclase (AC), calcitonin gene-related peptide receptor (CGRP), and K(+) channels. NCA induced a concentration-dependent relaxation (EC(50), 4.4 µM). This response did not differ between all groups, indicating an endothelium-independent relaxation effect. The concentration-response was markedly decreased in the presence of excess GSH; the nitric oxide scavenger 2-(4-carboxyphenyl)-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide had no effect. Inhibitors of sGC, CGRP, and voltage-dependent K(+) channels each significantly impaired the vasodilator response to NCA. In contrast, inhibitors of AC, ATP-sensitive K(+) channels, or high-conductance Ca(2+)-activated K(+) channels did not change the effects of NCA. NCA significantly reduced contractile response and platelet aggregation mediated by the thromboxane A(2) mimetic 9,11-dideoxy-11α,9α-epoxymethanoprostaglandin F(2)(α) in a cGMP-dependent manner. In summary, NCA shows vasoprotective effects and may have a promising profile as a therapeutic agent in vascular dysfunction, warranting further evaluation.
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Affiliation(s)
- Sonia Donzelli
- Department of Experimental Pharmacology and Toxicology, University Medical Center Hamburg-Eppendorf., Martinistr. 52, D-20246 Hamburg, Germany.
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Cordaillat M, Reboul C, Gaillard V, Lartaud I, Jover B, Rugale C. Plasma volume and arterial stiffness in the cardiac alterations associated with long-term high sodium feeding in rats. Am J Hypertens 2011; 24:451-7. [PMID: 21233801 DOI: 10.1038/ajh.2010.260] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND Rats fed an early and long-term high-salt diet (HS, NaCl 8%) developed significant cardiovascular hypertrophy without major changes in blood pressure. The mechanism of this cardiac hypertrophy has not been yet elucidated. METHODS In the present work, we assessed the influence of volume overload and arterial stiffness on the structural and functional cardiac changes induced by a high salt feeding from weaning to 5 months of age in Sprague-Dawley rats. RESULTS Cardiac hypertrophy in HS rats was associated with clear augmentation in the size of left ventricular (LV) cardiomyocyte as compared with rats fed regular diet (NS). Echocardiography revealed a marked increase in relative wall thickness. Of note, no alteration of global and regional systolic and diastolic function was detected in HS rats. High sodium consumption was associated with a slight increase in aortic mean and pulse pressure (PP) without effect on pulse wave velocity (PWV) and elastic modulus. Plasma volume and central venous pressure were higher in HS than NS rats. Whereas plasma endothelin level was twofold higher in HS than in NS rats, LV endothelin level was similar in both groups. Treatment by the endothelin receptors blocker bosentan had no detectable effect on the changes induced by HS diet. CONCLUSIONS High sodium intake was associated with concentric cardiac hypertrophy without change of systolic and diastolic function. Aortic rigidity was not a determinant of cardiac hypertrophy. Beside a likely direct effect of sodium on cardiovascular system the slight increase in arterial pressure and plasma volume play a role.
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Fort A, Cordaillat M, Thollon C, Salazar G, Mechaly I, Villeneuve N, Vilaine JP, Richard S, Virsolvy A. New insights in the contribution of voltage-gated Na(v) channels to rat aorta contraction. PLoS One 2009; 4:e7360. [PMID: 19809503 PMCID: PMC2752992 DOI: 10.1371/journal.pone.0007360] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2009] [Accepted: 09/14/2009] [Indexed: 01/17/2023] Open
Abstract
Background Despite increasing evidence for the presence of voltage-gated Na+ channels (Nav) isoforms and measurements of Nav channel currents with the patch-clamp technique in arterial myocytes, no information is available to date as to whether or not Nav channels play a functional role in arteries. The aim of the present work was to look for a physiological role of Nav channels in the control of rat aortic contraction. Methodology/Principal Findings Nav channels were detected in the aortic media by Western blot analysis and double immunofluorescence labeling for Nav channels and smooth muscle α-actin using specific antibodies. In parallel, using real time RT-PCR, we identified three Nav transcripts: Nav1.2, Nav1.3, and Nav1.5. Only the Nav1.2 isoform was found in the intact media and in freshly isolated myocytes excluding contamination by other cell types. Using the specific Nav channel agonist veratridine and antagonist tetrodotoxin (TTX), we unmasked a contribution of these channels in the response to the depolarizing agent KCl on rat aortic isometric tension recorded from endothelium-denuded aortic rings. Experimental conditions excluded a contribution of Nav channels from the perivascular sympathetic nerve terminals. Addition of low concentrations of KCl (2–10 mM), which induced moderate membrane depolarization (e.g., from −55.9±1.4 mV to −45.9±1.2 mV at 10 mmol/L as measured with microelectrodes), triggered a contraction potentiated by veratridine (100 µM) and blocked by TTX (1 µM). KB-R7943, an inhibitor of the reverse mode of the Na+/Ca2+ exchanger, mimicked the effect of TTX and had no additive effect in presence of TTX. Conclusions/Significance These results define a new role for Nav channels in arterial physiology, and suggest that the TTX-sensitive Nav1.2 isoform, together with the Na+/Ca2+ exchanger, contributes to the contractile response of aortic myocytes at physiological range of membrane depolarization.
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Affiliation(s)
- Aurélie Fort
- Inserm U637, Université Montpellier1 & 2, Montpellier, France
| | | | - Catherine Thollon
- Cardiovascular Division, Institut de Recherches Servier, Suresnes, France
| | | | - Ilana Mechaly
- Inserm U583, Université Montpellier2, Montpellier, France
| | - Nicole Villeneuve
- Cardiovascular Division, Institut de Recherches Servier, Suresnes, France
| | - Jean-Paul Vilaine
- Cardiovascular Division, Institut de Recherches Servier, Suresnes, France
| | - Sylvain Richard
- Inserm U637, Université Montpellier1 & 2, Montpellier, France
- * E-mail:
| | - Anne Virsolvy
- Inserm U637, Université Montpellier1 & 2, Montpellier, France
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Terlipressin, a provasopressin drug exhibits direct vasoconstrictor properties: consequences on heart perfusion and performance. Crit Care Med 2009; 37:876-81. [PMID: 19237891 DOI: 10.1097/ccm.0b013e31819b8199] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVE Terlipressin has been proposed as an alternative treatment to catecholamines to restore blood pressure in septic shock. Terlipressin is considered as a vasopressin prodrug capable of releasing small but sustained amounts of [Lysine] vasopressin (LVP) and to provide prolonged biological effect. However, terlipressin may act as a direct vasopressor beyond its conversion into LVP. We investigated terlipressin direct vasoconstrictive properties and consequences on myocardial perfusion and performance. DESIGN Experimental studies. SETTINGS National Research Institute Laboratories. SUBJECTS Rat aorta and heart, human uterine artery. INTERVENTIONS Studies of vasoconstriction on isolated vascular rings obtained either from rat aorta or human uterine artery, and of coronary flow, ventricular performance, and heart rhythm on rat hearts using a modified Langendorff heart apparatus. MEASUREMENTS AND MAIN RESULTS Terlipressin induced a rapid, saturable, and dose-dependent contraction of rat aortas and human uterine arteries. Although the maximal terlipressin-induced vasoconstriction observed on rat arteries was weaker than LVP, or arginine-vasopressin, pharmacologic properties on human arteries, such as full agonism and strong maximal effect (900% of the maximal response obtained with phenylephrine), suggest a high potential of terlipressin to directly vasoconstrict human vessels. Similarly, terlipressin induced a saturable and dose-dependent vasoconstriction of coronary arteries that was reversible and antagonized by selective V1a antagonists. Maximum rates of left ventricle pressure rise (dP/dtmax) and fall (dP/dtmin) decreased both only in proportion to the decrease in coronary flow. CONCLUSIONS Besides long lasting effect through slow conversion into LVP, terlipressin is a fast acting vasopressor peptide per se that has an impact on coronary circulation and myocardial function.
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Rugale C, Cordaillat M, Mimran A, Jover B. TIME-COURSE REDUCTION OF RENAL FUNCTION IN RATS ON HIGH SODIUM INTAKE: ACUTE REVERSAL BY POTASSIUM CANRENOATE. Clin Exp Pharmacol Physiol 2008; 35:412-5. [DOI: 10.1111/j.1440-1681.2008.04888.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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