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Grman M, Balis P, Berenyiova A, Svajdlenkova H, Tomasova L, Cacanyiova S, Rostakova Z, Waczulikova I, Chovanec M, Domínguez-Álvarez E, Ondrias K, Misak A. Products of Selenite/Thiols Interaction Have Reducing Properties, Cleave Plasmid DNA and Decrease Rat Blood Pressure and Tension of Rat Mesenteric Artery. Biol Trace Elem Res 2024:10.1007/s12011-024-04196-3. [PMID: 38676879 DOI: 10.1007/s12011-024-04196-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Accepted: 04/20/2024] [Indexed: 04/29/2024]
Abstract
Selenium compounds exert their antioxidant activity mostly when the selenium atom is incorporated into selenoproteins. In our work, we tested the possibility that selenite itself interacts with thiols to form active species that have reducing properties. Therefore, we studied the reduction of 2-(4-carboxyphenyl)-4,5-dihydro-4,4,5,5-tetramethyl-1H-imidazol-1-yloxy-3-oxide radical (•cPTIO), damage of plasmid DNA (pDNA), modulation of rat hemodynamic parameters and tension of isolated arteries induced by products of interaction of selenite with thiols. We found that the products of selenite interaction with thiols had significant reducing properties that could be attributed mainly to the selenide and that selenite had catalytic properties in the access of thiols. The potency of thiols to reduce •cPTIO in the interaction with selenite was cysteine > homocysteine > glutathione reduced > N-acetylcysteine. Thiol/selenite products cleaved pDNA, with superoxide dismutase enhancing these effects suggesting a positive involvement of superoxide anion in the process. The observed •cPTIO reduction and pDNA cleavage were significantly lower when selenomethionine was used instead of selenite. The products of glutathione/selenite interaction affected several hemodynamic parameters including rat blood pressure decrease. Notably, the products relaxed isolated mesenteric artery, which may explain the observed decrease in rat blood pressure. In conclusion, we found that the thiol/selenite interaction products exhibited significant reducing properties which can be used in further studies of the treatment of pathological conditions caused by oxidative stress. The results of decreased rat blood pressure and the tension of mesenteric artery may be perspective in studies focused on cardiovascular disease and their prevention.
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Affiliation(s)
- Marian Grman
- Institute of Clinical and Translational Research, Biomedical Research Center, Slovak Academy of Sciences, Dubravska Cesta 9, 845 05, Bratislava, Slovak Republic
| | - Peter Balis
- Institute of Normal and Pathological Physiology, Centre of Experimental Medicine, Slovak Academy of Sciences, Sienkiewiczova 1, 813 71, Bratislava, Slovak Republic
| | - Andrea Berenyiova
- Institute of Normal and Pathological Physiology, Centre of Experimental Medicine, Slovak Academy of Sciences, Sienkiewiczova 1, 813 71, Bratislava, Slovak Republic
| | - Helena Svajdlenkova
- Polymer Institute, Slovak Academy of Sciences, Dubravska Cesta 9, 845 41, Bratislava, Slovak Republic
- Department of Nuclear Chemistry, Faculty of Natural Sciences, Comenius University, Ilkovicova 6, 842 15, Bratislava, Slovak Republic
| | - Lenka Tomasova
- Institute of Clinical and Translational Research, Biomedical Research Center, Slovak Academy of Sciences, Dubravska Cesta 9, 845 05, Bratislava, Slovak Republic
| | - Sona Cacanyiova
- Institute of Normal and Pathological Physiology, Centre of Experimental Medicine, Slovak Academy of Sciences, Sienkiewiczova 1, 813 71, Bratislava, Slovak Republic
| | - Zuzana Rostakova
- Institute of Measurement Science, Slovak Academy of Sciences, Dubravska Cesta 9, 841 04, Bratislava, Slovak Republic
| | - Iveta Waczulikova
- Department of Nuclear Physics and Biophysics, Faculty of Mathematics, Physics and Informatics, Comenius University, Mlynska Dolina F1, 842 48, Bratislava, Slovak Republic
| | - Miroslav Chovanec
- Cancer Research Institute, Slovak Academy of Sciences, Dubravska Cesta 9, 845 05, Bratislava, Slovak Republic
| | | | - Karol Ondrias
- Institute of Clinical and Translational Research, Biomedical Research Center, Slovak Academy of Sciences, Dubravska Cesta 9, 845 05, Bratislava, Slovak Republic
| | - Anton Misak
- Institute of Clinical and Translational Research, Biomedical Research Center, Slovak Academy of Sciences, Dubravska Cesta 9, 845 05, Bratislava, Slovak Republic.
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Misak A, Grman M, Tomasova L, Makara O, Rostakova Z, Waczulikova I, Ondrias K. Use of a rat model to characterize 35 arterial pulse wave parameters in a comparative study of isoflurane and Zoletil/xylazine anesthesia and the effect of Acanthopanax senticosus extract. Animal Model Exp Med 2023; 6:474-488. [PMID: 37828718 PMCID: PMC10614128 DOI: 10.1002/ame2.12354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Accepted: 09/19/2023] [Indexed: 10/14/2023] Open
Abstract
BACKGROUND Information obtained from arterial pulse waveforms (APW) can be useful for characterizing the cardiovascular system. To achieve this, it is necessary to know the detailed characteristics of APWs in different states of an organism, which would allow APW parameters (APW-Ps) to be assigned to particular (patho)physiological conditions. Therefore, our work aimed to characterize 35 APW-Ps in rats under the influence of isoflurane (ISO) and Zoletil/xylazine (ZO/XY) anesthesia and to study the effect of root extract from Acanthopanax senticosus (ASRE) in these anesthetic conditions. METHODS The right jugular vein of anesthetized rats was cannulated for the administration of ASRE and the left carotid artery for the detection of APWs from which 35 APW-Ps were evaluated. RESULTS We obtained data on 35 APW-Ps, which significantly depended on the anesthesia, and thus, they characterized the cardiovascular system under these two conditions. ASRE transiently modulated all 35 APW-Ps, including a transient decrease in systolic and diastolic blood pressure (BP) and heart rate or increases in pulse BP, dP/dtmax , and systolic and diastolic areas. Whereas the transient effects of ASRE were similar, the extract had prolonged disturbing effects on the cardiovascular system in rats under ZO/XY but not under ISO anesthesia. This negative effect can result from the disturbance caused by ZO/XY anesthesia on the cardiovascular system. CONCLUSIONS We characterized 35 APW-Ps of rats under ISO and ZO/XY anesthesia and found that ASRE contains compounds that can modulate the properties of the cardiovascular system, which significantly depended on the status of the cardiovascular system. This should be considered when using ASRE as a nutritional supplement by individuals with cardiovascular problems.
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Affiliation(s)
- Anton Misak
- Institute of Clinical and Translational Research, Department of Molecular Physiology, Biomedical Research CenterSlovak Academy of SciencesBratislavaSlovak Republic
| | - Marian Grman
- Institute of Clinical and Translational Research, Department of Molecular Physiology, Biomedical Research CenterSlovak Academy of SciencesBratislavaSlovak Republic
| | - Lenka Tomasova
- Institute of Clinical and Translational Research, Department of Molecular Physiology, Biomedical Research CenterSlovak Academy of SciencesBratislavaSlovak Republic
| | - Ondrej Makara
- Forest Arboretum Liptovsky HradokLiptovsky HradokSlovak Republic
| | - Zuzana Rostakova
- Institute of Measurement Science, Department of Theoretical MethodsSlovak Academy of SciencesBratislavaSlovak Republic
| | - Iveta Waczulikova
- Faculty of Mathematics, Physics and InformaticsComenius UniversityBratislavaSlovak Republic
| | - Karol Ondrias
- Institute of Clinical and Translational Research, Department of Molecular Physiology, Biomedical Research CenterSlovak Academy of SciencesBratislavaSlovak Republic
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Balis P, Berenyiova A, Misak A, Grman M, Rostakova Z, Waczulikova I, Cacanyiova S, Domínguez-Álvarez E, Ondrias K. The Phthalic Selenoanhydride Decreases Rat Blood Pressure and Tension of Isolated Mesenteric, Femoral and Renal Arteries. Molecules 2023; 28:4826. [PMID: 37375381 DOI: 10.3390/molecules28124826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Revised: 06/12/2023] [Accepted: 06/14/2023] [Indexed: 06/29/2023] Open
Abstract
Phthalic selenoanhydride (R-Se) solved in physiological buffer releases various reactive selenium species including H2Se. It is a potential compound for Se supplementation which exerts several biological effects, but its effect on the cardiovascular system is still unknown. Therefore, herein we aimed to study how R-Se affects rat hemodynamic parameters and vasoactive properties in isolated arteries. The right jugular vein of anesthetized Wistar male rats was cannulated for IV administration of R-Se. The arterial pulse waveform (APW) was detected by cannulation of the left carotid artery, enabling the evaluation of 35 parameters. R-Se (1-2 µmol kg-1), but not phthalic anhydride or phthalic thioanhydride, transiently modulated most of the APW parameters including a decrease in systolic and diastolic blood pressure, heart rate, dP/dtmax relative level, or anacrotic/dicrotic notches, whereas systolic area, dP/dtmin delay, dP/dtd delay, anacrotic notch relative level or its delay increased. R-Se (~10-100 µmol L-1) significantly decreased the tension of precontracted mesenteric, femoral, and renal arteries, whereas it showed a moderate vasorelaxation effect on thoracic aorta isolated from normotensive Wistar rats. The results imply that R-Se acts on vascular smooth muscle cells, which might underlie the effects of R-Se on the rat hemodynamic parameters.
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Affiliation(s)
- Peter Balis
- Institute of Normal and Pathological Physiology, Centre of Experimental Medicine, Slovak Academy of Sciences, 841 04 Bratislava, Slovakia
| | - Andrea Berenyiova
- Institute of Normal and Pathological Physiology, Centre of Experimental Medicine, Slovak Academy of Sciences, 841 04 Bratislava, Slovakia
| | - Anton Misak
- Institute of Clinical and Translational Research, Biomedical Research Center, Slovak Academy of Sciences, 845 05 Bratislava, Slovakia
| | - Marian Grman
- Institute of Clinical and Translational Research, Biomedical Research Center, Slovak Academy of Sciences, 845 05 Bratislava, Slovakia
| | - Zuzana Rostakova
- Institute of Measurement Science, Slovak Academy of Sciences, Dubravska Cesta 9, 841 04 Bratislava, Slovakia
| | - Iveta Waczulikova
- Faculty of Mathematics, Physics and Informatics, Comenius University, Mlynska Dolina F1, 842 48 Bratislava, Slovakia
| | - Sona Cacanyiova
- Institute of Normal and Pathological Physiology, Centre of Experimental Medicine, Slovak Academy of Sciences, 841 04 Bratislava, Slovakia
| | - Enrique Domínguez-Álvarez
- Instituto de Química Orgánica General (IQOG), Consejo Superior de Investigaciones Científicas CSIC, Juan de la Cierva 3, 28006 Madrid, Spain
| | - Karol Ondrias
- Institute of Clinical and Translational Research, Biomedical Research Center, Slovak Academy of Sciences, 845 05 Bratislava, Slovakia
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Oyagbemi AA, Adejumobi OA, Jarikre TA, Ajani OS, Asenuga ER, Gbadamosi IT, Adedapo ADA, Aro AO, Ogunpolu BS, Hassan FO, Falayi OO, Ogunmiluyi IO, Omobowale TO, Arojojoye OA, Ola-Davies OE, Saba AB, Adedapo AA, Emikpe BO, Oyeyemi MO, Nkadimeng SM, McGaw LJ, Kayoka-Kabongo PN, Oguntibeju OO, Yakubu MA. Clofibrate, a Peroxisome Proliferator-Activated Receptor-Alpha (PPARα) Agonist, and Its Molecular Mechanisms of Action against Sodium Fluoride-Induced Toxicity. Biol Trace Elem Res 2022; 200:1220-1236. [PMID: 33893992 DOI: 10.1007/s12011-021-02722-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Accepted: 04/12/2021] [Indexed: 01/16/2023]
Abstract
Sodium fluoride (NaF) is one of the neglected environmental pollutants. It is ubiquitously found in the soil, water, and environment. Interestingly, fluoride has been extensively utilized for prevention of dental caries and tartar formation, and may be added to mouthwash, mouth rinse, and toothpastes. This study is aimed at mitigating fluoride-induced hypertension and nephrotoxicity with clofibrate, a peroxisome proliferator-activated receptor-alpha (PPARα) agonist. For this study, forty male Wistar rats were used and randomly grouped into ten rats per group, control, sodium fluoride (NaF; 300 ppm) only, NaF plus clofibrate (250 mg/kg) and NaF plus lisinopril (10 mg/kg), respectively, for 7 days. The administration of NaF was by drinking water ad libitum, while clofibrate and lisinopril were administered by oral gavage. Administration of NaF induced hypertension, and was accompanied with exaggerated oxidative stress; depletion of antioxidant defence system; reduced nitric oxide production; increased systolic, diastolic and mean arterial pressure; activation of angiotensin-converting enzyme activity and nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB); and testicular apoptosis. Treatment of rats with clofibrate reduced oxidative stress, improved antioxidant status, lowered high blood pressure through the inhibition of angiotensin-converting enzyme activity, mineralocorticoid receptor over-activation, and abrogated testicular apoptosis. Taken together, clofibrate could offer exceptional therapeutic benefit in mitigating toxicity associated with sodium fluoride.
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Affiliation(s)
- Ademola Adetokunbo Oyagbemi
- Department of Veterinary Physiology and Biochemistry, Faculty of Veterinary Medicine, University of Ibadan, Ibadan, Nigeria.
| | - Olumuyiwa Abiola Adejumobi
- Department of Veterinary Medicine, Faculty of Veterinary Medicine, University of Ibadan, Ibadan, Nigeria
| | - Theophilus Aghogho Jarikre
- Department of Veterinary Pathology, Faculty of Veterinary Medicine, University of Ibadan, Ibadan, Nigeria
| | - Olumide Samuel Ajani
- Department of Theriogenology, Faculty of Veterinary Medicine, University of Ibadan, Ibadan, Nigeria
| | - Ebunoluwa Racheal Asenuga
- Department of Veterinary Physiology and Biochemistry, Faculty of Veterinary Medicine, University of Benin, Benin, Nigeria
| | | | | | - Abimbola Obemisola Aro
- Department of Agriculture and Animal Health, College of Agriculture and Environmental Sciences, University of South Africa, Florida, South Africa
| | - Blessing Seun Ogunpolu
- Department of Veterinary Medicine, Faculty of Veterinary Medicine, University of Ibadan, Ibadan, Nigeria
| | - Fasilat Oluwakemi Hassan
- Department of Veterinary Physiology and Biochemistry, Faculty of Veterinary Medicine, University of Ibadan, Ibadan, Nigeria
| | - Olufunke Olubunmi Falayi
- Department of Veterinary Pharmacology and Toxicology, Faculty of Veterinary Medicine, University of Ibadan, Ibadan, Nigeria
| | - Iyanuoluwa Omolola Ogunmiluyi
- Department of Veterinary Pharmacology and Toxicology, Faculty of Veterinary Medicine, University of Ibadan, Ibadan, Nigeria
| | - Temidayo Olutayo Omobowale
- Department of Veterinary Medicine, Faculty of Veterinary Medicine, University of Ibadan, Ibadan, Nigeria
| | | | - Olufunke Eunice Ola-Davies
- Department of Veterinary Physiology and Biochemistry, Faculty of Veterinary Medicine, University of Ibadan, Ibadan, Nigeria
| | - Adebowale Benard Saba
- Department of Veterinary Pharmacology and Toxicology, Faculty of Veterinary Medicine, University of Ibadan, Ibadan, Nigeria
| | - Adeolu Alex Adedapo
- Department of Veterinary Pharmacology and Toxicology, Faculty of Veterinary Medicine, University of Ibadan, Ibadan, Nigeria
| | - Benjamin Obukowho Emikpe
- Department of Veterinary Pathology, Faculty of Veterinary Medicine, University of Ibadan, Ibadan, Nigeria
| | | | - Sanah Malomile Nkadimeng
- Phytomedicine Programme, Department of Paraclinical Science, Faculty of Veterinary Science, University of Pretoria, Old Soutpan Road, Onderstepoort, Pretoria, 0110, South Africa
| | - Lyndy Joy McGaw
- Phytomedicine Programme, Department of Paraclinical Science, Faculty of Veterinary Science, University of Pretoria, Old Soutpan Road, Onderstepoort, Pretoria, 0110, South Africa
| | - Prudence Ngalula Kayoka-Kabongo
- Department of Agriculture and Animal Health, College of Agriculture and Environmental Sciences, University of South Africa, Florida, South Africa
| | - Oluwafemi Omoniyi Oguntibeju
- Phytomedicine and Phytochemistry Group, Oxidative Stress Research Centre, Department of Biomedical Sciences, Faculty of Health and Wellness Sciences, Cape Peninsula University of Technology, Bellville, Cape Town, 7535, South Africa
| | - Momoh Audu Yakubu
- Department of Environmental & Interdisciplinary Sciences, College of Science, Engineering & Technology, Vascular Biology Unit, Center for Cardiovascular Diseases, Texas Southern University, Houston, TX, USA
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Tomasova L, Grman M, Misak A, Kurakova L, Ondriasova E, Ondrias K. Cardiovascular "Patterns" of H 2S and SSNO --Mix Evaluated from 35 Rat Hemodynamic Parameters. Biomolecules 2021; 11:biom11020293. [PMID: 33669309 PMCID: PMC7920056 DOI: 10.3390/biom11020293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 02/02/2021] [Accepted: 02/10/2021] [Indexed: 11/18/2022] Open
Abstract
This work is based on the hypothesis that it is possible to characterize the cardiovascular system just from the detailed shape of the arterial pulse waveform (APW). Since H2S, NO donor S-nitrosoglutathione (GSNO) and their H2S/GSNO products (SSNO−-mix) have numerous biological actions, we aimed to compare their effects on APW and to find characteristic “patterns” of their actions. The right jugular vein of anesthetized rats was cannulated for i.v. administration of the compounds. The left carotid artery was cannulated to detect APW. From APW, 35 hemodynamic parameters (HPs) were evaluated. H2S transiently influenced all 35 HPs and from their cross-relationships to systolic blood pressure “patterns” and direct/indirect signaling pathways of the H2S effect were proposed. The observed “patterns” were mostly different from the published ones for GSNO. Effect of SSNO−-mix (≤32 nmol kg−1) on blood pressure in the presence or absence of a nitric oxide synthase inhibitor (L-NAME) was minor in comparison to GSNO, suggesting that the formation of SSNO−-mix in blood diminished the hemodynamic effect of NO. The observed time-dependent changes of 35 HPs, their cross-relationships and non-hysteresis/hysteresis profiles may serve as “patterns” for the conditions of a transient decrease/increase of blood pressure caused by H2S.
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Affiliation(s)
- Lenka Tomasova
- Biomedical Research Center, Institute of Clinical and Translational Research, Slovak Academy of Sciences, 811 04 Bratislava, Slovakia; (L.T.); (M.G.); (A.M.)
| | - Marian Grman
- Biomedical Research Center, Institute of Clinical and Translational Research, Slovak Academy of Sciences, 811 04 Bratislava, Slovakia; (L.T.); (M.G.); (A.M.)
| | - Anton Misak
- Biomedical Research Center, Institute of Clinical and Translational Research, Slovak Academy of Sciences, 811 04 Bratislava, Slovakia; (L.T.); (M.G.); (A.M.)
| | - Lucia Kurakova
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Comenius University, 814 99 Bratislava, Slovakia; (L.K.); (E.O.)
| | - Elena Ondriasova
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Comenius University, 814 99 Bratislava, Slovakia; (L.K.); (E.O.)
| | - Karol Ondrias
- Biomedical Research Center, Institute of Clinical and Translational Research, Slovak Academy of Sciences, 811 04 Bratislava, Slovakia; (L.T.); (M.G.); (A.M.)
- Correspondence: ; Tel.: +421-908577943
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Gbadamosi IT, Opatola DG, Oyagbemi A, Ajibade TO, Bolaji-Alabi FB, Omobowale TO, Saba AB, Adedapo AA, Yakubu MA, Oguntibeju OO. Methanol extract of Caesalpinia benthamiana normalizes blood pressure and attenuates oxidative stress in uninephrectomized hypertensive rats. J Basic Clin Physiol Pharmacol 2020; 32:109-119. [PMID: 32920540 DOI: 10.1515/jbcpp-2020-0065] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Accepted: 06/11/2020] [Indexed: 06/11/2023]
Abstract
OBJECTIVES Hypertension is the number one risk factor and primary contributor of cardiovascular diseases. Caesalpinia benthamiana is a valuable medicinal plant with unvalidated anti-hypertensive activity. This study was carried out to explore the antihypertensive effect of C. benthamiana on uninephrectomized hypertensive rats. METHODS Fifty rats were grouped into five groups, each containing 10 animals: Group A-normal control (normotensive); B-uninephrectomized control; C-uninephrectomized treated with 50 mg/kg C. benthamiana extract; D-uninephrectomized treated with 100 mg/kg C. benthamiana; and E- uninephrectomized treated with 10 mg/kg of Lisinopril. RESULTS Significant increases were observed in systolic, diastolic and mean blood pressure of uninephrectomized control rats. Furthermore, markers of oxidative stress (malondialdehyde, hydrogen peroxide, protein carbonyl, myeloperoxidase and the advanced oxidative protein products) increased significantly while antioxidant status (reduced glutathione, glutathione peroxidase, glutathione S-transferase and superoxide dismutase), reduced significantly in uninephrectomized hypertensive rats. Histopathology revealed thrombosis and occlusion of coronary vessels in the heart, and congestion in the kidney. However, the observed high blood pressure parameters were remarkably normalized together with reduction in markers of oxidative stress and improvement in antioxidant defence system of uninephrectomized hypertensive rats treated with C. benthamiana extract similar to normotensive rats. CONCLUSIONS C. benthamiana extract exhibited antihypertensive action, strong antioxidant ability, attenuated oxidative stress-mediated hypertension and lessened the development of cardiac and renal damage associated with hypertension induced by uninephrectomy and high dietary intake of salt. Together, C. benthamiana extract might be useful in the management of hypertension due to volume overload in the cardiovascular system.
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Affiliation(s)
| | | | - Ademola Oyagbemi
- Department of Veterinary Physiology and Biochemistry, Faculty of Veterinary Medicine, University of Ibadan, Ibadan, Nigeria
| | - Temitayo Olabisi Ajibade
- Department of Veterinary Physiology and Biochemistry, Faculty of Veterinary Medicine, University of Ibadan, Ibadan, Nigeria
| | - Foluso Bolawaye Bolaji-Alabi
- Department of Veterinary Surgery and Radiology, Faculty of Veterinary Medicine, University of Ibadan, Ibadan, Nigeria
| | - Temidayo Olutayo Omobowale
- Department of Veterinary Medicine, Faculty of Veterinary Medicine, University of Ibadan, Ibadan, Nigeria
| | - Adebowale Benard Saba
- Department of Veterinary Pharmacology and Toxicology, Faculty of Veterinary Medicine, University of Ibadan, Ibadan, Nigeria
| | - Adeolu Alex Adedapo
- Department of Veterinary Pharmacology and Toxicology, Faculty of Veterinary Medicine, University of Ibadan, Ibadan, Nigeria
| | - Momoh Audu Yakubu
- Department of Environmental & Interdisciplinary Sciences, College of Science, Engineering & Technology, Vascular Biology Unit, Center for Cardiovascular Diseases, Texas Southern University, Houston, TX, USA
| | - Oluwafemi Omoniyi Oguntibeju
- Phytomedicine and Phytochemistry Group, Department of Biomedical Sciences, Faculty of Health and Wellness Sciences, Cape Peninsula University of Technology, 7535Bellville, South Africa
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Characterization of Rat Cardiovascular System by Anacrotic/Dicrotic Notches in the Condition of Increase/Decrease of NO Bioavailability. Int J Mol Sci 2020; 21:ijms21186685. [PMID: 32932738 PMCID: PMC7555952 DOI: 10.3390/ijms21186685] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 09/08/2020] [Accepted: 09/10/2020] [Indexed: 02/07/2023] Open
Abstract
We characterized modes of action of NO-donor S-nitrosoglutathione (GSNO) and NO-synthase inhibitor l-NAME derived from dicrotic (DiN) and anacrotic (AnN) notches of rat arterial pulse waveform (APW) in the condition of increased/decreased NO bioavailability. The cross-relationship patterns of DiN and AnN with 34 hemodynamic parameters (HPs) induced by GSNO and l-NAME are presented. After GSNO bolus administration, approximate non-hysteresis relationships were observed in the difference between DiN-AnN (mmHg) blood pressure (BP) and other 19 HPs, suggesting that these HPs, i.e., their signaling pathways, responding to NO concentration, are directly connected. Hysteresis relationships were observed between DiN-AnN (mmHg) and other 14 HPs, suggesting that signaling pathways of these HPs are indirectly connected. The hysteresis relationships were only observed between the time interval DiN-AnN (ms) and other 34 HPs, indicating no direct connection of signaling pathways. The cross-relationship patterns of DiN-AnN (mmHg), but not DiN-AnN (ms), induced by l-NAME were in accordance to the increased NO bioavailability induced by GSNO. In conclusion, we found the non-hysteresis/hysteresis cross-relationship "patterns" of DiN-AnN intervals to other HPs in the presence of GSNO that revealed their direct or indirect signaling pathways connections. This may contribute to our understanding of biological effects of natural substances that modulate NO production and/or NO signaling pathways.
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Patterns and Direct/Indirect Signaling Pathways in Cardiovascular System in the Condition of Transient Increase of NO. BIOMED RESEARCH INTERNATIONAL 2020; 2020:6578213. [PMID: 32596347 PMCID: PMC7275240 DOI: 10.1155/2020/6578213] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 04/01/2020] [Accepted: 05/04/2020] [Indexed: 11/23/2022]
Abstract
Aim To study “patterns” and connections of signaling pathways derived from the rat arterial pulse waveform (APW) under the condition of transient NO increase. Methods and Results The right jugular vein of anesthetized Wistar rats was cannulated for administration of NO donor S-nitrosoglutathione. The left carotid artery was cannulated to detect APW. From rat APW, 35 hemodynamic parameters (HPs) and several their crossrelationships were evaluated. We introduced a new methodology to study “patterns” and connections of different signaling pathways, which are suggested from hysteresis and nonhysteresis crossrelationships of 35 rat HPs. Here, we show parallel time-dependent patterns of 35 HPs and some of their crossrelationships under the condition of transient increase of NO bioavailability by administration of S-nitrosoglutathione. Approximate nonhysteresis relationships were observed between systolic blood pressure and at least 11 HPs suggesting that these HPs, i.e., their signaling pathways, responding to NO concentration, are directly connected. Hysteresis relationships were observed between systolic blood pressure and at least 14 HPs suggesting that the signaling pathways of these HPs are indirectly connected. Totally, from the crossrelationships of 35 HPs, one can obtain 595 “patterns” and indication of direct or indirect connections between the signaling pathways. Conclusion We described the procedure leading virtually to 595 relationships, from which “patterns” for transient NO increase and direct or indirect connections of signaling pathways can be suggested. From a clinical perspective, this approach may be used in animal models and in humans to create a data bank of patterns of crossrelationships of HPs for different cardiovascular conditions. By comparison with unknown patterns of studied APW with the data bank patterns, it would be possible to determine cardiovascular conditions of the studied subject from the recorded arterial blood pressure. Additionally, it can help to find molecular mechanism of particular (patho-) physiological conditions or drug action and may have predictive or diagnostic value.
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