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Can B, Kar F, Kar E, Özkoç M, Şentürk H, Dönmez DB, Kanbak G, Alataş İÖ. Conivaptan and Boric Acid Treatments in Acute Kidney Injury: Is This Combination Effective and Safe? Biol Trace Elem Res 2022; 200:3723-3737. [PMID: 34676519 DOI: 10.1007/s12011-021-02977-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 10/14/2021] [Indexed: 12/11/2022]
Abstract
Acute kidney injury is still a worldwide clinic problem that affects kidney function and associated with high mortality risk. Unfortunately, approximately 1.7 million people are thought to die from acute kidney injury each year. Boron element is defined as an "essential trace element" for plants and thought to have a widespread role in living organisms. Boric acid, which is one of the important forms of boron, has been extensively discussed for both medicinal and nonmedicinal purposes. However, there is a lack of data in the literature to examine the relationship between boric acid and antidiuretic hormone (ADH) antagonism in kidney injury. Thus, we aimed to investigate the effects of conivaptan as an ADH antagonist and boric acid as an antioxidant agent on the post-ischemic renal injury process. In this study, the unilateral ischemia-reperfusion (I/R) injury rat model with contralateral nephrectomy was performed and blood/kidney tissue samples were taken at 6th hours of reperfusion. The effects of 10 mg/mL/kg conivaptan and 50 mg/kg boric acid were examined with the help of some biochemical and histological analyses. We observed that conivaptan generally alleviated the destructive effects of I/R and has therapeutic effects. Also of note is that conivaptan and boric acid combination tended to show negative effects on kidney function, considering the highest BUN (78.46 ± 3.88 mg/dL) and creatinine levels (1.561 ± 0.1018 mg/dL), suggesting possibly drug-drug interaction. Although it has reported that conivaptan can interact with other active substances, no experimental/clinical data on the possible interaction with boric acid have reported so far.
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Affiliation(s)
- Betül Can
- Department of Medical Biochemistry, Faculty of Medicine, Eskisehir Osmangazi University, Eskisehir, Turkey.
| | - Fatih Kar
- Department of Basic Science, Faculty of Engineering and Natural Sciences, Kutahya Health Sciences University, Kutahya, Turkey
| | - Ezgi Kar
- Department of Medical Biochemistry, Faculty of Medicine, Eskisehir Osmangazi University, Eskisehir, Turkey
| | - Mete Özkoç
- Department of Medical Biochemistry, Faculty of Medicine, Eskisehir Osmangazi University, Eskisehir, Turkey
| | - Hakan Şentürk
- Department of Biology, Faculty of Science and Letters, Eskisehir Osmangazi University, Eskisehir, Turkey
| | - Dilek Burukoğlu Dönmez
- Department of Histology and Embryology, Faculty of Medicine, Eskisehir Osmangazi University, Eskisehir, Turkey
| | - Güngör Kanbak
- Department of Medical Biochemistry, Faculty of Medicine, Eskisehir Osmangazi University, Eskisehir, Turkey
| | - İbrahim Özkan Alataş
- Department of Medical Biochemistry, Faculty of Medicine, Eskisehir Osmangazi University, Eskisehir, Turkey
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Lerink LJS, de Kok MJC, Mulvey JF, Le Dévédec SE, Markovski AA, Wüst RCI, Alwayn IPJ, Ploeg RJ, Schaapherder AFM, Bakker JA, Lindeman JHN. Preclinical models versus clinical renal ischemia reperfusion injury: A systematic review based on metabolic signatures. Am J Transplant 2022; 22:344-370. [PMID: 34657378 PMCID: PMC9298342 DOI: 10.1111/ajt.16868] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 10/12/2021] [Accepted: 10/12/2021] [Indexed: 01/25/2023]
Abstract
Despite decennia of research and numerous successful interventions in the preclinical setting, renal ischemia reperfusion (IR) injury remains a major problem in clinical practice, pointing toward a translational gap. Recently, two clinical studies on renal IR injury (manifested either as acute kidney injury or as delayed graft function) identified metabolic derailment as a key driver of renal IR injury. It was reasoned that these unambiguous metabolic findings enable direct alignment of clinical with preclinical data, thereby providing the opportunity to elaborate potential translational hurdles between preclinical research and the clinical context. A systematic review of studies that reported metabolic data in the context of renal IR was performed according to the PRISMA guidelines. The search (December 2020) identified 35 heterogeneous preclinical studies. The applied methodologies were compared, and metabolic outcomes were semi-quantified and aligned with the clinical data. This review identifies profound methodological challenges, such as the definition of IR injury, the follow-up time, and sampling techniques, as well as shortcomings in the reported metabolic information. In light of these findings, recommendations are provided in order to improve the translatability of preclinical models of renal IR injury.
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Affiliation(s)
- Lente J. S. Lerink
- Department of SurgeryLeiden University Medical CenterLeidenThe Netherlands,Transplant CenterLeiden University Medical CenterLeidenThe Netherlands
| | - Michèle J. C. de Kok
- Department of SurgeryLeiden University Medical CenterLeidenThe Netherlands,Transplant CenterLeiden University Medical CenterLeidenThe Netherlands
| | - John F. Mulvey
- Nuffield Department of Surgical SciencesUniversity of OxfordOxfordUK
| | - Sylvia E. Le Dévédec
- Department of Division of ToxicologyLeiden Academic Center for Drug ResearchLeiden UniversityLeidenThe Netherlands
| | | | - Rob C. I. Wüst
- Laboratory for MyologyFaculty of Behavioral and Movement SciencesAmsterdam Movement SciencesVrije Universiteit AmsterdamAmsterdamThe Netherlands
| | - Ian P. J. Alwayn
- Department of SurgeryLeiden University Medical CenterLeidenThe Netherlands,Transplant CenterLeiden University Medical CenterLeidenThe Netherlands
| | - Rutger J. Ploeg
- Department of SurgeryLeiden University Medical CenterLeidenThe Netherlands,Nuffield Department of Surgical SciencesUniversity of OxfordOxfordUK
| | - Alexander F. M. Schaapherder
- Department of SurgeryLeiden University Medical CenterLeidenThe Netherlands,Transplant CenterLeiden University Medical CenterLeidenThe Netherlands
| | - Jaap A. Bakker
- Department of Clinical ChemistryLeiden University Medical CenterLeidenThe Netherlands,Present address:
Laboratory Genetic Metabolic DiseasesAmsterdam Medical CenterAmsterdamThe Netherlands
| | - Jan H. N. Lindeman
- Department of SurgeryLeiden University Medical CenterLeidenThe Netherlands,Transplant CenterLeiden University Medical CenterLeidenThe Netherlands
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Korei C, Szabo B, Varga A, Barath B, Deak A, Vanyolos E, Hargitai Z, Kovacs I, Nemeth N, Peto K. Hematological, Micro-Rheological, and Metabolic Changes Modulated by Local Ischemic Pre- and Post-Conditioning in Rat Limb Ischemia-Reperfusion. Metabolites 2021; 11:metabo11110776. [PMID: 34822434 PMCID: PMC8625580 DOI: 10.3390/metabo11110776] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 11/10/2021] [Accepted: 11/11/2021] [Indexed: 12/19/2022] Open
Abstract
In trauma and orthopedic surgery, limb ischemia-reperfusion (I/R) remains a great challenge. The effect of preventive protocols, including surgical conditioning approaches, is still controversial. We aimed to examine the effects of local ischemic pre-conditioning (PreC) and post-conditioning (PostC) on limb I/R. Anesthetized rats were randomized into sham-operated (control), I/R (120-min limb ischemia with tourniquet), PreC, or PostC groups (3 × 10-min tourniquet ischemia, 10-min reperfusion intervals). Blood samples were taken before and just after the ischemia, and on the first postoperative week for testing hematological, micro-rheological (erythrocyte deformability and aggregation), and metabolic parameters. Histological samples were also taken. Erythrocyte count, hemoglobin, and hematocrit values decreased, while after a temporary decrease, platelet count increased in I/R groups. Erythrocyte deformability impairment and aggregation enhancement were seen after ischemia, more obviously in the PreC group, and less in PostC. Blood pH decreased in all I/R groups. The elevation of creatinine and lactate concentration was the largest in PostC group. Histology did not reveal important differences. In conclusion, limb I/R caused micro-rheological impairment with hematological and metabolic changes. Ischemic pre- and post-conditioning had additive changes in various manners. Post-conditioning showed better micro-rheological effects. However, by these parameters it cannot be decided which protocol is better.
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Affiliation(s)
- Csaba Korei
- Department of Traumatology and Hand Surgery, Faculty of Medicine, University of Debrecen, Bartok Bela ut 2-26, H-4031 Debrecen, Hungary;
- Department of Operative Techniques and Surgical Research, Faculty of Medicine, University of Debrecen, Moricz Zsigmond u. 22, H-4002 Debrecen, Hungary; (B.S.); (A.V.); (B.B.); (A.D.); (E.V.); (K.P.)
- Doctoral School of Clinical Medicine, University of Debrecen, Nagyerdei krt. 98, H-4032 Debrecen, Hungary
| | - Balazs Szabo
- Department of Operative Techniques and Surgical Research, Faculty of Medicine, University of Debrecen, Moricz Zsigmond u. 22, H-4002 Debrecen, Hungary; (B.S.); (A.V.); (B.B.); (A.D.); (E.V.); (K.P.)
- Doctoral School of Clinical Medicine, University of Debrecen, Nagyerdei krt. 98, H-4032 Debrecen, Hungary
| | - Adam Varga
- Department of Operative Techniques and Surgical Research, Faculty of Medicine, University of Debrecen, Moricz Zsigmond u. 22, H-4002 Debrecen, Hungary; (B.S.); (A.V.); (B.B.); (A.D.); (E.V.); (K.P.)
- Doctoral School of Clinical Medicine, University of Debrecen, Nagyerdei krt. 98, H-4032 Debrecen, Hungary
| | - Barbara Barath
- Department of Operative Techniques and Surgical Research, Faculty of Medicine, University of Debrecen, Moricz Zsigmond u. 22, H-4002 Debrecen, Hungary; (B.S.); (A.V.); (B.B.); (A.D.); (E.V.); (K.P.)
- Doctoral School of Clinical Medicine, University of Debrecen, Nagyerdei krt. 98, H-4032 Debrecen, Hungary
| | - Adam Deak
- Department of Operative Techniques and Surgical Research, Faculty of Medicine, University of Debrecen, Moricz Zsigmond u. 22, H-4002 Debrecen, Hungary; (B.S.); (A.V.); (B.B.); (A.D.); (E.V.); (K.P.)
| | - Erzsebet Vanyolos
- Department of Operative Techniques and Surgical Research, Faculty of Medicine, University of Debrecen, Moricz Zsigmond u. 22, H-4002 Debrecen, Hungary; (B.S.); (A.V.); (B.B.); (A.D.); (E.V.); (K.P.)
| | - Zoltan Hargitai
- Clinical Center, Pathology Unit, Kenezy Campus, University of Debrecen, Bartok Bela ut 2-26, H-4031 Debrecen, Hungary; (Z.H.); (I.K.)
| | - Ilona Kovacs
- Clinical Center, Pathology Unit, Kenezy Campus, University of Debrecen, Bartok Bela ut 2-26, H-4031 Debrecen, Hungary; (Z.H.); (I.K.)
| | - Norbert Nemeth
- Department of Operative Techniques and Surgical Research, Faculty of Medicine, University of Debrecen, Moricz Zsigmond u. 22, H-4002 Debrecen, Hungary; (B.S.); (A.V.); (B.B.); (A.D.); (E.V.); (K.P.)
- Correspondence: ; Tel./Fax: +36-52-416-915
| | - Katalin Peto
- Department of Operative Techniques and Surgical Research, Faculty of Medicine, University of Debrecen, Moricz Zsigmond u. 22, H-4002 Debrecen, Hungary; (B.S.); (A.V.); (B.B.); (A.D.); (E.V.); (K.P.)
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Varga G, Ghanem S, Szabo B, Nagy K, Pal N, Tanczos B, Somogyi V, Barath B, Deak A, Matolay O, Bidiga L, Peto K, Nemeth N. Which remote ischemic preconditioning protocol is favorable in renal ischemia-reperfusion injury in the rat? Clin Hemorheol Microcirc 2021; 76:439-451. [PMID: 32804120 DOI: 10.3233/ch-200916] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
BACKGROUND The optimal timing of remote ischemic preconditioning (RIPC) in renal ischemia-reperfusion (I/R) injury is still unclear. We aimed to compare early- and delayed-effect RIPC with hematological, microcirculatory and histomorphological parameters. METHODS In anesthetized male CrI:WI Control rats (n = 7) laparotomy and femoral artery cannulation were performed. In I/R group (n = 7) additionally a 45-minute unilateral renal ischemia with 120-minute reperfusion was induced. The right hind-limb was strangulated for 3×10 minutes (10-minute intermittent reperfusion) 1 hour (RIPC-1 group, n = 7) or 24 hour (RIPC-24 group, n = 6) prior to the I/R. Hemodynamic, hematological parameters and organs' surface microcirculation were measured. RESULTS Control and I/R group had the highest heart rate (p < 0.05 vs base), while the lowest mean arterial pressure (p < 0.05 vs RIPC-1) were found in the RIPC-24 group. The highest microcirculation values were measured in the I/R group (liver: p < 0.05 vs Control). The leukocyte count increased in I/R group (base: p < 0.05 vs Control), also this group's histological score was the highest (p < 0.05 vs Control). The RIPC-24 group had a significantly lower score than the RIPC-1 (p = 0.0025 vs RIPC-1). CONCLUSION Renal I/R caused significant functional and morphological, also in the RIPC groups. According to the histological examination the delayed-effect RIPC method was more effective.
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Affiliation(s)
- Gabor Varga
- Department of Operative Techniques and Surgical Research, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.,Doctoral School of Clinical Medicine, University of Debrecen, Debrecen, Hungary
| | - Souleiman Ghanem
- Department of Operative Techniques and Surgical Research, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.,Doctoral School of Clinical Medicine, University of Debrecen, Debrecen, Hungary
| | - Balazs Szabo
- Department of Operative Techniques and Surgical Research, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.,Doctoral School of Clinical Medicine, University of Debrecen, Debrecen, Hungary
| | - Kitti Nagy
- Department of Operative Techniques and Surgical Research, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Noemi Pal
- Department of Operative Techniques and Surgical Research, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Bence Tanczos
- Department of Operative Techniques and Surgical Research, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.,Doctoral School of Clinical Medicine, University of Debrecen, Debrecen, Hungary
| | - Viktoria Somogyi
- Department of Operative Techniques and Surgical Research, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Barbara Barath
- Department of Operative Techniques and Surgical Research, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.,Doctoral School of Clinical Medicine, University of Debrecen, Debrecen, Hungary
| | - Adam Deak
- Department of Operative Techniques and Surgical Research, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Orsolya Matolay
- Doctoral School of Clinical Medicine, University of Debrecen, Debrecen, Hungary.,Department of Pathology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Laszlo Bidiga
- Department of Pathology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Katalin Peto
- Department of Operative Techniques and Surgical Research, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Norbert Nemeth
- Department of Operative Techniques and Surgical Research, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
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5
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Sun X, Kuang B, Dai Y, Xiong C, Li M, Luo Z. Quantitative evaluation of dexamethasone treatment effects in renal ischemia-reperfusion injury using contrast enhanced ultrasonography in rats. Clin Hemorheol Microcirc 2020; 76:99-110. [PMID: 32651308 DOI: 10.3233/ch-200842] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
BACKGROUND Renal ischemia-reperfusion (I/R) injury often occurs in various clinical events, and its incidence and mortality have been increasing. OBJECTIVE To investigate the value of contrast enhanced ultrasonography (CEUS) in the monitoring of dexamethasone in the improvement of renal I/R injury in rats. METHODS Eighteen healthy male Sprague-Dawley rats were randomly divided into sham-operated, I/R, and I/R surgery plus dexamethasone treatment (Dexa) groups. In the I/R group 45-minute renal ischemia with 24 h reperfusion period was monitored. Time-intensity curve (TIC)-derived parameters, which included peak value, time to peak (TP), area under the curve (AUC), and mean transit time (MTT) were compared to the blood creatinine, urea, Caspase-1, and NLRP3 levels. RESULTS The I/R group showed an increased peak value, prolonged TP and MTT, and greater AUC (P < 0.05). The Dexa group showed shorter TP and MTT, and smaller AUC (P < 0.05). Results show that the associations between (i) TP, AUC, and MTT and (ii) creatinine, urea, Caspase-1, and NLRP3 levels were significant (P < 0.05). CONCLUSION Dexamethasone can alleviate renal I/R injury in rats, which may be related to the inhibition of NLRP3 and caspase-1. CEUS can quantitatively measure this change, in which the changes in TP, AUC and MMT values have considerable reference values.
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Affiliation(s)
- Xiaoying Sun
- Department of Ultrasonography, the People's Hospital of Deyang City, Deyang, China
| | - Bin Kuang
- Department of Ultrasonography, the Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Yan Dai
- Department of Pharmacy, the Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Chao Xiong
- Department of Anesthesiology, the People's Hospital of Deyang City, Deyang, China
| | - Mingxing Li
- Department of Ultrasonography, the Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Zhijian Luo
- Department of Ultrasonography, the Affiliated Hospital of Southwest Medical University, Luzhou, China
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Ulker P, Ozkan O, Amoroso M, Aslan M, Bassorgun I, Ubur MC, Ünal K, Ozcan F, Ozkan O. Does ischemic preconditioning increase flap survival by ADORA2B receptor activation? Clin Hemorheol Microcirc 2020; 75:151-162. [PMID: 31985456 DOI: 10.3233/ch-190730] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Ischemic preconditioning (IPC) is defined as raising tolerance to subsequent ischemic stress by exposing tissues to sub-lethal ischemia. Although many candidates have been suggested, recent studies have clearly demonstrated that adenosine-mediated ADORA2B receptor (ADORA2BR) activation is the main mechanism involved in IPC. While the tissue-protective role of this mechanism has been demonstrated in different ischemia/reperfusion (I/R) models, its role in flap surgery-derived I/R damage has not to date been investigated. OBJECTIVE To investigate the role of adenosine and ADORA2BR activation in IPC-mediated tissue protection in an epigastric flap model. METHODS Animals were divided into five main groups, all of which were then divided into two subgroups depending on whether or not they were exposed to IPC before the I/R procedure, which consisted of 6 hours of ischemia and 6 days of reperfusion. No drugs were administered in Group 1 (the control group). Animals in Group 2 were pretreated with CD73-inhibitor before IPC application or the ischemic period. Animals in Group 3 were pretreated with adenosine. Animals in Group 4 were pretreated with an ADORA2BR antagonist, and those in Group 5 with an ADORA2BR agonist. After 6 days of reperfusion, tissue survival was evaluated via histological and macroscopic analysis. RESULTS IPC application significantly enhanced CD73 expressions and adenosine concentrations (p < 0.01). Flap survivals were increased by IPC in Group 1 (p < 0.05). However, CD73 inhibition blocked this increase (Group 2). In Group 3, adenosine improved flap survival even in the absence of IPC (p < 0.01). While an ADORA2BR antagonist attenuated the tissue-protective effect of IPC (p < 0.01), the ADORA2BR agonist improved flap survival by mimicking IPC in groups 4 and 5. CONCLUSION These results provide pharmacological evidence for a contribution of CD73 enzyme-dependent adenosine generation and signaling through ADORA2BR to IPC-mediated tissue protection. They also suggest for the first time that ADORA2BR agonists may be used as a potential preventive therapy against I/R injury in flap surgeries.
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Affiliation(s)
- Pinar Ulker
- Department of Physiology, Akdeniz University, Antalya, Turkey
| | - Ozlenen Ozkan
- Department of Plastic and Reconstructive Surgery, Akdeniz University, Antalya, Turkey
| | - Matteo Amoroso
- Department of Plastic Surgery, University of Gothenburg, The Sahlgrenska Academy, Institute of Clinical Sciences, Sahlgrenska University Hospital, Göteborg, Sweden
| | - Mutay Aslan
- Department of Biochemistry, Akdeniz University, Antalya, Turkey
| | | | - Mehmet Can Ubur
- Department of Plastic and Reconstructive Surgery, Akdeniz University, Antalya, Turkey
| | - Kerim Ünal
- Department of Plastic and Reconstructive Surgery, Akdeniz University, Antalya, Turkey
| | - Filiz Ozcan
- Department of Biochemistry, Akdeniz University, Antalya, Turkey
| | - Omer Ozkan
- Department of Plastic and Reconstructive Surgery, Akdeniz University, Antalya, Turkey
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7
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Zhu J, Kang J, Li X, Wang M, Shang M, Luo Y, Xiong M, Hu K. Chronic intermittent hypoxia vs chronic continuous hypoxia: Effects on vascular endothelial function and myocardial contractility. Clin Hemorheol Microcirc 2020; 74:417-427. [PMID: 31683472 DOI: 10.3233/ch-190706] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
BACKGROUND AND AIM Both chronic intermittent hypoxia (CIH) and chronic continuous hypoxia (CCH) are risk factors for cardiovascular disease, which are associated with cardiac systolic function and associated with dysfunction of endothelia and coagulation-fibrinolysis system in the vasculature. However, the different effects of these two hypoxic models are not fully understood. In our study, we systemically compared the effects of CIH and CCH on cardiac function and related factor levels in serum using rat model. METHODS Forty-five male Sprague-Dawley rats were randomly divided into the normoxia control (NC), CIH and CCH groups. The rat CIH and CCH models were established, then the blood and tissue samples were collected to analyze the function of endothelium and the coagulation-fibrinolysis system. Also, the ultrasound cardiogram was performed to directly assess myocardial contractility. RESULTS Both CIH and CCH significantly decreased the NO, eNOS, P-eNOS and AT-III levels in the rat serum but significantly increased the levels of ET-1, vWF, COX-2, NF-κB, FIB, FVIII and PAI-1 in the rat serum (P < 0.05). The expression of ET-1, VWF and ICAM-1 in CIH group were higher than CCH group (P < 0.05), however, the expression of CD62p was increased in CCH group but not in CIH group. The expression of t-PA in CIH group were lower than CCH group (P < 0.05), but there were no significant differences in CCH group and NC group (P > 0.05). Using transmission electron microscope, we found that the mitochondrial ultrastructure of thoracic aorta endothelial cells in CIH and CCH group were damaged. Moreover, the myocardial contractility in CIH and CCH group were significantly decreased compared with NC group. CONCLUSION Our results suggested that CIH and CCH could cause endothelial dysfunction, dysfunction of the coagulation-fibrinolysis system and decreasing of myocardial contractility. Compared with CCH, CIH has greater effect on vasoconstriction and adhesion of vascular endothelial cells, and stronger procoagulant effect.
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Affiliation(s)
- Jing Zhu
- Department of Respiratory and Critical Care Medicine, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Jing Kang
- Department of Respiratory and Critical Care Medicine, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Xiaochen Li
- Department of Respiratory and Critical Care Medicine, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Mengmei Wang
- Department of Respiratory and Critical Care Medicine, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Min Shang
- Department of Respiratory and Critical Care Medicine, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Yuchuan Luo
- Department of Respiratory and Critical Care Medicine, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Mengqing Xiong
- Department of Respiratory and Critical Care Medicine, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Ke Hu
- Department of Respiratory and Critical Care Medicine, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
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8
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Lamby P, Krüger-Genge A, Franke RP, Mrowietz C, Falter J, Graf S, Schellenberg EL, Jung F, Prantl L. Effect of iodinated contrast media on the oxygen tension in the renal cortico-medullary region of pigs. Clin Hemorheol Microcirc 2020; 73:261-270. [PMID: 31322554 DOI: 10.3233/ch-199009] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Repeated injections of iodinated contrast media (CM) can lead to a deterioration of the renal blood flow, can redistribute blood from the renal cortex to other parts of the kidney and can cause small decreases of the blood flow in cortical capillaries, a significant reduction in blood flow in peritubular capillaries and a significant reduction in blood flow in the vasa recta. Therefore, a study in pigs was designed, to show whether the repeated injection of CM boli, alone, can cause a reduction of oxygenation in the cortico-medullar renal tissue - the region with the highest oxygen demand in the kidney - of pigs.While the mean pO2-value had only decreased by 0.3 mmHg from 29.9±4.3 mmHg to 29.6±4.3 mmHg (p = 0.8799) after the tenth Iodixanol bolus, it decreased by 5.9 mmHg from 34.0±4.3 mmHg to 28.1±4.3 mmHg after the tenth Iopromide bolus (p = 0.044). This revealed a remarkable difference in the influence of these CM on the oxygen partial pressure in the kidney.Repeated applications of CM had a significant influence on the renal oxygen partial pressure. In line with earlier studies showing a redistribution of blood from the cortex to other renal areas, this study revealed that Iodixanol - in contrast to Iopromide - induced no changes in the pO2 in the cortico-medullar region which confirms that Iodixanol did not hinder the flow of blood through the renal micro-vessels. These results are in favor of a hypothesis from Brezis that a microcirculatory disorder might be the basis for the development of CI-AKI.
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Affiliation(s)
- P Lamby
- Department of Plastic and Hand Surgery, University Hospital Regensburg, Germany
| | - A Krüger-Genge
- Department of Anaesthesia, Pain Management and Perioperative Medicine, Faculty of Medicine, Dalhousie University, Halifax, Canada
| | - R P Franke
- Central Institute for Biomedical Engineering, Department of Biomaterials, University of Ulm, Ulm, Germany
| | - C Mrowietz
- Institute for Animal Hygiene, Animal Welfare and Farm Animal Behaviour and Virtual Center for Replacement - Complementary Methods to Animal Testing, University of Veterinary Medicine Hannover, Hannover, Germany
| | - J Falter
- Department of Plastic and Hand Surgery, University Hospital Regensburg, Germany
| | - S Graf
- Department of Plastic and Hand Surgery, University Hospital Regensburg, Germany
| | - E L Schellenberg
- Department of Anesthesiology, University Hospital Regensburg, Germany
| | - F Jung
- Institute of Biomaterial Science and Berlin-Brandenburg Centre for Regenerative Therapies, Helmholtz-Zentrum Geesthacht, Teltow, Germany
| | - L Prantl
- Department of Plastic and Hand Surgery, University Hospital Regensburg, Germany
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