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Jia B, Ye J, Gan L, Li R, Zhang M, Sun D, Weng L, Xiong Y, Xu J, Zhang P, Huang W, Zheng M, Wang T. Mitochondrial antioxidant SkQ1 decreases inflammation following hemorrhagic shock by protecting myocardial mitochondria. Front Physiol 2022; 13:1047909. [PMID: 36467681 PMCID: PMC9709459 DOI: 10.3389/fphys.2022.1047909] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 11/02/2022] [Indexed: 08/04/2023] Open
Abstract
Background: Hemorrhagic shock (HS) is a type of hypovolemic shock characterized by hemodynamic instability, tissue hypoperfusion and cellular hypoxia. In pathophysiology, the gradual accumulation of reactive oxygen species (ROS) damages the mitochondria, leading to irreversible cell damage and the release of endogenous damage-associated molecular patterns (DAMPs) including mitochondrial DAMPs (MTDs), eventually triggering the inflammatory response. The novel mitochondria-targeted antioxidant SkQ1 (Visomitin) effectively eliminate excessive intracellular ROS and exhibits anti-inflammatory effects; however, the specific role of SkQ1 in HS has not yet been explicated. Methods and results: A 40% fixed-blood-loss HS rat model was established in this study. Transmission electron microscopy showed that after HS, the myocardial mitochondrial ultrastructure was damaged and the mtDNA release in circulation was increased and the differentially expressed genes were significantly enriched in mitochondrial and ROS-related pathways. Mitochondria-targeted antioxidant SkQ1 attenuated the increased ROS induced by HS in myocardial tissues and by oxygen-glucose deprivation (OGD) in cardiomyocytes. Ultrastructurally, SkQ1 protected the myocardial mitochondrial structure and reduced the release of the peripheral blood mtDNA after HS. RNA-seq transcriptome analysis showed that 56.5% of the inflammation-related genes, which altered after HS, could be significantly reversed after SkQ1 treatment. Moreover, ELISA indicated that SkQ1 significantly reversed the HS-induced increases in the TNF-α, IL-6, and MCP-1 protein levels in rat peripheral blood. Conclusion: HS causes damage to the rat myocardial mitochondrial structure, increases mtDNA release and ROS contents, activates the mitochondrial and ROS-related pathways, and induces systemic inflammatory response. The mitochondrial antioxidant SkQ1 can improve rat myocardial mitochondria ultrastructure, reduce mtDNA and ROS contents, and decrease inflammation by protecting myocardial mitochondria, thereby playing a novel protective role in HS.
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Affiliation(s)
- Bo Jia
- Trauma Medicine Center, Peking University People’s Hospital, Key Laboratory of Trauma and Neural Regeneration (Peking University), Ministry of Education, National Center for Trauma Medicine of China, Beijing, China
| | - Jingjing Ye
- Trauma Medicine Center, Peking University People’s Hospital, Key Laboratory of Trauma and Neural Regeneration (Peking University), Ministry of Education, National Center for Trauma Medicine of China, Beijing, China
| | - Lebin Gan
- Trauma Medicine Center, Peking University People’s Hospital, Key Laboratory of Trauma and Neural Regeneration (Peking University), Ministry of Education, National Center for Trauma Medicine of China, Beijing, China
| | - Rui Li
- Trauma Medicine Center, Peking University People’s Hospital, Key Laboratory of Trauma and Neural Regeneration (Peking University), Ministry of Education, National Center for Trauma Medicine of China, Beijing, China
| | - Mengwei Zhang
- Trauma Medicine Center, Peking University People’s Hospital, Key Laboratory of Trauma and Neural Regeneration (Peking University), Ministry of Education, National Center for Trauma Medicine of China, Beijing, China
| | - Diya Sun
- Trauma Medicine Center, Peking University People’s Hospital, Key Laboratory of Trauma and Neural Regeneration (Peking University), Ministry of Education, National Center for Trauma Medicine of China, Beijing, China
| | - Lin Weng
- School of Basic Medical Sciences, Department of Physiology and Pathophysiology, Peking University Health Science Center, Beijing, China
| | - Yufei Xiong
- School of Basic Medical Sciences, Department of Physiology and Pathophysiology, Peking University Health Science Center, Beijing, China
| | - Jun Xu
- Department of Gastroenterology, Clinical Center of Immune-Mediated Digestive Diseases, Peking University People’s Hospital, Beijing, China
| | - Peng Zhang
- Trauma Medicine Center, Peking University People’s Hospital, Key Laboratory of Trauma and Neural Regeneration (Peking University), Ministry of Education, National Center for Trauma Medicine of China, Beijing, China
| | - Wei Huang
- Trauma Medicine Center, Peking University People’s Hospital, Key Laboratory of Trauma and Neural Regeneration (Peking University), Ministry of Education, National Center for Trauma Medicine of China, Beijing, China
| | - Ming Zheng
- School of Basic Medical Sciences, Department of Physiology and Pathophysiology, Peking University Health Science Center, Beijing, China
| | - Tianbing Wang
- Trauma Medicine Center, Peking University People’s Hospital, Key Laboratory of Trauma and Neural Regeneration (Peking University), Ministry of Education, National Center for Trauma Medicine of China, Beijing, China
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Papaefstathiou E, Papaioannou M, Papaefstathiou E, Apostolopoulou A, Apostolidis A. Do we have enough evidence to propose a urinary biomarker of bladder ischemia? A systematic review and meta-analysis. Low Urin Tract Symptoms 2022; 14:308-317. [PMID: 35438247 DOI: 10.1111/luts.12443] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Revised: 03/19/2022] [Accepted: 03/28/2022] [Indexed: 01/07/2023]
Abstract
OBJECTIVE Urinary bladder ischemia has been implicated in the pathogenesis of lower urinary tract symptoms (LUTS). However, research regarding urinary molecular markers for diagnosis and prognosis of pelvic ischemia is still premature, hindering further implementation in clinical practice. The aim of this study is to systematically appraise biomarkers associated with bladder ischemia detected in urine. METHODS We performed a systematic review of PubMed/Medline, Embase, Web of Science, and the Cochrane Library in October 2021 according to the Preferred Reporting Items for Systematic Review and Meta-Analysis (PRISMA) statement. A subsequent reference search of retrieved articles was also performed. The identified reports were reviewed according to Systematic Review Center for Laboratory Animal Experimentation's risk-of-bias tool for animal studies. RESULTS Eight publications were selected for this analysis. The included reports used 8-hydroxy-2'-deoxyguanosine (8-OHdG) (in eight studies) as urinary marker of bladder ischemia. The pooled mean difference for urinary 8-OHdG levels between study and control groups was 13.73 ng/mg creatinine (95% CI, 9.79-17.67; P < .001; I2 = 69%) for rat studies and 3.71 ng/mg creatinine (95% CI, 2.91-4.51; P < .001; I2 = 94%) for rabbit studies. The result remained statistically significant favoring the control group independent of the type of intervention used to achieve bladder ischemia. Regarding secondary outcomes, mean voided volume and micturition interval were significantly lower in the ischemia group. CONCLUSION The lack of human randomized controlled trials is a major limitation. 8-OHdG is a urinary biomarker to be investigated in future studies for diagnosis and prognosis of LUTS in patients with vascular injury or bladder outlet obstruction.
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Affiliation(s)
- Efstathios Papaefstathiou
- 2nd Department of Urology, Aristotle University of Thessaloniki, General Hospital 'Papageorgiou', Thessaloniki, Greece
| | - Maria Papaioannou
- Laboratory of Biological Chemistry, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Eirini Papaefstathiou
- General (Internal) Medicine Department, Dartford and Gravesham NHS Trust, Dartford, UK
| | - Aikaterini Apostolopoulou
- Laboratory of Hygiene, Social & Preventive Medicine and Medical Statistics, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Apostolos Apostolidis
- 2nd Department of Urology, Aristotle University of Thessaloniki, General Hospital 'Papageorgiou', Thessaloniki, Greece
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Oxidative Stress Biomarkers in Age-Related Lower Urinary Tract Disorders: A Systematic Review. Int Neurourol J 2022; 26:3-19. [PMID: 35368181 PMCID: PMC8984698 DOI: 10.5213/inj.2142188.094] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Accepted: 07/09/2021] [Indexed: 12/27/2022] Open
Abstract
PURPOSE To conduct a systematic review of preclinical and clinical peer-reviewed evidence linking alterations in oxidative stress biomarkers or outcome measures that were also prevalent in specific age-related lower urinary tract (LUT) disorders. METHODS PubMed, Scopus, CINAHL, and Embase were searched for peer-reviewed studies published between January 2000 and March 2021. Animal and human studies that reported on the impact of oxidative stress in age-related LUT disorders through structural or functional changes in the LUT and changes in biomarkers were included. The PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) protocol was followed. RESULTS Of 882 articles identified, 21 studies (13 animal; 8 human) met inclusion criteria. Across LUT disorders, common structural changes were increased bladder and prostate weights, ischemic damage, nerve damage and detrusor muscle hypertrophy; common functional changes included decreased bladder contraction, increased bladder sensation and excitability, decreased perfusion, and increased inflammation. The disorders were associated with increased levels of biomarkers of oxidative stress that provided evidence of either molecular damage, protective mechanisms against oxidative stress, neural changes, or inflammation. In all cases, the effect on biomarkers and enzymes was greater in aged groups compared to younger groups. CONCLUSION Increased oxidative stress, often associated with mitochondrial dysfunction, plays a significant role in the pathogenesis of age-related LUT disorders and may explain their increasing prevalence. This systematic review identifies potential markers of disease progression and treatment opportunities; further research is warranted to evaluate these markers and the mechanisms by which these changes may lead to age-related LUT disorders.
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Jeng PH, Huang TR, Wang CC, Chen WL. Clinical Relevance of Urine Flow Rate and Exposure to Polycyclic Aromatic Hydrocarbons. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18105372. [PMID: 34070005 PMCID: PMC8157826 DOI: 10.3390/ijerph18105372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Revised: 05/13/2021] [Accepted: 05/15/2021] [Indexed: 01/06/2023]
Abstract
Background: Polycyclic aromatic hydrocarbon (PAH) metabolites have received increasing attention because several of these organic substances are highly carcinogenic or mutagenic. Exposure to PAHs is associated with many harmful health effects; however, we are not aware of any study that has explored the exposure to PAHs and urinary conditions in the general population. The present work aimed to investigate the correlation among PAH and urine flow rate (UFR). Method: Cross-sectional data from the National Health and Nutrition Examination Survey (NHANES) 2009–2012 were used in our study. A total of 4172 participants and a total of nine PAH metabolites were examined. The UFR was measured as the amount of urine excreted in a period of time (mL/h). Several covariates were adjusted in linear regression models. Result: After adjusting for variables, the PAH metabolites in urine showed a significant correlation with UFR. Dose-dependent associations between PAH metabolites in the urine and UFR were also found. Higher quartiles of PAH metabolites in urine exhibited higher regression coefficients. Conclusion: Our study highlighted that PAH metabolites in urine had a strong association with decreased UFR in the US adult population. These findings support the possibility that PAH exposure is related to bladder dysfunction. Further prospective studies are warranted.
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Affiliation(s)
- Po-Hsuan Jeng
- Department of General Medicine, School of Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei 114, Taiwan; (P.-H.J.); (T.-R.H.)
- Department of Surgery, Division of Urology, Tri-Service General Hospital, Taipei 114, Taiwan
| | - Tien-Ru Huang
- Department of General Medicine, School of Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei 114, Taiwan; (P.-H.J.); (T.-R.H.)
- Department of Otolaryngology-Head and Neck Surgery, Tri-Service General Hospital, Taipei 114, Taiwan
| | - Chung-Ching Wang
- Department of Family and Community Medicine, Division of Family Medicine, School of Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei 114, Taiwan;
| | - Wei-Liang Chen
- Department of Family and Community Medicine, Division of Family Medicine, School of Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei 114, Taiwan;
- Department of Family and Community Medicine, Division of Geriatric Medicine, School of Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei 114, Taiwan
- Correspondence: ; Tel.: +886-2-87923311 (ext. 16567)
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Swavely NR, Cullingsworth ZE, Nandanan N, Speich JE, Klausner AP. Phases of decompensation during acute ischemia demonstrated in an ex vivo porcine bladder model. Transl Androl Urol 2020; 9:2138-2145. [PMID: 33209677 PMCID: PMC7658133 DOI: 10.21037/tau-20-669] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Background The aim of this project was to develop an ex-vivo porcine bladder model to test the effects of increasing durations of acute ischemia on detrusor function. Methods Porcine bladders were perfused through bilateral vesical arteries at physiologic flow (4 mL/min) and filled through a urethral catheter. Intravesical pressures were continuously recorded using standard urodynamics equipment. Bladder contractions, with simulated voiding, were induced by arterial infusion of KCl at 250 mL. Total, passive, and active pressures were recorded for each contraction and data were normalized to the control fill. Bladders underwent the following perfusion protocol by adjusting the arterial flow rates: Equilibration (4 mL/min), control (4 mL/min), partial ischemia (2 mL/min), global ischemia (0 mL/min) and reperfusion (4 mL/min). Perfusion periods were held for 15 min for one group and 30 min for another group of bladders. Results Porcine bladders (N=19) including 8 (15 min group) and 11 (30 min group) were used. With 15 min ischemia, passive pressure increased 39% (P=0.03) and the active pressure decreased 23% (P=0.002). Total pressure remained constant, identifying a compensated phase. Values returned to baseline with reperfusion. With 30 min ischemia, passive pressure remained unchanged. However, there was a decrease in total pressure 34% (P<0.001) and active pressure 61% (P<0.001), which incompletely recovered to baseline values, identifying a decompensated phase with incomplete recovery upon reperfusion. Conclusion In the porcine bladder, 15 min ischemia resulted in a compensated phase and 30 min ischemia resulted in a decompensated phase of detrusor function. This study provides mechanistic insight into the natural history of ischemia-mediated voiding dysfunction.
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Affiliation(s)
- Natalie R Swavely
- Department of Surgery/Division of Urology, Virginia Commonwealth University School of Medicine, Richmond, VA, USA
| | - Zachary E Cullingsworth
- Department of Mechanical Nuclear Engineering, Virginia Commonwealth University School of Engineering, Richmond, VA, USA
| | - Naveen Nandanan
- Department of Surgery/Division of Urology, Virginia Commonwealth University School of Medicine, Richmond, VA, USA
| | - John E Speich
- Department of Mechanical Nuclear Engineering, Virginia Commonwealth University School of Engineering, Richmond, VA, USA
| | - Adam P Klausner
- Department of Surgery/Division of Urology, Virginia Commonwealth University School of Medicine, Richmond, VA, USA
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Evaluation of oxidative stress in bladder in urethral injuries: an experimental model in rats. REV ROMANA MED LAB 2020. [DOI: 10.2478/rrlm-2020-0029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
Background: The aim of this study is to determine the changes of some oxidative stress parameters following an experimental urethral injury.
Materials and Methods: 24 Wistar-Albino male rats were used and 18 of them were exposed to urethral injury. Total oxidant status (TOS) and total antioxidant capacity (TAC) values in bladder and penile tissues and sera of rats during creation and healing stages of injury (control, day-1, 7 and 21) were examined and evaluated histopathologically.
Results: TOS levels in both tissue and serum groups increased nearly 4x fold in first day following injury. On the seventh day, TOS levels of bladder and penile tissue showed a nearly 50% decrease according to first day (p=0.005; p=0.025, respectively). At the end of third week, while bladder TOS levels decreased to control values, penile tissue TOS levels remained at high levels. The bladder TAC values mildly increased in first day (p=0.026) and then returned to normal levels in seventh day and continued to decrease down by half of control levels at the end of third week (p=0.005). TAC levels of penile tissue increased twofold in first day (p=0.021) and remained at same high levels for three weeks.
Conclusion: We observed that first day after traumatic urethral injury seems to be very important for evaluation of traumatic injuries and wound healing. We believe when an urethral injury was occured, both urethra and bladder should be handled with care and without delay during urethral healing, because of the presence of oxidative changes in bladder.
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Plotnikov EY, Zorov DB. Pros and Cons of Use of Mitochondria-Targeted Antioxidants. Antioxidants (Basel) 2019; 8:antiox8080316. [PMID: 31426455 PMCID: PMC6719234 DOI: 10.3390/antiox8080316] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Accepted: 08/15/2019] [Indexed: 01/03/2023] Open
Abstract
Mitochondrial targeting is a novel strategy, which addresses pathologies originating from mitochondrial dysfunction. Here, one of the most potent therapeutics arises from the group of mitochondria-targeted antioxidants, which specifically quench mitochondrial reactive oxygen species (ROS). They show very high efficacy in the treatment of a diverse array of pathologies encountered in this Special Issue of Antioxidants. However, despite very encouraging results in the use of mitochondria-targeted antioxidants, the mechanistic principle of delivering these agents is, to some extent, counterproductive to the goal of selectively treating a population of damaged mitochondria. The main problem that arises is that injured mitochondria may carry a lower membrane potential when compared with normal ones and as a result, injured mitochondria are capable of taking up less therapeutic antioxidants than healthy mitochondria. Another problem is that the intracellular activity of mitochondrial ROS differs from cytosolic ROS in that they carry specific intracellular functions which are maintained at a delicate equilibrium and which may be disturbed under careless use of antioxidant doses. Consequently, understanding the overall benefit of targeting dysfunctional mitochondria in pathological tissue requires furthering the development of alternative techniques to target mitochondria.
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Affiliation(s)
- Egor Y Plotnikov
- A.N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow 119992, Russia
- V.I. Kulakov National Medical Research Center of Obstetrics, Gynecology and Perinatology, Moscow 117997, Russia
| | - Dmitry B Zorov
- A.N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow 119992, Russia.
- V.I. Kulakov National Medical Research Center of Obstetrics, Gynecology and Perinatology, Moscow 117997, Russia.
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Colaco M, Osman NI, Karakeçi A, Artibani W, Andersson KE, Badlani GH. Current concepts of the acontractile bladder. BJU Int 2018; 122:195-202. [PMID: 29633516 DOI: 10.1111/bju.14236] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
The acontractile bladder (AcB) is a urodynamic-based diagnosis wherein the bladder is unable to demonstrate any contraction during a pressure flow study. Although it is often grouped with underactive bladder, it is a unique phenomenon and should be investigated independently. The purpose of the present review was to examine the current literature on AcB regarding its pathology, diagnosis, current management guidelines, and future developments. We performed a review of the PubMed database, classifying the evidence for AcB pathology, diagnosis, treatment, and potential future treatments. Over the 67 years covered in our review period, 42 studies were identified that met our criteria. Studies were largely poor quality and mainly consisted of retrospective review or animal models. The underlying pathology of AcB is variable with both neurological and myogenic aetiologies. Treatment is largely tailored for renal preservation and reduction of infection. Although future developments may allow more functional restorative treatments, current treatments mainly focus on bladder drainage. AcB is a unique and understudied bladder phenomenon. Treatment is largely based on symptoms and presentation. While cellular therapy and neuromodulation may hold promise, further research is needed into the underlying neuro-urological pathophysiology of this disease so that we may better develop future treatments.
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Affiliation(s)
- Marc Colaco
- Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Nadir I Osman
- Academic Urology Unit, Royal Hallamshire Hospital, Sheffield, UK
| | | | - Walter Artibani
- Urologic Clinic, University Hospital, Ospedale Policlinico, Azienda Ospedaliera Universitaria Integrata, Verona, Italy
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Isaev NK, Stelmashook EV, Genrikhs EE, Korshunova GA, Sumbatyan NV, Kapkaeva MR, Skulachev VP. Neuroprotective properties of mitochondria-targeted antioxidants of the SkQ-type. Rev Neurosci 2016; 27:849-855. [DOI: 10.1515/revneuro-2016-0036] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2016] [Accepted: 07/13/2016] [Indexed: 12/20/2022]
Abstract
AbstractIn 2008, using a model of compression brain ischemia, we presented the first evidence that mitochondria-targeted antioxidants of the SkQ family, i.e. SkQR1 [10-(6′-plastoquinonyl)decylrhodamine], have a neuroprotective action. It was shown that intraperitoneal injections of SkQR1 (0.5–1 μmol/kg) 1 day before ischemia significantly decreased the damaged brain area. Later, we studied in more detail the anti-ischemic action of this antioxidant in a model of experimental focal ischemia provoked by unilateral intravascular occlusion of the middle cerebral artery. The neuroprotective action of SkQ family compounds (SkQR1, SkQ1, SkQTR1, SkQT1) was manifested through the decrease in trauma-induced neurological deficit in animals and prevention of amyloid-β-induced impairment of long-term potentiation in rat hippocampal slices. At present, most neurophysiologists suppose that long-term potentiation underlies cellular mechanisms of memory and learning. They consider inhibition of this process by amyloid-β1-42as anin vitromodel of memory disturbance in Alzheimer’s disease. Further development of the above studies revealed that mitochondria-targeted antioxidants could retard accumulation of hyperphosphorylated τ-protein, as well as amyloid-β1-42, and its precursor APP in the brain, which are involved in developing neurodegenerative processes in Alzheimer’s disease.
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Affiliation(s)
- Nickolay K. Isaev
- 1Department of Bioenergetics, Belozersky Research Institute of Physico-Chemical Biology Lomonosov Moscow State University, Leninsky Gory, 1, b. 40, 119992 Moscow, Russian Federation
- 2Brain Research Department Research Center of Neurology, 125367 Moscow, Russian Federation
| | - Elena V. Stelmashook
- 2Brain Research Department Research Center of Neurology, 125367 Moscow, Russian Federation
| | - Elisaveta E. Genrikhs
- 2Brain Research Department Research Center of Neurology, 125367 Moscow, Russian Federation
| | - Galina A. Korshunova
- 1Department of Bioenergetics, Belozersky Research Institute of Physico-Chemical Biology Lomonosov Moscow State University, Leninsky Gory, 1, b. 40, 119992 Moscow, Russian Federation
| | - Natalya V. Sumbatyan
- 1Department of Bioenergetics, Belozersky Research Institute of Physico-Chemical Biology Lomonosov Moscow State University, Leninsky Gory, 1, b. 40, 119992 Moscow, Russian Federation
| | - Marina R. Kapkaeva
- 2Brain Research Department Research Center of Neurology, 125367 Moscow, Russian Federation
| | - Vladimir P. Skulachev
- 1Department of Bioenergetics, Belozersky Research Institute of Physico-Chemical Biology Lomonosov Moscow State University, Leninsky Gory, 1, b. 40, 119992 Moscow, Russian Federation
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Morosanova MA, Plotnikov EY, Zorova LD, Pevzner IB, Popkov VA, Silachev DN, Jankauskas SS, Babenko VA, Zorov DB. Mechanisms of inflammatory injury of renal tubular cells in a cellular model of pyelonephritis. BIOCHEMISTRY (MOSCOW) 2016; 81:1240-1250. [DOI: 10.1134/s000629791611002x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Silachev DN, Plotnikov EY, Zorova LD, Pevzner IB, Sumbatyan NV, Korshunova GA, Gulyaev MV, Pirogov YA, Skulachev VP, Zorov DB. Neuroprotective Effects of Mitochondria-Targeted Plastoquinone and Thymoquinone in a Rat Model of Brain Ischemia/Reperfusion Injury. Molecules 2015; 20:14487-503. [PMID: 26270657 PMCID: PMC6332348 DOI: 10.3390/molecules200814487] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Revised: 08/03/2015] [Accepted: 08/05/2015] [Indexed: 12/12/2022] Open
Abstract
We explored the neuroprotective properties of natural plant-derived antioxidants plastoquinone and thymoquinone (2-demethylplastoquinone derivative) modified to be specifically accumulated in mitochondria. The modification was performed through chemical conjugation of the quinones with penetrating cations: Rhodamine 19 or tetraphenylphosphonium. Neuroprotective properties were evaluated in a model of middle cerebral artery occlusion. We demonstrate that the mitochondria-targeted compounds, introduced immediately after reperfusion, possess various neuroprotective potencies as judged by the lower brain damage and higher neurological status. Plastoquinone derivatives conjugated with rhodamine were the most efficient, and the least efficiency was shown by antioxidants conjugated with tetraphenylphosphonium. Antioxidants were administered intraperitoneally or intranasally with the latter demonstrating a high level of penetration into the brain tissue. The therapeutic effects of both ways of administration were similar. Long-term administration of antioxidants in low doses reduced the neurological deficit, but had no effect on the volume of brain damage. At present, cationic decylrhodamine derivatives of plastoquinone appear to be the most promising anti-ischemic mitochondria-targeted drugs of the quinone family. We suggest these antioxidants could be potentially used for a stroke treatment.
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Affiliation(s)
- Denis N Silachev
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Leninskye Gory, House 1, Building 40, 119992 Moscow, Russia.
- Institute of Mitoengineering, Lomonosov Moscow State University, Leninskye Gory, House 1, Building 73A, 119992 Moscow, Russia.
| | - Egor Y Plotnikov
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Leninskye Gory, House 1, Building 40, 119992 Moscow, Russia.
- Institute of Mitoengineering, Lomonosov Moscow State University, Leninskye Gory, House 1, Building 73A, 119992 Moscow, Russia.
| | - Ljubava D Zorova
- Institute of Mitoengineering, Lomonosov Moscow State University, Leninskye Gory, House 1, Building 73A, 119992 Moscow, Russia.
- International Laser Center, Lomonosov Moscow State University, Leninskye Gory, House 1, Building 62, 119992 Moscow, Russia.
| | - Irina B Pevzner
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Leninskye Gory, House 1, Building 40, 119992 Moscow, Russia.
- Institute of Mitoengineering, Lomonosov Moscow State University, Leninskye Gory, House 1, Building 73A, 119992 Moscow, Russia.
| | - Natalia V Sumbatyan
- Institute of Mitoengineering, Lomonosov Moscow State University, Leninskye Gory, House 1, Building 73A, 119992 Moscow, Russia.
- Faculty of Chemistry, Lomonosov Moscow State University, Leninskye Gory, House 1, Building 3, 119992 Moscow, Russia.
| | - Galina A Korshunova
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Leninskye Gory, House 1, Building 40, 119992 Moscow, Russia.
- Institute of Mitoengineering, Lomonosov Moscow State University, Leninskye Gory, House 1, Building 73A, 119992 Moscow, Russia.
| | - Mikhail V Gulyaev
- Faculty of Fundamental Medicine, Lomonosov Moscow State University, Lomonosovsky Prospekt, House 31-5, 117192 Moscow, Russia.
| | - Yury A Pirogov
- Faculty of Physics, Lomonosov Moscow State University, Leninskye Gory, House 1, Building 2, 119992 Moscow, Russia.
| | - Vladimir P Skulachev
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Leninskye Gory, House 1, Building 40, 119992 Moscow, Russia.
- Institute of Mitoengineering, Lomonosov Moscow State University, Leninskye Gory, House 1, Building 73A, 119992 Moscow, Russia.
| | - Dmitry B Zorov
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Leninskye Gory, House 1, Building 40, 119992 Moscow, Russia.
- Institute of Mitoengineering, Lomonosov Moscow State University, Leninskye Gory, House 1, Building 73A, 119992 Moscow, Russia.
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Andersson KE, Nomiya M, Sawada N, Yamaguchi O. Pharmacological treatment of chronic pelvic ischemia. Ther Adv Urol 2014; 6:105-14. [PMID: 24883108 DOI: 10.1177/1756287214526768] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Epidemiological studies have shown that lower urinary tract symptoms, including overactive bladder, commonly occur in both men and women, with an age-related increase in both sexes. Vascular endothelial dysfunction and urological symptoms are common in the metabolic syndrome; they also occur during the human ageing process and are independent risk factors for the development of atherosclerosis and hypertension. Pelvic arterial insufficiency may lead to impaired lower urinary tract perfusion and play an important role in the development of bladder dysfunction such as detrusor overactivity and overactive bladder. It seems reasonable, but has not been definitely established clinically, that chronic ischemia-related bladder dysfunction will progress to bladder underactivity. Studies in experimental models in rabbits and rats have shown that pelvic arterial insufficiency may result in significant bladder ischemia with reduced bladder wall oxygen tension, oxidative stress, increased muscarinic receptor activity, ultrastructural damage, and neurodegeneration. Several types of drug may be able to prevent some of these changes. Even if the α1-adrenoceptor blocker, silodosin, the phosphodiesterase type 5 inhibitor, tadalafil, the β3-α1-adrenoceptor agonist, mirabegron, and the free radical scavenger, melatonin, were unable to prevent the development of neointimal hyperplasia and consequent luminal occlusion in animal models, they all exerted a protecting effect on urodynamic parameters, and on the functional and morphological changes of the bladder demonstrable in vitro. The different mechanisms of action of the drugs suggest that many factors are involved in the pathogenesis of chronic ischemia-induced bladder dysfunction and can be targets for intervention. Since several of the agents tested are used clinically and effectively for relieving lower urinary tract symptoms, the results from animal models of chronic bladder ischemia seem to have translational value. Animal models may be of relevance for designing clinical studies to demonstrate if a certain drug may prevent progression of ischemia-related functional and morphological bladder changes.
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Affiliation(s)
- Karl-Erik Andersson
- AIAS, Aarhus Institute of Advanced Studies, Aarhus University, Høegh-Guldbergs Gade 6B, building 1632, 8000 Aarhus C, Denmark
| | - Masanori Nomiya
- Division of Bioengineering and LUTD Research, Nihon University College of Engineering, Koriyama, Japan
| | - Norifumi Sawada
- Department of Urology, Interdisciplinary Graduate School of Medicine, University of Yamanashi, Chuo City, Yamanashi, Japan
| | - Osamu Yamaguchi
- Division of Bioengineering and LUTD Research, Nihon University College of Engineering, Koriyama, Japan
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