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Altunkaynak-Camca HO, Yazihan N. The pretreatment of rats with nebivolol ameliorates bladder contractile dysfunction caused by ischemia-reperfusion injury. Low Urin Tract Symptoms 2020; 13:183-188. [PMID: 32790030 DOI: 10.1111/luts.12338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Revised: 06/02/2020] [Accepted: 06/29/2020] [Indexed: 12/01/2022]
Abstract
OBJECTIVE The present study aimed to investigate the protective effect of nebivolol in the bladder isolated from rats exposed to ischemia-reperfusion (IR) injury. METHODS Sprague-Dawley rats were divided into control, IR, and nebivolol+IR groups. In the nebivolol+IR group, nebivolol was administered (0.4 mg/kg, subcutaneous) in rats prior to IR insult. At the end of the experimental protocol, the urinary bladder was rapidly isolated and bladder strips were mounted in an organ bath. After the equilibration period, potassium chloride (KCl, 20-100 mM) or carbachol (0.01-10 μM) was cumulatively added to the organ bath to generate cumulative concentration-response curves (CCRCs). Oxidative stress and interleukin 6 (IL-6) levels were also evaluated in the bladder tissue. RESULTS The CCRCs of KCl and carbachol were significantly reduced in the IR group compared to those of the control, and this inhibition was reversed by the pretreatment of rats with nebivolol (P < .05). The IR group's total antioxidant status was significantly lower with a concomitant increase in IL-6 levels than that of the control and nebivolol+IR groups (P < .05). CONCLUSIONS The present study indicates that pretreatment of rats with nebivolol (0.4 mg/kg) could improve bladder contractile dysfunction caused by IR injury through suppression of increased oxidative stress and IL-6 levels.
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Affiliation(s)
- Hande O Altunkaynak-Camca
- Department of Pharmacology, Gulhane Faculty of Pharmacy, University of Health Sciences Turkey, Ankara, Turkey
| | - Nuray Yazihan
- Department of Pathophysiology, Faculty of Medicine, Ankara University, Ankara, Turkey
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Flavonoids and Mitochondria: Activation of Cytoprotective Pathways? Molecules 2020; 25:molecules25133060. [PMID: 32635481 PMCID: PMC7412508 DOI: 10.3390/molecules25133060] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 07/01/2020] [Accepted: 07/02/2020] [Indexed: 02/07/2023] Open
Abstract
A large number of diverse mechanisms that lead to cytoprotection have been described to date. Perhaps, not surprisingly, the role of mitochondria in these phenomena is notable. In addition to being metabolic centers, due to their role in cell catabolism, ATP synthesis, and biosynthesis these organelles are triggers and/or end-effectors of a large number of signaling pathways. Their role in the regulation of the intrinsic apoptotic pathway, calcium homeostasis, and reactive oxygen species signaling is well documented. In this review, we aim to characterize the prospects of influencing cytoprotective mitochondrial signaling routes by natural substances of plant origin, namely, flavonoids (e.g., flavanones, flavones, flavonols, flavan-3-ols, anthocyanidins, and isoflavones). Flavonoids are a family of widely distributed plant secondary metabolites known for their beneficial effects on human health and are widely applied in traditional medicine. Their pharmacological characteristics include antioxidative, anticarcinogenic, anti-inflammatory, antibacterial, and antidiabetic properties. Here, we focus on presenting mitochondria-mediated cytoprotection against various insults. Thus, the role of flavonoids as antioxidants and modulators of antioxidant cellular response, apoptosis, mitochondrial biogenesis, autophagy, and fission and fusion is reported. Finally, an emerging field of flavonoid-mediated changes in the activity of mitochondrial ion channels and their role in cytoprotection is outlined.
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Mattos BDS, Soares MSP, Spohr L, Pedra NS, Teixeira FC, Souza AA, Stefanello FM, Baldissarelli J, Gamaro GD, Spanevello RM. Quercetin prevents alterations of behavioral parameters, delta‐aminolevulinic dehydratase activity, and oxidative damage in brain of rats in a prenatal model of autism. Int J Dev Neurosci 2020; 80:287-302. [DOI: 10.1002/jdn.10025] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Accepted: 03/01/2020] [Indexed: 12/27/2022] Open
Affiliation(s)
- Bruna da Silveira Mattos
- Programa de Pós‐Graduação em Bioquímica e Bioprospecção ‐ Laboratório de Neuroquímica Inflamação e Câncer Centro de Ciências Químicas Farmacêuticas e de Alimentos Universidade Federal de Pelotas Pelotas Brazil
| | - Mayara Sandrielly Pereira Soares
- Programa de Pós‐Graduação em Bioquímica e Bioprospecção ‐ Laboratório de Neuroquímica Inflamação e Câncer Centro de Ciências Químicas Farmacêuticas e de Alimentos Universidade Federal de Pelotas Pelotas Brazil
| | - Luiza Spohr
- Programa de Pós‐Graduação em Bioquímica e Bioprospecção ‐ Laboratório de Neuroquímica Inflamação e Câncer Centro de Ciências Químicas Farmacêuticas e de Alimentos Universidade Federal de Pelotas Pelotas Brazil
| | - Nathalia Stark Pedra
- Programa de Pós‐Graduação em Bioquímica e Bioprospecção ‐ Laboratório de Neuroquímica Inflamação e Câncer Centro de Ciências Químicas Farmacêuticas e de Alimentos Universidade Federal de Pelotas Pelotas Brazil
| | - Fernanda Cardoso Teixeira
- Programa de Pós‐Graduação em Bioquímica e Bioprospecção ‐ Laboratório de Neuroquímica Inflamação e Câncer Centro de Ciências Químicas Farmacêuticas e de Alimentos Universidade Federal de Pelotas Pelotas Brazil
| | - Anita Avila Souza
- Programa de Pós‐Graduação em Bioquímica e Bioprospecção ‐ Laboratório de Neuroquímica Inflamação e Câncer Centro de Ciências Químicas Farmacêuticas e de Alimentos Universidade Federal de Pelotas Pelotas Brazil
| | - Francieli Moro Stefanello
- Programa de Pós‐Graduação em Bioquímica e Bioprospecção ‐ Laboratório de Biomarcadores Centro de Ciências Químicas Farmacêuticas e de Alimentos Universidade Federal de Pelotas Pelotas Brazil
| | - Jucimara Baldissarelli
- Programa de Pós‐Graduação em Bioquímica e Bioprospecção ‐ Laboratório de Neuroquímica Inflamação e Câncer Centro de Ciências Químicas Farmacêuticas e de Alimentos Universidade Federal de Pelotas Pelotas Brazil
| | - Giovana Duzzo Gamaro
- Programa de Pós‐Graduação em Bioquímica e Bioprospecção ‐ Laboratório de Neuroquímica Inflamação e Câncer Centro de Ciências Químicas Farmacêuticas e de Alimentos Universidade Federal de Pelotas Pelotas Brazil
| | - Roselia Maria Spanevello
- Programa de Pós‐Graduação em Bioquímica e Bioprospecção ‐ Laboratório de Neuroquímica Inflamação e Câncer Centro de Ciências Químicas Farmacêuticas e de Alimentos Universidade Federal de Pelotas Pelotas Brazil
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Potential Therapeutic Targets of Quercetin and Its Derivatives: Its Role in the Therapy of Cognitive Impairment. J Clin Med 2019; 8:jcm8111789. [PMID: 31717708 PMCID: PMC6912580 DOI: 10.3390/jcm8111789] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Revised: 10/18/2019] [Accepted: 10/21/2019] [Indexed: 12/21/2022] Open
Abstract
Quercetin (QC) is a flavonoid and crucial bioactive compound found in a variety of vegetables and fruits. In preclinical studies, QC has demonstrated broad activity against several diseases and disorders. According to recent investigations, QC is a potential therapeutic candidate for the treatment of nervous system illnesses because of its protective role against oxidative damage and neuroinflammation. QC acts on several molecular signals, including ion channels, neuroreceptors, and inflammatory receptor signaling, and it also regulates neurotrophic and anti-oxidative signaling molecules. While the study of QC in neurological disorders has focused on numerous target molecules, the role of QC on certain molecular targets such as G-protein coupled and nuclear receptors remains to be investigated. Our analysis presents several molecular targets of QC and its derivatives that demonstrate the pharmacological potential against cognitive impairment. Consequently, this article may guide future studies using QC and its analogs on specific signaling molecules. Finding new molecular targets of QC and its analogs may ultimately assist in the treatment of cognitive impairment.
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Kim JK, Park SU. Quercetin and its role in biological functions: an updated review. EXCLI JOURNAL 2018; 17:856-863. [PMID: 30233284 PMCID: PMC6141818 DOI: 10.17179/excli2018-1538] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/15/2018] [Accepted: 08/18/2018] [Indexed: 12/24/2022]
Affiliation(s)
- Jae Kwang Kim
- Division of Life Sciences and Convergence Research Center for Insect Vectors, Incheon National University, Incheon 22012, Korea
| | - Sang Un Park
- Department of Crop Science, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon, 34134, Korea
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Alidadi H, Khorsandi L, Shirani M. Effects of Quercetin on Tubular Cell Apoptosis and Kidney Damage in Rats Induced by Titanium Dioxide Nanoparticles. Malays J Med Sci 2018; 25:72-81. [PMID: 30918457 PMCID: PMC6422581 DOI: 10.21315/mjms2018.25.2.8] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Accepted: 02/06/2018] [Indexed: 10/28/2022] Open
Abstract
Background Recent studies have demonstrated that many nanoparticles have an adverse or toxic effect on the kidney. Objective To investigate the nephroprotective effect of quercetin (QT) against renal injury induced by titanium dioxide nanoparticles (NTiO2) in rats. Methods NTiO2-intoxicated rats received 50 mg/kg of NTiO2 for seven days. The QT + NTiO2 group was pretreated with QT for seven days before being administered NTiO2. Uric acid, creatinine, and blood urea nitrogen were considered to be biomarkers of nephrotoxicity. Catalase (CAT) and superoxide dismutase (SOD) activities and renal levels of malondialdehyde (MDA) were measured to assess the oxidative stress caused by NTiO2. Results NTiO2 significantly increased the plasma level of the biomarkers. It also significantly decreased the activities of CAT (P = 0.008) and SOD (P = 0.004), and significantly increased the MDA levels (P = 0.007). NTiO2 caused proximal tubule damage, the accumulation of red blood cells, the infiltration of inflammatory cells, and reduced the glomerular diameters, as well as induced apoptosis in the proximal tubules. Pre-treatment with QT attenuated the histological changes, normalised the plasma biomarkers, suppressed oxidative stress, ameliorated the activities of CAT (P = 0.007) and SOD (P = 0.006), and reduced apoptosis (P < 0.001). Conclusion QT was found to have a potent protective effect against nephrotoxicity induced by NTiO2 in rats. It also reduced apoptosis caused by NTiO2.
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Affiliation(s)
- Hadis Alidadi
- Student Research committee, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.,Department of Toxicology, Faculty of Pharmacy, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Layasadat Khorsandi
- Cell & Molecular Research Center, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Maryam Shirani
- Department of Toxicology, Faculty of Pharmacy, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
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Lin M, Wang N, Yao B, Zhong Y, Lin Y, You T. Quercetin improves postpartum hypogalactia in milk-deficient mice via stimulating prolactin production in pituitary gland. Phytother Res 2018; 32:1511-1520. [PMID: 29671937 DOI: 10.1002/ptr.6079] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Revised: 03/03/2018] [Accepted: 03/07/2018] [Indexed: 01/16/2023]
Abstract
Postpartum dysgalactia is a common clinical problem for lactating women. Seeking out the safe and efficient phytoestrogens will be a promising strategy for postpartum dysgalactia therapy. In this study, the postpartum mice within four groups, including control group, the model group, and the treatment groups intragastrically administrated with normal saline, bromocriptine, bromocriptine plus 17α-ethinyl estradiol, and bromocriptine plus quercetin, respectively, were used. The results showed that quercetin, a kind of natural phytoestrogen, could efficiently promote lactation yield and mammary gland development in the agalactosis mice produced by bromocriptine administration. Mechanically, quercetin, such as 17α-ethinyl estradiol, significantly stimulated prolactin (PRL) production and deposition in the mammary gland in the agalactosis mice determined by western blotting, quantitative polymerase chain reaction, and enzyme-linked immunosorbent assay, respectively. Furthermore, quercetin could increase the expression of β-casein, stearoyl-CoA desaturase, fatty acid synthase, and α-lactalbumin in the breast tissues that are responsible for the production of fatty acid, lactose, and galactose in the milk at the transcriptional level determined by quantitative polymerase chain reaction. Specifically, quercetin promoted primary mammary epithelial cell proliferation and stimulated prolactin receptor (PRLR) expression probably via AKT activation in vitro. In conclusion, this study indicates that estrogen-like quercetin promotes mammary gland development and lactation yield in milk-deficient mice, probably via stimulating PRL expression and release from the pituitary gland, as well as induces PRLR expression in primary mammary epithelial cells.
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Affiliation(s)
- Man Lin
- School of Nursing, Guangdong Pharmaceutical University, Guangzhou, China
| | - Na Wang
- Department of gynecology, the Eleventh People's Hospital of Guangzhou, Guangzhou, China
| | - Bei Yao
- Department of Clinical Pharmacy, School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, China
| | - Yao Zhong
- School of Nursing, Guangdong Pharmaceutical University, Guangzhou, China
| | - Yan Lin
- Department of Nursing, Guangzhou Women and Children Medical Center, Guangzhou, China
| | - Tianhui You
- School of Nursing, Guangdong Pharmaceutical University, Guangzhou, China.,Guangzhou key laboratory of construction and application of new drug screening model systems, Guangdong Pharmaceutical University, Guangzhou, China
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Insights on Localized and Systemic Delivery of Redox-Based Therapeutics. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:2468457. [PMID: 29636836 PMCID: PMC5832094 DOI: 10.1155/2018/2468457] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Accepted: 12/18/2017] [Indexed: 12/12/2022]
Abstract
Reactive oxygen and nitrogen species are indispensable in cellular physiology and signaling. Overproduction of these reactive species or failure to maintain their levels within the physiological range results in cellular redox dysfunction, often termed cellular oxidative stress. Redox dysfunction in turn is at the molecular basis of disease etiology and progression. Accordingly, antioxidant intervention to restore redox homeostasis has been pursued as a therapeutic strategy for cardiovascular disease, cancer, and neurodegenerative disorders among many others. Despite preliminary success in cellular and animal models, redox-based interventions have virtually been ineffective in clinical trials. We propose the fundamental reason for their failure is a flawed delivery approach. Namely, systemic delivery for a geographically local disease limits the effectiveness of the antioxidant. We take a critical look at the literature and evaluate successful and unsuccessful approaches to translation of redox intervention to the clinical arena, including dose, patient selection, and delivery approach. We argue that when interpreting a failed antioxidant-based clinical trial, it is crucial to take into account these variables and importantly, whether the drug had an effect on the redox status. Finally, we propose that local and targeted delivery hold promise to translate redox-based therapies from the bench to the bedside.
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