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Ijaz MU, Shahid H, Hayat MF, Khan HA, Al-Ghanim KA, Riaz MN. The therapeutic potential of isosakuranetin against perfluorooctane sulfonate instigated cardiac toxicity via modulating Nrf-2/Keap-1 pathway, inflammatory, apoptotic, and histological profile. Cell Biochem Funct 2024; 42:e4060. [PMID: 38816947 DOI: 10.1002/cbf.4060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2024] [Revised: 05/02/2024] [Accepted: 05/12/2024] [Indexed: 06/01/2024]
Abstract
Perfluorooctane sulfonate (PFOS) is a pervasive organic toxicant that damages body organs, including heart. Isosakuranetin (ISN) is a plant-based flavonoid that exhibits a broad range of pharmacological potentials. The current investigation was conducted to evaluate the potential role of ISN to counteract PFOS-induced cardiac damage in rats. Twenty-four albino rats (Rattus norvegicus) were distributed into four groups, including control, PFOS (10 mg/kg) intoxicated, PFOS + ISN (10 mg/kg + 20 mg/kg) treated, and ISN (20 mg/kg) alone supplemented group. It was revealed that PFOS intoxication reduced the expressions of Nrf-2 and its antioxidant genes while escalating the expression of Keap-1. Furthermore, PFOS exposure reduced the activities of glutathione reductase (GSR), superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx), glutathione S-transferase (GST), Heme oxygenase-1 (HO-1) and glutathione (GSH) contents while upregulating the levels of reactive oxygen species (ROS) and malondialdehyde (MDA). Besides, PFOS administration upregulated the levels of creatine kinase-MB (CK-MB), troponin I, creatine phosphokinase (CPK), and lactate dehydrogenase (LDH). Moreover, the levels of tumor necrosis factor-alpha (TNF-α), nuclear factor kappa-B (NF-κB), interleukin-6 (IL-6), and interleukin-1β (IL-1β) were increased after PFOS intoxication. Additionally, PFOS exposure downregulated the expression of Bcl-2 while upregulating the expressions of Bax and Caspase-3. Furthermore, PFOS administration disrupted the normal architecture of cardiac tissues. Nonetheless, ISN treatment remarkably protected the cardiac tissues via regulating aforementioned dysregulations owing to its antioxidative, anti-inflammatory, and antiapoptotic properties.
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Affiliation(s)
- Muhammad Umar Ijaz
- Department of Zoology, Wildlife and Fisheries, University of Agriculture, Faisalabad, Pakistan
| | - Humna Shahid
- Department of Zoology, Wildlife and Fisheries, University of Agriculture, Faisalabad, Pakistan
| | - Muhammad Faisal Hayat
- Department of Zoology, Wildlife and Fisheries, University of Agriculture, Faisalabad, Pakistan
| | - Hammad Ahmad Khan
- Department of Zoology, Wildlife and Fisheries, University of Agriculture, Faisalabad, Pakistan
| | - Khalid A Al-Ghanim
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
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Howes LG, Unni T, Hamza A, Howes JB, Jayasinghe R. Reduction in Arterial Stiffness Index (SI) in Response to Combination Antioxidant Therapy. J Clin Med 2023; 12:6804. [PMID: 37959269 PMCID: PMC10650663 DOI: 10.3390/jcm12216804] [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: 08/14/2023] [Revised: 09/26/2023] [Accepted: 10/13/2023] [Indexed: 11/15/2023] Open
Abstract
Antioxidants reduce arterial stiffness, but the effects previously reported are weak. A systematic review of the antioxidants vitamin E, vitamin C, vitamin A, and beta-carotenes (the most commonly studied antioxidants) on pulse wave velocity (PWV) found an effect size of only -0.20 (approximately -16 m/s or -2.5%). Studies in rats of the potent pro-oxidant substance acetaldehyde have shown that combinations of sulfur-containing antioxidants, including thiamine and l-cysteine, with ascorbic acid potently protect against oxidative-stress-mediated mortality. The effects of these combinations of oxidants on PWV have not been studied. The present study evaluated the effects of 2 weeks of therapy with a combination of sulfur-containing antioxidants (cysteine, thiamine, and pyridoxine) in combination with ascorbic acid on stiffness index (SI), a measure of arterial stiffness that is strongly correlated with PWV, using a Pulse Trace recorder in a diverse group of 78 volunteers. SI fell by -1.7 m/s relative to placebo (95% confidence intervals -0.6 to -2.7 m/s), a reduction of -19% (95% confidence intervals -9% to -31%). The Glass effect size was 1.4, indicating a very strong treatment effect which was substantially greater than the effect size found in previous studies of antioxidants. PWV reduction was correlated significantly with increasing age. Further studies of similar antioxidant combinations are required to determine whether they are of value in the treatment or prevention of cardiovascular disease.
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Affiliation(s)
- Laurence Guy Howes
- Department of Cardiology, Gold Coast University Hospital, Gold Coast 4215, Australia;
- School of Medicine, Griffith University, Gold Coast 4215, Australia
- School of Medicine, Bond University, Gold Coast 4227, Australia
| | - Tanya Unni
- Amtan Medical Centers, Gold Coast 4208, Australia; (T.U.); (A.H.)
| | - Ameer Hamza
- Amtan Medical Centers, Gold Coast 4208, Australia; (T.U.); (A.H.)
| | - Jan B. Howes
- Phoenix Pharmaceuticals Australia Pty Ltd., Sanctuary Cove, Gold Coast 4212, Australia;
| | - Rohan Jayasinghe
- Department of Cardiology, Gold Coast University Hospital, Gold Coast 4215, Australia;
- School of Medicine, Griffith University, Gold Coast 4215, Australia
- School of Medicine, Bond University, Gold Coast 4227, Australia
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AlDreini S, Fatfat Z, Abou Ibrahim N, Fatfat M, Gali-Muhtasib H, Khalife H. Thymoquinone enhances the antioxidant and anticancer activity of Lebanese propolis. World J Clin Oncol 2023; 14:203-214. [PMID: 37275937 PMCID: PMC10236984 DOI: 10.5306/wjco.v14.i5.203] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 03/24/2023] [Accepted: 04/12/2023] [Indexed: 05/19/2023] Open
Abstract
BACKGROUND Reactive oxygen species (ROS) are produced by multiple cellular processes and are maintained at optimal levels in normal cells by endogenous antioxidants. In recent years, the search for potential exogenous antioxidants from dietary sources has gained considerable attention to eliminate excess ROS that is associated with oxidative stress related diseases including cancer. Propolis, a resinous honeybee product, has been shown to have protective effects against oxidative stress and anticancer effects against several types of neoplasms.
AIM To investigate the antioxidant and anticancer potential of Lebanese propolis when applied alone or in combination with the promising anticancer compound Thymoquinone (TQ) the main constituent of Nigella sativa essential oil.
METHODS Crude extracts of Lebanese propolis collected from two locations, Rashaya and Akkar-Danniyeh, were prepared in methanol and the total phenolic content was determined by Folin–Ciocalteu method. The antioxidant activity was assessed by the ability to scavenge 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical and to inhibit H2O2-induced oxidative hemolysis of human erythrocytes. The anticancer activity was evaluated by [3-(4,5-dimethylthiazol-2-yl)-2,5 diphenyl tetrazolium bromide] MTT assay against HCT-116 human colorectal cancer cells and MDA-MB-231 human breast cancer cells.
RESULTS The total phenolic content of propolis extract from Rashaya and Akkar-Danniyeh were 56.81 µg and 83.503 µg of gallic acid equivalent /mg of propolis, respectively. Both natural agents exhibited strong antioxidant activities as evidenced by their ability to scavenge DPPH free radical and to protect erythrocytes against H2O2-induced hemolysis. They also dose-dependently decreased the viability of both cancer cell lines. The IC50 value of each of propolis extract from Rashaya and Akkar-Danniyeh or TQ was 22.3, 61.7, 40.44 µg/mL for breast cancer cells at 72 h and 33.3, 50.9, 33.5 µg/mL for colorectal cancer cells at the same time point, respectively. Importantly, the inhibitory effects of propolis on DPPH radicals and cancer cell viability were achieved at half its concentration when combined with TQ.
CONCLUSION Our results indicate that Lebanese propolis extract has antioxidant and anticancer potential and its combination with TQ could possibly prevent ROS- mediated diseases.
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Affiliation(s)
- Sima AlDreini
- Rammal Rammal Laboratory (ATAC Group), Faculty of Sciences I, Hadath 1003, Lebanon
| | - Zaynab Fatfat
- Department of Biology, American University of Beirut, Beirut 1107-2020, Lebanon
| | - Najwa Abou Ibrahim
- Rammal Rammal Laboratory (ATAC Group), Faculty of Sciences I, Hadath 1003, Lebanon
| | - Maamoun Fatfat
- Department of Biology, American University of Beirut, Beirut 1107-2020, Lebanon
| | - Hala Gali-Muhtasib
- Department of Biology, American University of Beirut, Beirut 1107-2020, Lebanon
| | - Hala Khalife
- Rammal Rammal Laboratory (ATAC Group), Faculty of Sciences I, Hadath 1003, Lebanon
- Applied Biochemistry Laboratory, School of Pharmacy, Camerino University, Camerino 62032, Italy
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Kacemi R, Campos MG. Translational Research on Bee Pollen as a Source of Nutrients: A Scoping Review from Bench to Real World. Nutrients 2023; 15:nu15102413. [PMID: 37242296 DOI: 10.3390/nu15102413] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 05/11/2023] [Accepted: 05/15/2023] [Indexed: 05/28/2023] Open
Abstract
The emphasis on healthy nutrition is gaining a forefront place in current biomedical sciences. Nutritional deficiencies and imbalances have been widely demonstrated to be involved in the genesis and development of many world-scale public health burdens, such as metabolic and cardiovascular diseases. In recent years, bee pollen is emerging as a scientifically validated candidate, which can help diminish conditions through nutritional interventions. This matrix is being extensively studied, and has proven to be a very rich and well-balanced nutrient pool. In this work, we reviewed the available evidence on the interest in bee pollen as a nutrient source. We mainly focused on bee pollen richness in nutrients and its possible roles in the main pathophysiological processes that are directly linked to nutritional imbalances. This scoping review analyzed scientific works published in the last four years, focusing on the clearest inferences and perspectives to translate cumulated experimental and preclinical evidence into clinically relevant insights. The promising uses of bee pollen for malnutrition, digestive health, metabolic disorders, and other bioactivities which could be helpful to readjust homeostasis (as it is also true in the case of anti-inflammatory or anti-oxidant needs), as well as the benefits on cardiovascular diseases, were identified. The current knowledge gaps were identified, along with the practical challenges that hinder the establishment and fructification of these uses. A complete data collection made with a major range of botanical species allows more robust clinical information.
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Affiliation(s)
- Rachid Kacemi
- Observatory of Drug-Herb Interactions, Laboratory of Pharmacognosy, Faculty of Pharmacy, University of Coimbra, Heath Sciences Campus, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal
| | - Maria G Campos
- Observatory of Drug-Herb Interactions, Laboratory of Pharmacognosy, Faculty of Pharmacy, University of Coimbra, Heath Sciences Campus, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal
- Coimbra Chemistry Centre (CQC, FCT Unit 313), Faculty of Science and Technology, University of Coimbra, Rua Larga, 3004-516 Coimbra, Portugal
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Investigation of the relationship between serum adropin levels, oxidative stress biomarkers, and blood pressure in DOCA-salt hypertensive rats. JOURNAL OF SURGERY AND MEDICINE 2022. [DOI: 10.28982/josam.1061010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Background/Aim: Adropin is involved in the pathophysiology and development of cardiovascular diseases, such as hypertension. The aim of this study was to investigate the effects of adropin in serum, potential use as a biochemical biomarker of oxidative stress, and effects on blood pressure in deoxycorticosterone acetate (DOCA) salt hypertensive rats.
Methods: Eighteen male Sprague-Dawley rats were divided into two groups: (1) Control (C) and (2) Hypertensive (H). Systolic and diastolic blood pressures (SBP and DBP, respectively), and mean blood pressure (MBP) were measured using the tail-cuff method. At the end of the study, serum endothelin-1 (ET-1), adropin, nitric oxide (NO), total antioxidant status (TAS), total oxidant status (TOS), and oxidative stress index (OSI) were also analyzed.
Results: Significant increases in SBP, DBP, MBP, cardiac hypertrophy index (CHI), and left ventricular hypertrophy index (LVCI) in the H group compared with the C group were found. Serum levels of ET-1, TOS, and OSI were significantly higher in the H group and serum levels of NO, adropin, and TAS were lower than in the C group. A negative correlation between serum adropin levels and the variables SBP, DBP, MBP, TOS, OSI, CHI, and LVHI was found. Adropin levels were positively correlated positively with serum NO levels in both groups.
Conclusion: Serum adropin levels decreased in hypertensive DOCA-salt rats. Lower serum adropin levels were found to be significantly associated with hypertension and may play a role in this disease. However, further comprehensive and diverse studies are needed.
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Zulhendri F, Lesmana R, Tandean S, Christoper A, Chandrasekaran K, Irsyam I, Suwantika AA, Abdulah R, Wathoni N. Recent Update on the Anti-Inflammatory Activities of Propolis. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27238473. [PMID: 36500579 PMCID: PMC9740431 DOI: 10.3390/molecules27238473] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 10/31/2022] [Accepted: 11/02/2022] [Indexed: 12/09/2022]
Abstract
In recent years, research has demonstrated the efficacy propolis as a potential raw material for pharmaceuticals and nutraceuticals. There is limited report detailing the mechanisms of action of propolis and its bioactive compounds in relation to their anti-inflammatory properties. Thus, the aim of the present review is to examine the latest experimental evidence (2017-2022) regarding the anti-inflammatory properties of propolis. A systematic scoping review methodology was implemented. After applying the exclusion criteria, a total of 166 research publications were identified and retrieved from Scopus, Web of Science, and Pubmed. Several key themes related to the anti-inflammatory properties of propolis were subsequently identified, namely in relation to cancers, oral health, metabolic syndrome, organ toxicity and inflammation, immune system, wound healing, and pathogenic infections. Based on the latest experimental evidence, propolis is demonstrated to possess various mechanisms of action in modulating inflammation towards the regulatory balance and anti-inflammatory environment. In general, we summarize that propolis acts as an anti-inflammatory substance by inhibiting and downregulating TLR4, MyD88, IRAK4, TRIF, NLRP inflammasomes, NF-κB, and their associated pro-inflammatory cytokines such as IL-1β, IL-6, IFN-γ, and TNF-α. Propolis also reduces the migration of immune cells such as macrophages and neutrophils, possibly by downregulating the chemokines CXCL9 and CXCL10.
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Affiliation(s)
- Felix Zulhendri
- Center of Excellence in Higher Education for Pharmaceutical Care Innovation, Universitas Padjadjaran, Bandung 45363, Indonesia
- Kebun Efi, Kabanjahe 22171, Indonesia
| | - Ronny Lesmana
- Center of Excellence in Higher Education for Pharmaceutical Care Innovation, Universitas Padjadjaran, Bandung 45363, Indonesia
- Physiology Division, Department of Biomedical Sciences, Faculty of Medicine, Universitas Padjadjaran, Bandung 45363, Indonesia
- Biological Activity Division, Central Laboratory, Universitas Padjadjaran, Bandung 45363, Indonesia
- Correspondence: (R.L.); (S.T.)
| | - Steven Tandean
- Department of Neurosurgery, Faculty of Medicine, Universitas Sumatera Utara, Medan 20222, Indonesia
- Correspondence: (R.L.); (S.T.)
| | - Andreas Christoper
- Postgraduate Program of Medical Science, Faculty of Medicine, Universitas Padjadjaran, Bandung 45363, Indonesia
| | | | - Ilham Irsyam
- Department of Orthopaedics and Traumatology, Faculty of Medicine, Universitas Sumatera Utara, Medan 20222, Indonesia
| | - Auliya A. Suwantika
- Center of Excellence in Higher Education for Pharmaceutical Care Innovation, Universitas Padjadjaran, Bandung 45363, Indonesia
- Department of Pharmacology and Clinical Pharmacy, Faculty of Pharmacy, Universitas Padjadjaran, Bandung 45363, Indonesia
| | - Rizky Abdulah
- Center of Excellence in Higher Education for Pharmaceutical Care Innovation, Universitas Padjadjaran, Bandung 45363, Indonesia
- Department of Pharmacology and Clinical Pharmacy, Faculty of Pharmacy, Universitas Padjadjaran, Bandung 45363, Indonesia
| | - Nasrul Wathoni
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Universitas Padjadjaran, Sumedang 45363, Indonesia
- Research Center of Biopolymers for Drug and Cosmetic Delivery, Bandung 45363, Indonesia
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Abd El-Hakam FEZ, Abo Laban G, Badr El-Din S, Abd El-Hamid H, Farouk MH. Apitherapy combination improvement of blood pressure, cardiovascular protection, and antioxidant and anti-inflammatory responses in dexamethasone model hypertensive rats. Sci Rep 2022; 12:20765. [PMID: 36456799 PMCID: PMC9714403 DOI: 10.1038/s41598-022-24727-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Accepted: 11/18/2022] [Indexed: 12/03/2022] Open
Abstract
Hypertension-induced ventricular and vascular remodeling causes myocardial infarction, heart failure, and sudden death. Most available pharmaceutical products used to treat hypertension lead to adverse effects on human health. Limited data is available on apitherapy (bee products) combinations for treatment of hypertension. This study aims to evaluate the antihypertensive effects of combinations of natural apitherapy compounds used in the medical sector to treat a variety of diseases. Rats were assigned into six groups consisting of one control group and five hypertensive groups where hypertension (blood pressure > 140/90) was induced with dexamethasone. One of these groups was used as a hypertension model, while the remaining four hypertensive groups were treated with a propolis, royal jelly, and bee venom combination (PRV) at daily oral doses of 0.5, 1.0, and 2.0 mg/kg, and with losartan 10 mg/kg. The PRV combination at all doses decreased arterial blood pressure below the suboptimal value (p < 0.001), and PRV combination treatment improved dexamethasone-induced-ECG changes. The same treatment decreased angiotensin-II, endothelin-1, and tumor growth factor β serum levels in hypertensive rats. Additionally, PRV combination improved histopathological structure, and decreased serum levels of NF-kB and oxidative stress biomarkers. We concluded that PRV combination therapy may be used as a potential treatment for a variety of cardiovascular diseases.
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Affiliation(s)
- Fatma El-Zahraa Abd El-Hakam
- grid.411303.40000 0001 2155 6022Pharmacology Department, Faculty of Medicine for Girls, Al-Azhar University, Nasr City, 11884 Cairo Egypt
| | - Gomaa Abo Laban
- grid.411303.40000 0001 2155 6022Plant Protection Department, Faculty of Agriculture, Al-Azhar University, Nasr City, 11884 Cairo Egypt
| | - Sahar Badr El-Din
- grid.411303.40000 0001 2155 6022Pharmacology Department, Faculty of Medicine for Girls, Al-Azhar University, Nasr City, 11884 Cairo Egypt
| | - Hala Abd El-Hamid
- grid.411303.40000 0001 2155 6022Pathology Department, Faculty of Medicine for Girls, Al-Azhar University, Nasr City, 11884 Cairo Egypt
| | - Mohammed Hamdy Farouk
- grid.411303.40000 0001 2155 6022Animal Production Department, Faculty of Agriculture, Al-Azhar University, Nasr City, 11884 Cairo Egypt
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8
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Baghcheghi Y, Beheshti F, Seyedi F, Hosseini M, Hedayati-Moghadam M. Thymoquinone improved redox homeostasis in the heart and aorta of hypothyroid rats. Clin Exp Hypertens 2022; 44:656-662. [PMID: 35942678 DOI: 10.1080/10641963.2022.2108046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
OBJECTIVES Propylthiouracil (PTU) is a common drug that is used in medicine for treating hyperthyroidism. Furthermore, hypothyroidism can also be induced with PTU. Considering the antioxidant effects of thymoquinone (TMQ), this study was designed to find out whether TMQ could counteract the oxidative damage in the heart and aorta tissues induced by hypothyroidism in rats. METHODS Animals were arranged into four groups: (1) Control, (2) PTU, (3) PTU-TMQ 5, and (4) PTU-TMQ 10. Hypothyroidism was induced in rats by giving 0.05% PTU in drinking water. PTU and TMQ (5 and 10 mg/kg, ip) treatments were done for 42 days. Finally, the animals were sacrificed and the serum of the rats was collected for thyroxine level assessment. The heart and aorta tissues were also removed for biochemical oxidative stress markers measurement. RESULTS A lower serum thyroxine level was observed after PTU treatment compared to the control group. Hypothyroidism also was accompanied by a decrease of thiol content, and superoxide dismutase (SOD), and catalase (CAT) activities in the heart and aorta tissues while increased malondialdehyde (MDA). Furthermore, a significant reduction in oxidative damage was noted in the heart and aorta following the administration of TMQ (5 and 10 mg/kg) which was indicated by the reduction in MDA and improved activities of SOD, CAT, and thiol. CONCLUSION In this study, TMQ was found to improve oxidative damages in the heart and aorta tissues of hypothyroid rats.
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Affiliation(s)
- Yousef Baghcheghi
- Student Research Committee Jiroft University of Medical Sciences, Jiroft, Iran
| | - Farimah Beheshti
- Neuroscience Research Center, Torbat Heydariyeh University of Medical Sciences, Torbat Heydariyeh, Iran.,Department of Physiology, School of Paramedical Sciences, Torbat Heydariyeh University of Medical Sciences, Torbat Heydariyeh, Iran
| | - Fatemeh Seyedi
- Student Research Committee Jiroft University of Medical Sciences, Jiroft, Iran.,Department of Anatomical Sciences, School of Medicine, Jiroft University of Medical Sciences, Jiroft, Iran
| | - Mahmoud Hosseini
- Psychiatry and Behavioral Sciences Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.,Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mahdiyeh Hedayati-Moghadam
- Student Research Committee Jiroft University of Medical Sciences, Jiroft, Iran.,Department of Physiology, School of Medicine, Jiroft University of Medical Sciences, Jiroft, Iran
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Alamgeer, Asif H, Chohan TA, Irfan HM, Asim MH, Bukhari SNA, Younis W, Althobaiti YS, Ullah A, Khan AQ, Hakami AY. Ex vivo, in vitro, and in silico approaches to unveil the mechanisms underlying vasorelaxation effect of Mentha Longifolia (L.) in porcine coronary artery. Biomed Pharmacother 2022; 153:113298. [PMID: 35759866 DOI: 10.1016/j.biopha.2022.113298] [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: 04/04/2022] [Revised: 06/09/2022] [Accepted: 06/13/2022] [Indexed: 11/26/2022] Open
Abstract
OBJECTIVE Mentha (M.) longifolia (L.) is traditionally used for various ailments. The current study was intended to explore the underlying vasorelaxation mechanisms of M. longifolia. MATERIAL AND METHODS Aqueous-methanol extract from the aerial parts of M. longifolia was prepared and subjected to activity-guided fractionation. The vasorelaxant activity was performed using porcine coronary arteries with intact and denuded endothelium. In-vitro PDE inhibitory activity of the active fraction was carried out using the radio-enzymatic assay. The active fraction was also subjected to GCMS. Docking and molecular dynamic simulation studies were also performed RESULT: We had observed that aqueous-methanolic extract induced relaxation in the coronary artery in a dose-dependent manner when the endothelium was intact and denuded. n-butanol fraction (MLB) has produced a maximum effect, and it was selected for mechanistic studies. MLB has significantly enhanced the relaxation produced by cAMP and cGMP, elevating atrial natriuretic peptide, sodium nitroprusside, isoproterenol, and forskolin. The pre-treatment with MLB inhibited the contractile response produced by KCl, U46619, and CaCl2 in without endothelium rings. MLB has non-selectively inhibited the PDE isoforms. GCMS analysis of MLB has revealed the presence of menthol, thymol, and carvacrol in the active fraction. Docking and molecular dynamic simulation studies have indicated that thymol can be a competitive inhibitor for PDE1. CONCLUSION It is postulated that an n-butanol fraction of Mentha longifolia produced endothelium-independent relaxation due to increased levels of cAMP and cGMP caused by the inhibition of various PDEs.
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Affiliation(s)
- Alamgeer
- Punjab University College of Pharmacy, University of the Punjab, Lahore, Pakistan; College of Pharmacy University of Sargodha, Sargodha, Pakistan.
| | - Hira Asif
- Lahore Pharmacy College, Lahore Medical and Dental College, Lahore, 54850 Lahore, Pakistan
| | - Tahir Ali Chohan
- Institute of Pharmaceutical Sciences, the University of Veterinary and Animal Sciences, Lahore, Pakistan
| | | | | | - Syed Nasir Abbas Bukhari
- Department of Pharmaceutical Chemistry, College of Pharmacy, Jouf University, Sakaka, Al Jouf 72388, Saudi Arabia
| | - Waqas Younis
- Faculty of Pharmacy, the University of Lahore, Pakistan
| | - Yusuf S Althobaiti
- Department of Pharmacology and Toxicology, College of Pharmacy, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia; Addiction and Neuroscience Research Unit, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia.
| | - Aman Ullah
- College of Pharmaceutical Sciences, Shifa Tameer-e-Millat University, Islamabad 44000, Pakistan
| | - Abdul Qayyum Khan
- School of Pharmacy, University of Management and Technology Lahore, Pakistan
| | - Alqassem Y Hakami
- College of Medicine, King Saud Bin Abdulaziz University for Health Sciences, Jeddah, Saudi Arabia; King Abdullah International Medical Research Center, Jeddah, Saudi Arabia
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Salehi A, Hosseini SM, Kazemi S. Antioxidant and Anticarcinogenic Potentials of Propolis for Dimethylhydrazine-Induced Colorectal Cancer in Wistar Rats. BIOMED RESEARCH INTERNATIONAL 2022; 2022:8497562. [PMID: 35782078 PMCID: PMC9246617 DOI: 10.1155/2022/8497562] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 05/25/2022] [Accepted: 06/14/2022] [Indexed: 12/30/2022]
Abstract
Propolis is a natural compound with anticarcinogenic properties. The present study aimed to compare the inhibitory effect of ethanolic extract of propolis (EEP) and vitamin E on dimethylhydrazine-induced colon lesions in rats. In this study, 60 rats were randomly categorized into six 10-member groups. After 13 weeks, blood and colon tissue were sampled to examine some factors. The parameters included red (RBC) and white (WBC) blood cell profile, lactate dehydrogenase (LDH), C-reactive protein (CRP), total protein (TP), creatine kinase (CPK), and albumin, as well as the extent of colon histological lesions, protein expression (adenomatous polyposis coli (APC), proliferating cell nuclear antigen (PCNA), carcinoembryonic antigen (CEA), and platelet-derived growth factor (PDGF)), and oxidative stress markers (total antioxidant capacity (TAC), malondialdehyde (MDA), and superoxide dismutase (SOD)) in colon tissue. A significant decrease was observed in congestion, mitotic index, inflammation, and cell destruction in colon tissue in dimethylhydrazine group in comparison with the control group (P < 0.05). The EEP exposed rats exhibited a significant lower oxidative stress than the DMH group (P < 0.05). Furthermore, the extract significantly affected TAC level (P < 0.05). While the expression level of APC rose substantially in the EEP-treated group compared to the DMH group, the level of PCNA, CEA, and PDGF proteins significantly reduced. It seems that the EEP can efficiently prevent DMH-induced colonic lesions. Furthermore, its effectiveness is more than the vitamin E, which is a strong antioxidant.
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Affiliation(s)
- Alireza Salehi
- Department of Pathology, Babol Branch, Islamic Azad University, Babol, Iran
| | | | - Sohrab Kazemi
- Cellular and Molecular Biology Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran
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Sun MT, Wu TJ, Lin YK, Lin YP, Chang YC, Lin GM. Effects of Sacubitril/Valsartan Versus Telmisartan in Type 2 Diabetic or Pre-Diabetic Patients with Hypertension and Without Heart Failure: The Rationale and Design of A Randomized Clinical Trial. Cardiovasc Hematol Disord Drug Targets 2022; 22:CHDDT-EPUB-122422. [PMID: 35400328 DOI: 10.2174/1871529x22666220408223329] [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: 08/13/2021] [Revised: 09/27/2021] [Accepted: 12/23/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND Sacubitril/valsartan has revealed superior glycemic and blood pressure control compared with enalapril and irbesartan in patients with heart failure and type 2 diabetes and in individuals with chronic kidney disease. However, whether the effects of sacubitril/valsartan remain the same in those without heart failure is unknown. METHODS A multicenter randomized double-blinded trial will be carried out in five military hospitals in Taiwan for a period of 1 year. Participants with prior cardiovascular diseases and heart failure will be excluded. The purpose of the study is to compare the effects of sacubitril/valsartan (97/103 mg once or twice daily) on the temporal changes in fasting blood glucose, HbA1c, insulin resistance and blood pressure levels with telmisartan (40 mg once or twice daily) in individuals with stage 1-3 hypertension and newly diagnosed type 2 diabetes or prediabetes who have an HbA1c ≥6.0% and a systolic blood pressure ≥130 mmHg or a diastolic blood pressure ≥85 mmHg. The inclusion criteria include the age of 35-70 years, women who are not pregnant, estimated glomerular filtration rate ≥45 ml/min per 1.73m2 and B-type natriuretic peptide levels <400 pg/ml. RESULTS The sample size is estimated to be 502 participants for randomization according to an assumption of between-person standard deviation in systolic blood pressure of 15 mmHg or in HbA1c of 1.5%, which provides ≥80% power (at p =0.05) to detect a difference in systolic blood pressure of 4 mmHg or in HbA1c of 0.3% at the final follow-up. All participants will receive a comprehensive physical examination and tests for blood cell counts, blood biochemistry, urine analysis, 12-lead electrocardiography and an echocardiography every 3 months. CONCLUSION All analyses will be performed based on the intention-to-treat principle among all randomized participants.
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Affiliation(s)
- Ming-Tsung Sun
- Department of Medicine, Hualien Armed Forces General Hospital, Hualien, Taiwan
- Department of Medicine, Tri-Service General Hospital; National Defense Medical Center, Taipei, Taiwan
| | - Tsung-Jui Wu
- Department of Medicine, Hualien Armed Forces General Hospital, Hualien, Taiwan
- Department of Medicine, Tri-Service General Hospital; National Defense Medical Center, Taipei, Taiwan
| | - Yu-Kai Lin
- Department of Medicine, Hualien Armed Forces General Hospital, Hualien, Taiwan
- Department of Neurology, Tri-Service General Hospital; National Defense Medical Center, Taipei, Taiwan
| | - Yen-Po Lin
- Department of Critical Medicine, Taipei Tzu-Chi Hospital, New Taipei City, Taiwan
| | - Yun-Chen Chang
- Department of Nursing, National Taiwan University, Taipei, Taiwan
| | - Gen-Min Lin
- Department of Medicine, Hualien Armed Forces General Hospital, Hualien, Taiwan
- Department of Medicine, Tri-Service General Hospital; National Defense Medical Center, Taipei, Taiwan
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12
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Evaluating the effects of a standardized polyphenol mixture extracted from poplar-type propolis on healthy and diseased human gut microbiota. Biomed Pharmacother 2022; 148:112759. [PMID: 35248845 DOI: 10.1016/j.biopha.2022.112759] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 02/23/2022] [Accepted: 02/23/2022] [Indexed: 02/08/2023] Open
Abstract
INTRODUCTION A large body of evidence suggests that propolis exerts antioxidant, anti-inflammatory, and antimicrobial activities, mostly ascribed to its polyphenol content. Growing evidence suggests that propolis could modulate gut microbiota exerting a positive impact on several pathological conditions. The aim of this study was to determine the in vitro impact of a poplar-type propolis extract with a standardized polyphenol content, on the composition and functionality of gut microbiota obtained from fecal material of five different donors (healthy adults, and healthy, obese, celiac, and food allergic children). METHODS The standardized polyphenol mixture was submitted to a simulated in vitro digestion-fermentation process, designed to mimic natural digestion in the human oral, gastric, and intestinal chambers. The antioxidant profile of propolis before and after the digestion-fermentation process was determined. 16 S rRNA amplicon next-generation sequencing (NGS) was used to test the effects on the gut microbiota of propolis extract. The profile of the short-chain fatty acids (SCFA) produced by the microbiota was also investigated through a chromatographic method coupled with UV detection. RESULTS In vitro digestion and fermentation induced a decrease in the antioxidant profile of propolis (i.e., decrease of total polyphenol content, antiradical and reducing activities). Propolis fermentation exhibited a modulatory effect on gut microbiota composition and functionality of healthy and diseased subjects increasing the concentration of SCFA. CONCLUSIONS Overall, these data suggest that propolis might contribute to gut health and could be a candidate for further studies in view of its use as a prebiotic ingredient.
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Belce A, Ozkan BN, Dumlu FS, Sisman BH, Guler EM. Evaluation of Oxidative Stress and Inflammatory Biomarkers Pre and Post-Treatment in New Diagnosed Atherosclerotic Patients. Clin Exp Hypertens 2022; 44:320-325. [PMID: 35172655 DOI: 10.1080/10641963.2022.2036993] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Atherosclerosis is a chronic vascular inflammatory disease associated to oxidative stress and endothelial dysfunction. It is characterized by lipid accumulation in the arterial wall, increased hyperlipidemia, oxidative stress, lipid peroxidation, and protein oxidation. Our study included 45 patients ages of 40-60 and 45 healthy volunteers with similar demographic characteristics without any chronic disease as well. Fasting plasma glucose, BUN, creatinine, LDL-cholesterol, HDL-cholesterol, triglyceride, total cholesterol, HbA1c, and C-reactive protein (CRP) levels were measured using commercial kits by autoanalyzer. The oxidative stress biomarkers total oxidant status (TOS), total antioxidant status (TAS), total thiol (TT), native thiol (NT), catalase (CAT), paraoxonase (PON1), and arylesterase (ARES) enzyme activities were measured using photometric methods. The inflammatory biomarkers interleukin 1 beta (IL-1β), tumor necrosis factor-α (TNF-α), presepsin (PSPN), and raftlin (RFTN1) levels were measured with ELISA Kits. Oxidative stress index (OSI) and disulfide (DIS) were calculated. The clinical, biochemical biomarkers such as BUN, creatinine, HDL, LDL, total cholesterol, triglyceride, and CRP levels were found to be higher than the control group and lower post-treatment compared to the pre-treatment group (p <0.001). The oxidative stress parameters, TOS, OSI, and DIS levels were found to be higher than the control group, and the levels before the treatment were statistically significantly higher than after the treatment (p < 0.001). Antioxidant biomarkers TAS, TT, and NT levels were low in the patient group. Inflammatory biomarkers were highest before treatment and decreased with treatment. Oxidative stress and inflammation, which increased in atherosclerosis patients may guide disease prognosis and treatment strategies.
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Affiliation(s)
- Ahmet Belce
- Department of Medical Biochemistry, Biruni University, Faculty of Medicine, Zeytinburnu, Istanbul
| | - Beyza Nur Ozkan
- Department of Medical Biochemistry, University of Health Science Turkey, Hamidiye Faculty of Medicine, Uskudar, Istanbul
| | - Fatma Sena Dumlu
- Department of Medical Biochemistry, University of Health Science Turkey, Hamidiye Faculty of Medicine, Uskudar, Istanbul
| | - Behice Hande Sisman
- Department of Cardiology, Bezmialem Vakıf University, Faculty of Medicine, Fatih, Istanbul
| | - Eray Metin Guler
- Department of Medical Biochemistry, University of Health Sciences Turkey, Haydarpasa Numune Health Application and Research Center, Uskudar, Istanbul
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14
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Kaya ST, Agan K, Fulden-Agan A, Agyar-Yoldas P, Ozarslan TO, Kekecoglu M, Kaya A. Protective effect of propolis on myocardial ischemia/reperfusion injury in males and ovariectomized females but not in intact females. J Food Biochem 2022; 46:e14109. [PMID: 35142377 DOI: 10.1111/jfbc.14109] [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: 09/26/2021] [Revised: 12/12/2021] [Accepted: 01/22/2022] [Indexed: 11/30/2022]
Abstract
The aim of this study is to investigate the effect of propolis, which may have estrogenic effects, on myocardial ischemia/reperfusion (mI/R) injury not only in male rats but also in intact and ovariectomized (ovx) female rats. Six groups were formed: untreated males (n = 8), treated males (n = 9), untreated intact females (n = 9), treated intact females (n = 10), untreated ovx females (n = 10), and treated ovx females (n = 8). An alcoholic extract of a single dose of propolis (200 mg/kg) was administered orally daily for 14 days. Thirty minutes of ischemia and 120 min of reperfusion were performed. Blood pressure, heart rate, arrhythmias (ventricular premature contraction [VPC], ventricular tachycardia [VT], ventricular fibrillation [VF]), and myocardial infarct size were evaluated. Total antioxidant status (TAS), total oxidant status (TOS), superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx), and 17 beta-estradiol (E2) were measured. The untreated females showed more resistance to mI/R injury than the untreated males, as evidenced by lower duration, incidence, and score of arrhythmias, and smaller infarct size (p < .05). After ovx, this resistance disappeared. Propolis improved these values in treated males and treated ovx females (p < .05). Propolis increased TAS in treated males and decreased TOS in treated ovx females as well as elevated SOD in all treated groups (p < .05). Propolis decreased E2 level in treated intact females; however, it increased E2 level in treated ovx females (p < .05). The results revealed that propolis could protect the heart against mI/R injury in males and ovx females. PRACTICAL APPLICATIONS: It is known that the female heart has an increased sensitivity to myocardial ischemia/reperfusion (mI/R) injury due to estrogen deficiency and/or estrogen deprivation following menopause or surgical removal of the ovaries. Propolis has the potential to mimic estrogen under physiological and pathophysiological conditions, as well as its antioxidant property. The results indicated that propolis decreased myocardial infarct size, arrhythmia score, arrhythmia duration, and incidence in ovariectomized female rats and male rats. In addition, the present results demonstrated that an alcoholic extract of propolis as a natural product can effectively maintain the resistance of female heart to mI/R injury after estrogen deficiency.
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Affiliation(s)
- Salih Tunc Kaya
- Faculty of Arts and Science, Department of Biology, Duzce University, Duzce, Turkey
| | - Kagan Agan
- Coordination Unit of Healthy and Environmental, Duzce University, Duzce, Turkey
| | - Aydan Fulden-Agan
- Beekeeping Research, Development and Application Centre, Duzce University, Duzce, Turkey
| | - Pınar Agyar-Yoldas
- Coordination Unit of Healthy and Environmental, Duzce University, Duzce, Turkey
| | - Talat Ogulcan Ozarslan
- Faculty of Medicine, Department of Infectious Diseases and Clinical Microbiology, Bolu Abant Izzet Baysal University, Bolu, Turkey
| | - Meral Kekecoglu
- Faculty of Arts and Science, Department of Biology, Duzce University, Duzce, Turkey.,Beekeeping Research, Development and Application Centre, Duzce University, Duzce, Turkey
| | - Adnan Kaya
- Faculty of Medicine, Department of Internal Medicine, Cardiology Section, Duzce University, Duzce, Turkey
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Guo Y, Wu B, Chen Q, Min S. Parecoxib ameliorates renal toxicity and injury in sepsis-induced mouse model and LPS-induced HK-2 cells. Drug Dev Res 2021; 83:659-668. [PMID: 34813666 DOI: 10.1002/ddr.21897] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 10/13/2021] [Accepted: 10/23/2021] [Indexed: 12/29/2022]
Abstract
Parecoxib is a selective COX-2-specific inhibitor, which has been demonstrated to inhibit sepsis-induced systemic inflammation, but its role in sepsis-induced acute kidney injury has not been studied. This study was designed to investigate the effects of Parecoxib on sepsis-induced acute kidney injury. In this study, the mice sepsis model was established using an internationally recognized cecal ligation and puncture (CLP). Hematoxylin-eosin staining was performed to examine kidney injury. Biochemical kit was used to detect the expression of BUN and Cre in serum, and ELISA was used to detect the expression of inflammatory factors in renal tissue. Tunel staining was used to detect tissue apoptosis. Furthermore, CCK-8 assay was used to detect the cell viability of HK-2 cells and RT-qPCR was used to detect the expression of LPS-induced inflammatory factors in HK-2 cells.TUNEL staining was used to detect the level of cell apoptosis. Finally, the expressions of COX-2, p-NF-kB P65, p-IKKβ, NF-kB P65, IKKβ, Kim1, NGAL, iNOS, VEGF, VEGFR2, CD31 and apoptosis-related proteins in renal tissues and HK-2 cells were detected by Western blot. We discovered that parecoxib could alleviate renal pathological changes, reduce renal function injury, and inhibit renal pathology to inhibit the release of inflammatory factors in renal tissue. Parecoxib inhibited sepsis induced microvascular damage and apoptosis in renal tissue. Parecoxib reduced the inflammation and apoptosis of renal tubular epithelial cells induced by LPS. Our data suggest that Parecoxib ameliorates sepsis-induced kidney injury, and may have potential as a novel therapeutic method for treating sepsis-induced kidney injury.
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Affiliation(s)
- Yuanyuan Guo
- Department of Anesthesiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Bin Wu
- Department of Anesthesiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Qibin Chen
- Department of Anesthesiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Su Min
- Department of Anesthesiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
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Akdad M, Bouchra A, Eddouks M. Beneficial Effect of Saharan Propolis on Glucose Metabolism in Streptozotocin-induced Diabetic Rats. Cardiovasc Hematol Disord Drug Targets 2021; 21:243-252. [PMID: 34792007 DOI: 10.2174/1871529x21666211118141935] [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: 01/31/2021] [Revised: 07/28/2021] [Accepted: 08/10/2021] [Indexed: 11/22/2022]
Abstract
AIMS The aim of the study was to evaluate the antihyperglycemic activity of propolis from Saharan region of Morocco. BACKGROUND Propolis is known from ancient times for its beneficial action on health. OBJECTIVE The study aimed to evaluate the effect of Moroccan propolis aqueous extract from the desert region on glycemia and lipid metabolism. METHODS The antihyperglycemic and antidyslipidemic activities of Moroccan propolis aqueous extract were evaluated in streptozotocin-induced diabetic rats. Glycemia was monitored during acute (6h) and subchronic treatments. Histopathological analysis of the liver and the serum lipid profile was also evaluated in addition to the glucose tolerance. RESULTS This work demonstrated that the aqueous extract of Moroccan propolis exhibited a significant antihyperglycemic effect in diabetic rats. Histopathological data demonstrated that propolis acts positively on the liver of diabetic rats. In addition, the preliminary phytochemical screening revealed that Moroccan propolis contains several phytochemicals. Finally, Moroccan propolis had a potent antioxidant activity which may be due to the richness in polyphenols content (90.91 mg EAG/1 g of extract). CONCLUSION The present study shows that Moroccan propolis from the hot desert region possesses a potent antihyperglycemic effect.
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Affiliation(s)
- Mourad Akdad
- Team of Ethnopharmacology and Pharmacognosy. Faculty of Sciences and Techniques Errachidia, Moulay Ismail University of Meknes, BP 509, Boutalamine, Errachidia, 52000. Morocco
| | - Azzoui Bouchra
- Team of Ethnopharmacology and Pharmacognosy. Faculty of Sciences and Techniques Errachidia, Moulay Ismail University of Meknes, BP 509, Boutalamine, Errachidia, 52000. Morocco
| | - Mohamed Eddouks
- Team of Ethnopharmacology and Pharmacognosy. Faculty of Sciences and Techniques Errachidia, Moulay Ismail University of Meknes, BP 509, Boutalamine, Errachidia, 52000. Morocco
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Renoprotection Induced by Aerobic Training Is Dependent on Nitric Oxide Bioavailability in Obese Zucker Rats. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:3683796. [PMID: 34621463 PMCID: PMC8492245 DOI: 10.1155/2021/3683796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Accepted: 08/21/2021] [Indexed: 11/21/2022]
Abstract
Aerobic training (AT) promotes several health benefits that may attenuate the progression of obesity associated diabetes. Since AT is an important nitric oxide (NO−) inducer mediating kidney-healthy phenotype, the present study is aimed at investigating the effects of AT on metabolic parameters, morphological, redox balance, inflammatory profile, and vasoactive peptides in the kidney of obese-diabetic Zucker rats receiving L-NAME (N(omega)-nitro-L-arginine methyl ester). Forty male Zucker rats (6 wk old) were assigned into four groups (n = 10, each): sedentary lean rats (CTL-Lean), sedentary obese rats (CTL-Obese), AT trained obese rats without blocking nitric oxide synthase (NOS) (Obese+AT), and obese-trained with NOS block (Obese+AT+L-NAME). AT groups ran 60 min in the maximal lactate steady state (MLSS), five days/wk/8 wk. Obese+AT rats improved glycemic homeostasis, SBP, aerobic capacity, renal mitochondria integrity, redox balance, inflammatory profile (e.g., TNF-α, CRP, IL-10, IL-4, and IL-17a), and molecules related to renal NO− metabolism (klotho/FGF23 axis, vasoactive peptides, renal histology, and reduced proteinuria). However, none of these positive outcomes were observed in CTL-Obese and Obese+AT+L-NAME (p < 0.0001) groups. Although Obese+AT+L-NAME lowered BP (compared with CTL-Obese; p < 0.0001), renal damage was observed after AT intervention. Furthermore, AT training under conditions of low NO− concentration increased signaling pathways associated with ACE-2/ANG1-7/MASr. We conclude that AT represents an important nonpharmacological intervention to improve kidney function in obese Zucker rats. However, these renal and metabolic benefits promoted by AT are dependent on NO− bioavailability and its underlying regulatory mechanisms.
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