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El Mahdy RN, Nader MA, Helal MG, Abu-Risha SE, Abdelmageed ME. Tiron ameliorates acetic acid-induced colitis in rats: Role of TGF-β/EGFR/PI3K/NF-κB signaling pathway. Int Immunopharmacol 2024; 128:111587. [PMID: 38286073 DOI: 10.1016/j.intimp.2024.111587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2023] [Revised: 01/19/2024] [Accepted: 01/23/2024] [Indexed: 01/31/2024]
Abstract
BACKGROUND Ulcerative colitis (UC), an ongoing inflammatory disorder of the colon, is marked by persistent mucosal surface irritation extending from the rectum to the near-proximal colon. Tiron is a synthetic analogue of vitamin E which is known to have antioxidant and anti-inflammatory effects in various animal models, so the goal of this study was to find out whether Tiron had any preventive impacts on UC inflicted by acetic acid (A.A) exposure in rats. METHOD Tiron (235 and 470 mg/kg) was administered intra-peritoneally for 2 weeks, and A.A (2 ml, 3 % v/v) was injected intra-rectally to cause colitis. Colon tissues and blood samples were then collected for measurement of various inflammatory and oxidative stress biomarkers. RESULTS Tiron administration significantly diminished lactate dehydrogenase (LDH), C-reactive protein (CRP), colon weight, and the weight/length ratio of the colon as compared to A.A-injected rats. Additionally, Tiron attenuated oxidative stress biomarkers. Tiron also enforced the levels of Glucagon-like peptide-1 (GLP-1) and trefoil factor-3 (TFF-3), while it greatly lowered the expression of nuclear factor kappa B (NF-κB), interleukin-6 (IL-6), interferon-γ (IFN-γ), and transforming growth factor-1(TGF-β1), phosphorylated epidermal growth factor receptor (P-EGFR), phosphatidylinositol-3-kinase (PI3K) and protein kinase B (AKT) expression in colonic cellular structures. Furthermore, colonichistopathologic damages, revealed by hematoxylin and eosin (H&E) and Alcian Blue stain, were significantly decreased upon Tiron administration. CONCLUSION Tiron prevented A.A-induced colitis in rats via modulating inflammatory pathway TGF-β1/P-EGFR/PI3K/AKT/NF-κB, alongside managing the oxidant/antioxidant equilibrium, and boosting the reliability of the intestinal barrier.
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Affiliation(s)
- Raghda N El Mahdy
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
| | - Manar A Nader
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
| | - Manar G Helal
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
| | - Sally E Abu-Risha
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Tanta University, Tanta, Egypt
| | - Marwa E Abdelmageed
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt.
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Zhang C, Kuo JCT, Huang Y, Hu Y, Deng L, Yung BC, Zhao X, Zhang Z, Pan J, Ma Y, Lee RJ. Optimized Liposomal Delivery of Bortezomib for Advancing Treatment of Multiple Myeloma. Pharmaceutics 2023; 15:2674. [PMID: 38140015 PMCID: PMC10747406 DOI: 10.3390/pharmaceutics15122674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 11/15/2023] [Accepted: 11/23/2023] [Indexed: 12/24/2023] Open
Abstract
Bortezomib (BTZ), a boronic acid-derived proteasome inhibitor, is commonly employed in treating multiple myeloma (MM). However, the applications of BTZ are limited due to its poor stability and low bioavailability. Herein, we develop an optimized liposomal formulation of BTZ (L-BTZ) by employing a remote-loading strategy. This formulation uses Tiron, a divalent anionic catechol derivative, as the internal complexing agent. Compared to earlier BTZ-related formulations, this alternative formulation showed significantly greater stability due to the Tiron-BTZ complex's higher pH stability and negative charges, compared to the meglumine-BTZ complex. Significantly, the plasma AUC of L-BTZ was found to be 30 times greater than that of free BTZ, suggesting an extended blood circulation duration. In subsequent therapeutic evaluations using two murine xenograft tumor models of MM, the NCI-H929 and OPM2 models showed tumor growth inhibition (TGI) values of 37% and 57%, respectively. In contrast, free BTZ demonstrated TGI values of 17% and 11% in these models. Further, L-BTZ presented enhanced antitumor efficacy in the Hepa1-6 HCC syngeneic model, indicating its potential broader applicability as an antineoplastic agent. These findings suggest that the optimized L-BTZ formulation offers a significant advancement in BTZ delivery, holding substantial promise for clinical investigation in not merely MM, but other cancer types.
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Affiliation(s)
- Chi Zhang
- Division of Pharmaceutics and Pharmacology, College of Pharmacy, The Ohio State University, Columbus, OH 43210, USA; (C.Z.); (J.C.-T.K.); (Y.H.); (Z.Z.)
| | - Jimmy Chun-Tien Kuo
- Division of Pharmaceutics and Pharmacology, College of Pharmacy, The Ohio State University, Columbus, OH 43210, USA; (C.Z.); (J.C.-T.K.); (Y.H.); (Z.Z.)
| | - Yirui Huang
- Division of Pharmaceutics and Pharmacology, College of Pharmacy, The Ohio State University, Columbus, OH 43210, USA; (C.Z.); (J.C.-T.K.); (Y.H.); (Z.Z.)
| | - Yingwen Hu
- The Whiteoak Group, Inc., Rockville, MD 20855, USA; (Y.H.); (L.D.); (B.C.Y.); (X.Z.)
| | - Lan Deng
- The Whiteoak Group, Inc., Rockville, MD 20855, USA; (Y.H.); (L.D.); (B.C.Y.); (X.Z.)
| | - Bryant C. Yung
- The Whiteoak Group, Inc., Rockville, MD 20855, USA; (Y.H.); (L.D.); (B.C.Y.); (X.Z.)
| | - Xiaobin Zhao
- The Whiteoak Group, Inc., Rockville, MD 20855, USA; (Y.H.); (L.D.); (B.C.Y.); (X.Z.)
| | - Zhongkun Zhang
- Division of Pharmaceutics and Pharmacology, College of Pharmacy, The Ohio State University, Columbus, OH 43210, USA; (C.Z.); (J.C.-T.K.); (Y.H.); (Z.Z.)
| | - Junjie Pan
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, OH 43210, USA;
| | - Yifan Ma
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, OH 43210, USA;
| | - Robert J. Lee
- Division of Pharmaceutics and Pharmacology, College of Pharmacy, The Ohio State University, Columbus, OH 43210, USA; (C.Z.); (J.C.-T.K.); (Y.H.); (Z.Z.)
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Mohamed SA, El-Kashef DH, Nader MA. Tiron alleviates MPTP-induced Parkinsonism in mice via activation of Keap-1/Nrf2 pathway. J Biochem Mol Toxicol 2020; 35:e22685. [PMID: 33368846 DOI: 10.1002/jbt.22685] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Revised: 11/20/2020] [Accepted: 11/25/2020] [Indexed: 01/21/2023]
Abstract
Parkinsonism is a neurodegenerative disease that is common all over the world. This study aimed at exploring the neuroprotective effect of tiron against 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced Parkinsonism. MPTP (30 mg/kg, intraperitoneally [ip]) was injected in mice daily for 5 consecutive days. Mice were treated with tiron (140 and 280 mg/kg, ip) or levodopa (8.4 mg/kg, orally) for 10 consecutive days starting 5 days before MPTP injection. At the end of the experiment, behavioral tests were conducted to assess the neuroprotective effect of tiron. Moreover, oxidative stress was assessed via measuring antioxidant enzyme, such as catalase, and lipid peroxidation was evaluated as malondialdehyde. Neuronal damage was also detected by histopathological examination and via estimating hippocampal levels of dopamine, γ-aminobutyric acid, and nuclear factor erythroid-derived 2-like 2. In addition, the expression of Kelch-like ECH-associated protein 1 and heme oxygenase-1 was assessed by immunohistochemistry. Compared with the blank control group and the positive control group, the inhibitory effect of tiron on MPTP-induced neurodegenerative injury was statistically significant.
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Affiliation(s)
- Shrook A Mohamed
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
| | - Dalia H El-Kashef
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
| | - Manar A Nader
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
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Khaled S, Makled MN, Nader MA. Tiron protects against nicotine-induced lung and liver injury through antioxidant and anti-inflammatory actions in rats in vivo. Life Sci 2020; 260:118426. [PMID: 32937159 DOI: 10.1016/j.lfs.2020.118426] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Revised: 09/01/2020] [Accepted: 09/09/2020] [Indexed: 12/14/2022]
Abstract
AIMS Tobacco smoking is a major health problem associated with lung and liver damage. Lung and liver damage secondary to tobacco smoking is mediated through nicotine-induced oxidative stress. Therefore, we hypothesized that antioxidant treatment with tiron may improve nicotine-induced lung and liver damage. MATERIALS AND METHODS Rats were divided into six groups, a control, nicotine (10 mg/kg/day, i.p.; for 8 weeks) and tiron (100 or 200 mg/kg/day, i.p.; for 8 weeks) with or without nicotine administration. KEY FINDINGS Tiron improved survival rate and attenuated lung and liver damage as reflected by decreased total and differential cell counts, lactate dehydrogenase (LDH) activity in bronchoalveolar lavage fluid (BALF) and decreased alanine aminotransferase (ALT), aspartate aminotransferase (AST) and alkaline phosphatase (ALP) in serum; also histopathological examination confirmed the protective effect of tiron in lung and liver tissues of nicotine treated rats. Tiron attenuated dyslipidemia, which is associated with nicotine. These ameliorative effects of tiron may be mainly due to its antioxidant effect as proved by a significant decrease in malondialdehyde (MDA) content, reactive oxygen species (ROS) and total nitrite/nitrate (NOx) levels, and increase in reduced glutathione (GSH) level, catalase (CAT) and superoxide dismutase (SOD) activities. This is likely related to suppression of protein levels of NADPH oxidase enzyme (NOX1), inducible nitric oxide synthase (iNOS), nuclear factor kappa B (NF-κB) and tumor necrosis factor alpha (TNF-α); and up-regulation of protein levels of nuclear factor erythroid-2 (Nrf2). SIGNIFICANCE This makes tiron (synthetic analogue of vitamin E) good candidate for future use to minimize nicotine's hazards among smokers.
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Affiliation(s)
- Shimaa Khaled
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt; Department of Pharmacology and Toxicology, Faculty of Pharmacy, Horus University, Egypt.
| | - Mirhan N Makled
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
| | - Manar A Nader
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
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Liv L, Nakiboğlu N. Cost-effective voltammetric determination of boron in dried fruits and nuts using modified electrodes. Food Chem 2020; 311:126013. [PMID: 31855768 DOI: 10.1016/j.foodchem.2019.126013] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Revised: 12/02/2019] [Accepted: 12/02/2019] [Indexed: 10/25/2022]
Abstract
Cost effective, simple and accurate two voltammetric methods for determination of boron in hazelnut, peanut, almond, raisin, prune and date samples were described. Metal nanoparticles-carbon nanotube modified glassy carbon electrode (MNP/CNT/GCE, M = Au or Cu) and poly xylenol orange modified pencil graphite electrode (p-XO/PGE) were used as working electrodes. The oxidation of alizarin red s (ARS) in the boron-ARS complex at MNP/CNT/GCE and the oxidation of tiron in the B-tiron complex at p-XO/PGE were monitored as response. The limit of determination values (based on visual evaluation) for CuNP/CNT/GCE, AuNP/CNT/GCE and p-XO/PGE were calculated as 100 µg/L, 125 µg/L and 80 µg/L, respectively. The results were compared with the results obtained by inductively coupled plasma mass spectrometric method and no significant difference between the results was observed. The accuracy experiments of the methods and uncertainty calculations were also performed using a certified reference material (UME CRM 1202 Elements in Hazelnut).
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Affiliation(s)
- Lokman Liv
- Electrochemistry Laboratory, Chemistry Group, National Metrology Institute, (TUBITAK UME), Kocaeli, Turkey.
| | - Nuri Nakiboğlu
- Department of Chemistry, Faculty of Arts and Sciences, Balıkesir University, Balıkesir, Turkey.
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Feng S, Wu J, Yuan D, Huang Y, Lin K, Chen Y. Spectrophotometric flow injection determination of dissolved titanium in seawater exploiting in-line nitrilotriacetic acid resin preconcentration and a long path length liquid waveguide capillary cell. Anal Chim Acta 2019; 1053:54-61. [PMID: 30712569 DOI: 10.1016/j.aca.2018.11.034] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2018] [Revised: 11/14/2018] [Accepted: 11/15/2018] [Indexed: 11/23/2022]
Abstract
A sensitive spectrophotometric method for the determination of dissolved titanium (Ti) in seawater is developed. It involves in-line preconcentration and a long path length liquid waveguide capillary cell (LWCC). Nitrilotriacetic acid (NTA) resin is used to preconcentrate Ti from ∼25 mL seawater sample at pH 1.7, and elution is accomplished with 0.8 mol L-1 hydrochloride acid. The eluted Ti solution is buffered to pH 6.0 with 1.0 mol L-1 ammonium acetate and mixed with 1.5 mmol L-1 Tiron solution. The mixture is then injected into LWCC and measured by spectrophotometry at 420 nm. Before the preconcentration step, the sample is treated with 7 mmol L-1 ascorbic acid to reduce Fe(III) to Fe(II), in order to eliminate the Fe interference. The method is not interfered by Fe(III) and Cu(II) present in seawater samples at concentrations 50-fold higher in relation to Ti, and by Cd(II), Pb(II), Cr(VI), Mn(II), Al(III), Zn(II), and Ni(II) at concentrations 100-fold higher in relation to Ti. It is time efficient (7.5 minutes per sample), sensitive (0.10 nmol L-1 detection limit), precise (1.40% measurement RSD at 1.00 nmol L-1 Ti) and is characterized by a linear range of 0.50-5.00 nmol L-1 Ti. The method was applied to analysis of natural water samples collected from the Jiulongjiang Estuary, Fujian, China.
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Abdel-Magied N, Abdel-Aziz N, Shedid SM, Ahmed AG. Modulating effect of tiron on the capability of mitochondrial oxidative phosphorylation in the brain of rats exposed to radiation or manganese toxicity. Environ Sci Pollut Res Int 2019; 26:12550-12562. [PMID: 30848428 DOI: 10.1007/s11356-019-04594-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Accepted: 02/18/2019] [Indexed: 06/09/2023]
Abstract
The brain is an important organ rich in mitochondria and more susceptible to oxidative stress. Tiron (sodium 4,5-dihydroxybenzene-1,3-disulfonate) is a potent antioxidant. This study aims to evaluate the effect of tiron on the impairment of brain mitochondria induced by exposure to radiation or manganese (Mn) toxicity. We assessed the capability of oxidative phosphorylation (OXPHOS) through determination of mitochondrial redox state, the activity of electron transport chain (ETC), and Krebs cycle as well as the level of adenosine triphosphate (ATP) production. Rats were exposed to 7 Gy of γ-rays or injected i.p. with manganese chloride (100 mg/kg), then treated with tiron (471 mg/kg) for 7 days. The results showed that tiron treatment revealed positive modulation on the mitochondrial redox state manifested by a marked decrease of hydrogen peroxide (H2O2), malondialdehyde (MDA), and total nitrate/nitrite (NOx) associated with a significant increase in total antioxidant capacity (TAC), glutathione (GSH) content, manganese superoxide dismutase (MnSOD), and glutathione peroxidase (GPx) activities. Moreover, tiron can increase the activity of ETC through preventing the depletion in the activity of mitochondrial complexes (I, II, III, and IV), an elevation of coenzyme Q10 (CoQ10) and cytochrome c (Cyt-c) levels. Additionally, tiron showed a noticeable increase in mitochondrial aconitase (mt-aconitase) activity as the major component of Krebs cycle to maintain a high level of ATP production. Tiron also can restore mitochondrial metal homeostasis through positive changes in the levels of calcium (Ca), iron (Fe), Mn, and copper (Cu). It can be concluded that tiron may be used as a good mitigating agent to attenuate the harmful effects on the brain through the inhibition of mitochondrial injury post-exposure to radiation or Mn toxicity.
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Affiliation(s)
- Nadia Abdel-Magied
- Department of Radiation Biology, Atomic Energy Authority, National Center for Radiation Research and Technology (NCRRT), 3st Ahmed Elzomer, P.O. Box 29, Nasr City, Cairo, Egypt.
| | - Nahed Abdel-Aziz
- Department of Radiation Biology, Atomic Energy Authority, National Center for Radiation Research and Technology (NCRRT), 3st Ahmed Elzomer, P.O. Box 29, Nasr City, Cairo, Egypt
| | - Shereen M Shedid
- Department of Radiation Biology, Atomic Energy Authority, National Center for Radiation Research and Technology (NCRRT), 3st Ahmed Elzomer, P.O. Box 29, Nasr City, Cairo, Egypt
| | - Amal G Ahmed
- Department of Radiation Biology, Atomic Energy Authority, National Center for Radiation Research and Technology (NCRRT), 3st Ahmed Elzomer, P.O. Box 29, Nasr City, Cairo, Egypt
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Villamil-Ramos R, Gómez-Tagle P, Aguilar-Cordero JC, Yatsimirsky AK. Spectrophotometric, fluorimetric and electrochemical selective pyrophosphate/ATP sensing based on the dimethyltin(IV)- tiron system. Anal Chim Acta 2019; 1057:51-59. [PMID: 30832918 DOI: 10.1016/j.aca.2019.01.020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 12/22/2018] [Accepted: 01/08/2019] [Indexed: 12/25/2022]
Abstract
Sensing of pyrophosphate anion (PPi) in the presence of nucleotide triphosphates allows the real time monitoring of the polymerase chain reaction. To get a deeper understanding of the factors involved in PPi/nucleotide triphosphate discrimination, a detailed study on the performance of a dimethyltin (IV)-catecholate complex capable of both separate fluorimetric or electrochemical detection of PPi in the presence of adenosine triphosphate (ATP) has been undertaken. Dimethyltin (IV) tightly binds PPi or ATP, and forms a stable 1:1 complex with tiron (4,5-dihydroxy-1,3-benzenedisulfonic acid) in water. The complexation equilibria with all components are characterized quantitatively by potentiometric and spectroscopic titrations. Pyrophosphate anion can be detected owing to its ability to release free tiron from the complex by measuring either a fluorimetric or an electrochemical signal. On the contrary, ATP does not displace tiron but causes an interference with PPi in the fluorimetric detection method due to the formation of a ternary Me2Sn(IV)-tiron-ATP complex with optical properties intermediate between those of free and bound tiron. In the electrochemical (square wave voltammetry) method, the ternary ATP complex shows a separate peak which does not coincide with the peaks of neither free nor bound tiron, thus making possible the simultaneous detection of ATP in addition to PPi.
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Affiliation(s)
- Raúl Villamil-Ramos
- Centro de Investigaciones Químicas, IICBA, Universidad Autónoma Del Estado de Morelos, Av. Universidad 1001, Col. Chamilpa, 62209, Cuernavaca, Morelos, Mexico
| | - Paola Gómez-Tagle
- Facultad de Química, Universidad Nacional Autónoma de México, 04510, México, D.F, Mexico
| | | | - Anatoly K Yatsimirsky
- Facultad de Química, Universidad Nacional Autónoma de México, 04510, México, D.F, Mexico.
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Pal A, Dey TK, Debnath AK, Bhushan B, Sahu AK, Bindal RC, Kar S. Mixed-matrix membranes with enhanced antifouling activity: probing the surface-tailoring potential of Tiron and chromotropic acid for nano-TiO 2. R Soc Open Sci 2017; 4:170368. [PMID: 28989744 PMCID: PMC5627084 DOI: 10.1098/rsos.170368] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Accepted: 08/07/2017] [Indexed: 06/07/2023]
Abstract
Mixed-matrix membranes (MMMs) were developed by impregnating organofunctionalized nanoadditives within fouling-susceptible polysulfone matrix following the non-solvent induced phase separation (NIPS) method. The facile functionalization of nanoparticles of anatase TiO2 (nano-TiO2) by using two different organoligands, viz. Tiron and chromotropic acid, was carried out to obtain organofunctionalized nanoadditives, FT-nano-TiO2 and FC-nano-TiO2, respectively. The structural features of nanoadditives were evaluated by X-ray diffraction, X-ray photoelectron spectroscopy, Raman and Fourier transform infrared spectroscopy, which established that Tiron leads to the blending of chelating and bridging bidentate geometries for FT-nano-TiO2, whereas chromotropic acid produces bridging bidentate as well as monodentate geometries for FC-nano-TiO2. The surface chemistry of the studied membranes, polysulfone (Psf): FT-nano-TiO2 UF and Psf: FC-nano-TiO2 UF, was profoundly influenced by the benign distributions of the nanoadditives enriched with distinctly charged sites ([Formula: see text]), as evidenced by superior morphology, improved topography, enhanced surface hydrophilicity and altered electrokinetic features. The membranes exhibited enhanced solvent throughputs, viz. 3500-4000 and 3400-4300 LMD at 1 bar of transmembrane pressure, without significant compromise in their rejection attributes. The flux recovery ratios and fouling resistive behaviours of MMMs towards bovine serum albumin indicated that the nanoadditives could impart stable and appreciable antifouling activity, potentially aiding in a sustainable ultrafiltration performance.
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Affiliation(s)
- Avishek Pal
- Membrane Development Section, Chemical Engineering Group, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
- Homi Bhabha National Institute, Anushakti Nagar, Trombay, Mumbai 400094, India
| | - T. K. Dey
- Membrane Development Section, Chemical Engineering Group, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
| | - A. K. Debnath
- Technical Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
- Homi Bhabha National Institute, Anushakti Nagar, Trombay, Mumbai 400094, India
| | - Bharat Bhushan
- Membrane Development Section, Chemical Engineering Group, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
- Homi Bhabha National Institute, Anushakti Nagar, Trombay, Mumbai 400094, India
| | - A. K. Sahu
- Glass and Advanced Materials Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
| | - R. C. Bindal
- Membrane Development Section, Chemical Engineering Group, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
- Homi Bhabha National Institute, Anushakti Nagar, Trombay, Mumbai 400094, India
| | - Soumitra Kar
- Membrane Development Section, Chemical Engineering Group, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
- Homi Bhabha National Institute, Anushakti Nagar, Trombay, Mumbai 400094, India
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Morgan A, Galal MK, Ogaly HA, Ibrahim MA, Abd-Elsalam RM, Noshy P. Tiron ameliorates oxidative stress and inflammation in titanium dioxide nanoparticles induced nephrotoxicity of male rats. Biomed Pharmacother 2017; 93:779-787. [PMID: 28709131 DOI: 10.1016/j.biopha.2017.07.006] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Revised: 06/17/2017] [Accepted: 07/03/2017] [Indexed: 12/11/2022] Open
Abstract
Although the widespread use of titanium dioxide nanoparticles (TiO2 NPs), few studies were conducted on its hazard influence on human health. Tiron a synthetic vitamin E analog was proven to be a mitochondrial targeting antioxidant. The current investigation was performed to assess the efficacy of tiron against TiO2 NPs induced nephrotoxicity. Eighty adult male rats divided into four different groups were used: group I was the control, group II received TiO2 NPs (100mg\Kg BW), group III received TiO2 NPs plus tiron (470mg\kg BW), and group IV received tiron alone. Urea, creatinine and total protein concentrations were measured in serum to assess the renal function. Antioxidant status was estimated by determining the activities of glutathione peroxidase, superoxide dismutase, malondialdehyde (MDA) level and glutathione concentration in renal tissue. As well as Renal fibrosis was evaluated though measuring of transforming growth factor-β1 (TGFβ1) and matrix metalloproteinase 9 (MMP9) expression levels and histopathological examination. TiO2 NPs treated rats showed marked elevation of renal indices, depletion of renal antioxidant enzymes with marked increase in MDA concentration as well as significant up-regulation in fibrotic biomarkers TGFβ1 and MMP9. Oral administration of tiron to TiO2 NPs treated rats significantly attenuate the renal dysfunction through decreasing of renal indices, increasing of antioxidant enzymes activities, down-regulate the expression of fibrotic genes and improving the histopathological picture for renal tissue. In conclusion, tiron was proved to attenuate the nephrotoxicity induced by TiO2 NPs through its radical scavenging and metal chelating potency.
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Affiliation(s)
- Ashraf Morgan
- Department of Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt.
| | - Mona K Galal
- Department of Biochemistry and Chemistry of Nutrition, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt.
| | - Hanan A Ogaly
- Department of Biochemistry and Chemistry of Nutrition, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt.
| | - Marwa A Ibrahim
- Department of Biochemistry and Chemistry of Nutrition, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt.
| | - Reham M Abd-Elsalam
- Department of Pathology, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt.
| | - Peter Noshy
- Department of Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt.
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Morgan AM, Ibrahim MA, Noshy PA. Reproductive toxicity provoked by titanium dioxide nanoparticles and the ameliorative role of Tiron in adult male rats. Biochem Biophys Res Commun 2017; 486:595-600. [PMID: 28336439 DOI: 10.1016/j.bbrc.2017.03.098] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Accepted: 03/19/2017] [Indexed: 01/13/2023]
Abstract
Titanium dioxide nanoparticles (TDN) are widely used in paints, plastics, ceramics, cosmetics, printing ink, rubber and paper. Tiron is a water soluble metal chelator and antioxidant. This study was designed to investigate the reproductive toxicity of TDN in male albino rats and the ameliorative role of Tiron to minimize such toxic effects. Eighty adult male albino rats were assigned into 4 equal groups, group 1: control; group 2: received TDN at 100 mg/kg/day orally for 8 weeks; group 3: received Tiron at 470 mg/kg/day intraperitoneally for 2 weeks (the last 2 weeks of the experimental period); group 4: received both TDN and Tiron by the same previously mentioned dose, route and duration. The results revealed that TDN provoked reproductive toxicity which was proved by the deteriorated spermogram picture, high incidence of micronucleated RBCs, elevated oxidative stress parameters and up regulation of Testin gene. Whereas, Tiron co-treatment ameliorated most of these toxic alterations. Our findings highlighted the protective role of tiron against TDN intoxication.
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Affiliation(s)
- Ashraf M Morgan
- Toxicology and Forensic Medicine Department, Faculty of Veterinary Medicine, Cairo University, Egypt
| | - Marwa A Ibrahim
- Biochemistry Department, Faculty of Veterinary Medicine, Cairo University, Egypt.
| | - Peter A Noshy
- Toxicology and Forensic Medicine Department, Faculty of Veterinary Medicine, Cairo University, Egypt
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12
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El-Sherbeeny NA, Hassan ZA, Ateyya H. Tiron ameliorates oxidative stress and inflammation in a murine model of airway remodeling. Int Immunopharmacol. 2016;39:172-180. [PMID: 27485290 DOI: 10.1016/j.intimp.2016.07.025] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2015] [Revised: 07/13/2016] [Accepted: 07/25/2016] [Indexed: 01/01/2023]
Abstract
Airway remodeling includes lung structural changes that have a role in the irreversibility of pulmonary dysfunction shown in chronic bronchial asthmatics. The current experiment investigated the effect of the mitochondrial antioxidant, tiron in comparison with dexamethasone (DEXA) on airway remodeling in chronic asthma. Sensitized BALB/c mice were challenged with ovalbumin (OVA) aerosol for 8weeks, OVA sensitized-challenged mice were treated with either DEXA or tiron, respectively. After that, lung tissue and bronchoaveolar lavage fluid (BALF) were used for measurement of different biological markers. Lungs were examined for histopathological changes and immunohistochemistry. Upon comparing with vehicle treated animals, trion or DEXA treatment significantly reduced eosinophils, lymphocytes, neutrophils and macrophages count in the BALF. Both drugs significantly alleviated chronic OVA-induced oxidative stress as illustrated by decreased pulmonary malondialdenhyde (MDA) and increased glutathione (GSH) and superoxide dismutase (SOD) levels. Asthmatic mice exhibited elevated levels of NOx, IL-13 and TGF-β1 that were reduced by DEXA and tiron. Histopathological changes and increased immunoreactivity of nuclear factor-Kappa B (NF-κ B) in OVA-challenged mice were minimized by tiron and DEXA treatment. In conclusion, in this model of chronic asthma DEXA and tiron ameliorated airway remodeling and inflammation in experimental chronic asthma with no difference between the effect of tiron and DEXA. Tiron has a potential role as adjuvant treatment in chronic asthma.
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Ateyya H, Wagih HM, El-Sherbeeny NA. Effect of tiron on remote organ injury in rats with severe acute pancreatitis induced by L-arginine. Naunyn Schmiedebergs Arch Pharmacol 2016; 389:873-85. [PMID: 27118662 DOI: 10.1007/s00210-016-1250-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Accepted: 04/19/2016] [Indexed: 12/11/2022]
Abstract
Acute pancreatitis (AP) is an acute inflammatory disorder of the pancreas that can be complicated by involvement of other remote organs. Oxidative stress is known to have a crucial role in the development of pancreatic acinar damage and one of the main causes in multisystem organ failure in experimental AP. The aim of the study was to determine the effect of tiron on pancreas and remote organ damage in L-arginine (L-Arg) induced AP rat model. Thirty-two male rats were divided in random into four groups: control, tiron, L-Arg, and tiron with L-Arg. At the end of the experiment, blood samples were withdrawn for biochemical analysis. The pancreas, lung, kidney, and liver were collected for histopathological examination. Estimation of pancreatic water content was done. Analysis of pulmonary, hepatic, renal, and pancreatic lipid peroxide levels (MDA), superoxide dismutase (SOD), and reduced glutathione (GSH) were carried out. Finally, nuclear factor kappa B (NF-κB) and transforming growth factor β1 (TGF-β1) expression in pancreatic tissue was determined. Results indicated that treatment with tiron significantly decreased lipid peroxide levels and markedly increased both SOD activity and GSH level. Moreover, histopathological analysis further confirmed that administration of tiron relatively ameliorates pancreatic acinar cells and remote organ damage. Increased immunoreactivity of NF-κB and TGF-β1 were reduced also by tiron treatment. These findings pointed out the protective role of the mitochondrial antioxidant, tiron against AP induced by L-Arg.
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Affiliation(s)
- Hayam Ateyya
- College of Pharmacy, Taibah University, El-Madinah, El-Munawarah, Saudi Arabia. .,Department of Clinical Pharmacology, Faculty of Medicine, Cairo University, Giza, Egypt.
| | - Heba M Wagih
- Medical Laboratories Technology Department, Faculty of Applied Medical Sciences, Taibah University, El-Madinah El-Munawarah, Saudi Arabia.,Pathology Department, Faculty of Medicine, Suez Canal University, Ismailia, Egypt
| | - Nagla A El-Sherbeeny
- College of Pharmacy, Taibah University, El-Madinah, El-Munawarah, Saudi Arabia.,Department of Clinical Pharmacology, Faculty of Medicine, Suez Canal University, Ismailia, Egypt
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Oyanagi E, Uchida M, Miyakawa T, Miyachi M, Yamaguchi H, Nagami K, Utsumi K, Yano H. Palmitoleic acid induces the cardiac mitochondrial membrane permeability transition despite the presence of L-carnitine. Biochem Biophys Res Commun 2015; 463:29-36. [PMID: 25983324 DOI: 10.1016/j.bbrc.2015.05.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2015] [Accepted: 05/06/2015] [Indexed: 11/26/2022]
Abstract
Although palmitoleic acid (C16:1) is associated with arrhythmias, and increases in an age-dependent matter, the effects of L-carnitine, which is essential for the transport of long-chain fatty acids into the mitochondria, are unclear. It has been postulated that L-carnitine may attenuate palmitate (C16:0)-induced mitochondrial dysfunction and the apoptosis of cardiomyocytes. The aim of this study was to elucidate the activity of L-carnitine in the prevention of the palmitoleic acid-induced mitochondrial membrane permeability transition and cytochrome c release using isolated cardiac mitochondria from rats. Palmitoleoyl-CoA-induced mitochondrial respiration was not accelerated by L-carnitine treatment, and this respiration was slightly inhibited by oligomycin, which is an inhibitor of ATP synthase. Despite pretreatment with L-carnitine, the mitochondrial membrane potential decreased and mitochondrial swelling was induced by palmitoleoyl-CoA. In the presence of a combination of L-carnitine and tiron, a free radical scavenger, there was attenuated mitochondrial swelling and cytochrome c release following palmitoleoyl-CoA treatment. We concluded that palmitoleic acid, but not palmitate, induces the cardiac mitochondrial membrane permeability transition despite the presence of L-carnitine.
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Affiliation(s)
- Eri Oyanagi
- Department of Health Promotion and Exercise, National Institute of Health and Nutrition, Tokyo, Japan; Research Institute of Health and Welfare, Kibi International University, Takahashi, Japan
| | - Masataka Uchida
- Department of Health & Sports Science, Kawasaki University of Medical Welfare, Kurashiki, Japan
| | - Takeshi Miyakawa
- Department of Health & Sports Science, Kawasaki University of Medical Welfare, Kurashiki, Japan
| | - Motohiko Miyachi
- Department of Health Promotion and Exercise, National Institute of Health and Nutrition, Tokyo, Japan
| | - Hidetaka Yamaguchi
- Research Institute of Health and Welfare, Kibi International University, Takahashi, Japan
| | - Kuniatsu Nagami
- Research Institute of Health and Welfare, Kibi International University, Takahashi, Japan
| | - Kozo Utsumi
- Department of Cytology & Histology, Okayama University Graduate School, Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Hiromi Yano
- Department of Health & Sports Science, Kawasaki University of Medical Welfare, Kurashiki, Japan.
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Gallego-Villar L, Pérez B, Ugarte M, Desviat LR, Richard E. Antioxidants successfully reduce ROS production in propionic acidemia fibroblasts. Biochem Biophys Res Commun 2014; 452:457-61. [PMID: 25159844 DOI: 10.1016/j.bbrc.2014.08.091] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2014] [Accepted: 08/19/2014] [Indexed: 12/27/2022]
Abstract
Propionic acidemia (PA), caused by a deficiency of the mitochondrial biotin dependent enzyme propionyl-CoA carboxylase (PCC) is one of the most frequent organic acidurias in humans. Most PA patients present in the neonatal period with metabolic acidosis and hyperammonemia, developing different neurological symptoms, movement disorders and cardiac complications. There is strong evidence indicating that oxidative damage could be a pathogenic factor in neurodegenerative, mitochondrial and metabolic diseases. Recently, we identified an increase in ROS levels in PA patients-derived fibroblasts. Here, we analyze the capability of seven antioxidants to scavenge ROS production in PA patients' cells. Tiron, trolox, resveratrol and MitoQ significantly reduced ROS content in patients and controls' fibroblasts. In addition, changes in the expression of two antioxidant enzymes, superoxide dismutase and glutathione peroxidase, were observed in PA patients-derived fibroblasts after tiron and resveratrol treatment. Our results in PA cellular models establish the proof of concept of the potential of antioxidants as an adjuvant therapy for PA and pave the way for future assessment of antioxidant strategies in the murine model of PA.
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Affiliation(s)
- Lorena Gallego-Villar
- Centro de Biología Molecular "Severo Ochoa", UAM-CSIC, Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), IdiPAZ, Madrid, Spain
| | - Belén Pérez
- Centro de Biología Molecular "Severo Ochoa", UAM-CSIC, Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), IdiPAZ, Madrid, Spain
| | - Magdalena Ugarte
- Centro de Biología Molecular "Severo Ochoa", UAM-CSIC, Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), IdiPAZ, Madrid, Spain
| | - Lourdes R Desviat
- Centro de Biología Molecular "Severo Ochoa", UAM-CSIC, Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), IdiPAZ, Madrid, Spain
| | - Eva Richard
- Centro de Biología Molecular "Severo Ochoa", UAM-CSIC, Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), IdiPAZ, Madrid, Spain.
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16
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Shrivastava S, Joshi D, Bhadauria M, Shukla S, Mathur R. Cotherapy of Tiron and selenium against vanadium induced toxic effects in lactating rats. Iran J Reprod Med 2011; 9:229-38. [PMID: 26396569 PMCID: PMC4575759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/17/2010] [Accepted: 01/05/2011] [Indexed: 12/04/2022]
Abstract
BACKGROUND Vanadium is an important environmental and industrial pollutant. It has a status of reproductive toxicant and is reported to cross placental barrier. OBJECTIVE The current study was performed to assess the therapeutic efficacy of Tiron and its combination with selenium against vanadium induced toxicity in lactating and suckling rats. MATERIALS AND METHODS Rats were exposed to vanadium at a dose of 7.5 mg/kg/day (p.o.) for 20 days from 0 day of post partom (p.p.). Tiron (606 mg/kg/day, i.p.) and selenium (0.5 mg/kg/day, p.o.) were administered for 5 days on 21-25 day PP. RESULTS Vanadium exposure decreased blood sugar level while serum transaminases and serum alkaline phosphatase showed increased values significantly (p<0.01). Elevation in glycogen content of liver and kidney of suckling and kidney of lactating rats was found after toxicant administration. Toxicant intoxication increased the enzymatic activity of acid phosphatase in liver of suckling and lactating and kidney of suckling rats. On the contrary alkaline phosphatase and adenosine triphosphatase activities were inhibited significantly (p<0.01) in all the organs. Lipid peroxidation was enhanced whereas glutathione was reduced significantly in liver of suckling and lactating rats (p<0.01). Vanadium also caused histopathological lesions. Therapies of Tiron per se and Tiron along with selenium maintained almost all blood and tissue biochemical parameters towards normal. Tiron along with selenium reduced vanadium induced lesions in lactating and sucklings rats. CONCLUSION Tiron along with selenium is more effective than Tiron alone against vanadium induced toxic effect on lactating and suckling rats.
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Affiliation(s)
- Sadhana Shrivastava
- UNESCO Satellite Center of Trace Element Research and Reproductive Biology and Toxicology Laboratory, School of Studies in Zoology, Jiwaji University, Gwalior (MP), 474 011, India
| | - Deepmala Joshi
- UNESCO Satellite Center of Trace Element Research and Reproductive Biology and Toxicology Laboratory, School of Studies in Zoology, Jiwaji University, Gwalior (MP), 474 011, India
| | - Monika Bhadauria
- UNESCO Satellite Center of Trace Element Research and Reproductive Biology and Toxicology Laboratory, School of Studies in Zoology, Jiwaji University, Gwalior (MP), 474 011, India
| | - Sangeeta Shukla
- UNESCO Satellite Center of Trace Element Research and Reproductive Biology and Toxicology Laboratory, School of Studies in Zoology, Jiwaji University, Gwalior (MP), 474 011, India
| | - Ramesh Mathur
- UNESCO Satellite Center of Trace Element Research and Reproductive Biology and Toxicology Laboratory, School of Studies in Zoology, Jiwaji University, Gwalior (MP), 474 011, India
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Shi C, Zhitomirsky I. Electrodeposition and capacitive behavior of films for electrodes of electrochemical supercapacitors. Nanoscale Res Lett 2010; 5:518-523. [PMID: 20672082 PMCID: PMC2894232 DOI: 10.1007/s11671-009-9519-z] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/14/2009] [Accepted: 12/17/2009] [Indexed: 05/29/2023]
Abstract
Polypyrrole films were deposited by anodic electropolymerization on stainless steel substrates from aqueous pyrrole solutions containing sodium salicylate and tiron additives. The deposition yield was studied under galvanostatic conditions. The amount of the deposited material was varied by the variation of deposition time at a constant current density. SEM studies showed the formation of porous films with thicknesses in the range of 0-3 μm. Cyclic voltammetry data for the films tested in 0.5 M Na2SO4 solutions showed capacitive behavior and high specific capacitance (SC) in a voltage window of 0.9 V. The films prepared from pyrrole solutions containing tiron showed better capacitive behavior compared to the films prepared from the solutions containing sodium salicylate. A highest SC of 254 F g-1 was observed for the sample with a specific mass of 89 μg cm-2 at a scan rate of 2 mV s-1. The SC decreased with an increasing film thickness and scan rate. The results indicated that the polypyrrole films deposited on the stainless steel substrates by anodic electropolymerization can be used as electrodes for electrochemical supercapacitors (ES).
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Affiliation(s)
- C Shi
- Department of Materials Science and Engineering, McMaster University, 1280 Main Street West, Hamilton, ON, L8S 4L7, Canada.
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Akita M, Ohta Y. The effect of Tiron, a water soluble radical scavenger, on growth, morphology and alkaloid content of adventitious roots in Atropa belladonna. Plant Cell Rep 2000; 19:705-709. [PMID: 30754809 DOI: 10.1007/s002999900173] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The effect of Tiron (disodium 1,2-dihydroxybenzene-3,5-disulfonate) on the growth, morphology and alkaloid content of adventitious roots in Atropa belladonna was investigated. High concentrations of Tiron had an inhibitory effect on growth of the root. The appearance of cultured roots was significantly changed from rough roots accompanied with callus-like tissue in control cultures to fine roots without callus formation. Alkaloid content was drastically increased by the addition of 1 mM Tiron to the medium. The influence of NAA, which has an inhibitory effect on alkaloid production, was partially restored by Tiron treatment, indicating that this radical scavenger may affect the production of alkaloids through modulation of the mode of action of auxin. Glutathione content of the root was not influenced by Tiron.
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Affiliation(s)
- M Akita
- Department of Biotechnological Science, Kinki University, 930 Nishimitani, Uchita, Naga, Wakayama, 649-6493, Japan e-mail: Fax: +81-736-77-4754, , , , , , JP
| | - Y Ohta
- Department of Biotechnological Science, Kinki University, 930 Nishimitani, Uchita, Naga, Wakayama, 649-6493, Japan e-mail: Fax: +81-736-77-4754, , , , , , JP
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