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Espíndola KMM, Varela ELP, de Albuquerque RDFV, Figueiredo RA, dos Santos SM, Malcher NS, da S. Seabra PS, Fonseca ADN, de Azevedo Sousa KM, de Oliveira SBB, Carneiro ADS, Coleman MD, Monteiro MC. Alpha-Lipoic Acid and Its Enantiomers Prevent Methemoglobin Formation and DNA Damage Induced by Dapsone Hydroxylamine: Molecular Mechanism and Antioxidant Action. Int J Mol Sci 2022; 24:ijms24010057. [PMID: 36613503 PMCID: PMC9820452 DOI: 10.3390/ijms24010057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 10/14/2022] [Accepted: 10/23/2022] [Indexed: 12/24/2022] Open
Abstract
Dapsone (DDS) therapy can frequently lead to hematological side effects, such as methemoglobinemia and DNA damage. In this study, we aim to evaluate the protective effect of racemic alpha lipoic acid (ALA) and its enantiomers on methemoglobin induction. The pre- and post-treatment of erythrocytes with ALA, ALA isomers, or MB (methylene blue), and treatment with DDS-NOH (apsone hydroxylamine) was performed to assess the protective and inhibiting effect on methemoglobin (MetHb) formation. Methemoglobin percentage and DNA damage caused by dapsone and its metabolites were also determined by the comet assay. We also evaluated oxidative parameters such as SOD, GSH, TEAC (Trolox equivalent antioxidant capacity) and MDA (malondialdehyde). In pretreatment, ALA showed the best protector effect in 2.5 µg/mL of DDS-NOH. ALA (1000 µM) was able to inhibit the induced MetHb formation even at the highest concentrations of DDS-NOH. All ALA tested concentrations (100 and 1000 µM) were able to inhibit ROS and CAT activity, and induced increases in GSH production. ALA also showed an effect on DNA damage induced by DDS-NOH (2.5 µg/mL). Both isomers were able to inhibit MetHb formation and the S-ALA was able to elevate GSH levels by stimulating the production of this antioxidant. In post-treatment with the R-ALA, this enantiomer inhibited MetHb formation and increased GSH levels. The pretreatment with R-ALA or S-ALA prevented the increase in SOD and decrease in TEAC, while R-ALA decreased the levels of MDA; and this pretreatment with R-ALA or S-ALA showed the effect of ALA enantiomers on DNA damage. These data show that ALA can be used in future therapies in patients who use dapsone chronically, including leprosy patients.
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Affiliation(s)
- Kaio Murilo Monteiro Espíndola
- Postgraduate Program in Pharmacology and Biochemistry, Faculty of Pharmacy, Federal University of Pará/UFPA, Belém 66075-110, PA, Brazil
| | - Everton Luiz Pompeu Varela
- Postgraduate Program in Pharmaceutical Sciences, Faculty of Pharmacy, Federal University of Pará/UFPA, Belém 66075-110, PA, Brazil
| | | | - Rosiane Araújo Figueiredo
- Postgraduate Program in Pharmacology and Biochemistry, Faculty of Pharmacy, Federal University of Pará/UFPA, Belém 66075-110, PA, Brazil
| | - Sávio Monteiro dos Santos
- Postgraduate Program in Pharmaceutical Sciences, Faculty of Pharmacy, Federal University of Pará/UFPA, Belém 66075-110, PA, Brazil
| | - Nívea Silva Malcher
- Laboratory Immunology, Microbiology and In Vitro Assays (LABEIM), Faculty of Pharmacy, Federal University of Pará/UFPA, Belém 66075-110, PA, Brazil
| | - Pamela Suelen da S. Seabra
- Laboratory Immunology, Microbiology and In Vitro Assays (LABEIM), Faculty of Pharmacy, Federal University of Pará/UFPA, Belém 66075-110, PA, Brazil
| | - Andréia do Nascimento Fonseca
- Laboratory Immunology, Microbiology and In Vitro Assays (LABEIM), Faculty of Pharmacy, Federal University of Pará/UFPA, Belém 66075-110, PA, Brazil
| | - Karla Marcely de Azevedo Sousa
- Laboratory Immunology, Microbiology and In Vitro Assays (LABEIM), Faculty of Pharmacy, Federal University of Pará/UFPA, Belém 66075-110, PA, Brazil
| | - Susan Beatriz Batista de Oliveira
- Central Laboratory of the State of Pará-CLSP, Belém 66823-010, PA, Brazil
- Postgraduate Program in Neuroscience and Cell Biology, Faculty of Pharmacy, Federal University of Pará/UFPA, Belém 66075-110, PA, Brazil
| | - Agnaldo da Silva Carneiro
- Postgraduate Program in Medicinal Chemistry and Molecular Modeling, Faculty of Pharmacy, Federal University of Pará/UFPA, Belém 66075-110, PA, Brazil
| | - Michael D. Coleman
- College of Health and Life Sciences, Aston University, Aston Triangle, Birmingham B4 7ET, UK
| | - Marta Chagas Monteiro
- Postgraduate Program in Pharmacology and Biochemistry, Faculty of Pharmacy, Federal University of Pará/UFPA, Belém 66075-110, PA, Brazil
- Postgraduate Program in Pharmaceutical Sciences, Faculty of Pharmacy, Federal University of Pará/UFPA, Belém 66075-110, PA, Brazil
- Laboratory Immunology, Microbiology and In Vitro Assays (LABEIM), Faculty of Pharmacy, Federal University of Pará/UFPA, Belém 66075-110, PA, Brazil
- Correspondence:
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El-Mancy EM, Elsherbini DMA, Al-Serwi RH, El-Sherbiny M, Ahmed Shaker G, Abdel-Moneim AMH, Enan ET, Elsherbiny NM. α-Lipoic Acid Protects against Cyclosporine A-Induced Hepatic Toxicity in Rats: Effect on Oxidative Stress, Inflammation, and Apoptosis. TOXICS 2022; 10:toxics10080442. [PMID: 36006121 PMCID: PMC9416703 DOI: 10.3390/toxics10080442] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 07/28/2022] [Accepted: 07/29/2022] [Indexed: 02/01/2023]
Abstract
The clinical application of cyclosporine A (CsA) as an immunosuppressive agent is limited by its organ toxicity. We aimed to evaluate the effectiveness of α-lipoic acid against CsA-induced hepatotoxicity and to delineate the underlying molecular mechanisms. Male Wistar rats (n = 24, 8 per each group) received the vehicle, CsA (25 mg/kg) and/or ALA (100 mg/kg, p.o.) for 3 weeks. Biochemical markers of liver function (serum ALT, AST, ALP < GGT), oxidative stress (MDA, TAC, SOD, GSH, Nrf2/HO-1), inflammation (NF-κB, CD68, iNOS, NO, COX-2), and apoptosis (caspase-3) were assessed in serum and tissue. Liver histological analysis using H&E and Sirius red was performed. The development of liver injury in CsA-treated animals was indicated by elevated levels of liver enzymes, oxidants/antioxidants imbalance, inflammatory cells infiltration, up-regulated expression of inflammatory mediators, and apoptosis. These changes were associated with altered architecture of hepatic cells and fibrous connective tissue. ALA co-administration protected against CsA-induced liver damage and ameliorated biochemical changes and cellular injury. In conclusion, ALA demonstrated hepatoprotective potential against CsA-induced liver injury through combating oxidative stress, inflammation, and apoptosis, highlighting ALA as a valuable adjunct to CsA therapy.
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Affiliation(s)
- Eman M. El-Mancy
- Deanship of Common First Year, Jouf University, P.O. Box 2014, Sakaka 42421, Saudi Arabia;
- Zoology Department, Faculty of Women for Arts, Science and Education, Ain Shams University, Cairo 11511, Egypt
| | - Dalia Mahmoud Abdelmonem Elsherbini
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Jouf University, P.O. Box 2014, Sakaka 42421, Saudi Arabia;
- Department of Anatomy, Faculty of Medicine, Mansoura University, Mansoura 35516, Egypt
| | - Rasha Hamed Al-Serwi
- Department of Basic Dental Sciences, College of Dentistry, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia;
| | - Mohamed El-Sherbiny
- Department of Basic Medical Sciences, College of Medicine, AlMaarefa University, P.O. Box 71666, Riyadh 11597, Saudi Arabia
- Correspondence: (M.E.-S.); (N.M.E.)
| | - Gehan Ahmed Shaker
- Department of Medical Physiology, Faculty of Medicine, Mansoura University, Mansoura 35516, Egypt; (G.A.S.); (A.-M.H.A.-M.)
| | - Abdel-Moneim Hafez Abdel-Moneim
- Department of Medical Physiology, Faculty of Medicine, Mansoura University, Mansoura 35516, Egypt; (G.A.S.); (A.-M.H.A.-M.)
- Department of Medical Physiology, Faculty of Medicine, Qassim University, Buraydah 51452, Saudi Arabia
| | - Eman T. Enan
- Department of Pathology, Faculty of Medicine, Mansoura University, Mansoura 35516, Egypt;
| | - Nehal M. Elsherbiny
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Tabuk, Tabuk 71491, Saudi Arabia
- Department of Biochemistry, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
- Correspondence: (M.E.-S.); (N.M.E.)
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3
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Nogueira RBSS, Tomaz ACA, Pessoa DR, Xavier AL, Pita JCLR, Sobral MV, Pontes MLC, Pessôa HLF, Diniz MFFM, Miranda GEC, Vieira MAR, Marques MOM, Souza MDFV, Cunha EVL. Brown Algae Padina sanctae-crucis Børgesen: A Potential Nutraceutical. Mar Drugs 2017; 15:E251. [PMID: 28954390 PMCID: PMC5666402 DOI: 10.3390/md15100251] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2017] [Revised: 07/24/2017] [Accepted: 08/07/2017] [Indexed: 02/04/2023] Open
Abstract
Padina sanctae-crucis Børgesen is distributed worldwide in tropical and subtropical seas; belongs to the Dictyotaceae family, and has proven to be an exceptional source of biologically active compounds. Four compounds were isolated and identified, namely: dolastane diterpene new for the genus Padina; phaeophytin and hidroxy-phaeophytin new for the family Dictyotaceae, and; mannitol first described in this species. Saturated fatty acids as compared to the percentages of unsaturated fatty acids were shown to be present in greater abundance. Palmitic and linolenic acid were the main saturated and unsaturated acids, respectively. Cytotoxic and antioxidant activities were evaluated using human erythrocytes. In vivo evaluations of acute toxicity and genotoxicity were performed in mice. Methanolic extract of P.sanctae-crucis presented antioxidant activity and did not induce cytotoxicity, genotoxicity or acute toxicity. Since Padina sanctae-crucis is already used as food, has essential fatty acids for the nutrition of mammals, does not present toxicity and has antioxidant activity, it can be considered as a potential nutraceutical.
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Affiliation(s)
- Raquel B S S Nogueira
- Postgraduate Program in Bioactive Natural and Synthetic Products, Health Sciences Center, Federal University of Paraíba, João Pessoa 58051-970, PB, Brazil.
| | - Anna Cláudia A Tomaz
- Postgraduate Program in Bioactive Natural and Synthetic Products, Health Sciences Center, Federal University of Paraíba, João Pessoa 58051-970, PB, Brazil.
| | - Déborah R Pessoa
- Postgraduate Program in Bioactive Natural and Synthetic Products, Health Sciences Center, Federal University of Paraíba, João Pessoa 58051-970, PB, Brazil.
| | - Aline L Xavier
- Postgraduate Program in Bioactive Natural and Synthetic Products, Health Sciences Center, Federal University of Paraíba, João Pessoa 58051-970, PB, Brazil.
| | - João Carlos L R Pita
- Postgraduate Program in Bioactive Natural and Synthetic Products, Health Sciences Center, Federal University of Paraíba, João Pessoa 58051-970, PB, Brazil.
| | - Marianna V Sobral
- Postgraduate Program in Bioactive Natural and Synthetic Products, Health Sciences Center, Federal University of Paraíba, João Pessoa 58051-970, PB, Brazil.
- Department of Pharmaceutical Sciences, Federal University of Paraíba, João Pessoa 58051-900, PB, Brazil.
| | - Marcela L C Pontes
- Postgraduate Program in Bioactive Natural and Synthetic Products, Health Sciences Center, Federal University of Paraíba, João Pessoa 58051-970, PB, Brazil.
| | - Hilzeth L F Pessôa
- Postgraduate Program in Development and Technological Innovation in Medicines, Health Sciences Center, Federal University of Paraíba, João Pessoa 58051-970, PB, Brazil.
- Department of Molecular Biology, Federal University of Paraíba, João Pessoa 58051-900, PB, Brazil.
| | - Margareth F F M Diniz
- Postgraduate Program in Bioactive Natural and Synthetic Products, Health Sciences Center, Federal University of Paraíba, João Pessoa 58051-970, PB, Brazil.
- Department of Pharmaceutical Sciences, Federal University of Paraíba, João Pessoa 58051-900, PB, Brazil.
- Postgraduate Program in Development and Technological Innovation in Medicines, Health Sciences Center, Federal University of Paraíba, João Pessoa 58051-970, PB, Brazil.
| | - George Emmanuel C Miranda
- Department of Systematics and Ecology, Federal University of Paraíba, João Pessoa 58051-900, PB, Brazil.
| | - Maria Aparecida R Vieira
- Center of R&D of Plant Genetic Resources, Agronomical Institute, CP28, Campinas 13001-970, SP, Brazil.
| | - Marcia O M Marques
- Center of R&D of Plant Genetic Resources, Agronomical Institute, CP28, Campinas 13001-970, SP, Brazil.
| | - Maria de Fátima V Souza
- Postgraduate Program in Bioactive Natural and Synthetic Products, Health Sciences Center, Federal University of Paraíba, João Pessoa 58051-970, PB, Brazil.
- Department of Pharmaceutical Sciences, Federal University of Paraíba, João Pessoa 58051-900, PB, Brazil.
- Postgraduate Program in Development and Technological Innovation in Medicines, Health Sciences Center, Federal University of Paraíba, João Pessoa 58051-970, PB, Brazil.
| | - Emídio V L Cunha
- Postgraduate Program in Bioactive Natural and Synthetic Products, Health Sciences Center, Federal University of Paraíba, João Pessoa 58051-970, PB, Brazil.
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de Castro Oliveira LG, Brito LM, de Moraes Alves MM, Amorim LV, Sobrinho-Júnior EPC, de Carvalho CES, da Franca Rodrigues KA, Arcanjo DDR, das Graças Lopes Citó AM, de Amorim Carvalho FA. In VitroEffects of the Neolignan 2,3-Dihydrobenzofuran AgainstLeishmania Amazonensis. Basic Clin Pharmacol Toxicol 2016; 120:52-58. [DOI: 10.1111/bcpt.12639] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Accepted: 07/05/2016] [Indexed: 11/29/2022]
Affiliation(s)
| | - Lucas Moreira Brito
- Medicinal Plants Research Center; Federal University of Piauí; Teresina PI Brazil
| | | | | | | | | | | | - Daniel Dias Rufino Arcanjo
- Medicinal Plants Research Center; Federal University of Piauí; Teresina PI Brazil
- Department of Biophysics and Physiology; Federal University of Piauí; Teresina PI Brazil
| | | | - Fernando Aécio de Amorim Carvalho
- Medicinal Plants Research Center; Federal University of Piauí; Teresina PI Brazil
- Department of Biochemistry and Pharmacology; Federal University of Piauí; Teresina PI Brazil
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5
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Baldissera MD, Grando TH, Souza CF, Cossetin LF, Sagrillo MR, Nascimento K, da Silva AP, Dalla Lana DF, Da Silva AS, Stefani LM, Monteiro SG. Nerolidol nanospheres increases its trypanocidal efficacy against Trypanosoma evansi: New approach against diminazene aceturate resistance and toxicity. Exp Parasitol 2016; 166:144-9. [DOI: 10.1016/j.exppara.2016.04.015] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2016] [Revised: 04/06/2016] [Accepted: 04/19/2016] [Indexed: 11/30/2022]
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Lustosa AKM, Arcanjo DD, Ribeiro RG, Rodrigues KAF, Passos FFB, Piauilino CA, Silva-Filho JC, Araújo BQ, Lima-Neto JS, Costa-Júnior JS, Carvalho FAA, Citó AMDGL. Immunomodulatory and toxicological evaluation of the fruit seeds from Platonia insignis, a native species from Brazilian Amazon Rainforest. REVISTA BRASILEIRA DE FARMACOGNOSIA-BRAZILIAN JOURNAL OF PHARMACOGNOSY 2016. [DOI: 10.1016/j.bjp.2015.05.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Andrade LN, Lima TC, Amaral RG, Pessoa CDÓ, Filho MODM, Soares BM, do Nascimento LG, Carvalho AA, de Sousa DP. Evaluation of the cytotoxicity of structurally correlated p-menthane derivatives. Molecules 2015. [PMID: 26197313 PMCID: PMC6331850 DOI: 10.3390/molecules200713264] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Compounds isolated from essential oils play an important role in the prevention and treatment of cancer. Monoterpenes are natural products, and the principal constituents of many essential oils. The aim of this study was to investigate the cytotoxic potential of p-menthane derivatives. Additionally, analogues of perillyl alcohol, a monoterpene with known anticancer activity, were evaluated to identify the molecular characteristics which contribute to their cytotoxicity, which was tested against OVCAR-8, HCT-116, and SF-295 human tumor cell lines, using the MTT assay. The results of this study showed that (−)-perillaldehyde 8,9-epoxide exhibited the highest percentage inhibition of cell proliferation (GI = 96.32%–99.89%). Perillyl alcohol exhibited high cytotoxic activity (90.92%–95.82%), while (+)-limonene 1,2-epoxide (GI = 58.48%–93.10%), (−)-perillaldehyde (GI = 59.28%–83.03%), and (−)-8-hydroxycarvotanacetone (GI = 61.59%–94.01%) showed intermediate activity. All of the compounds tested were less cytotoxic than perillyl alcohol, except (−)-perillaldehyde 8,9-epoxide (IC50 = 1.75–1.03 µL/mg). In general, replacement of C-C double bonds by epoxide groups in addition to the aldehyde group increases cytotoxicity. Furthermore, stereochemistry seems to play an important role in cytotoxicity. We have demonstrated the cytotoxic influence of chemical substituents on the p-menthane structure, and analogues of perillyl alcohol.
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Affiliation(s)
- Luciana Nalone Andrade
- Departamento de Fisiologia, Universidade Federal de Sergipe, CEP 49100-000, São Cristóvão-SE, Brazil; E-Mails: (L.N.A.); (T.C.L.); (R.G.A.)
| | - Tamires Cardoso Lima
- Departamento de Fisiologia, Universidade Federal de Sergipe, CEP 49100-000, São Cristóvão-SE, Brazil; E-Mails: (L.N.A.); (T.C.L.); (R.G.A.)
| | - Ricardo Guimarães Amaral
- Departamento de Fisiologia, Universidade Federal de Sergipe, CEP 49100-000, São Cristóvão-SE, Brazil; E-Mails: (L.N.A.); (T.C.L.); (R.G.A.)
| | - Cláudia do Ó Pessoa
- Departamento de Fisiologia e Farmacologia, Universidade Federal do Ceará, CEP 60430-270, Fortaleza-SE, Brazil; E-Mails: (G.P.); (M.O.M.F.); (B.M.S.)
| | - Manoel Odorico de Moraes Filho
- Departamento de Fisiologia e Farmacologia, Universidade Federal do Ceará, CEP 60430-270, Fortaleza-SE, Brazil; E-Mails: (G.P.); (M.O.M.F.); (B.M.S.)
| | - Bruno Marques Soares
- Departamento de Fisiologia e Farmacologia, Universidade Federal do Ceará, CEP 60430-270, Fortaleza-SE, Brazil; E-Mails: (G.P.); (M.O.M.F.); (B.M.S.)
| | | | | | - Damião Pergentino de Sousa
- Universidade Federal da Paraíba, CP 5009, CEP 58051-970, João Pessoa-PB, Brazil; E-Mail:
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +55-83-3216-7347; Fax: +55-83-3216-7156
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Abstract
SummaryAlpha-lipoic acid (ALA) is known to be a natural antioxidant. The aim of the present study was to evaluate the cryoprotective effect of ALA on the motility of boar spermatozoa and its antioxidant effect on boar spermatozoa during freezing–thawing. Different concentrations (2.0, 4.0, 6.0, 8.0 or 10.0 mg/ml) of ALA were added to the extender used to freeze boar semen, and the effects on the quality and endogenous antioxidant enzyme activities of frozen–thawed spermatozoa were assessed. The results indicated that the addition of ALA to the extender resulted in a higher percentage of motile spermatozoa post-thaw (P < 0.05). The activities of superoxide dismutase, lactate dehydrogenase, glutamic-oxaloacetic transaminase and catalase improved after adding ALA to the extender (P < 0.05). Artificial insemination results showed that pregnancy rate and litter size were significantly higher at 6.0 mg/ml in the ALA group than in the control group (P < 0.05). In conclusion, ALA conferred a cryoprotective capacity to the extender used for boar semen during the process of freezing–thawing, and the optimal concentration of ALA for the frozen extender was 6.0 mg/ml.
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Jain S, Kambam S, Thanki K, Jain AK. Cyclosporine A loaded self-nanoemulsifying drug delivery system (SNEDDS): implication of a functional excipient based co-encapsulation strategy on oral bioavailability and nephrotoxicity. RSC Adv 2015. [DOI: 10.1039/c5ra04762e] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The present work focusses on the formulation development and evaluation of a functional excipient, a vitamin E TPGS loaded self-nanoemulsifying drug delivery system, for improving the deliverability and safety profile of cyclosporine A.
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Affiliation(s)
- Sanyog Jain
- Centre for Pharmaceutical Nanotechnology
- Department of Pharmaceutics
- National Institute of Pharmaceutical Education and Research (NIPER)
- Mohali
- India
| | - Sindhu Kambam
- Centre for Pharmaceutical Nanotechnology
- Department of Pharmaceutics
- National Institute of Pharmaceutical Education and Research (NIPER)
- Mohali
- India
| | - Kaushik Thanki
- Centre for Pharmaceutical Nanotechnology
- Department of Pharmaceutics
- National Institute of Pharmaceutical Education and Research (NIPER)
- Mohali
- India
| | - Amit K. Jain
- Centre for Pharmaceutical Nanotechnology
- Department of Pharmaceutics
- National Institute of Pharmaceutical Education and Research (NIPER)
- Mohali
- India
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10
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Badavi M, Sadeghi N, Dianat M, Samarbafzadeh A. Effects of gallic Acid and cyclosporine a on antioxidant capacity and cardiac markers of rat isolated heart after ischemia/reperfusion. IRANIAN RED CRESCENT MEDICAL JOURNAL 2014; 16:e16424. [PMID: 25068044 PMCID: PMC4102977 DOI: 10.5812/ircmj.16424] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2013] [Revised: 01/06/2014] [Accepted: 03/29/2014] [Indexed: 12/31/2022]
Abstract
BACKGROUND Myocardial infarction is one of the important causes of death during old ages. Gallic acid as an antioxidant or cyclosporine A (CsA) as inhibitor of mitochondrial permeability transition pore (mPTP) alone could prevent these complications to some extent, but their combination effect has not been investigated. OBJECTIVES The aim of this study was to determine the combined effect of gallic acid and CsA on antioxidant capacity of isolated heart tissues during ischemia reperfusion. MATERIALS AND METHODS EIGHTY MALE WISTAR RATS WERE RANDOMLY ASSIGNED TO DIFFERENT GROUPS: sham, control (Ca, received saline, 1 mL/kg); 3 groups were pretreated with gallic acid (G1a: 7.5, G2a: 15, G3a: 30 mg/kg) for 10 days, and the other 3 groups were pretreated with gallic acid and received CsA (0.2 µM) for 10 minutes before induction of ischemia and during the first 10 minutes of reperfusion (G1b, G2b and G3b) and the last group received CsA alone (Cb). After 10 days of pretreatment, the heart was isolated and transferred to the Langendorff apparatus and exposed to 30 minutes ischemia followed by 60 minutes of reperfusion. After that cardiac markers and antioxidant enzymes were assessed in cardiac tissues. RESULTS Lactate dehydrogenase (LDH), Superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GPX) activity increased and malondialdehyde (MDA) decreased in animals pretreated with gallic acid significantly. However, pretreatment with gallic acid followed by CsA during reperfusion improved the antioxidant capacity and cardiac marker enzymes and restored the lipid peroxidation more effective than gallic acid or CsA alone. Nevertheless, CsA did not change the cardiac marker enzymes significantly. CONCLUSIONS Gallic acid and CsA combination improved antioxidant capacity and cell membrane integrity more than each one alone. Therefore, it can be a therapeutic approach to reduce the I/R injury.
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Affiliation(s)
- Mohammad Badavi
- Physiology Research Centre, Department of Physiology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, IR Iran
- Atherosclerosis Research Center, Golestan Hospital, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, IR Iran
| | - Najmeh Sadeghi
- Diabetes Research Center, Department of Physiology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, IR Iran
- Corresponding Author: Najmeh Sadeghi, Diabetes Research Center, Department of Physiology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, IR Iran. Tel: +98-9177391953, E-mail:
| | - Mahin Dianat
- Atherosclerosis Research Center, Golestan Hospital, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, IR Iran
| | - Alireza Samarbafzadeh
- Infectious and Tropical Diseases Research Center, Department of Virology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, IR Iran
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Taniai E, Yafune A, Nakajima M, Hayashi SM, Nakane F, Itahashi M, Shibutani M. Ochratoxin A induces karyomegaly and cell cycle aberrations in renal tubular cells without relation to induction of oxidative stress responses in rats. Toxicol Lett 2014; 224:64-72. [DOI: 10.1016/j.toxlet.2013.10.001] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2013] [Revised: 09/29/2013] [Accepted: 10/01/2013] [Indexed: 12/28/2022]
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12
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Silva DGH, Belini Junior E, de Almeida EA, Bonini-Domingos CR. Oxidative stress in sickle cell disease: an overview of erythrocyte redox metabolism and current antioxidant therapeutic strategies. Free Radic Biol Med 2013; 65:1101-1109. [PMID: 24002011 DOI: 10.1016/j.freeradbiomed.2013.08.181] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2013] [Revised: 08/22/2013] [Accepted: 08/22/2013] [Indexed: 01/19/2023]
Abstract
Erythrocytes have an environment of continuous pro-oxidant generation due to the presence of hemoglobin (Hb), which represents an additional and quantitatively significant source of superoxide (O2(-)) generation in biological systems. To counteract oxidative stress, erythrocytes have a self-sustaining antioxidant defense system. Thus, red blood cells uniquely function to protect Hb via a selective barrier allowing gaseous and other ligand transport as well as providing antioxidant protection not only to themselves but also to other tissues and organs in the body. Sickle hemoglobin molecules suffer repeated polymerization/depolymerization generating greater amounts of reactive oxygen species, which can lead to a cyclic cascade characterized by blood cell adhesion, hemolysis, vaso-occlusion, and ischemia-reperfusion injury. In other words, sickle cell disease is intimately linked to a pathophysiologic condition of multiple sources of pro-oxidant processes with consequent chronic and systemic oxidative stress. For this reason, newer therapeutic agents that can target oxidative stress may constitute a valuable means for preventing or delaying the development of organ complications.
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Affiliation(s)
- Danilo Grunig Humberto Silva
- Hemoglobin and Hematologic Genetic Diseases Laboratory, Department of Biology, Sao Paulo State University "Julio de Mesquita Filho," 15054-000 Sao Jose do Rio Preto, SP, Brazil; Laboratory of Aquatic Contamination Biomarkers, Department of Chemistry and Environmental Sciences, Sao Paulo State University "Julio de Mesquita Filho," 15054-000 Sao Jose do Rio Preto, SP, Brazil
| | - Edis Belini Junior
- Hemoglobin and Hematologic Genetic Diseases Laboratory, Department of Biology, Sao Paulo State University "Julio de Mesquita Filho," 15054-000 Sao Jose do Rio Preto, SP, Brazil
| | - Eduardo Alves de Almeida
- Laboratory of Aquatic Contamination Biomarkers, Department of Chemistry and Environmental Sciences, Sao Paulo State University "Julio de Mesquita Filho," 15054-000 Sao Jose do Rio Preto, SP, Brazil
| | - Claudia Regina Bonini-Domingos
- Hemoglobin and Hematologic Genetic Diseases Laboratory, Department of Biology, Sao Paulo State University "Julio de Mesquita Filho," 15054-000 Sao Jose do Rio Preto, SP, Brazil.
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On the performance of trimetazidine and vitamin e as pharmacoprotection agents in cyclosporin a-induced toxicity. ISRN PHARMACOLOGY 2013; 2013:605640. [PMID: 23691353 PMCID: PMC3654278 DOI: 10.1155/2013/605640] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/26/2012] [Accepted: 01/17/2013] [Indexed: 12/31/2022]
Abstract
The immunosuppressant drug cyclosporin A (CyA) has been used in diseases with immunological basis and in transplant patients. Nephrotoxicity and hepatotoxicity are the main adverse effects of this drug. To find a protective drug against those effects we assayed the cardioprotector Trimetazidine (TMZ) and vitamin E, used as nutritional supplements to alleviate oxidative stress. Six groups of eight male Wistar rats each were prepared (groups A-F): A, control; B, vitamin E (10 mg/Kg/day); C, TMZ (20 mg/Kg/day); D, 25 mg/Kg/day CyA; E, CyA and vitamin E (25 mg/Kg/day CyA + 10 mg/Kg/day Vit E); F, TMZ for 20 days (20 mg/kg/day); and then CyA (25 mg/kg/day) and TMZ (20 mg/Kg/day). The experiment lasted 120 days. The exposure of rats to CyA promoted nephrotoxicity and hepatotoxicity with an increase in serum urea, creatinine, and glutamate dehydrogenase (GLDH). Structural and ultrastructural studies of liver and kidney were performed. Group D showed adverse effects induced by CyA since statistically significant differences were found with respect to the control group (A). Vitamin E (E) showed no protective effect. Pretreatment with TMZ (F) attenuated the adverse effects of CyA. We conclude that CyA-induced nephrotoxicity and hepatotoxicity are attenuated by the cytoprotective effect of TMZ. TMZ inhibits the reabsorption and, consequently, the accumulation of CyA in the cell. The antioxidant capacity of vitamin E did not improve the effect of CyA.
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Cichewicz A, Pacleb C, Connors A, Hass MA, Lopes LB. Cutaneous delivery of α-tocopherol and lipoic acid using microemulsions: influence of composition and charge. ACTA ACUST UNITED AC 2013; 65:817-26. [PMID: 23647675 DOI: 10.1111/jphp.12045] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2012] [Accepted: 01/15/2013] [Indexed: 01/12/2023]
Abstract
OBJECTIVES To assess whether the composition and charge of microemulsions affect their ability to simultaneously deliver α-tocopherol and lipoic acid into viable skin layers. METHODS α-Tocopherol and lipoic acid were added (1.1 and 0.5% w/w, respectively) to decylglucoside-based microemulsions containing mono-dicaprylin. Microemulsions containing surfactant : oil : water (w/w/w) at 60 : 30 : 10 (ME-O) and 46 : 23 : 31 (ME-W), as well as a cationic form of ME-W containing 1% phytosphingosine (ME-Wphy) were characterized, and their ability to disrupt the skin barrier and deliver the antioxidants in vitro in the skin was evaluated. Antioxidant activity in ME-Wphy-treated skin was assessed using the thiobarbituric acid-reactive substances (TBARS) assay. KEY FINDINGS The internal phase diameters of microemulsions ranged between 42 and 55 nm; phytosphingosine addition and pH adjustment to 5.0 increased zeta potential from -4.3 to +29.1 mV. ME-O displayed w/o structure, whereas ME-W and ME-Wphy were consistent with o/w. Microemulsions affected skin electrical resistance and transepidermal water loss, but did not affect lipoic acid penetration. α-Tocopherol delivery increased following the order ME-O < ME-W < ME-Wphy. ME-Wphy presented suitable short-term stability. The antioxidants delivered by ME-Wphy decreased TBARS cutaneous levels. CONCLUSIONS Even though microemulsion structure only affected tocopherol penetration, delivered levels of both antioxidants were sufficient for a decrease in TBARS, supporting their use for enhanced protection.
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Affiliation(s)
- Allie Cichewicz
- Department of Pharmaceutical Sciences, Albany College of Pharmacy and Health Sciences, 106 New Scotland Avenue, Albany, NY 12208, USA
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15
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Eugenia uniflora L. Essential Oil as a Potential Anti-Leishmania Agent: Effects on Leishmania amazonensis and Possible Mechanisms of Action. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2013; 2013:279726. [PMID: 23533469 PMCID: PMC3590759 DOI: 10.1155/2013/279726] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/13/2012] [Revised: 12/14/2012] [Accepted: 01/17/2013] [Indexed: 11/17/2022]
Abstract
Eugenia uniflora L. is a member of the Myrtaceae family and is commonly known as Brazilian cherry tree. In this study, we evaluated the chemical composition of Eugenia uniflora L. essential oil (EuEO) by using gas chromatography-mass spectrometry (GC-MS) and assessed its anti-Leishmania activity. We also explored the potential mechanisms of action and cytotoxicity of EuEO. Thirty-two compounds were identified, which constituted 92.65% of the total oil composition. The most abundant components were sesquiterpenes (91.92%), with curzerene (47.3%), γ -elemene (14.25%), and trans- β -elemenone (10.4%) being the major constituents. The bioactivity shown by EuEO against promastigotes (IC50, 3.04 μ g·mL(-1)) and amastigotes (IC50, 1.92 μ g·mL(-1)) suggested significant anti-Leishmania activity. In the cytotoxicity determination, EuEO was 20 times more toxic to amastigotes than to macrophages. Hemolytic activity was 63.22% at the highest concentration tested (400 μ g·mL(-1)); however, there appeared to be no toxicity at 50 μ g·mL(-1). While the data show that EuEO activity is not mediated by nitric oxide production, they do suggest that macrophage activation may be involved in EuEO anti-Leishmania activity, as evidenced by increases in both the phagocytic capacity and the lysosomal activity. More studies are needed to determine in vivo activity as well as additional mechanisms of the anti-Leishmania activity.
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Pita JCLR, Xavier AL, de Sousa TKG, Mangueira VM, Tavares JF, Júnior RJDO, Veras RC, Pessoa HDLF, da Silva MS, Morelli S, Ávila VDMR, da Silva TG, Diniz MDFFM, Castello-Branco MVS. In vitro and in vivo antitumor effect of trachylobane-360, a diterpene from Xylopia langsdorffiana. Molecules 2012; 17:9573-89. [PMID: 22885357 PMCID: PMC6269042 DOI: 10.3390/molecules17089573] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2012] [Revised: 07/31/2012] [Accepted: 08/02/2012] [Indexed: 11/16/2022] Open
Abstract
Trachylobane-360 (ent-7α-acetoxytrachyloban-18-oic acid) was isolated from Xylopia langsdorffiana. Studies have shown that it has weak cytotoxic activity against tumor and non-tumor cells. This study investigated the in vitro and in vivo antitumor effects of trachylobane-360, as well as its cytotoxicity in mouse erythrocytes. In order to evaluate the in vivo toxicological aspects related to trachylobane-360 administration, hematological, biochemical and histopathological analyses of the treated animals were performed. The compound exhibited a concentration-dependent effect in inducing hemolysis with HC50 of 273.6 µM, and a moderate in vitro concentration-dependent inhibitory effect on the proliferation of sarcoma 180 cells with IC50 values of 150.8 µM and 150.4 µM, evaluated by the trypan blue exclusion test and MTT reduction assay, respectively. The in vivo inhibition rates of sarcoma 180 tumor development were 45.60, 71.99 and 80.06% at doses of 12.5 and 25 mg/kg of trachylobane-360 and 25 mg/kg of 5-FU, respectively. Biochemical parameters were not altered. Leukopenia was observed after 5-FU treatment, but this effect was not seen with trachylobane-360 treatment. The histopathological analysis of liver and kidney showed that both organs were mildly affected by trachylobane-360 treatment. Trachylobane-360 showed no immunosuppressive effect. In conclusion, these data reinforce the anticancer potential of this natural diterpene.
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Affiliation(s)
- João Carlos Lima Rodrigues Pita
- Laboratory of Pharmaceutical Technology, Federal University of Paraíba, P.O. Box 5009, João Pessoa 58051-970, PB, Brazil; (J.C.L.R.P.); (A.L.X.); (T.K.G.S.); (V.M.M.); (J.F.T.); (R.C.V.); (H.L.F.P.); (M.S.S.); (M.F.F.M.D.)
| | - Aline Lira Xavier
- Laboratory of Pharmaceutical Technology, Federal University of Paraíba, P.O. Box 5009, João Pessoa 58051-970, PB, Brazil; (J.C.L.R.P.); (A.L.X.); (T.K.G.S.); (V.M.M.); (J.F.T.); (R.C.V.); (H.L.F.P.); (M.S.S.); (M.F.F.M.D.)
| | - Tatyanna Kelvia Gomes de Sousa
- Laboratory of Pharmaceutical Technology, Federal University of Paraíba, P.O. Box 5009, João Pessoa 58051-970, PB, Brazil; (J.C.L.R.P.); (A.L.X.); (T.K.G.S.); (V.M.M.); (J.F.T.); (R.C.V.); (H.L.F.P.); (M.S.S.); (M.F.F.M.D.)
| | - Vivianne Mendes Mangueira
- Laboratory of Pharmaceutical Technology, Federal University of Paraíba, P.O. Box 5009, João Pessoa 58051-970, PB, Brazil; (J.C.L.R.P.); (A.L.X.); (T.K.G.S.); (V.M.M.); (J.F.T.); (R.C.V.); (H.L.F.P.); (M.S.S.); (M.F.F.M.D.)
| | - Josean Fechine Tavares
- Laboratory of Pharmaceutical Technology, Federal University of Paraíba, P.O. Box 5009, João Pessoa 58051-970, PB, Brazil; (J.C.L.R.P.); (A.L.X.); (T.K.G.S.); (V.M.M.); (J.F.T.); (R.C.V.); (H.L.F.P.); (M.S.S.); (M.F.F.M.D.)
| | - Robson José de Oliveira Júnior
- Laboratory of Cytogenetic, Institute of Genetics and Biochemistry, Federal University of Uberlandia, P.O. Box 593, Uberlândia 38400-902, MG, Brazil; (R.J.O.J.); (S.M.); (V.M.R.A.)
| | - Robson Cavalcante Veras
- Laboratory of Pharmaceutical Technology, Federal University of Paraíba, P.O. Box 5009, João Pessoa 58051-970, PB, Brazil; (J.C.L.R.P.); (A.L.X.); (T.K.G.S.); (V.M.M.); (J.F.T.); (R.C.V.); (H.L.F.P.); (M.S.S.); (M.F.F.M.D.)
| | - Hilzeth de Luna Freire Pessoa
- Laboratory of Pharmaceutical Technology, Federal University of Paraíba, P.O. Box 5009, João Pessoa 58051-970, PB, Brazil; (J.C.L.R.P.); (A.L.X.); (T.K.G.S.); (V.M.M.); (J.F.T.); (R.C.V.); (H.L.F.P.); (M.S.S.); (M.F.F.M.D.)
| | - Marcelo Sobral da Silva
- Laboratory of Pharmaceutical Technology, Federal University of Paraíba, P.O. Box 5009, João Pessoa 58051-970, PB, Brazil; (J.C.L.R.P.); (A.L.X.); (T.K.G.S.); (V.M.M.); (J.F.T.); (R.C.V.); (H.L.F.P.); (M.S.S.); (M.F.F.M.D.)
| | - Sandra Morelli
- Laboratory of Cytogenetic, Institute of Genetics and Biochemistry, Federal University of Uberlandia, P.O. Box 593, Uberlândia 38400-902, MG, Brazil; (R.J.O.J.); (S.M.); (V.M.R.A.)
| | - Veridiana de Melo Rodrigues Ávila
- Laboratory of Cytogenetic, Institute of Genetics and Biochemistry, Federal University of Uberlandia, P.O. Box 593, Uberlândia 38400-902, MG, Brazil; (R.J.O.J.); (S.M.); (V.M.R.A.)
| | | | - Margareth de Fátima Formiga Melo Diniz
- Laboratory of Pharmaceutical Technology, Federal University of Paraíba, P.O. Box 5009, João Pessoa 58051-970, PB, Brazil; (J.C.L.R.P.); (A.L.X.); (T.K.G.S.); (V.M.M.); (J.F.T.); (R.C.V.); (H.L.F.P.); (M.S.S.); (M.F.F.M.D.)
| | - Marianna Vieira Sobral Castello-Branco
- Laboratory of Pharmaceutical Technology, Federal University of Paraíba, P.O. Box 5009, João Pessoa 58051-970, PB, Brazil; (J.C.L.R.P.); (A.L.X.); (T.K.G.S.); (V.M.M.); (J.F.T.); (R.C.V.); (H.L.F.P.); (M.S.S.); (M.F.F.M.D.)
- Author to whom correspondence should be addressed; ; Tel.: +55-83-3216-7003; Fax: +55-83-3216-7427
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Abstract
This study investigated the beneficial effects of D-α-tocopherol supplementation in protecting against the renal morphological and functional changes caused by hypertension. Spontaneously hypertensive (SHR) and normotensive control (WKY) rats received D-α-tocopherol (80 mg/kg by gavage) or vehicle (mineral oil) every other day for 60 days, from the age of 2 months. After this treatment period, all animals were assessed for renal morphological and functional parameters. The glomerular hypertrophy, increased interlobular wall thickness and enlarged renal vascular resistance found in SHR were reduced by D-α-tocopherol treatment. Sodium and volume retention observed in SHR were also decreased by D-α-tocopherol treatment. Moreover, D-α-tocopherol supplementation significantly reduced arterial pressure in SHR but not in WKY. D-α-tocopherol also reduced the excretion of thiobarbituric acid-reactive substances (TBARS), a marker of oxidative stress, in SHR. These results suggest that D-α-tocopherol supplementation can reduce kidney damage induced by hypertension.
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In vitro antiplasmodial activity of spiro benzofuran compound from mangrove plant of Southern India. ASIAN PAC J TROP MED 2012; 5:358-61. [DOI: 10.1016/s1995-7645(12)60059-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2011] [Revised: 01/15/2012] [Accepted: 03/15/2012] [Indexed: 11/24/2022] Open
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19
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Chirico EN, Pialoux V. Role of oxidative stress in the pathogenesis of sickle cell disease. IUBMB Life 2011; 64:72-80. [DOI: 10.1002/iub.584] [Citation(s) in RCA: 148] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2011] [Revised: 09/01/2011] [Accepted: 09/02/2011] [Indexed: 12/12/2022]
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Gonçalves GMS, Srebernich SM, Souza JADM. Stability and sensory assessment of emulsions containing propolis extract and/or tocopheryl acetate. BRAZ J PHARM SCI 2011. [DOI: 10.1590/s1984-82502011000300016] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The prevention of skin aging has been one of the main aims of cosmetic products. Propolis and tocopheryl acetate can be promising substances because of their antioxidant properties. In this study, propolis extract was obtained and associated with tocopheryl acetate in a cream formulation, which then underwent stability and sensory assessment. The formulation containing propolis extract and tocopheryl acetate proved to be stable in the preliminary stability study, demonstrating gradual darkening and slight pH decrease when subjected to 60ºC for 28 days, but showing stability on rheological study. In the sensory analysis, the formulation containing these two components was preferred by the product testers over the base cream and creams containing propolis extract or tocopheryl acetate alone. In conclusion, given the stability of the formulation and the preference of the product testers for this formulation, this association proved promising for use in cosmetic formulations.
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Nascimento H, Belo L, Fernandes J, Rocha S, Quintanilha A, Santos-Silva A. In vitrostudies with ‘acatalasemic-like’ erythrocytes and hydrogen peroxide: attention to the formation of lysis resistant erythrocytes. Int J Lab Hematol 2010; 32:127-31. [PMID: 19170773 DOI: 10.1111/j.1751-553x.2008.01129.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- H Nascimento
- Serviço Bioquímica, Faculdade de Farmácia, Universidade do Porto, Porto, Portugal.
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22
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Antioxidant status in patients with osteoporosis: A controlled study. Joint Bone Spine 2009; 76:514-8. [DOI: 10.1016/j.jbspin.2009.02.005] [Citation(s) in RCA: 141] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2008] [Accepted: 02/24/2009] [Indexed: 11/21/2022]
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Ay H, Uzun G, Onem Y, Aydinoz S, Yildiz S, Bilgi O, Topal T, Atasoyu EM. Effect of Hyperbaric Oxygen on Cyclosporine-Induced Nephrotoxicity and Oxidative Stress in Rats. Ren Fail 2009; 29:495-501. [PMID: 17497475 DOI: 10.1080/08860220701274983] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
Abstract
Reactive oxygen species have been suggested to be involved in cyclosporine nephrotoxicity. Hyperbaric oxygen is known to induce the generation of reactive oxygen species in tissues. The aim of this study was to investigate whether the use of hyperbaric oxygen concurrently with cyclosporine potentiates cyclosporine nephrotoxicity by inducing oxidative stress in kidneys. The study consisted of four groups of rats: a control group, a cyclosporine group (15 mg/kg/day intraperitoneally for 14 days), a hyperbaric oxygen group (60 min. every day for five days at 2.5 atmosphere absolute), and a cyclosporine + hyperbaric oxygen group (cyclosporine 15 mg/kg/day intraperitoneally for 14 days + hyperbaric oxygen for 60 min at 2.5 atmosphere absolute every day for five days on the last five days of cyclosporine treatment). Oxidative stress was determined by measuring renal thiobarbituric acid-reactive substances content, renal superoxide dismutase, and glutathione peroxidase activities. Cyclosporine increased serum urea and creatinine levels, indicating the development of nephrotoxicity, and induced significant oxidative stress in rat kidneys. Hyperbaric oxygen alone did not alter any of the biochemical and oxidative stress parameters compared to the control group. When used concurrently with cyclosporine, hyperbaric oxygen significantly reduced cyclosporine-induced oxidative stress, but it neither attenuated nor aggravated cyclosporine-induced nephrotoxicity. These results suggest that reactive oxygen species are involved in cyclosporine nephrotoxicity, but are not the direct cause of the toxicity. Although concurrent use of cyclosporine and hyperbaric oxygen did not exacerbate cyclosporine nephrotoxicity in this model, we recommend that the renal functions of patients be monitored periodically when these treatments are used concurrently.
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Affiliation(s)
- Hakan Ay
- Department of Undersea and Hyperbaric Medicine, Gulhane Military Medical Academy, Haydarpasa Training Hospital, Uskudar, Istanbul, Turkey
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Silva ECC, Cavalcanti BC, Amorim RCN, Lucena JF, Quadros DS, Tadei WP, Montenegro RC, Costa-Lotufo LV, Pessoa C, Moraes MO, Nunomura RCS, Nunomura SM, Melo MRS, Andrade-Neto VFD, Silva LFR, Vieira PPR, Pohlit AM. Biological activity of neosergeolide and isobrucein B (and two semi-synthetic derivatives) isolated from the Amazonian medicinal plant Picrolemma sprucei (Simaroubaceae). Mem Inst Oswaldo Cruz 2009; 104:48-56. [PMID: 19274376 DOI: 10.1590/s0074-02762009000100008] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2008] [Accepted: 12/01/2008] [Indexed: 11/22/2022] Open
Abstract
In the present study, in vitro techniques were used to investigate a range of biological activities of known natural quassinoids isobrucein B (1) and neosergeolide (2), known semi-synthetic derivative 1,12-diacetylisobrucein B (3), and a new semi-synthetic derivative, 12-acetylneosergeolide (4). These compounds were evaluated for general toxicity toward the brine shrimp species Artemia franciscana, cytotoxicity toward human tumour cells, larvicidal activity toward the dengue fever mosquito vector Aedes aegypti, haemolytic activity in mouse erythrocytes and antimalarial activity against the human malaria parasite Plasmodium falciparum. Compounds 1 and 2 exhibited the greatest cytotoxicity against all the tumor cells tested (IC50 = 5-27 microg/L) and against multidrug-resistant P. falciparum K1 strain (IC50 = 1.0-4.0 g/L) and 3 was only cytotoxic toward the leukaemia HL-60 strain (IC50 = 11.8 microg/L). Quassinoids 1 and 2 (LC50 = 3.2-4.4 mg/L) displayed greater lethality than derivative 4 (LC50 = 75.0 mg/L) toward A. aegypti larvae, while derivative 3 was inactive. These results suggest a novel application for these natural quassinoids as larvicides. The toxicity toward A. franciscana could be correlated with the activity in several biological models, a finding that is in agreement with the literature. Importantly, none of the studied compounds exhibited in vitro haemolytic activity, suggesting specificity of the observed cytotoxic effects. This study reveals the biological potential of quassinoids 1 and 2 and to a lesser extent their semi-synthetic derivatives for their in vitro antimalarial and cytotoxic activities.
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Affiliation(s)
- Ellen C C Silva
- Laboratório de Princípios Ativos da Amazônia, Coordenação de Pesquisas em Produtos Naturais, Instituto Nacional de Pesquisas da Amazônia, Avenida André Araújo 2936, 69060-001Manaus, AM, Brasil
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Alpha-lipoic acid modifies oxidative stress parameters in sickle cell trait subjects and sickle cell patients. Clin Nutr 2009; 28:192-7. [PMID: 19231043 DOI: 10.1016/j.clnu.2009.01.017] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2008] [Revised: 12/22/2008] [Accepted: 01/26/2009] [Indexed: 11/22/2022]
Abstract
BACKGROUND & AIMS Oxidative stress plays a crucial role in the sickle cell disease. Alpha-lipoic acid (ALA) is a potent antioxidant that is employed in the treatment of several diseases. The objective of this study was to test the ALA effect in the sickle cell disease (SCD) treatment. METHODS Sixty subjects were selected and divided into groups according to the hemoglobin profile: AA (normal), AS (SCD trait subject) and SS (SCD patient). Patients were randomized into a placebo-controlled trial and treated with either ALA (200 mg) or vehicle. Blood samples were collected before supplementation and after 3 months of treatment. Catalase (CAT), superoxide dismutase (SOD), glutathione peroxidase (GPx) activities and total antioxidant status (TAS) were evaluated as measure of antioxidant defense. Lipid and protein damages were quantified by malondialdehyde (MDA) and carbonyl assays, respectively. RESULTS CAT activity significantly increased in the AS group after ALA treatment and GPx activity presented significant decrease in all groups. SOD activity was not different in any group. Data on MDA and carbonyl levels showed significant reduction in the AA group with ALA treatment. TAS decreased in the same group. CONCLUSION ALA treatment protected AA individuals from oxidative damage to lipids and proteins. In SCD subjects, the dose applied was not effective to prevent the oxidative damage.
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Fernandes JC, Eaton P, Nascimento H, Belo L, Rocha S, Vitorino R, Amado F, Gomes J, Santos-Silva A, Pintado ME, Malcata FX. Effects of Chitooligosaccharides on Human Red Blood Cell Morphology and Membrane Protein Structure. Biomacromolecules 2008; 9:3346-52. [DOI: 10.1021/bm800622f] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- João C. Fernandes
- Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Dr. António Bernardino de Almeida, P-4200-072 Porto, Portugal, REQUIMTE, Departamento de Química, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre, P-4169-007 Porto, Portugal, Serviço de Bioquímica, Faculdade de Farmácia da Universidade do Porto, Rua Aníbal Cunha, P-4050-047 Porto, Portugal, Instituto de Biologia Molecular e Celular da Universidade do Porto, Rua do Campo Alegre, P-4169-007 Porto, Portugal,
| | - Peter Eaton
- Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Dr. António Bernardino de Almeida, P-4200-072 Porto, Portugal, REQUIMTE, Departamento de Química, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre, P-4169-007 Porto, Portugal, Serviço de Bioquímica, Faculdade de Farmácia da Universidade do Porto, Rua Aníbal Cunha, P-4050-047 Porto, Portugal, Instituto de Biologia Molecular e Celular da Universidade do Porto, Rua do Campo Alegre, P-4169-007 Porto, Portugal,
| | - Henrique Nascimento
- Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Dr. António Bernardino de Almeida, P-4200-072 Porto, Portugal, REQUIMTE, Departamento de Química, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre, P-4169-007 Porto, Portugal, Serviço de Bioquímica, Faculdade de Farmácia da Universidade do Porto, Rua Aníbal Cunha, P-4050-047 Porto, Portugal, Instituto de Biologia Molecular e Celular da Universidade do Porto, Rua do Campo Alegre, P-4169-007 Porto, Portugal,
| | - Luís Belo
- Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Dr. António Bernardino de Almeida, P-4200-072 Porto, Portugal, REQUIMTE, Departamento de Química, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre, P-4169-007 Porto, Portugal, Serviço de Bioquímica, Faculdade de Farmácia da Universidade do Porto, Rua Aníbal Cunha, P-4050-047 Porto, Portugal, Instituto de Biologia Molecular e Celular da Universidade do Porto, Rua do Campo Alegre, P-4169-007 Porto, Portugal,
| | - Susana Rocha
- Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Dr. António Bernardino de Almeida, P-4200-072 Porto, Portugal, REQUIMTE, Departamento de Química, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre, P-4169-007 Porto, Portugal, Serviço de Bioquímica, Faculdade de Farmácia da Universidade do Porto, Rua Aníbal Cunha, P-4050-047 Porto, Portugal, Instituto de Biologia Molecular e Celular da Universidade do Porto, Rua do Campo Alegre, P-4169-007 Porto, Portugal,
| | - Rui Vitorino
- Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Dr. António Bernardino de Almeida, P-4200-072 Porto, Portugal, REQUIMTE, Departamento de Química, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre, P-4169-007 Porto, Portugal, Serviço de Bioquímica, Faculdade de Farmácia da Universidade do Porto, Rua Aníbal Cunha, P-4050-047 Porto, Portugal, Instituto de Biologia Molecular e Celular da Universidade do Porto, Rua do Campo Alegre, P-4169-007 Porto, Portugal,
| | - Francisco Amado
- Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Dr. António Bernardino de Almeida, P-4200-072 Porto, Portugal, REQUIMTE, Departamento de Química, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre, P-4169-007 Porto, Portugal, Serviço de Bioquímica, Faculdade de Farmácia da Universidade do Porto, Rua Aníbal Cunha, P-4050-047 Porto, Portugal, Instituto de Biologia Molecular e Celular da Universidade do Porto, Rua do Campo Alegre, P-4169-007 Porto, Portugal,
| | - Joana Gomes
- Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Dr. António Bernardino de Almeida, P-4200-072 Porto, Portugal, REQUIMTE, Departamento de Química, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre, P-4169-007 Porto, Portugal, Serviço de Bioquímica, Faculdade de Farmácia da Universidade do Porto, Rua Aníbal Cunha, P-4050-047 Porto, Portugal, Instituto de Biologia Molecular e Celular da Universidade do Porto, Rua do Campo Alegre, P-4169-007 Porto, Portugal,
| | - Alice Santos-Silva
- Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Dr. António Bernardino de Almeida, P-4200-072 Porto, Portugal, REQUIMTE, Departamento de Química, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre, P-4169-007 Porto, Portugal, Serviço de Bioquímica, Faculdade de Farmácia da Universidade do Porto, Rua Aníbal Cunha, P-4050-047 Porto, Portugal, Instituto de Biologia Molecular e Celular da Universidade do Porto, Rua do Campo Alegre, P-4169-007 Porto, Portugal,
| | - Manuela E. Pintado
- Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Dr. António Bernardino de Almeida, P-4200-072 Porto, Portugal, REQUIMTE, Departamento de Química, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre, P-4169-007 Porto, Portugal, Serviço de Bioquímica, Faculdade de Farmácia da Universidade do Porto, Rua Aníbal Cunha, P-4050-047 Porto, Portugal, Instituto de Biologia Molecular e Celular da Universidade do Porto, Rua do Campo Alegre, P-4169-007 Porto, Portugal,
| | - F. Xavier Malcata
- Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Dr. António Bernardino de Almeida, P-4200-072 Porto, Portugal, REQUIMTE, Departamento de Química, Faculdade de Ciências da Universidade do Porto, Rua do Campo Alegre, P-4169-007 Porto, Portugal, Serviço de Bioquímica, Faculdade de Farmácia da Universidade do Porto, Rua Aníbal Cunha, P-4050-047 Porto, Portugal, Instituto de Biologia Molecular e Celular da Universidade do Porto, Rua do Campo Alegre, P-4169-007 Porto, Portugal,
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27
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Kasap B, Soylu A, Kuralay F, Sarioglu S, Kiray M, Tuğyan K, Türkmen M, Kavukcu S. Protective effect of Epo on oxidative renal injury in rats with cyclosporine nephrotoxicity. Pediatr Nephrol 2008; 23:1991-9. [PMID: 18618151 DOI: 10.1007/s00467-008-0903-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/26/2007] [Revised: 05/08/2008] [Accepted: 05/09/2008] [Indexed: 02/05/2023]
Abstract
The aim of our study was to determine the effect of recombinant human erythropoietin (rhEPO) on cyclosporine (CsA) nephrotoxicity. Twenty-six female Wistar rats were injected with 15 mg/kg subcutaneous CsA and intraperitoneal saline/rhEPO for 28 days. Four groups were formed: Group 1 (n = 5), a control group; Group 2 (n = 7), CsA + saline; Group 3 (n = 7), CsA + low dose (20 U/kg per day) rhEPO; Group 4 (n = 7), CsA + high dose (100 U/kg per day) rhEPO. Body weights, creatinine clearance, urinary protein/creatinine, hematocrit, serum creatinine levels, histopathological parameters, apoptosis and lipid peroxidation tests were compared between the three groups. Body weights and renal functions were similar in Groups 2, 3 and 4 rats but significantly lower than the values found for the control group at the end of the study. The hematocrit was significantly different between the four groups, showing a positive association with the strength of the injected rhEPO doses. Tubular and arteriolar damage was significantly lower in Groups 3 and 4 rats than in Group 2 rats, while chronic changes were similar between the three groups. TUNEL-positive cells and thiobabarbituric acid reacting substance (TBARS) levels were significantly higher in Group 2 rats, whereas superoxide dismutase levels were significantly lower in Group 2 rats than in those of the other three groups. Low or high dose rhEPO had no significant protective effects on body weight, renal functions, chronic fibrotic changes, but both doses reduced tubular and arteriolar changes, apoptotis and oxidative stress.
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Affiliation(s)
- Belde Kasap
- Department of Pediatrics, Faculty of Medicine, Dokuz Eylül University, Izmir, Turkey
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28
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Cavalcanti BC, Sombra CML, de Oliveira JHHL, Berlinck RGDS, de Moraes MO, Pessoa C. Cytotoxicity and genotoxicity of ingenamine G isolated from the Brazilian marine sponge Pachychalina alcaloidifera. Comp Biochem Physiol C Toxicol Pharmacol 2008; 147:409-15. [PMID: 18291725 DOI: 10.1016/j.cbpc.2008.01.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2007] [Revised: 12/20/2007] [Accepted: 01/04/2008] [Indexed: 11/19/2022]
Abstract
Marine sponges belonging to the order Haplosclerida are one of the more prolific sources of new natural products possessing various biological activities. The present study examined the cytotoxic and genotoxic potential of ingenamine G, an alkaloid isolated from the Brazilian marine sponge Pachychalina alcaloidifera. Ingenamine G displayed a moderate cytotoxic activity against human proliferating lymphocytes evaluated by the MTT assay (IC(50) 15 microg/mL). The hemolytic assay showed that ingenamine G cytotoxic activity was not related to membrane disruption. The comet assay and chromosome aberration analysis were applied to determine the genotoxic and clastogenic potential of ingenamine G, respectively. Cultured human lymphocytes were treated with 5, 10, 15 and 20 microg/mL of ingenamine G during the G(1), G(1)/S, S (pulses of 1 and 6 h), and G(2) phases of the cell cycle. All tested concentrations were cytotoxic, reduced significantly the mitotic index, and were clastogenic in all phases of the cell cycle, especially in S phase. While an increase in DNA-strand breaks was observed starting with the concentration corresponding to the IC(50). The presence of genotoxicity and polyploidy during interphase and mitosis, respectively, suggests that ingenamine G at high concentrations is clastogenic and indirectly affects the construction of mitotic fuse.
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Affiliation(s)
- Bruno Coêlho Cavalcanti
- Departamento de Fisiologia e Farmacologia, Universidade Federal do Ceará, CP 3157, CEP 60430-270, Fortaleza, CE, Brazil
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29
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Sarhan R, El-Azim SAA, Motawi TM, Hamdy MA. Protective Effect of Turmeric, Ginkgo biloba, Silymarin Separately or in Combination, on Iron-Induced Oxidative Stress and Lipid Peroxidation in Rats. INT J PHARMACOL 2007. [DOI: 10.3923/ijp.2007.375.384] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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30
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Schiar VPP, Dos Santos DB, Lüdtke DS, Vargas F, Paixão MW, Nogueira CW, Zeni G, Rocha JBT. Screening of potentially toxic chalcogens in erythrocytes. Toxicol In Vitro 2007; 21:139-45. [PMID: 17084588 DOI: 10.1016/j.tiv.2006.08.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2006] [Revised: 08/25/2006] [Accepted: 08/29/2006] [Indexed: 11/23/2022]
Abstract
Previous literature reports have demonstrated that a number of human diseases, including inflammation and cancer, can be caused by environmental and occupational exposure to toxic compounds, via DNA damage, protein modifications, or lipid peroxidation. The present study was undertaken to screen the toxicity of a variety of chalcogens using erythrocytes as a model of cell injury. The toxicity of these compounds was evaluated via quantification of hemolysis and lipid peroxidation. The present investigation shows that diphenyl ditelluride and phenyl tellurides are toxic to erythrocytes. The organoselenium compounds were not toxic to erythrocytes even when tested at high concentrations and with a hematocrit of 45%. The hemolytic effect of tellurides was not positively correlated with thiobarbituric acid-reactive substance (TBARS) production suggesting that lipid peroxidation is not involved in the hemolysis provoked by organotellurium compounds. The results suggest that chalcogen compounds may be toxic to human erythrocytes, depending on their structure.
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Affiliation(s)
- Viviane Patrícia P Schiar
- Departamento de Química, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, 97105-900 Santa Maria, RS, Brazil
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