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Jalali SM, Najafzadeh H, Mousavi SM. Comparative Effect of Silymarin and D-Penicillamine on Lead Induced Hemotoxicity and Oxidative Stress in Rat. IRANIAN JOURNAL OF TOXICOLOGY 2017. [DOI: 10.29252/arakmu.11.3.11] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Téllez-López MÁ, Mora-Tovar G, Ceniceros-Méndez IM, García-Lujan C, Puente-Valenzuela CO, Vega-Menchaca MDC, Serrano-Gallardo LB, Garza RG, Morán-Martínez J. EVALUATION OF THE CHELATING EFFECT OF METHANOLIC EXTRACT OF CORIANDRUM SATIVUM AND ITS FRACTIONS ON WISTAR RATS POISONED WITH LEAD ACETATE. AFRICAN JOURNAL OF TRADITIONAL, COMPLEMENTARY, AND ALTERNATIVE MEDICINES 2017; 14:92-102. [PMID: 28573226 PMCID: PMC5446471 DOI: 10.21010/ajtcam.v14i2.11] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Background: The rate of lead poisoning has decreased in recent years due to increased health control in industries that use this metal. However, it is still a public health problem worldwide. The use of various plants with chelating properties has been a topic of research today. In traditional medicine, it is said that Coriandrum sativum has chelating properties, but there is no scientific evidence to support this fact. The purpose of this research is to evaluate the chelating effect of methanol extract of coriander and its fractions on Wistar rats intoxicated with lead. Materials and Methods: In this research, male Wistar rats were poisoned with 50 mg/kg of lead acetate and treated with 50 mg/kg of methanol extract and its fractions. The extract and its fractions were administered to four treatment groups. Positive and negative controls were established. Hemoglobin, hematocrit and lead concentrations were analyzed; liver was evaluated histologically in control and treatment groups. Results: The methanol extract of coriander presented a LD50 >1000 mg/dL. The group administered with the methanol extract showed significant difference in the levels of hemoglobin and hematocrit compared to the negative control group. Lead concentration in treatment groups showed a decrease compared to the positive control. Histological evaluation of tissue showed less damage in groups administered with methanolic extract and its fractions compared to the positive control which presented structural alterations. Conclusion: Coriander extracts protect liver and lower lead concentration in rats intoxicated with lead in contrast to the positive control group.
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Affiliation(s)
- Miguel Ángel Téllez-López
- Facultad de Ciencias Químicas, Universidad Juárez del Estado de Durango. Articulo 123 S/N Fraccionamiento Filadelfia. Gómez Palacio Durango, C.P. 35010, México
| | - Gabriela Mora-Tovar
- Facultad de Ciencias Químicas, Universidad Juárez del Estado de Durango. Articulo 123 S/N Fraccionamiento Filadelfia. Gómez Palacio Durango, C.P. 35010, México
| | - Iromi Marlen Ceniceros-Méndez
- Facultad de Ciencias Químicas, Universidad Juárez del Estado de Durango. Articulo 123 S/N Fraccionamiento Filadelfia. Gómez Palacio Durango, C.P. 35010, México
| | - Concepción García-Lujan
- Facultad de Ciencias Químicas, Universidad Juárez del Estado de Durango. Articulo 123 S/N Fraccionamiento Filadelfia. Gómez Palacio Durango, C.P. 35010, México
| | - Cristo Omar Puente-Valenzuela
- Facultad de Ciencias Biológicas, Universidad Juárez del Estado de Durango. Artículo 123 S/N Fraccionamiento Filadelfia. Gómez Palacio Durango, C.P. 35010, México
| | - María Del Carmen Vega-Menchaca
- Facultad de Ciencias Químicas, Universidad Juárez del Estado de Durango. Articulo 123 S/N Fraccionamiento Filadelfia. Gómez Palacio Durango, C.P. 35010, México
| | - Luis Benjamín Serrano-Gallardo
- Facultad de Ciencias Químicas, Universidad Juárez del Estado de Durango. Articulo 123 S/N Fraccionamiento Filadelfia. Gómez Palacio Durango, C.P. 35010, México.,Departamento de Bioquímica y Farmacología, Centro de Investigación Biomédica, Facultad de Medicina, Universidad Autónoma de Coahuila, Unidad Torreón. Gregorio A. García 198 Sur, Torreón, Coahuila, C.P. 27000, México
| | - Rubén García Garza
- Departamento de Histología, Facultad de Medicina, Universidad Autónoma de Coahuila, Unidad Torreón. Morelos No. 900 Ote. Torreón, Coahuila. México. C.P. 27000, México
| | - Javier Morán-Martínez
- Departamento de Biología Celular y Ultra estructura, Centro de Investigación Biomédica, Facultad de Medicina, Universidad Autónoma de Coahuila, Unidad Torreón. Gregorio A. García 198 Sur, Torreón, Coahuila. México. C.P. 27000, México
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Jalali SM, Najafzadeh H, Bahmei S. Protective role of silymarin and D-penicillamine against lead-induced liver toxicity and oxidative stress. Toxicol Ind Health 2017; 33:512-518. [DOI: 10.1177/0748233716685660] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
This study was performed to assess hepatotoxicity and alterations in liver antioxidant defence in acute lead (Pb) exposure and the protective effects of silymarin in comparison to D-penicillamine in rats. Forty eight Albino rats were divided in eight groups and received the following treatments in a 10-day experiment – group 1: normal saline as control; group 2: 25-mg/kg Pb acetate, intraperitoneally (IP) for the last 5 days; group 3: 100-mg/kg D-penicillamine, IP for the last 5 days; group 4: 200-mg/kg silymarin, orally for 10 days; and groups 5, 6, 7 and 8: in addition to Pb, they received D-penicillamine, for the last 5 days, silymarin for 10 days, a combination of silymarin for 10 days and D-penicillamine for the last 5 days and silymarin for the last 5 days, respectively. Pb acetate exposure induced significant elevation in serum alkaline phosphatase (ALP), aspartate aminotransferase (AST) and alanine aminotransferase (ALT) enzyme activities in group 2 compared to control group. Significant reductions in serum total protein and albumin in all Pb-exposed groups and in serum glucose in groups 2, 6 and 8 were also observed. Liver tissue superoxide dismutase and glutathione peroxidase were significantly lower in groups 2 and 8 compared to control group. Silymarin pretreatment and D-penicillamine administration in groups 5, 7 and 8 could significantly lower ALP, ALT and AST and improve liver antioxidant enzymes. Thus, acute Pb exposure induced hepatotoxicity with suppression of liver antioxidant defence system and silymarin, as an antioxidant could alleviate this effect.
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Affiliation(s)
- Seyedeh Missagh Jalali
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - Hossein Najafzadeh
- Department of Basic Sciences, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - Sadegh Bahmei
- Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran
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Dolci GS, Rosa HZ, Barcelos RCS, Vey LT, Santos A, DallaVechia P, Bizzi C, Cunha MA, Baldisserotto B, Burger ME. Hypoxia acclimation and subsequent reoxygenation partially prevent Mn-induced damage in silver catfish. Comp Biochem Physiol C Toxicol Pharmacol 2017; 191:52-62. [PMID: 27645230 DOI: 10.1016/j.cbpc.2016.09.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Revised: 08/11/2016] [Accepted: 09/14/2016] [Indexed: 01/11/2023]
Abstract
This study investigated if hypoxia acclimation modifies the hematological and oxidative profiles in tissues of Mn-exposed silver catfish (Rhamdia quelen), and if such modifications persist upon subsequent reoxygenation. Silver catfish acclimated to hypoxia (~3mgL-1) for 10days and subsequently exposed to Mn (~8.1mgL-1) for additional 10days exhibited lower Mn accumulation in plasma, liver and kidney, even after reoxygenation, as compared to normoxia-acclimated fish. Hypoxia acclimation increased per se red blood cells count and hematocrit, suggesting adaptations under hypoxia, while the reoxygenation process was also related to increased hematocrit and hemoglobin per se. Fish exposed to Mn under normoxia for 20days showed decreased red blood cells count and hematocrit, while reoxygenation subsequent to hypoxia increased red blood cells count. Hypoxia acclimation also prevented Mn-induced oxidative damage, observed by increased reactive species generation and higher protein carbonyl levels in both liver and kidney under normoxia. Mn-exposed fish under hypoxia and after reoxygenation showed decreased plasma transaminases in relation to the normoxia group. Moreover, acclimation to hypoxia increased reduced glutathione levels, catalase activity and Na+/K+-ATPase activity in liver and kidney during Mn exposure, remaining increased even after reoxygenation. These findings show that previous acclimation to hypoxia generates physiological adjustments, which drive coordinated responses that ameliorate the antioxidant status even after reoxygenation. Such responses represent a physiological regulation of this teleost fish against oxygen restriction and/or Mn toxicity in order to preserve the stability of a particular tissue or system.
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Affiliation(s)
- G S Dolci
- Programa de Pós Graduação em Farmacologia, UFSM, Universidade Federal de Santa Maria (UFSM), Av. Roraima n° 1000, Cidade Universitária, Camobi, Santa Maria 97105-900, RS, Brazil
| | - H Z Rosa
- Departamento de Fisiologia e Farmacologia, UFSM, Universidade Federal de Santa Maria (UFSM), Av. Roraima n° 1000, Cidade Universitária, Camobi, Santa Maria 97105-900, RS, Brazil
| | - R C S Barcelos
- Programa de Pós Graduação em Farmacologia, UFSM, Universidade Federal de Santa Maria (UFSM), Av. Roraima n° 1000, Cidade Universitária, Camobi, Santa Maria 97105-900, RS, Brazil
| | - L T Vey
- Programa de Pós Graduação em Bioquímica Toxicológica, UFSM, Universidade Federal de Santa Maria (UFSM), Av. Roraima n° 1000, Cidade Universitária, Camobi, Santa Maria 97105-900, RS, Brazil
| | - A Santos
- Programa de Pós Graduação em Farmacologia, UFSM, Universidade Federal de Santa Maria (UFSM), Av. Roraima n° 1000, Cidade Universitária, Camobi, Santa Maria 97105-900, RS, Brazil
| | - P DallaVechia
- Programa de Pós-graduação em Química, UFSM, Universidade Federal de Santa Maria (UFSM), Av. Roraima n° 1000, Cidade Universitária, Camobi, Santa Maria 97105-900, RS, Brazil
| | - C Bizzi
- Programa de Pós-graduação em Química, UFSM, Universidade Federal de Santa Maria (UFSM), Av. Roraima n° 1000, Cidade Universitária, Camobi, Santa Maria 97105-900, RS, Brazil
| | - M A Cunha
- Programa de Pós Graduação em Farmacologia, UFSM, Universidade Federal de Santa Maria (UFSM), Av. Roraima n° 1000, Cidade Universitária, Camobi, Santa Maria 97105-900, RS, Brazil; Departamento de Fisiologia e Farmacologia, UFSM, Universidade Federal de Santa Maria (UFSM), Av. Roraima n° 1000, Cidade Universitária, Camobi, Santa Maria 97105-900, RS, Brazil
| | - B Baldisserotto
- Programa de Pós Graduação em Farmacologia, UFSM, Universidade Federal de Santa Maria (UFSM), Av. Roraima n° 1000, Cidade Universitária, Camobi, Santa Maria 97105-900, RS, Brazil; Departamento de Fisiologia e Farmacologia, UFSM, Universidade Federal de Santa Maria (UFSM), Av. Roraima n° 1000, Cidade Universitária, Camobi, Santa Maria 97105-900, RS, Brazil
| | - M E Burger
- Programa de Pós Graduação em Farmacologia, UFSM, Universidade Federal de Santa Maria (UFSM), Av. Roraima n° 1000, Cidade Universitária, Camobi, Santa Maria 97105-900, RS, Brazil; Departamento de Fisiologia e Farmacologia, UFSM, Universidade Federal de Santa Maria (UFSM), Av. Roraima n° 1000, Cidade Universitária, Camobi, Santa Maria 97105-900, RS, Brazil; Programa de Pós Graduação em Bioquímica Toxicológica, UFSM, Universidade Federal de Santa Maria (UFSM), Av. Roraima n° 1000, Cidade Universitária, Camobi, Santa Maria 97105-900, RS, Brazil.
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Sahin A, Iskender H, Terim KKA, Altinkaynak K, Hayirli A, Gonultas A, Kaynar O. The Effect of Humic Acid Substances on the Thyroid Function and Structure in Lead Poisoning. BRAZILIAN JOURNAL OF POULTRY SCIENCE 2016. [DOI: 10.1590/1806-9061-2016-0299] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Al-Rasheed N, Faddah L, Al-Rasheed N, Bassiouni YA, Hasan IH, Mahmoud AM, Mohamad RA, Yacoub HI. Protective Effects of Silymarin, Alone or in Combination with Chlorogenic Acid and/or Melatonin, Against Carbon Tetrachloride-induced Hepatotoxicity. Pharmacogn Mag 2016; 12:S337-45. [PMID: 27563222 PMCID: PMC4971954 DOI: 10.4103/0973-1296.185765] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
OBJECTIVE The aim of this study was to evaluate the hepatoprotective effects of silymarin (SIL), alone and combined with chlorogenic acid (CA) and/or melatonin (ME), using a rat model of carbon tetrachloride (CCl4)-induced injury. MATERIALS AND METHODS Hepatotoxicity was induced by a single dose of CCl4 (1 ml/kg, IP). One day after, rats were received SIL (200 mg/kg) alone or in combination with CA (60 mg/kg) and/or ME (20 mg/kg) for 21 days. RESULTS SIL significantly decreased serum alanine aminotransferase, inflammatory cytokines, and vascular endothelial growth factor levels. Histological alterations, fibrogenesis, oxidative DNA damage, inflammatory mediators, and caspase-3 activity were significantly attenuated in SIL treated CCl4-intoxicated rats. On the other hand, cytochrome P450 2E1 activity showed a significant decrease in the liver of CCl4-intoxicated rats, an effect that was reversed following treatment with SIL. All beneficial effects of SIL were markedly potentiated when combined with CA and/or ME. CONCLUSIONS These data indicate that SIL, alone and combined with CA and/or ME, protected the liver against CCl4-induced hepatotoxicity via attenuating inflammation, oxidative DNA damage, apoptosis, and fibrotic changes. The significantly intensified hepatoprotective effects of SIL when combined with both CA and ME suggest a possible synergism. These synergistic effects need to be further confirmed using detailed studies. SUMMARY Silymarin, chlorogenic acid and melatonin possess in vivo hepatoprotective activitySilymarin, chlorogenic acid and melatonin attenuate fibrogenesis, oxidative DNA damage, inflammation and apoptosisChlorogenic acid and melatonin enhance the hepatoprotective effect of silymarin. Abbreviations used: SIL: silymarin, CA: chlorogenic acid, ME: melatonin, CCl4: carbon tetrachloride, CYP2E1, cytochrome P450 2E1, ALT: alanine aminotransferase, IL-6: interleukin 6, IFN-γ: interferon gamma, VEGF: vascular endothelial growth factor, TNF-α: tumor necrosis factor alpha, CRP: C-reactive protein, 8-OxodG: 8-Oxo-2'-deoxyguanosine, TGF-B1: transforming growth factor beta 1, HSCs: hepatic stellate cells.
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Affiliation(s)
- Nouf Al-Rasheed
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Laila Faddah
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Nawal Al-Rasheed
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia; Department of Pharmaceutical Sciences, College of Pharmacy, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Yieldez A Bassiouni
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia; Department of Pharmacology, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Iman H Hasan
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Ayman M Mahmoud
- Department of Zoology, Division of Physiology, Faculty of Science, Beni-Suef University, Beni-Suef, Egypt
| | - Raeesa A Mohamad
- Department of Anatomy, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Hazar I Yacoub
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
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Khaldoun Oularbi H, Richeval C, Lebaili N, Zerrouki-Daoudi N, Baha M, Djennas N, Allorge D. Ameliorative effect of vitamin C against hepatotoxicity induced by emamectin benzoate in rats. Hum Exp Toxicol 2016; 36:709-717. [PMID: 27461011 DOI: 10.1177/0960327116661022] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
In the present study, we aimed to assess the potential protective effect of ascorbic acid (AA) against emamectin benzoate (EMB)-induced hepatotoxicity. For this purpose, biochemical, histopathological and analytical investigations were performed. Male Wistar rats were distributed into three groups, that is, a control group, an EMB group given 10 mg EMB/kg body weight (BW) by gavage and an EMB + AA group given 10 mg EMB/kg BW and vitamin C intraperitoneally (200 mg/kg). The duration of the treatment was 28 days and the duration of the study was 42 days. There was a statistically significant increase of all hepatic biomarkers, that is, aspartate aminotransferase, alanine aminotransferase and gamma-glutamyltransferase activities, and glycemia, in EMB-treated group when compared with the control group. Light microscopic observations revealed variable signs of hepatotoxicity in the EMB group, which were represented by alteration of normal hepatic architecture, inflammatory cell infiltration, hepatocellular steatosis and foci of necrosis at 28 and 42 days post-treatment. However, co-treatment with vitamin C reduced EMB-related liver toxicity and diminished the abnormal biochemical and architectural damage. Emamectin B1a and B1b residues were detectable in all plasma samples of treated rats at 14, 21 and 28 days of treatment. The drug liver tissue concentration was significantly lower in EMB + AA group compared with EMB group at 28 and 42 days. In conclusion, the findings of the present study clearly indicate a significant protective action of vitamin C against EMB hepatotoxicity.
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Affiliation(s)
- H Khaldoun Oularbi
- 1 Département de Biologie et Physiologie cellulaire, faculté des Sciences de la Nature et de la Vie, Université Blida 1, BP 270, route Soumaa, Blida, Algeria.,2 Laboratoire de Recherche d'Éco-Biologie Animale, École Normale Supérieure de Kouba Bachir El Ibrahimi, Algiers, Algeria
| | - C Richeval
- 3 CHU Lille, Unité Fonctionnelle de Toxicologie, F-59000 Lille, France
| | - N Lebaili
- 2 Laboratoire de Recherche d'Éco-Biologie Animale, École Normale Supérieure de Kouba Bachir El Ibrahimi, Algiers, Algeria
| | - N Zerrouki-Daoudi
- 4 Laboratoire des Ressorces Naturelles, Universite Mouloud Mammeri, Tizi-Ouzou, Algeria
| | - M Baha
- 2 Laboratoire de Recherche d'Éco-Biologie Animale, École Normale Supérieure de Kouba Bachir El Ibrahimi, Algiers, Algeria
| | - N Djennas
- 5 Laboratoire D'anatomie Pathologie CHRU Parnet, Alger, Algeria
| | - D Allorge
- 2 Laboratoire de Recherche d'Éco-Biologie Animale, École Normale Supérieure de Kouba Bachir El Ibrahimi, Algiers, Algeria.,6 Univ. Lille, EA 4483 - IMPECS - IMPact de l'Environnement Chimique sur la Santé humaine, F-59000 Lille, France
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Kelany ME, Abdallah MA. Protective effects of combined β-caryophyllene and silymarin against ketoprofen-induced hepatotoxicity in rats. Can J Physiol Pharmacol 2016; 94:739-744. [PMID: 27124106 DOI: 10.1139/cjpp-2015-0607] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2025]
Abstract
Ketoprofen (Ket), widely utilized in treatment of many inflammatory disorders, is found to induce liver toxicity especially with overdose. This study aimed to evaluate the possible protective effects of concomitant β-caryophyllene (Cary) and silymarin (Sily) against Ket-induced hepatotoxicity in rats. Forty adult male albino rats were divided into 5 groups (each n = 8): the control group received distilled water for 6 weeks; the Ket-treated group received distilled water for 5 weeks and Ket in a dose of 8 mg·kg(-1)·day(-1) p.o. for the 6th week; the Cary + Ket treated group received Cary in a dose of 200 mg·kg(-1)·day(-1) orally for 6 weeks and Ket for the 6th week; the Sily + Ket treated group received Sily in the dose of 150 mg·kg(-1)·day(-1) for 6 weeks and Ket for the 6th week; and the Cary + Sily + Ket treated group received Sily and Cary for 6 weeks and Ket for the 6th week. At end of the experiment, serum ALT, AST, and albumin and liver total antioxidant capacity (t.TAC) and malondialdehyde (t.MDA) were measured in all rats. Ket increased serum ALT and AST and t.MDA and decreased t.TAC. Cary and Sily improved these changes. Combined Cary and Sily restored these liver changes to nearly normal. Combined Cary and Sily is hepatoprotective, with the ability to scavenge oxidants against Ket-induced hepatotoxicity in rats.
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Ayoka AO, Ademoye AK, Imafidon CE, Ojo EO, Oladele AA. Aqueous Extract of Allium sativum (Linn.) Bulbs Ameliorated Pituitary-Testicular Injury and Dysfunction in Wistar Rats with Pb-Induced Reproductive Disturbances. Open Access Maced J Med Sci 2016; 4:200-12. [PMID: 27335588 PMCID: PMC4908733 DOI: 10.3889/oamjms.2016.039] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Revised: 02/28/2016] [Accepted: 02/29/2016] [Indexed: 12/15/2022] Open
Abstract
AIM To determine the effects of aqueous extract of Allium sativum bulbs (AEASAB) on pituitary-testicular injury and dysfunction in Wistar rats with lead-induced reproductive disturbances. MATERIALS AND METHODS Male Wistar rats were divided into 7 groups such that the control group received propylene glycol at 0.2 ml/100 g intraperitoneally for 10 consecutive days, the toxic group received lead (Pb) alone at 15 mg/kg/day via intraperitoneal route for 10 days while the treatment groups were pretreated with lead as the toxic group after which they received graded doses of the extract at 50, 100 and 200 mg/kg/day via oral route for 28 days. RESULTS Pb administration induced significant deleterious alterations in the antioxidant status of the brain and testis, sperm characterization (counts, motility and viability) as well as reproductive hormones (FSH, LH and testosterone) of exposed rats (p < 0.05). These were significantly reversed in the AEASAB-treated groups (p < 0.05). Also, there was marked improvement in the Pb-induced vascular congestion and cellular loss in the pituitary while the observed Pb-induced severe testicular vacuolation was significantly reversed in the representative photomicrographs, following administration of the extract. CONCLUSION AEASAB treatment ameliorated the pituitary-testicular injury and dysfunction in Wistar rats with Pb-Induced reproductive disturbances.
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Affiliation(s)
- Abiodun O. Ayoka
- Department of Physiological Sciences, Obafemi Awolowo University, Ile-Ife, Osun State, Nigeria
| | - Aderonke K. Ademoye
- Department of Physiological Sciences, Obafemi Awolowo University, Ile-Ife, Osun State, Nigeria
| | - Christian E. Imafidon
- Department of Physiological Sciences, Obafemi Awolowo University, Ile-Ife, Osun State, Nigeria
| | - Esther O. Ojo
- Department of Physiological Sciences, Obafemi Awolowo University, Ile-Ife, Osun State, Nigeria
| | - Ayowole A. Oladele
- Department of Medical Laboratory Science, College of Medicine, Afe Babalola University, Ado-Ekiti, Ekiti State, Nigeria
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Ansarihadipour H, Bayatiani M. Influence of Electromagnetic Fields on Lead Toxicity: A Study of Conformational Changes in Human Blood Proteins. IRANIAN RED CRESCENT MEDICAL JOURNAL 2016; 18:e28050. [PMID: 27651951 PMCID: PMC5022290 DOI: 10.5812/ircmj.28050] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/18/2015] [Revised: 04/04/2015] [Accepted: 04/13/2015] [Indexed: 11/23/2022]
Abstract
Background Electromagnetic fields (EMF) are associated with oxidative stress, which is in turn associated with reactive oxygen species (ROS), anemia, and hypoxia. Objectives This study focused on the synergistic effects of lead ions and EMF on oxidative modifications in hemoglobin (Hb) and plasma proteins. Patients and Methods In this experimental study, the blood samples were obtained from age- and sex-matched healthy subjects at Arak University of Medical Sciences, Arak, Iran. The collected bloods were prepared as 55 samples and then divided into different groups for incubating with 0 to 100 uM of lead ions in 2 mT and 50 Hz of EMF for 120 minutes. The carbonyl group was determined to be an oxidative biomarker in plasma proteins. The ferric reducing ability of plasma (FRAP) was considered to be an antioxidant power of human plasma. The conformational changes in hemoglobin, met-Hb, and hemichrome were considered to be oxidative markers in red blood cells. To predict the factors affecting the oxyHb, the artificial neural network (MLP: 11,2,2,1) in SPSS software was applied. Results The test subjects showed increased concentrations of metHb (1.8 ± 0.19 vs. 1.36 ± 0.25) and hemichrome (6.01 ± 0.57) in relation to the control subjects. The decreased absorbance at 340 nm (0.88 ± 0.09 vs. 1.07 ± 0.08) demonstrated the reduced interaction between the globin chain and the heme ring. The decreased absorbance at 420 nm (Soret band) (2.96 ± 0.13) and the increased absorbance at 630 nm (0.07 ± 0.002 vs. 0.064 ± 0.005) indicated the conversion of oxyHb to metHb, which confirmed the oxidative damage to the erythrocytes. The linear regression analysis showed significant positive correlations between lead concentration and the percentage of plasma carbonyl content (R2 = 0.96), the relation of plasma carbonyl content to Hb absorbance at 630 nm (R2 = 0.97), and the relation of plasma carbonyl content to metHb concentration (R2 = 0.95) after 120 minutes incubation with lead ions in 20 millitesla and 50 hertz EMF. The artificial neural network analysis showed the significant importance of hemichrome, PCO, metHb, and lead concentration to the oxyHb content of erythrocytes. Conclusions Lead contamination in the presence of an EMF exacerbates the oxidative damage to plasma proteins as well as the conformational changes in Hb. An artificial neural network can be used as a predictive tool for the oxidative danger posed to workers in industrial fields, battery manufacturing companies, and power plants.
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Affiliation(s)
- Hadi Ansarihadipour
- Molecular and Medicine Research Center, Arak University of Medical Sciences, Arak, IR Iran
- Corresponding Author: Hadi Ansarihadipour, Molecular and Medicine Research Center, Arak University of Medical Sciences, Arak, IR Iran. Tel: +98-8634173502, Fax: +98-8634173529, E-mail:
| | - Mohamadreza Bayatiani
- Department of Radiotherapy, Faculty of Paramedicine, Arak University of Medical Sciences, Arak, IR Iran
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Ansar S, Hamed S, AlGhosoon HT, AlSaedan RA, Iqbal M. The protective effect of rutin against renal toxicity induced by lead acetate. TOXIN REV 2016. [DOI: 10.3109/15569543.2016.1155623] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Almansour M, Sajti L, Melhim W, Jarrar BM. Ultrastructural hepatocytic alterations induced by silver nanoparticle toxicity. Ultrastruct Pathol 2016; 40:92-100. [PMID: 26934218 DOI: 10.3109/01913123.2016.1150377] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Silver nanoparticles (SNPs) are widely used in nanomedicine and consuming products with potential risk to human health. While considerable work was carried out on the molecular, biochemical, and physiological alterations induced by these particles, little is known of the ultrastructural pathological alterations that might be induced by nanosilver materials. The aim of the present work is to investigate the hepatocyte ultrastructural alterations that might be induced by SNP exposure. Male rats were subjected to a daily single dose (2 mg/kg) of SNPs (15-35 nm diameter) for 21 days. Liver biopsies from all rats under study were processed for transmission electron microscopy examination. The following hepatic ultrastructural alterations were demonstrated: mitochondria swelling and crystolysis, endoplasmic reticulum disruption, cytoplasmic vacuolization, lipid droplets accumulation, glycogen depletion, karyopyknosis, apoptosis, sinusoidal dilatation, Kupffer cells activation, and myelin figures formation. The current findings may indicate that SNPs can induce hepatocyte organelles alteration, leading to cellular damage that may affect the function of the liver. These findings might indicate that SNPs potentially trigger heptocyte ultrastructural alterations that may affect the function of the liver with potential risk on human health in relation to numerous applications of these particles. More work is needed to elucidate probable ultrastructural alterations in the vital organs that might result from nanosilver toxicity.
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Affiliation(s)
- Mansour Almansour
- a Department of Zoology , College of Science, King Saud University , Saudi Arabia
| | - Laszlo Sajti
- b Nanotechnology Department , Laser Zentrum-Hannover , Hannover , Germany
| | - Walid Melhim
- c Electron Microscopy Unit , College of Medicine, King Faisal University , Saudi Arabia
| | - Bashir M Jarrar
- d Department of Biological Sciences , College of Science, Jerash University , Jordan
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Carocci A, Catalano A, Lauria G, Sinicropi MS, Genchi G. Lead Toxicity, Antioxidant Defense and Environment. REVIEWS OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2016; 238:45-67. [PMID: 26670034 DOI: 10.1007/398_2015_5003] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Environmental and occupational exposure to a large number of chemicals occurs at various stages throughout human life. Many of these are devoid of toxicity, but some could pose a significant health risk, i.e. the exposure to environmental xenobiotic metals as lead, mercury (Sinicropi et al. 2010a; Carocci et al. 2014), cadmium, etc. In particular, lead has long been a widespread public concern (Basha and Reddy 2010). Lead is one of the earliest heavy metals discovered by men. Due to its unique properties, as low melting point, softness, malleability, ductility, and resistance to corrosion, men have used lead for the last 5000 years in a wide range of applications.
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Affiliation(s)
- Alessia Carocci
- Dipartimento di Farmacia-Scienze del Farmaco, Università degli Studi di Bari "A. Moro", 70125, Bari, Italy
| | - Alessia Catalano
- Dipartimento di Farmacia-Scienze del Farmaco, Università degli Studi di Bari "A. Moro", 70125, Bari, Italy
| | - Graziantonio Lauria
- Dipartimento di Farmacia e Scienze della Salute e della Nutrizione, Università della Calabria, 87036 Arcavacata di Rende, Cosenza, Italy
| | - Maria Stefania Sinicropi
- Dipartimento di Farmacia e Scienze della Salute e della Nutrizione, Università della Calabria, 87036 Arcavacata di Rende, Cosenza, Italy.
| | - Giuseppe Genchi
- Dipartimento di Farmacia e Scienze della Salute e della Nutrizione, Università della Calabria, 87036 Arcavacata di Rende, Cosenza, Italy.
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t-BHQ Provides Protection against Lead Neurotoxicity via Nrf2/HO-1 Pathway. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2015; 2016:2075915. [PMID: 26798413 PMCID: PMC4698940 DOI: 10.1155/2016/2075915] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/16/2015] [Accepted: 10/11/2015] [Indexed: 12/30/2022]
Abstract
The neurotoxicity of lead has been well established, and oxidative stress is strongly associated with lead-induced neurotoxicity. Nrf2 is important for protection against oxidative stress in many disease models. We applied t-BHQ, which is an Nrf2 activator, to investigate the possible role of Nrf2 in the protection against lead neurotoxicity. t-BHQ significantly attenuated the oxidative stress in developmental rats by decreasing MDA level, as well as by increasing SOD activity and GSH content, in the hippocampus and frontal cortex. Furthermore, neuronal apoptosis was detected by Nissl staining, and Bax expression was inhibited in the t-BHQ-treated group. Results showed that t-BHQ suppressed ROS production and caspase 3/7 activity but increased intracellular GSH content, in SH-SY5Y cells under lead exposure. Moreover, in vivo and in vitro, t-BHQ enhanced the nuclear translocation of Nrf2 and binding to ARE areas but did not induce Nrf2 transcription. These phenomena were confirmed using RT-PCR, EMSA, Western blot, and immunofluorescence analyses. Subsequent upregulation of the expression of HO-1, NQO1, and GCLC was observed. However, knockdown of Nrf2 or HO-1 adversely affected the protective effects of t-BHQ against lead toxicity in SH-SY5Y cells. Thus, t-BHQ can protect against lead neurotoxicity, depending on the Nrf2/HO-1 pathway.
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Hussein SA, Hassanein MRR, Amin A, Hussein AHM. Alpha-Lipoic Acid Protects Rat Kidney Against Oxidative Stress-Mediated DNA Damage and Apoptosis Induced by Lead. ACTA ACUST UNITED AC 2015. [DOI: 10.3923/ajbmb.2016.1.14] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Kim HC, Jang TW, Chae HJ, Choi WJ, Ha MN, Ye BJ, Kim BG, Jeon MJ, Kim SY, Hong YS. Evaluation and management of lead exposure. Ann Occup Environ Med 2015; 27:30. [PMID: 26677413 PMCID: PMC4681084 DOI: 10.1186/s40557-015-0085-9] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2015] [Accepted: 12/09/2015] [Indexed: 01/12/2023] Open
Abstract
Lead, which is widely used in industry, is a common element found in low concentrations in the Earth's crust. Implementations to reduce environmental lead concentrations have resulted in a considerable reduction of lead levels in the environment (air) and a sustained reduction in the blood lead levels of the average citizen. However, people are still being exposed to lead through a variety of routes in everyday commodities. Lead causes health problems such as toxicity of the liver, kidneys, hematopoietic system, and nervous system. Having a carcinogenic risk as well, the IARC classifies inorganic lead compounds as probably carcinogenic to humans (Group 2A). Occupational lead poisonings have decreased due to the efforts to reduce the lead concentrations in the working environment. In contrast, health hazards associated with long-term environmental exposure to low concentrations of lead have been reported steadily. In particular, chronic exposure to low concentrations of lead has been reported to induce cognitive behavioral disturbances in children. It is almost impossible to remove lead completely from the human body, and it is not easy to treat health hazards due to lead exposure. Therefore, reduction and prevention of lead exposure are very important. We reviewed the toxicity and health hazards, monitoring and evaluation, and management of lead exposure.
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Affiliation(s)
- Hwan-Cheol Kim
- />Department of Occupational & Environmental Medicine, Inha University Hospital, 27, Inhang-Ro, Jung-Gu, Incheon, Republic of Korea
| | - Tae-Won Jang
- />Department of Occupational and Environmental Medicine, College of Medicine, The Catholic University, 222, Banpo-Daero, Seocho-gu, Seoul South Korea
| | - Hong-Jae Chae
- />Department of Occupational and Environmental Medicine, KS Hospital, 220, Wangbeodeul-ro, Gwangsan-gu, Gwangju, South Korea
| | - Won-Jun Choi
- />Department of Occupational & Environmental Medicine, Gachon University Gil Medical Center, 21, Namdong-daero 774beon-gil, Namdong-gu, Incheon, South Korea
| | - Mi-Na Ha
- />Department of Preventive Medicine, College of Medicine, Dankook University, 119, Dandae-ro, Dongnam-gu, Cheonan-si, Chungcheongnam-do South Korea
| | - Byeong-Jin Ye
- />Department of Occupational and Environmental Medicine, Dong-A University Hospital, 26, Daesingongwon-ro, Seo-gu, Busan, South Korea
| | - Byoung-Gwon Kim
- />Department of Preventive Medicine, Collage of Medicine, Dong-A University, 32, Daesingongwon-ro, Seo-gu, Busan, South Korea
| | - Man-Joong Jeon
- />Department of Occupational & Environmental Medicine, Collage of Medicine, Young-Nam University, Daegu, Republic of Korea
| | - Se-Yeong Kim
- />Department of Occupational & Environmental Medicine & Institute of Environmental and Occupational Medicine, Pusan Paik Hospital, InJe University, 75, Bokji-ro, Busanjin-gu, Busan, South Korea
| | - Young-Seoub Hong
- />Department of Preventive Medicine, Collage of Medicine, Dong-A University, 32, Daesingongwon-ro, Seo-gu, Busan, South Korea
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Abdel-Moneim AM, El-Toweissy MY, Ali AM, Awad Allah AAM, Darwish HS, Sadek IA. Curcumin Ameliorates Lead (Pb(2+))-Induced Hemato-Biochemical Alterations and Renal Oxidative Damage in a Rat Model. Biol Trace Elem Res 2015; 168:206-20. [PMID: 25947936 DOI: 10.1007/s12011-015-0360-1] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2015] [Accepted: 04/29/2015] [Indexed: 02/08/2023]
Abstract
This study aims to evaluate the protective role of curcumin (Curc) against hematological and biochemical changes, as well as renal pathologies induced by lead acetate [Pb (CH3COO)2·3H2O] treatment. Male albino rats were intraperitoneally treated with Pb(2+) (25 mg of lead acetate/kg b.w., once a day) alone or in combination with Curc (30 mg of Curc/kg b.w., twice a day) for 7 days. Exposure of rats to Pb(2+) caused significant decreases in hemoglobin (Hb) content, hematocrit (Ht) value, and platelet (Plt) count, while Pb(2+)-related leukocytosis was accompanied by absolute neutrophilia, monocytosis, lymphopenia, and eosinopenia. A significant rise in lipid peroxidation (LPO) and a marked drop of total antioxidant capacity (TAC) were evident in the kidney, liver, and serum of Pb(2+) group compared to that of control. Furthermore, significantly high levels of total cholesterol (TC), triglycerides (TGs), and low-density lipoprotein cholesterol (LDL-C), and a sharp drop in serum high-density lipoprotein (HDL-C) level were also seen in blood after injection of Pb(2+). Additionally, hepatorenal function tests were enhanced. Meanwhile, Pb(2+) produced marked histo-cytological alterations in the renal cortex. Co-administration of Curc to the Pb(2+)-treated animals restored most of the parameters mentioned above to near-normal levels/features. In conclusion, Curc appeared to be a promising agent for protection against Pb(2+)-induced toxicity.
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Affiliation(s)
- Ashraf M Abdel-Moneim
- Department of Biological Sciences, Faculty of Science, King Faisal University, Al-Hassa, PO box 380, Saudi Arabia.
- Department of Zoology, Faculty of Science, Alexandria University, Alexandria, Egypt.
| | - Mona Y El-Toweissy
- Department of Zoology, Faculty of Science, Alexandria University, Alexandria, Egypt
- Preparatory Year Program, King Faisal University, Al-Hassa, Saudi Arabia
| | - Awatef M Ali
- Department of Zoology, Faculty of Science, Alexandria University, Alexandria, Egypt
| | - Abd Allah M Awad Allah
- Biology and Geology Department, Faculty of Education, Alexandria University, Alexandria, Egypt
| | - Hanaa S Darwish
- Biology and Geology Department, Faculty of Education, Alexandria University, Alexandria, Egypt
| | - Ismail A Sadek
- Department of Zoology, Faculty of Science, Alexandria University, Alexandria, Egypt
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The role of Nrf2 in protection against Pb-induced oxidative stress and apoptosis in SH-SY5Y cells. Food Chem Toxicol 2015; 86:191-201. [PMID: 26498409 DOI: 10.1016/j.fct.2015.10.009] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Revised: 10/06/2015] [Accepted: 10/16/2015] [Indexed: 11/21/2022]
Abstract
Lead exerts severe adverse effects on the nervous system in which oxidative stress might mediate impairments. In this study, we focused on Nrf2, which has been identified to significantly influence the protection of a cellular system against many xenobiotic compounds. We found that PbAc exhibited neurotoxicity mainly through oxidant-based processes and could be inhibited by NAC and DPI in SH-SY5Y cells. As a defense response, Nrf2 was activated when exposed to PbAc, thereby inducing a rapid increase in Nrf2 nuclear accumulation, as well as Nrf2-ARE binding activities in a ROS-dependent manner. Analysis of Nrf2-regulated gene expression and protein showed that PbAc could induce the mRNA transcription of HO-1, GSTα1, GCLM, GCLC, and NQO1, as well as the protein expression of HO-1 and γ-GCS. The responses of these genes to PbAc were regulated by Nrf2. Silencing Nrf2 expression in SH-SY5Y cells inhibited PbAc-induced gene transcription and protein expression. Overexpression of Nrf2 led to decreased ROS production and cell apoptosis, as well as increased cell viability under PbAc exposure. These results indicated that the Nrf2-ARE system exhibited a protective role in Pb-induced neurotoxicity, providing potential therapeutic strategies for the prevention and treatment of Pb-related diseases.
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Polley N, Saha S, Adhikari A, Banerjee S, Darbar S, Das S, Pal SK. Safe and symptomatic medicinal use of surface-functionalized Mn3O4 nanoparticles for hyperbilirubinemia treatment in mice. Nanomedicine (Lond) 2015; 10:2349-63. [DOI: 10.2217/nnm.15.83] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Aim: Testing the potential of citrate-capped Mn3O4 nanoparticles (NPs) as a therapeutic agent for alternative rapid treatment of hyperbilirubinemia through direct removal of bilirubin (BR) from blood in mice. Materials & methods: NPs were synthesized and the mechanism of BR degradation in presence and absence of biological macromolecules were characterized in vitro. To test the in vivo BR degradation ability of NPs, CCl4-intoxicated mice were intraperitoneally injected with NPs. Results: We demonstrated ultrahigh efficacy of the NPs in symptomatic treatment of hyperbilirubinemia for rapid reduction of BR in mice compared with conventional medicine silymarin without any toxicological implications. Conclusion: These findings may pave the way for practical clinical use of the NPs as safe medication of hyperbilirubinemia in human subjects.
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Affiliation(s)
- Nabarun Polley
- Department of Chemical, Biological & Macromolecular Sciences, S N Bose National Centre for Basic Sciences, Block JD, Sector III, Salt Lake, Kolkata 700 098, India
| | - Srimoyee Saha
- Department of Physics, Jadavpur University, 188, Raja Subodh Chandra Mullick Road, Jadavpur, Kolkata 700032, India
| | - Aniruddha Adhikari
- Department of Chemical, Biological & Macromolecular Sciences, S N Bose National Centre for Basic Sciences, Block JD, Sector III, Salt Lake, Kolkata 700 098, India
| | - Somtirtha Banerjee
- Department of Physics, Jadavpur University, 188, Raja Subodh Chandra Mullick Road, Jadavpur, Kolkata 700032, India
| | - Soumendra Darbar
- Research & Development Division, Dey's Medical Stores (Mfg.) Ltd, 62, Bondel Road, Ballygunge, Kolkata 700019, India
| | - Sukhen Das
- Department of Physics, Jadavpur University, 188, Raja Subodh Chandra Mullick Road, Jadavpur, Kolkata 700032, India
| | - Samir Kumar Pal
- Department of Chemical, Biological & Macromolecular Sciences, S N Bose National Centre for Basic Sciences, Block JD, Sector III, Salt Lake, Kolkata 700 098, India
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Karamian R, Komaki A, Salehi I, Tahmasebi L, Komaki H, Shahidi S, Sarihi A. Vitamin C reverses lead-induced deficits in hippocampal synaptic plasticity in rats. Brain Res Bull 2015; 116:7-15. [DOI: 10.1016/j.brainresbull.2015.05.004] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2014] [Revised: 04/11/2015] [Accepted: 05/08/2015] [Indexed: 12/11/2022]
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Alcaraz-Contreras Y, Mendoza-Lozano RP, Martínez-Alcaraz ER, Martínez-Alfaro M, Gallegos-Corona MA, Ramírez-Morales MA, Vázquez-Guevara MA. Silymarin and dimercaptosuccinic acid ameliorate lead-induced nephrotoxicity and genotoxicity in rats. Hum Exp Toxicol 2015; 35:398-403. [PMID: 26078282 DOI: 10.1177/0960327115591373] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
We studied the effect of silymarin and dimercaptosuccinic acid (DMSA), a chelating agent that was administered individually or in combination against lead (Pb) toxicity in rats. Wistar rats (200 ± 20) were randomly divided into five groups. Group A served as a control. Groups B-E were exposed to 2000 ppm of lead acetate in drinking water for 8 weeks. Group B served as a positive control. Group C received silymarin (100 mg kg(-1) orally) for 8 weeks. Group D received DMSA (75 mg kg(-1) orally) once daily for the last 5 days of treatment. Group E received DMSA and silymarin as groups C and D, respectively. The effect of Pb was evaluated and accordingly the treatments on blood lead levels (BLLs), renal system, and genotoxic effects were calculated using comet assay. The BLLs were significantly increased following the exposition of lead acetate. The administration of silymarin and DMSA provided reduction in BLLs. Silymarin and DMSA provided significant protection on the genotoxic effect of Pb. The toxic effect of Pb on kidneys was also studied. Our data suggest that silymarin and DMSA improve the renal histopathological lesions.
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Affiliation(s)
- Y Alcaraz-Contreras
- División de Ciencias Naturales y Exactas, Departamento de Farmacia, Universidad de Guanajuato, Guanajuato, México
| | - R P Mendoza-Lozano
- División de Ciencias Naturales y Exactas, Departamento de Farmacia, Universidad de Guanajuato, Guanajuato, México
| | - E R Martínez-Alcaraz
- División de Ciencias Naturales y Exactas, Departamento de Farmacia, Universidad de Guanajuato, Guanajuato, México
| | - M Martínez-Alfaro
- División de Ciencias Naturales y Exactas, Departamento de Farmacia, Universidad de Guanajuato, Guanajuato, México
| | | | - M A Ramírez-Morales
- División de Ciencias Naturales y Exactas, Departamento de Farmacia, Universidad de Guanajuato, Guanajuato, México
| | - M A Vázquez-Guevara
- División de Ciencias Naturales y Exactas, Departamento de Química, Universidad de Guanajuato, Guanajuato, México
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Patnaik R, Padhy RN. Probit analysis of comparative assays on toxicities of lead chloride and lead acetate to in vitro cultured human umbilical cord blood lymphocytes. Interdiscip Toxicol 2015; 8:35-43. [PMID: 27486358 PMCID: PMC4961924 DOI: 10.1515/intox-2015-0007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2014] [Revised: 03/08/2015] [Accepted: 03/16/2015] [Indexed: 11/16/2022] Open
Abstract
This work describes that cytotoxicity of lead chloride and lead acetate to in vitro cultured lymphocytes from human umbilical cord blood, using four monitoring methods namely, trypan blue staining, acridine orange/ethidium bromide staining, 3-[4,5-dimethylthiazol-2-yl] 2,5-diphenyl tetrazolium bromide (MTT) and neutral red uptake assays; lead genotoxicity to lymphocytes was monitored by comet assay. The MIC value in each method was invariably 300 mg/L for PbCl2. Lethal concentration25 (LC25) values were almost in an agreeable range: 691.83 to 831.76 mg/L; LC50 values in each method were almost in the range: 1174.9 to 1348.9 mg/L; LC100 values were in the range: 3000 to 3300 mg/L, for lead chloride. Similarly, The MIC value in each method were invariably 150 mg/L; LC25 values were almost in the range: 295.12 to 371.53 mg/L; LC50 values were in the range: 501.18 to 588.84 mg/L; LC100 value was 1500 mg/L in all assays, for lead acetate. The comet assay also indicated that the LC100 values were 3300 mg/L lead chloride and 1500 mg/L lead acetate. Thus, both cytotoxicity and genotoxicity were recorded at 3300 mg/L lead chloride and 1500 mg/L lead acetate with lymphocytes.
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Affiliation(s)
- Rajashree Patnaik
- Central Research Laboratory, IMS & Sum Hospital, Siksha 'O' Anusandhan University, Kalinga Nagar, Bhubaneswar, Odisha, India
| | - Rabindra N Padhy
- Central Research Laboratory, IMS & Sum Hospital, Siksha 'O' Anusandhan University, Kalinga Nagar, Bhubaneswar, Odisha, India
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Zhang J, Yan C, Wang S, Hou Y, Xue G, Zhang L. Chrysophanol attenuates lead exposure-induced injury to hippocampal neurons in neonatal mice. Neural Regen Res 2014; 9:924-30. [PMID: 25206913 PMCID: PMC4146226 DOI: 10.4103/1673-5374.133141] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/25/2014] [Indexed: 11/16/2022] Open
Abstract
Previous studies have shown that chrysophanol protects against learning and memory impairments in lead-exposed adult mice. In the present study, we investigated whether chrysophanol can alleviate learning and memory dysfunction and hippocampal neuronal injury in lead-exposed neonatal mice. At the end of lactation, chrysophanol (0.1, 1.0, 10.0 mg/kg) was administered to the neonatal mice by intraperitoneal injection for 15 days. Chrysophanol significantly alleviated injury to hippocampal neurons and improved learning and memory abilities in the lead-poisoned neonatal mice. Chrysophanol also significantly decreased lead content in blood, brain, heart, spleen, liver and kidney in the lead-exposed neonatal mice. The levels of malondialdehyde in the brain, liver and kidney were significantly reduced, and superoxide dismutase and glutathione peroxidase activities were significantly increased after chrysophanol treatment. Collectively, these findings indicate that chrysophanol can significantly reduce damage to hippocampal neurons in lead-exposed neonatal mice.
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Affiliation(s)
- Ji Zhang
- Department of Pharmacology, Hebei North University, Zhangjiakou, Hebei Province, China
| | - Chunlin Yan
- Department of Pharmacology, Hebei North University, Zhangjiakou, Hebei Province, China
| | - Shu Wang
- Department of Pharmacology, Hebei North University, Zhangjiakou, Hebei Province, China
| | - Yong Hou
- Department of Pharmacology, Hebei North University, Zhangjiakou, Hebei Province, China
| | - Guiping Xue
- Department of Pharmacology, Hebei North University, Zhangjiakou, Hebei Province, China
| | - Li Zhang
- Department of Pharmacology, Hebei North University, Zhangjiakou, Hebei Province, China
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Camellia sinensis (L.) Kuntze Extract Ameliorates Chronic Ethanol-Induced Hepatotoxicity in Albino Rats. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2014; 2014:787153. [PMID: 25254057 PMCID: PMC4164262 DOI: 10.1155/2014/787153] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/25/2014] [Revised: 06/04/2014] [Accepted: 06/09/2014] [Indexed: 01/11/2023]
Abstract
The goal of this study was to investigate the hepatoprotective effects of aqueous extract of Camellia sinensis or green tea extract (AQGTE) in chronic ethanol-induced albino rats. All animals were divided into 4 groups in the study for a 5-week duration. 50% ethanol was given orally to the rats with two doses (5 mg/kg bw and 10 mg/kg bw) of AQGTE. Ethanol administration caused a significant increase in the levels of plasma and serum enzymatic markers, alanine aminotransferase (ALT), aspartate aminotransferase (AST), and alkaline phosphatase (ALP), and nonenzymatic markers (cholesterol and triglycerides), lipid peroxidation contents, malondialdehyde (MDA), and glutathione-S-transferase (GST), and decreased the activities of total proteins, albumin, and cellular antioxidant defense enzymes such as superoxide dismutase (SOD). The elevation and reduction in these biochemical enzymes caused the damage in hepatocytes histologically due to the high production of ROS, which retards the antioxidant defense capacity of cell. AQGTE was capable of recovering the level of these markers and the damaged hepatocytes to their normal structures. These results support the suggestion that AQGTE was able to enhance hepatoprotective and antioxidant effects in vivo against ethanol-induced toxicity.
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Khordad E, Fazel A, Ebrahimzadeh Bideskan A. The effect of ascorbic acid and garlic administration on lead-induced apoptosis in rat offspring's eye retina. IRANIAN BIOMEDICAL JOURNAL 2014; 17:206-13. [PMID: 23999717 DOI: 10.6091/ibj.1229.2013] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
INTRODUCTION Lead toxicity induces retinal cell apoptosis. Vitamin C and garlic may decrease lead-induced apoptosis. This study was undertaken to investigate vitamin C and garlic protective effects on lead-induced apoptosis in eye retina. METHODS Pregnant Wistar rats (n = 72) were divided randomly into 9 groups: (L) treated rats with lead acetate in drinking water and (L+AA) with leaded water and vitamin C intraperitoneally;(L+G), the rats received leaded-water and garlic juice via gavage; (L+AA+G) treated rats with leaded water, ascorbic acid, and garlic juice, (AA) with ascorbic acid, and (G) with garlic juice; (AA+G) treated rats with vitamin C and garlic juice and (Sh) with tap water plus normal hydrogen chloride (HCl) and glucose; normal (N). After 21-day lactation, blood lead level (BLL) in rats was measured, and then their offspring and the rat offspring's eyes were removed and processed for using TUNEL method. TUNEL positive cells in the eye retina were counted and all groups were compared. RESULTS BLL increased in L group compared to the control groups and decreased significantly in L + G, L + AA, and L+ AA + G groups compared to L group (P<0.05). TUNELL positive cell number in eye retina significantly increased in L group compared to control groups (P<0.05) and decreased in L+ G, L+ AA, and L+AA + G groups compared to L group (P<0.05). CONCLUSION Garlic juice and ascorbic acid administration during pregnancy and lactation may protect lead-induced apoptosis in rat offspring's eye retina.
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Affiliation(s)
- Elnaz Khordad
- Dept. of Anatomy and Cell Biology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Alireza Fazel
- Dept. of Anatomy and Cell Biology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
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Velaga MK, Yallapragada PR, Williams D, Rajanna S, Bettaiya R. Hydroalcoholic seed extract of Coriandrum sativum (Coriander) alleviates lead-induced oxidative stress in different regions of rat brain. Biol Trace Elem Res 2014; 159:351-63. [PMID: 24793421 DOI: 10.1007/s12011-014-9989-4] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2014] [Accepted: 04/17/2014] [Indexed: 02/07/2023]
Abstract
Lead exposure is known to cause apoptotic neurodegeneration and neurobehavioral abnormalities in developing and adult brain by impairing cognition and memory. Coriandrum sativum is an herb belonging to Umbelliferae and is reported to have a protective effect against lead toxicity. In the present investigation, an attempt has been made to evaluate the protective activity of the hydroalcoholic extract of C. sativum seed against lead-induced oxidative stress. Male Wistar strain rats (100-120 g) were divided into four groups: control group: 1,000 mg/L of sodium acetate; exposed group: 1,000 mg/L lead acetate for 4 weeks; C. sativum treated 1 (CST1) group: 250 mg/kg body weight/day for seven consecutive days after 4 weeks of lead exposure; C. sativum treated 2 (CST2) group: 500 mg/kg body weight/day for seven consecutive days after 4 weeks of lead exposure. After the exposure and treatment periods, rats were sacrificed by cervical dislocation, and the whole brain was immediately isolated and separated into four regions: cerebellum, hippocampus, frontal cortex, and brain stem along with the control group. After sacrifice, blood was immediately collected into heparinized vials and stored at 4 °C. In all the tissues, reactive oxygen species (ROS), lipid peroxidation products (LPP), and total protein carbonyl content (TPCC) were estimated following standard protocols. An indicator enzyme for lead toxicity namely delta-amino levulinic acid dehydratase (δ-ALAD) activity was determined in the blood. A significant (p<0.05) increase in ROS, LPP, and TPCC levels was observed in exposed rat brain regions, while δ-ALAD showed a decrease indicating lead-induced oxidative stress. Treatment with the hydroalcoholic seed extract of C. sativum resulted in a tissue-specific amelioration of oxidative stress produced by lead.
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Affiliation(s)
- Manoj Kumar Velaga
- Division of Animal Physiology and Toxicology, Department of Zoology, Andhra University, Visakhapatnam, 530003, India
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77
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Silymarin Attenuated the Amyloid β Plaque Burden and Improved Behavioral Abnormalities in an Alzheimer’s Disease Mouse Model. Biosci Biotechnol Biochem 2014; 74:2299-306. [DOI: 10.1271/bbb.100524] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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78
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Omobowale TO, Oyagbemi AA, Akinrinde AS, Saba AB, Daramola OT, Ogunpolu BS, Olopade JO. Failure of recovery from lead induced hepatoxicity and disruption of erythrocyte antioxidant defence system in Wistar rats. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2014; 37:1202-11. [PMID: 24814264 DOI: 10.1016/j.etap.2014.03.002] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2013] [Revised: 03/03/2014] [Accepted: 03/06/2014] [Indexed: 05/17/2023]
Abstract
Lead acetate (PbA) is one of the major environmental contaminants with grave toxicological consequences both in the developing and developed countries. The liver and erythrocyte antioxidant status and markers of oxidative were assessed. Exposure of rats to PbA led to significant decline (p < 0.05) in hepatic and erythrocyte glutathione peroxidase (GPx), glutathione S-transferase (GST), catalase (CAT), superoxide dismutase (SOD), and reduced glutathione (GSH) content. Similarly, malondialdehyde (MDA) and H(2)O(2) concentrations were significantly (p < 0.05) elevated. Histopathology and immunohistology of liver of rats exposed to PbA showed focal areas of necrosis and COX-2 expression after 6 weeks of PbA withdrawal. Taken together, hepatic and erythrocytes antioxidant defence system failed to recover after withdrawal of the exposed PbA for the period of the study. In conclusion, experimental animals exposed to PbA did not recover from hepatotoxicity and disruption of erythrocyte antioxidant defence system via free radical generation and oxidative stress.
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Affiliation(s)
- Temidayo O Omobowale
- Department of Veterinary Medicine, Faculty of Veterinary Medicine, University of Ibadan, Nigeria
| | - Ademola A Oyagbemi
- Department of Veterinary Physiology, Biochemistry and Pharmacology, Faculty of Veterinary Medicine, University of Ibadan, Nigeria.
| | - Akinleye S Akinrinde
- Department of Veterinary Physiology, Biochemistry and Pharmacology, Faculty of Veterinary Medicine, University of Ibadan, Nigeria
| | - Adebowale B Saba
- Department of Veterinary Physiology, Biochemistry and Pharmacology, Faculty of Veterinary Medicine, University of Ibadan, Nigeria
| | - Oluwabusola T Daramola
- Department of Veterinary Medicine, Faculty of Veterinary Medicine, University of Ibadan, Nigeria
| | - Blessing S Ogunpolu
- Department of Veterinary Medicine, Faculty of Veterinary Medicine, University of Ibadan, Nigeria
| | - James O Olopade
- Department of Veterinary Anatomy, Faculty of Veterinary Medicine, University of Ibadan, Nigeria
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García-Niño WR, Pedraza-Chaverrí J. Protective effect of curcumin against heavy metals-induced liver damage. Food Chem Toxicol 2014; 69:182-201. [PMID: 24751969 DOI: 10.1016/j.fct.2014.04.016] [Citation(s) in RCA: 240] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2014] [Revised: 04/05/2014] [Accepted: 04/08/2014] [Indexed: 02/06/2023]
Abstract
Occupational or environmental exposures to heavy metals produce several adverse health effects. The common mechanism determining their toxicity and carcinogenicity is the generation of oxidative stress that leads to hepatic damage. In addition, oxidative stress induced by metal exposure leads to the activation of the nuclear factor (erythroid-derived 2)-like 2/Kelch-like ECH-associated protein 1/antioxidant response elements (Nrf2/Keap1/ARE) pathway. Since antioxidant and chelating agents are generally used for the treatment of heavy metals poisoning, this review is focused on the protective role of curcumin against liver injury induced by heavy metals. Curcumin has shown, in clinical and preclinical studies, numerous biological activities including therapeutic efficacy against various human diseases and anti-hepatotoxic effects against environmental or occupational toxins. Curcumin reduces the hepatotoxicity induced by arsenic, cadmium, chromium, copper, lead and mercury, prevents histological injury, lipid peroxidation and glutathione (GSH) depletion, maintains the liver antioxidant enzyme status and protects against mitochondrial dysfunction. The preventive effect of curcumin on the noxious effects induced by heavy metals has been attributed to its scavenging and chelating properties, and/or to the ability to induce the Nrf2/Keap1/ARE pathway. However, additional research is needed in order to propose curcumin as a potential protective agent against liver damage induced by heavy metals.
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Affiliation(s)
- Wylly Ramsés García-Niño
- Department of Biology, Faculty of Chemistry, National Autonomous University of Mexico (UNAM), University City, 04510 D.F., Mexico
| | - José Pedraza-Chaverrí
- Department of Biology, Faculty of Chemistry, National Autonomous University of Mexico (UNAM), University City, 04510 D.F., Mexico.
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Rasool M, Iqbal J, Malik A, Ramzan HS, Qureshi MS, Asif M, Qazi MH, Kamal MA, Chaudhary AGA, Al-Qahtani MH, Gan SH, Karim S. Hepatoprotective Effects of Silybum marianum (Silymarin) and Glycyrrhiza glabra (Glycyrrhizin) in Combination: A Possible Synergy. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2014; 2014:641597. [PMID: 24795768 PMCID: PMC3984823 DOI: 10.1155/2014/641597] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/01/2013] [Accepted: 02/12/2014] [Indexed: 12/13/2022]
Abstract
Oxidative stress, lipid peroxidation, and transaminase reactions are some of the mechanisms that can lead to liver dysfunction. A time-dependent study was designed to evaluate the ability of silymarin (SLN) and glycyrrhizin (GLN) in different dosage regimens to lessen oxidative stress in the rats with hepatic injury caused by the hepatotoxin carbon tetrachloride. Wistar male albino rats (n = 60) were randomly assigned to six groups. Group A served as a positive control while groups B, C, D, E, and F received a dose of CCl4 (50% solution of CCl4 in liquid paraffin, 2 mL/kg, intraperitoneally) twice a week to induce hepatic injury. Additionally, the animals received SLN and GLN in different doses for a period of six weeks. CCl4 was found to induce hepatic injury by significantly increasing serum alanine aminotransferase, aspartate aminotransferase, alkaline phosphatase, and thiobarbituric acid reactive substances while decreasing total protein and the activities of reduced glutathione, superoxide dismutase, and catalase. Treatment with various doses of SLN and GLN significantly reduced ALT, AST, ALP, and TBARS levels and increased GSH, SOD, and CAT levels. Our findings indicated that SLN and GLN have hepatoprotective effects against oxidative stress of the liver.
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Affiliation(s)
- Mahmood Rasool
- Center of Excellence in Genomic Medicine Research, King Abdulaziz University, Post Box No. 80216, Jeddah 21589, Saudi Arabia
| | - Javed Iqbal
- Department of Pharmacy, University of Lahore, Pakistan
| | - Arif Malik
- The Institute of Molecular Biology and Biotechnology, University of Lahore, Pakistan
| | - Hafiza Sobia Ramzan
- The Institute of Molecular Biology and Biotechnology, University of Lahore, Pakistan
| | | | - Muhammad Asif
- Department of Biotechnology and Informatics, BUITEMS, Quetta, Pakistan
| | | | - Mohammad Amjad Kamal
- King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Adeel Gulzar Ahmed Chaudhary
- Center of Excellence in Genomic Medicine Research, King Abdulaziz University, Post Box No. 80216, Jeddah 21589, Saudi Arabia
| | - Mohammed Hussain Al-Qahtani
- Center of Excellence in Genomic Medicine Research, King Abdulaziz University, Post Box No. 80216, Jeddah 21589, Saudi Arabia
| | - Siew Hua Gan
- Human Genome Centre, School of Medical Sciences, Universiti Sains Malaysia, 16150 Kubang Kerian, Kelantan, Malaysia
| | - Sajjad Karim
- Center of Excellence in Genomic Medicine Research, King Abdulaziz University, Post Box No. 80216, Jeddah 21589, Saudi Arabia
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81
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Alipour F, Bideskan AE, Fazel A, Sadeghi A, Hami J, Kheradmand H, Haghir H. Protective effects of ascorbic acid and garlic extract against neurogenesis inhibition caused by developmental lead exposure in the dentate gyrus of rat. ACTA ACUST UNITED AC 2014. [DOI: 10.1007/s00580-014-1895-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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82
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Rendón-Ramírez AL, Maldonado-Vega M, Quintanar-Escorza MA, Hernández G, Arévalo-Rivas BI, Zentella-Dehesa A, Calderón-Salinas JV. Effect of vitamin E and C supplementation on oxidative damage and total antioxidant capacity in lead-exposed workers. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2014; 37:45-54. [PMID: 24560336 DOI: 10.1016/j.etap.2013.10.016] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2013] [Revised: 10/03/2013] [Accepted: 10/25/2013] [Indexed: 05/16/2023]
Abstract
The molecular response of the antioxidant system and the effects of antioxidant supplementation against oxidative insult in lead-exposed workers has not been sufficiently studied. In this work, antioxidants (vitamin E 400 IU+vitamin C 1g/daily) were supplemented for one year to 15 workers exposed to lead (73 μg of lead/dl of blood) and the results were compared with those on 19 non-lead exposed workers (6.7 μg of lead/dl). Lead intoxication was accompanied by a high oxidative damage and an increment in the erythrocyte antioxidant response due to increased activity of catalase and superoxide dismutase. Antioxidant supplementations decreased significantly the oxidative damage as well as the total antioxidant capacity induced by lead intoxication with reduction of the antioxidant enzyme activities. We conclude that antioxidant supplementation is effective in reducing oxidative damage and induces modifications in the physiopathological status of the antioxidant response in lead-exposed workers.
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Affiliation(s)
| | | | | | - Gerardo Hernández
- Section of Methodology of Science, Centro de Investigación y Estudios Avanzados IPN, México, DF, Mexico
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83
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Heidarian E, Rafieian-Kopaei M. Protective effect of artichoke (Cynara scolymus) leaf extract against lead toxicity in rat. PHARMACEUTICAL BIOLOGY 2013; 51:1104-1109. [PMID: 23745593 DOI: 10.3109/13880209.2013.777931] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
CONTEXT Artichoke, Cynara scolymus L. (Asteraceae), has many natural antioxidants and multiple pharmacological actions. Recent studies have shown that it has antitoxic activity. OBJECTIVE Lead (Pb) is a dangerous environmental toxicant that induces a broad range of dysfunctions in human. This study evaluated the protective effect of the hydroethanolic extract of artichoke against altered biochemical parameters in rats fed with lead-containing diet. MATERIALS AND METHODS Thirty-two rats were randomly divided into four groups. The first (control) group received standard diet. The second, third and fourth groups received 500 mg lead/kg diet, 500 mg lead/kg diet plus 300 mg/kg b.w. artichoke extract daily, and 500 mg lead/kg diet plus 1 mg vitamin C/100 g b.w. daily for 6 weeks, respectively. Serum lead, lipoprotein profile, ALT (alanine transaminase), AST (aspartate transaminase), ALP (alkaline phosphatase), malondialdehyde (MDA) and liver histopathology assessments were conducted. RESULTS Serum lead, triglyceride (TG), VLDL, ALT, AST, ALP and MDA levels decreased significantly (p < 0.05) in the artichoke-treated group (35.85, 38.26, 38.38, 21.90, 12.81, 26.86 and 46.91%, respectively) compared to lead-intoxicated rats without treatment. No significant change was observed in serum lead, ALP and ALT between artichoke and vitamin C-treated groups (p > 0.05). Furthermore, the liver histopathology in rats treated with artichoke showed a mild degree of lymphocyte infiltration that was relatively comparable to the control and vitamin C-treated groups. DISCUSSION AND CONCLUSION These results clearly show that the artichoke extract in lead-poisoned rats has suitable chelating properties for the reduction of blood lead levels.
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Affiliation(s)
- Esfandiar Heidarian
- Clinical Biochemistry Research Center, Shahrekord University of Medical Sciences, Shahrekord, Iran.
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84
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Ameliorating effects of garlic, calcium, and vitamin C on chronic lead toxicity in albino rats. ACTA ACUST UNITED AC 2013. [DOI: 10.1007/s00580-013-1765-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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85
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Lakshmi BVS, Sudhakar M, Aparna M. Protective potential of Black grapes against lead induced oxidative stress in rats. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2013; 35:361-368. [PMID: 23467113 DOI: 10.1016/j.etap.2013.01.008] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2012] [Revised: 01/10/2013] [Accepted: 01/11/2013] [Indexed: 06/01/2023]
Abstract
From time immemorial Vitis vinifera (Black grapes) have been used both for medicinal and nourishment purposes. The aim of this study is to investigate the protective effect of Black grapes against lead nitrate induced oxidative stress. Exposure to lead significantly increased malondialdehyde levels with a significant decrease in superoxide dismutase and catalase activities, and the concentration of GSH in the liver and kidneys of rats. Significantly increased levels of AST, ALT, ALP, BUN and serum creatinine and decreased levels of total protein were observed. The administration of lead significantly decreased the body weight and organ weights at the end of the experimental period. Statistically significant decrease in hemoglobin, red blood cell and total leukocyte count was observed. Pretreatment of hydroalcoholic extract of Black grapes to lead exposed rats significantly ameliorated lead-induced oxidative stress in tissues and produced improvement in hematological parameters over lead-exposed rats, indicating the beneficial role of Black grapes to counteract the lead-induced oxidative stress.
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Affiliation(s)
- B V S Lakshmi
- Department of Pharmacology, Malla Reddy College of Pharmacy, Dhulapally (via Hakimpet), Maisammaguda, Secunderabad 500014, Andhra Pradesh, India.
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86
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Dorostghoal M, Seyyednejad SM, Jabari A. Protective effects of Fumaria parviflora L. on lead-induced testicular toxicity in male rats. Andrologia 2013; 46:437-46. [PMID: 23611729 DOI: 10.1111/and.12100] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/18/2013] [Indexed: 11/30/2022] Open
Abstract
In recent years, the clinical importance of herbal drugs has received considerable attention in reducing free radical-induced tissue injury. Oxidative stress has been proposed as a possible mechanism involved in lead toxicity that causes reproductive system failure in both human and animals. Fumaria parviflora L., a traditional herb, has been used to cure various ailments in Persian folk medicine. This study was carried out to investigate whether ethanolic extract of F. parviflora leaves could protect the male rats against lead-induced testicular oxidative stress. Adult Wistar rats were treated with 0.1% lead acetate in drinking water with or without 200 mg kg day(-1) F. parviflora extract via gavage for 70 days. Lead acetate treatment resulted in significant reduction in testis weight, seminiferous tubules diameter, epididymal sperm count, serum testosterone level, testicular content of superoxide dismutase (SOD) and glutathione peroxidase (GPx). Moreover, significant elevation was observed in content of malondialdehyde (MDA) in lead-treated rats. However, co-administration of F. parviflora extract showed a significant increase in selected reproductive parameters in lead-treated rats. The results indicated that ethanolic extract of F. parviflora leaves has a potential to restore the suppressed reproduction associated with lead exposure and prevented lead-induced testicular toxicity in male Wistar rats.
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Affiliation(s)
- M Dorostghoal
- Department of Biology, Faculty of Science, Shahid Chamran University of Ahvaz, Ahvaz, Iran
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87
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88
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Protective Effect of Silymarin against Acrolein-Induced Cardiotoxicity in Mice. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2012; 2012:352091. [PMID: 23320028 PMCID: PMC3535759 DOI: 10.1155/2012/352091] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/16/2012] [Revised: 11/12/2012] [Accepted: 11/15/2012] [Indexed: 02/07/2023]
Abstract
Reactive α,β-unsaturated aldehydes such as acrolein (ACR) are major components of environmental pollutants and have been implicated in the neurodegenerative and cardiac diseases. In this study, the protective effect of silymarin (SN) against cardiotoxicity induced by ACR in mice was evaluated. Studies were performed on seven groups of six animals each, including vehicle-control (normal saline + 0.5% w/v methylcellulose), ACR (7.5 mg/kg/day, gavage) for 3 weeks, SN (25, 50 and 100 mg/kg/day, i.p.) plus ACR, vitamin E (Vit E, 100 IU/kg, i.p.) plus ACR, and SN (100 mg/kg, i.p.) groups. Mice received SN 7 days before ACR and daily thereafter throughout the study. Pretreatment with SN attenuated ACR-induced increased levels of malondialdehyde (MDA), serum cardiac troponin I (cTnI), and creatine kinase-MB (CK-MB), as well as histopathological changes in cardiac tissues. Moreover, SN improved glutathione (GSH) content, superoxide dismutase (SOD), and catalase (CAT) activities in heart of ACR-treated mice. Western blot analysis showed that SN pretreatment inhibited apoptosis provoked by ACR through decreasing Bax/Bcl-2 ratio, cytosolic cytochrome c content, and cleaved caspase-3 level in heart. In conclusion, SN may have protective effects against cardiotoxicity of ACR by reducing lipid peroxidation, renewing the activities of antioxidant enzymes, and preventing apoptosis.
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89
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Toxicity of lead: A review with recent updates. Interdiscip Toxicol 2012; 5:47-58. [PMID: 23118587 PMCID: PMC3485653 DOI: 10.2478/v10102-012-0009-2] [Citation(s) in RCA: 1036] [Impact Index Per Article: 79.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2012] [Revised: 04/13/2012] [Accepted: 04/20/2012] [Indexed: 11/21/2022] Open
Abstract
Lead poisoning has been recognized as a major public health risk, particularly in developing countries. Though various occupational and public health measures have been undertaken in order to control lead exposure, cases of lead poisoning are still reported. Exposure to lead produces various deleterious effects on the hematopoietic, renal, reproductive and central nervous system, mainly through increased oxidative stress. These alterations play a prominent role in disease manifestations. Modulation of cellular thiols for protection against reactive oxygen species (ROS) has been used as a therapeutic strategy against lead poisoning. N-acetylcysteine, α-lipoic acid, vitamin E, quercetin and a few herbal extracts show prophylaxis against the majority of lead mediated injury in both in vitro and in vivo studies. This review provides a comprehensive account of recent updates describing health effects of lead exposure, relevant biomarkers and mechanisms involved in lead toxicity. It also updates the readers about recent advances in chelation therapy and newer therapeutic strategies, like nanoencapsulation, to treat lead induced toxic manifestations.
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90
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Effect of Quercetin on Haematobiochemical and Histological Changes in the Liver of Polychlorined Biphenyls-Induced Adult Male Wistar Rats. J Biomark 2012; 2013:960125. [PMID: 26317025 PMCID: PMC4437364 DOI: 10.1155/2013/960125] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2012] [Accepted: 08/11/2012] [Indexed: 12/21/2022] Open
Abstract
Polychlorinated biphenyls exposure damages the rat liver cells. Hematological parameters such as hemoglobin, packed cell volume, red-blood cells, white-blood cells, neutrophils, platelet counts, and RBC indices were significantly decreased. Polymorphs, eosinophil counts, and erythrocyte sedimentation rate were significantly increased. Serum liver enzymes such as aspartate transaminase, alanine transaminase, alkaline phosphatase, and gamma-glutamyl transferase were increased by PCBs treatment. Serum lipid profiles such as cholesterol, triglycerides, low-density lipoproteins and very-low-density lipoproteins were increased in PCBs-treated rats. High-density lipoprotein, total protein, albumin, globulin levels, and albumin/globulin ratio were also decreased after PCB exposure. Then levels of sodium, potassium, chloride, and bicarbonate were also altered. Serum glucose levels were increased along with total bilirubin after PCBs exposure. Simultaneous quercetin supplementation significantly protected the PCBs-induced changes of hematobiochemical parameters. Thus, quercetin shows a protective role against PCBs-induced alterations in the hematological and biochemical parameters.
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91
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Hepatoprotective and anti-inflammatory effects of silibinin on experimental preeclampsia induced by l-NAME in rats. Life Sci 2012; 91:159-65. [DOI: 10.1016/j.lfs.2012.06.036] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2011] [Revised: 05/31/2012] [Accepted: 06/25/2012] [Indexed: 11/23/2022]
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92
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Effect of dietary inclusion of salt substitutes “Obu-Otoyo” on some biochemical indices in rat. Food Chem Toxicol 2012; 50:2873-7. [DOI: 10.1016/j.fct.2012.05.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2011] [Revised: 03/13/2012] [Accepted: 05/02/2012] [Indexed: 11/20/2022]
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93
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Taylor AM, Maher WA. Exposure-dose-response of Anadara trapezia to metal contaminated estuarine sediments. 2. Lead spiked sediments. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2012; 116-117:79-89. [PMID: 22466358 DOI: 10.1016/j.aquatox.2012.02.017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2011] [Revised: 02/15/2012] [Accepted: 02/18/2012] [Indexed: 05/31/2023]
Abstract
The composition of near shore marine environments is increasingly being altered by contaminants from human activities. The ability of lead, which has no known biological function, to mimic biologically essential metals makes it one of the most toxic to marine biota. The relationship between lead exposure, dose and response was investigated in Anadara trapezia exposed for 56 days to lead spiked sediment (100 and 300 μg/g dry mass). Lead tissue concentrations of the 300 μg/g exposed A. trapezia doubled in the last 2 weeks of exposure with final lead tissue concentrations of exposed organisms of 1 and 12 μg/g, respectively. Tissue lead accumulation of exposed organisms followed the pattern haemolymph>gill>hepatopancreas during much of the 56 day exposure. Between 30 and 69% of accumulated lead in the gill and hepatopancreas was detoxified and fairly evenly distributed between the metal rich granule and the metallothionein like protein fractions. Approximately half of the biologically active lead in both tissues was in the mitochondrial fraction which showed increased cytochrome c oxidase activity in lead exposed organisms. There was a reduction in GPx activity, an associated increase in total glutathione concentrations and reduced GSH:GSSG ratios due to a build up of oxidised glutathione. These changes in the glutathione pathway were reflected in the total antioxidant capacity of lead exposed A. trapezia which were significantly reduced compared to control organisms. Increased lead exposure significantly increased lipid peroxidation, lysosomal destabilisation and frequency of micronuclei. A significant exposure-dose-response relationship for A. trapezia exposed to lead enriched sediments indicates that elevated sediment lead concentrations have the potential to increase biologically active lead burdens and impair the antioxidant reduction capacity leading to a series of associated effects from lipid peroxidation to cellular perturbation and genotoxic damage.
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Affiliation(s)
- Anne M Taylor
- Ecochemistry Laboratory, Institute for Applied Ecology, Faculty of Applied Science, University of Canberra, ACT 2601, Australia.
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94
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Protective effects of an alfalfa aqueous extract on lead toxicity in broiler chickens: a biochemical approach. ACTA ACUST UNITED AC 2012. [DOI: 10.1007/s00580-012-1540-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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95
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Ameliorated effects of green tea extract on lead induced liver toxicity in rats. ACTA ACUST UNITED AC 2012; 64:291-5. [DOI: 10.1016/j.etp.2010.09.001] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2010] [Accepted: 09/06/2010] [Indexed: 11/23/2022]
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96
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Abdel-Moneim AE, Dkhil MA, Al-Quraishy S. The redox status in rats treated with flaxseed oil and lead-induced hepatotoxicity. Biol Trace Elem Res 2011; 143:457-467. [PMID: 20960072 DOI: 10.1007/s12011-010-8882-z] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2010] [Accepted: 10/11/2010] [Indexed: 10/18/2022]
Abstract
Lead is a persistent environmental pollutant, and its toxicity continues to be a major health problem due to its interference with natural environment. In the present study, we have evaluated the effect of flaxseed oil on lead acetate-mediated hepatic oxidative stress and toxicity in rats. Lead acetate enhanced lipid peroxidation and nitric oxide production in both serum and liver with concomitant reduction in glutathione, catalase, superoxide dismutase, glutathione reductase, glutathione-S-transferase, and glutathione peroxidase activities, these findings were associated with DNA fragmentation. In addition, lead acetate caused liver injury as indicated by histopathological changed of the liver with an elevation in total bilirubin, serum alanine aminotransferase, aspartate aminotransferase, γ-glutamyl transpeptidase, and alkaline phosphatase. Treatment of rats with flaxseed oil resulted in marked improvement in most of the studied parameters as well as histopathological features. On the basis of the above results it can hypothesized that flaxseed oil is a natural product can be protect against lead acetate-mediated hepatic cytotoxicity.
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Affiliation(s)
- Ahmed E Abdel-Moneim
- Department of Zoology and Entomology, Faculty of Science, Helwan University, Cairo, Egypt.
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97
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Al-Attar AM. Vitamin E attenuates liver injury induced by exposure to lead, mercury, cadmium and copper in albino mice. Saudi J Biol Sci 2011; 18:395-401. [PMID: 23961152 DOI: 10.1016/j.sjbs.2011.07.004] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2011] [Revised: 07/28/2011] [Accepted: 07/29/2011] [Indexed: 10/17/2022] Open
Abstract
Water pollution is the contamination of water resources by harmful wastes or toxins. Both community and private sources of drinking water are susceptible to a myriad of chemical contaminants. Heavy metals pollution of surface water can create health risks. The present study was aimed to investigate the effect of vitamin E supplementation on male mice exposed to a mixture of some heavy metals (lead, mercury, cadmium and copper) in their drinking water for seven weeks. Significant increases of blood alanine aminotransferase (ALT), aspartate aminotransferase (AST), alkaline phosphatase (ALP), gamma glutamyl transferase (GGT) were detected in heavy metals-treated mice. Histopathologically, the liver sections from heavy metals-treated mice showed severe changes including disarrangement of hepatic strands, rupture in hepatocytes, advanced hepatocellular necrosis, dilation and congestion of blood vessels with hemorrhage, dense lymphocytic infiltration round the central vein and dark stained hepatocytic nuclei indicating cell pycnosis. Administration of vitamin E at a dose of 50 IU/kg body weight, five times weekly improved the observed biochemical and histopathological changes induced by these heavy metals intoxication. Hence, the results of this study suggest that vitamin E protects against these heavy metals-induced liver injury and the attenuating effect of vitamin E may be due to its antioxidant activity.
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Affiliation(s)
- Atef M Al-Attar
- Department of Biological Sciences, Faculty of Sciences, King Abdul Aziz University, P.O. Box 139109, Jeddah 21323, Saudi Arabia
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98
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Monteiro V, Cavalcante DGSM, Viléla MBFA, Sofia SH, Martinez CBR. In vivo and in vitro exposures for the evaluation of the genotoxic effects of lead on the Neotropical freshwater fish Prochilodus lineatus. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2011; 104:291-298. [PMID: 21652016 DOI: 10.1016/j.aquatox.2011.05.002] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2010] [Revised: 04/27/2011] [Accepted: 05/04/2011] [Indexed: 05/30/2023]
Abstract
In the present study, in vivo and in vitro exposures were used to assess the genotoxicity of lead (Pb) to the freshwater fish Prochilodus lineatus. The comet assay using blood, liver and gill cells, and the occurrence of micronuclei (MN) and other erythrocytic nuclear abnormalities (ENA) were used to assess the genotoxic potential of lead in vivo. Metallothionein content (MT) was measured in fish liver in order to evaluate the protection of fish against Pb toxicity. Fish erythrocytes were exposed to Pb in vitro (1, 3 and 6 h) and the number of viable cells, DNA integrity, using the comet assay, and lysosomal membrane stability, measured by the neutral red retention assay (NRRA) were analyzed. The results of the comet assay after in vivo toxicity tests (6, 24 and 96 h) showed that Pb was genotoxic for all the three tissues analyzed after 96 h exposure. A significant increase in liver MT content was observed after 6 and 24 h of Pb exposure. MN frequency did not increase after Pb exposures, but the frequency of the other ENA, such as kidney-shaped nuclei, segmented nuclei and lobed nuclei, showed a significant increase after 24 and 96 h, indicating that ENA is a better biomarker for Pb exposure than MN alone after short-term exposures. The results of the comet assay performed with erythrocytes in vitro exposed to lead confirmed its genotoxic effect and showed that DNA damage increased with increasing exposure time. Moreover, the NRRA clearly indicated that Pb induces a destabilization of the lysosomal membrane. These results demonstrate the potential genotoxicity and cytotoxicity of lead after acute exposures.
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Affiliation(s)
- V Monteiro
- Laboratory of Animal Ecophysiology, Department of Physiological Sciences, Londrina State University, PB 6001, 86051-990 Londrina, PR, Brazil
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99
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Marouf BH, Zalzala MH, Al-Khalifa II, Aziz TA, Hussain SA. Free radical scavenging activity of silibinin in nitrite-induced hemoglobin oxidation and membrane fragility models. Saudi Pharm J 2011; 19:177-83. [PMID: 23960757 PMCID: PMC3745080 DOI: 10.1016/j.jsps.2011.03.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2011] [Accepted: 03/13/2011] [Indexed: 01/23/2023] Open
Abstract
Free radical formation in heme proteins is recognized as a factor in mediating the toxicity of many drugs. Xenobiotics and drug therapy-related toxicity, due to oxidative modification of hemoglobin (Hb), has been attributed in part to the uncontrolled oxidative reactions. A variety of antioxidant strategies to ameliorate potential oxidative damage in vivo have been suggested. The present study was designed to evaluate the dose-response relationship of the free radical scavenging properties of silibinin dihemisuccinate (SDH) in nitrite-induced Hb oxidation in vitro and in vivo. Different concentrations of SDH were added, before and after different intervals of inducing Hb oxidation in erythrocytes lysate, and formation of methemoglobin (MetHb) was monitored spectrophotometrically; the same approach was utilized to evaluate the effect of the same doses of SDH on the integrity of erythrocytes after induction of hemolysis. Moreover, the most effective dose of SDH was administered in rats before challenge with toxic dose of sodium nitrite, and MetHb formation was monitored as mentioned before. The results showed that in both in vitro and in vivo models, SDH successfully attenuates Hb oxidation after challenge with sodium nitrite; this protective effect was not related to the stage of the catalytic stage of Hb oxidation, though the effect was more prominent when the compound was administered before nitrite. In conclusion, SDH can effectively, in concentration-dependent pattern, attenuate sodium nitrite-induced Hb oxidation and maintain integrity of red blood cells both in vitro and in vivo.
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Affiliation(s)
- Bushra H. Marouf
- Department of Pharmacology, College of Pharmacy, University of Sulaimani, Kurdistan, Iraq
| | - Munaf H. Zalzala
- Department of Pharmacology and Toxicology, College of Pharmacy, University of Baghdad, Baghdad, Iraq
| | - Ihab I. Al-Khalifa
- Department of Pharmacology and Toxicology, College of Pharmacy, University of Baghdad, Baghdad, Iraq
| | - Tavga A. Aziz
- Department of Pharmacology, College of Pharmacy, University of Sulaimani, Kurdistan, Iraq
| | - Saad A. Hussain
- Department of Pharmacology and Toxicology, College of Pharmacy, University of Baghdad, Baghdad, Iraq
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100
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Ma Y, Fu D, Liu Z. Effect of lead on apoptosis in cultured rat primary osteoblasts. Toxicol Ind Health 2011; 28:136-46. [DOI: 10.1177/0748233711407956] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
To investigate the effect of lead exposure on apoptosis of cultured rat primary osteoblasts (ROBs), which were derived from newborn calvariae of Sprague Dawley rat. They were identified by the staining of alkaline phosphatase and mineralized matrix. The ROBs were received at 0, 20, 40 and 80 μM Pb2+ of lead acetate solution for 24 h, respectively, before being doubly marked by Annexin V-fluorescein isothiocyanate/propidium iodide. The intracellular concentration of calcium ([Ca2+]i) was detected under the laser scan confocal microscope. The activities of phosphatidylcholine-specific phospholipase C (PC-PLC) were measured and the effect of lead exposure on the expression of PC-PLC was observed by immunoblotting assay. The results showed that when compared with that of the control group, lead exposure induced an increase of [Ca2+]i of lead-treated ROBs, resulting in a significant development in apoptosis. In the meantime, a significant decline in protein level and enzymatic activities of PC-PLC were observed in a dose-dependent manner. It was concluded that lead can induce apoptosis in ROBs, and one of the mechanisms of lead-induced apoptosis may be that activating intracellular calcium stores by decreasing protein levels and enzymatic activities of PC-PLC can increase the [Ca2+]i, and consequently, the apoptotic signal pathway can be induced.
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Affiliation(s)
- Yushui Ma
- College of Veterinary Medicine, Yangzhou University, Yangzhou, People's Republic of China
| | - Da Fu
- Department of Gastroenterology, Zhongshan Hospital, Fudan University, Shanghai, People's Republic of China
| | - Zongping Liu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, People's Republic of China
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