Intrastriatal pre-treatment with L-NAME protects rats from diquat neurotoxcity
Аутори
Đukić, MirjanaJovanović, Marina
Ninković, Milica
Stevanović, Ivana
Ćurčić, Marijana
Topić, Aleksandra
Vujanović, Dragana
Đurđević, Dragan
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Introduction: Contact herbicide diquat (DQ), redox cycling compound, mediates its systemic toxicity throughout the enlarged production of free radicals. Target organs are liver and kidney in humans. To-date, the mechanism of DQ-induced neurotoxicity has not been rationalized. Objective: The objectives of the study were to examine the ability of DQ to induce oxidative stress (OS) and/or nitrosative stress (NS) upon intrastriatal (i.s.) administration and to investigate the role of nitric oxide (NOx) using NG-nitro-L-arginine methyl ester (L-NAME), a non-selective inhibitor of nitric oxide synthase (NOS) in the pretreatment of DQ i.s. administration. Material and Methods: The experiment was conducted on Wistar rats, randomly divided in experimental groups, receiving different treatments i.s. applied. Parameters of OS/NS such as: superoxide anion radical (O-2(center dot-)), superoxide dismutase (SOD), malondialdehyde (MDA) and nitrates (NO3-) were measured in the cortex (bilaterally), at ...30th min, 24 hours and 7 days after the treatments. Results: Lethargy and high mortality rate were observed only in the DQ group (within 24 hours and 2-3 hours, respectively) after awakening from anesthesia. Markedly increased production of NOx and O-2(center dot-) along with elevated lipid peroxidation altogether contributed to DQ neurotoxicity. The most importantly, the L-NAME i.s. pretreatment protected treated animals from dying and diminished OS/NS response against DQ-induced neurotoxicity. Conclusion: The i.s. pretreatment with L-NAME resulted in neuroprotection against DQ neurotoxity, based on animal survival and reduced LPO in the cortex.
Кључне речи:
diquat / oxidative stress / nitric oxide / L-NAME / Wistar rats / brainИзвор:
Annals of Agricultural and Environmental Medicine, 2012, 19, 4, 666-672Издавач:
- Inst Agricultural Medicine, Lublin
Финансирање / пројекти:
- Превентивни, терапијски и етички приступ преклиничким и клиничким истраживањима гена и модулатора редокс ћелијске сигнализације у имунском, инфламаторном и пролиферативном одговору ћелије (RS-41018)
- Комплексне болести као модел систем за проучавање модулације фенотипа-структурна и функционална анализа молекуларних биомаркера (RS-173008)
- Ministry of Defense of the Republic of Serbia (Project No. MMA/06-10/B.3).
Институција/група
PharmacyTY - JOUR AU - Đukić, Mirjana AU - Jovanović, Marina AU - Ninković, Milica AU - Stevanović, Ivana AU - Ćurčić, Marijana AU - Topić, Aleksandra AU - Vujanović, Dragana AU - Đurđević, Dragan PY - 2012 UR - https://farfar.pharmacy.bg.ac.rs/handle/123456789/1663 AB - Introduction: Contact herbicide diquat (DQ), redox cycling compound, mediates its systemic toxicity throughout the enlarged production of free radicals. Target organs are liver and kidney in humans. To-date, the mechanism of DQ-induced neurotoxicity has not been rationalized. Objective: The objectives of the study were to examine the ability of DQ to induce oxidative stress (OS) and/or nitrosative stress (NS) upon intrastriatal (i.s.) administration and to investigate the role of nitric oxide (NOx) using NG-nitro-L-arginine methyl ester (L-NAME), a non-selective inhibitor of nitric oxide synthase (NOS) in the pretreatment of DQ i.s. administration. Material and Methods: The experiment was conducted on Wistar rats, randomly divided in experimental groups, receiving different treatments i.s. applied. Parameters of OS/NS such as: superoxide anion radical (O-2(center dot-)), superoxide dismutase (SOD), malondialdehyde (MDA) and nitrates (NO3-) were measured in the cortex (bilaterally), at 30th min, 24 hours and 7 days after the treatments. Results: Lethargy and high mortality rate were observed only in the DQ group (within 24 hours and 2-3 hours, respectively) after awakening from anesthesia. Markedly increased production of NOx and O-2(center dot-) along with elevated lipid peroxidation altogether contributed to DQ neurotoxicity. The most importantly, the L-NAME i.s. pretreatment protected treated animals from dying and diminished OS/NS response against DQ-induced neurotoxicity. Conclusion: The i.s. pretreatment with L-NAME resulted in neuroprotection against DQ neurotoxity, based on animal survival and reduced LPO in the cortex. PB - Inst Agricultural Medicine, Lublin T2 - Annals of Agricultural and Environmental Medicine T1 - Intrastriatal pre-treatment with L-NAME protects rats from diquat neurotoxcity VL - 19 IS - 4 SP - 666 EP - 672 UR - https://hdl.handle.net/21.15107/rcub_farfar_1663 ER -
@article{ author = "Đukić, Mirjana and Jovanović, Marina and Ninković, Milica and Stevanović, Ivana and Ćurčić, Marijana and Topić, Aleksandra and Vujanović, Dragana and Đurđević, Dragan", year = "2012", abstract = "Introduction: Contact herbicide diquat (DQ), redox cycling compound, mediates its systemic toxicity throughout the enlarged production of free radicals. Target organs are liver and kidney in humans. To-date, the mechanism of DQ-induced neurotoxicity has not been rationalized. Objective: The objectives of the study were to examine the ability of DQ to induce oxidative stress (OS) and/or nitrosative stress (NS) upon intrastriatal (i.s.) administration and to investigate the role of nitric oxide (NOx) using NG-nitro-L-arginine methyl ester (L-NAME), a non-selective inhibitor of nitric oxide synthase (NOS) in the pretreatment of DQ i.s. administration. Material and Methods: The experiment was conducted on Wistar rats, randomly divided in experimental groups, receiving different treatments i.s. applied. Parameters of OS/NS such as: superoxide anion radical (O-2(center dot-)), superoxide dismutase (SOD), malondialdehyde (MDA) and nitrates (NO3-) were measured in the cortex (bilaterally), at 30th min, 24 hours and 7 days after the treatments. Results: Lethargy and high mortality rate were observed only in the DQ group (within 24 hours and 2-3 hours, respectively) after awakening from anesthesia. Markedly increased production of NOx and O-2(center dot-) along with elevated lipid peroxidation altogether contributed to DQ neurotoxicity. The most importantly, the L-NAME i.s. pretreatment protected treated animals from dying and diminished OS/NS response against DQ-induced neurotoxicity. Conclusion: The i.s. pretreatment with L-NAME resulted in neuroprotection against DQ neurotoxity, based on animal survival and reduced LPO in the cortex.", publisher = "Inst Agricultural Medicine, Lublin", journal = "Annals of Agricultural and Environmental Medicine", title = "Intrastriatal pre-treatment with L-NAME protects rats from diquat neurotoxcity", volume = "19", number = "4", pages = "666-672", url = "https://hdl.handle.net/21.15107/rcub_farfar_1663" }
Đukić, M., Jovanović, M., Ninković, M., Stevanović, I., Ćurčić, M., Topić, A., Vujanović, D.,& Đurđević, D.. (2012). Intrastriatal pre-treatment with L-NAME protects rats from diquat neurotoxcity. in Annals of Agricultural and Environmental Medicine Inst Agricultural Medicine, Lublin., 19(4), 666-672. https://hdl.handle.net/21.15107/rcub_farfar_1663
Đukić M, Jovanović M, Ninković M, Stevanović I, Ćurčić M, Topić A, Vujanović D, Đurđević D. Intrastriatal pre-treatment with L-NAME protects rats from diquat neurotoxcity. in Annals of Agricultural and Environmental Medicine. 2012;19(4):666-672. https://hdl.handle.net/21.15107/rcub_farfar_1663 .
Đukić, Mirjana, Jovanović, Marina, Ninković, Milica, Stevanović, Ivana, Ćurčić, Marijana, Topić, Aleksandra, Vujanović, Dragana, Đurđević, Dragan, "Intrastriatal pre-treatment with L-NAME protects rats from diquat neurotoxcity" in Annals of Agricultural and Environmental Medicine, 19, no. 4 (2012):666-672, https://hdl.handle.net/21.15107/rcub_farfar_1663 .