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The Early-Life «Programming» of Anxiety-Driven Behaviours in Adulthood as a Product of Predator-Driven Evolution. Evol Biol 2022. [DOI: 10.1007/s11692-022-09571-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Suhovskih AV, Molodykh OP, Ushakov VS, Politko MO, Sokolov DK, Koldysheva EV, Grigorieva EV. Long-Term Exposure to Temozolomide Affects Locomotor Activity and Cartilage Structure of Elderly Experimental Rats. Biomedicines 2020; 8:biomedicines8120541. [PMID: 33255948 PMCID: PMC7760849 DOI: 10.3390/biomedicines8120541] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 11/16/2020] [Accepted: 11/24/2020] [Indexed: 11/16/2022] Open
Abstract
Chemotherapy with temozolomide (TMZ) is an essential part of anticancer therapy of various malignant tumours; however, its long-term effects on patients’ health and life quality need to be further investigated. Here, we studied the effects of TMZ and/or companion drug dexamethasone (DXM) on the locomotor activity and cartilage structure of elderly Wistar rats (n = 40). Long-term TMZ treatment selectively inhibited the horizontal, but not vertical locomotor activity of the rats (6.7-fold, p < 0.01) and resulted in delamination of the superficial epiphyseal cartilage of the femoral epiphysis of knee joints, a 2-fold decrease in mean thickness of epiphyseal cartilage (p < 0.001), and changes in the proliferative and maturation cartilage zones ratio. The simultaneous use of DXM attenuated TMZ-induced changes in cartilage thickness and integrity and compensated the decrease in horizontal locomotor activity of experimental animals. Nevertheless, combined TMZ/DXM treatment still significantly affected the structure of proximal tibial, but not distal femoral epiphysis of knee joints of the rats. These changes were accompanied by the increased content of total glycosaminoglycans (GAGs) and their partial re-localisation from chondrocytes into tissue matrix, as well as the decrease in sulfated GAGs content in both compartments. Taken together, the results demonstrate that long-term treatment with TMZ results in a significant decrease in locomotor activity of elderly Wistar rats and the reorganisation of their knee joint cartilage structure, while DXM treatment attenuates those effects. So, use of DXM or chondroprotective drugs might be beneficial to maintain quality of life for TMZ-treated cancer patients.
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Affiliation(s)
- Anastasia V. Suhovskih
- Department of Molecular Biology and Biophysics, Federal Research Center of Fundamental and Translational Medicine, 2/12, Timakova str., 630117 Novosibirsk, Russia; (V.S.U.); (M.O.P.); (D.K.S.); (E.V.G.)
- Department of Natural Sciences, V. Zelman Institute for Medicine and Psychology, Novosibirsk State University, 1, Pirogova str., 630090 Novosibirsk, Russia
- Correspondence: ; Tel.: +7-383-333-5011
| | - Olga P. Molodykh
- Department of Molecular Pathology and Pathomorphology, Federal Research Center of Fundamental and Translational Medicine, 2, Timakova str., 630117 Novosibirsk, Russia; (O.P.M.); (E.V.K.)
| | - Victor S. Ushakov
- Department of Molecular Biology and Biophysics, Federal Research Center of Fundamental and Translational Medicine, 2/12, Timakova str., 630117 Novosibirsk, Russia; (V.S.U.); (M.O.P.); (D.K.S.); (E.V.G.)
| | - Maxim O. Politko
- Department of Molecular Biology and Biophysics, Federal Research Center of Fundamental and Translational Medicine, 2/12, Timakova str., 630117 Novosibirsk, Russia; (V.S.U.); (M.O.P.); (D.K.S.); (E.V.G.)
| | - Dmitry K. Sokolov
- Department of Molecular Biology and Biophysics, Federal Research Center of Fundamental and Translational Medicine, 2/12, Timakova str., 630117 Novosibirsk, Russia; (V.S.U.); (M.O.P.); (D.K.S.); (E.V.G.)
| | - Elena V. Koldysheva
- Department of Molecular Pathology and Pathomorphology, Federal Research Center of Fundamental and Translational Medicine, 2, Timakova str., 630117 Novosibirsk, Russia; (O.P.M.); (E.V.K.)
| | - Elvira V. Grigorieva
- Department of Molecular Biology and Biophysics, Federal Research Center of Fundamental and Translational Medicine, 2/12, Timakova str., 630117 Novosibirsk, Russia; (V.S.U.); (M.O.P.); (D.K.S.); (E.V.G.)
- Department of Natural Sciences, V. Zelman Institute for Medicine and Psychology, Novosibirsk State University, 1, Pirogova str., 630090 Novosibirsk, Russia
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Piavchenko G, Alekseev A, Stelmashchuk O, Seryogina E, Zherebtsov E, Kuznetsova E, Dunaev A, Volkov Y, Kuznetsov S. A complex morphofunctional approach for zinc toxicity evaluation in rats. Heliyon 2020; 6:e03768. [PMID: 32337380 PMCID: PMC7177034 DOI: 10.1016/j.heliyon.2020.e03768] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 01/16/2020] [Accepted: 04/06/2020] [Indexed: 11/18/2022] Open
Abstract
Anthropogenic activity causes the introduction of zinc compounds into the biological cycle in mining and processing sites and its accumulation in organs and tissues, causing systemic toxicity. A cumulative effect of zinc is predominantly neurotoxic and it also affects the respiratory, cardiovascular and digestive systems. This study evaluates the effects of single-dose intragastric administration of 100 mg/kg zinc succinate on the structure and function of organs and tissues in male Wistar rats 1 month after treatment. The presented morphofunctional approach for the toxicity evaluation included the study of behavioral responses using the automated Laboras® complex, fluorescent spectral analysis of the NADH and FAD activity and histological evaluation of animal organs and tissues. The results of the behavioral activity assessment showed a significant decrease in animals' motor activity, whereas the fluorescence spectra analysis demonstrated a decrease in coenzyme NADH without the reduction of FAD levels. We detected toxic and dystrophic changes in the cerebral cortex, heart, lungs and liver tissues. Our original multiparametric approach enables a comprehensive assessment of the long-term toxic effects of the metal salts such as zinc succinate, especially in the cerebral cortex at the doses much lower than the acute LD50 reported for the common zinc salts.
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Affiliation(s)
- Gennadii Piavchenko
- I.M. Sechenov First Moscow State Medical University (Sechenov University), Russian Federation
- Pharmaceutical R&D Enterprise “Retinoids”, Russian Federation
- Orel State University named after I.S. Turgenev, Russian Federation
| | | | | | | | - Evgeny Zherebtsov
- Orel State University named after I.S. Turgenev, Russian Federation
- University of Oulu, Finland
| | - Elena Kuznetsova
- Orel State University named after I.S. Turgenev, Russian Federation
| | - Andrey Dunaev
- Orel State University named after I.S. Turgenev, Russian Federation
- University of Oulu, Finland
| | - Yuri Volkov
- I.M. Sechenov First Moscow State Medical University (Sechenov University), Russian Federation
- School of Medicine and Trinity Translational Medicine Institute, The University of Dublin, Trinity College, Ireland
| | - Sergey Kuznetsov
- I.M. Sechenov First Moscow State Medical University (Sechenov University), Russian Federation
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Bulygina VV, Kalinina TS, Lanshakov DA, Dygalo NN. Expression of Neurotrophic Factor 3 in the Hippocampus of Neonatal Rats after Administration of Dexamethasone. NEUROCHEM J+ 2019. [DOI: 10.1134/s181971241903005x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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5
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Bannova AV, Menshanov PN, Dygalo NN. The Effect of Lithium Chloride on the Levels of Brain-Derived Neurotrophic Factor in the Neonatal Brain. NEUROCHEM J+ 2019. [DOI: 10.1134/s1819712419030048] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Estimation of an area between the baseline and the effect curve parameter for lactate levels in the hippocampi of neonatal rats during anesthesia. J Pharm Biomed Anal 2018; 150:327-332. [DOI: 10.1016/j.jpba.2017.12.021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Revised: 12/08/2017] [Accepted: 12/09/2017] [Indexed: 11/17/2022]
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Menshanov PN, Bannova AV, Dygalo NN. Anoxia ameliorates the dexamethasone-induced neurobehavioral alterations in the neonatal male rat pups. Horm Behav 2017; 87:122-128. [PMID: 27865789 DOI: 10.1016/j.yhbeh.2016.11.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Revised: 11/11/2016] [Accepted: 11/14/2016] [Indexed: 01/03/2023]
Abstract
Glucocorticoids and hypoxia are two essential factors affecting the brain development during labor and delivery. In addition to the neurobehavioral alterations induced separately by these factors, glucocorticoids can attenuate the deleterious consequences of severe hypoxia-ischemia on the brain development, acting as a neuroprotective agent in combination with hypoxia. The role of hypoxia in the combined action with corticosteroids is less clear. Severe hypoxia-ischemia results in the massive activation of caspase-3, masking any other effects of hypoxia on the neonatal brain exposed to glucocorticoids. As a result, the effects of mild hypoxia on the developing brain pretreated with glucocorticoids remain unclear. To analyze this problem, 2-day-old male rats were treated with dexamethasone (DEX) before the subsequent exposure to mild 10-min anoxia or normoxia. The treatment with only DEX resulted in the delay in the development of the negative geotaxis reaction and in the decrease in locomotor activity of the neonatal male pups. The mild anoxic event attenuated these DEX-induced neurobehavioral alterations. The treatment with DEX, but not the mild anoxic exposure alone, resulted in the delayed upregulation of active caspase-3 in the prefrontal cortex and in the brainstem of the male pups. This glucocorticoid-induced upregulation of active caspase-3 was prevented by the anoxic event. The present findings evidence that mild anoxia is capable of ameliorating the glucocorticoid-induced neurodevelopmental alterations in the neonatal rats if the artificial or the naturally occurring increase in the levels of glucocorticoids occurred just before the episode of hypoxia.
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Affiliation(s)
- Petr N Menshanov
- Functional Neurogenomics Laboratory, Institute of Cytology and Genetics, Russian Academy of Science, Novosibirsk, Russian Federation; Department of Natural Sciences, Novosibirsk State University, Novosibirsk, Russian Federation.
| | - Anita V Bannova
- Functional Neurogenomics Laboratory, Institute of Cytology and Genetics, Russian Academy of Science, Novosibirsk, Russian Federation
| | - Nikolay N Dygalo
- Functional Neurogenomics Laboratory, Institute of Cytology and Genetics, Russian Academy of Science, Novosibirsk, Russian Federation; Department of Natural Sciences, Novosibirsk State University, Novosibirsk, Russian Federation
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Yates NJ, Robertson D, Rodger J, Martin-Iverson MT. Effects of Neonatal Dexamethasone Exposure on Adult Neuropsychiatric Traits in Rats. PLoS One 2016; 11:e0167220. [PMID: 27936175 PMCID: PMC5147874 DOI: 10.1371/journal.pone.0167220] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Accepted: 11/10/2016] [Indexed: 11/18/2022] Open
Abstract
The effects of early life stress in utero or in neonates has long-term consequences on hypothalamic-pituitary-adrenal (HPA) stress axis function and neurodevelopment. These effects extend into adulthood and may underpin a variety of mental illnesses and be related to various developmental and cognitive changes. We examined the potential role of neonatal HPA axis activation on adult psychopathology and dopamine sensitivity in the mature rat using neonatal exposure to the synthetic glucocorticoid receptor agonist and stress hormone, dexamethasone. We utilized a comprehensive battery of assessments for behaviour, brain function and gene expression to determine if elevated early life HPA activation is associated with adult-onset neuropsychiatric traits. Dexamethasone exposure increased startle reactivity under all conditions tested, but decreased sensitivity of sensorimotor gating to dopaminergic disruption–contrasting with what is observed in several neuropsychiatric diseases. Under certain conditions there also appeared to be mild long-term changes in stress and anxiety-related behaviours with neonatal dexamethasone exposure. Electrophysiology revealed that there were no consistent neuropsychiatric abnormalities in auditory processing or resting state brain function with dexamethasone exposure. However, neonatal dexamethasone altered auditory cortex glucocorticoid activation, and auditory cortex synchronization. Our results indicate that neonatal HPA axis activation by dexamethasone alters several aspects of adult brain function and behaviour and may induce long-term changes in emotional stress-reactivity. However, neonatal dexamethasone exposure is not specifically related to any particular neuropsychiatric disease.
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Affiliation(s)
- Nathanael J. Yates
- School of Animal Biology, Faculty of Science, The University of Western Australia, Crawley, Western Australia, Australia
- * E-mail:
| | - Donald Robertson
- School of Anatomy, Physiology, and Human Biology, Faculty of Science, The University of Western Australia, Crawley, Western Australia, Australia
| | - Jennifer Rodger
- School of Animal Biology, Faculty of Science, The University of Western Australia, Crawley, Western Australia, Australia
| | - Mathew T. Martin-Iverson
- School of Medicine and Pharmacology, Faculty of Medicine, Dentistry and Health Sciences, The University of Western Australia, Crawley, Western Australia, Australia
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Lanshakov DA, Sukhareva EV, Kalinina TS, Dygalo NN. Dexamethasone-induced acute excitotoxic cell death in the developing brain. Neurobiol Dis 2016; 91:1-9. [DOI: 10.1016/j.nbd.2016.02.009] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Revised: 01/12/2016] [Accepted: 02/07/2016] [Indexed: 01/04/2023] Open
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Menshanov PN, Bannova AV, Dygalo NN. Toxic Effects of Lithium Chloride during Early Neonatal Period of Rat Development. Bull Exp Biol Med 2016; 160:459-61. [PMID: 26906201 DOI: 10.1007/s10517-016-3196-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2014] [Indexed: 11/28/2022]
Abstract
Lithium chloride (85, 255, or 255+127 μg/kg) or dexamethasone (0.2 or 2 mg/kg) were subcutaneously injected to 3-day-old rat pups, whose excretory system did not yet attain functional maturity. Both agents retarded the growth of rat pups and delayed the appearance of negative geotaxis. LD50 and therapeutic index of lithium chloride were 255 μg/kg and TI≤3, respectively. Thus, lithium salts even in low doses can be highly toxic for the developing organism.
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Affiliation(s)
- P N Menshanov
- Department of Physiology, Novosibirsk State University, Novosibirsk, Russia.
| | - A V Bannova
- Department of Functional Neurogenomics, Institute of Cytology and Genetics, Siberian Division of the Russian Academy of Sciences, Novosibirsk, Russia
| | - N N Dygalo
- Department of Physiology, Novosibirsk State University, Novosibirsk, Russia
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Bannova AV, Men’shanov PN, Dygalo NN. The effects of glucocorticoids on the ratio between brain-derived neurotrophic factor and its proform in the neonatal hippocampus. NEUROCHEM J+ 2015. [DOI: 10.1134/s1819712415040054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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12
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Neonatal dexamethasone accelerates spreading depression in the rat, and antioxidant vitamins counteract this effect. Brain Res 2014; 1591:93-101. [DOI: 10.1016/j.brainres.2014.09.075] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2014] [Revised: 09/29/2014] [Accepted: 09/30/2014] [Indexed: 12/27/2022]
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