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Illouz T, Ascher LAB, Madar R, Okun E. Unbiased analysis of spatial learning strategies in a modified Barnes maze using convolutional neural networks. Sci Rep 2024; 14:15944. [PMID: 38987437 PMCID: PMC11237060 DOI: 10.1038/s41598-024-66855-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Accepted: 07/04/2024] [Indexed: 07/12/2024] Open
Abstract
Assessment of spatial learning abilities is central to behavioral neuroscience and a useful tool for animal model validation and drug development. However, biases introduced by the apparatus, environment, or experimentalist represent a critical challenge to the test validity. We have recently developed the Modified Barnes Maze (MBM) task, a spatial learning paradigm that overcomes inherent behavioral biases of animals in the classical Barnes maze. The specific combination of spatial strategies employed by mice is often considered representative of the level of cognitive resources used. Herein, we have developed a convolutional neural network-based classifier of exploration strategies in the MBM that can effectively provide researchers with enhanced insights into cognitive traits in mice. Following validation, we compared the learning performance of female and male C57BL/6J mice, as well as that of Ts65Dn mice, a model of Down syndrome, and 5xFAD mice, a model of Alzheimer's disease. Male mice exhibited more effective navigation abilities than female mice, reflected in higher utilization of effective spatial search strategies. Compared to wildtype controls, Ts65Dn mice exhibited delayed usage of spatial strategies despite similar success rates in completing this spatial task. 5xFAD mice showed increased usage of non-spatial strategies such as Circling that corresponded to higher latency to reach the target and lower success rate. These data exemplify the need for deeper strategy classification tools in dissecting complex cognitive traits. In sum, we provide a machine-learning-based strategy classifier that extends our understanding of mice's spatial learning capabilities while enabling a more accurate cognitive assessment.
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Affiliation(s)
- Tomer Illouz
- The Leslie and Susan Gonda Multidisciplinary Brain Research Center, Bar-Ilan University, 5290002, Ramat Gan, Israel
- The Paul Feder Laboratory on Alzheimer's Disease Research, Bar-Ilan University, 5290002, Ramat Gan, Israel
| | - Lyn Alice Becker Ascher
- The Leslie and Susan Gonda Multidisciplinary Brain Research Center, Bar-Ilan University, 5290002, Ramat Gan, Israel
- The Paul Feder Laboratory on Alzheimer's Disease Research, Bar-Ilan University, 5290002, Ramat Gan, Israel
| | - Ravit Madar
- The Leslie and Susan Gonda Multidisciplinary Brain Research Center, Bar-Ilan University, 5290002, Ramat Gan, Israel
- The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, 5290002, Ramat Gan, Israel
- The Paul Feder Laboratory on Alzheimer's Disease Research, Bar-Ilan University, 5290002, Ramat Gan, Israel
| | - Eitan Okun
- The Leslie and Susan Gonda Multidisciplinary Brain Research Center, Bar-Ilan University, 5290002, Ramat Gan, Israel.
- The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, 5290002, Ramat Gan, Israel.
- The Paul Feder Laboratory on Alzheimer's Disease Research, Bar-Ilan University, 5290002, Ramat Gan, Israel.
- The Leslie and Susan Gonda Multidisciplinary Brain Research Center, The Mina and Everard Goodman Faculty of Life Sciences, Bar Ilan University, Building 901, Room 312, 5290002, Ramat Gan, Israel.
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Ghaffari MK, Rafati A, Karbalaei N, Haghani M, Nemati M, Sefati N, Namavar MR. The effect of intra-nasal co-treatment with insulin and growth factor-rich serum on behavioral defects, hippocampal oxidative-nitrosative stress, and histological changes induced by icv-STZ in a rat model. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2024; 397:4833-4849. [PMID: 38157024 DOI: 10.1007/s00210-023-02899-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Accepted: 12/09/2023] [Indexed: 01/03/2024]
Abstract
Impaired insulin and growth factor functions are thought to drive many alterations in neurodegenerative diseases like dementia and seem to contribute to oxidative stress and inflammatory responses. Recent studies revealed that nasal growth factor therapy could induce neuronal and oligodendroglia protection in rodent brain damage induction models. Impairment of several growth factors signaling was reported in neurodegenerative diseases. So, in the present study, we examined the effects of intranasal co-treatment of insulin and a pool of growth factor-rich serum (GFRS) which separated from activated platelets on memory, and behavioral defects induced by intracerebroventricular streptozotocin (icv-STZ) rat model also investigated changes in the hippocampal oxidative-nitrosative state and histology. We found that icv-STZ injection (3 mg/kg bilaterally) impairs spatial learning and memory in Morris Water Maze, leads to anxiogenic-like behavior in the open field arena, and induces oxidative-nitrosative stress, neuroinflammation, and neuronal/oligodendroglia death in the hippocampus. GFRS (1µl/kg, each other day, 9 doses) and regular insulin (4 U/40 µl, daily, 18 doses) treatments improved learning, memory, and anxiogenic behaviors. The present study showed that co-treatment (GFRS + insulin with respective dose) has more robust protection against hippocampal oxidative-nitrosative stress, neuroinflammation, and neuronal/oligodendroglia survival in comparison with the single therapy. Memory and behavioral improvements in the co-treatment of insulin and GFRS could be attributed to their effects on neuronal/oligodendroglia survival and reduction of neuroinflammation in the hippocampus.
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Affiliation(s)
- Mahdi Khorsand Ghaffari
- Department of Physiology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ali Rafati
- Department of Physiology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
- Histomorphometry and Stereology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Narges Karbalaei
- Department of Physiology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
- Histomorphometry and Stereology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Masoud Haghani
- Department of Physiology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
- Histomorphometry and Stereology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Marzieh Nemati
- Endocrinology and Metabolism Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Niloofar Sefati
- Department of Anatomical Sciences, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohammad Reza Namavar
- Histomorphometry and Stereology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
- Department of Anatomical Sciences, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
- Clinical Neurology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
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Gober IG, Russell AL, Shick TJ, Vagni VA, Carlson JC, Kochanek PM, Wagner AK. Exploratory assessment of the effect of systemic administration of soluble glycoprotein 130 on cognitive performance and chemokine levels in a mouse model of experimental traumatic brain injury. J Neuroinflammation 2024; 21:149. [PMID: 38840141 PMCID: PMC11155101 DOI: 10.1186/s12974-024-03129-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Accepted: 05/12/2024] [Indexed: 06/07/2024] Open
Abstract
Uncontrolled neuroinflammation mediates traumatic brain injury (TBI) pathology and impairs recovery. Interleukin-6 (IL-6), a pleiotropic inflammatory regulator, is associated with poor clinical TBI outcomes. IL-6 operates via classical-signaling through membrane-bound IL-6 receptor (IL-6R) and trans-signaling through soluble IL-6 receptor (s)IL-6R. IL-6 trans-signaling specifically contributes to neuropathology, making it a potential precision therapeutic TBI target. Soluble glycoprotein 130 (sgp130) prevents IL-6 trans-signaling, sparing classical signaling, thus is a possible treatment. Mice received either controlled cortical impact (CCI) (6.0 ± 0.2 m/s; 2 mm; 50-60ms) or sham procedures. Vehicle (VEH) or sgp130-Fc was subcutaneously administered to sham (VEH or 1 µg) and CCI (VEH, 0.25 µg or 1 µg) mice on days 1, 4, 7, 10 and 13 post-surgery to assess effects on cognition [Morris Water Maze (MWM)] and ipsilateral hemisphere IL-6 related biomarkers (day 21 post-surgery). CCI + sgp130-Fc groups (0.25 µg and 1 µg) were combined for analysis given similar behavior/biomarker outcomes. CCI + VEH mice had longer latencies and path lengths to the platform and increased peripheral zone time versus Sham + VEH and Sham + sgp130-Fc mice, suggesting injury-induced impairments in learning and anxiety. CCI + sgp130-Fc mice had shorter platform latencies and path lengths and had decreased peripheral zone time, indicating a therapeutic benefit of sgp130-Fc after injury on learning and anxiety. Interestingly, Sham + sgp130-Fc mice had shorter platform latencies, path lengths and peripheral zone times than Sham + VEH mice, suggesting a beneficial effect of sgp130-Fc, independent of injury. CCI + VEH mice had increased brain IL-6 and decreased sgp130 levels versus Sham + VEH and Sham + sgp130-Fc mice. There was no treatment effect on IL-6, sIL6-R or sgp130 in Sham + VEH versus Sham + sgp130-Fc mice. There was also no treatment effect on IL-6 in CCI + VEH versus CCI + sgp130-Fc mice. However, CCI + sgp130-Fc mice had increased sIL-6R and sgp130 versus CCI + VEH mice, demonstrating sgp130-Fc treatment effects on brain biomarkers. Inflammatory chemokines (MIP-1β, IP-10, MIG) were increased in CCI + VEH mice versus Sham + VEH and Sham + sgp130-Fc mice. However, CCI + sgp130-Fc mice had decreased chemokine levels versus CCI + VEH mice. IL-6 positively correlated, while sgp130 negatively correlated, with chemokine levels. Overall, we found that systemic sgp130-Fc treatment after CCI improved learning, decreased anxiety and reduced CCI-induced brain chemokines. Future studies will explore sex-specific dosing and treatment mechanisms for sgp130-Fc therapy.
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Affiliation(s)
- Ian G Gober
- Department of Physical Medicine and Rehabilitation, School of Medicine, University of Pittsburgh, 3471 Fifth Avenue, Suite 910, Pittsburgh, PA, 15213, USA
- Safar Center for Resuscitation Research, John G. Rangos Research Center, Pittsburgh, PA, USA
| | - Ashley L Russell
- Department of Physical Medicine and Rehabilitation, School of Medicine, University of Pittsburgh, 3471 Fifth Avenue, Suite 910, Pittsburgh, PA, 15213, USA
- Safar Center for Resuscitation Research, John G. Rangos Research Center, Pittsburgh, PA, USA
| | - Tyler J Shick
- Department of Physical Medicine and Rehabilitation, School of Medicine, University of Pittsburgh, 3471 Fifth Avenue, Suite 910, Pittsburgh, PA, 15213, USA
- Safar Center for Resuscitation Research, John G. Rangos Research Center, Pittsburgh, PA, USA
| | - Vincent A Vagni
- Safar Center for Resuscitation Research, John G. Rangos Research Center, Pittsburgh, PA, USA
- Department of Critical Care Medicine, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Jenna C Carlson
- Department of Biostatistics, School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA
- Department of Human Genetics, School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA
| | - Patrick M Kochanek
- Safar Center for Resuscitation Research, John G. Rangos Research Center, Pittsburgh, PA, USA
- Department of Critical Care Medicine, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Amy K Wagner
- Department of Physical Medicine and Rehabilitation, School of Medicine, University of Pittsburgh, 3471 Fifth Avenue, Suite 910, Pittsburgh, PA, 15213, USA.
- Safar Center for Resuscitation Research, John G. Rangos Research Center, Pittsburgh, PA, USA.
- Center for Neuroscience, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA.
- Department of Neuroscience, School of Arts and Sciences, University of Pittsburgh, Pittsburgh, PA, USA.
- Clinical and Translational Science Institute, University of Pittsburgh, Pittsburgh, PA, USA.
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Suresh S, Vellapandian C. Cyanidin improves spatial memory and cognition in bisphenol A-induced rat model of Alzheimer's-like neuropathology by restoring canonical Wnt signaling. Toxicol Appl Pharmacol 2024; 487:116953. [PMID: 38705400 DOI: 10.1016/j.taap.2024.116953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2023] [Revised: 04/22/2024] [Accepted: 05/02/2024] [Indexed: 05/07/2024]
Abstract
INTRODUCTION Research has unveiled the neurotoxicity of Bisphenol A (BPA) linked to neuropathological traits of Alzheimer's disease (AD) through varied mechanisms. This study aims to investigate the neuroprotective properties of cyanidin, an anthocyanin, in an in vivo model of BPA-induced Alzheimer's-like neuropathology. METHODS Three-week-old Sprague-Dawley rats were randomly assigned to four groups: vehicle control, negative control (BPA exposure), low-dose cyanidin treatment (BPA + cyanidin 5 mg/kg), and high-dose cyanidin treatment (BPA + cyanidin 10 mg/kg). Spatial memory was assessed through behavioral tests, including the Y-maze, novel object recognition, and Morris water maze. After behavioral tests, animals were euthanized, and brain regions were examined for acetylcholinesterase inhibition, p-tau, Wnt3, GSK3β, and β-catenin levels, antioxidant activities, and histopathological changes. RESULTS BPA-exposed groups displayed memory impairments, while cyanidin-treated groups showed significant memory improvement (p < 0.0001). Cyanidin down regulated p-tau and glycogen synthase kinase-3β (GSK3β) and restored Wnt3 and β-catenin levels (p < 0.0001). Moreover, cyanidin exhibited antioxidant properties, elevating catalase and superoxide dismutase levels. The intervention significantly reduced the concentrations of acetylcholinesterase in the cortex and hippocampus in comparison to the groups treated with BPA (p < 0.0001). Significant gender-based disparities were not observed. CONCLUSION Cyanidin demonstrated potent neuroprotection against BPA-induced Alzheimer's-like neuropathology by enhancing antioxidant defenses, modulating tau phosphorylation by restoring the Wnt/β-catenin pathway, and ameliorating spatial memory deficits. This study highlights the therapeutic potential of cyanidin in countering neurotoxicity linked to BPA exposure.
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Affiliation(s)
- Swathi Suresh
- Department of Pharmacology, SRM College of Pharmacy, SRM Institute of Science and Technology, Kattankulathur, Chengalpattu, Tamil Nadu, India
| | - Chitra Vellapandian
- Department of Pharmacology, SRM College of Pharmacy, SRM Institute of Science and Technology, Kattankulathur, Chengalpattu, Tamil Nadu, India.
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Guarino A, Pignata P, Lovisari F, Asth L, Simonato M, Soukupova M. Cognitive comorbidities in the rat pilocarpine model of epilepsy. Front Neurol 2024; 15:1392977. [PMID: 38872822 PMCID: PMC11171745 DOI: 10.3389/fneur.2024.1392977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Accepted: 04/30/2024] [Indexed: 06/15/2024] Open
Abstract
Patients with epilepsy are prone to cognitive decline, depression, anxiety and other behavioral disorders. Cognitive comorbidities are particularly common and well-characterized in people with temporal lobe epilepsy, while inconsistently addressed in epileptic animals. Therefore, the aim of this study was to ascertain whether there is good evidence of cognitive comorbidities in animal models of epilepsy, in particular in the rat pilocarpine model of temporal lobe epilepsy. We searched the literature published between 1990 and 2023. The association of spontaneous recurrent seizures induced by pilocarpine with cognitive alterations has been evaluated by using various tests: contextual fear conditioning (CFC), novel object recognition (NOR), radial and T-maze, Morris water maze (MWM) and their variants. Combination of results was difficult because of differences in methodological standards, in number of animals employed, and in outcome measures. Taken together, however, the analysis confirmed that pilocarpine-induced epilepsy has an effect on cognition in rats, and supports the notion that this is a valid model for assessment of cognitive temporal lobe epilepsy comorbidities in preclinical research.
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Affiliation(s)
- Annunziata Guarino
- Department of Neuroscience and Rehabilitation, Section of Pharmacology, University of Ferrara, Ferrara, Italy
| | - Paola Pignata
- Department of Neuroscience and Rehabilitation, Section of Pharmacology, University of Ferrara, Ferrara, Italy
| | - Francesca Lovisari
- Department of Neuroscience and Rehabilitation, Section of Pharmacology, University of Ferrara, Ferrara, Italy
| | - Laila Asth
- Department of Neuroscience and Rehabilitation, Section of Pharmacology, University of Ferrara, Ferrara, Italy
| | - Michele Simonato
- Department of Neuroscience and Rehabilitation, Section of Pharmacology, University of Ferrara, Ferrara, Italy
- Division of Neuroscience, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Marie Soukupova
- Department of Neuroscience and Rehabilitation, Section of Pharmacology, University of Ferrara, Ferrara, Italy
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Lorenzini L, Zanella L, Sannia M, Baldassarro VA, Moretti M, Cescatti M, Quadalti C, Baldi S, Bartolucci G, Di Gloria L, Ramazzotti M, Clavenzani P, Costanzini A, De Giorgio R, Amedei A, Calzà L, Giardino L. Experimental colitis in young Tg2576 mice accelerates the onset of an Alzheimer's-like clinical phenotype. Alzheimers Res Ther 2024; 16:116. [PMID: 38773640 PMCID: PMC11110243 DOI: 10.1186/s13195-024-01471-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Accepted: 05/01/2024] [Indexed: 05/24/2024]
Abstract
Systemic inflammation and neuroinflammation affect the natural course of the sporadic form of Alzheimer's disease (AD), as supported by epidemiological and preclinical data, and several epidemiological studies indicate a higher prevalence of AD in patients with inflammatory bowel disease. In this study, we explored whether colitis induced by dextran sulfate sodium (DSS) in young, presymptomatic/preplaque mice worsens and/or anticipates age-dependent cognitive impairment in Tg2576, a widely used mouse model of AD. We demonstrated that DSS colitis induced in young Tg2576 mice anticipates the onset age of learning and memory deficit in the Morris water maze test. To explore potential mechanisms behind the acceleration of cognitive decline in Tg2576 mice by DSS colitis, we focused on gut microbiota, systemic inflammation and neuroinflammation markers. We observed a Firmicutes/Bacteroidetes ratio change in Tg2576 DSS animals comparable to that of elderly Tg2576 mice, suggesting accelerated microbiota aging in Tg2576 DSS mice, a change not observed in C57BL6 DSS mice. We also observed substantial differences between Tg2576 and WT mice in several inflammation and neuroinflammation-related parameters as early as 3 months of age, well before plaque deposition, a picture which evolved rapidly (between 3 and 5.5 months of age) in contrast to Tg2576 and WT littermates not treated with DSS. In detail, following induction of DSS colitis, WT and Tg2576 mice exhibited contrasting features in the expression level of inflammation-evoked astrocyte-associated genes in the hippocampus. No changes in microglial features occurred in the hippocampus between the experimental groups, whereas a reduced glial fibrillary acidic protein immunoreactivity was observed in Tg2576 vs. WT mice. This finding may reflect an atrophic, "loss-of-function" profile, further exacerbated by DSS where a decreased of GFAP mRNA expression level was detected. In conclusion, we suggest that as-yet unidentified peripheral mediators evoked by DSS colitis and involving the gut-brain axis emphasize an astrocyte "loss-of-function" profile present in young Tg2576 mice, leading to impaired synaptic morphological and functional integrity as a very early sign of AD.
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Affiliation(s)
- Luca Lorenzini
- Department of Veterinary Medical Sciences (DIMEVET), University of Bologna, Bologna, Italy
| | - Lorenzo Zanella
- Department of Veterinary Medical Sciences (DIMEVET), University of Bologna, Bologna, Italy
| | | | | | - Marzia Moretti
- Department of Veterinary Medical Sciences (DIMEVET), University of Bologna, Bologna, Italy
| | | | - Corinne Quadalti
- Department of Pharmacy and Biotechnology (FaBiT), University of Bologna, Via Tolara di Sopra 41/E, Bologna, 40064, Ozzano Emilia, Italy
| | - Simone Baldi
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Gianluca Bartolucci
- Department of Neuroscience, Psychology, Drug Research and Child Health NEUROFARBA, University of Florence, Florence, Italy
| | - Leandro Di Gloria
- Department of Biomedical, Experimental and Clinical Sciences "Mario Serio", University of Florence, Florence, Italy
| | - Matteo Ramazzotti
- Department of Biomedical, Experimental and Clinical Sciences "Mario Serio", University of Florence, Florence, Italy
| | - Paolo Clavenzani
- Department of Veterinary Medical Sciences (DIMEVET), University of Bologna, Bologna, Italy
| | - Anna Costanzini
- Department of Translational Medicine, University of Ferrara, Ferrara, Italy
| | - Roberto De Giorgio
- Department of Translational Medicine, University of Ferrara, Ferrara, Italy
| | - Amedeo Amedei
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Laura Calzà
- Department of Pharmacy and Biotechnology (FaBiT), University of Bologna, Via Tolara di Sopra 41/E, Bologna, 40064, Ozzano Emilia, Italy.
| | - Luciana Giardino
- Department of Veterinary Medical Sciences (DIMEVET), University of Bologna, Bologna, Italy
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Alveal-Mellado D, Giménez-Llort L. Use of Ordered Beta Regression Unveils Cognitive Flexibility Index and Longitudinal Cognitive Training Signatures in Normal and Alzheimer's Disease Pathological Aging. Brain Sci 2024; 14:501. [PMID: 38790478 PMCID: PMC11119991 DOI: 10.3390/brainsci14050501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Revised: 05/07/2024] [Accepted: 05/11/2024] [Indexed: 05/26/2024] Open
Abstract
Generalized linear mixed models (GLMMs) are a cornerstone data analysis strategy in behavioral research because of their robustness in handling non-normally distributed variables. Recently, their integration with ordered beta regression (OBR), a novel statistical tool for managing percentage data, has opened new avenues for analyzing continuous response data. Here, we applied this combined approach to investigate nuanced differences between the 3xTg-AD model of Alzheimer's disease (AD) and their C57BL/6 non-transgenic (NTg) counterparts with normal aging in a 5-day Morris Water Maze (MWM) test protocol. Our longitudinal study included 22 3xTg-AD mice and 15 NTg mice (both male and female) assessed at 12 and 16 months of age. By identifying and analyzing multiple swimming strategies during three different paradigms (cue, place task, and removal), we uncovered genotypic differences in all paradigms. Thus, the NTg group exhibited a higher percentage of direct search behaviors, while an association between circling episodes and 3xTg-AD animals was found. Furthermore, we also propose a novel metric-the "Cognitive Flexibility Index"-which proved sensitive in detecting sex-related differences. Overall, our integrated GLMMs-OBR approach provides a comprehensive insight into mouse behavior in the MWM test, shedding light on the effects of aging and AD pathology.
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Affiliation(s)
- Daniel Alveal-Mellado
- Institut de Neurociències, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Barcelona, Spain;
- Department of Psychiatry and Forensic Medicine, School of Medicine, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Barcelona, Spain
| | - Lydia Giménez-Llort
- Institut de Neurociències, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Barcelona, Spain;
- Department of Psychiatry and Forensic Medicine, School of Medicine, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Barcelona, Spain
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Li B, Shi X, Chen E, Wu X. Improvement effects of cyclic peptides from Annona squamosa on cognitive decline in neuroinflammatory mice. Food Sci Biotechnol 2024; 33:1437-1448. [PMID: 38585570 PMCID: PMC10992170 DOI: 10.1007/s10068-023-01441-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Revised: 08/26/2023] [Accepted: 09/19/2023] [Indexed: 04/09/2024] Open
Abstract
Cyclic peptides can resist enzymatic hydrolysis to pass through the intestine barrier, which may reduce the risk of mild cognition decline. But evidence is lacking on whether they work by alleviating neuroinflammation. A cylic peptide from Annona squamosa, Cylic(PIYAG), was biologically evaluated in vivo and in vitro. Cylic(PIYAG) enhanced the spatial memory ability of LPS-induced mice. And treatment with Cylic(PIYAG) markedly reduced the iNOS, MCP-1, TNF-α, and gp91phox expression induced by LPS. Cylic(PIYAG, 0.01, 0.05 and 0.2 μM) could significantly reduce the protein expression level of COX-2 and iNOS (P < 0.05) in BV2 cells. The concentration of Cylic(PIYAG) in blood reached a peak of 3.64 ± 1.22 μg/ml after intragastric administration in 1 h. And fluorescence microscope shows that Cylic(PIYAG) mainly locates and may play an anti-inflammatory role in the cytoplasm of microglia. This study demonstrates that the peptidic can prevent microglia activation, decrease the inflammatory reaction, improve the cognition of LPS-induced mice. Supplementary Information The online version contains supplementary material available at 10.1007/s10068-023-01441-8.
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Affiliation(s)
- Bo Li
- Neurology Department, Anqing Medical Center, Anhui Medical University, Anqing, China
| | - Xueying Shi
- Neurology Department, Anqing Medical Center, Anhui Medical University, Anqing, China
| | - Erhua Chen
- Clinical Nutrition Department, Anqing Hospital Affiliated to Anhui Medical University, Anqing, 246000 Anhui China
| | - Xiaocui Wu
- Department of Neurology, Graduate School, Anhui Medical University, Hefei, 230000 Anhui China
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Merola C, Caioni G, Bertolucci C, Lucon-Xiccato T, Savaşçı BB, Tait S, Casella M, Camerini S, Benedetti E, Perugini M. Embryonic and larval exposure to propylparaben induces developmental and long-term neurotoxicity in zebrafish model. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 912:168925. [PMID: 38040379 DOI: 10.1016/j.scitotenv.2023.168925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 11/23/2023] [Accepted: 11/25/2023] [Indexed: 12/03/2023]
Abstract
Parabens are preservatives found in cosmetics, processed foods, and medications. The harmful repercussions on the central nervous system by one of the most common parabens, propylparaben (PrP), are yet unknown, especially during development. In this study, the neurodevelopmental effects of PrP and long-term neurotoxicity were investigated in the zebrafish model, using an integrated approach. Zebrafish embryos were exposed to two different concentrations of PrP (10 and 1000 μg/L), then larvae were examined for their behavioral phenotypes (open-field behavior, startle response, and circadian rhythmicity) and relevant brain markers (cyp19a1b, pax6a, shank3a, and gad1b). Long-term behavioral and cognitive impacts on sociability, cerebral functional asymmetry and thigmotaxis were also examined on juveniles at 30 dpf and 60 dpf. Moreover, proteomics and gene expression analysis were assessed in brains of 60 dpf zebrafish. Interestingly, thigmotaxis was decreased by the high dose in larvae and increased by the low dose in juveniles. The expression of shank3a and gad1b genes was repressed by both PrP concentrations pointing to possible effects of PrP on neurodevelopment and synaptogenesis. Proteomics analysis evidenced alterations related to brain development and lipid metabolism. Overall, the results demonstrated that early-life exposure to PrP promotes developmental and persistent neurobehavioral alterations in the zebrafish model, affecting genes and protein levels possibly associated with brain diseases.
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Affiliation(s)
- Carmine Merola
- Department of Bioscience and Agro-Food and Environmental Technology, University of Teramo, Teramo, Italy.
| | - Giulia Caioni
- Department of Life, Health and Environmental Sciences, University of L'Aquila, L'Aquila, Italy.
| | - Cristiano Bertolucci
- Department of Life Sciences and Biotechnology, University of Ferrara, Ferrara, Italy.
| | - Tyrone Lucon-Xiccato
- Department of Life Sciences and Biotechnology, University of Ferrara, Ferrara, Italy.
| | - Beste Başak Savaşçı
- Department of Life Sciences and Biotechnology, University of Ferrara, Ferrara, Italy; Unit of Evolutionary Biology/Systematic Zoology, Institute for Biochemistry and Biology, University of Potsdam, Potsdam, Germany.
| | - Sabrina Tait
- Gender-specific prevention and health Unit, Center for Gender-Specific Medicine, Istituto Superiore di Sanità, Rome, Italy.
| | - Marialuisa Casella
- Mass Spectrometry Unit, Core Facilities, Istituto Superiore di Sanità, Rome, Italy.
| | - Serena Camerini
- Mass Spectrometry Unit, Core Facilities, Istituto Superiore di Sanità, Rome, Italy.
| | - Elisabetta Benedetti
- Department of Life, Health and Environmental Sciences, University of L'Aquila, L'Aquila, Italy.
| | - Monia Perugini
- Department of Bioscience and Agro-Food and Environmental Technology, University of Teramo, Teramo, Italy.
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Zeng J, Pei H, Wu H, Chen W, Du R, He Z. Palmatine attenuates LPS-induced neuroinflammation through the PI3K/Akt/NF-κB pathway. J Biochem Mol Toxicol 2024; 38:e23544. [PMID: 37815058 DOI: 10.1002/jbt.23544] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Revised: 08/16/2023] [Accepted: 09/26/2023] [Indexed: 10/11/2023]
Abstract
To investigate the key molecular mechanisms of palmatine for the treatment of neuroinflammation through modulation of a pathway using molecular docking, molecular dynamics (MD) simulation combined with network pharmacology, and animal experiments. Five alkaloid components were obtained from the traditional Chinese medicine Huangteng through literature mining. Molecular docking and MD simulation with acetylcholinesterase were used to screen palmatine. At the animal level, mice were injected with LPS intracerebrally to cause a neuroinflammatory model, and the Morris water maze experiment was performed to examine the learning memory of mice. Anxiety levels were tested using the autonomous activity behavior experiment with the open field and elevated behavior experiments. HE staining and Niss staining were performed on brain tissue sections to observe morphological lesions and apoptosis; serum was examined for inflammatory factors TNF-α, IL-6, and IL-1β; Western blot was performed to detect the protein expression. The expression of PI3K/AKT/NFkB signaling pathway-related proteins was examined by Western blot. The results of network pharmacology showed that the screening of palmatine activation containing the PI3K/Akt/NFkB signaling pathway exerts antineuroinflammatory effects. Results from behavioral experiments showed that Pal enhanced learning memory in model mice, improved anxiety behavior, and significantly improved brain damage caused by neuroinflammation. The results of HE staining and Niss staining of brain tissue sections showed that palmatine could alleviate morphological lesions and nucleus damage in brain tissue. Palmatine improved the levels of serum inflammatory factors TNF-α, IL-6, and IL-1β. SOD, MDA, CAT, ACH, and ACHE in the hippocampus were improved. Western blot results showed that palmatine administration ameliorated LPS-induced neuroinflammation through the PI3K/Akt/NFkB pathway.
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Affiliation(s)
- Jianning Zeng
- Department of Agriculture and Rural Affairs of Jilin Province Pharmacy and Pharmaceutical Science and Technology, College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun, Jilin, China
| | - Hongyan Pei
- Department of Agriculture and Rural Affairs of Jilin Province Pharmacy and Pharmaceutical Science and Technology, College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun, Jilin, China
| | - Hong Wu
- Department of Agriculture and Rural Affairs of Jilin Province Pharmacy and Pharmaceutical Science and Technology, College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun, Jilin, China
| | - Weijia Chen
- Department of Agriculture and Rural Affairs of Jilin Province Pharmacy and Pharmaceutical Science and Technology, College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun, Jilin, China
| | - Rui Du
- Department of Science and Technology of Jilin Province, Department of Traditional Chinese Medicine Industry in Xinjiang, Engineering Research Center for High-Efficiency Breeding and Product Development Technology of Sika Deer, Jilin, China
| | - Zhongmei He
- Department of Agriculture and Rural Affairs of Jilin Province Pharmacy and Pharmaceutical Science and Technology, College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun, Jilin, China
- Department of Science and Technology of Jilin Province, Department of Traditional Chinese Medicine Industry in Xinjiang, Engineering Research Center for High-Efficiency Breeding and Product Development Technology of Sika Deer, Jilin, China
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Korff A, Yang X, O’Donovan K, Gonzalez A, Teubner BJ, Nakamura H, Messing J, Yang F, Carisey AF, Wang YD, Patni T, Sheppard H, Zakharenko SS, Chook YM, Taylor JP, Kim HJ. A murine model of hnRNPH2-related neurodevelopmental disorder reveals a mechanism for genetic compensation by Hnrnph1. J Clin Invest 2023; 133:e160309. [PMID: 37463454 PMCID: PMC10348767 DOI: 10.1172/jci160309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 05/24/2023] [Indexed: 07/20/2023] Open
Abstract
Mutations in HNRNPH2 cause an X-linked neurodevelopmental disorder with features that include developmental delay, motor function deficits, and seizures. More than 90% of patients with hnRNPH2 have a missense mutation within or adjacent to the nuclear localization signal (NLS) of hnRNPH2. Here, we report that hnRNPH2 NLS mutations caused reduced interaction with the nuclear transport receptor Kapβ2 and resulted in modest cytoplasmic accumulation of hnRNPH2. We generated 2 knockin mouse models with human-equivalent mutations in Hnrnph2 as well as Hnrnph2-KO mice. Knockin mice recapitulated clinical features of the human disorder, including reduced survival in male mice, impaired motor and cognitive functions, and increased susceptibility to audiogenic seizures. In contrast, 2 independent lines of Hnrnph2-KO mice showed no detectable phenotypes. Notably, KO mice had upregulated expression of Hnrnph1, a paralog of Hnrnph2, whereas knockin mice failed to upregulate Hnrnph1. Thus, genetic compensation by Hnrnph1 may counteract the loss of hnRNPH2. These findings suggest that HNRNPH2-related disorder may be driven by a toxic gain of function or a complex loss of HNRNPH2 function with impaired compensation by HNRNPH1. The knockin mice described here are an important resource for preclinical studies to assess the therapeutic benefit of gene replacement or knockdown of mutant hnRNPH2.
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Affiliation(s)
- Ane Korff
- Department of Cell and Molecular Biology, St. Jude Children’s Research Hospital, Memphis, Tennessee, USA
| | - Xiaojing Yang
- Department of Cell and Molecular Biology, St. Jude Children’s Research Hospital, Memphis, Tennessee, USA
| | - Kevin O’Donovan
- Department of Cell and Molecular Biology, St. Jude Children’s Research Hospital, Memphis, Tennessee, USA
| | - Abner Gonzalez
- Department of Pharmacology, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | | | - Haruko Nakamura
- Department of Cell and Molecular Biology, St. Jude Children’s Research Hospital, Memphis, Tennessee, USA
| | - James Messing
- Department of Cell and Molecular Biology, St. Jude Children’s Research Hospital, Memphis, Tennessee, USA
| | - Fen Yang
- Department of Cell and Molecular Biology, St. Jude Children’s Research Hospital, Memphis, Tennessee, USA
| | - Alexandre F. Carisey
- Department of Cell and Molecular Biology, St. Jude Children’s Research Hospital, Memphis, Tennessee, USA
| | - Yong-Dong Wang
- Department of Cell and Molecular Biology, St. Jude Children’s Research Hospital, Memphis, Tennessee, USA
| | | | - Heather Sheppard
- Department of Pathology, St. Jude Children’s Research Hospital, Memphis, Tennessee, USA
| | | | - Yuh Min Chook
- Department of Pharmacology, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - J. Paul Taylor
- Department of Cell and Molecular Biology, St. Jude Children’s Research Hospital, Memphis, Tennessee, USA
- Howard Hughes Medical Institute, Chevy Chase, Maryland, USA
| | - Hong Joo Kim
- Department of Cell and Molecular Biology, St. Jude Children’s Research Hospital, Memphis, Tennessee, USA
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12
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EKİNALAN KAYHAN H, OKUDAN N, BELVİRANLI M. Comparison of the effect of postweaning social isolation, enriched environment, and exercise training on learning and memory functions in rats. Turk J Med Sci 2023; 53:1412-1420. [PMID: 38812994 PMCID: PMC10763796 DOI: 10.55730/1300-0144.5708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 10/26/2023] [Accepted: 06/21/2023] [Indexed: 05/31/2024] Open
Abstract
Background/aim To assess the effects of postweaning social isolation, an enriched environment, and exercise training on learning and memory functions in rats, as well as their relation with the brain-derived neurotrophic factor (BDNF) and nerve growth factor (NGF) concentrations in the hippocampus. Materials and methods Randomly assigned into 4 groups were 35 female postweaning rats (25 day old), as the control (C), social isolation (SI), enriched environment (EE), and exercise training (E) groups. The SI and the EE groups were housed under their specific conditions and the E and the C groups were housed under standard conditions for 6 weeks. The rats in the E group swam for 60 min/day, 5 days a week, for 6 weeks. After 6 weeks, the rats were evaluated in the Morris water maze (MWM). Following MWM assessment, hippocampal tissue and blood samples were taken to measure the BDNF and NGF. Results According to the results of the MWM probe trial session, the thigmotaxis behavior was higher in the SI group compared to the C group (p < 0,05). Furthermore, the time spent in the target quadrant (quadrant with an escape platform) was lower in the SI group compared to the EE group (p < 0.05). The BDNF and NGF levels in the hippocampus and plasma were not different between the groups (p < 0.05). Conclusion Postweaning social isolation may increase thigmotaxis behaviors. Postweaning social isolation, enriched environment, and exercise training did not affect the spatial learning, memory function, hippocampal BDNF or NGF levels in female rats.
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Affiliation(s)
- Hatice EKİNALAN KAYHAN
- Department of Radiotherapy, Vocational School of Health Services, Ankara University, Ankara,
Turkiye
| | - Nilsel OKUDAN
- Department of Physiology, Faculty of Medicine, Selçuk University, Konya,
Turkiye
| | - Muaz BELVİRANLI
- Department of Physiology, Faculty of Medicine, Selçuk University, Konya,
Turkiye
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13
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Sánchez CQ, Schmitt FW, Curdt N, Westhoff AC, Bänfer IWH, Bayer TA, Bouter Y. Search Strategy Analysis of 5xFAD Alzheimer Mice in the Morris Water Maze Reveals Sex- and Age-Specific Spatial Navigation Deficits. Biomedicines 2023; 11:biomedicines11020599. [PMID: 36831135 PMCID: PMC9953202 DOI: 10.3390/biomedicines11020599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 02/03/2023] [Accepted: 02/14/2023] [Indexed: 02/22/2023] Open
Abstract
Spatial disorientation and navigational impairments are not only some of the first memory deficits in Alzheimer's disease, but are also very disease-specific. In rodents, the Morris Water Maze is used to investigate spatial navigation and memory. Here, we examined the spatial memory in the commonly used 5xFAD Alzheimer mouse model in a sex- and age-dependent manner. Our findings show first spatial learning deficits in 7-month-old female 5xFAD and 12-month-old male 5xFAD mice, respectively. While the assessment of spatial working memory using escape latencies provides a global picture of memory performance, it does not explain how an animal solves a spatial task. Therefore, a detailed analysis of swimming strategies was performed to better understand the behavioral differences between 5xFAD and WT mice. 5xFAD mice used a qualitatively and quantitatively different search strategy pattern than wildtype animals that used more non-spatial strategies and showed allocentric-specific memory deficits. Furthermore, a detailed analysis of swimming strategies revealed allocentric memory deficits in the probe trial in female 3-month-old and male 7-month-old 5xFAD animals before the onset of severe reference memory deficits. Overall, we could demonstrate that spatial navigation deficits in 5xFAD mice are age- and sex-dependent, with female mice being more severely affected. In addition, the implementation of a search strategy classification system allowed an earlier detection of behavioral differences and therefore could be a powerful tool for preclinical drug testing in the 5xFAD model.
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Affiliation(s)
- Carolina Quintanilla Sánchez
- Department of Psychiatry and Psychotherapy, Division of Molecular Psychiatry, University Medical Center (UMG), Georg-August-University, 37075 Goettingen, Germany
| | - Franziska W. Schmitt
- Department of Psychiatry and Psychotherapy, Division of Molecular Psychiatry, University Medical Center (UMG), Georg-August-University, 37075 Goettingen, Germany
| | - Nadine Curdt
- Department of Psychiatry and Psychotherapy, Division of Molecular Psychiatry, University Medical Center (UMG), Georg-August-University, 37075 Goettingen, Germany
| | - Anna Celine Westhoff
- Department of Psychiatry and Psychotherapy, Division of Molecular Psychiatry, University Medical Center (UMG), Georg-August-University, 37075 Goettingen, Germany
| | - Irina Wanda Helene Bänfer
- Department of Psychiatry and Psychotherapy, Division of Molecular Psychiatry, University Medical Center (UMG), Georg-August-University, 37075 Goettingen, Germany
| | - Thomas A. Bayer
- Department of Psychiatry and Psychotherapy, Division of Molecular Psychiatry, University Medical Center (UMG), Georg-August-University, 37075 Goettingen, Germany
| | - Yvonne Bouter
- Department of Psychiatry and Psychotherapy, Division of Molecular Psychiatry, University Medical Center (UMG), Georg-August-University, 37075 Goettingen, Germany
- Department of Nuclear Medicine, University Medical Center Göttingen (UMG), 37075 Goettingen, Germany
- Correspondence:
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Zhang LM, Wu ZY, Liu JZ, Li Y, Lv JM, Wang LY, Shan YD, Song RX, Miao HT, Zhang W, Zhang DX. Subanesthetic dose of S-ketamine improved cognitive dysfunction via the inhibition of hippocampal astrocytosis in a mouse model of post-stroke chronic stress. J Psychiatr Res 2023; 158:1-14. [PMID: 36542981 DOI: 10.1016/j.jpsychires.2022.12.010] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 10/21/2022] [Accepted: 12/10/2022] [Indexed: 12/23/2022]
Abstract
Post-stroke chronic stress (PSCS) is generally associated with the poorer recovery and more pronounced cognitive dysfunction. Recent evidence has implied that S-ketamine can reduce suicidal ideation in treatment-resistant depression. In this current study, we aimed to investigate whether the administration of S-ketamine ameliorated cognitive deficits under PSCS conditions, which was established by a model combining middle cerebral artery occlusion (MCAO) and chronic restraint stress. Our data suggested that mice exposed to PSCS exhibited depression-like behavior and cognitive impairment, which coincided with astrocytosis as indicated by increased GFAP-positive cells and impairment of long-time potentiation (LTP) in the hippocampal CA1. Subanesthetic doses (10 mg/kg) of S-ketamine have significantly mitigated depression-like behaviors, cognitive deficits and LTP impairment, reduced astrocytosis, excessive GABA, and inflammatory factors, including NLRP3 and IL-18 in astrocytes in the CA1. Besides, neuroprotective effects induced by S-ketamine administration were found in vitro but could be partially reversed by an agonist of the NLRP3 nigericin. Our current data also suggests that the subanesthetic doses of S-ketamine improved cognitive dysfunction via the inhibition of hippocampal astrocytosis in a mouse model of PSCS.
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Affiliation(s)
- Li-Min Zhang
- Department of Anesthesiology, Hebei Province Cangzhou Hospital of Integrated Traditional and Western Medicine, Cangzhou, China; Hebei Key Laboratory of Integrated Traditional and Western Medicine in Osteoarthrosis Research (Preparing), Hebei Province Cangzhou Hospital of Integrated Traditional and Western Medicine, Cangzhou, China.
| | - Zhi-You Wu
- Graduated School, Hebei Medical University, Shijiazhuang, China.
| | - Ji-Zhen Liu
- Department of Anesthesiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.
| | - Yan Li
- Department of Anesthesiology, Cangzhou Central Hospital, Cangzhou, China.
| | - Jin-Meng Lv
- Hebei Key Laboratory of Integrated Traditional and Western Medicine in Osteoarthrosis Research (Preparing), Hebei Province Cangzhou Hospital of Integrated Traditional and Western Medicine, Cangzhou, China; Anesthesia and Trauma Research Unit, Department of Anesthesiology, Hebei Province Cangzhou Hospital of Integrated Traditional and Western Medicine, Cangzhou, China.
| | - Lu-Ying Wang
- Hebei Key Laboratory of Integrated Traditional and Western Medicine in Osteoarthrosis Research (Preparing), Hebei Province Cangzhou Hospital of Integrated Traditional and Western Medicine, Cangzhou, China; Anesthesia and Trauma Research Unit, Department of Anesthesiology, Hebei Province Cangzhou Hospital of Integrated Traditional and Western Medicine, Cangzhou, China.
| | - Yu-Dong Shan
- Hebei Key Laboratory of Integrated Traditional and Western Medicine in Osteoarthrosis Research (Preparing), Hebei Province Cangzhou Hospital of Integrated Traditional and Western Medicine, Cangzhou, China; Anesthesia and Trauma Research Unit, Department of Anesthesiology, Hebei Province Cangzhou Hospital of Integrated Traditional and Western Medicine, Cangzhou, China.
| | - Rong-Xin Song
- Graduated School, Hebei Medical University, Shijiazhuang, China.
| | - Hui-Tao Miao
- Graduated School, Hebei Medical University, Shijiazhuang, China.
| | - Wei Zhang
- Department of Anesthesiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.
| | - Dong-Xue Zhang
- Department of Gerontology, Cangzhou Central Hospital, Cangzhou, China.
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15
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Dimopoulos TT, Lippi SLP, Davila JF, Barkey RE, Doherty EN, Flinn JM. White Button Mushroom ( Agaricus bisporus) Supplementation Ameliorates Spatial Memory Deficits and Plaque Formation in an Amyloid Precursor Protein Mouse Model of Alzheimer's Disease. Brain Sci 2022; 12:brainsci12101364. [PMID: 36291298 PMCID: PMC9599624 DOI: 10.3390/brainsci12101364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 10/04/2022] [Accepted: 10/05/2022] [Indexed: 11/16/2022] Open
Abstract
Alzheimer’s Disease (AD) is characterized by cognitive impairment and the presence of amyloid-β (Aβ) plaques and tau tangles. This study was conducted to assess the effects of white button mushroom (WBM) supplementation on spatial memory and plaque formation in mice with mutations in amyloid (Aβ). Mice with amyloid precursor protein (hAPP) mutations and their wildtype (WT) littermates were fed a 10% white button mushroom (WBM) feed ad libitum three times per week, in addition to their normal diet. Morris water maze (MWM) was conducted at 14 and 32 weeks of age to assess spatial memory and Aβ plaque pathology in the hippocampus was analyzed. Our results showed that hAPP mice on the WBM diet were faster in reaching the platform in the MWM compared to hAPP mice on the control diet at 32 weeks (p < 0.05). Significantly fewer plaque deposits were found in the hippocampi of hAPP mice on the WBM diet compared to those on the control diet at 32 weeks (p < 0.05). Overall, hAPP mice on the WBM diet had improved spatial memory at 32 weeks of age compared to those on the control diet and exhibited fewer amyloid plaques.
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Affiliation(s)
- Thalia T. Dimopoulos
- Department of Psychology, Cognitive/Behavioral Neuroscience, George Mason University, Fairfax, VA 22030, USA
| | - Stephen L. P. Lippi
- Department of Psychiatry and Behavioral Sciences, University of Texas Health Science Center, San Antonio, TX 78229, USA
| | | | - Rachel E. Barkey
- Department of Psychology, Cognitive/Behavioral Neuroscience, George Mason University, Fairfax, VA 22030, USA
| | - Erin N. Doherty
- Department of Psychology, Cognitive/Behavioral Neuroscience, George Mason University, Fairfax, VA 22030, USA
| | - Jane M. Flinn
- Department of Psychology, Cognitive/Behavioral Neuroscience, George Mason University, Fairfax, VA 22030, USA
- Correspondence:
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16
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A Panax quinquefolius-Based Preparation Prevents the Impact of 5-FU on Activity/Exploration Behaviors and Not on Cognitive Functions Mitigating Gut Microbiota and Inflammation in Mice. Cancers (Basel) 2022; 14:cancers14184403. [PMID: 36139563 PMCID: PMC9496716 DOI: 10.3390/cancers14184403] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 09/05/2022] [Accepted: 09/06/2022] [Indexed: 01/12/2023] Open
Abstract
Simple Summary Chemotherapy-related cognitive impairment (CRCI) and fatigue worsen the quality of life (QoL) of cancer patients. Multicenter studies have shown that Panax quinquefolius and vitamin C, respectively, were effective in reducing the symptoms of fatigue in treated cancer patients. We developed a behavioral C57Bl/6j mouse model to study the impact of 5-Fluorouracil (5-FU) chemotherapy on activity/fatigue, emotional reactivity and cognitive functions. We used this model to evaluate the potentially beneficial role of a Panax quinquefolius-based solution containing vitamin C (Qiseng®) or vitamin C alone in these chemotherapy side effects. We established that Qiseng® prevents the reduction in activity/exploration and symptoms of fatigue induced by 5-FU and dampens chemotherapy-induced intestinal dysbiosis and systemic inflammation. We further showed that Qiseng® decreases macrophage infiltration in the intestinal compartment, thus preventing, at least in part, the systemic elevation of IL-6 and MCP-1 and further reducing the neuroinflammation likely responsible for the fatigue induced by chemotherapy, a major advance toward improving the QoL of patients. Abstract Chemotherapy-related cognitive impairment (CRCI) and fatigue constitute common complaints among cancer patient survivors. Panax quinquefolius has been shown to be effective against fatigue in treated cancer patients. We developed a behavioral C57Bl/6j mouse model to study the role of a Panax quinquefolius-based solution containing vitamin C (Qiseng®) or vitamin C alone in activity/fatigue, emotional reactivity and cognitive functions impacted by 5-Fluorouracil (5-FU) chemotherapy. 5-FU significantly reduces the locomotor/exploration activity potentially associated with fatigue, evokes spatial cognitive impairments and leads to a decreased neurogenesis within the hippocampus (Hp). Qiseng® fully prevents the impact of chemotherapy on activity/fatigue and on neurogenesis, specifically in the ventral Hp. We observed that the chemotherapy treatment induces intestinal damage and inflammation associated with increased levels of Lactobacilli in mouse gut microbiota and increased expression of plasma pro-inflammatory cytokines, notably IL-6 and MCP-1. We demonstrated that Qiseng® prevents the 5-FU-induced increase in Lactobacilli levels and further compensates the 5-FU-induced cytokine release. Concomitantly, in the brains of 5-FU-treated mice, Qiseng® partially attenuates the IL-6 receptor gp130 expression associated with a decreased proliferation of neural stem cells in the Hp. In conclusion, Qiseng® prevents the symptoms of fatigue, reduced chemotherapy-induced neuroinflammation and altered neurogenesis, while regulating the mouse gut microbiota composition, thus protecting against intestinal and systemic inflammation.
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17
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Effect of chronic exposure to sertraline on social and cognitive behavior of adult male and female rats under social isolation stress. LEARNING AND MOTIVATION 2022. [DOI: 10.1016/j.lmot.2022.101807] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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18
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High Fructose and High Fat Diet Impair Different Types of Memory through Oxidative Stress in a Sex- and Hormone-Dependent Manner. Metabolites 2022; 12:metabo12040341. [PMID: 35448528 PMCID: PMC9024673 DOI: 10.3390/metabo12040341] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 04/03/2022] [Accepted: 04/04/2022] [Indexed: 02/05/2023] Open
Abstract
Metabolic syndrome (MetS) contributes to the spread of cardiovascular diseases, diabetes mellitus type 2, and neurodegenerative diseases. Evaluation of sex- and hormone-dependent changes in body weight, blood pressure, blood lipids, oxidative stress markers, and alterations in different types of memory in Sprague–Dawley rats fed with a high fat and high fructose (HFHF) diet were evaluated. After 12 weeks of feeding the male and female rats with HFHF, body weight gain, increase in blood pressure, and generation of dyslipidemia compared to the animals fed with chow diet were observed. Regarding memory, it was noted that gonadectomy reverted the effects of HFHF in the 24 h novel object recognition task and in spatial learning/memory analyzed through Morris water maze, males being more affected than females. Nevertheless, gonadectomy did not revert long-term memory impairment in the passive avoidance task induced by HFHF nor in male or female rats. On the other hand, sex-hormone–diet interaction was observed in the plasma concentration of malondialdehyde and nitric oxide. These results suggest that the changes observed in the memory and learning of MetS animals are sex- and hormone-dependent and correlate to an increase in oxidative stress.
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19
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Curdt N, Schmitt FW, Bouter C, Iseni T, Weile HC, Altunok B, Beindorff N, Bayer TA, Cooke MB, Bouter Y. Search strategy analysis of Tg4-42 Alzheimer Mice in the Morris Water Maze reveals early spatial navigation deficits. Sci Rep 2022; 12:5451. [PMID: 35361814 PMCID: PMC8971530 DOI: 10.1038/s41598-022-09270-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 03/18/2022] [Indexed: 12/20/2022] Open
Abstract
Spatial disorientation is one of the earliest symptoms in Alzheimer’s disease and allocentric deficits can already be detected in the asymptomatic preclinical stages of the disease. The Morris Water Maze (MWM) is used to study spatial learning in rodent models. Here we investigated the spatial memory of female 3, 7 and 12 month-old Alzheimer Tg4-42 mice in comparison to wild-type control animals. Conventional behavior analysis of escape latencies and quadrant preference revealed spatial memory and reference memory deficits in female 7 and 12 month-old Tg4-42 mice. In contrast, conventional analysis of the MWM indicated an intact spatial memory in 3 month-old Tg4-42 mice. However, a detailed analysis of the swimming strategies demonstrated allocentric-specific memory deficits in 3 month-old Tg4-42 mice before the onset of severe memory deficits. Furthermore, we could show that the spatial reference memory deficits in aged Tg4-42 animals are caused by the lack of allocentric and spatial strategies. Analyzing search strategies in the MWM allows to differentiate between hippocampus-dependent allocentric and hippocampus-independent egocentric search strategies. The spatial navigation impairments in young Tg4-42 mice are well in line with the hypometabolism and synaptic deficits in the hippocampus. Therefore, analyzing search strategies in the Tg4-42 model can be a powerful tool for preclinical drug testing and identifying early therapeutic successes.
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Affiliation(s)
- Nadine Curdt
- Department of Psychiatry and Psychotherapy, Division of Molecular Psychiatry, Georg-August-University Göttingen, University Medicine Göttingen, 37075, Göttingen, Germany
| | - Franziska W Schmitt
- Department of Psychiatry and Psychotherapy, Division of Molecular Psychiatry, Georg-August-University Göttingen, University Medicine Göttingen, 37075, Göttingen, Germany
| | - Caroline Bouter
- Department of Nuclear Medicine, University Medical Center Göttingen (UMG), Georg-August-University, Göttingen, Germany
| | - Trendelina Iseni
- Department of Psychiatry and Psychotherapy, Division of Molecular Psychiatry, Georg-August-University Göttingen, University Medicine Göttingen, 37075, Göttingen, Germany
| | - Hanna C Weile
- Department of Psychiatry and Psychotherapy, Division of Molecular Psychiatry, Georg-August-University Göttingen, University Medicine Göttingen, 37075, Göttingen, Germany
| | - Berfin Altunok
- Department of Psychiatry and Psychotherapy, Division of Molecular Psychiatry, Georg-August-University Göttingen, University Medicine Göttingen, 37075, Göttingen, Germany
| | - Nicola Beindorff
- Berlin Experimental Radionuclide Imaging Center (BERIC), Charité-University Medicine Berlin, Berlin, Germany
| | - Thomas A Bayer
- Department of Psychiatry and Psychotherapy, Division of Molecular Psychiatry, Georg-August-University Göttingen, University Medicine Göttingen, 37075, Göttingen, Germany
| | - Matthew B Cooke
- Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver, BC, V6T 1Z3, Canada.,Department of Psychology, University of British Columbia, Vancouver, BC, V6T 1Z4, Canada
| | - Yvonne Bouter
- Department of Psychiatry and Psychotherapy, Division of Molecular Psychiatry, Georg-August-University Göttingen, University Medicine Göttingen, 37075, Göttingen, Germany.
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20
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OTHMAN MZ, HASSAN Z, CHE HAS AT. Morris water maze: a versatile and pertinent tool for assessing spatial learning and memory. Exp Anim 2022; 71:264-280. [PMID: 35314563 PMCID: PMC9388345 DOI: 10.1538/expanim.21-0120] [Citation(s) in RCA: 87] [Impact Index Per Article: 43.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Since its development about 40 years ago (1981–2021), Morris water maze has turned into a very popular tool for assessing spatial learning and memory. Its many advantages have ensured its
pertinence to date. These include its effectiveness in evaluating hippocampal-dependent learning and memory, exemption from motivational differences across diverse experimental
manipulations, reliability in various cross-species studies, and adaptability to many experimental conditions with various test protocols. Nonetheless, throughout its establishment, several
experimental and analysis loopholes have galvanized researchers to assess ways in which it could be improved and adapted to fill this gap. Therefore, in this review, we briefly summarize
these developments since the early years of its establishment through to the most recent advancements in computerized analysis, offering more comprehensive analysis paradigms. In addition,
we discuss the adaptability of the Morris water maze across different test versions and analysis paradigms, providing suggestions with regard to the best paradigms for particular
experimental conditions. Hence, the proper selection of the experimental protocols, analysis paradigms, and consideration of the assay’s limitations should be carefully considered. Given
that appropriate measures are taken, with various adaptations made, the Morris water maze will likely remain a relevant tool to assess the mechanisms of spatial learning and memory.
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21
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A robust bitmap-based real-time position tracking algorithm for rats in radial arm maze tests. Sci Rep 2021; 11:22447. [PMID: 34789865 PMCID: PMC8599520 DOI: 10.1038/s41598-021-01974-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Accepted: 11/01/2021] [Indexed: 11/08/2022] Open
Abstract
This paper aims to develop a position tracking algorithm by which a rat in a radial arm maze can be accurately located in real time. An infrared (IR) night-vision camera was hung above the maze to capture IR images of the rat. The IR images were binarized and then duplicated for subsequent intersection and opening operations. Due to simple operations and a high robustness against the noise spots formed by the droppings of the rat, it took just minutes to process more than 9000 frames, and an accuracy above 99% was reached as well. The maze was intruded by an experimenter to further test the robustness, and the accuracy slightly fell to 98%. For comparison purposes, the same experiments were carried out using a pre-trained YOLO v2 model. The YOLO counterpart gave an accuracy beyond 97% in the absence and in the presence of the intruder. In other words, this work slightly outperformed the YOLO counterpart in terms of the accuracy in both cases, which indicates the robustness of this work. However, it took the YOLO counterpart an hour or so to locate a rat contained in the frames, which highlights the contribution of this work.
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Boehme M, Guzzetta KE, Bastiaanssen TFS, van de Wouw M, Moloney GM, Gual-Grau A, Spichak S, Olavarría-Ramírez L, Fitzgerald P, Morillas E, Ritz NL, Jaggar M, Cowan CSM, Crispie F, Donoso F, Halitzki E, Neto MC, Sichetti M, Golubeva AV, Fitzgerald RS, Claesson MJ, Cotter PD, O'Leary OF, Dinan TG, Cryan JF. Microbiota from young mice counteracts selective age-associated behavioral deficits. NATURE AGING 2021; 1:666-676. [PMID: 37117767 DOI: 10.1038/s43587-021-00093-9] [Citation(s) in RCA: 120] [Impact Index Per Article: 40.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Accepted: 06/25/2021] [Indexed: 04/30/2023]
Abstract
The gut microbiota is increasingly recognized as an important regulator of host immunity and brain health. The aging process yields dramatic alterations in the microbiota, which is linked to poorer health and frailty in elderly populations. However, there is limited evidence for a mechanistic role of the gut microbiota in brain health and neuroimmunity during aging processes. Therefore, we conducted fecal microbiota transplantation from either young (3-4 months) or old (19-20 months) donor mice into aged recipient mice (19-20 months). Transplant of a microbiota from young donors reversed aging-associated differences in peripheral and brain immunity, as well as the hippocampal metabolome and transcriptome of aging recipient mice. Finally, the young donor-derived microbiota attenuated selective age-associated impairments in cognitive behavior when transplanted into an aged host. Our results reveal that the microbiome may be a suitable therapeutic target to promote healthy aging.
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Affiliation(s)
- Marcus Boehme
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland
| | - Katherine E Guzzetta
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland
| | - Thomaz F S Bastiaanssen
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland
| | | | - Gerard M Moloney
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland
| | | | - Simon Spichak
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland
| | | | | | | | - Nathaniel L Ritz
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland
| | - Minal Jaggar
- APC Microbiome Ireland, University College Cork, Cork, Ireland
| | | | - Fiona Crispie
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- Teagasc Food Research Centre, Moorepark, Fermoy, Cork, Ireland
| | - Francisco Donoso
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- Department of Psychiatry and Neurobehavioural Science, University College Cork, Cork, Ireland
| | - Evelyn Halitzki
- APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Marta C Neto
- APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Marzia Sichetti
- APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Anna V Golubeva
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland
| | - Rachel S Fitzgerald
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- School of Microbiology, University College Cork, Cork, Ireland
| | - Marcus J Claesson
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- School of Microbiology, University College Cork, Cork, Ireland
| | - Paul D Cotter
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- Teagasc Food Research Centre, Moorepark, Fermoy, Cork, Ireland
| | - Olivia F O'Leary
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland
| | - Timothy G Dinan
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- Department of Psychiatry and Neurobehavioural Science, University College Cork, Cork, Ireland
| | - John F Cryan
- APC Microbiome Ireland, University College Cork, Cork, Ireland.
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland.
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Omeiza NA, Abdulrahim HA, Alagbonsi AI, Ezurike PU, Soluoku TK, Isiabor H, Alli-Oluwafuyi AA. Melatonin salvages lead-induced neuro-cognitive shutdown, anxiety, and depressive-like symptoms via oxido-inflammatory and cholinergic mechanisms. Brain Behav 2021; 11:e2227. [PMID: 34087957 PMCID: PMC8413791 DOI: 10.1002/brb3.2227] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 04/17/2021] [Accepted: 05/19/2021] [Indexed: 12/11/2022] Open
Abstract
INTRODUCTION Lead is the most used nonphysiological neurotoxic heavy metal in the world that has been indicated to interfere with the cognitive and noncognitive processes via numerous mechanisms. The neuroprotective effect of melatonin is well known, but the effect of its interaction with lead in the brain remains inconclusive. OBJECTIVE To assess the therapeutic role of melatonin on cognitive deficit, anxiety and depressive-like symptoms in matured male Wistar rats exposed to a subchronic lead chloride (PbCl2 ). METHODS Twenty male Wistar rats were blindly randomized into four groups (n = 5/group): group 1 to 4 underwent intragastric administration of physiological saline (10 ml/kg; vehicle), PbCl2 (50 mg/kg), melatonin (10 mg/kg) and PbCl2 + melatonin respectively for a period of 4 weeks during which neurobehavioral data were extracted, followed by neurochemical and histopathological evaluations. RESULTS Exposure to PbCl2 reduced cognitive performance by increasing the escape latency and average proximity to the platform zone border, decreasing average path length in the platform zone, cognitive score, and time spent in probing. It raised the thigmotaxis percentage, time spent in rearing, number of pellet-like feces, and time spent in the dark compartment of a bright/dark box which are predictors of anxiety. It also induced depressive-like behavior as immobility time was enhanced. PbCl2 deranged neurochemicals; malondialdehyde, interlukin-1β, and tumor necrotic factor-α were increased while superoxide dismutase and acetylcholinesterase were decreased without remarkable alteration in reduced glutathione and nitric oxide. Administration of PbCl2 further disrupted neuronal settings of hippocampal proper and dentate gyrus. In contrast, the supplementation of melatonin reversed all the neurological consequences of PbCl2 neurotoxicity by eliciting its properties against oxidative and nonoxidative action of PbCl2 . CONCLUSION These findings suggest that melatonin down-regulates neurotoxicant interplays in the brain systems. Therefore, this study suggests the use of melatonin as an adjuvant therapy in neuropathological disorders/dysfunctions.
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Affiliation(s)
- Noah A Omeiza
- Neuropharmacology and Toxicology Unit, Department of Pharmacology and Therapeutics, College of Medicine, University of Ibadan, Ibadan, Oyo State, Nigeria
| | - Halimat A Abdulrahim
- Department of Medical Biochemistry, College of Health Sciences, University of Ilorin, Ilorin, Kwara State, Nigeria
| | - Abdullateef I Alagbonsi
- Department of Clinical Biology (Physiology), School of Medicine and Pharmacy, College of Medicine and Health Sciences, University of Rwanda, Huye, Southern Province, Republic of Rwanda
| | - Precious U Ezurike
- Neuropharmacology and Toxicology Unit, Department of Pharmacology and Therapeutics, College of Medicine, University of Ibadan, Ibadan, Oyo State, Nigeria
| | - Talha K Soluoku
- Department of Neuroscience, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Happy Isiabor
- Neuropharmacology and Toxicology Unit, Department of Pharmacology and Therapeutics, College of Medicine, University of Ibadan, Ibadan, Oyo State, Nigeria
| | - Abdulmusawwir A Alli-Oluwafuyi
- Department of Pharmacology and Therapeutics, College of Health Sciences, University of Ilorin, Ilorin, Kwara State, Nigeria
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Nicola C, Dubois M, Campart C, Al Sagheer T, Desrues L, Schapman D, Galas L, Lange M, Joly F, Castel H. The Prostate Cancer Therapy Enzalutamide Compared with Abiraterone Acetate/Prednisone Impacts Motivation for Exploration, Spatial Learning and Alters Dopaminergic Transmission in Aged Castrated Mice. Cancers (Basel) 2021; 13:cancers13143518. [PMID: 34298734 PMCID: PMC8304001 DOI: 10.3390/cancers13143518] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 07/06/2021] [Accepted: 07/08/2021] [Indexed: 01/08/2023] Open
Abstract
Simple Summary Cognitive side effects and fatigue after cancer treatment now constitute a major challenge in oncology. Abiraterone acetate plus prednisone (AAP) and enzalutamide (ENZ) are next-generation therapies improving metastatic castration-resistant prostate cancer (mCRPC) patient survival, but also associated with neurological disturbances. We developed a behavioral 17 months-aged and castrated mouse model receiving AAP or ENZ for 5 days per week for six weeks. We establish that ENZ impacts locomotor and explorative behaviors, and strength capacity likely by preventing binding of central synthetized androgens to androgen receptors expressed by dopamine neurons of the Substantia Nigra and the Ventral Tegmentum. ENZ also reduces the cognitive score, associated with less neuronal activity in dorsal hippocampal areas. This demonstrates ENZ-specific consequences on motivation to exploration and cognition, being of particular importance for future management of elderly prostate cancer patients and their quality of life. Abstract Cognitive side effects after cancer treatment threatening quality of life (QoL) constitute a major challenge in oncology. Abiraterone acetate plus prednisone (AAP) and enzalutamide (ENZ) are examples of next-generation therapy (NGT) administered to metastatic castration-resistant prostate cancer (mCRPC) patients. NGT significantly improved mCRPC overall survival but neurological side effects such as fatigue and cognitive impairment were reported. We developed a behavioral 17 months-aged and castrated mouse model receiving per os AAP or ENZ for 5 days per week for six consecutive weeks. ENZ exposure reduced spontaneous activity and exploratory behavior associated with a decreased tyrosine hydroxylase (TH)-dopaminergic activity in the substantia nigra pars compacta and the ventral tegmental area. A decrease in TH+-DA afferent fibers and Phospho-DARPP32-related dopaminergic neuronal activities in the striatum and the ventral hippocampus highlighted ENZ-induced dopaminergic regulation within the nigrostriatal and mesolimbocortical pathways. ENZ and AAP treatments did not substantially modify spatial learning and memory performances, but ENZ led to a thygmotaxis behavior impacting the cognitive score, and reduced c-fos-related activity of NeuN+-neurons in the dorsal hippocampus. The consequences of the mCRPC treatment ENZ on aged castrated mouse motivation to exploration and cognition should make reconsider management strategy of elderly prostate cancer patients.
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Affiliation(s)
- Celeste Nicola
- Normandie University, UNIROUEN, INSERM, U1239 DC2N, 76000 Rouen, France; (C.N.); (M.D.); (C.C.); (T.A.S.); (L.D.)
- Institute for Research and Innovation in Biomedicine (IRIB), 76000 Rouen, France; (D.S.); (L.G.)
- Cancer and Cognition Platform, Ligue Nationale contre le Cancer, 14000 Caen, France; (M.L.); (F.J.)
| | - Martine Dubois
- Normandie University, UNIROUEN, INSERM, U1239 DC2N, 76000 Rouen, France; (C.N.); (M.D.); (C.C.); (T.A.S.); (L.D.)
- Institute for Research and Innovation in Biomedicine (IRIB), 76000 Rouen, France; (D.S.); (L.G.)
- Cancer and Cognition Platform, Ligue Nationale contre le Cancer, 14000 Caen, France; (M.L.); (F.J.)
| | - Cynthia Campart
- Normandie University, UNIROUEN, INSERM, U1239 DC2N, 76000 Rouen, France; (C.N.); (M.D.); (C.C.); (T.A.S.); (L.D.)
- Institute for Research and Innovation in Biomedicine (IRIB), 76000 Rouen, France; (D.S.); (L.G.)
- Cancer and Cognition Platform, Ligue Nationale contre le Cancer, 14000 Caen, France; (M.L.); (F.J.)
| | - Tareq Al Sagheer
- Normandie University, UNIROUEN, INSERM, U1239 DC2N, 76000 Rouen, France; (C.N.); (M.D.); (C.C.); (T.A.S.); (L.D.)
- Institute for Research and Innovation in Biomedicine (IRIB), 76000 Rouen, France; (D.S.); (L.G.)
| | - Laurence Desrues
- Normandie University, UNIROUEN, INSERM, U1239 DC2N, 76000 Rouen, France; (C.N.); (M.D.); (C.C.); (T.A.S.); (L.D.)
- Institute for Research and Innovation in Biomedicine (IRIB), 76000 Rouen, France; (D.S.); (L.G.)
- Cancer and Cognition Platform, Ligue Nationale contre le Cancer, 14000 Caen, France; (M.L.); (F.J.)
| | - Damien Schapman
- Institute for Research and Innovation in Biomedicine (IRIB), 76000 Rouen, France; (D.S.); (L.G.)
- Normandie University, UNIROUEN, INSERM, PRIMACEN, 76000 Rouen, France
| | - Ludovic Galas
- Institute for Research and Innovation in Biomedicine (IRIB), 76000 Rouen, France; (D.S.); (L.G.)
- Normandie University, UNIROUEN, INSERM, PRIMACEN, 76000 Rouen, France
| | - Marie Lange
- Cancer and Cognition Platform, Ligue Nationale contre le Cancer, 14000 Caen, France; (M.L.); (F.J.)
- Centre François Baclesse, Clinical Research Department, 14000 Caen, France
- Normandie University, UNICAEN, INSERM, U1086 ANTICIPE, 14000 Caen, France
| | - Florence Joly
- Cancer and Cognition Platform, Ligue Nationale contre le Cancer, 14000 Caen, France; (M.L.); (F.J.)
- Centre François Baclesse, Clinical Research Department, 14000 Caen, France
- Normandie University, UNICAEN, INSERM, U1086 ANTICIPE, 14000 Caen, France
- University Hospital of Caen, 14000 Caen, France
| | - Hélène Castel
- Normandie University, UNIROUEN, INSERM, U1239 DC2N, 76000 Rouen, France; (C.N.); (M.D.); (C.C.); (T.A.S.); (L.D.)
- Institute for Research and Innovation in Biomedicine (IRIB), 76000 Rouen, France; (D.S.); (L.G.)
- Cancer and Cognition Platform, Ligue Nationale contre le Cancer, 14000 Caen, France; (M.L.); (F.J.)
- Normandie University, UNIROUEN, INSERM, DC2N, Team Astrocyte and Vascular Niche, Place Emile Blondel, CEDEX, 76821 Mont-Saint-Aignan, France
- Correspondence: ; Tel.: +33-2-35-14-66-23
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Demirgan S, Akyol O, Temel Z, Şengelen A, Pekmez M, Ulaş O, Sevdi MS, Erkalp K, Selcan A. Intranasal levosimendan prevents cognitive dysfunction and apoptotic response induced by repeated isoflurane exposure in newborn rats. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2021; 394:1553-1567. [PMID: 33772342 DOI: 10.1007/s00210-021-02077-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Accepted: 03/03/2021] [Indexed: 12/25/2022]
Abstract
Anesthetic-induced toxicity in early life may lead to risk of cognitive decline at later ages. Notably, multiple exposures to isoflurane (ISO) cause acute apoptotic cell death in the developing brain and long-term cognitive dysfunction. This study is the first to investigate whether levosimendan (LVS), known for its protective myocardial properties, can prevent anesthesia-induced apoptotic response in brain cells and learning and memory impairment. Postnatal day (P)7 Wistar albino pups were randomly assigned to groups consisting of an equal number of males and females in this laboratory investigation. We treated rats with LVS (0.8 mg/kg/day) intranasally 30 min before each ISO exposure (1.5%, 3 h) at P7+9+11. We selected DMSO as the drug vehicle. Also, the control group at P7+9+11 received 50% O2 for 3 h instead of ISO. Neuroprotective activity of LVS against ISO-induced cognitive dysfunction was evaluated by Morris water maze. Expression of apoptotic-related proteins was detected in the whole brain using western blot. LVS pretreatment significantly prevented anesthesia-induced deficit in spatial learning (at P28-32) and memory (at P33, P60, and P90). No sex-dependent difference occurred on any day of the training and probe trial. Intranasal LVS was also found to significantly prevent the ISO-induced apoptosis by reducing Bax and cleaved caspase-3, and by increasing Bcl-2 and Bcl-xL. Our findings support pretreatment with intranasal LVS application as a simple strategy in daily clinical practice in pediatric anesthesia to protect infants and children from the risk of general anesthesia-induced cell death and cognitive declines.
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Affiliation(s)
- Serdar Demirgan
- T.C. Health Ministry, Anesthesiology and Reanimation Clinic, University of Health Sciences, Bağcılar Training and Research Hospital, Istanbul, Turkey
- Department of Molecular Biology and Genetics, Institute of Graduate Studies in Sciences, Istanbul University, 34134, Vezneciler-Fatih/Istanbul, Turkey
| | - Onat Akyol
- T.C. Health Ministry, Anesthesiology and Reanimation Clinic, University of Health Sciences, Bağcılar Training and Research Hospital, Istanbul, Turkey
| | - Zeynep Temel
- Department of Neuroscience Institute of Health Sciences, Istanbul Medipol University, Istanbul, Turkey
| | - Aslıhan Şengelen
- Department of Molecular Biology and Genetics, Institute of Graduate Studies in Sciences, Istanbul University, 34134, Vezneciler-Fatih/Istanbul, Turkey.
| | - Murat Pekmez
- Department of Molecular Biology and Genetics, Faculty of Science, Istanbul University, Istanbul, Turkey
| | - Ozancan Ulaş
- Department of Molecular Biology and Genetics, Institute of Graduate Studies in Sciences, Istanbul University, 34134, Vezneciler-Fatih/Istanbul, Turkey
| | - Mehmet Salih Sevdi
- T.C. Health Ministry, Anesthesiology and Reanimation Clinic, University of Health Sciences, Bağcılar Training and Research Hospital, Istanbul, Turkey
| | - Kerem Erkalp
- T.C. Health Ministry, Anesthesiology and Reanimation Clinic, University of Health Sciences, Bağcılar Training and Research Hospital, Istanbul, Turkey
| | - Ayşin Selcan
- T.C. Health Ministry, Anesthesiology and Reanimation Clinic, University of Health Sciences, Bağcılar Training and Research Hospital, Istanbul, Turkey
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Phasuk S, Jasmin S, Pairojana T, Chang HK, Liang KC, Liu IY. Lack of the peroxiredoxin 6 gene causes impaired spatial memory and abnormal synaptic plasticity. Mol Brain 2021; 14:72. [PMID: 33874992 PMCID: PMC8056661 DOI: 10.1186/s13041-021-00779-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Accepted: 04/06/2021] [Indexed: 02/07/2023] Open
Abstract
Peroxiredoxin 6 (PRDX6) is expressed dominantly in the astrocytes and exerts either neuroprotective or neurotoxic effects in the brain. Although PRDX6 can modulate several signaling cascades involving cognitive functions, its physiological role in spatial memory has not been investigated yet. This study aims to explore the function of the Prdx6 gene in spatial memory formation and synaptic plasticity. We first tested Prdx6-/- mice on a Morris water maze task and found that their memory performance was defective, along with reduced long-term potentiation (LTP) in CA3-CA1 hippocampal synapses recorded from hippocampal sections of home-caged mice. Surprisingly, after the probe test, these knockout mice exhibited elevated hippocampal LTP, higher phosphorylated ERK1/2 level, and decreased reactive astrocyte markers. We further reduced ERK1/2 phosphorylation by administering MEK inhibitor, U0126, into Prdx6-/- mice before the probe test, which reversed their spatial memory deficit. This study is the first one to report the role of PRDX6 in spatial memory and synaptic plasticity. Our results revealed that PRDX6 is necessary for maintaining spatial memory by modulating ERK1/2 phosphorylation and astrocyte activation.
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Affiliation(s)
- Sarayut Phasuk
- Institute of Medical Sciences, Tzu Chi University, Hualien, Taiwan
- Department of Physiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Sureka Jasmin
- Department of Molecular Biology and Human Genetics, Tzu Chi University, Hualien, Taiwan
| | - Tanita Pairojana
- Institute of Medical Sciences, Tzu Chi University, Hualien, Taiwan
| | - Hsueh-Kai Chang
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Kai-Chi Liang
- Institute of Medical Sciences, Tzu Chi University, Hualien, Taiwan
| | - Ingrid Y Liu
- Institute of Medical Sciences, Tzu Chi University, Hualien, Taiwan.
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27
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Merola C, Lucon-Xiccato T, Bertolucci C, Perugini M. Behavioural effects of early-life exposure to parabens in zebrafish larvae. J Appl Toxicol 2021; 41:1852-1862. [PMID: 33826164 DOI: 10.1002/jat.4171] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Revised: 03/16/2021] [Accepted: 03/17/2021] [Indexed: 12/12/2022]
Abstract
Parabens are classified as endocrine disrupting chemicals due to their ability to activate several nuclear receptors causing changes in hormones-dependent signalling pathways. Central nervous system of developing organisms is particularly vulnerable to changes in hormonal pathways, which could lead to altered brain function, abnormal behaviour and even diseases later in life. The aim of the present study was to investigate the effects of exposure to butylparaben (BuP), ethylparaben (EtP) and methylparaben (MeP) during early development on nervous system using zebrafish larvae's behavioural models. Zebrafish were exposed until 4 days post fertilization (dpf) to three concentrations of each paraben chosen considering the environmentally realistic concentrations of human exposure and the benchmark-dose lower bound calculated for zebrafish larvae (BuP: 5, 50 and 500 μg/L; EtP: 50, 500 and 5000 μg/L; MeP: 100, 1000 and 10,000 μg/L). Activity in novel and in familiar environment, thigmotaxis, visual startle response and photic synchronization of the behavioural circadian rhythms were analysed at 4, 5 and 6 dpf. Zebrafish larvae exposed to BuP 500 μg/L and EtP 5000 μg/L revealed increased anxiety-like behaviour in novel environment. Larvae treated with 500 μg/L of BuP showed reduced activity in familiar and marginally in unfamiliar environment, and larvae exposed to 5000 μg/L of EtP exhibited hyperactivity in familiar environment. Parabens exposure did not influence the visual startle response and the photic synchronization of circadian rhythms in zebrafish larvae. This research highlighted as the exposure to parabens has the potential to interfere with behavioural development of zebrafish.
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Affiliation(s)
- Carmine Merola
- Faculty of Bioscience and Agro-Food and Environmental Technology, University of Teramo, Teramo, Italy
| | - Tyrone Lucon-Xiccato
- Department of Life Sciences and Biotechnology, University of Ferrara, Ferrara, Italy
| | - Cristiano Bertolucci
- Department of Life Sciences and Biotechnology, University of Ferrara, Ferrara, Italy
| | - Monia Perugini
- Faculty of Bioscience and Agro-Food and Environmental Technology, University of Teramo, Teramo, Italy
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Rajendran K, Chellappan DR, Sankaranarayanan S, Ramakrishnan V, Krishnan UM. Investigations on a polyherbal formulation for treatment of cognitive impairment in a cholinergic dysfunctional rodent model. Neurochem Int 2020; 141:104890. [DOI: 10.1016/j.neuint.2020.104890] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Revised: 10/21/2020] [Accepted: 10/22/2020] [Indexed: 02/07/2023]
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29
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Durán-Carabali LE, Odorcyk FK, Greggio S, Venturin GT, Sanches EF, Schu GG, Carvalho AS, Pedroso TA, de Sá Couto-Pereira N, Da Costa JC, Dalmaz C, Zimmer ER, Netto CA. Pre- and early postnatal enriched environmental experiences prevent neonatal hypoxia-ischemia late neurodegeneration via metabolic and neuroplastic mechanisms. J Neurochem 2020; 157:1911-1929. [PMID: 33098090 DOI: 10.1111/jnc.15221] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 10/04/2020] [Accepted: 10/19/2020] [Indexed: 12/17/2022]
Abstract
Prenatal and early postnatal periods are important for brain development and neural function. Neonatal insults such as hypoxia-ischemia (HI) causes prolonged neural and metabolic dysregulation, affecting central nervous system maturation. There is evidence that brain hypometabolism could increase the risk of adult-onset neurodegenerative diseases. However, the impact of non-pharmacologic strategies to attenuate HI-induced brain glucose dysfunction is still underexplored. This study investigated the long-term effects of early environmental enrichment in metabolic, cell, and functional responses after neonatal HI. Thereby, male Wistar rats were divided according to surgical procedure, sham, and HI (performed at postnatal day 3), and the allocation to standard (SC) or enriched condition (EC) during gestation and lactation periods. In-vivo cerebral metabolism was assessed by means of [18 F]-FDG micro-positron emission tomography, and cognitive, biochemical, and histological analyses were performed in adulthood. Our findings reveal that HI causes a reduction in glucose metabolism and glucose transporter levels as well as hyposynchronicity in metabolic brain networks. However, EC during prenatal or early postnatal period attenuated these metabolic disturbances. A positive correlation was observed between [18 F]-FDG values and volume ratios in adulthood, indicating that preserved tissue by EC is metabolically active. EC promotes better cognitive scores, as well as down-regulation of amyloid precursor protein in the parietal cortex and hippocampus of HI animals. Furthermore, growth-associated protein 43 was up-regulated in the cortex of EC animals. Altogether, results presented support that EC during gestation and lactation period can reduce HI-induced impairments that may contribute to functional decline and progressive late neurodegeneration.
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Affiliation(s)
- Luz Elena Durán-Carabali
- Graduate Program in Biological Sciences: Physiology, Instituto de Ciências Básicas da Saúde (ICBS), Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Felipe Kawa Odorcyk
- Graduate Program in Biological Sciences: Physiology, Instituto de Ciências Básicas da Saúde (ICBS), Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Samuel Greggio
- Preclinical Research Center, Brain Institute (BraIns) of Rio Grande do Sul, Porto Alegre, Brazil
| | | | - Eduardo Farias Sanches
- Graduate Program in Biological Sciences: Biochemistry, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Guilherme Garcia Schu
- Graduate Program in Biological Sciences: Biochemistry, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Andrey Soares Carvalho
- Graduate Program in Biological Sciences: Neuroscience, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Thales Avila Pedroso
- Department of Biochemistry, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Natividade de Sá Couto-Pereira
- Graduate Program in Biological Sciences: Neuroscience, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Jaderson Costa Da Costa
- Preclinical Research Center, Brain Institute (BraIns) of Rio Grande do Sul, Porto Alegre, Brazil
| | - Carla Dalmaz
- Graduate Program in Biological Sciences: Biochemistry, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Graduate Program in Biological Sciences: Neuroscience, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Department of Biochemistry, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Eduardo Rigon Zimmer
- Graduate Program in Biological Sciences: Pharmacology and Therapeutics, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Department of Pharmacology, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Carlos Alexandre Netto
- Graduate Program in Biological Sciences: Physiology, Instituto de Ciências Básicas da Saúde (ICBS), Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Graduate Program in Biological Sciences: Biochemistry, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Department of Biochemistry, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
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30
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Li Y, Jiao H, Ren W, Ren F. TRESK alleviates trigeminal neuralgia induced by infraorbital nerve chronic constriction injury in rats. Mol Pain 2020; 15:1744806919882511. [PMID: 31558093 PMCID: PMC6822185 DOI: 10.1177/1744806919882511] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
Trigeminal neuralgia commonly results in pain behaviors and cognitive impairment. Convincing evidence suggests that TWIK-related spinal cord K+ (TRESK) exerts antinociceptive and neuroprotective effects. However, its possible potentials in trigeminal neuralgia remain unclear. Trigeminal neuralgia model was established in rats by generating an infraorbital nerve chronic constriction injury, and rats received intrathecal injections of TRESK-overexpressing lentivirus and siRNA expression vector-targeted against TRESK (si-TRESK) into the trigeminal ganglions. Mechanical allodynia was evaluated by mechanical withdrawal threshold. Cognitive capacity was tested using Morris water maze. The TRESK expression was determined by quantitative real-time polymerase chain reaction and Western blotting. Results showed that the mRNA and protein levels of TRESK were significantly downregulated in trigeminal ganglions in injured rats. Intrathecal treatment with TRESK reduced mechanical allodynia and relieved learning and memory deficits in trigeminal neuralgia rats, while si-TRESK injection caused neuropathic pain and cognitive deficits. In summary, the present study concluded that TRESK ameliorated pain-associated behaviors and cognitive deficits, which was useful as an alternative approach in management of trigeminal neuralgia.
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Affiliation(s)
- Yuanyuan Li
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha, P.R. China
| | - Hena Jiao
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha, P.R. China
| | - Wenan Ren
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha, P.R. China
| | - Fei Ren
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha, P.R. China
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31
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White D, de Sousa Abreu RP, Blake A, Murphy J, Showell S, Kitamoto T, Lawal HO. Deficits in the vesicular acetylcholine transporter alter lifespan and behavior in adult Drosophila melanogaster. Neurochem Int 2020; 137:104744. [PMID: 32315665 DOI: 10.1016/j.neuint.2020.104744] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Revised: 04/06/2020] [Accepted: 04/09/2020] [Indexed: 10/24/2022]
Abstract
The neurotransmitter acetylcholine (ACh) is involved in critical organismal functions that include locomotion and cognition. Importantly, alterations in the cholinergic system are a key underlying factor in cognitive defects associated with aging. One essential component of cholinergic synaptic transmission is the vesicular ACh transporter (VAChT), which regulates the packaging of ACh into synaptic vesicles for extracellular release. Mutations that cause a reduction in either protein level or activity lead to diminished locomotion ability whereas complete loss of function of VAChT is lethal. While much is known about the function of VAChT, the direct role of altered ACh release and its association with either an impairment or an enhancement of cognitive function are still not fully understood. We hypothesize that point mutations in Vacht cause age-related deficits in cholinergic-mediated behaviors such as locomotion, and learning and memory. Using Drosophila melanogaster as a model system, we have studied several mutations within Vacht and observed their effect on survivability and locomotive behavior. Here we report for the first time a weak hypomorphic Vacht allele that shows a differential effect on ACh-linked behaviors. We also demonstrate that partially rescued Vacht point mutations cause an allele-dependent deficit in lifespan and defects in locomotion ability. Moreover, using a thorough data analytics strategy to identify exploratory behavioral patterns, we introduce new paradigms for measuring locomotion-related activities that could not be revealed or detected by a simple measure of the average speed alone. Together, our data indicate a role for VAChT in the maintenance of longevity and locomotion abilities in Drosophila and we provide additional measurements of locomotion that can be useful in determining subtle changes in Vacht function on locomotion-related behaviors.
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Affiliation(s)
- Daniel White
- Neuroscience Program, Department of Biological Sciences, Delaware State University, Dover, DE, 19901, USA
| | - Raquel P de Sousa Abreu
- Department of Neurobiology, David Geffen School of Medicine at UCLA, Los Angeles, CA, 90095, USA
| | - Andrew Blake
- Neuroscience Program, Department of Biological Sciences, Delaware State University, Dover, DE, 19901, USA
| | - Jeremy Murphy
- Neuroscience Program, Department of Biological Sciences, Delaware State University, Dover, DE, 19901, USA
| | - Shardae Showell
- Neuroscience Program, Department of Biological Sciences, Delaware State University, Dover, DE, 19901, USA
| | - Toshihiro Kitamoto
- Department of Anesthesia, Carver College of Medicine, University of Iowa, Iowa City, IA, 52242, USA
| | - Hakeem O Lawal
- Neuroscience Program, Department of Biological Sciences, Delaware State University, Dover, DE, 19901, USA.
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32
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Mazarati A. Can we and should we use animal models to study neurobehavioral comorbidities of epilepsy? Epilepsy Behav 2019; 101:106566. [PMID: 31699663 DOI: 10.1016/j.yebeh.2019.106566] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 09/11/2019] [Accepted: 09/12/2019] [Indexed: 11/20/2022]
Abstract
Animal systems have been widely used to examine mechanisms of neurobehavioral comorbidities of epilepsy and to help in developing their effective therapies. Despite the progress made in the field, animal studies have their limitations stemming both from issues with modeling neuropsychiatric disorders in the laboratory and from drawbacks of animal models of epilepsy themselves. This review discusses advantages and weaknesses of experimental paradigms and approaches used to model and to analyze neurobehavioral comorbidities of epilepsy, from the perspectives of their needs, interpretation, ways of improvement, and clinical relevance. Developmental studies are required to adequately address age-specific aspects of the comorbidities. The deployment of preclinical Common Data Elements (pCDEs) for epilepsy research should facilitate the standardization and the harmonization of studies in question, while the application of Research Domain Criteria (RDoC) to characterize neurobehavioral disorders in animals with epilepsy should help in closing the bench-to-bedside gap. Special Issue: Epilepsy & Behavior's 20th Anniversary.
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Affiliation(s)
- Andrey Mazarati
- Department of Pediatrics, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA.
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33
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Tepper B, Aniszewska A, Bartkowska K, Grochocka L, Turlejski K, Djavadian R. Aged Opossums Show Alterations in Spatial Learning Behavior and Reduced Neurogenesis in the Dentate Gyrus. Front Neurosci 2019; 13:1210. [PMID: 31780889 PMCID: PMC6861328 DOI: 10.3389/fnins.2019.01210] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Accepted: 10/28/2019] [Indexed: 01/10/2023] Open
Abstract
In many mammalian species including opossums, adult neurogenesis, the function of which is not completely understood, declines with aging. Aging also causes impairment of cognition. To understand whether new neurons contribute to learning and memory, we performed experiments on young and aged laboratory opossums, Monodelphis domestica, and examined the association between spatial memory using the Morris water maze test and the rate of adult neurogenesis in the dentate gyrus (DG). Modification of this test allowed us to assess how both young and aged opossums learn and remember the location of the platform in the water maze. We found that both young and aged opossums were motivated to perform this task. However, aged opossums needed more time to achieve the test than young opossums. Classical parameters measuring spatial learning in a water maze during a probe test showed that young opossums spent more time in the platform zone crossing it more often than aged opossums. Additionally, hippocampal neurogenesis was lower in the aged opossums than in the young animals but new neurons were still generated in the DG of aged opossums. Our data revealed individual differences in the levels of doublecortin in relation to memory performance across aged opossums. These differences were correlated with distinct behaviors, particularly, aged opossums with high levels of DCX achieved high performance levels in the water maze task. We, therefore suggest that new neurons in the DG of Monodelphis opossums contribute to learning and memory.
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Affiliation(s)
- Beata Tepper
- Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland
| | - Agata Aniszewska
- Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland
- Department of Public Health and Caring Sciences, Uppsala University, Uppsala, Sweden
| | - Katarzyna Bartkowska
- Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland
| | - Lilianna Grochocka
- Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland
| | - Krzysztof Turlejski
- Faculty of Biology and Environmental Sciences, Cardinal Stefan Wyszyński University in Warsaw, Warsaw, Poland
| | - Ruzanna Djavadian
- Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland
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