Neurotoxicity Research最新文献

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Divergent Pattern of Development in Rats and Humans. 大鼠和人类不同的发育模式
IF 3.7 3区 医学
Neurotoxicity Research Pub Date : 2023-12-26 DOI: 10.1007/s12640-023-00683-y
Wanda Campos Eusebi, Tomas Iorii, Antonella Presti, Rafael Grimson, Pablo Vázquez-Borsetti
{"title":"Divergent Pattern of Development in Rats and Humans.","authors":"Wanda Campos Eusebi, Tomas Iorii, Antonella Presti, Rafael Grimson, Pablo Vázquez-Borsetti","doi":"10.1007/s12640-023-00683-y","DOIUrl":"10.1007/s12640-023-00683-y","url":null,"abstract":"<p><p>Rattus norvegicus is the second most used laboratory species and the most widely used model in neuroscience. Nonetheless, there is still no agreement regarding the temporal relationship of development between humans and rats. We addressed this question by examining the time required to reach a set of homologous developmental milestones in both species. With this purpose, a database was generated with data collected through a bibliographic survey. This database was in turn compared with other databases about the same topic present in the literature. Finally, the databases were combined, covering for the first time the entire development of the rat including the prenatal, perinatal, and postnatal periods. This combined database includes 362 dates of 181 developmental events for each species. The developmental relationship between humans and rats was better fit by a logarithmic function than by a linear function. As development progresses, an increase in the dispersion of the data is observed. Developmental relationships should not be interpreted as a univocal equivalence. In this work is proposed an alternative interpretation where the age of one species is translated into a range of ages in the other.</p>","PeriodicalId":19193,"journal":{"name":"Neurotoxicity Research","volume":"42 1","pages":"7"},"PeriodicalIF":3.7,"publicationDate":"2023-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139037928","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Local Administrations of Iron Oxide Nanoparticles in the Prefrontal Cortex and Caudate Putamen of Rats Do Not Compromise Working Memory and Motor Activity. 在大鼠前额叶皮层和尾状普门局部施用纳米氧化铁不会损害工作记忆和运动活动
IF 3.7 3区 医学
Neurotoxicity Research Pub Date : 2023-12-22 DOI: 10.1007/s12640-023-00684-x
Ellen Irrsack, Sidar Aydin, Katja Bleckmann, Julia Schuller, Ralf Dringen, Michael Koch
{"title":"Local Administrations of Iron Oxide Nanoparticles in the Prefrontal Cortex and Caudate Putamen of Rats Do Not Compromise Working Memory and Motor Activity.","authors":"Ellen Irrsack, Sidar Aydin, Katja Bleckmann, Julia Schuller, Ralf Dringen, Michael Koch","doi":"10.1007/s12640-023-00684-x","DOIUrl":"10.1007/s12640-023-00684-x","url":null,"abstract":"<p><p>Iron oxide nanoparticles (IONPs) have come into focus for their use in medical applications although possible health risks for humans, especially in terms of brain functions, have not yet been fully clarified. The present study investigates the effects of IONPs on neurobehavioural functions in rats. For this purpose, we infused dimercaptosuccinic acid-coated IONPs into the medial prefrontal cortex (mPFC) and caudate putamen (CPu). Saline (VEH) and ferric ammonium citrate (FAC) were administered as controls. One- and 4-week post-surgery mPFC-infused animals were tested for their working memory performance in the delayed alternation T-maze task and in the open field (OF) for motor activity, and CPu-infused rats were tested for their motor activity in the OF. After completion of the experiments, the brains were examined histologically and immunohistochemically. We did not observe any behavioural or structural abnormalities in the rats after administration of IONPs in the mPFC and the CPu. In contrast, administration of FAC into the CPu resulted in decreased motor activity and increased the number of microglia in the mPFC. Perls' Prussian blue staining revealed that FAC- and IONP-treated rats had more iron-containing ramified cells than VEH-treated rats, indicating iron uptake by microglia. Our results demonstrate that local infusions of IONPs into selected brain regions have no adverse impact on locomotor behaviour and working memory.</p>","PeriodicalId":19193,"journal":{"name":"Neurotoxicity Research","volume":"42 1","pages":"6"},"PeriodicalIF":3.7,"publicationDate":"2023-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10746586/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138830681","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Modulation of Neuronal Damage in DRG by Asprosin in a High-Glucose Environment and Its Impact on miRNA181-a Expression in Diabetic DRG. 阿司匹林在高血糖环境中对DRG神经元损伤的调节作用及其对糖尿病DRG中miRNA181-a表达的影响
IF 3.7 3区 医学
Neurotoxicity Research Pub Date : 2023-12-22 DOI: 10.1007/s12640-023-00678-9
Muhammed Adam, Sibel Ozcan, Semih Dalkilic, Nalan Kaya Tektemur, Suat Tekin, Batuhan Bilgin, Munevver Gizem Hekim, Ferah Bulut, Muhammed Mirac Kelestemur, Sinan Canpolat, Mete Ozcan
{"title":"Modulation of Neuronal Damage in DRG by Asprosin in a High-Glucose Environment and Its Impact on miRNA181-a Expression in Diabetic DRG.","authors":"Muhammed Adam, Sibel Ozcan, Semih Dalkilic, Nalan Kaya Tektemur, Suat Tekin, Batuhan Bilgin, Munevver Gizem Hekim, Ferah Bulut, Muhammed Mirac Kelestemur, Sinan Canpolat, Mete Ozcan","doi":"10.1007/s12640-023-00678-9","DOIUrl":"10.1007/s12640-023-00678-9","url":null,"abstract":"<p><p>Asprosin, a hormone secreted from adipose tissue, has been implicated in the modulation of cell viability. Current studies suggest that neurological impairments are increased in individuals with obesity-linked diabetes, likely due to the presence of excess adipose tissue, but the precise molecular mechanism behind this association remains poorly understood. In this study, our hypothesis that asprosin has the potential to mitigate neuronal damage in a high glucose (HG) environment while also regulating the expression of microRNA (miRNA)-181a, which is involved in critical biological processes such as cellular survival, apoptosis, and autophagy. To investigate this, dorsal root ganglion (DRG) neurons were exposed to asprosin in a HG (45 mmol/L) environment for 24 hours, with a focus on the role of the protein kinase A (PKA) pathway. Expression of miRNA-181a was measured by using real-time polymerase chain reaction (RT-PCR) in diabetic DRG. Our findings revealed a decline in cell viability and an upregulation of apoptosis under HG conditions. However, pretreatment with asprosin in sensory neurons effectively improved cell viability and reduced apoptosis by activating the PKA pathway. Furthermore, we observed that asprosin modulated the expression of miRNA-181a in diabetic DRG. Our study demonstrates that asprosin has the potential to protect DRG neurons from HG-induced damage while influencing miRNA-181a expression in diabetic DRG. These findings provide valuable insights for the development of clinical interventions targeting neurotoxicity in diabetes, with asprosin emerging as a promising therapeutic target for managing neurological complications in affected individuals.</p>","PeriodicalId":19193,"journal":{"name":"Neurotoxicity Research","volume":"42 1","pages":"5"},"PeriodicalIF":3.7,"publicationDate":"2023-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138830682","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Gut-Brain Axis Deregulation and Its Possible Contribution to Neurodegenerative Disorders 肠脑轴失调及其对神经退行性疾病的可能影响
IF 3.7 3区 医学
Neurotoxicity Research Pub Date : 2023-12-16 DOI: 10.1007/s12640-023-00681-0
Francisca Villavicencio-Tejo, Margrethe A. Olesen, Laura Navarro, Nancy Calisto, Cristian Iribarren, Katherine García, Gino Corsini, Rodrigo A. Quintanilla
{"title":"Gut-Brain Axis Deregulation and Its Possible Contribution to Neurodegenerative Disorders","authors":"Francisca Villavicencio-Tejo, Margrethe A. Olesen, Laura Navarro, Nancy Calisto, Cristian Iribarren, Katherine García, Gino Corsini, Rodrigo A. Quintanilla","doi":"10.1007/s12640-023-00681-0","DOIUrl":"https://doi.org/10.1007/s12640-023-00681-0","url":null,"abstract":"<h3>Abstract</h3> <p>The gut-brain axis is an essential communication pathway between the central nervous system (CNS) and the gastrointestinal tract. The human microbiota is composed of a diverse and abundant microbial community that compasses more than 100 trillion microorganisms that participate in relevant physiological functions such as host nutrient metabolism, structural integrity, maintenance of the gut mucosal barrier, and immunomodulation. Recent evidence in animal models has been instrumental in demonstrating the possible role of the microbiota in neurodevelopment, neuroinflammation, and behavior. Furthermore, clinical studies suggested that adverse changes in the microbiota can be considered a susceptibility factor for neurological disorders (NDs), such as Alzheimer’s disease (AD), Parkinson’s disease (PD), Huntington’s disease (HD), and amyotrophic lateral sclerosis (ALS). In this review, we will discuss evidence describing the role of gut microbes in health and disease as a relevant risk factor in the pathogenesis of neurodegenerative disorders, including AD, PD, HD, and ALS.</p>","PeriodicalId":19193,"journal":{"name":"Neurotoxicity Research","volume":"14 1","pages":""},"PeriodicalIF":3.7,"publicationDate":"2023-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138685099","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Butyrate Protects and Synergizes with Nicotine against Iron- and Manganese-induced Toxicities in Cell Culture 丁酸盐在细胞培养中保护尼古丁并与尼古丁协同对抗铁和锰诱导的毒性
IF 3.7 3区 医学
Neurotoxicity Research Pub Date : 2023-12-14 DOI: 10.1007/s12640-023-00682-z
Yousef Tizabi, Bruk Getachew, Michael Aschner
{"title":"Butyrate Protects and Synergizes with Nicotine against Iron- and Manganese-induced Toxicities in Cell Culture","authors":"Yousef Tizabi, Bruk Getachew, Michael Aschner","doi":"10.1007/s12640-023-00682-z","DOIUrl":"https://doi.org/10.1007/s12640-023-00682-z","url":null,"abstract":"<p>Toxic exposures to heavy metals, such as iron (Fe) and manganese (Mn), can result in long-range neurological diseases and are therefore of significant environmental and medical concerns. We have previously reported that damage to neuroblastoma-derived dopaminergic cells (SH-SY5Y) by both Fe and Mn could be prevented by pre-treatment with nicotine. Moreover, butyrate, a short chain fatty acid (SCFA) provided protection against salsolinol, a selective dopaminergic toxin, in the same cell line. Here, we broadened the investigation to determine whether butyrate might also protect against Fe and/or Mn, and whether, if combined with nicotine, an additive or synergistic effect might be observed. Both butyrate and nicotine concentration-dependently blocked Fe and Mn toxicities. Ineffective concentrations of nicotine and butyrate, when combined, provided full protection against both Fe and Mn. Moreover, the effects of nicotine but not butyrate could be blocked by mecamylamine, a non-selective nicotinic antagonist. On the other hand, the effects of butyrate, but not nicotine, could be blocked by beta-hydroxy butyrate, a fatty acid-3 receptor antagonist. These results not only provide further support for neuroprotective effects of both nicotine and butyrate but also indicate distinct mechanisms of action for each one. Furthermore, potential utility of butyrate and nicotine combination against heavy metal toxicities is suggested.</p>","PeriodicalId":19193,"journal":{"name":"Neurotoxicity Research","volume":"32 1","pages":""},"PeriodicalIF":3.7,"publicationDate":"2023-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138628221","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Static Magnetic Field Reduces Intracellular ROS Levels and Protects Cells Against Peroxide-Induced Damage: Suggested Roles for Catalase 静态磁场降低细胞内 ROS 水平并保护细胞免受过氧化物引发的损伤建议过氧化氢酶发挥的作用
IF 3.7 3区 医学
Neurotoxicity Research Pub Date : 2023-12-14 DOI: 10.1007/s12640-023-00679-8
Emilli Caroline Garcia Frachini, Jean Bezerra Silva, Barbara Fornaciari, Maurício S. Baptista, Henning Ulrich, Denise Freitas Siqueira Petri
{"title":"Static Magnetic Field Reduces Intracellular ROS Levels and Protects Cells Against Peroxide-Induced Damage: Suggested Roles for Catalase","authors":"Emilli Caroline Garcia Frachini, Jean Bezerra Silva, Barbara Fornaciari, Maurício S. Baptista, Henning Ulrich, Denise Freitas Siqueira Petri","doi":"10.1007/s12640-023-00679-8","DOIUrl":"https://doi.org/10.1007/s12640-023-00679-8","url":null,"abstract":"<p>A feature in neurodegenerative disorders is the loss of neurons, caused by several factors including oxidative stress induced by reactive oxygen species (ROS). In this work, static magnetic field (SMF) was applied in vitro to evaluate its effect on the viability, proliferation, and migration of human neuroblastoma SH-SY5Y cells, and on the toxicity induced by hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>), tert-butyl hydroperoxide (tBHP), H<sub>2</sub>O<sub>2</sub>/sodium azide (NaN<sub>3</sub>) and photosensitized oxidations by photodynamic therapy (PDT) photosensitizers. The SMF increased almost twofold the cell expression of the proliferation biomarker Ki-67 compared to control cells after 7 days of exposure. Exposure to SMF accelerated the wound healing of scratched cell monolayers and significantly reduced the H<sub>2</sub>O<sub>2</sub>-induced and the tBHP-induced cell deaths. Interestingly, SMF was able to revert the effects of NaN<sub>3</sub> (a catalase inhibitor), suggesting an increased activity of catalase under the influence of the magnetic field. In agreement with this hypothesis, SMF significantly reduced the oxidation of DCF-H2, indicating a lower level of intracellular ROS. When the redox imbalance was triggered through photosensitized oxidation, no protection was observed. This observation aligns with the proposed role of catalase in cellular proctetion under SMF. Exposition to SMF should be further validated in vitro and in vivo as a potential therapeutic approach for neurodegenerative disorders.</p><h3 data-test=\"abstract-sub-heading\">Graphical Abstract</h3>","PeriodicalId":19193,"journal":{"name":"Neurotoxicity Research","volume":"4 1","pages":""},"PeriodicalIF":3.7,"publicationDate":"2023-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138628273","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Mechanistic Implications of GSK and CREB Crosstalk in Ischemia Injury 缺血损伤中 GSK 和 CREB 交叉作用的机制含义
IF 3.7 3区 医学
Neurotoxicity Research Pub Date : 2023-12-13 DOI: 10.1007/s12640-023-00680-1
Heena Khan, Annu Bangar, Amarjot Kaur Grewal, Thakur Gurjeet Singh
{"title":"Mechanistic Implications of GSK and CREB Crosstalk in Ischemia Injury","authors":"Heena Khan, Annu Bangar, Amarjot Kaur Grewal, Thakur Gurjeet Singh","doi":"10.1007/s12640-023-00680-1","DOIUrl":"https://doi.org/10.1007/s12640-023-00680-1","url":null,"abstract":"<p>Ischemia-reperfusion (IR) injury is a damage to an organ when the blood supply is less than the demand required for normal functioning, leading to exacerbation of cellular dysfunction and death. IR injury occurs in different organs like the kidney, liver, heart, brain, etc., and may not only involve the ischemic organ but also cause systemic damage to distant organs. Oxygen-glucose deprivation in cells causes oxidative stress, calcium overloading, inflammation, and apoptosis. CREB is an essential integrator of the body’s various physiological systems, and it is widely accepted that dysfunction of CREB signaling is involved in many diseases, including ischemia-reperfusion injury. The activation of CREB can provide life to a cell and increase the cell’s survival after ischemia. Hence, GSK/CREB signaling pathway can provide significant protection to cells of different organs after ischemia and emerges as a futuristic strategy for managing ischemia-reperfusion injury. Different signaling pathways such as MAPK/ERK, TLR4/MyD88, RISK, Nrf2, and NF-κB, get altered during IR injury by the modulation of GSK-3 and CREB (cyclic AMP response element (CRE)–binding protein). GSK-3 (protein kinase B) and CREB are the downstream targets for fulfilling the roles of various signaling pathways. Calcium overloading during ischemia increases the expression of calcium-calmodulin-dependent protein kinase (CaMK), which subsequently activates CREB-mediated transcription, thus promoting the survival of cells. Furthermore, this review highlights the crosstalk between GSK-3 and CREB, promoting survival and rendering the cells resistant to subsequent severe ischemia.</p>","PeriodicalId":19193,"journal":{"name":"Neurotoxicity Research","volume":"84 1","pages":""},"PeriodicalIF":3.7,"publicationDate":"2023-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138580960","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Folic Acid and Folinic Acid Protect Hearts of Aging Triple-transgenic Alzheimer's Disease mice via IGF1R/PI3K/AKT and SIRT1/AMPK Pathways. 叶酸和亚叶酸通过IGF1R/PI3K/AKT和SIRT1/AMPK通路保护衰老三转基因阿尔茨海默病小鼠的心脏
IF 3.7 3区 医学
Neurotoxicity Research Pub Date : 2023-12-01 Epub Date: 2023-09-14 DOI: 10.1007/s12640-023-00666-z
Da-Tong Ju, Rwei-Fen S Huang, Bruce Chi-Kang Tsai, Yi-Chen Su, Ping-Ling Chiu, Yung-Ming Chang, V Vijaya Padma, Tsung-Jung Ho, Chun-Hsu Yao, Wei-Wen Kuo, Chih-Yang Huang
{"title":"Folic Acid and Folinic Acid Protect Hearts of Aging Triple-transgenic Alzheimer's Disease mice via IGF1R/PI3K/AKT and SIRT1/AMPK Pathways.","authors":"Da-Tong Ju, Rwei-Fen S Huang, Bruce Chi-Kang Tsai, Yi-Chen Su, Ping-Ling Chiu, Yung-Ming Chang, V Vijaya Padma, Tsung-Jung Ho, Chun-Hsu Yao, Wei-Wen Kuo, Chih-Yang Huang","doi":"10.1007/s12640-023-00666-z","DOIUrl":"10.1007/s12640-023-00666-z","url":null,"abstract":"<p><p>Patients with Alzheimer's disease have increased risk of developing heart disease, which therefore highlights the need for strategies aiming at reducing Alzheimer's disease-related cardiovascular disease. Folic acid and folinic acid are beneficial to the heart. We aimed to investigate the benefits of folic acid and folinic acid in heart of patients with late-stage Alzheimer's disease. Twelve 16-month-old mice of triple-transgenic late-stage Alzheimer's disease were divided into three groups: Alzheimer's disease group, Alzheimer's disease + folic acid group, and Alzheimer's disease + folinic acid group. The mice were administered 12 mg/kg folic acid or folinic acid once daily via oral gavage for 3 months. In the folic acid and folinic acid treatment groups, the intercellular space was reduced, compared with the Alzheimer's disease group. TUNEL assay and western blot images showed that the number of apoptotic cells and the apoptosis-related protein expression were higher in the Alzheimer's disease group than in other two treated groups. Folic acid and folinic acid induced the IGF1R/PI3K/AKT and SIRT1/ AMPK pathways in the hearts of mice with Alzheimer's disease. Our results showed that folic acid and folinic acid treatment increased survival and SIRT1 expression to reduce apoptotic proteins in the heart. The aging mice treated with folinic acid had more IGF1R and SIRT1/AMPK axes to limit myocardial cell apoptosis. In conclusion, folic acid and folinic acid promote cardiac cell survival and prevent apoptosis to inhibit heart damage in aging mice with triple-transgenic late-stage Alzheimer's disease. In particular, folinic acid provides a better curative effect than folic acid.</p>","PeriodicalId":19193,"journal":{"name":"Neurotoxicity Research","volume":" ","pages":"648-659"},"PeriodicalIF":3.7,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10231061","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Pentoxifylline as Add-On Treatment to Donepezil in Copper Sulphate-Induced Alzheimer's Disease-Like Neurodegeneration in Rats. 戊酮可可碱作为多奈哌齐的补充治疗硫酸铜诱导的大鼠阿尔茨海默病样神经变性。
IF 3.7 3区 医学
Neurotoxicity Research Pub Date : 2023-12-01 Epub Date: 2023-10-12 DOI: 10.1007/s12640-023-00672-1
Mohamed M Elseweidy, Mohamed Mahrous, Sousou I Ali, Mohamed A Shaheen, Nahla N Younis
{"title":"Pentoxifylline as Add-On Treatment to Donepezil in Copper Sulphate-Induced Alzheimer's Disease-Like Neurodegeneration in Rats.","authors":"Mohamed M Elseweidy, Mohamed Mahrous, Sousou I Ali, Mohamed A Shaheen, Nahla N Younis","doi":"10.1007/s12640-023-00672-1","DOIUrl":"10.1007/s12640-023-00672-1","url":null,"abstract":"<p><p>Alzheimer's disease (AD), the most common neurodegenerative disorder, is characterized by behavioral, cognitive, and progressive memory impairments. Extensive neuronal loss, extracellular accumulation of insoluble senile amyloid-β (Aβ) plaques, and intracellular neurofibrillary tangles (NFTs) are the major pathological features. The present study aimed to investigate the therapeutic effect of donepezil (DON) and pentoxifylline (PTX) in combination to combat the neurodegenerative disorders (experimental AD) induced by CuSO<sub>4</sub> intake in experimental rats. Thirty adult male Wistar rats (140-160 g) were used in this study. AD was first induced in rats by CuSO<sub>4</sub> supplement to drinking water (10 mg/L) for 14 weeks. The AD group received no further treatment. Oral treatment with DON (10 mg/kg/day), PTX (100 mg/kg/day), or DON + PTX for the other three groups was started from the 10th week of CuSO<sub>4</sub> intake for 4 weeks. Cortex markers like acetylcholine (ACh), acetylcholinesterase (AChE), total antioxidant capacity (TAC), and malondialdehyde (MDA) and hippocampus markers like β-amyloid precursor protein cleaving enzyme 1 (BACE1), phosphorylated Tau (p-tau), Clusterin (CLU), tumor necrosis factor-α (TNF-α), caspase-9 (CAS-9), Bax, and Bcl-2 were measured. The histopathology studies were done by using hematoxylin and eosin and Congo red stains as well as immunohistochemistry for neurofilament. CuSO<sub>4</sub> induced adverse histological and biochemical changes. The histological injury in the hippocampus was inhibited following the administration of the DON and PTX. The brain tissue levels of AChE, MDA, BACE1, p-tau, CLU, CAS-9, Bax, and TNF-α were significantly increased, while brain tissue levels of ACh, TAC, and Bcl-2 were significantly decreased in CuSO<sub>4</sub>-treated rats as compared with the untreated control group. The effects induced by either DON or PTX on most studied parameters were comparable. Combined treatment of DON and PTX induced remarkable results compared with their individual use. However, more clinical and preclinical studies are still required to further confirm and prove the long-term efficacy of such combination.</p>","PeriodicalId":19193,"journal":{"name":"Neurotoxicity Research","volume":" ","pages":"546-558"},"PeriodicalIF":3.7,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10682165/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41207195","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effects of Multiple High-Dose Methamphetamine Administration on Enteric Dopaminergic Neurons and Intestinal Motility in the Rat Model. 多次大剂量甲基苯丙胺给药对大鼠模型中肠道多巴胺能神经元和肠道运动的影响。
IF 3.7 3区 医学
Neurotoxicity Research Pub Date : 2023-12-01 Epub Date: 2023-09-27 DOI: 10.1007/s12640-023-00668-x
Li He, Huihui Zheng, Jilong Qiu, Hong Chen, Huan Li, Yuejiao Ma, Yingying Wang, Qianjin Wang, Yuzhu Hao, Yueheng Liu, Qian Yang, Xin Wang, Manyun Li, Huixue Xu, Pu Peng, Zejun Li, Yanan Zhou, Qiuxia Wu, Shubao Chen, Xiaojie Zhang, Tieqiao Liu
{"title":"Effects of Multiple High-Dose Methamphetamine Administration on Enteric Dopaminergic Neurons and Intestinal Motility in the Rat Model.","authors":"Li He, Huihui Zheng, Jilong Qiu, Hong Chen, Huan Li, Yuejiao Ma, Yingying Wang, Qianjin Wang, Yuzhu Hao, Yueheng Liu, Qian Yang, Xin Wang, Manyun Li, Huixue Xu, Pu Peng, Zejun Li, Yanan Zhou, Qiuxia Wu, Shubao Chen, Xiaojie Zhang, Tieqiao Liu","doi":"10.1007/s12640-023-00668-x","DOIUrl":"10.1007/s12640-023-00668-x","url":null,"abstract":"<p><p>Several studies have identified the effects of methamphetamine (MA) on central dopaminergic neurons, but its effects on enteric dopaminergic neurons (EDNs) are unclear. The aim of this study was to investigate the effects of MA on EDNs and intestinal motility. Male Sprague-Dawley rats were randomly divided into MA group and saline group. The MA group received the multiple high-dose MA treatment paradigm, while the controls received the same saline treatment. After enteric motility was assessed, different intestinal segments (i.e., duodenum, jejunum, ileum, and colon) were taken for histopathological, molecular biological, and immunological analysis. The EDNs were assessed by measuring the expression of two dopaminergic neuronal markers, dopamine transporter (DAT) and tyrosine hydroxylase (TH), at the transcriptional and protein levels. We also used c-Fos protein, a marker of neural activity, to detect the activation of EDNs. MA resulted in a significant reduction in TH and DAT mRNA expression as well as in the number of EDNs in the duodenum and jejunum (p < 0.05). MA caused a dramatic increase in c-Fos expression of EDNs in the ileum (p < 0.001). The positional variability of MA effects on EDNs paralleled the positional variability of its effect on intestinal motility, as evidenced by the marked inhibitory effect of MA on small intestinal motility (p < 0.0001). This study found significant effects of MA on EDNs with locational variability, which might be relevant to locational variability in the potential effects of MA on intestinal functions, such as motility.</p>","PeriodicalId":19193,"journal":{"name":"Neurotoxicity Research","volume":" ","pages":"604-614"},"PeriodicalIF":3.7,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41159437","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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