51
|
Lin J, Wang S, Feng Y, Zhao W, Zhao W, Luo F, Feng N. Propofol exposure during early gestation impairs learning and memory in rat offspring by inhibiting the acetylation of histone. J Cell Mol Med 2018; 22:2600-2611. [PMID: 29461008 PMCID: PMC5908131 DOI: 10.1111/jcmm.13524] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Accepted: 12/12/2017] [Indexed: 12/22/2022] Open
Abstract
Propofol is widely used in clinical practice, including non-obstetric surgery in pregnant women. Previously, we found that propofol anaesthesia in maternal rats during the third trimester (E18) caused learning and memory impairment to the offspring rats, but how about the exposure during early pregnancy and the underlying mechanisms? Histone acetylation plays an important role in synaptic plasticity. In this study, propofol was administered to the pregnant rats in the early pregnancy (E7). The learning and memory function of the offspring were tested by Morris water maze (MWM) test on post-natal day 30. Two hours before each MWM trial, histone deacetylase 2 (HDAC2) inhibitor, suberoylanilide hydroxamic acid (SAHA), Senegenin (SEN, traditional Chinese medicine), hippyragranin (HGN) antisense oligonucleotide (HGNA) or vehicle were given to the offspring. The protein levels of HDAC2, acetylated histone 3 (H3) and 4 (H4), cyclic adenosine monophosphate (cAMP) response element-binding protein (CREB), N-methyl-D-aspartate receptor (NMDAR) 2 subunit B (NR2B), HGN and synaptophysin in offspring's hippocampus were determined by Western blot or immunofluorescence test. It was discovered that infusion with propofol in maternal rats on E7 leads to impairment of learning and memory in offspring, increased the protein levels of HDAC2 and HGN, decreased the levels of acetylated H3 and H4 and phosphorylated CREB, NR2B and synaptophysin. HDAC2 inhibitor SAHA, Senegenin or HGN antisense oligonucleotide reversed all the changes. Thus, present results indicate exposure to propofol during the early gestation impairs offspring's learning and memory via inhibiting histone acetylation. SAHA, Senegenin and HGN antisense oligonucleotide might have therapeutic value for the adverse effect of propofol.
Collapse
Affiliation(s)
- Jiamei Lin
- Department of Anesthesiology, the First Affiliated Hospital, Nanchang University, Nanchang, China.,Department of Anesthesiology, the Eastern Hospital of the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Shengqiang Wang
- Department of Anesthesiology, the First Affiliated Hospital, Nanchang University, Nanchang, China
| | - Yunlin Feng
- Department of Anesthesiology, the First Affiliated Hospital, Nanchang University, Nanchang, China
| | - Weihong Zhao
- Department of Anesthesiology, the First Affiliated Hospital, Nanchang University, Nanchang, China
| | - Weilu Zhao
- Department of Anesthesiology, the First Affiliated Hospital, Nanchang University, Nanchang, China
| | - Foquan Luo
- Department of Anesthesiology, the First Affiliated Hospital, Nanchang University, Nanchang, China
| | - Namin Feng
- Department of Anesthesiology, the First Affiliated Hospital, Nanchang University, Nanchang, China
| |
Collapse
|
52
|
Li X, Li Y, Zhao J, Li L, Wang Y, Zhang Y, Li Y, Chen Y, Liu W, Gao L. Administration of Ketamine Causes Autophagy and Apoptosis in the Rat Fetal Hippocampus and in PC12 Cells. Front Cell Neurosci 2018; 12:21. [PMID: 29456493 PMCID: PMC5801406 DOI: 10.3389/fncel.2018.00021] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Accepted: 01/15/2018] [Indexed: 11/18/2022] Open
Abstract
Drug abuse during pregnancy is a serious problem. Like alcohol, anticonvulsants, sedatives, and anesthetics, such as ketamine, can pass through the placental barrier and affect the growing fetus. However, the mechanism by which ketamine causes damage to fetal rats is not well understood. Therefore, in this study, we anesthetized pregnant rats with ketamine and evaluated the Total Antioxidant Capacity (T-AOC), Reactive Oxygen Species (ROS), and Malondialdehyde (MDA). Moreover, we determined changes in the levels of Cleaved-Caspase-3 (C-Caspase-3), Beclin-1, B-cell lymphoma-2 (Bcl-2), Bcl-2 Associated X Protein (Bax), Autophagy-related gene 4 (Atg4), Atg5, p62 (SQSTM1), and marker of autophagy Light Chain 3 (LC3). In addition, we cultured PC12 cells in vitro to determine the relationship between ROS, autophagy, and apoptosis following ketamine treatment. The results showed that ketamine induced changes in autophagy- and apoptosis-related proteins, reduced T-AOC, and generated excessive levels of ROS and MDA. In vitro experiments showed similar results, indicating that apoptosis levels can be inhibited by 3-MA. We also found that autophagy and apoptosis can be inhibited by N-acetyl-L-cysteine (Nac). Thus, anesthesia with ketamine in pregnant rats may increase the rate of autophagy and apoptosis in the fetal hippocampus and the mechanism may be through inhibition of antioxidant activity and ROS accumulation.
Collapse
Affiliation(s)
- Xinran Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- Key Laboratory of the Provincial Education, Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Northeast Agricultural University, Harbin, China
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Northeast Agricultural University, Harbin, China
| | - Yanan Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- Key Laboratory of the Provincial Education, Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Northeast Agricultural University, Harbin, China
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Northeast Agricultural University, Harbin, China
| | - Jinghua Zhao
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- Key Laboratory of the Provincial Education, Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Northeast Agricultural University, Harbin, China
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Northeast Agricultural University, Harbin, China
| | - Lina Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- Key Laboratory of the Provincial Education, Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Northeast Agricultural University, Harbin, China
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Northeast Agricultural University, Harbin, China
| | - Yuxin Wang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- Key Laboratory of the Provincial Education, Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Northeast Agricultural University, Harbin, China
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Northeast Agricultural University, Harbin, China
| | - Yiming Zhang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- Key Laboratory of the Provincial Education, Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Northeast Agricultural University, Harbin, China
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Northeast Agricultural University, Harbin, China
| | - Yue Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- Key Laboratory of the Provincial Education, Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Northeast Agricultural University, Harbin, China
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Northeast Agricultural University, Harbin, China
| | - Yu Chen
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- Key Laboratory of the Provincial Education, Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Northeast Agricultural University, Harbin, China
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Northeast Agricultural University, Harbin, China
| | - Wenhan Liu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- Key Laboratory of the Provincial Education, Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Northeast Agricultural University, Harbin, China
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Northeast Agricultural University, Harbin, China
| | - Li Gao
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- Key Laboratory of the Provincial Education, Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Northeast Agricultural University, Harbin, China
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Northeast Agricultural University, Harbin, China
| |
Collapse
|
53
|
Tith S, Bining G, Bollag L. Management of eight labor and delivery patients dependent on buprenorphine (Subutex™): A retrospective chart review. F1000Res 2018. [PMID: 29527296 PMCID: PMC5820592 DOI: 10.12688/f1000research.13350.2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Background: Opioid use during pregnancy is a growing concern in the United States. Buprenorphine has been recommended by “The American College of Obstetrics and Gynecology” as an alternative to methadone to decrease risks associated with the use of illicit opioids during pregnancy. The partial μ-opioid agonists’ unique pharmacology, including its long half time and high affinity to the μ-opioid receptor, complicates patient management in a highly kinetic, and often urgent field like obstetric anesthesia. We reviewed our management and outcomes in this medically complex population. Methods: An Institutional Review Board (IRB) approved retrospective chart review was conducted of women admitted to the University of Washington Medical Center Labor and Delivery unit from July 2012 to November 2013 using buprenorphine. All deliveries, including intrauterine fetal demise, were included. Results: Eight women were admitted during this period to our L&D floor on buprenorphine. All required peri-partum anesthetic management either for labor and/or cesarean delivery management. Analgesic management included dilaudid or fentanyl PCA and/or continued epidural infusion, and in one instance ketamine infusion, while the pre-admission buprenorphine regimen was continued. Five babies were viable, two women experienced intrauterine fetal death at 22 and 36 weeks gestational age (GSA), respectively, and one neonate died shortly after delivery due to a congenital diaphragmatic hernia. Conclusions: This case series illuminates the medical complexity of parturients using buprenorphine. Different treatment modalities in the absence of evidence-based guidelines included additional opioid administration and continued epidural analgesia. The management of post-cesarean pain in patients on partial μ-opioid agonists remains complex and variable, and evidence-based guidelines could be useful for clinicians to direct care.
Collapse
Affiliation(s)
- Solina Tith
- Department of Anesthesia and Perioperative Care, University of California, San Francisco, CA, USA
| | - Garinder Bining
- Department of Anesthesiology and Pain Medicine, University of Washington, Seattle, WA, USA
| | - Laurent Bollag
- Department of Anesthesiology and Pain Medicine, University of Washington, Seattle, WA, USA
| |
Collapse
|
54
|
Tith S, Bining G, Bollag L. Management of eight labor and delivery patients dependent on buprenorphine (Subutex™): A retrospective chart review. F1000Res 2018. [PMID: 29527296 DOI: 10.12688/f1000research.13350.1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Background: Opioid use during pregnancy is a growing concern in the United States. Buprenorphine has been recommended by "The American College of Obstetrics and Gynecology" as an alternative to methadone to decrease risks associated with the use of illicit opioids during pregnancy. The partial μ-opioid agonists' unique pharmacology, including its long half time and high affinity to the μ-opioid receptor, complicates patient management in a highly kinetic, and often urgent field like obstetric anesthesia. We reviewed our management and outcomes in this medically complex population. Methods: An Institutional Review Board (IRB) approved retrospective chart review was conducted of women admitted to the University of Washington Medical Center Labor and Delivery unit from July 2012 to November 2013 using buprenorphine. All deliveries, including intrauterine fetal demise, were included. Results: Eight women were admitted during this period to our L&D floor on buprenorphine. All required peri-partum anesthetic management either for labor and/or cesarean delivery management. Analgesic management included dilaudid or fentanyl PCA and/or continued epidural infusion, and in one instance ketamine infusion, while the pre-admission buprenorphine regimen was continued. Five babies were viable, two women experienced intrauterine fetal death at 22 and 36 weeks gestational age (GSA), respectively, and one neonate died shortly after delivery due to a congenital diaphragmatic hernia. Conclusions: This case series illuminates the medical complexity of parturients using buprenorphine. Different treatment modalities in the absence of evidence-based guidelines included additional opioid administration and continued epidural analgesia. The management of post-cesarean pain in patients on partial μ-opioid agonists remains complex and variable, and evidence-based guidelines could be useful for clinicians to direct care.
Collapse
Affiliation(s)
- Solina Tith
- Department of Anesthesia and Perioperative Care, University of California, San Francisco, CA, USA
| | - Garinder Bining
- Department of Anesthesiology and Pain Medicine, University of Washington, Seattle, WA, USA
| | - Laurent Bollag
- Department of Anesthesiology and Pain Medicine, University of Washington, Seattle, WA, USA
| |
Collapse
|
55
|
Coronel-Oliveros CM, Pacheco-Calderón R. Prenatal exposure to ketamine in rats: Implications on animal models of schizophrenia. Dev Psychobiol 2017; 60:30-42. [DOI: 10.1002/dev.21586] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Accepted: 09/28/2017] [Indexed: 01/19/2023]
Affiliation(s)
- Carlos M. Coronel-Oliveros
- Laboratorio de Neurociencias y Comportamiento (LabNeC); Centro de Estudios en Zoología Aplicada (CEZA); Facultad Experimental de Ciencias y Tecnología (FACyT); Universidad de Carabobo; Valencia Venezuela
| | - Renny Pacheco-Calderón
- Laboratorio de Neurociencias y Comportamiento (LabNeC); Centro de Estudios en Zoología Aplicada (CEZA); Facultad Experimental de Ciencias y Tecnología (FACyT); Universidad de Carabobo; Valencia Venezuela
| |
Collapse
|
56
|
Chung W, Yoon S, Shin YS. Multiple exposures of sevoflurane during pregnancy induces memory impairment in young female offspring mice. Korean J Anesthesiol 2017; 70:642-647. [PMID: 29225748 PMCID: PMC5716823 DOI: 10.4097/kjae.2017.70.6.642] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Revised: 08/17/2017] [Accepted: 08/21/2017] [Indexed: 11/23/2022] Open
Abstract
Background Earlier studies have reported conflicting results regarding long-term behavioral consequences after anesthesia during the fetal period. Previous studies also suggest several factors that may explain such conflicting data. Thus, we examined the influence of age and sex on long-term behavioral consequences after multiple sevoflurane exposures during the fetal period. Methods C57BL/6J pregnant mice received oxygen with or without sevoflurane for 2 hours at gestational day (GD) 14-16. Offspring mice were subjected to behavioral assays for general activity (open field test), learning, and memory (fear chamber test) at postnatal day 30–35. Results Multiple sevoflurane exposures at GD 14–16 caused significant changes during the fear chamber test in young female offspring mice. Such changes did not occur in young male offspring mice. However, general activity was not affected in both male and female mice. Conclusions Multiple sevoflurane exposures in the second trimester of pregnancy affects learning and memory only in young female mice. Further studies focusing on diverse cognitive functions in an age-, sex-dependent manner may provide valuable insights regarding anesthesia-induced neurotoxicity.
Collapse
Affiliation(s)
- Woosuk Chung
- Department of Anesthesiology and Pain Medicine, Chungnam National University Hospital, Daejeon, Korea.,Department of Anesthesiology and Pain Medicine, Chungnam National University College of Medicine, Daejeon, Korea
| | - Seunghwan Yoon
- Department of Anesthesiology and Pain Medicine, Chungnam National University Hospital, Daejeon, Korea
| | - Yong Sup Shin
- Department of Anesthesiology and Pain Medicine, Chungnam National University Hospital, Daejeon, Korea.,Department of Anesthesiology and Pain Medicine, Chungnam National University College of Medicine, Daejeon, Korea
| |
Collapse
|
57
|
Dauvermann MR, Lee G, Dawson N. Glutamatergic regulation of cognition and functional brain connectivity: insights from pharmacological, genetic and translational schizophrenia research. Br J Pharmacol 2017. [PMID: 28626937 DOI: 10.1111/bph.13919] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
The pharmacological modulation of glutamatergic neurotransmission to improve cognitive function has been a focus of intensive research, particularly in relation to the cognitive deficits seen in schizophrenia. Despite this effort, there has been little success in the clinical use of glutamatergic compounds as procognitive drugs. Here, we review a selection of the drugs used to modulate glutamatergic signalling and how they impact on cognitive function in rodents and humans. We highlight how glutamatergic dysfunction, and NMDA receptor hypofunction in particular, is a key mechanism contributing to the cognitive deficits observed in schizophrenia and outline some of the glutamatergic targets that have been tested as putative procognitive targets for this disorder. Using translational research in this area as a leading exemplar, namely, models of NMDA receptor hypofunction, we discuss how the study of functional brain network connectivity can provide new insight into how the glutamatergic system impacts on cognitive function. Future studies characterizing functional brain network connectivity will increase our understanding of how glutamatergic compounds regulate cognition and could contribute to the future success of glutamatergic drug validation. Linked Articles This article is part of a themed section on Pharmacology of Cognition: a Panacea for Neuropsychiatric Disease? To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v174.19/issuetoc.
Collapse
Affiliation(s)
- Maria R Dauvermann
- School of Psychology, National University of Ireland, Galway, Ireland.,McGovern Institute for Brain Research, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Graham Lee
- McGovern Institute for Brain Research, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Neil Dawson
- Division of Biomedical and Life Sciences, Faculty of Health and Medicine, Lancaster University, Lancaster, UK
| |
Collapse
|
58
|
Lee S, Chung W, Park H, Park H, Yoon S, Park S, Park J, Heo JY, Ju X, Yoon SH, Kim YH, Ko Y. Single and multiple sevoflurane exposures during pregnancy and offspring behavior in mice. Paediatr Anaesth 2017; 27:742-751. [PMID: 28497474 DOI: 10.1111/pan.13139] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/05/2017] [Indexed: 01/07/2023]
Abstract
BACKGROUND The second trimester is a period of neurogenesis and neuronal migration, which can be affected by exposure to anesthetics. Studies also suggest that multiple exposures may have a greater impact on neurodevelopment. AIM We investigated whether in utero single or multiple exposures to anesthetics caused long-term behavior changes. METHODS Pregnant mice were randomly divided into four groups on gestational day 14 (GD 14). Mice in the Control × 1 group were exposed to 100% oxygen for 150 min. Mice in the Sevo × 1 group were also exposed to 100% oxygen for 150 min, except that 2.5% sevoflurane was added during the first 120 min. Mice in the Control × 3 and Sevo × 3 group were identically treated as Control × 1 and Sevo × 1 group for three consecutive days, respectively (GD 14-16). Behavioral tests were performed only with the male offspring at the age of 2-4 months. Synaptic plasticity was also compared by inducing long-term potentiation in acute hippocampal slices. RESULTS Single or multiple sevoflurane exposures in pregnant mice during the second trimester did not cause long-lasting behavioral consequences or changes in long-term synaptic plasticity of their offspring. CONCLUSION Our study suggests that neither single nor multiple exposures of mice to sevoflurane during the fetal developmental period induces long-term behavioral dysfunctions or affects long-term synaptic plasticity. Additional studies focusing on early stages of neurodevelopment are necessary to confirm the effects of sevoflurane exposure during pregnancy.
Collapse
Affiliation(s)
- Soomin Lee
- Department of Anesthesiology and Pain Medicine, Chungnam National University, Daejeon, South Korea
| | - Woosuk Chung
- Department of Anesthesiology and Pain Medicine, Chungnam National University, Daejeon, South Korea
| | - Haram Park
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, South Korea.,Department of Anesthesiology and Pain Medicine, Asan Medical Center, Seoul, South Korea
| | - Hanwool Park
- Department of Anesthesiology and Pain Medicine, Asan Medical Center, Seoul, South Korea.,Graduate School of Medical Science and Engineering, KAIST, Daejeon, South Korea
| | - Seunghwan Yoon
- Department of Anesthesiology and Pain Medicine, Chungnam National University, Daejeon, South Korea
| | - Sangil Park
- Department of Anesthesiology and Pain Medicine, Chungnam National University, Daejeon, South Korea
| | - Jiho Park
- Department of Anesthesiology and Pain Medicine, Chungnam National University, Daejeon, South Korea
| | - Jun Young Heo
- Department of Biochemistry, School of Medicine, Chungnam National University, Daejeon, South Korea
| | - Xianshu Ju
- Department of Medical Science, Chungnam National University School of Medicine, Daejeon, South Korea
| | - Seok-Hwa Yoon
- Department of Anesthesiology and Pain Medicine, Chungnam National University, Daejeon, South Korea
| | - Yoon Hee Kim
- Department of Anesthesiology and Pain Medicine, Chungnam National University, Daejeon, South Korea
| | - Youngkwon Ko
- Department of Anesthesiology and Pain Medicine, Chungnam National University, Daejeon, South Korea
| |
Collapse
|
59
|
De Tina A, Palanisamy A. General Anesthesia During the Third Trimester: Any Link to Neurocognitive Outcomes? Anesthesiol Clin 2017; 35:69-80. [PMID: 28131121 DOI: 10.1016/j.anclin.2016.09.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Rodent studies on the effect of general anesthesia during the third trimester on neurocognitive outcomes are mixed, but primate studies suggest that a clinically relevant exposure to anesthetic agents during the third trimester can trigger neuronal and glial cell death. Human studies are conflicting and the evidence is weak. This is an up-to-date review of the literature on the neurodevelopmental effects of anesthetic agents administered during the third trimester. Early brain development and critical periods of neurodevelopment as it relates to neurotoxicity are highlighted. Rodent, nonhuman primate, and population studies are discussed and placed in the context of clinical practice.
Collapse
Affiliation(s)
- Annemaria De Tina
- Obstetric Anesthesiology, Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital, 75 Francis Street - CWN L1, Boston, MA 02115, USA
| | - Arvind Palanisamy
- Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital, Harvard Medical School, 75 Francis Street - CWN L1, Boston, MA 02115, USA.
| |
Collapse
|
60
|
Zhu W, Ding Z, Zhang Y, Shi J, Hashimoto K, Lu L. Risks Associated with Misuse of Ketamine as a Rapid-Acting Antidepressant. Neurosci Bull 2016; 32:557-564. [PMID: 27878517 DOI: 10.1007/s12264-016-0081-2] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Accepted: 10/26/2016] [Indexed: 12/17/2022] Open
Abstract
Major depression is a serious psychiatric disorder and remains a leading cause of disability worldwide. Conventional antidepressants take at least several weeks to achieve a therapeutic response and this lag period has hindered their ability to attain beneficial effects in depressed individuals at high risk of suicide. The non-competitive N-methyl-D-aspartate glutamate receptor antagonist ketamine has been shown to have rapid antidepressant effects in both rodents and humans. The emergence of ketamine as a fast-acting antidepressant provides promising new insights into the development of a rapid treatment response in patients with clinical depression. However, its safety and toxicity remain a concern. In this review, we focus on the limitations of ketamine, including neurotoxicity, cognitive dysfunction, adverse events associated with mental status, psychotomimetic effects, cardiovascular events, and uropathic effects. Studies have shown that its safety and tolerability profiles are generally good at low doses and with short-term treatment in depressed patients. The adverse events associated with ketamine usually occur with very high doses that are administered for prolonged periods of time and can be relieved by cessation. The antidepressant actions of its two enantiomers, S-ketamine (esketamine) and R-ketamine, are also discussed. R-ketamine has greater antidepressant actions than S-ketamine, without ketamine-related side-effects. Future treatment strategies should consider using R-ketamine for the treatment of depressed patients to decrease the risk of adverse events associated with long-term ketamine use.
Collapse
Affiliation(s)
- Weili Zhu
- National Institute on Drug Dependence, Beijing Key Laboratory of Drug Dependence, Peking University, Beijing, 100191, China
| | - Zengbo Ding
- National Institute on Drug Dependence, Beijing Key Laboratory of Drug Dependence, Peking University, Beijing, 100191, China
| | - Yinan Zhang
- National Institute on Drug Dependence, Beijing Key Laboratory of Drug Dependence, Peking University, Beijing, 100191, China
| | - Jie Shi
- National Institute on Drug Dependence, Beijing Key Laboratory of Drug Dependence, Peking University, Beijing, 100191, China
| | - Kenji Hashimoto
- Division of Clinical Neuroscience, Chiba University Center for Forensic Mental Health, Chiba, 260-8670, Japan
| | - Lin Lu
- National Institute on Drug Dependence, Beijing Key Laboratory of Drug Dependence, Peking University, Beijing, 100191, China. .,Institute of Mental Health/Peking University Sixth Hospital, Key Laboratory of Mental Health, Beijing, 100191, China.
| |
Collapse
|
61
|
Luo F, Hu Y, Zhao W, Zuo Z, Yu Q, Liu Z, Lin J, Feng Y, Li B, Wu L, Xu L. Maternal Exposure of Rats to Isoflurane during Late Pregnancy Impairs Spatial Learning and Memory in the Offspring by Up-Regulating the Expression of Histone Deacetylase 2. PLoS One 2016; 11:e0160826. [PMID: 27536989 PMCID: PMC4990207 DOI: 10.1371/journal.pone.0160826] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2015] [Accepted: 06/06/2016] [Indexed: 12/26/2022] Open
Abstract
Increasing evidence indicates that most general anesthetics can harm developing neurons and induce cognitive dysfunction in a dose- and time-dependent manner. Histone deacetylase 2 (HDAC2) has been implicated in synaptic plasticity and learning and memory. Our previous results showed that maternal exposure to general anesthetics during late pregnancy impaired the offspring's learning and memory, but the role of HDAC2 in it is not known yet. In the present study, pregnant rats were exposed to 1.5% isoflurane in 100% oxygen for 2, 4 or 8 hours or to 100% oxygen only for 8 hours on gestation day 18 (E18). The offspring born to each rat were randomly subdivided into 2 subgroups. Thirty days after birth, the Morris water maze (MWM) was used to assess learning and memory in the offspring. Two hours before each MWM trial, an HDAC inhibitor (SAHA) was given to the offspring in one subgroup, whereas a control solvent was given to those in the other subgroup. The results showed that maternal exposure to isoflurane impaired learning and memory of the offspring, impaired the structure of the hippocampus, increased HDAC2 mRNA and downregulated cyclic adenosine monophosphate (cAMP) response element binding protein (CREB) mRNA, N-methyl-D-aspartate receptor 2 subunit B (NR2B) mRNA and NR2B protein in the hippocampus. These changes were proportional to the duration of the maternal exposure to isoflurane and were reversed by SAHA. These results suggest that exposure to isoflurane during late pregnancy can damage the learning and memory of the offspring rats via the HDAC2-CREB -NR2B pathway. This effect can be reversed by HDAC2 inhibition.
Collapse
Affiliation(s)
- Foquan Luo
- Department of Anesthesiology, the First Affiliated Hospital, Nanchang University, Nanchang 33006, China
- * E-mail:
| | - Yan Hu
- Department of Anesthesiology, the First Affiliated Hospital, Nanchang University, Nanchang 33006, China
- Department of Anesthesiology, Jiangxi Province Traditional Chinese Medicine Hospital, Nanchang 33006, China
| | - Weilu Zhao
- Department of Anesthesiology, the First Affiliated Hospital, Nanchang University, Nanchang 33006, China
| | - Zhiyi Zuo
- Department of Anesthesiology, University of Virginia, Charlottesville, VA, 22908, United States of America
| | - Qi Yu
- Department of Anesthesiology, the First Affiliated Hospital, Nanchang University, Nanchang 33006, China
| | - Zhiyi Liu
- Department of Anesthesiology, the First Affiliated Hospital, Nanchang University, Nanchang 33006, China
| | - Jiamei Lin
- Department of Anesthesiology, the First Affiliated Hospital, Nanchang University, Nanchang 33006, China
| | - Yunlin Feng
- Department of Anesthesiology, the First Affiliated Hospital, Nanchang University, Nanchang 33006, China
| | - Binda Li
- Department of Anesthesiology, Jiangxi Province Tumor Hospital, Nanchang 330006, China
| | - Liuqin Wu
- Department of Anesthesiology, Jiangxi Province Tumor Hospital, Nanchang 330006, China
| | - Lin Xu
- Department of Anesthesiology, the First Affiliated Hospital, Nanchang University, Nanchang 33006, China
| |
Collapse
|
62
|
Aschner M, Ceccatelli S, Daneshian M, Fritsche E, Hasiwa N, Hartung T, Hogberg HT, Leist M, Li A, Mundi WR, Padilla S, Piersma AH, Bal-Price A, Seiler A, Westerink RH, Zimmer B, Lein PJ. Reference compounds for alternative test methods to indicate developmental neurotoxicity (DNT) potential of chemicals: example lists and criteria for their selection and use. ALTEX-ALTERNATIVES TO ANIMAL EXPERIMENTATION 2016; 34:49-74. [PMID: 27452664 PMCID: PMC5250586 DOI: 10.14573/altex.1604201] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Accepted: 07/09/2016] [Indexed: 11/23/2022]
Abstract
There is a paucity of information concerning the developmental neurotoxicity (DNT) hazard posed by industrial and environmental chemicals. New testing approaches will most likely be based on batteries of alternative and complementary (non-animal) tests. As DNT is assumed to result from the modulation of fundamental neurodevelopmental processes (such as neuronal differentiation, precursor cell migration or neuronal network formation) by chemicals, the first generation of alternative DNT tests target these processes. The advantage of such types of assays is that they capture toxicants with multiple targets and modes-of-action. Moreover, the processes modelled by the assays can be linked to toxicity endophenotypes, i.e. alterations in neural connectivity that form the basis for neurofunctional deficits in man. The authors of this review convened in a workshop to define criteria for the selection of positive/negative controls, to prepare recommendations on their use, and to initiate the setup of a directory of reference chemicals. For initial technical optimization of tests, a set of >50 endpoint-specific control compounds was identified. For further test development, an additional “test” set of 33 chemicals considered to act directly as bona fide DNT toxicants is proposed, and each chemical is annotated to the extent it fulfills these criteria. A tabular compilation of the original literature used to select the test set chemicals provides information on statistical procedures, and toxic/non-toxic doses (both for pups and dams). Suggestions are provided on how to use the >100 compounds (including negative controls) compiled here to address specificity, adversity and use of alternative test systems.
Collapse
Affiliation(s)
| | | | - Mardas Daneshian
- Center for Alternatives to Animal Testing-Europe (CAAT-Europe), University of Konstanz, Germany
| | - Ellen Fritsche
- Leibniz Research Institute for Environmental Medicine (IUF), Düsseldorf, Germany
| | - Nina Hasiwa
- Center for Alternatives to Animal Testing-Europe (CAAT-Europe), University of Konstanz, Germany
| | - Thomas Hartung
- Center for Alternatives to Animal Testing-Europe (CAAT-Europe), University of Konstanz, Germany.,Center for Alternatives to Animal Testing (CAAT), The Johns Hopkins University, Baltimore, MD, USA
| | - Helena T Hogberg
- Center for Alternatives to Animal Testing (CAAT), The Johns Hopkins University, Baltimore, MD, USA
| | - Marcel Leist
- Center for Alternatives to Animal Testing-Europe (CAAT-Europe), University of Konstanz, Germany.,In vitro Toxicology and Biomedicine, Dept inaugurated by the Doerenkamp-Zbinden Foundation at the University of Konstanz, Konstanz, Germany.,Konstanz Research School Chemical Biology (KoRS-CB), Konstanz University
| | - Abby Li
- Exponent Inc.,San Francisco, USA
| | - William R Mundi
- United States Environmental Protection Agency (USEPA), NHEERL, Research Triangle Park, NC, USA
| | - Stephanie Padilla
- United States Environmental Protection Agency (USEPA), NHEERL, Research Triangle Park, NC, USA
| | - Aldert H Piersma
- National Institute for Public Health and the Environment (RIVM), Bilthoven, The Netherlands.,Institute for Risk Assessment Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - Anna Bal-Price
- European Commission Joint Research Centre, Institute for Health and Consumer Protection, Ispra, Italy
| | - Andrea Seiler
- Federal Institute for Risk Assessment (BfR), Berlin, Germany
| | - Remco H Westerink
- Neurotoxicology Research Group, Institute for Risk Assessment Sciences (IRAS), Utrecht University, Utrecht, The Netherlands
| | | | - Pamela J Lein
- Center for Research on Occupational and Environmental Toxicology, Oregon Health & Science University, Portland, USA.,Department of Molecular Biosciences, University of California, Davis, USA
| |
Collapse
|
63
|
Zhang Q, Zhang D, Liu KY, Liu YH, Sheng J, Jin ZX, Wang SF, Bo QL, Wang JJ, Yin HF. Perinatal sulfamonomethoxine exposure influences physiological and behavioral responses and the brain mTOR pathway in mouse offspring. Hum Exp Toxicol 2016; 36:256-275. [DOI: 10.1177/0960327116646839] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Sulfamonomethoxine (SMM) is widely used in the veterinary field in China. Although some clinical surveys have revealed that sulfonamide antibiotics cause adverse nervous system symptoms, the related mechanisms of maternal SMM exposure on the neurobehavioral development of offspring remain unclear. Here, we investigated the effects of perinatal SMM exposure on the physiological and behavioral responses of pubertal offspring mice and the underlying mechanisms. We randomly allocated pregnant mice into the groups treated with SMM at different doses and the saline-treated groups. Maternal mice were orally administered SMM daily from gestational day 1 to postpartum day 21. On postnatal day (PND) 22, the parameters of growth, endocrine hormones, and brain amino acid composition were assessed, as well as the brain transcript levels of key genes involved in the mammalian target of rapamycin (mTOR) signaling pathway. From PND 50 to 55, a battery of behavioral tests relevant to anxiety and memory were then administered. Analysis of the results indicated that the pups, particularly the pubertal female offspring, showed anxiety-like behavior. Moreover, the pubertal offspring showed cognitive impairments and fat accumulation. Furthermore, the relative mRNA expression of genes involved in the mTOR signaling pathway in females on PND 22 was elevated, whereas the expression of N-methyl-d-aspartate receptor 2B (NR2B) was reduced. Together, the results showed that perinatal SMM exposure perturbs neuroendocrine functions, and further alters gene expression in the mTOR pathway and NR2B gene expression early in life, which may contribute to brain dysfunction in pubertal life.
Collapse
Affiliation(s)
- Q Zhang
- Department of Nutrition and Food Hygiene, School of Public Health, Anhui Medical University, Hefei, People’s Republic of China
| | - D Zhang
- Lujiang County Center for Disease Control and Prevention, Lujiang County, People’s Republic of China
| | - Kai-yong Liu
- Department of Nutrition and Food Hygiene, School of Public Health, Anhui Medical University, Hefei, People’s Republic of China
| | - Ye-hao Liu
- Department of Public Health Inspection and Quarantine Science, School of Public Health, Anhui Medical University, Hefei, People’s Republic of China
| | - J Sheng
- Department of Public Health Inspection and Quarantine Science, School of Public Health, Anhui Medical University, Hefei, People’s Republic of China
| | - Zhong-xiu Jin
- Department of Public Health Inspection and Quarantine Science, School of Public Health, Anhui Medical University, Hefei, People’s Republic of China
| | - Su-fang Wang
- Department of Nutrition and Food Hygiene, School of Public Health, Anhui Medical University, Hefei, People’s Republic of China
| | - Qing-li Bo
- Department of Nutrition and Food Hygiene, School of Public Health, Anhui Medical University, Hefei, People’s Republic of China
| | - Jia-jia Wang
- Department of Nutrition and Food Hygiene, School of Public Health, Anhui Medical University, Hefei, People’s Republic of China
| | - Hui-fang Yin
- Fujian Provincial Key Laboratory of Preventive Veterinary Medicine and Veterinary Biotechnology, College of Life Science, Long Yan University, Longyan, People’s Republic of China
| |
Collapse
|
64
|
Sun Y, Zhan L, Cheng X, Zhang L, Hu J, Gao Z. The Regulation of GluN2A by Endogenous and Exogenous Regulators in the Central Nervous System. Cell Mol Neurobiol 2016; 37:389-403. [PMID: 27255970 DOI: 10.1007/s10571-016-0388-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2016] [Accepted: 05/25/2016] [Indexed: 12/25/2022]
Abstract
The NMDA receptor is the most widely studied ionotropic glutamate receptor, and it is central to many physiological and pathophysiological processes in the central nervous system. GluN2A is one of the two main types of GluN2 NMDA receptor subunits in the forebrain. The proper activity of GluN2A is important to brain function, as the abnormal regulation of GluN2A may induce some neuropsychiatric disorders. This review will examine the regulation of GluN2A by endogenous and exogenous regulators in the central nervous system.
Collapse
Affiliation(s)
- Yongjun Sun
- Department of Pharmacy, Hebei University of Science and Technology, Yuhua East Road 70, Shijiazhuang, 050018, People's Republic of China.,Hebei Research Center of Pharmaceutical and Chemical Engineering, Hebei University of Science and Technology, Shijiazhuang, 050018, People's Republic of China
| | - Liying Zhan
- Department of Pharmacy, Hebei University of Science and Technology, Yuhua East Road 70, Shijiazhuang, 050018, People's Republic of China
| | - Xiaokun Cheng
- North China Pharmaceutical Group New Drug Research and Development Co., Ltd, Shijiazhuang, 050015, People's Republic of China
| | - Linan Zhang
- Department of Pathophysiology, Hebei Medical University, Shijiazhuang, 050017, People's Republic of China
| | - Jie Hu
- School of Nursing, Hebei Medical University, Shijiazhuang, 050017, People's Republic of China
| | - Zibin Gao
- Department of Pharmacy, Hebei University of Science and Technology, Yuhua East Road 70, Shijiazhuang, 050018, People's Republic of China. .,Hebei Research Center of Pharmaceutical and Chemical Engineering, Hebei University of Science and Technology, Shijiazhuang, 050018, People's Republic of China. .,State Key Laboratory Breeding Base-Hebei Province Key Laboratory of Molecular Chemistry for Drug, Shijiazhuang, 050018, People's Republic of China.
| |
Collapse
|
65
|
Prenatal ketamine exposure causes abnormal development of prefrontal cortex in rat. Sci Rep 2016; 6:26865. [PMID: 27226073 PMCID: PMC4881038 DOI: 10.1038/srep26865] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Accepted: 05/09/2016] [Indexed: 01/25/2023] Open
Abstract
Ketamine is commonly used for anesthesia and as a recreational drug. In pregnant users, a potential neurotoxicity in offspring has been noted. Our previous work demonstrated that ketamine exposure of pregnant rats induces affective disorders and cognitive impairments in offspring. As the prefrontal cortex (PFC) is critically involved in emotional and cognitive processes, here we studied whether maternal ketamine exposure influences the development of the PFC in offspring. Pregnant rats on gestational day 14 were treated with ketamine at a sedative dose for 2 hrs, and pups were studied at postnatal day 0 (P0) or P30. We found that maternal ketamine exposure resulted in cell apoptosis and neuronal loss in fetal brain. Upon ketamine exposure in utero, PFC neurons at P30 showed more dendritic branching, while cultured neurons from P0 PFC extended shorter neurites than controls. In addition, maternal ketamine exposure postponed the switch of NR2B/2A expression, and perturbed pre- and postsynaptic protein expression in the PFC. These data suggest that prenatal ketamine exposure impairs neuronal development of the PFC, which may be associated with abnormal behavior in offsprings.
Collapse
|
66
|
Dong C, Rovnaghi CR, Anand KJS. Ketamine exposure during embryogenesis inhibits cellular proliferation in rat fetal cortical neurogenic regions. Acta Anaesthesiol Scand 2016; 60:579-87. [PMID: 26822861 DOI: 10.1111/aas.12689] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2015] [Revised: 11/19/2015] [Accepted: 11/30/2015] [Indexed: 01/01/2023]
Abstract
BACKGROUND Developmental neurotoxicity of ketamine, an N-methyl-D-aspartate receptor antagonist, must be considered due to its widespread uses for sedation/analgesia/anesthesia in pediatric and obstetric settings. Dose-dependent effects of ketamine on cellular proliferation in the neurogenic regions of rat fetal cortex [ventricular zone (VZ) and subventricular zone (SVZ)] were investigated in this in vivo study. METHODS Timed-pregnant Sprague-Dawley rats at embryonic day 17 (E17) were given with different doses of ketamine intraperitoneally (0, 1, 2, 10, 20, 40, and 100 mg/kg). Proliferating cells in the rat fetal brains were labeled by injecting 100 mg/kg of 5-bromo-2'-deoxyuridine (BrdU) intraperitoneally. BrdU-labeled cells were detected by immunostaining methods. The numbers of BrdU-positive cells in VZ and SVZ of rat fetal cortex were employed to quantify proliferation in the developing rat cortex. RESULTS Ketamine dose-dependently reduced the number of BrdU-positive cells in VZ (P < 0.001) and SVZ (P < 0.001) of the rat fetal cortex. SVZ showed greater susceptibility to ketamine-induced reduction of proliferation in rat fetal cortex, occurring even at clinically relevant doses (2 mg/kg). CONCLUSION These data suggest that exposure to ketamine during embryogenesis can dose-dependently inhibit the cellular proliferation in neurogenic regions of the rat fetal cortex.
Collapse
Affiliation(s)
- C. Dong
- Department of Anesthesiology; The Second Affiliated Hospital & Yuying Children's Hospital of Wenzhou Medical University; Wenzhou Zhejiang China
- Department of Pediatrics; University of Tennessee Health Science Center; Memphis TN USA
- Department of Anatomy and Neurobiology; Neuroscience Institute; University of Tennessee Health Science Center; Memphis TN USA
| | - C. R. Rovnaghi
- Department of Pediatrics; University of Tennessee Health Science Center; Memphis TN USA
- Department of Anatomy and Neurobiology; Neuroscience Institute; University of Tennessee Health Science Center; Memphis TN USA
| | - K. J. S. Anand
- Department of Pediatrics; University of Tennessee Health Science Center; Memphis TN USA
- Department of Anatomy and Neurobiology; Neuroscience Institute; University of Tennessee Health Science Center; Memphis TN USA
- Department of Pediatrics; Stanford University School of Medicine; Palo Alto CA USA
| |
Collapse
|
67
|
Disma N, Mondardini MC, Terrando N, Absalom AR, Bilotta F. A systematic review of methodology applied during preclinical anesthetic neurotoxicity studies: important issues and lessons relevant to the design of future clinical research. Paediatr Anaesth 2016; 26:6-36. [PMID: 26530523 DOI: 10.1111/pan.12786] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/27/2015] [Indexed: 12/19/2022]
Abstract
UNLABELLED Preclinical evidence suggests that anesthetic agents harm the developing brain thereby causing long-term neurocognitive impairments. It is not clear if these findings apply to humans, and retrospective epidemiological studies thus far have failed to show definitive evidence that anesthetic agents are harmful to the developing human brain. AIM The aim of this systematic review was to summarize the preclinical studies published over the past decade, with a focus on methodological issues, to facilitate the comparison between different preclinical studies and inform better design of future trials. METHOD The literature search identified 941 articles related to the topic of neurotoxicity. As the primary aim of this systematic review was to compare methodologies applied in animal studies to inform future trials, we excluded a priori all articles focused on putative mechanism of neurotoxicity and the neuroprotective agents. Forty-seven preclinical studies were finally included in this review. RESULTS Methods used in these studies were highly heterogeneous-animals were exposed to anesthetic agents at different developmental stages, in various doses and in various combinations with other drugs, and overall showed diverse toxicity profiles. Physiological monitoring and maintenance of physiological homeostasis was variable and the use of cognitive tests was generally limited to assessment of specific brain areas, with restricted translational relevance to humans. CONCLUSION Comparison between studies is thus complicated by this heterogeneous methodology and the relevance of the combined body of literature to humans remains uncertain. Future preclinical studies should use better standardized methodologies to facilitate transferability of findings from preclinical into clinical science.
Collapse
Affiliation(s)
- Nicola Disma
- Department of Anesthesia, Istituto Giannina Gaslini, Genoa, Italy
| | - Maria C Mondardini
- Department of Pediatric Anesthesia and Intensive Care Unit, University Hospital Policlinico S.Orsola-Malpighi, Bologna, Italy
| | - Niccolò Terrando
- Department of Physiology and Pharmacology, Karolinska Institute, Stockholm, Sweden
| | - Anthony R Absalom
- Department of Anesthesiology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Federico Bilotta
- Section of Neuroanesthesia and Neurocritical Care, Department of Anesthesiology, Critical Care and Pain Medicine, "Sapienza" University of Rome, Rome, Italy
| |
Collapse
|
68
|
Sinner B, Friedrich O, Lindner R, Bundscherer A, Graf BM. Long-term NMDA receptor inhibition affects NMDA receptor expression and alters glutamatergic activity in developing rat hippocampal neurons. Toxicology 2015; 333:147-155. [DOI: 10.1016/j.tox.2015.04.017] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2015] [Revised: 04/10/2015] [Accepted: 04/28/2015] [Indexed: 10/23/2022]
|
69
|
Pten Inhibitor-bpV Ameliorates Early Postnatal Propofol Exposure-Induced Memory Deficit and Impairment of Hippocampal LTP. Neurochem Res 2015; 40:1593-9. [PMID: 26081019 DOI: 10.1007/s11064-015-1633-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2015] [Revised: 05/27/2015] [Accepted: 06/03/2015] [Indexed: 10/23/2022]
Abstract
Early postnatal propofol administration has potential detrimental effects on hippocampal synaptic development and memory. Therapeutic method is still lack due to unknown mechanisms. In this study, a 7-day propofol protocol was applied to model anesthesia in neonatal mice. Phosphatase and tensin homolog deleted on chromosome ten (Pten) inhibitor bisperoxovanadium (bpV) was pre-applied before propofol to study its potential protection. After propofol application, Pten level increased while phospho-AKT (p-AKT) (Ser473) decreased in dorsal hippocampus. Interestingly, i.p. injection of Pten inhibitor reversed the decrease of p-AKT. Two months after administration, basal synaptic transmission, hippocampal long-term potentiation (LTP) and long-term memory were reduced in propofol-administrated mice. By contrast, i.p. injection of Pten inhibitor at a dose of 0.2 mg/kg/day before propofol reversed the detrimental effects due to propofol application. Consistently, bpV injection also reversed propofol application-induced decrease of synaptic plasticity-related proteins, including p-CamKIIα, p-PKA and postsynaptic density protein 95. Taken together, our results demonstrate that bpV injection could reverse early propofol exposure-induced decrease of memory and hippocampal LTP. bpV might be a potential therapeutic for memory impairment after early propofol postnatal application.
Collapse
|
70
|
Neonatal exposure to sevoflurane may not cause learning and memory deficits and behavioral abnormality in the childhood of Cynomolgus monkeys. Sci Rep 2015; 5:11145. [PMID: 26046459 PMCID: PMC4457164 DOI: 10.1038/srep11145] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2015] [Accepted: 05/14/2015] [Indexed: 01/08/2023] Open
Abstract
Results of animal studies have raised a significant concern that commonly used general anesthetics may induce neurotoxicity in children. It may be difficult to resolve this concern with human studies because randomizing children only for testing anesthetic toxicity may not be feasible. We randomized 6-day old male Cynomolgus monkeys to receive or not to receive sevoflurane anesthesia at surgical plane for 5 h. Sevoflurane is the most commonly used general anesthetic in children in the U.S.A. Here, we showed that sevoflurane anesthesia did not affect the behavior evaluated by holding cage method when the monkeys were 3 and 7 months old. However, there was an age-dependent decrease in the frequency of stress events and environmental exploration behavior during the test. Sevoflurane also did not affect the learning and memory of the monkeys when they were assessed from the age of 7 months. Finally, sevoflurane did not affect the expression of multiple neuron-specific proteins in the hippocampus and cerebral cortex of 10-month old monkeys after all behavioral and cognitive tests were completed. These results suggest that exposure of neonatal monkey to sevoflurane may not affect cognition, behavior and neuronal structures in childhood, indicating the safety of sevoflurane anesthesia in children.
Collapse
|