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Mueller LE, Issa PP, Hussein MH, Elshazli RM, Haidari M, Errami Y, Shama M, Fawzy MS, Kandil E, Toraih E. Clinical outcomes and tumor microenvironment response to radiofrequency ablation therapy: a systematic review and meta-analysis. Gland Surg 2024; 13:4-18. [PMID: 38323236 PMCID: PMC10839696 DOI: 10.21037/gs-22-555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 06/15/2023] [Indexed: 02/08/2024]
Abstract
Background Radiofrequency ablation (RFA) utilizes minimally invasive high-energy current to precisely ablate tumor cells. It has been utilized in many cancer types including thyroid, lung, and liver cancer. It has been shown to provide adequate ablative margins with minimal complications; however, incomplete RFA may lead to recurrence of tumor. The underlying cellular mechanism and behavior of ablated cancer tissue is poorly understood. Methods A systematic review was performed, searching EMBASE, Web of Science, PubMed, and Scopus for studies published up to March 2022 and reported following PRISMA guidelines. Collection was performed by two groups of investigators to avoid risk of bias. The Cochrane Collaboration's tool was used for assessing risk of bias. We identified human, in vivo, and in vitro research studies utilizing RFA for tumor tissues. We required that the studies included at least one of the following: complications, recurrence, or survival, and took interest to studies identifying cellular signaling pathway patterns after RFA. Descriptive statistical analysis was performed in 'R' software including mean and confidence interval. Results The most frequent cancers studied were liver and lung cancers accounting for 57.4% (N=995) and 15.4% (N=267), followed by esophageal (N=190) and breast cancer (N=134). The most common reported complications were bleeding (19%) and post-operative pain (14%). In our literature search, four independent studies showed upregulation and activation of the VEGF pathway following RFA, four showed upregulation and activation of the AKT pathway following RFA, three studies demonstrated involvement of matrix metalloproteinases, and four showed upregulation of c-Met protein following RFA. Conclusions In our review and meta-analysis, we identify several proteins and pathways of interest of which are important in wound healing, angiogenesis, and cellular growth and survival. These proteins and pathways of interest may implicate areas of research towards RFA resistance and cancer recurrence.
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Affiliation(s)
| | - Peter P. Issa
- School of Medicine, Louisiana State University Health Sciences Center, New Orleans, LA, USA
| | | | - Rami M. Elshazli
- Department of Biochemistry and Molecular Genetics, Faculty of Physical Therapy, Horus University-Egypt, New Damietta, Egypt
| | - Muhib Haidari
- School of Medicine, Tulane University, New Orleans, Louisiana, USA
| | - Youssef Errami
- Department of Surgery, School of Medicine, Tulane University, New Orleans, LA, USA
| | - Mohamed Shama
- Department of Surgery, School of Medicine, Tulane University, New Orleans, LA, USA
| | - Manal S. Fawzy
- Department of Medical Biochemistry and Molecular Biology, Faculty of Medicine, Suez Canal University, Ismailia, Egypt
- Department of Biochemistry, Faculty of Medicine, Northern Border University, Arar, Saudi Arabia
| | - Emad Kandil
- Department of Surgery, School of Medicine, Tulane University, New Orleans, LA, USA
| | - Eman Toraih
- Department of Surgery, School of Medicine, Tulane University, New Orleans, LA, USA
- Genetics Unit, Department of Histology and Cell Biology, Faculty of Medicine, Suez Canal University, Ismailia, Egypt
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Takahashi YK, Stalnaker TA, Mueller LE, Harootonian SK, Langdon AJ, Schoenbaum G. Dopaminergic prediction errors in the ventral tegmental area reflect a multithreaded predictive model. Nat Neurosci 2023; 26:830-839. [PMID: 37081296 PMCID: PMC10646487 DOI: 10.1038/s41593-023-01310-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Accepted: 03/16/2023] [Indexed: 04/22/2023]
Abstract
Dopamine neuron activity is tied to the prediction error in temporal difference reinforcement learning models. These models make significant simplifying assumptions, particularly with regard to the structure of the predictions fed into the dopamine neurons, which consist of a single chain of timepoint states. Although this predictive structure can explain error signals observed in many studies, it cannot cope with settings where subjects might infer multiple independent events and outcomes. In the present study, we recorded dopamine neurons in the ventral tegmental area in such a setting to test the validity of the single-stream assumption. Rats were trained in an odor-based choice task, in which the timing and identity of one of several rewards delivered in each trial changed across trial blocks. This design revealed an error signaling pattern that requires the dopamine neurons to access and update multiple independent predictive streams reflecting the subject's belief about timing and potentially unique identities of expected rewards.
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Affiliation(s)
- Yuji K Takahashi
- Intramural Research Program, National Institute on Drug Abuse, Baltimore, MD, USA.
| | - Thomas A Stalnaker
- Intramural Research Program, National Institute on Drug Abuse, Baltimore, MD, USA
| | - Lauren E Mueller
- Intramural Research Program, National Institute on Drug Abuse, Baltimore, MD, USA
| | | | - Angela J Langdon
- Intramural Research Program, National Institute of Mental Health, Bethesda, MD, USA.
| | - Geoffrey Schoenbaum
- Intramural Research Program, National Institute on Drug Abuse, Baltimore, MD, USA.
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3
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Newton EE, Mueller LE, Treadwell SM, Morris CA, Machado HL. Molecular Targets of Triple-Negative Breast Cancer: Where Do We Stand? Cancers (Basel) 2022; 14:482. [PMID: 35158750 PMCID: PMC8833442 DOI: 10.3390/cancers14030482] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Revised: 01/11/2022] [Accepted: 01/14/2022] [Indexed: 11/16/2022] Open
Abstract
Triple-negative breast cancer (TNBC) is a highly aggressive form of breast cancer. Due to its heterogeneity and lack of hormone receptor expression, this subtype is more likely to metastasize and resist treatment attempts than are other forms of breast cancer. Due to the absence of targetable receptors, chemotherapy and breast conserving surgery have been the predominant treatment options for patients. However, resistance to chemotherapy and local recurrence of the tumors is frequent. Emerging immunotherapies have begun to change treatment plans for patients diagnosed with TNBC. In this review, we discuss the various immune pathways identified in TNBC and the role they play as targets for new potential treatment choices. Various therapeutic options that inhibit key pathways in cellular growth cycles, DNA repair mechanisms, epithelial mesenchymal transition, and immunosuppression have been shown to improve survival in patients with this disease. With promising results thus far, continued studies of immunotherapy and neoadjuvant therapy options for TNBC are likely to alter the treatment course for these diagnoses in the future.
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Affiliation(s)
- Emma E. Newton
- Department of Biochemistry and Molecular Biology, Tulane University School of Medicine, New Orleans, LA 70112, USA; (E.E.N.); (L.E.M.); (S.M.T.)
| | - Lauren E. Mueller
- Department of Biochemistry and Molecular Biology, Tulane University School of Medicine, New Orleans, LA 70112, USA; (E.E.N.); (L.E.M.); (S.M.T.)
| | - Scout M. Treadwell
- Department of Biochemistry and Molecular Biology, Tulane University School of Medicine, New Orleans, LA 70112, USA; (E.E.N.); (L.E.M.); (S.M.T.)
| | - Cindy A. Morris
- Department of Microbiology and Immunology, Tulane University School of Medicine, New Orleans, LA 70112, USA;
| | - Heather L. Machado
- Department of Biochemistry and Molecular Biology, Tulane University School of Medicine, New Orleans, LA 70112, USA; (E.E.N.); (L.E.M.); (S.M.T.)
- Tulane Cancer Center, Louisiana Cancer Research Consortium, New Orleans, LA 70112, USA
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4
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Wikenheiser AM, Gardner MPH, Mueller LE, Schoenbaum G. Spatial Representations in Rat Orbitofrontal Cortex. J Neurosci 2021; 41:6933-6945. [PMID: 34210776 PMCID: PMC8360685 DOI: 10.1523/jneurosci.0830-21.2021] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Revised: 06/09/2021] [Accepted: 06/20/2021] [Indexed: 01/03/2023] Open
Abstract
The orbitofrontal cortex (OFC) and hippocampus share striking cognitive and functional similarities. As a result, both structures have been proposed to encode "cognitive maps" that provide useful scaffolds for planning complex behaviors. However, while this function has been exemplified by spatial coding in neurons of hippocampal regions-particularly place and grid cells-spatial representations in the OFC have been investigated far less. Here we sought to address this by recording OFC neurons from male rats engaged in an open-field foraging task like that originally developed to characterize place fields in rodent hippocampal neurons. Single-unit activity was recorded as rats searched for food pellets scattered randomly throughout a large enclosure. In some sessions, particular flavors of food occurred more frequently in particular parts of the enclosure; in others, only a single flavor was used. OFC neurons showed spatially localized firing fields in both conditions, and representations changed between flavored and unflavored foraging periods in a manner reminiscent of remapping in the hippocampus. Compared with hippocampal recordings taken under similar behavioral conditions, OFC spatial representations were less temporally reliable, and there was no significant evidence of grid tuning in OFC neurons. These data confirm that OFC neurons show spatial firing fields in a large, two-dimensional environment in a manner similar to hippocampus. Consistent with the focus of the OFC on biological meaning and goals, spatial coding was weaker than in hippocampus and influenced by outcome identity.SIGNIFICANCE STATEMENT The orbitofrontal cortex (OFC) and hippocampus have both been proposed to encode "cognitive maps" that provide useful scaffolds for planning complex behaviors. This function is exemplified by place and grid cells identified in hippocampus, the activity of which maps spatial environments. The current study directly demonstrates very similar, though not identical, spatial representatives in OFC neurons, confirming that OFC-like hippocampus-can represent a spatial map under the appropriate experimental conditions.
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Affiliation(s)
- Andrew M Wikenheiser
- Department of Psychology, University of California, Los Angeles, Los Angeles, California 90095
- Brain Research Institute, University of California, Los Angeles, Los Angeles, California 90095
| | - Matthew P H Gardner
- Behavioral Neurophysiology Research Section, Cellular Neurobiology Research Branch, Intramural Research Program, National Institute on Drug Abuse, Baltimore, Maryland 21224
| | - Lauren E Mueller
- Behavioral Neurophysiology Research Section, Cellular Neurobiology Research Branch, Intramural Research Program, National Institute on Drug Abuse, Baltimore, Maryland 21224
| | - Geoffrey Schoenbaum
- Behavioral Neurophysiology Research Section, Cellular Neurobiology Research Branch, Intramural Research Program, National Institute on Drug Abuse, Baltimore, Maryland 21224
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Sharpe MJ, Batchelor HM, Mueller LE, Gardner MPH, Schoenbaum G. Past experience shapes the neural circuits recruited for future learning. Nat Neurosci 2021; 24:391-400. [PMID: 33589832 DOI: 10.1038/s41593-020-00791-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Accepted: 12/23/2020] [Indexed: 12/12/2022]
Abstract
Experimental research controls for past experience, yet prior experience influences how we learn. Here, we tested whether we could recruit a neural population that usually encodes rewards to encode aversive events. Specifically, we found that GABAergic neurons in the lateral hypothalamus (LH) were not involved in learning about fear in naïve rats. However, if these rats had prior experience with rewards, LH GABAergic neurons became important for learning about fear. Interestingly, inhibition of these neurons paradoxically enhanced learning about neutral sensory information, regardless of prior experience, suggesting that LH GABAergic neurons normally oppose learning about irrelevant information. These experiments suggest that prior experience shapes the neural circuits recruited for future learning in a highly specific manner, reopening the neural boundaries we have drawn for learning of particular types of information from work in naïve subjects.
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Affiliation(s)
- Melissa J Sharpe
- Department of Psychology, University of California, Los Angeles, Los Angeles, CA, USA.
| | - Hannah M Batchelor
- National Institute on Drug Abuse, Intramural Program, Baltimore, MD, USA
| | - Lauren E Mueller
- National Institute on Drug Abuse, Intramural Program, Baltimore, MD, USA
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Sharpe MJ, Batchelor HM, Mueller LE, Yun Chang C, Maes EJP, Niv Y, Schoenbaum G. Dopamine transients do not act as model-free prediction errors during associative learning. Nat Commun 2020; 11:106. [PMID: 31913274 PMCID: PMC6949299 DOI: 10.1038/s41467-019-13953-1] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2019] [Accepted: 12/05/2019] [Indexed: 01/07/2023] Open
Abstract
Dopamine neurons are proposed to signal the reward prediction error in model-free reinforcement learning algorithms. This term represents the unpredicted or 'excess' value of the rewarding event, value that is then added to the intrinsic value of any antecedent cues, contexts or events. To support this proposal, proponents cite evidence that artificially-induced dopamine transients cause lasting changes in behavior. Yet these studies do not generally assess learning under conditions where an endogenous prediction error would occur. Here, to address this, we conducted three experiments where we optogenetically activated dopamine neurons while rats were learning associative relationships, both with and without reward. In each experiment, the antecedent cues failed to acquire value and instead entered into associations with the later events, whether valueless cues or valued rewards. These results show that in learning situations appropriate for the appearance of a prediction error, dopamine transients support associative, rather than model-free, learning.
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Affiliation(s)
- Melissa J Sharpe
- National Institute on Drug Abuse, Intramural Research Program, Baltimore, MD, 21224, USA
- Princeton Neuroscience Institute, Princeton University, Princeton, NJ, 08544, USA
- School of Psychology, UNSW, Australia
- Department of Psychology, University of California, Los Angeles, CA, 90095-1563, USA
| | - Hannah M Batchelor
- National Institute on Drug Abuse, Intramural Research Program, Baltimore, MD, 21224, USA
| | - Lauren E Mueller
- National Institute on Drug Abuse, Intramural Research Program, Baltimore, MD, 21224, USA
| | - Chun Yun Chang
- National Institute on Drug Abuse, Intramural Research Program, Baltimore, MD, 21224, USA
| | - Etienne J P Maes
- National Institute on Drug Abuse, Intramural Research Program, Baltimore, MD, 21224, USA
| | - Yael Niv
- Princeton Neuroscience Institute, Princeton University, Princeton, NJ, 08544, USA
- Psychology Department, Princeton University, Princeton, NJ, 08544, USA
| | - Geoffrey Schoenbaum
- National Institute on Drug Abuse, Intramural Research Program, Baltimore, MD, 21224, USA.
- Departments of Anatomy & Neurobiology and Psychiatry, University of Maryland School of Medicine, Baltimore, MD, 21201, USA.
- Solomon H. Snyder Department of Neuroscience, The Johns Hopkins University, Baltimore, MD, 21287, USA.
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7
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Martin JA, Werner CT, Mitra S, Zhong P, Wang ZJ, Gobira PH, Stewart AF, Zhang J, Erias K, Siemian JN, Hagarty D, Mueller LE, Neve RL, Li JX, Chandra R, Dietz KC, Lobo MK, Gancarz AM, Yan Z, Dietz DM. A novel role for the actin-binding protein drebrin in regulating opiate addiction. Nat Commun 2019; 10:4140. [PMID: 31515501 PMCID: PMC6742638 DOI: 10.1038/s41467-019-12122-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Accepted: 08/22/2019] [Indexed: 12/14/2022] Open
Abstract
Persistent transcriptional and morphological events in the nucleus accumbens (NAc) and other brain reward regions contribute to the long-lasting behavioral adaptations that characterize drug addiction. Opiate exposure reduces the density of dendritic spines on medium spiny neurons of the NAc; however, the underlying transcriptional and cellular events mediating this remain unknown. We show that heroin self-administration negatively regulates the actin-binding protein drebrin in the NAc. Using virus-mediated gene transfer, we show that drebrin overexpression in the NAc is sufficient to decrease drug seeking and increase dendritic spine density, whereas drebrin knockdown potentiates these effects. We demonstrate that drebrin is transcriptionally repressed by the histone modifier HDAC2, which is relieved by pharmacological inhibition of histone deacetylases. Importantly, we demonstrate that heroin-induced adaptations occur only in the D1+ subset of medium spiny neurons. These findings establish an essential role for drebrin, and upstream transcriptional regulator HDAC2, in opiate-induced plasticity in the NAc. The underlying transcriptional and cellular events mediating the reduction of dendritic spines on medium spiny neurons of the nucleus accumbens (NAc) remains unknown. Here, authors demonstrate that heroin self-administration negatively regulates the actin-binding protein drebrin in the NAc, which is shown to be transcriptionally repressed by the histone modifier HDAC2, and that overexpression of drebrin is sufficient to decrease drug seeking and increase dendritic spine density
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Affiliation(s)
- Jennifer A Martin
- Department of Pharmacology and Toxicology, Program in Neuroscience, Research Institute on Addictions, The State University of New York at Buffalo, Buffalo, NY, 14214, USA
| | - Craig T Werner
- Department of Pharmacology and Toxicology, Program in Neuroscience, Research Institute on Addictions, The State University of New York at Buffalo, Buffalo, NY, 14214, USA
| | - Swarup Mitra
- Department of Pharmacology and Toxicology, Program in Neuroscience, Research Institute on Addictions, The State University of New York at Buffalo, Buffalo, NY, 14214, USA
| | - Ping Zhong
- Department of Physiology and Biophysics, The State University of New York at Buffalo, Buffalo, NY, 14214, USA
| | - Zi-Jun Wang
- Department of Pharmacology and Toxicology, Program in Neuroscience, Research Institute on Addictions, The State University of New York at Buffalo, Buffalo, NY, 14214, USA
| | - Pedro H Gobira
- Department of Pharmacology and Toxicology, Program in Neuroscience, Research Institute on Addictions, The State University of New York at Buffalo, Buffalo, NY, 14214, USA.,Department of Physics and Chemistry, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Andrew F Stewart
- Department of Pharmacology and Toxicology, Program in Neuroscience, Research Institute on Addictions, The State University of New York at Buffalo, Buffalo, NY, 14214, USA
| | - Jay Zhang
- Department of Pharmacology and Toxicology, Program in Neuroscience, Research Institute on Addictions, The State University of New York at Buffalo, Buffalo, NY, 14214, USA
| | - Kyra Erias
- Department of Pharmacology and Toxicology, Program in Neuroscience, Research Institute on Addictions, The State University of New York at Buffalo, Buffalo, NY, 14214, USA
| | - Justin N Siemian
- Department of Pharmacology and Toxicology, Program in Neuroscience, Research Institute on Addictions, The State University of New York at Buffalo, Buffalo, NY, 14214, USA
| | - Devin Hagarty
- Department of Psychology, California State University Bakersfield, Bakersfield, CA, 93311, USA
| | - Lauren E Mueller
- Department of Pharmacology and Toxicology, Program in Neuroscience, Research Institute on Addictions, The State University of New York at Buffalo, Buffalo, NY, 14214, USA
| | - Rachael L Neve
- Gene Delivery Technology Core, Massachusetts General Hospital, Cambridge, MA, 02139, USA
| | - Jun-Xu Li
- Department of Pharmacology and Toxicology, Program in Neuroscience, Research Institute on Addictions, The State University of New York at Buffalo, Buffalo, NY, 14214, USA
| | - Ramesh Chandra
- Department of Anatomy and Neurobiology, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Karen C Dietz
- Department of Pharmacology and Toxicology, Program in Neuroscience, Research Institute on Addictions, The State University of New York at Buffalo, Buffalo, NY, 14214, USA
| | - Mary Kay Lobo
- Department of Anatomy and Neurobiology, University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Amy M Gancarz
- Department of Psychology, California State University Bakersfield, Bakersfield, CA, 93311, USA
| | - Zhen Yan
- Department of Physiology and Biophysics, The State University of New York at Buffalo, Buffalo, NY, 14214, USA
| | - David M Dietz
- Department of Pharmacology and Toxicology, Program in Neuroscience, Research Institute on Addictions, The State University of New York at Buffalo, Buffalo, NY, 14214, USA. .,Department of Psychology, The State University of New York at Buffalo, Buffalo, NY, 14214, USA.
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Sharpe MJ, Chang CY, Liu MA, Batchelor HM, Mueller LE, Jones JL, Niv Y, Schoenbaum G. Author Correction: Dopamine transients are sufficient and necessary for acquisition of model-based associations. Nat Neurosci 2018; 21:1493. [PMID: 30018354 DOI: 10.1038/s41593-018-0202-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
In the version of this article initially published, the laser activation at the start of cue X in experiment 1 was described in the first paragraph of the Results and in the third paragraph of the Experiment 1 section of the Methods as lasting 2 s; in fact, it lasted only 1 s. The error has been corrected in the HTML and PDF versions of the article.
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Affiliation(s)
- Melissa J Sharpe
- NIDA Intramural Research Program, Baltimore, Maryland, USA. .,Department of Psychology and Neuroscience Institute, Princeton University, Princeton, New Jersey, USA.
| | - Chun Yun Chang
- NIDA Intramural Research Program, Baltimore, Maryland, USA
| | - Melissa A Liu
- NIDA Intramural Research Program, Baltimore, Maryland, USA
| | | | | | - Joshua L Jones
- NIDA Intramural Research Program, Baltimore, Maryland, USA
| | - Yael Niv
- Department of Psychology and Neuroscience Institute, Princeton University, Princeton, New Jersey, USA
| | - Geoffrey Schoenbaum
- NIDA Intramural Research Program, Baltimore, Maryland, USA. .,Departments of Anatomy and of Neurobiology and Psychiatry, University of Maryland School of Medicine, Baltimore, Maryland, USA. .,Solomon H. Snyder Department of Neuroscience, The Johns Hopkins University, Baltimore, Maryland, USA.
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9
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Sharpe MJ, Chang CY, Liu MA, Batchelor HM, Mueller LE, Jones JL, Niv Y, Schoenbaum G. Dopamine transients are sufficient and necessary for acquisition of model-based associations. Nat Neurosci 2017; 20:735-742. [PMID: 28368385 PMCID: PMC5413864 DOI: 10.1038/nn.4538] [Citation(s) in RCA: 144] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2016] [Accepted: 02/28/2017] [Indexed: 12/12/2022]
Abstract
Associative learning is driven by prediction errors. Dopamine transients correlate with these errors, which current interpretations limit to endowing cues with a scalar quantity reflecting the value of future rewards. We tested whether dopamine might act more broadly to support learning of an associative model of the environment. Using sensory preconditioning, we show that prediction errors underlying stimulus-stimulus learning can be blocked behaviorally and reinstated by optogenetically activating dopamine neurons. We further show that suppressing the firing of these neurons across the transition prevents normal stimulus-stimulus learning. These results establish that the acquisition of model-based information about transitions between nonrewarding events is also driven by prediction errors and that, contrary to existing canon, dopamine transients are both sufficient and necessary to support this type of learning. Our findings open new possibilities for how these biological signals might support associative learning in the mammalian brain in these and other contexts.
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Affiliation(s)
- Melissa J Sharpe
- NIDA Intramural Research Program, Baltimore, Maryland, USA
- Department of Psychology and Neuroscience Institute, Princeton University, Princeton, New Jersey, USA
| | - Chun Yun Chang
- NIDA Intramural Research Program, Baltimore, Maryland, USA
| | - Melissa A Liu
- NIDA Intramural Research Program, Baltimore, Maryland, USA
| | | | | | - Joshua L Jones
- NIDA Intramural Research Program, Baltimore, Maryland, USA
| | - Yael Niv
- Department of Psychology and Neuroscience Institute, Princeton University, Princeton, New Jersey, USA
| | - Geoffrey Schoenbaum
- NIDA Intramural Research Program, Baltimore, Maryland, USA
- Departments of Anatomy and of Neurobiology and Psychiatry, University of Maryland School of Medicine, Baltimore, Maryland, USA
- Solomon H. Snyder Department of Neuroscience, The Johns Hopkins University, Baltimore, Maryland, USA
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10
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Bartsch SM, McKinnell JA, Mueller LE, Miller LG, Gohil SK, Huang SS, Lee BY. Potential economic burden of carbapenem-resistant Enterobacteriaceae (CRE) in the United States. Clin Microbiol Infect 2017; 23:48.e9-48.e16. [PMID: 27642178 PMCID: PMC5547745 DOI: 10.1016/j.cmi.2016.09.003] [Citation(s) in RCA: 128] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Revised: 09/09/2016] [Accepted: 09/10/2016] [Indexed: 12/24/2022]
Abstract
OBJECTIVES The Centers for Disease Control and Prevention considers carbapenem-resistant Enterobacteriaceae (CRE) an urgent public health threat; however, its economic burden is unknown. METHODS We developed a CRE clinical and economics outcomes model to determine the cost of CRE infection from the hospital, third-party payer, and societal, perspectives and to evaluate the health and economic burden of CRE to the USA. RESULTS Depending on the infection type, the median cost of a single CRE infection can range from $22 484 to $66 031 for hospitals, $10 440 to $31 621 for third-party payers, and $37 778 to $83 512 for society. An infection incidence of 2.93 per 100 000 population in the USA (9418 infections) would cost hospitals $275 million (95% CR $217-334 million), third-party payers $147 million (95% CR $129-172 million), and society $553 million (95% CR $303-1593 million) with a 25% attributable mortality, and would result in the loss of 8841 (95% CR 5805-12 420) quality-adjusted life years. An incidence of 15 per 100 000 (48 213 infections) would cost hospitals $1.4 billion (95% CR $1.1-1.7 billion), third-party payers $0.8 billion (95% CR $0.6-0.8 billion), and society $2.8 billion (95% CR $1.6-8.2 billion), and result in the loss of 45 261 quality-adjusted life years. CONCLUSIONS The cost of CRE is higher than the annual cost of many chronic diseases and of many acute diseases. Costs rise proportionally with the incidence of CRE, increasing by 2.0 times, 3.4 times, and 5.1 times for incidence rates of 6, 10, and 15 per 100 000 persons.
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Affiliation(s)
- S M Bartsch
- Public Health Computational and Operations Research (PHICOR), Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - J A McKinnell
- Infectious Disease Clinical Outcomes Research Unit (ID-CORE), Los Angeles Biomedical Research Institute, Harbor-UCLA Medical Center, Torrance, CA, USA; Torrance Memorial Medical Center, Torrance, CA, USA
| | - L E Mueller
- Public Health Computational and Operations Research (PHICOR), Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - L G Miller
- Infectious Disease Clinical Outcomes Research Unit (ID-CORE), Los Angeles Biomedical Research Institute, Harbor-UCLA Medical Center, Torrance, CA, USA
| | - S K Gohil
- Division of Infectious Diseases and Health Policy Research Institute, University of California Irvine Health School of Medicine, Irvine, CA, USA
| | - S S Huang
- Division of Infectious Diseases and Health Policy Research Institute, University of California Irvine Health School of Medicine, Irvine, CA, USA
| | - B Y Lee
- Public Health Computational and Operations Research (PHICOR), Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.
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Wang ZJ, Martin JA, Mueller LE, Caccamise A, Werner CT, Neve RL, Gancarz AM, Li JX, Dietz DM. BRG1 in the Nucleus Accumbens Regulates Cocaine-Seeking Behavior. Biol Psychiatry 2016; 80:652-660. [PMID: 27422367 PMCID: PMC5050080 DOI: 10.1016/j.biopsych.2016.04.020] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Revised: 04/28/2016] [Accepted: 04/28/2016] [Indexed: 12/24/2022]
Abstract
BACKGROUND Drug addiction is defined as a chronic disease characterized by compulsive drug seeking and episodes of relapse despite prolonged periods of drug abstinence. Neurobiological adaptations, including transcriptional and epigenetic alterations in the nucleus accumbens, are thought to contribute to this life-long disease state. We previously demonstrated that the transcription factor SMAD3 is increased after 7 days of withdrawal from cocaine self-administration. However, it is still unknown which additional factors participate in the process of chromatin remodeling and facilitate the binding of SMAD3 to promoter regions of target genes. Here, we examined the possible interaction of BRG1-also known as SMARCA4, an adenosine triphosphatase-containing chromatin remodeler-and SMAD3 in response to cocaine exposure. METHODS The expression of BRG1, as well as its binding to SMAD3 and target gene promoter regions, was evaluated in the nucleus accumbens and dorsal striatum of rats using western blotting, co-immunoprecipitation, and chromatin immunoprecipitation following abstinence from cocaine self-administration. Rats were assessed for cocaine-seeking behaviors after either intra-accumbal injections of the BRG1 inhibitor PFI3 or viral-mediated overexpression of BRG1. RESULTS After withdrawal from cocaine self-administration, BRG1 expression and complex formation with SMAD3 are increased in the nucleus accumbens, resulting in increased binding of BRG1 to the promoter regions of Ctnnb1, Mef2d, and Dbn1. Intra-accumbal infusion of PFI3 attenuated, whereas viral overexpression of Brg1 enhanced, cocaine-reinstatement behavior. CONCLUSIONS BRG1 is a key mediator of the SMAD3-dependent regulation of cellular and behavioral plasticity that mediates cocaine seeking after a period of withdrawal.
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Affiliation(s)
- Zi-Jun Wang
- Department of Pharmacology and Toxicology, State University of New York at Buffalo, Buffalo, New York; Research Institute on Addictions, Program in Neuroscience, Department of Psychology, State University of New York at Buffalo, Buffalo, New York
| | - Jennifer A Martin
- Department of Pharmacology and Toxicology, State University of New York at Buffalo, Buffalo, New York; Research Institute on Addictions, Program in Neuroscience, Department of Psychology, State University of New York at Buffalo, Buffalo, New York
| | - Lauren E Mueller
- Department of Pharmacology and Toxicology, State University of New York at Buffalo, Buffalo, New York; Research Institute on Addictions, Program in Neuroscience, Department of Psychology, State University of New York at Buffalo, Buffalo, New York
| | - Aaron Caccamise
- Department of Pharmacology and Toxicology, State University of New York at Buffalo, Buffalo, New York; Research Institute on Addictions, Program in Neuroscience, Department of Psychology, State University of New York at Buffalo, Buffalo, New York
| | - Craig T Werner
- Department of Pharmacology and Toxicology, State University of New York at Buffalo, Buffalo, New York; Research Institute on Addictions, Program in Neuroscience, Department of Psychology, State University of New York at Buffalo, Buffalo, New York
| | - Rachael L Neve
- Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, Massachusetts
| | - Amy M Gancarz
- Department of Pharmacology and Toxicology, State University of New York at Buffalo, Buffalo, New York; Research Institute on Addictions, Program in Neuroscience, Department of Psychology, State University of New York at Buffalo, Buffalo, New York
| | - Jun-Xu Li
- Department of Pharmacology and Toxicology, State University of New York at Buffalo, Buffalo, New York
| | - David M Dietz
- Department of Pharmacology and Toxicology, State University of New York at Buffalo, Buffalo, New York; Research Institute on Addictions, Program in Neuroscience, Department of Psychology, State University of New York at Buffalo, Buffalo, New York; Department of Psychology, California State University Bakersfield, Bakersfield, California.
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Gancarz A, Jouroukhin Y, Saito A, Shevelkin A, Mueller LE, Kamiya A, Dietz DM, Pletnikov MV. DISC1 signaling in cocaine addiction: Towards molecular mechanisms of co-morbidity. Neurosci Res 2015; 105:70-4. [PMID: 26385055 DOI: 10.1016/j.neures.2015.09.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Revised: 09/03/2015] [Accepted: 09/07/2015] [Indexed: 11/30/2022]
Abstract
Substance abuse and other psychiatric diseases may share molecular pathology. In order to test this hypothesis, we examined the role of Disrupted In Schizophrenia 1 (DISC1), a psychiatric risk factor, in cocaine self-administration (SA). Cocaine SA significantly increased expression of DISC1 in the nucleus accumbens (NAc); while knockdown of DISC1 in NAc significantly increased cocaine SA and decreased phosphorylation of GSK-3β at Ser9 compared to scrambled shRNA. Our study provides the first mechanistic evidence of a critical role of DISC1 in drug-induced behavioral neuroadaptations and sheds more light at the shared molecular pathology of drug abuse and other major psychiatric disorders.
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Affiliation(s)
- Amy Gancarz
- The State University of New York at Buffalo, Buffalo, NY, USA
| | - Yan Jouroukhin
- Department of Psychiatry, Johns Hopkins University School of Medicine, Baltimore, USA
| | - Atsushi Saito
- Department of Psychiatry, Johns Hopkins University School of Medicine, Baltimore, USA
| | - Alexey Shevelkin
- Department of Psychiatry, Johns Hopkins University School of Medicine, Baltimore, USA
| | | | - Atsushi Kamiya
- Department of Psychiatry, Johns Hopkins University School of Medicine, Baltimore, USA
| | - David M Dietz
- The State University of New York at Buffalo, Buffalo, NY, USA.
| | - Mikhail V Pletnikov
- Department of Psychiatry, Johns Hopkins University School of Medicine, Baltimore, USA; Molecular and Comparative Pathobiology, Johns Hopkins University School of Medicine, Baltimore, USA; Solomon H. Snyder Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, USA; Department of Molecular Microbiology and Immunology, Johns Hopkins Bloomberg School of Public Health, Baltimore, USA.
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13
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Gancarz AM, Wang ZJ, Schroeder GL, Damez-Werno D, Braunscheidel K, Mueller LE, Humby MS, Caccamise A, Martin JA, Dietz KC, Neve RL, Dietz DM. Activin receptor signaling regulates cocaine-primed behavioral and morphological plasticity. Nat Neurosci 2015; 18:959-61. [PMID: 26030849 PMCID: PMC4599345 DOI: 10.1038/nn.4036] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2015] [Accepted: 04/29/2015] [Indexed: 02/06/2023]
Abstract
Activin receptor signaling, including the transcription factor Smad3, was upregulated in the rat nucleus accumbens (NAc) shell following withdrawal from cocaine. Direct genetic and pharmacological manipulations of this pathway bidirectionally altered cocaine seeking while governing morphological plasticity in NAc neurons. Thus, Activin/Smad3 signaling is induced following withdrawal from cocaine, and such regulation may be a key molecular mechanism underlying behavioral and cellular plasticity in the brain following cocaine self-administration.
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Affiliation(s)
- Amy M. Gancarz
- Department of Pharmacology and Toxicology; Research Institute on Addictions; Program in Neuroscience, State University of New York at Buffalo, Buffalo, NY
| | - Zi-Jun Wang
- Department of Pharmacology and Toxicology; Research Institute on Addictions; Program in Neuroscience, State University of New York at Buffalo, Buffalo, NY
| | - Gabrielle L. Schroeder
- Department of Pharmacology and Toxicology; Research Institute on Addictions; Program in Neuroscience, State University of New York at Buffalo, Buffalo, NY
| | - Diane Damez-Werno
- Department of Neuroscience at Icahn School of Medicine at Mount Sinai, New York, NY
| | - Kevin Braunscheidel
- Department of Pharmacology and Toxicology; Research Institute on Addictions; Program in Neuroscience, State University of New York at Buffalo, Buffalo, NY
| | - Lauren E. Mueller
- Department of Pharmacology and Toxicology; Research Institute on Addictions; Program in Neuroscience, State University of New York at Buffalo, Buffalo, NY
| | - Monica S. Humby
- Department of Pharmacology and Toxicology; Research Institute on Addictions; Program in Neuroscience, State University of New York at Buffalo, Buffalo, NY
| | - Aaron Caccamise
- Department of Pharmacology and Toxicology; Research Institute on Addictions; Program in Neuroscience, State University of New York at Buffalo, Buffalo, NY
| | - Jennifer A. Martin
- Department of Pharmacology and Toxicology; Research Institute on Addictions; Program in Neuroscience, State University of New York at Buffalo, Buffalo, NY
| | - Karen C. Dietz
- Department of Pharmacology and Toxicology; Research Institute on Addictions; Program in Neuroscience, State University of New York at Buffalo, Buffalo, NY
| | | | - David M. Dietz
- Department of Pharmacology and Toxicology; Research Institute on Addictions; Program in Neuroscience, State University of New York at Buffalo, Buffalo, NY
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Mueller LE, Kausch MA, Markovic T, MacLaren DAA, Dietz DM, Park J, Clark SD. Intra-ventral tegmental area microinjections of urotensin II modulate the effects of cocaine. Behav Brain Res 2015; 278:271-9. [PMID: 25264578 DOI: 10.1016/j.bbr.2014.09.036] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2014] [Revised: 09/13/2014] [Accepted: 09/19/2014] [Indexed: 12/26/2022]
Abstract
Although the peptide urotensin II (UII) has well studied direct actions on the cardiovascular system, the UII receptor (UIIR) is expressed by neurons of the hindbrain. Specifically, the UIIR is expressed by the cholinergic neurons of the laterodorsal tegmentum (LDTg) and the pedunculopontine tegmentum (PPTg). These neurons send axons to the ventral tegmental area (VTA), for which the PPTg and LDTg are the sole source of acetylcholine. Therefore, it was hypothesized that UIIR activation within the VTA would modulate reward-related behaviors, such as cocaine-induced drug seeking. Intra-VTA microinjections of UII at high concentrations (1 nmole) established conditioned place preference (CPP), but also blocked cocaine-mediated CPP (10 mg/kg). When rats received systemic sub-effectual doses of cocaine (7.5 mg/kg) with intra-VTA injections of 1 or 10 pmole of UII CPP was formed. Furthermore, the second endogenous ligand for the UIIR, urotensin II-related peptide, had the same effect at the 10 pmole dose. The effects of low doses of UII were blocked by pretreatment with the UIIR antagonist SB657510. Furthermore, it was found that intra-VTA UII (10 pmole) further increased cocaine-mediated (7.5 mg/kg) rises in electrically evoked dopamine in the nucleus accumbens. Our study has found that activation of VTA-resident UIIR produces observable behavioral changes in rats, and that UIIR is able to modulate the effects of cocaine. In addition, it was found that UIIR activation within the VTA can potentiate cocaine-mediated neurochemical effects. Therefore, the coincident activation of the UII-system and cocaine administration may increase the liability for drug taking behavior.
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Affiliation(s)
- L E Mueller
- Department of Pharmacology and Toxicology, State University of New York at Buffalo, NY 14214, USA
| | - M A Kausch
- Department of Pharmacology and Toxicology, State University of New York at Buffalo, NY 14214, USA
| | - T Markovic
- Department of Pharmacology and Toxicology, State University of New York at Buffalo, NY 14214, USA
| | - D A A MacLaren
- Department of Pharmacology and Toxicology, State University of New York at Buffalo, NY 14214, USA
| | - D M Dietz
- Department of Pharmacology and Toxicology, State University of New York at Buffalo, NY 14214, USA; Research Institute on Addictions, State University of New York at Buffalo, NY 14214, USA
| | - J Park
- Department of Biotechnology and Clinical Laboratory Sciences, State University of New York at Buffalo, NY 14214, USA
| | - S D Clark
- Department of Pharmacology and Toxicology, State University of New York at Buffalo, NY 14214, USA; Department of Psychology, State University of New York at Buffalo, NY 14214, USA; Research Institute on Addictions, State University of New York at Buffalo, NY 14214, USA.
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Sutton AC, Yu W, Calos ME, Mueller LE, Berk M, Shim J, Molho ES, Brotchie JM, Carlen PL, Shin DS. Elevated potassium provides an ionic mechanism for deep brain stimulation in the hemiparkinsonian rat. Eur J Neurosci 2012; 37:231-41. [PMID: 23121286 DOI: 10.1111/ejn.12040] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2012] [Revised: 09/02/2012] [Accepted: 09/05/2012] [Indexed: 11/30/2022]
Abstract
The mechanism of high-frequency stimulation used in deep brain stimulation (DBS) for Parkinson's disease (PD) has not been completely elucidated. Previously, high-frequency stimulation of the rat entopeduncular nucleus, a basal ganglia output nucleus, elicited an increase in [K(+)](e) to 18 mm, in vitro. In this study, we assessed whether elevated K(+) can elicit DBS-like therapeutic effects in hemiparkinsonian rats by employing the limb-use asymmetry test and the self-adjusting stepping test. We then identified how these effects were meditated with in-vivo and in-vitro electrophysiology. Forelimb akinesia improved in hemiparkinsonian rats undergoing both tests after 20 mm KCl injection into the substantia nigra pars reticulata (SNr) or the subthalamic nucleus. In the SNr, neuronal spiking activity decreased from 38.2 ± 1.2 to 14.6 ± 1.6 Hz and attenuated SNr beta-frequency (12-30 Hz) oscillations after K(+) treatment. These oscillations are commonly associated with akinesia/bradykinesia in patients with PD and animal models of PD. Pressure ejection of 20 mm KCl onto SNr neurons in vitro caused a depolarisation block and sustained quiescence of SNr activity. In conclusion, our data showed that elevated K(+) injection into the hemiparkinsonian rat SNr improved forelimb akinesia, which coincided with a decrease in SNr neuronal spiking activity and desynchronised activity in SNr beta frequency, and subsequently an overall increase in ventral medial thalamic neuronal activity. Moreover, these findings also suggest that elevated K(+) may provide an ionic mechanism that can contribute to the therapeutic effects of DBS for the motor treatment of advanced PD.
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Affiliation(s)
- Alexander C Sutton
- Center for Neuropharmacology and Neuroscience, Albany Medical College, 47 New Scotland Avenue, Albany, NY 12208, USA
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Mueller LE. Concerning Medical Publications Sent to Military Camps in California by the California Medical Association Postgraduate Committee. Cal West Med 1943; 59:153. [PMID: 18746591 PMCID: PMC1780408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
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