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  • American Association for the Advancement of Science (AAAS)  (285)
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  • 1
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    Early tagging of cortical networks is required for the formation of enduring associative memory (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-02-19
    Description: Although formation and stabilization of long-lasting associative memories are thought to require time-dependent coordinated hippocampal-cortical interactions, the underlying mechanisms remain unclear. Here, we present evidence that neurons in the rat cortex must undergo a "tagging process" upon encoding to ensure the progressive hippocampal-driven rewiring of cortical networks that support remote memory storage. This process was AMPA- and N-methyl-D-aspartate receptor-dependent, information-specific, and capable of modulating remote memory persistence by affecting the temporal dynamics of hippocampal-cortical interactions. Post-learning reinforcement of the tagging process via time-limited epigenetic modifications resulted in improved remote memory retrieval. Thus, early tagging of cortical networks is a crucial neurobiological process for remote memory formation whose functional properties fit the requirements imposed by the extended time scale of systems-level memory consolidation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lesburgueres, Edith -- Gobbo, Oliviero L -- Alaux-Cantin, Stephanie -- Hambucken, Anne -- Trifilieff, Pierre -- Bontempi, Bruno -- New York, N.Y. -- Science. 2011 Feb 18;331(6019):924-8. doi: 10.1126/science.1196164.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Institut des Maladies Neurodegeneratives, CNRS UMR 5293, Universites Bordeaux 1 et 2, Talence, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21330548" target="_blank"〉PubMed〈/a〉
    Keywords: Acetylation ; Animals ; Epigenesis, Genetic ; Excitatory Amino Acid Antagonists/pharmacology ; Food Preferences ; Frontal Lobe/*physiology ; Hippocampus/*physiology ; Histones/metabolism ; Learning ; Male ; *Memory, Long-Term ; Neural Pathways ; Neuronal Plasticity ; Neurons/cytology/*physiology ; Odors ; Rats ; Rats, Sprague-Dawley ; Receptors, AMPA/metabolism ; Receptors, N-Methyl-D-Aspartate/metabolism ; Reinforcement (Psychology) ; Signal Transduction ; Synapses/*physiology ; Synaptic Transmission
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 2
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    An expanded palette of genetically encoded Ca(2)(+) indicators (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-09-10
    Description: Engineered fluorescent protein (FP) chimeras that modulate their fluorescence in response to changes in calcium ion (Ca(2+)) concentration are powerful tools for visualizing intracellular signaling activity. However, despite a decade of availability, the palette of single FP-based Ca(2+) indicators has remained limited to a single green hue. We have expanded this palette by developing blue, improved green, and red intensiometric indicators, as well as an emission ratiometric indicator with an 11,000% ratio change. This series enables improved single-color Ca(2+) imaging in neurons and transgenic Caenorhabditis elegans. In HeLa cells, Ca(2+) was imaged in three subcellular compartments, and, in conjunction with a cyan FP-yellow FP-based indicator, Ca(2+) and adenosine 5'-triphosphate were simultaneously imaged. This palette of indicators paints the way to a colorful new era of Ca(2+) imaging.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3560286/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3560286/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhao, Yongxin -- Araki, Satoko -- Wu, Jiahui -- Teramoto, Takayuki -- Chang, Yu-Fen -- Nakano, Masahiro -- Abdelfattah, Ahmed S -- Fujiwara, Manabi -- Ishihara, Takeshi -- Nagai, Takeharu -- Campbell, Robert E -- 94487/Canadian Institutes of Health Research/Canada -- 99085/Canadian Institutes of Health Research/Canada -- Canadian Institutes of Health Research/Canada -- New York, N.Y. -- Science. 2011 Sep 30;333(6051):1888-91. doi: 10.1126/science.1208592. Epub 2011 Sep 8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21903779" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine Triphosphate/metabolism ; Animals ; Animals, Genetically Modified ; Caenorhabditis elegans ; Calcium/*analysis ; *Calcium Signaling ; *Directed Molecular Evolution ; Fluorescence ; Fluorescence Resonance Energy Transfer ; Green Fluorescent Proteins/*chemistry/genetics ; HeLa Cells ; Humans ; Luminescent Proteins/*chemistry/genetics ; Molecular Sequence Data ; Neurons/metabolism ; *Protein Engineering ; Rats ; Recombinant Fusion Proteins/*chemistry ; Spectrometry, Fluorescence ; Transfection
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 3
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    AMP-activated protein kinase regulates neuronal polarization by interfering with PI 3-kinase localization (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-03-26
    Description: Axon-dendrite polarization is crucial for neural network wiring and information processing in the brain. Polarization begins with the transformation of a single neurite into an axon and its subsequent rapid extension, which requires coordination of cellular energy status to allow for transport of building materials to support axon growth. We found that activation of the energy-sensing adenosine 5'-monophosphate (AMP)-activated protein kinase (AMPK) pathway suppressed axon initiation and neuronal polarization. Phosphorylation of the kinesin light chain of the Kif5 motor protein by AMPK disrupted the association of the motor with phosphatidylinositol 3-kinase (PI3K), preventing PI3K targeting to the axonal tip and inhibiting polarization and axon growth.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3325765/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3325765/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Amato, Stephen -- Liu, Xiuxin -- Zheng, Bin -- Cantley, Lewis -- Rakic, Pasko -- Man, Heng-Ye -- GM41890/GM/NIGMS NIH HHS/ -- GM56203/GM/NIGMS NIH HHS/ -- K99CA133245/CA/NCI NIH HHS/ -- MH07907/MH/NIMH NIH HHS/ -- R00 CA133245/CA/NCI NIH HHS/ -- R01 GM056203/GM/NIGMS NIH HHS/ -- R01 NS014841/NS/NINDS NIH HHS/ -- R01 NS014841-32/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2011 Apr 8;332(6026):247-51. doi: 10.1126/science.1201678. Epub 2011 Mar 24.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, Boston University, 5 Cummington Street, Boston, MA 02215, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21436401" target="_blank"〉PubMed〈/a〉
    Keywords: AMP-Activated Protein Kinases/*metabolism ; Aminoimidazole Carboxamide/analogs & derivatives/pharmacology ; Animals ; Axons/enzymology/*physiology/ultrastructure ; *Cell Polarity/drug effects ; Cells, Cultured ; Hippocampus/cytology/embryology ; Metformin/pharmacology ; Mice ; Microtubule-Associated Proteins/metabolism ; Neurons/cytology/drug effects/enzymology/*physiology ; Phosphatidylinositol 3-Kinase/*metabolism ; Phosphorylation ; Proto-Oncogene Proteins c-akt/metabolism ; Rats ; Recombinant Fusion Proteins/metabolism ; Ribonucleotides/pharmacology ; Signal Transduction ; Tissue Culture Techniques
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 4
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    Cardiac myosin activation: a potential therapeutic approach for systolic heart failure (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-03-19
    Description: Decreased cardiac contractility is a central feature of systolic heart failure. Existing drugs increase cardiac contractility indirectly through signaling cascades but are limited by their mechanism-related adverse effects. To avoid these limitations, we previously developed omecamtiv mecarbil, a small-molecule, direct activator of cardiac myosin. Here, we show that it binds to the myosin catalytic domain and operates by an allosteric mechanism to increase the transition rate of myosin into the strongly actin-bound force-generating state. Paradoxically, it inhibits adenosine 5'-triphosphate turnover in the absence of actin, which suggests that it stabilizes an actin-bound conformation of myosin. In animal models, omecamtiv mecarbil increases cardiac function by increasing the duration of ejection without changing the rates of contraction. Cardiac myosin activation may provide a new therapeutic approach for systolic heart failure.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4090309/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4090309/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Malik, Fady I -- Hartman, James J -- Elias, Kathleen A -- Morgan, Bradley P -- Rodriguez, Hector -- Brejc, Katjusa -- Anderson, Robert L -- Sueoka, Sandra H -- Lee, Kenneth H -- Finer, Jeffrey T -- Sakowicz, Roman -- Baliga, Ramesh -- Cox, David R -- Garard, Marc -- Godinez, Guillermo -- Kawas, Raja -- Kraynack, Erica -- Lenzi, David -- Lu, Pu Ping -- Muci, Alexander -- Niu, Congrong -- Qian, Xiangping -- Pierce, Daniel W -- Pokrovskii, Maria -- Suehiro, Ion -- Sylvester, Sheila -- Tochimoto, Todd -- Valdez, Corey -- Wang, Wenyue -- Katori, Tatsuo -- Kass, David A -- Shen, You-Tang -- Vatner, Stephen F -- Morgans, David J -- 1-R43-HL-66647-1/HL/NHLBI NIH HHS/ -- R01 HL106511/HL/NHLBI NIH HHS/ -- R43 HL066647/HL/NHLBI NIH HHS/ -- New York, N.Y. -- Science. 2011 Mar 18;331(6023):1439-43. doi: 10.1126/science.1200113.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Preclinical Research and Development, Cytokinetics, Inc., South San Francisco, CA 94080, USA. fmalik@cytokinetics.com〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21415352" target="_blank"〉PubMed〈/a〉
    Keywords: Actin Cytoskeleton/metabolism ; Actins/metabolism ; Adenosine Triphosphatases/metabolism ; Adenosine Triphosphate/metabolism ; Adrenergic beta-Agonists/pharmacology ; Allosteric Regulation ; Animals ; Binding Sites ; Calcium/metabolism ; Cardiac Myosins/chemistry/*metabolism ; Cardiac Output/drug effects ; Dogs ; Female ; Heart Failure, Systolic/*drug therapy/physiopathology ; Isoproterenol/pharmacology ; Male ; Myocardial Contraction/*drug effects ; Myocytes, Cardiac/*drug effects/physiology ; Phosphates/metabolism ; Protein Binding ; Protein Conformation ; Protein Isoforms/chemistry/metabolism ; Rats ; Rats, Sprague-Dawley ; Urea/*analogs & derivatives/chemistry/metabolism/pharmacology ; Ventricular Function, Left/drug effects
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
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  • 5
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    Schema-dependent gene activation and memory encoding in neocortex (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-07-09
    Description: When new learning occurs against the background of established prior knowledge, relevant new information can be assimilated into a schema and thereby expand the knowledge base. An animal model of this important component of memory consolidation reveals that systems memory consolidation can be very fast. In experiments with rats, we found that the hippocampal-dependent learning of new paired associates is associated with a striking up-regulation of immediate early genes in the prelimbic region of the medial prefrontal cortex, and that pharmacological interventions targeted at that area can prevent both new learning and the recall of remotely and even recently consolidated information. These findings challenge the concept of distinct fast (hippocampal) and slow (cortical) learning systems, and shed new light on the neural mechanisms of memory assimilation into schemas.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tse, Dorothy -- Takeuchi, Tomonori -- Kakeyama, Masaki -- Kajii, Yasushi -- Okuno, Hiroyuki -- Tohyama, Chiharu -- Bito, Haruhiko -- Morris, Richard G M -- G0700447/Medical Research Council/United Kingdom -- Medical Research Council/United Kingdom -- New York, N.Y. -- Science. 2011 Aug 12;333(6044):891-5. doi: 10.1126/science.1205274. Epub 2011 Jul 7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Centre for Cognitive and Neural Systems, University of Edinburgh, Edinburgh EH8 9JZ, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21737703" target="_blank"〉PubMed〈/a〉
    Keywords: 6-Cyano-7-nitroquinoxaline-2,3-dione/pharmacology ; Animals ; Cues ; Cytoskeletal Proteins/genetics ; Early Growth Response Protein 1/genetics ; *Genes, Immediate-Early ; Hippocampus/*physiology ; Learning ; Male ; *Memory ; *Mental Recall ; Neocortex/*physiology ; Nerve Tissue Proteins/genetics ; Prefrontal Cortex/*physiology ; Rats ; Receptors, AMPA/antagonists & inhibitors ; Receptors, N-Methyl-D-Aspartate/antagonists & inhibitors ; Synaptic Transmission/drug effects ; *Transcriptional Activation ; Up-Regulation
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
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  • 6
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    Action-potential modulation during axonal conduction (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-02-05
    Description: Once initiated near the soma, an action potential (AP) is thought to propagate autoregeneratively and distribute uniformly over axonal arbors. We challenge this classic view by showing that APs are subject to waveform modulation while they travel down axons. Using fluorescent patch-clamp pipettes, we recorded APs from axon branches of hippocampal CA3 pyramidal neurons ex vivo. The waveforms of axonal APs increased in width in response to the local application of glutamate and an adenosine A(1) receptor antagonist to the axon shafts, but not to other unrelated axon branches. Uncaging of calcium in periaxonal astrocytes caused AP broadening through ionotropic glutamate receptor activation. The broadened APs triggered larger calcium elevations in presynaptic boutons and facilitated synaptic transmission to postsynaptic neurons. This local AP modification may enable axonal computation through the geometry of axon wiring.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Sasaki, Takuya -- Matsuki, Norio -- Ikegaya, Yuji -- New York, N.Y. -- Science. 2011 Feb 4;331(6017):599-601. doi: 10.1126/science.1197598.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Chemical Pharmacology, Graduate School of Pharmaceutical Sciences, University of Tokyo, Tokyo 113-0033, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21292979" target="_blank"〉PubMed〈/a〉
    Keywords: *Action Potentials/drug effects ; Adenosine/metabolism/pharmacology ; Adenosine A1 Receptor Antagonists/pharmacology ; Animals ; Astrocytes/metabolism ; Axons/drug effects/*physiology ; CA3 Region, Hippocampal/*cytology/physiology ; Calcium/metabolism ; Excitatory Postsynaptic Potentials ; Glutamic Acid/pharmacology ; In Vitro Techniques ; Patch-Clamp Techniques ; Potassium Channels/metabolism ; Presynaptic Terminals/physiology ; Pyramidal Cells/*physiology ; Rats ; Rats, Wistar ; Receptor, Adenosine A1/metabolism ; Receptors, AMPA/metabolism ; *Synaptic Transmission ; Xanthines/pharmacology ; gamma-Aminobutyric Acid/pharmacology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 7
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    Linking context with reward: a functional circuit from hippocampal CA3 to ventral tegmental area (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-07-19
    Description: Reward-motivated behavior is strongly influenced by the learned significance of contextual stimuli in the environment. However, the neural pathways that mediate context-reward relations are not well understood. We have identified a circuit from area CA3 of dorsal hippocampus to ventral tegmental area (VTA) that uses lateral septum (LS) as a relay. Theta frequency stimulation of CA3 excited VTA dopamine (DA) neurons and inhibited non-DA neurons. DA neuron excitation was likely mediated by disinhibition because local antagonism of gamma-aminobutyric acid receptors blocked responses to CA3 stimulation. Inactivating components of the CA3-LS-VTA pathway blocked evoked responses in VTA and also reinstatement of cocaine-seeking by contextual stimuli. This transsynaptic link between hippocampus and VTA appears to be an important substrate by which environmental context regulates goal-directed behavior.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3150711/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3150711/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Luo, Alice H -- Tahsili-Fahadan, Pouya -- Wise, Roy A -- Lupica, Carl R -- Aston-Jones, Gary -- F31-MH071093/MH/NIMH NIH HHS/ -- R37 DA006214/DA/NIDA NIH HHS/ -- R37-DA006214/DA/NIDA NIH HHS/ -- UL1 RR029882/RR/NCRR NIH HHS/ -- ZIA DA000471-07/Intramural NIH HHS/ -- New York, N.Y. -- Science. 2011 Jul 15;333(6040):353-7. doi: 10.1126/science.1204622.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Behavioral Neuroscience Section, Behavioral Neuroscience Research Branch, National Institute on Drug Abuse Intramural Research Program, National Institutes of Health, Baltimore, MD 21224, USA. alice_luo@hotmail.com〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21764750" target="_blank"〉PubMed〈/a〉
    Keywords: Action Potentials ; Animals ; Behavior, Animal ; Brain Mapping ; CA3 Region, Hippocampal/*physiology ; Cocaine/administration & dosage ; Dopamine/physiology ; Drug-Seeking Behavior ; Electric Stimulation ; GABA Agonists/pharmacology ; GABA Antagonists/pharmacology ; Hippocampus/physiology ; Male ; Models, Neurological ; Neural Inhibition ; Neural Pathways ; Neurons/*physiology ; Rats ; Rats, Sprague-Dawley ; *Reward ; Self Administration ; Septal Nuclei/*physiology ; Theta Rhythm ; Ventral Tegmental Area/*physiology ; gamma-Aminobutyric Acid/administration & dosage/physiology
    Print ISSN: 0036-8075
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  • 8
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    Newsmaker interview: Henry Markram. Blue Brain founder responds to critics, clarifies his goals. Interview by Greg Miller (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-11-15
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Markram, Henry -- New York, N.Y. -- Science. 2011 Nov 11;334(6057):748-9. doi: 10.1126/science.334.6057.748.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22076354" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Brain/physiology ; *Computer Simulation ; Consciousness ; Humans ; *Models, Neurological ; Rats ; Research Support as Topic ; Software
    Print ISSN: 0036-8075
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  • 9
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    Oxytocin selectively gates fear responses through distinct outputs from the central amygdala (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-07-02
    Description: Central amygdala (CeA) projections to hypothalamic and brain stem nuclei regulate the behavioral and physiological expression of fear, but it is unknown whether these different aspects of the fear response can be separately regulated by the CeA. We combined fluorescent retrograde tracing of CeA projections to nuclei that modulate fear-related freezing or cardiovascular responses with in vitro electrophysiological recordings and with in vivo monitoring of related behavioral and physiological parameters. CeA projections emerged from separate neuronal populations with different electrophysiological characteristics and different response properties to oxytocin. In vivo, oxytocin decreased freezing responses in fear-conditioned rats without affecting the cardiovascular response. Thus, neuropeptidergic signaling can modulate the CeA outputs through separate neuronal circuits and thereby individually steer the various aspects of the fear response.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Viviani, Daniele -- Charlet, Alexandre -- van den Burg, Erwin -- Robinet, Camille -- Hurni, Nicolas -- Abatis, Marios -- Magara, Fulvio -- Stoop, Ron -- New York, N.Y. -- Science. 2011 Jul 1;333(6038):104-7. doi: 10.1126/science.1201043.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Centre for Psychiatric Neuroscience, Department of Psychiatry, Lausanne University Hospital Center, University of Lausanne, CH-1015 Lausanne, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21719680" target="_blank"〉PubMed〈/a〉
    Keywords: Amygdala/*physiology ; Animals ; Bombesin/pharmacology ; Brain Stem/*physiology ; Conditioning (Psychology) ; Fear/*physiology ; Female ; GABA-A Receptor Agonists/pharmacology ; Heart Rate/drug effects ; Hypothalamus/*physiology ; Male ; Muscimol/pharmacology ; Neural Inhibition ; Neural Pathways/physiology ; Neurons/*physiology ; Oxytocin/agonists/analogs & derivatives/pharmacology/*physiology ; Patch-Clamp Techniques ; Periaqueductal Gray/*physiology ; Rats ; Rats, Sprague-Dawley
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 10
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    Empathy and pro-social behavior in rats (2011)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2011-12-14
    Description: Whereas human pro-social behavior is often driven by empathic concern for another, it is unclear whether nonprimate mammals experience a similar motivational state. To test for empathically motivated pro-social behavior in rodents, we placed a free rat in an arena with a cagemate trapped in a restrainer. After several sessions, the free rat learned to intentionally and quickly open the restrainer and free the cagemate. Rats did not open empty or object-containing restrainers. They freed cagemates even when social contact was prevented. When liberating a cagemate was pitted against chocolate contained within a second restrainer, rats opened both restrainers and typically shared the chocolate. Thus, rats behave pro-socially in response to a conspecific's distress, providing strong evidence for biological roots of empathically motivated helping behavior.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3760221/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3760221/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ben-Ami Bartal, Inbal -- Decety, Jean -- Mason, Peggy -- DA022429/DA/NIDA NIH HHS/ -- DA022978/DA/NIDA NIH HHS/ -- R01 DA022978/DA/NIDA NIH HHS/ -- R21 DA022429/DA/NIDA NIH HHS/ -- New York, N.Y. -- Science. 2011 Dec 9;334(6061):1427-30. doi: 10.1126/science.1210789.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Psychology, University of Chicago, Chicago, IL, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22158823" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Behavior, Animal ; Cooperative Behavior ; *Empathy ; Female ; Helping Behavior ; Male ; Motivation ; Rats ; Rats, Sprague-Dawley ; Restraint, Physical ; *Social Behavior ; *Stress, Psychological
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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