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  • Mice, Inbred C57BL  (37)
  • American Association for the Advancement of Science (AAAS)  (20)
  • Nature Publishing Group (NPG)  (17)
  • American Geophysical Union (AGU)
  • American Institute of Physics
  • American Institute of Physics (AIP)
  • National Academy of Sciences
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Keywords
Publisher
  • American Association for the Advancement of Science (AAAS)  (20)
  • Nature Publishing Group (NPG)  (17)
  • American Geophysical Union (AGU)
  • American Institute of Physics
  • American Institute of Physics (AIP)
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  • 1
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    New role of bone morphogenetic protein 7 in brown adipogenesis and energy expenditure (2008)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2008-08-23
    Description: Adipose tissue is central to the regulation of energy balance. Two functionally different types of fat are present in mammals: white adipose tissue, the primary site of triglyceride storage, and brown adipose tissue, which is specialized in energy expenditure and can counteract obesity. Factors that specify the developmental fate and function of white and brown adipose tissue remain poorly understood. Here we demonstrate that whereas some members of the family of bone morphogenetic proteins (BMPs) support white adipocyte differentiation, BMP7 singularly promotes differentiation of brown preadipocytes even in the absence of the normally required hormonal induction cocktail. BMP7 activates a full program of brown adipogenesis including induction of early regulators of brown fat fate PRDM16 (PR-domain-containing 16; ref. 4) and PGC-1alpha (peroxisome proliferator-activated receptor-gamma (PPARgamma) coactivator-1alpha; ref. 5), increased expression of the brown-fat-defining marker uncoupling protein 1 (UCP1) and adipogenic transcription factors PPARgamma and CCAAT/enhancer-binding proteins (C/EBPs), and induction of mitochondrial biogenesis via p38 mitogen-activated protein (MAP) kinase-(also known as Mapk14) and PGC-1-dependent pathways. Moreover, BMP7 triggers commitment of mesenchymal progenitor cells to a brown adipocyte lineage, and implantation of these cells into nude mice results in development of adipose tissue containing mostly brown adipocytes. Bmp7 knockout embryos show a marked paucity of brown fat and an almost complete absence of UCP1. Adenoviral-mediated expression of BMP7 in mice results in a significant increase in brown, but not white, fat mass and leads to an increase in energy expenditure and a reduction in weight gain. These data reveal an important role of BMP7 in promoting brown adipocyte differentiation and thermogenesis in vivo and in vitro, and provide a potential new therapeutic approach for the treatment of obesity.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2745972/" 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/PMC2745972/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tseng, Yu-Hua -- Kokkotou, Efi -- Schulz, Tim J -- Huang, Tian Lian -- Winnay, Jonathon N -- Taniguchi, Cullen M -- Tran, T Thien -- Suzuki, Ryo -- Espinoza, Daniel O -- Yamamoto, Yuji -- Ahrens, Molly J -- Dudley, Andrew T -- Norris, Andrew W -- Kulkarni, Rohit N -- Kahn, C Ronald -- K08 DK064906/DK/NIDDK NIH HHS/ -- K08 DK64906/DK/NIDDK NIH HHS/ -- P30 DK040561/DK/NIDDK NIH HHS/ -- P30 DK040561-13/DK/NIDDK NIH HHS/ -- P30 DK46200/DK/NIDDK NIH HHS/ -- R01 DK 060837/DK/NIDDK NIH HHS/ -- R01 DK077097/DK/NIDDK NIH HHS/ -- R01 DK077097-01A1/DK/NIDDK NIH HHS/ -- R01 DK077097-02/DK/NIDDK NIH HHS/ -- R01 DK67536/DK/NIDDK NIH HHS/ -- R21 DK070722/DK/NIDDK NIH HHS/ -- R21 DK070722-01/DK/NIDDK NIH HHS/ -- R21 DK070722-02/DK/NIDDK NIH HHS/ -- England -- Nature. 2008 Aug 21;454(7207):1000-4. doi: 10.1038/nature07221.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Section on Obesity and Hormone Action, Joslin Diabetes Center, Harvard Medical School, Boston, Massachusetts 02215, USA. yu-hua.tseng@joslin.harvard.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18719589" target="_blank"〉PubMed〈/a〉
    Keywords: 3T3-L1 Cells ; *Adipogenesis ; Adipose Tissue, Brown/*growth & development/*metabolism ; Adipose Tissue, White/growth & development ; Animals ; Bone Morphogenetic Protein 7 ; Bone Morphogenetic Proteins/*metabolism ; Cell Line ; *Energy Metabolism/genetics ; Male ; Mesenchymal Stromal Cells/cytology/physiology ; Mice ; Mice, Inbred C57BL ; Mice, Nude ; Mitochondria/physiology ; Thermogenesis ; Transforming Growth Factor beta/*metabolism ; p38 Mitogen-Activated Protein Kinases/metabolism
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Nature Publishing Group (NPG)
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  • 2
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    HDAC2 negatively regulates memory formation and synaptic plasticity (2009)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2009-05-09
    Description: Chromatin modifications, especially histone-tail acetylation, have been implicated in memory formation. Increased histone-tail acetylation induced by inhibitors of histone deacetylases (HDACis) facilitates learning and memory in wild-type mice as well as in mouse models of neurodegeneration. Harnessing the therapeutic potential of HDACis requires knowledge of the specific HDAC family member(s) linked to cognitive enhancement. Here we show that neuron-specific overexpression of HDAC2, but not that of HDAC1, decreased dendritic spine density, synapse number, synaptic plasticity and memory formation. Conversely, Hdac2 deficiency resulted in increased synapse number and memory facilitation, similar to chronic treatment with HDACis in mice. Notably, reduced synapse number and learning impairment of HDAC2-overexpressing mice were ameliorated by chronic treatment with HDACis. Correspondingly, treatment with HDACis failed to further facilitate memory formation in Hdac2-deficient mice. Furthermore, analysis of promoter occupancy revealed an association of HDAC2 with the promoters of genes implicated in synaptic plasticity and memory formation. Taken together, our results suggest that HDAC2 functions in modulating synaptic plasticity and long-lasting changes of neural circuits, which in turn negatively regulates learning and memory. These observations encourage the development and testing of HDAC2-selective inhibitors for human diseases associated with memory impairment.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3498958/" 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/PMC3498958/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Guan, Ji-Song -- Haggarty, Stephen J -- Giacometti, Emanuela -- Dannenberg, Jan-Hermen -- Joseph, Nadine -- Gao, Jun -- Nieland, Thomas J F -- Zhou, Ying -- Wang, Xinyu -- Mazitschek, Ralph -- Bradner, James E -- DePinho, Ronald A -- Jaenisch, Rudolf -- Tsai, Li-Huei -- R01 DA028301/DA/NIDA NIH HHS/ -- R01 DA028301-02/DA/NIDA NIH HHS/ -- R01 NS051874/NS/NINDS NIH HHS/ -- Howard Hughes Medical Institute/ -- England -- Nature. 2009 May 7;459(7243):55-60. doi: 10.1038/nature07925.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Picower Institute for Learning and Memory, Department of Brain and Cognitive Sciences.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19424149" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Butyrates/pharmacology ; Dendritic Spines/physiology ; Electrical Synapses/*physiology ; Female ; Gene Expression Regulation ; Hippocampus/metabolism ; Histone Deacetylase 1 ; Histone Deacetylase 2 ; Histone Deacetylase Inhibitors ; Histone Deacetylases/deficiency/genetics/*metabolism ; Hydroxamic Acids/pharmacology ; Learning/drug effects ; Male ; Memory/drug effects/*physiology ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; Neurons/metabolism ; Promoter Regions, Genetic/genetics ; Repressor Proteins/antagonists & inhibitors/genetics/*metabolism ; Sodium/pharmacology
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 3
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    Basomedial amygdala mediates top-down control of anxiety and fear (2015)
    Nature Publishing Group (NPG)
    Details
    Publication Date: 2015-11-05
    Description: Anxiety-related conditions are among the most difficult neuropsychiatric diseases to treat pharmacologically, but respond to cognitive therapies. There has therefore been interest in identifying relevant top-down pathways from cognitive control regions in medial prefrontal cortex (mPFC). Identification of such pathways could contribute to our understanding of the cognitive regulation of affect, and provide pathways for intervention. Previous studies have suggested that dorsal and ventral mPFC subregions exert opposing effects on fear, as do subregions of other structures. However, precise causal targets for top-down connections among these diverse possibilities have not been established. Here we show that the basomedial amygdala (BMA) represents the major target of ventral mPFC in amygdala in mice. Moreover, BMA neurons differentiate safe and aversive environments, and BMA activation decreases fear-related freezing and high-anxiety states. Lastly, we show that the ventral mPFC-BMA projection implements top-down control of anxiety state and learned freezing, both at baseline and in stress-induced anxiety, defining a broadly relevant new top-down behavioural regulation pathway.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Adhikari, Avishek -- Lerner, Talia N -- Finkelstein, Joel -- Pak, Sally -- Jennings, Joshua H -- Davidson, Thomas J -- Ferenczi, Emily -- Gunaydin, Lisa A -- Mirzabekov, Julie J -- Ye, Li -- Kim, Sung-Yon -- Lei, Anna -- Deisseroth, Karl -- 1F32MH105053-01/MH/NIMH NIH HHS/ -- K99 MH106649/MH/NIMH NIH HHS/ -- K99MH106649/MH/NIMH NIH HHS/ -- Howard Hughes Medical Institute/ -- England -- Nature. 2015 Nov 12;527(7577):179-85. doi: 10.1038/nature15698. Epub 2015 Nov 4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Bioengineering, Stanford University, Stanford, California 94305, USA. ; CNC Program, Stanford University, Stanford, California 94304, USA. ; Neurosciences Program, Stanford University, Stanford, California 94305, USA. ; Department of Psychiatry and Behavioral Sciences, Stanford University, Stanford, California 94305, USA. ; Howard Hughes Medical Institute, Stanford University, Stanford, California 94305, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26536109" target="_blank"〉PubMed〈/a〉
    Keywords: Amygdala/cytology/*physiology ; Animals ; Anxiety/*physiopathology/psychology ; Extinction, Psychological/physiology ; Fear/*physiology/psychology ; Female ; Freezing Reaction, Cataleptic/physiology ; Learning/physiology ; Male ; Mice ; Mice, Inbred C57BL ; Neural Pathways/*physiology ; Prefrontal Cortex/cytology/physiology ; Stress, Psychological/physiopathology
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 4
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    Murine MHC polymorphism and T cell specificities (1989)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1989-05-05
    Description: The major histocompatibility complex (MHC) genes are polymorphic in mouse and man. The products of these genes are receptors for peptides, which while bound, are displayed to T lymphocytes. When bound peptides from antigens are recognized by T lymphocytes, an immune response is initiated against the antigens. This study assessed the relation of the polymorphic MHC molecules to their peptide specificity. The results indicate that although an individual of the species has a limited ability to recognize antigens, the species as a whole has broad reactivity. This rationalizes the extreme polymorphism observed.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Roy, S -- Scherer, M T -- Briner, T J -- Smith, J A -- Gefter, M L -- AI13357/AI/NIAID NIH HHS/ -- CA28900/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1989 May 5;244(4904):572-5.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology, Massachusetts Institute of Technology, Cambridge 02139.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/2470147" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Antigens/immunology ; Bacteriophage lambda ; Epitopes/immunology ; Histocompatibility Antigens Class II/immunology ; Hybridomas/immunology ; Immunization ; *Major Histocompatibility Complex ; Mice ; Mice, Inbred BALB C ; Mice, Inbred C3H ; Mice, Inbred C57BL ; Peptide Fragments/immunology ; *Polymorphism, Genetic ; Repressor Proteins/immunology ; T-Lymphocytes/*immunology
    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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  • 5
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    A functional role for adult hippocampal neurogenesis in spatial pattern separation (2009)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2009-07-11
    Description: The dentate gyrus (DG) of the mammalian hippocampus is hypothesized to mediate pattern separation-the formation of distinct and orthogonal representations of mnemonic information-and also undergoes neurogenesis throughout life. How neurogenesis contributes to hippocampal function is largely unknown. Using adult mice in which hippocampal neurogenesis was ablated, we found specific impairments in spatial discrimination with two behavioral assays: (i) a spatial navigation radial arm maze task and (ii) a spatial, but non-navigable, task in the mouse touch screen. Mice with ablated neurogenesis were impaired when stimuli were presented with little spatial separation, but not when stimuli were more widely separated in space. Thus, newborn neurons may be necessary for normal pattern separation function in the DG of adult mice.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2997634/" 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/PMC2997634/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Clelland, C D -- Choi, M -- Romberg, C -- Clemenson, G D Jr -- Fragniere, A -- Tyers, P -- Jessberger, S -- Saksida, L M -- Barker, R A -- Gage, F H -- Bussey, T J -- NS-050217/NS/NINDS NIH HHS/ -- R01 NS050217/NS/NINDS NIH HHS/ -- R01 NS050217-05/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2009 Jul 10;325(5937):210-3. doi: 10.1126/science.1173215.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Genetics, Salk Institute for Biological Studies, La Jolla, CA 92037, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19590004" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cues ; Dentate Gyrus/cytology/*physiology ; Discrimination Learning/*physiology ; Female ; Hippocampus/cytology/*physiology ; Maze Learning ; Memory/*physiology ; Mice ; Mice, Inbred C57BL ; *Neurogenesis ; Neurons/*physiology ; Psychomotor Performance ; *Space Perception
    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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  • 6
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    Global epigenomic reconfiguration during mammalian brain development (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-07-06
    Description: DNA methylation is implicated in mammalian brain development and plasticity underlying learning and memory. We report the genome-wide composition, patterning, cell specificity, and dynamics of DNA methylation at single-base resolution in human and mouse frontal cortex throughout their lifespan. Widespread methylome reconfiguration occurs during fetal to young adult development, coincident with synaptogenesis. During this period, highly conserved non-CG methylation (mCH) accumulates in neurons, but not glia, to become the dominant form of methylation in the human neuronal genome. Moreover, we found an mCH signature that identifies genes escaping X-chromosome inactivation. Last, whole-genome single-base resolution 5-hydroxymethylcytosine (hmC) maps revealed that hmC marks fetal brain cell genomes at putative regulatory regions that are CG-demethylated and activated in the adult brain and that CG demethylation at these hmC-poised loci depends on Tet2 activity.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3785061/" 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/PMC3785061/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lister, Ryan -- Mukamel, Eran A -- Nery, Joseph R -- Urich, Mark -- Puddifoot, Clare A -- Johnson, Nicholas D -- Lucero, Jacinta -- Huang, Yun -- Dwork, Andrew J -- Schultz, Matthew D -- Yu, Miao -- Tonti-Filippini, Julian -- Heyn, Holger -- Hu, Shijun -- Wu, Joseph C -- Rao, Anjana -- Esteller, Manel -- He, Chuan -- Haghighi, Fatemeh G -- Sejnowski, Terrence J -- Behrens, M Margarita -- Ecker, Joseph R -- AI44432/AI/NIAID NIH HHS/ -- CA151535/CA/NCI NIH HHS/ -- HD065812/HD/NICHD NIH HHS/ -- HG006827/HG/NHGRI NIH HHS/ -- K99NS080911/NS/NINDS NIH HHS/ -- MH094670/MH/NIMH NIH HHS/ -- R01 AI044432/AI/NIAID NIH HHS/ -- R01 CA151535/CA/NCI NIH HHS/ -- R01 HD065812/HD/NICHD NIH HHS/ -- R01 HG006827/HG/NHGRI NIH HHS/ -- R01 MH094670/MH/NIMH NIH HHS/ -- R01 MH094774/MH/NIMH NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2013 Aug 9;341(6146):1237905. doi: 10.1126/science.1237905. Epub 2013 Jul 4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Genomic Analysis Laboratory, The Salk Institute for Biological Studies, La Jolla, CA 92037, USA. ryan.lister@uwa.edu.au〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23828890" target="_blank"〉PubMed〈/a〉
    Keywords: 5-Methylcytosine/metabolism ; Adult ; Animals ; Base Sequence ; Conserved Sequence ; Cytosine/*analogs & derivatives/metabolism ; *DNA Methylation ; *Epigenesis, Genetic ; Epigenomics ; Frontal Lobe/*growth & development ; *Gene Expression Regulation, Developmental ; Genome-Wide Association Study ; Humans ; Longevity ; Mice ; Mice, Inbred C57BL ; X Chromosome Inactivation/genetics
    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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    Creating a false memory in the hippocampus (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-07-28
    Description: Memories can be unreliable. We created a false memory in mice by optogenetically manipulating memory engram-bearing cells in the hippocampus. Dentate gyrus (DG) or CA1 neurons activated by exposure to a particular context were labeled with channelrhodopsin-2. These neurons were later optically reactivated during fear conditioning in a different context. The DG experimental group showed increased freezing in the original context, in which a foot shock was never delivered. The recall of this false memory was context-specific, activated similar downstream regions engaged during natural fear memory recall, and was also capable of driving an active fear response. Our data demonstrate that it is possible to generate an internally represented and behaviorally expressed fear memory via artificial means.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ramirez, Steve -- Liu, Xu -- Lin, Pei-Ann -- Suh, Junghyup -- Pignatelli, Michele -- Redondo, Roger L -- Ryan, Tomas J -- Tonegawa, Susumu -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2013 Jul 26;341(6144):387-91. doi: 10.1126/science.1239073.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉RIKEN-Massachusetts Institute of Technology Center for Neural Circuit Genetics at the Picower Institute for Learning and Memory, Department of Biology, MIT, Cambridge, MA 02139, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23888038" target="_blank"〉PubMed〈/a〉
    Keywords: Amygdala/physiology ; Animals ; Association ; CA1 Region, Hippocampal/cytology/*physiology ; *Conditioning (Psychology) ; Dentate Gyrus/cytology/*physiology ; Dependovirus/genetics ; Doxycycline/administration & dosage ; Fear ; Genes, fos ; Light ; Memory/*physiology ; Mental Recall/physiology ; Mice ; Mice, Inbred C57BL ; Mice, Transgenic ; Neurons/*physiology ; Optogenetics ; Rhodopsin/genetics/metabolism
    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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  • 8
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    The Gs-linked receptor GPR3 maintains meiotic arrest in mammalian oocytes (2004)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2004-12-14
    Description: Mammalian oocytes are held in prophase arrest by an unknown signal from the surrounding somatic cells. Here we show that the orphan Gs-linked receptor GPR3, which is localized in the oocyte, maintains this arrest. Oocytes from Gpr3 knockout mice resume meiosis within antral follicles, independently of an increase in luteinizing hormone, and this phenotype can be reversed by injection of Gpr3 RNA into the oocytes. Thus, the GPR3 receptor is a link in communication between the somatic cells and oocyte of the ovarian follicle and is crucial for the regulation of meiosis.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mehlmann, Lisa M -- Saeki, Yoshinaga -- Tanaka, Shigeru -- Brennan, Thomas J -- Evsikov, Alexei V -- Pendola, Frank L -- Knowles, Barbara B -- Eppig, John J -- Jaffe, Laurinda A -- New York, N.Y. -- Science. 2004 Dec 10;306(5703):1947-50.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Cell Biology, University of Connecticut Health Center (UCHC), Farmington, CT 06032, USA. lmehlmann@neuron.uchc.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15591206" target="_blank"〉PubMed〈/a〉
    Keywords: Adenylyl Cyclases/metabolism ; Animals ; Chondroitin Sulfate Proteoglycans/genetics/metabolism ; Expressed Sequence Tags ; Female ; Granulosa Cells/physiology ; Heterotrimeric GTP-Binding Proteins/*metabolism ; In Situ Hybridization ; Lectins, C-Type ; Ligands ; Luteinizing Hormone/metabolism ; *Meiosis ; Metaphase ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; Mitosis ; Oocytes/*physiology ; Ovarian Follicle/*physiology ; RNA/genetics/metabolism ; Receptors, G-Protein-Coupled/genetics/*physiology ; Versicans
    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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  • 9
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    Uncharged tRNA and sensing of amino acid deficiency in mammalian piriform cortex (2005)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2005-03-19
    Description: Recognizing a deficiency of indispensable amino acids (IAAs) for protein synthesis is vital for dietary selection in metazoans, including humans. Cells in the brain's anterior piriform cortex (APC) are sensitive to IAA deficiency, signaling diet rejection and foraging for complementary IAA sources, but the mechanism is unknown. Here we report that the mechanism for recognizing IAA-deficient foods follows the conserved general control (GC) system, wherein uncharged transfer RNA induces phosphorylation of eukaryotic initiation factor 2 (eIF2) via the GC nonderepressing 2 (GCN2) kinase. Thus, a basic mechanism of nutritional stress management functions in mammalian brain to guide food selection for survival.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hao, Shuzhen -- Sharp, James W -- Ross-Inta, Catherine M -- McDaniel, Brent J -- Anthony, Tracy G -- Wek, Ronald C -- Cavener, Douglas R -- McGrath, Barbara C -- Rudell, John B -- Koehnle, Thomas J -- Gietzen, Dorothy W -- GM49164/GM/NIGMS NIH HHS/ -- NS043231/NS/NINDS NIH HHS/ -- NS33347/NS/NINDS NIH HHS/ -- New York, N.Y. -- Science. 2005 Mar 18;307(5716):1776-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉School of Veterinary Medicine, Department of Anatomy, Physiology and Cell Biology, University of California, Davis, CA 95616, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15774759" target="_blank"〉PubMed〈/a〉
    Keywords: Acylation ; Amino Acids, Essential/*administration & dosage/analysis/*deficiency ; Animals ; Diet ; Eating ; Eukaryotic Initiation Factor-2/*metabolism ; *Food ; Food Preferences ; Leucine/administration & dosage/*analogs & derivatives/pharmacology ; Mice ; Mice, Inbred C57BL ; Olfactory Pathways/*metabolism ; Phosphorylation ; Protein Kinases/*metabolism ; Protein-Serine-Threonine Kinases ; RNA, Transfer/*metabolism ; Rats ; Stereoisomerism ; Threonine/administration & dosage ; eIF-2 Kinase/metabolism
    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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    Cerebellar LTD and learning-dependent timing of conditioned eyelid responses (2003)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2003-09-23
    Description: Mammals can be trained to make a conditioned movement at a precise time, which is correlated to the interval between the conditioned stimulus and unconditioned stimulus during the learning. This learning-dependent timing has been shown to depend on an intact cerebellar cortex, but which cellular process is responsible for this form of learning remains to be demonstrated. Here, we show that protein kinase C-dependent long-term depression in Purkinje cells is necessary for learning-dependent timing of Pavlovian-conditioned eyeblink responses.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Koekkoek, S K E -- Hulscher, H C -- Dortland, B R -- Hensbroek, R A -- Elgersma, Y -- Ruigrok, T J H -- De Zeeuw, C I -- New York, N.Y. -- Science. 2003 Sep 19;301(5640):1736-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neuroscience, Erasmus MC, 3000 DR Rotterdam, Netherlands.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/14500987" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Blinking ; Cerebellum/*physiology ; *Conditioning, Eyelid ; Electroshock ; *Learning ; *Long-Term Synaptic Depression ; Mice ; Mice, Inbred C57BL ; Mice, Transgenic ; Mutation ; N-Methylaspartate/pharmacology ; Protein Kinase C/genetics/metabolism ; Purkinje Cells/*physiology ; Time Factors
    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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