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  • Animals  (4)
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  • American Association for the Advancement of Science (AAAS)  (4)
  • 1
    Publication Date: 2011-08-13
    Description: Midbrain dopamine neurons regulate many important behavioral processes, and their dysfunctions are associated with several human neuropsychiatric disorders such as attention deficit hyperactivity disorder (ADHD) and schizophrenia. Here, we report that these neurons in mice selectively express guanylyl cyclase-C (GC-C), a membrane receptor previously thought to be expressed mainly in the intestine. GC-C activation potentiates the excitatory responses mediated by glutamate and acetylcholine receptors via the activity of guanosine 3',5'-monophosphate-dependent protein kinase (PKG). Mice in which GC-C has been knocked out exhibit hyperactivity and attention deficits. Moreover, their behavioral phenotypes are reversed by ADHD therapeutics and a PKG activator. These results indicate important behavioral and physiological functions for the GC-C/PKG signaling pathway within the brain and suggest new therapeutic targets for neuropsychiatric disorders related to the malfunctions of midbrain dopamine neurons.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gong, Rong -- Ding, Cheng -- Hu, Ji -- Lu, Yao -- Liu, Fei -- Mann, Elizabeth -- Xu, Fuqiang -- Cohen, Mitchell B -- Luo, Minmin -- New York, N.Y. -- Science. 2011 Sep 16;333(6049):1642-6. doi: 10.1126/science.1207675. Epub 2011 Aug 11.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Graduate Program in Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21835979" target="_blank"〉PubMed〈/a〉
    Keywords: Amphetamine/administration & dosage ; Animals ; Attention ; Attention Deficit Disorder with Hyperactivity/genetics/*metabolism ; Behavior, Animal/drug effects ; Cyclic GMP/metabolism ; Cyclic GMP-Dependent Protein Kinases/*metabolism ; Disease Models, Animal ; Dopamine/metabolism ; Enzyme Activation ; Gastrointestinal Hormones/metabolism/pharmacology ; Glycine/analogs & derivatives/metabolism/pharmacology ; Impulsive Behavior ; Ligands ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; Motor Activity/drug effects ; Natriuretic Peptides/metabolism/pharmacology ; Neurons/*metabolism ; Patch-Clamp Techniques ; Receptors, Glutamate/metabolism ; Receptors, Guanylate Cyclase-Coupled/genetics/*metabolism ; Receptors, Muscarinic/metabolism ; Receptors, Peptide/genetics/*metabolism ; Resorcinols/metabolism/pharmacology ; Signal Transduction ; Substantia Nigra/cytology/*metabolism ; Ventral Tegmental Area/cytology/*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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  • 2
    Publication Date: 2003-02-22
    Description: Many mammalian species rely on pheromones-semiochemicals produced by other members of the same species-to communicate social status and reproductive readiness. To assess how the central nervous system integrates the complex repertoire of pheromones, we recorded from single neurons in the accessory olfactory bulb, a nucleus that processes pheromonal signals, of male mice engaged in natural behaviors. Neuronal firing was robustly modulated by physical contact with male and female conspecifics, with individual neurons activated selectively by specific combinations of the sex and strain of conspecifics. We infer that mammals encode social and reproductive information by integrating vomeronasal sensory activity specific to sex and genetic makeup.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Luo, Minmin -- Fee, Michale S -- Katz, Lawrence C -- New York, N.Y. -- Science. 2003 Feb 21;299(5610):1196-201.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Howard Hughes Medical Institute and Department of Neurobiology, Duke University Medical Center, Durham, NC 27710, USA. luo@neuro.duke.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12595684" target="_blank"〉PubMed〈/a〉
    Keywords: Action Potentials ; Anal Canal ; Animals ; *Behavior, Animal ; Cues ; Electrodes, Implanted ; Face ; Female ; Genitalia ; Male ; Mice ; Mice, Inbred BALB C ; Mice, Inbred C57BL ; Mice, Inbred CBA ; Microelectrodes ; Mouth ; Neural Inhibition ; Neurons/*physiology ; Neurons, Afferent/*physiology ; Odors ; Olfactory Bulb/cytology/*physiology ; Olfactory Pathways ; Pheromones/*physiology ; Sex Characteristics ; Smell ; Species Specificity ; Vomeronasal Organ/cytology/*physiology
    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
    Publication Date: 2007-08-19
    Description: Carbon dioxide (CO2) is an important environmental cue for many organisms but is odorless to humans. It remains unclear whether the mammalian olfactory system can detect CO2 at concentrations around the average atmospheric level (0.038%). We demonstrated the expression of carbonic anhydrase type II (CAII), an enzyme that catabolizes CO2, in a subset of mouse olfactory neurons that express guanylyl cyclase D (GC-D+ neurons) and project axons to necklace glomeruli in the olfactory bulb. Exposure to CO2 activated these GC-D+ neurons, and exposure of a mouse to CO2 activated bulbar neurons associated with necklace glomeruli. Behavioral tests revealed CO2 detection thresholds of approximately 0.066%, and this sensitive CO2 detection required CAII activity. We conclude that mice detect CO2 at near-atmospheric concentrations through the olfactory subsystem of GC-D+ neurons.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Hu, Ji -- Zhong, Chun -- Ding, Cheng -- Chi, Qiuyi -- Walz, Andreas -- Mombaerts, Peter -- Matsunami, Hiroaki -- Luo, Minmin -- New York, N.Y. -- Science. 2007 Aug 17;317(5840):953-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉National Institute of Biological Sciences, Beijing, 102206, China.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17702944" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Carbon Dioxide/administration & dosage/*analysis/metabolism ; Carbonic Anhydrase II/antagonists & inhibitors/genetics/metabolism ; Cyclic GMP/metabolism ; Cyclic Nucleotide Phosphodiesterases, Type 2 ; Cyclic Nucleotide-Gated Cation Channels ; Gene Expression Profiling ; Guanylate Cyclase/metabolism ; Ion Channels/genetics/metabolism ; Mice ; Mice, Inbred BALB C ; Mice, Inbred C57BL ; Mutation ; Neurons/*physiology ; Odors ; Olfactory Bulb/cytology/enzymology/*physiology ; Olfactory Mucosa/cytology/enzymology ; Olfactory Receptor Neurons/enzymology/*physiology ; Phosphoric Diester Hydrolases/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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  • 4
    Publication Date: 2011-08-27
    Description: Whole genome comparisons identified introgression from archaic to modern humans. Our analysis of highly polymorphic human leukocyte antigen (HLA) class I, vital immune system components subject to strong balancing selection, shows how modern humans acquired the HLA-B*73 allele in west Asia through admixture with archaic humans called Denisovans, a likely sister group to the Neandertals. Virtual genotyping of Denisovan and Neandertal genomes identified archaic HLA haplotypes carrying functionally distinctive alleles that have introgressed into modern Eurasian and Oceanian populations. These alleles, of which several encode unique or strong ligands for natural killer cell receptors, now represent more than half the HLA alleles of modern Eurasians and also appear to have been later introduced into Africans. Thus, adaptive introgression of archaic alleles has significantly shaped modern human immune systems.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3677943/" 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/PMC3677943/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Abi-Rached, Laurent -- Jobin, Matthew J -- Kulkarni, Subhash -- McWhinnie, Alasdair -- Dalva, Klara -- Gragert, Loren -- Babrzadeh, Farbod -- Gharizadeh, Baback -- Luo, Ma -- Plummer, Francis A -- Kimani, Joshua -- Carrington, Mary -- Middleton, Derek -- Rajalingam, Raja -- Beksac, Meral -- Marsh, Steven G E -- Maiers, Martin -- Guethlein, Lisbeth A -- Tavoularis, Sofia -- Little, Ann-Margaret -- Green, Richard E -- Norman, Paul J -- Parham, Peter -- AI031168/AI/NIAID NIH HHS/ -- HHSN261200800001E/PHS HHS/ -- R01 AI031168/AI/NIAID NIH HHS/ -- RR000165/RR/NCRR NIH HHS/ -- Intramural NIH HHS/ -- New York, N.Y. -- Science. 2011 Oct 7;334(6052):89-94. doi: 10.1126/science.1209202. Epub 2011 Aug 25.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Structural Biology, Stanford University School of Medicine, Stanford, CA 94305, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21868630" target="_blank"〉PubMed〈/a〉
    Keywords: Adaptation, Biological ; African Continental Ancestry Group/genetics ; Alleles ; Animals ; Asian Continental Ancestry Group/genetics ; Continental Population Groups/*genetics ; European Continental Ancestry Group/genetics ; Evolution, Molecular ; *Genes, MHC Class I ; Genetic Variation ; HLA-A Antigens/*genetics/immunology/metabolism ; HLA-B Antigens/*genetics/immunology/metabolism ; HLA-C Antigens/*genetics/immunology ; Haplotypes ; Hominidae/*genetics/*immunology ; Humans ; *Hybridization, Genetic ; Killer Cells, Natural/immunology ; Ligands ; Linkage Disequilibrium ; Molecular Sequence Data ; Oceanic Ancestry Group/genetics ; Receptors, KIR/immunology/metabolism ; Selection, Genetic
    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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