Previous reports on dorsal and ventral hippocampal regulation of context learning versus anxiety have been mixed. In this issue of Neuron, a new study by Kheirbek et al. (2013) using optogenetics demonstrates that dentate gyrus granule cell activity in dorsal hippocampus encodes contextual fear learning while ventral granule cell activity regulates anxiety behavior.
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http://dx.doi.org/10.1016/j.neuron.2013.02.017 | DOI Listing |
Cell Mol Life Sci
December 2024
Cellular and Molecular Neurobiology, Technische Universität Braunschweig, 38106, Braunschweig, Germany.
The cerebellum is a highly conserved brain compartment of vertebrates. Genetic diseases of the human cerebellum often lead to degeneration of the principal neuron, the Purkinje cell, resulting in locomotive deficits and socio-emotional impairments. Due to its relatively simple but highly conserved neuroanatomy and circuitry, these human diseases can be modeled well in vertebrates amenable for genetic manipulation.
View Article and Find Full Text PDFNan Fang Yi Ke Da Xue Xue Bao
December 2024
Department of Rheumatology and Immunology, First Affiliated Hospital of Anhui University of Traditional Chinese Medicine, Hefei 230031, China.
Objectives: To explore the mechanism of Granules (QJZG) for improving thrombocytopenia in a mouse model of systemic lupus erythematosus (SLE).
Methods: Twenty-four MRL/lpr lupus mice were randomized equally into 4 groups for treatment with daily gavage of saline, QJZG or prednisone (Pred) or intraperitoneal injection (twice a week) of CaMKK2 activator, with 6 C57BL/6 mice with saline gavage as the control group. After 8 weeks of treatment, the mice were examined for PLT, PCT, PDW, MPV, serum levels of TPO, IL-6, IL-10, TNF-α and IFN-γ, and calcium ion fluorescence intensity using ELISA or flow-through assay.
J Neurosci
December 2024
Department of Neuroscience, Baylor College of Medicine, Houston, TX, USA
Excitatory synapses and the actin-rich dendritic spines on which they reside are indispensable for information processing and storage in the brain. In the adult hippocampus, excitatory synapses must balance plasticity and stability to support learning and memory. However, the mechanisms governing this balance remain poorly understood.
View Article and Find Full Text PDFFEMS Microbiol Lett
December 2024
K.A. Timiryazev Institute of Plant Physiology of the Russian Academy of Sciences, Botanicheskaya St. 35, Moscow 127276, Russian Federation.
A new filamentous phototrophic bacterium Khr17 was isolated as an enrichment culture from the brackish polar lake Bol'shie Khruslomeny. The organism was a halotolerant, strictly anaerobic phototroph possessing photosystem II. Sulfide was required for phototrophic growth.
View Article and Find Full Text PDFExp Parasitol
December 2024
Romero Lascasas Porto Laboratory of Helminthology, Department of Microbiology, Immunology and Parasitology, Medical Sciences College (FCM), Rio de Janeiro State University (UERJ), Rio de Janeiro, Brazil.
It is not well understood how type 1 diabetes (T1D) and concomitant acute schistosomiasis mansoni affect pancreatic architecture. Male Swiss mice were administered streptozotocin (single 100 mg/kg i.p.
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