Effects of transient forebrain ischemia on the hippocampus of the Mongolian gerbil (Meriones unguiculatus): an immunohistochemical study. 2013

Toshiya Okada, and Yusuke Kataoka, and Ai Takeshita, and Masaki Mino, and Hiroshi Morioka, and Ken Takeshi Kusakabe, and Tomohiro Kondo
Department of Integrated Structural Biosciences, Division of Veterinary Science, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-58 Rinku Ourai Kita, Izumi-Sano, Osaka 598-8531, Japan. okada@vet.osakafu-u.ac.jp

In the Mongolian gerbil, bilateral common carotid artery occlusion (BCCAO) for several minutes induces ischemia and delayed neuronal cell death in the CA1 region of the hippocampus due to their incomplete Circle of Willis. In the present study, the expression of fibroblast growth factor 2 (FGF2), its receptors (FGFR1 and FGFR2), glial fibrillary acidic protein (GFAP), and isolectin B4 (ISLB4) was investigated by immunohistochemical and lectin-binding methods after BCCAO was performed for 5 min in gerbils. One day after BCCAO, the pyramidal cells of the CA1 region of the hippocampus showed degenerative changes and lowered expression of FGF2, FGFR1, and FGFR2. Three days after BCCAO, there was an increase in GFAP-positive astrocytes and ISLB4-positive microglial cells. From five to 10 days after BCCAO, intense neuronal cell death in the stria pyramidale of the hippocampal CA1 region was observed, as well as an increase in GFAP-positive astrocytes and decrease in ISLB4-positive microglial cells. These results indicate that transient forebrain ischemia induces neuronal cell death with lowered expression of FGF2 and its receptors, and that the activation of glial cells may not directly lead to neuronal cell death.

UI MeSH Term Description Entries
D007150 Immunohistochemistry Histochemical localization of immunoreactive substances using labeled antibodies as reagents. Immunocytochemistry,Immunogold Techniques,Immunogold-Silver Techniques,Immunohistocytochemistry,Immunolabeling Techniques,Immunogold Technics,Immunogold-Silver Technics,Immunolabeling Technics,Immunogold Silver Technics,Immunogold Silver Techniques,Immunogold Technic,Immunogold Technique,Immunogold-Silver Technic,Immunogold-Silver Technique,Immunolabeling Technic,Immunolabeling Technique,Technic, Immunogold,Technic, Immunogold-Silver,Technic, Immunolabeling,Technics, Immunogold,Technics, Immunogold-Silver,Technics, Immunolabeling,Technique, Immunogold,Technique, Immunogold-Silver,Technique, Immunolabeling,Techniques, Immunogold,Techniques, Immunogold-Silver,Techniques, Immunolabeling
D009474 Neurons The basic cellular units of nervous tissue. Each neuron consists of a body, an axon, and dendrites. Their purpose is to receive, conduct, and transmit impulses in the NERVOUS SYSTEM. Nerve Cells,Cell, Nerve,Cells, Nerve,Nerve Cell,Neuron
D005786 Gene Expression Regulation Any of the processes by which nuclear, cytoplasmic, or intercellular factors influence the differential control (induction or repression) of gene action at the level of transcription or translation. Gene Action Regulation,Regulation of Gene Expression,Expression Regulation, Gene,Regulation, Gene Action,Regulation, Gene Expression
D005849 Gerbillinae A subfamily of the Muridae consisting of several genera including Gerbillus, Rhombomys, Tatera, Meriones, and Psammomys. Gerbils,Jird,Meriones,Psammomys,Rats, Sand,Gerbil,Jirds,Merione,Rat, Sand,Sand Rat,Sand Rats
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D015427 Reperfusion Injury Adverse functional, metabolic, or structural changes in tissues that result from the restoration of blood flow to the tissue (REPERFUSION) following ISCHEMIA. Ischemia-Reperfusion Injury,Injury, Ischemia-Reperfusion,Injury, Reperfusion,Reperfusion Damage,Damage, Reperfusion,Injury, Ischemia Reperfusion,Ischemia Reperfusion Injury,Ischemia-Reperfusion Injuries,Reperfusion Damages,Reperfusion Injuries
D016548 Prosencephalon The anterior of the three primitive cerebral vesicles of the embryonic brain arising from the NEURAL TUBE. It subdivides to form DIENCEPHALON and TELENCEPHALON. (Stedmans Medical Dictionary, 27th ed) Forebrain,Forebrains
D016923 Cell Death The termination of the cell's ability to carry out vital functions such as metabolism, growth, reproduction, responsiveness, and adaptability. Death, Cell
D017628 Microglia The third type of glial cell, along with astrocytes and oligodendrocytes (which together form the macroglia). Microglia vary in appearance depending on developmental stage, functional state, and anatomical location; subtype terms include ramified, perivascular, ameboid, resting, and activated. Microglia clearly are capable of phagocytosis and play an important role in a wide spectrum of neuropathologies. They have also been suggested to act in several other roles including in secretion (e.g., of cytokines and neural growth factors), in immunological processing (e.g., antigen presentation), and in central nervous system development and remodeling. Microglial Cell,Cell, Microglial,Microglial Cells,Microglias
D056547 CA1 Region, Hippocampal One of four subsections of the hippocampus described by Lorente de No, located furthest from the DENTATE GYRUS. CA1 Field of Hippocampus,CA1 Pyramidal Cell Area,CA1 Pyramidal Cell Layer,CA1 Stratum Pyramidale,CA1 Stratum Radiatum,Cornu Ammonis 1 Area,Hippocampal Sector CA1,Hippocampus CA1 Field,Regio Superior of Hippocampus,Stratum Radiatum, CA1,CA1 Field, Hippocampus,CA1 Stratum Radiatums,CA1, Hippocampal Sector,Field, Hippocampus CA1,Hippocampal CA1 Region,Hippocampus Regio Superior,Radiatum, CA1 Stratum,Radiatums, CA1 Stratum,Region, Hippocampal CA1,Sector CA1, Hippocampal,Stratum Pyramidale, CA1,Stratum Radiatums, CA1

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