Sökning: WFRF:(Åberg Peter) > Peripheral infusion...
Fältnamn | Indikatorer | Metadata |
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000 | 04673naa a2200541 4500 | |
001 | oai:gup.ub.gu.se/110237 | |
003 | SwePub | |
008 | 240910s2000 | |||||||||||000 ||eng| | |
024 | 7 | a https://gup.ub.gu.se/publication/1102372 URI |
040 | a (SwePub)gu | |
041 | a eng | |
042 | 9 SwePub | |
072 | 7 | a ref2 swepub-contenttype |
072 | 7 | a art2 swepub-publicationtype |
100 | 1 | a Åberg, Maria A I,d 1972u Gothenburg University,Göteborgs universitet,Institutionen för klinisk neurovetenskap, Sektionen för laborativ neurovetenskap,Institute of Clinical Neurosciences, Section of Experimental Neuroscience4 aut0 (Swepub:gu)xaberm |
245 | 1 0 | a Peripheral infusion of IGF-I selectively induces neurogenesis in the adult rat hippocampus. |
264 | 1 | c 2000 |
520 | a In several species, including humans, the dentate granule cell layer (GCL) of the hippocampus exhibits neurogenesis throughout adult life. The ability to regulate adult neurogenesis pharmacologically may be of therapeutic value as a mechanism for replacing lost neurons. Insulin-like growth factor-I (IGF-I) is a growth-promoting peptide hormone that has been shown to have neurotrophic properties. The relationship between IGF-I and adult hippocampal neurogenesis is to date unknown. The aim of this study was to investigate the effect of the peripheral administration of IGF-I on cellular proliferation in the dentate subgranular proliferative zone, which contains neuronal progenitor cells, and on the subsequent migration and differentiation of progenitor cells within the GCL. Using bromodeoxyuridine (BrdU) labeling, we found a significant increase of BrdU-immunoreactive progenitors in the GCL after 6 d of peripheral IGF-I administration. To determine the cell fate in progenitor progeny, we characterized the colocalization of BrdU-immunolabeled cells with cell-specific markers. In animals treated with IGF-I for 20 d, BrdU-positive cells increased significantly. Furthermore, the fraction of newly generated neurons in the GCL increased, as evaluated by the neuronal markers Calbindin D(28K), microtubule-associated protein-2, and NeuN. There was no difference in the fraction of newly generated astrocytes. Thus, our results show that peripheral infusion of IGF-I increases progenitor cell proliferation and selectively induces neurogenesis in the progeny of adult neural progenitor cells. This corresponds to a 78 +/- 17% (p < 0.001) increase in the number of new neurons in IGF-I-treated animals compared with controls. | |
650 | 7 | a MEDICIN OCH HÄLSOVETENSKAPx Klinisk medicinx Neurologi0 (SwePub)302072 hsv//swe |
650 | 7 | a MEDICAL AND HEALTH SCIENCESx Clinical Medicinex Neurology0 (SwePub)302072 hsv//eng |
650 | 7 | a MEDICIN OCH HÄLSOVETENSKAPx Klinisk medicinx Endokrinologi och diabetes0 (SwePub)302052 hsv//swe |
650 | 7 | a MEDICAL AND HEALTH SCIENCESx Clinical Medicinex Endocrinology and Diabetes0 (SwePub)302052 hsv//eng |
653 | a Animals | |
653 | a Bromodeoxyuridine | |
653 | a metabolism | |
653 | a Dentate Gyrus | |
653 | a cytology | |
653 | a drug effects | |
653 | a Female | |
653 | a Hippocampus | |
653 | a cytology | |
653 | a drug effects | |
653 | a metabolism | |
653 | a Hypophysectomy | |
653 | a Insulin-Like Growth Factor I | |
653 | a pharmacology | |
653 | a Male | |
653 | a Rats | |
653 | a Stem Cells | |
653 | a drug effects | |
653 | a metabolism | |
700 | 1 | a Åberg, N David,d 1970u Gothenburg University,Göteborgs universitet,Institutionen för klinisk neurovetenskap, Sektionen för laborativ neurovetenskap,Institute of Clinical Neurosciences, Section of Experimental Neuroscience4 aut0 (Swepub:gu)xabeda |
700 | 1 | a Hedbäcker, Helenau Gothenburg University,Göteborgs universitet,Institutionen för klinisk neurovetenskap, Sektionen för laborativ neurovetenskap,Institute of Clinical Neurosciences, Section of Experimental Neuroscience4 aut |
700 | 1 | a Oscarsson, Jan,d 1960u Gothenburg University,Göteborgs universitet,Institutionen för fysiologi och farmakologi,Institute of Physiology and Pharmacology4 aut0 (Swepub:gu)xoscja |
700 | 1 | a Eriksson, Peter S,d 1959u Gothenburg University,Göteborgs universitet,Institutionen för klinisk neurovetenskap,Institute of Clinical Neurosciences4 aut0 (Swepub:gu)xerikp |
710 | 2 | a Göteborgs universitetb Institutionen för klinisk neurovetenskap, Sektionen för laborativ neurovetenskap4 org |
773 | 0 | t The Journal of neuroscience : the official journal of the Society for Neuroscienceg 20:8, s. 2896-903q 20:8<2896-903x 1529-2401 |
856 | 4 8 | u https://gup.ub.gu.se/publication/110237 |
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