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Irradiation to the ...
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Zhu, Changlian,1964Gothenburg University,Göteborgs universitet,Institutionen för neurovetenskap och fysiologi, sektionen för klinisk neurovetenskap och rehabilitering,Institute of Neuroscience and Physiology, Department of Clinical Neuroscience and Rehabilitation
(author)
Irradiation to the immature brain attenuates neurogenesis and exacerbates subsequent hypoxic-ischemic brain injury in the adult.
- Article/chapterEnglish2009
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LIBRIS-ID:oai:gup.ub.gu.se/100165
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https://gup.ub.gu.se/publication/100165URI
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https://doi.org/10.1111/j.1471-4159.2009.06413.xDOI
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
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Abstract Cranial radiotherapy is common in pediatric oncology. Our purpose was to investigate if irradiation (IR) to the immature brain would increase the susceptibility to hypoxic- ischemic injury in adulthood. The left hemisphere of postnatal day 10 (P10) mice was irradiated with 8 Gy and subjected to hypoxia-ischemia (HI) on P60. Brain injury, neurogenesis and inflammation were evaluated 30 days after HI. IR alone caused significant hemispheric tissue loss, or lack of growth (2.8 +/- 0.42 mm(3), p<0.001). Tissue loss after HI (18.2 +/- 5.8 mm(3), p<0.05) was synergistically increased if preceded by IR (32.0 +/- 3.5 mm(3), p<0.05). Infarct volume (5.1 +/- 1.6 mm(3)) nearly doubled if HI was preceded by IR (9.8 +/- 1.2 mm(3), p<0.05). Pathological scoring revealed that IR aggravated hippocampal, cortical and striatal, but not thalamic, injury. Hippocampal neurogenesis decreased >50% after IR but was unchanged by HI alone. The number of newly formed microglia was three times higher after IR+HI than after HI alone. In summary, IR to the immature brain produced long-lasting changes, including decreased hippocampal neurogenesis, subsequently rendering the adult brain more susceptible to HI, resulting in larger infarcts, increased hemispheric tissue loss and more inflammation than in non-irradiated brains.
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Huang, ZhihengGothenburg University,Göteborgs universitet,Institutionen för neurovetenskap och fysiologi, sektionen för klinisk neurovetenskap och rehabilitering,Institute of Neuroscience and Physiology, Department of Clinical Neuroscience and Rehabilitation
(author)
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Gao, JianfengGothenburg University,Göteborgs universitet,Institutionen för neurovetenskap och fysiologi, sektionen för klinisk neurovetenskap och rehabilitering,Institute of Neuroscience and Physiology, Department of Clinical Neuroscience and Rehabilitation
(author)
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Zhang, YuGothenburg University,Göteborgs universitet,Institutionen för neurovetenskap och fysiologi, sektionen för klinisk neurovetenskap och rehabilitering,Institute of Neuroscience and Physiology, Department of Clinical Neuroscience and Rehabilitation
(author)
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Wang, Xiaoyang,1965Gothenburg University,Göteborgs universitet,Institutionen för neurovetenskap och fysiologi, sektionen för klinisk neurovetenskap och rehabilitering,Institute of Neuroscience and Physiology, Department of Clinical Neuroscience and Rehabilitation(Swepub:gu)xwanxi
(author)
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Karlsson, NiklasGothenburg University,Göteborgs universitet,Institutionen för neurovetenskap och fysiologi, sektionen för klinisk neurovetenskap och rehabilitering,Institute of Neuroscience and Physiology, Department of Clinical Neuroscience and Rehabilitation(Swepub:gu)xkarni
(author)
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Björk-Eriksson, Thomas,1960Gothenburg University,Göteborgs universitet,Institutionen för kliniska vetenskaper,Institute of Clinical Sciences(Swepub:gu)xbjoth
(author)
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Li, Qian,1983Gothenburg University,Göteborgs universitet,Institutionen för neurovetenskap och fysiologi, sektionen för klinisk neurovetenskap och rehabilitering,Institute of Neuroscience and Physiology, Department of Clinical Neuroscience and Rehabilitation(Swepub:gu)xliqit
(author)
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Lannering, Birgitta,1948Gothenburg University,Göteborgs universitet,Institutionen för kliniska vetenskaper, Avdelningen för pediatrik,Institute of Clinical Sciences, Department of Pediatrics(Swepub:gu)xlabir
(author)
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Kuhn, Hans-Georg,1961Gothenburg University,Göteborgs universitet,Institutionen för neurovetenskap och fysiologi, sektionen för klinisk neurovetenskap och rehabilitering,Institute of Neuroscience and Physiology, Department of Clinical Neuroscience and Rehabilitation(Swepub:gu)xkuhha
(author)
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Blomgren, Klas,1963Gothenburg University,Göteborgs universitet,Institutionen för neurovetenskap och fysiologi, sektionen för klinisk neurovetenskap och rehabilitering,Institute of Neuroscience and Physiology, Department of Clinical Neuroscience and Rehabilitation(Swepub:gu)xblokl
(author)
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Göteborgs universitetInstitutionen för neurovetenskap och fysiologi, sektionen för klinisk neurovetenskap och rehabilitering
(creator_code:org_t)
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In:Journal of neurochemistry: Wiley111:6, s. 1447-14561471-41590022-3042
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