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Sustained Effects of Neonatal Systemic Lipopolysaccharide on IL-1 beta and Nrf2 in Adult Rat Substantia Nigra Are Partly Normalized by a Spirulina-Enriched Diet
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- Patil, Jaspal (author)
- Gothenburg University,Göteborgs universitet,Institutionen för biomedicin, avdelningen för medicinsk kemi och cellbiologi,Institute of Biomedicine, Department of Medical Biochemistry and Cell Biology
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- Matte, Ashok (author)
- Gothenburg University,Göteborgs universitet,Institutionen för biomedicin, avdelningen för medicinsk kemi och cellbiologi,Institute of Biomedicine, Department of Medical Biochemistry and Cell Biology
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- Nissbrandt, Hans, 1952 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för neurovetenskap och fysiologi, sektionen för farmakologi,Institute of Neuroscience and Physiology, Department of Pharmacology
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- (creator_code:org_t)
- 2016-12-09
- 2016
- English.
- In: Neuroimmunomodulation. - : S. Karger AG. - 1021-7401 .- 1423-0216. ; 23:4, s. 250-259
- Journal article (peer-reviewed)
Abstract
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- Background/Aim: Neonatal infection can sensitize the adult substantia nigra (SN) to secondary insults, causing a decrease in antioxidant capacity which may lead to Parkinson's disease in adults. We studied the prolonged effect of systemic infection by (i.p.) administration of lipopolysaccharide (LPS) on interleukin (IL)-1 beta, the antioxidant regulator nuclear factor-erythroid 2-related factor 2 (Nrf2), and the peroxi-some proliferator-activated receptor gamma coactivator (PGC)-1 alpha in rat SN. Method and Results: Five-day-old rat pups were treated with LPS (i. p. 2 mg/kg). After 65 days, the mRNA level of IL-1 beta was significantly increased, in parallel with a decrease in that of the rate-limiting enzyme in glutathione synthesis, the gamma-glutamylcysteine ligase catalytic subunit (gamma GCLc), Nrf2, and brain-derived neurotrophic factor (BDNF). Protein levels of gamma GCLc and Nrf2 were decreased while IL-1 beta protein was significantly increased. These LPS-induced long-term changes correlated with a decrease in phosphorylated (active) AKT (pAKT) and phosphorylated (inactive) GSK-3 beta (pGSK-3 beta). In another set of experiments, a 0.1% Spirulina-containing diet was given to lactating mothers 24 h before the LPS treatment of the pups. The Spirulina-supplemented diet decreased IL-1 beta protein expression in SN and elevated the mRNA level of gamma GCLc, Nrf2 protein, PGC-1 alpha protein, and pAKT. Conclusion: Early-life infection can negatively affect Nrf2, pAKT, and pGSK-3 beta for a long time in SN. A diet en-riched with antioxidant and anti-inflammatory phytochemicals can partly restore some, but not all, of the effects on the antioxidant defense, possibly via normalizing effects on pAKT. (C) 2016 S. Karger AG, Basel
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Neurovetenskaper (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Neurosciences (hsv//eng)
Keyword
- Neuroinflammation
- Nrf2
- Antioxidant system
- Spirulina
- NRF2-INDUCIBLE ANTIOXIDANT DEFENSE
- NRF2-ENCODING NFE2L2 HAPLOTYPES
- MESSENGER-RNA EXPRESSION
- PARKINSONS-DISEASE
- MITOCHONDRIAL BIOGENESIS
- ALPHA-SYNUCLEIN
- P38 MAPK
- BDNF
- BRAIN
- NEUROPROTECTION
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- ref (subject category)
- art (subject category)
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