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Erschienen in: Journal of Inherited Metabolic Disease 5/2013

01.09.2013 | Original Article

Chronic administration of branched-chain amino acids impairs spatial memory and increases brain-derived neurotrophic factor in a rat model

verfasst von: Giselli Scaini, Clarissa M. Comim, Giovanna M. T. Oliveira, Matheus A. B. Pasquali, João Quevedo, Daniel P. Gelain, José Cláudio F. Moreira, Patrícia F. Schuck, Gustavo C. Ferreira, Maurício R. Bogo, Emilio L. Streck

Erschienen in: Journal of Inherited Metabolic Disease | Ausgabe 5/2013

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Abstract

Maple syrup urine disease (MSUD) is a neurometabolic disorder that leads to the accumulation of branched-chain amino acids (BCAAs) and their α-keto branched-chain by-products. Because the neurotoxic mechanisms of MSUD are poorly understood, this study aimed to evaluate the effects of chronic administration of a BCAA pool (leucine, isoleucine and valine). This study examined the effects of BCAA administration on spatial memory and the levels of brain-derived neurotrophic factor (BNDF). We examined both pro-BDNF and bdnf mRNA expression levels after administration of BCAAs. Furthermore, this study examined whether antioxidant treatment prevented the alterations induced by BCAA administration. Our results demonstrated an increase in BDNF in the hippocampus and cerebral cortex, accompanied by memory impairment in spatial memory tasks. Additionally, chronic administration of BCAAs did not induce a detectable change in pro-BDNF levels. Treatment with N-acetylcysteine and deferoxamine prevented both the memory deficit and the increase in the BDNF levels induced by BCAA administration. In conclusion, these results suggest that when the brain is chronically exposed to high concentrations of BCAA (at millimolar concentrations) an increase in BDNF levels occurs. This increase in BDNF may be related to the impairment of spatial memory. In addition, we demonstrated that antioxidant treatment prevented the negative consequences related to BCAA administration, suggesting that oxidative stress might be involved in the pathophysiological mechanism(s) underlying the brain damage observed in MSUD.
Literatur
Zurück zum Zitat Bekinschtein P, Cammarota M, Izquierdo I, Medina JH (2007) BDNF and memory formation and storage. Neuroscientist 14:147–156CrossRefPubMed Bekinschtein P, Cammarota M, Izquierdo I, Medina JH (2007) BDNF and memory formation and storage. Neuroscientist 14:147–156CrossRefPubMed
Zurück zum Zitat Bekinschtein P, Cammarota M, Katche C et al (2008) BDNF is essential to promote persistence of long-term memory storage. Proc Natl Acad Sci U S A 105:2711–2716CrossRefPubMedPubMedCentral Bekinschtein P, Cammarota M, Katche C et al (2008) BDNF is essential to promote persistence of long-term memory storage. Proc Natl Acad Sci U S A 105:2711–2716CrossRefPubMedPubMedCentral
Zurück zum Zitat Bonhoeffer T (1996) Neurotrophins and activity-dependent development of the neocortex. Curr Opin Neurobiol 6:119–126CrossRefPubMed Bonhoeffer T (1996) Neurotrophins and activity-dependent development of the neocortex. Curr Opin Neurobiol 6:119–126CrossRefPubMed
Zurück zum Zitat Boyd JG, Gordon T (2002) A dose-dependent facilitation and inhibition of peripheral nerve regeneration by brain-derived neurotrophic factor. Eur J Neurosci 15:613–626CrossRefPubMed Boyd JG, Gordon T (2002) A dose-dependent facilitation and inhibition of peripheral nerve regeneration by brain-derived neurotrophic factor. Eur J Neurosci 15:613–626CrossRefPubMed
Zurück zum Zitat Bridi R, Araldi J, Sgarbi MB et al (2003) Induction of oxidative stress in rat brain by the metabolites accumulating in maple syrup urine disease. Int J Dev Neurosci 21:327–332CrossRefPubMed Bridi R, Araldi J, Sgarbi MB et al (2003) Induction of oxidative stress in rat brain by the metabolites accumulating in maple syrup urine disease. Int J Dev Neurosci 21:327–332CrossRefPubMed
Zurück zum Zitat Bridi R, Latini A, Braun CA (2005) Evaluation of the mechanisms involved in leucine induced oxidative damage in cerebral cortex of young rats. Free Radic Res 39:71–79CrossRefPubMed Bridi R, Latini A, Braun CA (2005) Evaluation of the mechanisms involved in leucine induced oxidative damage in cerebral cortex of young rats. Free Radic Res 39:71–79CrossRefPubMed
Zurück zum Zitat Bridi R, Fontella FU, Pulrolnik V et al (2006) A chemically-induced acute model of maple syrup urine disease in rats for neurochemical studies. J Neurosci Methods 155:224–230CrossRefPubMed Bridi R, Fontella FU, Pulrolnik V et al (2006) A chemically-induced acute model of maple syrup urine disease in rats for neurochemical studies. J Neurosci Methods 155:224–230CrossRefPubMed
Zurück zum Zitat Brown RE, Corey SC, Moore AK (1999) Differences in measures of exploration and fear in MHC-congenic C57BL/6J and B6-H-2K mice. Behav Genet 26:263–271CrossRef Brown RE, Corey SC, Moore AK (1999) Differences in measures of exploration and fear in MHC-congenic C57BL/6J and B6-H-2K mice. Behav Genet 26:263–271CrossRef
Zurück zum Zitat Castellano S, Macchi F, Scali M, Huang JZ, Bozzi Y (2006) Cytosolic branched chain aminotransferase (BCATc) mRNA is up-regulated in restricted brain areas of BDNF transgenic mice. Brain Res 1108:12–18CrossRefPubMed Castellano S, Macchi F, Scali M, Huang JZ, Bozzi Y (2006) Cytosolic branched chain aminotransferase (BCATc) mRNA is up-regulated in restricted brain areas of BDNF transgenic mice. Brain Res 1108:12–18CrossRefPubMed
Zurück zum Zitat Chuang DT, Shih VE (2001) Maple syrup urine disease (branchedchain ketoaciduria). In: Scriver CR, Beaudet AL, Sly WS, Valle D (eds) The metabolic and molecular bases of inherited disease. McGraw-Hill, New York, pp 1971–2005 Chuang DT, Shih VE (2001) Maple syrup urine disease (branchedchain ketoaciduria). In: Scriver CR, Beaudet AL, Sly WS, Valle D (eds) The metabolic and molecular bases of inherited disease. McGraw-Hill, New York, pp 1971–2005
Zurück zum Zitat Croll SD, Suri C, Compton DL (1999) Brain-derived neurotrophic factor transgenic mice exhibit passive avoidance deficits, increased seizure severity and in vitro hyperexcitability in the hippocampus and entorhinal cortex. Neuroscience 93:1491–1506CrossRefPubMedPubMedCentral Croll SD, Suri C, Compton DL (1999) Brain-derived neurotrophic factor transgenic mice exhibit passive avoidance deficits, increased seizure severity and in vitro hyperexcitability in the hippocampus and entorhinal cortex. Neuroscience 93:1491–1506CrossRefPubMedPubMedCentral
Zurück zum Zitat Cunha C, Angelucci A, D’Antoni A (2009) Brain-derived neurotrophic factor (BDNF) overexpression in the forebrain results in learning and memory impairments. Neurobiol Dis 33:358–368CrossRefPubMed Cunha C, Angelucci A, D’Antoni A (2009) Brain-derived neurotrophic factor (BDNF) overexpression in the forebrain results in learning and memory impairments. Neurobiol Dis 33:358–368CrossRefPubMed
Zurück zum Zitat da Silva RS, Richetti SK, da Silveira VG (2008) Maternal caffeine intake affects acetylcholinesterase in hippocampus of neonate rats. Int J Dev Neurosci 26:339–343CrossRefPubMed da Silva RS, Richetti SK, da Silveira VG (2008) Maternal caffeine intake affects acetylcholinesterase in hippocampus of neonate rats. Int J Dev Neurosci 26:339–343CrossRefPubMed
Zurück zum Zitat Danner DJ, Elsas LJ (1989) Disorders of branched chain amino acid and keto acid metabolism. In: Scriver CR, Beaudet AL, Sly WS, Valle D (eds) The metabolic basis of inherited disease. McGraw-Hill, New York, pp 671–692 Danner DJ, Elsas LJ (1989) Disorders of branched chain amino acid and keto acid metabolism. In: Scriver CR, Beaudet AL, Sly WS, Valle D (eds) The metabolic basis of inherited disease. McGraw-Hill, New York, pp 671–692
Zurück zum Zitat Di-Pietro PB, Dias ML, Scaini G (2008) Inhibition of brain creatine kinase activity after renal ischemia is attenuated by N-acetylcysteine and deferoxamine administration. Neurosci Lett 434:139–143CrossRefPubMed Di-Pietro PB, Dias ML, Scaini G (2008) Inhibition of brain creatine kinase activity after renal ischemia is attenuated by N-acetylcysteine and deferoxamine administration. Neurosci Lett 434:139–143CrossRefPubMed
Zurück zum Zitat Figurov A, Pozzo-Miller LD, Olafsson P, Wang T, Lu B (1996) Regulation of synaptic responses to high-frequency stimulation and LTP by neurotrophins in the hippocampus. Nature 381:706–709CrossRefPubMed Figurov A, Pozzo-Miller LD, Olafsson P, Wang T, Lu B (1996) Regulation of synaptic responses to high-frequency stimulation and LTP by neurotrophins in the hippocampus. Nature 381:706–709CrossRefPubMed
Zurück zum Zitat Fontella FU, Gassen E, Pulrolni V (2002) Stimulation of lipid peroxidation in vitro in rat brain by the metabolites accumulating in maple syrup urine disease. Metab Brain Dis 17:47–54CrossRefPubMed Fontella FU, Gassen E, Pulrolni V (2002) Stimulation of lipid peroxidation in vitro in rat brain by the metabolites accumulating in maple syrup urine disease. Metab Brain Dis 17:47–54CrossRefPubMed
Zurück zum Zitat Glaser V, Carlini VP, Gabach L (2010) The intra-hippocampal leucine administration impairs memory consolidation and LTP generation in rats. Cell Mol Neurobiol 30:1067–1075CrossRefPubMed Glaser V, Carlini VP, Gabach L (2010) The intra-hippocampal leucine administration impairs memory consolidation and LTP generation in rats. Cell Mol Neurobiol 30:1067–1075CrossRefPubMed
Zurück zum Zitat Gwag BJ, Koh JY, Chen MM (1995) BDNF or IGF-I potentiates free radical-mediated injury in cortical cell cultures. Neuroreport 7:93–96CrossRefPubMed Gwag BJ, Koh JY, Chen MM (1995) BDNF or IGF-I potentiates free radical-mediated injury in cortical cell cultures. Neuroreport 7:93–96CrossRefPubMed
Zurück zum Zitat Haddad JJ, Land SC (2002) Redox/ROS regulation of lipopolysaccharide-induced mitogen-activated protein kinase (MAPK) activation and MAPK-mediated TNF-alpha biosynthesis. Br J Pharmacol 135:520–536CrossRefPubMedPubMedCentral Haddad JJ, Land SC (2002) Redox/ROS regulation of lipopolysaccharide-induced mitogen-activated protein kinase (MAPK) activation and MAPK-mediated TNF-alpha biosynthesis. Br J Pharmacol 135:520–536CrossRefPubMedPubMedCentral
Zurück zum Zitat Howell RK, Lee M (1963) Influence of a-keto acids on the respiration of brain in vitro. Proc Soc Exp Biol Med 113:660–663CrossRefPubMed Howell RK, Lee M (1963) Influence of a-keto acids on the respiration of brain in vitro. Proc Soc Exp Biol Med 113:660–663CrossRefPubMed
Zurück zum Zitat Huang EJ, Reichardt LF (2003) Trk receptors: roles in neuronal signal transduction. Annu Rev Biochem 72:609–642CrossRefPubMed Huang EJ, Reichardt LF (2003) Trk receptors: roles in neuronal signal transduction. Annu Rev Biochem 72:609–642CrossRefPubMed
Zurück zum Zitat Ishikawa Y, Ikeuchi T, Hatanaka H (2000) Brain-derived neurotrophic factor accelerates nitric oxide donor-induced apoptosis of cultured cortical neurons. J Neurochem 75:494–502CrossRefPubMed Ishikawa Y, Ikeuchi T, Hatanaka H (2000) Brain-derived neurotrophic factor accelerates nitric oxide donor-induced apoptosis of cultured cortical neurons. J Neurochem 75:494–502CrossRefPubMed
Zurück zum Zitat Jouvet J, Rustin P, Taylor DL (2000) Branched chain amino acids induce apoptosis in neural cells without mitochondrial membrane depolarization or cytochrome c release: Implications for neurological impairment associated with maple syrup urine disease. Mol Biol Cell 11:1919–1932CrossRefPubMedPubMedCentral Jouvet J, Rustin P, Taylor DL (2000) Branched chain amino acids induce apoptosis in neural cells without mitochondrial membrane depolarization or cytochrome c release: Implications for neurological impairment associated with maple syrup urine disease. Mol Biol Cell 11:1919–1932CrossRefPubMedPubMedCentral
Zurück zum Zitat Kim SH, Won SJ, Sohn S, Kwon HJ, Lee JY, Park JH, Gwag BJ (2002) Brain-derived neurotrophic factor can act as a pronecrotic factor through transcriptional and translational activation of NADPH oxidase. J Cell Biol 159821–159831 Kim SH, Won SJ, Sohn S, Kwon HJ, Lee JY, Park JH, Gwag BJ (2002) Brain-derived neurotrophic factor can act as a pronecrotic factor through transcriptional and translational activation of NADPH oxidase. J Cell Biol 159821–159831
Zurück zum Zitat Koh JY, Gwag BJ, Lobner D, Choi DW (1995) Potentiated necrosis of cultured cortical neurons by neurotrophins. Science 268:573–575CrossRefPubMed Koh JY, Gwag BJ, Lobner D, Choi DW (1995) Potentiated necrosis of cultured cortical neurons by neurotrophins. Science 268:573–575CrossRefPubMed
Zurück zum Zitat Korte M, Carroll P, Wolf E, Brem G, Thoenen H, Bonhoeffer T (1995) Hippocampal long-term potentiation is impaired in mice lacking brainderived neurotrophic factor. Proc Natl Acad Sci U S A 92:8856–8860CrossRefPubMedPubMedCentral Korte M, Carroll P, Wolf E, Brem G, Thoenen H, Bonhoeffer T (1995) Hippocampal long-term potentiation is impaired in mice lacking brainderived neurotrophic factor. Proc Natl Acad Sci U S A 92:8856–8860CrossRefPubMedPubMedCentral
Zurück zum Zitat Kubo T, Nonomura T, Enokido Y, Hatanaka H (1995) Brainderived neurotrophic factor (BDNF) can prevent apoptosis of rat cerebellar granule neurons in culture. Brain Res Dev Brain Res 85:249–258CrossRefPubMed Kubo T, Nonomura T, Enokido Y, Hatanaka H (1995) Brainderived neurotrophic factor (BDNF) can prevent apoptosis of rat cerebellar granule neurons in culture. Brain Res Dev Brain Res 85:249–258CrossRefPubMed
Zurück zum Zitat Land JM, Mowbray J, Clark JB (1976) Control of pyruvate and h-hydroxybutyrate utilization in rat brain mitochondria and its relevance to phenylketonuria and maple syrup urine disease. J Neurochem 26:823–830CrossRefPubMed Land JM, Mowbray J, Clark JB (1976) Control of pyruvate and h-hydroxybutyrate utilization in rat brain mitochondria and its relevance to phenylketonuria and maple syrup urine disease. J Neurochem 26:823–830CrossRefPubMed
Zurück zum Zitat Lee R, Kermani P, Teng KK, Hempstead BL (2001) Regulation of cell survival by secreted proneurotrophins. Science 294:1945–1948CrossRefPubMed Lee R, Kermani P, Teng KK, Hempstead BL (2001) Regulation of cell survival by secreted proneurotrophins. Science 294:1945–1948CrossRefPubMed
Zurück zum Zitat Lowry OH, Rosebough NG, Farr AL, Randall RJ (1951) Protein measurement with the Folin phenol reagent. J Chem Biol 193:265–275 Lowry OH, Rosebough NG, Farr AL, Randall RJ (1951) Protein measurement with the Folin phenol reagent. J Chem Biol 193:265–275
Zurück zum Zitat Lu B, Pang PT, Woo NH (2005) The yin and yang of neurotrophin action. Nat Rev Neurosci 6:603–614CrossRefPubMed Lu B, Pang PT, Woo NH (2005) The yin and yang of neurotrophin action. Nat Rev Neurosci 6:603–614CrossRefPubMed
Zurück zum Zitat Lu Y, Christian K, Lu B (2008) BDNF: a key regulator for protein synthesis-dependent LTP and longterm memory? Neurobiol Learn Mem 89:312–323CrossRefPubMed Lu Y, Christian K, Lu B (2008) BDNF: a key regulator for protein synthesis-dependent LTP and longterm memory? Neurobiol Learn Mem 89:312–323CrossRefPubMed
Zurück zum Zitat Mackenzie DY, Woolf LI (1959) Maple syrup urine disease; an inborn error of the metabolism of valine, leucine, and isoleucine associated with gross mental deficiency. Br Med J 1:90–91CrossRefPubMedPubMedCentral Mackenzie DY, Woolf LI (1959) Maple syrup urine disease; an inborn error of the metabolism of valine, leucine, and isoleucine associated with gross mental deficiency. Br Med J 1:90–91CrossRefPubMedPubMedCentral
Zurück zum Zitat Mello CF, Feksa L, Brusque AM, Wannmacher CM, Wajner M (1999) Chronic early leucine administration induces behavioral deficits in rats. Life Sci 65:747–755CrossRefPubMed Mello CF, Feksa L, Brusque AM, Wannmacher CM, Wajner M (1999) Chronic early leucine administration induces behavioral deficits in rats. Life Sci 65:747–755CrossRefPubMed
Zurück zum Zitat Mescka C, Moraes T, Rosa A (2011) In vivo neuroprotective effect of L-carnitine against oxidative stress in maple syrup urine disease. Metab Brain Dis 26:21–28CrossRefPubMed Mescka C, Moraes T, Rosa A (2011) In vivo neuroprotective effect of L-carnitine against oxidative stress in maple syrup urine disease. Metab Brain Dis 26:21–28CrossRefPubMed
Zurück zum Zitat Nitta A, Nishioka H, Fukumitsu H (2004) Hydrophobic dipeptide LeueIle protects against neuronal death by inducing brain-derived neurotrophic factor and glial cell line-derived neurotrophic factor synthesis. J Neurosci Res 78:250–258CrossRefPubMed Nitta A, Nishioka H, Fukumitsu H (2004) Hydrophobic dipeptide LeueIle protects against neuronal death by inducing brain-derived neurotrophic factor and glial cell line-derived neurotrophic factor synthesis. J Neurosci Res 78:250–258CrossRefPubMed
Zurück zum Zitat Nonomura T, Kubo T, Oka T (1996) Signaling pathways and survival effects of BDNF and NT-3 on cultured cerebellar granule cells. Brain Res Dev Brain Res 97:42–50CrossRefPubMed Nonomura T, Kubo T, Oka T (1996) Signaling pathways and survival effects of BDNF and NT-3 on cultured cerebellar granule cells. Brain Res Dev Brain Res 97:42–50CrossRefPubMed
Zurück zum Zitat Patterson SL, Abel T, Deuel TA, Martin KC, Rose JC, Kandel ER (1996) Recombinant BDNF rescues deficits in basal synaptic transmission and hippocampal LTP in BDNF knockout mice. Neuron 16:1137–1145CrossRefPubMed Patterson SL, Abel T, Deuel TA, Martin KC, Rose JC, Kandel ER (1996) Recombinant BDNF rescues deficits in basal synaptic transmission and hippocampal LTP in BDNF knockout mice. Neuron 16:1137–1145CrossRefPubMed
Zurück zum Zitat Pilla C, Cardozo RF, Dutra-Filho CS, Wyse AT, Wajner M, Wannmacher CM (2003) Creatine kinase activity from rat brain is inhibited by branched-chain amino acids in vitro. Neurochem Res 28:675–679CrossRefPubMed Pilla C, Cardozo RF, Dutra-Filho CS, Wyse AT, Wajner M, Wannmacher CM (2003) Creatine kinase activity from rat brain is inhibited by branched-chain amino acids in vitro. Neurochem Res 28:675–679CrossRefPubMed
Zurück zum Zitat Ribeiro CA, Sgaravatti AM, Rosa R (2008) Inhibition of brain energy metabolism by the branched-chain amino acids accumulating in maple syrup urine disease. Neurochem Res 33:114–124CrossRefPubMed Ribeiro CA, Sgaravatti AM, Rosa R (2008) Inhibition of brain energy metabolism by the branched-chain amino acids accumulating in maple syrup urine disease. Neurochem Res 33:114–124CrossRefPubMed
Zurück zum Zitat Rosa RM, Flores DG, Appelt HR, Braga AL, Henriques JA, Roesler R (2003) Facilitation of long-term object recognition memory by pretraining administration of diphenyl diselenide in mice. Neurosci Lett 341:217–220CrossRefPubMed Rosa RM, Flores DG, Appelt HR, Braga AL, Henriques JA, Roesler R (2003) Facilitation of long-term object recognition memory by pretraining administration of diphenyl diselenide in mice. Neurosci Lett 341:217–220CrossRefPubMed
Zurück zum Zitat Scaini G, Teodorak BP, Jeremias IC (2012) Antioxidant administration prevents memory impairment in an animal model of maple syrup urine disease. Behav Brain Res 23:92–96CrossRef Scaini G, Teodorak BP, Jeremias IC (2012) Antioxidant administration prevents memory impairment in an animal model of maple syrup urine disease. Behav Brain Res 23:92–96CrossRef
Zurück zum Zitat Schroder N, O’Dell SJ, Marshall JF (2003) Neurotoxic methamphetamine regimen severely impairs recognition memory in rats. Synapse 49:89–96CrossRefPubMed Schroder N, O’Dell SJ, Marshall JF (2003) Neurotoxic methamphetamine regimen severely impairs recognition memory in rats. Synapse 49:89–96CrossRefPubMed
Zurück zum Zitat Sgaravati AM, Rosa RB, Schuck PF (2003) Inhibition of brain energy metabolism by the a-keto acids accumulating in maple syrup urine disease. Biochim Biophys Acta 1639:232–238CrossRef Sgaravati AM, Rosa RB, Schuck PF (2003) Inhibition of brain energy metabolism by the a-keto acids accumulating in maple syrup urine disease. Biochim Biophys Acta 1639:232–238CrossRef
Zurück zum Zitat Snider WD (1994) Functions of the neurotrophins during nervous system development: what the knockouts are teaching us. Cell 77:627–638CrossRefPubMed Snider WD (1994) Functions of the neurotrophins during nervous system development: what the knockouts are teaching us. Cell 77:627–638CrossRefPubMed
Zurück zum Zitat Snyderman SE, Norton PM, Roitman E, Holt LE Jr (1964) Maple syrup urine disease, with particular reference to dietotherapy. Pediatrics 34:454–472PubMed Snyderman SE, Norton PM, Roitman E, Holt LE Jr (1964) Maple syrup urine disease, with particular reference to dietotherapy. Pediatrics 34:454–472PubMed
Zurück zum Zitat Soule J, Messaoudi E, Bramham CR (2006) Brain-derived neurotrophic factor and control of synaptic consolidation in the adult brain. Biochem Soc Trans 34:600–604CrossRefPubMed Soule J, Messaoudi E, Bramham CR (2006) Brain-derived neurotrophic factor and control of synaptic consolidation in the adult brain. Biochem Soc Trans 34:600–604CrossRefPubMed
Zurück zum Zitat Taketomi T, Kunishita T, Hara A, Mizushima S (1983) Abnormal protein and lipid compositions of the cerebral myelin of a patient with maple syrup urine disease. Jpn J Exp Med 53:109–116PubMed Taketomi T, Kunishita T, Hara A, Mizushima S (1983) Abnormal protein and lipid compositions of the cerebral myelin of a patient with maple syrup urine disease. Jpn J Exp Med 53:109–116PubMed
Zurück zum Zitat Treacy E, Clow CL, Reade TR, Chitayat D, Mamer OA, Scriver CR (1992) Maple syrup urine disease: interrelationship between branched-chain amino-, oxo- and hydroxyacids; implications for treatment; associations with CNS dysmyelination. J Inherit Metab Dis 15:121–135CrossRefPubMed Treacy E, Clow CL, Reade TR, Chitayat D, Mamer OA, Scriver CR (1992) Maple syrup urine disease: interrelationship between branched-chain amino-, oxo- and hydroxyacids; implications for treatment; associations with CNS dysmyelination. J Inherit Metab Dis 15:121–135CrossRefPubMed
Zurück zum Zitat Tribble D, Shapira R (1983) Myelin proteins: degradation in rat brain initiated by metabolites causative of maple syrup urine disease. Biochem Biophys Res Commun 114:440–446CrossRefPubMed Tribble D, Shapira R (1983) Myelin proteins: degradation in rat brain initiated by metabolites causative of maple syrup urine disease. Biochem Biophys Res Commun 114:440–446CrossRefPubMed
Zurück zum Zitat Tyler WJ, Alonso M, Bramham CR, Pozzo-Miller LD (2002) From acquisition to consolidation: on the role of brain-derived neurotrophic factor signaling in hippocampal-dependent learning. Learn Mem 9:224–237CrossRefPubMedPubMedCentral Tyler WJ, Alonso M, Bramham CR, Pozzo-Miller LD (2002) From acquisition to consolidation: on the role of brain-derived neurotrophic factor signaling in hippocampal-dependent learning. Learn Mem 9:224–237CrossRefPubMedPubMedCentral
Zurück zum Zitat Vasques VC, Brinco F, Wajner M (2005) Intrahippocampal administration of the branched-chain alpha-hydroxy acids accumulating in maple syrup urine disease compromises rat performance in aversive and non-aversive behavioral tasks. J Neurol Sci 232:11–21CrossRef Vasques VC, Brinco F, Wajner M (2005) Intrahippocampal administration of the branched-chain alpha-hydroxy acids accumulating in maple syrup urine disease compromises rat performance in aversive and non-aversive behavioral tasks. J Neurol Sci 232:11–21CrossRef
Zurück zum Zitat Vianna MR, Alonso M, Viola H (2000) Role of hippocampal signaling pathways in long-term memory formation of a nonassociative learning task in the rat. Learn Mem 7:333–340CrossRefPubMedPubMedCentral Vianna MR, Alonso M, Viola H (2000) Role of hippocampal signaling pathways in long-term memory formation of a nonassociative learning task in the rat. Learn Mem 7:333–340CrossRefPubMedPubMedCentral
Zurück zum Zitat Woo NH, Teng HK, Siao CJ (2005) Activation of p75NTR by proBDNF facilitates hippocampal long-term depression. Nat Neurosci 8:1069–1077CrossRefPubMed Woo NH, Teng HK, Siao CJ (2005) Activation of p75NTR by proBDNF facilitates hippocampal long-term depression. Nat Neurosci 8:1069–1077CrossRefPubMed
Zurück zum Zitat Yamada K, Mizuno M, Nabeshima T (2002) Role for brain-derived neurotrophic factor in learning and memory. Life Sci 70:735–744CrossRefPubMed Yamada K, Mizuno M, Nabeshima T (2002) Role for brain-derived neurotrophic factor in learning and memory. Life Sci 70:735–744CrossRefPubMed
Metadaten
Titel
Chronic administration of branched-chain amino acids impairs spatial memory and increases brain-derived neurotrophic factor in a rat model
verfasst von
Giselli Scaini
Clarissa M. Comim
Giovanna M. T. Oliveira
Matheus A. B. Pasquali
João Quevedo
Daniel P. Gelain
José Cláudio F. Moreira
Patrícia F. Schuck
Gustavo C. Ferreira
Maurício R. Bogo
Emilio L. Streck
Publikationsdatum
01.09.2013
Verlag
Springer Netherlands
Erschienen in
Journal of Inherited Metabolic Disease / Ausgabe 5/2013
Print ISSN: 0141-8955
Elektronische ISSN: 1573-2665
DOI
https://doi.org/10.1007/s10545-012-9549-z

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