Skip to main content
Erschienen in: Journal of Neural Transmission 4/2015

01.04.2015 | Neurology and Preclinical Neurological Studies - Original Article

In vitro streptozotocin model for modeling Alzheimer-like changes: effect on amyloid precursor protein secretases and glycogen synthase kinase-3

verfasst von: Konstanze Plaschke, Jürgen Kopitz

Erschienen in: Journal of Neural Transmission | Ausgabe 4/2015

Einloggen, um Zugang zu erhalten

Abstract

There is accumulating evidence for a pathogenetic link between sporadic Alzheimer’s disease (AD) and diabetes mellitus (DM). At subdiabetogenic doses, the cerebral administration of the diabetogenic substance streptozotocin (STZ) induces an insulin-resistant brain state (IRBS). The aim of the present pilot study was to investigate the effect of STZ on Alzheimer-like characteristics such as amyloid precursor protein (APP) cleavage secretases, betaA4 fragment, and glycogen synthase kinase (GSK) in vitro. Different STZ concentrations (0–5 mM) and incubation intervals (0–48 h) were tested to find appropriate cell culture conditions for further biochemical analyses in human neuroblastoma cells (SK-N-MC). Lactate dehydrogenase (LDH) was measured spectrophotometrically. Intracellular ATP was determined using bioluminescent luciferase assay. Secretase activity (alpha, beta, and gamma) was measured by employing commercial fluorometric secretase activity assay kits, betaA4 fragment by immunoprecipitation. Glycogen synthase kinase-3alpha/beta (total and phospho-GSK) content was assayed by ELISA technique. In vitro STZ administration (1 mM) induced a significant reduction in intracellular ATP concentration without pronounced cell death after 24 and 48 h as measured by LDH. Under these experimental conditions, a significant increase in beta-secretase and a significant drop in alpha-secretase were obtained, whereas gamma-secretase was not changed significantly. Simultaneously, the betaA4 concentration was increased by about threefold. Furthermore, STZ significantly increased total GSK and markedly decreased phospho-GSK. A direct link between STZ, intracellular ATP deficit, and Alzheimer-related enzymes was shown in this in vitro pilot study. Thus, these results support the hypothesis that sporadic AD is being recognized as an IRBS, which can be modulated by in vitro STZ model. Continuing investigations relating pathogenetic mechanisms and AD-like hallmarks are necessary to modulate different cascades of the IRBS using in vitro models.
Literatur
Zurück zum Zitat Adlerz L, Holback S, Multhaup G, Iverfeldt K (2007) IGF-1-induced processing of the amyloid precursor protein family Is mediated by different signaling pathways. J Biol Chem 282:10203–10209CrossRefPubMed Adlerz L, Holback S, Multhaup G, Iverfeldt K (2007) IGF-1-induced processing of the amyloid precursor protein family Is mediated by different signaling pathways. J Biol Chem 282:10203–10209CrossRefPubMed
Zurück zum Zitat Ali A, Hoeflich KP, Woodgett JR (2001) Glycogen synthase kinase-3: properties, functions, and regulation. Chem Rev 101:2527–2540CrossRefPubMed Ali A, Hoeflich KP, Woodgett JR (2001) Glycogen synthase kinase-3: properties, functions, and regulation. Chem Rev 101:2527–2540CrossRefPubMed
Zurück zum Zitat Bergmeyer HU, Bernt E (1974) Lactate dehydrogenase. UV-assay with pyruvate and NADH. In: Bergmeyer HU (ed) Methods of enzymatic analysis. Academic Press, New York, pp 574–579CrossRef Bergmeyer HU, Bernt E (1974) Lactate dehydrogenase. UV-assay with pyruvate and NADH. In: Bergmeyer HU (ed) Methods of enzymatic analysis. Academic Press, New York, pp 574–579CrossRef
Zurück zum Zitat Chen Z, Zhong C (2013) Decoding Alzheimer’s disease from perturbed cerebral glucose metabolism: implications for diagnostic and therapeutic strategies. Prog Neurobiol 108:21–43CrossRefPubMed Chen Z, Zhong C (2013) Decoding Alzheimer’s disease from perturbed cerebral glucose metabolism: implications for diagnostic and therapeutic strategies. Prog Neurobiol 108:21–43CrossRefPubMed
Zurück zum Zitat Cuesta IG, Sánchez de Merás AM (2014) Energy interactions in amyloid-like fibrils from NNQQNY. Phys Chem Chem Phys 16:4369–4377CrossRefPubMed Cuesta IG, Sánchez de Merás AM (2014) Energy interactions in amyloid-like fibrils from NNQQNY. Phys Chem Chem Phys 16:4369–4377CrossRefPubMed
Zurück zum Zitat Cunnane S, Nugent S, Roy M, Courchesne-Loyer A, Croteau E, Tremblay S, Castellano A, Pifferi F, Bocti C, Paquet N, Begdouri H, Bentourkia M, Turcotte E, Allard M, Barberger-Gateau P, Fulop T, Rapoport SI (2011) Brain fuel metabolism, aging, and Alzheimer’s disease. Nutrition 27:3–20CrossRefPubMedCentralPubMed Cunnane S, Nugent S, Roy M, Courchesne-Loyer A, Croteau E, Tremblay S, Castellano A, Pifferi F, Bocti C, Paquet N, Begdouri H, Bentourkia M, Turcotte E, Allard M, Barberger-Gateau P, Fulop T, Rapoport SI (2011) Brain fuel metabolism, aging, and Alzheimer’s disease. Nutrition 27:3–20CrossRefPubMedCentralPubMed
Zurück zum Zitat Devi L, Alldred MJ, Ginsberg SD, Ohno M (2012) Mechanisms underlying insulin deficiency-induced acceleration of β-amyloidosis in a mouse model of Alzheimer’s disease. PLoS One 7:e32792CrossRefPubMedCentralPubMed Devi L, Alldred MJ, Ginsberg SD, Ohno M (2012) Mechanisms underlying insulin deficiency-induced acceleration of β-amyloidosis in a mouse model of Alzheimer’s disease. PLoS One 7:e32792CrossRefPubMedCentralPubMed
Zurück zum Zitat Ding A, Nitsch R, Hoyer S (1992) Changes in brain monoaminergic neurotransmitter concentrations in rat after intracerebroventricular injection of streptozotocin. J Cereb Blood Flow Metab 12:103–109CrossRefPubMed Ding A, Nitsch R, Hoyer S (1992) Changes in brain monoaminergic neurotransmitter concentrations in rat after intracerebroventricular injection of streptozotocin. J Cereb Blood Flow Metab 12:103–109CrossRefPubMed
Zurück zum Zitat Duelli R, Schröck H, Kuschinsky W, Hoyer S (1994) Intracerebroventricular injection of streptozotocin induces discrete local changes in cerebral glucose utilization in rats. Int J Dev Neurosci 12:737–743CrossRefPubMed Duelli R, Schröck H, Kuschinsky W, Hoyer S (1994) Intracerebroventricular injection of streptozotocin induces discrete local changes in cerebral glucose utilization in rats. Int J Dev Neurosci 12:737–743CrossRefPubMed
Zurück zum Zitat Embi N, Rylatt DB, Cohen P (1980) Glycogen synthase kinase-3 from rabbit skeletal muscle. Separation from cyclic-AMP-dependent protein kinase and phosphorylase kinase. Eur J Biochem 107:519–527CrossRefPubMed Embi N, Rylatt DB, Cohen P (1980) Glycogen synthase kinase-3 from rabbit skeletal muscle. Separation from cyclic-AMP-dependent protein kinase and phosphorylase kinase. Eur J Biochem 107:519–527CrossRefPubMed
Zurück zum Zitat Grünblatt E, Salkovic-Petrisic M, Osmanovic J, Riederer P, Hoyer S (2007) Brain insulin system dysfunction in streptozotocin intracerebroventricularly treated rats generates hyperphosphorylated tau protein. J Neurochem 101:757–770CrossRefPubMed Grünblatt E, Salkovic-Petrisic M, Osmanovic J, Riederer P, Hoyer S (2007) Brain insulin system dysfunction in streptozotocin intracerebroventricularly treated rats generates hyperphosphorylated tau protein. J Neurochem 101:757–770CrossRefPubMed
Zurück zum Zitat Hellweg R, Nitsch R, Hock C, Jaksch M, Hoyer S (1992) Nerve growth factor and choline acetyltransferase activity levels in the rat brain following experimental impairment of cerebral glucose and energy metabolism. J Neurosci Res 31:479–486CrossRefPubMed Hellweg R, Nitsch R, Hock C, Jaksch M, Hoyer S (1992) Nerve growth factor and choline acetyltransferase activity levels in the rat brain following experimental impairment of cerebral glucose and energy metabolism. J Neurosci Res 31:479–486CrossRefPubMed
Zurück zum Zitat Hoyer S (1992) Oxidative energy metabolism in Alzheimer brain. Studies in early-onset and late-onset cases. Mol Chem Neuropathol 16:207–224CrossRefPubMed Hoyer S (1992) Oxidative energy metabolism in Alzheimer brain. Studies in early-onset and late-onset cases. Mol Chem Neuropathol 16:207–224CrossRefPubMed
Zurück zum Zitat Hoyer S (1993) Abnormalities in brain glucose utilization and its impact on cellular and molecular mechanisms in sporadic dementia of Alzheimer type. Ann N Y Acad Sci 695:77–80CrossRefPubMed Hoyer S (1993) Abnormalities in brain glucose utilization and its impact on cellular and molecular mechanisms in sporadic dementia of Alzheimer type. Ann N Y Acad Sci 695:77–80CrossRefPubMed
Zurück zum Zitat Jack CR Jr, Wiste HJ, Vemuri P, Weigand SD, Senjem ML, Zeng G, Bernstein MA, Gunter JL, Pankratz VS, Aisen PS, Weiner MW, Petersen RC, Shaw LM, Trojanowski JQ, Knopman DS, Alzheimer’s Disease Neuroimaging Initiative (2010) Brain beta-amyloid measures and magnetic resonance imaging atrophy both predict time-to-progression from mild cognitive impairment to Alzheimer’s disease. Brain 133:3336–3348CrossRefPubMedCentralPubMed Jack CR Jr, Wiste HJ, Vemuri P, Weigand SD, Senjem ML, Zeng G, Bernstein MA, Gunter JL, Pankratz VS, Aisen PS, Weiner MW, Petersen RC, Shaw LM, Trojanowski JQ, Knopman DS, Alzheimer’s Disease Neuroimaging Initiative (2010) Brain beta-amyloid measures and magnetic resonance imaging atrophy both predict time-to-progression from mild cognitive impairment to Alzheimer’s disease. Brain 133:3336–3348CrossRefPubMedCentralPubMed
Zurück zum Zitat Jope RS, Johnson GV (2004) The glamour and gloom of glycogen synthase kinase-3. Trends Biochem Sci 29:95–102CrossRefPubMed Jope RS, Johnson GV (2004) The glamour and gloom of glycogen synthase kinase-3. Trends Biochem Sci 29:95–102CrossRefPubMed
Zurück zum Zitat Junod A, Lambert AE, Orci L, Pictet R, Gonet AE, Renold AE (1967) Studies of the diabetogenic action of streptozotocin. Proc Soc Exp Biol Med 126:201–205CrossRefPubMed Junod A, Lambert AE, Orci L, Pictet R, Gonet AE, Renold AE (1967) Studies of the diabetogenic action of streptozotocin. Proc Soc Exp Biol Med 126:201–205CrossRefPubMed
Zurück zum Zitat Lannert H, Hoyer S (1998) Intracerebroventricular administration of streptozotocin causes long-term diminutions in learning and memory abilities and in cerebral energy metabolism in adult rats. Behav Neurosci 112:1199–1208CrossRefPubMed Lannert H, Hoyer S (1998) Intracerebroventricular administration of streptozotocin causes long-term diminutions in learning and memory abilities and in cerebral energy metabolism in adult rats. Behav Neurosci 112:1199–1208CrossRefPubMed
Zurück zum Zitat Lester-Coll N, Rivera EJ, Soscia SJ, Doiron K, Wands JR, de la Monte SM (2006) Intracerebral streptozotocin model of type 3 diabetes: relevance to sporadic Alzheimer’s disease. J Alzheimers Dis 9:13–33PubMed Lester-Coll N, Rivera EJ, Soscia SJ, Doiron K, Wands JR, de la Monte SM (2006) Intracerebral streptozotocin model of type 3 diabetes: relevance to sporadic Alzheimer’s disease. J Alzheimers Dis 9:13–33PubMed
Zurück zum Zitat Liberman Z, Eldar-Finkelman H (2005) Serine 332 phosphorylation of insulin receptor substrate-1 by glycogen synthase kinase-3 attenuates insulin signaling. J Biol Chem 280:4422–4428CrossRefPubMed Liberman Z, Eldar-Finkelman H (2005) Serine 332 phosphorylation of insulin receptor substrate-1 by glycogen synthase kinase-3 attenuates insulin signaling. J Biol Chem 280:4422–4428CrossRefPubMed
Zurück zum Zitat Lichtenthaler SF (2012) Alpha-secretase cleavage of the amyloid precursor protein: proteolysis regulated by signaling pathways and protein trafficking. Curr Alzheimer Res 9:165–177CrossRefPubMed Lichtenthaler SF (2012) Alpha-secretase cleavage of the amyloid precursor protein: proteolysis regulated by signaling pathways and protein trafficking. Curr Alzheimer Res 9:165–177CrossRefPubMed
Zurück zum Zitat Lowry OH, Rosebrough NJ, Farr AL, Randall RJ (1951) Protein measurement with the Folin phenol reagent. J Biol Chem 193:265–275PubMed Lowry OH, Rosebrough NJ, Farr AL, Randall RJ (1951) Protein measurement with the Folin phenol reagent. J Biol Chem 193:265–275PubMed
Zurück zum Zitat Moreira PI, Cardoso SM, Pereira CM, Santos MS, Oliveira CR (2009) Mitochondria as a therapeutic target in Alzheimer’s disease and diabetes. CNS Neurol Disord Drug Targets 8:492–511CrossRefPubMed Moreira PI, Cardoso SM, Pereira CM, Santos MS, Oliveira CR (2009) Mitochondria as a therapeutic target in Alzheimer’s disease and diabetes. CNS Neurol Disord Drug Targets 8:492–511CrossRefPubMed
Zurück zum Zitat Nitsch R, Hoyer S (1991) Local action of the diabetogenic drug, streptozotocin, on glucose and energy metabolism in rat brain cortex. Neurosci Lett 128:199–202CrossRefPubMed Nitsch R, Hoyer S (1991) Local action of the diabetogenic drug, streptozotocin, on glucose and energy metabolism in rat brain cortex. Neurosci Lett 128:199–202CrossRefPubMed
Zurück zum Zitat Pei JJ, Khatoon S, An WL, Nordlinder M, Tanaka T, Braak H, Tsujio I, Takeda M, Alafuzoff I, Winblad B, Cowburn RF, Grundke-Iqbal I, Iqbal K (2003) Role of protein kinase B in Alzheimer’s neurofibrillary pathology. Acta Neuropathol 105:381–392PubMed Pei JJ, Khatoon S, An WL, Nordlinder M, Tanaka T, Braak H, Tsujio I, Takeda M, Alafuzoff I, Winblad B, Cowburn RF, Grundke-Iqbal I, Iqbal K (2003) Role of protein kinase B in Alzheimer’s neurofibrillary pathology. Acta Neuropathol 105:381–392PubMed
Zurück zum Zitat Phiel CJ, Wilson CA, Lee VM, Klein PS (2003) GSK-3alpha regulates production of Alzheimer’s disease amyloid-beta peptides. Nature 423:435–439CrossRefPubMed Phiel CJ, Wilson CA, Lee VM, Klein PS (2003) GSK-3alpha regulates production of Alzheimer’s disease amyloid-beta peptides. Nature 423:435–439CrossRefPubMed
Zurück zum Zitat Plaschke K, Hoyer S (1993) Action of the diabetogenic drug streptozotocin on glycolytic and glycogenolytic metabolism in adult rat brain cortex and hippocampus. Int J Dev Neurosci 11:477–483CrossRefPubMed Plaschke K, Hoyer S (1993) Action of the diabetogenic drug streptozotocin on glycolytic and glycogenolytic metabolism in adult rat brain cortex and hippocampus. Int J Dev Neurosci 11:477–483CrossRefPubMed
Zurück zum Zitat Plaschke K, Kopitz J, Siegelin M, Schliebs R, Salkovic-Petrisic M, Riederer P, Hoyer S (2010) Insulin-resistant brain state after intracerebroventricular streptozotocin injection exacerbates Alzheimer-like changes in Tg2576 AbetaPP-overexpressing mice. J Alzheimers Dis 19:691–704PubMed Plaschke K, Kopitz J, Siegelin M, Schliebs R, Salkovic-Petrisic M, Riederer P, Hoyer S (2010) Insulin-resistant brain state after intracerebroventricular streptozotocin injection exacerbates Alzheimer-like changes in Tg2576 AbetaPP-overexpressing mice. J Alzheimers Dis 19:691–704PubMed
Zurück zum Zitat Reiman EM, Caselli RJ, Yun LS, Chen K, Bandy D, Minoshima S, Thibodeau SN, Osborne D (1996) Preclinical evidence of Alzheimer’s disease in persons homozygous for the epsilon 4 allele for apolipoprotein E. N Engl J Med 334:752–758CrossRefPubMed Reiman EM, Caselli RJ, Yun LS, Chen K, Bandy D, Minoshima S, Thibodeau SN, Osborne D (1996) Preclinical evidence of Alzheimer’s disease in persons homozygous for the epsilon 4 allele for apolipoprotein E. N Engl J Med 334:752–758CrossRefPubMed
Zurück zum Zitat Salkovic-Petrisic M, Hoyer S (2007) Central insulin resistance as a trigger for sporadic Alzheimer-like pathology: an experimental approach. J Neural Transm Suppl 72:217–233CrossRefPubMed Salkovic-Petrisic M, Hoyer S (2007) Central insulin resistance as a trigger for sporadic Alzheimer-like pathology: an experimental approach. J Neural Transm Suppl 72:217–233CrossRefPubMed
Zurück zum Zitat Salkovic-Petrisic M, Lackovic Z, Hoyer S, Riederer P (2005) Central administration of alloxan impairs glucose tolerance in rats. J Neural Transm 112:1391–1395CrossRefPubMed Salkovic-Petrisic M, Lackovic Z, Hoyer S, Riederer P (2005) Central administration of alloxan impairs glucose tolerance in rats. J Neural Transm 112:1391–1395CrossRefPubMed
Zurück zum Zitat Salkovic-Petrisic M, Tribl F, Schmidt M, Hoyer S, Riederer P (2006) Alzheimer-like changes in protein kinase B and glycogen synthase kinase-3 in rat frontal cortex and hippocampus after damage to the insulin signalling pathway. J Neurochem 96:1005–1015CrossRefPubMed Salkovic-Petrisic M, Tribl F, Schmidt M, Hoyer S, Riederer P (2006) Alzheimer-like changes in protein kinase B and glycogen synthase kinase-3 in rat frontal cortex and hippocampus after damage to the insulin signalling pathway. J Neurochem 96:1005–1015CrossRefPubMed
Zurück zum Zitat Salkovic-Petrisic M, Osmanovic J, Grünblatt E, Riederer P, Hoyer S (2009) Modeling sporadic Alzheimer’s disease: the insulin resistant brain state generates multiple long-term morphobiological abnormalities including hyperphosphorylated tau protein and amyloid-beta. J Alzheimers Dis 18:729–750PubMed Salkovic-Petrisic M, Osmanovic J, Grünblatt E, Riederer P, Hoyer S (2009) Modeling sporadic Alzheimer’s disease: the insulin resistant brain state generates multiple long-term morphobiological abnormalities including hyperphosphorylated tau protein and amyloid-beta. J Alzheimers Dis 18:729–750PubMed
Zurück zum Zitat Selkoe DL, Yamazaki T, Citron M, Podlisny MB, Koo EH, Teplow DB, Haass C (1996) The role of APP processing and trafficking pathways in the formation of amyloid beta-protein. Ann NY Acad Sci 777:57–64CrossRefPubMed Selkoe DL, Yamazaki T, Citron M, Podlisny MB, Koo EH, Teplow DB, Haass C (1996) The role of APP processing and trafficking pathways in the formation of amyloid beta-protein. Ann NY Acad Sci 777:57–64CrossRefPubMed
Zurück zum Zitat Siesjö BK (1978) Brain energy metabolism and catecholaminergic activity in hypoxia, hypercapnia and ischemia. J Neural Transm Suppl 14:17–22PubMed Siesjö BK (1978) Brain energy metabolism and catecholaminergic activity in hypoxia, hypercapnia and ischemia. J Neural Transm Suppl 14:17–22PubMed
Zurück zum Zitat Small GW, La Rue A, Komo S, Kaplan A, Mandelkern MA (1995) Predictors of cognitive change in middle-aged and older adults with memory loss. Am J Psychiatry 152:1757–1764CrossRefPubMed Small GW, La Rue A, Komo S, Kaplan A, Mandelkern MA (1995) Predictors of cognitive change in middle-aged and older adults with memory loss. Am J Psychiatry 152:1757–1764CrossRefPubMed
Zurück zum Zitat Steen E, Terry BM, Rivera EJ, Cannon JL, Neely TR, Tavares R, Xu XJ, Wands JR, de la Monte SM (2005) Impaired insulin and insulin-like growth factor expression and signaling mechanisms in Alzheimer’s disease–is this type 3 diabetes? J Alzheimers Dis 7:63–80PubMed Steen E, Terry BM, Rivera EJ, Cannon JL, Neely TR, Tavares R, Xu XJ, Wands JR, de la Monte SM (2005) Impaired insulin and insulin-like growth factor expression and signaling mechanisms in Alzheimer’s disease–is this type 3 diabetes? J Alzheimers Dis 7:63–80PubMed
Zurück zum Zitat Sun X, Sato S, Murayama O, Murayama M, Park JM, Yamaguchi H, Takashima A (2002) Lithium inhibits amyloid secretion in COS7 cells transfected with amyloid precursor protein C100. Neurosci Lett 321:61–64CrossRefPubMed Sun X, Sato S, Murayama O, Murayama M, Park JM, Yamaguchi H, Takashima A (2002) Lithium inhibits amyloid secretion in COS7 cells transfected with amyloid precursor protein C100. Neurosci Lett 321:61–64CrossRefPubMed
Zurück zum Zitat Velliquette RA, O’Connor T, Vassar R (2005) Energy inhibition elevates beta-secretase levels and activity and is potentially amyloidogenic in APP transgenic mice: possible early events in Alzheimer’s disease pathogenesis. J Neurosci 25:10874–10883CrossRefPubMed Velliquette RA, O’Connor T, Vassar R (2005) Energy inhibition elevates beta-secretase levels and activity and is potentially amyloidogenic in APP transgenic mice: possible early events in Alzheimer’s disease pathogenesis. J Neurosci 25:10874–10883CrossRefPubMed
Zurück zum Zitat Wang X, Yu S, Gao SJ, Hu JP, Wang Y, Liu HX (2014) Insulin inhibits Aβ production through modulation of APP processing in a cellular model of Alzheimer’s disease. Neuro Endocrinol Lett 35:224–229PubMed Wang X, Yu S, Gao SJ, Hu JP, Wang Y, Liu HX (2014) Insulin inhibits Aβ production through modulation of APP processing in a cellular model of Alzheimer’s disease. Neuro Endocrinol Lett 35:224–229PubMed
Metadaten
Titel
In vitro streptozotocin model for modeling Alzheimer-like changes: effect on amyloid precursor protein secretases and glycogen synthase kinase-3
verfasst von
Konstanze Plaschke
Jürgen Kopitz
Publikationsdatum
01.04.2015
Verlag
Springer Vienna
Erschienen in
Journal of Neural Transmission / Ausgabe 4/2015
Print ISSN: 0300-9564
Elektronische ISSN: 1435-1463
DOI
https://doi.org/10.1007/s00702-014-1319-7

Weitere Artikel der Ausgabe 4/2015

Journal of Neural Transmission 4/2015 Zur Ausgabe

Leitlinien kompakt für die Neurologie

Mit medbee Pocketcards sicher entscheiden.

Seit 2022 gehört die medbee GmbH zum Springer Medizin Verlag

Sozialer Aufstieg verringert Demenzgefahr

24.05.2024 Demenz Nachrichten

Ein hohes soziales Niveau ist mit die beste Versicherung gegen eine Demenz. Noch geringer ist das Demenzrisiko für Menschen, die sozial aufsteigen: Sie gewinnen fast zwei demenzfreie Lebensjahre. Umgekehrt steigt die Demenzgefahr beim sozialen Abstieg.

Hirnblutung unter DOAK und VKA ähnlich bedrohlich

17.05.2024 Direkte orale Antikoagulanzien Nachrichten

Kommt es zu einer nichttraumatischen Hirnblutung, spielt es keine große Rolle, ob die Betroffenen zuvor direkt wirksame orale Antikoagulanzien oder Marcumar bekommen haben: Die Prognose ist ähnlich schlecht.

Was nützt die Kraniektomie bei schwerer tiefer Hirnblutung?

17.05.2024 Hirnblutung Nachrichten

Eine Studie zum Nutzen der druckentlastenden Kraniektomie nach schwerer tiefer supratentorieller Hirnblutung deutet einen Nutzen der Operation an. Für überlebende Patienten ist das dennoch nur eine bedingt gute Nachricht.

Thrombektomie auch bei großen Infarkten von Vorteil

16.05.2024 Ischämischer Schlaganfall Nachrichten

Auch ein sehr ausgedehnter ischämischer Schlaganfall scheint an sich kein Grund zu sein, von einer mechanischen Thrombektomie abzusehen. Dafür spricht die LASTE-Studie, an der Patienten und Patientinnen mit einem ASPECTS von maximal 5 beteiligt waren.

Update Neurologie

Bestellen Sie unseren Fach-Newsletter und bleiben Sie gut informiert.