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Series

2013

Illawarra Health and Medical Research Institute

Alzheimer

Articles 1 - 2 of 2

Full-Text Articles in Medicine and Health Sciences

Neurotrophin Signaling And Alzheimer's Disease Neurodegeneration - Focus On Bdnf/Trkb Signaling, Jenny Wong Jan 2013

Neurotrophin Signaling And Alzheimer's Disease Neurodegeneration - Focus On Bdnf/Trkb Signaling, Jenny Wong

Illawarra Health and Medical Research Institute

Neurotrophins are small proteins vital for neuronal growth, differentiation, survival, and plasticity. Members of the mammalian neurotrophin family include nerve growth factor (NGF), brain-derived neurotrophic factor (BDNF), neurotrophin-3 (NT-3), and neurotrophin- 4/5 (NT-4/5). Their neurotrophic effects are mediated by the tropomyosin receptor kinase (Trk) receptors, membrane-bound receptor tyrosine kinases (NGF for TrkA, BDNF and NT4/5 for TrkB, and NT-3 for TrkC) which activate various cell signaling pathways linked to growth, differentiation, and survival. The importance of neurotrophin signaling in brain development is highlighted by findings showing that knockout mice for any one of the neurotrophins or their receptors are fatal …


Novel Behavioural Characteristics Of The Appswe/Ps1Δe9 Transgenic Mouse Model Of Alzheimer's Disease, David Cheng, Warren Logge, Jac Kee Low, Brett Garner, Tim Karl Jan 2013

Novel Behavioural Characteristics Of The Appswe/Ps1Δe9 Transgenic Mouse Model Of Alzheimer's Disease, David Cheng, Warren Logge, Jac Kee Low, Brett Garner, Tim Karl

Illawarra Health and Medical Research Institute

In order to better understand animal models of Alzheimer's disease, novel phenotyping strategies have been established for transgenic mouse models. In line with this, the current study characterised male APPxPS1 transgenic mice on mixed C57BL/6JxC3H/HeJ background for the first time for social recognition memory, sensorimotor gating, and spatial memory using the cheeseboard test as an alternative to the Morris water maze. Furthermore, locomotion, anxiety, and fear conditioning were evaluated in transgenic and wild type-like animals. APPxPS1 males displayed task-dependent hyperlocomotion and anxiety behaviours and exhibited social recognition memory impairments compared to wild type-like littermates. Spatial learning and memory, fear conditioning, …