【app/ps1双转基因小鼠背景APP/PS1小鼠AD模型】
APP/PS1双转基因小鼠(app/ps1小鼠)实验动物模型购买价格请咨询
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关键词:
Abstract:
Mice carrying mutant amyloid-β precursor protein and presenilin-1 genes (APP/PS1 double trans-genic mice) have frequently been used in studies of Alzheimer’s disease; however, such studies have focused mainly on hippocampal and cortical changes. The severity of Alzheimer’s disease is known to correlate with the amount of amyloid-β protein deposition and the number of dead neurons in the locus coeruleus. In the present study, we assigned APP/PS1 double transgenic mice to two groups according to age: young mice (5–6 months old) and aged mice (16–17 months old). Age-matched wild-type mice were used as controls. Immunohistochemistry for tyrosine hydroxylase (a marker of catecholaminergic neurons in the locus coeruleus) revealed that APP/PS1 mice had 23% fewer cells in the locus coeruleus compared with aged wild-type mice. APP/PS1 mice also had increased numbers of cell bodies of neurons positive for tyrosine hydroxylase, but fewer tyrosine hydroxylase-positive fibers, which were also short, thick and broken. Quantitative analysis using unbiased stereology showed a significant age-related increase in the mean volume of tyrosine hy-droxylase-positive neurons in aged APP/PS1 mice compared with young APP/PS1 mice. Moreover, the mean volume of tyrosine hydroxylase-positive neurons was positively correlated with the total volume of the locus coeruleus. These findings indicate that noradrenergic neurons and fibers in the locus coeruleus are predisposed to degenerative alterations in APP/PS1 double transgenic mice.
对APP/PS1双转基因小鼠动物进行研究
AD转基因app/ps1小鼠品系描述：
APP/PS1双转基因小鼠APP/PS1双转基因小鼠APP/PS1双转基因小鼠APP/PS1双转基因小鼠APP/PS1双转基因小鼠APP/PS1双转基因小鼠AD转基因app/ps1小鼠制备引物应用领域
2) 老年痴呆症和神经退行性变化的神经生物学研究
APP/PS1双转基因小鼠STRAIN NAME: C57BL/6J--KO（Apoe-KOXCMV-hApoE4）
TYPE: transfergen
BACKGROUND STRAIN: C57BL/6J
COAT COLOR: black
ORIGIN: Developed through crosses and back-crosses between CMV-ApoE4 transgenic mice and ApoE4 gene knockout mice. Systemic expression human ApoE4 gene, but no expression mice ApoE3 gene, IT is important tool to study different ApoE alleles. The human ApoE CDNA length 1.163kb. ApoE gene has three alleles, namely E2, E3 and E4, constitute the six different genotypes: three homozygous (E2/E2, E3/E3 and E4/E4) and three heterozygous (E2 / E3, E3/E4 and E2/E4). The gene frequencies is differen in differen ethnic and different regional, E2 accounted for 8%, E3 accounted for 78%, E4, 14%. using the CMV expression ApoE2, ApoE3 and ApoE4 transgenic mice is mportant models for study CHD, hyperlipidemia, cerebral infarction and chronic hepatitis and other diseases
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