REDUCED GRAVITY--EFFECTS IN THE DEVELOPING NERVOUS SYST
REDUCED GRAVITY--EFFECTS IN THE DEVELOPING NERVOUS SYST
批准号:
2445824
负责人:
Richard S Nowakowski
金额:
$28.27万
依托单位国家:
美国
项目类别:
财政年份:
1995
资助国家:
美国
项目状态:
已结题
起止时间:
1995-09-30 至 1999-06-30
关键词:
brain cell bromodeoxyuridine cell cycle cell differentiation cell migration cerebral cortex developmental neurobiology embryo /fetus cell /tissue environmental adaptation extraterrestrial environment gestational age gravity laboratory mouse laboratory rat newborn animals orientation thymidine tritium
中文摘要
描述:申请者提议研究太空的影响
飞行和微重力对发育中的大脑皮层细胞的影响。
这些研究将检查三个细胞过程:1)细胞
增殖,2)神经元迁移,3)神经元分化,
包括树突/轴突的定向和获得适当的
神经回路。细胞增殖的两个标记物
(溴脱氧尿苷和氚胸苷)将用于
孕鼠在大脑发育过程中选定的几天
大脑皮层。短期分析(注射后2.5小时后处死胎儿)
将研究细胞增殖对太空飞行的反应
检查增殖细胞的数量或长度的变化
细胞周期。将通过以下方式评估中期影响
注射后1~3d处死胎鼠。迁徙的
我们将研究发育中的大脑皮层内细胞的命运。
长期的影响将通过牺牲那些
在出生后30天内视为不同年龄的胎儿。这个
将分析在特定年龄出生的细胞的最终位置。
英文摘要
DESCRIPTION: The applicant proposes to examine the effects of space
flight and microgravity on the cells of the developing cerebral cortex.
These studies will examine three cellular processes: 1) cell
proliferation, 2) neuronal migration, and 3) neuronal differentiation,
including dendrite/axon orientation and acquisition of appropriate
neuronal circuitry. Two markers of cell proliferation
(bromodeoxyuridine and tritiated thymidine) will be administered to
pregnant rats on selected days during the development of the cerebral
cortex. Short term analyses (sacrifice fetuses 2.5 hrs post-injection)
will examine the responses of cell proliferation to space flight by
examining changes in the number of proliferating cells or the length of
the cell cycle. Intermediate-term effects will be assessed by
sacrificing the fetal animals 1-3 days post-injection. The migratory
fates of cells within the developing cerebral cortex will be examined.
Long-term effects will be assessed by sacrificing animals that were
treated as fetuses at different ages through 30 days after birth. The
final position of cells born at particular ages will analyzed.
期刊论文(0)
专著(0)
科研奖励(0)
会议论文
Neuronogenesis in the Non-pigmented Retina
-
批准号:6799530
-
项目类别:
-
资助金额:$31.1万
-
财政年份:2004
-
负责人:Richard S Nowakowski
-
依托单位:
Phenomic analysis of the murine hippocampus
-
批准号:7225228
-
项目类别:
-
资助金额:$34.1万
-
财政年份:2004
-
负责人:Richard S Nowakowski
-
依托单位:
Phenomic analysis of the murine hippocampus
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批准号:7058197
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项目类别:
-
资助金额:$35.11万
-
财政年份:2004
-
负责人:Richard S Nowakowski
-
依托单位:
Neuronogenesis in the Non-pigmented Retina
-
批准号:7257050
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项目类别:
-
资助金额:$30.2万
-
财政年份:2004
-
负责人:Richard S Nowakowski
-
依托单位:
Phenomic analysis of the murine hippocampus
-
批准号:6819087
-
项目类别:
-
资助金额:$35.7万
-
财政年份:2004
-
负责人:Richard S Nowakowski
-
依托单位:
Neuronogenesis in the Non-pigmented Retina
-
批准号:6888016
-
项目类别:
-
资助金额:$31.1万
-
财政年份:2004
-
负责人:Richard S Nowakowski
-
依托单位:
Phenomic analysis of the murine hippocampus
-
批准号:6897308
-
项目类别:
-
资助金额:$35.96万
-
财政年份:2004
-
负责人:Richard S Nowakowski
-
依托单位:
Neuronogenesis in the Non-pigmented Retina
-
批准号:7415015
-
项目类别:
-
资助金额:$29.6万
-
财政年份:2004
-
负责人:Richard S Nowakowski
-
依托单位:
Neuronogenesis in the Non-pigmented Retina
-
批准号:7057231
-
项目类别:
-
资助金额:$30.37万
-
财政年份:2004
-
负责人:Richard S Nowakowski
-
依托单位:
REDUCED GRAVITY--EFFECTS IN THE DEVELOPING NERVOUS SYST
-
批准号:2272271
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项目类别:
-
资助金额:$21.33万
-
财政年份:1995
-
负责人:Richard S Nowakowski
-
依托单位:
REDUCED GRAVITY--EFFECTS IN THE DEVELOPING NERVOUS SYST
-
批准号:2037849
-
项目类别:
-
资助金额:$23.81万
-
财政年份:1995
-
负责人:Richard S Nowakowski
-
依托单位:
REDUCED GRAVITY--EFFECTS IN THE DEVELOPING NERVOUS SYST
-
批准号:2735651
-
项目类别:
-
资助金额:$24.18万
-
财政年份:1995
-
负责人:Richard S Nowakowski
-
依托单位:
CELL PROLIFERATION IN DEVELOPING HIPPOCAMPAL REGION
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批准号:3414512
-
项目类别:
-
资助金额:$11.12万
-
财政年份:1990
-
负责人:Richard S Nowakowski
-
依托单位:
CELL PROLIFERATION IN DEVELOPING HIPPOCAMPAL REGION
-
批准号:3414513
-
项目类别:
-
资助金额:$11.56万
-
财政年份:1990
-
负责人:Richard S Nowakowski
-
依托单位:
CELL PROLIFERATION IN DEVELOPING HIPPOCAMPAL REGION
-
批准号:3414510
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项目类别:
-
资助金额:$10.91万
-
财政年份:1990
-
负责人:Richard S Nowakowski
-
依托单位:
CELL PROLIFERATION IN DEVELOPING HIPPOCAMPAL REGION
-
批准号:2266742
-
项目类别:
-
资助金额:$12.32万
-
财政年份:1990
-
负责人:Richard S Nowakowski
-
依托单位:
CELL PROLIFERATION IN DEVELOPING HIPPOCAMPAL REGION
-
批准号:3414511
-
项目类别:
-
资助金额:$11.08万
-
财政年份:1990
-
负责人:Richard S Nowakowski
-
依托单位:
IMAGE ANALYSIS AND ENHANCEMENT SYSTEM FOR NEUROBIOLOGY
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批准号:3519925
-
项目类别:
-
资助金额:$16.7万
-
财政年份:1988
-
负责人:Richard S Nowakowski
-
依托单位:
CONTROL OF CELL MIGRATION IN DEVELOPING BRAIN
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批准号:3407406
-
项目类别:
-
资助金额:$11.26万
-
财政年份:1985
-
负责人:Richard S Nowakowski
-
依托单位:
CONTROL OF CELL MIGRATION IN DEVELOPING BRAIN
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批准号:3403640
-
项目类别:
-
资助金额:$1.49万
-
财政年份:1985
-
负责人:Richard S Nowakowski
-
依托单位:
海外基金