Automated analysis of spines from confocal laser microscopy images: application to the discrimination of androgen and estrogen effects on spinogenesis.

Automated analysis of spines from confocal laser microscopy images: application to the discrimination of androgen and estrogen effects on spinogenesis.
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共聚焦激光显微镜图像对刺的自动分析:应用于雄激素和雌激素对旋转生成的影响。

DOI:
10.1093/cercor/bhr059
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发表时间:
2011-12
期刊:
Cerebral cortex (New York, N.Y. : 1991)
影响因子:
--
通讯作者:
Kawato S
Kawato S
中科院分区:
其他
文献类型:
--
作者:
Mukai H;Hatanaka Y;Mitsuhashi K;Hojo Y;Komatsuzaki Y;Sato R;Murakami G;Kimoto T;Kawato S

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突触后结构的精确3D测定对于我们理解神经元中与记忆相关的功能和病理是必不可少的。然而,当前的脊柱分析方法需要在大图像数据集中进行耗时且劳动密集的手动脊柱识别。因此,有必要用一种切实可行的算法来代替人工识别。在这里,我们描述了一种新的方法,自动检测的脊椎和树突的几何特征分析的基础上。我们的“Spiso-3D”软件使用特征值图像和亮度信息进行自动树突重建和棘检测,避免检测伪棘。为了证明Spiso-3D自动化分析的潜在应用,我们区分了雄激素和雌激素对海马中棘头直径的快速调节的快速作用。这些发现促进了我们对脑性类固醇神经营养功能的认识。我们的方法预计将是有价值的分析大量的树突棘的神经元在哺乳动物大脑皮层。
Accurate 3D determination of postsynaptic structures is essential to our understanding memory-related function and pathology in neurons. However, current methods of spine analysis require time-consuming and labor-intensive manual spine identification in large image data sets. Therefore, a realistic implementation of algorithm is necessary to replace manual identification. Here, we describe a new method for the automated detection of spines and dendrites based on analysis of geometrical features. Our “Spiso-3D” software carries out automated dendrite reconstruction and spine detection using both eigenvalue images and information of brightness, avoiding detection of pseudo-spines. To demonstrate the potential application of Spiso-3D automated analysis, we distinguished the rapid effects of androgen and estrogen on rapid modulation of spine head diameter in the hippocampus. These findings advance our understanding of neurotrophic function of brain sex steroids. Our method is expected to be valuable to analyze vast amounts of dendritic spines in neurons in the mammalian cerebral cortex.
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