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    J Chem Neuroanat. 2008 Mar;35(2):216-24. Epub 2007 Dec 14.

    Regional and cellular distribution patterns of insulin-degrading enzyme in the adult human brain and pituitary.

    Bernstein HG, Lendeckel U, Bukowska A, Ansorge S, Ernst T, Stauch R, Trübner K, Steiner J, Dobrowolny H, Bogerts B.

    Source

    HansDepartment of Psychiatry, University of Magdeburg, Leipziger Str. 44, D-39120 Magdeburg, Germany. Hans-Gert.Bernstein@med.ovgu.de

    Abstract

    The regional distribution and cellular localization of insulin-degrading enzyme (IDE) was studied in adult human brain and pituitary by means of immunhistochemistry. We show that the enzyme is widely but unevenly distributed in human brain, with hypothalamic neurons showing the strongest immunoreaction. Strong to moderate immunostaining for the enzyme was observed in multiple cortical areas, hippocampus, cerebellum, and brain stem. Cellularly, IDE was mainly confined to neurons, but it was also present in oligodendrocytes, choroid plexus, and some blood vessel endothelial cells. A strong immunoreaction was seen in a subset of adenohypophysial cells. Some immunolabeling was also present in the neurohypophysis. The putative importance of the distribution of the enzyme in brain and pituitary is discussed in relation to its main known substrates, insulin, Abeta, and beta-endorphin.

    PMID:
    18226493
    [PubMed - indexed for MEDLINE]

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