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(cell and molecular biology)
The inner, semifluid portion of the cytoplasm.



in animals and plants, the interior layer of cytoplasm. The endoplasm lies next to the nucleus and contains more organoids and other inclusions than the ectoplasm. The endoplasm is distinctly marked in many protozoans and in some tissue cells, for example, fibroblasts. The cytoplasm is conventionally divided into the ectoplasm and the endoplasm.

References in periodicals archive ?
How N-linked oligosaccharides affect glycoprotein folding in the endoplasmic reticulum.
Microsomes: Small vesicles derived from fragmented endoplasmic reticulum produced when tissues such as liver are mechanically broken (homogenized).
With cytoplasmic growth, several small mitochondria, well-developed endoplasmic reticulum and several vacuoles were concentrated around the nucleus in the cytoplasm of the previtellogenic oocyte.
Celecoxib upregulates endoplasmic reticulum chaperones that inhibit celecoxib-induced apoptosis in human gastric cells.
25) Accumulated cholesterol in the endoplasmic reticulum caused ER stress in macrophages and is a key factor in atherosclerosis.
Unlike MAO-B, the endoplasmic reticulum-associated CYP2D6 was thought to have a protective effect against MPTP toxicity.
Table 1 Identification of prohibitin, annexin 1 and endoplasmic reticulum protein 28 by mass spectrometry.
The neuroligin 3 mutation, an arginine-to-cysteine substitution, was identified in a set of twins and has been shown to result in most of the expressed protein being retained within the endoplasmic reticulum.
When found, they are seen within endoplasmic reticulum of neurons (Figure, panel D).
Electron microscope examination showed that organelles of infected cells, such as the endoplasmic reticulum; expanded, mitochondria dilated, nuclear membranes dissolved or disappeared, and the edges of the nucleolus swelled.
10) Histochemical or electronmicroscopic confirmation of the oncocytic (mitochondrial) nature of the cytoplasm is necessary because cytoplasmic accumulation of smooth endoplasmic reticula, lysosomes, or secretory granules may have a similar appearance.

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