dense bodies


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dense bodies

granules in the central granulomere of blood platelets that take up and store serotonin from plasma. Electron-dense bodies containing α-actinin in the cytoplasm of smooth muscle cells associated with the cell membrane are believed to be homologous to the Z-lines of striated muscle.

dense granule

Cardiology
A specialised spherical storage and secretory vesicle in platelets which contains ADP, ATP, ionised calcium, pyrophosphate and serotonin. Reduced-platelet dense-granule secretion is associated with marked protection against arterial thrombosis, inflammation, and neointimal hyperplasia after vascular injury in a mouse model.

Pathology
Dense-core granules, see there.

dense bod·ies

(dens bŏd'ēz)
1. Granules in the central granulomere of blood platelets that take up and store serotonin from plasma.
2. Electron-dense bodies containing α-actinin in the cytoplasm of smooth muscle cells, believed to be homologous to the Z-lines of striated muscle.

dense bodies

round, amorphous bodies scattered through the cytoplasm of smooth muscle fibers; they appear to be points of attachment for myofilaments.
References in periodicals archive ?
The ultrastructure of the spindle cells shows the presence of discrete bundles of microfilaments that contain many dense bodies that measure between 5 and 7 nm in diameter as well as filaments that are not bundled that measure 10 nm in diameter.
Ashtekar said heavy celestial objects bend space and time but because of the relative weakness of the gravitational force the effect is miniscule except from massive and dense bodies like black holes and neutron stars.
The funds will be used to advance further it[acute accent]s vaccine candidate, HCMV dense bodies (DBs) derived from CEVEC[acute accent]s human CAP cell technology.
The cytoplasm in some sections became electron-lucent, devoid of ribosome and contained dense bodies and membrane whorls.
sets of membranes, one inside the other, dense bodies, soft, thin, rigid.
said: "The new analysis fills in some blanks in our solar system's history, giving us clues about how it transformed from floating bits of dust to dense bodies.
bundles of intracytoplasmic microfilaments with dense bodies that run parallel to the long axis of the cell (stress fibers)
One pulsar is exotic enough, but a closely orbiting pair offers more than double the information about the extreme gravity of these dense bodies.
Two major intracellular granules are present, the [alpha] granules and dense bodies (Fig.
Called dense bodies or Z-bars, the latter are equivalent to the Z-discs of vertebrate cross-striated muscle in that they provide attachment sites for the actin filaments and form the boundaries between the narrow sarcomeres (16).
Inversion modeling of the new gravity data will be undertaken to produce a 3-D model of the dense bodies.
By themselves, these dense bodies tend to keep a low profile.