pigment granule


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pigment granule

A granule seen in pigment cells.
See also: granule
References in periodicals archive ?
None of the PG eyes exhibited diffuse anterior iris stromal pigment granule dusting, except for trace cluster of pigment granules on inferior surface of the iris in three PG eyes from three patients.
Since myosin appears to be the predominant motor activated during slow-phase aggregation (McNamara and Ri-beiro, 1999), this suggests that PKG phosphorylates proteins involved in myosin-based translocation of pigment granules. The myosin-targeting subunit of myosin light chain phosphatase (MLCP) is phosphorylated by PKG through the cGMP cascade in smooth muscle cells, activating MLCP (Etter et al., 2001; Lincoln et al., 2001; Murthy et al., 2003; Bonnevier and Arner, 2004; Gao et al., 2007; Riddick et al., 2008).
[dagger] k is Young's Modulus, or spring stiffness, r is the radius of the pigment granule, and [mu] is cytosolic viscosity.
Chromatic adaptation in the decapod Crustacea is brought about by the differential translocation of colored pigment granules contained within specialized, multicellular effectors known as chromatosomes (McNamara, 1981).
As a first step toward evaluating the role of actin filaments in RPE pigment granule transport, we also investigated the effects of cytochalasin D on pigment granule migration in isolated RPE cells (unpubl.
In the histopathological evaluation of the biopsy sample obtained from the skin lesions, the observation of pigment granules in the collagen fibers and macrophages and granules present freely in the papillary dermis and perivascular area was found to support ochronosis, and the hydroxychloroquine treatment was stopped.
The cytoplasm contained more pigment granules than macrogametocytes.
There exist numerous pigment granules, sparsely scattered small vesicles of various shapes, mitochondria, Golgi apparatuses, and myeloid bodies (Plate 5).
The Aquavex AD range of aluminum pigment granules for water-based metallic inks has been developed to provide adhesion and rub resistance on paper, film and board.
A new range of Aquavex[R] AD aluminum pigment granules for water-based metallic inks has been developed to provide improved adhesion and rub resistance on paper, film, and board.
So eye colour lightens when the pigment granules in the front layer of the iris - which give it its colour - drop in number through age.