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Fos-like immunoreactivity in cultured rat pinealocytes
Histochemistry, 1991The expression of Fos-like proteins in cultured rat pinealocytes was investigated immunocytochemically. Pineal glands of 2-day-old rats were dissociated and maintained in culture for 13 days, the last 24 h deprived of animal sera. The pinealocytes were identified morphologically and by serotonin-immunostaining. Incubations with phorbol dibutyrate (PDBu)
Jari Koistinaho, A. Tuulivaara
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Ultrastructure of pinealocytes of the kangaroo rat (Dipodomys ordi)
Cell and Tissue Research, 1982The ultrastructure of the pinealocytes of the wild-captured ord kangaroo rat (Dipodomys ordi) was examined. A homogeneous population of pinealocytes was present in the pineal gland of the kangaroo rat. The Golgi apparatus, granular endoplasmic reticulum, mitochondria, lysosomes, dense-core vesicles, vacuoles containing a flocculent material and lipid ...
Edward C. Hurlbut +3 more
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Intramitochondrial crystalloids in rat pinealocytes
Cell and Tissue Research, 1982In the present study the rare occurrence of intramitochondrial crystalloid inclusions in the rat pinealocytes is described. They lie within the mitochondrial matrix and consist of a lattice of moderately electron-dense lines. Intersections at regular intervals form rhomboid-like subunits. The significance of these inclusions is not known.
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Gap junctions between guinea-pig pinealocytes
Cell and Tissue Research, 1984In accordance with previous results in rats, belt-like arrangements of fenestrated gap junctions have been found around the collicular segments of pineal cells in the guinea pig. In addition, macular interpinealocyte gap junctions have been observed in this species.
S. K. Huang, Roland Taugner
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Influence of gonadotropic hormones on the ultrastructure of rat pinealocytes [PDF]
Cell and Tissue Research, 1978 The influence of gonadotropic hormones on the ultrastructure of rat pinealocytes was studied. Human chorionic gonadotropin (HCG) as well as pregnant mare serum gonadotropin (PMSG) caused a marked activation of pinealocytes. It is characterised by a conspicuous proliferation of the granular endoplasmic reticulum and Golgi apparatus as well as an ...
M. Karasek, K. Marek
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Existence and function of opioid receptors on nammalian pinealocytes
Journal of Pineal Research, 1998Abstract: Previous studies in our laboratories have identified a single population of opioid receptors in bovine pineal gland, which we have chosen to characterize further on pinealocytes isolated from the cow and rat pineal gland. The bovine pinealocytes isolated by trypsinization or mechanical manipulation revealed receptor density (Bmax) values of ...
Banthit Chetsawang +4 more
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The effects of testosterone on the mice pinealocytes: a quantitative study
Tissue and Cell, 1999In order to determine the effects of testosterone upon the function of the pineal gland we quantitated, under the electron microscope, the number of dense-core vesicles, lysosomes, lipid droplets and the fractional volume of the pineal gland components in adult male mice.
C A Redins, J C Novaes, K B Torres
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Tubular lysosomes in rat and gerbil pinealocytes
Histochemistry, 1988Ultracytochemical demonstration of acid phosphatase (AcPase) in pinealocytes of rat and Mongolian gerbil (Meriones unguiculatus) has revealed an existence of tubular lysosomes (30-200 nm in diameter and more than 5 micron long) in their cytoplasm.
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Localization of N- ethylmaleimide-sensitive fusion protein in pinealocytes
NeuroReport, 1995N-ethylmaleimide-sensitive fusion protein (NSF), a protein necessary for vesicular docking and/or fusion, was detected immunohistochemically in pinealocytes. NSF was distributed similarly to synaptophysin and vacuolar-type H(+)-ATPase (V-ATPase), marker proteins for synaptic-like microvesicles (MVs) abundantly present in pinealocytes.
Akitsugu Yamamoto +4 more
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Synaptic-like Microvesicles in Mammalian Pinealocytes
1999The recent deciphering of the protein composition of the synaptic vesicle membrane has led to the unexpected identification of a compartment of electron-lucent microvesicles in neuroendocrine cells which resemble neuronal synaptic vesicles in terms of molecular structure and function.
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