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The Pinealocyte – A Paraneuron
1979Publisher Summary This chapter describes the pinealocyte as a paraneuron and proves the usefulness of the paraneuron concept for answering questions in pineal research. Main representatives of the paraneuron family are, for example, (a) peptidergic hormoneproducing endocrine cells like the chromaffin cells of the adrenal medulla, parafollicular cells.
M. Ueck, K. Wake
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Presence of dense-core vesicles in pinealocytes of the cat
Cell and Tissue Research, 1982Dense-core vesicles, 90–200 nm in diameter, were found in pinealocytes of the cat. They were present both in perikarya and cell processes.
John T. Hansen, Michal Karasek
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Pinealocyte synaptic ribbons and neuroendocrine function
Microscopy Research and Technique, 1992AbstractA comparative study of pinealocyte synaptic ribbons (SR) revealed two predominant populations exhibiting either a rod/ribbon shape (SRr) or a spherical/punctate shape (SRsp). Species‐specific differences were found in the abundance of SR, the ratio of SRr/SRsp, and the occurrence of SR in ribbon fields.
John A. McNulty, Linda M. Fox
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Pinealocyte Projections into the Mammalian Brain Revealed with S-Antigen Antiserum [PDF]
Science, 1986 Neural processes from mammalian pinealocytes have been discovered in several brain areas. These processes were visualized immunocytochemically in the Djungarian hamster, Phodopus sungorus , with an antiserum against bovine retinal S-antigen and traced as far as the region of the posterior commissure and habenular ...
J. S. Zigler +5 more
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Novel features of hamster pinealocyte ultrastructure
Tissue and Cell, 1974Abstract Pineal glands from young adult hamsters ( Mesocricetus auratus Water-house) kept on a 12 : 12 light : dark photoperiod were examined by electron microscopy. Ultrastructural features of nuclei, mitochondria, and centrioles that have not been reported previously are presented in this paper.
Mathew J. Nadakavukaren +2 more
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Ultrastructure of pinealocytes of the cotton rat, Sigmodon hispidus
Cell and Tissue Research, 1979Fine structural features of pinealocytes of cotton rats (Sigmodon hispidus) were examined. Golgi complexes, mitochondria, endoplasmic reticulum and polysomes are usual organelles seen in the perikaryonal cytoplasm of pinealocytes. Many non-granulated vesicles (40 to 80 nm in diameter) and a few granulated vesicles (about 100 nm in diameter) are ...
Larry J. Petterborg +4 more
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Evolution and nature of the dense bodies in the chicken pinealocytes
Cells Tissues Organs, 1979The acid phosphatase reaction, applied to light and electron microscopy, was studied in the chicken pineal gland from the moment of hatching until 2 months of age. From the moment of hatching there is a great amount of acid phosphatase, which is mainly found in the vicinity of the lumen of both the recess and large follicles.
J. Boya, J. Calvo
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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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