Diurnal changes in sympathetic nerve endings in the mouse pineal: Semiquantitative electron microscopic observations

Matsushima, Shoji; Ito, Takashi

doi:10.1007/bf01245839

Cited by 27 publications

(2 citation statements)

References 33 publications

(26 reference statements)

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“…Arrows, vesicles have been opserved in the nerve fibers of pineal organs in different vertebrates and are considered to be the storage sites of biogenic amines. Wood and Callas [1966], Etcheverry and Zieher [1968], Back et al [1970] Pellegrino de Iraldi and Suburo [1971] and Matsushima and Ito [1972] have described granulated vesicles in sympathetic nerve endings similar to those observed in viscacha. These vesicles are implicated in the storage and release of noradrenaline and serotonin or its precursors.…”

Section: Figs 9 10mentioning

confidence: 79%

A Light and Electron Microscopic Study of the Pineal Gland of the Viscacha (Lagostomus maximus maximus)

Domínguez

Piezzi

Scardapane

et al. 1987

Journal of Pineal Research

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The pineal of viscacha (Lagostomus maximus maximus) is formed by two main cellular populations of pinealocytes and interstitial cells. A connective capsule surrounds the gland sending numerous septa containing blood vessels and nerves. In the specimens collected during summer the pinealocyte displays a defined contour and a clear cytoplasm with abundant ribosomes and numerous cisternae of endoplasmic reticulum. The pinealocytes observed during winter have cytological characteristics of active cells with dense and elongated mitochondria, dense bodies, and a developed Golgi complex. These seasonal glandular changes could be related to the environmental condition and mainly to the summer photoperiod. The presence of abundant nerve terminals in the perivascular spaces suggests a neural control on the blood vessels.

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Section: Figs 9 10mentioning

confidence: 79%

A Light and Electron Microscopic Study of the Pineal Gland of the Viscacha (Lagostomus maximus maximus)

Domínguez

Piezzi

Scardapane

et al. 1987

Journal of Pineal Research

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“…Both elliptical and spherical SCV showed a nocturnal increase in an earlier study on the rat [23]. In the mouse and hamster, elliptical SCV (but not spherical SCV) exhibited a circadian rhythm opposite that of SDCV [15,23].…”

Section: Discussionmentioning

confidence: 99%

Day-Night Differences in the Vesicle Populations of Nerve Terminals in the Rat and Chick Pineal Gland

LaPorte

Fox²,

Mosher³

et al. 1990

Cells Tissues Organs

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Day-night differences in the ultrastructure of pineal neuronal elements were quantitated in the rat and the chick – two species that exhibit important differences in adrenergic control of melatonin synthesis. Area densities of small clear vesicles (40–60 nm) and small dense-cored vesicles (40–60 nm) in nerve terminals were significantly reduced during the night in the rat. In the chick, there were no day-night differences in the frequency of clear vesicles, but the number of small dense-cored vesicles tended to be greater at night. There was no effect of day-night sampling on area densities of large dense-cored vesicles (80–120 nm) in either species. These findings are consistent with biochemical evidence for day-night species differences in the adrenergic control of pineal function.

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Fine structural features of adrenergic nerve fibers and endings in the pineal gland of the rat, ground squirrel and chinchilla

Matsushima

Reíter

1977

Am. J. Anat.

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The ultrastructural features of the adrenergic nerve fibers in the pineal glands of the rat, ground squirrel and chinchilla are described. Frequency distribution histograms of diameters of granulated and non-granulated vesicles in the adrenergic nerve endings demonstrate that the pineal nerve endings in the chinchilla contain a considerable number of large granulated and non-granulated vesicles, in contrast to those in the rat and ground squirrel. Synaptic ribbons seen in the pinealocytes of the ground squirrel were often localized near that plasma membrane which lay in close proximity to the axolemma of adrenergic nerve fibers. This observation may indicate that the synaptic ribbons are involved in the functional interconnection between pinealocytes and adrenergic nerve fibers. Localized dilations of the adrenergic nerve fibers were commonly observed in the pineal glands of all species examined. In addition to a variety of axonal constituents, various forms of inclusion bodies were tightly packed within these axonal dilations. The accumulation of the inclusion bodies may represent degenerative changes which occur in the pineal adrenergic nerve fibers in relation to the functional activity of the pineal gland.

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Diurnal changes in sympathetic nerve endings in the mouse pineal: Semiquantitative electron microscopic observations

Cited by 27 publications

References 33 publications

A Light and Electron Microscopic Study of the Pineal Gland of the Viscacha (Lagostomus maximus maximus)

A Light and Electron Microscopic Study of the Pineal Gland of the Viscacha (Lagostomus maximus maximus)

Day-Night Differences in the Vesicle Populations of Nerve Terminals in the Rat and Chick Pineal Gland

Fine structural features of adrenergic nerve fibers and endings in the pineal gland of the rat, ground squirrel and chinchilla

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