Catecholamines and granular vesicles in adrenergic axons of the developing pineal body of the rat

1968 ◽  
Vol 24 (5) ◽  
pp. 464-465 ◽  
Author(s):  
A. B. M. Machado ◽  
C. R. S. Machado ◽  
L. E. Wragg
Keyword(s):  
Pineal Body ◽  
Granular Vesicles

Don't Look in the Pineal Body

Crisis ◽  
2003 ◽  
Vol 24 (2) ◽  
pp. 85-86
Author(s):  
John T. Maltsberger
Keyword(s):  
Pineal Body

STUDIES ON A NON-MELATONIN PINEAL ANTI-GONADOTROPHIN

1972 ◽  
Vol 69 (2) ◽  
pp. 257-266 ◽  
Author(s):  
Bryant Benson ◽  
Mary Jane Matthews ◽  
Alvin E. Rodin
Keyword(s):  
Solvent Extraction ◽  
Organic Solvent ◽  
Pineal Gland ◽  
Gel Filtration ◽  
Test System ◽  
Pineal Body ◽  
Physiological Effects ◽  
Organic Solvent Extraction ◽  
Gland Function

ABSTRACT Continuing investigation of pineal gland function indicates that the anti-gonadotrophic activity of this organ cannot be attributed solely to the postulated hormone melatonin, the concentration of which is negligible in the pineal body compared to quantities required to produce unequivocal physiological effects. A non-melatonin antigonadotrophic substance recently isolated from bovine pineal glands was further purified by organic solvent extraction, ultrafiltration and gel filtration. Studies of partial blockage of compensatory ovarian hypertrophy in unilaterally ovariectomized Charles River CD-1 mice indicated that this substance is significantly more potent than melatonin in this test system.

The accumulation of noradrenaline in constricted sympathetic nerves as studied by fluorescence and electron microscopy

1967 ◽  
Vol 167 (1008) ◽  
pp. 282-292 ◽  
Keyword(s):  
Sympathetic Nerves ◽  
Close Correlation ◽  
Electron Microscopic ◽  
Hypogastric Nerve ◽  
Fluorescent Material ◽  
Dense Cores ◽  
Fluorescence And Electron Microscopy ◽  
Granular Vesicles ◽  
Electron Dense Core ◽  
Microscopic Findings

The effects of constricting post-ganglionic sympathetic nerves have been studied in the cat splenic nerve and guinea-pig hypogastric nerve. The results obtained using a fluorescence method for the histochemical localization of noradrenaline have been compared with electron microscopic findings. A close correlation was found between the accumulation of fluorescent material, attributable to noradrenaline, and of vesicles with an electron dense core (granular vesicles) believed to contain noradrenaline, proximal to the constriction in these nerves. This accumulation of noradrenaline was visible by 1 h after operation and increased rapidly in amount during the succeeding hours. It apparently reached a maximum after approximately 2 days and was found in what appeared to be newly formed axons 3 to 4 days after operation. Reserpine reduces the fluorescence and the number of vesicles with electron dense cores which accumulate proximal to the constriction. It is suggested, (1) that the fluorescent material is due, at least in part, to the presence of the granular vesicles, and (2) that the constriction has blocked the normal proximo-distal movement of noradrenaline which is believed to occur in post-ganglionic sympathetic axons.

Spontaneous pineal body tumours (pinealomas) in Wistar rats; a histological and ultrastructural study

1984 ◽  
Vol 18 (3) ◽  
pp. 224-229 ◽  
Author(s):  
A. J. Al Zubaidy ◽  
W. Malinowski
Keyword(s):  
Ultrastructural Study ◽  
Wistar Rats ◽  
Pineal Body ◽  
Related Literature ◽  
Toxicological Studies

The pathology of 5 cases of pinealomas in Wistar rats used in long-term toxicological studies is described both grossly, microscopically and ultrastructurally, together with a review of the related literature.

Effect of the Subcommissural Organ and the Pineal Body on the Adrenal Cortex

Endocrinology ◽  
1963 ◽  
Vol 72 (1) ◽  
pp. 28-32 ◽  
Author(s):  
MIKLOS PALKOVITS ◽  
PETER I. FÖLDVARI
Keyword(s):  
Adrenal Cortex ◽  
Subcommissural Organ ◽  
Pineal Body

Pineal body and urinary sodium excretion in the rat

1963 ◽  
Vol 19 (5) ◽  
pp. 264-265 ◽  
Author(s):  
A. B. M. Machado ◽  
C. R. da Silva
Keyword(s):  
Sodium Excretion ◽  
Urinary Sodium Excretion ◽  
Urinary Sodium ◽  
Pineal Body

scholarly journals Haemangiopericytoma of the pineal body.

1969 ◽  
Vol 32 (5) ◽  
pp. 445-449 ◽  
Author(s):  
J R Olson ◽  
M R Abell
Keyword(s):  
Pineal Body
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