...E. Peschke; R. Spessert; I. Spiwoks-Becker; P. Dorner; L. Vollrath Synaptic ribbons (SRs) are electron-dense, plate-shaped synaptic organelles, to which electron-lucent synaptic vesicles (SVs) are attached by tiny stalks. In the mammalian pineal gland SRs are dynamic organelles, waxing and warning...

...Stefan Reuss The melatonin metabolism in the mammalian pineal gland is under the clear influence of sympathetic fibers originating in the superior cervical ganglia (SCG). Previous studies suggested that also pineal ‘synaptic’ ribbons (SR) are regulated by the gland’s sympathetic innervation...

...J.E. García-Mauriño; J. Boya The development of the rabbit pineal gland has been studied by light and electron microscopy from the 1st to the 120th postnatal day. After 24 h of postnatal life, the pineal parenchyma is highly cellular, showing two identifiable cell types: pinealocytes I and II...

...M.C.W. Struwe; L. Vollrath The present results show that ‘synaptic’ bodies (SB) are a heterogeneous group of organelles in the pineal glands of Artiodactyla. Basically, rod-like (ribbons) and sphere-like (spherules) SB can be distinguished. In the pig small numbers of both ‘synaptic’ ribbons (SR...

... from any ideas, methods, instructions or products referred to in the content or advertisements. Pineal gland Day-night rhythm Sympathetic terminals Rat Chick Acta Anat 1990;137:49-53 Day-Night Differences in the Vesicle Populations of Nerve Terminals in the Rat and Chick Pineal Gland...

... Rousettus Ultrastructure Pineal gland Aclaanat. 128: 194- 203(1987) © 1987 S. Karger AG. Basel 0(H) 1-5180/87/1283-0194 $2.75/0 Ultrastructure of the Pineal Gland of the Tropical Bat Rousettus leschenaulti Nada Chang", Kunwar P. BhatnagaP, Michael T. Tseng K. B. Karim1' ;l Department of Anatomy...

... in melatonin synthesis rate. To evaluate possible circadian changes of pineal noradrenergic fibre arrangement, the nerve distribution in rat and guinea pig pineal glands was visualized by means of glyoxylic acid-induced histofluorescence. Histochemical findings at 08.00 h and 24.00 h did not exhibit any...

...Bruno Cozzi The presence of luteinizing-hormone-releasing hormone (LHRH)-like and α-melanocyte-stimulating hormone (α-MSH)-like immunoreactive fibers, nerve terminals or cellular elements in the pineal gland of the sheep has been investigated by immunohistochemistry. No LHRH- or α-MSH-like...

... from any ideas, methods, instructions or products referred to in the content or advertisements. Calbindin-D28k Immunocytochemistry Pineal gland Rat Ultrastructural localization 18 01 1988 24 01 1988 15 7 2008 ActaA nat 133: 122-126(1988) © 1988 Karger AG. Basel 0001...

...Abhiram Sahu; Subrata Chakraborty In the present study, the effect of estradiol dipropionate on the cytology and mitotic activity of the pineal gland was evaluated in adult ovariectomized and juvenile bandicoot rats, Bandicota bengalensis . Estradiol treatment for 5 days inhibited the ovariectomy...

... Pineal Complex of Rats: Effects of Superficial Pinealectomy on the Deep Pineal1 U. Heidbüchel, L. Vollrath Department of Anatomy, Johannes Gutenberg University, Mainz. FRG Key Words. Pinealectomy Pineal gland Deep pineal tissue Abstract. Previous studies have shown that in rodents the pineal complex...

... confirm previous findings showing that in the pineal gland of adults mitotic activity is low. On average 22.3 mitotic figures of pinealocytes are seen per pineal gland, corresponding to a mitotic index of 0.2–0.6/1,000 pinealocytes. Mitotic activity is distinctly higher at daytime than at night...

...Ronald L. Salisbury; Richard J. Krieg; Hugo R. Seibel Light and electron microscopic studies of the nutria ( Myocastor coypus ) pineal gland revealed pinealocytes interspersed among glial, vascular, and neuronal elements. Each pinealocyte possessed a single process that terminated within...

...J. Calvo; J. Boya A study of the embryonic development of the pineal gland of the chicken was performed with the optical microscope. The time of apparition of the first outline, as a derivative of the roof of the third ventricle, was fixed at 3 days. The major portion of the pineal parenchyma...

... to persons or property resulting from any ideas, methods, instructions or products referred to in the content or advertisements. Pineal gland Chicken Ultrastructural Acta anal. 92: 202-226 (1975) Department of Histology and General Embryology, Faculty of Medicine, 1 Diversity Coniplulen.se. Madrid...