scholarly journals Distribution of FMRFamide-Immunoreactive Nerve Fibers in the Carotid Labyrinth of the Bullfrog, Rana catesbeiana in Corresponding Differential Interference-Contrast (Nomarski) Images.

1993 ◽  
Vol 56 (3) ◽  
pp. 277-282 ◽  
Author(s):  
Tatsumi KUSAKABE ◽  
Tadashi KAWAKAMI ◽  
Toshifumi TAKENAKA
Keyword(s):  
Rana Catesbeiana ◽  
Nerve Fibers ◽  
Differential Interference Contrast ◽  
Carotid Labyrinth

Distribution of galanin-immunoreactive nerve fibers in the carotid labyrinth of the bullfrog, Rana catesbeiana: comparison with substance P-immunoreactive fibers

1995 ◽  
Vol 281 (1) ◽  
pp. 63-67
Author(s):  
Tatsumi Kusakabe ◽  
Tadashi Kawakami ◽  
Michio Ono ◽  
Hideaki Hori ◽  
Hajime Sawada ◽  
...  
Keyword(s):  
Substance P ◽  
Rana Catesbeiana ◽  
Nerve Fibers ◽  
Carotid Labyrinth

Coexistence of substance P and calcitonin gene-related peptide in the nerve fibers of the carotid labyrinth of the bullfrog,Rana catesbeiana

1993 ◽  
Vol 603 (1) ◽  
pp. 153-156 ◽  
Author(s):  
Tatsumi Kusakabe ◽  
Tadashi Kawakami ◽  
Yutaka Tanabe ◽  
Satoshi Fujii ◽  
Yoko Bandou ◽  
...  
Keyword(s):  
Substance P ◽  
Rana Catesbeiana ◽  
Calcitonin Gene Related Peptide ◽  
Nerve Fibers ◽  
Related Peptide ◽  
Calcitonin Gene ◽  
Carotid Labyrinth

Parasympathetic postganglionic nerve fibers in the fungiform papillae of the bullfrog, Rana catesbeiana

1992 ◽  
Vol 596 (1-2) ◽  
pp. 299-304 ◽  
Author(s):  
Katsuhiro Inoue ◽  
Tomoichirou Yamaai ◽  
Yasuyuki Kitada
Keyword(s):  
Rana Catesbeiana ◽  
Nerve Fibers ◽  
Fungiform Papillae ◽  
Postganglionic Nerve

The amphibian carotid labyrinth: some anatomical and physiological relationships

1982 ◽  
Vol 60 (5) ◽  
pp. 1153-1160 ◽  
Author(s):  
Dan Toews ◽  
Graham Shelton ◽  
Robert Boutilier
Keyword(s):  
Internal Carotid ◽  
Rana Catesbeiana ◽  
Pressure Change ◽  
Underlying Mechanism ◽  
External Carotid ◽  
Head Region ◽  
Amphibian Species ◽  
Casting Technique ◽  
Blood Pressures ◽  
Carotid Labyrinth

The carotid labyrinth of 13 different amphibian species were examined using a vascular casting technique. Only Typhlonectes compressicauda, an apodan, and Necturus do not have a labyrinth although members of the lungless Plethodontidae have a very reduced labyrinth vascular network. Blood pressures recorded in the internal carotid, external carotid, and common carotid arteries of freely moving Bufo marinus and Rana catesbeiana show that the labyrinth does not affect a pressure change or have a pulse dampening effect on blood flowing to the head region. It is suggested that the labyrinth can stimulate a [Formula: see text] increase in the internal carotid artery in Bufo and Rana although the underlying mechanism remains unknown.

Cyclic AMP induces a relaxation response in the bullfrog Rana catesbeiana, but nitric oxide does not.

1997 ◽  
Vol 200 (20) ◽  
pp. 2669-2674
Author(s):  
L W Kline ◽  
M L Zhang ◽  
P K Pang
Keyword(s):  
Nitric Oxide ◽  
Nitric Oxide Synthase ◽  
Cyclic Amp ◽  
Rana Catesbeiana ◽  
Nerve Fibers ◽  
In Vitro Studies ◽  
Gallbladder Motility ◽  
Cyclic Monophosphate ◽  
Oxide Synthase

Cholecystokinin octapeptide (CCK), acetylcholine (ACh) and ceruletide have been shown to produce contraction in bullfrog (Rana catesbeiana) gallbladder strips. Agents capable of relaxing the bullfrog gallbladder are less numerous. Calcitonin gene-related peptide reduced the amount of both CCK- and ACh-induced tension in bullfrog gallbladder strips. The purpose of this study was to determine whether vasoactive intestinal peptide (VIP), nitric oxide (NO) and the second messengers cyclic GMP or cyclic AMP had any effect on gallbladder motility in the bullfrog. In vitro tension studies using l-NG-nitro-arginine methyl ester, Methylene Blue, sodium nitroprusside and N2,2'-O-dibutyryl guanosine 3',5'-cyclic monophosphate suggested that nitric oxide did not modulate gallbladder motility in the bullfrog gallbladder. Histochemical staining for NADPH diaphorase (nitric oxide synthase) failed to demonstrate nerve fibers containing nitric oxide synthase in the bullfrog gallbladder. In vitro studies demonstrated that VIP had no effect on CCK-induced tension. However, in vitro studies using either 8-bromoadenosine 3',5'-cyclic monophosphate or forskolin demonstrated that both agents relaxed strips precontracted with CCK. The results of this study suggested that, while neither NO nor VIP had a role in modulating bullfrog gallbladder motility, cyclic AMP was capable of modulating bullfrog gallbladder motility.

Distribution of galanin-immunoreactive nerve fibers in the carotid labyrinth of the bullfrog,

1995 ◽  
Vol 281 (1) ◽  
pp. 63
Author(s):  
Tatsumi Kusakabe ◽  
Tadashi Kawakami ◽  
Michio Ono ◽  
Hideaki Hori ◽  
Hajime Sawada ◽  
...  
Keyword(s):  
Nerve Fibers ◽  
Carotid Labyrinth
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