Topography and immunohistochemistry of the ultimobranchial glands in some subtropical fishes

1999 ◽  
Vol 46 (2) ◽  
pp. 219-222 ◽  
Author(s):  
Yuichi Sasayama ◽  
Takahiro Matsubara ◽  
Kazunori Takano
Keyword(s):  
Ultimobranchial Glands

Isolation and Determination of the Amino Acid Sequence of Chicken Calcitonin I from Chicken Ultimobranchial Glands

1986 ◽  
Vol 100 (2) ◽  
pp. 459-467 ◽  
Author(s):  
Tamotsu HOMMA ◽  
Motoo WATANABE ◽  
Sachio HIROSE ◽  
Akira KANAI ◽  
Kenji KANGAWA ◽  
...  
Keyword(s):  
Amino Acid ◽  
Amino Acid Sequence ◽  
Ultimobranchial Glands

Amino acid composition of salmon calcitonin

1969 ◽  
Vol 47 (8) ◽  
pp. 823-825 ◽  
Author(s):  
R. K. O'Dor ◽  
C. O. Parkes ◽  
D. H. Copp
Keyword(s):  
Biological Activity ◽  
Amino Acid ◽  
Amino Acid Composition ◽  
Acid Composition ◽  
Salmon Calcitonin ◽  
Ultimobranchial Glands

Calcitonin has been extracted from salmon ultimobranchial glands and purified. The amino acid composition indicates similarities to mammalian calcitonin but the salmon hormone has 25 times the biological activity of the most active mammalian material.

ACCUMULATION OF NICOTINE IN PANCREATIC ISLETS AND CALCITONIN-PRODUCING CELLS IN MICE AND CHICKS DEMONSTRATED BY MICRO- AND WHOLE-BODY AUTORADIOGRAPHY

1973 ◽  
Vol 58 (1) ◽  
pp. 21-NP ◽  
Author(s):  
PREMYSL SLANINA ◽  
HANS TJÄLVE
Keyword(s):  
Pancreatic Islets ◽  
Biogenic Amines ◽  
Whole Body ◽  
High Accumulation ◽  
Metabolic Studies ◽  
Whole Body Autoradiography ◽  
Parafollicular Cells ◽  
Ultimobranchial Glands ◽  
Endocrine Organs

SUMMARY By autoradiographic methods, nicotine was shown to be specifically accumulated in the pancreatic islets in mice. The results also indicated a high accumulation of nicotine in the parafollicular cells of the thyroid in mice and an accumulation was also shown in the ultimobranchial glands in chicks. Like the parafollicular cells of the thyroid in mammals, the ultimobranchial glands of birds are known to produce calcitonin. Metabolic studies with nicotine in vitro and autoradiographic studies with the main nicotine-metabolite cotinine, indicated an accumulation of unchanged nicotine (not metabolites) in the cells. The results are discussed in view of the fact that biogenic amines have been shown to be operative in these endocrine organs. It is suggested that nicotine can share common transport and/or storage mechanisms with biogenic amines in the cells. An effect of nicotine on hormone storage and/or release may take place via an interference with aminergic mechanisms in the cells.

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