A comparison of RNA concentrations and ornithine decarboxylase activity in Atlantic salmon (Salmo salar) muscle tissue, with respect to specific growth rates and diel variations

1994 ◽  
Vol 13 (6) ◽  
pp. 463-471 ◽  
Author(s):  
Steven K.A Arndt ◽  
Tillmann J. Benfey ◽  
Richard A. Cunjak
Keyword(s):  
Atlantic Salmon ◽  
Ornithine Decarboxylase ◽  
Salmo Salar ◽  
Muscle Tissue ◽  
Growth Rates ◽  
Specific Growth ◽  
Decarboxylase Activity ◽  
Ornithine Decarboxylase Activity ◽  
Diel Variations ◽  
Specific Growth Rates

Food consumption and growth in maturing Atlantic salmon (Salmo salar)

1999 ◽  
Vol 56 (11) ◽  
pp. 2019-2028 ◽  
Author(s):  
Selina M Stead ◽  
Dominic F Houlihan ◽  
H Anne McLay ◽  
Ray Johnstone
Keyword(s):  
Atlantic Salmon ◽  
Food Consumption ◽  
Salmo Salar ◽  
Growth Rates ◽  
Specific Growth ◽  
Steroid Hormone ◽  
Hormone Levels ◽  
Early Maturation ◽  
Atlantic Salmon Salmo Salar ◽  
Specific Growth Rates

Circulating levels of the steroid hormones 11-ketotestosterone (11-KT) and 17β-estradiol (E2), voluntary food intake, and growth performance were measured in individual Atlantic salmon (Salmo salar) over the year preceding their maturation as grilse. 11-KT and E2 were measured by radioimmunoassay, and X-radiography was used to measure food consumption rates. Two phases of sexual maturation were identified: the early phase (October 1992 - April 1993) was characterized by slowly rising steroid hormone levels concomitant with relatively high rates of food consumption and growth, and in the late phase (May-October 1993), steroid hormone levels increased more rapidly and growth rates decreased in association with inappetence. Significant linear relationships were observed between food consumption and specific growth rates of fish throughout the study (ANCOVA, p < 0.05). Slopes and intercepts of regressions were similar for fish during early maturation, while a lower intercept and steeper slope (ANCOVA, p < 0.05) was observed during the later stages of maturation. In November, January, February, and April, fish in which steroid hormone levels were elevated were significantly heavier than those in which hormone levels were basal. There were no significant differences in specific growth rates (except in February), food consumption, or weight-specific food conversion ratio (except in August and October) associated with maturation status.

Muscle ornithine decarboxylase activity as an indication of recent growth in pre-smolt Atlantic salmon, Salmo salar

Aquaculture ◽  
1994 ◽  
Vol 121 (1-3) ◽  
pp. 125-135 ◽  
Author(s):  
T.J. Benfey ◽  
R.L. Saunders ◽  
D.E. Knox ◽  
P.R. Harmon
Keyword(s):  
Atlantic Salmon ◽  
Ornithine Decarboxylase ◽  
Salmo Salar ◽  
Decarboxylase Activity ◽  
Ornithine Decarboxylase Activity ◽  
Atlantic Salmon Salmo Salar ◽  
Recent Growth

Food consumption, feeding behaviour, and growth of triploid and diploid Atlantic salmon, Salmo salar L., parr

1994 ◽  
Vol 72 (4) ◽  
pp. 609-617 ◽  
Author(s):  
C. G. Carter ◽  
I. D. McCarthy ◽  
D. F. Houlihan ◽  
R. Johnstone ◽  
M. V. Walsingham ◽  
...  
Keyword(s):  
Atlantic Salmon ◽  
Salmo Salar ◽  
Growth Rates ◽  
Feeding Behaviour ◽  
Specific Growth ◽  
Dorsal Fin ◽  
Atlantic Salmon Salmo Salar ◽  
Consumption Rates ◽  
Specific Growth Rates ◽  
Mixed Groups

To test whether triploid Atlantic salmon (Salmo salar L.) parr were at a disadvantage compared with diploid parr the growth and feeding behaviour of individual parr in separate and mixed groups of diploid and triploid fish were studied in two experiments. At the end of the first experiment (separate groups) the diploid parr had significantly higher mean specific growth rates than the triploid parr. This was due to significantly higher growth during the first 40 days of the experiment; growth was not significantly different over the last 52 days. The consumption rates of individual parr were measured using radiography. There were no consistent differences in consumption rates between triploid and diploid parr in mixed or separate groups. However, at the start of the experiment the mean consumption rates of the triploid parr were significantly lower than those of the diploid parr and could explain their lower growth rates. There were no differences in the amount of damage to the caudal fin between triploid and diploid parr in either experiment. However, in a mixed group, damage to the dorsal fin of triploid parr was more severe than to the dorsal fin of diploid parr, which suggested that triploid parr in mixed groups were more likely to be the recipients of agonistic actions than the diploid parr. However, the specific growth rates of the diploid and triploid parr in mixed groups were not significantly different. It was concluded that under certain circumstances. triploid and diploid Atlantic salmon parr may exhibit differences in growth and feeding behaviour.

PPAR-γ ligands induce G1 cell cycle arrest and reduce ornithine decarboxylase activity of human Barrett's adenocarcinoma cells

2001 ◽  
Vol 120 (5) ◽  
pp. A415-A415
Author(s):  
T TAKASHIMA ◽  
Y FUJIWARA ◽  
K HIGUCHI ◽  
T ARAKAWA ◽  
Y YANO ◽  
...  
Keyword(s):  
Cell Cycle ◽  
Cell Cycle Arrest ◽  
Ornithine Decarboxylase ◽  
Decarboxylase Activity ◽  
Ornithine Decarboxylase Activity ◽  
Ppar Γ ◽  
Cycle Arrest ◽  
Adenocarcinoma Cells ◽  
Barrett’S Adenocarcinoma ◽  
G1 Cell Cycle Arrest

Ornithine Decarboxylase Activity in Cultured Endothelial Cells Stimulated by Serum, Thrombin and Serotonin

1978 ◽  
Vol 39 (02) ◽  
pp. 496-503 ◽  
Author(s):  
P A D’Amore ◽  
H B Hechtman ◽  
D Shepro
Keyword(s):  
Endothelial Cells ◽  
Ornithine Decarboxylase ◽  
Decarboxylase Activity ◽  
Aortic Endothelial Cells ◽  
Ornithine Decarboxylase Activity ◽  
Rate Limiting Step ◽  
Bovine Aortic Endothelial Cells ◽  
Limiting Step ◽  
Rate Limiting ◽  
Serum Serotonin

SummaryOrnithine decarboxylase (ODC) activity, the rate-limiting step in the synthesis of polyamines, can be demonstrated in cultured, bovine, aortic endothelial cells (EC). Serum, serotonin and thrombin produce a rise in ODC activity. The serotonin-induced ODC activity is significantly blocked by imipramine (10-5 M) or Lilly 11 0140 (10-6M). Preincubation of EC with these blockers together almost completely depresses the 5-HT-stimulated ODC activity. These observations suggest a manner by which platelets may maintain EC structural and metabolic soundness.

Diurnal change in ornithine decarboxylase activity of rat liver

1972 ◽  
Vol 46 (2) ◽  
pp. 795-800 ◽  
Author(s):  
Shin-ichi Hayashi ◽  
Yoshiyuki Aramaki ◽  
Tamio Noguchi
Keyword(s):  
Ornithine Decarboxylase ◽  
Rat Liver ◽  
Diurnal Change ◽  
Decarboxylase Activity ◽  
Ornithine Decarboxylase Activity

scholarly journals ORNITHINE DECARBOXYLASE ACTIVITY AS A PROGNOSTIC MARKER FOR COLORECTAL CANCER

2007 ◽  
Vol 53 (1) ◽  
pp. 1-9 ◽  
Author(s):  
YUTAKA HOSHINO ◽  
SHINYA TERASHIMA ◽  
YASUSHI TERANISHI ◽  
MASANORI TERASHIMA ◽  
MICHIHIKO KOGURE ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Prognostic Marker ◽  
Ornithine Decarboxylase ◽  
Decarboxylase Activity ◽  
Ornithine Decarboxylase Activity
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