Neural control of pituitary adrenal activity in Cyprinus carpio

Redgate, E. S.

doi:10.1016/0016-6480(74)90085-9

Cited by 53 publications

(17 citation statements)

References 5 publications

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“…In the present study, this source of variation was taken into account during subsequent statistical analyses of the cortisol data. Similar results were reported by Spieler & Noeske (1 978) for the goldfish, Carassius auratus, and by Redgate (1974) in the carp, Cyprinus carpio, but this effect was not apparent in rainbow trout (Barton et al, 1980). The existence of die1 variations in plasma cortisol levels have been reported for several species (see Garcia & Meier, 1973;Peter et af., 1978;Baker & Rance, 1980), although Barton et al (1980) failed to detect any such rhythm in fingerling rainbow trout.…”

Section: Discussionsupporting

confidence: 87%

Recovery of the brown trout, Salmo trutta L., from acute handling stress: a time‐course study

Pickering

Pottinger

Christie

1982

Journal of Fish Biology

434

249

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The response of the brown trout to a single, short (c. 2 min) incidence of handling stress was monitored for a period of 1 month post-stress. Significant changes were found in feeding behaviour, in the levels of plasma cortisol, glucose and lactate, in the concentration of circulating lymphocytes and in the degree of epidermal mucification. No changes were detected in the growth rate and coefficient of condition, in the levels of plasma thyroxine, in the concentrations of circulating erythrocytes, neutrophils and thrombocytes or in the thickness of the epidermis. The time-course for recovery of each parameter was examined and from this it was concluded that a minimum of 2 weeks was required for complete recovery and a return to normality.

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Section: Discussionsupporting

confidence: 87%

Recovery of the brown trout, Salmo trutta L., from acute handling stress: a time‐course study

Pickering

Pottinger

Christie

1982

Journal of Fish Biology

434

249

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“…Plasma corticoid rhythms have been suggested for various teleosts (Boehlke et al, 1966;Srivastava and Meier, 1972;Garcia and Meier, 1973;Redgate, 1974;Meier and Srivastava, 1975). Our data show a daily fluctuation in plasma corticoid levels in goldfish maintained under long photoperiods at different times of the year (Fig.…”

Section: Hormones and Monoaminesmentioning

confidence: 62%

Diurnal variations in the physiology of the goldfish,Carassius auratus

Delahunty

Olcese

Prack

et al. 1978

Journal of Interdisiplinary Cycle Research

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Liver glycogen, liver lipid, liver triglycerides, plasma glucose, plasma total lipid, plasma cholesterol, plasma corticoids, hypothalamic serotonin and pituitary prolactin levels were assayed at five times over a 24-h period in Carassius auratus maintained under a specific photoperiod regime at various times throughout the year. Diurnal variations were observed in all parameters monitored. Daily variations of liver glycogen, plasma glucose, plasma lipid, plasma corticoids and hypothalamic serotonin were affected by time of feeding. Liver glycogen, plasma lipid and plasma corticoid levels were also affected by time of feeding. Diurnal variations of liver glycogen, plasma glucose and plasma lipid were influenced by lightdark cycles. These data illustrate that feeding time, photoperiod and time of sacrifice are important considerations in the study of metabolic and hormonal parameters in fishes.

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“…The possibility of an increase in the turnover rate of cortisol in response to chronic crowding stress should not be eliminated. Chronic elevation of plasma cortisol has also been reported in carp, Cyprinus curpio, transferred from native ponds to laboratory tanks (Redgate, 1974). The increase in plasma cortisol concentrations persisted for a minimum of 42 days, and by day 133 had decreased to basal levels.…”

Section: Serum Cortisol Concentrations In Endrin-exposed Fishmentioning

confidence: 90%

The effect of sublethal endrin exposure on rainbow trout, Salmo gairdneri Richardson. I. Evaluation of serum cortisol concentrations and immune responsiveness

Bennett

Wolke

1987

Journal of Fish Biology

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Two-hundred-and-forty rainbow trout, Sulmo guirdneri. were exposed for 30 days to sublethal concentrations of the pesticide endrin. On day 30, ten fish from each treatment group were sacrificed and examined for the ability of peritoneal macrophages to phagocytize latex beads. The remaining fish were immunized with 10 pg of Yersinin ruckeri 0-antigen, and exposure to endrin continued. The migration inhibition factor assay (MIF), plaque forming cell assay (PFC), and Serum agglutination titres (SAG) were performed 2, 14. and 30 days post-antigen inoculation. Serum was collected from all fish for serum cortisol concentrations. Endrin exposure had no effect on the phagocytic ability of peritoneal macrophages. However, the MIF, PFC and SAG responses were significantly reduced from control values. Serum cortisol concentrations were found to be significantly elevated in endrin-exposed fish. Serum cortisol concentrations were found to be significantly higher on days 44 and 60 (192 and 194ng m1-I. respectively) when compared to days 30 and 32 (159 and 141 ng ml-', respectively). Cortisol values for days 30 and 32 did not differ significantly, nor did those of days 44 and 60. The relationship between elevated serum cortisol concentrations and endrin exposure on the immune response is discussed.

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Neural control of pituitary adrenal activity in Cyprinus carpio

Cited by 53 publications

References 5 publications

Recovery of the brown trout, Salmo trutta L., from acute handling stress: a time‐course study

Recovery of the brown trout, Salmo trutta L., from acute handling stress: a time‐course study

Diurnal variations in the physiology of the goldfish,Carassius auratus

The effect of sublethal endrin exposure on rainbow trout, Salmo gairdneri Richardson. I. Evaluation of serum cortisol concentrations and immune responsiveness

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