... affinity of unoxidized haemoglobin was strongly decreased, partly as result of the elevated concentration of cellular nucleoside triphosphates and haemoglobin associated with red cell shrinkage. Red cell pH was unchanged compared to controls, but reduced when referred to constant extracellular pH and O 2...

... the environmental water. Acid infusion of animals pre-treated with the β -adrenergic blocking agent, propranolol, induced a similar pattern of change in plasma acid-base status. However, the recovery of plasma pH and restoration of plasma [HCO 3 − ] were slower than in animals infused with acid alone. Red cell pH...

... acid production and perhaps H + influx at the gills contributed), red cell pH increased compared to control values, mainly as a result of the decrease in Hb-O 2 saturation. Plasma [Cl − ] declined, whereas [HCO 3 − ], [K + ] and [Ca 2+ ] increased. Ionic disturbances, however, were small compared...

.... 1 ). The decline in red cell pH following acid infusion (7·454 to 7·416) was less than would be expected on the basis of a passive transmembrane distribution of protons ( Fig. 3 ) and had no measureable effect on haemoglobin oxygen-carrying capacity ( Fig. 1 ) as one might predict from...

.... * Permanent address: Division of Physiology, Department of Zoology, University of Helsinki, Arkadiankatu SF-00100 Helsinki 10, Finland. 9 4 1984 © 1984 by Company of Biologists 1984 Adrenalin red cell pH red cell volume. Beta-adrenergic stimulation of avian red cells causes...