. Ciba Foundation colloquia on ageing. Old age; Aging; Animals -- growth & development. 242 N. W. Shock trend was not statistically significant. The other major electrolytes, sodium and chloride, do not show any age trend (de Billis, 1954; Herbeuval, Cuny and Manciaux, 1954; Lippi and Malerba, 1955). In our own laboratory we have found no 47 >" 45 43 o CO f a f (^ 46 O a _ 44 e 27 W * ¥ 25 E tflOj e ?3 "o^ dii. 55 65 MEAN AGE Fig. 12. Trends in the acid-base equilibrium of the blood of males with increasing age. Average curves from top to bottom include per
. Ciba Foundation colloquia on ageing. Old age; Aging; Animals -- growth & development. 242 N. W. Shock trend was not statistically significant. The other major electrolytes, sodium and chloride, do not show any age trend (de Billis, 1954; Herbeuval, Cuny and Manciaux, 1954; Lippi and Malerba, 1955). In our own laboratory we have found no 47 >" 45 43 o CO f a f (^ 46 O a _ 44 e 27 W * ¥ 25 E tflOj e ?3 "o^ dii. 55 65 MEAN AGE Fig. 12. Trends in the acid-base equilibrium of the blood of males with increasing age. Average curves from top to bottom include percentage of red cells, serum pH at 38°, carbon dioxide tension expressed in millimetres of mercury, serum bicarbonate and blood carbon dioxide content, both expressed in milli- moles per litre. The vertical lines indicate ± one standard error of the mean. Data for the 25-year de- terminations taken from: Hamilton and Shock (1936). (From: Shock and Yiengst, 1950). systematic age changes in the total osmotic pressure of the plasma or its water content. The bicarbonate content of the plasma and the pH do not show significant age trends (Shock and Yiengst, 1950). Thus, under basal conditions the kidney is able to regulate the acid-base equilibrium of the body adequately, even to advanced ages (Fig. 12). Lewis and. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Ciba Foundation; Wolstenholme, G. E. W. (Gordon Ethelbert Ward). Boston, Little, Brown
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