. Chemical embryology. Embryology. 1196 FAT METABOLISM [PT. Ill posed in the past. Imrie & Graham, however, in view of the sudden and rapid decrease in the Hver fat after birth, thought it likely that it was utilised for some special purpose then, which may well be the • Embryonic o Maternal They next proceeded to mobilise the fatty acids of the body by giving phloridzin and by subjecting the animals to a fast. The results were as shown in Fig. 371. Evidently phloridzin and fasting will produce a fatty infiltration of the embryonic liver. The graph also shows that treatment which will not
. Chemical embryology. Embryology. 1196 FAT METABOLISM [PT. Ill posed in the past. Imrie & Graham, however, in view of the sudden and rapid decrease in the Hver fat after birth, thought it likely that it was utilised for some special purpose then, which may well be the • Embryonic o Maternal They next proceeded to mobilise the fatty acids of the body by giving phloridzin and by subjecting the animals to a fast. The results were as shown in Fig. 371. Evidently phloridzin and fasting will produce a fatty infiltration of the embryonic liver. The graph also shows that treatment which will not very greatly affect the maternal liver will have a considerable effect on that of the embryo. From the data on the iodine value it can be seen that, simultaneously with the entry of fresh fat into the embryonic liver, the iodine value of the liver fat falls, just as would be expected if such fat was coming in from the other tissues. Here again the maternal liver is hardly in- fluenced. Experiments similar to the foregoing were carried out on pregnant guinea-pigs with embryos over 40 gm. in weight, and from these it ap- peared that the physiological infiltration of about 15 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 Needham, Joseph, 1900-. New York: The MacMillan Co.
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