Physiology of the carbohydrates : an epicriticism / by F. W. Pavy.

Date:
1895
Catalogue details

Licence: Public Domain Mark

Credit: Physiology of the carbohydrates : an epicriticism / by F. W. Pavy. Source: Wellcome Collection.

Provider: This material has been provided by the Royal College of Physicians of Edinburgh. The original may be consulted at the Royal College of Physicians of Edinburgh.

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    tion, however, that I say that 005 per cent, is present is not strictly correct. I intentionally wrote guardedly and, instead of absolutely committing myself upon the point, stated (p. 187), that after precipitating with the neutral followed by the basic acetate of lead “If the cupric oxide reduction found to occur be read off as produced entirely by sugar, the amount of this principle ordinarily existing in healthy urine may be said to stand at about 0-5 or a little over per 1000.” Looking at the criticism also from the point of view of Baisch’s figures, it is to be noted that they refer to “ sugar as ascertained after separationIs proof forthcoming, it may be reasonably asked, that loss did not occur in the process of separation previous to estimation ? Seegen, it is to be stated, argues against the presence of sugar in normal urine (f Grlyco- genie Animale,’ Paris, 1890, p. 218), and conse- quently gives no figures to be dealt with. “The fact that glucose when injected into the blood appears in the urine has been known for long. Pavy contends that the amount of sugar in the urine is strictly proportionate to that in the blood. His experiments on p. 189 do not substantiate this thesis, and the observations of Seegen on diabetes are opposed to the conclusion.” The experiments in question are on the injection of sugar into the jugular vein and afterwards killing the animal and examining the blood and the urine where urine was procurable. Dr. Patou omits to give consideration to an important factor bearing on the matter and passes over what I say on the following