Standards of the constituents of the urine and blood and the bearing of the metabolism of Bengalis on the problems of nutrition / by D. McCay.

  • McCay, David, 1873-
Date:
1908
Catalogue details

Licence: In copyright

Credit: Standards of the constituents of the urine and blood and the bearing of the metabolism of Bengalis on the problems of nutrition / by D. McCay. Source: Wellcome Collection.

    44/80 (page 36)
    accidental circumstances the investigations had to be dropped after the fourth day; but, as the results are of importance regarding the minimal proteid intake necessary for nitrogenous equilibrium, we reproduce them in Table XI. This table is of interest from another point of view as, we believe, it is the first time a nitrogen balance sheet has been worked out in India :— Table XI. No. Weight. Kilos. Nitrogen intake. Urine in C.Cs. Sp. Gr. Nitrogen in Urine. Nitrogen Faeces. Freering- point of Urine in C°. Chlorides of Urine in grms. 1 6r8i 7'8i 1570 1013 3-93 1-38 —1*25 !7*S6 61-40 9-46 1490 loll 5-73 x*54 —1*14 - 16-68 61-62 7-81 1370 1013 5*91 1 *61 —1-24 17-81 61-62 9-46 XO05 1017 6*33 2-31 -1-48 13-16 2 50 10-56 1980 1008 6go 2-31 — -92 14*65 50 10-56 2670 IC09 00 va 1-82 — roo 22-69 50-5 1056 1830 1012 7-68 1-28 —1-24 I9-2I 50*5 10-56 3090 1010 10-39 2*63 —no 29*35 No. i.—Nitrogen intake during four days under observation. Nitrogen output during four days under observation. Nitrogen balance for the four = days. No. 2.—Nitrogen intake during four days under observation. Nitrogen output during four days under observation. Nitrogen balance for the four = days. = 34'54 grammes. = 33'74 + o-8o Urine Faeces =42-24 „ = 41-73 „ /Urine (.Faeces + 051 „ 26-90 grmms. 6-84 „ 33'69 „ 8-04 „ While these observations were not of sufficient duration to provide a com- plete standard for comparison, they afford very exact information, and it will be instructive to analyse the results in the light of the knowledge already obtained from the two hundred observations on students and servants. The amount of nitrogen metabolised during the four days by No. 1 was 36*90 grms., or an average daily amount of 6*72 grms. His average body-weight being 61*50 kilos; we find this is equivalent to the metabolism of 0*109 grm. of nitrogen per kilo, of body-weight. Translating this into terms of proteid it