Premium
INVESTIGATIONS CONCERNING THE ORIGIN OF BLOOD‐PLATELETS
Author(s) -
PETRI SVEND
Publication year - 1925
Publication title -
acta pathologica microbiologica scandinavica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.909
H-Index - 88
eISSN - 1600-0463
pISSN - 0365-5555
DOI - 10.1111/j.1600-0463.1925.tb05305.x
Subject(s) - platelet , opalescence , chemistry , immunology , pathology , medicine , physics , quantum mechanics
Resumè An extensive, isolated blood‐platelet bleeding on first day of experiment produces an unproportionately considerable blood‐platelet decrease, compensated in the course of 2–6 days. Characteristic is the primary rise in haemoglobin percentage on 2nd day of experiment; likewise in one of the experiments (No. 3) the simultaneously occurring, but passing increase in the number of erythrocytes. Experiment No. 3 would, a priori, appear to be especially suited to shew tissue changes by an accentuated formation of blood‐platelets. Histological changes that might be attributable to the formation of blood‐platelets were not, however, demonstrable. Moreover, circumstances have been discovered that again refute Wright's theory. Reinjection of plasma constituents seems to produce a increase in the number of the megakaryocytes, enclosing minute marrow cells. This effect is only noticeable during the first days after the operation. In spite of the fact that the plasma removed by the bleeding is reinjected, a slight opalescence is at times observable in the specimens of plasma.