While the precipitin tests do not differentiate, according to the results of previous workers, between the serum proteins of man and chimpanzee, a clear-cut differentiation between the blood cells of man and the anthropoids was obtained by means of hemagglutinins. According to our tests on bloods of whites and negroes, ...

A combined morphological and metabolic study has been made of the lymphoid cells in the blood during the immune response in man. Similar changes were observed in both primary and secondary responses to a number of different microbial antigens. The cellular response involved an increase in numbers of three types ...

The relationship between certain physicochemical properties of circulating immune complexes and their ability to localize in vessel walls during a state of increased permeability was studied. The ability to become deposited was related to the large size of complexes, rather than to their net charge or to a specific affinity ...

Cholesterol-3-(3)H,4-(14)C was injected intravenously in man and its transformation to cholestanol was studied. From the (3)H: (14)C ratios in cholestanol isolated from blood, evidence for the participation of a ketonic intermediate in the conversion was obtained. In a second subject given cholestanol-3-(3)H,4-(14)C the (3)H: (14)C ratios in blood sterols remained ...

Cardiac operations under direct vision, employing extracorporeal circulation for heart-lung by-pass, are dependent for success on two major factors: (1) The use of an apparatus capable of maintaining optimal blood flow without toxifying the blood during its extracorporeal circuit, and (2) The ability of the surgeon to correctly assay the ...

Removal of blood plasma by plasmapheresis from dogs made hypoproteinemic by injections of gum acacia over long periods of time, has resulted in the removal of more gum acacia than was originally present in the plasma. Gum acacia injections had been discontinued previous to the start of the experiments, and ...

A new method has been described for the study in vivo of thrombus formation in blood circulating extracorporeally in an artificial loop. This method permits of control of many factors, and hence of intensive study of thrombus formation under many and varied conditions. It admits of separate study of the ...

While the precipitin tests do not differentiate, according to the results of previous workers, between the serum proteins of man and chimpanzee, a clear-cut differentiation between the blood cells of man and the anthropoids was obtained by means of hemagglutinins. According to our tests on bloods of whites and negroes, ...

1. As has been found by other investigators, when a large amount of dextrose is injected intravenously into a normal dog it disappears from the circulating blood in about 90 minutes after the end of the injection. Varying amounts (an average of 60 per cent) are excreted in the urine. ...

The development of the collateral circulation after ligation of the innominate and right common carotid arteries for subclavian aneurysm was studied in two cases by measuring the rate of blood flow in the hand's from time to time. In a woman, sixty-eight years old, the flow in the right hand ...

1. The blood flow in the feet is smaller per unit of volume of the part than in the hand, the ratio of foot flow to hand flow per 100 cubic centimeters of the part usually lying in normal persons between 1 to 3 and 1 to 2. 2. In ...