Fast- and slow-moving components

In 1942 (119), est and loore further. separated the active material obtained by Dakin, Ungley and West into two separate fractions by electrophoretic methods. Two main components have been observed, one of slow mobility and the other of greater mobility and positively charged at pH 4.0. The charge is reversed at about pH 7.0. The slow component was active and the fast practically inert. A single 40 mg. injection of the slow component prepared from a commercial extract was given to a patient and was followed in seven days by a rise of reticulocytes from 1.4 to 16.2 per cent and a rise of the red cells from 2 to 2.3 million. The amounts of the fast and slow moving components in the above preparations were divided equally. 

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See also in sourсe #XX -- [ ]

See also in sourсe #XX -- [ , ]

See also in sourсe #XX -- [ ]

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