28.06.2014 Views

Modern - Blog Science Connections

Modern - Blog Science Connections

Modern - Blog Science Connections

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

INTERFERON<br />

Units/ml<br />

10<br />

0 10 20 30<br />

Hours<br />

i i<br />

IF 5 Munits/m 2 IF 5 Munits/m 2<br />

40 50<br />

Fig. 2. Interferon levels after<br />

injection 5 Megaunits/m 2 intravenously<br />

concentrations of interferon that resulted in<br />

50% inhibiton of growth in vitro were 3-10<br />

times higher than the serum levels attained.<br />

With possible further escalation of the dose,<br />

levels of 10 3 units/ml may be attainable.<br />

The study continues - it is planned to further<br />

escalate the daily dose and duration of infusions<br />

up to a maximum of 30 days. Administration<br />

of HLBI by subcutaneous injection will<br />

also be investigated.<br />

Interferon concentrations (units/ml)<br />

10<br />

% Reduction 0/ control cell numbers<br />

Median 5.7 19.1<br />

Range 0-18.3 2.5-38.0<br />

41.5<br />

8.4-60.3<br />

61.6<br />

28.2-84<br />

Table 3. The effect of interferon<br />

on cell growth and thymidine<br />

uptake in bone marrow<br />

and peripheral blood myeloblasts<br />

% Reduction o[ thymidine incorporation<br />

Median 10.4 22.8<br />

Range 0-33.2 2.4-38.1<br />

39.8<br />

12.9-59.1<br />

51.3<br />

28.8-69<br />

65

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!