An improved ability to detect residual leukemia, magnetic nanoparticles
October 7th, 2009 at 8:03 pm (Uncategorized)
I thought this article was interesting. It =
discusses a
new leukemia diagnostic / detection technique that should help improve =
the
ability to detect extremely small residual amounts of leukemic =
cells.
I would imagine that this method might be used to =
gather a marrow
or blood sample that would then be used with a sensitive PCR test =
for
residual leukemia.
http://www.modernmedicine.com/modernmedici=
ne/Pathology/Technique-May-Aid-Detection-of-Residual-Leukemia/ArticleNews=
Feed/Article/detail/632256?contextCategoryId=3D40165
PCR tests are sensitive to begin with and this =
technique
might be able to help make them even more sensitive. My question =
is what should
be done with an even more sensitive detection method for leukemia =
cells?
Anita’s Dr’s always seemed a bit unsure =
what to
do if a positive PCR test was to come through for her. The =
best
answer I could ever get was that “all the Dr’s oncologists =
in our
group would talk” if a positive result came through and they would =
decide
“what do to next” together. =
I actually liked the “all the Dr’s will =
talk
about what to do next” – that sounded =
reasonable.
I think that answer is code for “We don’t know what to do if =
that
happens” but we’ll do our best to make a good =
decision.
My thought is that a further improvement of PCR =
sensitivity
could offer an even earlier warning of possible relapse and the need for =
more
frequent testing upon which a decision for further treatment could be =
based if
relapse became more apparent.
I’ll leave it up to you to find, but there is =
an
earlier article on this blog that discusses the fact that a few stray =
(apparent)
leukemia cells don’t always mean a relapse is certain. =
In fact, cells that exhibit genetic markers (such =
as CD33) that
are consistent with leukemia cells are sometimes found in healthy people =
that
will never develop leukemia! Points like this help me =
understand
why Anita’s Dr’s were loathe to explain how or what =
treatment
decision would result if a positive PCR test was to come =
in.
Anita is still doing fine, in her second here of =
nursing
school now.
Chris
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