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Archive for September, 2013

Philadelphia Inquirer article on “Scientists study using low-dose radiation” – radon.gal@gmail.com – Gmail

Tuesday, September 10th, 2013

Philadelphia Inquirer article on “Scientists study using low-dose radiation” – radon.gal@gmail.com – Gmail.

Response by Mohan Doss – used with permission:

Mohan Doss

Sep 9 (1 day ago)

to Patricia
Dear Pat,
FYI: Recently a reporter from our local newspaper Philadelphia Inquirer interviewed me over phone for about an hour talking about my work in the area of low dose radiation.   I was somewhat apprehensive about what may be in the article she was about to write, as I have observed sometimes that such articles in popular media have inaccuracies that detract from the story.Her article appeared yesterday in the newspaper with the title “Scientists study using low-dose radiation” available at the link: http://articles.philly.com/2013-09-08/news/41876116_1_radiation-exposure-low-dose-radiation-ionizing-radiation.  Though the article has a few technical inaccuracies in details, it is indeed correct in the overall message it conveys about the current state of the art in this area, in my opinion.  The conclusion of the article regarding low dose radiation is ambiguous and unclear because of dismissive statements of “experts”, not data.  Certainly the overall message is more realistic than the usual ones appearing in popular media about the risk of cancer from low dose radiation, e.g. from CT scans.  Hence, I am pleased with the article, though I would have phrased it somewhat differently.
With best regards,
Mohan–
Mohan Doss, Ph.D., MCCPM
Medical Physicist,
Associate Professor, Diagnostic Imaging,
Fox Chase Cancer Center, R427
333 Cottman Avenue,
Philadelphia, PA 19111-2497.
Phone: 215 214-1707
Fax:   215 728-4755
E-mail:  Mohan.Doss@fccc.edu

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Scientists study using low-dose radiation – Philly.com

Tuesday, September 10th, 2013

Scientists study using low-dose radiation – Philly.com.

POSTED: September 08, 2013

In very rare cases, using radiation to kill the primary tumor of a patient with metastatic cancer leads to the disappearance of tumors throughout the body.

Scientists can’t explain this amazing collateral effect, but it seems to activate an antitumor immune response.

Mohan Doss, a medical physicist at Fox Chase Cancer Center, believes the distant tumors melt away because of incidental low-dose rays emanating from the high-dose therapy. And that bolsters a theory he has researched for years: radiation at or slightly above natural background levels can stimulate the body’s disease-fighting defenses.

“When you have high-dose radiation, it suppresses the immune system,” he said. “Low doses actually enhance the immune system.”