HOME >> MEDICINE >> NEWS
Medical news tips

The following news tips are based on Johns Hopkins Kimmel Cancer Center presentations made at the American Society for Therapeutic Radiation and Oncology 47th Annual Meeting October 16-20, 2005, in Denver, Colorado. For more information or to arrange interviews, contact Vanessa Wasta at 410-955-1287, wastava@jhmi.edu.

HORMONE TREATMENTS BEFORE RADIATION NOW CONSIDERED EFFECTIVE
-Mouse Studies Quell Worries from Previous Prostate Cancer Study

Radiation oncologists have eagerly anticipated a follow-up to previous studies that implied radiation treatment for prostate cancer was less effective after the use of drugs to suppress hormones. Now, Johns Hopkins Kimmel Cancer Center scientists say their tests provide evidence that hormone therapy will not diminish the value of radiation.

The root of clinicians' concerns began five years ago when studies revealed that suppressing hormones in prostate tumors destroys tiny blood vessels that carry oxygen to cells within the tumor. But oxygen also plays a critical role in biochemical pathways that help radiation kill cancer cells by immobilizing their DNA repair process. If true, these oxygen-depleted tumors would be less likely to respond to radiation.

Theodore DeWeese, M.D., professor and chair of the Department of Radiation Oncology and Molecular Radiation Sciences at Johns Hopkins, led new tests in more than 50 rats whose prostates closely resemble human ones. "We used several rigorous tests, including a small fiberoptic probe and florescence, to detect oxygen levels in the prostate, and no rat showed any indication of low oxygen levels following hormone suppression," he says. It is still unclear as to how oxygen remains in the tumor without the small blood vessels, but DeWeese believes that clinicians can be assured that hormone therapy will not cause radiation to be less effective.

(Abstract #2399, Proceedings of the Ameri
'"/>

Contact: Vanessa Wasta
wastava@jhmi.edu
410-955-1287
Johns Hopkins Medical Institutions
28-Oct-2005


Page: 1 2 3

Related medicine news :

1. Medical residents score poorly in diagnosing and managing tuberculosis
2. Medical residents unclear about TB guidelines
3. Medical students respond positively to simulated patient experience
4. Weill Cornell Medical College announces gifts totaling $400M
5. Medicalizing the human condition
6. Medical management of another condition may not lead to early cancer diagnosis
7. Elsevier partners with European Federation of Organizations for Medical Physics
8. NY-Presbyterian Hospital/Columbia University Medical Center doctors present at 2007 AUA Meeting
9. Dyson Foundation gives $5 Million for ophthalmology research at Weill Cornell Medical College
10. Medical, high-energy physicists collaborate to improve PET scans
11. Medical students should be taught about rape

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Medical news tips

(Date:11/23/2014)... 2014 (HealthDay News) -- The holidays can be a ... overload can trigger major meltdowns, an expert says. ... of circumstances, but when you have children with special ... occupational therapy professor at University of the Sciences in ... best to let your hosts or visitors know what ...
(Date:11/23/2014)... SWAccessControl.com's high quality access control power suppliers are popular ... its new collection of power suppliers. Additionally, it has ... suppliers. All the new models come with big discounts, ... Dec. 20, 2014. , SWAccessControl.com has thousands of happy ... for a long time. It is very wise to ...
(Date:11/23/2014)... DC (PRWEB) November 23, 2014 “BlackVue” ... Tech Report , which features the latest and ... technology expert and reporter for NewsWatch, conducted the product ... are unique and powerful options in the car camera ... rising and it can be hard to find the ...
(Date:11/23/2014)... November 23, 2014 BambooFlooringChina.com , the ... click strand woven bamboo flooring collection. Now, the ... to the company’s CEO, the promotion is valid until Dec. ... comes with a smooth and dust-free surface, which makes it ... in the industry, the company wants to make its website ...
(Date:11/22/2014)... 23, 2014 Cancer researchers in New ... between intercellular communication tunnels and the growth and spread ... story on the Surviving Mesothelioma website. , ... University of Minnesota have just released their study on ... materials between cells. They found that mesothelioma cells ...
Breaking Medicine News(10 mins):Health News:Holidays Can Be Sensory Overload for Kids With Autism 2Health News:Cheap Access Control Power Supplies Online Now at SWAccessControl.com, Special Offer Until Dec. 20, 2014 2Health News:A Leader in Front and Rear Facing In-Car Cameras was Featured on NewsWatch Television on October 30, 2014 2Health News:Click Strand Woven Bamboo Flooring From Famous Bamboo Flooring Company BambooFlooringChina.com 2Health News:Study Links Cellular ‘Tunnels’ to Mesothelioma Proliferation, According to Surviving Mesothelioma 2
(Date:11/22/2014)... , Nov. 21, 2014  CytoSorbents Corporation (OTCQB: ... European Union approved CytoSorb® cytokine adsorber to treat ... the Beacon of Light Award at last night,s ... Dr. Phillip Chan , Chief ... honor to be recognized by the New Jersey ...
(Date:11/22/2014)... Statistics released from a number of organizations show that ... holidays, beginning with Thanksgiving eve, which is now termed ... data, highlighted in an Infographic released by ... annual Sober Days for the Holidays public awareness ... increased rates of DUI injuries and deaths during the ...
(Date:11/22/2014)... 2014 Research and Markets  has announced the ... Report, 2014-2017" report to their offering. ... recombinant protein drug market has been expanding rapidly owing ... the like. During 2005-2013, sales of recombinant protein drugs ... of 19.1%, and it is projected that ...
Breaking Medicine Technology:CytoSorbents Wins Beacon of Light Award 2CytoSorbents Wins Beacon of Light Award 3CytoSorbents Wins Beacon of Light Award 4Alarming Stats Show Holiday Drinking an Issue for Many 2China Recombinant Protein Drug Industry Report, 2014-2017 2China Recombinant Protein Drug Industry Report, 2014-2017 3
Cached News: