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:


(Date:8/18/2017)... ... August 18, 2017 , ... Mediaplanet today announces the launch ... lifestyles and highlighting the importance of proactive eye and ear health. The campaign ... latest innovations in hearing aid technology. , In this issue, the American ...
(Date:8/18/2017)... ... 18, 2017 , ... Radabaugh & Associates, a family managed ... North-Central West Virginia, is embarking on a cooperative charity effort with the Chestnut ... The Chestnut Mountain Ranch (CMR) is a Christ-centered boarding school for young men ...
(Date:8/18/2017)... ... August 18, 2017 , ... Goss & Associates Insurance Agency, ... commercial clients in the greater Houston region, is helping locally recognized nonprofit Addi’s ... against cancer. , Founded by Tony and Amber Bender after losing their young ...
(Date:8/18/2017)... (PRWEB) , ... August 18, 2017 , ... Yisrayl Hawkins, Pastor and Overseer at The ... says will lift the veil on false teachings pertaining to the mother of the Savior ... teach, you see a far different picture of the role of this historical woman. ...
(Date:8/18/2017)... ... August 18, 2017 , ... “Our Mountains to Climb: A ... a couple that grew stronger together through the faith they shared to overcome struggles ... is the creation of published author, Barbara J. Corcoran, a retired teacher and happily ...
Breaking Medicine News(10 mins):
(Date:8/7/2017)... (NYSE: DPLO), the nation,s largest independent specialty pharmacy, announced financial ... unless otherwise noted, are to the quarter ended June 30, ... 2017 Highlights include: Revenue of $1,126 ... Total prescriptions dispensed of 220,000, compared to 241,000 ... Gross profit per prescription dispensed of $371, ...
(Date:8/4/2017)... , Aug. 3, 2017  Agragen, LLC, ... company active in the biopharmaceutical, nutraceutical, and aquacultural ... development of its lead drug candidates, AGR131.  This ... proinflammatory cytokine from the blood of patients suffering ... and inflammatory bowel disease. ...
(Date:8/2/2017)... , Aug. 2, 2017   Marshall County Hospital in Benton, Kentucky ... reduce the risk of hospital-acquired infections (HAIs). The new addition, Tru-D SmartUVC , short ... to kill deadly pathogens such as C. diff , MRSA, MERS, Ebola and more. ... Tru-D SmartUVC ... Tru-D in action in a patient room ...
Breaking Medicine Technology:
Cached News: