Navigation Links
Personalizing prostate specific antigen testing may improve specificity, reduce biopsies
Date:4/15/2013

New York, NY, April 14, 2013 Genetic variants have been identified which can increase serum prostate specific antigen (PSA) concentrations and prostate cancer risk. A new study published in The Journal of Urology reports that correcting PSA levels for these genetic variants can have significant consequences, including avoiding unnecessary biopsies for some men and eliminating false complacency for others.

In this study of 964 healthy Caucasian men, correcting individual PSA levels for these genetic variants led to an 18.3 percent reduction in the number of men who initially had a measured serum PSA above the biopsy criteria, but whose adjusted PSA fell below the cutoff value. The latter group would have likely undergone what would have been an unnecessary biopsy. Conversely, genetic correction led to PSA levels moving from below threshold to above threshold for 3.4 percent of the men, thus sending out an alert for further investigation.

"If our results are validated, adjustment for the four PSA single nucleotide polymorphisms (SNPs) could potentially prevent up to 15 percent to 20 percent of prostate biopsies. Since it has been estimated that more than 1 million biopsies are performed in the United States annually, this could translate into 150,000 to 200,000 potentially unnecessary biopsies every year," says William J. Catalona, MD, professor of urology at the Feinberg School of Medicine of Northwestern University. In addition to cost savings, fewer biopsies mean fewer adverse outcomes, such as infection, sepsis, and hospitalization.

For 98 percent of the men, genetic adjustment of PSA levels did not change outcome. However, genetic correction was important for the 17 men who were reclassified as no longer meeting biopsy criteria of PSA 2.5 ng/ml or greater and the three whose condition was up classified. The results suggest that traditional single cutoff PSA screening levels of 2.5 ng/ml or greater or 4.0 ng/ml or greater should be personalized to reflect an individual's genetic make-up.

"If confirmed, this approach could potentially be used to tailor PSA screening, possibly reducing unnecessary biopsies and avoiding delay in performing necessary biopsies," concludes Dr. Catalona and his co-investigators.


'/>"/>

Contact: Linda Gruner
jumedia@elsevier.com
212-633-3923
Elsevier Health Sciences
Source:Eurekalert

Related medicine news :

1. Personalizing medicine: New American Chemical Society Prized Science video
2. Personalizing biologic treatment to individual patients with rheuatoid arthritis is cost-effective
3. Can Selenium Lower Risk of Advanced Prostate Cancer?
4. Counting copy numbers characterises prostate cancer
5. Prostate cancer treatment study changing the way doctors practice
6. Intermittent Hormone Treatment for Prostate Cancer Not the Best
7. Black Men Often Face Delays in Prostate Cancer Care: Study
8. York scientists discover driving force behind prostate cancer
9. Is Early Baldness in Blacks a Clue to Prostate Cancer?
10. Early-onset baldness in African-American men may be linked to prostate cancer
11. Dennis R. Hill MD Announces Launch of High Dose Rate Brachytherapy of Prostate Cancer Website
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/27/2016)... (PRWEB) , ... June 27, 2016 , ... ... for mental health professionals, announced today its affiliation with Tennessee Counseling Association. ... solutions to the network of the Tennessee Counseling Association, adding exclusive benefits and ...
(Date:6/26/2016)... ... June 26, 2016 , ... On June 10-11, 2016, A Forever Recovery, ... Festival and World’s Longest Breakfast Table in Battle Creek, MI, where the rehabilitation facility ... home to some of the world’s leading providers of cereal and other breakfast foods. ...
(Date:6/25/2016)... ... June 25, 2016 , ... ... and applications at AcademyHealth’s Annual Research Meeting June 26-28, 2016, at the Hynes ... important health care topics including advance care planning, healthcare costs and patient and ...
(Date:6/25/2016)... (PRWEB) , ... June 25, 2016 , ... As a ... Magna Cum Laude and his M.D from the David Geffen School of Medicine at ... returned to Los Angeles to complete his fellowship in hematology/oncology at the UCLA-Olive View-Cedars ...
(Date:6/24/2016)... (PRWEB) , ... June 24, 2016 , ... Those who ... with these feelings, many turn to unhealthy avenues, such as drug or alcohol abuse, ... Marne, Michigan, has released tools for healthy coping following a traumatic event. , Trauma ...
Breaking Medicine News(10 mins):
(Date:6/23/2016)... -- Research and Markets has announced the ... (Organic Chemical (Sugar, Petrochemical, Glycerin), Inorganic Chemical), Functionality (Filler, ... Global Forecast to 2021" report to their offering. ... pharmaceutical excipients market is projected to reach USD 8.1 ... the forecast period 2016 to 2021. ...
(Date:6/23/2016)... Research and Markets has announced the ... 2016 - Forecast to 2022" report to their offering. ... up to date financial data derived from varied research sources ... with potential impact on the market during the next five ... comprises of sub markets, regional and country level analysis. The ...
(Date:6/23/2016)... Bracket , a leading clinical trial technology and specialty ... Bracket eCOA (SM) 6.0, at the 52 nd ... in Philadelphia , Pennsylvania.  A demonstration of ... its kind to fully integrate with RTSM, will be held ... a flexible platform for electronic clinical outcomes assessments that is ...
Breaking Medicine Technology: