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:6/26/2016)... ... June 26, 2016 , ... PawPaws brand pet ... product that was developed to enhance the health of felines. The formula is all-natural ... two main herbs in the PawPaws Cat Kidney Support Supplement Soft Chews ...
(Date:6/26/2016)... ... June 26, 2016 , ... ... have been diagnosed with endometriosis. These women need a treatment plan to not ... comprehensive approach that can help for preservation of fertility and ultimately achieving a ...
(Date:6/25/2016)... Austin, TX (PRWEB) , ... June 25, 2016 , ... ... Fellow of the American College of Mohs Surgery and to Dr. Russell Peckham for ... popular and highly effective treatment for skin cancer. The selective fellowship in Mohs Micrographic ...
(Date:6/25/2016)... ... June 25, 2016 , ... "With 30 hand-drawn hand gesture ... said Christina Austin - CEO of Pixel Film Studios. , ProHand Cartoon’s package ... Final Cut Pro X . Simply select a ProHand generator and drag it ...
(Date:6/25/2016)... ... June 25, 2016 , ... As a lifelong Southern ... Laude and his M.D from the David Geffen School of Medicine at UCLA. He ... Los Angeles to complete his fellowship in hematology/oncology at the UCLA-Olive View-Cedars Sinai program ...
Breaking Medicine News(10 mins):
(Date:6/24/2016)... Research and Markets has announced the addition of the ... to their offering. ... World Market for Companion Diagnostics covers the world market for ... report includes the following: , World IVD ... (N. America, EU, ROW), 2015-2020 , World IVD Companion ...
(Date:6/24/2016)... 24, 2016  Arkis BioSciences, a leading innovator ... more durable cerebrospinal fluid treatments, today announced it ... funding is led by Innova Memphis, followed by ... private investors.  Arkis, new financing will accelerate the ... market release of its in-licensed Endexo® technology. ...
(Date:6/23/2016)... Research and Markets has announced the addition ... Chemical (Sugar, Petrochemical, Glycerin), Inorganic Chemical), Functionality (Filler, Binder, ... Forecast to 2021" report to their offering. ... excipients market is projected to reach USD 8.1 Billion ... forecast period 2016 to 2021. The ...
Breaking Medicine Technology: