Download what we`ve learnt about prostate cancer in 2013 – ask a urologist!

WHAT WE’VE LEARNT ABOUT PROSTATE CANCER IN 2013 – ASK A UROLOGIST!
Tuesday 17th September 2013
Source: ASIANET
Urologists diagnose and treat more than around 20,000 new cases of prostate
cancer in Australia and New Zealand each year. As one of the main causes of
cancer deaths in men, doctors and patients alike are hungry for news of the
latest research findings that shed light on the disease.
“Prostate cancer is a complex disease, and naturally there is considerable
interest in new studies that unlock information about testing, treatment and
prevention, that assist us in providing the best possible care to our
patients,” says the Urological Society of Australia and New Zealand’s
President, Dr David Winkle.
Below are some of the new things we learnt about prostate cancer in 2013.
1. A simple PSA blood test in your 40s can save your life and may reduce the
number of tests you need in the future. A new study showed a PSA
(prostate-specific antigen) test at age 45 can be used to predict a man’s
long-term risk of developing an aggressive prostate cancer. The study followed
up more than 21,000 men after 27 years and showed almost half of prostate
cancer deaths occurred in men who had recorded high PSA levels at age 45. The
study suggests these men would benefit from regular testing for changes in PSA
level until around age 70. However, for men with a lower PSA reading at around
45 (at least half of the men) it was suggested that just three lifetime PSA
tests – mid to late 40s, early 50s and 60 - are probably sufficient. “This
study confirms the Urological Society’s recommendation that men, after being
fully informed of the benefits and risks, should not wait till 50 for a first
prostate cancer test,” says Dr Winkle.
2. Genetic testing may predict risk of prostate cancer outcome. In January, a
53 year old English man was the first to have a radical prostatectomy after
discovering he carries the BRCA2 gene mutation. The BRCA gene mutations
increase the risk for a number of cancers, including prostate and breast cancer
(earlier this year Angelina Jolie underwent a double mastectomy to avoid breast
cancer). The man who sought the surgery was participating in a clinical trial,
(conducted by the Institute of Cancer Research) that involved more than 20,000
men, and has since showed that prostate cancer in men with the BRAC2 mutation
is more aggressive and more likely to be fatal. Previous results from the
trial have shown that a man with a BRAC2 mutation has an 8.6-fold risk of
developing prostate cancer, and with a BRAC1 mutation has a 3.4-fold risk.
“While new research into the role of hereditary factors and genetic testing is
unlocking new information which should prove useful in the future, the
Urological Society would not recommend a prostatectomy in a man without any
evidence of prostate cancer,” says Dr Winkle.
3. Omega-3 fish oil supplements may be harmful. A study conducted by
researchers at cancer centers across the US has found a link between Omega3
fatty acids and an increased risk of prostate cancer. The researchers expected
to find a protective factor from the presence of omega-3 fatty acids in the
blood. Instead, they found that those with the highest levels of omega-3 fatty
acids had a 43% higher risk of developing prostate cancer, and a 71% higher
chance of developing high-grade prostate cancer, which is more likely to be
fatal. “This study should not be ignored. It is a well-designed study
published in a highly-regarded journal. The Urological Society recommends men
seek medical advice about taking Omega-3 supplements,” says Dr Winkle.
4. Deep fried foods increase risk of prostate cancer. Regular consumption of
deep-fried foods such as French fries, fried chicken and donuts is associated
with an increased risk of prostate cancer and the effect appears to be slightly
stronger with regard to more aggressive forms of the disease according to a
study published this year. While previous studies have suggested that eating
foods made with high-heat cooking methods, such as grilled meats, may increase
the risk of prostate cancer, this American study is the first to examine the
addition of deep frying to the equation. It showed eating these foods at least
once a week put them at greater risk compared with men who ate such foods less
than once a month.
5. Cholesterol drugs may decrease your risk of prostate cancer. Men with
prostate cancer who take cholesterol-lowering drugs called statins are
significantly less likely to die from their cancer than men who don’t take such
medication. A recent study followed about 1000 prostate cancer patients.
Approximately 30 percent of the study participants reported using statin drugs
to control their cholesterol. After a mean follow-up of almost eight years, the
researchers found that the risk of death from prostate cancer among the statin
users was 1 percent compared with 5 percent for non-users.
6. A healthy lifestyle may guard against aggressive prostate cancer. A study,
published in Nutrition and Cancer, which followed 2000 men with newly diagnosed
prostate cancer suggests men may be able to lower their risk of being diagnosed
with highly aggressive prostate cancer by following diet and exercise
recommendations recommended by the World Cancer Research Fund (WCRF). In
particular, the researchers found that limiting consumption of red meat and
avoiding an energy-rich diet were significantly protective against aggressive
tumours. Other WCRF recommendations include: maintain a normal body mass index;
exercise daily; avoid sugary drinks; eat at least five servings of non-starchy
vegetables and fruits daily; eat at least 25 grams of unprocessed
grains/cereals and legumes daily; limit alcohol intake to two drinks per day
and limit sodium intake to less than 2.4 grams per day.
7. New drug therapies are providing increased treatment options. New research
this year demonstrated the benefits of new drugs in prolonging life and
reducing pain in men with advanced prostate cancer who had already undergone
chemo- or hormone therapy. These include Zytgia (Abiraterone) for men with
advanced prostate cancer who have previously been treated with chemotherapy.
New research published this year also showed the benefit of Abiraterone in
increasing survival rates and quality of life in men with metastatic cancer who
have not previously been treated with chemotherapy or hormone treatments. “The
emergence of these new drugs is opening up new treatment pathways for men with
advanced cancer, and new studies suggest they may be used in a variety of ways,
including in conjunction with other treatments to improve outcomes for men with
prostate cancer,” says Dr Winkle.
Media enquires, or to arrange an interview contact:
Edwina Gatenby, Maxicom Public Relations Mobile: +61 402 130 254
Email: [email protected]
The Urological Society of Australia and New Zealand is the peak professional
body for urological surgeons in Australia and New Zealand. Urologists are
surgeons who treat men, women and children with problems involving the kidney,
bladder, prostate and male reproductive organs. These conditions include
cancer, stones, infection, incontinence, sexual dysfunction and pelvic floor
problems.
SOURCE: Urological Society of Australia and New Zealand