Recent Episodes
One in 9 men is diagnosed with prostate cancer in his lifetime. But black men have a 75% higher risk compared to white men. A new study shows genetics play a part and more importantly, the results can help develop a risk score to improve diagnosis and early treatment for prostate cancer. This study involved the most diverse genetic analysis of prostate cancer ever with men of Asian, African, Hispanic and European ancestries.
The prostate is a gland between the bladder and the penis and produces the fluid in semen. When scientists compared genomic data from 170,000 men with prostate cancer with 127,000 men without it, they found 86 new genetic variants. Then they modeled the data, looking at the interactions of genetic factors. They found men of African ancestry have on average twice the prostate cancer risk of men of European ancestry. Men of Asian ancestry have three quarters the risk of white men.
But they could not find markers to explain why Black men are at higher risk for more aggressive disease. Other factors could explain this including access to healthcare. The key takeaway from this study is the discovery of new genetic markers that can improve predictions for which men will get prostate cancer.
The idea is that one day a genetic test can tell men if they face a higher risk so that they can get early and frequent testing to save their lives.
More Information
Study identifies nearly 90 new genetic variations that increase prostate cancer risk
The researchers also found evidence supporting the role of germline variation in healthcare disparities related to prostate cancer...
Trans-ancestry genome-wide association meta-analysis of prostate cancer identifies new susceptibility loci and informs genetic risk prediction
Trans-ancestry genome-wide association meta-analysis of prostate cancer identifies new susceptibility loci and informs genetic risk prediction...
How does the prostate work?
The prostate is a gland about the size of a chestnut and weighs about 30 grams (about 1 ounce). It is part of the male reproductive system and is located inside the body. The prostate's most important function is the production of a fluid that, together with sperm cells from the testicles and fluids from other glands, makes up semen...
Key Statistics for Prostate Cancer
Other than skin cancer, prostate cancer is the most common cancer in American men...
Medicine...
Medicine is constantly advancing – that is a great thing about life in the 21st century. But it doesn’t just happen. Dedicated biomedical scientists are making discoveries that translate into those new medical advances.
Biomedical science is broad, encompassing everything from social science to microbiology, biochemistry, epidemiology, to structural biology and bioinformatics to name just a few areas. And, it can involve basic fundamental biology, the use of AI and chemistry to clinical studies that evaluate new medicines in patients.
No matter the research focus, the goal is always the same, to advance human health. It may take a few months, a few years or for fundamental science, a few decades. Few people make the connection that biomedical science is medicine and that biomedical scientists are working today on the medicine of tomorrow. Our weekly 500-word newspaper columns and 2-minute radio shows and podcasts provide insights into a broad range of biomedical science topics.
Medical Discovery News is dedicated to explaining discoveries in biomedical research and their promise for the future of medicine.