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Among the population as a whole, research shows a strong link between being obese and increased risk of pancreatic cancer. Now a large new analysis suggests that obesity increases the risk of African Americans dying from pancreatic cancer, a cancer that affects African Americans more than any other racial group.
The study was published in Cancer Epidemiology Biomarkers and Prevention.
African Americans are diagnosed with and die from pancreatic cancer more than any other racial group, according to the National Cancer Institute. Previous research focusing on obesity, African Americans and pancreatic cancer included only a few study that gave conflicting findings.
For this analysis researchers pooled data from seven studies, including almost 240,000 African Americans. The studies all had used self-reported information to calculate BMI, a standard measure of body fat.
Quick: what do tea, chocolate and coffee all have in common? There’s actually a lot they share – including many cancer-protective compounds – but for all who answered caffeine, that’s the big one.
Now a research team has sequenced a draft of the genome of the coffee plant, finding that the caffeine compound has probably evolved independently of tea or chocolate. The researchers sequenced the plant Coffea canephora, which reportedly accounts for almost a third of the world’s coffee production.
The study was published on Friday in Science.
In all, the scientists identified about 25,000 protein-producing genes in the plant. (Humans have approximately 21,000 genes.) When they compared the coffee genome to the DNA of tea and chocolate they found coffee’s caffeine enzymes are more closely related to other genes within the coffee plant than to caffeine enzymes in tea and chocolate.
Compared to the grape and tomato, the coffee plant contains larger families of genes that relate to the production of flavonoid and other compounds, which contribute to the smell of coffee and are studied for their health benefits. Continue reading
Need another reason to build exercise into your week, month and so on? Here comes one, with a new analysis of the research suggesting that those who are the most aerobically fit for better heart health have almost half the risk of dying from cancer compared to those least fit. The study was published in the Annals of Oncology.
With heart disease and cancer the top two causes of death in the US, the analysis adds to a growing body of evidence that people can protect against top diseases with similar healthy lifestyles.
This study focused on a physical fitness indicator often used for heart health called cardiorespiratory or aerobic fitness. In order to produce energy, our exercising muscle cells need to pull oxygen from the blood. Cardiorespiratory fitness measures how well muscles get oxygen when exercising at a high intensity by looking at the maximal volume of oxygen used (called the VO2 max).
Cardio or aerobic exercises that get your heart rate up and your blood moving – jogging, biking and dancing — help improve your cardiorespiratory fitness. Continue reading