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Pancreas with cancer (red dot) Credit: Wikipedia

Pancreatic cancer is typically discovered only when it is advanced, very hard to treat, and typically with poor outcomes. Interesting recent research found that the gut microbiome is distinctive in persons with pancreatic cancer, even in the early stages. Perhaps this finding will lead to an easy noninvasive way to screen for pancreatic cancer.

Researchers in Spain and Germany looked at both the community of microbes (microbiome) living in the mouth and the gut (shown in a person's feces). They took samples from healthy persons, individuals with pancreatic cancer, and persons with chronic pancreatitis  and found that the bacteria in the stool were predictive for pancreatic cancer (but not those in the mouth).

The "fecal microbiota signature" or pattern of microbes in those with pancreatic cancer had an increase in some microbes (e.g., Fusobacterium nucleatum) and a decrease in others (e.g., Faecalibacterium prausnitzii) - when compared to healthy individuals.

By the way, Fusobacterium nucleatum is found increased in other cancers, such as colon cancer, and beneficial and anti-inflammatory Faecalibacterium prausnitzii is reduced in a number of diseases. Eating a diet rich in high fiber foods (whole grains, fruits, vegetables, legumes, seeds, nuts) increase the numbers of F. prausnitzi in a person's gut microbial community.

From Medical Xpress: Distinct gut microbial profile may identify pancreatic cancer, irrespective of stage

A specific panel of gut microbes may identify pancreatic cancer, irrespective of how far the disease has progressed, suggests research published online in the journal Gut. ...continue reading "Pancreatic Cancer Has a Distinct Gut Microbial Pattern"

This latest study finding health benefits of eating nuts was a review of 36 observational studies, involving a total of 30,000 people. Nut consumption was associated with a lower risk of cancer in general, and a decreased risk of some types of cancer (colorectal, endometrial, pancreatic), but not with type 2 diabetes. So go ahead - eat a small handful of nuts for your health at least several times a week.From Medpage Today:

A Nutty Way to Prevent Cancer?

Nut consumption was associated with a decreased risk of some types of cancer but not with type 2 diabetes in a large review.When patients eating the most nuts were compared with those eating the least, those in the first group had a lower risk of colorectal cancer in three studies (RR 0.76, 95% CI 0.61-0.96; I2=51.3%), of endometrial cancer in two studies (RR 0.58, 95% CI 0.43-0.79; I2=0%), and pancreatic cancer in one study (RR 0.68, 95% CI 0.48-0.96; I2 not available). Those results were reported in the meta-analysis of 36 observational studies, with a total population of more than 30,000 patients.

Nut consumption was also associated with a lower risk of cancer in general (RR 0.85, 95% CI 0.76-0.95;I2=66.5%), according to the authors. But it was not associated with other types of cancer or with type 2 diabetes (RR 0.98, 95% CI 0.84-1.14; I2=74.2%), found the researchers, who were led by Lang Wu, a PhD candidate at the Mayo Clinic. They published their results on June 16 in Nutrition Reviews.

"Overall, nut intake was associated with a decreased risk of cancer," wrote Wu and colleagues. "Given the scarcity of currently available data, however, evidence from additional studies is required to more precisely determine the relationship between nut consumption and risk of individual cancer types." Evidence for the association between nuts and cancer has been mixed, according to the authors. Follow-up time in the studies ranged from 4.6 years to 30 years, found the review.

The amount of nuts eaten ranged from none for some of the patients to eating nuts more than seven times a week....No associations were found between nut consumption and acute myeloid leukemia, breast cancer, gastric cancer, glioma, hepatocellular carcinoma, leukemia, lymphoma, ovarian cancer, prostate cancer, or stomach cancer.