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Gut microbiome research and cancer treatment
Overview
Research has increasingly highlighted the connection between diet, the gut microbiome, and various health outcomes, including the efficacy of cancer treatments. Initial findings suggest that a healthy microbiome, supported by high fiber intake and fermented foods, can manage weight and reduce risks for cardiovascular and brain diseases. In oncology, studies have explored the “obesity paradox,” suggesting that specific diets and gut bacteria may interact with the immune system to enhance immunotherapy responses.
Building on this, a Mayo Clinic study published in the journal Cell has identified specific gut microbiome signatures that may serve as biomarkers for various cancers. By analyzing stool samples from 1,364 patients and comparing them with 287 healthy individuals, researchers identified 341 bacterial species associated with five major cancer groups. These microbial patterns were particularly notable in younger patients, such as those with early-onset colorectal and breast cancers.
In patients aged 50 and younger with colorectal cancer, researchers observed higher lactate levels and an increase in the bacterium Veillonella parvula. Early-onset breast cancer was associated with changes across 64 bacterial species and lower levels of primary bile acids. Other findings included a widespread loss of health-associated bacteria in neuroendocrine tumors, elevated levels of Enterococcus faecalis in liver and intrahepatic bile duct cancers, and increased levels of Streptococcus in esophageal cancer. While these associations offer potential for predicting cancer progression and chemotherapy side effects, researchers noted that the study does not prove these bacteria cause cancer.
Entities
Cell · Mayo Clinic · International Agency for Research on Cancer · The Lancet Oncology · Harvard Health
Claims
What the coverage asserts, and how many sources carry each claim.
- [● 3 SOURCES] Researchers analyzed stool samples from 1,364 cancer patients to identify microbiome patterns linked to various cancers.
- [● 3 SOURCES] Unique microbiome signatures were found associated with five major cancer groups.
- [● 3 SOURCES] Colorectal cancer patients aged 50 and younger showed higher lactate levels and increased amounts of Veillonella parvula.
- [● 3 SOURCES] Younger breast cancer patients exhibited changes in 64 bacterial species and lower primary bile acid levels.
- [○ 1 SOURCE] Approximately 2.3 million cancer cases in 2024 were linked to viruses, bacteria, or parasites.
- [○ 1 SOURCE] Infectious agents accounted for roughly one in eight new cancer diagnoses globally in 2024.
Timeline
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[HEALTH] 3 sourcesMayo Clinic researchers link gut microbiome patterns to five cancer types
A Mayo Clinic study published in Cell has identified 341 bacterial species associated with five cancer groups, offering new insights into how the gut microbiome relates to different types of tumors.
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[HEALTH] 6 sourcesMayo Clinic study identifies gut microbiome signatures as potential cancer biomarkers
Mayo Clinic researchers identified gut microbiome signatures that could predict cancer types and chemo side effects, while IARC data shows infections cause roughly one in eight global cancer cases.
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[HEALTH] 3 sourcesDiet and gut microbiome linked to improved health and cancer treatment
Diet and gut microbiome health are being linked to improved disease prevention and more effective cancer immunotherapy responses, potentially explaining the “obesity paradox” in treatment efficacy.
Sources
ciencias.uy · diariocorreo.pe · diariosanrafael.com.ar · fehmarn24.de · fitbook.de · independent.co.uk · kurierverlag.de · leinetal24.de · medinside.ch · nrz.de · scitechdaily.com · VailDaily.com
This summary has been updated 1 time: see revision history