Study Links Common Dental Issue to Breast Cancer

A new study has found a surprising connection between oral health and breast cancer. Researchers discovered that a common bacterium related to gum disease can enter the bloodstream and settle in breast tissue. There, it causes DNA damage and helps tumours grow and spread faster.

The study, by John Hopkins Kimmel Cancer Center and Bloomberg-Kimmel Institute, also showed that this bacterium makes cancer cells more aggressive and resistant to treatment. Dr Dipali Sharma explained that the team wanted to explore the connection between this oral microbe and breast cancer because previous studies suggested a link.

Dr Sheetal Parida, a researcher, said they aimed to uncover the deeper connections. Their work involved using mouse models and human breast cancer cells to understand how the bacterium affects tissue. When the bacterium entered breast ducts, it caused inflammation and DNA damage, boosting tumour growth.

The research identified a biological process where the bacterium damaged DNA and triggered repair systems that could lead to errors. These errors, combined with increased levels of a protein linked to cancer cell movement, make cells more resistant to chemotherapy.

The study highlighted the need for more research to see if good oral health can impact breast cancer risk. Dr Sharma noted that their findings point to multiple risk factors, with the bacterium possibly working alongside genetic mutations to increase breast cancer development.

How much do you know?

Which institution conducted the study on the connection between oral health and breast cancer?

Harvard University

Johns Hopkins Kimmel Cancer Center

Stanford University

Mayo Clinic

What type of microbe is related to gum disease and linked to breast cancer?

Virus

Fungus

Bacterium

Parasite

What is one effect of the bacterium found in breast tissue?

Reduces tumour size

Causes DNA damage

Enhances immune response

Lowers inflammation

Who explained the connection between the oral microbe and breast cancer?

Dr John Hopkins

Dr Dipali Sharma

Dr Sheetal Parida

Dr Bloomberg

What does the bacterium do to cancer cells according to the study?

Makes them less aggressive

Makes them more resistant to treatment

Halts their growth

Decreases their spread

What was used to study the bacterium's effects in the research?

Cell cultures only

Mouse models and human breast cancer cells

Human trials

Mathematical models

The study found that good oral health is definitively linked to lower breast cancer risk.

True False

The researchers used mouse models to understand how the bacterium affects breast tissue.

True False

Dr Sheetal Parida is a researcher involved in the study.

True False

The bacterium makes cancer cells less aggressive according to the findings.

True False

The study showed clear evidence that genetic mutations are unrelated to breast cancer development.

True False

Inflammation and DNA damage caused by the bacterium boost tumor growth.

True False

The bacterium can enter the bloodstream and settle in breast tissue, causing DNA damage and boosting tumor .

Researchers found a connection between oral health and breast cancer through a common related to gum disease.

The study highlighted the need for more research to see if good oral health can impact breast cancer .

When the bacterium entered breast ducts, it caused and DNA damage.

The research identified a biological process where the bacterium damaged DNA and triggered repair that could lead to errors.

The study aimed to explore deeper connections, particularly how the bacterium might work alongside genetic to increase breast cancer development.

This question is required