A New research has revealed that a father’s lifestyle may impact the health of future generations; making the female children to likely develops breast cancer.
Researchers suggest fathers who eat a diet high in animal fats may raise their daughter’s risk for breast cancer.
According to the research, using rats for the experiment, the female offspring of male rats that consumed a diet high in vegetable fats, however, had a reduced breast cancer risk.
They added that if their results are confirmed in human trials, it may pave the way for new interventions to reduce the risk of breast cancer that involve modifying a father’s diet prior to conception.
A woman’s risk for breast cancer is known to be influenced by a number of factors, including a family history of the disease and inherited genetic mutations. Increasingly, researchers are uncovering how a father’s health and lifestyle may affect the breast cancer risk of offspring.
The new study builds on those findings, suggesting a woman’s breast cancer risk may be influenced by their father’s diet.
To reach their findings, the researchers fed 60 male rats either a lard- or corn oil-based, high-fat diet, from which around 60 percent of energy was derived from fat, or a control diet, from which around 16 percent of energy was fat-derived.
Fast facts about breast cancer
- Over 1 Million new cases diagnosed annually in Nigeria.
- 400,000 annual deaths recorded yearly.
- Breast Cancer is responsible for 16% of all cancer related deaths in Nigeria.
- In 2016, around 246,660 new cases of invasive breast cancer will be diagnosed in the U.S.
- More than 40,000 women will die from breast cancer this year.
- There are currently around 2.8 million breast cancer survivors in the U.S.
- 4 million women die of Breast Cancer yearly across the globe.
The researchers noted that corn oil is rich in omega-6 polyunsaturated fatty acids, while lard is high in saturated fat.
In addition, the team mated the male rats with female rats that had been fed normal chow.
The female offspring of the rats were also fed a standard diet, and, when they were 50 days old, they underwent a procedure that initiates the growth of mammary tumors.
The team then assessed tumor incidence among the female rats, as well as how long it took for tumors to emerge, the number of tumors that arose, and the volume of each tumor. This information was used as indicators for the risk of breast cancer.
Compared with the female offspring of male rats that were fed the control diet, the female offspring of those fed the high-fat diets showed reduced death of tumor cells.
However, the team found that the female offspring of male rats that had been fed the corn oil-based, high-fat diet showed a reduction in tumor growth, had fewer tumors, and had longer tumor latency – that is, it took longer for tumor growth to initiate.
Based on their results, the researchers suggest that the type of fat a man consumes may have a significant impact on their daughter’s risk for breast cancer, with the consumption of vegetable oil having a potentially preventive effect.
The researchers hypothesize that such effects may be down to altered micro- RNA and protein expressions; they found changes in such expressions in the sperm of fathers, as well as in the mammary gland tissue of their female offspring. What is more, these changes were associated with cell growth, survival, and death.
The team added that previous research has shown that exercise and dietary changes can normalize the micro-RNA expression of male rodents.
“If this is confirmed in human studies, potential breast cancer prevention strategies could be developed focusing on fathers’ diets during preconception.”