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The compounds contained in the frying oils, which are reused repeatedly at high temperatures, can cause the proliferation and spread of breast tumors and move them to other parts of the body, according to a recent US study.
The study, conducted by researchers from the University of Illinois, published the findings in the latest issue of the scientific journal "Nutrition Research."
To achieve the results of the study, the team studied a group of mice, divided into two groups, the first dealing with unheated soybean oil, while the other group consumed fried foods in soy oil, which was reused for 16 weeks.
The team explained that it had chosen soybean oil because it is widely used by food companies for high temperature frying.
To simulate and monitor the spread of cancer cells, the team injected 4T1 mice into the mice, an aggressive form of breast cancer that can be automatically transmitted to multiple sites in the body, including the lungs, liver, and lymph nodes. lymphatics.
After 20 days of injection of cancer cells into mice, primitive tumors in mice repeatedly consuming re-used oils at elevated temperatures were more than 4-fold more proliferating than mice consuming oil. fresh soy. .
The researchers discovered that the consumption of chemical compounds in cooking oil, which is reused at high temperatures can result in genetic modifications that promote the development and spread of advanced breast cancer.
They added that high temperature cooking oil could act as a catalyst for toxins and promote cancer cell proliferation and changes in fat metabolism.
"When cooking oil is frequently reused, triglycerides are degraded, resulting in the oxidation of free fatty acids and the release of acrolein, a toxic chemical with carcinogenic properties," said Dr. William Hilferek, lead author of the research.
"Scientists have long known that the high-temperature recycled oil contains" aspirin ", and studies have linked high levels of this substance to various health problems, including the use of high-temperature oils. atherosclerosis and heart disease.
"The biggest fear among breast cancer survivors is the recurrence of the disease.Most of these survivors have dormant cancer cells that spread through the blood.The diet can play a role in its stimulation and creation. from a fertile environment in the various tissues of the body for the growth and spread of tumors, "he said.
According to the International Agency for Research on Cancer of the World Health Organization, breast cancer is the most common type of tumor in women, especially in the Middle East. About 1.4 million new cases are diagnosed each year, making over 450,000 Lady Year deaths around the world.
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