HEALTH NEWS: Provoked <b>cancer</b> in rats with <b>aloe</b> extract

American scientists have provoked the development of cancer in rats with aloe extract, reports New Scientist. Investigation was conducted by experts of the National Toxicology Program (National Toxicology Program, NTP), which is a division of the Ministry of Health. In a study conducted by NTP, laboratory rats and mice for two years was given high doses of extract of the plant Aloe barbadensis (Aloe Today, Aloe vera). Rodents fed water containing 1.5 percent by weight of aloe extract.

After the experiment, scientists found in the large intestine of animals of both benign and malignant neoplasms. Tumors developed in 74 percent of males and 39 per cent of female rats. All rodents treated with pure water, tumors in the intestine was not detected. In mice that received aloe, the researchers documented tumor growth, age-appropriate animals. However, researchers noted that rats are more suitable biological model of the human body, as in the digestive tract of mice that live bacteria are able to cleave the active components of aloe.

In further research, the scientists intend to find out which one contained in the aloe substances trigger the development of tumors in laboratory animals. First, researchers plan to study aloin A. In 2002, the Food and Drug Administration (FDA) banned the manufacture laxatives based on aloe extract containing aloin, because of its potential carcinogenicity.