Cancer

Cancer :: New study focuses on radiation-associated cancer risks

To address concerns about the increased risk of radiation-induced cancer with the increasing number of cancer patients surviving long term, Herman Suit and his colleagues have examined data on radiation-induced neoplastic transformation of mammalian cells in vitro and on the risk of an increase in cancer incidence after radiation exposure in animals and in various human populations. The results of their comprehensive analyses appear in the January issue of the journal Radiation Research.

Cancer :: Low protein diet might reduce cancer risk

Researchers studying a group of vegetarians who’d maintained a diet relatively low in protein and calories found that they had lower blood levels of several hormones and other substances that have been tied to certain cancers.

Breast Cancer :: Tumor free breast tissue can have precancerous changes

A new study using mastectomy tissue shows that precancerous changes can occur in normal-appearing areas of the breast as distant as two inches from a tumor’s edge. The findings, while preliminary, might have important implications for identifying breast-cancer patients at high risk of a second tumor in the same breast.

Cancer :: Study supports a stem cell origin of cancer

Researchers at the University of Southern California (USC) recently made significant strides toward settling a decades-old debate centering on the role played by stem cells in cancer development. According to the study’s findings, which appear in an upcoming issue of Nature Genetics and now available online, genes that are reversibly repressed in embryonic stem cells are over-represented among genes that are permanently silenced in cancers; this link lends support to the increasingly discussed theory that cancer is rooted in small populations of stem cells.

Cancer :: Turning green gunk to gold, anti-cancer gold

Combining synthetic chemistry techniques with a knowledge of the properties and actions of enzymes, scientists have been able to produce an exciting class of anti-cancer drugs originally isolated from blue-green algae.

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