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Still Not an Excuse to Eat Junk Food

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A new study in the journal Gut shows that people with high levels of high-density lipoproteins — "good" cholesterol — have less of a chance of developing bowel cancer, says The Guardian. The HDL cholesterol "collects" excess bad LDL cholesterol in the blood and takes it to the liver, where it is broken down. The researchers compared information from more than 1,200 people to make their determination, but add that "the mechanism behind this association needs further elucidation."

The Scan

Pig Organ Transplants Considered

The Wall Street Journal reports that the US Food and Drug Administration may soon allow clinical trials that involve transplanting pig organs into humans.

'Poo-Bank' Proposal

Harvard Medical School researchers suggest people should bank stool samples when they are young to transplant when they later develop age-related diseases.

Spurred to Develop Again

New Scientist reports that researchers may have uncovered why about 60 percent of in vitro fertilization embryos stop developing.

Science Papers Examine Breast Milk Cell Populations, Cerebral Cortex Cellular Diversity, Micronesia Population History

In Science this week: unique cell populations found within breast milk, 100 transcriptionally distinct cell populations uncovered in the cerebral cortex, and more.