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BD Biosciences

BD Biosciences’ Discovery Labware division said last week that it now offers fluorescent dyes for detecting live cells and functional activities in cell-based assays.
The fluorescent dyes, calcein acetooxymethylester and DilC12(3), can be used with BD Falcon FluoroBlok cell culture inserts and insert systems to label cells for performing analyzes such as tumor cell invasion, endothelial cell migration, endothelial cell tubulogenesis, and other cell-based assays. BD said that the dyes can also be used to pre- and post-label viable cells for kinetic and endpoint experiments, and that they exhibit low toxicity.

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.