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tag blastocyst culture

Stem Cell Know-How
Aileen Constans | Sep 1, 2002 | 7 min read
Image: Courtesy of Gwenn-AEL Dnaet ©2002 National Academy of Sciences STEM CELL XENOGRAFT: Identification of human hepatocytes in livers from immune-deficient mice transplanted with human adult hematopoietic stem cells. Photomicrographs of NOD/SCID mouse liver sections from mice transplanted with purified human Lin-CD38-CD34-C1qRp+ cells isolated from umbilical cord blood, harvested 8-10 weeks post-transplant. Tissue sections were stained for HSA (hepatocyte-specific antigen) or c-met
Building a Better Mouse
Edyta Zielinska | Apr 1, 2010 | 10+ min read
A notoriously poor proxy for the human experience of cancer, mouse models are now undergoing a major renovation.
For Olfaction, a Hypothesis is Felled
Peter Mombaerts | Oct 24, 2004 | 6 min read
Peter MombaertsCourtesy of Peter MombaertsRarely do scientific studies claim that something is not the case. Rarer still do negative results appear in top-tier journals. Yet two recent papers in Nature describe what olfactory sensory neurons do not do.12The olfactory system is often compared to the immune system. The key cell types in each system, the olfactory sensory neuron (OSN) and the lymphocyte, can detect a wide variety of chemicals, both natural and synthetic. Chemical recognition by the
Cloning Capsized?
Ted Agres | Aug 19, 2001 | 10+ min read
Biopharmaceutical researchers fear how pending federal legislation outlawing the cloning of human cells will restrict their abilities to find cures for major degenerative diseases.1,2 Some also see lawmakers impinging on established nonhuman cloning techniques essential for the discovery of new drugs and therapies. The source of all this worry? The US House of Representatives passed July 31 by a wide margin a bill (H.R. 2505) sponsored by Reps. David Weldon (R-Fla.) and Bart Stupak (D-Mich.) th

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