31. Further segregation of blastomeres into the trophoblast and inner cell mass are regulated by the homeodomain protein, Cdx2. 32. The fermentation of resistant starch produces short-chain fatty acids, including acetate, propionate, and butyrate and increased bacterial cell mass . 33. Gearhart's group did similar work, but their starting cell mass came from non-living fetal tissue that had been aborted. 34. The NIH ruled last fall that present-day research is legal because investigators work only with the stem cell mass . 35. Embryonic stem ( ES ) cells are the cells of the inner cell mass of a blastocyst, an early-stage embryo. 36. That clump, the inner cell mass , ordinarily consists of stem cells that can be isolated and grown in a laboratory. 37. Exendin-4 increases beta cell mass in the pancreatic islets to improve the release of insulin to ultimately increase glucose uptake. 38. Known as embryonic germ cells, they closely resemble the embryonic stem cells that can be derived from the inner-cell mass . 39. Tissue stress mechanism able to control tissue cell mass influencing both its mitotic and apoptotic ( see Apoptosis ) activities tissue-specifically. 40. This then changes to a blastocyst, consisting of an outer layer called a trophoblast, and an inner cell mass called the embryoblast.
