The liver contains two systems for the removal of ammonia-the urea cycle and the enzyme glutamine synthetase. These systems are expressed in a complementary fashion in two distinct populations of hepatocytes, referred to as periportal and perivenous cells. One of the unresolved problems in hepatolog
The Cnidarian and the Canon: the role of Wnt/β-catenin signaling in the evolution of metazoan embryos
✍ Scribed by Alex Primus; Gary Freeman
- Publisher
- John Wiley and Sons
- Year
- 2004
- Tongue
- English
- Weight
- 152 KB
- Volume
- 26
- Category
- Article
- ISSN
- 0265-9247
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
Signal transduction pathways are largely conserved throughout the animal kingdom. The repertoire of pathways is limited and each pathway is used in different intercellular signaling events during the development of a given animal. For example, Wnt signaling is recruited, sometimes redundantly with o
## Abstract ## Objective Wnt signaling pathway proteins are involved in embryonic development of cartilage and bone, and, interestingly, developmental processes appear to be recapitulated in osteoarthritic (OA) cartilage. The present study was undertaken to characterize the expression pattern of W
## Abstract The neural crest is a transient population of multipotent progenitors arising at the lateral edge of the neural plate in vertebrate embryos. After delamination and migration from the neuroepithelium, these cells contribute to a diverse array of tissues including neurons, smooth muscle,