Mesoderm induction requires interaction between cells of the animal and vegetal hemispheres of the embryo. Several molecules have been proposed as candidates for mesoderm-inducing signals, with activin a particularly strong ...

We have analyzed the role of mesoderm in the induction of the neural crest in Xenopus using expression of neural plate (Xsox-2) and neural crest (Xslug and ADAM). Conjugation experiments using different kinds of mesoderm ...

Mesodermal tumors of the urinary tract are anusual, being leiomyoma the most frequent tumor type. We present a case of leiomyoma of the urinary bladder in a 29 year old woman and review the literature. Clinical features, ...

The forkhead type Brain-Factor 2 from mouse and chicken help pattern the forebrain, optic vesicle and kidney. We have isolated a Xenopus homolog (Xbf2) and found that during gastrulation it is expressed in the dorsolateral ...

Bilaterian embryos are triploblastic organisms which develop three complete germ layers (ectoderm, mesoderm, and endoderm). While the ectoderm develops mainly from the animal hemisphere, there is diversity in the location ...

Introduction: Neural crest (NC) is a transient embryonic cell population induced by paraxial mesoderm during gastrula stage. Previously, we have showed that Ric-8A, a guanine nucleotide exchange factor (GEF) for multiple ...

Mesodermal tumors of the urinary tract are anusual, being leiomyoma the most frequent tumor type. We present a case of leiomyoma of the urinary bladder in a 29 year old woman and review the literature. Clinical features, ...

Mesodermal tumors of the urinary tract are anusual, being leiomyoma the most frequent tumor type. We present a case of leiomyoma of the urinary bladder in a 29 year old woman and review the literature. Clinical features, ...