The first functional studies in fish and frog showed that TBP2 is indispensable for embryonic development [ 84, 85].
Earlier studies in the frog showed that the expression of foxi1e is controlled by interaction of vegT, bmp and notch signalling, and, in turn, foxi1e is needed to form both neural and epidermal ectoderm (Mir et al., 2008; Mir et al., 2007; Suri et al., 2005).
Histology and electrophysiology studies in frogs show that identification of sites of CA activity can serve as markers for locations of CO2 chemosensitivity in the olfactory epithelium.
For example, studies on cold water fish and frogs show that genetic lineage divergence coincided with tectonic events (e.g., the uplift of the Ailao Mountains and the QTP), and the lineages were persistent and stable or experienced partial secondary contact during the Pleistocene [ 4, 7, 8].
It has been mentioned in similar studies of norepinephrine and epinephrine under the stress of hemorrhage and dehydration in frogs showed that the higher tolerance to hemorrhage and dehydration could be in part due to the greater adrenal development and activity [ 24].
Sequencing of the PCR products from the livers of each of the frogs showed that a 488 bp portion of the MCP gene was 100% identical between the two viruses and 97.57% identical to the corresponding portion of the genome of FV3, the type species of the genus Ranavirus.
In addition, knockdown studies in fish and frogs showed that TBP2 is indispensable for embryonic development [ 8, 12] and is preferentially required for the transcription of embryonic vertebrate-specific genes and those involved in ventral specification during gastrulation in Xenopus [ 9].
Here, we describe the electrophysiological property associated with intracellular Ca2+ signaling in frog parathyroid cells and show that Ca2+-activated Cl− channels are activated by intracellular Ca2+ increase through an inositol 1,4,5-trisphophate (IP3 -independent pathway.
He's published numerous studies purporting to show that clawed frogs exposed to low doses of atrazine produce males with ambiguous genitalia and soprano-like croaks--hermaphrodites.
Our data for the Western clawed frog PXR show that this receptor, similar to African clawed frog PXRs [ 7, 49], may be sensitive only to benzoates and close analogs.
