Skin color studies on tadpoles lead to cancer advance
... The humble tadpole
could provide the key to developing effective anti-skin cancer drugs, thanks to a groundbreaking discovery by researchers at the University of East An...
Cell pathway, disease linked to histone action
...in was identified that modifies H2A, which in turn regulates normal cell pathways and cell growth.
When the function of this protein was blocked in tadpole
embryos, the front-to-back body patterning that happens as they mature was altered, said Hengbin Wang, Ph.D., an assistant professor in the UAB Depart...
Biologists rediscover endangered frog population
...oo's Institute for Conservation Research was the first to breed a mountain yellow-legged frog in captivity. That amphibian has recently morphed from a tadpole
into a froglet, or juvenile frog.
"Historically, scientists have had great difficulty breeding frogs in captivity," said Jeff Lemm, an animal resear...
Carnegie's Donald Brown receives lifetime achievement award from Society for Developmental Biology
...lex problem, the control of gene expression that regulates the transformation of tadpoles into frogs. The many developmental changes that occur when a tadpole
turns into a frog are controlled entirely by thyroid hormone. By studying its role in amphibian metamorphosis, Brown and colleagues developed a strate...
Climate change effects on imperiled Sierra frog examined
...water equivalent gone by 2090.
Sierra Nevada Yellow-legged frogs need two to four years of permanent water to complete their development so repeated tadpole
mortality from lakes drying up in summer leads to population decline. The scientists found the effect to be a distinct mortality mechanism that could ...
New CU-Boulder study shows diversity decreases chances of parasitic disease
... trematodes -- tiny worms whose larvae burrow into tadpole
limb regions and disrupt normal leg development --...only tadpoles in the tanks.
But when all three tadpole
types were raised together, the toad tadpoles were...e, known as cercariae, can kill or deform a single tadpole
by forming cysts in its developing limbs, causing ...
Researchers find signal that switches on eye development -- could lead to 'eye in a dish'
...ase2) had a dramatic affect on eye development in the tadpoles grown from these embryos. When introduced in cells that would form the head area of the tadpole
multiple eyes appeared to be created. That was not the only surprise. When it was introduced in some cells that formed body parts outside the head are...
Nutrient pollution drives frog deformities by ramping up infections, says CU-Boulder study
...te in frogs rose by two- to five-times in those tanks, Johnson said.
As few as 12 trematode larvae, known as cercariae, can kill or deform a single tadpole
by burrowing into their limb regions and disrupting normal leg development, he said. A single infected snail can produce more than 1,000 cercariae in...
Leptin found to control appetite and limb development in frogs
... role in the complex signaling that turns a finned tadpole
into a four-legged frog, according to Robert Denve...se of leptin at various stages of development from tadpole
to near adult and watched what happened. As in mic... leptin is probably important to gauge whether the tadpole
has adequate energy reserves---in the form of body...
Time of day tempers tadpoles' response to predators
... To a tiny tadpole, life boils down to two basic missions: eat, and avoid being eaten. But there's a trade-off. The more a tadpole
eats, the faster it grows big enough to transform into a frog; yet finding food requires being active, which ups the odds of becoming someone else's d...
Picky female frogs drive evolution of new species in less than 8,000 years
...apparently had diverged enough during their million-year separation that offspring of southern females and northern males failed to develop beyond the tadpole
stage. Though crosses involving northern females and southern males successfully produced frogs, the offspring developed more slowly than the offsprin...
New technique measures ultrashort laser pulses at focus
... in focusing optics.
To address those issues, the new device, called SEA tadpole
(Spatial Encoded Arrangement for Temporal Analysis by Dispersing a Pair of ...ged in space and time as it focused.
Because the laser pulses enter SEA tadpole
through optical fibers, which only collect a very small portion of the ligh...
Quantitation of DNA for Automated Sequencing Using the VersaFluor Fluorometer
...ion exchange chromatography. A λZap (Stratagene)
cDNA clone for Xenopus xHif was also isolated using a homology screen
of a tadpole
library. Rescued plasmid DNA was obtained using the manufacturers
instructions and was subsequently transformed into DH5α cells. Plasm...