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Newts in Medical News

2008 AAAS Newcomb Cleveland Prize recognizes science paper on limb regeneration in newts

A United Kingdom research team's discovery of a new molecular cue that promotes limb regeneration in newts a finding that could help guide the field of regenerative medicine received the 2008 Newcomb Cleveland Prize of the American Association for the Advancement of Science (AAAS). The Assoc...
Newts in Biological News

Slicing chromosomes leads to new insights into cell division

...tion forces should be proportional to the chromosome's size, and therefore could be predictably changed by altering the size of the chromosomes. Using newts as a model organism, they cut off pieces of the chromosomes' arms. "We asked what the relationship is between the size of the fragment we removed a...

New findings on immune system in amphibians

...obably evolved from a single refugium in which the newts survived the last Ice Age. Alpine newts are primarily found in wooded hilly and mountainou... later develop. Following metamorphosis, the adult newts leave the water and overwinter under tree roots or...

First demonstration of new hair follicle generation in an animal model

...wakening genes once active only in developing embryos. These findings provide unequivocal evidence for the first time that, like other animals such as newts and salamanders, mammals have the power to regenerate. These findings are published in the May 17 issue of Nature. A better understanding of this ...

Leeches ferry infection among newts

...yophonus, which infects the muscles of red-spotted newts and other amphibians in North America. It does no... to reproduce. "This is the first evidence that newts are getting infected through the bites of leeches,...study's lead author. Early infections in the newts appear as clusters of small dark dots under the sk...

How fish mend a broken heart

...ans and fish, display an "elevated regenerative spectrum, with many more tissues capable of impressive regeneration," they said. For instance, certain newts or salamanders can regenerate limbs, spinal cord, retina, brain, and heart tissue. While progenitor cell populations have been identified within m...

Key to zebrafish heart regeneration uncovered

... damaged by disease, the Duke scientists said. "If you look in nature, there are many examples of different types of organisms, such as axolotls, newts and zebrafish, that have an elevated ability to regenerate lost or damaged tissue," said Kenneth Poss, Ph.D., senior researcher for the team, which pu...

Newts which regrow their hearts

...em cells were involved in repairing newt hearts. he process of regenerating lost extremities is different. Unlike in the process with the heart, newts develop a blastema in this case. Blastema cells have certain characteristics in common with stem cells, such as the development into different cell ty...

At the molecular level, the predator is the prey

... average human being. The only organisms on Earth that can eat T. granulosa newts and survive are some T. sirtalis garter snakes. TTX is a defensive compound...is viewed by ecologists as a defense mechanism. In the case of T. granulosa newts and T. sirtalis garter snakes, the interaction has gone far beyond that sim...

Scientists discover that three overlapping signals in embryo help get the backbone right

...t revolutionized the way biologists think about embryonic and fetal development and set the stage for the stem cell debate. That 1924 observation in newts by Hans Spemann and Hilde Mangold earned Spemann the Nobel Prize in 1935 and generated the notion that embryonic cells don't know what they'll become ...

Spleen may be source of versatile stem cells

... professor of Medicine at Harvard Medical School. She adds, "This data also shows the kind of payback that can come from studies of lower animals like newts and sponges. Combining the knowledge of Hox11's role in those animals with what we'd found about islet cell regeneration in mice helped us find this p...
Newts in Biological Definition

Larva

... not occur in the adult form. The larvae of some species can become pubescent without actually developing into the adult form (for example, in some newts ). This is called neoteny . Names of various kinds of larvae: Fresh-water mussel Glochidium Many crustaceans Nauplius Decap...
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