Rawls, J. F., Mahowald, M. A., Ley, R. E. & Gordon, J. I. Reciprocal gut microbiota transplants
from zebrafish and mice to germ - free recipients reveal host habitat selection.
To learn
from zebrafish how to enable the adult brains to better cope with neurodegenerative disease and regenerate
These feeder cells, derived
from zebrafish testicular cancer cell lines, promote the growth of spermatagonia and stimulate them to mature into functional sperm,» said Dr. Sakai, the study's senior author and a reproductive biologist.
In addition, the significant number (> 1000) novel models that came from RNA - Seq that were absent
from the zebrafish cDNAs suggests that the deep sequencing offered by RNA - Seq can be used to expand the gene annotation of even well - studied model organisms.
Western blotting of phospho - Smad1 / 5/8
from zebrafish embryo extracts was previously described (35).
As further evidence of BMP signaling activation, proteins isolated
from zebrafish embryos were examined by immunoblotting for phosphorylated Smad1 / 5.
«New clues to treat Alagille Syndrome
from zebrafish: How Jagged genes establish liver duct cell lineage.»
The study, led by Yadong Wang, the William Kepler Whiteford Professor in Bioengineering in the Swanson School of Engineering and the principal investigator of the Biomaterials Foundry at Pitt, found that a single administration of extracellular matrices (ECM)
from zebrafish hearts restored the function of the heart and regenerated adult mouse heart tissues after acute myocardial infarction.
The researchers tested the effectiveness of ECM from normal zebrafish and
from zebrafish with damaged hearts, in which the ECM had already begun the healing process.
They found that while both types of ECM were effective in repairing damage to the mice hearts, the ECM obtained
from the zebrafish hearts that were healing were even more potent in restoring heart function in the mice.
«Regenerative potential of cells in mouse retina: Researchers use a clue
from zebrafish to discover the cues that reprogram Müller glia into retinal neurons.»
The next steps for the research group are to use what they have learned
from this zebrafish model of gut inflammation to design better probiotics to treat intestinal inflammation.
Not exact matches
Predatory bacteria can efficiently eat other gram - negative bacteria, munch through biofilms and even save
zebrafish from the jaws of an infectious death.
The design differs
from that of a conventional commercial microscope: Keller placed the laser and objective lens at right angles to each other atop a table; then he embedded
zebrafish embryos in agarose in a sample tube between the two.
The study found that
zebrafish that failed to inherit specific genetic instructions
from mom developed fatal defects earlier in development, even if the fish could make their own version of the gene.
Although reindeer noses aren't typically red, or infused with enough light to guide a sleigh, Farber says other earthly creatures are that color and glow through bioluminescence or fluorescence — everything
from jelly fish to sea anemones to the
zebrafish he studies.
The
zebrafish is a tropical, freshwater fish that comes
from Asia.
Taking the example of cocaine, researchers at Eawag, together with colleagues at Zurich University, have now shown that the uptake and distribution patterns and the effects of the drug in
zebrafish differ in many ways
from those in mammals.
Often, those smaller animals express the genetic abnormality very differently
from humans, says clinical scientist and pediatric neurologist James Dowling at the University of Michigan, Ann Arbor, who studies the myopathies and their genetic causes in both children and
zebrafish.
Zebrafish in which ctgfa was disabled had glial cells that often failed to extend into the lesions, and the fish were unable to recover
from spinal injury.
Removing a single gene
from the brains of mice and
zebrafish causes these animals to become more anxious than normal.
Similar to
zebrafish, mice in which Lef1 had been removed
from the hypothalamus showed signs of anxiety, including being smaller and a reluctance to explore.
«Although
zebrafish look quite different
from humans, they share an astonishing 70 percent of their genetic material with humans, including genes important for the formation of new heart muscle,» Yin said.
Which leaves only those poor insomniac
zebrafish, for whom I bear tidings that should have church bells ringing from one end of Zebrafish Land to the other immediately upon their receipt: Apparently, fish don't just get
zebrafish, for whom I bear tidings that should have church bells ringing
from one end of
Zebrafish Land to the other immediately upon their receipt: Apparently, fish don't just get
Zebrafish Land to the other immediately upon their receipt: Apparently, fish don't just get insomnia.
Instead of mice, it produces fluorescent
zebrafish, which are easier for the undergraduate - staffed lab to handle, in part because they go
from fertilization to free - swimming fish in a matter of days.
Mark T. Keating and his colleagues at Harvard Medical School wounded the hearts of adult
zebrafishes by surgically removing 20 percent of the muscle
from the lower chamber.
The results
from McCammon's initial screen with
zebrafish indicate that two genes in the 16p11.2 region could be key for brain development: fam57ba and doc2a.
The researchers believed that by triggering the microglia to transition
from phase 1 to phase 2 more quickly by using the drug, they could improve the
zebrafishes» regenerative capabilities.
Based on analyses of scales
from highly relevant species for aquaculture such as common carp (Cyprinus carpio), gilthead sea bream (Sparus aurata), sea bass (Dicentrarchus labrax), Mozambique tilapia (Oreochromis mossambicus), Atlantic salmon (Salmo salar), rainbow trout (Oncorhynchus mykiss) and pike perch (Stizostedion lucioperca) as well as
from fish commonly used in experimental studies such as
zebrafish (Danio rerio), it was found that glucocorticoids, especially cortisol, incorporate in fish scales over time.
These DNA elements have epigenetic functions that are similar in
zebrafish and human melanoma and could potentially be targeted with drugs to stop a mole
from becoming cancerous.
Finally, they demonstrated that
zebrafish OPCs differentiate into mature oligodendrocytes when cultured together with human motor neurons, differentiated
from induced pluripotent stem cells.
When
zebrafish with the green fluorescing endothelial gene matured, the researchers observed green FGPs on the surface of the fish's brains — confirming that these cells arose
from endothelial tissue.
National Institutes of Health researchers studying
zebrafish have determined that a population of cells that protect the brain against diseases and harmful substances are not immune cells, as had previously been thought, but instead likely arise
from the lining of the circulatory system.
In addition to fruit flies, they successfully used the program to analyze images of
zebrafish and mice, as well as data collected
from a commercial light sheet microscope and a commercial confocal microscope.
When the scientists prevented the genes
from working in
zebrafish, they failed to develop fingerlike projections called fin rays — the fishes» «hands.»
In a paper published in the journal PLOS ONE, MDI Biological Laboratory scientists Benjamin L. King, Ph.D., and Voot P. Yin, Ph.D., identified these common genetic regulators in three regenerative species: the
zebrafish, a common aquarium fish originally
from India; the axolotl, a salamander native to the lakes of Mexico; and the bichir, a ray - finned fish
from Africa.
Because these genes have the same function in
zebrafish, humans, and other tetrapods, it should help researchers further understand how our ancestors left the water and evolved limbs
from fins.
In the current study, the researchers showed that FGPs are present on the surface of the
zebrafish brain and that these blood vessel - associated FGPs do not arise
from the immune system, as had been previously thought, but
from endothelial cells themselves.
Tobin also uses
zebrafish to study bacteria closely related to those that cause tuberculosis, and findings
from this model have been applied to understanding human disease.
Ruvkun's work showed that a microRNA called let - 7 regulates maturation
from the larval stage to adulthood — and that it operates in many creatures,
from fruit flies to
zebrafish to mollusks.
New research
from a team including Carnegie's Daniel Gorelick and Marnie Halpern on the effects of these chemicals on
zebrafish shows that embryonic heart valves could be particularly in danger.
Zebrafish (Danio rerio) embryos illustrating the function of the transporter protein Abcb4 acting as effective chemical defense by keeping out chemical compounds
from the embryos.
His group also worked frantically without an electric pump to change the water in their 125 40 - liter tanks of transgenic
zebrafish, which otherwise would have died
from lack of oxygen.
«The scales of sharks and skates are very different
from the scales of
zebrafish [and other] types of bony fish,» he said.
The study, published in Nature Communications, examined the changes that occur in cancer cells as they break away
from tumours in cell cultures,
zebrafish and mice.
Sometimes referred to as the stem cells of the
zebrafish eye, Müller glia are the cells
from which all other types of retinal cells are regenerated in the fish.
Scientists
from the Max Planck Institute for Heart and Lung Research in Bad Nauheim, together with U.S. colleagues, have now observed in the embryo of the
zebrafish that muscle cells migrate
from the undamaged atrium into the ventricle and thus significantly contribute to regeneration.
The researchers placed the robot in a shared tank with shoals of live
zebrafish, aiming to determine if the fish would perceive the robot as a predator, and whether visual cues
from the robot could be used to modulate the fishes» social behavior and activity.
The resulting
zebrafish grew an extra tail — and only a tail — that extended
from its trunk.
By observing whole - brain activity in live
zebrafish, researchers
from the RIKEN Brain Science Institute have visualized for the first time how information stored as long - term memory in the cerebral cortex is processed to guide behavioral choices.