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Tag: "hold" at biology news

Gut protein found to protect against infection and intestinal breakdown

...tein that binds to bile in the small intestine may hold the key to preventing infection and intestinal breakdown in people with conditions such as obstructive jaundice or irritable bowel syndrome, researchers at UT Southwestern Medical Center have discovered. "What we've identified is one of the mechani...

Insects and mammals share common fat-building pathway, study suggests

...at stores. To see whether the same pattern might hold in mammals, the team then looked to the mouse. The animals' fat cells indeed expressed genes involved in the Hh pathway. In mouse cells, treatment with an Hh protein blocked the changes normally associated with the generation of fat, while methods th...

Robot assisted surgery more accurate than conventional surgery

...research team, said: "These robots are designed to hold the surgeon's hand in the operating theatre, not take over the operation. This study shows they can be an enormous help, preventing surgeons from making mistakes. More importantly, by showing how the increased accuracy makes a difference to how well ...

Penguins waddle but they don't fall down, UH researchers say

... "It's almost like playtime for them. We can't hold them back," Kurz said. "There is one in particular that always wants to cut in front of the other penguins, so that he can walk across the mat first. It's pretty cute." Just why penguins (or pandas or kittens) seem so "cute" to humans isn't as mea...

Researchers now able to look deep into heart to view triggers of a heart's beat

...tion to making centrosomes, he said. They may also hold clues to the evolutionary origin of the Hymenoptera. Because the males of these insects develop from unfertilized eggs, they have half the number of chromosomes that females have--in technical terms, the males are haploid and the females are diploid....

Insects that produce males from unfertilized eggs reveal a surprising cellular feat

...tion to making centrosomes, he said. They may also hold clues to the evolutionary origin of the Hymenoptera. Because the males of these insects develop from unfertilized eggs, they have half the number of chromosomes that females have--in technical terms, the males are haploid and the females are diploid....

When good DNA goes bad

...t and right, and the all important base pairs that hold the DNA code zigzagging in a jagged zipper shape. Scientists call this left-hand twist Z-DNA. This is a far cry from the graceful right-hand twisted helix that has become an iconic symbol of biology. It just doesn't look right, and it doesn't act rig...

Gene-specific Ebola therapies protect non-human primates from lethal disease

...st immune system. What we did, essentially, was to hold off the viral replication long enough for the host to mount an immune response and clear the virus." Working with a class of compounds known as antisense phosphorodiamidate morpholino oligomers, or PMOs, the team first performed a series of studies...

Findings advance use of adult stem cells for replacement bone

...These results are important, not just because they hold great promise for regenerating healthy bone but also because they may be applicable to other tissues," said researcher Antonios Mikos, the John W. Cox Professor of Bioengineering and Director of Rice's Center for Excellence in Tissue Engineering. "Th...

Chemical guidance of T cells leads to immunologic memory and long-term immunity

...ce, the drivers crowd around the arrival gates and hold up signs that the passengers can read from a distance. Moreover, CD8+ T cells are chemically attracted to the cells that might activate them by the chemokines these other cells produce. Dr. Germain and his colleagues demonstrated that when CD8+ T c...

Team discovers possible 'universal strategy' to combat addiction

...juana). However, Zhang says the results could also hold true for other drugs such as cocaine, heroin, and even methamphetamine. Zhang's U of S research team is part of the Neural Systems and Plasticity Research Group, one of several interdisciplinary health sciences research groups at the University. T...

Rhinos clinging to survival in the heart of Borneo, despite poaching

...bah and the forests of the "Heart of Borneo" still hold huge tracts of continuous natural forests, which are some of the most biologically diverse habitats on Earth, with high numbers of unique animal and plant species. This is one of the world's only two places ?the other being Indonesia's Sumatra island...

HortResearch science reveals the natural potential of apples

...ch scientists over a 6 year period, the apple ESTs hold the secrets to discovering how gene function controls all aspects of fruit development, including taste, colour, vitamin content and even how fruit fight plant diseases. Fruit breeders can then use this information to create new apple varieties, tai...

How taste response is hard-wired into the brain

...ted to detecting specific tastes. Competing models hold that multiple neurons combine information to encode taste, or that the timing of patterns of taste information encodes taste. In their studies, the researchers explored the behavioral effects of activating fly taste neurons that had either of two c...

Diverse tropical forests defy metabolic ecology models

... world --over 2 million trees--and it just did not hold up anywhere," continues Muller-Landau. The CTFS team subsequently tested other metabolic ecology-based predictions relating tree size to growth and mortality against data from 10 CTFS forests, and found that those were not supported either. "The pr...

Light activated anticancer drug targeted to DNA using cisplatin like sub-units

...w supramolecules use this nitrogen-binding site to hold the light activated drug at the target until signaled to activate. Thus the new supramolecules can be delivered to the tumor site but remain inert until activated by a light signal. Light waves in the therapeutic range ?that is, those that can penetr...

UF scientists reveal ancient origin of vertebrate skeleton

... basically have a head at one end and cartilage to hold it together, but no bone. But this work says the common feature of vertebrates is not the presence or absence of bone, but the presence of a shared gene system that produces cartilage. This conclusion is illuminating and extremely important." ...

Tiny polyps gorge themselves to survive coral bleaching

... doesn't diminish the threat that bleaching events hold for the world's coral reefs. While it might survive while other species may not, on a global scale it is unlikely to re-colonize areas where less-resilient species died. "Recent projections suggest that with the current rate of warming, as much as ...

MIT chemist discovers secret behind nature's medicines

...ron-containing enzymes have three amino acids that hold the iron in the active site. In this enzyme, however, one of the typical amino acids was substituted with a much shorter one. That smaller substitute leaves more room in the active site -- enough space for the halide, in this case a chloride ion, to...

Carbon nanotube absorption measured in worms, cancer cells

...g. Carbon nanotubes were discovered in 1991, and hold great promise in several areas, including pharmacology and for hydrogen storage in fuel cells, Weber said. But despite their promise, a big problem is that it's not known how multi-walled carbon nanotubes will impact the living environment, Weber sai...

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