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Tag: "loose" at biology news

Genes may determine success of hip replacement surgery

...es a condition in which the artificial joint comes loose and the surrounding bone begins to dissolve. The other 71 patients had deep-seated infection, which occurs when the body is unable to control infection caused by bacteria colonising the artificial implants. DNA samples were taken from all particip...

The connector rotation hypothesis? Phage do not pack their DNA by rotation

...site direction by attaching a magnetic bead to its loose end and applying a magnetic field. Importantly, they also labeled the connector complex with fluorescent dye molecules so they could observe its motion using single-molecule fluorescence polarization spectroscopy. The researchers then looked at co...

New evidence of 'human' culture among primates

...hed, the monkeys would first search for a suitable loose stone, then hit it on a rock surface several times. The act was apparently an aggressive one, directed at Dr Moura as a potential predator, but as the group became used to his presence in the area the stone-banging decreased. Furthermore, in a lar...

Bacteria could steady buildings against earthquakes

...gineers can inject chemicals into the soil to bind loose grains together. But these epoxy chemicals may have toxic effects on soil and water, said Jason DeJong, an assistant professor of civil and environmental engineering at UC Davis. The new process, so far tested only at a laboratory scale, takes adv...

Baby fish 'smell their way home'

...egg swept around on the bottom, or new-hatched fry loose in the stream or brooded in their parents' mouths. "An egg, even a fry, hasn't a fully developed sense of smell, but it may have a way of absorbing the local molecules and then recognizing their signature as "home" when it grows up a bit and is re...

A new approach to growing heart muscle

...wing an entirely new heart from just a spoonful of loose heart cells. This week, University of Michigan researchers are reporting significant progress in growing bioengineered heart muscle, or BEHM, with organized cells, capable of generating pulsating forces and reacting to stimulation more like real mus...

Radiologists attempt to solve mystery of Tut's demise

...to the contrary. In the cranial cavity, they found loose bone fragments that were not covered with the intracranial solidified embalming material. These bone fragments matched exactly a defect within the first vertebra in the neck. They found no evidence of skull fractures. A mishap during the mummifica...

In drug design, a loose fit may be best bet

... and receptor are, the scientists conclude, with a loose connection being more effective than a tight one. ... would be the case, the researchers suggest that a loose connection between hormone and GPCR may allow a hormone to repetitively dock to and undock from its ...

Research reveals inner workings of immune system 'thermostat'

...hock and kill the host. So immune system cells let loose another protein compound to cool down the immune response. Precisely how this immune system "thermostat" operates is unclear. The leading hypothesis is that these compounds ?which act as furnace and air conditioner ?battle it out over control of th...

Scientists develop nanotech-laser treatment that kills cancer cells without harming healthy tissue

...s of near-infrared light to shake the DNA molecule loose from the carbon nanotube after they've entered the cell. The idea is to use the nanotube to deliver therapeutic molecules of DNA, RNA or protein directly into the cell nucleus to fight various infections and diseases. "Nanotechnology has long been k...

Tagging pathogens with synthetic DNA 'barcodes'

... molecule to be detected is attached to one of the loose ends of the DNA. To other ends are attached molecules of fluorescent dye in a predetermined pattern. For example, one probe might contain four molecules of green dye and one of red. Another might have three molecules of green and two of red, and so ...

Say what? Bacterial conversation stoppers

...pond by releasing a toxin, while another might cut loose from a biofilm and move on to another environment....eir toxins and excrete an enzyme to cut themselves loose from the intestine, so they can move out of the body where they can infect another person. Here, E....

Unusual antibiotics show promise against deadly 'superbugs'

...ides make themselves at home within gaps formed by loose collagen strands. This linkup opens the door to new medical treatments, Yu says, because it is easy to attach bioactive agents to the peptides. When the peptides bind with collagen, these attached agents can dramatically change the way collagen beha...

Modified collagen could yield important medical applications

...ides make themselves at home within gaps formed by loose collagen strands. This linkup opens the door to new medical treatments, Yu says, because it is easy to attach bioactive agents to the peptides. When the peptides bind with collagen, these attached agents can dramatically change the way collagen beha...

Researchers find first evidence of venom system in extinct mammal

..., but they didn't know which species of animal the loose fossils came from. The Bisonvaleus browni fossil was the first time they had seen teeth like this preserved within an intact upper and lower jaw, which is extremely rare for a specimen this old. "This just shows you that no matter how long you've be...

UCLA cancer researchers shake loose hidden biomarker

...biomarker expressed in prostate cancer, shaking it loose from one location in a cell ?where it could not be accessed by blood ?to another, easier to target area. The discovery, outlined in the cover article of May 11 edition of the peer-reviewed journal Molecular Cancer Therapeutics, could have important ...

Evidence of 600-million-year old fungi-algae symbiosis discovered in marine fossils

... that are not surrounded by filaments. "So it is a loose lichen-like association," said Xiao. "The organisms are not obliged to live together." Now there is a new question. "We know that this symbiotic relationship was forged 600 million years ago or earlier. But, was it carried over to land, or did each ...

Genpathway and Baylor College of Medicine Identify New Genes in Breast Cancer

...e type of odorant receptor are targeted to several loose clusters of neurons at specific locations in the cortex, " said Buck. In sharp contrast to the olfactory bulb, where signals from different receptors are segregated, inputs from different odorant receptors overlap extensively in the cortex. Moreover,...

Decoding the logic of olfaction

...e type of odorant receptor are targeted to several loose clusters of neurons at specific locations in the cortex, " said Buck. In sharp contrast to the olfactory bulb, where signals from different receptors are segregated, inputs from different odorant receptors overlap extensively in the cortex. Moreover,...

Norovirus, AIDS vaccine and Hepatitis Virus

...eler's diarrhea (TD). TD, defined as three or more loose stool movements in a 24-hour period, frequently results from exposure to bacterial or viral pathogens. Noroviruses (NoV's) are considered to be one of the leading causes of nonbacterial gastro-related illnesses resulting in over 23 million cases annu...

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