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Tag: "clusters" at biology news

Brightening prospects of using fluorescent nanotubes in medical applications

...eveloped a selective method for attaching the gold clusters to the surface of tumors and then exposing them to...ve an easy way to identify the locations where the clusters attach. Nanotubes should work as well as gold clusters as microscopic blow torches while their fluor...

Genetic factors are linked to fever following smallpox vaccination

...s after vaccination. The authors analyzed 19 gene clusters (called haplotypes) linked to the body’s response ...llpox vaccination is associated with specific gene clusters in the interleukin-1 (IL-1) gene complex on chromosome 2 and the interleukin-18 gene on chromosome 1...

Protein enables discovery of quantum effect in photosynthesis

...ture : its ribbon-like backbone wraps around three clusters of seven chlorophylls, just like a taco shell around ground beef. The structure also is referred to as trimeric because of the three clusters. The protein, which comes from a photosynthetic bacterium that lives in extremely high temperatures, e...

Leeches ferry infection among newts

...uthor. Early infections in the newts appear as clusters of small dark dots under the skin, which can later develop into a large area of swollen muscle. The swollen muscle contains many spores (also called spherules), each of which contains hundreds of infectious cells called endospores. Raffel and his col...

Paper challenges 1491 Amazonian population theories

...water for several thousands of years. We looked at clusters of lakes and landscapes where people lived, and asked, did they leave their homesite to farm around other nearby lakes? No they didn't. These findings argue for a very localized use of Amazonian forest resources outside the main, known, archaeologica...

Vitamins: Science doesn't always match policy

...uggestion that multivitamins should be composed of clusters of vitamins and minerals that are presently supported by research to benefit public health. "We really need to encourage good study design and to establish indicators of efficacy and safety in vitamin research," he concludes. "At best, the research n...

Darwin's famous finches and Venter's marine microbes

...with every other available DNA fragment to produce clusters of related sequences. This exhaustive analysis predicted more than 6 million proteins in the GOS data ?nearly twice the number of all proteins ever described before ?and laid the groundwork for further studies. Manning, a co-author on Yooseph’s pa...

No carrier necessary: This drug delivers itself

...ion the molecules aggregate, but not into such big clusters that they settle to the bottom. "It's a controlled formation of a colloidally stable suspension of nanosized crystals,?explained Tymish Ohulchanskyy, Ph.D., UB senior research scientist and a co-author. The researchers originally were investigati...

Scientists to track impact of Asian dust and pollution on clouds, weather, climate change

...s to screen thousands of genes at once to look for clusters of genes that may be involved in disease. Although there are many approaches to studying how different nerve cells in the brain react to stimuli from the environment, this mouse model is the first to be able to provide real-time mapping of brain c...

Common algae helps illustrate mammalian brain electrical circuitry

...s to screen thousands of genes at once to look for clusters of genes that may be involved in disease. Although there are many approaches to studying how different nerve cells in the brain react to stimuli from the environment, this mouse model is the first to be able to provide real-time mapping of brain c...

Scientists discover a new risk factor for Alzheimer's

...need to go back and look in the regions around the clusters of SNPs that we tracked and see if we can find additional genetic changes that are either unique or enriched in the individuals with Alzheimer's," said St George-Hyslop. "Then we'll have the actual genetic variations that lead to the disease." Aft...

The origin of the brain lies in a worm

...thworm have a rope-ladder-like chain of nerve cell clusters on their belly side. Other invertebrates on the other hand have their nerve cells distributed diffusely over their body. Yet, all these species descend from a common ancestor called Urbilateria. If this ancestor already possessed a nervous system, wh...

Tears reveal some of their deepest secrets to researchers

...unteers. The meibomian glands are tiny, grape-like clusters of cells that line the rim of our upper and lower eyelids ?the outlets to these glands are roughly adjacent to the eyelashes. Researchers gently pressed the volunteers' lower eyelids and collected droplets of meibum in tiny glass tubes. The resear...

Pacific Rim researchers to collaborate on distributed bioinformatics analysis of avian flu

...: JLU will support the scheduling of multiple clusters (CSF4) to distribute jobs transparently at multiple sites around the region; AIST will support the deployment of Gfarm in conjunction with researchers at the University of Tsukuba; KISTI in conjunction with researchers at KU in Korea will create ...

Microfluidic chip helps solve cellular mating puzzle

...isolate and conduct experiments on extremely small clusters of cells. "The level of control we can achieve on the conditions affecting just a few cells is unbelievable," Levchenko said. "This is far beyond what you can do in a traditional biology lab dish that’s filled with a large colony of cells." Using ...

Targeting tumors the natural way

... recognition, the immune response occurs only when clusters of many alpha-Gal molecules are present for anti-Gal to bind with. Armed with this knowledge, Kiessling's group modified an agent known to bind tightly to integrin and tethered it to alpha-Gal. When they mixed this molecule with cells displaying h...

Brown team finds crucial protein role in deadly prion spread

...major role in deadly prion diseases by smashing up clusters of these infectious proteins, creating the "seeds"...rion complexes. Once converted, the thinking goes, clusters of "bad" or infectious protein are smashed into smaller bits, a process that creates "seeds" so that...

Genomics throws species definition in question for microbes

...ed into robust, definable, biologically meaningful clusters that adhere to the concept of species. The acquisition of draft-quality genome sequences for all type strains to help advance the integration of genomic information into our understanding of microbial diversity and enable researchers to map phen...

How fish conquered the ocean

...neage-specific gene duplication to form paralogous clusters that correlate to the pelagic and benthic character of the eggs. The alteration in the function (neo-functionalization) of one of the duplicated genes (paralogues) allowed its yolk protein products to be broken down to free amino acids and thus drive...

RNA map provides first comprehensive understanding of alternative splicing

...ook these 50 RNA transcripts and searched them for clusters of sequences they had previously identified as Nov...rch revealed four discrete peaks where the binding clusters locate. Furthermore, the location of the peaks correlated with Nova's action on regulating whether t...

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