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Tag: "match" at biology news

Columbine flowers develop long nectar spurs in response to pollinators

...s' nectar--happens in a way that allows flowers to match the tongue lengths of the pollinators that drink t... in many plants: the plants evolve nectar spurs to match the tongue-lengths of the pollinators. Then the process stops, and only starts again when there is a...

Research shows cord blood comparable to matched bone marrow

... try to have the donors’ and recipients’ HLA types match as closely as possible. Wagner added that increasing the inventory will increase the chance of finding donors for ethnic and racial minorities currently underrepresented in volunteer marrow registries worldwide. While the study showed that umbi...

Breakthrough developments in rheumatoid arthritis reported

...will have information on age and ethnicity to best match their groups to study. ...

Study shows lizard moms dress their children for success

...patterns at her disposal, so she can ensure a good match between back patterns and other traits that her offspring possess," said Lesley Lancaster, a UCSC graduate student and first author of the paper. Coauthor Barry Sinervo, professor of ecology and evolutionary biology, is Lancaster's adviser and ha...

Researchers discover 'acquired' DNA key to certain bacterial infection

...genes do,” he said, “and none of the DNA sequences match those in known databases.” The researchers did discover that one of the genes provides coding for a protein that targets action in the host cell, which may help the bacterium survive in the macrophage. Bermudez said the researchers learned the ...

Newly identified mechanism for silencing genes points to possible anti-cancer strategies

...i-cancer interventions. "Some microRNAs closely match their sequences against particular messenger RNA sequences to target them for destruction," explains Ramin Shiekhattar, Ph.D., a professor"in the Gene Expression and Regulation Program and the Molecular and Cellular Oncogenesis Program at Wistar and ...

NIDA study identifies genes that might help some people abstain from smoking

...oon may be able to make use of this information to match treatments with the smokers most likely to benefit from them.? ...

Gut research yields new anti-cancer approach

... at least one of the PPARgamma inhibitors does not match it. In addition, PPARgamma inhibitors do not bind to the standard tubulin-binding site that renders Taxol useless when binding sites change shapes thanks to ongoing genetic mutations. With standard anti-microtubule not an option for colorectal c...

Nanotextured implant materials: blending in, not fighting back

...the surface texture of implant materials to better match the natural texture of the endothelium, they found that endothelial cells quickly colonized the foreign surfaces, effectively camouflaging them and preventing smooth muscle cells from overgrowing the implants. Once the endothelial cells form a single...

New study challenges 'critical period' in childhood vision development

... faces amongst a background of natural scenes, and match faces by their identity. This case demonstrated that a person can acquire visual function even after being deprived of sight for an extended period during childhood. The evidence gathered from this case study presents a scientific alternative to t...

Fitness has fallen since the days of Ancient Greece

...small elite. Yet this large group, it seems, would match up well with the best of modern athletes. Either ancient Athenians had a more efficient way of rowing the trireme or they would have to be an extremely fit group. Our data raise the interesting notion that these ancient athletes were genetically bett...

Protein fragments sequenced in 68 million-year-old Tyrannosaurus rex

...tein fragments—seven in all—appear to most closely match amino acid sequences found in collagen of present ... that some of the dinosaur peptide sequences would match those of an existing species. Of the seven T. rex peptides, five were for a particular class of coll...

Novel antigen-cloning technique may boost efforts to develop a melanoma vaccine

...to transfer the HLA genes into recipient cells and match the genes to each T cell type as it permits the B cells to present the peptide to the T cells in context with their own HLA class II. Herlyn and her group now plan to use the RPL8 antigen to develop a melanoma vaccine for patients with advanced di...

Penn study on lung-infecting bacterial enzyme suggests new approach to cystic fibrosis treatment

...ps explain why the severity of CF symptoms did not match the pathological effect of the CF mutation alone. The study was published this month in the Proceedings of the National Academy of Sciences. The research, conducted by Zhe Lu, MD, PhD; Yajamana Ramu, PhD; and Yanping Xu, MD, PhD, of the Department...

Mitochondrial genes move to the nucleus -- but it's not for the sex

...e components are further separated if they mix and match haphazardly during out-crossing. Brandvain said the finding contradicts the expectation that mitochondrial genes migrate to the nucleus because of the evolutionary benefits conferred by sexual recombination. "The benefits of sex could have driven...

Engineering the heart piece by piece

...d to engineer heart muscle of any shape or size to match the area of the damaged heart muscle ?raising the possibility of engineering customized patches to meet the specific requirements of patients. All of these approaches are described in the recent review article. The new article, by Birla and lead...

Volcanic eruptions, ancient global warming linked

...s and identical ages, they were able to positively match ash layers in east Greenland with those in marine sediments in the Atlantic Ocean. "We think the first volcanic eruptions began about 61 million years ago and then it took another 5 million years for the mantle to weaken, the continent to thin and...

Scientists reveal structure of gateways to gene control

...e helix. "It is striking how well these positions match with the architecture of the DNA as it wraps around the nucleosome's protein core," Pugh said. This result powerfully simplifies previous theories about the possible architecture of gene packaging. "There is a certain DNA sequence that shapes the...

On automatic pilot

...ainly regulate reflex functions during walking and match these to the situation. Consequences for the elderly Pijpers' research opens up new possibilities for further research into the role of the cerebellum in the control of movements. Results from follow-up studies could be important for resear...

Molecular atlas provides new tool for understanding estrogen-fueled breast cancer

...nes are regulated, and may eventually help doctors match patients with treatments that are most likely to be effective for them and overcome the problem of resistance to current hormone therapies, the study authors say. The estrogen receptor (ER) is an intricate protein net in the nucleus of breast cance...

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