difference 2 2

Tag: "difference" at biology news

Growing nerve cells in 3-D dramatically affects gene expression

...ook great pains to be sure that this one-dimension difference was the only difference in the culture conditions. Team members even counted individuals cells as they went into the dishes ...

No magic tomato? Study breaks link between lycopene and prostate cancer prevention

...istically insignificant. They found no significant difference between those who had prostate cancer and those who did not in relation to the concentration of lycopene in their bloodstream. "Our results do not offer support for the benefits of lycopene against prostate cancer," Peters said. Most surprisingly,...

Individuals and populations differ in gene activity levels, not just genes

...ocks that make up living cells and tissue. "The difference between genetic information and gene expression is like the difference between computer hardware, which are the genes themselves, and computer software, which tells the co...

Cure for cancer one step closer

...e cure. Every cell contains a clue that can make a difference to tomorrow's cancer patients," he said. Queensland is well placed as a source of cancer tissue due to its diverse population, large number of aged retirees, and high-rate of some cancers, particularly melanoma. The Wesley Hospital alone had almos...

Scientists identify pancreatic cancer stem cells

...reast cancer, the researchers also discovered. The difference is in one marker, CD24, which is negative in breast cancer and positive in pancreatic cancer, according to Simeone. "These studies suggest that several stem cell markers may be shared by cancer stem cells in different tumor types, such as CD44 an...

Study suggests some drug resistance to influenza B medications

...ng, and these viruses can cause infections with no difference in duration of symptoms, level of viral shedding, or clinical outcome. Contrary to what had been hoped until now, some resistant variants are vigorous pathogens. Whether these viruses arise by spontaneous mutation or through drug selection, or whethe...

The sturdier sex? -- Study by Pittsburgh scientists finds female stem cells work better

...nal of Cell Biology, is the first ever to report a difference in regenerative capabilities of muscle stem cells ...r than the mean RI of the male cells (95). This difference may arise from innate sex-related differences in the cells?stress responses, according to Dr. Deasy,...

Researchers identify ovarian cancer biomarkers

...ing tests. Early diagnosis is crucial, marking the difference between a 95 percent survival rate for cancers found at the earliest stage and 20 percent survival among patients diagnosed with advanced disease. "All the things we could hope for are present with this approach: It has potential for diagnosis, im...

Eating with our eyes: Why people eat less at unbused tables

...nvironmental cues, finds a new Cornell study. The difference between the two groups -- those eating at a table where leftover bones accumulated compared with those whose leftovers were removed -- was greater for men than for women. "The results suggest that people restrict their consumption when evidence of ...

Individual differences in a clock gene predict decline of performance during sleep deprivation

...dentify. Researchers have now found that a genetic difference in a so-called clock gene, PERIOD3, makes some people particularly sensitive to the effects of sleep deprivation. The findings, reported by Antoine Viola, Derk-Jan Dijk, and colleagues at the University of Surrey's Sleep Research Center, appear onlin...

How trees manage water in arid environments

...ter every day the way people in Arizona do. The difference shows up in many ways. In Arizona, Brown said, if you drop a piece of ice on the kitchen floor and ignore it, in a few minutes it will be gone -- melted and then evaporated. In Indiana, if you drop a piece of ice on the floor and ignore it, the water...

Newborn brains grow vision and movement regions first

...interesting about this is it shows that the gender difference in brain size arises during prenatal brain development. It's present at birth. That gender difference is set in stone very, very early in brain development," Gilmore said. However, the scans revealed ...

Molecular differences between early and advanced melanomas could provide new drug targets

...ists have found. Understanding this key molecular difference between radial melanomas that spread on the surface of the skin and melanomas that grow vertically and invasively could provide new targets for the development of drugs to treat individuals with advanced stage melanomas. Radial melanomas that have ...

Indicators for risk of heart disease are higher in passive smokers

...attack, heart failure or stroke also made lifwttle difference in the association. Dr Venn said: "Our study shows that very low levels of exposure to second-hand smoke may be associated with appreciable increases in cardiovascular risk. While the cotinine levels were on average only about 0.1 percent of those...

Fighting to keep Darwin in the classroom

...esign' to natural selection. We aim to make a big difference in evolutionary education." Amelia McNamara, Vice President, Publishing, Life Sciences and Biomedicine at Springer, said, "Springer stands behind evolutionary theory as a fundamental component of modern science education, especially now since the ...

Stability of mRNA/DNA and DNA/DNA duplexes modulates mRNA transcription

...es than potential antisense RNA/DNA duplexes. "The difference between stability of sense and antisense mRNA/DNA is a property that can aid gene discovery," explains Stoynov. "Thermodynamic stability of nucleic acid duplexes depends primarily on thermodynamic properties of nearest-neighbor nucleotide interact...

Canadian study shows bilingualism has protective effect in delaying onset of dementia by four years

...rs, while the bilingual group was 75.5 years. This difference remained even after considering the possible effect of cultural differences, immigration, formal education, employment and even gender as influencers in the results. "There are no pharmacological interventions that are this dramatic," says Dr. Free...

Scientists discover new life forms in the Arctic Ocean

...this group from known organisms is as great as the difference between land plants and animals," adds the scientist. Over this last year the team has been scouring data bases, verifying their results and applying new techniques to their samples. They can now confirm that these new life forms are abundantly dis...

No carrier necessary: This drug delivers itself

...Our published data in animal models demonstrate no difference in drug activity with the nanocrystal formulation,?said Ravindra Pandey, Ph.D., Distinguished Professor of Biophysical Sciences at RPCI and a co-author on the paper. “This is a case where the easiest formulation works the best,?added Indrajit Roy...

Proteins important in Alzheimer's, Parkinson's disease travel in the slow lane

...d fast and slow components, with a 200 to 300 fold difference in average velocities," says first author Subhojit Roy, MD, PhD, a neuropathologist and Research Associate in the Department of Pathology and Laboratory Medicine. "While scientists have seen proteins in the fast component move rapidly to the tip of t...

1 2 3 4 5 6 7 8 9 10