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Tag: "date" at biology news

Human albumin from tobacco plants

...biomass we have, the more albumin we can get". To date all the trials undertaken with tobacco plants have been with laboratory varieties. The aim is to do tests with commercial varieties. Laboratory plants are very small and, as a result, the quantity of albumin extracted is not sufficient. However, the ...

Antioxidant selenium offers no heart-disease protection

...trial, the only large randomized clinical trial to date to examine selenium supplementation alone in the prevention of CVD, appear in the April 15 issue of the American Journal of Epidemiology. Saverio Stranges, M.D., Ph.D., assistant professor of social and preventive medicine in the School of Public He...

Male rivalry increases when females at most fertile, say researchers

...eir female partner used oral contraception and the date of her current or previous menses. Male participants whose partners did not use oral contraception and were near ovulation rated masculine faces more dominant than those participants with partners who did use oral contraception and were not near ovu...

Researchers test new way to quit smoking

...one, which is regarded as a critical make-or-break date when assessing quitting success." Findings from the research will provide useful information about more effective use of nicotine patches and gum for people who want to quit smoking, estimated to number about 430,000 people in New Zealand alone. Th...

Alternatives to the use of nitrate as a fertiliser

...s used as a fertiliser. The studies carried out to date had revealed that the use of nitrate over years favours ?in most plants ?a sensitivity or even toxicity to ammonium. However, the tolerance shown by some crop species such as the pea is of great interest due to the studies of the physiological, metab...

Molecule by molecule, new assay shows real-time gene activity

...ur experiments provide the most sensitive means to date of observing real-time activity of single molecules inside cells. This new technique could provide us with unprecedented insights into gene expression and many other fundamental biological processes in living cells." The central dogma of molecular bi...

U-M scientists identify major psoriasis susceptibility gene

...most comprehensive analysis of a psoriasis gene to date ?will be published in the May 2006 issue of the American Journal of Human Genetics. Psoriasis is a chronic disease that affects about 2 percent of the U.S. population. People with psoriasis develop thick, flaky white patches on their skin and scalp...

Multi-million pound UK Biobank underway

..., lifestyle, genes ?and chance ?but all studies to date have had limitations, which mean we still don't have a clear picture of how these different elements interact. By being so large and detailed, UK Biobank will be able to study many different risk factors together, each of which may have only modest e...

Epstein-Barr virus may be associated with multiple sclerosis

...MS were matched to each MS patient by age, sex and date of blood collection. The blood samples of all participants were then analyzed to determine the levels of antibodies against the Epstein-Barr virus. Measuring antibodies, proteins produced by the body to fight infection, is one way to determine expos...

Big hips, big belly? It's in your genes, Joslin-led study shows

...MS were matched to each MS patient by age, sex and date of blood collection. The blood samples of all participants were then analyzed to determine the levels of antibodies against the Epstein-Barr virus. Measuring antibodies, proteins produced by the body to fight infection, is one way to determine expos...

Finding a virus is not all bad news

...us strains with their geographic positions and the date that they were sampled. Together with a mathematical model of how the virus evolves this information was used to estimate the cougar's population size, the changes in the population over time, rate of evolution and rate of movement. "This new techni...

Study finds 60 new genes controlled by DNA snippet

...disease. Most known genetic diseases identified to date result from a mutation within a gene that directs protein construction, but that may soon change. "We believe more and more disease-causing mutations will be found within regulatory sequences that control genes turning on or off," Miano said. "We ...

Pesticides in the nation's streams and ground water

... the most comprehensive national-scale analysis to date of pesticide occurrence in streams and ground water. Findings show where, when, and why specific pesticides occur, and yield science-based implications for assessing and managing pesticides in our water resources." The USGS findings show strong re...

Underwater listening devices yield discoveries about endangered large whales

...e results from acoustic whale surveys conducted to date could pave the way for more sophisticated acoustic surveys that would provide data in close to real time. ...

Creating a window on 'oceans in motion'

... via satellite whenever they surface. TOPP has to date tracked thousands of individual Pacific Ocean animals spanning 21 top predator species, including whales, tuna, elephant seals, seabirds, sea turtles and sharks. "Tiny microprocessors and sophisticated remote sensing systems now make it possible for...

MIT sheds light on how tumor cells form

...f chromosomes, a condition called aneuploidy. To date it has not been clear how tumor cells become aneuploid. "Checkpoint proteins" within cells work to prevent cells from dividing with an abnormal number of chromosomes, but scientists have been puzzled by evidence that aneuploidy can result even when...

Chromosomal abnormalities in sperm higher after vasectomy reversal

...aturally or by ART ?have problems themselves?" To date there have been no studies looking at these questions, he said, and his team are beginning the follow-up research. "We are collecting sperm during vasectomy reversal operations and will compare the aneuploidy rate of these and of the sperm we will ...

Global study shows all tobacco bad for the heart

...most large studies on smoking and heart disease to date have focused on developed countries. "Smoking is the leading preventable cause of death, killing 47,000 Canadians each year through direct smoking and exposure to second-hand smoke," said Rocco Rossi, CEO, Heart and Stroke Foundation of Ontario. "...

Spinal cord bridge bypasses injury to restore mobility

...nts. This provides the most conclusive evidence to date that severed nerve fibers in the spinal cord can, in fact, regenerate for long distances and establish proper functional connections. Silver said if the method is perfected and successful with primates, it could go to human trials within a relativ...

New egg freezing technique offers hope to hundreds of women

...m to have the option of having children at a later date by freezing eggs rather than embryos. Moreover, it will help to eliminate the existing time differences in fertility between men and women, whereby women's supplies of eggs decline at a faster rate than men's supplies of sperm." Dr Chamayou, scient...

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