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Tag: "previous" at biology news

Intravenous gene therapy protects normal tissue of mice during whole-body radiation

..., University of Pittsburgh School of Medicine. "In previous studies, we demonstrated that gene therapy can be both swallowed in pill form and inhaled through a nebulizer prior to radiation exposure to protect healthy tissues from damage. In this study, we found that the same therapy administered intravenously...

Ghengis Khan wonder berry could conquer heart disease

...at this technology had great potential, saying "No previous report has shown efficiency matching ours". Arumughan's team have unlocked the nutrients by applying novel processing technique for the first time. The key to their success is using continuous high speed centrifugation (spinning) to separate the juic...

Heavy smoking cuts women's chance of pregnancy -- even with donated oocytes

...he heavy smokers. "This means we have confirmed previous data that show light smoking has no significant impact on IVF cycles, either through affecting the ooctye or the uterus. But, heavy smokers have a much lower chance of achieving pregnancy. The fact that we see this result in a situation in which the ...

Proteins necessary for brain development found to be critical for long-term memory

...-- which normally would remember the events of the previous day -- exhibited no memory of the shocks. Carew and colleagues went on to show that, when the actions of the growth factors were prevented, long-term enhancement of the connections between the brain cells in the reflex circuit normally induced by th...

Learning during sleep?

...sleep. According to their findings and contrary to previous assumptions, the cerebral cortex actively controls this transfer. The researchers developed a new technique for their investigations which promises previously impossible insight into the largely under-researched field of information processing in the...

A buffet for early human relatives

...io of rare carbon-13 to common carbon-12. "The previous way to sample tooth enamel was to take a dental dr...ike human-sized teeth," he says. "If you tried the previous method on a human tooth, you would blast a hole clear through the enamel, and museum curators wouldn...

Gene signature assesses breast cancer outcomes

... the Journal of the National Cancer Institute. In previous research, scientists at the Netherlands Cancer Institute in Amsterdam identified 231 genes associated with patient outcomes in a group of patients 55 years or younger with breast tumors under 5 cm. The 231 genes were reduced to a core group of 70 tha...

Selecting life: Scientists find new way to search for origin of life

...adhere to left-faced calcite. That study confirmed previous theoretical suggestions of a plausible process by which the mixed right- and left-handed -amino acids in the primordial soup could be concentrated and selected on a readily available mineral surface. The challenge since has been to determine which of...

Firefighters face increased risk for certain cancers

...n non-firefighters. The researchers also confirmed previous findings that firefighters are at greater risk for multiple myeloma. Grace LeMasters, PhD, Ash Genaidy, PhD, and James Lockey, MD, report these findings in the November edition of the Journal of Occupational and Environmental Medicine. The UC-led ...

Need to pull an all-nighter?

...ity of Helsinki (Helsinki, Finland), ties together previous observations about sleep and finds that nitric oxide production in a specific region of the brain ?the basal forebrain ?is both necessary and sufficient to produce sleep. The findings appear in two related papers in the August 18 issue of the Journal...

First major study of mammalian 'disorderly' proteins

...partment of Structural Biology. Moreover, he said, previous work by other researchers suggested that a large proportion of IUPs in mammalian cells play key roles in transmitting signals and coordinating biochemical and genetic activities that keep the cell alive and functioning. Kriwacki is senior author of a...

One signal elicits thousands of answers

...study revealed more phosphorylation sites than all previous studies combined," says Mann. ...

What does the public really know about HPV?

...esented with new health care research that updates previous knowledge, might conflict with prior knowledge, or provides entirely new options for diagnosis and treatment," said Jasmin A. Tiro, Ph.D., MPH, in the Division of Cancer Control and Population Sciences, NCI, Bethesda, Md. "With limited awareness abo...

Stroke symptoms common among general population

...ing to background information in the article. One previous study found that 11 percent of individuals age 55 ...iduals visited a physician for their symptoms, but previous studies have shown that many people do not seek medical care for stroke symptoms and if they do, the...

Transmission of antibiotic-resistant bacteria linked to previous intensive care unit room occupants

...iers." Though the number of cases attributed to previous room occupants was small, this type of transmission could become more common as the prevalence of treatment-resistant bacteria continues to rise. "Additional data are needed to determine whether more intensive cleaning practices can reduce the risk ...

Two studies on bee evolution reveal surprises

... first appeared about 120 million years ago -- but previous bee fossil records dated back only about 65 million years. Danforth and Poinar's fossil provides strong evidence for a more remote ancestry. The fact that the bee fossil also has some wasp traits suggests an evolutionary link between wasps and bees. ...

Siberian lakes burp 'time-bomb' greenhouse gas

... been accurately quantified. "We realized that our previous estimates were missing a very large and important component of lake emissions - in these bubbles were the dominant source of methane from lakes," said Walter, an International Polar Year post-doctoral fellow at the Institute of Arctic Biology at the ...

Artificial cornea offers better results for infants, some blind patients

...conditions like glaucoma, congenital anomalies, or previous cornea surgeries. In Las Vegas, Rochester docto..., which in adults are primarily for patients whose previous transplants using traditional tissue have failed, oftentimes because of rejection by the immune syst...

Sex and the heart: It's not what you think

...e Journal of Women's Health, reflect a change from previous decades when older men were at greater risk for heart disease. Instead this research shows over the last 10 years, older women are doing worse, while men are doing better. Women's risk for heart disease is still lower than men's through middle age. ...

Bad blood between boys and girls

... anti-Toxoplasma antibodies in the mother's blood, previous deliveries and abortions, and the sex of the newborn. On average worldwide, for every three children born, only one is a boy. Kankova's team found that Toxoplasma positive mothers gave birth to more boys than did Toxoplasma negative women. The...

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