Tag: "six" at biology news
Agent slows aging in mice
...es of this sort in the right way,” he says. In six
to 10 months, once all the mice in the control group have died, the scientists will get answers to the really burning question: Will the mice fed NDGA, already well past middle age, live past the normal outer limit of old age" The longest that mice o...
Brain inflammation may be friend, not foe, for Alzheimer's patients
...imer’s disease. The mice developed normally for six
months. Then Shaftel raised the level of IL-1beta in one part of the brain –the hippocampus, an area of the brain that specializes in memory and one of the first parts of the brain to be affected by the disease – and followed the mice for an addition...
Researchers find 24 species believed new to science in Suriname rainforest
...ple markings, four Eleutherodactylus frog species, six
species of fish, 12 dung beetles and an ant species. The scientists also found 27 species endemic to the Guayana Shield region comprising Suriname and neighboring Guyana, French Guiana and northern Brazil, including a rare armored catfish, Harttiella...
Cigarette smoke alters DNA in sperm, genetic damage could pass to offspring
...hat had been exposed to cigarette smoke for either six
or 12 weeks to look for alterations in a specific ... 1.4 times higher than that of non-smoking mice at six
weeks, and 1.7 times that of non-smoking mice at 12 weeks. “This suggests that damage is related to ...
New collaborative research reveals chimpanzees can sustain multiple-tradition cultures
...anzees and humans shared a common ancestor five to six
million years ago who had a similar level of cultural complexity. For years, primatologists have suggested different communities of chimpanzees across Africa vary in many behavior patterns, indicating they have cultures specific to each community....
Marine phytoplankton changes form to protect itself from different predators
...refer to eat small solitary cells that are four to six
microns in diameter, and the larger shrimp-like co...ransformations took place over periods of three to six
days, and the overall size difference could be dramatic. “When one of these cells changes to the bi...
Clot-dissolving agent may be beneficial in treatment of severe frostbite
...lood flow to the affected limb. From 2001 to 2006, six
patients with abnormal blood flow on angiography r... tPA more than 24 hours after injury. Among the six
patients who received tPA within 24 hours of injury, six
of 59 (10 percent) affected fingers or toes...
Reconstructing the biology of extinct species: A new approach
...nimals in the wild to classify species into one of six
locomotor categories ranging from very slow and deliberate to fast and agile. The scientists then compared the canal size of each species to its category of movement. The results revealed a highly significant statistical relationship between the...
Focused ultrasound relieves fibroid symptoms in women
...aximum fibroid treatment volume of 100ccs (roughly six
centimeters (cm) in diameter), or up to 33 percent of total fibroid volume. Protocol B allowed a maximum treatment time of 180 minutes and maximum fibroid treatment volume of 150ccs (about seven cm in diameter), or up to 33 percent of total volume in...
Human stem cell treatment restores motor function in paralyzed rats
... spine returned to near normal ambulatory function six
weeks after receiving grafts of human spinal stem ...ne rats injected with hSSCs returned to walking at six
weeks, and three others had improved mobility in all lower extremity joints. All nine animals grafte...
Resistant HIV quickly hides in infants' cells
...ed States, analyzed HIV-infected infants less than six
months of age enrolled in a large, multi-center clinical trial covering 10 states. Their results showed that five of 21 HIV-positive infants were infected with drug-resistant HIV transmitted from their mothers—a surprisingly high figure. Of those...
Nitric oxide: Key to cardiovascular and pulmonary function and drug effectiveness
...e one another," said Erin Whalen, Ph.D., who spent six
years focusing on the link between the two biological systems. Whalen is a postdoctoral fellow in the laboratory of Robert Lefkowitz, M.D., a Howard Hughes Medical Institute investigator at Duke who first cloned these receptors in 1986. The link was ...
Simple home spit test to spot deadly pre-eclampsia
...ternal mortality, killing one woman globally every six
seconds, according to the UK's Action on Pre-eclampsia (APEC). Earlier detection and intervention could save lives. Standard blood pressure and urine tests are unreliable, and there is a lot of scope for "user error", according to Michael Rich, ch...
Scientists: As rainfall changes, tropical plants may acclimate
...fall. The scientists researched plant growth at six
sites on the slopes of Mount Haleakala, a volcano on the island of Maui. The sites were ideal because they share the same species, elevations and soils but have vastly different rainfall. The wettest rainforest sites receive an astonishing 196 inches...
Study shows continued success for new HPV vaccine against virus responsible for cervical cancer
...men in the US are infected with HPV, and more than six
million new infections are reported each year, mak...begin their vaccination series of three shots over six
months and to continue seeing their doctor for regular checkups and screenings. ...
Confirmed -- deforestation plays critical climate change role
...ption would avoid the release of the equivalent of six
years of global fossil fuel emissions." Reducing deforestation is just one of a portfolio of mitigation options needed to reduce concentrations of greenhouse gases in the atmosphere. "Globally, we need a range of actions to reduce the build up...
Parasites' impact goes beyond host to affect ecosystem
...nt in the cage of infected snails; it decreased by six
percent in the uninfected snails treatment. "Whatever controls that edible algae controls a lot," says Byers, noting that other snails, isopods, and possibly near-shore fish feed on ephemeral algae. "It’s suggestive that these non-lethal impacts ...
DNA analysis suggests under-reported kills of threatened whales
...ce the average market 'half-life' of whale meat is six
weeks, at most, we should have found far fewer ind...t with each succeeding week, and their estimate of six
weeks for the "half-life" of an individual whale gives future researchers a good idea of how frequen...
NIAID expands capability for influenza research and surveillance
... $23 million per year for seven years to establish six
Centers of Excellence for Influenza Research and S...e surveillance and research program to now include six
Centers of Excellence for Influenza Research and Surveillance. Their work will include determining t...
Genetic fingerprints identify brain tumors' origins
...s is unexplained. In the new study, Gutmann led six
laboratories in the most detailed genetic analysis of PAs to date. "We were hoping to identify genes that contribute to the formation of these tumors and find indicators that might help us predict which tumors will be relatively well-behaved and w...
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