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Tag: "suggests" at biology news

Youth With HIV Take More Risks After New Meds Introduced

...act of HAART," Lightfoot says. The new study also suggests the lives of some HIV-positive teens have not impr...others, says Lightfoot. "Simultaneously, evidence suggests that many people living with HIV believe that sexual behaviors that could lead to the transmission o...

Biologists discover why 10% of Europeans are safe from HIV

... the CCR5-delta32 mutation is restricted to Europe suggests that the plagues of the Middle Ages played a big part in raising the frequency of the mutation. These plagues were also confined to Europe, persisted for more than 300 years and had a 100% case mortality." Around 1900, historians spread the idea tha...

First North American Encapsulated Islet Transplant without Long-term Immune Suppression into a Patient with Type 1 Diabetes

... the CCR5-delta32 mutation is restricted to Europe suggests that the plagues of the Middle Ages played a big part in raising the frequency of the mutation. These plagues were also confined to Europe, persisted for more than 300 years and had a 100% case mortality." Around 1900, historians spread the idea tha...

Different microarray systems more alike than previously thought

...f genes at once to create a genetic "fingerprint," suggests these different microarray technologies are more alike than once thought. Published in the May 2005 issue of Nature Methods, the study provides new hope that the mounds of information generated by these systems might actually be comparable, even tho...

Aggressive aquatic species invading Great Lakes

...March issue of the Journal of Great Lakes Research suggests that for the round goby, a recently introduced fish species, their ability to wrest territory from native fish plays a key role in their dominance of the Great Lakes. In the study, McMaster's Sigal Balshine, an assistant professor of psychology, and...

Cooperation is key—a new way of looking at MicroRNA and how it controls gene expression

...ple RNA binding proteins as well as microRNA. This suggests that the RNA binding proteins are there to facilitate the degradation and that microRNA is required as well. They believe that the microRNA and protein form a large complex of molecules, though they do not know exactly how many proteins and other mol...

Chromosome Deletion Predicts Aggressive Neuroblastoma

...of the childhood cancer neuroblastoma. A new study suggests that detecting this genetic deletion during the initial evaluation of children with neuroblastoma may indicate to physicians that they should recommend a more aggressive regimen of chemotherapy to fight the cancer. Edward F. Attiyeh, M.D., a pediatr...

The evolutionary triumph of flower power

...lors we see in domesticated flowers today. McGuire suggests that nature's prettier flowers got to survive and thrive because people didn't destroy them when they cleared land for agriculture. Instead, they cultivated them and have been doing so for more than 5,000 years. Ironically, many domesticated flowers...

MUHC scientists describe genetic resistance to rampant virus

...isease resistance," notes Dr. Vidal. "Our research suggests there are many different mechanisms for fighting viruses; in the future we expect to discover additional resistant genotypes." CMV infects most of the world's organisms, including upwards of 80% of the human population. Although healthy people suffe...

New World founders small in number

...ach founder population through time. His analysis suggests that only about 70 individuals left their ancestral Asian population (estimated at about 9,000 individuals) to reach America 7,000 to 14,000 years ago. Archaeological evidence places the earliest American inhabitants in the New World at around 14,000...

Study uncovers bacteria's worst enemy

...es are less toxic than other types of metals. This suggests that actinide toxicity will not impede bioremediation using naturally occurring bacteria. "This study" said Neu, "is exciting because even though we've known for years that bacterial bioremediation can be a preferred method for cleaning up actinide ...

Low oxygen likely made Great Dying worse, greatly delayed recovery

...esearch by two University of Washington scientists suggests that a sharp decline in atmospheric oxygen levels was likely a major reason for both the elevated extinction rates and the very slow recovery. Earth's land at the time was still massed in a supercontinent called Pangea, and most of the land above se...

Scientists reveal the shape of a protein that helps retroviruses break into cells

...esearch by two University of Washington scientists suggests that a sharp decline in atmospheric oxygen levels was likely a major reason for both the elevated extinction rates and the very slow recovery. Earth's land at the time was still massed in a supercontinent called Pangea, and most of the land above se...

Science study holds implications for gene therapy and stem cell biology

...er of patients. The new study published in Science suggests that enhanced fitness of stem cells could be a welcome side effect of current gene-based therapies, but also a potential risk factor for leukemia later in life. "We still need to learn how many risks we can tolerate in gene therapy, just as in other ...

Currents could disrupt ocean food chain

... just idle speculation. A growing body of evidence suggests that it switched on and off 20 to 25 times during the last ice age. "During the last ice age, from about 100,000 years before present to 20,000 years B.P., thick ice sheets over Canada sporadically dropped armadas of icebergs into the North Atlantic...

Bobbing birds do it for a reason

...ranes favor visual fixation. This result strongly suggests that visual fixation not only removes motion blur but also plays a critical role in permitting the detection, localization, and recognition of objects. Head-bobbing behavior, so characteristic of birds, permits the close and stable examination of obj...

Retrovirus struck ancestors of chimpanzees and gorillas millions of years ago, but did not affect ancestral humans

...netic information into the host's genome. Evidence suggests that the 'retroelement' originated from an external retrovirus that actively infected ape species in the past. "The reason retroviruses are so deadly, at the genetic level, is that they have a tremendous potential to mess up a gene and interfere wit...

Molecular thermometers on skin cells detect heat and camphor

...eems to be 'yes.'" This is significant because it suggests that TRPV3 is a potential drug target. TRPV3 is on...t- and camphor-mediated activity disappears, which suggests that it is the TRPV3 proteins on the keratinocytes that are actually detecting warm temperatures. It...

Precise Timing Enabled Pig-to-rat Transplants To Cure Diabetes

... secondary kidney transplants. To Hammerman, this suggests that the pancreatic primordia may be effectively invisible to the rat's immune system. He theorizes that this invisibility is a result of the unusual ways 28-day-old tissues differentiate after transplantation. He and Rogers have shown that no part o...

Penn Researchers Use Robotic Surgery

...its for patients. "The research we've done to date suggests that TORS has great potential to improve the way we treat head and neck cancer patients," said Bert O'Malley, Jr., MD, Chair of PENN's Department of Otorhinolaryngology/Head and Neck Surgery. "We believe this technology will have a dramatic impact on...

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