Tag: "since" at biology news

Chemists create 'Superbowl' molecule; May lead to better health

...nd shape," says Sherburn. "'Superbowl' was perfect since it conjures up ?for me at least ?the image of a sports stadium, which the molecules are similar to in shape." Appropriately, the researcher is also a football fan and watches the Super Bowl each year on Australian television. Super Bowl XXXIX will b...

New push for public health, AIDS spending at African Union summit

...s domestic product to healthcare in the four years since the goal was stated during the founding of the pan-African body. The rest of the 52 countries included in the African Union spend less than 10 per cent of their annual revenues on health, anti-AIDS and anti-HIV efforts included. Controversial drug ...

UCSB scientists probe sea floor venting to gain understanding of early life on Earth

... the Earth's oceans, which has been occurring ever since the oceans first formed four billion years ago. Conditions below the sea floor may most closely mimic the environment when life began. "There is a great deal of interest in the microbes of the Earth's crust because the strategies by which they survi...

UAB scientists discover the origin of a mysterious physical force

Ever since the 1970s, scientists have been trying to establis...h of these are fundamental in biomedical research, since a substantial part of the process of designing new drugs is based on understanding how substances pe...

Source of molecular triggers in cutaneous T cell lymphoma identified

...r, and professor and chair of dermatology at Yale, since he and his colleagues at the National Cancer Institute first identified CTCL as a separate category of lymphoma thirty years ago. The Yale research group reported that, like all T cells, the cancerous CTCL cells require antigenic stimuli delivered b...

Genome of deadly amoeba shows surprising complexity, evidence of lateral gene transfer

...as been at the forefront of the genomic revolution since the institute was founded in 1992. The Institute's scientists conduct research involving the structural, functional, and comparative analysis of genomes and gene products in viruses, bacteria, archaea, and eukaryotes. ...

Newly-discovered class of genes determines ?and restricts ?stem cell fate

...stein notes that this research is conceptually new since he suggests that a single gene can both tell a cell what it should become and restrict its fate by preventing differentiation. The ability of a single biochemical factor or complex of factors to have this dual role may represent a new general paradig...

Recent breakthroughs in common adult leukemia highlighted in New England Journal of Medicine

...and incompetent white blood cells. Scientists have since discovered that CLL cells do indeed turn over, wit...rates of the leukemia cells. Scientists have also since discovered that CLL is not a uniform disease but rather a disease that follows two distinct clinical...

Newly discovered virus linked to childhood lung disorders and Kawasaki disease

...an respiratory coronavirus wouldnot be surprising, since studies in the 1960s and 1970s had pointed toa number of novel coronavirus strains but the findings were notadequately followed up because methods to do so were unavailable at thetime. The statistically strong association with Kawasaki disease,howeve...

Study Links Ebola Outbreaks To Animal Carcasses

...to predict and prevent outbreaks. On two occasions since then, the network alerted health authorities about potential human outbreaks weeks before they occurred. "The signs of potential outbreaks often occur in remote areas, where roads are barely usable and communications limited," added Karesh. "Conserv...

Bacteria collection sheds light on urinary tract infections

... Disease Center has been collecting E.coli samples since 1965 and is the largest repository of E.coli in North America. The center has 60,000 E.coli strains isolated from cows, birds, pigs, humans, dogs, water and the environment. The center is located in the Department of Veterinary Science, Penn State’s ...

Bound for destruction: Ubiquitination protects against improper Notch signaling

...known, or at least hinted at, for nearly a century since theidentification of a mutant strain of Drosophila fruit flies with“notched?wings in Thomas Hunt Morgan’s lab in 1910. Later studiesrevealed that the Notch gene encodes a receptor protein that extendsthrough both sides of the cell membrane and which ...

Genome-wide mouse study yields link to human leukemia

...ngs offer important implications for patient care, since we know that methylation, which alters gene function, can be reversed," says Christoph Plass, senior co-author and a member of the OSUCCC's Molecular Biology and Cancer Genetics and Experimental Therapeutics Programs. While it was Caligiuri's labora...

Learning to fight an adversary that won't stay down

...ic resistance in particular, has fascinated Davies since he began postdoctoral work on antibiotics and resistance mechanisms at Harvard Medical School in the early 1960s. "The microbes are evolving genetically, and the pharmaceutical companies are evolving chemically; the two don't match," says Dr. Davies...

Novel Enzyme Shows Potential As An Anti-HIV Target

... replication depends on adequate Tat supplies. And since HIV gene expression relies on SIRT1’s enzymatic activity, inhibiting SIRT1 could prove to be a promising anti-HIV therapy. Future study will have to verify whether inhibiting SIRT1 can successfully put the brakes on HIV transcription and control the ...

NYU Study Reveals How Brain's Immune System Fights Viral Encephalitis

...leased and infect other neurons. This is critical, since the immune system does not kill infected precious neurons the way it does other cells, which can be replaced. The researchers attributed the spread of viral encephalitis to the inability of lab mice to produce sufficient amounts of interferons to fi...

Study finds more than one-third of human genome regulated by RNA

...lation of a third of these genes hasbeen preserved since the last common ancestor of mammals and chicken,which lived 310 million years ago. "This study is an excellent exampleof the power of comparative genomics to illuminate how human genes areregulated," says Burge."As more genome data becomes available ...

NYU researchers simulate molecular biological clock

...lation of a third of these genes hasbeen preserved since the last common ancestor of mammals and chicken,which lived 310 million years ago. "This study is an excellent exampleof the power of comparative genomics to illuminate how human genes areregulated," says Burge."As more genome data becomes available ...

Antibiotic Resistant Bacterium Uses Sonar-like Strategy to “See?Enemies or Prey

... Billion to health care costs.Scientist have known since 1934 that especially harmful strains ofEnterococcus produce a toxin that destroys other cells, including humancells and even other types of bacteria. They also knew that this toxinwas made only under some conditions. Until Gilmore’s study, scientists...

Molecular machine may lead to new drugs to combat human diseases

... cutting and pasting apparently has been conserved since life evolved. "It's thought that RNA, or a molecule related to RNA, possibly were the first biomolecules, because they are capable of both performing work and carrying around their own genetic code," Golden said. She and her research team used an i...

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