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Tag: "that" at biology news

Iron Deficiency Sparks Dramatic Changes In Gene Expression

...ther foods.Their study in yeast cells demonstrated that iron-starved cellspreserve the little iron they po...edman Nutrition and Metabolism Center demonstrated that theactivity of more than 80 different genes was dramatically reduced inresponse to iron deprivation....

Learning to fight an adversary that won't stay down

...li and Staphylococcus aureus (MRSA), the bacterium that causes methicillin-resistant tuberculosis, provide...tals and the environment. "What has been found is that there are more antibiotic resistance genes around than we ever realized," says Dr. Davies. "There ar...

Scientists find missing enzyme for tuberculosis iron scavenging pathway

Scientists have discovered that a protein that was originally believed to be involved in tuberculosis antibiotic resistance is actually a "missing ...

Improved Outcomes Releases GeneLinker(TM) Gold and Platinum Version 4.6

...imported, enabling novel visualization of channels that bestdistinguish between different classes (see Pro...he main features in both Platinum 4.6 and Gold 4.6 that differentiatethem from the previous versions are:- Addition of Improved Outcomes' Protein Biomarker ...

Novel Enzyme Shows Potential As An Anti-HIV Target

...udy, Melanie Ott and colleagues identify an enzyme that regulates viral transcription by modifying Tat. T...NA, specifically to a bulging “stem-loop?structure that forms at one end of all viral transcripts called the trans-acting responsive element (TAR). Tat bind...

Scientists seek answers on what activates deadly anthrax spores

... spores in anthrax, the deadly bacterial infection that is back in the news. "A key aspect of anthrax spo...ed, "Basic understanding of the regulatory signals that promote germination will enable discoveries leading to drugs that block the process." The research ...

Found: Missing sequence of the human Y chromosome

...entists report today in the journal GenomeResearch that they have successfully cloned and characterized ap...his sequencecontains eight putatively active genes that could be implicated insex-associated height differences and gonadal tumor development. Thispericent...

U of M researcher examines newly emerging deadly disease

... the lungs, making superantigens (bacterial toxins that activate large numbers of T cells), often leading ...ge and sloughing of skin. Purpura are skin lesions that may be many centimeters in diameter caused by the leakage of blood into the skin. "It is important ...

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

... cover study in the latest issue of Virology, show that proteins in neurons fight the virus at multiple st... how type I interferons--proteins made by the body that are released in response to stimuli, notably infection--work in neurons and to determine if nerve ce...

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

...dies, with RNA seenas little more than a messenger that shuttles information between thetwo. But researche...sachusetts Institute of Technology have discovered that smallRNA molecules called microRNAs regulate thousands of human genes--morethan one third of the gen...

Live Recombinant Adenovirus Vaccine Technique Explored

... adenovirus could lead to more economical vaccines that provide longer-lasting disease protection, which w...y developed oral vaccines for adenovirus years ago that safely provide immunity in one dose. We wanted to see if we could combine the safe and easy-to-use q...

Emory Eye Center Implants Its First Retinal Chips In Patients With Retinitis Pigmentosa

...r. Retinitis pigmentosa is a pathologic condition that is hereditary and causes progressive retinal degen...yes. It is a general term for a number of diseases that predominantly affect the photoreceptor layer or "light sensing" cells of the retina. Night blindness...

The secret lives of whales

...ther their ancient family trees, he has discovered that the Antarctic population of minke whales is now th...tional Whaling Commission (IWC) because some argue that the recent surge in minke populations is unprecedented and is hampering the recovery of other whales...

NYU researchers simulate molecular biological clock

...dies, with RNA seenas little more than a messenger that shuttles information between thetwo. But researche...sachusetts Institute of Technology have discovered that smallRNA molecules called microRNAs regulate thousands of human genes--morethan one third of the gen...

Dinosaur DNA? New Patent Covers Degraded DNA recovery

... cat or even from tissues of the Tyrannosaurus rex that was described last Friday in the journal Science,"...owed by the US Patent Office" Dr. Ensley believes that one of the first applications could be in forensic science, where time, the traumatic circumstances ...

Leukemia Drug Breakthrough Study In New England Journal Of Medicine

...ultaneously blocks the growth of new blood vessels that nourish tumors (anti-angiogenesis) and stimulates ...dent also went into cytogenetic remission, meaning that the chromosome abnormality disappeared. List, a professor of interdisciplinary oncology at the Univ...

Mitochondrial DNA mutations play significant role in prostate cancer

...ancer cells with the mutant mtDNAsgenerated tumors that were on average seven times larger than theprostat... radicals thanthose with normal ntDNAs, suggesting that this may be an importantcontributory factor in the mitochondrial enhancement of prostate cancertumor...

Gene therapy converts dead bone graft to new, living tissue

...f the most common types of bone cancers, or tumors that occur adjacent to bones, often must be treated by ...looked into the activity of the genes and proteins that govern its health. His team replaced sections of bones in dozens of mice, using both healthy and dea...

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

...ains howsome bacteria know when to produce a toxin that makes infection moresevere. It may lead to the des... health care costs.Scientist have known since 1934 that especially harmful strains ofEnterococcus produce a toxin that destroys other cells, including human...

Researchers reveal the infectious impact of salmon farms on wild salmon

...ion of the UK's national academy of science) shows that the transfer of parasitic sea lice from salmon far...ld salmon. The study combined new field techniques that allowed comprehensive, individual observations of over 5,500 young wild pink and chum salmon over 60...

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