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Tag: "affect" at biology news

Researchers find protein that silences genes

...e packaging of DNA and its associated proteins can affect gene expression. In plants, as well as animals, some epigenetic traits are stable and can be inherited when a cell divides or even into the next generation. Pikaard explains that understanding how some genes are selectively silenced and how silence...

Scientists discover new regulating mechanism in cells

...g the drugs ineffective. Antiretroviral drugs that affect cellular targets might be less prone to resistance.) "Retroviruses seem to take advantage of RHA to enhance production of their own proteins, and cells use it to control the amount of particular proteins they make, many of which are involved in gro...

Study identifies substances in grapefruit juice that interact dangerously with some drugs

...versus furanocoumarin-free juice on the ability to affect absorption of felodipine, an anti-hypertension drug known to interact with grapefruit juice "And we found that removing the furanocoumarins from grapefruit juice entirely got rid of this interaction," Watkins said. In this randomized study, 18 healt...

Diabetes research takes wing thanks to long-lived fruit fly

...nsulin receptor together seem to work in tandem to affect life span. "We're learning that an organism's life span may not be limited by design," said Bohmann. "It was once thought that people and other organisms could simply live only a certain number of years and that's it. Instead, our genes play a cruci...

Dopamine drug leads to new neurons and recovery of function in rat model of Parkinson's

...troke (NINDS). The study suggests that drugs that affect dopamine D3 receptors might trigger new neurons to...Kampen and others also have shown that drugs which affect dopamine D3 receptors can trigger development of new neurons (a process called neurogenesis) in the ...

Birds going extinct faster due to human activities

...look at how components in the extracellular matrix affect the fate of these cells. It seems the niche doesn't just support these cells, it tells them what to become. It educates stem cells for a bright future." ...

Medium is the message for stem cells in search of identities

...look at how components in the extracellular matrix affect the fate of these cells. It seems the niche doesn't just support these cells, it tells them what to become. It educates stem cells for a bright future." ...

New study shows antibiotic may protect the heart

...ed stents can be utilized in patients to favorably affect damaged heart muscle beyond the blockage causing a heart attack," said George W. Vetrovec, M.D., chair of cardiology at VCU's School of Medicine, and co-author of the study. For the last several years, Kukreja and his colleagues have studied a class...

Lack of key enzyme associated with development of rare tumor

...rmones, Dr. Stratakis explained. For a hormone to affect the cell, it must first bind to a molecule, or receptor, on the cell's surface, analogous to how a key fits into a lock. This action triggers the cell to produce substances known as cyclic nucleotides. These function as "second messengers," often s...

All the eggs in one basket

...e changing ratio of sponge species will ultimately affect the landscape of coral reefs. The scientists say more protection is needed for the sea turtle nesting sites. "Protecting more nesting beaches is not a politically or socially simple endeavor, but it is the only way to avoid the risk of putting...

Pollen proves beneficial for northern lakes

...roduction predicted climate change scenarios could affect the productivity of northern lakes by altering the magnitude and timing of delivery of this important source of forest-derived nutrients, said Graham. ...

Major initiative proposed to address amphibian crisis

...change, pollution and toxicity that may ultimately affect many other animal species, including humans.The demise of amphibians also has ecological ripple effects ?they provide a major control of insect pests, and in turn serve as part of the food supply for birds, fish and other animals. The demise of entir...

Scientists tie several cancers to common 'oncogene engine'

... tumor, alveolar soft part sarcoma, which tends to affect female children and young adults. "It is now apparent that all of these tumors share this central family of oncogenes that are functionally interchangeable," said Fisher, who is also a professor of pediatrics at Harvard Medical School. His team demo...

How bad is malaria anemia? It may depend on your genes

...nce that an individual's unique genetic makeup can affect the prevalence and outcome of diseases, in this case the individual risk of malarial anemia. A number of human proteins, including MIF (which stands for migration inhibitory factor), were long suspected to cause malarial anemia because they are kno...

The brain, traffic and nano-circuits -- e-Science takes on major challenges

...l traveller decisions and local weather conditions affect the concentration of pollutants that individuals are exposed to as they move around. The £3.5m PMESG (Pervasive Mobile Environmental Sensor Grids) project, led by Professor John Polak at Imperial College London, is jointly funded by the EPSRC and th...

Hope I die before I get old?

...s -- such as smoking or saving money -- that might affect their health or finances later in life. They also ...about aging abound in our society, Lacey says, and affect the way older people are treated as well as the public policies that affect them. That's why resear...

Researcher studies, treats military with 'silent disease'

...hat happens to these people over time? How does it affect their quality of life? What happens when you treat them? "We just don't know what the impact of hepatitis C is. The rate of hepatitis C has been studied in the military but not the outcomes," she said. "Nobody has talked to them as a research popula...

Loosen up, DNA: Leukemia gene changes genetic packaging

...wn as HDAC (histone deacetylase) inhibitors, which affect chromatin structure and play a role in turning on or off whole swaths of DNA. Such drugs are under investigation for leukemia and several other diseases. Based on Li's work, using a drug to target the JAK/STAT pathway may offer a new strategy for alt...

Scientific issues associated with carbon-neutral energy sources such as cellulosic ethanol

...oted the concept that CO2 emissions may negatively affect climate are not new. "In 1895, Arrhenius presented a paper to the Stockholm Physical Society titled, On the Influence of Carbonic Acid in the Air upon the Temperature of the Ground in which he argued that increased concentration of atmospheric CO2,...

Gut microbes' partnership helps body extract energy from food, store it as fat

... microbial species, and the functions they perform affect each other and their hosts. Gordon's lab models ...icrobial-microbial and microbial-host interactions affect digestive health. Buck Samuel, a doctoral student in Gordon's lab, began to probe the influence of ...

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