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Tag: "amounts" at biology news

Pollution threatens coral health by preventing lesions from healing, UCF study shows

...s of sewage levels. Higher values equate to larger amounts of sewage in an area. Risk and LaPointe found higher levels of the tracers than in any other area of Florida that they have studied, which Risk described as a "real cause for concern." Nitrogen pollution can be caused by the discharge of treated wa...

Cornell researchers find serious fish virus in Northeast for first time

...in reaction), which would amplify and detect small amounts of viral DNA or RNA in a blood or tissue sample. Although no management decisions have yet been made, the DEC could recommend that boaters clean their boats before traveling from one body of water to another and not dump bait minnows into open wat...

Scientists discover why cornea is transparent and free of blood vessels, allowing vision

...e researchers, is the unexpected presence of large amounts of the protein VEGFR-3 (vascular endothelial growt... corneas when they noticed unexpectedly that large amounts of the protein seemed to exist naturally on healthy corneal epithelium, a previously unknown locatio...

T cells activated to fight HIV basis for dendritic cell therapeutic vaccine

...ed cell death. In their dying state and with trace amounts of viral antigen still present, these CD4 cells were placed in culture with the beefed up dendritic cells. Recognizing the cells as foreign, the dendritic cells processed the antigen. Importantly, the dendritic cells presenting the HIV fragments were...

Blood test predicts success of quitting smoking using the nicotine patch

...lism of nicotine, which was associated with higher amounts of craving and greater difficulty in quitting cigarettes using the nicotine patch. The smokers who participated in the study quit smoking and started using either the patch or the nicotine nasal spray for eight weeks. Measurements of carbon monoxide...

Gene screen for breast cancer better than pathologist's 'eye'

...opes. Sukumar's test searches for unusually high amounts of chemical tags embedded by a process called methylation within critical regions of DNA. The tags attach to the "on" switch of genes which starts the message-manufacturing process. Cancer cells have abnormal levels of methylation, which turns the ...

Arctic coring expedition continues to yield new clues

... wet, and ice-free up to the time the last massive amounts of greenhouse gases were released into the Earth's atmosphere ?a period calculated to have occurred 55 million years ago, and known as the Paleocene/Eocene thermal maximum, or PETM. Researchers have long recognized that a massive release o...

Exxon Valdez oil found in tidal feeding grounds of ducks, sea otters

... study, Short and his colleagues found significant amounts of Exxon Valdez oil buried in sand and silt that only becomes dry during the lowest tides. This biologically diverse zone is a prime feeding ground for sea otters, ducks and other wildlife. Previously, scientists believed most of the oil was deposi...

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

...anks to B. thetaioatomicron, it received increased amounts of formate, a product of polysaccharide fermentation that it covets and uses. "The presence M. smithii improved the overall efficiency of the digestive system," Gordon says. "It remains to be established whether we can intentionally manipulate this ...

Science captures the essence of fruit

...wcomb. Biofermentation however can produce large amounts of a desired compound at a low cost and with little environmental impact. And because biofermentation uses the actual genes that plants use in the wild, the resulting flavour or fragrance compound has exactly the same molecular make-up. It is, as the...

Loosen up, DNA: Leukemia gene changes genetic packaging

...fruit flies. Researchers created flies with normal amounts of the signaling system and compared them to mutan...e, the gene was turned off. In flies with normal amounts of JAK/STAT, the eye color was predictable based on where the gene was inserted ?the gene was silent...

University of Minnesota researchers take new look at cellular suicide

...iscovered that after they expose cells to damaging amounts of ultraviolet light, a form of JNK initiates both of the cellular processes that culminate in DNA destruction. In one process, JNK starts a chain reaction that leads to the activation of an enzyme that chops up DNA. In the other process, JNK activa...

Triple threat polymer captures and releases

...decreasing temperature as they went with different amounts of poly(ethylene glycol) relative to hyperbranched fluoropolymer in the composite material. "What's amazing is that there is a 55 degree temperature reduction at which this small molecule leaves the host material versus it leaving an empty pan,, s...

Lack of key enzyme associated with development of rare tumor

...ents who took part in the study was found in large amounts in normal adrenal glands and in even larger amounts in normal prostate glands, Dr. Stratakis added. Other forms of PDE11A are found in several other ti...

Record air pollution above the Arctic

...on has caused the record high air pollution. Large amounts of aerosols from eastern Europe were driven into the arctic atmosphere. Increased aerosol concentrations had already been measured at springtime of recent years. However, this „Arctic Haze" has never been as pronounced before. Aerosols constitute sm...

Bone marrow may restore cells lost in vision diseases

...evidence that the body naturally replenishes small amounts of cells in the eye essential for healthy vision. The finding may shatter the belief that a cell layer vital for eyesight called the retinal pigment epithelium, or RPE, is a nonrenewable resource, say researchers writing in a recent issue of Investi...

Healing the heart with bone marrow cells

...inject cells genetically modified to release large amounts of stem cell factor into the region of the heart injured by the heart attack. These cells increased the 'SOS' signals from the heart and enhanced the intrinsic regeneration of the heart and restored function nearly to normal. These results were recen...

A surprise about our body clock

...inject cells genetically modified to release large amounts of stem cell factor into the region of the heart injured by the heart attack. These cells increased the 'SOS' signals from the heart and enhanced the intrinsic regeneration of the heart and restored function nearly to normal. These results were recen...

Vaccine shown effective against chancroid

... needed, including perfecting ways to purify large amounts of the hemoglobin receptor substance and testing it with an adjuvant approved for human use. ...

Coffee makes us more likely to say 'yes'

...make someone say 'yes', coffee can help. Moderate amounts of caffeine can have an impact on the extent to which we can be persuaded, finds research published today in the European Journal of Social Psychology. The Australian researchers from the University of Queensland found that with caffeine consumption...

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