secondary 2 1

Tag: "secondary" at biology news

Microbes at work cleaning up the environment

...on’t move as easily and are less soluble. Using secondary ion mass spectrometry, transmission electron micro...an Hutcheon used LLNL’s NanoSIMS (high- resolution secondary ion mass spectrometer) to study the metal-sulfide nanoparticle aggregation in sulfate-reducing bacte...

In nature, proteins sweep up nanoparticles

...remely high-spatial-resolution imaging tool called secondary ion probe spectrometry, which is located at the Department of Energy’s Lawrence Livermore National Laboratory. Also called NanoSIMS, the tool determines the quantitative elemental and isotopic composition of a sample’s surface. To their surprise, ...

'Virtual autopsy' helps identify drowning as cause of death

...ation because becoming submerged in water may be a secondary rather than primary event. Autopsy findings that support the diagnosis of drowning include but are not limited to frothy fluid in the airways or lungs, hyperinflated and congested lungs, and fluid in the paranasal sinuses or stomach. There are so...

Herpes infection may be symbiotic, help beat back some bacteria

...onal pathogens that find it harder to come in as a secondary infection after herpes becomes latent" Do other latent infections convey similar protective effects" These are not the kinds of questions we're accustomed to asking about such infections, but our findings suggest that we need to start." Virgin not...

The quest for an effective HIV vaccine presents new possibilities, challenges

...cted" Additionally, T-cell vaccines may reduce secondary HIV transmission if they can help the immune system keep viral replication at a very low level for a long time. Studies have suggested that people with high levels of virus--namely those in the early and late stages of infection--are most likely to i...

Scientists seek useful traits in wild cottons

...ther tests." Sheehan raises Lygus bugs, a secondary pest of cotton, and confines their feeding to certain parts of cotton plants using bug cages. The amount of damage they inflict on cotton fruit and their ability to lay eggs for another generation are good indicators of Lygus resistance, said Sheehan...

Fat overrides effects of vitamin C

...pecies able to convert a range of targets, such as secondary amines and bile acids, into carcinogenic N-nitrosocompounds. Antioxidants such as ascorbic acid protect against the formation of these nitrosocompounds by converting the nitrosating species back into nitric oxide (NO). However, NO diffuses rapidly to...

Cancer-killing invention also harvests stem cells

...ote organ, then leaves the bloodstream and forms a secondary tumor. This is how cancer spreads. He put these facts together with one more, very important fact: the selectins grab onto a specific carbohydrate on the surfaces of white blood cells, stem cells, and cancer cells. Associate Professor King decide...

Antifungal drug kills TB bug

...lungs, waiting for any sign of weakness, such as a secondary infection. Its resurgence over the last 20 years has been closely associated with the AIDS epidemic, which destroys the human immune system and has allowed TB to get a grip once again." London is the TB capital of Europe, although most large citie...

Penn study on olfactory nerve cells shows why we smell better when we sniff

...ergy into electrical signals, which then trigger a secondary molecular messenger cascade that generates electrical impulses to the brain, signaling that it is smelling something. The group discovered that chemical and mechanical stimuli both resulted in the same messenger molecule, cAMP, which acts like a gat...

Scientists discover how body fights to control spread of cancer

...around cancer cells and prevents them from causing secondary tumours, is attacked by a small protein that exist...om attaching to the blood vessel wall which causes secondary tumours. We have discovered that a small protein called galectin-3, attacks MUC1 and breaks up its ...

Bioluminescence at the service of a novel cerebral imaging technique

... and olfactory memory in the Drosophila) induces a secondary response which is delayed by about 10 to 15 minutes at the level of neuronal axonal projections. It is therefore probable that this new response (hitherto totally unsuspected) intervenes in learning and memory phenomena. Furthermore, using this...

New antibacterials being developed to tackle MRSA superbug

...e patient's natural bacteria, leaving them open to secondary infection by other pathogenic bacteria, for example Clostridium difficile." Given the urgent need for new antibacterials to tackle staphylococcal infections, Dr Czaplewski believes that the research, supported by this £3.48 million, 33 month award,...

Parasite infection may benefit MS patients

... exhibit an altered immune response that affects a secondary antigen, as was the case in the current study. "Thus, parasites may lead to increased regulatory T cell numbers or activity, either by generating new cells or by activating/expanding existing cells," they state. Because parasites inhabit their host...

Viral protein is an effective preventative against infection

... may prevent children with the flu from developing secondary ear infections and would be an attractive alternat...portunity and migrate to the middle ear, causing a secondary infection. The new treatment would kill the bacteria before it had a chance to move. "These bacte...

Organic is healthier: Kiwis prove that green is good

...alth. “The authors also did not look for any plant secondary metabolites of potential toxicological impact.? According to the Soil Association, organic food sales in the UK increased by 30% to £1.6bn in 2006. The world market for certified organic foods was estimated to be worth US $23-25 billion in 2003 and...

Linheng Li Lab documents the development of cancer stem cells

...hat they may cause tumors when transplanted into a secondary host. Until now, however, little was known about the process by which mutations in a stem cell result in primary tumor initiation. The Li Lab team studied the intestinal system in mice in which one of the human tumor suppressor genes, PTEN, had ...

Army research mission focused on autism

... 10 percent of individuals with ASD develop autism secondary to a known genetic disorder. The cause of ASD is not certain; however, parents of ASD children have been playing a significant role in changing the way experts view the disorder. "Children are like snowflakes, each one different, each one needing ...

Salmon farms kill wild fish, study shows

... sea lice on fish survival. We did not include the secondary effects of increased predation on infected fish." "The debate is over," said study co-author Alexandra Morton, a biologist with the Raincoast Research Society. "This paper brings our understanding of farm-origin sea lice and Pacific wild salmon to ...

Tearing down the fungal cell wall

...consin, Madison and international expert in fungal secondary metabolism, commented: "The finding that a non-rib...ustrates the versatile and essential role of these secondary metabolites in fungal biology. For years long ignored, the function of natural products is rapidly b...

1 2 3 4 5