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Tag: "harmless" at biology news

Agent slows aging in mice

...armful to people. Occasionally, something that is harmless in mice turns out to be highly toxic for people,” Miller cautions, adding that the Food and Drug Administration doesn’t evaluate the safety of such herbal remedies....

Snoring in children might be an allergic type disease

...ep-disordered breathing, so it’s not necessarily a harmless condition,” Dr Marshall added. “In adults habitual snoring is seen as being caused by anatomical problems in the airway or obesity. But in children it seems that snoring is much more closely related allergy and inflammation”. “Our data hopefully c...

Revealed -- Mosquito genes that could be controlling the spread of killer viruses

...Aedes mosquito with similar groups of genes in the harmless fruit fly and the Anopheles mosquito that transmits malaria. When comparing the two different mosquitoes, the scientists found some similarities in the genes controlling their respective immune systems, but also numerous differences. The team aims to...

Experimental gene therapy 'abolishes' arthritis pain and lessens joint damage

.... To deliver the genes into cells, researchers use harmless viruses called vectors, which have evolved to invade human cells and insert their DNA. In designing the new therapy, Kyrkanides’ team chose to work first with vectors based on feline immunodeficiency virus (FIV), a lentivirus that attacks the immune ...

Genome of Clostridium botulinum reveals the background to world's deadliest toxin

... For each type, there is also a near-identical but harmless relative that lacks the toxin. C. sporogenes is the non-malignant, near twin of the organism sequenced. Professor Mike Peck, from the Institute of Food Research, commented that "It is astonishing that 43 per cent of the predicted genes in the C. b...

How the brain's backup system compensates for stroke

...brain activity. This brain-scanning technique uses harmless radio waves and magnetic fields to measure blood flow in brain regions, which reflects brain activity. The researchers found that the magnetic pulses to the left PMd briefly disrupted the subjects' performance on the task, but that performance qui...

Scientists discover rare 'gene-for-gene' interaction that helps bacteria kill their host

...100 cells of it are typically enough ?but most are harmless to humans and can be used as a biological control mechanism to replace pesticide use. The researchers, from the universities of Bath, Bristol and Exeter, all in the UK, used the large caterpillar Manduca sexta (tobacco hornworm) to study the bact...

First clinical trial of gene therapy for childhood blindness

...n delivers the normal genes to the retina, using a harmless virus or "vector" to carry the gene into the cells. The vector has been manufactured for this trial by Targeted Genetics, Seattle, USA. Previous work using animal models has demonstrated that this gene therapy can improve and preserve vision. Dur...

Africa's first large-scale HIV vaccine study launches

...sign will compare the test vaccine to a placebo (a harmless substance) and, to eliminate bias, neither volunteers nor researchers will know who receives the vaccine and who receives the placebo. The trial will last about four years. The trial has been approved by the South African Medicines Control Council an...

In-shell vaccine for chick disease

...ers an immune response, and incorporated it into a harmless non-pathogenic strain. Dr Paul Britton, Head of the Coronavirus Group at IAH Compton, explained, "This hybrid virus was able to induce immunity when inoculated before hatching. When hatched chicks were exposed to the virulent M41 strain, we observed ...

Tracing broken wiring in stroke patients

...RI is a widely used analytical technique, in which harmless radio waves and magnetic fields are used to map oxygen levels in brain regions. By performing FC MRI in patients with spatial neglect, the authors identified regions of the brain where there was a disruption of normal functional brain circuitry. I...

Cancer tip -- Nanoparticles can damage DNA, increase cancer risk

...til we understand which types of nanoparticles are harmless and which have the potential to be harmful, I think it is prudent to limit their introduction into the environment," recommended Pacheco....

Gene therapy for blindness clears hurdle in mice

...can be introduced into the eye using an apparently harmless virus to deliver the genetic material. "If we reduce the amount of protein formed by mutated rhodopsin, that may be sufficient to maintain vision in people who are affected by retinitis pigmentosa," Gorbatyuk said. "The second step, introducing th...

Cheaper, better disease treatments expected from faster approach to developing antibodies

...easy to grow in an inexpensive broth. As a result, harmless forms of the bacterium E. coli have already been used as factories to produce antibodies (protective proteins of the human body that fight viruses, cancer cells and other harmful agents). However, previous approaches required an antibody that looked ...

Studies yield insight into the numerical brain

...tional magnetic resonance imaging (fMRI), in which harmless magnetic fields and radio waves are used to measure blood flow in brain regions, which reflects activity. The researchers found that the initial presentation of the numeric stimuli activated the parietal region of the subjects' brains, which subsid...

CSHL research ties harmless viruses to cancer

... (CSHL) may link viruses that have been considered harmless to chromosomal instability (CIN) and cancer. "If the model that we propose is correct, protecting the body against viruses, or preventing the cell fusion that they cause may decrease the frequency of cancers and prevent their progression," said CSHL...

Common cold virus may kill breast cancer cells

...could have something that produces side effects as harmless as a mild, common cold-like infection yet it could successfully treat breast cancer," Ms Skelding said. Latest research to be revealed at Canberra briefing The Skelding project, and other ground-breaking research, will be discussed at the NBCF ...

Salmonella survives better in stomach due to altered DNA

...rous variant of this infectious Salmonella. Such a harmless variant can be used as a vaccine. Salmonella serovar Typhimurium DT104 is an antibiotic-resistant pathogen that is transmitted via food and is considered to be dangerous for humans. In recent decades the number of infections with this variant has...

Novel experiment documents evolution of genome in near-real time

...ences of more than 100 bacterial species, from the harmless to those that cause plague, but this new report shows how these genomes are moving targets. "Paleontologists look at the fossil record to study how evolution of dinosaurs and other animals occurred over millions of years, but in the case of the E. c...

'Protecting virus' offers instant flu protection and converts flu infections into their own vaccines

...these 8 strands. This deletion makes the virus harmless and prevents it from reproducing by itself within ...he cell by another influenza virus, it retains its harmless nature but starts to reproduce ?and at a much faster rate than the new influenza virus. This fast r...

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