Improved Fungicides May Be Easier on Environment

...d phytoalexins that help them ward off attacking fungi. However, sometimes fungi can become too tough, destroying the phytoalexin and overwhelming the defenseless plant. In laboratory tests on plants that normally handle fungicides well, Pedras's team found that the phytoalexin in a camelina, a flowering pl...

Interferon needed for cells to 'remember' how to defeat a virus, UT Southwestern researchers report

...rus, and you'll eliminate the bug, but your body won't remember how it defeated the virus," Dr. Farrar said. "Without these memory cells, your body is defenseless against re-infections." Ann Davis, student research assistant in immunology and lead author of the study, said this suggests a new role for interfe...

Important Message for 2008 Universal Children's Day

...-things that cost pennies to treat or prevent," said Caryl Stern, President and C.E.O., U.S. Fund for UNICEF. "It is unacceptable and inexcusable that defenseless children continue to die when the technology, expertise and solutions to save them exist right now." In 1980, the annual rate of under-five c...

'Cool' New Treatment for Hot Flashes in Breast Cancer Survivors

...imately 10 minutes to perform in an outpatient setting. "Estrogen-depleting drugs used in the fight against breast cancer often leave women's bodies defenseless against debilitating hot flashes and the sleep disturbances they cause," says Dr. Lipov. "This small pilot study conducted in breast cancer survivors ...

'Cool' new treatment for hot flashes in breast cancer survivors

...imately 10 minutes to perform in an outpatient setting. Estrogen-depleting drugs used in the fight against breast cancer often leave womens bodies defenseless against debilitating hot flashes and the sleep disturbances they cause, says Dr. Lipov. This small pilot study conducted in breast cancer survivors co...

Ancient Ancestors Might Have Had a Clue to HIV

...man lineage parted from the chimp one. It appears that ancient hominids successfully evolved immunity to that virus, but in doing so were somehow left defenseless against HIV. The ancient virus, PtERV1, left relics of itself in the DNA of modern chimpanzees. All primates make TRIM5alpha, which prot...

Legalization of Abortion in Mexico City Raises Heckles

...ing language 'to hide the tragic reality of the facts.' For example, abortion is called 'voluntary interruption of pregnancy' and not the killing of a defenseless human being, an abortion clinic is given a harmless, even attractive, name: 'centre for reproductive health' and euthanasia is blandly called 'death w...

Virus Can Mutate lethally With Help Of Carbohydrates

...re than 500 amino acids. They also found that a couple of years back these normally mild MVMp viruses mutated quite suddenly and became harmful to the defenseless mice. Agbandje-McKenna, who is associated with both UF's McKnight Brain Institute and the UF Genetic Institute explained “One or two changes in ...

The Latest Preventative Treatment Option for Prostate Cancer

...compared to those on placebo. Researchers in the current study say: "With no effective treatment options available, doctors and patients often feel defenseless against the onset of prostate cancer. Fortunately, these results offer a promising new preventative approach to prostate treatment. A chemopreventive ...

Scientists crack dengue fever puzzle

...tem to direct its response to that specific variant. But if an individual later contracts any of the three other variants, he or she is left virtually defenseless against the virus. The scientists evaluated the immune cell response of 73 Thai children hospitalized with dengue fever and found that all but t...

Defenseless in Biological News

Scripps scientists create first crystal structure of an intermediate particle in virus assembly

...arget vulnerabilities in the first stage of that assembly. "We believe that without its final shell to protect it, an immature virus will be much more defenseless to antiviral agents," he says. Knowing how viruses build these vessels to protect the naked viral DNA inside is also useful in the field of medical...

High hormone levels in seabird chicks prepare them to kill their siblings

...have like bullies after they grow up. They frequently seek out nestlings in their colony, and during those visits they often bite and push around the defenseless youngsters. Blood samples were taken from Nazca booby chicks within 24 hours of hatching. In 15 nests with two eggs, blood samples were taken from ...

Gladstone investigators discover how resting T cells avoid HIV infection

...e action of Vif, which would leave A3G poised and able to unleash its antiviral effect from inside viral particles. In resting T cells, though, HIV is defenseless against A3G, because there is no Vif in the incoming viral particles and the virus has not advanced far enough into its life cycle to make new Vif. ...

Defenseless plants arm themselves with metals

...abitat, are not any more susceptible to pathogens than similar plants growing nearby. When grown in the absence of metal, however, these plants are defenseless against diseases like powdery mildew, a common fungal infection that most other plants fight off with ease. In most plants, exposure to powdery mil...

Defenseless in Biological Definition

Parthenogenesis

... environment, but disadvantageous if the environment is changing. For example, if a new predator or pathogen appears and a genotype is particularly defenseless against it, an asexual lineage is more likely to be completely wiped out by it. In contrast, a lineage that reproduces sexually has a higher probabil...