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Tag: "three" at biology news

NIAID DNA vaccine for H5N1 avian influenza enters human trial

...ill receive placebo injections and 30 will receive three injections of the investigational vaccine over 2 months and will be followed for 1 year. Volunteers will not be exposed to influenza virus. The vaccine contains no infectious material, and the virus was not present during any stage of the manufact...

Hybrid molecule causes cancer cells to self-destruct

...oduce the positive results, the researchers tested three other sugar-butyrate combinations and a butyrate s...added to lab dishes containing cancer cells. After three to five days, cancer growth had slowed in all of the dishes. After 15 days, however, cancer growth h...

Fighting influenza & co. with 40,000 blood samples

...os will be provided by the EU for this in the next three years. With other diseases it has already been proven that the older body can no longer produce a sufficient amount of effective antibodies. 'We want to know in particular whether this is the case with infectious diseases where the viruses were disco...

Are one-third of costly implanted heart devices unnecessary? New study suggests yes

...nd the causes of any deaths were tracked for up to three years. After that time, the data were analyzed by researchers from the University of Michigan Cardiovascular Center and VA Ann Arbor Healthcare System, in cooperation with the Ohio team. In all, 67 percent of patients had positive or inconclu...

3 proteins may play important role in nerve-cell repair

...n cells can grow new extensions when the amount of three particular proteins on their surface increases, a new study shows. The research examined three related receptor proteins, called GPR3, GPR6 and GPR12, on nerve cells in the brains of rats. Wh...

Misclassified for centuries, medicinal leeches found to be 3 distinct species

... that wild European medicinal leeches are at least three distinct species, not one. The results appear in t...ety B. "This raises the tantalizing prospect of three times the number of anticoagulants, and three times as many biomedically important developments in a...

Synthetic peptide targets latent papilloma virus infections

...ssues, including the penis, vagina and cervix, but three variants - HPV-16, 18 and 31 - are notorious as the primary causes of cervical cancer in the world. The virus hides out in epithelial stem cells, which are naïve cells at the base of the skin that can turn into many of the various types of cells that...

Robotic exoskeleton replaces muscle work

...em retained the ability to control the exoskeleton three days later. Electrical signals sent by the brain to our muscles tell them how to move. In people with spinal injuries or some neurological disorders, those electrical signals don't arrive full strength and are uncoordinated. In addition, patients...

Africa's first large-scale HIV vaccine study launches

...s the carrier or vector which transports copies of three HIV genes called gag, pol and nef. The vaccine is made in the laboratory and does not contain live HIV. The test vaccine therefore cannot cause infection. The hope is that these HIV genes will produce a cellular immune response to HIV and cause th...

Chlamydia vaccine a step closer to reality

...k we've got the answer. It is possible that within three to five years we'll be finished the animal trials and be looking at clinical trials in humans." Professor Timms said Sanofi-Pasteur's funding would allow QUT to evaluate the effectiveness of Chlamydia prevention methods developed at the university...

Research finds music training 'tunes' human auditory system

...e accuracy of their brainstem ability to track the three differently pitched "mi" sounds. "Even with th...y trained subjects were far better at tracking the three different tones than the non-musicians," says Wong, director of Northwestern’s Speech Research Labor...

Fitness has fallen since the days of Ancient Greece

...a 37m long warship powered by 170 rowers seated in three tiers. Using portable metabolic analysers, he meas...ch great speeds -- so were designed with more than three times more rowers than earlier warships. By placing the rowers on three tiers, the ship could remain...

Gene elevating breast cancer risk also causes prostate cancer

...e constitutional mutation in PALB2 was observed in three families. It was later showed that the relevant mutant protein is deficient in its ability to support the kinds of DNA damage responses in which PALB2 normally participates. The mutation was further also investigated in 1,918 specimens from an unsele...

Analysis of rhesus monkey genome uncovers genetic differences with humans, chimps

...the journal Science, the analysis reveals that the three primate species share about 93 percent of their DN...rhesus genome data were carried out at each of the three sequencing centers using different and complementary approaches and then combined into a single "mel...

Robotic therapy helps restore hand use after stroke

...men and six men who had suffered a stroke at least three months prior participated in the pilot study using...aneous improvement in function occurs in the first three months after a stroke, and after that things tend to plateau," said Dr. Steven C. Cramer, senior aut...

Cancer-killing invention also harvests stem cells

...TRAIL, but only two trigger cell death. The other three are called decoy receptors. Healthy cells contain a lot of decoy receptors, giving them a natural protection against TRAIL, whereas cancer cells mainly express the two receptors that signal cell death. During the death of the cancer cells, TRAIL...

Chemo combination improves survival in asbestos-related cancer

...in supplements folic acid and B12 ?survived nearly three months longer than patients getting cisplatin alone. Researchers led by John Green, M.D., at the Clatterbridge Center for Oncology in England, reviewed a study of 448 patients with advanced mesothelioma who were treated with either the single dru...

Secret of worm's poison pill box protein could produce new natural insecticide

...by itself. As well as helping collect together the three proteins and attach them to the insect’s gut the researchers think that the box shape of the XptA1 protein possibly also helps protect the poison complex from the acid attack they would face from the high pH values in the insect gut. The researchers ...

A rarity among arachnids, whip spiders have a sociable family life

... has developed into long whiplike feelers that are three to four times longer than the remaining three pairs of legs. The exceptionally flexible whips can move 360 degrees around their bodies and are cov...

Scientists discover new, readily available source of stem cells

...ed cells generated from the AFS cells included all three classes of cells found in the developing embryo - termed ectoderm, mesoderm, and endoderm. In their high degree of flexibility and growth potential, the AFS cells resemble human embryonic stem cells, which are believed capable of generating every typ...

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