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Tag: "each" at biology news

Cartilage discovery offers arthritis hope

...vere pain as the two ends of the bones rub against each other." The team's findings ?published in the journal Proceedings of the National Academy of Sciences ?also explain why mutations in cartilage collagen genes cause osteoarthritis. "Without a detailed understanding of the structure of these fibril...

Scientists sequence genome of parasite responsible for common sexually transmitted infection

...roughly 7.4 million new cases in the United States each year, according to the U.S. Centers for Disease Control and Prevention. In women, trichomoniasis infection commonly occurs in the vagina, resulting in heavy yellow-green or gray vaginal discharge, vaginal odor, discomfort during sexual intercourse...

New molecular pathway could reveal how cells stick together

...evelopment of organisms. Cells must interact with each other to produce system responses, like the remode...reviously unknown pathway by which cells signal to each other. Ninjurin is anchored to the surface of cells, but after being cut by MMP, a ninjurin segme...

Is there a pilot in the insect?

...rds. They are also observed on the microhelicopter each time it faces a laboratory-produced headwind, reinforcing the hypothesis that flying creatures have an optic flow regulator. The very simple control scheme proposed takes into account 70 years of often surprising observations of the behavior of wi...

Study to explore using magnets to correct 'sunken chest'

...bout one in 800 children born in the United States each year and is three times more common in boys than girls. A UCSF team developed the new procedure, in which a magnet attached to the child's breastbone is coupled with a second one outside the chest that creates a steady, controlled, outward pull on...

20-year study shows significant rise in childhood obesity, especially among girls

...in 2002 ?with equal numbers of girls and boys from each of the three age groups ?four, ten and 16 - included in both samples. The data was drawn from official child health and school health records, as parents have a tendency to under-report the weight of obese children and are less likely to take part in...

UBC researchers reveal dwarf aquatic plants' hidden ancestry

..., and have dozens of minute flowers clustered into each compact flower head. Native to Australia, New Zealand and India, they thrive in seasonal freshwater pools and swamps, and may blossom underwater at depths of up to one metre, or as the pools dry out. "For more than a century, scientists have b...

UCSF brain tumor vaccine trial shows promising results

... 2 study is planned for late 2007. Derived from each individual’s tumor, vitespen contains the “fingerprint?of the patient’s particular cancer and is designed to reprogram the body’s immune system to target only cancer cells bearing this fingerprint. The vaccine is intended to leave healthy tissue unaf...

Cancer vaccines -- Taking a jab at cancer by stimulating the immune system

... cells than normal, which then increased following each injection. Likewise, the patients also experienced...head and neck cancer, has three experimental arms, each including a DC-based vaccine containing p53-derived T cell-specific peptides. The three groups var...

New biofuels process promises to meet all US transportation needs

...inable supply of about 1.4 billion tons of biomass each year that could be used specifically for the production of liquid fuels. With conventional methods, that quantity of biomass would provide 30 percent of the fuel required for the nation's annual transportation needs. But the same quantity of biomass ...

Failure to meet United Nations sanitation target could affect millions of the world's poorest

...r, which has celebrated a National Sanitation Week each year since 1998 and has incorporated sanitation services into its national health policy. By contrast, neighboring Indonesia, with a per capita gross domestic product of $4,500, is lagging in its efforts to expand access to sanitation services and is...

Researchers create artificial enzyme that mimics the body's internal engine

...known as mitochondria. Embedded in the membrane of each mitochondrion is a structure called the electron t...ply problem, the scientists systematically removed each of the three active centers-phenol, iron and copper-one at a time, as if the enzyme had been damaged...

DNA ends: Common tool, different job

...sts that multiple RPA-like complexes have evolved, each making individual contributions to genomic stabili... Biology Laboratory at the Salk Institute. With each round of cell division, telomeres ?long stretches of repetitive DNA ?erode a little bit further. Som...

Genes and biomarkers that allow doctors to choose the right therapy for the right patient

...east cancers. They measured molecular profiles of each cell line and used these to identify subsets of ce...sible to test all of the experimental medicines in each cancer subtype. This ‘systems?approach suggests a way to prioritize drugs for use in patients and f...

Illuminating the dark side of plants

...It is lavishly illustrated, elegantly highlighting each plant's distinguishing characteristics. The image...distribution, and information on the toxic part of each plant, and provides the latest medical information along with scientific references. An easy-to-use...

FSU researchers determine a critical factor in workings of proteins

...s: how much the rate would be if the proteins find each other purely through random motion, and how much electrical attraction increases the rate. "This theory opens numerous opportunities for further study," Zhou said. "For example, we now can begin to uncover the molecular bases of large variations i...

Proteins important in Alzheimer's, Parkinson's disease travel in the slow lane

...ogether as "packets," essentially piggy-backing on each other, possibly on the same specialized proteins called molecular motors. "It makes sense when you think about it ?why would the neurons spend so much energy transporting proteins separately when they’re going to the same place anyway, like car pooli...

Twin studies reveal genetic components leading to cardiac and kidney disease

...in the frequency of traits between the siblings in each MZ and DZ twin pair establishes what is called the index of heritability. The human genome has three billion base pairs and about 30,000 genes. O’Connor and his research team have looked at about 900 of these 30,000 genes. "We’re just scratc...

Erectile dysfunction in diabetes is due to selective defect in the brain

...cted) served as controls. The experiments began on each of the rats four weeks after the injections. Four experiments were conducted. Experiment one examined the effect of L-NMMA on NMDA mediated behavioral responses in normal rats; experiment two measured behavioral responses to NMDA or sodium nitrop...

Researchers find 6,000-year-old fossil evidence

...se groups might have had some type of contact with each other," Pearsall said. Loma Alta and Real Alto, the sites in southwestern Ecuador studied by Pearsall, turned up the oldest starch of domesticated chili peppers, at approximately 6,000 years old. Starch of the peppers in other sites ranged from ap...

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