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Tag: "expensive" at biology news

Plastic that grows on trees

...luding levulinic acid, making product purification expensive and uncompetitive with petroleum-based chemicals. Zhang, lead author and former post doc Haibo Zhao, and colleagues John Holladay and Heather Brown, all from PNNL, were able to coax HMF yields upward of 70 percent from glucose and nearly 90 percen...

Potent possibilities for parasite attack

...e drugs is long (4 weeks), given systemically, and expensive (US$120–150)". The affordable drugs have been in use for more than half a century and drug resistance is rife, creating a desperate need for new treatments. Biological studies for the function of 50% of Leishmania genes are lacking, so this comparati...

Mutating the entire genome

...e Genetics that they have developed a faster, less expensive technique for mutating those large, non-gene stret...eting large segments of DNA are time-consuming and expensive because they require researchers to make multiple manipulations in mouse embryonic stem cells, which...

3-D ultrasound scanner provides in-depth view of the brain

...ld miss something," he said. MRI machines are also expensive and require a dedicated space with special surgical tools that can be used in close proximity to the imagers' powerful magnets. Last year, the Duke team, led by biomedical engineering Professor Stephen Smith, reported the development of a 3-D ultr...

Modified mushrooms may yield human drugs

...A mushroom-based biofactory also would not require expensive infrastructure set up by major drug companies, he added....

Maggots rid patients of MRSA

...fe and cost-effective treatment in contrast to the expensive and potentially toxic antibiotic remedies." ...

Scientists seek useful traits in wild cottons

... help farmers combat thrips, but these methods are expensive and often only provide a three-week window of protection against this hungry pest, Arnold said. Arnold raises thrips on wheat, a favorite host plant, and forces them to move to neighboring cotton plants by killing the wheat with herbicide. ...

A new portable biosensor detects traces of contaminants in food more quickly and cheaply

...sor is faster, more portable and economic than the expensive laboratory methods which are used to detect contaminants, while having a very similar sensitivity. The system has been tested successfully to detect pesticides in samples of drinking water and commercial orange juice, as well as to detect traces of a...

Rare soft-shell turtle, nesting ground found in Cambodia

...revent illegal fishing of the species prized as an expensive delicacy in neighboring Vietnam. The organizations will also provide the communities with financial incentives to offset the potential loss of revenue from illegal trade in the turtles. ...

Super-fermenting fungus genome sequenced

...cellulosic ethanol, these forms of biomass require expensive and energy-intensive pretreatment with chemicals and/or heat to loosen up this complex. Enzymes are then employed to break down complex carbohydrate into sugars, such as glucose and xylose, which can then be fermented to produce ethanol. Additional...

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

...Ds or implantable cardioverter defibrillators, the expensive devices are designed to shock damaged hearts back into rhythm and save patients from sudden cardiac death, which kills 300,000 Americans each year. But a new study finds that while many of these patients will benefit from their ICDs, a large number ...

Study to explore using magnets to correct 'sunken chest'

.... "Most are willing to undergo a big, painful and expensive surgery to fix it. Why not a simple little outpatient procedure to fix it?" Researchers are seeking potential study participants who have sunken chest and are between 8 and 14 years of age, otherwise healthy and willing to participate in the 12-mo...

Common blood test can help distinguish between mononucleosis and tonsillitis

...Currently, distinguishing between them requires an expensive mononucleosis spot test. Dennis M. Wolf, B.Sc., D.O.-H.N.S., M.R.C.S., and colleagues at St. George's Hospital, London, retrospectively analyzed laboratory tests from 120 patients with infectious mononucleosis and 100 patients with bacterial tons...

Growth hormone is not the anti-aging bullet for healthy adults

...ging purposes. Growth hormone is among the most expensive of all hormones used for replacement therapy. One physician estimated that a year's supply for an adult with GH-deficiency caused by pituitary disease would cost between $7,500 and $10,000 per year. Estimates of the cost of GH for anti-aging purposes...

Producing medicines in plant seeds

...s for producing antibodies work well, but they are expensive and have a limited production capacity. The high c...ds. Because production with plants doesn't require expensive high-tech laboratories, scientists anticipate that, by working with plants, production costs will be...

New test for most virulent HPV strains under study

...40, are heading down the wrong path,?he says. Less expensive Pap smears likely would continue to be used in the under-30 group to catch the few infections that become problematic in this age group. Currently, there are not FDA-approved drugs to cure cervical pre-cancers and cancers caused by HPV, although c...

Using dental X-rays to detect osteoporosis

...sing the technique that is common for this kind of expensive examination (Bone Mass Density, BMD). In addition, one panoramic and two intra-oral radiographs were made. X-rays are used widely in dental practice for several reasons. Using the image information from these radiographs to detect patients at risk...

One-of-a-kind imaging probe reveals secrets useful for drug discovery

...ple sugar and vital cellular fuel. "Glucose is an expensive molecule to spray at your predators," Edison said. "But why is the glucose there? It may be something the walking stick uses to enable it to safely store the toxic material in the insect's gland until it is ready for use as a venom, to improve the pr...

Invasive ants territorial when neighbors are not kin

...g rather than competing. "Territory defense is expensive both in time and workers," explained Thomas, now a postdoctoral fellow at the University of Western Australia. "If nests invest this time and workforce into collecting resources and raising larvae instead of defending territories, then colonies shou...

Male contraception: One door opens, another closes

...rch in the lab, but abandon it when it gets to the expensive part: actually testing it in men and getting it to market." This problem of moving leads from the lab to human studies affects all types of contraceptive research. Michael Free, vice president and senior advisor for technologies at Seattle-based n...

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