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Tag: "alternative" at biology news

Gene therapy converts dead bone graft to new, living tissue

...sed section of bone and replacing it with the only alternative available ?a donated section of comparable bone from a cadaver. The new splint of bone is then literally screwed into place, giving the patient most of the strength and support of the original bone. Bone, unlike any other tissue in the human body, ca...

Spider Venom Could Yield Eco-Friendly Insecticides

Biochemist Glenn King is searching for an alternative to chemical pesticides. King's research on insect-specific neurotoxins focuses on one the world's most efficient insect predators -- spiders. The Blue Mountains funnel-web spider (Hadronyche versuta) -- a large Australian spider with a bite that is d...

Muscle-targeted gene therapy reverses rare muscular dystrophy in mice

...ing a modified virus. Gene therapy might offer an alternative treatment for those children who fail to respond to enzyme replacement therapy, he said. Even for those that respond well to enzyme infusions, treatment requires weekly injection of a large amount of the enzyme. "Gene therapy has the potential to re...

Scientists discover the cellular roots of graying hair

...g hair.The new findings won’t lead to a scientific alternative to hair dyesany time soon, if ever, even if they do solve a longstanding puzzleabout the underlying mechanism of graying. Of more interest to theresearchers is the pattern of cellular signals that triggers the deathof pigment stem cells, since melano...

Fundamental Finding Yields Insight into Stem Cells, Cancer; Opens Door to Drug Discovery

...g hair.The new findings won’t lead to a scientific alternative to hair dyesany time soon, if ever, even if they do solve a longstanding puzzleabout the underlying mechanism of graying. Of more interest to theresearchers is the pattern of cellular signals that triggers the deathof pigment stem cells, since melano...

Weizmann Institute scientists develop a new approach for directing treatment to metastasized prostate cancer in the bones.

...g hair.The new findings won’t lead to a scientific alternative to hair dyesany time soon, if ever, even if they do solve a longstanding puzzleabout the underlying mechanism of graying. Of more interest to theresearchers is the pattern of cellular signals that triggers the deathof pigment stem cells, since melano...

First-ever Compounds To Target Only Metastatic Cells Are Highly Effective Against Breast, Prostate, And Colon Cancers

...ting cell migration -- metastasis -- has become an alternative strategy that's gained a lot of interest among researchers." If compounds could be found that slowed or halted cancer spread, doctors could gain valuable time in shrinking the primary tumor. "If we had the luxury of time, we could treat that primary...

UCSD researchers maintain stem cells without contaminated animal feeder layers

... laboratories have attempted to grow stem cells in alternative cultures, problems have remained. In some cases, human feeder layers were developed but this added another measure of complexity to the culture system, Hayek noted. In recent studies in Wisconsin and Massachusetts, new feeder layers were developed, b...

Open microfluidic and nanofluidic systems

...on. One such method is provided by electrowetting; alternative methods, which have recently been developed, are substrate surfaces covered by molecular monolayers that can be switched by light, temperature, or electric potential. The experiments described in the PNAS study use a polymeric liquid that freezes qu...

Researchers trace evolution to relatively simple genetic changes

..."the marine fish actually carry the genes for this alternative state, but at such a low level it is never seen;" ...But they do have this silent gene that allows this alternative form to emerge if the fish colonize a new freshwater location." Also, comparing what happens to the...

Octopuses occasionally stroll around on two arms, UC Berkeley biologists report

..."the marine fish actually carry the genes for this alternative state, but at such a low level it is never seen;" ...But they do have this silent gene that allows this alternative form to emerge if the fish colonize a new freshwater location." Also, comparing what happens to the...

Novel ultrafast laser detection of cancer cells also may improve understanding of stem cells

...rapidly growing cancer cells derive energy from an alternative source such as free glucose in the cell." Fortunately, the mitochondrion is nearly the same size as the light wavelength of about 800 nanometers, a frequency otherwise little absorbed by the body. Because of this close match, the laser is exquisitel...

Simple drug has the potential to save many lives threatened by malaria

...nventional treatment (intravenous quinine) with an alternative treatment (artemether, given as a suppository) in 103 children aged between 6 months and 5 years with severe malaria. They found the two treatments broadly comparable and suggest that rectal artemether could be used to treat severe malaria where qua...

New RNA polymerase discovered in plants

...enced in 2001. It originally looked to him like an alternative form of either Polymerase I (Pol I), which makes the largest of the ribosomal RNAs, Pol II which makes RNAs for protein-coding genes, or Pol III, a specialist in making the shortest of the ribosomal RNAs and tRNAs. The big 'subunit' He and his coll...

A new study examines how shared pathogens affect host populations

...s a pathogen. Sharing a pathogen among one or more alternative species may actually be limiting the spread of the pathogen in any one particular host population. Thus, an epidemic on one species may result because of loss or reduction in the abundance of species in the community, without any numerical or genetic...

Gene Signatures Predict Interferon Response For Multiple Sclerosis Patients

...to monitor the patient or even whether to consider alternative treatments. In a new study, Sergio Baranzini et al. describe a computational model that can predict a patient's therapeutic response to interferon based on their gene expression profiles. Immune cells typically secrete interferons to fend off viruse...

Controlling protein diversity

...production of several proteins in a process called alternative splicing, said Baylor College of Medicine research...d cellular biology. The answer is a process called alternative splicing in which certain information from a gene is left out or included, changing the format of th...

Reducing malarial transmission in Africa

...mine (SP), the first-developed and least expensive alternative to CQ, is also increasing. These trends have forced many countries to change their treatment policies and use more expensive drugs, including drug combinations that will hopefully slow the development of resistance and minimize transmission of resist...

Transgenic plants remove more selenium from polluted soil than wild plants, new tests show

...raised hopes that the plants might become a viable alternative for cleaning up polluted soil. The new research findings, published Feb. 1 in the journal Environmental Science and Technology, show that three transgenic lines of the Indian mustard plant, Brassica juncea, absorbed two to four times more selenium f...

New winter hulless barley has high protein

...ering. This new hulless barley offers producers an alternative grain for both traditional and new markets, includ...alue specialty grains offers producers an economic alternative to commodity markets. The Small Grains Breeding Program continues to work on more new cultivars tha...

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