Tag: "degrade" at biology news

Researchers Identify A New Cellular Structure: The "Dumposome"

..., molecular scissors to snip it out, and enzymesto degrade it (all of which Allis suspects work in tandem with dumposomes), but they did not anticipate finding aseparate structure devoted to DNA degradation. Dumposomes seem to target heterochromatin, a distinct form of highly repetitive DNA that contain...

Ten Years of Progress For Superfund Basic Research Program

...sessment andbioremediation of compounds that don't degrade very readily inthe environment. One of the success... in groundwater and soil.Different strains seem to degrade a wide variety of compounds." A second organism isolated and studied at UC belongs to thegenus Mycob...

Erodible plastic microspheres could be effective oral drug delivery system

...ecome moreadhesive to body tissues as the plastics degrade in water. The spheres range insize from 0.1 to 5 micrometers. For purposes of comparison, one thousand1-micrometer spheres could fit end-to-end on a pinhead. A novel proprietaryprocess, dubbed PIN for "Phase Inversion Nanoencapsulation," was used top...

Corn Byproduct Shows Promise As Biodegradable Packaging Material

...resins.When disposed of, the plasticized zein will degrade naturally, acting asa slow-release nitrogen source for soil, Padua said. In the Cereal Chemistry report, Padua, Huey-Min Lai, who has since earnedher doctorate in food science, and Lun Shin Wei, now an emeritus professorof food science, turned the z...

Munching Microbes Make A Meal Out Of Toxic Substances

...hat the soil contains microbes with the ability to degrade chemicals such as petroleum compounds," says Lorin...xygen. It's a fascinating case, because they don't degrade it all the time, and we don't really know why yet." Nies will present a paper on his research on pen...

Study Focuses On How Plants Help Toxic Pollutants Travel Around The World

... foam. Because the chemicals to be studied degrade so slowly and are believedto have such a negative impact on health, it is important that researchers havea better understanding of how chemicals are disbursed through the atmosphere,Hornbuckle said. The interaction of persistent organic pollu...

Gene For Last Major Form Of Batten Disease Discovered

...f the many lysosomal enzymes that work together to degrade proteins ismissing and the normal breakdown process is interrupted. This results in abuildup of protein and abnormal deposits of the pigment called ceroidlipofuscin, which appears greenish-yellow when viewed through a microscope inultraviolet light....

Scientists Sift Through Trash In Search Of Perfect Landfill

...ndfilled materials. Knowing how and what materials degrade is the first step toward making landfillsbetter garbage-eating machines - and providing an energy source from methane,Ham says. At the start of a six-year study, Ham's research team loaded up mesh sacks fullof fresh all-American garbage, from soiled ...

MSU Scientists Eavesdrop On Bacterial

...r slow down growth or to makespecific enzymes that degrade toxic chemicals. Davies zeroed in on two chemicals, called homoserine lactones, in acommon biofilm maker called P. aeruginosa. P. aeruginosa is the No. 1 cause ofhospital acquired infections, the chief organism in burn and open-woundinfection...

Naturally Produced Enzyme May Be Useful In Inflammatory Arthritis

...n. The extra levels of the enzyme could then degrade inflammation-causingpeptides and decrease damage and/or pain in joints. This concept is consistentwith the broader approach of stimulating natural substances to control disease,Ward said. “Stimulating natural substances to work at their n...

Biochemist Solves Riddle Of Collagen Stability

...eater value in biotechnology, because it would not degrade at temperatures so close to those of the human body," Raines said. Raines' research, funded by the National Institutes of Health, will now turn to whether natural collagen can also be strengthened. Natural collagen cannot be treated with fluorine, bu...

Poison-Eating Bugs Strike Gold

...nts, can be harnessed in engineered situations to degrade and detoxify waste effluents. "Using molecular biology techniques, Mr Stott has found that these microbes' closest relatives are probably the kinds of bacteria which are found in the depths of the ocean, feeding off the mineral-rich streams fro...

Three Institutions Combine Efforts In First-Ever Demonstration Of Long-Term Function In Transplanted Human Liver Cells

...aday or longer receiving phototherapy, which helps degrade the bilirubin in theskin, so it can be cleared from the body. Other than a liver transplant, there is no cure for Crigler-Najjardisease. The oldest living patient with this disease is 31 years old and fewpeople live beyond their teens. ...

Inhibition Of A Novel Gene Involved In Phosphorylating Starch In TransgenicPotato Tubers Leads To The Repression Of Cold Induced Sweetening

...he transgenic potatoes were unable to degrade their starch in leaves even after extremely prolonged (7 days) periods of darkness. The same was later measured in cold-stored potato tubers. The phenomenon of starch degradation and concomittant accumulation of sugars in pl...

Spinach Enzymes Neutralize Explosives

...eriaand buttermilk, have an apparent reactivity to degrade explosives. These nitroreductase enzymes are mixed with a buffer solution and a reductant, such as lacticacid or ethanol. In that mixture, the reductant reduces the enzymes. Then those reducedenzymesfurther reduce, or digest, explosives in the enzy...

EPA And UC Researchers Find Bacteria That Can Destroy Giardia Cysts

...lated andcharacterized a bacteria strain which can degrade the protozoanparasite Giardia lamblia , a common ... of microorganisms," said Kinkle,"which is able to degrade macromolecules such as cellulose andchitin. They also have a distinctive type of gliding motility." ...

A New Molecular Marker For Prostate Cancer

...pression of p27 through an increasein enzymes that degrade the p27 protein, and not because of a malfunction in thep27 gene, as is the case with some other common tumor markers like the p53 tumorsuppressor gene. This points to the importance of looking at protein expression-- and not simply genetic analysis ...

New Research On Environmental Pollutants

...till manufactured and tests show that many of them degrade very slowly. Thepresence of brominated substances in sperm whales, which seek food at greatdepths, indicates that these pollutants are found at several hundred metersdepth in the Atlantic. Polybrominated Biphenyls And Diphenylethers In Sperm Whales ...

Highlighting USGS Science At ACS

...hlor, belonging to the acetanilide chemical group, degrade after application to a farm field and their by-products are easily transported in a dissolved form into the ground water. Although the degraded forms of the herbicides are probably less toxic than their "parents", they are useful indicators of the p...

New "Restaurant" For Bacteria May Improve Pollution Clean-Up

...ases, BTXenters phase two only as fast as bacteria degrade what's already there. "Theorganismsthemselves determine the rate at which the BTX gets fed to them," says thechemicalengineer Andrew J. Daugulis, Ph.D., of Queen's University in Ontario. "Theycontrolthe process. Therefore we have a very efficient ...

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