molds in Biological News

Mites on hissing coackroach may benefit humans with allergies

... help decrease the presence of a variety of molds on the cockroaches' bodies, potentially reducing ... that the presence of these mites reduced the molds by at least 50 percent. Many of these same ... When Benoit and colleagues discovered the molds on cockroach surfaces in a previous study, they ...

Cell-building discovery could reduce need for some animal research

... blocks and then added them to more complex 3-D molds shaped either like a honeycomb, with holes, or a ... cells fused with liver cells in the more complex molds and formed even larger microstructures. Researchers found that the molds helped control the shape of the final ....

Montana State University researchers find gene that regulates mold's resistance to drugs

... to drugs. The gene, called srbA, allows molds to thrive during infections even when ... lethal infections caused by normally benign molds has increased tremendously over the last two ... first time that it is significant that invasive molds adapt to reduced oxygen levels during infection. ...

Case Western Reserve University engineers hit pay dirt with clay mixture

... of any container that can hold water from ice cube trays to rubber ducky molds to clam-shell packaging molds that hold and ship electronics. "This is cool stuff," says the associate ...

Mycotoxin Research joins Springer's life sciences journals program

... will appear in March 2009. High-quality original research papers and review articles in Mycotoxin Research address all aspects of toxinogenic molds found in virtually every environment worldwide as contaminants in foods and feeds, in mold-infested buildings and in living organisms infected by ...

Coating copies microscopic biological surfaces

... a mold depending on what they coat. The replica of a template can be used to create a mold in a harder, less damageable material to make many copies. molds can be combined and multiplied to create the desired surfaces. The researchers initially looked at surfaces with optical properties because they ...

To keep mouths safe, don't just wear a mouthguard; keep it clean

... September/October 2007 issue of General Dentistry, the AGDs clinical, peer-reviewed journal, mouthguards harbor large numbers of bacteria, yeasts and molds that can possibly lead to life and/or health-threatening infectious/inflammatory diseases. Everything that a microorganism needs to survive, ...

Symposium marks 30th anniversary of discovery of third domain of life

... true bacteria and archaea; and eukaryotes, including all animals, plants, fungi and protists (a diverse group that includes protozoans, algae, slime molds and other organisms). Some prominent biologists still hold to this classification scheme. Woese had set out to map the evolutionary history of ...

A step toward tissue-engineered heart structures for children

... of the cells that line blood vessel walls) from the blood of laboratory animals. They then seeded the cells onto tiny, valve-shaped biodegradable molds and pre-coated with proteins found in the natural matrix that surrounds and supports cells. Experimenting with different matrix proteins and ...

When the going gets tough, slime molds start synthesizing

... in challenging ecosystems." When slime molds starve, they collectively form a multicellular ... All that was left was to prove was that slime molds themselves used the newly discovered enzyme to ... Not only could the resulting "deficient" slime molds not make DIF-1 but they couldn't construct the ...

Breakthrough: Scientists create world's tiniest organic particles

... imprint lithography with silicon, glass or quartz molds where it is difficult to eliminate this residual ... what we call liquid Teflon, and the resulting molds look something like ice cube trays with tiny ... particles we want and gently wash them off the molds with buffer solutions into vials or other ...

Early exposure to indoor fungus molecules may protect infants against future allergies

... can contribute to disease," adds Tiina Reponen, PhD, professor of environmental health and corresponding author of the study. "Exposure to indoor molds during infancy may be associated with respiratory symptoms, such as persistent coughing and wheezing." The UC-led team analyzed the effects of ...

Detailed 3-D image catches a key regulator of neural stem cell differentiation in action

... likens to molecular dentistry, because his group is striving to shape inhibitory molecules to fit the groove in Scp1 much the same way that a dentist molds a filling to fit the cavity in a patient's tooth. ...

Wisconsin scientists discover a master key to microbes' pathogenic lifestyles

... to that of a potentially deadly human pathogen is just a breath away. Inhaled into the lungs of a mammal, spores from a class of six related soil molds found around the world encounter a new, warmer environment. And as soon as they do, they rapidly shift gears and assume the guise of pathogenic ...

Researchers make long DNA 'wires' for future medical and electronic devices

... today. The technique that Lee and Guan used is similar to a relatively inexpensive chip-making technology called soft lithography, where rubber molds press materials into shape. In this study, they arranged the DNA into rows of "stitches," pinstripes and criss-cross shapes. The pinstripes ...

New factor implicated in allergy and asthma attacks

... They zeroed in on a key enzyme known as NADPH oxidase, which they identified in grains of pollen produced by ragweed and 38 other plant pollens and molds linked to allergy and asthma attacks. Within minutes of exposure, ragweed pollen or its extract containing NADPH oxidase produce damaging reactive ...

Hurricane aftermath: Infectious disease threats from common, not exotic, diseases

... Mold growth is an indicator of excess moisture, and much will need to be done to dry out New Orleans and clean up mold growth. Some environmental molds can cause allergic reactions. ...

Researchers grow stem cells from human skin

... growth factors to coax the stem cells into becoming fat, muscle and bone cells. When the differentiated cells were seeded onto three-dimensional molds and implanted in mice, they maintained features consistent with bone, muscle and fat tissue. "Our study shows that stem cells can be obtained from a ...

Scientists use manufacturing methods to reconstruct mastodon

... building it up layer by layer, with each layer only 0.1 millimeter (0.004 inch) thick. Crews of UROP students and community volunteers also made molds of the bones, which took about a week for the ribs and almost a year for the skull, said biology undergraduate student Kelly Iknayan, of Gaylord, ...

Hirsute Or Hairless? Two Proteins May Spell The Difference

... cultures—to study how epithelial buds, the precursors of hair follicles, form. Their experiments point to two key actors in a signaling pathway that molds a targeted cluster of cells into a hair bud. During the budding process, overlapping signaling pathways from two adjacent embryonic cell layers—the ...