Tag: "chemicals" at biology news

Hopkins researchers uncover critical player in cell communication

...wn TFII-I and separately assaulting the cells with chemicals caused the cells to take up more calcium than usual. The researchers realized that when they depleted the cells of TFII-I, the cell responded by installing more calcium channels in their surfaces that allow calcium and only calcium to enter the cel...

Natural anti-viral enzyme helps keep cancer cells alive, researchers find

.... UT Southwestern researchers are now looking for chemicals that block TBK-1. They are also screening cancer cells for similar biochemical pathways essential to their survival but not essential in normal cells. "This is making us think that there are many other surprises awaiting discovery regarding biologica...

Ghengis Khan wonder berry could conquer heart disease

...buckthorn is a known source of biologically active chemicals and is used in Tibet, Mongolia, China and Russia f...more than 40% of polyphenols - the same beneficial chemicals found in red wine, 50% of flavonoids and 70% of vitamin C present in the pulp of the red berries. ...

An infectious agent of deception, exposed through proteomics

...genetic sequence to those known to make and modify chemicals in the microbe's cell wall called peptidoglycan. ...armed with this mouse-model information can target chemicals or immune responses that disrupt peptidoglycan synthesis and other processes linked to Salmonella's ...

Parasitic plants sniff out hosts

... flail about looking for a host but sense volatile chemicals produced by other plants and identify potential ho...world and is a difficult pest to eliminate because chemicals that kill the parasite also often kill the host plant. "There is currently no reliable way to get ri...

With record resolution and sensitivity, tool images how life organizes in a cell membrane

What's the difference between a lifeless sack of chemicals and a living cell? It's all in the way they're organized, according to Stanford biophysical chemist Steven Boxer. With colleagues at Stanford, the University of California-Davis and Lawrence Livermore National Laboratory, he has developed a way to im...

Fire ant-attacking fly spreading rapidly in Texas

... specialize on small or large workers, on distinct chemicals laid down by the ants on trails, on time of day and on season and so forth. Our goal is to copy what we believe to be nature's complex control system." Gilbert and his colleagues are looking at the fire ant-fly relationship in parts of Argentina th...

Scientists find popular acne drug leads to depression-related behavior in mice

...ffects the brain." Accutane belongs to a group of chemicals called retinoids. This group includes vitamin A and vitamin A-related compounds known to affect development of the nervous system. For this reason Accutane is not prescribed to pregnant women. "Retinoids have long been studied for their ability to a...

China's environmental challenges

...iversity) tackle the topic of endocrine disrupting chemicals in China's rivers and coastal waters, looking particularly at the impacts on Chinese sturgeon, night herons, and carp--all of which have exhibited sex organ malformations. Frontier's Finishing Lines columnist Katherine Ellison highlights Goldman Env...

Define 'precautionary principle' to avoid clashes over biotechnology under World Trade rules

... the environment and the use for refrigeration of chemicals later found to destroy atmospheric ozone. So far, however, the precautionary principle has not been adopted authoritatively beyond international environmental law. The UNU-IAS report notes differences between Europe and North America are highly p...

California scientists find natural way to control spread of destructive Argentine ants

...ciety. Slight alterations in the "recognition" chemicals on the exoskeletons of these closely related pests...esults strongly suggest that by manipulating these chemicals on the exoskeleton, one could disrupt the cooperative behavior of these ants and, in essence, trigge...

Of rice and hen: Fashions from the farm

...ly of cellulose. Using a special combination of chemicals and enzymes, a process that is now under patent review, Yang and Reddy developed fibers from the straw. The properties of the fibers indicate that the fibers are capable of being spun into fabrics using common textile machinery. The resulting fabric ...

Biodegradable napkin -- featuring sensitive nanofibers -- may quickly detect biohazards

...s containing antibodies to numerous biohazards and chemicals and would signal by changing color or through another effect when the antibodies attached to their targets. Users would simply wipe the napkin across a surface; if a biohazard were detected, the surface could be disinfected and retested with another ...

Animal physiology conference sheds light on human physiology

...re runoff contaminated the water with agricultural chemicals -- died. The frogs where he did his dissertation work 10 years ago have disappeared. Ditto for the area he researched five years ago. His work translates to humans, he says. For instance, a clinical study in Missouri found a correlation between low ...

High-value chemicals produced from ethanol feedstocks could boost biorefinery economics

...ificant economic boost from the sale of high-value chemicals such as vanillin flavoring that could be generat... same feedstock. Revenue from these "side stream" chemicals could help make ethanol produced by biorefineries cost competitive with traditional fossil fuels. ...

Genome code cracked for breast and colon cancers

...y. Within each tumor cell, billions of individual chemicals called nucleotides pair together in a preprogrammed fashion to build the rungs of a DNA ladder that compose genetic instructions. Changes called mutations in the nucleotides can create coding errors that transform a normal cell into a cancerous one....

Fast-freeze snapshot yields new picture of nerve-muscle junction

...naptic proteins affect release of neurotransmitter chemicals at the junctions -- the signal that enables nerve cells to issue commands. The technique described in the new study, high-pressure freeze electron microscopy and immuno-gold staining, now provides an accurate picture of where these synaptic proteins...

UW-Madison researchers find new way to 'sweeten' key drugs

...nts and other organisms such as bacteria make many chemicals that can be used to treat human disease. Such natural agents are primary sources of drugs employed to fight cancer and thwart infection. Key chemical features of such drugs are natural sugars, molecules that frequently dictate a chemical compound's ...

Chemical compounds restore normal glucose levels and insulin action in obese mice

... cellular models and demonstrated how two of these chemicals - PBA (4-phenyl butyric acid) and TUDCA (taurine-conjugated derivative) - reduced ER stress, prevented JNK activation, and restored normal glucose homeostasis in type 2 diabetic mice. The researchers used the ob/ob murine model, where mice are both...

New genetic link to cot death identified

...h factor (VEGF) are involved in the production of chemicals called cytokines which are important for the correct functioning of our immune system. Specific variants of these cytokine-producing genes, says the research, leads to an excessive inflammatory response to bacterial infection resulting in cot death...

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(Date:8/22/2014)... CAEveryone,s heard of the birds and the bees. ... that are being fertilized. The fertilization process for ... communication between the male and female reproductive cells. ... Regensburg, Heidelberg, and Munich, and including Carnegie,s Wolf ... in the chemical signaling process that guides flowering ...
(Date:8/21/2014)... SHELTON, Conn. , Aug. 21, 2014 ... on the growing mobile commerce market, announced today that ... purchase common stock to be issued in its proposed ... been approved for listing on The Nasdaq Capital Market, ... of the common stock and warrants, and will trade ...
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