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Tag: "synthesis" at biology news

Discovery in orange cauliflower may lead to more nutritious crops

...ice" by inserting several genes that increases the synthesis of beta-carotene. But this technique has proved less effective in many plants. Li's research, which increases a plant's ability to store beta-carotene, may offer an alternate and complementary technique for making staple crops more nutritious. Li, ...

The insect vector always bites twice

...ia flies, the immunogenic proteins responsible for synthesis of these specific antibodies (2). The different saliva proteins of four Glossinia species, uninfected, vectors or non-vectors, were separated then put into contact with the serum of individual subjects, infected or uninfected, exposed to bites. Compa...

A new plant-bacterial symbiotic mechanism promising for crop applications

...ires the presence of several nod genes which allow synthesis of the Nod factor, a compound elaborated by the bacterium which enables the plant to recognize it, by molecular recognition, thereby allowing the microorganism to penetrate inside the plant by the root hairs. The finding raises the question as to ...

Researchers shed light on mechanism of action used by anti-cancer drug

...bition, but rather reflected interference with the synthesis of Mcl-1. They found that sorafenib interfered wit... these actions was to induce a shutdown of protein synthesis accompanied by a dramatic increase in cell death. “The notion that sorafenib acts by inhibiting ...

Technique monitors thousands of molecules simultaneously

...e generation of acids and bases and applied to the synthesis of DNA and peptide polymers. But could this approach be used to make the more difficult to synthesize shaped molecules needed for mapping a receptor? This would require a diverse array of reactions to be compatible with the chips, particularly reacti...

Blood sugar's manufacture limited by building blocks' supply

...e reserves are depleted, the body must rely on the synthesis of new glucose, primarily in the liver, to prevent...ge, a condition known as hypoglycemia. The de novo synthesis of glucose depends on the availability of a substrate molecule that comes from an amino acid. The...

Aspirin discovery may improve cancer treatments

...liams said. "Inhibiting or slowing down protein synthesis reduces the accumulation of incorrectly folded pro..., which reduces cellular stress and allows protein synthesis to return to normal." Under conditions of cellular stress, eIF2Ą is phosphorylated by a group o...

Mutation improves memory, may lead to memory-enhancing pill

...e first genetic evidence that control over protein synthesis plays an important role in the formation of lastin...one of its amino acids, it switches on the protein synthesis of another factor that halts production of genes required for the long-term storage of memories. Son...

Woman's Day and For Womens of Science

...tion. It presents 33 principal findings from five synthesis papers prepared by the world's leading mercury scientists and published in the same issue of Ambio. The declaration and supporting papers summarize what is currently known about the sources and movement of mercury in the atmosphere, the socioeconomi...

Mercury contamination of fish warrants worldwide public warning

...tion. It presents 33 principal findings from five synthesis papers prepared by the world's leading mercury scientists and published in the same issue of Ambio. The declaration and supporting papers summarize what is currently known about the sources and movement of mercury in the atmosphere, the socioeconomi...

Novel antigen-cloning technique may boost efforts to develop a melanoma vaccine

...Herlyn says. RPL8 is a protein involved in protein synthesis and is also expressed in normal cells. Herlyn's study shows that RPL8 is over-expressed not only in melanoma, but also in breast cancer cells and gliomas, the most common type of brain tumor, indicating that it has potential as a vaccine for patients...

RNA enzyme structure offers a glimpse into the origins of life

...ce of life. In all forms of life known today, the synthesis of DNA and RNA molecules is carried out by enzymes made of proteins. The instructions for making those proteins are contained in genes made of DNA or RNA (nucleic acids). The circularity of this process poses a challenge for theories about the origin...

Genes may determine success of hip replacement surgery

...e metabolism and the immune response. Vitamin D synthesis is important for strong healthy bones. Variations in the interleukin 6 gene did not seem to have any effect. But those with variations in MMP1 were more than three times as likely to have aseptic loosening as those who did not carry the genetic va...

New synthetic self-assembling macromolecules mimic nature

...a Ph.D. candidate in polymer chemistry, report the synthesis of a new family of charged, rod-like block copolymers. Only as long as a fraction of the diameter of human hair, the tiny rods can be either positive or negative, or can have alternating positive and negative charges along the backbone. The rods sel...

Primitive yeast yields secrets of human cholesterol and drug metabolism

...mportant class of enzymes required for cholesterol synthesis and drug metabolism,?says Peter Espenshade, Ph.D., assistant professor of cell biology at Johns Hopkins. “We’re excited because although we originally identified this protein in yeast, humans not only have the same protein, but it works the same way....

Key found to kill cystic fibrosis superbug

... antibiotics. They hypothesize that preventing the synthesis of a key sugar required for this armour, 4-amino-4-deoxy-L-arabinose (Ara4N), may lead to a susceptibility within the cell membrane to antibiotics. "We are very excited with these findings, as they will let us come up with novel molecules to disr...

MIT biologists solve vitamin puzzle

...researchers have discovered the final piece of the synthesis pathway of vitamin B12-the only vitamin synthesize... One of the most unusual aspects of BluB-catalyzed synthesis is its cannibalization of a cofactor derived from another vitamin, B2. During the reaction, the B2 c...

Magic Beans -- Anti-obesity soya could help prevent diabetes

...tabolism in the liver and adipose tissue, reducing synthesis of new fatty acids and cholesterol. It is this metabolic effect that may explain the traditional Asian use of black soya in the treatment of diabetes. ‘The key problem in type II diabetes is impairment of insulin action, mainly as a result of excess ...

Vitamin D deficiency widespread during pregnancy

...als and vitamin supplements. Sun exposure for skin synthesis of vitamin D also remains critical. "Our study shows that current vitamin D dietary intake recommendations are not enough to meet the demands of pregnancy," Dr. Bodnar said. "Improving vitamin D status has tremendous capacity to benefit public hea...

U of M researchers invent 'flashy' new process to turn soy oil, glucose into hydrogen

...ces hydrogen and carbon monoxide, a mixture called synthesis gas, or syngas, because it is used to make chemica...eyer and Paul Dauenhauer--have produced a pound of synthesis gas in a day using their small-scale reactor. Here's how the new process works: The oil and sugar...

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(Date:4/17/2014)... anthrax detection cartridge developed at Sandia National Laboratories and ... easier, faster and cheaper. , Bacillus anthracis ... in soils all over the world and can cause ... animals. The bacteria can survive in harsh conditions for ... may occur through skin contact, inhalation of spores or ...
(Date:4/17/2014)... in bone marrow need to produce hydrogen sulfide in ... to a new study from the Center for Craniofacial ... of USC. , Professor Songtao Shi, principal investigator on ... by the cells governs the flow of calcium ions. ... that results in osteogenesis, or the creation of new ...
(Date:4/17/2014)... parasites and pathogens that devastate honeybees in Europe, Asia ... but do not appear to be impacting native honeybee ... of researchers., The invasive pests include including Nosema ... African honeybees appear to be resilient to these invasive ... to control pests in Europe, Asia and the United ...
Breaking Biology News(10 mins):Pocket-sized anthrax detector aids global agriculture 2Pocket-sized anthrax detector aids global agriculture 3East African honeybees are safe from invasive pests… for now 2East African honeybees are safe from invasive pests… for now 3
(Date:4/18/2014)... group of scientists from the University of Kentucky ... Aging has found interesting new information in a ... disease (PD). , Published in the journal ... cognitive function in depressed and non-depressed patients with ... used to treat motor symptoms of Parkinson,s disease ...
(Date:4/18/2014)... Johns Hopkins University School of Medicine researchers have been ... for diabetes, Novo Nordisk announced this month. Of the ... and Obesity Biologics Science Forum Program, only four projects ... Hopkins researchers. They are Jonathan Powell, M.D., Ph.D.; G. ... , Jonathan Powell, a professor of oncology, will use ...
(Date:4/18/2014)... Calif. (April 18, 2014) ― A new study in ... weekly patterns in health-related Google searches reveals a recurring ... strategies. , Investigators from San Diego State ... the Monday Campaigns, analyzed "healthy" Google searches (searches that ... "healthy diet") originating in the U.S. from 2005 to ...
(Date:4/17/2014)... Men who show signs of chronic inflammation in non-cancerous ... actually having prostate cancer than those with no inflammation, ... researchers from the Johns Hopkins Kimmel Cancer Center. , ... stronger for men with so-called high-grade prostate cancer ... indicating the presence of the most aggressive and ...
(Date:4/17/2014)... published today in PLOS Pathogens , children who ... common can mount an immune response to infection with ... bouts of high fever and illness and partially control ... findings may help researchers develop future interventions that prevent ... , Each year, approximately 200 million cases of malaria ...
Breaking Medicine News(10 mins):Health News:Treating depression in PD patients: New research 2Health News:New research shows people are thinking about their health early in the week 2Health News:Chronic inflammation linked to 'high-grade' prostate cancer 2Health News:Chronic inflammation linked to 'high-grade' prostate cancer 3Health News:Study sheds light on how the immune system protects children from malaria 2
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