Significant strides in small regulatory RNA research in plants
...gulated in response to abiotic stress. This report doubles the number of known miRNA families in Arabidopsis and identifies a number of new potential miRNA target genes, and further suggests that some miRNAs might be associated with regulation of gene expression in response to stress. Together, th...Human periodontal ligament stem cells isolated for the first time
...s replicate," said Seo. "In fact, we had over 100 doubles of the stem-cell colonies in culture. That's similar to the replication rate of dental pulp stem cells, which are known to proliferate very rapidly." After further validation of their findings, Shi said he and his colleagues decided to pursue the ne...Scientists discover genetic marker responsible for two-fold increase in risk of rheumatoid arthritis
...esearchers has discovered a genetic variation that doubles the risk for rheumatoid arthritis (RA). The variation, referred to as a single nucleotide polymorphism (SNP, pronounced "snip"), is present in about 28 percent of individuals with rheumatoid arthritis and 17 percent of the general population. This di...Fat cells could provide the key to a longer life
...ins: "Studies in rats have shown restricting diet doubles lifespan but the pay off is reduced fertility. Elsewhere, groups have looked at mutations such as the DAF-2 gene in C. elegans, which can also double life span or reduce fertility depending on what stage in life the gene is interfered with. "DAF-2 ...U-M scientists use 21st-century technology to probe secrets of M. tuberculosis
...production rate of M. tuberculosis bacteria, which doubles about every two days, helps the bacteria survive undetected inside macrophages for long periods of time. Mathematical models are a valuable addition to experimental research, because they make it possible to study complex biological systems with many...UC Riverside researchers develop low-carb corn with enhanced protein and oil
...erside reported the development of technology that doubles the protein and oil content of corn while reducing...ty of protein and oil, the presence of two embryos doubles their content in corn grain. The reduction in the size of the endosperm in the kernel, the tissue th...Penguin bones from 'land of fire' rewrite bird's evolution
...earlier than scientists had supposed. The new find doubles the known fossil record of penguins in South America. That's the conclusion of Dr. Julia A. Clarke, assistant professor of marine, earth and atmospheric sciences at North Carolina State University, and her colleagues from Argentina, who published the...MicroRNA targets: How big is the iceberg?
...lly validate all of them. This not only more than doubles the size of the iceberg's tip, but the fact that Cohen and colleagues publish their full lists and invite other researchers to check whether their favorite genes are likely to be microRNA targets, also suggests that we will soon get a better sense of...Salk news: gene therapy for Lou Gehrig's disease
...e therapy method postpones the symptoms and nearly doubles the life span in a mouse animal model of Lou Gehrig's disease, a research team led by the Salk Institute has found. The findings are the first to show this degree of recovery after the paralyzing and ultimately fatal nervous system disorder begins an...Another global warming surprise: Grasslands may become wetter as temperatures rise
...ext 100 years if increased fossil fuel consumption doubles the amount of carbon dioxide in the atmosphere. According to climate experts, the additional CO2 could produce a global greenhouse effect that would raise worldwide temperatures by 2 degrees Fahrenheit or more. To observe the long-term effects of glo...An old, familiar love nest helps sexual success
...illing and cooing in an old and familiar love nest doubles and even triples some birds' chances of producing progeny, researchers at Cornell University have discovered. Their study, which focused on Japanese quail, is the first to document what farmers and researchers have long suspected: that breeding is of...Cadmium studies suggest new pathway to human cancer
...ed water or eating foods that contain it. Smoking doubles the average daily intake. Until 1997, cadmium carbonate and cadmium chloride were used as fungicides for golf courses and home lawns. Cadmium disappears from organisms very slowly. Its half-life in the human body can be as long as ......ey are rewarded with a market price that more than doubles that of hybrid striped bass, tilapia or trout. "This research brings us one step closer to realizing profitable, large-scale aquaculture operations for Southern flounder," says Ronald G. Hodson, director of North Carolina Sea Grant, which has provide...Scripps scientists discover new approach for treating 'misfolding diseases'
... otherwise composed of disease-associated subunits doubles its stability. "The suppressor TTR subunits prevent misfolding by blocking tetramer dissociation accomplished by raising the barrier associated with this process," says Kelly. In the current study, Kelly and his found that the mechanism by which sma...DuPont shares significant wheat genome information
...ch can be used to locate an entire gene, more than doubles the amount of wheat genome information currently available to researchers through GenBank, a public database of DNA information held by the National Institutes of Health. An important piece in overall crop science research, DuPont's contribution wil...Experimental 'gene switch' increases lifespan with no ill effects
...arch they showed that partially disabling the gene doubles the worm's lifespan. The gene encodes a receptor for insulin as well as for a hormone called insulin-like growth factor. The same or related hormone pathways have since been shown to affect lifespan in fruit flies and mice, and therefore are likely t...Stanford scientists flick genetic switch; may lead to new disease treatments
... a DNA molecule that produces an unusual RNA which doubles back on itself like a hairpin to make a single, double-stranded molecule. Injecting this novel RNA into mice was as effective at inhibiting the luciferase gene as injecting double-stranded RNA. What's more, even after the hairpin RNA breaks down, the...Stanford researcher advocates aggressive, preventive anal cancer treatment
...idely used - about 350 cases per million. The rate doubles among HIV-positive men who have sex with men, he said. Welton said those at high risk for anal cancer include women who have had cervical cancer or a precancerous condition called cervical dysplasia, and their partners. Risks also are higher i...Inventor of artificial hand sees 'bionic' replacement parts becoming more human
... transistors we can fit onto an integrated circuit doubles about every 18 months," he said. "At this pace, within the decade, the processing for complex bionic activity will be implantable in the brain or elsewhere in the body." While scientists are eliminating obstacles to communication a......ry six months if not scraped and cleaned and this doubles in tropical waters. Its an age-old battle, says Dr. Steve McElvany, ONRs Program Manager for Environmental Quality, who also studies the mechanics of adhesion. ONR is looking hard at the development of non-toxic, foul-release polymeric marine coat...