Tag: "revealed" at biology news

Research identifies protein that signals flowering in squash plants

...ocks failed to detect the presence of FT mRNA, but revealed the presence of FT protein in the translocation stream. This research provides some of the most solid evidence to date that FT protein acts as a florigenic signal. ...

Cellular message movement captured on video

... The two-color labeling technique of Chien and Hu revealed that red-labeled paxillin is linked to green-labeled actin filaments, the thinnest of three types of protein filaments that make up the cytoskeleton of cells of higher organisms. Paxillin either slides along the actin filaments or is pulled by them. ...

Old memory traces in brain may trigger chronic pain

...arian’s previous study, published in late 2006, he revealed that chronic back pain appears in a different part of the brain than the discomfort of burning your finger, for example. With a functional MRI, he found that chronic back pain shows up in the prefrontal cortex. By contrast, the acute sensory pain of ...

Researchers track how spores break out of dormant state

...akening dormant bacterial spores, researchers have revealed through atomic force microscopy (AFM) the alterati...de fibrils remained. The in vitro AFM imaging also revealed the porous fibrous cell wall structure of newly emerging and mature vegetative cells, consisting of ...

The insect vector always bites twice

...ng sickness) by Glossinia species or tsetse flies, revealed that the antibody response can represent a good indicator of the degree of exposure of humans to bites, which could in the long term allow improved assessment of the risk of transmission of these diseases in a given region. In Senegal the rate of ...

A new plant-bacterial symbiotic mechanism promising for crop applications

...zobium, bacteria of the Rhizobia family, have just revealed a new mode of communication at molecular level between these two organisms. The bacteria of this original model have their own photosynthetic pathway, a unique property in the rhizobia (2). This special character confers on it the exceptional, rare a...

Research team identifies new Alzheimer's gene

...m additional LOAD susceptibility genes. The search revealed GAB2. Based on the genetics of this and other neuroscientific findings, researchers suggest the healthy form of the GAB2 gene may protect brain cells from developing tangles, one of the hallmarks of Alzheimer’s disease. If the findings are confirm...

Caribbean frogs started with a single, ancient voyage on a raft from South America

...on," explained Hedges. The study's DNA research revealed that, while many ocean dispersals may have occurre...bean and Central American frogs, the research also revealed and defined an unusually large and unpredicted group of species in South America. "The South Americ...

New bacterium discovered -- related to cause of trench fever

...returning travelers. But genetic detective work revealed that she was infected with a new bacterium that had never before been isolated from a human. A UCSF infectious disease team, in collaboration with colleagues from other institutions, found that the new microbe is genetically similar to one sprea...

Study shows big power of small RNAs, not just proteins, in halting cancer

...t the growth and even eradicate cancers, but we’ve revealed something very surprising about what makes this pa...lthy cells. Most suspected that proteins would be revealed as key to the power of p53, but this latest research published June 6 by Nature now identifies miRNA...

In mice, drug protects against diabetes and atherosclerosis

...mm, found a mutation in the aP2 gene. Tissue tests revealed that many of the subjects had a variant of the aP2 gene that sharply reduced production of the aP2 protein. In 2006, the scientists published their findings that individuals with a genetic variation of aP2 helps to protect humans against type 2 diabe...

Ancient DNA traces the woolly mammoth's disappearance

...he bones, teeth, and tusks of the extinct mammoths revealed a “genetic signature” of a range expansion after the last interglacial period. After the mammoths’ migration, the population apparently leveled off, and one of two lineages died out. “In combination with the results on other species, a picture is ...

Rising skin cancer rates are more likely to affect wealthy people, says 12-year review

...orthern Ireland have fair skin and the 2001 census revealed that less than one per cent of the population belongs to a black or minority ethnic group” adds co-author Dr Olivia Dolan, consultant dermatologist at the Royal Victoria Hospital. “This means that our results are less likely to be affected by diff...

Study shows lizard moms dress their children for success

...ard eggs with an array of different hormones. That revealed a striking influence of estradiol on back patterns. She also tested eggs from lizards captured in the wild and found a wide range of naturally occurring estradiol concentrations in the egg yolks. The researchers then performed experiments in bree...

Herpes virus hijacks DNA repair process

...etic comparisons with several human herpes viruses revealed kinases similar to orf36 in the human viruses. Scientists then took a similar kinase from human Epstein-Barr virus and showed that introducing it into cells also activated the DNA damage response. When the research team genetically disabled orf36 ...

Reconstructing the biology of extinct species: A new approach

...ecies to its category of movement. The results revealed a highly significant statistical relationship betw... had to take body size into account. The research revealed that this functional tie between the semicircular canals and locomotor pattern is evident both withi...

Gene therapy study shows safety and statistically significant improvement in Parkinson's disease

...ization as measured by PET scan. The PET scan data revealed a significant improvement (p<0.001) in brain metabolism on the treated side of the brain compared to the untreated side. No adverse events related to the gene therapy procedure were reported throughout the duration of the 12-month study, or in th...

Revealed -- Mosquito genes that could be controlling the spread of killer viruses

...enior author on the paper explains: “Our study has revealed the genetic ‘landscape’ made by parts of this mosquito’s newly-sequenced genome which are involved with immunity. By working to understand as much as possible about these genes, and the way they interact with specific pathogens, we hope to gain a mor...

A first -- Hebrew University scientist observes brain cell development in 'real time'

...l days at different stages of development. Mizrahi revealed that dendritic formation is highly dynamic. Moreover, once incorporated into the network, adult-born neurons in the study also remained dynamic and capable of continuous change. This method provides a mechanism for observing, for the first time i...

Genome of Clostridium botulinum reveals the background to world's deadliest toxin

...ism that produces the world’s most lethal toxin is revealed today. This toxin is the one real weapon in the genome of Clostridium botulinum and less than 2 kg — the weight of two bags of sugar — is enough to kill every person on the planet. Very small amounts of the same toxin are used in medical treatments, ...

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