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Tag: "influences" at biology news

Research identifies protein that signals flowering in squash plants

...tances through the phloem, but rather, it strongly influences the production of another substance (i.e. florigen) that does. Recent work in a number of laboratories has focused on a role for FT protein and/or FT mRNA as the florigenic signal, and evidence is building that the FT protein is responsible, at least...

Dirty snow may warm Arctic as much as greenhouse gases

...nt overall climate changing mechanism. Other human influences on Arctic climate change are particles in the atmosphere, including soot; clouds; and land use. Humans create the majority of airborne soot through industry and fuel combustion, while forest and open-field fires account for the rest. Because of hu...

Breakthrough developments in rheumatoid arthritis reported

...esenting related studies on biomarkers and genetic influences on drug response at the same meeting. Ident...he cellular pathway, it has been shown that PTPN22 influences the “trigger point” for activation of T-cells, immune cells that are normally called on to wage batt...

Study shows lizard moms dress their children for success

...rcumstances their progeny will encounter. Maternal influences like this probably occur in many species, but are ... of an interaction between genes and environmental influences on traits," Lancaster said. "Females provide an estradiol-rich prenatal environment to their entire ...

Gene responsible for common hearing loss identified for first time

...ude that we were the first to identify a gene that influences the susceptibility for otosclerosis”, said Ms Thys. “And, as further evidence, we were also able to show that a more active variant of this gene is protective against the disease.”...

Latent memory of cells comes to life

...mechanism gives both stability and openness to new influences which the cell could need to change state. Nature has a partner which controls the cells latent memory....

In young mice, gregariousness seems to reside in the genes

...and Panksepp, because it suggests that the genetic influences on juvenile social behavior may be quite distinct from genetic factors that affect adult social behavior, a finding the researchers suggest has great importance for understanding social evolution, as well as developing more realistic animal models of...

Out-of-body experiences may be caused by arousal system disturbances in brain

...ide it." Because the arousal system controls or influences sleep-wake states, alertness and attention, Nelson and the research team questioned whether people with near death experiences may already have an arousal system predisposed to allowing intrusion of REM sleep elements during the transition between wa...

Good behavior, religiousness may be genetic

... an investigation of the genetic and environmental influences on this type of behavior." This research is another example of the way that genes have an impact on behavior. "Society as a whole assumes that home environments have large impacts on behavior, but studies in behavior genetics are repeatedly showi...

Molecular differences between early and advanced melanomas could provide new drug targets

...o work on refining the exact mechanisms of how Akt influences the aggressive growth of melanomas."...

Scientists find new genes for Crohn's disease

...ability to respond effectively to harmful microbes influences his or her susceptibility to the disease. "We propose that genetic variation in the ATG16L1 gene leads to alterations in how the body uses autophagy and therefore may result in increased persistence of [toxic] cellular and bacterial components. Th...

Stability of mRNA/DNA and DNA/DNA duplexes modulates mRNA transcription

...odynamic stability of DNA/DNA and RNA/DNA duplexes influences mRNA transcription. The manuscript appears in the ...anism of how DNA/DNA and mRNA/DNA duplex stability influences mRNA level remains unclear. The authors propose two models, but further work is needed to understand...

Cancer vaccines -- Taking a jab at cancer by stimulating the immune system

...y excites the killer T cells into action, but also influences the helper T cells, which are instrumental in sustaining the killer T-cell response. The combined strategy has already shown great promise in studies using animal models and human cells in culture, according to the researchers. The phase I tria...

FSU researchers determine a critical factor in workings of proteins

... and the regulation of actin polymerization, which influences the physical structure of living cells. The association rate thus plays a critical role in the overall health of the organism." Mutations are one factor that can disrupt quick association between proteins and lead to disease, he said. "For exam...

Scientists find new genetic clue to cause of Alzheimer's disease

...in. The researchers began their search for genetic influences amid a group of proteins that transport APP within cells, looking for small changes, or "misspellings," in seven genes involved in moving APP within cells. To start, the scientists combed two large data sets of genetic information from families in...

Out of Africa -- Bacteria, as well

... bacteria isolated in Europe, for instance, reveal influences from Central Asia - an indication that human immigrants came to Europe from Asia. ...

Scientists map key landmarks in human genome

...e protein, MITF, made by one of these genes, which influences the expression of other genes. "We wanted to understand how MITF regulates target genes, and specifically where in promoter regions of those genes does MITF bind," Fisher said. "In the process of this work, we asked whether MITF is binding between...

Researchers uncover protection mechanism of radiation-resistant bacterium

...evels of manganese and low iron levels as possible influences on cellular recovery following irradiation. The team showed that the most resistant bacterial species contained approximately 300 times more manganese and three times less iron than the most sensitive species. In the new study, which examined the fun...

UCLA/Toronto researchers unlock key to memory storage in brain

...neurons. "We discovered that the amount of CREB influences whether or not the brain stores a memory," said Silva. "If a cell is low in CREB, it is less likely to keep a memory. If the cell is high in CREB, it is more likely to store the memory." Human implications of the new research could prove profoun...

Re-analysis of cigarettes confirms tobacco companies increased addictive nicotine 11 percent

...ufficient nicotine to create and sustain addiction influences their selection and combination of design parameters." Cigarette smoking causes an estimated 438,000 premature deaths (or about 1 of every 5 deaths) annually in the U.S., and approximately 900,000 persons become addicted to smoking each year. I...

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