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Tag: "similar" at biology news

Prenatal Stress Keeps Infants, Toddlers up at Night, Study Says

...persisted until he or she was 30 months old. A similar effect was found in children born to mothers who were depressed during pregnancy. These prenatal mood disturbances worked as reliable predictors of childrens sleep problems even when investigators controlled data for other factors already linked ...

Scratch no more: Gene for itch sensation discovered

...rs," Chen says. "We know of some proteins that are similar to GRPR, so now we're trying to determine if there is functional redundancy in the itching pathway." GRPR knockout mice had normal reactions to painful stimuli, indicating that pain and itch are mediated by separate sets of genes in the spinal cord....

Identified main genetic variants involved in response to HIV

...d to a more rational vaccine development. This and similar studies should push us toward more personalised medicine, where the most suitable drugs for each individual would be determined on the basis of their gene characteristics....

Math that powers spam filters used to understand how brain learns to move our muscles

...thwestern, exploited the fact that all people show similar “probable” learning patterns and use them to devel...,” says Shadmehr. E-mail spam filters operate on a similar principle; they predict which key words are “probably” attached to mail you don’t want and “learning...

Cigarette smoke alters DNA in sperm, genetic damage could pass to offspring

... Yauk, previous studies have shown that Ms6-hm and similar locations of non-coding DNA are sensitive to damage from radiation, mutagenic chemicals and intense industrial air particulate pollution. While the researchers did not specifically study the protein-coding regions of DNA where genes reside, Yauk note...

Researchers track how spores break out of dormant state

...rodlet structures, which appear to be structurally similar to amyloid fibrils that have been associated with neural degenerative diseases, such as Alzheimer’s and prion diseases. “The extreme physical and chemical resistance of Bacillus spores suggests that evolutionary forces have captured the mechanical ri...

Modeling the restless brain

...f the total activity of the brain. Fluctuations of similar magnitude -- the ones studied by Sporns and Honey ... simulations. Sporns said he wants to create a similar large-scale computer model of the human brain that will allow them to study larger networks and conn...

How sneaky HIV escapes cells

...nside the cell to the membrane, the proteins met a similar exosomal deportation fate. The major HIV protein ‘Gag’ has both of these properties that cells sense in selecting exosomal cargoes. When the researchers removed the tethers or clumping signals from Gag it could no longer get out of the cell. Howe...

Snoring in children might be an allergic type disease

...diseases. So whilst the condition looks and sounds similar in adults and children it can have quite different...oring among pre-school children with rhinitis were similar to those for allergic diseases in a group of children who have been monitored since before they were...

A new plant-bacterial symbiotic mechanism promising for crop applications

...or, prompted the team’s hypothesis that a molecule similar to a plant hormone (4), cytokinin, could act in the mechanisms by triggering nodulation. The discovery of the nature of the signal molecule itself, which remains to be fully determined, brings a glimpse of future agricultural applications. Many p...

Bigger horns equal better genes

...ounger ibex (one- to six-years-old) are relatively similar regardless of their genetic diversity. However, once the ibex mature to the age when they begin competing for reproductive mates (7 to 12), horn length varies according to genetic diversity: the greater the diversity, the greater the length of the ho...

Largest synthetic gene ever built offers insights into anti-malarial drug resistance

... make them resistant to that drug as well as other similar agents. Not all mutations found in all resistant isolates are the same, however. Parasites in different geographic regions have developed unique patterns of mutations in the three genes mentioned above. Now, researchers can tell where a drug resistan...

New bacterium discovered -- related to cause of trench fever

...n, who has since recovered, suffered from symptoms similar to malaria or typhoid fever, two infections that c...tutions, found that the new microbe is genetically similar to one spread by body lice in the trenches during World War I. That bacterium, called Bartonella qui...

Newly found sensing system enables certain bacteria to resist human immune defenses

...now Dr. Otto and his research group are hoping for similar possibilities for gram-positive bacteria with their discovery of “aps,” which stands for antimicrobial peptide sensor. Aps has three parts: apsS, the sensor region; apsR, the gene regulation region; and apsX, which has an unknown function that Dr. Ot...

New collaborative research reveals chimpanzees can sustain multiple-tradition cultures

...n ancestor five to six million years ago who had a similar level of cultural complexity. For years, primatologists have suggested different communities of chimpanzees across Africa vary in many behavior patterns, indicating they have cultures specific to each community. In the wild, however, it is difficu...

Alzheimer's disease to quadruple worldwide by 2050

...f the disease by 12 million fewer cases in 2050. A similar delay in both the onset and progression of Alzheimer’s disease would result in a smaller overall reduction of 9.2 million cases by 2050, because slower disease progression would mean more people surviving with early-stage disease symptoms. However, n...

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

...uffer from malignant melanoma. Men displayed a similar pattern. They were 41 per cent more likely to suffer from basal cell carcinoma if they lived in an affluent area and two and a half times more likely to suffer from malignant melanoma. Affluence didn’t, however, seem to affect squamous cell carcin...

U-M researchers discover gene switched off in cancer can be turned on

...ncer cell lines in particular, although they found similar results in a variety of other cancer cell lines tested. A potential target to treat lung cancer is particularly crucial as the death rate from lung cancer has not changed in 30 years. Newer treatments are much less toxic and extend lives by months, b...

Physicist cracks women's random but always lucky choice of X chromosome

...cations as at least 10% of our genes may behave in similar ways as mechanism that "chooses" between X chromosomes. Examples of this range from the immune system to our olfactory apparatus. Coming at the problem from the perspective of a physicist Dr Nicodemi has found an explanation for the random selecti...

Australian wins prestigious prize in biodiversity informatics

...o user needs. His work includes innovations that similar developments lack, and he has a rare mix of skill sets." The Prize winner also works on making desktop software tools into web-based tools that can be shared across the Internet. Sharing analytical software in this way promotes collaboration and co...

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