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Tag: "differences" at biology news

One species, many genomes

... favorite of many plant biologists. Which detailed differences distinguish the genomes of strains from the polar ...results were surprising: The extent of the genetic differences far exceeds the expectations for such a streamlined genome, as the scientists write in this week’s...

Identified main genetic variants involved in response to HIV

...have taken place in a large scale study on genetic differences between patients infected by HIV, and is the first study of this kind in the field of infectious disease. Catalan participants have been coordinated by Javier Martínez-Picado, ICREA research professor in the Foundation irsiCaixa of Hospital Germans T...

Modeling the restless brain

...and behavioral performance and ask questions about differences in the brains of individual persons. Sporns sa... shaped by anatomy," Sporns said, "then individual differences in the way people think and what they think about could be rooted in differences in the way their br...

Bigger horns equal better genes

...have effects that accumulate over time. Therefore, differences in genetic quality become more apparent as an organism ages. Coltman noted that his study, which incorporated genetic samples from more than 150 ibex, took into account the fact that environmental factors also play a role in determining ibex horn...

Stroke study sheds light on left-right brain divide

...dy led by the University of Exeter has highlighted differences in the ability of people to perform basic tasks, depending on whether the left or right sides of their brains have been damaged by a stroke. The research identified the role of the right side of the brain in noticing and correcting errors. The resea...

Undergraduate research shows leaderless honeybee organizing

...Schneider said. “It’s interesting that these major differences can result in the same emergent social properties. It may tell us something about ourselves.” ...

Genetic factors are linked to fever following smallpox vaccination

... after vaccination may have genetically determined differences in their immune responses compared to those who do not. They studied 346 individuals who had participated in previous smallpox vaccination trials, 94 of whom developed fevers after vaccination. The authors analyzed 19 gene clusters (called haplotype...

Nurtured chimps rake it in

...ts and children,” The authors conclude that the differences in performance between the three groups are directly attributable to the significant effect of level of enculturation. They add that “enculturated chimpanzees may be better at learning within a highly social, interactive context because they have he...

Plants recognize their siblings, biologists discover

...ily they don’t increase their root growth. Because differences between groups of strangers and groups of siblings only occurred when they shared a pot, the root interactions may provide a cue for kin recognition.” Though they lack cognition and memory, the study shows plants are capable of complex social beha...

Herpes virus hijacks DNA repair process

...," Tarakanova notes. "Many of us thought that such differences might be triggering the DNA damage response." Working in the laboratory of Herbert W. "Skip" Virgin, M.D., Ph.D., Edward Mallinckrodt Professor and head of the Department of Pathology and Immunology, Tarakanova found that murine herpes virus, rather...

Marine phytoplankton changes form to protect itself from different predators

...in biomedical research,” he added. “Some of these differences are small, but they can have a large effect.” ...

Potent possibilities for parasite attack

..., cutaneous form of the disease. Despite the major differences in disease type, only 200 out of more than 8000 ge...es: 'death' of genes seems to be a major force for differences between the parasite genomes. Some genes, however, are evolving rapidly, leading the team to suspect...

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

.... The team aims to discover which of these genetic differences could explain why one type of mosquito transmits dengue and yellow fevers, while the other transmits malaria. Beyond the present descriptive work, functional studies will be needed to clarify exactly how this happens. “This study made us real...

Extra-aggressive form of idiopathic pulmonary fibrosis identified

... Better identification and understanding of these differences may provide insights into the pathogenesis of IPF and assist in the development of therapeutic interventions for this devastating lung disease....

Hearts of male and female rainbow trout are different

...There is a growing appreciation of significant sex differences in cardiac characteristics and function in adult h...close the gender gap in fishes, and finds that sex differences in cardiac performance and metabolism exist in rainbow trout. These differences occur at a young age...

'Personality-gene' makes songbirds curious

...xious type, or a fearless person - such individual differences in personality could be partly due to the genes yo...tter-related genes are associated with personality differences among humans. Research from the last decade suggested a promising link between the Drd4-gene and the...

'Insulator' helps silence genes in dormant herpes virus

...ou says. "Learning more about the similarities and differences in these chromatin structures may help finding ways to develop therapies that can target the virus and not the host." ...

A frown or a smile? Children with autism can't discern

...eveloping group, the researchers found significant differences in activity in a part of the brain called the ventrolateral prefrontal cortex (VLPFC), which is known to play a role in evaluating emotions. While these children looked at the direct-gaze faces, the VLPFC became active; with the averted-gaze pictures...

Genetic roots of bipolar disorder revealed by first genome-wide study of illness

...elop additional medication options that take these differences into account. One of the genes the researchers correlated with the disorder, DGKH, is active in a biochemical pathway through which lithium is thought to exert its therapeutic effects. The gene produces an enzyme (diacylglycerol kinase eta) that ...

Researchers publish first marsupial genome sequence

...of the human genome. It sheds light on the genetic differences between placental mammals, such as humans, mice an... the genetic factors that may underlie many of the differences between the two types of mammals. Interestingly, about one-fifth of the key functional elements ...

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