Tag: "variations" at biology news
Clones on task serve greater good, evolutionary study shows
...ine and soil. But even in that stable home, little variations
occur. One plant in the A family might get a few more minutes of sunshine a day, another might get more water, but they pretty much grow up to be just like their parent.The identical offspring of Plant B grow up the same way, except more of the plant...
deCODE discovers cause of major subtype of glaucoma
...n report the discovery of two common single letter variations
(SNPs) in the sequence of the human genome that appear to account for virtually all cases of a major subtype of glaucoma. The SNPs are located in the LOXL1 gene on chromosome 15, and confer respectively 26-fold and 8-fold increases in risk of exfolia...
OHSU turns mouse into factory for human liver cells
...develop a library of human liver cells from common variations
of human drug metabolism. "Different humans metabolize drugs differently. So we want to create a library of cells from different humans to capture some of that variability," Grompe said....
Genetic variation helps to understand predisposition to schizophrenia
...in part due to genetic variations, Law says. These variations
are not simple to understand because they dont dir...ally found in an Icelandic population that genetic variations
in a DNA sequence close to a gene that produces a protein called Neuregulin 1 were associated with s...
Success or failure of antidepressant citalopram predicted by gene variation
...AR*D. The genetic material included the occasional variations
that occur from person to person. Comparing the DN...opram occurred in people who carried the favorable variations
in both copies of both of the genes. People with fewer of the favorable variations
didnt have as hig...
Altering a protein makes mice less fearful
... UI study raises the possibility that mutations or variations
in the gene might be associated with heritability of, or predisposition for, neuroticisim, phobias and other anxiety traits in humans. The UI team plans to determine the specific sites of action of ASIC1a in the brain, and focus on understanding th...
New grants bolster efforts to generate faster and cheaper tools for DNA sequencing
... This would include information such as structural variations
and aberrations associated with cancer genomes. The resulting data could be linked to information produced by other emerging sequencing platforms....
Research teams uncover risk genes for multiple sclerosis
... sclerosis (MS), while also uncovering new genetic variations
in the disease and suggesting a possible link betw...NA sequence that represent the most common genetic variations
between individuals. The team looked for variations
that were more commonly inherited by people with...
Strains of laboratory mice more varied than previously thought
...ought. Where previously there were only 140,000 variations
in DNA sequence described, it turns out there are 8.3 million. Moreover, the study found that the pedigrees of the 15 mouse strains studied are not what they were previously assumed to be. It appears they differ from each other to a far greater deg...
After a decades-long search, scientists identify new genetic risk factors for multiple sclerosis
...tide polymorphisms (SNPs), which are single-letter variations
in a gene's DNA code. Published simultaneously today in the New England Journal of Medicine and Nature Genetics, the studies demonstrate an association between MS and SNPs in two genes that encode interleukin receptors, proteins that serve as antenn...
Risk genes for multiple sclerosis uncovered
...arge-scale genomic study has uncovered new genetic variations
associated with multiple sclerosis (MS), findings ...NA sequence that represent the most common genetic variations
between individuals, and looked for variations
that were more commonly inherited by people with MS c...
New research identifies anti-viral protein that may predict who might be at risk to develop lupus
... the other factors, including the relevant genetic variations
that determine why one family member develops the disease while another doesnt. The hope is that we may be able to use interferon-alpha levels as a measurement to predict who might be at risk to develop this disease, says Dr. Crow, who is the immed...
How to structure a complex body plan
...to variable environmental challenges. Such plastic variations
are also documented in reef corals. Coral colonies are made of multiple genetically identical physiologically integrated modules (polyps). Like other sedentary colonial marine organisms, corals may generate extremely broad structures, changing their ...
Identified main genetic variants involved in response to HIV
...and bioinformatics technologies, analysing 550,000 variations
of the complete human genome in 486 patients, most...simple nucleotide polymorphisms (SNPs), are single variations
affecting only one nucleotide or base of the genomic sequence. Despite humans sharing 99.9% of the g...
First genome-wide study of infectious disease opens new avenues for HIV treatment, vaccines
...e-wide association studies aim to identify genetic variations
among people that can be tied to variations
in disease susceptibility. Recent genome-wide association studies have found genetic markers linked ...
Probing biology's dark matter
...rent microbial worlds. One approach is to look for variations
in the sequence of a specific gene found in all microorganisms; another is a complete inventory of all the pooled genes in a microbial community. These types of studies, however, yield few insights into the character of individual members of a microb...
Charting ever-changing genomes
...t trial run, the scientists catalogued the genetic variations
in 23 strains of the mustard weed Arabidopsis thaliana that were collected from the wild all over the world. Our study represents one of the first whole genome scans for levels and patterns of genetic variation within a species, says Joseph R. Ecke...
Gene identified for Crohn's disease in children
...ell out a patients genotypethe specific pattern of variations
among an individuals 30,000 genes. Established in the summer of 2006, the center is taking on one of the largest genotyping projects in the world, and is the largest one dedicated to genetic analysis of childhood diseases. This study is among the f...
UK scientists lift lid on genetics of coronary artery disease
...st studies ever undertaken to identify the genetic variations
that predispose people to or protect them from major diseases. It looked at bipolar disorder, Crohn's disease, coronary heart disease, hypertension, rheumatoid arthritis and type 1 and type 2 diabetes. Today, the Wellcome Trust has announced a furt...
New research proves single origin of humans in Africa
...mans theory by combining studies of global genetic variations
in humans with skull measurements across the world. The research, at the University of Cambridge and funded by the Biotechnology and Biological Sciences Research Council (BBSRC), represents a final blow for supporters of a multiple origins of humans ...
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