Tag: "similarity" at biology news
Study shows ulcerative colitis patients achieve remission with probiotic composition VSL#3
... Reserve University School of Medicine, "Given the similarity
between pouchitis and ulcerative colitis, probiotic therapy could also prove useful in the maintenance treatment of this condition." "When looking at studies of probiotics in treating certain GI disorders, it's important to note that different probio...
Virus researchers close in on the secret life of DNA
...by modifying the protein's active site. Noting the similarity
of E3L's active site to a site on a protein known as ADAR1 that has been proven to bind to Z-DNA, the researchers first replaced the active site in E3L with the ADAR1 site and found that viruses containing this modified protein were still lethal. Nex...
Study sheds light on Chlamydial pathogens
...earch (Vol. 31, No. 8, pp. 2134-2147), found close similarity
among the DNA sequences of C. caviae and three other previously-sequenced species of Chlamydiae pathogens, which attack widely different hosts and cause human diseases ranging from infectious blindness to pneumonia and possibly heart disease. Acco...
Researchers find possible link between pre-natal alcohol consumption and diabetes
...xposed rats had similar basal levels of AVP. This similarity
of AVP levels continued throughout the infusion of 0.9 percent NaCl. Although the basal plasma AVP levels were similar between PE and NPE-exposed rats, the basal plasma osmolality was increased in the PE rats, suggesting a reduced sensitivity of the...
New species of earliest-known salamanders found in China
...w cryptobranchid shows extraordinary morphological similarity
to its living relatives, noted the study authors. Indeed, exant cryptobranchid salamanders can be regarded as living fossils whose structures have remained little changed for more than 160 million years. What this tells us, Shubin said, is that the m...
Alcohol abuse may increase susceptibility to HIV infection
...vely used in the study of HIV disease. Due to its similarity
to HIV infection, [this] model [could] be extremely important in addressing and understanding the clinically relevant issues concerning the susceptibility of alcoholics to acquiring HIV infection and the effect of alcohol on the rate of HIV-disease p...
New, more effective option for gene data mining identified
...L clustering method, which uses a novel measure of similarity
not previously used for gene expression analysis, ...stical measure using the chi-square test to assess similarity
between the clusters obtain by the different methods. Acharya notes "Even simple visual inspectio...
Mechanism controls movement of cell structures
...direct humans counterparts known as homologs. This similarity
makes yeast a good experimental organism because almost everything researchers learn about yeast cells is likely to be applicable to human cells, too. In addition, manipulating and analyzing yeast genes is much easier and faster than working with hig...
Data presented on first cloned, double knock-out miniature swine
...ate for an alternative organ source because of the similarity
between human and pig organs and the relative ease of breeding. However, the massive rejection response mounted by the human immune system has been a major hurdle in this research. A key player in this rejection process is the gene called a-1,3-...
UCSF study of ancient fly gene offers insights into male fertility
...distant relative of the fly boule gene, based on a similarity
in the genes' protein sequences and gene expression patterns. This finding was significant in itself, as it illuminated an ancient genetic lineage tracing back through the mouse to the fly, which evolved 600 million years ago. But nothing was known a...
Powerful technologies probe innate immunity
... an infectious organism. Due to the high degree of similarity
in the innate immune systems in all animals, the scientists can employ mice to quickly determine which gene groups deserve further exploration. Both the human and mouse genes, for example, encode proteins involved in inflammation, a generic first res...
Evidence for orangutan culture
... that habitat did not have a significant impact on similarity
of these behaviors," said van Schaik. "And our con...howing that proximate sites showed more behavioral similarity
than distant sites. This finding strongly suggested that we were observing a process of innovation a...
Purdue research hints that birds could spread Ebola virus
...rds. As scientists had known previously of genetic similarity
among the viruses, this discovery makes a common e... were inwardly similar, and now we see their outer similarity
as well," said Sanders, associate professor of biological sciences in Purdue's School of Science. "W...
West Nile Virus capsid protein causes encephalitic inflammation by triggering cell suicide
...began studying WNV-Cp when they noticed a striking similarity
between the gene that encodes for it and that of an HIV regulatory protein. "We hope to extend the lessons they have learned in trying to develop therapeutics for HIV in fighting West Nile." Said Weiner. "In addition to the possibility of creating a...
First clinical trial of intravenous rViscumin under way in Germany and France
...combinant E.coli-derived protein with a structural similarity
to mistletoe lectin I a component of natural mist...any, was told that although there was a structural similarity
between the natural product and rViscumin, that was where the similarity
ended. "The content of mis...
To thin or not to thin
...ldlife. Thinning may lead to increased similarity
of some lichen communities on shrubs between young and old-growth stands. But in some cases, thinning apparently led to the loss of old shrub stems, resulting in these thinned stands supporting fewer shrub epiphytes than did comparable unthinned stan...
Estrogen linked to more efficient regulation of a woman's heartbeat
...arguments for both sides of the issue. There is a similarity
in the sexes regarding the mean and standard deviation of the R-R interval portion of electrocardiogram (intervals between positive deflection of the QRS complex, which involves the depolarization of ventricular cardiac cells). On the other hand, wo...
Cystic fibrosis gene mutations missing from some cases
... really have another, unknown disease, despite the similarity
of symptoms, the researchers suggest. Loss of the function of a protein called CFTR was identified more than a decade ago as the cause of CF, a life-shortening disease characterized by frequent, severe lung infections. In less severe cases, known as...
Study to determine if infidelity among birds an attempt to avoid inbreeding, diversify genes
...birds and mammals is negatively related to genetic similarity
of parents. As such, some species of birds are sim... Genetic studies indicate that the rate of genetic similarity
among the mated pairs of birds with extra-pair fertilizations is more closely related than pairs wit...
Sex and genetics: Why birds are unfaithful to their partners
...pete for fertilization of the eggs. If the genetic similarity
with the female (or the egg) reduces the competitiveness of sperm, then an extra-pair male might have a much higher chance of fertilizing an egg when pair members are closely related....
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