Tag: "shown" at biology news
Facial attraction -- choice of sexual partner shaped the human face
...evolution, as studies on our fossil ancestors have shown
our choice of sexual partner has shaped the human face. The findings appear in the online, open-access journal PLoS ONE. The face holds the secret to determining the sex of our ancestors and what makes us attractive to the opposite sex for reproduc...
Climate change isolates Rocky Mountain butterflies
... and become more independent of each otheras we've shown
the Parnassius is becoming in certain areas in the Canadian Rockiesthe local extinction rate of small populations will increase," he added....
Interaction of just 2 genes governs coloration patterns in mice
... owls, herons, and hawks." Previous research has shown
that such predators, all of which hunt by sight, will preferentially catch darker mice on the white sand beaches, providing a powerful opportunity for natural selection to evolve increased camouflage. Through a detailed genomic analysis, Hoekstra, ...
Doernbecher Children's Hospital scientist earns coveted Javits award
...it signals in the brain. Dr.Back and his team have shown
that during human brain development, thereis a critical time period when the cells (oligos or oligodendrocyteprogenitors) required to make myelin are easily killed by low blood flowto the brain. The loss of these oligo-cells results in failure to mak...
Gene regulation, not just genes, is what sets humans apart
...but the coding regions of neural-related genes had shown
very little sign of positive selection in these studies. Yet, as far back as 1975 when Mary-Claire King and Allan Wilson first said humans and chimps were 99 percent the same genetically, they had offered the suggestion that greater differences might...
Risk of common vaginal infection linked to preterm birth appears higher for blacks
...ing the risk for preterm birth, other studies have shown
that women who have BV also are more likely to get herpes and other sexually transmitted diseases, including HIV, said Dr. Simhan, a maternal-fetal medicine specialist at the Magee-Womens Hospital of the University of Pittsburgh Medical Center. Fo...
Green tea boosts production of detox enzymes, rendering cancerous chemicals harmless
...rcinogens to non-toxic chemicals, and studies have shown
a correlation between deficient expression of thes...of interest to researchers given studies that have shown
populations in which it is often consumed, such as the Chinese and Japanese, generally have lower ra...
Does the desire to consume alcohol and tobacco come from our genetic makeup?
...th the environment. Adoption and twin studies have shown
that the use of these substances is likely to be inherited. Such studies have provided evidence that ones sex can influence the genetic factors for alcohol and tobacco use. In an attempt to find the genomic determinants underlying alcohol and toba...
New, more direct pathways from outside the cell-to-cell nuclei discovered
...eries that were based on this protozoan were later shown
to be almost global in their occurrence in the biological world." Therefore, these direct pathways may operate in other organisms as well. The discovery of the pathways in the protozoan resulted from an observation made by Gavin about 10 years ago ...
ESF EURYI award winner aims to stop cancer cells reading their own DNA
...ons and not just cancer. Dekkers work has already shown
great promise, and she has been able to predict what effect certain antitumor drugs would have on the basis of her molecular insights, confirming her hypotheses in yeast cells. Indeed the work with antitumor drugs is, as far as I know, the first expe...
Gilbert Foundation and American Fed for Aging Research award grants on Alzheimer's disease
...applicable to more than 25 diseases that have been shown
to be associated with protein misfolding and aggregation, including Parkinsons disease and type II diabetes. Grace Stutzmann, Ph.D., Assistant Professor, Rosalind Franklin University: "Contributions of early calcium signaling dysregulations to Al...
Evolution is driven by gene regulation
...ion factors mediating gene regulation, we have now shown
that we can functionally map these interactions and identify the specific targeted promoters, said Snyder. We were startled to find that even the closely related species of yeast had extensively differing patterns of regulation. In this study, the ...
Research shows skeleton to be endocrine organ
...y important novel function of the skeleton. Theyve shown
for the first time that the skeleton is an endocri... now. Karsenty and his colleagues had previously shown
that leptin, a hormone released by fat cells, acts upon and ultimately controls bone mass. They reas...
Proteaceae spread by continental drift and transoceanic dispersal
Using DNA sequence data, botanists have shown
that the large southern hemisphere plant family Pr...study published in the Journal of Biogeography has shown
that, while this is the case for some of these plants, others are far too recent to have lived at th...
Sugar and spice and everything nice: Health differences in newborn girls and boys
...e Newborn Heart Clinical studies in children have shown
that girls are at higher risk for death than boys ...e organs from female donors. Clinical studies have shown
that, compared to males receiving male livers, males receiving female livers experience a higher inc...
Grapes, soy and kudzu blunt some menopausal side effects
...eplacement therapy (HRT). Since then, studies have shown
that extensive use of HRT is associated with signi...ds found in plants dietary polyphenols have been shown
to have some beneficial effects similar to HRT but without the appreciable adverse effects. Grape, s...
Preclinical study links gene to brain aneurysm formation
... carry blood to the brain. Previous studies have shown
that variants of the NOS-3 gene are markers for vascular disease. The gene also plays an important role in remodeling of blood vessels in response to changes in blood flow. When a vessel experiences increased blood flow, it attempts to reduce the s...
Taking a supplement of glycine helps prevent degenerative diseases such as arthrosis or osteoporosis
...al thesis carried out at the CMI and the UGR has shown
that the capacity of the metabolism to synthesise glycine is very limited. The conclusion of this study is that glycine, administered in daily doses of 10 grams divided into two doses of 5 grams "one in the morning and one at night" leads to a genera...
Link identified between Alzheimer's disease and glaucoma
UK scientists have shown
for the first time that key proteins involved in A...almology and funded by the Wellcome Trust has also shown
that novel drugs being trialled for Alzheimer's disease which target this protein may be used to tre...
Research team enlightens the reasons for severe blindness
... the protein transport within the optical cell: as shown
by electro-microscopic pictures, within the optical cell described as the photoreceptor, lebercilin binds the most to the so-called cilium, the connection point between the interior and exterior segments of the photoreceptor. Through this molecular t...
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