Differences

Variation in women's X chromosomes may explain differences among individuals, between sexes

The first comprehensive survey of gene activity in the X chromosomes of women has revealed an unexpected level of variation among individuals, according to new work by researchers at the Duke University Institute for Genome Sciences & Policy (IGSP) and Pennsylvania State University. The results may have important implications for understanding the differences in traits among women and...

Big differences in duplicated DNA distinguish chimp and human genomes

A study comparing the genomes of both humans and chimpanzees has found that much of the genetic difference between the two species came about in events called segmental duplications, in which segments of genetic code are copied many times in the genome. The study appears as a companion article to the draft sequence of the chimpanzee genome published in the Sept. 1 issue of the journal Nature....

Comparison of Cocaine, Methamphetamine ‘Highs?Finds Differences

Don't call them the Dirt Doctors, or Sultans of Soil, they're just clever Lab guys. A team from Los Alamos National Laboratory has a paper in this week's Science Magazine with a new way to count bugs in dirt. Bacteria, that is, in the highly complex world beneath our feet. "Computational Improvements Reveal Great Bacterial Diversity and High Metal Toxicity in Soil," by Jason Gans, Murray W...

Identical twins may have more differences than meet the eye

Identical twins lose some fundamental similarities as they grow older, a new study reports. Researchers report in this week's Proceedings of the National Academy of Sciences that these differences may stem from changes in the epigeno...

Study outlines genetic differences between potential pandemic influenza strains

An analysis of H5N1 influenza samples in Southeast Asia shows not only how the two strains that have caused human disease are related but also that they belong to two different, distinct genetic subgroups. Researchers from the Centers for Disease Control and Prevention report their findings today at the International Conference on Emerging Infectious Diseases. "As the virus continues its...

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Life anticipation differences identified

According to researchers, high blood pressure is a major factor accounting for differences in life expectancy between blacks and whites. It's well known that black people live, on average, six years less than white people. And those who did not complete //high school are at a similar disadvantage compared to high school graduates. Now, for the first time, a study has identified the major health f...

Genetic differences found between Male and Female brains

As mounting research strives to understand how much of who we are is controlled by our genes, research out of UCLA offers even more understanding of what genes can do.// New findings suggest there are 54 genes that explain the different organization between male and female brains.Researchers offer evidence in their report that sexual identity is hard-wired and is determined before a person is e...

Differences in brain pattern among liars and cheats in comparison to honest people

Neuroscientists have now identified different patterns of brain organization between normal people and people who cheat or lie constantly. Liars have been found to have less gray matter// and more white matter in their prefrontal cortex and certain abnormalities have been revealed in area that controls higher thinking. Gray matter consists of the cells that do the thinking (is also held...

Functional Differences In Estrogen Receptor Could Be A Therapeutic Target

Differences in a newly uncovered estrogen receptor could turn out to be an important therapeutic target besides playing a vital role in signaling //other target tissues like uterus and prostate tissues. These new findings could significantly advance the understanding of the effects of estrogen in breast cancer and point the way towards new and potentially more effective treatments of...

Racial differences show difference in blood sugar control too!!

According to researchers from Wake Forest University School of Medicine and their colleagues, an investigation that combines 11 different studies reveals that black diabetics// have poorer control of blood sugar than whites. "This lower level of control may partly explain why blacks have disproportionately higher rates of death and complications from diabetes," said Julienne Kirk, P...

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Large Geographic Differences in EpiPen Prescriptions in the U.S., From the Journal of Allergy and Clinical Immunology

MILWAUKEE, July 11, 2007 /PRNewswire/ -- A new study suggestsstrong variation in the occurrence of anaphylaxis between thenorthern and southern U.S. Anaphylaxis is a severe allergicreaction that can be fatal without treatment with epinephrine. Thestriking north-south differences in EpiPen prescribing, a marker ofanaphylaxis risk, currently are without explanation. Theinvestigators hypoth...