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Researchers at Intermountain Medical Center in Salt Lake City believe that they have made a breakthrough connection between atrial fibrillation, a fairly common heart rhythm disorder, and Alzheimer's disease, the leading form of dementia among Americans.

In a study presented Friday, May 15, at "Heart Rhythm 2009," the annual scientific sessions of the Heart Rhythm Society in Boston, researchers unveiled findings from the study of more than 37,000 patients that showed a strong relationship between atrial fibrillation and the development of Alzheimer's disease.

For many years, it has been known that aspirin is beneficial to patients suffering heart attacks and near-heart attacks. But which of the many different types of aspirin is likely to help the most?

Renal diseases shall be diagnosed earlier and treated more successfully in the future. Towards this aim, researchers from nine European countries*, coordinated by the Max Delbrück Center for Molecular Medicine (MDC) Berlin-Buch, Germany, have been working for the past four-and-a half years to create a three-dimensional virtual "Kidney Atlas". It incorporates the latest research findings on the development and diseases of the kidney. The Kidney Atlas was part of the European Renal Genome Project (EuReGene), which the European Union (EU) funded with more than 10 million euros.

The recent H1N1 influenza epidemic has raised many questions about how animal viruses move to human populations. One potential route is through veterinarians, who, according to a new report by University of Iowa College of Public Health researchers, are at markedly increased risk of infection with zoonotic pathogens -- the viruses and bacteria that can infect both animals and humans.

A family-based prevention program designed to help adolescents avoid substance use and other risky behavior proved especially effective for a group of young teens with a genetic risk factor contributing toward such behavior, according to a new study by researchers at the University of Georgia. The National Institute on Alcohol Abuse and Alcoholism (NIAAA) and the National Institute on Drug Abuse (NIDA), components of the National Institutes of Health, supported the study, which appears in the May/June issue of Child Development.

BOSTON – A new study suggests for the first time that cytomegalovirus (CMV), a common viral infection affecting between 60 and 99 percent of adults worldwide, is a cause of high blood pressure, a leading risk factor for heart disease, stroke and kidney disease.

Led by researchers at Beth Israel Deaconess Medical Center (BIDMC) and published in the May 15, 2009 issue of PLoS Pathogens, the findings further demonstrate that, when coupled with other risk factors for heart disease, the virus can lead to the development of atherosclerosis, or hardening of the arteries.

Researchers at the University of California, San Diego have discovered that a complex network of interactions between drugs and the proteins with which they bind can explain adverse drug effects. Their findings suggest that adverse drug effects might be minimized by using single or multiple drug therapies in order to fine-tune multiple off-target interactions.

Avian influenza viruses do not thrive in humans because the temperature inside a person's nose is too low, according to research published today in the journal PLoS Pathogens. The authors of the study, from Imperial College London and the University of North Carolina, say this may be one of the reasons why bird flu viruses do not cause pandemics in humans easily.

There are 16 subtypes of avian influenza and some can mutate into forms that can infect humans, by swapping proteins on their surface with proteins from human influenza viruses.

Researchers from the Peninsula Medical School and the University of Bristol, using data from the Avon Longitudinal Study of Parents and Children and the Exeter Family Study of Childhood Health, have identified a common genetic variant that explains why some women may find it more difficult to quit smoking during pregnancy.

Their paper, "A common genetic variant in 15q24 nicotinic acetylcholine receptor gene cluster (CHRNA5-CHRNA3-CHRNB4) is associated with a reduced ability of women to quit smoking in pregnancy", is published in Human Molecular Genetics.

Washington, DC – Mothers who share cancer genetic test results with their children are more satisfied with their decision than those who decide not to tell, according to a new study by researchers at the Lombardi Comprehensive Cancer Center at Georgetown University Medical Center. The study also shows, for the first time, what role fathers play in disclosing mother's test results. These findings will be presented at the 45th Annual Meeting of the American Society of Clinical Oncology (ASCO) in Orlando May 29 - June 2.

Four risk factors that help predict how long men may survive with metastatic prostate cancer could help doctors choose more effective treatments, according to a study led by researchers in the Duke Comprehensive Cancer Center.

ORLANDO (May 14, 2009)—If you learned that you were at high risk of cancer because you carry the hereditary BRCA1/2 gene mutation, would you tell your children? A recent study at Fox Chase Cancer Center not only considered that question, but also took it to the next level and studied the parent perceptions of the impact of such a decision on children. The study will be presented at the 2009 Annual Meeting of the American Society of Clinical Oncology. BRCA1/2 are hereditary gene mutations that indicate an increased risk of developing breast cancer.

ORLANDO (May 14, 2009)—Working with a population of individuals at risk for gastrointestinal cancers, researchers at Fox Chase Cancer Center have learned that many people misjudge their actual degree of cancer risk and, therefore, their true need for prevention support. Strategies for accurately assessing cancer risk are critical for appropriately targeting educational, counseling, and diagnostic resources to prevent cancer in as many individuals as possible, the investigators say.

ORLANDO (May 14, 2009)—Researchers at Fox Chase Cancer Center uncovered a genetic pattern that may help predict how gastrointestinal stromal tumor (GIST) patients respond to the targeted therapy imatinib mesylate (Gleevec). Moreover, their findings point to genes that could be suppressed in order to make these tumors respond more readily to imatinib.

New Rochelle, NY, May 14, 2009—The American Civil Liberties Union action in filing a lawsuit yesterday against Myriad Genetics is going to lead to one of the most important legal battles in the history of biotechnology, asserts Genetic Engineering & Biotechnology News (GEN). (www.genengnews.com) The ACLU charged that the patenting of two human genes linked to breast and ovarian cancer will inhibit medical research. The organization also claims that the patents are invalid and unconstitutional.