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Sexual Orientation Revealed By Pupil Dilation
Date: Aug-07-2012There is a popular belief that sexual orientation can be revealed by pupil dilation to attractive people, yet until now there was no scientific evidence. For the first time, researchers at Cornell University used a specialized infrared lens to measure pupillary changes to participants watching erotic videos. Pupils were highly telling: they widened most to videos of people who participants found attractive, thereby revealing where they were on the sexual spectrum from heterosexual to homosexual. The findings were published in the scientific journal PLoS ONE*...
Researchers Look At The Spread Of Dysentery From Europe To Industrializing Countries
Date: Aug-07-2012Researchers have found that a bacterium that emerged centuries ago in Europe has now been spreading globally into countries undergoing rapid development and industrialization. Unlike other diarrheal diseases, this one is unlikely to be resolved by providing access to clean water...
Development Of Better Cancer Therapies Likely Following Discovery Of New Mechanism Behind Resistance To Treatment
Date: Aug-07-2012Developing resistance to chemotherapy is a nearly universal, ultimately lethal consequence for cancer patients with solid tumors - such as those of the breast, prostate, lung and colon - that have metastasized, or spread, throughout the body. A team of scientists led by Fred Hutchinson Cancer Research Center has discovered a key factor that drives this drug resistance - information that ultimately may be used to improve the effectiveness of therapy and buy precious time for patients with advanced cancer. They describe their findings online in advance of print publication in Nature Medicine...
In The Battle Against Malaria, Gene Sequencing Reveals Challenges, Opportunities
Date: Aug-07-2012Genetic variability revealed in malaria genomes newly sequenced by two multi-national research teams points to new challenges in efforts to eradicate the parasite, but also offers a clearer and more detailed picture of its genetic composition, providing an initial roadmap in the development of pharmaceuticals and vaccines to combat malaria. The research appears in two studies published in the latest issue of the journal Nature Genetics. They focus on Plasmodium vivax (P...
Improving Relationships, Mental And Physical Health By Not Telling Lies
Date: Aug-07-2012Telling the truth when tempted to lie can significantly improve a person's mental and physical health, according to a "Science of Honesty" study presented at the American Psychological Association's 120th Annual Convention. "Recent evidence indicates that Americans average about 11 lies per week. We wanted to find out if living more honestly can actually cause better health," said lead author Anita E. Kelly, PhD, professor of psychology at the University of Notre Dame...
More Accurate Drug Testing In Heterogeneous ER+ Breast Cancer Models
Date: Aug-07-2012Cell cultures are homogeneous. Human tumors are not. A University of Colorado Cancer Center study recently published in the journal Breast Cancer Research and Treatment reports the development of human-derived estrogen-positive (ER+) breast cancer models that retain their heterogeneity, allowing researchers to more accurately test drugs for this disease. "Breast cancer is never black or white...
Risk For Type 2 Diabetes May Be Reduced By Weight Training
Date: Aug-07-2012Men who do weight training regularly - for example, for 30 minutes per day, five days per week - may be able to reduce their risk of type 2 diabetes by up to 34%, according to a new study by Harvard School of Public Health (HSPH) and University of Southern Denmark researchers. And if they combine weight training and aerobic exercise, such as brisk walking or running, they may be able to reduce their risk even further - up to 59%. This is the first study to examine the role of weight training in the prevention of type 2 diabetes...
Adults With Tourette Syndrome Can Be Taught Strategies To Manage Tics
Date: Aug-07-2012Specially designed comprehensive behavioral therapy is more effective than sessions offering patient support and education in helping adults with Tourette syndrome manage their tics - sudden, repetitive motions or vocalizations - according to a study in the August issue of Archives of General Psychiatry. The findings come from a team of investigators at Massachusetts General Hospital (MGH)/Harvard Medical School, Yale University, the University of Texas Health Science Center at San Antonio, and other institutions...
Blood Biomarker Discovered For Lou Gehrig's Disease, Could Lead To New Treatments
Date: Aug-07-2012Researchers from Brigham and Women's Hospital (BWH) are the first to discover that changes in monocytes (a type of white blood cell) are a biomarker for amyotrophic lateral sclerosis (ALS), or Lou Gehrig's disease. This finding also brings the medical community a step closer toward a new treatment for the debilitating neurological disease that affects approximately 30,000 Americans. The study was published online in The Journal of Clinical Investigation on August 6, 2012...
The Genetic Map Of The Jewish Diasporas Defined By New Genetic Study
Date: Aug-07-2012A new genetic analysis focusing on Jews from North Africa has provided an overall genetic map of the Jewish Diasporas. The findings support the historical record of Middle Eastern Jews settling in North Africa during Classical Antiquity, proselytizing and marrying local populations, and, in the process, forming distinct populations that stayed largely intact for more than 2,000 years. The study, led by researchers at Albert Einstein College of Medicine of Yeshiva University, was published online in the Proceedings of the National Academy of Sciences...
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