Brightsurf Science News & Current Events

January 04, 2005
Sex habits of young women unchanged by morning after pill, UCSF study finds
Young, urban women showed no reduction in their use of contraceptives, nor any other changes in their sexual behavior when provided with easier access to the so-called

Study finds that adherence to diet, not type of diet, more important factor for losing weight
A comparison of four popular diet plans finds that the key to losing weight may not be which diet plan a person picks, but sticking with the plan that is chosen, according to a study in the January 5 issue of JAMA.

France's soaring Millau bridge seen from orbit
The Millau viaduct, newly inaugurated by President Jacques Chirac, is now the world's tallest road bridge.

Substance in urine predicts development of preeclampsia
A substance found in the urine of pregnant women can be measured to predict the later development of preeclampsia, according to research from the National Institute of Child Health and Human Development of the National Institutes of Health.

Depression tied to higher risk of heart disease death
Depression can double the risk of death or repeat heart disease in heart attack patients, according to two reviews of more than 40 studies that examine the link between depression and heart disease.

USC researchers find evidence that progesterone signaling influences ovarian cancer risk
A woman's risk of ovarian cancer rises significantly if she carries either of two previously unexamined variations in the gene that codes for the progesterone receptor.

Study pinpoints protein's role in heart failure prevention
Scientists at the University of North Carolina at Chapel Hill School of Medicine have shown that a protein in cardiac muscle cells may play a crucial role in heart failure prevention.

Other highlights in the January 5 JNCI
Other highlights in the January 5 JNCI include a study that finds a growth factor, VEGFR-3, prevents lymphangiogenesis in a mouse model and may inhibit tumor metastasis, an examination of progesterone signaling and the risk of ovarian cancer, a study of dietary zinc, COX-2 expression, and esophageal and tongue carcinogenesis in rats, and an analysis of bone marker levels and the negative outcomes of bone metastases.

Higher blood pressures among African Americans - genes not likely to be an explanation
Genetics may not be enough to explain the rates of high blood pressure in US African-American populations, according to new research published today in BMC Medicine.

News tips from the Journal of Neuroscience
This issue includes the following two articles: A sequence of transcription factors in cortical progenitor cells; Squirrelvision: Orientation tuning without columns.

Stem cell therapy for ailing hearts
Stem cells from umbilical cord blood effectively treated heart attacks in an animal study, report researchers at the University of South Florida and James A.

New findings on patient safety at children's hospitals
New research results may help children's hospitals improve patient safety and avoid preventable problems.

Study examines relationship of vitamin A pathway to breast tumor progression
Reduced expression of a protein that regulates the metabolism of vitamin A may contribute to tumor progression in breast cancer, according to a new study in the January 5 issue of the Journal of the National Cancer Institute. The study raises the possibility that this vitamin A pathway is a potential target for breast cancer prevention.

Debunking constipation myths
There are a lot of common myths about constipation treatment.

Study of hypoxia and new gene reveals early-stage action of p53 tumor suppressor gene
A team from the Abramson Cancer Center of the University of Pennsylvania discovered a gene related to p53 called Bnip3L that can also cause cell death.

Making emergency contraception readily available does not increase unprotected intercourse
Making it easier to obtain emergency contraception would not increase unprotected intercourse, lead to abandonment of regular contraception, or increase the risk of sexually transmitted infections (STIs), according to a study in the January 5 issue of JAMA.

Mothers in the workplace held to stricter standards, study suggests
Despite the gains women have made in the workplace, new research suggests one group of women employees still face negative stereotypes - mothers.

Human complexity and diversity spring from a surprisingly few (relatively speaking) genes
RNA editing, the process by which cells use their genetic code to manufacture proteins, can greatly increase the number of gene products generated from a single gene, says Stefan Maas of Lehigh University.

Environmental tobacco smoke linked to reading, math, logic and reasoning declines in children
A new Cincinnati Children's Hospital Medical Center study shows that exposure to environmental tobacco smoke, even at extremely low levels, is associated with decreases in certain cognitive skills, including reading, math, and logic and reasoning, in children and adolescents.

Homes need more protection against falls
Only a third of homes with a child age 6 or younger and windows on upper stories reported having window guards or locks to keep children from falling out, a new national survey finds.

Virginia Tech engineering professor honored for contributions to nonlinear dynamics
Ali Nayfeh, University Distinguished Professor in Engineering Science and Mechanics at Virginia Tech, will received the new Lyapunov Award established by the American Society of Mechanical Engineers Technical Committee on Multibody Systems and Nonlinear Dynamics of the Design Engineering Division at the ASME International Design Engineering Technical Conference.

Genetic polymorphisms, antidepressant use may be associated with altered tamoxifen activity
Interactions between certain genetic polymorphisms and antidepressants called selective serotonin reuptake inhibitors (SSRIs) may be associated with altered tamoxifen activity, according to a new study in the January 5 issue of the Journal of the National Cancer Institute.

URI oceanographer embarks on collaborative study of the northern Alaskan coastal system
URI Graduate School of Oceanography marine scientist Dr. Robert G.

'Old-fashioned' gonad capsule simple and effective for blocking radiation to testes from MDCT scan
Shielding the male gonads using a type of lead capsule previously only used in X-ray imaging also reduces indirect radiation to the testes during MDCT of the abdomen and pelvis, according to a new study by researchers from the University of Technology of Aachen in Germany.

Chamomile tea: New evidence supports health benefits
For centuries, people who've felt sick or stressed have tried drinking chamomile tea as a medicinal cure-all.

Ancient DNA helps solve the legend of giant eagles
Gigantic eagles swooping from the skies to rescue Frodo and Sam in the Lord of the Rings may not be just the stuff of legends and fairytales, according to research published in the journal PloS Biology. McMaster University anthropologist Michael Bunce has shed new light on the evolution of the extinct Haast's eagle, the giant bird that once ruled the skies over New Zealand.

Melanoma treatment lesson
For some years ago now biochemotherapy has replaced chemotherapy for the treatment of melanomas.

Children's Hospital at Vanderbilt ranked 8th in nation by 'Child' magazine
Less than one year after its move into a facility that is nationally recognized for its design, the Monroe Carell Jr.

The first detection of magnetic fields in the central stars of four planetary nebulae
For the first time, a team of astronomers has detected the presence of magnetic fields in the central stars of four planetary nebulae.

Good parent-doctor relationships may improve the advice parents receive
Parents whose children are at risk for child abuse and neglect may be reluctant to follow injury and illness prevention advice from pediatricians with whom they don't have a good working relationship, say researchers at the Johns Hopkins Children's Center, the Johns Burns University of Hawaii School of Medicine, and the Hawaii State Health Department.

Women need less morphine after hysterectomies with new treatment
Women recovering from hysterectomies require less morphine to combat pain and are able to recover their lung function more quickly when they receive a combination of two non-morphine-like or

Residual tumor cells are a barrier to targeted cancer therapeutics
Penn researchers report that after blocking the gene c-MYC, which is commonly overexpressed in human breast cancers, tumors still persist.

Being overweight has a significant effect on a child's quality of life
New research indicates that the more a child is overweight, the poorer quality of life that child will experience, though not to the degree reported in a previous study, according to an article in the January 5 issue of JAMA.

Scientific delegation into Sri Lanka's wave-ravaged areas
Philip Liu, Cornell University professor of civil and environmental engineering, will lead a delegation of American scientists from the National Science Foundation's Tsunami Research Group and the U.S.

Protein in urine may warn of preeclampsia risk in pregnant women
Researchers have discovered that diminished levels of an angiogenic protein associated with preeclampsia can be detected in the urine of pregnant women mid-way through pregnancy, a finding that could help pave the way for the development of a screening test for this potentially life-threatening disease.

Magnetic resonance imaging deconstructs brain's complex network
A team headed by scientists at Northwestern University, using functional magnetic resonance imaging (fMRI), has shown how to visualize the human brain as a massive, interacting, complex network governed by a few underlying dynamic principles.

National Academies advisory: Jan. 27 Science through Film
Join award-winning science and adventure producer David Clark as he leads a discussion on filmmaking in extreme environments.

Study reveals high infection rate in teens for virus linked to cervical cancer
More sexually active adolescent females than previously thought may be infected with a virus linked to cervical cancer and genital warts according to an Indiana University School of Medicine study.

Society of Hospital Medicine selects John Wiley & Sons, Inc. to publish The Hospitalist Newsletter
The Society of Hospital Medicine (SHM) has announced a new publishing agreement whereby global publisher John Wiley & Sons, Inc., will assume publication of the Society's newsletter, The Hospitalist, effective immediately.

Scientists prepare for Huygens descent on Titan
University of Arizona scientists, working on one of the most stunning robotic space missions ever attempted, head for Germany next week. is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to