Brightsurf Science News & Current Events

February 27, 2002
Breaking down the walls of immunological ignorance
T cells that respond to an antigen challenge in vitro but fail to do so in a living animal are said to be in a state of immunological ignorance.

Physics tip sheet #2 - February 27, 2002
Highlights of this issue include reports on guiding atoms with hologram-generated light, fractal nanopore networks and the evolution of physics

A new strategy for treating psoriasis
Dexamethasone and other steroids used for treating psoriatic skin inflammation probably act in part by inducing I-kB, thus preventing NF-kB from reaching the nucleus and trans-activating its many target genes, including those involved in T cell-dependent inflammation.

Genetic link to endometriosis - unique Icelandic study provides further proof
A unique study by Icelandic scientists is the first to show that endometriosis can be inherited not just from the immediate family but is linked to distant relatives as well.

Oral diabetes drug shows promise in preventing miscarriage in common infertility disorder
The anti-diabetes drug metformin appears to reduce the likelihood of early miscarriage in women with PCOS, a common form of female infertility, according to a study funded by the National Institute of Child Health and Human Development (NICHD).

Human and fly studies tally good and bad mutations, stress ongoing role of natural selection
Chicago researchers show that natural selection plays a much larger role in molecular evolution than suspected, challenging the dominant

Terra measures sea surface temperature with unprecedented detail
A new sensor orbiting the Earth aboard NASA's Terra satellite is now collecting the most detailed measurements ever made of the sea's surface temperature every day all over the globe.

Silent earthquake in Hawaii offers clues to early detection of catastrophic tsunamis
A slow-moving earthquake recently observed on Hawaii`s Kilauea Volcano could become a model for predicting catastrophic tsunamis in the Pacific, according to a new study by geophysicists from Stanford and the U.S.

Muscle gene influences fat storage in mice; may be target to prevent or treat obesity and diabetes
For mice genetically altered to get fat, knocking out a particular gene keeps them both leaner and healthier, Johns Hopkins School of Medicine scientists report in the March 1 issue of the Journal of Clinical Investigation.

Researchers discover mechanism of plant resistance to pathogens
Plants have effective mechanisms aimed at protecting themselves against bacteria and fungi.

Maryland's 1990 'Saturday night special' ban reduced gun homicides in the state, new study shows
A new study from the Johns Hopkins Center for Injury Research and Policy at the Johns Hopkins Bloomberg School of Public Health says the Maryland law banning

Smoking relapse rates drop off sharply after two years
The bad news for ex-smokers has always been that relapse rates are extremely high, but a new study suggests that staying away from cigarettes gets much easier after two years of abstinence, with more than 80 percent of former smokers achieving long-term success.

Insulin in heart development
Given the profound effects of insulin on energy metabolism and gene expression, it is not surprising that systemic deficiency in the insulin receptor (IR) leads to the early postnatal death of IR-deficient mice.

New relief for morning sickness
Research from the Women's and Children's Hospital and Adelaide University, Department of Obstetrics and Gynaecology has now shown that acupuncture is an extremely effective treatment for morning sickness in early pregnancy.

Arctic meltdown
Within a decade, the Arctic could be open to ordinary commercial shipping and open up new fisheries.

Researchers devise process to make designer plastics for hairspray, antiobesity drugs & inkjet iInk
Research chemists at the University of Warwick have devised and patented a new process called Living and Controlled Radical Polymerisation which can cheaply and easily grow designer polymers (plastics).

Could the FBI be doing more in the hunt for the anthrax attacker?
The attacker who sent anthrax spores through the US post last autumn may not have come from the only lab known to have recently produced the kind of culture used in the attack.

Tyrannosaurus rex probably could not run fast, scientists say
The top speed of Tyrannosaurus rex has long been debated.

Scientists, officials to examine Copenhagen issues
National Science Foundation (NSF) Director Rita Colwell will join the President's science advisor, John Marburger, and renowned scientists and authors at a symposium March 2 examining the World War II-era collaboration of eminent physicists Werner Heisenberg and Niels Bohr.

Rare form of meningitis contracted in Jamaica
A rare form of meningitis usually restricted to Southeast Asia and the Pacific Basin was contracted last year by a group of travelers to Jamaica, an article in the Feb.

Terabit transmission records, communicating with chaos, and fiber optics with fluids
A giant conference in Anaheim features numerous breakthroughs in the science and technology of fiber optics.

UCSF reports promising results for organ transplantation in HIV-infected patients
Early findings from a multi-site study led by UCSF investigators show that 95% of the HIV-infected patients in the study who received kidney transplants and 84% who received liver transplants in this era of Highly Active Anti-Retroviral Therapy (HAART), are surviving nearly one year post-transplant--rates comparable to non-HIV-infected kidney and liver transplant recipients for the same period.

Anthrax spores use failsafe protection system, say U-M scientists
Scientists know very little about what triggers an anthrax spore to break dormancy.

Researchers discover mechanism of plant resistance to pathogens
Plants have effective mechanisms aimed at protecting themselves against bacteria and fungi.
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