Core Spins Faster Than Earth, Scientists Find
...The motion of the inner core has never before been detected ormeasured. The finding, reported July 18 in the journal Nature ,will likely advance understanding of how the Earth's magneticfield is created and why it reverses periodically; how heat flowsthrough the planet, and how the Earth's multi-layered inte...Genetic Alterations Linked To Cancer In Some Blood Samples
...e Johns Hopkins University School of Medicine have detected genetic mutations specific to cancer in blood samples of six patients with head and neck cancer. Their findings are reported in the September issue of Nature Medicine. "Although quite preliminary, these findings are interesting, because the presence...Harvard, Duke Researchers Discover 'Off-switch' Inside Human Cells
... Further experiments by the Harvard-Duke team also detected RGS10 in livinghuman cells, so they began studies to understand its action. These test-tubeexperiments revealed that RGS10 did appear to be a powerful inactivatorof several different kinds of activated G proteins, removing a phosphatefrom the G prote...Duke Ecologist Says Logging Is Creating 'Mahogany Deserts'
...k also found young mahogany trees growing whereshe detected signs of old hurricane or fire damage. Snook then began a systematic search for more sites of past disturbancesby conducting "oral history" interviews with local residents. "I had to be careful not to lead people into answers," recalledSnook, who s...Two Long-sought Diabetes Gene Found
...es. Most of those 74 have MODY, which can often be detected in early adolescence. In 1990, Bell mapped MODY1, the gene responsible for the disease in this family, to a small region on chromosome 20, but did not pinpoint the precise gene. This landmark paper was the first time genetic techniques had been used ...New Sensor Provides First Instant Test For Toxic E. coli Organism
...s a public health tool. Dangerous pathogens can be detected before a food product has been shipped to the store. Another advantage is cost. Says Stevens, "We can make an inexpensive sensor that can be placed on a number of different materials such as plastic, paper, or glass. The cost ofthe sensor i...Prostate Cancer May Be Predicted 10 Years Before Diagnosis
...cases (0.21?0.02). The values that most accurately detected prostate cancer were free to total PSA ratio of ?0.12 when total PSA was between 4.0 - 10.0ng/ml. "The majority of men who have elevated PSA levels and have further diagnostic tests, such as prostate biopsies, do not have prostate cancer," says Dr. ...Laser Microscope At Cornell Images Serotonin In Live Cells
...rotransmitter secretory granules have not directly detected the neurotransmitter content or allowed visualization of secretory processes. But the Cornell technology, called non-linear laser scanning microscopy, can detect and image the serotonin and measure its concentration and the total neurotransmitter co...Prostate Cancer's Aggressiveness May Be Predicted Early By The Ratio Of Free To Total PSA
...h non-aggressive cancers. Since these cancers were detected late-in an era before PSA was available-the researchers could more accurately separate aggressive and non-aggressive cancers by combining the cancer stage and the appearance of the cancer under the microscope. At a time when total PSA levels were no...Menstrual Phase Linked To Ineffective Mammograms
...ls to pick upcancer, the cancer can sometimes be detected without delay if a clinical breast exam issimultan... delayed." "If some breast cancers are not detected by mammography, obviously theoverall benefit of screening programs is likely to be reduced," expla...Maternal Lead Exposure Linked To High Numbers Of Cavities
...minerals, andin many other ways. In addition, they detected levels of lead inthe mothers' milk that were 10 times higher than the lead levelsin their blood. In an accompanying article in the journal, dentists MartinCurzon and Jack Toumba of the Leeds Dental School in the UnitedKingdom say this is the fir...Lethal Parasite Prime Suspect In Fish Kills At Salton Sea
... When present at levels as high as those detected in tilapia from the Salton Sea, the parasite impairs respiratory function and can suffocate the fish. Diagnosis is based on finding the attached feeding stage of the parasite present in gill scrapings. Since the life cycle of A...Synthetic Vitamin E And Natural Vitamin E Are Equally Powerful Antioxidents
... of California, San Diego, School of Medicinestudy detected no differences between a 1,600 IU dose of natural or syntheticvitamin E in patients with high cholesterol. "Such a large dose may have inundated the physiological system, negatingany differences that might have been seen with lower doses," sa...Herpes Virus Strain Identified As A Trigger In Multiple Sclerosis
... as normalvolunteers. In addition, the scientists detected HHV-6 DNA in the serum (amarker of active virus infection) of 15 of 50 individuals with MS. All 47individuals without MS tested negative for the presence of active HHV-6 viralinfection. Additional testing for the presence of HHV-6 virus in larger num...Pitt Researchers Construct Novel Delivery System For Gene Therapy Of Liver Disorders
... and released into the bloodstream where they were detected forup to 60 days after the initial injection. ...gene was found in the liver, geneactivity also was detected in the kidneys and lungs of injected animals. Whenthe researchers injected the mice with a differen...Doublecortin : A Novel Gene Involved In Cortical Development
...he X chromosome. While sequencing the genethe team detected a point mutation in more than two-thirds of 17 patients withthe X-SCLH/LIS syndrome, thereby demonstrating the major role of theDoublecortin gene in this disease condition. Furthermore, the authors showed that Doublecortin was strongly expressed in ...UF Researchers Identify Virus That May Cause Epidemic Disease In Sea Turtles
...pede normalfunction. The research team has detected the virus in more than95 percent of the tumors plaguing green and loggerhead sea turtlesfound in the waters surrounding Florida, as well as in tumorson green turtles in Hawaii. "Transmission studies carried out over the past sixyears at the T...Common Cold Caused By Multiple Viruses
...ds, but the number of cases inwhich rhinovirus was detected has been as low as 25 percent. Although diagnostic methods haveimproved greatly since then, no studies into the cause of the common cold have been publishedrecently. The researchers say that individuals who develop colds do not need to have their doc...USGS Scientists Implicate Exotic Parasite In Wisconsin Lake Bird Deaths
... Lake.Cole said that although the parasite was not detected during the 1996 die-off,she was able to find it in preserved samples from that event as well. Leyogonimus polyoon now shares responsibility for theShawano Lake die-off with Sphaeridiotrema globulus, a trematode parasitepreviously linked to the water...Sexually Active Younger Women Are At Higher Risk For Infection With Human Papillomavirus
... infection of cervical cells, and is usually first detected as an abnormalPap smear. The authors caution that because of the six-month interval between medicalvisits, the study results may underestimate the incidence and overestimate theduration of HPV infection. They also warn that it is uncertain whether t...