Tag: "researchers" at biology news
Pea Plant Stem Growth Gene Cloned
...at the group connected it to stem height. Now, the researchers
have demonstrated that in the tall pea plants used by Mendel, the tallness gene codes for an enzyme that adds a hydroxyl (HO) group at a very particular location onto GA20, which is the is the immediate precursor of GA1. In the dwarf plants there is ...
Study Sheds Light On Behavior Of Middle-Age 'Undertaker' Bees
...ve for 50 to 100 meters before dropping them. The researchers
also monitored how swiftly undertakers worked. "We didn't find any evidence for learning for this particular task,"Trumbo said. "This rules out one of the major hypotheses that hasbeen put forward for middle-aged specialization: That social insec...
Computer Model Offers New Insight On Bacterial Photosynthesis
...ntphotosynthetic systems. The accomplishment, the researchers
say, should boost the understandingof light absorp...details of last year's work, in collaboration with researchers
atthe Max Planck Institute for Biochemistry in Frankfurt, Germany, were publishedin the May 1996 iss...
Chemists Develop High-Throughput Method To Synthesize And Screen Novel Antibiotics
Cincinnati -- University of Cincinnati researchers
havedeveloped a system for quickly synthesizing and screeningpotential replacements for standard antibiotics, such aspenicillin and amoxicillin. All of these antibiotics fall intothe category known as beta lactams. Chemistry graduate student Jie Wang...
Fossils Show British Columbia Was Once 2,000 Miles South
...eighboring Vancouver Island are black. The researchers
took their core samples only where they found the shinyfossils. In every case, the sedimentary rocks showed a magnetic field closer tohorizontal than would be expected for northerly latitudes. Since there was noevidence of heating, and remagnetizati...
Mutant Gene Not Sole Explanation For Hiv Non-Progression
...). Instead, the researchers
say, the good health of such "long-term nonprogressors" probably is due to multiple factors, which may vary from individual to individual. Oren Cohen, M.D., a medical offi...
Researchers Find Association Between Alzheimer's Gene And Mental Impairment After Cardiac Surgery
...rain, leadingto potential neurologic problems. The researchers
believe that since thenormal APOE gene is involved in nerve cell repair, the variant versionsof the gene are unable to repair the subtle physiological changes causedby surgery, Newman said Each year, more than 400,000 patients undergo open heart sur...
Wonder Thread: UD Scientists Report First Protein With Collagen And Elastin-Like Domains
...r biomimetic materials, say University of Delaware researchers
whose work appears in the Sept. 19 issue of Scienc...o rocks, oil rigs, super-tankers and docks, the UD researchers
say. Not surprisingly, mussels "create a major fouling problem on economically important surfaces ex...
Gene For Last Major Form Of Batten Disease Discovered
... foreffective treatment. Now, for the first time, researchers
can describe thegenetic underpinnings of all major...mapped it to chromosome 11. This is the first time researchers
have used the mannose-6-phosphate strategy toidentify a defective gene. For LINCL, this strategy pr...
Smoking Mice Lead To Emphysema Breakthrough
...rfrom the disease. Before this study, most researchers
assumed that emphysema was caused byneutrophils, w...rentlyattracting intense scientific interest. Many researchers
believe that members ofthis family, called metalloproteinases, play a major role in a host of disord...
At-Risk Women Want Breast Cancer Gene Test--If 'Pros' Outweigh 'Cons'
...s of thepros and cons of such testing. The researchers
report in the September-October issue of PsychosomaticMedicine that 81 percent of the women planned to seek genetic testing, and 46percent said they were interested in getting tested as soon as possible. Formost of them, the readiness to be tested w...
Plant-Based Therapies Examined For Colon Cancer Prevention
...ay ensue. In the study, Shiff and fellow researchers
will examine the influence ofadministering different amounts of either curcumin, rutin or quercetin on theamount of colorectal cells replaced and the speed of this process during thenormal functions of the intestine. The study includes looking for a...
Pharmaceuticals Manufactured In Insect Larvae
...ts into little protein factories." Originally, the researchers
were exploring ways to safely combat agricultural ...ucing the expense. Using the HeRD system, the BTI researchers
are growing caterpillars -- Trichoplusia ni -- a pest best known as the cabbage looper, which feeds ...
Imaging Studies Illuminate Brain's Response To Cocaine
Using a state-of-the art imaging technique, researchers
at the MassachusettsGeneral Hospital (MGH) have sh...ods of reportedcraving. The results suggest, the researchers
believe, that while there are distinctareas involved in the various experiences of cocaine use, it i...
Study: Hydrogen Bonds Aren't Key To DNA Pairing After All
...ripheral role in theaccurate pairing of DNA bases, researchers
have shown,overturning the conventional wisdom lon...ol, who was joined in the research by postdoctoral researchers
Rex Ren and Sean Moran, says the finding could haveramifications far beyond the theoretical: Nucleos...
Two-Pronged Attack On Immune System Cells Engineered By HIV Gene vpr: Effects Markedly Reversed By Antisteroid Compound RU-486
...rly stages of infection by the virus. Now, researchers
at the University of Pennsylvania Medical Center r...lass of steroidal drugs calledglucocorticoids, the researchers
hypothesized that Vpr might act through thesame molecular pathway -- binding to the same receptors -...
Brain-Activity Data Clarify Contradictions In Earlier Anxiety Research
...asant,unpleasant, arousing or non-arousing events, researchers
measured brainactivity. Previous research on anxiety has yielded often contradicting and unexplainableresults, with electrical activity fluctuating between the brain's left andright hemispheres. The new findings, said U. of I. psychologist Wendy He...
Further Proof That An Altered Rb-2/p130 Gene Leads To Lung Cancer
at Jefferson Medical College, Philadelphia, are...ber issue of Clinical Cancer Research .. The researchers
monitored the expression of the Rb2 gene, which is a normal gene and is expressed in all tissue...
Popular 'Cure-All' Tea Can Cause Toxic Reactions
...umed allergic reactionand discharged. The researchers
caution that "these four cases highlight the use of aspecific alternative therapy with [the] potential for toxicity." Neither thetea?s claimed therapeutic benefits nor its adverse side effects have beenreported widely in scientific literature. ...
Long-Term Vitamin C Use Cuts Cataract Risk In Older Women
... had no prior history of cataract and for whom the researchers
hadcomplete lens examination data, 59 (24%) had clear lenses, 156 (63%) had early opacities, and32 (13%) had moderate opacities. Many of the opacities were found in the lens nucleus (nuclearregion) of the eye. Thirteen percent of the women reported ...
1 2 3 4 5 6 7 8 9 10