Ulcer-causing pathogen uses hydrogen for energy
...en Helicobacter pylori does not. "No one has ever suspected hydrogen to be an energy source for pathogens," Olson said. "Now we have a whole new target for antibiotics for this particular bacteria." The research is described in a paper published in the Friday, Nov. 29 edition of Science. The study was perfor...Norwegian study demonstrates targeted coxibs may prevent oral cancer
...nd mainly in inflammatory and immune cells and now suspected of playing a role in cell growth and genetic instability. Dr Jon Sudbø, Consultant at the Department of Oncology at the Norwegian Radium Hospital in Oslo, revealed plans for the trial at a news briefing today (Thursday 21 November) at the EORT...Coralreef fish desperately needs mangrove forests and seagrass fields
...protection of coral reefs. Up until now scientists suspected that seagrass fields and mangrove forests (trees which can survive in salt water) were nursery grounds for coral fish because young fish were often found there. However, there was a lack of scientific evidence to support this. The conclusions from th...Microorganisms are cleaning up Boston Harbor, UMass study finds
... in some fish. Some PAHs are highly toxic, and are suspected carcinogens in humans. The UMass team was prompted to study the issue after earlier research by Lovley found that benzene degrades in the absence of oxygen, in certain conditions. PAHs are essentially groups of two to five benzene rings, Lovley note...Hopkins researchers find postoperative fevers common following hemispherectomy
...iven lumbar punctures, or spinal taps, to diagnose suspected bacterial meningitis. Only six of these patients were diagnosed with meningitis, and these children had also complained of headache, lethargy and wound discharge, which the majority of children with low-grade fever alone did not experience. "This s...Another job discovered for a master metabolic off-switch
... a second deactivation mechanism that had not been suspected before. Their finding that the off-switch, known as beta-arrestin, operates in two distinct ways hints at a broader set of regulatory roles for the molecule, said the scientists. Receptors are proteins that nestle in the cell membrane, and which tran...Study reveals clues to brain development
...or decrease the activity of a number proteins they suspected might be involved. The results were clear: The activity of four proteins (NMDA receptors, AMPA receptors, Rac, and Cdc42) was required to trigger light-stimulated branching of optic tectal neurons. Conversely, the researchers concluded that decreased...Scientists discover role for c-myc gene in tumor angiogenesis
...ribute to cancer development, scientists have also suspected that c-Myc has additional roles in the progression of malignancy. Dr. Cleveland and colleagues have discovered such a role: c-Myc is essential for tumor angiogenesis. Growing tumors need oxygen and nutrients to survive. Once a tumor's demand for oxyg...US researchers find endometriosis associated with wide range of diseases
...ported that relatives also had either diagnosed or suspected endometriosis, confirming research that suggested there was a familial tendency. Lead investigator, Ninet Sinaii, from the National Institute of Child Health and Human Development, said: "As well as finding an increased prevalence of this wide range......tions. Among those options: minimizing or avoiding suspected allergens (i.e. dust, pollen, certain foods). Exercise and proper diets are also thought to alleviate the effect of allergies. Funding for this study was provided in part by grants from the Program for Promotion of Basic Research Activities for Innov...Heart disease gene linked to prostate cancer
... of prostate cancer, and the Hopkins investigators suspected that some MSR1 mutations might inhibit the ability of macrophages to clean up properly after prostate infections, producing inflammatory lesions that are often markers of prostate cancer. This is the first time that MSR1 has been linked to cancer, an...New insights into cause of stomach cancer
... some forms of inflammatory bowel disease. "Nobody suspected that interference with the messenger service engaged by gp130 could be linked with a 100 percent prevalence of early stages of gastric cancer in mice," says Giraud. "Drug treatment is years away, but now that we have begun to unravel the molecular me...Hormone replacement therapy may improve breast cancer detection and survival rate
...ase the density of breast tissue, researchers have suspected that HRT use would make it more difficult to detect tumors on mammograms. As a result, it was suspected that tumors in patients who have received HRT might not be detected until they were larger and more ...Scientists unlock secret behind cause of chronic lung disease
... "Because of the USA research, nobody in the world suspected that Hck could be linked to serious lung disease. Our results show otherwise," says Anderson. Macrophages will devour and destroy foreign bodies entering the lung tissue. In serious lung diseases, however, these macrophages become overactive trigge...Mayo Clinic develops blood vessel cells from adult progenitor cells
...n the path of cell differentiation. Scientists had suspected the existence of circulating SPCs because animal studies had shown that many smooth muscle cells found in atherosclerotic plaques or in restenosis after angioplasty had been partially derived from bone marrow. The Mayo Clinic study is the first to pr...A mane is a pain, but worth it for male lions
...uished McKnight University Professor Craig Packer, suspected that a more important function is to intimidate other males. This would be an obvious advantage to male lions in defending their prides against potential rivals. Also, a male that advertises his ability to defend a pride and its cubs should appear at...Bacterial alterations source of persistent COPD lung infections
...igation of the bacteria's molecular identity. They suspected acquiring a new strain of bacteria brought on the dangerous infections, causing the already sick patients to cough, choke and experience severe shortness of breath. Proving this would require a new way to identify one strain of bacteria from another....New threat to commercial fishing
... points to recent assertions that ocean warming is suspected of causing recruitment failure of cold-adapted North Sea cod. "Until now nobody suspected that any loss of diversity was happening as it was thought that even in over-fished populations wher...New gene discovered for male fertility in plants
...nt--the gene whose pollen-production function they suspected was being disabled by the presence of the jumping gene. The researchers then allowed the transposon to jump away from the gene, and they found that the plant's ability to produce pollen was restored to normal, proving that the jumping gene's former ...... in their genitalia. Historically scientists have suspected actual estrogens or chemicals that mimic estrogens in pollution as the causes of the gender bending effects on fish. Estrogen (or estrogen-like) molecules dock onto a structure called an estrogen receptor in the cells of the liver, ovaries, fat, bre...