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Tag: "cultures" at biology news

Gene chip technology shows potential for identifying life-threatening blood infection

...nfectious systemic inflammation is made by sending cultures of patients' blood, sputum, or urine to the laboratory for analysis, which can take several days. Gene chips could cut the typical time needed for diagnosis to eight hours or less, Cobb says. In the new research, Cobb and his colleagues mimicked s...

Study finds the air rich with bacteria

...m." In the past, scientists relied on bacterial cultures to determine what microbes are present in an air sample. In this method, the culture media is exposed to the sample, and whatever grows is counted. Unfortunately, this approach leaves out all of the organisms that can't survive in the culture, which ...

Therapeutic role found for carbon monoxide

...s Otterbein. But, he adds, when they exposed these cultures to carbon monoxide, nothing happened. The cells behaved normally. "We eventually asked ourselves, 'What if we're not seeing results in these two separate dishes because in the body, the two aren't separated. What if these two cell types somehow act ...

Bitter taste identifies poisons in foods

...vidual eating them. Most people in industrialized cultures can and should enjoy these foods. In addition to providing essential nutrients and vitamins, many are reported to have anti-cancer properties." Lead author Mari Sandell comments on additional nutritional and practical implications of the study, "...

Common cold virus leads to death in lung transplant patients

...nt report, which includes positive bronchoalveolar cultures and lung immunochemistry, incontrovertible evidence of rhinoviral replication in the lung in the setting of spontaneous infection has been lacking. This report informs our understanding of the mechanisms underlying rhinovirus-induced exacerbations of...

Genomic comparison of lactic acid bacteria published

...that can be used to understand and improve starter cultures for dairy, meat, and wine fermentations; probiotic cultures; and other industrial applications. The extensive bioinformatic analyses by world experts adds to the impact of the genomic data and provides new hypotheses on how microbial genomes evolve b...

Embryonic stem cells do better on bumpy nanoscale mattress

...ir pluripotent properties. But until now, HES cell cultures had a tendency to spontaneously differentiate, th...out warning into a developmental pathway. HES cell cultures have to be closely watched to remove any of these spontaneously differentiated colonies. Resear...

Faster, more accurate tuberculosis test developed

...e samples using MODS, the researchers observed the cultures under an inverted light microscope for 40 days. Th...thambutol and streptomycin--TB antibiotics--to the cultures in order to detect drug-resistant TB. Compared to standard culture reference methods, drug-resistant...

U-M researchers use nanoparticles to target brain cancer

.... Researchers tested the nanoparticles in cell cultures and animal models. The studies showed the nanoparticles traveled to the tumor, resulting in less Photofrin exposure throughout the body and enhanced exposure within the tumor. This allowed a larger window for activating the drug with light. It also w...

Antibody extends life of mice with breast cancer

...e JAA-F11, the study found. In addition, exposing cultures of tumor cells to the antibody inhibited cell growth by a statistically significant 16 percent. Kate Rittenhouse-Olson, Ph.D., associate professor of clinical and laboratory sciences in the UB School of Medicine and Biomedical Sciences, is senior...

Transmission of antibiotic-resistant bacteria linked to previous intensive care unit room occupants

...2005. As part of the hospitals' normal protocols, cultures were obtained from all ICU patients when they arrived and every week they stayed to determine the presence of MRSA and VRE. Upon entering the ICU, 809 patients carried MRSA and 658 carried VRE, leaving 7,629 to screen for the acquisition of MRSA ...

Researchers identify new weapon to fight deadly bacterial sepsis

...to survive. Other experiments conducted in cell cultures traced the specific biochemical pathways by which LPS triggers an inflammatory cycle that damages the cells of the heart. By blocking aldose reductase activity with pharmacological inhibitors or using small interfering RNAs (pieces of genetic materia...

One signal elicits thousands of answers

... in their temporal dynamic. For this approach cell cultures were stimulated by EGF for different lengths of time. The "Epidermal Growth Factor" is known for causing the phosphorylation of a multitude of enzymes and proteins along a signal transduction pathway. In the following step all proteins were isolated ...

Origin of inherited pain disorder pinpointed

...ective in PEPD—acts to correct this abnormality in cultures of neurons. The researchers also compared PEPD with another inherited pain disorder, primary erythermalgia (PE) that is not alleviated by carbamazepine. PE is also caused by mutations in SCN9A and is characterized by pain in the extremities trigger...

New approach to BSE successful in lab

...f Pharmacology of the University of Bonn. “In cell cultures the production of PrP-C was thereby cut back by up to 97 per cent.? The researchers then tested what effect these siRNAs had on mice which had scrapie. ‘If brain cells are to produce siRNAs, you have to smuggle in the corresponding gene,?says Profe...

Living view in animals shows how cells decide to make proteins

...nt amounts, and detecting such differences in cell cultures can be exceedingly difficult, he said. "This is a powerful tool to apply to mouse genetics to learn when and where in the animals' bodies alternative splicing decisions are made and, eventually, to learn what factors are critical in making these d...

Scientists crack rhino horn riddle

...ve long been objects of mythological beliefs. Some cultures prize them for their supposed magical or medicinal qualities. Others have used them as dagger handles or good luck charms. But new research at Ohio University removes some of the mystique by explaining how the horn gets its distinctive curve and shar...

Music genes and musical geniuses

...y analogies between the evolution of languages and cultures (with music at the very top) and various aspects of human evolution. Music highlights the cultural links between populations; likewise genetics gives us the means to highlight biological kinships. In this logic, we thought it would be interesting to ...

Engineering the heart piece by piece

...y to study heart disease and its treatment in cell cultures ?and promise over the longer term as a source of new patient treatments. As part of the effort to make the leap from the lab to the clinic, U-M is applying for patent protection on the Artificial Heart Laboratory’s developments and is actively loo...

New culture method for hepatitis C virus uses primary hepatocytes and patient serum

...ents, Fausto and colleagues transfected hepatocyte cultures with HCV genomic RNA and found replication of HCV RNA genomes and production of core protein (for virus particle formation). Release of infectious virus particles was confirmed, as media from these cells were able to infect naive hepatocytes. Finally...

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