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Tag: "performed" at biology news

A gene's first 'kiss' sets off that affair known as puberty

...y of Pittsburgh School of Medicine. The research, performed in collaboration with teams at Harvard University's Massachusetts General Hospital and the Oregon National Primate Research Center, builds on the discovery made independently by both Harvard and French researchers that a gene called GPR54 is defectiv...

Association of herpesvirus with lung disorder questioned

...uthors of the earlier study, Katano and colleagues performed two types of tests in the tissue samples, one to detect an antigen associated with HHV-8, the other to detect HHV-8 DNA. Both tests failed to detect either the antigen or the DNA in any of the 22 samples from the two groups with some form of pulmonar...

Genes In The Interferon System Important In Systemic Lupus Erythematosus

...atistics. The geneticand statistical analyses were performed by the doctoral student SnaevarSigurdsson and Professor Ann-Christine Syvänen at the Center forClinical Medical Research at Uppsala University.The study, comprising nearly 2,000 individuals, shows that two genes inthe interferon system are very stron...

Priming embryonic stem cells to fulfill their promise

...ncombination with others."Cell biologists have not performed such combinatorial assays for otherdesired cell types because they have no practical way to do so. Bhatia,Chien, and Flaim seized on the unique ability of so-called DNA spottingmachines to deliver tiny volumes of liquid, about one trillionth of alite...

Elusive HIV shape change revealed; Key clue to how virus infects cells

... approaches to vaccine development." The studies, performed in the Children's Hospital Boston Laboratory of Molecular Medicine, used the closely related simian immunodeficiency virus (SIV) as a stand-in for HIV. By aiming an X-ray beam through a crystallized form of gp120, they obtained the first high-resolut...

Research advances quest for HIV-1 vaccine

...Scripps Research Institute in La Jolla, California performed a study examining the detailed molecular structure of the complex formed when 4E10 binds to gp41 and determining how interaction of 4E10 with gp41 influences the virus. X-ray crystallography was used to determine the structure of the complex formed ...

Study Demonstrates Gene Expression Microarrays are Comparable and Reproducible

...ecently demonstrated that microarrays experiments performed in different labs "have a high degree of reprod...tcome. So far, though,microarray studies have been performed by individual institutions.Evaluation of the potential clinical use of microarrays may requirelarger...

Breakthrough Microarray-based Technology for the Study of Cancer

...In the past, comparative genomic hybridization was performed throughthe optical imaging of whole chromosomes, a technique with limitedsensitivity, resolution, quantification and throughput. Efforts inrecent years to use microarrays to overcome these limitations have beenhampered by inadequate sensitivity, spec...

Marburg virus disease in Angola - update

...tion and laboratory results were negative in tests performed by the Bernard-Nocht Institute for Tropical Medicine, Hamburg, Germany, a WHO Reference Laboratory. ...

Emory Eye Center Implants Its First Retinal Chips In Patients With Retinitis Pigmentosa

...na specialists Thomas M. Aaberg, Sr. and Jiong Yan performed the surgery recently on five patients. Another two patients are planned for mid-February. "This experimental device may make it possible for those with retinitis pigmentosa to have a much better quality of life," says Dr. Aaberg. "We are excited to ...

Leukemia Drug Breakthrough Study In New England Journal Of Medicine

...m two recent confirmatory phase II clinical trials performed nationwide involving more than 350 patients with red blood cell transfusion-dependent MDS - to the U.S. Food and Drug Administration in a new drug application (NDA) for Revlimid as an innovative approach to treat the anemia of MDS patients with the 5...

Color-blind method opens new doors in DNA sequencing

...sequence from native DNA" without manipulation now performed in the laboratory, said Dr. Michael L. Metzker, assistant professor in the BCM Human Genome Sequencing Center and adjunct assistant professor of chemistry at Rice. "We could make sequencing portable and do it faster." The research appears this week ...

Needling Chromosomes Reveals Cell Division Secret

...ched. Paliulis was a Duke graduatestudent when she performed the experiments, but is now a postdoctoralfellow a... said, Paliulis masteredthe delicate technique and performed numerous experiments pulling thechromatids apart at different points along their length and atdiffer...

Study: Soap And Water Work Best In Ridding Hands Of Disease Viruses

...d for and participated in the study. Investigators performed five evaluations on each of the 14 agents. The N.C. Statewide Program for Infection Control and Epidemiology supported the research. ...

Open microfluidic and nanofluidic systems

... significantly change the way in which research is performed in the life sciences since they offer the ability to work with much smaller reagent volumes, much shorter reaction times, and the possibility of massive parallel processing. In general, this should lead to increased throughput and, thus, to reduced c...

Scientists reveal molecular secrets of the malaria parasite

....K., where thesequencing and genome annotation was performed on two species of rodentmalaria (Plasmodium chabaudi and P. berghei); the University of Leidenin the Netherlands and Imperial College in England, where scientistscarried out gene expression studies; and The Institute for GenomicResearch (TIGR), in Ma...

Discovery Could Lead To Novel Approaches In HIV Treatment

...ty, a prestigious scientific journal. This workwas performed in collaboration with investigators from the ResearchInstitute of the McGill University Health Centre as well as from Franceand Israel. Usingonly blood samples, these researchers first developed a method toassess how well the thymus functions. The t...

Tiny scaffolding allows stem cells to become working fat cells

...o-dimensional" patches fail to mimic all the tasks performed by cells in vivo. Specific genes, proteins and hormones normally produced by healthy cells are often absent in two-dimensional colonies. "The PET fibers are spun out onto a mat that resembles the intracellular matrix that bonds cells together in nor...

NJIT Presidential Award winner takes stem cell research another step

...d on developing scaffolds that aid stem cells. She performed animal studies on rats with bone defects; she also did cell-culture studies. Both showed that the biomaterials stimulated stem cells, producing new bone tissue and fully repairing the rats' bones. Arinzeh's second stem-cell discovery proved that adu...

X-Ray Beams And Fruit Fly 'Flight Simulator' Aid Scientists' View Of Muscle Power

...Illinois Institute of Technology (IIT) and Caltech performed research to answer that and other questions. The research team, including David Maughan, Ph.D., research professor of molecular physiology and biophysics at the UVM College of Medicine, published their results in a report in the Jan. 20 issue of the...

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