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Loss Of Y Chromosome Increases Risk Of Alzheimer’s
Men with blood cells that do not carry the Y chromosome are at greater risk of being diagnosed with Alzheimer’s disease. This is in addition to an increased risk of death from other causes, including many cancers. These new findings by researchers at Uppsala University could lead to a simple test to identify those at risk of developing Alzheimer’s disease.
Making Virus Sensors Cheap and Simple
Researchers at The University of Texas at Austin demonstrated the ability to detect single viruses in a solution containing murine cytomegalovirus (MCMV).
Heart Defect Prediction Technology Could Lead to Earlier, More Informed Treatment
Experimental method uses genetics-guided biomechanics, patient-specific stem cells.
Biosensor Detects Molecules Linked to Cancer, Alzheimer's and Parkinson's
Novel biosensor has been proven capable of detecting molecules associated with neurodegenerative diseases and some types of cancer.
Big Data Can Save Lives
The sharing of genetic information from millions of cancer patients around the world could be key to revolutionising cancer prevention and care, according to a leading cancer expert from Queen's University Belfast.
Fast, Simple Test for Colitis
A minimally invasive screening for ulcerative colitis using emerging infrared technology could be a rapid and cost-effective method for detecting disease that eliminates the need for biopsies and intrusive testing of the human body.
Scans Reveal Babies of Mothers with Gestational Diabetes Have More Body Fat
Researchers at Imperial College London have found that the babies born to mothers with gestational diabetes have more body fat at two months of age compared to babies born to healthy mothers.
New Device Could Improve Cancer Detection
UBC researchers develop a microfluidic device to capture circulating tumor cells.
Plasma Biomarkers for Breast Cancer Diagnosis
Plasma lipidomics profiling identified lipid biomarkers in distinguishing early-stage breast cancer from benign lesions.
Newborn Screening Test Developed For Rare, Deadly Neurological Disorder
Scientists have developed a new dried blood spot screening test for Niemann-Pick type C, with goal to speed diagnosis and treatment.
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Bacterial Detection and Live/Dead Discrimination by Flow Cytometry
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BD Biosciences

Flow cytometry, a technique first applied to eukaryotic cells, has been adapted to the analysis of viability, metabolic state, and antigenic markers of bacteria.1-4 In particular, flow cytometry can be readily applied to the enumeration of viable bacteria in a sample.

Live cells have intact membranes and are impermeable to dyes such as propidium iodide (PI), which only leaks into cells with compromised membranes. Thiazole orange* (TO) is a permeant dye and enters all cells, live and dead, to varying degrees. With gram-negative organisms, depletion of the lipopolysaccharide layer with EDTA greatly facilitates TO uptake. Thus a combination of these two dyes provides a rapid and reliable method for discriminating live and dead bacteria. If enumeration of the bacteria is important, BD Liquid Counting Beads (BD Biosciences, San Jose, CA), a flow cytometry bead standard, can be used to accurately quantify the number of live, dead, and total bacteria in a sample.

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