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Molecular Diagnostics

Image: The ABI PRISM 3500 Genetic Analyzer Platform (Photo courtesy of Applied Biosystems)

Multiplex Nested Polymerase Chain Reaction Developed for Congenital Infections

 Infections are the leading cause of perinatal mortality in low- and middle-income countries, which have a higher prevalence of infections, and are responsible for 50% of infant deaths in the first year of life. Definitive diagnosis of congenital and perinatal infections is largely dependent upon the results of laboratory tests. More...
13 Jan 2020
Image: Photomicrograph of bone marrow aspirate of a pediatric patient with acute myeloid leukemia (Photo courtesy of St. Jude Children's Research Hospital).

Biomarker Predicts Prognosis in Acute Myeloid Leukemia Patients

 Acute myeloid leukemia (AML) is the most prevalent adult acute leukemia, which is characterized by abnormal proliferation and the accumulation of immature myeloid precursor cells in the bone marrow, peripheral blood, and even some tissues, contributing to the destruction of the hematopoietic system. More...
13 Jan 2020
Image: Micrograph showing a lymph node invaded by ductal breast cancer and with extranodal extension of the tumor. The dark purple (center) shows lymphocytes (part of a normal lymph node). Surrounding the lymphocytes and extending into the surrounding fat (top of image) is the ductal breast cancer (Photo courtesy of Wikimedia Commons)

Large GWAS Study Finds DNA Variants Linked to Risk of Developing Breast Cancer

 A large multinational study identified more than 350 DNA variants associated with the more than 150 regions of the genome known to be linked to the risk for developing breast cancer. More...
13 Jan 2020
Image: NMR solution structure of neuropeptide Y (Photo courtesy of Wikimedia Commons)

Peptide Biomarker Predicts Risk of Dying in Patients with Stable Heart Failure

 Cardiovascular disease researchers have identified a biomarker that predicts when a patient with chronic stable heart failure (CHF) is likely to die. More...
13 Jan 2020
Image: The Karius Test, which uses microbial cell-free DNA (mcfDNA-seq), can predict bloodstream infections in leukemia patients up to three days before the onset of symptoms (Photo courtesy of Karius)

Blood-Based Sequencing Identifies Pediatric Cancer Infections Before Symptoms

 Infections are common, yet life-threatening complications that affect immuno-compromised cancer patients and bloodstream infection (BSI) is a common, life-threatening complication of treatment for cancer. More...
09 Jan 2020
Image: Micrograph of a diffuse large B cell lymphoma, from a bone marrow aspirate; the nucleus may be convoluted and irregular (Photo courtesy of Peter Maslak)

Molecular Profiles, Microenvironment Signatures May Improve Lymphoma Prognosis

 The tumor microenvironment includes surrounding blood vessels, immune cells, fibroblasts, signaling molecules, and the extracellular matrix that encapsulate the cancerous cells. The non-lymphoma cells lingering in the tumor's microenvironment, for example, can modify the effect of the mutations. More...
09 Jan 2020
Image: 22q11.2 deletion syndrome is a disorder caused by the deletion of a small piece of chromosome 22. The deletion occurs near the middle of the chromosome at a location designated q11.2 (Photo courtesy of U.S. National Library of Medicine)

Common Variant Modifiers for Syndromic Heart Condition Located

 DiGeorge syndrome, also known as 22q11. 2 deletion syndrome, is a syndrome caused by the deletion of a small segment of chromosome 22. While the symptoms can vary, they often include congenital heart problems, specific facial features, frequent infections, developmental delay, learning problems and cleft palate. More...
09 Jan 2020
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Genetic Testing channel of LabMedica brings the latest in molecular genetics, cytogenetics, and epigenetics, and methods from PCR to FISH, and more.