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Molecular Diagnostics

Image: Histopathology showing the key features of small cell lung carcinoma (SCLC): Nuclear molding; salt and pepper chromatin; and scant cytoplasm (Photo courtesy of Nephron).

Blood-Based MicroRNA Signatures Distinguishes Individuals with Lung Cancer

 The overall low survival rate of patients with lung cancer calls for improved detection tools to enable better treatment options and improved patient outcomes. Lung cancer affects about 228,000 people a year in the USA and has a five-year survival rate just shy of 20%. More...
16 Mar 2020
Image: The Oragene DNA saliva collection kit (Photo courtesy of DNA Genotek)

Methylated DNA in Saliva Samples Predicts Likelihood of Developing Childhood Obesity

 A study based on analysis of saliva samples supports the concept that determination of DNA methylation in salivary tissue can be used to predict the eventual development of obesity by Hispanic children. More...
16 Mar 2020
Image: The Direct-zol RNA Miniprep kit is an RNA purification kit that provides a streamlined method for the purification of up to 100 µg (per prep) of high-quality RNA directly from samples in TRI Reagent or similar (Photo courtesy of Zymo Research).

Noninvasive Urine Test Developed for Prostate Cancer

 It is estimated that 191,930 men will be diagnosed with prostate cancer (PCa) in USA this year, and 33,330 of these patients will die of the disease this year. PCa is one of the second most frequently diagnosed cancer deaths among men worldwide. More...
12 Mar 2020
Image: The QIAcube Connect is for fully automated nucleic acid extraction with QIAGEN’s spin-column kits (Photo courtesy of QIAGEN).

Presenilin1 Gene Characteristics Used as Alzheimer's Disease Biomarker

 Alzheimer's Disease manifests as a familial disease with monogenic inheritance and early onset (Early Onset AD: EOAD), or as a sporadic, multifactorial, late-onset disease (Late Onset AD: LOAD). The latter accounts for more than 90% of all cases and its causes are unknown. More...
11 Mar 2020
Image: Squamous cell carcinoma (SCC) in situ, high magnification, demonstrating an intact basement membrane (Photo courtesy of Wikimedia Commons)

Large Genetic Screen Identifies Eight New Variants Linked to Skin Cancer Risk

 A large genome-wide association study (GWAS) identified eight new gene loci linked to the risk of developing cutaneous squamous cell carcinoma. More...
11 Mar 2020
Image: Immunohistological micrograph showing a programmed death-ligand 1 (PD-L1) positive non-small cell lung carcinoma (Photo courtesy of Creative Commons BY-SA 4.0/Wikimedia).

Blood Test Predicts Response to Immunotherapy in Metastatic NSCLC

 Non-small cell lung cancer (NSCLC) patients with higher measures of tumor mutations that show up in a blood test generally have a better clinical response to PD-1-based immunotherapy treatments than patients with a lower measure of mutations. More...
10 Mar 2020
Image: Abnormal accumulation of tau protein in neuronal cell bodies (arrow) and neuronal extensions (arrowhead) in the neocortex of a patient who had died with Alzheimer`s disease (Photo courtesy of Wikimedia Commons)

Circulating Levels of Phosphorylated Tau Protein Differentiate Alzheimer’s Disease from other Types of Dementia

 Elevated levels of circulating phosphorylated tau 181 (pTau181) protein correlate with Alzheimer's disease (AD) and distinguish it from frontotemporal dementia, a condition that is often misdiagnosed as AD. More...
10 Mar 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.