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Medica 2025
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Molecular Diagnostics

Image: The BD LSRFortessa X-20 cell analyzer (Photo courtesy of BD Biosciences)

Immune Cells in Cerebrospinal Fluid Predict Response to Immunotherapy

Immune checkpoint inhibitors including anti-PD1, anti-PD-L1, and anti-CTLA4, have shown significant clinical benefits in patients with progressive or metastatic solid tumors, including some brain metastasis. Notably, these immune-based therapies have improved outcomes for some of those suffering from lung cancer and melanoma. More...
22 Mar 2021
Image: Diagram of an LC-MS system (Photo courtesy of Wikimedia Commons)

A Rapid, Non-Invasive Skin Test for Diagnosis of Parkinson’s Disease

A team of British investigators has developed a rapid, non-invasive method for identifying Parkinson's disease based on compounds found on the surface of skin. More...
22 Mar 2021
Image: Histopathology of pancreatoblastoma showing a large squamoid nest surrounded by sheet of bland monomorphic cells. Many of the squamous cell nuclei are optically clear due to accumulation of biotin (Photo courtesy of Dharam Ramnani, MD).

Pediatric Pancreatic Cancer Diagnosed from cfDNA Fragments in Urine

Although rare, pancreatoblastoma is the most common pancreatic tumor of young children. Carcinoma of acinar cell origin has rarely been reported in older children. Ductal adenocarcinoma and its many variants are the most common pancreatic tumors in adults, but these are exceedingly rare in children. More...
17 Mar 2021
Image: Model of clonal hematopoiesis in normal and inflammatory conditions. In a normal person, hematopoietic stem cells (HSCs) will differentiate and self-renew over the course of a lifetime to replenish the blood system. HSCs will acquire somatic mutations as a result of proliferative stress (Photo courtesy of University of California Irvine).

Clonal Hematopoiesis and Recurrent Mutations Identified in Blood Cancers

Clonal hematopoiesis of indeterminate potential (CHIP) is characterized by detectable hematopoietic-associated gene mutations in a person without evidence of hematologic malignancy. Somatic mutations at hotspots (genetic loci observed to be frequently mutated across cancer patients) often drive or contribute to cancer pathogenesis. More...
16 Mar 2021
Image: Cartoon representation of the molecular structure of the hexokinase-2 (HK2) protein (Photo courtesy of Wikimedia Commons)

Liquid Biopsy Technique Detects Circulating Tumor Cells in Patients with Non-Small Cell Lung Cancer

A liquid biopsy technique based on hexokinase-2, a key enzyme in glucose metabolism, is able to detect circulating tumor cells (CTCs) in patients with non-small cell lung cancer (NSCLC). More...
16 Mar 2021
Image: Presence of lymphocytes within tubular epithelium is one of the pathological features of acute cellular rejection of a kidney transplant (Photo courtesy of Wikimedia Commons)

Analysis of Urinary Exosome RNA Can Diagnose Kidney Transplant Rejection

A panel of mRNA signatures derived from urinary exosomes was shown to be a powerful and noninvasive tool to screen for the body’s rejection of a kidney allograft (a transplant from a genetically non-identical donor). More...
15 Mar 2021
Image: Micrograph of Whipple’s disease. This duodenal biopsy shows the characteristic feature of Whipple’s disease; foamy macrophages are present in the lamina propria cells (Photo courtesy of Nephron).

Whipple’s Disease Pathogen Found in International Diarrhea Patients

Tropheryma whipplei is the causative agent of Whipple’s disease. The organism has also been detected in the feces of healthy or asymptomatic persons and in the feces of patients with diarrhea. Symptoms tend to develop slowly over many years in most people with this disease. More...
11 Mar 2021
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