Time filter

Source Type

Burlington, NC, United States

Laboratory Corporation of America Holdings, more commonly known as LabCorp, is an American S&P 500 company headquartered in Burlington, North Carolina. It operates one of the largest clinical laboratory networks in the world, with a United States network of 36 primary laboratories. Before a merger with National Health Laboratory in 1995, the company operated under the name Roche BioMedical. LabCorp performs its largest volume of specialty testing at its Center for Esoteric Testing in Burlington, North Carolina, where the company is headquartered.LabCorp was an early pioneer of genomic testing using polymerase chain reaction technology, at its Center for Molecular Biology and Pathology in Research Triangle Park, North Carolina, where it also performs other molecular diagnostics. It also does oncology testing, human immunodeficiency virus genotyping and phenotyping.LabCorp also operates the National Genetics Institute, Inc. in Los Angeles, California which develops PCR testing methods.LabCorp's ViroMed facility -- originally in Minnetonka, Minnesota -- and now operation under the ViroMed label but housed in Burlington, NC performs real-time PCR molecular microbial testing using Laboratory-Developed tests, developed at ViroMed.LabCorp also provides testing in Puerto Rico and, outside the United States, in three Canadian provinces.LabCorp Utilizes 7 PA-31-350's and 1 PC-12 Aircraft on nightly runs from Burlington, NC for use on the east coast.LabCorp has been criticized for its practice of paying the salaries of genetic counselors in hospitals and doctors' offices, which is perceived to be a possible conflict of interest. Wikipedia.

Nonaka D.,Christie Hospital | Nonaka D.,University of Manchester | Rosai J.,Centro Diagnostico Italiano | Rosai J.,LabCorp
American Journal of Surgical Pathology | Year: 2012

Thirteen cases of type A thymoma are reported showing the characteristic architectural attributes of this tumor type (World Health Organization), such as lobulation, perivascular spaces, gland-like formations, and cystic changes, but also displaying atypical features, as defined by increased mitotic activity, mild to moderate nuclear atypia, and/or scattered small foci of necrosis. The tumors were similar to type B3 thymomas in many respects, except for the fact that the tumor cells were spindled instead of round/polygonal. The existence of these cases suggests the desirability of an expansion of the type A thymoma category, analogous to that currently used for type B tumors. The various nomenclature options that could be used to name these tumors have been discussed. © 2012 by Lippincott Williams & Wilkins. Source

Shtilbans V.,LabCorp
Cancer Microenvironment | Year: 2013

Identification of gene expression mechanisms began with works on embryonic induction. The same mechanism of cell-cell interactions also contributes to the process of oncogenesis. Damage to epithelial cells' genetic apparatus turns them into precancerous stem cells that are not yet capable of tumor growth. They can be transformed into cancer stem cells and undergo further progression as a result of epigenetic effects of apocrine secretion by surrounding activated stromal cells (mostly myofibroblasts). These factors may activate the damaged genetic information. On the contrary, the level of malignancy can be decreased by adding culture medium from non-activated stromal cells. One must not exclude the possibility that in a number of cases genetically altered bone marrow may migrate to damaged or inflamed tissues and become there a source of stromal cells, as well as of parenchymal stem cells in a damaged organ, where they may give rise to changed epithelial (precancerous) stem cells or to activated stromal cells, thus leading to malignant tumor growth. Cancer treatment should also affect activated stromal cells. It may prevent emergence and progression of cancerous stem cells. © 2013 Springer Science+Business Media Dordrecht. Source

Del Gobbo A.,University of Milan | Moltrasio F.,University of Milan Bicocca | Young R.H.,Harvard University | Rosai J.,LabCorp | Rosai J.,Centro Diagnostico Italiano
American Journal of Surgical Pathology | Year: 2013

This report describes 2 new cases of testicular involvement by Rosai-Dorfman disease, also known as sinus histiocytosis with massive lymphadenopathy, and reviews the clinical and pathologic features of the other cases documented in the literature (4 cases) or included in the sinus histiocytosis with massive lymphadenopathy registry (7 cases). Our patients were 42 and 68 years of age, respectively, reflecting the usual middle-age of all the previously reported cases in this location, except for 1, which occurred in a child. Five cases were bilateral, and other sites, such as lymph nodes, kidney, skin, and adrenal gland, were involved in 8 cases. The histories were noteworthy in 2 of the cases, inasmuch as 1 patient had chronic lymphocytic leukemia, and another had a B-cell lymphoma. On gross examination, the testicular masses did not exhibit specific diagnostic features, whereas microscopic examination revealed the typical population of histiocytes, with abundant eosinophilic cytoplasm often exhibiting so-called emperipolesis. The differential diagnosis includes non-neoplastic conditions such as granulomatous orchitis, hematolymphoid disorders, a variety of metastatic tumors, and germ cell tumors. Copyright © 2013 by Lippincott Williams & Wilkins. Source

Increasing antibiotic resistance has prompted a search for new compounds with anti-microbial activity. In the authors' previous study, oregano extract was identified as one of the most potent anti-microbial compounds. The disk diffusion method was employed to assess the degree of inhibition against various microorganisms, and the bacteriostatic or bactericidal mechanism of action. Disk diffusion studies showed that oregano was found to be bacteriostatic for Staphylococcus aureus (S. aureus) and methicillin-resistant S. aureus, (MRSA) but bacteriocidal for seven other microorganisms. Psuedomonas aeruginosa could not be inhibited by oregano. An ointment consisting of 1-10% oregano could inhibit most organisms except for Proteus mirabilis and Proteus vulgaris, which required 20% and Pseudomonas which could not be inhibited even at the highest concentration of 80%. Oregano extracts can be formulated into an ointment that shows broad antimicrobial activity. Additional testing to assess tissue toxicity and other adverse reactions would be needed prior to human testing. Copyright © 2010 Journal of Drugs in Dermatology. Source

Katayev A.,LabCorp | Balciza C.,Canadian External Quality Assessment Laboratory | Seccombe D.W.,University of British Columbia
American Journal of Clinical Pathology | Year: 2010

Reference intervals are essential for clinical laboratory test interpretation and patient care. Methods for estimating them are expensive, difficult to perform, often inaccurate, and nonreproducible. A computerized indirect Hoffmann method was studied for accuracy and reproducibility. The study used data collected retrospectively for 5 analytes without exclusions and filtering from a nationwide chain of clinical reference laboratories in the United States. The accuracy was assessed by the comparability of reference intervals as calculated by the new method with published peer-reviewed studies, and reproducibility was assessed by the comparability of 2 sets of reference intervals derived from 2 different data sets. There was no statistically significant difference between the calculated and published reference intervals or between the 2 sets of intervals that were derived from different data sets. A computerized Hoffmann method for indirect estimation of reference intervals using stored test results is proved to be accurate and reproducible. © American Society for Clinical Pathology. Source

Discover hidden collaborations