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Laboratory and Basic Science Research Commons

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Full-Text Articles in Laboratory and Basic Science Research

Diagnosis Of Strongyloides Stercoralis: Detection Of Parasite-Derived Dna In Urine, Nilanjan Lodh, Reynaldo Caro, Shterna Sofer, Alan Scott, Alejandro Krolewiecki, Clive J. Shiff Nov 2016

Diagnosis Of Strongyloides Stercoralis: Detection Of Parasite-Derived Dna In Urine, Nilanjan Lodh, Reynaldo Caro, Shterna Sofer, Alan Scott, Alejandro Krolewiecki, Clive J. Shiff

Clinical Lab Sciences Faculty Research and Publications

Detecting infections of Strongyloides stercoralis is arduous and has low sensitivity. Clinically this is a major problem because chronic infections may disseminate in the host and lead to a life threatening condition. Epidemiologically, S. stercoralis is often missed in surveys as it is difficult to identify by standard stool examination procedures. We present, for the first time, evidence that the infection can be detected in filtered urine samples collected and processed in the field and subsequently assayed for the presence of parasite DNA. Urine specimens (∼40 mL) were collected from 125 test and control individuals living in rural and peri-urban …


Update On Laboratory Diagnosis And Epidemiology Of Trichomonas Vaginalis: You Can Teach An “Old” Dog “New” Trichs, Erik Munson, Maureen Napierala, Kimber L. Munson Oct 2016

Update On Laboratory Diagnosis And Epidemiology Of Trichomonas Vaginalis: You Can Teach An “Old” Dog “New” Trichs, Erik Munson, Maureen Napierala, Kimber L. Munson

Clinical Lab Sciences Faculty Research and Publications

Past viewpoints on Trichomonas vaginalis infection have characterized the associated clinical disease as a “nuisance” condition, with affected demographics largely being older African American females residing in urban centers. The advent of commercial molecular assays specific for T. vaginalis has offered a new outlook on trichomoniasis. Within high-prevalence sexually transmitted infection populations, parasite distribution is not localized to specific population centers, and T. vaginalis prevalence is elevated among both younger and older age groups. Adaptation of these molecular assays can additionally facilitate male screening and subsequent epidemiologic characterization. These findings, combined with associations between T. vaginalis infection and human immunodeficiency …


Arthritis Is Developed In Borrelia-Primed And -Infected Mice Deficient Of Interleukin-17, Joseph Kuo, Thomas F. Warner, Erik Munson, Dean T. Nardelli, Ronald F. Schell Oct 2016

Arthritis Is Developed In Borrelia-Primed And -Infected Mice Deficient Of Interleukin-17, Joseph Kuo, Thomas F. Warner, Erik Munson, Dean T. Nardelli, Ronald F. Schell

Clinical Lab Sciences Faculty Research and Publications

Interleukin-17 (IL-17) has been shown to participate in the development of Lyme arthritis in experimental mice. For example, neutralization of IL-17 with antibodies inhibits induction of arthritis in Borrelia-primed and -infected C57BL/6 wild-type mice. We hypothesized that mice lacking IL-17 would fail to develop Borrelia-induced arthritis. IL-17-deficient and wild-type C57BL/6 mice were primed with heat-inactivated Borrelia and then infected with viable spirochetes 3 weeks later. No swelling or major histopathological changes of the hind paws were detected in IL-17-deficient or wild-type mice that were primed with Borrelia or infected with viable spirochetes. By contrast, IL-17-deficient and wild-type mice …


Acute Respiratory Distress Syndrome Caused By Plasmodium Falciparum Infection, Erik Munson, Patricia G. Luedke, William D. Timm Sep 2016

Acute Respiratory Distress Syndrome Caused By Plasmodium Falciparum Infection, Erik Munson, Patricia G. Luedke, William D. Timm

Clinical Lab Sciences Faculty Research and Publications

No abstract provided.


Application Of Alternative Nucleic Acid Extraction Protocols To Progastro Sscs Assay For Detection Of Bacterial Enteric Pathogens, Erik Munson, Maureen Napierala, Kimber L. Munson, Dorothy Bilbo, Michael A. Schulte May 2016

Application Of Alternative Nucleic Acid Extraction Protocols To Progastro Sscs Assay For Detection Of Bacterial Enteric Pathogens, Erik Munson, Maureen Napierala, Kimber L. Munson, Dorothy Bilbo, Michael A. Schulte

Clinical Lab Sciences Faculty Research and Publications

As an alternative to automated extraction, fecal specimens were processed by investigational lysis/heating (i.e., manual) and by chromatography/centrifugation (i.e., column) methods. ProGastro SSC and Shiga toxin-producing Escherichia coli (i.e., STEC) indeterminate rates for 101 specimens were 1.0% to 3.0% for automated, 11.9% for manual, and 24.8% to 37.6% for column methods. Following freeze-thaw of 247 specimens, indeterminate rates were 1.6% to 2.4% for manual and 0.8 to 5.3% for column methods. Mean processing times for manual and column methods were 30.5 and 69.2 min, respectively. Concordance of investigational methods with automated extraction was ≥98.8%.


Biographical Feature: Clyde Thornsberry, Ph.D., Erik Munson Feb 2016

Biographical Feature: Clyde Thornsberry, Ph.D., Erik Munson

Clinical Lab Sciences Faculty Research and Publications

No abstract provided.


Suboptimal Trichomonas Vaginalis Antigen Test Performance In A Low-Prevalence Sexually Transmitted Infection Community, Kimber L. Munson, Maureen Napierala, Erik Munson Feb 2016

Suboptimal Trichomonas Vaginalis Antigen Test Performance In A Low-Prevalence Sexually Transmitted Infection Community, Kimber L. Munson, Maureen Napierala, Erik Munson

Clinical Lab Sciences Faculty Research and Publications

Trichomonas vaginalis is the most common nonviral etiology of sexually transmitted infection (STI) worldwide. The OSOM Trichomonas rapid test (OSOM; Sekisui Diagnostics, San Diego, CA) is a rapid surrogate to microscopic analysis in symptomatic patients, but its performance in low-prevalence STI populations has been assessed on a limited basis in the literature. OSOM has widespread usage, as accreditation data from the College of American Pathologists report that over 300 participant laboratories utilize this assay on an annual basis. We sought to characterize the analytical and clinical performance of OSOM in a low-prevalence STI population on the basis of a commercial …