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1 Dwight, Zachary LawrenceHeterozygote PCR product melting curve predictionMelting curve prediction of PCR products is limited to perfectly complementary strands. Multiple domains are calculated by recursive nearest-neighbor thermodynamics. However, the melting curve of an amplicon containing a heterozygous single nucleotide variant (SNV) after PCR is the composite of four...2014-01-01
2 Cloud, Joann L.; Meyer, Jay J.; Pounder, June I.; Woods, Gail L.Mycobacterium arupense sp. nov., a novel moderately growing nonchromogenic bacterium isolated from clinical specimensThis author manuscript discusses how several isolates of Mycobacterium species related to the M. terrae complex have been isolated from clinical samples. In the clinical microbiology laboratory, partial 16S rRNA gene sequencing (approximate first 500 base pairs) is often used to identify Mycobacteri...Mycobacterium arupense; Mycobacterium nonchromogenicum; Mycobacterium terrae; Mycobacterium triviale; MCRO 62005-11-22
3 Jaskowski, Troy D.; Litwin, Christine M.; Hill, Harry R.Laboratory diagnosis of Inflammatory Bowel Disease (IBD)Study to compare the results obtained by two separate reference libraries for serological assays utlilized in the diagnosis and differentiation of Crohn's disease and ulcerative colitis, and to assess the clinical utility of the outer-membrane porin C (OmpC) IgA assay in IBD.IBD2005-06-17
4 Slev, Patricia R.; Rawlins, Mindy, L.; Roberts, William L.Performance characteristics of seven automated CA 15-3 methodsPoster describing studies to evaluate seven automated methods for the following parameters: limit of detection, linearity, imprecision, reference intervals and method comparison with the ADVIA Centaur as the comparison method to detect CA 15-3.CA 15-3 Method2005-07-13
5 Rockwood, Alan L.Performance enhancement in the measurement of 5 endogenous steroids by LC-MS/MS combined with differential ion mobility spectrometryBackground: Challenges for steroid analysis by LC-MS/MS include low ionization efficiency, endogenous isobars with similar fragmentation patterns and chromatographic retention. Differential ion mobility spectrometry (DMS) provides an additional degree of separation prior to MS/MS detection, and show...2014-01-01
6 Cloud, Joann L.; Hoggan, Karen; Cohen, Samuel; Brown-Elliott, Barbara A.; Mann, Linda; Wilson, Rebecca; Aldous, Wade K.; Wallace, Jr, Richard J.; Woods, Gail L.Differentiation of mycobacterium chelonae and M. abscessus using SmartCycler PCR and MGB eclipse probesThis poster discusses how the use of partial 16S rDNA sequencing (first one-third of the gene) for the identification of Mycobacterium species from cultured isolates has become recognized as a very accurate method for identification. The distinction between M. chelonae and M. abscessus, however, is ...MGB Eclipse System; SmartCycler PCR; Mycobacterium abscessus2005-09-05
7 Mongia, Shella K.; Rawlins, Mindy, L.; Owen, William E.; Roberts, William L.Performance characteristics of seven automated CA125 assaysAuthor manuscript. Cancer antigen 125 (CA125) is a high molecular mass glycoprotien, which is used as tumor marker to monitor disease progression, response to therapy and in early detection of recurrence after treatment for ovarian cancer. The Access 2, ADVIA Centaur, ARCHITECT i2000, AxSYM, Elecsys...CA125 assays2005-08-29
8 Owen, William E.; Roberts, William L.Comparable effects of DIGIBIND and DigiFab in thirteen digoxin immunoassaysDigoxin is widely prescribed for the treatment of cardiac conditions (1). Because of its narrow therapeutic range, digoxin-related toxicity resulting from acute or chronic overdose is common. Metabolites of digoxin as well as related compounds, including digitoxin, tanshinones, bufandienolide, a...DIGIBIND; DigiFab; Digoxin immunoassays; Digoxin toxicity2002
9 Digre, Kathleen B.; Gouw, Launce G.; Harris, Catherine P.; Haines, John H.; Ptacek, L.J.Autosomal dominant cerebellar ataxia with retinal degeneration: clinical, neuropathologic, and genetic analysis of a large kindred.The autosomal dominant cerebellar ataxias (ADCA) comprise a heterogeneous group of neurologic disorders characterized by degeneration of the cerebellum, spinal cord, and brainstem. Genetic analysis has revealed two loci, SCA1 on chromosome 6p, and SCA2 on chromosome 12q, responsible for some ADCA. W...Retinal Degeneration; Cerebellar Ataxia; Genetic Analysis1994-08
10 Cloud, Joann L.; Dunn, Jim; Hoggan, Karen; Wilson, Deborah; Iwen, Peter; Lasala, Paul; Hall, Geri; Woods, Gail L.Sequence-based identification of gram negative nonfermenters using commercial 16S rDNA databasesThis poster presents a study assessing the validity of the databases from two commercial systems were compared for the identification of NF. Background: Identification of gram negative nonfermenters (NF) from cultured human specimens is often difficult using traditional phenotypic methods. Partial 1...MicroSeq500; Virodec2005-08-29
11 Margraf, Rebecca L.; Mao, Rong; Highsmith, W. Edward; Holtegaard, Leonard; Wittwer, Carl T.Masking selected sequence variation by incorporating mismatches into melting analysis probesHybridization probe melting analysis can be complicated by the presence of sequence variations (benign polymorphisms or other mutations) near the targeted mutation. We investigated the use of 'masking' probes to differentiate alleles with similar probe melting temperatures. Selected sequence variati...probe hybridization; high-resolution melting analysis; masking; RET2005-06-28
12 Stevenson, Jeffery B.; Hillyard, David R.Quantitative real time PCR assay for detecting EBV virus in multiple sample types.We are developing a real time quantitative PCR assay to detect EBV in serum, plasma, whole blood, tissue and spinal fluid. Real time PCR, with its intrinsic quantitative capacity, is an excellent method for measuring EBV viral load. Epstein Barr virus is a member of the Herpesvirus family, with a tr...Eclipse Probes; EBV Primer2005-08-11
13 Roberts, William L.Specificity characteristics of 7 commercial creatinine measurement procedures by enzymatic and jaffe method principlesStandardized calibration does not change a creatinine measurement procedure?s susceptibility to potentially interfering substances.2012
14 Owen, William E.; Roberts, William L.Performance characteristics of an HPLC method for Urinary AlbuminMicroalbuminuria is a marker of early diabetic nephropathy and cardiovascular risk. Immunoassays for urinary albumin can underestimate the amount of intact albumin present in urine. The purpose of this study was to evaluate a new urinary albumin assay that employs size exclusion HPLC with UV detecti...MA; Microalbuminuria; HPLC2005-07-06
15 Owen, William E.; Roberts, William L.Effects of hemoglobin (Hb) E and HbD traits on measurements of glycated Hb (HbA1c) by 23 methods.Glycohemoglobin (GHB), reported as hemoglobin (Hb) A1c, is a marker of long-term glycemic control in patients with diabetes and is directly related to risk for diabetic complications. HbE and HbDare the second and fourth most common Hb variants worldwide. We investigated the accuracy of HbA1c measur...Glycohemoglobin; GHB; Glycated Hb; Glycemic control2008
16 Seipp, Michael; Williams, Jamie; Meadows, Cindy; Wittwer, Carl T.Multiplex solution genotyping without probes of the factor V Leiden (G1691A), Prothrombin (G20210A), and MTHFR (C677T and A1298C) mutations in one tube by single color high-resolution melting analysis [abstract]This abstract describes a study which concludes that genotyping by amplicon melting is a rapid, closed-tube method for genotyping without probes that can be multiplexed. The method was successfully applied to the four most common clotting factor mutations in a single tube. The simplicity of the meth...Genotyping; Amplicon Melting2005-06-22
17 Owen, William E.; Rockwood, Alan L.; Roberts, William L.; Meikle, A. WayneDevelopment and performance evaluation of a tandem mass spectrometry assay for 4 adrenal steroidsCongenital adrenal hyperplasia is a group of autosomal recessive disorders caused by a deficiency of 1 of 4 enzymes required for the synthesis of glucocorticoids, mineralocorticoids, and sex hormones. Analysis of 11-deoxycortisol (11DC), 17-hydroxyprogesterone (17OHP), 17-hydroxypregnenolone (17O...Congenital adrenal hyperplasia; Adrenal steroids; Tandem mass spectrometry assay2006
18 Seipp, Michael; Williams, Jamie; Meadows, Cindy; Wittwer, Carl T.Multiplex solution genotyping without probes of the factor V Leiden (G1691A), Prothrombin (G20210A), and MTHFR (C677T and A1298C) mutations in one tube by single color high-resolution melting analysisThis poster describes a study which concludes that genotyping by amplicon melting is a rapid, closed-tube method for genotyping without probes that can be multiplexed. The method was successfully applied to the four most common clotting factor mutations in a single tube. The simplicity of the method...Genotyping; Amplicon Melting2005-06
19 Hymas, Weston C.; Hillyard, David R.Novel one step real time RT-PCR assay for the detection of Enterovirus, AThis poster describes the development of a novel real time assay that utilizes primers and an Eclipse probe in an overlapping format upstream of the Rotbart amplicon.RT-PCR Assay2005-11-08
20 Margraf, Rebecca L.; Mao, Rong; Wittwer, Carl T.Masking techniques: masking selected sequence variation by incorporating mismatches into melting analysis probesHybridization probe melting analysis can be complicated by the presence of sequence variation (non-pathogenic polymorphisms or other mutations) near the targeted mutation. We investigated the use of 'masking' probes to differentiate alleles with similar probe melting temperatures. Materials and Meth...probe hybridization; high-resolution melting analysis; masking; RET2005-10-21
21 Konnick, Eric Q.; Erali, Maria; Ashwood, Edward R; Hillyard, David RComparison of the DIGENE HBV HYBRID CAPTURE II AND ROCHE COBAS Amplicor HBV Monitor Assays.Evaluate and compare the performance characteristics of the COBAS Amplicor HBV Monitor test (Roche Diagnostics Corp.) and the HBV Hybrid capture II (Digene Corporation) assay for the quantification of HBV BNA Levels.Quantitative Tests; Linearity Studies2001-08-19
22 Konnick, Eric Q.; Erali, Maria; Ashwood, Edward R.; Hillyard, David R.Comparison of the National Genetics Institute (NGI) HCV Superquant and Roche COBAS Amplicor HCV Monitor, Version 2.0 AssaysChronic Hepatitis C infection is currently recognized as an important health care problem. It is estimated that nearly 4 million Americans are infected, 15 to 20 percent of whom will eventually develop Cirrhosis. Current treatments for Hepatitis C virus (HCV) are limited to alfa-interferon alone or ...Cirrhosis; Patients2000-04-22
23 Litwin, Christine M.Anti-tuberculosis IgG antibodies as a marker of active mycobacterium tuberculosis diseaseAnti-Mycobacterium tuberculosis IgG antibodies may aid in the diagnosis of active M. tuberculosis disease. We studied whether anti-M. tuberculosis IgG antibodies are elevated in active M. tuberculosis disease and assessed factors contributing to false positive and negative results. A retrospective s...2012-01-01
24 Owen, William E.; Roberts, William L.Performance characteristics of eight estradiol immunoassaysMeasurement of estradiol is useful in assisted reproduction, evaluation of infertility, menopause, and male feminization. The analytic performance of 8 estradiol immunoassays was evaluated. The imprecision and accuracy of the Access, ADVIA Centaur, ARCHITECT i2000, AutoDELFIA, Elecsys 2010, IMMULI...Estradiol immunoassays2004
25 Cloud, Joann L.; Carroll, Karen C.; Cohen, Samuel; Anderson, Clint M.; Woods, Gail L.Interpretive criteria for use of AccuProbe for identification ofRapid identification of Mycobacterium avium complex (MAC) is possible by use of AccuProbe (Gen-Probe, San Diego, Calif.). To evaluate the reliability of the MAC AccuProbe for testing 7H9 cultures inoculated with broth from MGIT cultures positive for acid-fast bacilli or growth on a s...Bacteria; Typing; Mycobacterium avium complex; MAC2005-03-03
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