Our Research

Ectopic Pregnancy

1. Serum activin A does not predict ectopic pregnancy as a single measurement test, alone or as part of a multi-marker panel including progesterone and hCG

Fetal Lung Maturity

1. Validation of lamellar body counts using three hematology analyzers
2. Clinical and laboratory trends in fetal lung maturity testing
3. Biomarker tests for fetal lung maturity
4. Validation of the L/S ratio determined by digital scanning densitometry
5. Fetal lung maturity
6. A direct comparison between lamellar body counts and fluorescent polarization methods for predicting respiratory distress syndrome
7. The mean weekly increment of amniotic fluid TDx-FLM II ratio is constant during the latter part of pregnancy
8. Predicting respiratory distress syndrome using gestational age and fetal lung maturity by fluorescent polarization
9. Preanalytical factors that influence the Abbott TDx Fetal Lung Maturity II assay
10. Prediction of risk for respiratory distress syndrome using gestational age and the TDx-FLM II assay
11. Lamellar body count in amniotic fluid: a comparative study of four different hematology analyzers
12. Bilirubin in amniotic fluid does not interfere with the Abbott TDx FLM II assay
13. Assessment of the diagnostic accuracy of the TDx-FLM II to predict fetal lung maturity

General Laboratory Medicine

1. Antiquated tests within the clinical pathology laboratory

hCG

1. Falsely decreased human chorionic gonadotropin (hCG) results due to increased concentrations of the free beta subunit and the beta core fragment in quantitative hCG assays
2. An unlikely pregnancy
3. The analytical specificity of human chorionic gonadotropin assays determined using WHO International Reference Reagents
4. Qualitative point-of-care and over-the-counter urine hCG devices differentially detect the hCG variants of early pregnancy
5. Characterization of the hCG variants recognized by different hCG immunoassays: an important step toward standardization of hCG measurements
6. Serum human chorionic gonadotropin concentrations greater than 400,000 IU/L are invariably associated with suppressed serum thyrotropin concentrations
7. Clinical assays for human chorionic gonadotropin: what should we measure and how?
8. False-negative results from point-of-care qualitative human chorionic gonadotropin (hCG) devices caused by excess hCGbeta core fragment vary with device lot number
9. False-negative results in point-of-care qualitative human chorionic gonadotropin (hCG) devices due to excess hCGbeta core fragment
10. Use of serum FSH to identify perimenopausal women with pituitary hCG
11. Method validation for cerebral spinal fluid human chorionic gonadotropin measurement with the Advia Centaur
12. Detection of unexpected isoforms of human chorionic gonadotropin by qualitative tests
13. Persistent low concentration of human chorionic gonadotropin in a nonpregnant woman
14. Diagnostic considerations in the measurement of human chorionic gonadotropin in aging women
15. Endometrial adenocarcinoma associated with elevated serum concentrations of the free beta subunit of human chorionic gonadotropin
16. Method evaluation for total beta-human chorionic gonadotropin using urine and the ADVIA Centaur
17. Total beta-human chorionic gonadotropin measured in urine by an automated method
18. Should the qualitative serum pregnancy test be considered obsolete?
19. Limitations in qualitative point of care hCG tests for detecting early pregnancy

Hemolytic Disease of the Newborn

1. Comparison of various methods for amniotic fluid delta OD450 bilirubin measurement
2. Effect of blood contamination on delta 450 bilirubin measurement: an in vitro comparison of two corrective methods

Nutrition

1. The relationship between PTH and 25-hydroxy vitamin D early in pregnancy

Preterm Delivery

1. Cervicovaginal interleukin-6 as a predictor of preterm birth in African American women
2. Diagnostic accuracy of cervicovaginal interleukin-6 and interleukin-6:albumin ratio as markers of preterm delivery
3. Cervicovaginal interleukin-6, tumor necrosis factor-alpha, and interleukin-2 receptor as markers of preterm delivery
4. Accuracy of the rapid fetal fibronectin TLi system in predicting preterm delivery

Thyroid Disorders

1. Establishment of reference intervals for thyroid-stimulating hormone and free thyroxine in amniotic fluid using the Bayer ADVIA Centaur
2. Establishment of reference intervals for markers of fetal thyroid status in amniotic fluid
3. Thyroid function during pregnancy
4. Serum human chorionic gonadotropin concentrations greater than 400,000 IU/L are invariably associated with suppressed serum thyrotropin concentrations