Jean-nicolas Simard
Quebec, QC, Canada
Last Updated: 09/26/2026
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Found 14 publications
Assessment of serum total 25-hydroxyvitamin D assays for Vitamin D External Quality Assessment Scheme (DEQAS) materials distributed at ambient and frozen conditions.
Journal: Analytical and bioanalytical chemistry
Published: August 23, 2021
Interlaboratory comparison of 25-hydroxyvitamin D assays: Vitamin D Standardization Program (VDSP) Intercomparison Study 2 - Part 1 liquid chromatography - tandem mass spectrometry (LC-MS/MS) assays - impact of 3-epi-25-hydroxyvitamin D3 on assay performance.
Journal: Analytical and bioanalytical chemistry
Published: May 29, 2021
Assessment of serum total 25-hydroxyvitamin D assay commutability of Standard Reference Materials and College of American Pathologists Accuracy-Based Vitamin D (ABVD) Scheme and Vitamin D External Quality Assessment Scheme (DEQAS) materials: Vitamin D Standardization Program (VDSP) Commutability Study 2.
Journal: Analytical and bioanalytical chemistry
Published: April 06, 2021
Concentration range of serum sex steroids in normal postmenopausal women and those with diagnosis of vulvovaginal atrophy.
Journal: Menopause (New York, N.Y.)
Published: December 06, 2017
Corrigendum to "A sensitive, simple and robust LC-MS/MS method for the simultaneous quantification of seven androgen- and estrogen-related steroids in postmenopausal serum" [J. Steroid Biochem. Mol. Biol. 144 (2014) 523-534].
Journal: The Journal of steroid biochemistry and molecular biology
Published: April 01, 2016
Serum steroid concentrations remain within normal postmenopausal values in women receiving daily 6.5mg intravaginal prasterone for 12 weeks.
Journal: The Journal of steroid biochemistry and molecular biology
Published: December 10, 2015
A validated LC-MS/MS method for the sensitive quantitation of serum 7alpha hydroxy-, 7beta hydroxy- and 7keto-dehydroepiandrosterone using a novel derivatization reagent.
Journal: Steroids
Published: August 04, 2015
Serum steroids remain within the same normal postmenopausal values during 12-month intravaginal 0.50% DHEA.
Journal: Hormone molecular biology and clinical investigation
Published: July 31, 2015
Serum levels of sex steroids and metabolites following 12 weeks of intravaginal 0.50% DHEA administration.
Journal: The Journal of steroid biochemistry and molecular biology
Published: June 30, 2015
A rapid and sensitive UPLC-MS/MS method for the simultaneous quantification of serum androsterone glucuronide, etiocholanolone glucuronide, and androstan-3α, 17β diol 17-glucuronide in postmenopausal women.
Journal: The Journal of steroid biochemistry and molecular biology
Published: November 18, 2014
Validated LC-MS/MS simultaneous assay of five sex steroid/neurosteroid-related sulfates in human serum.
Journal: The Journal of steroid biochemistry and molecular biology
Published: October 08, 2014
Last Updated: 09/26/2026