Evidence map›Paper›PMID 28801832›Full record

ArticleAnalytical and bioanalytical chemistry2017

Simultaneous measurement of total estradiol and testosterone in human serum by isotope dilution liquid chromatography tandem mass spectrometry.

Hui Zhou, Yuesong Wang, Matthew Gatcombe, Jacob Farris, Julianne C Botelho, Samuel P Caudill, Hubert W Vesper

Abstract readValidation Study
In one paragraph

Article in Analytical and bioanalytical chemistry, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
1.6field-weighted citation impact, top 16% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

25 citing papers in PubMed, 47 citations in OpenAlex.

  1. Article
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  4. Vasomotor symptoms of menopause, sympathetic activity, and blood pressure in postmenopausal females.American journal of physiology. Heart and circulatory physiology · 2025
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  11. Sleep disturbance and sympathetic neural reactivity in postmenopausal females.American journal of physiology. Heart and circulatory physiology · 2024
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  13. Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 1 institution in 1 country.

Hui ZhouCenters For Disease Control and Prevention, National Center For Environmental Health, Division of Laboratory Sciences, Clinical Chemistry Branch, 4770 Buford Hwy NE, Atlanta, GA, 30341, USA.
Yuesong WangCenters For Disease Control and Prevention, National Center For Environmental Health, Division of Laboratory Sciences, Clinical Chemistry Branch, 4770 Buford Hwy NE, Atlanta, GA, 30341, USA.
Matthew GatcombeCenters For Disease Control and Prevention, National Center For Environmental Health, Division of Laboratory Sciences, Clinical Chemistry Branch, 4770 Buford Hwy NE, Atlanta, GA, 30341, USA.
Jacob FarrisCenters For Disease Control and Prevention, National Center For Environmental Health, Division of Laboratory Sciences, Clinical Chemistry Branch, 4770 Buford Hwy NE, Atlanta, GA, 30341, USA.
Julianne C BotelhoCenters For Disease Control and Prevention, National Center For Environmental Health, Division of Laboratory Sciences, Clinical Chemistry Branch, 4770 Buford Hwy NE, Atlanta, GA, 30341, USA.
Samuel P CaudillCenters For Disease Control and Prevention, National Center For Environmental Health, Division of Laboratory Sciences, Clinical Chemistry Branch, 4770 Buford Hwy NE, Atlanta, GA, 30341, USA.
Hubert W VesperCenters For Disease Control and Prevention, National Center For Environmental Health, Division of Laboratory Sciences, Clinical Chemistry Branch, 4770 Buford Hwy NE, Atlanta, GA, 30341, USA. HVesper@cdc.gov.
Center for Environmental Health · US

Funding

Intramural CDC HHS CC999999
6 · The paper itself

Abstract

Reliable measurement of total testosterone and estradiol is critical for their use as biomarkers of hormone-related disorders in patient care and translational research. We developed and validated a mass spectrometry method to simultaneously quantify these analytes in human serum without chemical derivatization. Serum is equilibrated with isotopic internal standards and treated with acidic buffer to release hormones from their binding proteins. Lipids are isolated and polar impurities are removed by two serial liquid-liquid extraction steps. Total testosterone and estradiol are measured using liquid chromatography tandem mass spectrometry (LC-MS/MS) in combination of positive and negative electrospray ionization modes. The method shows broad analytical measurement range for both testosterone 0.03-48.5 nM (0.75-1400 ng/dL) and estradiol 11.0-5138 pM (2.99-1400 pg/mL) and excellent agreement with certified reference materials (mean bias less than 2.1% to SRM 971, BCR 576, 577, and 578) and a high order reference method (mean bias 1.25% for testosterone and -0.84% for estradiol). The high accuracy of the method was monitored and certified by CDC Hormone Standardization (HoSt) Program for 2 years with mean bias -0.7% (95% CI -1.6% to 0.2%) for testosterone and 0.1% (95% CI -2.2% to 2.3%) for estradiol. The method precision over a 2-year period for quality control pools at low, medium, and high concentrations was 2.7-2.9% for testosterone and 3.3-5.3% for estradiol. With the consistently excellent accuracy and precision, this method is readily applicable for high-throughput clinical and epidemiological studies.

Indexed as

AdolescentAdultChildChromatography, LiquidEstradiolFemaleHumansIndicator Dilution TechniquesIsotopesLimit of DetectionLiquid-Liquid ExtractionMaleMiddle AgedTandem Mass SpectrometryTestosteroneYoung AdultEstradiolIsotopesTestosteroneCDC HoStEstradiolHormoneLC–MS/MSSerumTestosterone

Identifiers

PMID28801832
PMCPMC5693763
OpenAlexW2743152734

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.