Evidence map›Paper›PMID 19808850›Full record

ArticleThe Journal of clinical endocrinology and metabolism2009

Influence of age and obesity on serum estradiol, estrone, and sex hormone binding globulin concentrations following oral estrogen administration in postmenopausal women.

Roksana Karim, Wendy J Mack, Howard N Hodis, Subir Roy, Frank Z Stanczyk

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of clinical endocrinology and metabolism, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
1.5field-weighted citation impact, top 17% 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

31 citing papers in PubMed, 53 citations in OpenAlex.

  1. Trial
  2. Determinants of attained estradiol levels in response to oral estradiol plus progesterone therapy.Climacteric : the journal of the International Menopause Society · 2021
    Trial
  3. Trial
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  8. Concentrations of endogenous sex steroid hormones and SHBG in healthy postmenopausal women.The Journal of steroid biochemistry and molecular biology · 2022
    Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Gender Differences in Obesity-Related Cancers.Current obesity reports · 2021
    Review
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  15. Article
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  19. Review
  20. Circulating zearalenone and its metabolites differ in women due to body mass index and food intake.Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association · 2018
    Article
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

5 authors at 1 institution in 1 country.

Roksana KarimDepartment of Pediatrics, University of Southern California, Los Angeles, California 90033, USA. rkarim@usc.edu
Wendy J Mack
Howard N Hodis
Subir Roy
Frank Z Stanczyk
University of Southern California · US

Funding

ESTROGEN IN THE PREVENTION OF ATHEROSCLEROSIS TRIALR01AG018798 · NIA · UNIVERSITY OF SOUTHERN CALIFORNIA · PI HODIS, HOWARD N · 2001 to 2004
$1.4M
NIA NIH HHS R01 AG018798NIA NIH HHS R01 AG-18798
6 · The paper itself

Abstract

objectiveHormone therapy (HT) increases the risk of venous thrombosis and stroke. Risk of venous thrombosis and stroke is higher in older, overweight, and obese women using HT. However, the impact of age and obesity on estrogen concentrations among HT users is not well defined.

methodWe measured serum levels of estrone, total and free estradiol, and SHBG in 180 postmenopausal women participating in the Estrogen in the Prevention of Atherosclerosis Trial (EPAT), 91 receiving estradiol therapy (ET) and 89 taking placebo, every 6 months over 2 yr. Mean on-trial levels of estrogens and SHBG were compared across age, body mass index (BMI), and waist to hip ratio categories among ET users and placebo separately.

resultsAmong the ET users, total (P = 0.01) and free estradiol (P = 0.002) were significantly directly associated with BMI adjusted for age. SHBG was inversely related to waist to hip ratio adjusted for age (P = 0.005). Age was not associated with any of the estrogen or SHBG concentrations in ET or placebo groups. BMI was positively associated with estrone concentrations among older but not younger ET users (P for interaction = 0.03).

conclusionOverweight and obese women using ET attain greater concentrations of estrogen compared to women with normal BMI, whereas ET users with abdominal obesity attain lower SHBG levels. Obese older women using ET have the highest concentration of estrone. It may be useful to consider age and obesity when prescribing HT to minimize the risk of venous thrombosis or stroke in postmenopausal women. Further research regarding relationships among circulating hormone levels and risk for these conditions is required to substantiate this conclusion.

Indexed as

Body Mass IndexPostmenopauseAgedEstradiolEstrogensEstroneFemaleHumansHysterectomyMiddle AgedObesityPlacebosSex Hormone-Binding GlobulinWaist-Hip RatioEstradiolEstrogensEstronePlacebosSex Hormone-Binding Globulin

Identifiers

PMID19808850
PMCPMC2775642
OpenAlexW2092305874

What OpenQuestion holds

Textmetadata
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.