Evidence map›Paper›PMID 23322818›Full record

Trial reportThe Journal of clinical endocrinology and metabolism2013

Effects of estrogen with micronized progesterone on cortical and trabecular bone mass and microstructure in recently postmenopausal women.

Joshua N Farr, Sundeep Khosla, Yuko Miyabara, Virginia M Miller, Ann E Kearns

Open access · bronzeAbstract readRandomized Controlled Trial
In one paragraph

Trial report in The Journal of clinical endocrinology and metabolism, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
4.0field-weighted citation impact, top 7% 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

21 citing papers in PubMed, 48 citations in OpenAlex.

  1. Lessons from KEEPS: the Kronos Early Estrogen Prevention Study.Climacteric : the journal of the International Menopause Society · 2021
    Trial
  2. Trial
  3. Effects of Estrogen Replacement on Bone Geometry and Microarchitecture in Adolescent and Young Adult Oligoamenorrheic Athletes: A Randomized Trial.Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research · 2020
    Trial
  4. Trial
  5. Endothelial function in women of the Kronos Early Estrogen Prevention Study.Climacteric : the journal of the International Menopause Society · 2015
    Trial
  6. Article
  7. Article
  8. Article
  9. Review
  10. Review
  11. Simulated effects of early menopausal bone mineral density preservation on long-term fracture risk: a feasibility study.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2021
    Article
  12. Article
  13. Review
  14. Article
  15. Hip fractures in the elderly without osteoporosis.Journal of frailty, sarcopenia and falls · 2018
    Article
  16. An update on hormone therapy in postmenopausal women: mini-review for the basic scientist.American journal of physiology. Heart and circulatory physiology · 2017
    Review
  17. Article
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 2 countries.

Joshua N FarrDivision of Endocrinology, Mayo Clinic, 200 First Street SW, Rochester, Minnesota 55905, USA.
Sundeep Khosla
Yuko Miyabara
Virginia M Miller
Ann E Kearns
Mayo Clinic · USTokyo Women's Medical University Hospital · JP

Funding

Mayo Clinic Center for Translational Science ActivitiesUL1TR000135 · NCATS · MAYO CLINIC ROCHESTER · PI KHOSLA, SUNDEEP · 2012 to 2015
$41.2M
SEX STEROIDS, GROWTH FACTORS, &BONE CELL FUNCTIONP01AG004875 · NIA · MAYO CLINIC ROCHESTER · PI KHOSLA, SUNDEEP · 1985 to 2019
$30.8M
EPIDEMIOLOGY OF AGE-RELATED BONE LOSS, &FRACTURESR01AR027065 · NIAMS · MAYO CLINIC ROCHESTER · PI AMIN, SHREYASEE, KHOSLA, SUNDEEP · 1986 to 2020
$14.9M
DIABETES AND METABOLISMT32DK007352 · NIDDK · MAYO CLINIC ROCHESTER · PI MICHAEL D. JENSEN · 1986 to 2026
$9.4M
NCATS NIH HHS UL1 TR000135NIAMS NIH HHS R01 AR027065NIA NIH HHS P01 AG004875NIDDK NIH HHS T32 DK007352
6 · The paper itself

Abstract

contextIn women, cortical bone mass decreases significantly at menopause. By contrast, loss of trabecular bone begins in the third decade and accelerates after menopause.

objectiveThe aim of the study was to investigate the effects of estrogen on cortical and trabecular bone.

designThe Kronos Early Estrogen Prevention Study is a double-blind, randomized, placebo-controlled trial of menopausal hormone treatment (MHT) in women, enrolled within 6-36 months of their final menstrual period.

settingThe study was conducted at the Mayo Clinic, Rochester, Minnesota.

interventionSubjects were treated with placebo (n = 31), or .45 mg/d conjugated equine estrogens (n = 20), or transdermal 50 μg/d 17β-estradiol (n = 25) with pulsed micronized progesterone.

main outcome measuresCortical and trabecular microarchitecture at the distal radius was assessed by high-resolution peripheral quantitative computed tomography.

resultsAt the distal radius, cortical volumetric bone mineral density (vBMD) decreased, and cortical porosity increased in the placebo group; MHT prevented these changes. By contrast, MHT did not prevent decreases in trabecular microarchitecture at the radius. However, MHT prevented decreases in trabecular vBMD at the thoracic spine (assessed in a subset of subjects; n = 51). These results indicate that MHT prevents deterioration in radial cortical vBMD and porosity in recently menopausal women.

conclusionThe maintenance of cortical bone in response to estrogen likely has important clinical implications because cortical bone morphology plays an important role in bone strength. However, effects of MHT on trabecular bone at the radius differ from those at the thoracic spine. Underlying mechanisms for these site-specific effects of MHT on cortical vs trabecular bone require further investigation.

Indexed as

Bone DensityDouble-Blind MethodDrug Administration ScheduleEstradiolEstrogensEstrogens, Conjugated (USP)FemaleHumansMenopauseMiddle AgedOsteoporosis, PostmenopausalProgesteroneRadiographyRadiusEstradiolEstrogensEstrogens, Conjugated (USP)Progesterone

Identifiers

PMID23322818
PMCPMC3565106
OpenAlexW2018515170

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.