Evidence map›Paper›PMID 21514315›Full record

ArticleToxicology and applied pharmacology2011

Methoxychlor reduces estradiol levels by altering steroidogenesis and metabolism in mouse antral follicles in vitro.

Mallikarjuna S Basavarajappa, Zelieann R Craig, Isabel Hernández-Ochoa, Tessie Paulose, Traci C Leslie, Jodi A Flaws

Abstract read
In one paragraph

Article in Toxicology and applied pharmacology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
3.6field-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

19 citing papers in PubMed, 61 citations in OpenAlex.

  1. Disruption ofAnimals : an open access journal from MDPI · 2026
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  19. THE EFFECTS OF ENDOCRINE DISRUPTORS ON FEMALE GONADAL AXIS: AN UPDATE.Acta endocrinologica (Bucharest, Romania : 2005)
    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

6 authors at 1 institution in 1 country.

Mallikarjuna S BasavarajappaComparative Biosciences, University of Illinois at Urbana-Champaign, Urbana, IL 61802, USA.
Zelieann R Craig
Isabel Hernández-Ochoa
Tessie Paulose
Traci C Leslie
Jodi A Flaws
University of Illinois Urbana-Champaign · US

Funding

Endocrine disrupting chemicals and ovotoxicityR01ES019178 · NIEHS · UNIVERSITY OF ILLINOIS AT URBANA-CHAMPAIGN · PI FLAWS, JODI A. · 2010 to 2014
$1.9M
Methoxychlor-Induced Ovarian ToxicityR01ES012893 · NIEHS · UNIVERSITY OF MARYLAND BALTIMORE · PI FLAWS, JODI A · 2005 to 2007
$1.1M
NIEHS NIH HHS R01 ES012893NIEHS NIH HHS R01ES012893NIEHS NIH HHS R01 ES019178NIEHS NIH HHS R01ES019178
6 · The paper itself

Abstract

The organochlorine pesticide methoxychlor (MXC) is a known endocrine disruptor that affects adult rodent females by causing reduced fertility, persistent estrus, and ovarian atrophy. Since MXC is also known to target antral follicles, the major producer of sex steroids in the ovary, the present study was designed to test the hypothesis that MXC decreases estradiol (E₂) levels by altering steroidogenic and metabolic enzymes in the antral follicles. To test this hypothesis, antral follicles were isolated from CD-1 mouse ovaries and cultured with either dimethylsulfoxide (DMSO) or MXC. Follicle growth was measured every 24 h for 96 h. In addition, sex steroid hormone levels were measured using enzyme-linked immunosorbent assays (ELISA) and mRNA expression levels of steroidogenic enzymes as well as the E₂ metabolic enzyme Cyp1b1 were measured using qPCR. The results indicate that MXC decreased E₂, testosterone, androstenedione, and progesterone (P₄) levels compared to DMSO. In addition, MXC decreased expression of aromatase (Cyp19a1), 17β-hydroxysteroid dehydrogenase 1 (Hsd17b1), 17α-hydroxylase/17,20-lyase (Cyp17a1), 3β hydroxysteroid dehydrogenase 1 (Hsd3b1), cholesterol side-chain cleavage (Cyp11a1), steroid acute regulatory protein (Star), and increased expression of Cyp1b1 enzyme levels. Thus, these data suggest that MXC decreases steroidogenic enzyme levels, increases metabolic enzyme expression and this in turn leads to decreased sex steroid hormone levels.

Indexed as

17-Hydroxysteroid DehydrogenasesAnimalsAromataseCells, CulturedEstradiolFemaleGonadal Steroid HormonesInsecticidesMethoxychlorMiceOvarian FolliclePhosphoproteinsSteroidogenic Acute Regulatory Protein17-Hydroxysteroid Dehydrogenases3 (or 17)-beta-hydroxysteroid dehydrogenaseAromataseEstradiolGonadal Steroid HormonesInsecticidesMethoxychlorPhosphoproteinsSteroidogenic Acute Regulatory Protein

Identifiers

PMID21514315
PMCPMC3103614
OpenAlexW2070328438

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.