Evidence map›Paper›PMID 29668046›Full record

ArticleEnvironmental and molecular mutagenesis2018

Black cohosh extracts and powders induce micronuclei, a biomarker of genetic damage, in human cells.

Stephanie L Smith-Roe, Carol D Swartz, Kim G Shepard, Steven M Bryce, Stephen D Dertinger, Suramya Waidyanatha, Grace E Kissling, Scott S Auerbach, Kristine L Witt

Open access · greenAbstract read
In one paragraph

Article in Environmental and molecular mutagenesis, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.6field-weighted citation impact, top 18% 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

9 citing papers in PubMed, 14 citations in OpenAlex.

  1. Review of black cohosh-induced toxicity and adverse clinical effects.Journal of environmental science and health. Part C, Toxicology and carcinogenesis · 2025
    Review
  2. Article
  3. Article
  4. Article
  5. Mechanistic Evaluation of Black Cohosh Extract-Induced Genotoxicity in Human Cells.Toxicological sciences : an official journal of the Society of Toxicology · 2021
    Article
  6. Article
  7. Evaluating Sufficient Similarity of Botanical Dietary Supplements: Combining Chemical and In Vitro Biological Data.Toxicological sciences : an official journal of the Society of Toxicology · 2019
    Article
  8. Article
  9. How similar is similar enough? A sufficient similarity case study with Ginkgo biloba extract.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

9 authors at 3 institutions in 1 country.

Stephanie L Smith-RoeDivision of the National Toxicology Program, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina.
Carol D SwartzGenetic and Molecular Toxicology Program, Integrated Laboratory Systems, Inc, Research Triangle Park, North Carolina.
Kim G ShepardGenetic and Molecular Toxicology Program, Integrated Laboratory Systems, Inc, Research Triangle Park, North Carolina.
Steven M BryceLitron Laboratories, Rochester, New York.
Stephen D DertingerLitron Laboratories, Rochester, New York.
Suramya WaidyanathaDivision of the National Toxicology Program, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina.
Grace E KisslingDivision of the National Toxicology Program, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina.
Scott S AuerbachDivision of the National Toxicology Program, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina.
Kristine L WittDivision of the National Toxicology Program, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina.
National Institute of Environmental Health Sciences · USIntegrated Laboratory Systems, Inc. · USLitron Laboratories (United States) · US

Funding

Toxicological Assessments for the National Toxicology ProgramZIAES103316 · NIEHS · NATIONAL INSTITUTE OF ENVIRONMENTAL HEALTH SCIENCES · PI WALKER, NIGEL J · 2016 to 2019
$31.9M
Biomolecular Screening and Alternative Approaches for the National Toxicology ProgramZIAES103318 · NIEHS · NATIONAL INSTITUTE OF ENVIRONMENTAL HEALTH SCIENCES · PI CASEY, WARREN · 2016 to 2021
$25.0M
Biomarker Matrix for Genotoxicity Mode of ActionR44ES024039 · NIEHS · LITRON LABORATORIES, LTD. · PI BEMIS, JEFFREY C, DERTINGER, STEPHEN D · 2014 to 2016
$1.1M
NIEHS NIH HHS HHSN273201300009CNIEHS NIH HHS HHSN273201400027CNIEHS NIH HHS R44 ES024039
6 · The paper itself

Abstract

Black cohosh extract (BCE) is a widely used dietary supplement marketed to women to alleviate symptoms of gynecological ailments, yet its toxicity has not been well characterized. The National Toxicology Program (NTP) previously reported significant increases in micronucleated erythrocytes in peripheral blood of female Wistar Han rats and B6C3F1/N mice administered 15-1,000 mg BCE/kg/day by gavage for 90 days. These animals also developed a dose-dependent nonregenerative macrocytic anemia characterized by clinical changes consistent with megaloblastic anemia. Both micronuclei (MN) and megaloblastic anemia can arise from disruption of the folate metabolism pathway. The NTP used in vitro approaches to investigate whether the NTP's test lot of BCE, BCEs from various suppliers, and root powders from BC and other cohosh species, were genotoxic in general, and to gain insight into the mechanism of action of BCE genotoxicity. Samples were tested in human TK6 lymphoblastoid cells using the In Vitro MicroFlow® MN assay. The NTP BCE and a BC extract reference material (XRM) were tested in the MultiFlow

Indexed as

Anemia, MegaloblasticAnimalsBiomarkersCell LineCimicifugaDietary SupplementsDNA DamageDose-Response Relationship, DrugErythrocytesFolic AcidHumansMiceMicronuclei, Chromosome-DefectiveMicronucleus TestsMutagensRatsBiomarkersFolic AcidMutagensActaea racemosaaneugendietary supplementfolic acidmicronucleus assay

Identifiers

PMID29668046
PMCPMC6031461
OpenAlexW2800029424

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.