Evidence map›Paper›PMID 25804611›Full record

ArticleCancer prevention research (Philadelphia, Pa.)2015

Effects of metformin, buformin, and phenformin on the post-initiation stage of chemically induced mammary carcinogenesis in the rat.

Zongjian Zhu, Weiqin Jiang, Matthew D Thompson, Dimas Echeverria, John N McGinley, Henry J Thompson

Open access · greenAbstract read
In one paragraph

Article in Cancer prevention research (Philadelphia, Pa.), 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
2.0field-weighted citation impact, top 13% 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

18 citing papers in PubMed, 27 citations in OpenAlex.

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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

6 authors at 2 institutions in 1 country.

Zongjian ZhuCancer Prevention Laboratory, Colorado State University, Fort Collins, Colorado.
Weiqin JiangCancer Prevention Laboratory, Colorado State University, Fort Collins, Colorado.
Matthew D ThompsonCancer Prevention Fellowship Program, Division of Cancer Prevention, National Cancer Institute, Bethesda, Maryland.
Dimas EcheverriaCancer Prevention Laboratory, Colorado State University, Fort Collins, Colorado.
John N McGinleyCancer Prevention Laboratory, Colorado State University, Fort Collins, Colorado.
Henry J ThompsonCancer Prevention Laboratory, Colorado State University, Fort Collins, Colorado. henry.thompson@colostate.edu.
Colorado State University · USNational Cancer Institute · US

Funding

EXERCISE AND BREAST CANCER PREVENTIONR01CA052626 · NCI · COLORADO STATE UNIVERSITY-FORT COLLINS · PI THOMPSON, HENRY J · 1990 to 2013
$3.8M
NCI NIH HHS R01 CA052626
6 · The paper itself

Abstract

Metformin is a widely prescribed drug for the treatment of type II diabetes. Although epidemiologic data have provided a strong rationale for investigating the potential of this biguanide for use in cancer prevention and control, uncertainty exists whether metformin should be expected to have an impact in nondiabetic patients. Furthermore, little attention has been given to the possibility that other biguanides may have anticancer activity. In this study, the effects of clinically relevant doses of metformin (9.3 mmol/kg diet), buformin (7.6 mmol/kg diet), and phenformin (5.0 mmol/kg diet) were compared with rats fed control diet (AIN93-G) during the post-initiation stage of 1-methyl-1-nitrosourea-induced (50 mg/kg body weight) mammary carcinogenesis (n = 30/group). Plasma, liver, skeletal muscle, visceral fat, mammary gland, and mammary carcinoma concentrations of the biguanides were determined. In comparison with the control group, buformin decreased cancer incidence, multiplicity, and burden, whereas metformin and phenformin had no statistically significant effect on the carcinogenic process relative to the control group. Buformin did not alter fasting plasma glucose or insulin. Within mammary carcinomas, evidence was obtained that buformin treatment perturbed signaling pathways related to energy sensing. However, further investigation is needed to determine the relative contributions of host systemic and cell autonomous mechanisms to the anticancer activity of biguanides such as buformin.

Indexed as

AnimalsApoptosisBlotting, WesternBuforminCarcinogensCell ProliferationCell Transformation, NeoplasticFemaleHypoglycemic AgentsMammary Neoplasms, ExperimentalMetforminPhenforminRatsRats, Sprague-DawleyBuforminCarcinogensHypoglycemic AgentsMetforminPhenformin

Identifiers

PMID25804611
PMCPMC4452421
OpenAlexW2315636604

What OpenQuestion holds

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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.