Evidence map›Paper›PMID 35016683›Full record

ArticleBMC medical genomics2022

Association of SMAD7 genetic markers and haplotypes with colorectal cancer risk.

Maryam Alidoust, Leila Hamzehzadeh, Asma Khorshid Shamshiri, Fahimeh Afzaljavan, Mohammad Amin Kerachian, Azar Fanipakdel, Seyed Amir Aledavood, Abolghasem Allahyari, Alireza Bari, Hooman Moosanen Mozaffari and 2 more

Open access · goldAbstract read
In one paragraph

Article in BMC medical genomics, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
1.5field-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

8 citing papers in PubMed, 9 citations in OpenAlex.

  1. TGF-β Pathway-Based Polygenic Risk Score Modifies the Association between Red Meat Intake and Colorectal Cancer Risk: Application of a Novel Pathway-Based PRS Method.Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology · 2026
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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

12 authors at 2 institutions in 1 country.

Maryam AlidoustDepartment of Medical Genetics and Molecular Medicine, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
Leila Hamzehzadeh *Department of Medical Genetics and Molecular Medicine, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
Asma Khorshid Shamshiri *Department of Medical Genetics and Molecular Medicine, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
Fahimeh Afzaljavan *Department of Medical Genetics and Molecular Medicine, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
Mohammad Amin KerachianDepartment of Medical Genetics and Molecular Medicine, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
Azar FanipakdelCancer Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
Seyed Amir AledavoodCancer Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
Abolghasem AllahyariHematology and Oncology Department, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
Alireza BariHematology and Oncology Department, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
Hooman Moosanen MozaffariDepartment of Gastroenterology and Hepatology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
Ladan Goshayeshi *Department of Gastroenterology and Hepatology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran. GoshayeshiL@mums.ac.ir.
Alireza PasdarDepartment of Medical Genetics and Molecular Medicine, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran. a.pasdar@abdn.ac.uk.
Mashhad University of Medical Sciences · IRImam Reza Hospital · IR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeColorectal cancer (CRC) is one of the common cancers with a high mortality rate worldwide. In Iran, there has been a trend of increased incidence of colorectal cancer in the last three decades that necessitates the early diagnosis. Genetic factors have an influential role in its etiology along with the conventional risk factors such as age, diet, and lifestyle. Results from GWAS have shown significant associations between SMAD7 gene variants and risk of CRC. This study aimed to assess the association of certain polymorphisms as well as haplotypes of this gene and risk of colorectal cancer. METHODS AND MATERIALS: This study was designed as a case-control association study. After obtaining ethical approval and informed consent, blood samples from 209 patients with colorectal cancer were collected and DNA was extracted. Four variants: rs4939827, rs34007497, rs8085824 and rs8088297 were genotyped using ARMS-PCR method.

resultsSMAD7 rs4939827 in the recessive and co-dominant models was associated with colorectal cancer risk [TT/CT + CC: OR = 2.90, 95%CI (1.38-6.09), p = 0.005; CC + TT/CT: OR = 1.66, 95%CI (1.00-2.75), p = 0.01]. Haplotype analysis indicated that some SNP combinations including two for-SNPs haplotypes of T-T-C-C and T-C-C-A were significantly associated with CRC risk.

conclusionBased on the identified association of SMAD7 gene variations and haplotypes with colorectal cancer risk in our population, genetic variations in this gene region may have a role in CRC development. This data may shed light on the genetic predisposition of CRC which involves different pathways including TGF-β.

Indexed as

Colorectal NeoplasmsCase-Control StudiesGenetic MarkersGenetic Predisposition to DiseaseGenotypeHaplotypesHumansPolymorphism, Single NucleotideRisk FactorsSmad7 ProteinGenetic MarkersSmad7 ProteinSMAD7 protein, humanAssociation studyColorectal cancerGWASPolymorphismsSMAD7

Identifiers

PMID35016683
PMCPMC8753827
OpenAlexW4206706494

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Registered trials

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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.