Evidence map›Paper›PMID 33635516›Full record

ArticleBiological trace element research2022

Multivariate Investigation of Toxic and Essential Metals in the Serum from Various Types and Stages of Colorectal Cancer Patients.

Mian H R Mahmood, Muhammad Abdul Qayyum, Farhan Yaseen, Tahir Farooq, Zahid Farooq, Muhammad Yaseen, Ahmad Irfan, Khawaja Muddassir, Muhammad Nadeem Zafar, Muhammad Tariq Qamar and 2 more

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Article in Biological trace element research, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 2 pooled it
1.3field-weighted citation impact, top 24% 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

10 citing papers in PubMed, 2 syntheses or guidelines pooled it, 19 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
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  4. Review
  5. Article
  6. Zinc, copper, copper-to-zinc ratio, and other biometals in blood serum and tumor tissue of patients with colorectal cancer.Biometals : an international journal on the role of metal ions in biology, biochemistry, and medicine · 2025
    Article
  7. Article
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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 8 institutions in 4 countries.

Mian H R MahmoodDepartment of Chemistry, Division of Science & Technology, University of Education, Lahore, Pakistan. mianhrm01@ue.edu.pk.ORCID http://orcid.org/0000-0002-8364-1553
Muhammad Abdul QayyumDepartment of Chemistry, Division of Science & Technology, University of Education, Lahore, Pakistan.
Farhan YaseenDepartment of Chemistry, Division of Science & Technology, University of Education, Lahore, Pakistan.
Tahir FarooqDepartment of Applied Chemistry, Government College University, Faisalabad, Pakistan.
Zahid FarooqDepartment of Physics, Division of Science & Technology, University of Education, Lahore, Pakistan.
Muhammad YaseenDepartment of Chemistry, Division of Science & Technology, University of Education, Lahore, Pakistan.
Ahmad IrfanResearch Center for Advanced Materials Science, King Khalid University, P.O. Box 9004, Abha, 61413, Saudi Arabia.
Khawaja MuddassirDivision of Pulmonary Critical Care and Sleep Medicine, University of Tennessee Health Science Center, Memphis, TN, 38163, USA.
Muhammad Nadeem ZafarDepartment of Chemistry, University of Gujrat, Gujrat, 50700, Pakistan.
Muhammad Tariq QamarDepartment of Chemistry, Forman Christian College (A Chartered University), Ferozepur Road, Lahore, 54600, Pakistan.
Arshad Mehmood AbbasiDepartment of Environmental Sciences, COMSATS University Islamabad, Abbottabad Campus, Abbottabad, 22060, Pakistan.
Hai-Yang LiuDepartment of Chemistry, South China University of Technology, Guangzhou, 510641, China.
University of Okara · PKCOMSATS University Islamabad · PKForman Christian College · PKGovernment College University, Faisalabad · PKKing Khalid University · SASouth China University of Technology · CNUniversity of Gujrat · PKUniversity of Tennessee Health Science Center · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Colorectal cancer (CRC) is currently one of the most frequent malignant neoplasms, ranking 3rd in incidence and 2nd in mortality both in the USA and across the world. The pathogenesis of CRC is a complex interaction between genetic susceptibility and environmental factors such as exposure to metals. Therefore, the present study was intended to assess the imbalances in the concentrations of selected essential/toxic elements (Pb, Cr, Fe, Zn, As, Cd, Cu, Se, Ni, and Hg) in the serum of newly diagnosed colorectal carcinoma patients (n = 165) in comparison with counterpart controls (n = 151) by atomic absorption spectrometry after wet-acid digestion method. Serum carcinoembryonic antigen (CEA) of the CRC patients was determined using immunoradiometric method. Body mass index (BMI) which is an established risk factor for CRC was also calculated for patients and healthy controls. Conversely, average Ni (2.721 μg/g), Cd (0.563 μg/g), As (0.539 μg/g), and Pb (1.273 μg/g) levels were significantly elevated in the serum of CRC patients compared to the healthy donors, while the average Se (7.052 μg/g), Fe (15.67 μg/g), Cu (2.033 μg/g), and Zn (8.059 μg/g) concentrations were elevated in controls. The correlation coefficients between the elements in the cancerous patients demonstrated significantly dissimilar communal relationships compared with the healthy subjects. Significant differences in the elemental levels were also showed for CRC types (primary colorectal lymphoma, gastrointestinal stromal tumor, and adenocarcinoma) and CRC stages (stage-I, stage-II, stage-III, and stage-IV) among the patients. Majority of the elements demonstrated perceptible disparities in their levels based on dietary, habitat, gender, and smoking habits of the malignant patients and healthy subjects. Multivariate methods revealed noticeably divergent apportionment among the toxic/essential elements in the cancerous patients than the healthy counterparts. Overall, the study showed significantly divergent distribution and associations of the essential and toxic elemental levels in the serum of the CRC patients in comparison with the healthy donors.

Indexed as

Colorectal NeoplasmsTrace ElementsHumansMetalsSmokingSpectrophotometry, AtomicMetalsTrace ElementsColorectal cancerMetalsPakistanSerumStatistical analysisTypes/stages

Identifiers

PMID33635516
OpenAlexW3133224164

What OpenQuestion holds

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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.