Evidence map›Paper›PMID 34610433›Full record

ArticleInfection, genetics and evolution : journal of molecular epidemiology and evolutionary genetics in infectious diseases2021

Association of Vitamin D receptor gene polymorphisms and clinical/severe outcomes of COVID-19 patients.

Rasoul Abdollahzadeh, Mohammad Hossein Shushizadeh, Mina Barazandehrokh, Sepideh Choopani, Asaad Azarnezhad, Sahereh Paknahad, Maryam Pirhoushiaran, S Zahra Makani, Razieh Zarifian Yeganeh, Ahmed Al-Kateb and 1 more

Open access · greenAbstract readMulticenter Study
In one paragraph

Article in Infection, genetics and evolution : journal of molecular epidemiology and evolutionary genetics in infectious diseases, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed, 2 pooled it
6.4field-weighted citation impact, top 2% 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

31 citing papers in PubMed, 2 syntheses or guidelines pooled it, 55 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Review
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Tru9I Variant as a Novel Genetic Marker for Vitamin D Deficiency in Alopecia Areata.Clinical, cosmetic and investigational dermatology · 2025
    Article
  11. Article
  12. Article
  13. Review
  14. Article
  15. Observational
  16. Article
  17. Review
  18. Exploring the Influence ofJournal of personalized medicine · 2023
    Article
  19. The role of vitamin D receptor and IL-6 in COVID-19.Molecular genetics & genomic medicine · 2023
    Article
  20. 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

11 authors at 7 institutions in 2 countries.

Rasoul AbdollahzadehDepartment of Medical Genetics, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran. Electronic address: RASOUL142857@gmail.com.
Mohammad Hossein ShushizadehPasteur Medical Lab, Shush Danial, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
Mina BarazandehrokhFaculty of Advanced Sciences and Technology, Pharmaceutical Sciences Branch, Islamic Azad University (IAUPS), Tehran, Iran.
Sepideh ChoopaniTehran Medical Sciences, Islamic Azad University, Tehran, Iran.
Asaad AzarnezhadLiver and Digestive Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj, Iran. Electronic address: asad.azarnezhad@muk.ac.ir.
Sahereh PaknahadDepartment of Medical Genetics, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
Maryam PirhoushiaranDepartment of Medical Genetics, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
S Zahra MakaniBabol Razi Pathology and Genetic Laboratory, Babol, Iran.
Razieh Zarifian YeganehDepartment of Medical Genetics, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
Ahmed Al-KatebDepartment of Medical Genetics, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran. Electronic address: Ahmedalaakateb@gmail.com.
Roozbeh HeidarzadehpilehroodDepartment of Obstetrics & Gynaecology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Malaysia. Electronic address: roozbeh.heidarzadeh@gmail.com.
Tehran University of Medical Sciences · IRAhvaz Jundishapur University of Medical Sciences · IRBabol University of Medical Sciences · IRIslamic Azad University Medical Branch of Tehran · IRIslamic Azad University Pharmaceutical Sciences Branch · IRKurdistan University of Medical Sciences · IRUniversiti Putra Malaysia · MY

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionGrowing evidence documented the critical impacts of vitamin D (VD) in the prognosis of COVID-19 patients. The functions of VD are dependent on the vitamin D receptor (VDR) in the VD/VDR signaling pathway. Therefore, we aimed to assess the association of VDR gene polymorphisms with COVID-19 outcomes.

methodsIn the present study, eight VDR single nucleotide polymorphisms (SNPs) were genotyped by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) in 500 COVID-19 patients in Iran, including 160 asymptomatic, 250 mild/moderate, and 90 severe/critical cases. The association of these polymorphisms with severity, clinical outcomes, and comorbidities were evaluated through the calculation of the Odds ratio (OR).

resultsInterestingly, significant associations were disclosed for some of the SNP-related alleles and/or genotypes in one or more genetic models with different clinical data in COVID-19 patients. Significant association of VDR-SNPs with signs, symptoms, and comorbidities was as follows: ApaI with shortness of breath (P ˂ 0.001) and asthma (P = 0.034) in severe/critical patients (group III); BsmI with chronic renal disease (P = 0.010) in mild/moderate patients (group II); Tru9I with vomiting (P = 0.031), shortness of breath (P = 0.04), and hypertension (P = 0.030); FokI with fever and hypertension (P = 0.027) in severe/critical patients (group III); CDX2 with shortness of breath (P = 0.022), hypertension (P = 0.036), and diabetes (P = 0.042) in severe/critical patients (group III); EcoRV with diabetes (P ˂ 0.001 and P = 0.045 in mild/moderate patients (group II) and severe/critical patients (group III), respectively). However, the association of VDR TaqI and BglI polymorphisms with clinical symptoms and comorbidities in COVID-19 patients was not significant.

conclusionVDR gene polymorphisms might play critical roles in the vulnerability to infection and severity of COVID-19, probably by altering the risk of comorbidities. However, these results require further validation in larger studies with different ethnicities and geographical regions.

Indexed as

Polymorphism, Restriction Fragment LengthPolymorphism, Single NucleotideAdultAgedComorbidityCOVID-19Diabetes MellitusFemaleGenesGenetic Predisposition to DiseaseHumansHypertensionIranMaleMiddle AgedReceptors, CalcitriolReceptors, CalcitriolVDR protein, humanClinical outcomesCOVID-19Genetic predispositionSingle nucleotide polymorphisms (SNPs)Vitamin D receptor

Identifiers

PMID34610433
PMCPMC8487094
OpenAlexW3202770353

What OpenQuestion holds

Textmetadata
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.