Evidence map›Paper›PMID 33732462›Full record

ReviewEvolution, medicine, and public health2021

Conflicts over calcium and the treatment of COVID-19.

Bernard Crespi, Joe Alcock

Open access · goldAbstract readReview
In one paragraph

Review in Evolution, medicine, and public health, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed, 3 pooled it
1.2field-weighted citation impact, top 11% 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

30 citing papers in PubMed, 3 syntheses or guidelines pooled it, 62 citations in OpenAlex.

  1. Pooled it
  2. Clinical outcomes of hypertensive patients with COVID-19 receiving calcium channel blockers: a systematic review and meta-analysis.Hypertension research : official journal of the Japanese Society of Hypertension · 2022
    Pooled it
  3. Pooled it
  4. Article
  5. Review
  6. Article
  7. Article
  8. The necessity of investigations to clarify sex and racial disparities in pathophysiology of Long COVID.Hypertension research : official journal of the Japanese Society of Hypertension · 2024
    Article
  9. Review
  10. Review
  11. Review
  12. Article
  13. COVID-19 andEvolution, medicine, and public health · 2023
    Article
  14. Modulation of CaHandbook of experimental pharmacology · 2023
    Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. Article
  20. Review
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

2 authors at 2 institutions in 2 countries.

Bernard CrespiDepartment of Biological Sciences, Simon Fraser University, Burnaby, BC, Canada.
Joe AlcockDepartment of Emergency Medicine, University of New Mexico, Albuquerque, NM, USA.ORCID https://orcid.org/0000-0003-0807-164X
Simon Fraser University · CAUniversity of New Mexico · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Several recent studies have provided evidence that use of calcium channel blockers (CCBs), especially amlodipine and nifedipine, can reduce mortality from coronavirus disease 2019 (COVID-19). Moreover, hypocalcemia (a reduced level of serum ionized calcium) has been shown to be strongly positively associated with COVID-19 severity. Both effectiveness of CCBs as antiviral therapy, and positive associations of hypocalcemia with mortality, have been demonstrated for many other viruses as well. We evaluate these findings in the contexts of virus-host evolutionary conflicts over calcium metabolism, and hypocalcemia as either pathology, viral manipulation or host defence against pathogens. Considerable evidence supports the hypothesis that hypocalcemia represents a host defence. Indeed, hypocalcemia may exert antiviral effects in a similar manner as do CCBs, through interference with calcium metabolism in virus-infected cells. Prospective clinical studies that address the efficacy of CCBs and hypocalcemia should provide novel insights into the pathogenicity and treatment of COVID-19 and other viruses.

Indexed as

calciumconflictCOVID-19hypocalcemiaSARS-CoV-2

Identifiers

PMID33732462
PMCPMC7717197
OpenAlexW3107228882

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.