Evidence map›Paper›PMID 32503816›Full record

ReviewIn vivo (Athens, Greece)2020

Oral Methioninase for Covid-19 Methionine-restriction Therapy.

Robert M Hoffman, Qinghong Han

Open access · diamondAbstract readReview
In one paragraph

Review in In vivo (Athens, Greece), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
2.7field-weighted citation impact, top 10% 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

9 citing papers in PubMed, 25 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Article
  6. Article
  7. An Altered Metabolism in Leukocytes ShowingFrontiers in molecular biosciences · 2022
    Article
  8. Article
  9. 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 1 institution in 1 country.

Robert M HoffmanAntiCancer, Inc, San Diego, CA, U.S.A. all@anticancer.com.
Qinghong HanAntiCancer, Inc, San Diego, CA, U.S.A.
AntiCancer (United States) · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The Covid-19 pandemic is a world-wide crisis without an effective therapy. While most approaches to therapy are using repurposed drugs that were developed for other diseases, it is thought that targeting the biology of the SARS-CoV-2 virus, which causes Covid-19, can result in an effective therapeutic treatment. The coronavirus RNA cap structure is methylated by two viral methyltransferases that transfer methyl groups from S-adenosylmethionine (SAM). The proper methylation of the virus depends on the level of methionine in the host to form SAM. Herein, we propose to restrict methionine availability by treating the patient with oral recombinant methioninase, aiming to treat Covid-19. By restricting methionine we not only interdict viral replication, which depends on the viral RNA cap methyaltion, but also inhibit the proliferation of the infected cells, which have an increased requirement for methionine. Most importantly, the virally-induced T-cell- and macrophage-mediated cytokine storm, which seems to be a significant cause for Covid-19 deaths, can also be inhibited by restricting methionine, since T-cell and macrophrage activation greatly increases the methionine requirement for these cells. The evidence reviewed here suggests that oral recombinant methioninase could be a promising treatment for coronavirus patients.

Indexed as

Administration, OralAntiviral AgentsBacterial ProteinsBetacoronavirusCarbon-Sulfur LyasesClinical Trials as TopicCoronavirus InfectionsCOVID-19Cytokine Release SyndromeHumansLymphocyte ActivationMacrophage ActivationMeta-Analysis as TopicMethionineMethylationPandemicsAntiviral AgentsBacterial ProteinsCarbon-Sulfur LyasesL-methionine gamma-lyaseMethionineRecombinant ProteinsRNA CapsRNA, ViralS-AdenosylmethionineCoronavirusCovid-19methioninasemethionine restrictionmethylationmethyltransferaseRNA genomeS-adenosylmethionineSARs-CoV-2

Identifiers

PMID32503816
PMCPMC8378026
OpenAlexW3034129668

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.