ArticleAntioxidants (Basel, Switzerland)2022
Dramatic Decrease of Vitamin K2 Subtype Menaquinone-7 in COVID-19 Patients.
Article in Antioxidants (Basel, Switzerland), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled 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.
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.
Who cites it
12 citing papers in PubMed, 1 synthesis or guideline pooled it, 18 citations in OpenAlex.
- Protein C and S activities in COVID-19: A systematic review and meta-analysis.Journal of thrombosis and thrombolysis · 2024Pooled it
- Exploring the link between fat-soluble vitamins and aging-associated immune system status: a literature review.Immunity & ageing : I & A · 2025Review
- Low vitamin K status is a potential risk factor for COVID-19 infected patients: a systematic review and meta-analysis.Frontiers in nutrition · 2025Review
- Vitamin K2 Protects Against SARS-CoV-2 Envelope Protein-Induced Cytotoxicity in Chronic Myeloid Leukemia Cells and Enhances Imatinib Activity.International journal of molecular sciences · 2024Article
- Association between serum levels of GDF-15, suPAR, PIVKA-II, sdLDL and clinical outcomes in hospitalized COVID-19 patients.Internal and emergency medicine · 2024Article
- Highly flexible cell membranes are the key to efficient production of lipophilic compounds.Journal of lipid research · 2024Review
- Vitamin K2 Supplementation in Hospitalised COVID-19 Patients: A Randomised Controlled Trial.Journal of clinical medicine · 2024Article
- Vitamin K: Infection, Inflammation, and Auto-Immunity.Journal of inflammation research · 2024Review
- Brij-58 supplementation enhances menaquinone-7 biosynthesis and secretion in Bacillus natto.Applied microbiology and biotechnology · 2023Article
- Strategies for the Management of Spike Protein-Related Pathology.Microorganisms · 2023Review
- The Role of Microbiota-Derived Vitamins in Immune Homeostasis and Enhancing Cancer Immunotherapy.Cancers · 2023Review
- Vitamin K2 (MK-7) attenuates LPS-induced acute lung injury via inhibiting inflammation, apoptosis, and ferroptosis.PloS one · 2023Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
8 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
PubMed holds no abstract for this paper.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.