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Journal ArticleDOI

Functional Role of Dietary Intervention to Improve the Outcome of COVID-19: A Hypothesis of Work.

TL;DR: Considering that the COVID-19 infection can generate a mild or highly acute respiratory syndrome with a consequent release of pro-inflammatory cytokines, including IL-6 and TNF-α, a dietary regimen modification in order to improve the levels of adiponectin could be very useful both to prevent the infection and to take care of patients, improving their outcomes.
Abstract: Background: On the 31 December 2019, the World Health Organization (WHO) was informed of a cluster of cases of pneumonia of unknown origin detected in Wuhan City, Hubei Province, China. The infection spread first in China and then in the rest of the world, and on the 11th of March, the WHO declared that COVID-19 was a pandemic. Taking into consideration the mortality rate of COVID-19, about 5–7%, and the percentage of positive patients admitted to intensive care units being 9–11%, it should be mandatory to consider and take all necessary measures to contain the COVID-19 infection. Moreover, given the recent evidence in different hospitals suggesting IL-6 and TNF-α inhibitor drugs as a possible therapy for COVID-19, we aimed to highlight that a dietary intervention could be useful to prevent the infection and/or to ameliorate the outcomes during therapy. Considering that the COVID-19 infection can generate a mild or highly acute respiratory syndrome with a consequent release of pro-inflammatory cytokines, including IL-6 and TNF-α, a dietary regimen modification in order to improve the levels of adiponectin could be very useful both to prevent the infection and to take care of patients, improving their outcomes.
Citations
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Journal ArticleDOI
TL;DR: Flavonoids and their derivative may represent target compounds to be tested in future clinical trials to enrich the drug arsenal against coronavirus infections.

222 citations


Cites background from "Functional Role of Dietary Interven..."

  • ...reducing inflammation and blocking nuclear NFκB translocation [75]....

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  • ...In fact, Messina et al. (2020) suggested that dietary intervention may ameliorate COVID-19 outcomes and polyphenols/flavonoids can contribute to these effects reducing inflammation and blocking nuclear NF-κB translocation [75]....

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Journal ArticleDOI
TL;DR: Computational methods and laboratory studies support the need to undertake apposite preclinical, epidemiological, and experimental studies on the potential benefits of citrus fruit components for the prevention of infectious diseases, including COVID-19.
Abstract: Among the many approaches to Coronavirus disease 2019 (COVID-19) prevention, the possible role of nutrition has so far been rather underestimated Foods are very rich in substances, with a potential beneficial effect on health, and some of these could have an antiviral action or be important in modulating the immune system and in defending cells from the oxidative stress associated with infection This short review draws the attention on some components of citrus fruits, and especially of the orange (Citrus sinensis), well known for its vitamin and flavonoid content Among the flavonoids, hesperidin has recently attracted the attention of researchers, because it binds to the key proteins of the Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Several computational methods, independently applied by different researchers, showed that hesperidin has a low binding energy, both with the coronavirus "spike" protein, and with the main protease that transforms the early proteins of the virus (pp1a and ppa1b) into the complex responsible for viral replication The binding energy of hesperidin to these important components is lower than that of lopinavir, ritonavir, and indinavir, suggesting that it could perform an effective antiviral action Furthermore, both hesperidin and ascorbic acid counteract the cell damaging effects of the oxygen free radicals triggered by virus infection and inflammation There is discussion about the preventive efficacy of vitamin C, at the dose achievable by the diet, but recent reviews suggest that this substance can be useful in the case of strong immune system burden caused by viral disease Computational methods and laboratory studies support the need to undertake apposite preclinical, epidemiological, and experimental studies on the potential benefits of citrus fruit components for the prevention of infectious diseases, including COVID-19

118 citations


Cites background from "Functional Role of Dietary Interven..."

  • ...The role of dietary interventions is much more difficult to assess and any suggestion at present is just speculative or, at best, a working hypothesis [80]....

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Journal ArticleDOI
TL;DR: Although the inflammatory resolution improved by EPA and DHA could contribute to the recovery of patients infected with SARS-CoV-2, Omega-3 fatty acids supplementation cannot be recommended before randomized and controlled trials are carried out.

110 citations

Journal ArticleDOI
TL;DR: Because they are well-known metabolic precursors of specialized pro-resolving lipid mediators (SPMs), omega-3 long-chain polyunsaturated fatty acids (omega-3 LC-PUFAs) could help improve the resolution of the inflammatory balance, limiting therefore the level and duration of the critical inflammatory period.

98 citations


Cites background from "Functional Role of Dietary Interven..."

  • ...Therefore, the nutritional status for PUFAs is particularly important in tissue inflammatory status and overall immune response [7,8]....

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Journal ArticleDOI
TL;DR: Current evidence concerning the links among gut microbiota, n-3 PUFAs intake, and human inflammatory disease is discussed.
Abstract: Studies over several decades have documented the beneficial actions of n-3 polyunsaturated fatty acids (PUFAs), which are plentiful in fish oil, in different disease states. Mechanisms responsible for the efficacy of n-3 PUFAs include: (1) Reduction of triglyceride levels; (2) anti-arrhythmic and antithrombotic effects, and (3) resolution of inflammatory processes. The human microbiota project and subsequent studies using next-generation sequencing technology have highlighted that thousands of different microbial species are present in the human gut, and that there has been a significant variability of taxa in the microbiota composition among people. Several factors (gestational age, mode of delivery, diet, sanitation and antibiotic treatment) influence the bacterial community in the human gastrointestinal tract, and among these diet habits play a crucial role. The disturbances in the gut microbiota composition, i.e., gut dysbiosis, have been associated with diseases ranging from localized gastrointestinal disorders to neurologic, respiratory, metabolic, ocular, and cardiovascular illnesses. Many studies have been published about the effects of probiotics and prebiotics on the gut microbiota/microbioma. On the contrary, PUFAs in the gut microbiota have been less well defined. However, experimental studies suggested that gut microbiota, n-3 PUFAs, and host immune cells work together to ensure the intestinal wall integrity. This review discussed current evidence concerning the links among gut microbiota, n-3 PUFAs intake, and human inflammatory disease.

97 citations

References
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Journal ArticleDOI
TL;DR: The epidemiological, clinical, laboratory, and radiological characteristics and treatment and clinical outcomes of patients with laboratory-confirmed 2019-nCoV infection in Wuhan, China, were reported.

36,578 citations


"Functional Role of Dietary Interven..." refers background in this paper

  • ...The recent reports about the pathogenesis of COVID-19 suggested that one of the most important consequences of this infection is the cytokine storm syndrome [95], which could be stri tly link d with coagulopathy, generating acute pulmonary emb lism caus d by in-situ thrombosis [96,97]....

    [...]

  • ...The recent reports about the pathogenesis of COVID-19 suggested that one of the most important consequences of this infection is the cytokine storm syndrome [95], which could be strictly linked with coagulopathy, generating acute pulmonary embolism caused by in-situ thrombosis [96,97]....

    [...]

Journal ArticleDOI
TL;DR: Recent advances that have been made by research into the role of TLR biology in host defense and disease are described.
Abstract: The discovery of Toll-like receptors (TLRs) as components that recognize conserved structures in pathogens has greatly advanced understanding of how the body senses pathogen invasion, triggers innate immune responses and primes antigen-specific adaptive immunity. Although TLRs are critical for host defense, it has become apparent that loss of negative regulation of TLR signaling, as well as recognition of self molecules by TLRs, are strongly associated with the pathogenesis of inflammatory and autoimmune diseases. Furthermore, it is now clear that the interaction between TLRs and recently identified cytosolic innate immune sensors is crucial for mounting effective immune responses. Here we describe the recent advances that have been made by research into the role of TLR biology in host defense and disease.

7,494 citations

Journal ArticleDOI
TL;DR: Re-analysis of data from a phase 3 randomised controlled trial of IL-1 blockade (anakinra) in sepsis, showed significant survival benefit in patients with hyperinflammation, without increased adverse events.

7,493 citations


"Functional Role of Dietary Interven..." refers background in this paper

  • ...Therefore, a great number of clinical trials are ongoing to define a useful therapy to attenuate cytokine storms [98]....

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Journal ArticleDOI
TL;DR: O surto do novo coronavírus (COVID-19) em Wuhan, China, iniciado em dezembro de 2019, evoluiu para se tornar uma pandemia global A.

6,850 citations


"Functional Role of Dietary Interven..." refers background in this paper

  • ...The biopsy samples were taken from the lung; the histological examination showed bilateral diffuse alveolar damage with cellular fibromyxoid exudates [6]....

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  • ...During coronavirus infection, it was observed that the lungs increased in weight, with a mild pleural effusion of clear serous fluid, named pulmonary edema, and extensive consolidation [6,7]....

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Journal ArticleDOI
TL;DR: The findings reinforce the recommendation to strictly apply pharmacological thrombosis prophylaxis in all COVID-19 patients admitted to the ICU, and are strongly suggestive of increasing the prophYLaxis towards high-prophylactic doses, even in the absence of randomized evidence.

3,886 citations


"Functional Role of Dietary Interven..." refers background in this paper

  • ...The recent reports about the pathogenesis of COVID-19 suggested that one of the most important consequences of this infection is the cytokine storm syndrome [95], which could be stri tly link d with coagulopathy, generating acute pulmonary emb lism caus d by in-situ thrombosis [96,97]....

    [...]

  • ...The recent reports about the pathogenesis of COVID-19 suggested that one of the most important consequences of this infection is the cytokine storm syndrome [95], which could be strictly linked with coagulopathy, generating acute pulmonary embolism caused by in-situ thrombosis [96,97]....

    [...]

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