COVID-19: The Inflammation Link and the Role of Nutrition in Potential Mitigation
1
Department of Biological Sciences, University of Limerick, Limerick V94 T9PX, Ireland
2
Health Research Institute, University of Limerick, Limerick V94 T9PX, Ireland
3
Institute for Translational Medicine and
Therapeutics, Perelman School of Medicine, University of Pennsylvania,
Philadelphia, PA 19104-5158, USA
4
Department of Physical Education and Sport Sciences, University of Limerick, Limerick V94 T9PX, Ireland
Abstract
The novel coronavirus disease (COVID-19) pandemic caused by severe acute
respiratory syndrome coronavirus 2 (SARS-CoV-2) has engulfed the world,
affecting more than 180 countries. As a result, there has been
considerable economic distress globally and a significant loss of life.
Sadly, the vulnerable and immunocompromised in our societies seem to be
more susceptible to severe COVID-19 complications.
Global public health
bodies and governments have ignited strategies and issued advisories on
various handwashing and hygiene guidelines, social distancing
strategies, and, in the most extreme cases, some countries have adopted
“stay in place” or lockdown protocols to prevent COVID-19 spread.
Notably, there are several significant risk factors for severe COVID-19
infection.
These include the presence of poor nutritional status and
pre-existing noncommunicable diseases (NCDs) such as diabetes mellitus,
chronic lung diseases, cardiovascular diseases (CVD), obesity, and
various other diseases that render the patient immunocompromised.
These
diseases are characterized by systemic inflammation, which may be a
common feature of these NCDs, affecting patient outcomes against
COVID-19.
In this review, we discuss some of the anti-inflammatory
therapies that are currently under investigation intended to dampen the
cytokine storm of severe COVID-19 infections. Furthermore, nutritional
status and the role of diet and lifestyle is considered, as it is known
to affect patient outcomes in other severe infections and may play a
role in COVID-19 infection.
This review speculates the importance of
nutrition as a mitigation strategy to support immune function amid the
COVID-19 pandemic, identifying food groups and key nutrients of
importance that may affect the outcomes of respiratory infections.
Keywords:
coronavirus; COVID-19; SARS-CoV-2; inflammation; infection; anti-inflammatory; nutrition; vitamin C; vitamin D; zinc; noncommunicable diseases
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