Deja vu all over again. Nearly a year later some are still discovering the relationship between RANTES and Covid severity.

Relative expression of pro-inflammatory molecules in COVID-19 patients manifested disease severities.

Quote:

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At the onset of symptoms (day-1), ACE2 (P < 0.05) and IL-6 (P > 0.05) were up-regulated in all COVID-19 groups, although expression levels did not significantly correlate with disease severities. However, expression of IL-6, MCP-1, MIP-1α, TNF-α, RANTES, and ACE2, on day-14, were positively correlated with disease severities. Relative viral load at day-1 showed no significant correlation with cytokine expression but had a significant positive correlation with RANTES and ACE2 expression on day-14 (P < 0.05). Male patients had a higher level of IL-6 than female patients on day-1 (P < 0.05).

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https://www.medrxiv.org/content/10.1101/2021....l.pdf+html