Antipyretic and Antiviral Action of Vitamin A in Moloney Sarcoma Virus- and Poxvirus-Inoculated Mice 2

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Abstract
Six week-old male CBA/J mice fed a commercial powdered laboratory chow or the same chow supplemented with vitamin A palmitate (150,000 U/kg) were inoculated with either the Moloney strain of murine sarcoma virus (M-MuSV) or poxvirus. Central body temperature was measured dally. Both viruses elicited fevers, but the fevers were less pronounced and of shorter duration in the mice ingesting the vitamin A-supplemented diet. Palpable M-MuSV-induced tumors appeared later, were less frequent, grew more slowly, and were resorbed sooner in the mice fed the vitamin A supplement. Similarly, in these mice the appearance of pox lesions was delayed, their numbers reduced, and their disappearance hastened.

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