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- W103040557 abstract "Because specific leukocyte functions and protein synthesis in general are impaired in iron deficiency, the production of interleukin 1 (IL-1) by peritoneal exudate cells (PEC) was examined in iron-deficient and control rats. Three groups of weanling male SD rats (n=19-22) were fed a semi-purified diet containing 6, 12, or 35 ppm iron in order to produce severe iron deficiency (SID), moderate iron deficiency (MID), or adequate iron status (AIS). Animals were killed at 42-47 d of age and acute PEC harvested. Crude IL-1 samples were prepared from these PEC, and assayed for activity by in vitro and in vivo methods. IL-1 preparations from SID and MID rats enhanced mouse thymocyte proliferation in vitro less than half as much as IL-1 preparations from AIS rats (p = 0.01). In a rabbit bioassay, injection of IL-1 prepared with 1 x 10/sup 7/ PEC from either SID or MID rats resulted in virtually no change in maximum body temperature. In contrast, IL-1 from AIS source PEC produced a marked change in maximum body temperature of approximately 0.5 F, which was significantly different from the other two groups (p < 0.01). IL-1 preparations from SID or MID source PEC decreased rabbit plasma iron andmore » zinc only one-third to one-eight as much as IL-1 from AIS source PEC (p less than or equal to 0.01). Severe or moderate iron deficiency clearly impairs IL-1 production by rat PEC. This may be another mechanism by which this nutritional deficiency alters the immune inflammatory response.« less" @default.
- W103040557 created "2016-06-24" @default.
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- W103040557 date "1986-03-05" @default.
- W103040557 modified "2023-09-24" @default.
- W103040557 title "Impaired interleukin 1 production by rat leukocytes during iron deficiency" @default.
- W103040557 hasPublicationYear "1986" @default.
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