Dietary copper deficiency and autoimmunity in the NZB mouse.

Autor: Mulhern, Sally A., Raveche, Elizabeth S., Smith, Howard R., Lai, Renu B.
Předmět:
Zdroj: American Journal of Clinical Nutrition; Dec1987, Vol. 46 Issue 6, p1035-1039, 5p
Abstrakt: NZB mice were exposed from birth to a diet either adequate or deficient in copper. By age 6 wk the mice exposed to the copper-deficient diet showed symptoms characteristic of copper deficiency (anemia, hypoceruloplasminemia, and achromatrichia). The splenic lymphocytes from the copper-deficient group had reduced numbers of cells expressing the following surface markers: Ly-5, Ly-1, B-220, and sIg. Less than 10% of the splenic lymphocytes in this group were cycling, as determined by flow cytometry analysis. The spontaneous 96-h anti-ss-DNA levels in the copper-deficient group were lower than those in the control group. The exogenous colony-forming units (CFUs) were significantly enhanced in the copper-deficient mice. The decreased splenic lymphoid populations, decreased anti-ss-DNA titers, and increased exogenous CFUs in the copper-deficient mice appear to be due to an increase in erythropoiesis at the expense of lymphopoiesis. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index