TABLE 5.

Effects of the in vitro irradiation of NK cell-enriched splenocytes (NK cells) and the IFN-γ- and LPS-stimulated peritoneal macrophages (Mϕ) with low doses of X-rays.

	NK cells		Mϕ
Groups	Cytotoxicity [% lysis]	Production of IFN-γ [pg/ml]	Cytotoxicity [% lysis]	Production of NO [μM NO2−/l]
Control	6.0	46.1	25.2	12.5
0.1 Gy	5.5	51.3	24.6	11.8
0.2 Gy	5.8	53.7	24.9	13.1

Control – sham-exposed NK cells or Mϕ; 0.1 Gy – NK cells or Mϕ exposed to single irradiation with 0.1 Gy X-rays; 0.2 Gy – NK cells or Mϕ exposed to single irradiation with 0.2 Gy X-rays.