controversial issue, while the nature of F-induced anemia if
any is variable. Normocytic anemia associated with decreased
RBC number and hemoglobin content, but unchanged Hct,
was observed in NaF-treated (226 ppm F) female mice
and their offspring [19]. Microcytic anemia resulted from
decreased Hct, RBC count or hemoglobin content was
reported in adult male mice ingested 40 ppm F for 30 days
[20] or 5–10 mg F/kg bw for 30–60 days [21], as well as
in the cattle afflicted with fluorosis [8]. Susheela [6]
established that chronic intoxication of the humans with
F was associated with severe anemia, caused by shorter
erythrocytes life span and transformation of erythrocytes to
echinocytes due to membrane degeneration. An anemia
was also reported in children living in fluoridated region
[22]. In contrast, no detectable abnormalities in hematopoietic
system were reported in the rats exposed to 30–100 ppm F for
1.5–4 months [9, 23] and in the cattle fed daily with F in the
concentrations of up to 100 ppm for more than 7 years [24