The dire wolf (Canis dirus, fearsome dog) is an extinct species of the genus Canis. It is perhaps one of the most famous prehistoric carnivores in North America along with its extinct competitor Smilodon, the sabre-toothed cat.
It is important they remain at adequate levels. As with platelets, neutrophil levels may become depressed in patients on myelosuppressive therapy such as imatinib mesylate (also called IM , Gleevec or Glivec ). The normal range of the percentage of neutrophils is between 45% and 70%. More important than the percentage of neutrophils is the absolute neutrophil count (ANC) , which should fall between 1.0 to 8.0 k/ul.
Cyclic neutropenia is present at birth. Cyclic neutropenia causes neutrophil counts to vary in a 21-day cycle. Neutrophil counts fall from normal to low. A period of neutropenia may last a few days. Normal levels follow for the rest of the cycle. The cycle then resets and begins again.