Steroid-induced hypersegmentation in neutrophiles

Area of Science:

• Hematology
• Endocrinology
• Cell Biology

Background:

• Neutrophil nuclear segmentation is a key indicator of granulocyte maturation.
• Certain deficiencies, such as folate and vitamin B12, are known to cause neutrophil hypersegmentation.

Purpose of the Study:

• To investigate the effect of glucocorticoid administration on neutrophil nuclear segmentation.
• To determine if glucocorticoids induce hypersegmentation similar to nutrient deficiencies.

Main Methods:

• Studied 13 patients with hematologic disorders and 2 healthy volunteers.
• Monitored granulocyte nuclear lobe counts before and during glucocorticoid therapy.
• Observed changes over a one-week treatment period.

Main Results:

• Glucocorticoid therapy significantly increased granulocyte nuclear lobe count by the third day of treatment (P < .001).
• Continued glucocorticoid therapy led to further increases in nuclear segmentation.
• Neutrophil hypersegmentation was observed in seventeen of eighteen treatment courses.

Conclusions:

• Glucocorticoid administration induces neutrophil hypersegmentation.
• This effect is comparable to that seen in folate and vitamin B12 deficiencies.
• The underlying mechanism for glucocorticoid-induced neutrophil hypersegmentation remains unknown.