title: Time-course changes of eosinophil counts in premature infants: no effects of medical manipulation, except erythropoietin treatment, on eosinophilia.
abstract: In order to determine the factors responsible for eosinophilia during the neonatal period, we counted the eosinophils of premature infants every week and compared the medical profiles of infants with eosinophil counts above the 95th percentile and those below that percentile during the course of study. Medical treatments such as mechanical ventilation, antibiotics administration and intravenous catheterization had no significant effects on the increase of eosinophils. Furthermore, the incidence of eosinophil counts above the 95th percentile was not different between breast-fed and formula-fed infants. The infants treated with erythropoietin had greater eosinophil counts than those with no treatment. It is probable that medical manipulation using foreign bodies such as intratracheal tube, intravenous catheter, antibiotics and artificial formula had no significant effects on the increase of eosinophil counts, except for exogenous erythropoietin.
authors.affiliation: Department of Pediatrics, Hakodate Chuo General Hospital, Hokkaido, Japan. akira.ehara@nifty.ne.jp
authors.forename: A
authors.initials: A
authors.lastname: Ehara
authors.forename: Y
authors.initials: Y
authors.lastname: Takeda
authors.forename: T
authors.initials: T
authors.lastname: Kida
authors.forename: S
authors.initials: S
authors.lastname: Mizukami
authors.forename: M
authors.initials: M
authors.lastname: Hagisawa
authors.forename: Y
authors.initials: Y
authors.lastname: Yamada
mesh_terms: D018450:Disease Progression; D004802:Eosinophilia / Q000097:blood* / Q000188:drug therapy / Q000209:etiology; D004921:Erythropoietin / Q000494:pharmacology / Q000627:therapeutic use; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D007234:Infant, Premature; D007235:Infant, Premature, Diseases / Q000097:blood* / Q000188:drug therapy / Q000209:etiology; D015931:Intensive Care, Neonatal; D007958:Leukocyte Count / Q000187:drug effects; D008297:Male
chemical_list: D004921:Erythropoietin