title: Changes in white blood cells and myeloperoxidase activity in rhG-CSF prophylactic patients receiving cytotoxic chemotherapy.
abstract: The patterns of white blood cell parameters and mean peroxidase index (MPXI) changes in recombinant human granulocyte colony-stimulating factor (rhG-CSF) prophylactic patients, receiving myelosuppressive chemotherapy, have been studied in 8 cases, using flow cytochemistry blood autoanalyser (Technicon R H*1). No severe neutropenia (absolute neutrophil count, ANC < 0.50 x 10(9)/L) appeared in 6 rhG-CSF primary prophylactic patients, but severe neutropenia was noticed in 2 rhG-CSF secondary prophylactic patients for a period less than 1 week. In most of the cases the significant increase of neutrophil during leukocytosis occurred within 24 hours after starting rhG-CSF prophylaxis, and decreased within 24 hours after the end of rhG-CSF prophylaxis. There was a small degree of lymphocytosis, monocytosis, and basophilia in some cases. From this study, there were no significant changes of MPXI during rhG-CSF prophylaxis, the neutrophils produced during proliferative response to rhG-CSF possessed normal myeloperoxidase (MPO) activity. We concluded that the information obtained from automated blood cell analyser Technicon R H*1 especially MPXI and ANC, could be very useful for monitoring rhG-CSF prophylactic patients receiving myelosuppressive chemotherapy. The advantages of the MPXI over other methods is its simplification when performed as part of a routine complete blood count (CBC) on an automated hematology instrument, and its ability to measure even severe neutropenic samples.
authors.affiliation: Department of Laboratory Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand.
authors.forename: N
authors.initials: N
authors.lastname: Charuruks
authors.forename: P
authors.initials: P
authors.lastname: Krailadsiri
authors.forename: N
authors.initials: N
authors.lastname: Voravud
authors.forename: N
authors.initials: N
authors.lastname: Nitipaijit
authors.forename: N
authors.initials: N
authors.lastname: Srisink
authors.forename: R
authors.initials: R
authors.lastname: Settapiboon
mesh_terms: D000368:Aged; D000971:Antineoplastic Combined Chemotherapy Protocols / Q000627:therapeutic use*; D005260:Female; D016179:Granulocyte Colony-Stimulating Factor / Q000627:therapeutic use*; D006801:Humans; D007958:Leukocyte Count; D008175:Lung Neoplasms / Q000097:blood / Q000188:drug therapy* / Q000201:enzymology; D008297:Male; D008875:Middle Aged; D009504:Neutrophils / Q000201:enzymology*; D009195:Peroxidase / Q000378:metabolism*; D011446:Prospective Studies; D011994:Recombinant Proteins / Q000627:therapeutic use
chemical_list: D011994:Recombinant Proteins; D016179:Granulocyte Colony-Stimulating Factor; D009195:Peroxidase