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- W4252263209 abstract "We report the effect of granulocyte colony stimulating factor (G-CSF) on neutropenia occurring during extended field radiotherapy in two groups of patients. The first group comprised 8 patients receiving craniospinal irradiation for a variety of central nervous system (CNS) neoplasms. None of these patients received cytotoxic chemotherapy. G-CSF was administered when the absolute neutrophil count (ANC) approached 1.5 × 1091. Neutropenia was promptly corrected in all cases, thereby avoiding unscheduled interruptions in radiotherapy. Following each GCSF administration, ANC reached a peak on the following day and then declined steadily. Mean ANC rose from 1.33 × 1091 on the day of G-CSF treatment to 7.07 × 1091 the next day. Patients received 2–6 G-CSF injections during radiotherapy. Experiments were carried out in vitro to assess the risk of G-CSF causing increased CNS tumour cell proliferation. 11 human CNS tumour cultures (2 medulloblastomas, 2 primitive neuroectodermal tumours and 7 astrocytic tumours) were cultured in the presence of G-CSF at a range of concentrations up to 100 ng/ml. Their proliferation was compared with that of a G-CSF dependent murine leukemia cell line (NFS-60). None of the human tumour cultures demonstrated a significant increase in proliferation in response to G-CSF. 4 patients undergoing “mantle” type radiotherapy for Hodgkin's Disease or Non-Hodgkin's Lymphoma also received G-CSF treatment for neutropenia. All 4 had previously received cytotoxic chemotherapy. The number of G-CSF injections given per patient during radiotherapy ranged from 3–6. Mean ANC rose from 1.76 × 1091 to 10.8 × 1091 the next day. These results suggest that G-CSF is a reliable treatment for radiotherapy induced neutropenia and that an intermittent dosage schedule is effective." @default.
- W4252263209 created "2022-05-12" @default.
- W4252263209 date "1991-09-01" @default.
- W4252263209 modified "2023-10-18" @default.
- W4252263209 title "Genomic structures of human type I and II TNF receptors: Implications for protein structure and evolutionary history" @default.
- W4252263209 doi "https://doi.org/10.1016/1043-4666(91)90196-k" @default.
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