Recovery from Cyclophosphamide Overdose in a Dog

2017 ◽  
Vol 53 (4) ◽  
pp. 230-235 ◽  
Author(s):  
Jessica Renee Finlay ◽  
Kenneth Wyatt ◽  
Courtney North
Keyword(s):  
Blood Count ◽  
Complete Blood Count ◽  
Hemorrhagic Cystitis ◽  
Complete Recovery ◽  
Oral Cyclophosphamide ◽  
Granulocyte Colony Stimulating Factor ◽  
Heart Murmur ◽  
Stimulating Factor ◽  
Peripheral Neutrophil

ABSTRACT An adult female spayed dog was evaluated after inadvertently receiving a total dose of 1,750 mg oral cyclophosphamide, equivalent to 2,303 mg/m2, over 21 days (days −21 to 0). Nine days after the last dose of cyclophosphamide (day +9), the dog was evaluated at Perth Veterinary Specialists. Physical examination revealed mucosal pallor, a grade 2/6 systolic heart murmur, and severe hemorrhagic cystitis. Severe nonregenerative pancytopenia was detected on hematology. Broad spectrum antibiotics, two fresh whole blood transfusions, granulocyte colony stimulating factor, and tranexamic acid were administered. Five days after presentation (day +14), the peripheral neutrophil count had recovered, and by 12 days (day +21) the complete blood count was near normal. A second episode of thrombocytopenia (day +51) was managed with vincristine, prednisolone, and melatonin. The dog made a complete recovery with no long-term complications at the time of writing. To the author's knowledge, this is the highest inadvertently administered dose of cyclophosphamide to result in complete recovery.

Clozapine induced blood dyscrasias and a therapeutical approach

2016 ◽  
Vol 33 (S1) ◽  
pp. S613-S613
Author(s):  
A. Gomez Peinado ◽  
P. Cano Ruiz ◽  
S. Cañas Fraile ◽  
M. Gonzalez Cano ◽  
G.E. Barba Fajardo
Keyword(s):  
Mental Health ◽  
Side Effects ◽  
Blood Count ◽  
Complete Blood Count ◽  
Granulocyte Colony Stimulating Factor ◽  
Colony Stimulating Factor ◽  
Simultaneous Treatment ◽  
Clozapine Treatment ◽  
Competing Interest ◽  
Stimulating Factor

IntroductionClozapine is a neuroleptic commonly used in treatments resistant to schizophrenia. However, despite the benefits, clozapine might cause some serious side effects. Hence, it is of the utmost necessity to keep an exacting control of the patients.ObjectivesTo study some of the therapeutical approaches to the treatment of clozapine induced neutropenia and agranulocytosis.MethodsReview of some articles in Mental Health Journals.ResultsThe treatment with clozapine, substratum of aminergic and muscarinic receptors, entails a 0.9% risk of causing agranulocytosis, and approximately a 2.7% risk of causing neutropenia. Both occur, over 80% of them, during the first 18 weeks of treatment. Thus, before starting it, it is necessary to draw some blood and analyze the complete blood count (CBC). Also, we must analyze CBCs weekly during the first 18 weeks. Other dyscrasias like leukopenia, leukocytosis, anaemia, eoshinophilia, thrombocythaemia or thrombocytopenia can also be observed. When agranulocytosis appears, it can be treated by discontinuing the clozapine treatment, but also using granulocyte-colony stimulating factor or lithium, both separated or combined with clozapine. Lithium produces reversible leukocytosis onceplasma levels of > 0.4 mmol/L are reached. Despite the simultaneous treatment with lithium, clozapine can trigger some neurological side effects, it seems that seizure risk remains invariable.ConclusionsSome of the clozapine's side effects, like neutropenia or agranulocytosis, are potentially lethal. Their treatment consists of discontinuing clozapine or initiating granulocyte-colony stimulating factor or lithium. These are good options that can give rise to a later continued treatment with clozapine.Disclosure of interestThe authors have not supplied their declaration of competing interest.

Trilineage Response in Severe Aplastic Anemia Following Long-Term Therapy with Recombinant Human Granulocyte Colony-Stimulating Factor

1993 ◽  
Vol 90 (3) ◽  
pp. 159-161 ◽  
Author(s):  
Eishi Ashihara ◽  
Chihiro Shimazaki ◽  
Toshiyuki Hirata ◽  
Katsunori Okawa ◽  
Naritoshi Oku ◽  
...  
Keyword(s):  
Aplastic Anemia ◽  
Severe Aplastic Anemia ◽  
Term Therapy ◽  
Granulocyte Colony Stimulating Factor ◽  
Colony Stimulating Factor ◽  
Long Term Therapy ◽  
Stimulating Factor

scholarly journals Quantitative and cell-cycle differences in progenitor cells mobilized by recombinant human interleukin-7 and recombinant human granulocyte colony-stimulating factor

Blood ◽  
1996 ◽  
Vol 88 (11) ◽  
pp. 4139-4148 ◽  
Author(s):  
KJ Grzegorzewski ◽  
KL Komschlies ◽  
JL Franco ◽  
FW Ruscetti ◽  
JR Keller ◽  
...  
Keyword(s):  
Stem Cells ◽  
Progenitor Cells ◽  
Combined Treatment ◽  
Fold Increase ◽  
Granulocyte Colony Stimulating Factor ◽  
Colony Stimulating Factor ◽  
Interleukin 7 ◽  
Stimulating Factor

Abstract Administration of recombinant human interleukin-7 (rhIL-7) to mice increases the exportation of myeloid progenitors (colony-forming unit [CFU]-c and CFU-granulocyte erythroid megakaryocyte macrophage [CFU-GEMM]) from the bone marrow (BM) to peripheral organs, including blood, and also increases the number of primitive progenitor and stem cells in the peripheral blood (PB). We now report that combined treatment of mice with rhIL-7 and recombinant human granulocyte-colony stimulating factor (rhG-CSF) stimulates a twofold to 10-fold increase in the total number of PB CFU-c, and a twofold to fivefold increase in the total number of PB CFU-spleen at day 8 (CFU-S8) over the increase stimulated by rhIL-7 or rhG-CSF alone. In addition, the quality of mobilized cells with trilineage, long-term marrow-repopulating activity is maintained or increased in mice treated with rhIL-7 and rhG-CSF compared with rhIL-7 or rhG-CSF alone. These differences in mobilizing efficiency suggest qualitative differences in the mechanisms by which rhIL-7 and rhG-CSF mobilize progenitor cells, in fact, the functional status of progenitor cells mobilized by rhIL-7 differs from that of cells mobilized by rhG-CSF in that the incidence of actively cycling (S-phase) progenitors obtained from the PB is about 20-fold higher for rhIL-7-treated mice than for mice treated with rhG-CSF. These results suggest the use of rhIL-7-mobilized progenitor/stem cells for gene-modification and tracking studies, and highlight different functions and rates of repopulation after reconstitution with PB leukocytes obtained from mice treated with rhIL-7 versus rhG-CSF.

scholarly journals Flt-3 Ligand Synergizes With Granulocyte Colony-Stimulating Factor to Increase Neutrophil Numbers and to Mobilize Peripheral Blood Stem Cells With Long-Term Repopulating Potential

Blood ◽  
1997 ◽  
Vol 89 (11) ◽  
pp. 3998-4004 ◽  
Author(s):  
Graham Molineux ◽  
Clay McCrea ◽  
Xiao Qiang Yan ◽  
Patrick Kerzic ◽  
Ian McNiece
Keyword(s):  
Peripheral Blood ◽  
Single Agent ◽  
Granulocyte Colony Stimulating Factor ◽  
Colony Stimulating Factor ◽  
Peripheral Blood Stem Cells ◽  
Blood Stem Cells ◽  
Short And Long Term ◽  
Macrophage Colony ◽  
Stimulating Factor

Abstract Flt-3 ligand (FL) shares many features with stem cell factor (SCF), a widely documented cofactor for peripheral blood progenitor cell (PBPC) mobilization. We investigated the mobilization of PBPCs by FL in combination with granulocyte colony-stimulating factor (G-CSF). As a single agent, FL was a relatively modest mobilizer of PBPCs, resulting in 360 granulocyte/macrophage colony-forming cells (GM-CFCs)/mL blood (control, 155 GM-CFCs/mL blood) and no advantage in leukocyte recovery when these PBPCs were transplanted to irradiated recipient mice. G-CSF, on the other hand, mobilized over 20,000 GM-CFCs/mL blood, and the combination of G-CSF + FL resulted in over 100,000 GM-CFCs/mL blood. The combination of G-CSF + FL stimulated increased levels of monocytes and basophils in the peripheral blood. The performance of the mobilized PBPC product in irradiated hosts correlated with progenitor numbers resulting in long-term engraftment in association with accelerated short-term recovery of both leukocytes and platelets. These data demonstrate the potential of FL to synergize with G-CSF to mobilize PBPCs with both short- and long-term engraftment potential. The effect is similar to the synergistic interaction of G-CSF and SCF on PBPC mobilization. The use of FL as opposed to SCF may elicit a different spectrum of toxicities including lymphoid proliferation effects, in contrast to the mast cell degranulation effects of SCF. Clinical studies of FL are needed to evaluate its usefulness in man.

scholarly journals Pegylated granulocyte colony-stimulating factor conveys long-term neuroprotection and improves functional outcome in a model of Parkinson’s disease

Brain ◽  
2012 ◽  
Vol 135 (6) ◽  
pp. 1914-1925 ◽  
Author(s):  
Tobias Frank ◽  
Florian Klinker ◽  
Björn H. Falkenburger ◽  
Rico Laage ◽  
Fred Lühder ◽  
...  
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Functional Outcome ◽  
Granulocyte Colony Stimulating Factor ◽  
Colony Stimulating Factor ◽  
Stimulating Factor
Sign in / Sign up

Export Citation Format

Share Document