Abstract | BACKGROUND: STUDY DESIGN AND METHODS: Mice were treated with several concentrations of G-CSF, and PLT count was measured. Because transfused PLTs should be cleared rapidly from the blood stream under hypersplenic state, PLT life span was studied. To determine direct role of spleen on thrombocytopenia, G-CSF was given to splenectomized mice. Because PLT count did not decrease in G-CSF-expressing transgenic mice, G-CSF was given to mice for a longer period of time and PLT count was investigated. RESULTS: PLT counts decreased while spleen weight increased in a dose-dependent manner by G-CSF treatment. No significant difference in PLT life span was found between G-CSF-treated and control mice. Histologic analysis showed no significant increase in PLT numbers trapped in either spleen or other tissue after PLT transfusion in G-CSF-treated mice. In splenectomized mice as well as in normal mice, G-CSF caused thrombocytopenia. When G-CSF was given to mice for a longer period of time, PLT counts decreased during the first 7 days and thereafter began to increase followed by returning to baseline on Day 15. CONCLUSION:
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Authors | Yasushi Takamatsu, Shiro Jimi, Tomohito Sato, Shuuji Hara, Junji Suzumiya, Kazuo Tamura |
Journal | Transfusion
(Transfusion)
Vol. 47
Issue 1
Pg. 41-9
(Jan 2007)
ISSN: 0041-1132 [Print] United States |
PMID | 17207228
(Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
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Chemical References |
- Granulocyte Colony-Stimulating Factor
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Topics |
- Animals
- Bone Marrow
(pathology)
- Cell Survival
(drug effects)
- Dose-Response Relationship, Drug
- Drug Administration Schedule
- Female
- Granulocyte Colony-Stimulating Factor
(administration & dosage, pharmacology)
- Hypersplenism
(chemically induced, complications)
- Megakaryocytes
(pathology)
- Mice
- Mice, Inbred C57BL
- Platelet Count
- Remission, Spontaneous
- Spleen
(pathology)
- Splenectomy
- Splenomegaly
(chemically induced, etiology)
- Thrombocytopenia
(blood, chemically induced, etiology, physiopathology)
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