Abstract | OBJECTIVE: DESIGN: Prospective, comparative, experimental study. SETTING: Laboratory at a university hospital. SUBJECTS: Male Wistar rats, aged 6-7 wks, and weighing 160-170 g. INTERVENTIONS: Male Wistar rats were administered TF (3.75 units/kg every 4 hrs), TF, and tranexamic acid (TA; 50 mg/kg every 4.5 hrs) or lipopolysaccharide (30 mg/kg every 4 hrs) via the tail vein, and blood was sampled at 0, 4, 8 and 12 hrs. MEASUREMENTS AND MAIN RESULTS: Subsequent alterations in thrombin-antithrombin complex and fibrinogen levels, as well as platelet counts, indicated that the severity of both types of experimental DIC (TF-induced and lipopolysaccharide-induced) was similar with respect to hemostatic activation and development of consumption coagulopathy. In lipopolysaccharide-induced DIC, a sharp increase in plasma tumor necrosis factor levels was observed at 4 hrs, after which a sharp decline was noted. Plasma levels of interleukin-6 were markedly increased at 4 hrs, after which a sustained elevation was observed for the duration of the experimental period ( tumor necrosis factor, 1270 +/- 280, 180 +/- 40, and 120 +/- 30 pg/mL at 4, 8 and 12 hrs, respectively; interleukin-6, 5810 +/- 1320, 4850 +/- 730, and 5230 +/- 1280 pg/mL at 4, 8 and 12 hrs, respectively). On the other hand, tumor necrosis factor and interleukin-6 were not detected following TF-induced DIC (0 +/- 0 at 4, 8, and 12 hrs for both tumor necrosis factor and interleukin-6). In the TF+TA group, significant increases in tumor necrosis factor and interleukin-6 were observed, compared with the TF group. CONCLUSIONS:
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Authors | Yasuo Ontachi, Hidesaku Asakura, Yoko Takahashi, Tomoe Hayashi, Masahisa Arahata, Yasuko Kadohira, Mio Maekawa, Mika Omote, Tomotaka Yoshida, Masahide Yamazaki, Eriko Morishita, Ken-ichi Miyamoto, Shinji Nakao |
Journal | Critical care medicine
(Crit Care Med)
Vol. 34
Issue 10
Pg. 2646-50
(Oct 2006)
ISSN: 0090-3493 [Print] United States |
PMID | 16932226
(Publication Type: Comparative Study, Evaluation Study, Journal Article)
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Chemical References |
- Antifibrinolytic Agents
- Cytokines
- Hemostatics
- Interleukin-6
- Lipopolysaccharides
- Tumor Necrosis Factor-alpha
- Interleukin-10
- Tranexamic Acid
- Thromboplastin
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Topics |
- Animals
- Antifibrinolytic Agents
(pharmacology)
- Cytokines
(drug effects, metabolism)
- Disseminated Intravascular Coagulation
(chemically induced, physiopathology)
- Hemostatics
(pharmacology)
- Interleukin-10
(metabolism)
- Interleukin-6
(metabolism)
- Lipopolysaccharides
(pharmacology)
- Male
- Prospective Studies
- Rats
- Rats, Wistar
- Receptor Cross-Talk
(drug effects)
- Signal Transduction
(drug effects)
- Thromboplastin
(pharmacology)
- Tranexamic Acid
(pharmacology)
- Tumor Necrosis Factor-alpha
(metabolism)
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