Macrophage colony-stimulating factor (M-CSF) is a characteristic cytokine that plays an essential role in placenta maintenance, and thrombin-antithrombin III complex (TAT) is a hemostatic marker that is remarkably altered both in normal pregnancy and in preeclampsia. The present study was designed in order to show various levels of M-CSF and TAT in pregnancies. Peripheral blood was collected from 49 subjects, of whom 31 were normal pregnant women consisting of the four groups (namely 10th, 20th, 30th, and 38th weeks of gestation), 13 were preeclamptic pregnant women (37th week of gestation; mean blood pressure, 158/99 mm Hg), and 5 were nonpregnant controls. We compared blood M-CSF and TAT levels among them. Results showed that blood M-CSF and TAT levels increased significantly with gestational age. Furthermore, the ratio of increase in M-CSF was significantly lower than that in TAT in normal pregnant women compared with controls. In contrast, the ratio of increase in M-CSF was significantly higher than that in TAT in preeclamptic women compared with normal pregnant women. These results concerning the ratio of increase in M-CSF and TAT have not been reported. These findings show that M-CSF level increases significantly in preeclampsia even in its earlier stage, exhibiting a systolic blood pressure of less than 160 mm Hg.
In pregnancy, the decidual cells produce and secrete large amounts of macrophage colony-stimulating factor (M-CSF). M-CSF stimulates the proliferation and differentiation of trophoblasts. In addition, it stimulates them in a dose-dependent manner to produce certain hormones, such as human chorionic gonadotropin and human placental lactogen. Based on these facts, M-CSF is considered to be an essential cytokine for placental maintenance. Because placental dysfunction may sometimes result from preeclampsia, ascertaining blood M-CSF levels in preeclamptic patients would be of interest. The blood was collected from 33 subjects, of whom 19 were normal pregnant women and 14 were preeclamptic patients. The M-CSF level was determined by the sandwich enzyme-linked immunosorbent assay method using three antibodies. The investigators measured peripheral blood M-CSF levels in preeclamptic subjects and compared them with levels in subjects with normal pregnancies. This study showed that peripheral blood M-CSF levels were significantly higher in preeclamptic patients in the 30th and 38th weeks of pregnancy (P < .005). This is the first report concerning high M-CSF blood levels in preeclamptic patients.
Cisplatin affected the levels of NAG, beta 2MG, uCr and TP without influencing BUN and sCr levels. Fosfomycin, therefore, may be useful as a supplemental treatment for reducing cisplatin nephrotoxicity, especially proximal tubular damage.
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