Summary
1) CZP had marked effects on RD. RD disappeared in 8 (73%) of 11 patients treated with CZP alone and 6 (43%) of 14 treated with CZP in combination with other drugs. Even when RD persisted, its amplitude and frequency decreased in some patients.
2) In the group treated with CZP in combination with other drugs, RD disappeared in all 5 patients with the persistent RD, of whom 2 had arachnoid cyst. Of the 6 patients with frequent seizures, 2 were subsequently diagnosed as having CPS and SPS, respectively. Patients who did not respond to CPZ included those in whom the diagnosis of BECCT should be reconfirmed, and electro‐clinical response may be also useful for diagnosing RD.
3) In patients treated with CZP alone for a short‐term treatment of BECCT, the drug administration could be discontinued only in one. A longer follow‐up study is necessary to reach a conclusion in future.
The aim of this study was to investigate whether mouse placenta produces mature mouse GHRF (mGHRF) and whether cytokines regulate placental mGHRF production. Using Sephadex G-50 gel filtration chromatography and reverse phase HPLC, we identified immunoreactive mGHRF in acid-ethanol extract of placental tissues, which had chromatographic characteristics identical to those of hypothalamic mature mGHRF peptide. The major peak of immunoreactive GHRF in the medium from cultured placental cells was resolved by HPLC at a fraction identical to hypothalamic mature mGHRF. Interleukin-6 (IL-6), IL-11, leukemia inhibitory factor (LIF), and oncostatin-M, which all use gp130 as a signal transducer, significantly inhibited mGHRF secretion by cultured placental cells. However, IL-1 alpha and tumor necrosis factor-alpha had no effect on mGHRF secretion. Antibodies to IL-6 or IL-6 receptor completely blocked the inhibitory effect of IL-6 on mGHRF secretion. Anti-LIF, and oncostatin-M inhibited the expression of mGHRF messenger RNA. These results suggest that mouse placenta produces and releases the mature mGHRF, which is indistinguishable by chromatographic criteria from that produced by the hypothalamus, and that signals through gp130 lead to the inhibition of mGHRF production and release in the mouse placenta.
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