Expression of leukemia inhibitory factor in the endometrium in abnormal uterine cavities during the implantation window.

Objective: To investigate the expression of the implantation factors leukemia inhibitory factor (LIF), interleukin-11 (IL-11), and IL-6ST/gp130 in the endometrium to examine the relationship between loss of implantation and abnormal uterine cavity.

Design: Case-control study.

Setting: Department of Obstetrics and Gynecology, Tokyo Medical University.

Anti-Müllerian hormone substance from follicular fluid is positively associated with success in oocyte fertilization during in vitro fertilization.

Objective: To determine whether the anti-Müllerian hormone (AMH) level in follicular fluid is associated with success in oocyte fertilization during in vitro fertilization (IVF) cycles.

Design: Retrospective study.

Setting: Tokyo Medical University hospital.

Significance of rises in urinary bicarbonate contents and pH related with increased atmospheric carbon dioxide in Tokyo.

Atmospheric carbon dioxide concentration was measured at several locations in Tokyo, for two weeks, in December, 1995 and 1996, and was found to be increased up to 550 ppm, while it was shown by us to be 450 ppm in December, 1994. These results demonstrate that atmospheric carbon dioxide is steadily increasing at faster rates in Tokyo than we expect, though it has been considered that the atmospheric carbon dioxide is still as much as 350 ppm. Bicarbonate concentration and pH of urine of 13 medical students in Tokyo were also measured for the same period in December of 1995 and 1996, and were found to be significantly increased compared with the values that were reported in the past.