Serotonergic signals enhanced hamster sperm hyperactivation.

In the present study, we investigated the regulatory mechanisms underlying sperm hyperactivation enhanced by 5-hydroxytryptamine (5-HT) in hamsters. First, we examined the types of 5-HT receptors that regulate hyperactivation. Hyperactivation was significantly enhanced by 5-HT and 5-HT receptor agonists.

Invasive mole with lung metastasis after an abdominal complete hydatidiform mole treatment.

A 27-year-old woman, gravida 1, para 0, was transferred to our hospital with acute abdominal pain. Her serum human chorionic gonadotropin level was 60 231 mIU/mL. Transabdominal ultrasound revealed an echo-free space, and emergency laparoscopy-assisted surgery was performed with a preoperative diagnosis of ruptured ectopic pregnancy.

Career satisfaction level, mental distress, and gender differences in working conditions among Japanese obstetricians and gynecologists.

Aim: Career satisfaction level, degree of mental distress associated with certain work-related factors, and demographics were examined for the first time in obstetricians and gynecologists in Japan.

Material And Methods: Associations between the score on Kessler 6 screening scale, or the job satisfaction level, and the scores on the job content questionnaire, Social Support Questionnaire (SSQ), working conditions and demographics were examined in 1301 members of the Japan Society of Obstetrics and Gynecology.

Results: 8.

Regulation of hyperactivation of hamster spermatozoa by progesterone.

Although it is accepted that progesterone (P) induces acrosome reaction through non-genomic regulation, it is not well known if P also affects hyperactivation of sperm. Hamster spermatozoa were hyperactivated by incubation for 4 h on modified Tyrode's albumin lactate pyruvate medium and recorded on a DVD via a charge-coupled device camera attached to a microscope with phase-contrast illumination and a small CO incubator. Phosphorylation of proteins was detected by western blotting using antiphosphotyrosine antibodies.