Chemical constituents of (Kom.) Nakai and their cytotoxic activities.

A new diarylheptanoid, (1 ,2,3,5)-2,3-dihydroxy-3',3''-dimethoxy-4'-de--methylcentrolobine () and a new bisabolane-type sesquiterpenoid, (1 ,7)-1,12,13-trihydroxybisabola-3,10-diene (), together with nineteen known compounds (-) were isolated from the EtOH extract of the stems and branches of (Kom.) Nakai. Their structures were elucidated by extensive analysis of 1 D and 2 D NMR spectra and from the HRESIMS.

Clinical significance and prognosis of fetal arrhythmias.

Objective: To explore fetal arrhythmia clinical significance and its correlation with fetal prognosis.

Methods: Twenty-six cases of fetal arrhythmia detected among 12,799 pregnant women recorded over a ten-year period in Peking Uinon Medical College (PUMC) Hospital were reviewed retrospectively. Fetal arrhythmia was diagnosed by fetal auscultation, ultrasonography, electric fetal heart monitoring, and fetal echocardiography.