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Biomedical subjects

Y Tanabe

Publications and source records attributed to Y Tanabe.

At least 379 records · Page 21Linked to original sources
PubMed1975

Second degree entrance block in intermittent ventricular parasystole.

In a 21-year-old healthy man, there may be a second degree entrance block occasionally of 2:1 nature resulting in intermittent ventricular parasystole. The refractory period of the ventricular-ectopic (V-E) junction in this case was markedly longer than the ventricular muscle except the V-E junction, but much shorter than the whole length of the parasystolic cycle.

Adult↗
PubMed1975

Simultaneous determinations of oestradiol-17 beta, progesterone and luteinizing hormone in the plasma during the ovulatory cycle of the hen.

Simultaneous determinations of plasma levels of oestradiol-17beta, progesterone and luteinizing hormone (LH) during the ovulatory cycles of hens were performed using radioimmunoassay techniques without chromatography. Blood samples were collected from the wing vein of 7 hens with regular ovulatory cycle at intervals of 1, 2 or 4 h throughout 36 h starting 24-25 h before the second egg (C-2) ovulation of the clutch and ending 11-12 h after C-2 ovulation. The oestradiol-17 beta level of the plasma during the ovulatory cycle varied from 50 pg/ml to 250 pg/ml. The value was high 24 h before ovulation and decreased until 10 h before ovulation, then increased and reached a peak 4-5 h before ovulation, when it started to decrease again until 12 h after ovulation. The plasma levels of progesterone varied from 1 ng/ml to 6 ng/ml, and reached a peak 4-6 h before ovulation. The plasma LH value varied from 1 ng/ml to 4 ng/ml, and the changes in the levels corresponded well with that of progesterone, also showing a coincident peak.

Animals↗