English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Serum somatomedin C, thymidine uptake stimulating activity, and transferrin were measured in fetal blood collected by ultrasound-guided puncture of umbilical vessels in utero during prenatal assessment for mother-to-fetus transmissible infections. Serum somatomedin C and transferrin were measured by immunoassay. Thymidine activity was measured by assay of [3H]thymidine incorporation into lectin-activated human lymphocytes. Studies were conducted in 48 healthy fetuses at gestational ages 21-28 wk. From 21-24 to 25-28 wk, serum somatomedin C significantly increased from 0.05 +/- 0.06 to 0.24 +/- 0.03 U/ml, while thymidine activity significantly decreased from 1.41 +/- 0.15 to 0.95 +/- 0.06 U/ml. Transferrin levels did not change. These data suggest that the humoral control of fetal growth at midpregnancy involves mechanisms other than direct regulation by somatomedin.

Serum Somatomedin C, Bioassayable Growth- Promoting Activity (Thymidine Activity), and Transferrin in Human Fetuses: In Utero Study