The aim of this work was to address morphometric patterns of coronary artery (c.a.) development in the rat based on serial section analysis of hearts at different stages of prenatal development. Studies were performed on foetal hearts 15-21 days (ED) post-conception. Paraffin sections were stained with haematoxylin-eosin (H&E) and frozen sections were labelled with Griffonia simplicifolia I (GS...

STUDY QUESTION How do human embryonic growth trajectories evolve in the first trimester, and is first-trimester embryonic growth associated with fetal growth and birthweight (BW)? SUMMARY ANSWER Human embryonic growth rates increase between 9 and 10 weeks of gestation and are associated with mid-pregnancy fetal growth and BW. WHAT IS KNOWN ALREADY Fetal growth is associated with health and ...

unitermos abstract Background and aims: The diagnosis of human fetal age is usually estimated based on the measurement of crown-rump length or crown-heel length and the weight of the fetus. However, this estimate is not totally accurate and sometimes is necessary to combine other data to determine the fetal age. An analysis of the normal embryological development of the kidney may assist in thi...

four crossbred cows with mummified fetus were utilized for the study. the cows were subjected to gynecological examination and based on the findings the cases were diagnosed as mummified fetus. the cows were treated with 2 mg estradiol valerate and 500 µg cloprostenol and were examined every 12 hr after 24 hr of the treatment for cervical dilatation and other signs related to fetal expulsion. t...

Methods A retrospective analysis of 961 pregnancies with PAPP-A < 0. 3 MoM and 961 age-matched controls with PAPP-A level 0. 9-1. 1 MoM. The study period was a four years (2009-2012). The FTS was performed according to the guidelines of Finnish Ministry of Social Affairs and Health. The gestational age was estimated by the fetal crown-rump length and the NT measurement was performed according t...

Objective: This study was designed to test the null hypothesis that first trimester ultrasound crown-rump length measurement for gestational age determination will result in no difference in the rate of induction of labor for postterm pregnancy, compared with second trimester biometry alone. Study design: Two hundred eighteen women were randomly assigned to receive either first trimester ultras...

STUDY QUESTION Is it possible to evaluate first trimester brain ventricle development in human pregnancies using an innovative virtual reality (VR) application and to analyze the relation of the embryonic volume (EV) and brain ventricle fluid volume (BVFV) with gestational age (GA), crown-rump length (CRL) and the Carnegie stage? SUMMARY ANSWER Volumetry and staging of the human embryo using ...

An organophosphorus insecticide, chlorpyrifos was tested for the embryotoxicity and teratogenecity in mice. Different sublethal doses of the insecticide i.e. 20, 40, 60 and 80ug/gm body weight were prepared by dissolving it in corn oil in such a way that each 0.1ml of the solution contains desired concentration. The doses were given orally on day 6 of gestation to different experimental groups....

A method is reported by which the "in utero" crownrump length of the fetus may be determined by sonar in the first trimester of pregnancy. The accuracy of the technique was assessed by comparing the sonar and the direct postabortum measurements of fetuses in cases of missed abortion. A normal curve of fetal crown-rump length was derived from 214 examinations on 80 patients and by using these va...