the purpose of this research was to determine the effect of two kinds of diet (zinc deficiency and iron deficiency) on some anthropometrical indexes (body weight and crown-rump length), brain growth and motor function in young rats. adult male and female albino wistar rats were obtained from the breeding colony of pasteur institute, iran. the female albino rats were mated with normal male rats....

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...

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...

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...

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....

The development of ultrasound technology allows us to see the structure and development of the fetus directly. Crown-Rump Length (CRL) and mean diameter of gestational sac (MSD) can be used to determine the age of the fetus. Both parameters are useful for measuring different aspects of the first trimester of pregnancy. This study proposes a method to obtain those parameter values automatically ...

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...