Human Fetal Testis: Second Trimester Proliferative and Steroidogenic Capacities1

Sonographic markers of fetal trisomies: second trimester.

OBJECTIVE Second-trimester sonographic findings of fetal trisomy may include structural abnormalities or sonographic markers of fetal aneuploidy. Unlike structural anomalies, sonographic markers of fetal aneuploidy are insignificant by themselves with regard to outcome, are nonspecific--most frequently seen in normal fetuses, and are often transient. Our objective was to review the second-trime...

Correlation of fetal DNA and human chorionic gonadotropin concentrations in second-trimester maternal serum.

Expression pattern of histaminergic neurons in the human fetal hypothalamus at second and third trimester

BACKGROUND The hypothalamic nuclei constitute that part of the corticodiencephalic mechanism that activates, controls and integrates the peripheral, autonomic mechanisms, endocrine activity and many somatic functions. Their full integration into behavior requires the neocortex, in particular the limbic system. PURPOSE An antiserum against histamine was used to reveal the location and time of ...

Immunolocalization of steroidogenic enzymes in the fetal, neonatal and adult testis of the Shiba goat.

The localizations of steroidogenic enzymes (P450scc, 3 beta HSD, P450c17 and P450arom) in testes of Shiba goats were investigated by immunohistochemistry. P450scc, 3 beta HSD, P450c17 and P450arom were detected in all Leydig cells of adults. P450scc and P450c17 were observed in most Leydig cells in the fetus (90 days) and neonate (15 days). 3 beta HSD and P450arom were found in some Leydig cell...

Second-trimester fetal genetic ultrasonography to detect chromosomal abnormalities

Genetic ultrasonography refers to the evaluation of risk of chromosomal abnormalities via various soft sonographic markers. Although the maternal serum test is the primary screening method for chromosomal abnormalities, genetic ultrasonography is also widely used and can help increase detection rates. To date, many soft markers, including choroid plexus cysts, echogenic intracardiac foci, mild ...