Effects of environmental pollution with aromatic hydrocarbons on endocrine and metabolic functions of the human placenta.

Introduction: Phenol and 1-hydroxypyrene are biological markers of exposure to polycyclic aromatic hydrocarbons (PAH) that have certain negative effects on parenchymal organs such as the human placenta. The literature presents only few reports regarding the effects of elevated PAH levels on the functions of the human placenta.

Objective: The aim of the work is to assess the effects of elevated PAH levels in excreted urine on the endocrine and metabolic functions of the human placenta obtained from a normal pregnancy.

Cell-free fetal DNA testing in prenatal diagnosis: Recommendations of the Polish Gynecological Society and the Polish Human Genetics Society.

This paper contains a joint position of the Polish Gynecological Society and Polish Human Genetics Society on the cell-free fetal DNA testing in prenatal diagnosis. We present situations where the cell-free fetal DNA testing should be applied and cases in which performing of the test is not useful. We indicate what diagnostic steps should be performed before the test and how the test results should be interpreted and followed.

The duration of pregnancy in ecologically-challenged area. The effects of environmental pollution with aromatic hydrocarbons on the angiogenesis and elements of the mesenchymal tissue of the human placenta.

Introduction: The literature presents only few reports regarding the effects of elevated levels of aromatic hydrocarbons (AH) on the functions of the human placenta. The effects of environmental contamination with AH (including phenol and 1-hydroxypyrene) have certain negative effects on parenchymal organs such as human placenta.

Objective: The paper aimed to assess the effects of elevated levels of AH on the placental angiogenesis and elements of the mesenchymal tissue of the placenta.