The Effect of Chemical Compounds from Cigarettes Smoke on First Trimester Biochemical Markers

2017 ◽  
Vol 68 (9) ◽  
pp. 2122-2124
Author(s):  
Adrian Carabineanu ◽  
Dan Navolan ◽  
Florin Birsasteanu ◽  
Octavian Cretu ◽  
Marioara Boia ◽  
...  
Keyword(s):  
Pregnant Women ◽  
Chorionic Gonadotropin ◽  
Biochemical Markers ◽  
Protein A ◽  
Chemical Compounds ◽  
First Trimester ◽  
Physical Parameters ◽  
First Trimester Screening ◽  
Trimester Screening ◽  
The Relationship

Previous studies showed that certain behavioral and physical parameters influence the concentration of first trimester biochemical markers. The scope of the present article was to study the relationship between smoking and first trimester screening biochemical markers and the capability of the software to counterbalance this influence. Concentrations of pregnancy-associated protein A (PAPP-A) and free b chorionic gonadotropin hormone (free b hCG) were measured in sera of 1554 first trimester pregnant women, 1349 of which were non-smokers and 205 were smokers. First trimester PAPP-A values are lower in smoking compared to non-smoking pregnant women (0.94�0.04 vs. 1.09�0.02, p=0.0004), since smoking seems not to influence free b hCG concentration (1.11�0.07 vs. 1.03�0.02, ns). The software used by us corrected successfully the effect of chemical compounds from cigarette smoke on PAPP-A values.

Distribution of Biochemical and Ultrasound Markers Values in the First Trimester Screening Program in Timisoara

2017 ◽  
Vol 68 (7) ◽  
pp. 1636-1639
Author(s):  
Dan Navolan ◽  
Simona Vladareanu ◽  
Ioana Ciohat ◽  
Adrian Carabineanu ◽  
Marius Craina ◽  
...  
Keyword(s):  
Standard Deviation ◽  
Pregnant Women ◽  
Biochemical Markers ◽  
Screening Program ◽  
First Trimester ◽  
Nuchal Translucency ◽  
Ultrasound Measurement ◽  
First Trimester Screening ◽  
Disturbing Factor ◽  
Trimester Screening

The aim of our study was to analyze the distribution of biochemical markers (free-� hCG and PAPP-A) and nuchal translucency (NT) values and their deviation from expected median in our screening program. NT, free-� hCG and PAPP-A values were measured in first trimester sera of 1313 singleton pregnant women. The age (mean �standard deviation) of pregnant women at the time of screening was 28.94�4.95 years and the gestational age was 87.66�4.74 days. The value of NT (median�standard error of mean) was 0.87�0.01 multiple of median corrected (MoMc), of free-b hCG was 1.07�0.02 MoMc and of PAPP-A was 1.06�0.01 MoMc. Since the huge majority of pregnant women carried a healthy fetus it was assumed that the median value of measurements was equal to 1 MoMc and the deviation from median was equal to null. Our results showed that the greatest deviation from the expected median (-0.13 MoMc) was recorded for the NT measurement while the deviation for the free-� hCG and PAPP-A values was 0.07 respectively 0.06. In conclusion the main disturbing factor in calculating the aneuploidy risk was the measurement of NT. A systematic audit of laboratory and ultrasound measurement is necessary.

scholarly journals The Effect of Down Syndrome Biochemical Markers on Predicting Severity of Preeclampsia

2020 ◽  
Author(s):  
AYSE OZBAN
Keyword(s):  
Down Syndrome ◽  
Pregnant Women ◽  
Biochemical Markers ◽  
First Trimester ◽  
Maternal Serum ◽  
Screening Tests ◽  
Second Trimester ◽  
Study Results ◽  
Second Trimester Screening ◽  
Trimester Screening

Abstract Objective: This study aims to determine whether it is possible to predict preeclampsia by comparing postpartum results and test results of the pregnant women diagnosed with preeclampsia, whose first and/or second trimester screening tests were accessible, and to demonstrate the predictability of severity and week of onset.Background: 204 patients underwent renal transplantation in our center and 84 of them were female. Five of our patients (one of them had two births) gave birth to a total of 6 pregnancies.Method: 135 patients were diagnosed with preeclampsia and their first and/or second trimester screening tests were accessible, and 366 control participants gave birth to a healthy baby between 37-41 weeks after standard follow-up period for pregnancy and their screening tests were also accessible.Results: The study results show that the first trimester maternal serum PAPP-A level is significantly low in preeclamptic pregnant women, and that the second trimester maternal serum AFP and hCG levels are significantly high and uE3 levels are significantly low The results also suggest that the first and second trimester Down syndrome biochemical markers can be used in preeclampsia screening.Conclusion: Among these markers, uE3 is the parameter which affects the possibility of preeclampsia the most. However, the first and second trimester Down syndrome biochemical markers are not effective in predicting the severity and onset week of preeclampsia.

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