OBJECTIVE: Numerous physiological changes occur during pregnancy, which affect both the mother and the fetus. The objective of this study was to evaluate the magnesium, calcium, phosphate, parathormone (PTH), and vitamin D levels in each trimester of pregnancy. METHODS: In this study, 30 pregnant women in the first trimester, 30 pregnant women in the second trimester, 30 pregnant women in the third trimester, and 30 healthy, non-pregnant women (control) in the same age group were included. The serum magnesium, calcium, phosphate, PTH, and vitamin D levels were measured in all the participants. RESULTS: No statistically significant difference was found in the PTH and phosphate levels within the groups. In contrast, a significant difference was found in the vitamin D, calcium, and magnesium levels (p<0.001 for all). By analyzing the differences between the groups, the vitamin D, calcium, and magnesium levels were found to decrease with increase in the gestational weeks. CONCLUSION: For maintaining a healthy pregnancy and fetus, we recommend vitamin D, calcium, and magnesium levels to be included in routine follow-ups for each trimester and supplemented in case of deficiency.

SUMMARY OBJECTIVE: In this study, we aimed to determine and compare hepatitis B surface antigen level, anti-hepatitis B surface, and anti-hepatitis C virus positivity in Turkish pregnant women and Syrian refugee pregnant women residing in Turkey. METHODS: The study was conducted on Syrian refugee pregnant women aged 15–45 years and Turkish pregnant women who applied to state hospital's gynecology and obstetrics outpatient clinics between April 30, 2012, and April 30, 2022. In our study, 136,376 pregnant women (104,629 Turkish and 31,747 Syrian) tested for hepatitis B surface antigen, 72,035 pregnant women (53,070 Turkish and 18,965 Syrian) tested for anti-hepatitis B surface, and 120,611 pregnant women (92,514 Turkish and 28,097 Syrian) tested for anti-hepatitis C virus were included. The patients were divided into six groups for hepatitis B surface antigen, anti-hepatitis B surface, and anti-hepatitis C virus results based on their age: <20 years, 20–24 years, 25–29 years, 30–34 years, 35–39 years, and >40 years. For each age group, the results of Syrian refugee pregnant women and Turkish pregnant women were compared. RESULTS: Hepatitis B surface antigen positivity and anti-hepatitis B surface positivity were significantly higher in Turkish pregnant women compared to Syrian refugee pregnant women. Anti-hepatitis C virus positivity was significantly higher in Syrian refugee pregnant women compared to Turkish pregnant women. CONCLUSION: Based on the available data, we think that hepatitis B surface antigen, anti-hepatitis B surface, and anti-hepatitis C virus tests should be done routinely for pregnant women. Raising awareness among Syrian refugees about the hepatitis B virus vaccine as well as encouraging them to be vaccinated may reduce the negative impact of migration.

Objective: The aim of this study is to identify the first trimester markers that may be associated with gestational diabetes mellitus (GDM) and to evaluate whether those markers might be used for prediction of gestational diabetes or not. Methods: Pregnant women between 11 and 14 weeks of gestation applying to the university hospital between August 2018 and March 2019 were included in the study. Body mass index calculation and blood tests including complete blood count, TSH, T3, T4, HbA1c, uric acid, CRP, procalcitonin, PAPP-A and b-hCG levels were done during assessment followed by 50 grams of glucose challenge test between the 24 and 28 weeks of gestation for each woman. Patients with positive results were further evaluated with a 3-hour, 100-g OGTT. According to the diagnostic test results, the relationship between biochemical markers during the first trimester, BMI and GDM was statistically analyzed. Results: A hundred and eighty-two pregnant women participated in the study. Fifty-four women had positive glucose challenge test (GCT) results while 128 women had negative results. Pregnant women with positive GCT results underwent 3-hour, 100-g OGTT and, 24 pregnant women were diagnosed with GDM, while 158 pregnant women were considered healthy according to the results. There was no statistically significant difference between GDM and non-GDM groups in terms of age, height, TSH, T3, T4, b-hCG-mom, PAPP-A, PAPP-A-mom, uric acid and procalcitonin (p>0.05). The mean body weight, body mass index and HbA1c levels were higher and b-hCG levels were lower in the GDM group compared to the non-GDM group, and these findings were statistically significant (p<0.001). Conclusion: The use of first trimester markers in GDM prediction seems to have no significance. There is a need for extensive, randomized studies with universal criteria.

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