Factors affecting pregnant women's feelings of safety and depressive symptoms during the SARS-CoV-2 pandemic

<b>Introduction</b> <b>Material and methods</b> <b>Results</b> <b>Conclusions</b> <b></b> <b></b>

Women's Awareness of Reproductive Health

Background and Objectives: reproductive disorders are a serious global concern in medical, social, and demographic contexts. According to estimates, approximately 10-15% of couples around the world suffer from infertility. Numerous studies have shown that modifiable lifestyle factors, such as a high-fat diet, a postponed decision to start a family, tobacco smoking, alcohol consumption, risky sexual behavior, psychiatric diseases, and chronic stress, have a negative influence on the fertility of women. The main goal of this study is to assess the knowledge of women about reproductive health, infertility risk factors, and causes of infertility and to determine whether the level of this knowledge varies based on sociodemographic variables. Materials and Methods: a survey was conducted among 111 patients who anonymously filled in a questionnaire comprising questions regarding fertility and its deficiencies. The results were analyzed using the Chi-square test and Fisher's test. Results: the survey results indicated that women had a good or very good level of knowledge of the causes of infertility. The obtained test results were statistically significant (p < 0.05), but the studied group did not possess sufficient knowledge of the symptoms characterizing the diseases related to limited fertility (p > 0.05). The level of knowledge on the diagnosis of infertility did not depend on the age of the examined people, their educational level, or personal experience in this field (p > 0.05). The results also revealed that the awareness of women on reproductive health was poor. The studied women had a low level of knowledge of infertility risk factors, and their knowledge did not correlate with age, educational level, or personal experiences. Conclusions: information on the aspects of reproductive health should be widely disseminated through public educational campaigns, aimed at correcting erroneous convictions among women about the risk factors for infertility and assisting them in improving fertility.

Neonatal breast-suckling skills in the context of lactation and peripartum hormonal changes and additional factors-a pilot study

Background

Childbirth and lactation are intricate processes, involving several hormones, the most important of which are prolactin (a protein hormone) and cortisol (one of the glucocorticoids). The early postpartum period is crucial for both mother and newborn and has an impact on the lactation and breastfeeding process.

Methods

The study included 78 patients who were admitted to the Gynecology-Obstetrics Clinical Hospital in Poznań for labor induction and/or in the active phase of the first labor stage. The levels of cortisol and prolactin in serum were assessed in these women during admission in labor, during the third labor stage, and on the second day postpartum. The levels of cortisol and prolactin in the umbilical cord serum were assessed immediately after cord clamping. The “Protocol for the assessment of breast-suckling skills” was used to assess the neonatal breast-suckling skills on the second day postpartum. Some additional parameters were evaluated in mothers via a telephone interview at three and six months postpartum. The study was conducted from January to August 2020, however the study was suspended during April–July 2020 due to the SARS-CoV-2 pandemic, which led to restrictions in the hospital limiting access to the hospital wards unless necessary.

Results

Early breastfeeding with skin-to-skin contact was associated with low levels of hormones, cortisol levels were lower in serum (p = 0.0108) and umbilical vein (p = 0.0273) in mothers who breastfed immediately after childbirth. At three months postpartum, 88% of the mothers who did not offer a pacifier to the child during the first few days of life breastfed the child naturally (p = 0.037), and at six months, 96% of those who did not offer a pacifier continued to breastfeed (p = 0.0008). Multiple, statistically significant correlations were observed between the variables assessed according to the “Protocol for the assessment of breast-suckling skills” and breastfeeding after three months.

Conclusions

Breastfeeding immediately after childbirth, appropriate assessment of the breast-suckling skills of newborns, avoiding pacifiers and infant formula feeding, and offering support to new mothers in the early days after childbirth seem to be important factors for sustaining breastfeeding after three and six months of childbirth.

Relation between polyphenols, malondialdehyde, antioxidant capacity, lactate dehydrogenase and toxic elements in human colostrum milk

The present study investigated the interrelationships between the concentration of total polyphenols (TP), malondialdehyde (MDA), total antioxidant capacity (TAC), lactate dehydrogenase activity (LDH) and content of toxic elements (Al, As, Cd, Ni, Pb) in human colostrum milk (n = 75), and further assessed their potential association with maternal lifestyle characteristics. As and Cd were always below detection limits while Al, Ni and Pb were found at the level of 89.7, 6.2 and 1.3 μg L^-1, respectively. Concentrations of TP and MDA, in the studied group were 46.91 ± 21.25 mg GAE L^-1 and 0.66 ± 0.27 nmol mL^-1, respectively, and were inversely correlated (Rs = -0.32; p < 0.01). TP and TAC increased significantly with maternal consumption of vegetables (Rs = 0.25 and Rs = 0.37, respectively; p < 0.05). Concentration of Al was positively correlated with MDA (Rs = 0.21; p < 0.01) and negatively with TP (Rs = -0.28; p < 0.01). Positive correlation was also found between Pb and MDA (Rs = 0.32; p < 0.01). No association with place of living (urban/rural), women's age and former smoking were found for any studied milk parameter. The results add to the general understanding of factors influencing redox balance in milk and potentially affecting its quality.

Rare-earth elements in human colostrum milk

Rare-earth elements (REEs) are used in a growing number of applications, and their release to environment has increased over the decades. Knowledge of REEs in human milk and factors that could possibly influence their concentration is scarce. This study evaluated the concentrations of 16 REEs (Ce, Eu, Er, Gd, La, Nd, Pr, Sc, Sm, Dy, Ho, Lu, Tb, Tm, Y, and Yb) in human colostrum milk collected from Polish women (n = 100) with the ICP-OES technique. The concentrations (mean ± SD) of Pr (41.9 ± 13.2 μg L^-1), Nd (11.0 ± 4.0 μg L^-1), La (7.1 ± 5.2 μg L^-1), and Er (2.2 ± 0.8 μg L^-1) were found above detection limits. The total mean ± SD concentration of detected REEs was 60.9 ± 17.8 μg L^-1. Current smokers displayed significantly increased Nd concentrations compared to women who had never smoked. No other associations between REEs in colostrum milk and age, diet in pregnancy (food supplement use and frequency of fish, meat, and vegetable consumption) or place of living (urban/rural) were found. This study adds to general understanding of the occurrence and turnover of REEs in women and human fluids.