Skalny, Anatoly V.; Tinkov, Alexey A.; Bohan, Tatiana G.; Shabalovskaya, Marina B.; Terekhina, Olga; Leshchinskaia, Svetlana B.; Agarkova, Lyubov A.; Notova, Svetlana V.; Skalnaya, Margarita G. and Kovas, Yulia. 2018. Toxicological and nutritional status of trace elements in hair of women with in vitro fertilization (IVF) pregnancy and their 9-month-old children. Reproductive Toxicology, 82, pp. 50-56. ISSN 0890-6238 [Article]
Background. Trace elements play a significant role in the regulation of human reproduction, while advanced age may have a significant impact on trace element metabolism. The objective of the present study was to assess the impact of lifestyle factors on age-related differences in hair trace element content in pregnant women in the third trimester. Material and methods. A total of 124 pregnant women aged 20-29 (n = 72) and 30-39 (n = 52) were examined. Scalp hair trace element content was assessed using inductively coupled plasma mass spectrometry at NexION 300D (Perkin Elmer, USA) after microwave digestion. Results. The results showed that the elder pregnant women had 36% (p = 0.009), 14% (p = 0.045), and 45% (p = 0.044) lower hair Zn, V, and Cd content, and 16% (p = 0.044) higher hair B levels-in comparison to the respective younger group values. Multiple regression analysis demonstrated that the age of the women had a significant influence on hair V and Zn levels. B content was also significantly influenced by age at first intercourse, smoking status, and specific dietary habits. None of the lifestyle factors were associated with hair Cd content in pregnant women. Hair V levels were also affected by following a special diet. Interestingly, alcohol intake did not have a significant impact on hair trace element content. Conclusion. These data indicate that lifestyle factors have a significant influence on age-related changes in hair trace elements during pregnancy that may impact the outcome of pregnancy.
Activities of estrogen metabolism enzymes (aromatase, 2- and 4-estrogen hydroxylases, catechol-O-methyltransferase, and glutathione transferase) were studied by modern biochemical methods in tumors of patients with endometrial cancer. Relationships between enzyme activities and body weight index, age of menarche, stage of the disease, tumor histotype, differentiation degree, and depth of invasion into the myometrium were detected. The detected relationships between enzyme activities and serum concentrations of estradiol and progesterone and level of estrogen receptors in tumor tissue attest to hormone dependence of aromatase, estrogen hydroxylases, and glutathione transferase.
1 Научно-исследовательский институт акушерства, гинекологии и перинатологии (НИИАГП), Томский национальный исследовательский медицинский центр (НИМЦ) Сибирского отделения (СО) Российской академии наук (РАН) Россия, 634039, г. Томск, ул. Сергея Лазо, 4 2 Национальный исследовательский Томский государственный университет (НИ ТГУ) Россия, 634050, г. Томск, пр. Ленина, 36 3 Национальный исследовательский Томский политехнический университет (НИ ТПУ) Россия, 634050, г. Томск, пр. Ленина, 30 4 Сибирский государственный медицинский университет (СибГМУ) Россия, 634050, г. Томск, Московский тракт, 2 РЕЗЮМЕ Цель работы: выявить дополнительные факторы риска осложненного течения беременности и разработать математическую модель прогнозирования течения гестационного процесса на основании комплексного подхода. Материалы и методы. Проведено простое проспективное исследование в параллельных группах 240 женщин низкой степени перинатального риска в I и II триместрах беременности. Для исследования психоýмоционального состояния и личностных особенностей беременных женщин использовали опросник «Качество жизни» SF-36, Семантический дифференциал Ч. Осгуд, методику «Самооценка психических состояний» Г. Айзенка, Пятифакторный личностный опросник (Big five) Р. МакКрае и П. Коста. Для оценки влияния окружающей среды использовали анкету изучения степени удовлетворенности городской средой Ю.В. Катаевой.Результаты. Установлены дополнительные критерии для прогнозирования течения гестационного процесса. Для I триместра такими факторами оказались: наличие ограничений в выполнении повседневных ролевых функций вследствие болезненных проявлений и признаков раннего токсикоза, плохое самочувствие, пониженное настроение, высокая тревожность, трудность к гибкому поведению в новых жизненных условиях и тенденция к использованию агрессивных способов реагирования. Для II триместра: наличие ощущений болезненного состояния, склонность к быстрой смене настроения, предпочтение уединения близким отношениям и неудовлетворенность качеством городской среды.Заключение. Изучение взаимосвязи и установление наиболее важных факторов, влияющих на процессы нормального течения беременности, родов и состояние новорожденного, позволяет разрабатывать дополнительные критерии для формирования групп повышенного акушерского и перинатального риска и прогнозировать течение беременности. Разработана математическая модель прогнозирования течения гестационного процесса, учитывающая выявленные дополнительные критерии.Ключевые слова: акушерский риск, психоýмоциональное состояние беременной, прогноз беременности, психологические факторы.
The aim of the present study was to investigate hair essential trace elements and mineral levels in 105 pregnant normal-weight (control) and 55 overweight and obese women in the third trimester of pregnancy, as well as in their children at the age of 9 months. The hair essential trace elements and mineral levels were assessed using inductively-coupled plasma mass-spectrometry. Overweight pregnant women had significantly reduced Cr (-24%; p = 0.047) and Zn (-13%; p = 0.008) content, as well as elevated hair Na and K levels as compared to the controls. Children from overweight and obese mothers had lower hair Mo (-18%; p = 0.017), Se (-8%; p = 0.043), and V (-24%; p = 0.028) levels, as well as elevated Sr content (19%; p = 0.025). Correlation analysis revealed a significant relationship between maternal and child hair levels of Co (r = 0.170; p=0.038), Cu (r = 0.513; p<0.001), Mn (r = 0.240; p=0.003), and Na (r = 0.181; p=0.027) in the whole sample. Pre-pregnancy maternal body mass index (BMI) positively correlated with maternal hair K (r = 0.336; p<0.001) and Na (r = 0.212; p=0.008), and negatively correlated with V (r =-0.204; p=0.011) and Zn (r =-0.162; p=0.045) levels. The results indicate that impaired trace element and mineral metabolism may play a role in the link between maternal obesity, complications of pregnancy and child's postnatal development. Hypothetically, dietary improvement may be used as a tool to reduce these risks. However, further experimental and clinical studies are required to investigate the relationship between obesity and trace element metabolism in pregnancy.
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