Journals / Türk Biyokimya Dergisi / 2020 / Cilt: 45 - Sayı: 5

Association of maternal serum trace elements with newborn screening-thyroid stimulating hormone

[Yenidoğan Tiroid Stimülan Hormon Tarama Sonuçları ile Anne Serum Eser Element Düzeylerinin İlişkisi

Pages
507–514
Publication Date
2022-11-06
DOI
—
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Finally, theassociation between maternal serum Cu levels and newbornscreening-TSH levels may highlight the importance ofmaternal Cu levels on the newborn thyroid health.

📌 3 Key Takeaways

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Objective & Hypothesis:Objectives: Trace elements are essential in thyroid functioning as they incorporate into biologically important enzymes as cofactors.
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Key Findings & Data:The placenta can either activate orinhibit the transfer of maternal trace elements to the unborn.An imbalance of maternal trace elements in pregnancy mayaffect both maternal and newborn thyroid function.Methods: Blood samples from 315 lactating mothers werecollected in the first 48 h after delivery and evaluated forselenium (Se), copper (Cu), manganese (Mn), and zinc (Zn)using flame atomic absorption spectroscopy (FAAS) andquadrupole inductively coupled plasma-mass spectrometer (ICP-MS).
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Conclusion & Impact:Finally, theassociation between maternal serum Cu levels and newbornscreening-TSH levels may highlight the importance ofmaternal Cu levels on the newborn thyroid health.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Objectives: Trace elements are essential in thyroid functioning as they incorporate into biologically important enzymes as cofactors. The placenta can either activate orinhibit the transfer of maternal trace elements to the unborn.An imbalance of maternal trace elements in pregnancy mayaffect both maternal and newborn thyroid function.Methods: Blood samples from 315 lactating mothers werecollected in the first 48 h after delivery and evaluated forselenium (Se), copper (Cu), manganese (Mn), and zinc (Zn)using flame atomic absorption spectroscopy (FAAS) andquadrupole inductively coupled plasma-mass spectrometer (ICP-MS). Thyroid hormones and auto-antibodies(thyroid-stimulating hormone (TSH), free T3 (fT3), free T3(fT4), anti–thyroid peroxidase (anti-TPO), and antithyroglobulin (anti-TG)) were analyzed in maternal blood using an electro-chemiluminescence immunoassay (ECLIA).Between 48 and 72 postpartum hours, spot blood sampleswere used for newborn screening-TSH measurement. Correlation and multivariate analyses were performed toevaluate the effect of maternal trace element levels onnewborn screening-TSH levels.Results: The medians (min-max) of maternal Se (45.16 µg/L (21.28–79.04)), Cu (210.10 µg/dL (117.04–390.64)), Mn(2.11 µg/L (0.20–3.46)), and Zn (0.43 mg/L (0.24–0.66))were determined. A positive correlation was detected between Zn and maternal TSH levels (r=0.12, p < 0.05).Newborn screening-TSH was significantly correlated withmaternal Cu (r=0.14, p < 0.01). Similarly, Cu exhibited weakassociations in clustering analysis while others sharedcommon clusters with newborn-screening TSH.Conclusions: There was no significant association betweenmost of the maternal serum trace elements and maternalthyroid hormone parameters, with an only exception between maternal Zn and maternal serum TSH. Finally, theassociation between maternal serum Cu levels and newbornscreening-TSH levels may highlight the importance ofmaternal Cu levels on the newborn thyroid health.

Özet

Amaç: Eser elementler, biyolojik öneme sahip enzimlerin yapısına kofaktör olarak dahil olur ve bu elementlerin tiroid fonksiyonunda da önemli görevleri vardır. Plasenta, anne eser elementlerinin fetüse transferini sağlar veya engeller. Gebelik süresinde anneye ait eser elementlerin dengesizliği, hem anne hem de yenidoğanın tiroid fonk siyonunu etkileyebilir. Gereç ve Yöntem: Doğumdan sonraki ilk 48 saatte, 315 anneden toplanan kan örnekleri, alev atomik absorpsiyon spektroskopisi (FAAS) ve indüktif eşleşmiş plazma kütle spektrometresi (ICP-MS) kullanılarak selenyum (Se), bakır (Cu), manganez (Mn) ve çinko (Zn) açısından değerlendir ildi. Tiroid hormonları ve otoantikorları (TSH, fT3, fT4, anti TPO ve anti-TG) elektrokemilüminesans immünoanaliz yöntemiyle tayin edildi. Yenidoğan TSH tarama sonuçları kullanılarak, anne serum eser element düzeylerinin yeni doğan TSH düzeylerine etkisi korelasyon ve çok değişkenli analizler ile belirlendi. Bulgular: Anne serum Se (45.16 µg/L (21.28–79.04)), Cu (210.10 µg/dL (117.04–390.64)), Mn (2.11 µg/L (0.20–3.46)) ve Zn (0.43 mg/L(0.24–0.66)) medyan değerleri (min-max) tespit edildi. Anne TSH düzeyi ile Zn düzeyi arasında pozitif korelasyon saptandı (r=0.12, p < 0.05). Yenidoğan TSH taraması sonucu, anne Cu düzeyi ile anlamlı korelasyon gösterdi (r=0.14, p < 0.01). Benzer şekilde, kümeleme ana lizine göre Cu diğer iz elementlere kıyasla yenidoğan TSH ile daha zayıf kümelendi. Sonuç: Anne serum eser elementlerinin çoğu ile anne tiroid hormonu parametreleri arasında anlamlı bir ilişki bulunmamakla birlikte, anne Zn ve anne serum TSH sev iyesi arasında istatistiksel anlamlı bir ilişki bulunmaktadır. Son olarak, anne serum Cu düzeyleri ile yenidoğan TSH tarama sonucu arasındaki ilişki, anne Cu düzeyinin yeni doğan tiroid sağlığı üzerindeki önemini vurgulamaktadır.

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Cite This Article

EROĞLU, M., SERDAR, M., KUMRU, P., ÖZPINAR, A., ÜÇAL, Y., LEVİ, C. A., KELEŞ, Z. Z. Y., AKSUNGAR, F., TURAM, C., MUCHU, M. (2022). Association of maternal serum trace elements with newborn screening-thyroid stimulating hormone. Türk Biyokimya Dergisi, Cilt: 45 - Sayı: 5, 507–514. https://ajindex.com/articles/620803

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