Introduction: This study examined maternal, delivery and infant factors associated with cord thyroid-stimulating hormone (TSH) concentrations in an Asian population.
Methods: The Growing Up in Singapore Towards healthy Outcomes (GUSTO) study is a mother-offspring birth cohort from 2 major hospitals in Singapore. Cord serum TSH was measured using the Abbott ARCHITECT TSH Chemiluminescent Microparticle Immunoassay and the ADVIA Centaur TSH-3 Immunoassay. After excluding infants with a maternal history of thyroid disease, screening cord TSH results from 604 infants were available for multivariable regression analysis in relation to the factors of interest.
Results: Babies born by vaginal delivery had significantly higher cord serum TSH concentrations than babies born by caesarean section. Cord serum TSH concentrations differed significantly by measurement method. There was no association of cord TSH concentrations with ethnicity, sex, birth weight, gestational age, maternal body mass index, gestational weight gain, gestational diabetes mellitus status and other maternal, delivery and infant factors studied.
Conclusion: Interpretation of cord serum TSH results may need to take into account mode of delivery and measurement method.
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http://dx.doi.org/10.47102/annals-acadmedsg.2020471 | DOI Listing |
Endocr Metab Immune Disord Drug Targets
January 2025
Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Background: Combination therapy with levothyroxine (L-T4) and slow-release T3 (SRT3) in the treatment of hypothyroidism results in a normal triiodothyronine/thyroxine (T3/T4) ratio above that of L-T4 monotherapy. No clinical study has been reported with SRT3 monotherapy for hypothyroidism.
Methods: This study was conducted in two parts.
Background: Previous studies showed sex differences in the prevalences of both major depressive disorder (MDD) and subclinical hypothyroidism (SCH). This study aimed to further compare the prevalence and correlates of moderate-to-severe SCH between male and female Chinese MDD patients.
Methods: A total of 1706 first-episode drug naïve Chinese patients with MDD were recruited.
World J Psychiatry
January 2025
Breast Tumor Surgical Outpatient, Hengyang Central Hospital, Hengyang 421000, Hunan Province, China.
Background: The imbalance of hormone levels in the body is closely related to the occurrence and progression of schizophrenia, especially thyroid hormones.
Aim: To study the relationship between triiodothyronine (T3), thyroxine (T4), free T3 (FT3), free T4 (FT4), thyroid stimulating hormone (TSH) and schizophrenia.
Methods: In this study, 100 schizophrenia patients were selected from our hospital between April 2022 and April 2024.
Environ Res
January 2025
Department of Environmental Science, Baylor University, Waco, TX, USA.
Previous epidemiologic studies examining thyroid function and chemical exposures have typically focused on a single or a limited number of chemical classes, often neglecting the effects of chemical mixtures. This study addressed this gap by exploring the associations between exposure to hundreds of chemicals and thyroid function using an exposome-wide association study (ExWAS) approach and National Health and Nutrition Examination Survey (NHANES) data. We analyzed data from three NHANES cycles (2007-2008, 2009-2010, 2011-2012), which include measures of thyroid function (free and total triiodothyronine [T3], free and total thyroxine [T4], thyroid-stimulating hormone [TSH]) and chemical biomarker concentrations from 9,082 participants.
View Article and Find Full Text PDFJ Trace Elem Med Biol
January 2025
Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China; Key Laboratory of Reproductive Genetics (Ministry of Education) and Department of Reproductive Endocrinology, Women's Hospital, Zhejiang University School of Medicine, Zhejiang, China. Electronic address:
Objective: This study aims to investigate the association of serum iodine concentration (SIC) with thyroid function-associated parameters in pregnant women in mild iodine deficient area, and explore its potential to predict individual iodine nutrition status in pregnant women.
Methods: A total of 741 pregnant women undergoing prenatal examinations in their second trimester at the Women's Hospital, Zhejiang University School of Medicine, from March 2021 to May 2022 were finally recruited into the study. Venous blood and morning urine were collected.
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