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Background: Effects of soy-containing infant formulas on the thyroid gland is not clear. We aimed to evaluate the effects of infant formulas with different quantities of soy content on the functional and histopathological characteristics of the thyroid gland.
Methods: Twenty-eight female Sprague-Dawley rats were divided into four groups. Group 1 was fed with standard pellet rat food (8 g/day); group 2 soy-free infant formula (8 g/day); group 3 low-dose (1.12 g/100 mL) soy-containing formula (8 g/day), and group 4 high-dose (2.64 g/100 mL) soy-containing formula (8 g/day). Blood samples were collected from the subjects on day 0, 30, 60, and 90 to evaluate thyroid functions. All subjects were sacrificed on day 90. Thyroid glands were excised and examined histopathologically.
Results: Serum levels of free T3, free T4, TSH, anti-TPO, and anti-TG were significantly higher in Group 4 compared to other groups (P<0.001, P<0.01, P<0.001, P=0.002). No differences were found in the histopathological findings between the groups.
Conclusions: Infant formulas with high soy content induce hyperthyroidism with high TSH levels. High levels of anti-TPO and anti-TG suggest that observed changes might have occurred via inflammatory mechanism.
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http://dx.doi.org/10.23736/S2724-5276.21.06221-6 | DOI Listing |
Food Res Int
November 2025
Key Laboratory of Dairy Science, Ministry of Education, College of Food Science, Northeast Agricultural University, Harbin 150030, China; Key Laboratory of Infant Formula Food, State Administration for Market Regulation, Harbin 150030, China. Electronic address:
Whey protein isolate (WPI) is an important food ingredient, but its high allergenicity limit its application. Recently, metal-phenolic networks (MPNs) have been shown to be effective in modifying proteins. The aim of this study was to evaluate the effects of MPNs formed from (-)-epigallocatechin-3-gallate (EGCG) and Fe on the structure, antibody-binding capacity, and functional properties of WPI.
View Article and Find Full Text PDFFood Res Int
November 2025
School of Food Science and Engineering, Overseas Expertise Introduction Center for Discipline Innovation of Food Nutrition and Human Health, South China University of Technology, Guangzhou 510640, China; Sino-Singapore International Research Institute, Guangzhou 510555, China. Electronic address: zh
Breast milk is rich in bioactive proteins and oligosaccharides, including osteopontin (OPN) and 2'-fucosyllactose (2'-FL), which are believed to promote the growth of beneficial microbiota and regulate intestinal barrier function. In this study, fermentation substrates including DOPN (digested OPN fragment), 2'-FL and their combinations in varying proportions, were prepared through in vitro gastrointestinal digestion, dialysis and freeze-drying. Changes in gas production, organic acid levels, ammonia N concentration and bacterial population abundance were studied using an in vitro batch fermentation model, with feces inocula from healthy infants.
View Article and Find Full Text PDFCrit Rev Food Sci Nutr
September 2025
Institute of Reproductive and Child Health, National Health Commission Key Laboratory of Reproductive Health, School of Public Health, Peking University, Beijing, China.
An adequate choline intake is essential for infant health. Choline profiles in human milk, critical for setting adequate intake levels and developing infant formulas, varied markedly across studies. This study aimed to systematically review and analyze choline concentrations and compositions in human milk and explore influencing factors.
View Article and Find Full Text PDFEnviron Res
September 2025
Department of Environmental Health Engineering, Faculty of Health, Kermanshah University of Medical Sciences, Kermanshah, Islamic Republic of Iran.
Concerns regarding the health implications of microplastics (MPs) pollution and their byproducts, such as bisphenol A (BPA) and phthalate esters (PAEs), have escalated, particularly for vulnerable populations like infants. Since infants are primarily nourished by breast milk or infant formula, their heightened exposure risk to these contaminants warrants investigation. This study assessed the presence, morphological characteristics, and associated byproducts (BPA and PAEs) of MPs in commercially available infant formulas sold in the Iranian market.
View Article and Find Full Text PDFJACC Case Rep
September 2025
Seattle Children's Hospital, University of Washington, Seattle, Washington, USA.
Objective: To demonstrate a detailed procedural guide for right ventricular outflow tract (RVOT) stent placement for palliation of tetralogy of Fallot and pulmonary stenosis in a patient weighing <2 kg.
Key Steps: Obtain wire position with an 0.018-inch Hi-Torque floppy wire in a distal branch pulmonary artery.