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Updated: Apr 24, 2026

Isolation of Neonatal Extrahepatic Cholangiocytes
Published on: June 5, 2014
Does thyroid function disorder play a vital role in the pathogenesis of neonatal cholestasis?
Salma Abdel Megeed Nagi1,2, Mai Ibrahim Elashmawy3, Mohamed Zaeim Hafez Ahmed4
1Faculty of Medicine, King Salman International University, El Tor Branch, South Sinai, Egypt.
Insights
Thyroid dysfunction may play a role in neonatal cholestasis. Infants with cholestasis not caused by biliary atresia showed higher triiodothyronine (T3) levels, suggesting a potential diagnostic link.
Area of Science:
- Pediatrics
- Endocrinology
- Hepatology
Background:
- Neonatal cholestasis is a critical condition in infants with diverse etiologies.
- Thyroid dysfunction is an underrecognized factor potentially contributing to neonatal cholestasis.
- Existing research links thyroid conditions to liver damage in newborns, necessitating further investigation.
Purpose of the Study:
- To assess thyroid function in infants diagnosed with neonatal cholestasis.
- To explore the potential role of thyroid dysfunction in the diagnosis of neonatal cholestasis, differentiating between biliary atresia and other causes.
Main Methods:
- A cohort of 100 infants with neonatal cholestasis was studied.
- Infants were categorized into biliary atresia (BA) and non-BA groups (50 each).
- Serum levels of free triiodothyronine (T3), free tetraiodothyronine (T4), and thyroid-stimulating hormone (TSH) were measured.
Main Results:
- Free triiodothyronine (T3) levels were significantly elevated in the non-BA group compared to the BA group.
- No significant differences were observed in free tetraiodothyronine (T4) or thyroid-stimulating hormone (TSH) levels between the groups.
- These findings indicate a potential association between altered T3 levels and specific causes of neonatal cholestasis.
Conclusions:
- Thyroid function, specifically T3 levels, may be linked to neonatal cholestasis.
- Elevated T3 in the non-BA group suggests thyroid dysfunction could be a relevant factor in diagnosing non-biliary atresia cholestasis.
- Further research is warranted to elucidate the precise role of thyroid hormones in neonatal cholestasis pathophysiology and diagnosis.
Introduction:
Neonatal cholestasis is a syndrome characterized by decreased bile flow in infants and has several underlying causes, including genetic and metabolic diseases. Thyroid dysfunction may contribute to the pathophysiology of cholestasis, although it is not often acknowledged as a major cause. Further research into this possible connection is necessary because studies have linked thyroid conditions, including hyperthyroidism and euthyroid sick syndrome, to liver damage in newborns. This study aimed to evaluate the thyroid function in infants with neonatal cholestasis and determine whether it has a role in the diagnosis of other causes of neonatal cholestasis.
Material And Methods:
The study included 100 infants with neonatal cholestasis of different causes (50 infants with biliary atresia [BA] and 50 infants with other causes of neonatal cholestasis other than BA) attending the National Liver Institute, Menoufia University, between July 2024 and January 2025. The infants were evaluated for serum free triiodothyronine (T3), free tetraiodothyronine (T4), and thyroid-stimulating hormone (TSH).
Results:
T3 was significantly higher in the non-BA group (3.97 ±0.45) than the BA group (p < 0.0001), while T4 and TSH did not significantly differ among the studied patients (p ≥ 0.05).
Conclusions:
The results demonstrated significant differences in T3 levels, with higher levels observed in the non-BA group, while T4 and TSH showed no significant differences between the two groups. These findings suggest that thyroid dysfunction may be associated with neonatal cholestasis, particularly in conditions other than BA.
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