Transient Neonatal Hypothyroidism

2015 ◽  
pp. 75-83
Author(s):  
Silvana Caiulo ◽  
Maria Cristina Vigone ◽  
Giovanna Weber
Keyword(s):  
Neonatal Hypothyroidism

Effect of Fetal and Neonatal Hypothyroidism on Glucose Tolerance in Middle-Aged Female Rats

2020 ◽  
Vol 20 ◽  
Author(s):  
Sajad Jeddi ◽  
Saeedeh Khalifi ◽  
Mahboubeh Ghanbari ◽  
Asghar Ghasemi
Keyword(s):  
Glucose Tolerance ◽  
Plasma Glucose ◽  
Female Offspring ◽  
Female Rats ◽  
Control Group ◽  
Female Rat ◽  
Middle Aged ◽  
Intravenous Glucose ◽  
Neonatal Hypothyroidism ◽  
Glucose Levels

Background and objective: The effects of hypothyroidism during pregnancy and lactation on carbohydrate metabolism have been mostly studied in male animals. The aim of this study is therefore to investigate effect of fetal and neonatal hypothyroidism (FH and NH) on the glucose tolerance in middle-aged female rat offspring. Methods: Pregnant female rats were divided into three groups: Rats in the control group consumed tap water, while those in the FH and NH groups consumed 250 mg/L of 6-propyl-2-thiouracil (PTU) in their drinking water during gestation or lactation periods, respectively. After weaning, the female offspring were separated and divided into 3 groups (n=8/group): Control, FH, and NH. Body weight was recorded monthly and intravenous glucose tolerance test (IVGTT) was performed at month 12. Results: Compared to controls, female rats in the FH group had significantly higher plasma glucose levels than controls throughout the IVGTT except at min 60. Values at min 5 of the FH and control group were 196.1±1.9 and 155.3±5.9 mg/dL, respectively (P<0.05). In the NH group, plasma glucose levels were significantly higher only at min 5 (185.7±14.1 vs. 155.3±5.9 mg/dL, P<0.05). Conclusion: Hypothyroidism during fetal or neonatal periods caused glucose intolerance in middle-aged female offspring rats.

A single reagent radioimmunoassay for thyroxine in blood samples absorbed on filter paper for mass screening of neonatal hypothyroidism

1988 ◽  
Vol 122 (1) ◽  
pp. 129-135 ◽  
Author(s):  
N. Nair ◽  
M. R. A. Pillai ◽  
R. S. Mani ◽  
S. Naik ◽  
M. Desai ◽  
...  
Keyword(s):  
Mass Screening ◽  
Filter Paper ◽  
Neonatal Hypothyroidism ◽  
Blood Samples

Should Screening Programs Be Perfect?

PEDIATRICS ◽  
1983 ◽  
Vol 71 (2) ◽  
pp. 301-301
Author(s):  
PHILIP R. WYATT
Keyword(s):  
United States ◽  
Health Care ◽  
Early Detection ◽  
New England ◽  
Health Care System ◽  
The United States ◽  
Neonatal Hypothyroidism ◽  
Screening Programs ◽  
Care System

To the Editor.— The report of the New England Regional Screening Program1 on neonatal hypothyroidism is a stunning illustration of the vulnerability of screening programs. It is unfortunate that this experience will probably be used as an argument to minimize the input of screening programs in the health care system in the United States. The report illustrates that, in addition to the 2% of the screened population that eluded the program, 14 infants with hypothyroidism escaped the full benefits of early detection and treatment.

APPROACH TO THE PATIENT Fetal and neonatal thyroid dysfunction

2021 ◽  
Author(s):  
Juliane Léger ◽  
Clemence Delcour ◽  
Jean-Claude Carel
Keyword(s):  
Developed Countries ◽  
Antithyroid Drugs ◽  
Pituitary Hormone ◽  
Rare Disorders ◽  
Neonatal Hypothyroidism ◽  
Thyrotropin Receptor Antibodies ◽  
Neonatal Hyperthyroidism ◽  
History Of ◽  
Receptor Antibodies

Abstract Fetal and neonatal dysfunctions include rare serious disorders involving abnormal thyroid function during the second half of gestation, which may persist throughout life, as for most congenital thyroid disorders, or be transient, resolving in the first few weeks of life, as in autoimmune hyperthyroidism or hypothyroidism and some cases of congenital hypothyroidism (CH) with the thyroid gland in situ. Primary CH is diagnosed by neonatal screening, which has been implemented for 40 years in developed countries and should be introduced worldwide, as early treatment prevents irreversible neurodevelopmental delay.Central CH is a rarer entity occurring mostly in association with multiple pituitary hormone deficiencies. Other rare disorders impair the action of thyroid hormones. Neonatal Grave’s disease (GD) results from the passage of thyrotropin receptor antibodies (TRAb) across the placenta, from mother to fetus. It may affect the fetuses and neonates of mothers with a history of current or past GD, but hyperthyroidism develops only in those with high levels of stimulatory TRAb activity. The presence of antibodies predominantly blocking TSH receptors may result in transient hypothyroidism, possibly followed by neonatal hyperthyroidism, depending on the balance between the antibodies present. Antithyroid drugs taken by the mother cross the placenta, treating potential fetal hyperthyroidism,but they may also cause transient fetal and neonatal hypothyroidism. Early diagnosis and treatment are key to optimizing the child’s prognosis. This review focuses on the diagnosis and management of these patients during the fetal and neonatal periods. It includes the description of a case of fetal and neonatal autoimmune hyperthyroidism.

scholarly journals Prevalence of neonatal hypothyroidism and phenylketonuria in Southern Thailand: A 10-year report

2011 ◽  
Vol 15 (2) ◽  
pp. 115 ◽  
Author(s):  
Arirat Banpavichit ◽  
Viroj Wiwanitkit ◽  
Yavamal Sutivijit
Keyword(s):  
Neonatal Hypothyroidism ◽  
Southern Thailand

Neonatal hypothyroidism: behavioral and hormonal rehabilitation

1983 ◽  
Vol 1 (3) ◽  
pp. 243-243
Author(s):  
V. Tamásy ◽  
A. Vallerga ◽  
E. Meisami ◽  
P.S. Timiras
Keyword(s):  
Neonatal Hypothyroidism
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