Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Circulating iodide concentrations during and after pregnancy

C S Liberman1, S C Pino, S L Fang

  • 1Department of Medicine, Hospital Clinico de la Universidad de Chile, Santiago.

The Journal of Clinical Endocrinology and Metabolism
|October 13, 1998
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

[Epidemiological characteristics and spatio-temporal distribution of pulmonary tuberculosis cases reported in students from Guizhou Province, 2011-2020].

Zhonghua liu xing bing xue za zhi = Zhonghua liuxingbingxue zazhi·2023
Same author

Effects of hypoxia on proliferation and osteogenic differentiation of periodontal ligament stem cells: an in vitro and in vivo study.

Genetics and molecular research : GMR·2014
Same author

Zinc glycine chelate absorption characteristics in Sprague Dawley rat.

Journal of animal physiology and animal nutrition·2014
Same author

Iodine-induced hypothyroidism in full-term infants with congenital heart disease: more common than currently appreciated?

The Journal of clinical endocrinology and metabolism·2014
Same author

Transient congenital hypothyroidism in an iodine-replete area is not related to parental consanguinity, mode of delivery, goitrogens, iodine exposure, or thyrotropin receptor autoantibodies.

Journal of endocrinological investigation·2008
Same author

The presence of Mycoplasma hominis in isolates of Trichomonas vaginalis impacts significantly on DNA fingerprinting results.

Parasitology research·2007
Same journal

Children's neurodevelopment at school age after hysterosalpingography with iodinated contrast: a cohort study.

The Journal of clinical endocrinology and metabolism·2026
Same journal

Bone phenotype of patients with genetic forms of lipodystrophy: a systematic review of literature.

The Journal of clinical endocrinology and metabolism·2026
Same journal

The Extra X Chromosome and Autoimmune Susceptibility in Klinefelter Syndrome.

The Journal of clinical endocrinology and metabolism·2026
Same journal

Pathophysiology-Based Classification of Male Infertility: Evidence from an 800-patient Prospective Cohort.

The Journal of clinical endocrinology and metabolism·2026
Same journal

Parathyroid Carcinoma: From Molecular Pathogenesis to Multidisciplinary Management.

The Journal of clinical endocrinology and metabolism·2026
Same journal

Genetic and Clinical Factors Associated With Metformin Plasma Concentrations Following an Acute Metformin Challenge.

The Journal of clinical endocrinology and metabolism·2026
See all related articles

Pregnancy does not significantly alter serum iodide concentrations in iodine-sufficient regions. Direct measurements show no decline in inorganic iodide during gestation, contrary to earlier indirect findings.

Area of Science:

  • Endocrinology
  • Reproductive Medicine
  • Nutritional Science

Background:

  • Indirect studies suggested pregnancy lowers inorganic iodide levels.
  • Direct measurements of serum iodide during pregnancy are scarce.
  • Understanding thyroid economy during gestation is crucial.

Purpose of the Study:

  • To directly measure serum inorganic iodide (PII) concentrations during pregnancy.
  • To investigate the relationship between gestation and PII levels.
  • To assess the influence of pregnancy on thyroid hormone economy.

Main Methods:

  • Direct measurement of serum inorganic iodide (PII) and urinary iodide.
  • Monitoring thyroid parameters (T4, free T4 index, TSH, thyroglobulin).
  • Measurements taken during the first, second, and third trimesters, and postpartum in 16 women.

Related Experiment Videos

Main Results:

  • No significant trend for decreased PII concentrations during pregnancy was observed.
  • Serum T4 and free T4 index were higher during pregnancy compared to postpartum.
  • TSH levels were not depressed in the first trimester; thyroglobulin remained stable.

Conclusions:

  • Pregnancy does not appear to significantly influence circulating iodide concentrations in iodine-sufficient populations.
  • Direct measurement of PII refutes earlier indirect suggestions of iodide decline during gestation.
  • Thyroid hormone levels show expected gestational changes, but iodide levels remain stable.