[Congenital hypothyroidism].

Bol Med Hosp Infant Mex

Departamento de Ediciones Médicas, Hospital Infantil de México Federico Gómez, México D.F., México. Electronic address:

Published: June 2015

AI Article Synopsis

  • Congenital hypothyroidism (CH) can lead to preventable intellectual disabilities, making early diagnosis and treatment critical by primary care physicians.
  • Screening for CH should occur between 2 to 5 days after birth using capillary blood from a heel prick, followed by confirming thyroid hormone levels in venous blood.
  • The usual treatment involves administering levothyroxine (10-15μg/kg/day) without interruption in the first three years of life to prevent negative impacts on neurodevelopment, particularly for at-risk groups such as preterm infants or those with Down syndrome.

Article Abstract

Congenital hypothyroidism (CH) is a cause of preventable mental retardation; therefore, timely diagnosis and treatment by the primary care physician is very important. CH screening must be performed between the second and fifth days of life with capillary blood done with a heel prick and must be confirmed by measurement of thyroid hormones in venous blood. The most common cause of CH is thyroid dysgenesis, which may be identified by a thyroid scan carried out before initiating treatment. Treatment should be with levothyroxine (10-15μg/kg/day) and should not be delayed or suspended during the first 3 years of life due to the deleterious effect on neurodevelopment in case of low thyroid hormones during this time. Preterm or sick infants or those with Down syndrome require special consideration. This article provides diagnostic and therapeutic algorithms for CH.

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.bmhimx.2015.05.001DOI Listing

Publication Analysis

Top Keywords

thyroid hormones
8
[congenital hypothyroidism]
4
hypothyroidism] congenital
4
congenital hypothyroidism
4
hypothyroidism preventable
4
preventable mental
4
mental retardation
4
retardation timely
4
timely diagnosis
4
diagnosis treatment
4

Similar Publications

Background: It is known that subclinical hypothyroidism (SCH) often converts to euthyroidism. However, the mechanism of such changes is unclear and can only be speculated. This difficulty is likely due to limitations in diagnostic guidelines and their interpretation.

View Article and Find Full Text PDF

Background: This study aimed to evaluate the impact of combined levothyroxine (LT4) and triiodothyronine (LT3) therapy on quality of life in patients with primary hypothyroidism.

Methods: In a randomized, double-blind, parallel-group trial, 151 Iranian patients diagnosed with primary hypothyroidism between 2020 and 2021 were enrolled. One group received LT4 alone (n = 80), while the other received LT4 and LT3 (n = 71) for a minimum of six months.

View Article and Find Full Text PDF

Melatonin, modulation of hypothalamic activity, and reproduction.

Vitam Horm

January 2025

Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Ciudad Autónoma de Buenos Aires, Argentina; Centro de Estudios Biomédicos Básicos, Aplicados y Desarrollo (CEBBAD), Universidad Maimónides, Ciudad Autónoma de Buenos Aires, Argentina. Electronic address:

Light is the most reliable environmental cue allowing animals to breed successfully when conditions are optimal. In seasonal breeders, photoperiod (length of daylight) information is sensed by the eyes and transmitted to the suprachiasmatic nucleus, the master clock region located in the hypothalamus. This structure has a 24-h firing rhythm involving a cycle of clock protein synthesis and degradation, and provides the timing to synchronize the synthesis and release of melatonin, the chemical signal that transduces the photoperiod information.

View Article and Find Full Text PDF

Multi-metal mixture exposure and cognitive function in urban older adults: The mediation effects of thyroid hormones.

Ecotoxicol Environ Saf

January 2025

Department of Sanitary Chemistry, School of Public Health, Guangxi Medical University, Nanning 530021, China; Guangxi Key Laboratory of Environmental Exposomics and Entire Lifecycle Health, Guilin Medical University, China. Electronic address:

The existing studies on the association between multi-metal mixture exposure and cognitive function in the older adults are limited and controversial, with no studies considering the mediating effect of thyroid hormones on the connection between them. This study of 441 urban older adults assessed 21 urinary metal levels and cognitive function using the Mini-Mental State Examination (MMSE). Urinary metal levels were measured via inductively coupled plasma mass spectrometry (ICP-MS), and thyroid hormones levels were obtained from medical records.

View Article and Find Full Text PDF

Production of biologically active recombinant salmon calcitonin in Escherichia coli and fish cell line.

Arch Microbiol

January 2025

Aquatic Animal Health Laboratory, PG & Research Department of Zoology, C. Abdul Hakeem College, Melvisharam, Ranipet, Tamil Nadu, 632509, India.

Salmon calcitonin is a small peptide hormone synthesised and released by a specialised gland called ultimobranchial gland in fish. This hormone has been used to treat osteoporosis for over 50 years. The aim of this study was to compare the efficacy of five repeats of salmon calcitonin (5sCT) produced in two different hosts (bacteria and fish cell line).

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!