Prenatal Lead Exposure and Childhood Executive Function and Behavioral Difficulties in Project Viva.

08:00 EDT 9th September 2019 | BioPortfolio

Summary of "Prenatal Lead Exposure and Childhood Executive Function and Behavioral Difficulties in Project Viva."

Lead is an established neurotoxicant and early life exposure to lead is associated with detrimental impacts on IQ and several neurobehavioral domains. Less is known, however, about effects of prenatal lead exposure below 5 µg/dL on executive function and on social, emotional and self-regulatory behaviors in childhood.


Journal Details

This article was published in the following journal.

Name: Neurotoxicology
ISSN: 1872-9711


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Medical and Biotech [MESH] Definitions

Neurologic disorders occurring in children following lead exposure. The most frequent manifestation of childhood lead toxicity is an encephalopathy associated with chronic ingestion of lead that usually presents between the ages of 1 and 3 years. Clinical manifestations include behavioral changes followed by lethargy; CONVULSIONS; HALLUCINATIONS; DELIRIUM; ATAXIA; and vomiting. Elevated intracranial pressure (HYPERTENSION, INTRACRANIAL) and CEREBRAL EDEMA may occur. (From Adams et al., Principles of Neurology, 6th ed, p1210-2)

Injury to the nervous system secondary to exposure to lead compounds. Two distinct clinical patterns occur in children (LEAD POISONING, NERVOUS SYSTEM, CHILDHOOD) and adults (LEAD POISONING, NERVOUS SYSTEM, ADULT). In children, lead poisoning typically produces an encephalopathy. In adults, exposure to toxic levels of lead is associated with a peripheral neuropathy.

A set of cognitive functions that controls complex, goal-directed thought and behavior. Executive function involves multiple domains, such as CONCEPT FORMATION, goal management, cognitive flexibility, INHIBITION control, and WORKING MEMORY. Impaired executive function is seen in a range of disorders, e.g., SCHIZOPHRENIA; and ADHD.

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Impairment of the vestibular function of both inner ears which can cause difficulties with balance, gait, VERTIGO, and visual blurring.

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