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Neurobehavioral Alteration in Rodents Following Developmental Exposure To Aluminum

Behavioural Pathophysiology Section Laboratorio di Fisiopatologia di Organo e di Sistema Istituto Superiore di Sanità Roma, Italy

Judith Rankin

Behavioural Pathophysiology Section Laboratorio di Fisiopatologia di Organo e di Sistema Istituto Superiore di Sanità Roma, Italy, Department of Epidemiology and Public Health University of Newcastle Newcastle upon Tyne United Kingdom

Daniela Santucci

Behavioural Pathophysiology Section Laboratorio di Fisiopatologia di Organo e di Sistema Istituto Superiore di Sanità Roma, Italy

Aluminum (Al) is one of the most abundant metals in the earth's crust, and humans can be exposed to it from several sources. It is present in food, water, pharmaceutical compounds, and in the environment, e.g., as a result of acid rain leaching it from the soil. Exposure to Al has recently been implicated in a number of human pathologies, but it has not yet been definitely proved that it plays a major causal role in any of them. In this paper we review the effects of developmental exposure of laboratory animals to Al salts as a model for human pathological conditions. The data presented show behavioral and neurochemical changes in the offspring of AL-exposed mouse dams during gestation, which include alterations in the pattern of ultrasonic vocalizations and a marked reduction in central nervous system (CNS) choline acetyltransferase activity. Prenatal Al also affects CNS cholinergic functions under Nerve Growth Factor (NGF) control, as shown by increased central NGF levels and impaired performances in a maze learning task in young-adult mice. The need for more detailed studies to evaluate the risks for humans associated with developmental exposure to Al, as well as the importance of using more than one strain of laboratory animal in the experimental design, is emphasized.

Key Words: 3. Key words: aluminum • endocrine disruptions • learning • neurobehavioral development • NGF • rodents • ultrasonic vocalization.

Toxicology and Industrial Health, Vol. 14, No. 1-2, 209-221 (1998)
DOI: 10.1177/074823379801400113


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