Deusa Vendite

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Effects of undernutrition and handling during suckling on shuttle avoidance and footshock escape behavior and on plasma glucose levels of young rats

Developmental Psychobiology (1990)

João Batista Teixeira da Rocha Deusa Vendite

Abstract The present report examined the effects of undernutrition and handling on shuttle and footshock escape avoidance behavior of female rats. Rats were undernourished by feeding their dams a 7% casein diet from birth until 23 days of life. During this period rats were separated from their dams for 4 to 10 min. On days 23 and 24 after delivery, young rats were subjected to sessions in a two‐way shuttle avoidance task. The results demonstrated that nonstimulated and stimulated undernourished and stimulated well‐nourished rats escape faster than nonstimulated well‐nourished animals from footshock during the first session of shuttle avoidance. Further, undernutrition interacted with early stimulation, disrupting the shuttle avoidance behavior of female rats. These results suggest that both undernutrition and early handling can change the footshock behavior of young rats. Undernourished rats presented lower basal glucose levels than well‐nourished animals, but responded to shuttle avoidance testing in the same way as do normal rats, increasing the glucose levels.

Avoidance learning

10.1002/dev.420230206

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Citations (18)

Effects of Undernutrition during Suckling on Footshock Escape Behavior and on Related Neurochemical Parameters in Rats

Journal of Nutrition (1985)

Deusa Vendite Susana Tchernin Wofchuk Diogo O. Souza

Neurochemical

10.1093/jn/115.11.1418

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Citations (24)

Effects of undernutrition during suckling and inhibitory avoidance training on hypothalamic β-endorphin immunoreactivity of adult rats

Arquivos de Biologia e Tecnologia (1987)

Deusa Vendite João Batista Teixeira da Rocha Diogo O. Souza

Inhibitory control

Overtraining

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Memory channels in the rat: Effect of post-training application of potassium chloride on the hippocampus

Behavioral and Neural Biology (1979)

Elaine Elisabetsky Deusa Vendite Iván Izquierdo

Buzzer

Avoidance learning

10.1016/s0163-1047(79)92426-9

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Study of adenosine A2 receptors in membrane preparations from optic tectum of chicks.

Neurochemical Research (1999)

Carla I. Tasca Luciana F. Cardoso Deusa Vendite Diogo O. Souza

CGS-21680

Tectum

Adenosine A1 receptor

10.1023/a:1021017112717

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Effects of undernutrition during suckling and of post-training beta-endorphin administration on avoidance performances of adult rats.

PubMed (1987)

Deusa Vendite João Batista Teixeira da Rocha Carlos Fernando Mello Diogo O. Souza

1. The effects of undernutrition during suckling and of post-training beta-endorphin administration on avoidance task were investigated in adult rats. 2. Young rats were undernourished from delivery until weaning (21 days) by feeding their mothers a diet containing 8% protein (w/w). Mothers of well-nourished rats were fed a 20% protein diet. After weaning, both groups of rats were fed a 20% protein diet until 90-120 days of age, when they were subjected to behavioral sessions. 3. Acquisition was measured in training sessions and retention in test sessions 24 h after training. Beta-endorphin or saline (control) was injected ip immediately after training. Rats were subjected to shuttle and step-down inhibitory avoidance sessions using footshock of 0.2 or 0.8 mA intensity. 4. Undernutrition during suckling caused hyperreactivity to 0.2 mA footshocks. Beta-endorphin caused amnesia to shuttle avoidance task only in normal rats trained with 0.8 mA footshocks. In the step-down inhibitory avoidance task, beta-endorphin was amnesic only for normal rats and only for 0.2 mA footshocks. Beta-endorphin was not amnesic in undernourished rats.

Protein malnutrition

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Neonathal morphine treatment alters glutamate uptake in spinal cord of rats

Vinícius Souza dos Santos Joanna Ripoll Rozisky Yasmine Nonose Fernanda Urruth Fontella Deusa Vendite

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Glutamato e análogos bloqueiam o acúmulo de AMPc induzido por adenosina via receptores metabotrópicos

Luciana Farias Cardoso Ana Regina Lima Ramos Lucia Helena Martini Carla I. Tasca Deusa Vendite

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