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The effects of baclofen on the feeding behaviour and body weight of vagally stimulated rats

100%

Krolczyk G., Laskiewicz J., Sobocki J., Matyja A., Kolasinska-Kloch W., Thor P. J.

Journal of Physiology and Pharmacology

2005

tom 56

nr 1

It is hypothesised that the GABA(B) receptor agonist baclofen increases or has no effect on food intake, and electrical stimulation of vagal nerves decreases food intake. The aim of this study was to evaluate the effects of baclofen in vagally stimulated rats. Material and methods: Thirty two Wistar rats were divided into five groups: group A scheduled for microchip implantation for vagal stimulation, group B for sham operation, group C for microchip implantation and baclofen medication, group D for baclofen medication only and group E for gastric motility evaluation under influence of baclofen. The following parameters were then evaluated: food intake and body mass, gastric motility, leptin, insulin, and glucose serum levels. Results: In the comparison of groups B and A, daily food intake and body weight gain decreased by 17% (p<0.05) and by 22% (p<0.05), respectively. Baclofen alone (group D) did not significantly change either food intake nor diurnal body weight compared to the controls, but when used in conjunction with the microchip (group C) it did significantly reduce effect of vagal neuromodulation (p<0.05). Furthermore, a significant decrease in leptin and glucose levels was detected in group C: 677 to 165 pg/ml (p<0.05) and 5,93 to 4,88 mmol/l (p<0.05), respectively. The administration of baclofen stimulated significantly gastric motility and elicited irregular motor migrating complex (327±200 against control 255±52 cmH2O/s). Conclusions: These results suggest that microchip vagal neuromodulation through increased vagal afferent activity induces an alteration in the feeding behaviour and decreases nocturnal food intake and body weight. These effects were partially attenuated by baclofen. The data suggests that GABA(B) receptors play an important role in the pathomechanism of attenuation of food intake induced by vagal nerve stimulation.

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51%

Brown G. W.

Weterynaria po Dyplomie

2019

tom 20

nr 6

Ograniczanie wyników

1 Journal of Physiology and Pharmacology

1 Weterynaria po Dyplomie

1 Brown G. W.

1 Kolasinska-Kloch W.

1 Krolczyk G.

1 Laskiewicz J.

1 Matyja A.

1 Sobocki J.

1 Thor P. J.

1 2019

1 2005

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The effects of baclofen on the feeding behaviour and body weight of vagally stimulated rats

Dziesięć najważniejszych zatruć powodujących hipoglikemię u psów