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Postnatal development of nitrergic neurons in the myenteric plexus of rat stomach

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Abstract 

The effect of age on the proportion of nicotinamide adenine dinucleotide phosphate diaphorase (NADPHd)-positive neurons was investigated in the myenteric plexus of five different gastric areas of 1-day-, 1-week-, 2-week-, 1-month- and 2-month-old rats. Protein gene product 9.5 immunocytochemistry was used as a marker for the total enteric neuron population in order to establish the percentage of gastric nitrergic neurons in relation to age. The percentage of NADPHd-positive neurons in the proximal parts of the rat stomach (34–38%) is significantly higher than in the antral part (29%). This difference persists in all the age groups investigated. No significant relative increase with age of NADPHd-positive neurons could be observed in any of the areas studied. These findings imply that the increased nitrergic response in the rat proximal stomach as seen in pharmacological studies cannot be explained by an increased relative number of nitrergic neurons.

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Accepted: 31 March 1999

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Timmermans, JP., Adriaensen, D. & Lefebvre, R. Postnatal development of nitrergic neurons in the myenteric plexus of rat stomach. Histochemistry 111, 429–434 (1999). https://doi.org/10.1007/s004180050378

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  • DOI: https://doi.org/10.1007/s004180050378

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