ArticleNaunyn-Schmiedeberg's archives of pharmacology1992
Effect of ageing on the number of neuronal noradrenaline uptake sites in the rat vas deferens.
Article in Naunyn-Schmiedeberg's archives of pharmacology, 1992. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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0 citing papers in PubMed, 7 citations in OpenAlex.
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Authors and funding
2 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Previous work has shown an age-related reduction in neuronal uptake of noradrenaline in the prostatic, but not in the epididymal portion of the rat vas deferens. In the present paper, the influence of ageing on the number of [3H]desipramine binding sites and on the effect of lithium on neuronal [3H]noradrenaline uptake were studied in the prostatic and epididymal portions of vasa deferentia from 4- and 20-month-old rats. The affinity for [3H]desipramine (Kd values) in the epididymal and prostatic portions did not change with age. However, ageing reduced the maximal number of [3H]desipramine binding sites (Bmax values) in the prostatic, but not in the epididymal portion. Lithium potentiated neuronal [3H]noradrenaline uptake only in the prostatic portion and this potentiation was not changed by ageing. The results showed differences in neuronal noradrenaline uptake between the two portions of the vas deferens. Furthermore, the data suggest that the age-related reduction in neuronal uptake in the prostatic portion is due to a reduction in the number of neuronal uptake sites for noradrenaline.
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