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  • Title: Histochemical studies on the morphology of the Golgi apparatus and on the enzymes of carbohydrate metabolism in various nuclei of the rat mesencephalon.
    Author: Iijima K, Imai K.
    Journal: Histochemistry; 1976 Feb 26; 46(3):209-27. PubMed ID: 1248952.
    Abstract:
    Detailed histochemical studies have been conducted on the distribution of various enzymes such as thiamine pyrophosphatase, alpha-glucan phosphorylase, hexokinase, glucose-6-phosphate dehydrogenase, aldolase, lactate dehydrogenase and succinate dehydrogenase in various components of the nucleus Edinger-Westphali, nucleus n. oculomotorii, nucleus ruber and nucleus niger of healthy adult male Wistar strain rats. The thiamine pyrophosphatase reaction showed the morphological patterns of the Golgi apparatus characteristic for each nucleus. The Golgi apparatus was well developed in the nucleus Edinger-Westphali, composing a network of highly fenestrated plates in the nucleus n. oculomotorii and nucleus ruber, and a simple network in the nucleus niger. These results indicate that the former three nuclei need a rich energy supply and argue against the possibility that the four nuclei have a secretory role. The neurons of the nucleus Edinger-Westphali may derive their energy mainly from glucose of the circulating blood, but glial cells may serve as energy donators to the neurons in the pars compacta of the nucleus niger, and the neurons of the other nuclei may derive energy from both sources. These conclusions are consistent with the morphological patterns of the Golgi apparatus.
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