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  • Title: Changes in nerve growth factor content of the submaxillary gland in the genetically dystrophic (mdx) mouse.
    Author: Hirota M, Furukawa Y, Shinoda I, Yoneoka T, Ito T, Furukawa S, Hayashi K.
    Journal: J Neurol Sci; 1994 Feb; 121(2):176-82. PubMed ID: 8158212.
    Abstract:
    We evaluated the nerve growth factor (NGF) contents in the submaxillary gland of the mdx mouse, a model for Duchenne muscular dystrophy (DMD), and found that the NGF and NGF mRNA contents in this organ, where extraordinarily high amounts of NGF are synthesized and stored independently of development or maintenance of the nervous system, were markedly elevated in the male mdx mouse at 8 and 11 weeks of age. However, the NGF content of this organ in 4-week-old male mdx mice was lower than that of control mice although statistical significance of difference was not observed. In the mdx female mouse, the submaxillary NGF content was significantly lower than that of the normal mouse at 4 weeks of age, but was similar to that of the normal at 8 and 11 weeks of age. The amounts of epidermal growth factor (EGF), another protein that is known to be sexually and developmentally regulated in the mouse submaxillary gland like NGF, was found to be also significantly increased in this organ of the male mdx mouse at 8 and 11 weeks of age, and to be significantly decreased in that of the female mdx mouse at 4 weeks of age. The parallel changes in NGF and EGF contents during development of the submaxillary gland suggest that the mdx mouse suffers from some abnormality in the development of this organ.(ABSTRACT TRUNCATED AT 250 WORDS)
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