. . . . . . . "[Since none of the clinically healthy relatives showing serum mitogenic activity was positive for the NF1 mutation analysis and, conversely, those having altered exons 31 or 32 of NF1 gene did not show any mitogenic activity; these results suggest that the phenotype expression of NF1 might depend not only on the NF1 mutations per se, but also on other genetic or epigenetic factors, such as serum glial proliferating molecules.]. Sentence from MEDLINE/PubMed, a database of the U.S. National Library of Medicine."@en . . . . . "2017-02-19"^^ . . "Gene-disease associations inferred from text-mining the literature."@en . "DisGeNET evidence - LITERATURE"@en . "2017-10-17T13:14:57+02:00"^^ . . . . . . . . . . . "v5.0.0.0" . "v5.0.0" .