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Hepatic stimulator substance (HSS) is a novel liver-specific growth-promoting factor. Although HSS has been successfully crystallized, several properties of this protein have yet to be determined. This study shows that recombinant human HSS (rhHSS) is a dimer with a molecular mass of 31 kDa, the protein is weakly acidic and has an isoelectric point (pI) of(More)
OBJECTIVE To explore the ABCC8, KCNJ11, and GLUD1 gene mutations of the 11 patients diagnosed as congenital hyperinsulinism (CHI). METHODS A total of 11 CHI children hospitalized in Beijing Children's Hospital from November 2008 to February 2012 and their parents were chosen as the study subjects. Direct sequencing of PCR-DNA was used to analyze the 39(More)
OBJECTIVE To observe the changes of matrix metalloproteinases (MMPs) activities in pulmonary fibrosis rats. METHODS Eighty male SD rats were randomly divided into sham group (n = 40) and bleomycin group (BLM, n = 40), in which SD rats were injected with a single intratracheal dose of sham saline or bleomycin respectively. On day 1, 3, 7, 14, and 28(More)
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