نتایج جستجو برای: preproinsulin
تعداد نتایج: 224 فیلتر نتایج به سال:
Elevations in Circulating Methylated and Unmethylated Preproinsulin DNA in New-Onset Type 1 Diabetes
Elevated ratios of circulating unmethylated to methylated preproinsulin (INS) DNA have been suggested to reflect β-cell death in type 1 diabetes (T1D). We tested the hypothesis that absolute levels (rather than ratios) of unmethylated and methylated INS DNA differ between subjects with new-onset T1D and control subjects and assessed longitudinal changes in these parameters. We used droplet digi...
Previous studies have shown that lactogenic hormones stimulate beta-cell proliferation and insulin production in pancreatic islets. However, all such studies have been conducted in cells incubated in medium containing glucose. Since glucose independently stimulates beta-cell replication and insulin production, it is unclear whether the effects of prolactin (PRL) on insulin gene expression are e...
Ribosomes synthesizing nascent secretory proteins are targeted to the membrane by the signal recognition particle (SRP), a small ribonucleoprotein that binds to the signal peptide as it emerges from the ribosome. SRP arrests further elongation, causing ribosomes to stack behind the arrested ribosome. Upon interaction of SRP with its receptor on the ER membrane, the translation arrest is release...
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