کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9114692 1156754 2005 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Lack of insulin-like growth factor binding protein-3 protease activation by venous cannulation
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی علوم غدد
پیش نمایش صفحه اول مقاله
Lack of insulin-like growth factor binding protein-3 protease activation by venous cannulation
چکیده انگلیسی
Disruption of the endothelium activates thrombogenic and fibrinolytic enzymes that cleave insulin-like growth factor binding protein-3 (IGFBP-3) in vitro. The aim of the present human study was to determine whether blood sampling, i.e., venous stasis and cannulation increase IGFBP-3 proteolysis before and/or after surgery by activating these enzymes. Serum samples obtained immediately after cannulation were compared with samples obtained from a previously inserted venous catheter. Cannulation did not increase serum IGFBP-3 proteolytic activity pre- and post-operatively, as determined by in vitro degradation of 125I-IGFBP-3. Furthermore, there was no effect on in vivo IGFBP-3 fragmentation assessed by western immunoblot. In addition, a standardized venous stasis did not affect IGFBP-3 proteolytic activity or fragmentation. Comparison of IGFBP-3 proteolytic activity before and after surgery demonstrated a significant post-operative increase. However, this could not be demonstrated immediately after the initial cannulation, due to a large individual variation at this time-point before surgery.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Growth Hormone & IGF Research - Volume 15, Issue 3, June 2005, Pages 238-242
نویسندگان
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