Quadrupole Magnetic Sorting of Porcine Islets of Langerhans
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چکیده
منابع مشابه
Continuous Quadrupole Magnetic Separation of Islets during Digestion Improves Purified Porcine Islet Viability
Islet transplantation (ITx) is an emerging and promising therapy for patients with uncontrolled type 1 diabetes. The islet isolation and purification processes require exposure to extended cold ischemia, warm-enzymatic digestion, mechanical agitation, and use of damaging chemicals for density gradient separation (DG), all of which reduce viable islet yield. In this paper, we describe initial pr...
متن کاملThe post-translational processing and intracellular sorting of PC2 in the islets of Langerhans.
Proinsulin conversion in the insulin secretory granule is mediated by two sequence-specific endoproteases related to the Kex2 homologues, PC2 and PC3 (Bennett, D. L., Bailyes, E. M., Nielsen, E., Guest, P. C., Rutherford, N. G., Arden, S. D., and Hutton, J. C. (1992) J. Biol. Chem. 267, 15229-15236; Bailyes, E. M., Bennett, D. L., and Hutton, J. C. (1992) Enzyme, in press). Radiolabeling studie...
متن کاملPhasic and tonic modes of depolarization-exocytosis coupling in beta-cells of porcine islets of Langerhans.
In response to depolarizations that open voltage dependent Ca2+ channels single porcine beta-cells display heterogeneous time courses of exocytosis. Some cells display phasic exocytosis that is triggered by individual or short burst of action potentials typically characteristic of glucose-induced electrical activity or brief voltage clamp depolarization. Other cells, singularly or additionally,...
متن کاملMONOPHASIC STATE OF INSULIN SECRETION IN ISOLATED RAT ISLETS OF LANGERHANS BY K+, Ca2+ AND GLUCOSE
Isolation of rat islets of Langerhans was carried out by using collagenase and the destruction of exocrine tissue was performed through the injection of Hanks' solution into the common bile duct. The identification of the islets was done by techniques including the use of a stereomicroscope against a black background. Vital staining was done by an injection of neutral red solution through t...
متن کاملGrowth of the islets of Langerhans.
factor; here according to current concepts the pituitary growth hormone may play an important part. In the case of the "pre-diabetic fathers," the factor of inheritance must be the determining factor. Jackson contends that when a woman gives a history of having had several large babies, the diagnosis of a pre-diabetic state is justified to such an extent that treatment should be started before ...
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ژورنال
عنوان ژورنال: Tissue Engineering Part C: Methods
سال: 2009
ISSN: 1937-3384,1937-3392
DOI: 10.1089/ten.tec.2008.0343