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The Exocrine Pancreas

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TLDR
This chapter describes the neurohumoral pathways that mediate the pancreatic response to a meal as well as details of the cellular mechanisms that are necessary for the organ responses, including protein synthesis and transport and ion transports, and the regulation of these responses by intracellular signaling systems.
Abstract
The secretions of the exocrine pancreas provide for digestion of a meal into components that are then available for processing and absorption by the intestinal epithelium. Without the exocrine pancreas, malabsorption and malnutrition result. This chapter describes the cellular participants responsible for the secretion of digestive enzymes and fluid that in combination provide a pancreatic secretion that accomplishes the digestive functions of the gland. Key cellular participants, the acinar cell and the duct cell, are responsible for digestive enzyme and fluid secretion, respectively, of the exocrine pancreas. This chapter describes the neurohumoral pathways that mediate the pancreatic response to a meal as well as details of the cellular mechanisms that are necessary for the organ responses, including protein synthesis and transport and ion transports, and the regulation of these responses by intracellular signaling systems. Examples of pancreatic diseases resulting from dysfunction in cellular...

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Citations
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Journal ArticleDOI

Acute Pancreatitis: A Multifaceted Set of Organelle and Cellular Interactions

TL;DR: Emerging findings that stressors that cause acute pancreatitis initially cause injury to organelles of the acinar cell (endoplasmic reticulum, mitochondria, and endolysosomal-autophagy system) are emphasized and considered to create a discussion for clinical trial treatment and design options.
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Exocrine pancreatic insufficiency in adults: A shared position statement of the Italian association for the study of the pancreas

TL;DR: The main diseases associated with exocrine pancreatic insufficiency (EPI) which are of common interest to internists/gastroenterologists, oncologists and surgeons are covered, fully aware that EPI may also occur together with many other diseases, but less frequently.
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Abnormalities of the Exocrine Pancreas in Type 1 Diabetes

TL;DR: Evidence is collected that supports the hypothesis that T1D is a combined endocrine-exocrine disease in which the loss of functional beta cell mass is most clinically apparent, and that this loss is secondary to beta cell loss.
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The Emerging Role of Smoking in the Development of Pancreatitis

TL;DR: Specific constituents of cigarette smoke, including nicotine and its metabolites, could mediate effects on the pancreas, and may be alcohol independent but synergize with alcohol.
References
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Signal integration in the endoplasmic reticulum unfolded protein response

TL;DR: Together, at least three mechanistically distinct arms of the UPR regulate the expression of numerous genes that function within the secretory pathway but also affect broad aspects of cell fate and the metabolism of proteins, amino acids and lipids.
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XBP1 mRNA Is Induced by ATF6 and Spliced by IRE1 in Response to ER Stress to Produce a Highly Active Transcription Factor

TL;DR: The transcription factor XBP1, a target of ATF6, is identified as a mammalian substrate of such an unconventional mRNA splicing system and it is shown that only the spliced form of X BP1 can activate the UPR efficiently.
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Intracellular aspects of the process of protein synthesis

G E Palade
- 01 Aug 1975 - 
TL;DR: The title of the Nobel Lecture of George Palade (1 August, p. 347) should have been "Intracellular aspects of the process of protein secretion."
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Regulated Translation Initiation Controls Stress-Induced Gene Expression in Mammalian Cells

TL;DR: Protein kinases that phosphorylate the alpha subunit of eukaryotic initiation factor 2 (eIF2alpha) are activated in stressed cells and negatively regulate protein synthesis, resulting in the induction of the downstream gene CHOP (GADD153).
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An Integrated Stress Response Regulates Amino Acid Metabolism and Resistance to Oxidative Stress

TL;DR: A signaling pathway initiated by eIF2alpha phosphorylation protects cells against metabolic consequences of ER oxidation by promoting the linked processes of amino acid sufficiency and resistance to oxidative stress.
Trending Questions (1)
How does the endocrine system of the pancreas differ from the exocrine system?

The text does not provide information about the endocrine system of the pancreas.