pancreatic juice


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Related to pancreatic juice: intestinal juice, bile

pancreatic juice

pancreatic juice (pănˌkrēătˈĭk, păngˌ–), secretions of the exocrine portion of the pancreas into the small intestine. The juice contains a number of important digestive enzymes, including trypsin, chymotrypsin, carboxypeptidase, lipase, and amylase. Pancreatic juice is alkaline in nature because of a high concentration of bicarbonate ions; this helps to neutralize the acidic gastric juice from the stomach. Secretion of pancreatic juice is stimulated by hormones of the duodenum, such as secretin and cholecystokinin, and by nervous impulses through the vagus nerve.
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The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Pancreatic Juice

 

a complex digestive juice secreted by the acinar cells of the pancreas and discharged into the duodenum.

The pancreatic juice is a clear, colorless liquid, alkaline in reaction (pH 8.3–8.6). Its specific gravity is 1.007–1.009. Among the enzymes it contains are trypsin, chymotrypsin, and carboxypeptidase, enzymes which split up proteins; lipase, which splits fats; and amylase and lactase, which break down carbohydrates. Pancreatic juice also contains proteins (mainly globulins), creatinine, urea, uric acid, and some trace elements. The average amount discharged in a healthy person in 24 hours is 1.5–2 liters. The secretion and discharge of the pancreatic juice is regulated by humoral and neural means. Other regulatory agents are secretin—a hormone produced by the acid stomach contents in the mucosa of the small intestine—and the secretory fibers of the vagus and sympathetic nerves. Physiological stimulators of pancreatic-juice flow are hydrochloric and some other acids, bile, and food.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.

pancreatic juice

[¦pan·krē¦ad·ik ′jüs]
(physiology)
The thick, transparent, colorless secretion of the pancreas.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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371) do not discuss the experiments of Banting and Best, they do discuss how the hormone secretin is produced by the mucous membrane of the intestine and is carried by the blood to the pancreas, where it stimulates the secretion of pancreatic juice. They also give some details of how secretin can be extracted from intestinal tissue: If the wall of the intestine of any animal is ground up with water and then filtered so as to free it of solid particles, the clear fluid so obtained will be found to contain large amounts of secretin; for when the fluid is injected into the blood of another animal, a very abundant secretion of pancreatic juice results.
The two functions of this organ are to create pancreatic juice, which helps digest food, and to produce insulin and glucagon, which control blood sugar levels.
Whereas early work had predominantly focused on the effects of alcohol on the muscle at the surface of the first part of the small intestine (i.e., duodenum), which controls secretions from the liver, pancreas, and gallbladder into the duodenum (i.e., the sphincter of Oddi), and on the pancreatic ducts (see Figure 1), attention has shifted over the past decade to the influence of alcohol on the clusters of secretory cells (i.e., acini) that produce pancreatic juice containing digestive enzymes.
"To diagnose chronic pancreatitis, EUS and pancreatic juice collection for IL-8 concentration can be performed sequentially under the same sedation at the same time," said Dr.
From the histophysiological point of view, BGs should produce an alkaline secretion (pH = 8.0-9.5) (Farkas & Gero) that is capable of, on the one hand, neutralizing the chymo acid that originates in the stomach, and on the other, supporting favorable pH conditions for adequate action by pancreatic juice enzymes (Krause, 2000; Leeson & Leeson, 1977).
The body overproduces thick, sticky, mucus, which blocks the pancreatic ducts and inhibits the flow of pancreatic juice. Food cannot be digested properly without pancreatic juice.
During the ultrasound, she can obtain a sample of the pancreatic juice, and we are analyzing these samples in the research lab to determine if we can identify new markers of early pancreatic cancer.