Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UNIPROT:P01275 (glucagon)
 26,492 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Reported are eight patients with idiopathic chronic pancreatitis and two patients with alcoholic pancreatitis who had near total distal pancreatectomy for disabling pain and underwent simultaneous segmental pancreatic autotransplantation of the body and tail of the gland to the femoral area in an attempt to prevent or delay the onset of diabetes. The median follow-up period was 31 months, and follow-up study in nine patients ranged from 24 to 54 months. Patency of the grafts was determined by angiography and selected percutaneous venous assays for insulin. Islet cell function was determined by oral glucose tolerance tests, intravenous (I.V.) glucose tolerance tests, and I.V. glucagon stimulation studies. Segmental autotransplantation was technically successful in eight patients, only one of whom required insulin (at 2 years after grafting). The other seven patients with technically successful grafts have remained insulin independent, including two patients who later underwent pyloric preserving pancreatoduodenectomy for completion pancreatectomy. Variable pain relief was observed in patients who underwent near total pancreatectomy, but pain was unrelieved in those patients who underwent limited distal resection. Patients with idiopathic pancreatitis appear to have better pain relief and preservation of endocrine function than alcoholic patients. Segmental pancreatic autotransplantation prevents or delays the onset of diabetes mellitus and should be considered as an alternative for those patients who require extensive pancreatic resection for chronic pancreatitis.
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PMID:Segmental pancreatic autotransplantation with pancreatic ductal occlusion after near total or total pancreatic resection for chronic pancreatitis. Results at 5- to 54-month follow-up evaluation. 352 8

The release of insulin and glucagon in cirrhotic rats was examined. Rats were made cirrhotic by a combination treatment of carbon tetrachloride (CCl4) and phenobarbitone. Liver cirrhosis was verified by histologic findings. Both basal and stimulated release of insulin from isolated pancreatic islets, in vitro, were decreased significantly in cirrhotic rats, as compared with control rats. Basal, but not stimulated, levels of glucagon, in vitro, were reduced significantly in cirrhotic rats. Circulating levels of plasma insulin, glucagon, glucose, bilirubin, and amylase levels were unaffected in cirrhotic rats when compared with control rats. There were no signs of pancreatitis. The results indicated that the release of insulin and glucagon is depressed in cirrhotic rats and in rats treated with phenobarbitone and CCl4. Clearance of circulating insulin and glucagon by the liver was apparently reduced, since circulating levels of insulin and glucagon were unaltered in all treated rats.
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PMID:Insulin and glucagon production in experimental cirrhosis. 354 4

Radioimmunoassay was employed to study blood content of insulin, C-peptide and glucagon in 78 patients with chronic pancreatitis. It was revealed that during exacerbation, there was an increase in the content of insulin and glucagon and, to a lesser degree, in that of C-peptide. During remissions, part of the patients showed insular deficiency which increased with disease standing. When pancreatitis lasted from 1 to 5 years or from 5 to 10 years, diabetes mellitus was recorded in 9.4% of the patients and in 16% of the patients, respectively.
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PMID:[Incretory changes in the pancreatic hormones in chronic pancreatitis]. 382 27

In mice fed a choline-deficient diet containing 0.5% DL-ethionine (CDE) profound hypoglycemia develops, as do signs of shock, and the mice die of acute hemorrhagic pancreatitis (AHP). When fed a choline-supplemented diet containing 0.5% DL-ethionine (CSE), however, the mice have a chronic nonhemorrhagic pancreatitis with focal necrosis, do not show symptoms of shock, and survive. For investigation of the mechanism of hypoglycemia and the onset of shock in AHP, serum and pancreatic insulin and glucagon contents, serum glucose levels, and the morphologic characteristics of pancreatic islets were evaluated in mice fed laboratory Chow (LC); a choline-supplemented (CS) diet; a choline-deficient (CD) diet; or the CSE and CDE diets for 1, 2, or 3 days. The results indicate that onset of shock in animals with AHP may be due to hypoglycemia resulting from abnormal release of glucoregulatory hormones and their inability to maintain glucose output from liver and/or caused by active proteinases released from necrotic pancreas.
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PMID:Acute hemorrhagic pancreatitis in mice: A study of glucoregulatory hormones and glucose metabolism. 388 Oct 38

Studies on diabetes mellitus in tropical zones indicate that its traditional link with overnutrition depends not only on the economic level, but also on some ethnic, social and cultural factors. At present, we insist on the unexpected relationship between diabetes mellitus and undernutrition either in some major infantile forms (described in India and Nigeria) with calcareous pancreatitis, or some less severe forms observed in Africa. This tropical diabetes mellitus occurs in some patients with normal weight or inferior to normal; it is not very ketogenic, responding to glucagon stimulation, and seems more frequent in the chronic malnutrition areas. So, it is tempting to utilize diabetes mellitus as an indicator of nutritional disorder or of dietary toxic factors. However, we ought to consider it within a multifactor surroundings associating genetic determinism and the other factors of tropical aggressiveness.
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PMID:[Tropical diabetes mellitus, a new nutritional indicator?]. 392 7

Microcirculatory derangements in the pancreas associated with acute pancreatitis may contribute to a low-flow state and lead to pancreatic necrosis. This study investigated the effects of glucagon, a selective mesenteric arterial dilator, on pancreatic ischemia in canine bile-trypsin-induced pancreatitis (BTP). Measurements of cardiac Index (CI), total pancreatic blood flow (QP), pancreatic oxygen consumption (O2CP), and pancreatic arteriovenous shunt flow (QAVS) were obtained prior to and after inducing BTP. Bile-trypsin-induced pancreatitis was induced in 18 dogs. Nine received lactated Ringer's solution alone (LRPAN) at 6.5 mL/kg/hr, nine received lactated Ringer's solution plus continuous Intravenous (IV) glucagon hydrochloride (GLUPAN) at 1.0 micrograms/kg/min, and nine undergoing periportal dissection without BTP received IV glucagon (GLUCON). Following BTP, CI, QP, and O2CP decreased significantly and QAVS remained unchanged in crystalloid-treated animals (LRPAN). Glucagon administration (GLUPAN) transiently increased CI and QP but failed to improve O2CP and did not change QAVS. The decrease in O2CP observed after BTP in association with a constant QAVS suggests a metabolic block to oxygen uptake at the cellular level. Glucagon in pharmacologic doses does not reverse abnormalities in O2CP and is therefore of questionable physiologic benefit in the treatment of acute pancreatitis.
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PMID:Efficacy of pharmacologic glucagon in acute experimental pancreatitis. 397 Jun 71

Four patients with pancreatic disease received glucagon intravenously. In two a definite decrease in the volume of pancreatic exocrine secretion was shown, and in one of these pancreatic juice protein and bicarbonate levels also fell. Two patients with acute pancreatitis had pronounced relief of epigastric pain associated with falls in plasma amylase after intravenous glucagon.Several mechanisms could account for the possible beneficial effect of glucagon in pancreatitis, and further studies of its use in this disease are justified.
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PMID:Possible use of glucagon in the treatment of pancreatitis. 557 5

Plasma immunoreactive glucagon, C-peptide and substrates (glucose, lactate, and alanine) were measured in 21 pancreatectomized patients and 28 patients with chronic calcifying pancreatitis during arginine infusion. Results were compared with those obtained in control and in insulin-dependent diabetic subjects, and in pancreatectomized subjects receiving a combined infusion of glucagon and arginine or somatostatin and arginine. Plasma immunoreactive glucagon in the pancreatectomized patients was 230 +/- 26 pg/ml (control subjects 100 +/- 13 pg/ml, p less than 0.001), but was unchanged following arginine or somatostatin. Following ethanol extraction of plasma it became undetectable. Similar results were obtained in patients with chronic pancreatitis. In contrast to the insulin-dependent diabetic subjects, no changes in blood glucose, lactate, and alanine concentrations were found during arginine infusion in the pancreatectomized or pancreatitis patients. Addition of glucagon restored the metabolic response to arginine in the pancreatectomized patients. Our results confirm previous smaller studies that in pancreatectomized patients, A cell function is absent or insignificant.
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PMID:Absence of islet alpha cell function in pancreatectomized patients. 612 Aug 75

Patients with chronic recurrent pancreatitis were examined for the blood content of insulin, glucagon, somatostatin (SS), somatotropin (STH), cAMP and cGMP. The blood content of insulin, glucagon and STH was normal, that of SS and cAMP elevated, and that of cGMP lowered. In severe pancreatitis, the endocrine part of the pancreas was activated. The relationship was established between the level of amylasemia and the activity of islet cells and the blood content of cGMP. The compensatory importance of hypersecretion of SS and glucagon for pancreatitis exacerbation is demonstrated. The role of cyclic nucleotides in the pancreatic activity is discussed.
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PMID:[Pancreatic hormones and cyclic nucleotides in the blood in chronic recurrent pancreatitis]. 615 52

In the course of acute pancreatitis an edematous and a hemorrhagic necrotizing pattern have to be discerned. Clinical symptoms are upper abdominal pain, shock, and metabolic derangements. Only subtle diagnostic procedures are appropriate as for instance x-ray of the chest and x-ray of the abdomen. Laboratory exams are of little value. For conservative treatment atropin, glucagon, calcitonin and antibiotics are being used nowadays, where as the efficacy of aprotinin is controversial. In the Department of Surgery of the Freiburg University Medical School an attempt at early surgery is made. In edematous pancreatitis the bursa omentalis is drained; in addition a T-drain has to be entered into the ductus choledochus. Seqmental necrosis of the pancreas may require resection of the left part of the pancreas. Necrotic areas of the head of the pancreas have to be removed by ablation. If there is total necrosis only drainage with an irrigation-suction pattern is possible.
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PMID:[Diagnosis and therapy of acute pancreatitis (author's transl)]. 615 55


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