Regulation of Pancreatic Exocrine Secretion in Ruminants: A Review , ,

Croom, W. J.; Bull, Leonard S.; Taylor, Ian L.

doi:10.1093/jn/122.1.191

Cited by 37 publications

(24 citation statements)

References 49 publications

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“…In numerous studies it was shown that shortchain fatty acids, especially propionic and butyric acids, are the main factors responsible for pancreatic enzymes secretion in ruminants (Croom et al, 1992;Żebrowska et al, 2001). Thus, increased concentration of butyric and isoacids in rumen fluid in sheep supplemented with QUE diet (our unpublished data) could be also the reason of elevated activity of pancreatic lipase.…”

Section: Discussionmentioning

confidence: 58%

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The effect of lingonberry leaves and oak cortex addition to sheep diets on pancreatic enzymes activity

Majewska¹,

Pająk²,

Skomiał³

et al. 2017

J. Anim. Feed Sci.

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Section: Discussionmentioning

confidence: 58%

“…In contrast to monogastric animals, in ruminants the secretion of pancreatic juice and bile is permanent because of the constant flow of digesta to the duodenum, without separating period between feeding (Croom et al, 1992).…”

Section: Discussionmentioning

confidence: 97%

The effect of lingonberry leaves and oak cortex addition to sheep diets on pancreatic enzymes activity

Majewska¹,

Pająk²,

Skomiał³

et al. 2017

J. Anim. Feed Sci.

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“…Further, pancreatic endocrine secretion is sensitive to CCK and secretin in ruminants (Croom et al, 1992). Secreted CCK from the fundus of the small intestine is known to stimulate pancreatic secretion through the afferent pathway of the vagus nerve (Li and Owyang, 1993; Eastwood et al, 1998).…”

Section: Resultsmentioning

confidence: 99%

Effect of Oral Administration of Intact Casein on Gastrointestinal Hormone Secretion and Pancreatic α-Amylase Activity in Korean Native Steer

Lee

Choi²,

Jin

et al. 2013

Asian Australas. J. Anim. Sci

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Three Korean native steers (779±24 kg) fitted with duodenal cannulas were used in a 3×3 Latin square design to investigate the influence of oral administration of soluble proteins, intact casein (IC) and acid hydrolyzed casein (AHC), on gastrointestinal hormone (GIH) secretion in the blood and pancreatic α-amylase activity in the duodenum. Oral treatment consisted of a basic diet (control), IC (C+100% protein), or AHC (C+80% amino acid, 20% peptide) for 21 d. Blood and duodenum samples were collected for measurement of serum GI hormones, and pancreatic α-amylase activity was determined at 900, 1030, 1330, 1630, and 1930 h after feeding on d 21 of treatment. The levels of serum cholecystokinin (CCK) and secretin in the IC treatment group were higher compared to the other treatment groups (p<0.05). In addition to the changes in CCK and secretin levels upon IC treatment, the pancreatic α-amylase activity in the duodenum was higher in the IC group compared to the control diet group (p<0.05). The response of serum ghrelin to IC and AHC treatment was in accordance with the response of serum secretin. The level of peptide fragments flowing in the duodenum was higher in the IC treatment group than the other treatment groups (p<0.05). In conclusion, this study demonstrated that an increase in duodenal CCK and secretin upon IC oral administration increased pancreatic α-amylase secretion. In addition, ghrelin may be associated with GI hormone secretion in Korean native steers.

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“…Croom et al. () also reported that the nervous system plays a major role in the control of pancreatic exocrine secretion and stated that stimulation of the vagus nerve causes enhanced secretion of α ‐amylase. Because the vagus nerve interfaces with the parasympathetic nervous system, it seems logical that, as adrenaline or cortisol blocks this interface, α ‐amylase activity would be reduced.…”

Section: Discussionmentioning

confidence: 99%

Effects of realimentation after nutrient restriction during mid‐ to late gestation on pancreatic digestive enzymes, serum insulin and glucose levels, and insulin‐containing cell cluster morphology

Keomanivong

Camacho

Lemley

et al. 2016

Animal Physiology Nutrition

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This study examined effects of stage of gestation and nutrient restriction with subsequent realimentation on maternal and foetal bovine pancreatic function. Dietary treatments were assigned on day 30 of pregnancy and included: control (CON; 100% requirements; n = 18) and restricted (R; 60% requirements; n = 30). On day 85, cows were slaughtered (CON, n = 6; R, n = 6), remained on control (CC; n = 12) and restricted (RR; n = 12), or realimented to control (RC; n = 11). On day 140, cows were slaughtered (CC, n = 6; RR, n = 6; RC, n = 5), remained on control (CCC, n = 6; RCC, n = 5) or realimented to control (RRC, n = 6). On day 254, the remaining cows were slaughtered and serum samples were collected from the maternal jugular vein and umbilical cord to determine insulin and glucose concentrations. Pancreases from cows and foetuses were removed, weighed, and subsampled for enzyme and histological analysis. As gestation progressed, maternal pancreatic α-amylase activity decreased and serum insulin concentrations increased (p ≤ 0.03). Foetal pancreatic trypsin activity increased (p < 0.001) with advancing gestation. Foetal pancreases subjected to realimentation (CCC vs. RCC and RRC) had increased protein and α-amylase activity at day 254 (p ≤ 0.02), while trypsin (U/g protein; p = 0.02) demonstrated the opposite effect. No treatment effects were observed for maternal or foetal pancreatic insulin-containing cell clusters. Foetal serum insulin and glucose levels were reduced with advancing gestation (p ≤ 0.03). The largest maternal insulin-containing cell cluster was not influenced by advancing gestation, while foetal clusters grew throughout (p = 0.01). These effects indicate that maternal digestive enzymes are influenced by nutrient restriction and there is a potential for programming of increased foetal digestive enzyme production resulting from previous maternal nutrient restriction.

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Regulation of Pancreatic Exocrine Secretion in Ruminants: A Review , ,

Cited by 37 publications

References 49 publications

The effect of lingonberry leaves and oak cortex addition to sheep diets on pancreatic enzymes activity

The effect of lingonberry leaves and oak cortex addition to sheep diets on pancreatic enzymes activity

Effect of Oral Administration of Intact Casein on Gastrointestinal Hormone Secretion and Pancreatic α-Amylase Activity in Korean Native Steer

Effects of realimentation after nutrient restriction during mid‐ to late gestation on pancreatic digestive enzymes, serum insulin and glucose levels, and insulin‐containing cell cluster morphology

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