Interactions between bile acids (taurocholate, TC; taurochenodeoxycholate, TCDC; or taurodeoxycholate, TDC) and digestive products (essential amino acids, EAA or monoolein, MO) in the lumen of the proximal small bowel, affecting pancreatic enzyme secretion and gallbladder contraction, were studied in 77 healthy volunteers by a perfusion method. Perfusion of EAA or MO caused significant increase...

The effect of feed restriction and enzymatic supplementation on intestinal and pancreatic enzyme activities and weight gain was studied in broiler chickens. Quantitative feed restriction was applied to chickens from 7 to 14 d of age. An enzyme complex mainly consisting of protease and amylase was added to the chicken ration from hatching to the end of the experiment. Birds subjected to feed res...

Knowledge of specific enzyme activity, along with animal habits and digestive capacity is essential in formulating an appropriate diet for any species. In this study, we evaluated and characterized the activity of digestive enzymes present in the liver, intestine, and stomach of Paralichthys orbignyanus. The effects of pH and temperature on enzyme activity were also evaluated via the use of spe...

The effect of taxol, which is a microtubule stabilizer, was examined in a model of acute edematous pancreatitis induced in rat by the administration of caerulein. Prophylactic administration of taxol ameliorated inhibition of pancreatic secretion, increased level of serum amylase, pancreatic edema, and histological alterations in this model. Immunofluorescence studies revealed that taxol stabil...

Digestive enzyme activity is often used as a sensitive response to environmental pollution. However, only little is known about the negative effects of stress on digestive capacities and their consequences on energy reserves and reproduction, although these parameters are important for the maintenance of populations. To highlight if changes in biochemical responses (digestive enzymes and reserv...

Few investigations have studied digestive enzyme activities in the alimentary tracts of sharks to gain insight into how these organisms digest their meals. In this study, we examined the activity levels of proteases, carbohydrases, and lipase in the pancreas, and along the anterior intestine, spiral intestine, and colon of the bonnethead shark, Sphyrna tiburo. We then interpreted our data in th...

The problem of determining when larvae should be offered food is particularly difficult in a Ž . species such as Atlantic halibut that has a long yolk-sac period 280–320 degree days, dd . In order to help determine at what age Atlantic halibut larvae are able to digest food, we compared the activities of key digestive enzymes in four yolk-sac stages at an age interval that has been recommended ...

OBJECTIVE Fetal hyperchogenic bowel is associated with a variety of conditions, the incidence of which has yet to be studied. STUDY DESIGN The outcomes of 182 cases of fetal hyperechogenic bowel were reviewed. Screening for maternal toxoplasmosis, fetal karyotyping, and amniotic fluid digestive enzyme assays were performed in all cases. Eight mutations associated with cystic fibrosis were ana...

1. The comparative effects of raw soya beans on food intake, growth, digestive organ weight, and enzyme activities in goslings and chicks were studied, 2. Goslings were more affected than chicks by the ingestion of a raw soya-bean diet (RSD) in the following ways: reduction in food intake and growth rate; increase in relative weight of the digestive organs; reduction in specific activities of l...

GASTRIC STABILITY STUDY OF SUPPLEMENTAL DIGESTIVE ENZYMES In order to meet the cellular demands of adequate nutrients, there must be a good selection of the foods containing the nutrients and also a good digestion/absorption within the gastrointestinal tract. This awareness to ensure good bioavailability of nutrients is gaining more interest. As a result, the administration of supplemental dige...