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Systemic circulatory effects of pentagastrin

100%

Pawlik W. W., Gustaw P., Czarnobilski K., Konturek S. J.

Acta Physiologica Polonica

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1987

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tom 38

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nr 5

2

Digestion and utilization of fructose polymers by the rumen bacterium Treponema sp. strain T

86%

Kasperowicz A., Michalowski T.

Journal of Animal and Feed Sciences

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2007

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tom 16

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nr 4

577-589

3

Single dose of green tea extract decreases lipid digestion and absorption from a test meal in humans

86%

Walkowiak J., Bajerska J., Kargulewicz A., Lisowska A., Siedlerski G., Szczapa T., Kobelska-Dubiel N., Grzymislawski M.

Acta Biochimica Polonica

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2013

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tom 60

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nr 3

Background & Aims: Green tea is known worldwide for its high content of polyphenolic compounds and multifactorial beneficial effects on human health. The role of green tea as an inhibitor of lipid hydrolysis is widely discussed. The aim of the study was to assess the influence of green tea extract on lipid digestion and absorption. Methods: The study comprised 32 healthy volunteers aged 23 to 30 years with normal exocrine pancreatic function. In all subjects 13C-labelled mixed triglyceride breath test was performed twice with and without green tea extract ingestion. Cumulative percentage dose recovery was considered to reflect digestion and absorption of lipids. Values are expressed as medians and 1st-3rd quartile distribution. Results: In all subjects, cumulative percentage dose recovery values were normal in a placebo test (36.8% <30.1-43.3%>). These results were significantly higher (p=0.021) than those obtained in green tea extract test (28.8% <23.1-37.2%>). Results of six tests with GTE were abnormal. Conclusions: Single dose of green tea extract taken with a test meal decreases lipid digestion and absorption in humans.

4

A dynamic simulation model of nutrient digestion in the rumen of dairy cows

86%

Petruzzi H., Danfaer A., Norgaard P.

Journal of Animal and Feed Sciences

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2002

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tom 11

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nr 3

5

The effect of different diets on the amount of organic acid produced in the digestive tract of Mystromys albicaudatus

86%

Mahida H., Perrin M. R.

Acta Theriologica

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1994

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tom 39

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nr 1

The white-tailed rat Mystromys albicaudatus (A. Smith, 1834) has a sacculated bilocular hemiglandular stomach. Its forestomach resembles a rumen, in that it has papillae and a high density of bacteria. This suggests that the forestomach of the white-tailed rat may be functionally similar to a rumen. Although the fermentation of fibre is very limited in the digestive tract of the white-tailed rat, the determination of total foregut fermentation relative to caecal fermentation was essential since ingested soluble carbohydrates may also be fermented by the forestomach bacteria. The present study investigated the effects of different diets (varying in proximate composition) on the pH, volatile fatty acid and lactic acid production for the various regions of the gut. The results indicate that M. albicaudatus is essentially a hindgut fermenter.

6

Effect of monensin on rumen fermentation and digestion and milk production in lactating dairy cows

86%

Mackintosh E. D., Phipps R. H., Sutton J. D., Humphries D. J., Wilkinson J. I. D.

Journal of Animal and Feed Sciences

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2002

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tom 11

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nr 3

7

Effects of specific inhibitors on the gene expression of a digestive trypsin in Pieris brassicae L. (Lepidoptera: Pieridae)

72%

Sharifloo A., Zibaee A., Sendi J. J., Jahromi K. T.

Journal of Plant Protection Research

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2018

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tom 58

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nr 1

Protein digestion in insects relies on several groups of proteases, among which trypsin plays a prominent role. In the current study, larvae of Pieris brassicae L. were fed radish leaves treated with 1 mM concentrations of three specific inhibitors of trypsin: AEBSF.HCl [4-(2- -aminoethyl)-benzenesulfonyl fluoride, monohydrochloride], TLCK (N-a-tosyl-l-lysine chloromethyl ketone) and SBTI (Soybean Trypsin Inhibitor) to find their potential effects on gene expression of trypsin. Initially, RT-PCR analysis revealed a gene of 748 bp responsible for synthesizing the digestive trypsin in P. brassicae larvae. Also, qRT-PCR data indicated a statistically greater expression of trypsin gene in the larvae fed 1 mM concentrations of AEBSF.HCl, TLCK and SBTI than the control. Results of the current study indicated that synthetic inhibitors can not only negatively affect the gene expression of P. brassicae trypsin, but also the insect can activate a compensatory mechanism against interruption of protein digestion by inducing more expression of the gene and producing more trypsin into the midgut lumen.

8

Detection of transgenic maize Cry 1 Ab protein subjected to ruminal digestion

72%

Jacobs J. L., Diez-Gonzalez F., Stern M. D., Philips R. L.

Journal of Animal and Feed Sciences

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2005

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tom 14

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nr 4

655-664

9

Effect of rice straw in the diet for growing goats on site and extent of digestion and N balance

72%

Zhao X. G., Jiang H. L., Sun Z. H., Tang S. X., Zhou C. S., Cong Z. H., Tayo G. O., Tan Z. L.

Journal of Animal and Feed Sciences

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2007

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tom 16

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nr 3

379-388

10

Estimation of digesta kinetics of different particle size fractions using rumen evacuation technique in dairy cows fed red clover-grass silage

72%

Bayat A. R., Rinne M., Khalili H., Valizadeh R., Huhtanen P.

Journal of Animal and Feed Sciences

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2007

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tom 16

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nr 4

538-554

11

Fate of dietary phytosteryl/-stanyl esters upon digestion by humans: analysis of intact esters and their metabolites in feces

72%

Lubinus T., Barnsteiner A., Engel K.-H.

Polish Journal of Food and Nutrition Sciences

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2011

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tom 61

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nr Suppl.1

12

Effects of abomasal infusion of cottonseed oil and dietary enzyme supplementation on dairy goats

72%

Jalilvand G., Naserian A., Odongo N. E., Kebreab E., Valizadeh R., Eftekhar Shahrodi F., France J.

Journal of Animal and Feed Sciences

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2007

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tom 16

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nr 3

389-396

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Microlocalization and distribution of digestion-resistant aromatic lignin and cellulosic compounds in feeds at cellular and subcellular levels: A novel approach

72%

Yu P.

Journal of Animal and Feed Sciences

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2007

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tom 16

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nr 4

505-525

14

Ultrastructure of the digestive system and experimental study of feeding in the monogenean skin and fin parasite Macrogyrodactylus congolensis

72%

Arafa S. Z., El-Naggar M. M., Kearn G. C.

Acta Parasitologica

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2013

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tom 58

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nr 4

In the present study, transmission electron microscopy (TEM) has been used to study the ultrastructure of the digestive system, namely the pharynx, oesophageal glands and intestine, of the monogenean skin and fin parasite Macrogyrodactylus congolensis. The pharynx consists of an anterior highly muscular region and a posterior mainly glandular syncytial region. The anterior region is provided with six pharyngeal papillae, the centre of each of which is occupied by electron dense secretory bodies, identical with those in the posterior region of the pharynx. The intestine has an uninterrupted syncytial gastrodermis and the luminal surface is provided with many unbranched lamellae. The intestine of living specimens contains large and small granules which give it a reddish brown colour. Large particles, presumed to be lipid droplets, and small granules, presumed to be melanin granules, were found in the gastrodermis and in the intestinal lumen. Parasites were induced to feed and then preserved for TEM at the following intervals: just after feeding, 30 min after feeding, 1 h 30 min after feeding and 2 h after feeding. The specimens were then processed for TEM and sections cut through the intestine of each specimen were examined with the transmission electron microscope. Three types of vacuoles (V1, V2, V3) were detected in the gastrodermis. Vacuoles V1 have thick walls and are likely to be endocytotic, enclosing luminal contents at the surface of the gastrodermis. V2 vacuoles may be lysosomes that fuse with V1 vacuoles. V3 vacuoles may serve to dispose of residual digestive material into the lumen.

15

Sanitary validation of the process of anaerobic digestion of slurry based on the survival of Salmonella Senftenberg (W775, H2S negative) and Ascaris suum eggs

72%

Paluszak Z., Skowron K., Bauza-Kaszewska J., Olszewska H., Kroplewska M.

Acta Scientiarum Polonorum. Agricultura

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2016

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tom 15

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nr 4

The subject of this study was an assessment of the effectiveness of hygienization of pig slurry during the methane fermentation process. The basic criterion for evaluating the effectiveness of the process was the inactivation rate of Salmonella Senftenberg (W775, H2S negative) and the eggs of Ascaris suum. Bacteria suspensions were introduced into slurry inside microbiological carriers of the FILTER-SANDWICH type, while parasite eggs were in special perlon parasitological carriers. The obtained results indicate that during anaerobic digestion of slurry there occurred a rapid elimination of both Salmonella Senftenberg (W775, H2S negative) and Ascaris suum eggs. The shape of the regression line shows that the complete inactivation of Salmonella Senftenberg (W775, H2S negative) occurred between the 12th and 13th hour of the process. Ascaris suum eggs were completely eliminated after 4 hours. Study results suggest that even in the case of strong contamination of the feed material, the technology of anaerobic digestion guarantees obtaining a microbiologically safe product.

16

Digestion of sewage sludge from individual dairy wastewater treatment plants before its final disposal

72%

Magrel L.

Polish Journal of Natural Sciences

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2004

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tom 16

223-229

17

Effect of dietary level of maize- and rye distiller dried grains with solubles on nutrient utilization and digesta viscosity in laying hens

72%

Swiatkiewicz S., Koreleski J.

Journal of Animal and Feed Sciences

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2007

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tom 16

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nr 4

668-677

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Effects of ketosis in dairy cows on blood biochemical parameters, milk yield and composition, and digestive capacity

72%

Yang W., Zhang B., Xu C., Zhang H., Xia C.

Journal of Veterinary Research

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2019

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tom 63

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nr 4

19

Ability of the rumen ciliate Epidinium ecaudatum to digest and use crystalline cellulose and xylan for in vitro growth

72%

Michalowski T., Rybicka K., Wereszka K., Kasperowicz A.

Acta Protozoologica

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2001

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tom 40

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nr 3

20

Thirty four years since the discovery of gastrointestinal melatonin

72%

Bubenik G. A.

Journal of Physiology and Pharmacology. Supplement

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2008

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tom 59

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nr 2

After the discovery of melatonin in the pineal gland by Lerner and co-workers in 1958, melatonin was also detected in the retina and the human appendix. Later, melatonin was confirmed immunohistologically in all segments of the gastrointestinal tract (GIT), in the guts of bovine embryos and in the GIT of low vertebrates. Melatonin was also confirmed in the pancreas and the hepatobilliary system. Melatonin is produced in the enteroendocrine cells of the GIT mucosa. The concentrations of melatonin in the GIT are 10-100x higher than in the plasma and the total amount of melatonin in the GIT is around 400x higher than the amount of melatonin in the pineal gland. Similar to pineal melatonin, GIT melatonin is a multifunctional compound which exhibits some general as well as some specific effects, depending on the organ and the location of GIT tissue. In the GIT, melatonin exhibits endocrine, paracrine, autocrine and luminal actions. Generally, the episodic secretion of melatonin from the GIT is related to the intake and digestion of food and to the prevention of tissue damage caused by hydrochloric acid and digestive enzymes. Some actions, such as the scavenging of hydroxyl free radicals, immunoenhancement and antioxidant effects are of general nature, whereas others, such as an increase of mucosal blood flow, the reduction of peristalsis and the regulation of fecal water content, are specific to the tubular GIT. Generally, melatonin actions oppose those of serotonin. Laboratory and clinical studies indicate that the utilization of melatonin can prevent or treat pathological conditions such as esophageal and gastric ulcers, pancreatitis, colitis, irritable bowel disease, and colon cancer.

Ograniczanie wyników

Systemic circulatory effects of pentagastrin

Digestion and utilization of fructose polymers by the rumen bacterium Treponema sp. strain T