Consulta: subjectFacets:"Intestine"
Registros recuperados: 32
Data/hora: 05/06/2024 16:24:29

Dietary lipid level affects fatty acid composition and hydrolase activities of intestinal brush border membrane in seabass
Provedor de dados: 5
Autores: Cahu, Chantal; Zambonino, Jose-luis; Corraze, Genevieve; Coves, Denis.
Triplicate groups of juvenile seabass (initial weight of 241 g) were fed during 13 weeks three isonitrogenous experimental diets containing different lipid levels, 12% (LL group), 21% (ML group) and 30% (HL group). At the end of the experiment, fish weight gain was similar among the 3 dietary groups. Intestinal brush border membranes were purified for each dietary group; one part of the brush border fraction was dedicated to enzyme assays, the remaining fraction being used for lipid extraction followed by fatty acid analysis. The fatty acid composition of the brush border membrane differed among the 3 groups, although the 3 experimental diets had the same fatty acid composition. The increase in dietary lipid level resulted in a lowering in (n-3)...
Tipo: Text
Palavras-chave: Membrane lipid; Intestine; Fish; Fatty acids; Dietary lipids; Brush border hydrolases.
Ano: 2000
URL: http://archimer.ifremer.fr/doc/2000/publication-901.pdf

Influence of the diet on the microbial diversity of faecal and gastrointestinal contents in gilthead sea bream (Sparus aurata) and intestinal contents in goldfish (Carassius auratus)
Provedor de dados: 5
Autores: De Paula Silva, Flavia Cristina; Nicoli, Jacques Robert; Zambonino, Jose Luiz; Kaushik, Sadasivam; Gatesoupe, François-joel.
Fish intestinal microbiota changes with diet and this effect is of particular interest considering the increasing substitution of fish meal by plant protein sources. The objective of this work was to study the effects of partial substitution of fish meal with lupin and rapeseed meals on gut microbiota of the gilthead sea bream (Sparus aurata) and in goldfish (Carassius auratus). Faecal, gastrointestinal and intestinal contents were characterized by culture-based and molecular methods. Vibrionaceae was high in faeces and in the intestine of sea bream, while a more diverse microbiota was retrieved from the stomach, where Bacillales and Flavobacteriaceae appeared to be influenced by the diet. PCR-DGGE profiles revealed high diversity of the microbiota...
Tipo: Text
Palavras-chave: Vegetable meals; DGGE; Microbiota; Stomach; Intestine; Faeces.
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00040/15096/12440.pdf

Molecular characterisation of prolactin and analysis of extrapituitary expression in the European sea bass Dicentrarchus labrax under various salinity conditions
Provedor de dados: 5
Autores: Boutet, Isabelle; Lorin Nebel, C; De Lorgeril, Julien; Guinand, B.
dAlthough prolactin has been demonstrated to be the main hormone involved in adaptation to dilute media in several freshwater teleosts, few studies have been conducted in marine teleosts. In the Mediterranean, the sea bass Dicentrarchus labrax inhabits environments ranging from the open sea to coastal lagoons, where salinity varies greatly. We characterised the prolactin (prl) gene and analysed its expression in two organs (gill and intestine) in D. labrax acclimated to either freshwater or seawater. A 2819 bp long sequence encompassing the prl gene and a part (282 bp) of the promoter were identified, and these comprised 5 coding exons separated by 4 introns. Prolactin was similarly expressed in fresh- and seawater adapted fish, although expression in...
Tipo: Text
Palavras-chave: Prolactin; Phylogenctic analysis; MRNA expression; Osmoregulation; Intestine; Gill; Dicentrarchuslabrax.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-2537.pdf

Effects of Supplemental Boron on Intestinal Proliferation and Apoptosis in African Ostrich Chicks
Provedor de dados: 77
Autores: Sun,PengPeng; Luo,You; Wu,Xin Tong; Ansari,Abdur Rahman; Wang,Jing; Yang,KeLi; Xiao,Ke; Peng,KeMei.
Boron is an essential trace element which plays an important role in process of metabolism and the function of the tissues. However, the effects of boron on the intestinal cells in African ostrich chicks are poorly reported. Therefore, this study was designed to investigate the role of boron on proliferation and apoptosis of the intestinal cells. A total of 36, ten day-old ostrich chicks were randomly divided into six groups and fed on the same basal diet supplemented with 0, 40, 80, 160, 320 and 640 mg/L boric acid in drinking water for 80 days. Proliferatingcell nuclearantigen (PCNA) wasused to test the proliferation indexof intestine in different group byimmunohistochemicalstaining (IHC). Apoptoticcellsofintestinewere detectedbyDutp-biotin nick end...
Tipo: Journal article
Palavras-chave: Apoptosis; Boron; Intestine; Ostrich chicks; Proliferation.
Ano: 2016
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022016000300002

Anatomical Behavior of the Celiacomesenteric Artery of Pirarucu Arapaima gigas Cuvier, 1817 (Osteoglossiforme, Arapaimidae)
Provedor de dados: 77
Autores: Santos,André Luiz Quagliatto; Brito,Fernando Moraes Machado; Bosso,Andrea Cristina Scarpa; Vieira,Lucelia Gonçalves; Silva Junior,Luiz Martins da; Kaminishi,Arthur Paulino Sanzo; Silva,Juliana Macedo Magnino; Pinto,José Guilherme Souza; Moura,Mariela Silva; Rosa,Marcelo de Alcántara.
The pirarucu, Arapaimidae family fish, is one of the most important and emblematic species of Amazon. To investigate their circulatory system anatomies features were used 10 specimens with 74 cm medium total length, from river Araguaia lakes, Sao Miguel do Araguaia, Goias, Brazil. The fishes had their celomatic cavity open with dorsal aorta artery identified and cannulation where was injected synthetic latex. Fixation of those specimens was by injection of 10% formalin. In that specie, the coeliac-mesenteric artery is the only one arterial vessel responsible to digestive tract flow and always ramified from 2nd, 3rd and 4th left efferent branchial arteries. The stomach is flowing by coeliac artery and a gastric branch of the cecal ventral artery; intestine...
Tipo: Journal article
Palavras-chave: Arapaima gigas; Arteries; Stomach; Intestine; Osteoglossiformes.
Ano: 2007
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022007000400003

Morfometría de la Pared Intestinal del Colon Ascendente de Ratas Sometidas a Desnutrición Proteica Severa
Provedor de dados: 77
Autores: Hermes,Catchia; Azevedo,Jorge Fernandes de; Araújo,Eduardo José de Almeida; Sant'Ana,Débora de Mello Gonçales.
This paper aims to verify the effects of severe protein malnutrition over the intestinal ascending colon morphometrics in adult rats. 12 rats (90 days old) were divided into 2 groups: control (n = 5) and malnutritioned (n = 7). In the following 90 days, the rats of the control group received a 24% protein chow as the malnourished group received 4% protein chow. The animals were submitted to euthanasia according to the anesthetic protocol. Colon segments were collected and submitted to routine histological processing. The cuts were stained with HE and histochemical techniques for mucines. The morphometric analyses showed the sustenance of the whole wall and muscle tunic thickness, as well as the reduction of the thickness of the mucosa tunic, the amount of...
Tipo: Journal article
Palavras-chave: Hypoproteic Diet; Intestine; Intestinal Wall.
Ano: 2008
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022008000100001

The air-breathing cycle of Hoplosternum littorale (Hancock, 1828)(Siluriformes: Callichthyidae)
Provedor de dados: 83
Autores: Jucá-Chagas,Ricardo; Boccardo,Lilian.
Hoplosternum littorale is a continuous air breather, which uses a portion of its intestine to extract oxygen from inspired air. Its air-breathing behavior occurs in four phases: 1) ascent to the water surface; 2) mouth emergence with expansion of the oral cavity for air inspiration; 3) downward swimming and oral cavity compression resulting in air swallowing and the expiration of old air from the anus; 4) return to bottom. The time required to complete the air-breathing cycle was significantly shorter for small fish compared to large fish.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Respiratory organ; Tamboatá; Behavior; Body size; Intestine.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252006000300009

Clinical Applications of Electrointestinography in the Horse
Provedor de dados: 19
Autores: SASAKI, Naoki; LEE, Inhyung; AYUKAWA, Yu; YAMADA, Haruo; 佐々木, 直樹.
It is thought that in order to effectively treat gastrointestinal dysfunction, it should be detected at an early stage. The present study aimed to observe the movement via Electrointestinography (EIG) in the small intestine, cecum, right ventral colon and right dorsal colon, and to examine the procedure for assessing gastrointestinal function. Seven healthy thoroughbred horses were used. They were allowed food twice a day. EIG was measured at ten-minute intervals over a 24 hr period, and running spectral analysis was used. As a result, it was clear that EIG could non-invasively assess gastrointestinal function by setting the cut-off value of the frequency band to 1.8-12.0 cpm for a part of the digestive tract which is in a comparatively fixed position. The...
Palavras-chave: Electrointestinography; Equine; Intestine; Power spectral analysis; Running spectral analysis.
Ano: 2004
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3101

Effects of the Dietary Inclusion of Xylanase on the Performance and Jejunum Morphometry of Meat-Type Quails
Provedor de dados: 89
Autores: Grecco,ET; Marcato,SM; Oliveira,TMM; Stanquevis,CE; Grieser,DO; Perine,TP; Finco,EM; Benites,MI.
ABSTRACT The objective of this study was to evaluate the effects of the supplementation of two xylanase products to diets with reduced metabolizable energy fed to meat-type quails during the starter phase (1-14 days). A completely randomized experimental design in a 2 x 3 + 1 factorial arrangement two reduced metabolizable energy (ME) diets, inclusion or not of xylanase, and a control diet with no enzyme addition) was applied, totaling seven treatments with five replicates of 45 quails each. At 14 days of age, jejunum segments were collected for morphometry evaluation. No interaction between the studied factors were detected for performance and jejunal morphometry parameters. Body weight, weight gain, feed intake and feed conversion were not influenced by...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Carbohydrases; Energy; Enzymes; Intestine; Quail production.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2019000400313

Determining the Best Sectioning Method and Intestinal Segment for Morphometric Analysis in Broilers
Provedor de dados: 89
Autores: Gava,MS; Moraes,LB; Carvalho,D; Chitolina,GZ; Fallavena,LCB; Moraes,HLS; Herpich,J; Salle,CTP.
Brazilian poultry production is very efficient and demands maximum broiler performance. Therefore, digestive system pathologies have a relevant role. Considering it is difficult to obtain consistent information on intestinal morphometric analysis, this study aimed at establishing essential and clear criteria for the collection of intestinal segments for morphometric analysis. Fifteen 13-d-old broilers were sacrificed and three intestinal segments were collected per bird. Two 3-cm long sections were obtained from each of the intestinal segments. Samples were collected open or closed. The closed samples were transversely, hemicylindrically, or longitudinally sectioned. Samples were processed and stained with hematoxylin and eosin. The number of microscopic...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Image; Intestine; Morphometry; Poultry; Villus.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2015000200145

Effects of sorghum on broilers gastrointestinal tract
Provedor de dados: 89
Autores: Silva,MCA; ACXG,Carolino; Litz,FH; Fagundes,NS; Fernandes,E de A; Mendonça,GA.
This study aimed at evaluating the effects of whole and ground sorghum, compared with ground corn, on the live weight, feed conversion ratio, organs weight and intestinal biometrics and histomorphometrics. In total, 960 Hubbard Flex broilers were reared until 42-day-old and distributed into 24 pens, according to the three treatments: ground corn, whole-grain sorghum, and ground sorghum. On day 42, five male birds per treatment were selected by similar body weight and sacrificed. Gizzard absolute weight, and proventriculus, liver, pancreas and heart relative weights, and duodenum, jejunum, ileum, ceca, and colon length and relative weight were determined. Villus characteristics and intestinal mucosa absorption surface area were evaluated. Broilers fed...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Alternative feedstuffs; Intestine; Nutrition; Organs.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2015000100095

Probiotic and prebiotic utilization in diets for free-range broiler chickens
Provedor de dados: 89
Autores: Pelícia,K; Mendes,AA; Saldanha,ESPB; Pizzolante,CC; Takahashi,SE; Garcia,RG; Moreira,J; Paz,ICLA; Quinteiro,RR; Komiyama,CM.
This work aimed to evaluate the effects of probiotic associated to prebiotic on performance, carcass and cut yields, qualitative traits of meat, development and score of lesions due to coccidiosis in digestive tract of broiler chickens raised in a free-range system during 85 days. One thousand, six hundred and ninety-six day-old male broiler chicks from naked-neck ISA S757-N Label Rouge line were used in a randomized block design with factorial scheme of 4x2 and four repetitions. The effect of four additive (1 - biologic promoter + coccidiosis vaccine; 2 - biologic promoter + anti-coccidiosis; 3 - chemical promoter + coccidiosis vaccine; 4 - chemical promoter + anti-coccidiosis) and two breeding systems from 35th day of age (one with no-access to pasture...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Breeding system; Growth promoter; Intestine; Label Rouge; Symbiotic.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2004000200005

Body Morphometry and Development of the Digestive System of Grey Partridge (Perdix Perdix) Depending on Age and Gender
Provedor de dados: 89
Autores: Kokoszyński,D; Biegniewska,M; Wilkanowska,A; Saleh,M; Bernacki,Z; Stęczny,K; Kmiecik,M.
ABSTRACT The experiment used 100 grey partridges (Perdix perdix L.), which were reared first in confinement and later in aviaries. Partridges were lighter and had greater body dimensions at 36 weeks compared to 12 weeks except for trunk length. Older birds showed greater values (p&gt;0.05) of compactness and lower values of massiveness and long-leggedness. Significant differences were found for keel length in females. At 36 weeks, male and female partridges had significantly greater total intestinal length, males had significantly longer small intestine and rectum, and females were characterized by significantly longer caeca and greater (p&lt;0.05) intestine to body length ratio. Older birds had significantly greater gizzard weight and percentage and heart...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Body dimensions; Gender; Grey partridge; Growth; Intestine.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2017000400695

Effects of Dietary Supplementation with Tributyrin and Coated Sodium Butyrate on Intestinal Morphology, Disaccharidase Activity and Intramuscular Fat of Lipopolysaccharide-Challenged Broilers
Provedor de dados: 89
Autores: Xiong,J; Qiu,H; Bi,Y; Zhou,HL; Guo,S; Ding,B.
ABSTRACT The objectives of this study were to investigate the effects of tributyrin (TB) and coated sodium butyrate (CSB) on intestinal morphology, disaccharidase activity and intramuscular fat of broilers challenged with lipopolysaccharide (LPS). A total of 160 1-day-old healthy Cobb broilers were randomly allocated into four groups: (1) control; (2) LPS, in which broilers were fed a basal diet and intraperitoneally injected with 500 μg/kg LPS on days 38, 40 and 42; (3) TB, in which LPS-challenged broilers were fed basal diet supplemented with 500 mg/kg TB; and (4) CSB, in which LPS-challenged broilers were fed basal diet supplemented with 877 mg/kg CSB. Addition of TB and CSB inhibited (p&lt;0.05) the decrease in villus height in the duodenum and ileum...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Broilers; Coated sodium butyrate; Intestine; Lipopolysaccharide; Tributyrin.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2018000400707

Morphological changes of the intestinal mucosa of broilers and layers as affected by fasting before sample collection
Provedor de dados: 89
Autores: Zavarize,KC; Sartori,JR; Gonzales,E; Pezzato,AC.
The present study aimed at evaluating the histo-morphological changes resulting from different fasting periods before the collection of tissue samples in different segments of the small intestine (duodenum, jejunum and ileum) of 7-d-old male chicks of a broiler and a layer strain. A completely randomized experimental design in in a 2x7 factorial arrangement, being two strains with different growth rates (Ross 308 and HyLine® W36) and seven fasting periods (0, 2, 4, 6, 8, 10 and 12 hours ), with six replicates, totaling 84 birds. The comparison of the morphometrics of the duodenum, jejunum and ileum of broiler and layer chicks demonstrated faster digestive tract development in broilers relative to layers. The fasting period caused morphological changes in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fasting; Intestine; Morphology; Organs; Strain.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2012000100004

Differential growth retardation and Myofibrillar fragmentation in rats submitted to feed restriction and realimentation
Provedor de dados: 63
Autores: Leonardo,Eric Franchi; Delgado,Eduardo Francisquine; Bagaldo,Adriana Regina; Lanna,Dante Pazzanese Duarte; Paz,Claudia Cristina Paro de.
Feed regimens alter muscle growth rate, hence they might impact the proteolytic system involved in tenderization during meat conditioning. The aim of this project was to verify the effects of feed restriction regimens on muscular and animal growth and their impact on postmortem myofibrillar fragmentation. The regimens were: 1) Feeding ad libitum for 11 d (Al/2); 2) Feed restriction (60% of Net Energy for maintenance - NEm) for 11 d (Rt/2); 3) Ad libitum for 22 d (Al); 4) Ad libitum for 4 d and feed restriction (60% NEm) for 18 d (Rt); 5) Ad libitum for 19 d and 3 d of fast (Ft); 6) Feed restriction (60% NEm) for 11 d and ad libitum until 22 d (Ral). The regimens Al/2 and Rt/2 had different intestine weights (19.3 ± 1.1 and 15.8 ± 1.9 g, respectively; P...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Myofibrillar fragmentation index; Muscle; Intestine; Liver.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162008000200003

First record of Neoechinorhynchus buttnerae (Eoacantocephala, Neochinorhynchidae) on Colossoma macropomum (Characidae) in a fish farm in Roraima, Brazil
Provedor de dados: 36
Autores: PEREIRA,Jeffson Nobre; MOREY,Germán Augusto Murrieta.
ABSTRACT Severe infections by the acanthocephalan Neoechinorhynchus buttnerae were reported in Colossoma macropomum in fish farms in northern Brazil. The occurrence of the parasite is recorded for the first time in the state of Roraima, Brazil, along with its parasite indexes. Fifty C. macropomum from a fish farm were analyzed. We collected a total of 13474 individual parasites. Neoechinorhynchus buttnerae had a prevalence of 100%, and mean intensity and mean abundance of 269.48. Significant positive correlations were observed between fish standard length, weight and relative condition factor and the number of parasites. Our results showed evident loss of body mass in the parasitized fish. Fish farmers in Roraima should be advised to manage the infection...
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Acanthocephala; Intestine; Parasites; Parasitic indexes; Tambaqui.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672018000100042

Growth performance and intestinal histomorphology of Nile tilapia juveniles fed probiotics - doi: 10.4025/actascianimsci.v35i4.18610
Provedor de dados: 2
Autores: Nakandakare, Ivan Bernardoni; Instituto de Pesca, Agência Paulista de Tecnologia dos Agronegócios; Iwashita, Marina Keiko Pieroni; Universidade Estadual Paulista “Júlio de Mesquita Filho”; Dias, Danielle de Carla; Universidade Estadual Paulista “Júlio de Mesquita Filho”; Tachibana, Leonardo; Instituto de Pesca, Agência Paulista de Tecnologia dos Agronegócios; Ranzani-Paiva, Maria José Tavares; Instituto de Pesca, Agência Paulista de Tecnologia dos Agronegócios; Romagosa, Elizabeth; APTA - São Paulo.
The objective of this study was to assess the growth performance and the histomorphometric characterization of the middle intestine of GIFT strain Nile tilapia, Oreochromis niloticus juveniles fed probiotics, added either before or after the feed processing. The experimental design was completely randomized, with five treatments and five replications: pelleted feed without any probiotic; pelleted feed with inclusion of probiotic before the processing; pelleted feed with inclusion of probiotic after the processing; extruded feed without any probiotic and extruded feed with inclusion of probiotic after the processing. Two hundred and fifty juveniles were distributed in 25 aquaria (20L) and fed for 63 days. Differences in the mean values of total weight were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nutrição; Probiotico; Morfologia intestino; Tilápia Bacillus; Intestine; Feed processing; Supplement Bacillus; Intestine; Feed processing; Supplement.
Ano: 2013
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/18610

Oral insulin improves metabolic parameters in high fat diet fed rats
Provedor de dados: 42
Autores: LIPINSKI,LEANDRO C.; KMETIUK,LOUISE B.; MATHIAS,PAULO C.F.; MALTA,ANANDA; FAVERO,GIOVANI M.; RIBEIRO,TATIANE A.; TOLEDO,ALCEU; NETTO,MARIO R. MONTEMOR; RODRIGUES,MARCOS R.S.
ABSTRACT Introduction/Aim: The gut has shown to have a pivotal role on the pathophysiology of metabolic disease. Food stimulation of distal intestinal segments promotes enterohormones secretion influencing insulin metabolism. In diabetic rats, oral insulin has potential to change intestinal epithelium behavior. This macromolecule promotes positive effects on laboratorial metabolic parameters and decreases diabetic intestinal hypertrophy. This study aims to test if oral insulin can influence metabolic parameters and intestinal weight in obese non-diabetic rats. Methods: Twelve weeks old Wistar rats were divided in 3 groups: control (CTRL) standard chow group; high fat diet low carbohydrates group (HFD) and HFD plus daily oral 20U insulin gavage (HFD+INS)....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Oral insulin; Intestine; Diabetes; Obesity; Metabolism; Pancreatic beta-cell.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000401699

Histopathological and ultrastructural findings induced by heat-inactivated Lactobacillus plantarum and the culture supernatant on the intestinal mucosa of piglets: an ex vivo approach
Provedor de dados: 45
Autores: Maidana,L.G.; Gerez,J.; Pinho,F.; Garcia,S.; Bracarense,A.P.
ABSTRACT In the present study, histological, morphometrical and ultrastructural analysis were performed to investigate intestinal mucosa changes in piglets jejunal explants exposed to two concentration of heat-inactivated Lactobacillus plantarum and their respective culture supernatants. Jejunal explants were incubated for 4 hours in DMEM culture medium with a) only culture medium (control group), b) heat-inactivated Lactobacillus plantarum strain1 - LP1 (1.1 x 108CFU/ml), c) heat-inactivated Lactobacillus plantarum strain2 - LP2 (2.0 x 109CFU/ml), d) heat-inactivated Lactobacillus plantarum strain1 culture supernatant (CS1), and e) heat-inactivated Lactobacillus plantarum strain2 culture supernatant (CS2). Explants exposed to heat-inactivated L. plantarum...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pigs; Explants; Intestine; Probiotic.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352019000100011

Ultrastructural aspects of experimental cryptosporidiosis in pigs
Provedor de dados: 45
Autores: Bracarense,A.P.F.R.L.; Reis,A.C.F.; Sinhorini,I.L.
The aim of this work was to determine ultrastructural changes on the intestinal mucosa and associated lymphoid tissues after an experimental infection with Cryptosporidium sp. Twelve piglets dosed orally with 1×10(6) oocysts were slaughtered on days 3, 6, 9 and 12 after inoculation. The ultrastructural lesions in the intestinal cells were irregular with thickened microvilli, cytoplasmic protrusions and vacuolation, swollen mitochondria, hypertrophic organelles and nuclei. The lymphocytes of the Peyer’s patches occasionally were mitotic with a larger number of lymphoblasts in the inoculated animals.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pig; Cryptosporidiosis; Ultrastructure; Intestine.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09351999000500008

Chronic intestinal pseudo-obstruction in a dog: case report
Provedor de dados: 45
Autores: Bicalho,A.L.; Silva,A.P.C.; Paixão,T.A.; Cardoso Jr.,R.B.; Santos,R.L.
Intestinal pseudo-obstruction is a rare disorder that affects gastrointestinal propulsion. It may be secondary to several pathological conditions or it may develop without a known cause. A 1.2 year-old intact Pug bitch had a history of vomiting and constipation, which were followed by diarrhea and distended abdomen. Hypomotility and dilation of the small intestine, which was filled with gas, were observed during laparotomy. Histologically, full thickness biopsy specimens demonstrated a severe loss and degeneration of leiomyocytes in the inner and outer muscular layers of the intestinal wall, whereas there was a marked hypertrophy and hyperplasia of smooth muscle cells in the lamina propria, and extremely thickened muscularis mucosae arranged in bundles...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dog; Pseudo-obstruction; Intestine.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352011000600007

Hereditary hemochromatosis: An opportunity for gene therapy
Provedor de dados: 48
Autores: EZQUER,FERNANDO; NÚÑEZ,MARCO T; ROJAS,ALEJANDRO; ASENJO,JUAN; ISRAEL,YEDY.
Levels of body iron should be tightly controlled to prevent the formation of oxygen radicals, lipoperoxidation, genotoxicity, and the production of cytotoxic cytokines, which result in damage to a number of organs. Enterocytes in the intestinal villae are involved in the apical uptake of iron from the intestinal lumen; iron is further exported from the cells into the circulation. The apical divalent metal transporter-1 (DMT1) transports ferrous iron from the lumen into the cells, while the basolateral transporter ferroportin extrudes iron from the enterocytes into the circulation. Patients with hereditary hemochromatosis display an accelerated transepithelial uptake of iron, which leads to body iron accumulation that results in cirrhosis, hepatocellular...
Tipo: Journal article
Palavras-chave: Iron; Intestine; Hemochromatosis; Gene therapy; HFE; DMT1; Cirrhosis.
Ano: 2006
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602006000100014

Effects of exposure to Diazinon on the lung and small intestine of Guinea pig, histological and some histochemical changes
Provedor de dados: 52
Autores: Rady,Mohamed Ibrahim.
The present study aimed to evaluate the histological changes and adverse effects on the total protein and general carbohydrates in the lung and small intestine of guinea pig "Cavia porcellus" induced by the exposure to sub lethal doses of the organophosphate insecticide diazinon. Primarily, diazinon insecticide oral LD50 was investigated after administrating orally different doses in guinea pig and was determined as 213 mg/Kg bw., the animals exposed to sub lethal doses of this insecticide revealed histological changes in both lung and intestine in a dose dependent manner. Also, significant decrease in the total protein and general carbohydrates in the lung and intestine were mostly observed, especially with the higher doses of the insecticide in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diazinon; Guinea pig; Lung; Intestine.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000200008

Food passage time through the alimentary tract of a brazilian teleost fish, Prochilodus scrofa (Steindachner, 1881) using radiography
Provedor de dados: 62
Autores: BARBIERI,Renato Lamounier; LEITE,Rodolpho Guião; STERMAN,Franklin de Almeida; HERNANDEZ-BLAZQUEZ,Francisco Javier.
Food passage time through the digestive tract of a detritivorous freshwater fish (Prochilodus scrofa) was determinate by radiographic techniques using barium sulfate as a contrast medium. The fish were kept in tanks at a constant temperature of 23.5ºC and received by an oral catheter a mixture of 2.5 parts of ground ration and 1 part of oral suspension of contrast medium (Celobar). Radiographs were taken at intervals of 3 hours. Immediately after the introduction of the mixture the stomach was outlined by the contrast. A sphincter was observed between the cardiac and the muscular stomachs. After 3 hours, 80 per cent of the proximal intestine was filled. After 6 hours the contrast reached the proximal, medial and distal portions of the intestine. After 9...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Intestine; Digestive system; Radiography; Fish.
Ano: 1998
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-95961998000100006

Changes in the electrophysiological parameters of the posterior intestine of Anguilla anguilla (Pisces) induced by oxytocin, urotensin II and aldosterone
Provedor de dados: 56
In view of the importance of the intestine in the osmoregulation of freshwater fishes, we determined the effects of oxytocin, urotensin II (UII), and aldosterone added to the serosal side of the isolated posterior intestine of the freshwater-adapted teleost Anguilla anguilla on electrophysiological parameters. Oxytocin decreased the short-circuit current (SCC) and transepithelial potential difference (TPD) at concentrations of 1 and 10 mU/ml (to 50% and 42% of control values, respectively), but did not alter these parameters at a concentration of 0.1 mU/ml. UII reduced SCC and TPD at concentrations of 10 nM, 50 nM and 100 nM (to 85% of control values), but increased these parameters at the concentration of 500 nM (to 115% of control values). Aldosterone...
Palavras-chave: Intestine; Anguilla anguilla; Oxytocin; Urotensin II; Aldosterone.
Ano: 1997
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1997000100006

Cholesterol induces fetal rat enterocyte death in culture
Provedor de dados: 56
Autores: Gazzola,J.; Silva,É.P.P.; Kanunfre,C.C.; Verlengia,R.; Vecchia,M.G.; Curi,R.
The effect of cholesterol on fetal rat enterocytes and IEC-6 cells (line originated from normal rat small intestine) was examined. Both cells were cultured in the presence of 20 to 80 µM cholesterol for up to 72 h. Apoptosis was determined by flow cytometric analysis and fluorescence microscopy. The expression of HMG-CoA reductase and peroxisome proliferator-activated receptor gamma (PPARgamma) was measured by RT-PCR. The addition of 20 µM cholesterol reduced enterocyte proliferation as early as 6 h of culture. Reduction of enterocyte proliferation by 28 and 41% was observed after 24 h of culture in the presence and absence of 10% fetal calf serum, respectively, with the effect lasting up to 72 h. Treatment of IEC-6 cells with cholesterol for 24 h raised...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fetal enterocytes; Cholesterol; Intestine; IEC-6 cells; HMG-CoA; PPARgamma.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2004000700019

Reduction of the amount of intestinal secretory IgA in fulminant hepatic failure
Provedor de dados: 56
Autores: Dong-yan,Liu; Weiguo,Jiang; Pei,Liu.
Intestinal barrier dysfunction plays an important role in spontaneous bacterial peritonitis. In the present study, changes in the intestinal barrier with regard to levels of secretory immunoglobulin A (SIgA) and its components were studied in fulminant hepatic failure (FHF). Immunohistochemistry and double immunofluorescent staining were used to detect intestinal IgA, the secretory component (SC) and SIgA in patients with FHF (20 patients) and in an animal model with FHF (120 mice). Real-time PCR was used to detect intestinal SC mRNA in the animal model with FHF. Intestinal SIgA, IgA, and SC staining in patients with FHF was significantly weaker than in the normal control group (30 patients). Intestinal IgA and SC staining was significantly weaker in the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fulminant hepatic failure; Secretory IgA; IgA; Secretory component; Intestine.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2011000500014

Guanylin peptides: cyclic GMP signaling mechanisms
Provedor de dados: 56
Autores: Forte,L.R.; Freeman,R.H.; Krause,W.J.; London,R.M.
Guanylate cyclases (GC) serve in two different signaling pathways involving cytosolic and membrane enzymes. Membrane GCs are receptors for guanylin and atriopeptin peptides, two families of cGMP-regulating peptides. Three subclasses of guanylin peptides contain one intramolecular disulfide (lymphoguanylin), two disulfides (guanylin and uroguanylin) and three disulfides (E. coli stable toxin, ST). The peptides activate membrane receptor-GCs and regulate intestinal Cl- and HCO3- secretion via cGMP in target enterocytes. Uroguanylin and ST also elicit diuretic and natriuretic responses in the kidney. GC-C is an intestinal receptor-GC for guanylin and uroguanylin, but GC-C may not be involved in renal cGMP pathways. A novel receptor-GC expressed in the opossum...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Kidney; Intestine; Guanylate cyclase; Chloride secretion; Sodium excretion.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1999001100002

Dietary soybean meal on growth and intestinal morphology of South American catfish, Rhamdia quelen, larvae
Provedor de dados: 65
Autores: Hernández,David Roque; Santinón,Juan José; Sánchez,Sebastián; Domitrovic,Hugo Alberto.
The effects of the replacement of bread yeast by soybean meal in diets for Rhamdia quelen larvae on growth, survival, and intestinal morphology were analysed. Larvae were fed for 20 days with five diets: a control diet formulated with 57% of bread yeast, and other four diets in which soybean meal at concentrations of 14.25, 28.5, 42.75 and 57% was added to obtain 25, 50, 75 and 100% of bread yeast replacement. Growth and survival parameters were negatively affected by dietary soybean meal inclusion. Larvae fed control diet showed significantly higher mean weight, specific growth rate, final biomass, and survival rate than larvae from other treatments. Enterocyte height and fold width of the posterior intestine showed highest values in the control group,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Larviculture; Experimental diet; Intestine; Morphology; South American catfish.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782012000900023

Topical and intraluminal Carolina Rinse Solution in p44/42 and p38 MAP Kinase activation profile in rabbit jejunum after ischemia and reperfusion
Provedor de dados: 65
Autores: Brandstetter,Luciana Ramos Gaston; Araújo,Eugênio Gonçalves de; Moreno,Juan Carlos Duque; Fioravanti,Maria Clorinda Soares; Moura,Veridiana Maria Brianezi Dignani de; Machado,Patrícia de Almeida.
The effects of topical and intraluminal Carolina Rinse Solution (CRS) in p44/42 (ERK 1/2) and p38 MAPK activation profile, in rabbit jejunum after ischemia and reperfusion (I/R), were investigated in this study. Fifteen New Zealand rabbits were allocated in three groups: Sham-operated (A), Ischemia and reperfusion (B) and CRS (C). Groups B and C were subjected to one hour of ischemia and two hours of reperfusion. In group C, ten minutes prior to reperfusion, the bowel lumen was filled with CRS, and the segment was immersed in CRS until reperfusion onset. Ischemia and reperfusion stimulated the phosphorylation of the p44/42 MAPK and p38 MAPK pathways in some layers of jejunum. Progressive activation of p44/42 MAPK was chiefly localized in the crypts of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: ERK 1/2; Intestine; Ischemia; P38; Reperfusion.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782014000100014

Morphometric parameters comparisons of the digestive tract of four teleosts with different feeding habits
Provedor de dados: 65
Autores: Becker,Alexssandro Geferson; Gonçalves,Jamile Fabbrin; Garcia,Luciano Oliveira; Behr,Everton Rodolfo; Graça,Dominguita Luhers; Kurtz Filho,Mário; Martins,Tessie; Baldisserotto,Bernardo.
The present study compared some morphometric parameters of the digestive tract of four teleosts with different feeding habits: traira (Hoplias malabaricus, carnivore), silver catfish (Rhamdia quelen, omnivore), hassar (Hoplosternum littorale, omnivore), and grass carp (Ctenopharyngodon idella, herbivore). The digestive tract was removed from fish collected from nature and fixed for some morphometric analyses, such as: intestinal quotient, intestinal area quotient, vilosity height, digestive somatic index, and hepatosomatic index. Grass carp showed the highest values of intestinal quotient and height vilosity. On the other hand, the intestinal area quotient was higher in traira than in the other species. The intestinal quotient can be used to estimate the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Gastrointestinal tract; Intestine; Morphological parameters; Pyloric ceca.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782010000400018