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A Comparative Histomorphometric Study of the Stomach of Rat (Rattus norvegicus), Bat (Eidolon helvum) and Pangolin (Manis tricuspis) in Relation to Diet 77
Ofusori,D. A; Caxton-Martins,E. A.
This study verified the comparative histomorphometric adaptations in the stomach of rat, bat and pangolin in relation to diet. Ten rats, ten bats and ten pangolins of both sexes were used for this investigation. The animals were sacrificed after slight anesthesia under chloroform inhalation. The stomach were excised, fixed in 10% formol saline and processed for light microscopic study. Stained slides were also subjected to morphometric analysis at a magnification of 400x. The results revealed that the cellular diameter/ density of parietal and zymogenic cells are significantly different in the three mammals (p<0.05) with the exception of the diameter of the zymogenic cells in pangolin which was not statistically significant (p>0.05) when compared...
Tipo: Journal article Palavras-chave: Pangolin; Bat; Rat; Stomach; Histomorphometry; Connective tissue fibers.
Ano: 2008 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022008000300026
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Anatomical Behavior of the Celiacomesenteric Artery of Pirarucu Arapaima gigas Cuvier, 1817 (Osteoglossiforme, Arapaimidae) 77
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
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Anatomy and physiology of digestive tract of crustaceans decapods reared in aquaculture 5
Ceccaldi, H.
The digestive tract of crustacea is complex. It is composed of a shor t oesophagum, a stomach with two bags, and internal wall with appendags specialized in grinding of feeds. These hard mastication pieces represent the gastric mill. Setae, filters included in the stomach structure allow the separation between food particles and liquid compounds. Those one are coming over through filters and more on to the digestive gland tubules or mid gut gland. In this organ, several types of cells play specialized functions: absorption, enzyme secretion, stocking function. Some cells of a new type, with undefined function, may be neurosecretions function, have been described recently. The end of tubules of digestive gland exhibits cells with embryonic characteristics....
Tipo: Text Palavras-chave: Decapoda; Neurosecretion; Feed; Rearing; Digestive glands; Enzymes; Stomach; Crustacean culture.
Ano: 1989 URL: http://archimer.ifremer.fr/doc/1989/acte-1486.pdf
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Associated laparoscopic-assisted gastropexy and ovariohisterectomy in a Great Dane bitch 65
Pinto Filho,Saulo Tadeu Lemos; Dalmolin,Fabíola; Oliveira,Marília Teresa de; Souza,Fernando Wiecheteck de; Sprada,Arícia Gomes; Rosa,Matheus Pippi da; Feranti,João Pedro Scussel; Brun,Mauricio Veloso.
Gastropexy techniques are performed aiming to adhere permanently the stomach to the abdomen, being this one of the most common indications for prevention and treatment of gastric dilatation-volvulus (GDV). The only accepted method for the prevention of GDV is the prophylactic gastropexy, and the laparoscopic-assisted procedure is quick and easy to perform. It is aimed to report the association of laparoscopic-assisted prophylactic gastropexyand elective ovariohysterectomy (OVH) in a two years old Great dane bitch using the two-portals access, when it was observed rapid and complete recovery. It is concluded that the two portals laparoscopic-assisted prophylactic gastropexy is feasible and safe in dogs, when combined with elective OVH. It makes the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Stomach; Laparoscopic-surgery; Dog.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015000200280
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Clinical, endoscopic and prognostic aspects of primary gastric non-hodgkin's lymphoma associated with acquired immunodeficiency syndrome 55
Rezende,Rosamar Eulira Fontes; Mantelmacher,Marcos; Ferreira,Sandro da Costa; Hyppólito,Elodie Bomfim; Machado,Alcyone Artioli; Ardengh,José Celso; Módena,José Luiz Pimenta.
Primary gastric non-Hodgkin's lymphoma (NHL) is a co-morbidity that can be observed during the clinical course of acquired immunodeficiency syndrome (AIDS). We evaluated the prevalence, clinical-evolutive aspects and form of endoscopic presentation of primary gastric NHL associated with AIDS. Two hundred and forty-three HIV patients were submitted to upper digestive endoscopy, with evaluation of clinical, endoscopic and histological data. A CD4 count was made by flow cytometry and viral load was determined in a branched-DNA assay. Six cases (five men; mean age: 37 years; range: 29-46 years) of primary gastric NHL were detected. The median CD4 count was 140 cells/mm³ and the median viral load was 40,313 copies/mL. Upper digestive endoscopy revealed polypoid...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Non-Hodgkin lymphoma; AIDS; Stomach; Upper digestive endoscopy.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702009000100002
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Description of ten additional ossicles in the foregut of the freshwater crabs Sylviocarcinus pictus and Valdivia serrata (Decapoda: Trichodactylidae) 103
Lima-Gomes,Renata C.; Lima,Jô de Farias; Magalhães,Célio.
ABSTRACT The morphology of stomach ossicles of decapod crustaceans provides valuable information on their phylogeny and biology. We herein described ten new ossicles in the foreguts of two trichodactylid crabs, Sylviocarcinus pictus (H. Milne-Edwards, 1853) and Valdivia serrata White, 1847, in addition to previously described 38 ossicles, which are also recognized and listed. Five specimens each of S. pictus and V. serrata were selected for morphological analysis of gastric ossicles. The stomachs were obtained after removing the carapace, and they were fixed in 10% formalin for 24 hours. After this procedure, the stomachs were immersed in a solution of 10% Potassium Hydroxide (KOH) and heated to 100 °C during 60 minutes for tissue maceration. At this...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Amazon; Anatomy; Foregut; Morphology; Neotropical; Stomach; Valdiviini.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702017000100312
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Development and functional morphology of the larval foregut of two brachyuran species from Northern Brazil 42
Abrunhosa,Fernando A.; Simith,Darlan J.B.; Monteiro,Joely R.C.; Souza Junior,Antonio N. de; Oliva,Pedro A.C..
Feeding is an important factor for the successful rearing of larvae of the crab species. Further information on the morphological features of the foregut may to reveal larval feeding behaviour and or/whether there is a lecithotrophy in some or even in all stages of the larval cycle. In the present study, the structural development of the foregut and their digestive functions were examined in larvae of two brachyurans, Uca vocator and Panopeus occidentalis, reared in the laboratory. During larval development, the foreguts of the larvae in the first and last zoeal stages and in the megalopa stage were microscopically examined, described and illustrated. The zoeal foreguts of both species were well developed, showing specialization with a functional...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Digestive system; Megalopa; Panopeus occidentalis; Stomach; T/ca vocator; Zoea.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652011000400014
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Distribution of Serotonin-immunoreactive Enterochromaffin Cells in the Gastrointestinal Tract of the Least Shrew (Cryptotis parva) 77
Al-Tikriti,Mohammed S; Khamas,Wael; Chebolu,Seetha; Darmani,Nissar A.
Serotonin is an important neurotransmitter in the central (CNS) and peripheral (PNS) nervous systems. It is involved in a variety of physiological processes both in the gut and in the CNS. The present study examined the distribution of serotonin containing enterochromaffin cells in the gastrointestinal tract (GIT) of a vomit competent species, the least shrew. These cells were easily recognized by their globular granules stained with the H&E and serotonin immune-positive stain. The immunoreactive enterochromaffin cells (IERCs) were mainly confined to the basal portion of the glandular epithelium and were distributed throughout the shrew stomach, small and large intestine. None was found to be associated with the mucosal epithelial lining. Moreover,...
Tipo: Journal article Palavras-chave: Least shrew; Enterochromaffin cells; Serotonin; Immunohistochemical; Stomach; Duodenum; Jejunum; Ileum; Colon.
Ano: 2012 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022012000300025
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Dynamics of Stomach Growth in the Human Fetal Period: a Postmortem Study 77
Gworys,Bohdan; Jeka,Slawomir; Brukiewa,Radoslaw; Rymko,Marcin.
The aim of this work was to analyze the stomach growth rate, variability of proportion and shape during prenatal period, as well as evaluation of final features differentiation process distinctive for perinatal period. It seems interesting to compare stomach growth analyzed in situ on post-mortem fetuses with results obtained by other authors evaluating this process in sonographic examinations. Research was conducted on 225 post-mortem fetuses 12th to 40 th week of fetal age. There were measurements of stomach total length, lengths of greater and lesser curvature and cardia and pylorus widths performed. We evaluated the thickness of stomach front wall and bottom and its total mass. Statistical analysis was performed using statistical program package...
Tipo: Journal article Palavras-chave: Stomach; Fetal development.
Ano: 2012 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022012000200017
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Early weaning of marine fish larvae onto microdiets: Constraints and perspectives 5
Person, L.
Weaning small sized marine fish larvae at first feeding directly onto compound pellets is still difficult, while good results can be obtained when used in combination with live prey or when a prefeeding period on live prey is provided up to a size of about 2-3 mg. Microdiets are generally well ingested as their acceptability and visual detection may be improved using feeding activators and increasing good perception contrast. In theory, food may be processed to have a correct nutritional balance, selection of high digestible components is very important as larval digestive system is not fully functional during the first 2 or 3 weeks of life.
Tipo: Text Palavras-chave: Hatching; Fatty acids; Amino acids; Nutritional requirements; Feeding behaviour; Stomach; Digestive system; Enzymes; Digestion; Physiology; Diets; Pellet feeds; Feeding; Fish larvae.
Ano: 1989 URL: http://archimer.ifremer.fr/doc/1989/acte-1422.pdf
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Estudo ultra-estrutural do estômago de Trichogenes longipinnis (Britski &amp; Ortega) (Pisces, Siluriformes, Trichomicteridae) 104
Pinheiro,Nadja Lima; Mendes,Rosa Maria M.; George,Luiz Ludovico; Chaves,Antonio Carlos P..
The observations made about the stomach of Trichogenes longipinnis (Britski &amp; Ortega, 1983) showed a rounded organ which has in its dorsal side an accessory structure - a cul de sac - that comunicates with it. The distal part of this dorsal accessory presents characteristic of an organ that exercise respiratory functions: reduction in the thickness of the mucosa and arrangement of an intrincate continuous capilar net in close contact with the superficial cells of the epithelium. In this portion there are no glands in the lamina propria. The epithelium shows a superficial squamous cels; they are very slim, and sometimes, with the capillary endothelium form a single barrier between the organ lumen and the blood. Polyhedric cells are also present in...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Pisces; Trichomicteridae; Trichogenes longipinnis; Stomach; Ultrastructure.
Ano: 1993 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751993000400009
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Foregut morphology of Pseudothelphusidae and Trichodactylidae (Decapoda: Brachyura) from northeastern Pará, Brazil 103
Alves,Soraya Tatiana M.; Abrunhosa,Fernando A.; Lima,Jô de F..
The gross morphology of foregut was investigated and described in detail for four freshwater crab species: a pseudothelphusid, Fredius reflexifrons (Ortmann, 1897) and three trichodactylids - Sylviocarcinus pictus (H. Milne-Edwards, 1853), Valdivia serrata White, 1847, and Dilocarcinus septemdentatus (Herbst, 1783). In general, the gastric mills of freshwater crabs showed a similar degree of complexity in relation to other marine species of Anomura and Brachyura previously described in the literature. However, significant morphological differences were observed among the analyzed species, as in ossicle numbers, features and connection types. A total of 38 ossicles were described for S. pictus and V. serrata and 37 ossicles for D. septemdentatus and F....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Freshwater crabs; Morphology; Stomach; Amazon region; Neotropic.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702010000200011
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Histological Description of Morphogenesis of the Gastroesophageal Mucosa of Gallus gallus domesticus (Linnaeus, 1758) 77
Ventura,Adriana; do Nascimento,Aparecida Alves; dos Santos,Marcos Antônio José; Vieira-Lopes,Danielle Alcântara; Sales,Armando; Pinheiro,Nadja Lima.
The ontogenesis of the gastroesophageal mucosa involves morphological alterations related to its structure and the function of each segment. The present study describes the histogenesis of the mucus-secreting epithelium and glands of the esophagus, gizzard, and proventriculus of the chicken (Gallus gallus), and identifies alterations in the secretion pattern of glycosaminoglycans (GAG's). We analyzed 38 chicken embryos, processed the material collected following the histological routine, and then stained it with hematoxylin-eosin for the analysis of tissue structure and with Gomori's trichrome for the identification of conjunctive tissue and collagen fibers. We used the PAS histochemical technique for the analysis of neutral GAG's and the AB pH 2.5...
Tipo: Journal article Palavras-chave: Chicken embryos; Development; Glycosaminoglycans; Esophagus; Stomach.
Ano: 2013 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022013000400030
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Histological Study of the Oesophagus and Stomach in Grey-Backed Shrike (Lanius tephronotus) 77
Zhu,Lei.
The microstructure of oesophagus and stomach in grey-backed shrike were examined by means of light microscopy. The results showed that the oesophagus glands were mucous glands, the shedding glandular cells and the mucin from the oesophagus glands secreted to the lumen. The number of the glands in the thoracic part was less than that of in the cervical part. The lumens of the glands showed an intense positive periodic acid-Schiff and Alcian blue reaction. There were two types of glands in the lamina propria. The simple tubular glands were located in the superficial lamella of the lamina propria, while compound tubular glands were located in the deep lamella. The epithelium was lined by a layer of cuticle in the intermediate zone between the proventriculus...
Tipo: Journal article Palavras-chave: Lanius tephronotus; Oesophagus; Stomach; Histology.
Ano: 2015 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022015000200009
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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) 5
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
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Lesions (ulcers and/or erosions) and desquamations location in the gastric mucosa from asymptomatic Quarter Horse foals: endoscopic survey 62
DEARO,Antonio Cezar de Oliveira; LOPES,Marco Aurélio Ferreira; GANDOLFI,Waldir.
Gastric ulcer accounts for an important cause of abdominal discomfort in young horses. Concerning either the presence or absence of clinical signs and their variations, the lesions location in the gastric mucosa and complications resulting from ulcerative lesions, four clinical syndromes have been described in foals: 1) Asymptomatic or silent ulcers; 2) Symptomatic or active ulcers; 3) Perforated ulcers; and 4) Gastric or duodenal obstruction. With the aim of studying the distribution of lesions (ulcers and/or erosions) and desquamations from the non-glandular epithelium in the gastric mucosa of young horses and a possible relationship between both alterations (lesion/desquamation), sixty Quarter Horse foals without signs of gastric disease underwent...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Stomach ulcer; Endoscopy; Foals; Stomach; Ecdysis.
Ano: 1999 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-95961999000100006
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Localization of Sugar Residues in the Stomach of Three Species of Monkeys (Tupaiidae glis, Nycticebus cocang and Callithrix jacchus) by Lectin Histochemistry 77
Fayed,Masoud Hassan; Elnasharty,Mohamed; Shoaib,Mahmoud.
The stomach of three species of non-human primates was investigated by lectin histochemistry to clarify the staining affinity and distribution patterns of their sugar residues. All gastric regions, with little differences between the deep and superficial parts of the same region, were rich in. in N-acetylglucosamine and/or neuraminic acid. Although, the superficial regions of the gastric mucosa were scanty in N-acetylgalactosamine, a- D-glucose and a -D-mannose, the deep parts of the gastric mucosa were rich in these sugars. In conclusion, there is a difference among the mucosubstances of surface and foveolar mucous cells, mucous neck cells, and gastric gland cells. This indicates heterogeneous composition of gastric mucus, or mucus molecules with...
Tipo: Journal article Palavras-chave: Histochemistry; Lectins; Non-human primates; Stomach.
Ano: 2010 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022010000100016
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Microarchitectural Adaptations in the Stomach of African Tree Pangolin (Manis tricuspis) 77
Ofusori,D. A; Caxton-Martins,E. A; Keji,S. T; Oluwayinka,P. O; Abayomi,T. A; Ajayi,S. A.
The microarchitecture of the pangolin's stomach favouring the high chitinous diet has been less waived into, despite extensive morphological investigations. Histological analysis of the microanatomy will provide powerful tools for interpretation to yield reliable insights. We investigated this by fixing the tissues in 10% formol saline for histological analysis. Serial sections at 5 µm thickness were subjected to general staining methods for lightmicroscopic study (Haematoxylin and eosin, Van Gieson's and Verhoeff's). The results revealed basic structural arrangements in their coats, with a modification of the epithelial lining of cardia and fundus into stratified squamous keratinized epithelium. These modifications were also reflected in the distribution...
Tipo: Journal article Palavras-chave: Stomach; Microarchitecture; Histological analysis; Diet; Coats.
Ano: 2008 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022008000300031
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Morphology and Vascularization of the Gastric Compartments in Three-Toed Sloth (Bradypus torquatus Illiger, 1811) 77
Rezende,L. C; Monteiro,J. M; Carvalho,P; Ferreira,J. R; Miglino,M. A.
The macroscopic anatomy and vascularization of the stomach compartments of Bradypus torquatus were examined in five animals from the University of São Paulo College of Veterinary Medicine and Zootechny collection. The method included aqueous perfusion of the arterial network, colored latex injection, fixation in formaldehyde (10%) and preservation in Laskovisk solution. Dissections were performed under mesoscopic light and photo documentations were performed for description and data analysis. In these animals, the largest abdominal organ was the stomach, which internally presented the cardiac, fundic and prepyloric regions, subdivided in six compartments (cardiac right, middle and left; fundic; pre-pyloric I and II). The stomach was irrigated by the left...
Tipo: Journal article Palavras-chave: Digestive tract; Stomach; Celiac artery; Bradypodidae; Xenarthra.
Ano: 2011 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022011000400035
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Morphometric Study in Stomach of Rabbits 77
Alves,José Roberto; Lopes,Luiz Roberto; Sasasaki,Tânia.
Thirty three healthy, New Zealand rabbits, underwent a total gastrectomy via laparotomy and subsequent evaluation of gastric dimensions. Were measured the lengths of the lesser and greater gastric curvature, in addition to the largest diameters of the organ. They presented average overall length of the lesser and greater curvature, respectively 6.7 cm and 27.3 cm. In addition, open surgical specimen presented a total area of 172.6 cm2. The sample was divided into two groups by age to perform comparisons between weight and stomach measures. Group 1 consisted of animals with age equal or less than 138 days and group 2 those with more than 138 days. No significant differences were found between the groups. This may suggest the use of younger animals to...
Tipo: Journal article Palavras-chave: Rabbit; Morphology; Stomach; Surgery; Training.
Ano: 2014 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022014000100038
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