A histochemical study of the mucins in the digestive tract of the chicken

Pastor, Luis Miguel; Ballesta, José Antonio Camacho; Madrid, Juan Francisco; Pérez‐Tomás, Ricardo; Hernández, Francisco Velasco

doi:10.1016/s0065-1281(88)80076-x

Cited by 17 publications

(10 citation statements)

References 10 publications

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“…It indicated the presence of both neutral and acidic mucin, respectively. Such observations were similar to those demonstrated by Pastor et al (1988) and Imai et al (1991) in the propria glandular cells in the ventriculus of chicken and fowls, respectively. The presence of neutral and acid mucin may protect the mucosal surface and forms a resistant mucosal barrier in the ventriculus of the birds (Hamdi et al, 2013).…”

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confidence: 90%

Histomorphological and Histochemical Studies of the Stomach of the Mallard (Anas platyrhynchos)

Al-Saffar¹,

Al-Samawy²

2015

Asian J. of Animal Sciences

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The study aimed to find out the histomorphological and histochemical structures of the walls of the stomach parts in mallard. To conduct this investigation, twelve healthy birds were collected from local suppliers at Baghdad province. Later on, birds were subdivided into three equal subdivisions, each of four for gross, histological and histochemical approaches. All birds were anesthetized and their abdomens were dissected, then their stomach were identified and photographed in situ. Organs were grossly described and specimens were immersed either in 10% neutral buffered formalin or in Bouin's solution for histological fixation and then processed for histological and histochemical staining techniques, which were comprised Hematoxylin-eosin, Masson Trichrome, Periodic Acid Schiff (PAS) and PAS-Alcian Blue (AB) (pH 2.5). The gross findings showed that the stomach was consisted of two distinguishable chambers, that were proventriculus and ventriculus. The proventriculus was tubular-shaped organ. The ventriculus appeared fusiform in shape and covered by thin fatty tissue. There was well demarcation between proventriculus and ventriculus. Histologically, the proventriculus mucosa lining was simple columnar epithelium. The submucosal consists of numerous and voluminous deep submucosal glands. The covering of the ventriculus was simple cuboidal. Presence of thick cuticle layer with well-developed muscular stomach. Muscularis mucosa appeared characteristically thick layer of smooth muscle bundles arranged as, inner circular and outer longitudinal layers. The tunica muscularis appeared, as a very thick structure of smooth muscles fibers. Three layers of muscles were distinguished that were thin inner, outer longitudinal and very thick intermediate circular layers.

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supporting

confidence: 90%

Histomorphological and Histochemical Studies of the Stomach of the Mallard (Anas platyrhynchos)

Al-Saffar¹,

Al-Samawy²

2015

Asian J. of Animal Sciences

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“…MUC1, MUC5AC and MUC6 are the main constituents of the mucus barrier in the stomach (Audie et al 1993;De Boló s et al 1995;Ho et al 1995a;Jia et al 2010;Reis et al 1997). Previous histochemical studies on the stomach in birds have investigated the localization of the mucin carbohydrates, which are chains of numerous oligosaccharides bound to the mucin core proteins (Mogil'naia & Bogatyr', 1977, 1983Altamirano et al 1984;Inforzato de Lima & Sasso Wda, 1985;Pastor et al 1988;Pinheiro et al 1989;Imai et al 1991;Gheri et al 1994Gheri et al , 1995Sgambati et al 1995Sgambati et al , 1996. Moreover, early studies of changes in mucin expression during the development of the proventriculus and gizzard focused on alterations in the carbohydrate chain.…”

Section: Discussionmentioning

confidence: 99%

The differences between the localizations of MUC1, MUC5AC, MUC6 and osteopontin in quail proventriculus and gizzard may be a reflection of functional differences of stomach parts

2010

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Mucins are high molecular weight glycoproteins which constitute the major component of the mucus layer and are produce by many epithelial tissues in vertebrates. Osteopontin (OPN) is an adhesive phosphorylated glycoprotein that is expressed by a broad range of tissues and cells. Although gastric mucins MUC1, MUC5AC, MUC6 and OPN have been widely used in histological studies and in diagnostic pathology in order to diagnose gastric carcinomas, their localizations in the stomach of quail have not yet been studied. In this study, the localizations of MUC1, MUC5AC, MUC6 and OPN in the proventriculus and gizzard of Japanese quail during the post-hatching period were compared at light microscope levels by applying immunohistochemical methods. In all ages studied, the immunoreactivity of MUC5AC was present in the lining epithelium of both folds and superficial proventricular glands in the proventriculus, whereas MUC1, MUC6 and OPN reactivity was found in the oxynticopeptic cells of profound proventricular glands. In addition, some cells in the fold epithelium of the proventriculus showed a positive reaction to OPN. The immunoreactivity of MUC1 in gizzard was different from that of MUC5AC. Although MUC5AC was expressed in the cells of both the surface epithelium and profound glands of the gizzard, MUC1 was only localized in the profound glands of the gizzard. However, MUC6 and OPN immunoreactivity was absent in the gizzard. The results indicated that the differences between the localizations of MUC1, MUC5AC, MUC6 and OPN in quail proventriculus and gizzard may be a reflection of functional differences of stomach parts. Although the biological significances of the expressions of MUC1, MUC5AC, MUC6 and OPN in the quail stomach remains unknown, these notable glycoproteins may be associated with barrier function, host defence, and ⁄ or secretion.

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“…So, the muco-substances are mainly acidic in the kestrel and rose-ringed parakeet and entirely acidic in the linnet and collared dove. Sialo-and sulpho-mucins are widely distributed throughout the digestive system of the fowl (Pastor et al, 1988).…”

Section: Introductionmentioning

confidence: 99%

Histological Study on the Oesophagus and Crop in Various Species of Wild Bird

Rajabi

Nabipour

2009

Avian Biology Research

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The histology of the oesophagus and crop was studied in six species of birds: Rock Dove, Collared Dove, Rose-ringed Parakeet, Kestrel, House Sparrow and Linnet. In species, the epithelium of oesophagus and crop was a keratinised stratified squamous. The lamina propria was a loose connective tissue containing glands. Glands were either purely mucous or seromucous (mixed). In the rock dove, rose-ringed parakeet and collared dove, there were no glands either in the cervical part of oesophagus or in the crop. There were differences in the histochemistry of glands' secretions. The muscularis mucosa was present as a thick layer of smooth muscle fibres. The tunica submucosa was a loose connective tissue containing vessels and nerves. The tunica muscularis consisted of smooth muscle and was surrounded by the tunica adventitia at the cervical part of the oesophagus and crop, and by the tunica serosa at the thoracic part of the oesophagus.

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A histochemical study of the mucins in the digestive tract of the chicken

Cited by 17 publications

References 10 publications

Histomorphological and Histochemical Studies of the Stomach of the Mallard (Anas platyrhynchos)

Histomorphological and Histochemical Studies of the Stomach of the Mallard (Anas platyrhynchos)

The differences between the localizations of MUC1, MUC5AC, MUC6 and osteopontin in quail proventriculus and gizzard may be a reflection of functional differences of stomach parts

Histological Study on the Oesophagus and Crop in Various Species of Wild Bird

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