Histological, Histochemical and Ultrastructure Studies on the Ostrich Pancreas (Struthio camelus)

Helmy, Seham A.; Soliman, Mohammed T. A.

doi:10.21608/eajbsd.2018.29180

Cited by 6 publications

(13 citation statements)

References 19 publications

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“…Moreover, This result is in line with Mikami et al (1985) in Japanese quail, but differs in the shape of the alpha cells, they stated the alpha cells had a columnar shape. The result in the present study of beta cells is in line with the result of Helmy and Soliman (2018) in ostrich.The observation of delta cells in this study is in line with Al-Shaeli ( 2010) in duck pancreas, Furthermore, some researchers recorded that delta cells were not found in pancreatic islets of some birds such as Stornelli et al (2006) in ostrich and Mobini (2011) in goose.…”

Section: The Pancreatic Islet Cellssupporting

confidence: 91%

“…The microscopicscanning of the duck pancreas revealed that pancreatic islets were found in three types alpha, beta, and mixed islets(Figure 2). This result agrees with in quails, Simsek et al (2009) in the Falcon, Al-Shaeli (2010) in duck, and Helmy and Soliman (2018) in ostrich. Moreover, this result is in contrast with Al-Agele and Mohammed (2012) on golden eagle and Jaafar (2019) in Falcon, those researchers reported the islets are found in two types of darks and light islets in these birds.…”

Section: The Structure Of Pancreatic Isletssupporting

confidence: 91%

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Histological and immunohistochemical study of the endocrine pancreas of duck (Anas platyrhnchos)

Hussein

Bargooth

2022

ijhs

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Because ducks are one of the important poultry in Iraq and due to the important role of the pancreas in the digestive process, this study was conducted to obtain the histological structure of the duck endocrine pancreas with its immunohistochemical study. The pancreas samples were taken from 10 indigenous adult male ducks. The histological study used two stains. Primary and secondary antibodies to the glucagon and insulin hormones were used for the immunohistochemical study. The result of the current study revealed three types of islets (alpha, beta, and mixed islets) in the duck pancreas. Alpha islets consisted of mainly alpha cells with few delta cells, and beta islets contained beta cells and a few delta cells. Also, alpha and beta cells with numerous delta cells were presented in mixed islets. The pancreatic islets are concentrated in the splenic lobe. The immunohistochemical result found the average glucagon intensity in alpha and mixed islets of duck pancreas was (295.3 ± 8.32 megapixel, and 110.2 ± 4.35 megapixel) respectively, and the average insulin intensity in beta and mixed islets of ducks was (265.4 ± 5.14 megapixels, 122.1 ± 3.65 megapixel) respectively.

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Section: The Pancreatic Islet Cellssupporting

confidence: 91%

Section: The Structure Of Pancreatic Isletssupporting

confidence: 91%

Histological and immunohistochemical study of the endocrine pancreas of duck (Anas platyrhnchos)

Hussein

Bargooth

2022

ijhs

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“…Accordingly, the alpha islets are primarily composed of moderately stained alpha cells and several weakly stained beta cells. The beta islets mildly stained with TB dye is densely packed with beta cells and sparsely packed with alpha and delta cells (1). The use of the toluidine blue stain in this study demonstrates that Langerhans islets are negative in all cells to save the Beta cells, which exhibit a weak reactivity with toluidine blue (light pink), while the secretory units are negative.…”

Section: Discussionmentioning

confidence: 55%

“…In the digestive system, the pancreas is a key glandular organ. The initial investigations establish that most bird species have three distinct pancreatic cell types (A, B, and D cells) (1). In addition, some previous studies report that the avian pancreas is separated from the right side of the abdominal cavity in all birds.…”

Section: Introductionmentioning

confidence: 97%

Histomorphological and carbohydrate histochemical study of the pancreas in native ducks (Anas Platyrhynchos)

Mahmood¹,

Ahmed²,

Sultan³

et al. 2022

IJVS

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In the current study, the histomorphological and histochemical characteristics of the pancreas in native ducks are examined with a particular emphasis on the structure of pancreatic acini and Langerhans islets (LI). Five adult male native ducks (Anas Platyrhynchos) are examined from the local market of Mosul. All samples are processed routinely for histological and histochemical analyses. Hematoxylin & Eosin, PAS-AB (pH 2.5), Toluidine blue, and Masson's Trichrome stains are used. The morphological examination reveals that male ducks' pancreas is made up of three major lobes (dorsal, ventral, and third lobes). The pancreas is a small, semi-wide structure with a pale to white pinkish tone located between the duodenum branches. The findings show that the pancreas is enveloped in a thin layer of loose connective tissue capsule and mesothelial; septa extend from the capsule into parenchyma dividing it into many lobules. The study concludes that the pancreatic lobules are composed of a large area of exocrine acini and a small amount of LI, with an exocrine component consisting of round or oval acini with zymogen granules. The endocrine component is represented by three distinct LI types and lacks defined boundaries. Alpha islets are formed of alpha cells (ACs) and a few delta cells (DCs); beta islets are composed of peripherally located beta cells (BCs) and a few (DCs); and mixed islets are composed of alpha, beta, and delta cells. The present study sheds light on the morphological, histological, and histochemical characteristics of the indigenous duck pancreas. However, future research should focus on the pancreas of other bird species as well.

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“…The splenic lobe also is not persistent. For example, this lobe is absent in mynah (Saadatfar & Asadian, 2009), ostrich (Helmy & Soliman, 2018), Bulbul (Al‐Khakani et al, 2019), and Kestrel (Al‐Haaik, 2019; Palmieri & Shivaprasad, 2014). However, the splenic lobe is reported in falcon (Simsek et al, 2009), and golden eagle (Al‐agele & Mohammed, 2012), as captive birds.…”

Section: Discussionmentioning

confidence: 99%

Characterization of the pancreas of common pheasant (Phasianus colchicus): A light and transmission electron microscope study

Mohammadi,

Goodarzi

2023

Microscopy Res & Technique

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The present work was carried out to investigate the structure and ultra structure of the pancreas in the common pheasant (Phasianus colchicus). Totally, five healthy adult pheasant were used. The pancreas was assessed using histochemistry and transmission electron microscopy (TEM). The pancreas was composed of four lobes: dorsal, ventral, third, and splenic lobes. These lobes emptied into ascending duodenum through three excretory ducts as: ventral duct, splenic duct, and a common duct for dorsal and third lobes. The exocrine pancreas was constituted of pyramidal‐shaped acinar cells with aggregation of zymogen granules at their apical cytoplasm. The endocrine pancreas was identified as large islet of Langerhans as α islets and small islets as β ones. No mixed islet was observed. At the level of TEM, two types of acinar cells were distinguished: Dark cells with electron dense cytoplasm, and indented nucleus, Light cells with electron lucent cytoplasm, and regular nucleus. The α islets were mainly constituted by A and D cells, whereas the β islets principally contained B cells and a few A cells. No D cells were identified in β islets. B cells were characterized by their polymorphic granules which were surrounded by a narrow halo zone. The granules of D cells were quite different. These cells contained large spherical granules with lower density as compared to the A or B granules surrounded by a limiting membrane. In conclusion, the pancreas of the common pheasant has a species‐specific feature which must be considered in phylogenic studies.Research Highlights The common pheasant's pancreas was composed of four lobes as dorsal, ventral, third, and splenic lobe. There were three excretory ducts. Ventral duct for ventral lobe, a common duct for both dorsal and third lobes, and a distinct splenic duct for splenic lobe. The exocrine acini were composed of two distinct types of cells: dark cells and light cells. The large alpha islets were composed of alpha cells and a few numbers of delta cells and small beta islets were composed of beta cells and a few numbers of alpha cells.

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Histological, Histochemical and Ultrastructure Studies on the Ostrich Pancreas (Struthio camelus)

Cited by 6 publications

References 19 publications

Histological and immunohistochemical study of the endocrine pancreas of duck (Anas platyrhnchos)

Histological and immunohistochemical study of the endocrine pancreas of duck (Anas platyrhnchos)

Histomorphological and carbohydrate histochemical study of the pancreas in native ducks (Anas Platyrhynchos)

Characterization of the pancreas of common pheasant (Phasianus colchicus): A light and transmission electron microscope study

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