Wyniki wyszukiwania

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Effects of prebiotics and synbiotics delivered in ovo on broiler small intestine histomorphology during the first days after hatching

100%

Bogucka J., Dankowiakowska A., Elminowska-Wenda G., Sobolewska A., Szczerba A., Bednarczyk M.

Folia Biologica

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2016

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tom 64

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nr 3

2

Delayed winter fur development in black mink

100%

Rouvinen K. I., Lawrie I. G., Johnson M. A.

Zeszyty Naukowe. Przegląd Hodowlany

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1996

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tom 29

3

Histomorphological and morphometric studies of the pancreatic islet cells of diabetic rats treated with extracts of Annona muricata

84%

Adeyemi D. O., Komolafe O. A., Adewole O. S., Obuotor E. M., Abiodun A. A., Adenowo T. K.

Folia Morphologica

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2010

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tom 69

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nr 2

Microanatomical changes in the pancreatic islet cells of streptozotocin induced diabetic Wistar rats were studied after treatment with methanolic extracts of Annona muricata leaves. Thirty adult Wistar rats were randomly assigned into three groups (control, untreated diabetic group, and A. muricata-treated diabetic group) of ten rats each. Diabetes mellitus was experimentally induced in groups B and C by a single intra-peritoneal injection of 80 mg/kg streptozotocin dissolved in 0.1 M citrate buffer. The control rats were intraperitoneally injected with an equivalent volume of citrate buffer. Daily intra peritoneal injections of 100 mg/kg A. muricata were administered to group C rats for two weeks. Post sacrifice the pancreases of the rats were excised and fixed in Bouin’s fluid. The tissues were processed for paraffin embedding and sections of 5 µm thickness were produced and stained with H & E, Gomori aldehyde fuchsin, and chrome alum haematoxylin-phloxine for demonstration of the β-cells of islets of pancreatic islets. Histomorphological and morphometric examination of the stained pancreatic sections showed a significant increase in the number, diameter, and volume of the β-cells of pancreatic islets of the A. muricata-treated group (5.67 ± 0.184 N/1000 µm², 5.38 ± 0.093 µm and 85.12 ± 4.24 µm³, respectively) when compared to that of the untreated diabetic group of rats (2.85 ± 0.361 N/1000 µm², 2.85 ± 0.362 µm and 69.56 ± 5.216 µm³, respectively). The results revealed regeneration of the β-cells of islets of pancreatic islet of rats treated with extract of A. muricata. (Folia Morphol 2010; 69, 2: 92–100)

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The influence of porcine pancreas digestion parameters and islet histomorphology on islet isolation outcome

84%

Kinasiewicz J., Sabat M., Antosiak-Iwanska M., Godlewska E., Sitarek E., Orlowski T.

Polish Journal of Veterinary Sciences

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2011

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tom 14

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nr 2

Transplantation of the pig islets of Langerhans is considered as the future treatment for patients suffering from type I diabetes mellitus. Despite the adaptation of modified Ricordi method and highly purified collagenase, the results of pancreas digestions are precarious. Selection of proper donor and optimal digestion procedure are fundamental. The aim of this study was to assess the impact of pancreas procuring parameters on pig islets yield. The pancreata were harvested from 69 market sows weighting over 150 kg. After intraductal injection of cold collagenase solution pancreata were transported in UW solution or under conditions of two layer method (TLM). In laboratory pancreata were digested at 37℃ according to Ricordi isolation method or stationary in the bottle. The particular parameters of isolation procedure were considered as substantial. Pig weight, volume of infused collagenase solution, TLM application and pancreas dividing before digestion positively affected islet yield. Additionally, the influence of pancreatic islet tissue histomorphology on isolation outcome was studied. Proper donor selection as well as adequate digestion parameters could improve pig islet recovery during islet isolation.

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Effects of specific bacterial or yeast cultures on intestinal histo-morphology and microflora in weaned piglets

84%

Krasucki W., Matras J., Koopman S. J., Bannink A., Mroz Z.

Polish Journal of Natural Sciences. Supplement

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2006

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tom 03

335-340

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Histomorphology of prepuberal ovaries in the South American fur seal [Arctocephalus australis Zimmerman, 1783]

84%

Katz H., Perez W., Bielli A., Chavez R.

Folia Morphologica

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2009

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tom 68

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nr 4

277-286

The South American fur seal reproductive histophysiology is scarcely described. This study provides a histological description of prepuberal South American fur seal (Arctocephalus australis) ovaries as well as three-dimensional reconstructions of subcapsular crypts and primordial follicles. Ovaries from fresh dead animals were processed for histology and sliced into serial sections. A portion of the superficial cortex was photographed, and the images were processed using BioVis3d software in order to generate 3-dimensional reconstructions. A. australis prepuberal ovaries conform to the basic structure of pinnipedian species, with a subcapsular crypts system made up of interconnecting cisternae and tubules with multiple openings to the surface. Generally, the primordial follicles were arranged in a monolayer beneath the tunica albuginea and were closely associated with subcapsular crypts. The large number of interstitial cells distributed throughout the cortex was the main histological feature in comparison with previous reports in other seals. Three-dimensional reconstructions modelled the subcapsular crypts microarchitecture and showed the close spatial relationship between the crypts and the primordial follicles. Despite the fact that the general ovarian histological structure was similar to that of other pinnipeds, the large number of interstitial cells is a distinctive feature that raises the question about the origin and function in A. australis with regard to the steroidogenic activity reported in other seal species. (Folia Morphol 2009; 68, 4: 277–286)

Ograniczanie wyników

Effects of prebiotics and synbiotics delivered in ovo on broiler small intestine histomorphology during the first days after hatching

Delayed winter fur development in black mink

Histomorphological and morphometric studies of the pancreatic islet cells of diabetic rats treated with extracts of Annona muricata

The influence of porcine pancreas digestion parameters and islet histomorphology on islet isolation outcome

Effects of specific bacterial or yeast cultures on intestinal histo-morphology and microflora in weaned piglets

Histomorphology of prepuberal ovaries in the South American fur seal [Arctocephalus australis Zimmerman, 1783]