Histology of the small intestine in the common pheasant (Phasianus colchicus): A scanning electron microscopy, histochemical, immunohistochemical, and stereological study

2021 ◽  
Author(s):  
Nader Goodarzi ◽  
Mohsen Akbari Bazm ◽  
Sadra Poladi ◽  
Fatemeh Rashidi ◽  
Bahareh Mahmoudi ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Small Intestine ◽  
Phasianus Colchicus ◽  
Common Pheasant ◽  
The Common ◽  
Scanning Electron

Etching of the Test Surface of Benthonic Foraminifers due to Ingestion by the Gastropod Littorina littorea Linné

1971 ◽  
Vol 8 (11) ◽  
pp. 1487-1491 ◽  
Author(s):  
D. A. Walker
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Littorina Littorea ◽  
Test Surface ◽  
Partial Dissolution ◽  
The Common ◽  
Wall Construction ◽  
Acidic Nature ◽  
Scanning Electron

Investigations by scanning electron microscopy have revealed that ingestion of Rosalina floridana (Cushman) and Quinqueloculina seminulum (Linné) (Foraminiferida) by the common periwinkle Littorina littorea Linné results in severe etching of the surface veneer in the rotalids studied, and removal of the surface veneer and partial dissolution of the underlying tabular layer of calcite in the miliolids examined. The acidic nature of the digestive juices is suggested as the agent responsible for this phenomenon. Observations of test wall construction is compared to current models of calcite secretion.

scholarly journals Scanning Electron Microscopy of the Small Intestine during gluten-Challenge in Celiac Disease.

1992 ◽  
Vol 55 (Suppl) ◽  
pp. 125-130 ◽  
Author(s):  
F. M. MAGLIOCCA ◽  
M. BONAMICO ◽  
V. PETROZZA ◽  
S. CORRER ◽  
M. MONTUORI ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Small Intestine ◽  
Celiac Disease ◽  
Scanning Electron

scholarly journals Infection of the Colon of the Rhesus Monkey by Spiral-Shaped Organisms

1982 ◽  
Vol 19 (7_suppl) ◽  
pp. 26-32 ◽  
Author(s):  
J. Zeller ◽  
A. Takeuchi
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Small Intestine ◽  
Macaca Mulatta ◽  
Brush Border ◽  
Rhesus Monkeys ◽  
Clinically Normal ◽  
Intestinal Spirochetosis ◽  
Hematoxylin And Eosin ◽  
Scanning Electron

Intestinal spirochetosis, an infection of the mucosa by spiral-shaped organisms, was studied in clinically normal rhesus monkeys (Macaca mulatta) by histology, transmission and scanning electron microscopy. The incidence of intestinal spirochetosis was 42% in 221 monkeys. Spiral organisms stained with hematoxylin and eosin (HE) appeared as a broad basophilic haze on the colonic surface and were strongly positive by the Warthin-Starry stain. Spiral-shaped bacteria include two structurally different organisms: spirochetes and flagellated microbes. They intimately populated the brush border of the surface of the epithelium of the large intestine. They were absent in the crypts and in the small intestine. Infection by spirochetes produced no alteration of cytocomponents of the underlying host structures. Spirochetes and flagellates infrequently penetrated beyond the brush border into the epithelial cytoplasm and also into the lamina propria. Even in cases where invasion was documented, no inflammatory response was found.

The ultrastructure of the molluscum contagiosum lesion

1990 ◽  
Vol 48 (3) ◽  
pp. 218-219
Author(s):  
Veronika Burmeister ◽  
W.B. Shelley
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Skin Lesions ◽  
Molluscum Contagiosum ◽  
Epidermal Keratinocytes ◽  
Razor Blade ◽  
Tumor Mass ◽  
Common Wart ◽  
The Common ◽  
Scanning Electron

Molluscum contagiosum is unique among the viral induced growths of the skin. Unlike other viral tumors, the molluscum contagiosum lesion is a mass made up of myriads of free, discrete virions. It is not a proliferating growth of epidermal keratinocytes such as one observes in the common wart. There is no better way to perceive the nature of this tumor mass than by scanning electron microscopy.Skin lesions of molluscum contagiosum were excised from patients and immediately fixed in 2.5% glutaraldehyde. After fixation the specimens were rinsed in Millonig’s Phosphate buffer. The entire lesion was than cross-sectioned with a razor blade, postfixed in 1% OsO4, rinsed again in buffer, dehydrated in grading ETOH, critical point dried, positioned on an aluminum stub and gold-coated. Examination was made using a JEOL SEM (JSM-35).

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