Description of epithelial granular cell in catshark spiral intestine: Immunohistochemistry and ultrastructure

2018 ◽  
Vol 280 (2) ◽  
pp. 205-213
Author(s):  
Bahram Sayyaf Dezfuli ◽  
Maurizio Manera ◽  
Giampaolo Bosi ◽  
Paolo Merella ◽  
Joseph A. DePasquale ◽  
...  
Keyword(s):  
Granular Cell ◽  
Spiral Intestine

Silver Staining of Pancreatic Islets as Revealed by Electron Microscopy

1967 ◽  
Vol 25 ◽  
pp. 44-45
Author(s):  
Kazuaki Misugi ◽  
Nobuko Misugi ◽  
Hiroshi Yamada
Keyword(s):  
Pancreatic Islet ◽  
Silver Staining ◽  
Islet Cells ◽  
Severe Hypoglycemia ◽  
Granular Cell ◽  
Electron Microscopic Level ◽  
Staining Reaction ◽  
Electron Microscopic ◽  
Pancreatic Islet Cell ◽  
D Cell

The authors had described the fine structure of a type of pancreatic islet cell, which appeared different from typical alpha and beta cells, and tentatively considered that this third type of granular cell probably represents the D cell (Figure 1).Since silver staining has been widely used to differentiate different types of pancreatic islet cells by light microscopy, an attempt to examine this staining reaction at the electron microscopic level was made.Material and Method: Surgically removed specimens from three infants who suffered from severe hypoglycemia were used. The specimens were fixed and preserved in 20% neutral formalin. Frozen sections, 30 to 40 micron thick, were prepared and they were stained by Bielschowsky's method as modified by Suzuki (2). The stained sections were examined under a microscope and islet tissues were isolated. They were fixed in 1% osmium tetroxide in phosphate buffer for one hour and embedded in Epon 812 following dehydration through a series of alcohols and propylene oxide.

Effect of verapamil on cytoplasmic distribution of granules and microfilaments in amphibian urinary bladder

1988 ◽  
Vol 46 ◽  
pp. 324-325
Author(s):  
A.J. Mia ◽  
L.X. Oakford ◽  
T. Yorio
Keyword(s):  
Urinary Bladder ◽  
Water Flow ◽  
Morphological Changes ◽  
Granular Cell ◽  
Cytosolic Calcium ◽  
Calcium Storage ◽  
Amphibian Urinary Bladder ◽  
Vesicular Membrane ◽  
High Concentrations ◽  
Cytoskeletal System

The amphibian urinary bladder has been used as a ‘model’ system for studies of the mechanism of action of antidiuretic hormone (ADH) in stimulating transepithelial water flow. The increase in water permeability is accompanied by morphological changes that include the stimulation of apical microvilli, mobilization of microtubules and microfilaments and vesicular membrane fusion events . It has been shown that alterations in the cytosolic calcium concentrations can inhibit ADH transmembrane water flow and induce alterations in the epithelial cell cytomorphology, including the cytoskeletal system . Recently, the subapical granules of the granular cell in the amphibian urinary bladder have been shown to contain high concentrations of calcium, and it was suggested that these cytoplasmic constituents may act as calcium storage sites for intracellular calcium homeostasis. The present study utilizes the calcium antagonist, verapamil, to examine the effect of calcium deprivation on the cytomorphological features of epithelial cells from amphibian urinary bladder, with particular emphasis on subapical granule and microfilament distribution.

Multiple granular cell schwannomas

1971 ◽  
Vol 103 (5) ◽  
pp. 557b-557 ◽  
Author(s):  
W. B. Hurlbut
Keyword(s):  
Granular Cell

Granular Cell Myoblastoma of the Esophagus (Abrikossoff's Tumor)

1960 ◽  
Vol 38 (5) ◽  
pp. 805-809 ◽  
Author(s):  
Osvaldo Franco de Gouveia ◽  
Abérico Arantes Pereira ◽  
M. Barreto Netto ◽  
A. Machado Vilhena ◽  
Gilvan Dutra ◽  
...  
Keyword(s):  
Granular Cell ◽  
Granular Cell Myoblastoma

Abstract #804: Granular Cell Tumor of the Neurohypophysis

2017 ◽  
Vol 23 ◽  
pp. 163
Author(s):  
Dalitza Alvarez-Valentin ◽  
Milliette Alvarado Santiago ◽  
Loida Gonzalez-Rodriguez ◽  
Margarita Ramirez-Vick ◽  
Juan Perez-Berenguer
Keyword(s):  
Granular Cell Tumor ◽  
Granular Cell ◽  
Cell Tumor

Granular Cell Tumor Simulating Breast Malignancy: A Case Report

2006 ◽  
Vol 55 (2) ◽  
pp. 199 ◽  
Author(s):  
Sung Soo Lee ◽  
Yun Woo Chang ◽  
Duek Lin Choi ◽  
Dong Erk Goo ◽  
Seung Boo Yang ◽  
...  
Keyword(s):  
Case Report ◽  
Granular Cell Tumor ◽  
Granular Cell ◽  
Cell Tumor ◽  
Breast Malignancy
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