Toxic effects of arsenic on human erythrocytes

Author(s):  
Mario Suwalsky ◽  
Cecilia Rivera ◽  
Fernando Villena ◽  
Carlos Sotomayor
2020 ◽  
Vol 68 ◽  
pp. 104964
Author(s):  
Karla Petit ◽  
Mario Suwalsky ◽  
José R. Colina ◽  
David Contreras ◽  
Luis F. Aguilar ◽  
...  

2009 ◽  
Vol 241 (1) ◽  
pp. 14-22 ◽  
Author(s):  
Shobana Ganesan ◽  
Babu L. Tekwani ◽  
Rajnish Sahu ◽  
Lalit M. Tripathi ◽  
Larry A. Walker

1998 ◽  
Vol 24 (3) ◽  
pp. 280-295 ◽  
Author(s):  
Chris T.A. Evelo ◽  
Anita A.M.G Spooren ◽  
Rob A.G. Bisschops ◽  
Leo G.M. Baars ◽  
John M. Neis

Author(s):  
J. Sepulveda-Saavedra ◽  
I. Vander-Klei ◽  
M. Venhuis ◽  
Y. Piñeyro-Lopez

Karwinskia humboldtiana is a poisonous plant that grows in semi desertic areas in north and central México. It produces several substances with different toxic effects. One of them designated T-514 damages severely the lung, kidney and liver, producing in the hepatoeyte large intracellular fat deposits and necrosis. Preliminary observations demonstrated that three is a decrease in the amount of peroxisomes in the hepatocytes of experimentally intoxicated rats and monkeys. To study the effect exerted by the T-514 on peroxisomes, a yeast model was selected, thus, three species: Saccha romices cerevisiae, Ilansenula polymorpha and Candida boidinii were used, because there is information concerning their peroxisome's morphology, enzyme content, biological behaviour under different culture conditions and biogenesis.


Author(s):  
M. W. Brightman

The cytological evidence for pinocytosis is the focal infolding of the cell membrane to form surface pits that eventually pinch off and move into the cytoplasm. This activity, which can be inhibited by oxidative and glycolytic poisons, is performed only by cell processes that are at least 300A wide. However, the interpretation of such toxic effects becomes equivocal if the membrane invaginations do not normally lead to the formation of migratory vesicles, as in some endothelia and in smooth muscle. The present study is an attempt to set forth some conditions under which pinocytosis, as distinct from the mere inclusion of material in surface invaginations, can take place.


Author(s):  
S. A. Livesey ◽  
A. A. del Campo ◽  
E. S. Griffey ◽  
D. Ohlmer ◽  
T. Schifani ◽  
...  

The aim of this study is to compare methods of sample preparation for elemental analysis. The model system which is used is the human erythrocyte. Energy dispersive spectroscopic analysis has been previously reported for cryofixed and cryosectioned erythrocytes. Such work represents the reference point for this study. The use of plastic embedded samples for elemental analysis has also been documented. The work which is presented here is based on human erythrocytes which have been either chemically fixed and embedded or cryofixed and subsequently processed by a variety of techniques which culminated in plastic embedded samples.Heparinized and washed erythrocytes were prepared by the following methods for this study :(1). Chemical fixation in 4% paraformaldehyde/0.25% glutaraldehyde/0.2 M sucrose in 0.1 M Na cacodylate, pH 7.3 for 30 min, followed by ethanol dehydration, infiltration and embedding in Lowicryl K4M at -20° C.


1973 ◽  
Vol 131 (1) ◽  
pp. 162-166 ◽  
Author(s):  
W. S. Harris
Keyword(s):  

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