scholarly journals Modulation of mitochondrial metabolism as a biochemical trait in blood feeding organisms: the redox vampire hypothesis redux

2018 ◽  
Vol 42 (6) ◽  
pp. 683-700 ◽  
Author(s):  
Caroline M. Ferreira ◽  
Matheus P. Oliveira ◽  
Marcia C. Paes ◽  
Marcus F. Oliveira
Author(s):  
H. J. Kirch ◽  
G. Spates ◽  
R. Droleskey ◽  
W.J. Kloft ◽  
J.R. DeLoach

Blood feeding insects have to rely on the protein content of mammalian blood to insure reproduction. A substantial quantity of protein is provided by hemoglobin present in erythrocytes. Access to hemoglobin is accomplished only via erythrocyte lysis. It has been shown that midgut homogenates from the blood feeding stable fly, Stomoxys calcitrans, contain free fatty acids and it was proposed that these detergent-like compounds play a major role as hemolysins in the digestive physiology of this species. More recently sphingomyelinase activity was detected in midgut preparations of this fly, which would provide a potential tool for the enzymatic cleavage of the erythrocyte's membrane sphingomyelin. The action of specific hemolytic factors should affect the erythrocyte's morphology. The shape of bovine erythrocytes undergoing in vitro hemolysis by crude midgut homogenates from the stable fly was examined by scanning and transmission electron microscopy.


Diabetes ◽  
2018 ◽  
Vol 67 (Supplement 1) ◽  
pp. 1846-P
Author(s):  
SRILAXMI KALAVALAPALLI ◽  
FERNANDO BRIL ◽  
ARIANA VERGARA ◽  
NISHANTH SUNNY ◽  
KENNETH CUSI

Diabetes ◽  
2019 ◽  
Vol 68 (Supplement 1) ◽  
pp. 288-LB
Author(s):  
JI EUN LEE ◽  
LEIGH GOEDEKE ◽  
YE ZHANG ◽  
RACHEL J. PERRY ◽  
RUSSELL GOODMAN ◽  
...  

2016 ◽  
Vol 3 (1) ◽  
Author(s):  
Christopher Everett Warren Clarke

Of all blood feeding invertebrates, few are more notorious than leeches. Throughout their existence as ectoparasites, leeches have evolved to release biological molecules in their saliva that act to counter the responses of the prey’s body to vascular trauma. Inadvertently, these very molecules have been used by humans for centuries for medicinal purposes; however, it is only recently that their cellular action has been elucidated. As a result, these compounds have been isolated and mass produced to treat a wide variety of conditions ranging from heart attack to Alzheimer’s disease and continued work suggests that these isolates will be an important future treatment for metastasis.


2014 ◽  
Vol 92 (11) ◽  
pp. 1119-1128 ◽  
Author(s):  
Christopher J. Hall ◽  
Leslie E. Sanderson ◽  
Kathryn E. Crosier ◽  
Philip S. Crosier

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