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II. HEMOGLOBIN AND BILE PIGMENT OVERPRODUCTION IN THE SPLENECTOMIZED BILE FISTULA DOG
R E Knutti1, W B Hawkins, G H Whipple
1Department of Pathology, School of Medicine and Dentistry, The University of Rochester, Rochester, N. Y.
The Journal of Experimental Medicine
|October 30, 2009
Summary
Bile fistula dogs with blood destruction produced excess bile pigment and hemoglobin. Globin, saved from destroyed red cells, may be crucial for new hemoglobin synthesis.
Area of Science:
- Biochemistry
- Hematology
- Physiology
Background:
- Bile fistula dogs exhibit significant pigment excess following blood destruction induced by Bartonella or hydrazine.
- Standard anemic dogs show limited new hemoglobin production on similar diets.
Purpose of the Study:
- To investigate the dynamics of hemoglobin formation and destruction during rapid simultaneous processes.
- To explore the body's capacity for pyrrol aggregate and globin utilization in hemoglobin synthesis.
Main Methods:
- Inducing blood destruction in bile fistula dogs using Bartonella or hydrazine.
- Analyzing pigment and hemoglobin levels in dogs on controlled diets.
- Observing hemoglobin production and destruction rates.
Main Results:
- Bile fistula dogs produced substantial amounts of new hemoglobin and bile pigment.
- Simultaneous rapid hemoglobin formation and destruction complicate direct measurement of individual processes.
- The body efficiently produces pyrrol aggregates for hemoglobin synthesis.
- Globin from destroyed red cells is likely recycled for new hemoglobin construction.
Conclusions:
- Globin availability can be a critical factor in new red blood cell hemoglobin synthesis.
- Further research is needed to understand globin's construction and internal metabolism.
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