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A Mouse Model of Vascularized Heterotopic Spleen Transplantation for Studying Spleen Cell Biology and Transplant Immunity
Published on: June 11, 2019
STUDIES OF METABOLISM IN THE DOG BEFORE AND AFTER REMOVAL OF THE SPLEEN
1John Herr Musser Department of Research Medicine of the University of Pennsylvania, Philadelphia.
The Journal of Experimental Medicine
|October 30, 2009
Summary
Splenectomy, the surgical removal of the spleen, generally shows no significant impact on canine metabolism or iron levels. Disturbances observed in one dog were attributed to anemia, not the absence of the spleen.
Area of Science:
- Veterinary Medicine
- Animal Metabolism
- Surgical Outcomes
Background:
- The spleen plays a role in various physiological processes, including immune response and red blood cell filtration.
- Understanding the metabolic consequences of splenectomy is crucial for assessing animal health post-surgery.
Purpose of the Study:
- To investigate the influence of splenectomy on nitrogen metabolism, fat utilization, and iron elimination in dogs.
- To determine if spleen removal causes significant metabolic disturbances or anemia.
Main Methods:
- Metabolism studies were conducted on four dogs before and at multiple intervals after splenectomy.
- Parameters assessed included nitrogen balance, fat utilization, iron elimination, hemoglobin, and red blood cell counts.
Main Results:
- Three of the four dogs showed no significant changes in nitrogen metabolism, fat utilization, or iron elimination post-splenectomy.
- Two dogs exhibited no anemia, and one showed only a mild reduction in red blood cells and hemoglobin.
- The fourth dog developed progressive anemia, accompanied by weight loss, nitrogen balance disturbance, and increased iron elimination.
Conclusions:
- The spleen does not appear to have a critical role in regulating canine metabolism.
- Metabolic disturbances observed in one dog were likely a consequence of anemia, not the splenectomy itself.

