Method for enhancing red blood cell quality and survival during storage
First Claim
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1. A method for enhancing red blood cell quality and survival during storage comprising(a) depleting a red blood cell sample of leukocytes;
- (b) depleting said leukocyte depleted red blood sample of platelets;
(c) adding an additive solution having a pH ranging from 5.5 to 7.0;
(d) depleting said leukoreduced and platelet reduced red blood cell sample of both oxygen and carbon dioxide prior to storage, wherein carbon dioxide is depleted to a level of 5 mmHg at 21-25°
C.; and
(e) transferring the leukocyte, platelet and oxygen- and carbon dioxide-depleted red blood cell sample to an oxygen- and carbon dioxide-impermeable environment for storage, wherein said red blood cell sample has an acidic pH,thereby enhancing red blood cell quality and survival during storage.
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Abstract
The present invention is a method for enhancing the quality and survival of red blood cells during storage by depleting the red blood cells of both carbon dioxide and oxygen and maintaining 2,3-diphosphoglycerate acid levels.
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Citations
17 Claims
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1. A method for enhancing red blood cell quality and survival during storage comprising
(a) depleting a red blood cell sample of leukocytes; -
(b) depleting said leukocyte depleted red blood sample of platelets; (c) adding an additive solution having a pH ranging from 5.5 to 7.0; (d) depleting said leukoreduced and platelet reduced red blood cell sample of both oxygen and carbon dioxide prior to storage, wherein carbon dioxide is depleted to a level of 5 mmHg at 21-25°
C.; and(e) transferring the leukocyte, platelet and oxygen- and carbon dioxide-depleted red blood cell sample to an oxygen- and carbon dioxide-impermeable environment for storage, wherein said red blood cell sample has an acidic pH, thereby enhancing red blood cell quality and survival during storage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for enhancing red blood cell quality and survival during storage comprising
(a) reducing oxygen and carbon dioxide in a red blood cell sample comprising an acidified additive solution prior to storage; - and
(b) storing the oxygen and carbon dioxide reduced red blood cell sample in an oxygen and carbon dioxide-impermeable storage environment, wherein said red blood cell sample has an acidic pH, wherein adenosine triphosphate (ATP) and 2,3-diphosphoglycerate (2,3-DPG) levels are optimized during storage in the oxygen- and carbon dioxide-impermeable storage environment. - View Dependent Claims (14, 15, 16, 17)
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Specification