PMID- 6061750 OWN - NLM STAT- MEDLINE DCOM- 19680122 LR - 20220408 IS - 0021-9738 (Print) IS - 0021-9738 (Linking) VI - 46 IP - 11 DP - 1967 Nov TI - Pathogenesis of hemolytic anemia in homozygous hemoglobin C disease. PG - 1795-811 AB - Hemoglobin C is less soluble than hemoglobin A in red cells, in hemolysates, and in dilute phosphate buffer. Its relative insolubility may be explained by electrostatic interactions between positively charged beta6-lysyl groups and negatively charged groups on adjacent molecules. Red cells from patients with homozygous hemoglobin C (CC) disease exhibit aberrant physical properties which suggest that the cells are more rigid than normal erythrocytes. They pass through membrane filters less readily than normal red cells do, and their viscosity is higher than that of normal cells. Differences from normal cells are exaggerated if mean corpuscular hemoglobin concentration (MCHC) is increased, by suspension in hypertonic salt solution. Increased rigidity of CC cells, by accelerating their fragmentation, may be responsible for formation of microspherocytes. These small dense cells are exceptionally rigid, and probably are even more susceptible to fragmentation and sequestration. Rigidity of CC cells can be attributed to a "precrystalline" state of intracellular hemoglobin, in which crystallization does not occur, although the MCHC exceeds the solubility of hemoglobin in hemolysates. FAU - Charache, S AU - Charache S FAU - Conley, C L AU - Conley CL FAU - Waugh, D F AU - Waugh DF FAU - Ugoretz, R J AU - Ugoretz RJ FAU - Spurrell, J R AU - Spurrell JR LA - eng PT - Journal Article PL - United States TA - J Clin Invest JT - The Journal of clinical investigation JID - 7802877 RN - 9008-00-8 (Hemoglobin C) SB - IM MH - Anemia, Hemolytic/*pathology MH - *Erythrocytes, Abnormal MH - Hemoglobin C/*analysis MH - Hemoglobin C Disease MH - Hemoglobinopathies MH - Humans MH - Splenomegaly PMC - PMC292930 EDAT- 1967/11/01 00:00 MHDA- 1967/11/01 00:01 PMCR- 1967/11/01 CRDT- 1967/11/01 00:00 PHST- 1967/11/01 00:00 [pubmed] PHST- 1967/11/01 00:01 [medline] PHST- 1967/11/01 00:00 [entrez] PHST- 1967/11/01 00:00 [pmc-release] AID - 10.1172/JCI105670 [doi] PST - ppublish SO - J Clin Invest. 1967 Nov;46(11):1795-811. doi: 10.1172/JCI105670.