Abstract |
An American black family in whom hemoglobin J Baltimore and beta (+)-thalassemia genes coexisted is described. The proposita is a 23-year-old woman with a hemoglobin (Hb) level of 11.5 g/dl, microcytic, hypochromic indices, increased values of Hbs A2 and F, and alpha/non-alpha synthetic ratio of 1.52. Hbs A and J Baltimore (beta 16 Gly---Asp) constituted 12% and 81.3%, respectively, of her total hemoglobin. Her sister had a very similar peripheral blood picture, but Hbs A and J Baltimore constituted 6.8% and 85.5%, respectively, of her total hemoglobin, and the alpha/non-alpha synthetic ratio was 1.39. The mother had beta(+)-thalassemia trait only, a moderate degree of anemia, and greater synthetic imbalance (alpha/non-alpha raio of 1.73). These findings suggest that the presence of the Hb J Baltimore gene ameliorates the effects of a coexistent beta-thalassemia gene.
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Authors | S K Ballas, J Atwater, C Theriault, H C Kim, M Propst |
Journal | American journal of clinical pathology
(Am J Clin Pathol)
Vol. 75
Issue 6
Pg. 843-6
(Jun 1981)
ISSN: 0002-9173 [Print] England |
PMID | 6167160
(Publication Type: Case Reports, Journal Article, Research Support, Non-U.S. Gov't)
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Chemical References |
- Hemoglobins, Abnormal
- Hemoglobin J
- Globins
- Hemoglobin A
- Fetal Hemoglobin
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Topics |
- Adult
- Female
- Fetal Hemoglobin
(analysis)
- Globins
(biosynthesis, genetics)
- Hematocrit
- Hemoglobin A
(analysis)
- Hemoglobin J
(biosynthesis, genetics)
- Hemoglobins, Abnormal
(biosynthesis)
- Humans
- Thalassemia
(blood, genetics)
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