| Autor: |
Shugaba A; Department of Veterinary Pathology and Microbiology, Ahmadu Bello University, Zaria, Nigeria., Umar I, Omage J, Ibrahim ND, Andrews J, Ukoha AI, Saror DI, Esievo KA |
| Jazyk: |
angličtina |
| Zdroj: |
Journal of comparative pathology [J Comp Pathol] 1994 Jan; Vol. 110 (1), pp. 91-5. |
| DOI: |
10.1016/s0021-9975(08)80273-3 |
| Abstrakt: |
Differences in the distribution and concentration of O-acetyl and glycolyl groups in erythrocyte sialic acids of trypanotolerant N'dama and trypanosusceptible Zebu cattle were investigated. Erythrocyte surface sialic acid concentrations were 25.4 +/- 5.5 mg per dl and 5.9 +/- 0.97 mg per dl in N'dama and Zebu animals, respectively. In N'damas, O-acetyl and glycolyl groups were present in concentrations of 16.4 +/- 4.3 mg per dl and 12.8 +/- 2.9 mg per dl, respectively, whereas the corresponding values in Zebus were 2.8 +/- 5.0 mg per dl and 7.6 +/- 1.7 mg per dl, respectively. The differences between N'dama and Zebu cattle in surface sialic acids and in O-acetyl and glycolyl groups were significant (P < 0.01 to < 0.001). N'dama erythrocyte sialic acids had more O-acetyl than glycolyl groups while those of Zebus had less O-acetyl than glycolyl groups. These findings may be relevant to the trypanotolerance of N'dama cattle. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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