Other articles where hemoglobin S is discussed: race: Modern scientific explanations of human biological variation: The sickle cell trait (hemoglobin S), for example, is found chiefly in those regions of the tropical world where malaria is endemic. Hemog
Sickle Cell Trait and Hemoglobin C Trait说明书
hemoglobin s (hbs) is one of the most common hereditary hematological alterations. in brazil, the frequency of the sickle cell trait (hbas) varies from 2% to 8%. thus, there is an estimate of more than two million carriers of the hbas sickle cell trait in brazil. different to homozygous...
sickle-shaped, which can cause death. A person in whom both beta-globin genes are abnormal (they produce hemoglobin S) has sickle cell disease, which can cause serious problems. Both parents must have either the sickle cell trait or the disease itself for a child to have sickle cell disease...
Hemoglobin S:The most common type of abnormalhemoglobinand the basis of sickle celltraitand sickle cellanemia. Hemoglobin Sdiffers from normal adult hemoglobin (called hemoglobin A) only by a singleamino acidsubstitution (a valine replacing aglutaminein the 6th position of the beta chain of globin...
Hemoglobin S, a variant form of hemoglobin, is present in patients with sickle cell disease (HbSS) and sickle cell trait (HbAS). A single substitution of valine for glutamic acid at the sixth position in the β-polypeptide chain causes a significant change in the physical characteristics of th...
hemoglobin S词源英文解释 The first known use of hemoglobin S was in 1954 hemoglobin S医学词典英英释义 hemoglobin Snoun an abnormal hemoglobin occurring in the red blood cells in sickle cell anemia and sickle-cell trait and differing from hemoglobin A in having a valine residue substituted for the...
Materials and Methods: Three groups were studied and consisted in 31 controls (group AA), 26 sickle cell trait (group AS) and 29 SCD patients (group SS) at steady state. Hemoglobin phenotype was assessed by combination of cation-exchange high performance chromatography (beta-thal short program ...
he·mo·glo·bin S [MIM*141900] an abnormal Hb with substitution of a valyl residue for a glutamyl residue at the sixth position of the β chain; the formula is α2Aβ2S, or, more specifically, α2Aβ26Glu→Val. Heterozygous state: sickle cell trait, no anemia, Hb S 20-45% of ...
Hemoglobin S (sickle cell trait) was the most frequent variant found (14%), followed by hemoglobin E (4.4%), Fetal (2.6%) and C (1%). Conclusion Prevalence of hemoglobin S was consistent with populations from other countries, but it was lower than other Ecuadorian afro-descendent ...