In the sickle cell syndromes, Hb A2 measurements aid in the differential diagnosis of sickle cell anemia from sickle-beta-thalassemia. The purpose of this study is to assess the Hb A2 levels in samples containing sickle hemoglobin (Hb S) by the use of an automated high performance liquid chromatography system (HPLC-Variant beta-thalassemia Short Program). The blood samples analyzed were from in...

Seven patients of Chinese origin who had haemoglobin (Hb) Q-H disease were studied. They were found to have a similar clinical phenotype to that of patients with deletional Hb H disease, who have a near identical genotypic configuration. The complete absence of Hb A in Hb Q-H disease and the similar clinical phenotype to deletional Hb H disease lends support to the observation that Hb Q-Thailan...

By TITUS H. J. HuIS sL&rc AND RALPH C. LEE I N A PREVIOUS PAPER6 we reported the discovery of an abnormal minor hemoglobin in a Negro family ( Fam. S ) in Georgia. This hemoglobin, designated as Hb-Flatbush0 , showed the following properties : ( a ) an electrophoretic mobility ( starch gel electrophoresis at pH 8.1 ) intermediate between Hb-S and Hb-F; ( b ) a chromatographic mobility ( DEAE-ce...

By BENNETT F. HORTON, ROBERT B. THOMPSON, ANDREE M. Dozy, CARL M. NECHTMAN, EVAN NIcHOLs AND TITUS H. J. HUISMAN D URING the past few years, some human hemoglobins have been found composed of one single type of polypeptide chain in contrast to the more common hemoglobins, composed of two types of polypeptide chains. The most important of these are Hb-Bart’s, composed of four of the y chains of ...

Approximately 5.1% of the US population has diabetes mellitus, and hemoglobin (Hb) A1c levels are routinely measured to monitor long-term glycemic control in these patients. Many laboratories use ion exchange chromatography for such measurements, and the presence of hemoglobin variants and hemoglobinopathies often results in abnormal peaks on the chromatogram. The goal of this study was to eval...

background studies on the association between maternal hemoglobin (hb) concentration and adverse pregnancy outcome have been inconsistent. many studies have shown the impact of hb concentration on pregnancy outcomes in adult women; however, it is not revealed in adolescent pregnant women. objectives the aim of this study was to examine the effect of hb concentration on birth outcomes in pregnan...

The grcat potential value of electron microscopy for biological research was often strcsscd and quickly understood in the middle 1930s, at the time when thc first laboratory models of transmission electron microscopes were being built by Ruska, yon Borrics (1, 2), and Marton (3, 4). The reasons were clear: the new instruments were expected to have a resolving power 40-50 times higher than the b...

Assess the state of public green areas, their importance and influence on environmental quality and living in urban centers is an arduous task considering the conceptual and scientific regarding quantification and data analysis methods divergence. In this study, we aimed to determine two indicators of public green areas relative to the percentage of public green areas (PPGA) and the public gree...

OBJECTIVE To examine the impact of hemoglobin levels in predicting outcomes and evaluate whether transfusion could improve the outcomes of chemotherapy on gastric cancer patients. METHODS A total 310 patients were divided into two groups: high Hb group (Hb >90 g/L) and low Hb group (Hb <90 g/L). A portion of patients in low Hb group received transfusion. The effect of hemoglobin level on the ...