During vertebrate evolution, duplicated hemoglobin (Hb) genes diverged with respect to functional properties as well as the developmental timing of expression. For example, the subfamilies of genes that encode the different subunit chains of Hb are ontogenetically regulated such that functionally distinct Hb isoforms are expressed during different developmental stages. In some vertebrate taxa, ...

We herein describe a method of depositing hemoglobin (Hb) and sulfonated polyaniline (SPAN) on GC electrodes that facilitate interfacial protein electron transfer. Well-defined, reproducible, chemically reversible peaks of Hb and SPAN can be obtained in our experiments. We also observed enhanced peroxidase activity of Hb in SPAN films. These results clearly showed that SPAN worked as molecular ...

A visible light triggered protein delivery system has been assembled through hydroxyl coordinated onto titania nanoparticles. Biomolecules such as hemoglobin (Hb) can be controlled-released from the hybrid material TiO(2)-DB-Hb by switching visible light on/off. The released Hb not only retains its senior structure but also can fulfil the enzymatic bioactivity. Controlled delivery of Hb stems f...

The purpose of this study was to determine changes in hematological and plasma indices of Common Carp Cyprinus carpio with regard to age, sex and hormonal treatment. Sixty fish were used to assess the age factor. Also, 20 fish including female and male were assigned to determine blood indices with regard to sex and hormonal treatment. The pituitary gland extract was used as hormone for males an...

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...

Hemoglobin is the iron-containing oxygen-transport metalloproteins in the red cells of the blood in mammals and other animals. A spheroidal heme protein having four subunits each consisting of a globular protein non-covalently bound, with an embedded heme group. Hb has a molecular weight of about 64456. The globular protein units of Hb is made up of two identical pairs of polypeptide chains, i....

Blood hemoglobin (Hb) is a parameter used to determine the prevalence of anemia. The increased plasma volume causes concentration decrease somewhat during pregnancy. As result, overall viscosity blood reduced. normal Hb value at end pregnancy averages 12.5 g/dL, and about 5% pregnant women have an level less than 11.0 g/dL. purpose this study was find out description levels in Nania Health Cent...

Objective. To determine changes in hemoglobin concentration at second measurements after a normal hemoglobin concentration was detected at first booking during pregnancy at low and at high altitudes. Methods. This is a secondary analysis of a large database obtained from the Perinatal Information System in Peru which includes 379,816 pregnant women and their babies from 43 maternity units in Pe...

It is hypothesized that oxidative reactions of hemoglobin driven by reactive oxygen species in the vasculature lead to endothelial cell injury or death. Bovine aortic endothelial cells were incubated with diaspirin cross-linked hemoglobin (DBBFHb), developed as a hemoglobin-based oxygen carrier, and hydrogen peroxide (H2O2), generated by the glucose oxidase system. The low steady flux of H2O2 o...