Results 141 to 150 of about 24,019 (190)

Synthesis of hemin C from hemin

Journal of the Chemical Society, Chemical Communications, 1977
Hemin C (2) was prepared in 45–50% yield by the reduction of a solution of iron protopophyrin IX [hemin (1)] and L-cysteine with sodium borohydride in the presence of oxygen and cetyltrimethylammonium bromide micelle.
Shosuke Kojo, Seiyo Sano
openaire   +1 more source

Myocyte injury by hemin

In Vitro Cellular & Developmental Biology - Animal, 1993
Effects of free hemin on myocardium were investigated using a model of neonatal myocyte primary cultures. Cells were subjected to free hemin at concentrations up to 20 microM and equilibrated for 5 h at 37 degrees C. Distribution of hemin in media, cell sarcolemma, and cell interior was evaluated.
V, Bhoite-Solomon, G, Kessler-Icekson, N, Shaklai   +2 more
openaire   +2 more sources

Of Hemin Bondage

Science Signaling, 2003
Tang et al. used structural and electrophysiological analysis to uncover a novel role for heme (the iron-containing cofactor that forms a prosthetic group essential for oxygen transport in heme-containing proteins) as an inhibitor of K + flux through Slo1 BK ion channels.
openaire   +2 more sources

Effects of Hemin on Erythropoiesis

1989
It is clear that in vitro hemin increases the number of blood BFU-E derived colonies from normal donors. This occurs with sickle donors as well, despite the increased levels of hemin in vivo in these patients. The effect of hemin on relative gamma globin synthesis is inconsistent, however.
B P, Alter, J M, Schofield, L Y, He, R S, Weinberg   +3 more
openaire   +2 more sources

Electrocatalysis of carbon dioxide with hemin and hemin-coated latex

Journal of Electroanalytical Chemistry, 2005
Abstract Carbon dioxide was reduced catalytically with hemin in 2-propanol to reveal a cathodic wave at −1.1 V. The catalytic activity was demonstrated with the UV spectra in which Fe 2+ (hemin) was oxidized with CO 2 . Hemin was immobilized on polyallylamine–polystyrene latex as a quasi solid catalyst.
Yanfang Gao, Jingyuan Chen
openaire   +1 more source

Far-infrared studies on hemin and hemin-like complexes

Biochimica et Biophysica Acta (BBA) - General Subjects, 1971
Abstract Far-infrared absorption spectra in the submillimeter region were observed at about 2°K on some halogen complexes of protoporphyrin (Fe3+) and tetraphenylporphyrin (Fe3+) using in Michelson interferometer. The D values in the spin Hamiltonian H = D [S Z 2 − 1 3 S(S+1)] which describes the ground sextet of the 3d ...
openaire   +2 more sources

Metabolism of the Hemin Chromoproteins

Physiological Reviews, 1951
Page 418. David L. Drabkin, “Metabolism of the Hemin Chromoproteins.” Equation 5 should read: Cytochrome c (rat, dog, man, cow)/W0.7kg. = 0.039 gm. or 3.0 μm.
openaire   +2 more sources

The metabolism and toxicity of hemin in astrocytes

Glia, 2011
Hemin is cytotoxic, and contributes to the brain damage that accompanies hemorrhagic stroke. In order to better understand the basis of hemin toxicity in astrocytes, the present study quantified hemin metabolism and compared it to the pattern of cell death.
Theresa N, Dang, Glenda M, Bishop, Ralf, Dringen, Stephen R, Robinson   +3 more
openaire   +2 more sources

HEMIN BIOSYNTHESIS IN HAEMOPHILUS

Journal of Bacteriology, 1963
White, David C. (The Rockefeller Institute, New York, N.Y.) and S. Granick . Hemin biosynthesis in Haemophilus . J. Bacteriol. 85: 842–850. 1963.—Hemin-independent Haemophilus species have been shown to form hemin by the classical ...
D C, WHITE, S, GRANICK
openaire   +2 more sources

Hemin Lyses Malaria Parasites

Science, 1981
Malaria parasites isolated from mouse erythrocytes are lysed by ferriprotoporphyrin IX chloride (hemin) or by a chloroquine-hemin complex in amounts that could be produced by release of less than 0.1 percent of the heme in erythrocytic hemoglobin.
A U, Orjih, H S, Banyal, R, Chevli, C D, Fitch   +3 more
openaire   +2 more sources