The purification and properties of placental histaminase.

خالص سازی و بررسی خواص سینتیکی آنزیم هیستامیناز از گونه خلر ( Lathyrus sativus ) با استفاده از کروماتوگرافی تعویض آنیون

Background : The histamine poisoning directly correlates to improper preservation of foods. Diamine oxidase catalyses the oxidative deamination of histamine and other biogenic amines such as cadaverine and putrescine. Plant diamine oxidases are of widespread occurrence in Leguminaceae such as Cicer arietinum, Lathyrus sativus and Vigna radiata. For this reason, this study was carried out to exa...

The Inhibitory Effect of KCN, NaN3 and some Bivalent Ions on Lipoxygenase Activity of the Purified Human Placental

Lipoxygenase(LOX) catalyzes irreversible transfer of oxygen molecule to Arachidonic and Linoleic acid to produce 13 Hydroproxy Octadecadienoic acid. Recent studies showed the involvement of Lipoxygenase products, leukotrienes, in inflammations and Lipoxygenase pathways acts as mediators of early inflammatory events in atherosclerosis. The aim of the present study was purification and characteri...

Porphyria in Africa Serum ami Placental Histaminase in Bantu Pregnancy Dietary Fat and Coronary Heart Disease Venereal Infections

Histaminase and other tumor markers in malignant effusion fluids.

The association of histaminase with human cancer has been evaluated in this study by its presence at elevated levels in malignant effusion fluids. Over 400 fluid samples collected from 162 cancer patients of different primaries were analyzed in this study. Incidence of elevation of histarninase in the fluids were compared with that of three other tumor markers: carci noembryonic antigens (CEA);...

Human term placental cells: phenotype, properties and new avenues in regenerative medicine

The human placenta has long been the subject of scientific interest due to the important roles which it performs during pregnancy in sustaining the fetus and maintaining fetomaternal tolerance. More recently, however, researchers have begun to investigate the possibility that the placenta’s utility may extend beyond fetal development to act as a source of cells with clinically relevant properti...