Abstract
Marjoram is characterized by containing compounds that are characterized by their antioxidant activity, such as Phenolic substances, especially phenolic acids, Carvacrol, Thymol, and flavonoids are among the most The active compound in antioxidants is hydroquinone, which was used as a sensorVital for cholesterol Hydroquinone derivatives have also revealed activities against lymphocytic leukemia .As for the other components of the marjoram plant they are tannins, alkaloids, saboniat, and terpenoids. (Terpenoids), Phenol Trip. This study aimed to investigate the antioxidant effects of an aqueous extract of Origanum majorana leaves on hematological parameters, liver enzymes, and serum proteins in rabbits. From 1 September, 2024, to 3 January 2025, at the University of Al-Zahrawi's Faculty of Medical Laboratory Technique. where the rabbits used in the experiment were housed in special cages. Twelve rabbits were divided into two groups, G1 receiving water and protein pellets as a control group and G2 receiving Origanum Majorana 150 mg/kg. The findings indicate that Origanum majorana has no discernible impact on the number of red blood cells and packed cell volume. Although Origanum Majorana significantly increases hemoglobin concentration and white blood cell count, The measures of total protein concentration, albumin concentration and globulin concentration. On other hand there is significant decrease effect of Origanum Majorana on Alanine transaminase concentration and Aspartate transaminase concentration. In calculate that Origanum Majoran has effective role in enhancement of immunity by increase white blood cell counts and has antioxidant effect by decrease liver enzymes and increase of liver proteins.