we found that SP600125 substantially preserved RGC density in rats compared to the automobile treated group after 7 h of IOP elevation. The of this study suggest that SP600125 inhibits the JNK cascade Imatinib STI-571 of events responsible for RGC apoptosis and supports RGC survival. In summary, the of this study show that the progressive reduction of RGC over the course of weeks and the decrease in inner retinal thickness are a direct response to the extended duration of applying 45 mmHg IOP to the rat eye. SP600125 shields RGCs from this insult, indicating that JNK activation is just a key signaling component that plays a role in RGC reduction in this model and might be a potential neuro-protective goal for treating PACG attacks or other designs of glaucomatous optic neuropathy and retinopathy. To characterize the practical role of JNK and other apoptotic pathways in grape-seed extract induced apoptosis in human leukemia cells by using pharmacologic and genetic approaches. Jurkat cells were treated with various concentrations of GSE for 12 h and mRNA 24 h, or with 50 ug/ml of GSE for various time intervals, after which apoptosis, caspase activation, and cell-signaling pathways were examined. Similar studies were done in HL and U937 60 human leukemia cells. Coverage of Jurkat cells to GSE triggered time and dose dependent increase in apoptosis and caspase activation, events linked to the increase in Cip1/p21 protein level. Moreover, therapy of Jurkat cells with GSE led to marked increase in quantities of phospho JNK. However, disruption of the JNK pathway by medicinal chemical or genetic approaches exhibited important protection against GSE mediated lethality in Jurkat cells. Caused by the present study confirmed that GSE induces apoptosis in Jurkat cells through a process that natural compound library involves sustained JNK activation and Cip1/p21 up-regulation, culminating in caspase activation. Keywords Apoptosis, Leukemia, Grape-seed extract, JNK, Cip1/p21 The hematological malignancies constitute a group of cancers that arise from malignant transformation of varied cells derived from peripheral blood, lymphatic system, and bone marrow. These disorders include the acute and chronic leukemias, Hodgkins infection, the non Hodgkin lymphomas and multiple myeloma. The heterogeneity observed in this assortment of cancers shows the difficulty of the standard hematopoietic and immune systems. Established causes of leukemia include occupational experience of ionizing radiation, specific drugs used in the treatment of cancer, and some substances used largely in professional settings. Because of a rise in the mortality and morbidity of human leukemia recently, get a handle on of human leukemia through chemoprevention or intervention is highly desirable. Epidemiologic studies have indicated that use of a fresh fruit and vegetable-based diet reduces the risk of numerous cancers.