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  Background & objectives : Helicobacter pylori is considered as an important factor in chronic gastritis , peptic and duodenal ulcer, also probably in adenocarcinoma of distal stomach. H. Pylori infection can be led to chronic ulcers and ultimately to atrophy and stomach metaplasia. H. pylori shows an increasing resistance to the current antibiotics. For this reason the present research in which the anti bacterial effects of four food additive plants against ten strains of H. Pylori were investigated.

  Methods : The plants turmeric, ginger, clove and cardamom were selected to act against ten strains of H. Pylori. The effect of ether, ethanol and water extracts on H. Pylori specimens isolated from the patients was studied, using the agar diffusion method .

 Results: Considered water extracts for their antibacterial effects, turmeric had the most anti H. Pylori efficacy (mean of inhibitory growth zone diameter 21.5 mm). Ginger, clove and cardamom were respectively placed thereafter. Among ethanol extracts, ginger with diameter mean of 19.7 mm showed the most efficient effect as compare with turmeric and clove. Ether extracts of the mentioned plants had anti H. Pylori effects (Mean of inhibitory growth zone diameter were 19, 13, 11.1 and 10.5 mm respectively

 Conclusions: Water, ethanol and ether extracts of turmeric had higher anti H. Pylori activity. Recognition of the effective fraction 0f this plant as an efficient anti H. Pylori is further step to be investigated.

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Background & Objectives: Breast cancer is one of the most common cancers of women in the world. Apoptotic pathway is one of the most important pathways to deal with cell damage, especially cancer, which is usually blocked in this disease. One of the main enzymes to set up this pathway is JNK (1,2,3α,3β), which is activated by cellular stress.
Methods: In this study, breast cancer cells with the origin of MCF-7 cell lines were cultured in RPMI medium using 10%fetal bovine serum.Then , they were subjected to heat (42 & 45 ^̊ C) for 1,2,4,6 and 8 hours under X-ray and γ-ray radiations for 1,2,3 and 4 hours as well. Their viability and enzyme level were evaluated by MTT and ELISA tests, respectively.
Results: The obtained results showed that abiotic stresses including heat and radiations resulted in JNK level increase and recovery of apoptosis pathway function in breast cancer cells. In addition, they led to decreased of cell viability and increase of JNK level depending on the duration and kind of stress.
Conclusion: The results in this study showed abiotic stress directly affected the JNK level. Increase of this enzyme in the cell resulted in activity of JNK apoptosis pathway. We hope to find methods to help to cancer treatment by means of more studies on JNK enzyme and relevant pathways.