Skin cancer, including both melanoma and non-melanoma, is the most common type of malignancy, which causes substantial morbidities and mortalities. Although the significant increase in the understanding of skin cancer formation and the development of novel personalized drug regimens have occurred, new treatment options are always of need. The use of natural compounds to alleviate the symptoms or even to prevent and treat cancer has long been proposed. Specifically, the use of marine-based organisms as a source for cancer cure and remedy is being evaluated extensively. The objective of the current study was to assess the ability of the green microalgae Dunaliella salina, the Dead-Sea-derived Haloferax volcanii, and its combinations to treat skin cancer in vitro. The results demonstrate the Dunaliella and Haloferax can reduce sarcoma and basal cell carcinoma cellular growth. Importantly, their combination acts synergistically in a caspase-3 independent manner. Moreover, a synergistic action was found when evaluated sarcoma cell invasion rate, which was completely blocked at pharmacological relevant amounts of the compounds. Collectively, the results demonstrate that the combination of Haloferax volcanii and Dunaliella salina can be used as a new treatment for skin cancer. The specific mechanism of action and further in vivo validation studies are of need.
We examined 70 external jugular veins from 35 cadavers. In six veins we observed a septum, 6-25 mm long, which completely divided the lumen of the vein. The septum, which has not been previously described, was located approximately 5 cm superior to the vein's termination into the subclavian vein. Histologically, the septum is composed of tunica intima and tunica media in contrast to venous valves which are composed of tunica intima only.
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