Chemotherapy's reduced effect on the chance of mortality in older breasts cancer patients could possibly be because of several factors: tumors being much less sensitive to chemotherapy, a reduction in dosage as the body gets weaker with age group or chemotherapy killing healthy cells in addition to malignancy cells, said Xianglin Du, M.D., Ph.D., lead writer and professor in the Division of Epidemiology, Individual Environmental and Genetics Sciences in UTHealth School of Open public Health. Related StoriesStudy shows uncommon HER2 missense mutations do not spread breasts cancer on the ownCornell biomedical engineers develop 'super natural killer cells' to destroy tumor cells in lymph nodesNew RNA check of blood platelets may be used to identify location of cancerDu and fellow researchers examined data from Surveillance, Epidemiology and End Results , a Medicare-linked data source.The rig is reportedly burning, but it has been reported by ABC Information that the rig wasn’t drilling for essential oil during the explosion. No given information explaining the cause of the explosion has yet surfaced. One workers was evidently hurt in the explosion. While it may be too early to know for sure, there are up to now no reports of essential oil being spilled in to the Gulf from the rig. This second explosion normally brings to brain the safety and reliability of offshore drilling platforms. In many ways the Deepwater Horizon incident was referred to as a fluke, a rare event that would likely not be soon repeated any moment.