Showing posts with label angiotensin. Show all posts
Showing posts with label angiotensin. Show all posts

Thursday 22 August 2013

Popular Drugs To Lower Blood Pressure Increases The Risk Of Cancer

Popular Drugs To Lower Blood Pressure Increases The Risk Of Cancer.
Use of a trendy elegance of drugs for on a trip blood pressure and sensitivity failure is associated with a slight boost in cancer risk, a strange review of data finds. The drugs are known as angiotensin-receptor blockers (ARBs) and number medicines such as telmisartan (Micardis), losartan (Cozaar, Hyzaar), valsartan (Diovan) and candesartan (Atacand). Overall, the researchers looked at trials involving over 223000 patients a rxlist box. When they concentrated on five trials involving over 60000 patients, in which cancer was a pre-specified endpoint, "patients assigned to these ARBs had about a 10 percent extend in cancer" apropos to those not on the medications, said Dr Ilke Sipahi, underling professor of nostrum at Case Western Reserve University, persuade maker of a discharge in the June 14 online version of The Lancet Oncology.

The quantity of cancer in people taking an ARB was 7,2 percent, compared to a 6 percent prevalence in those taking a placebo, the study found. The increase in solid tumors was concentrated in lung cancers, whose degree was 25 percent higher in those alluring an ARB, he said. Despite the rise in risk, the researchers eminent that there was only a slight increase in deaths from cancer among ARB users - 1,8 percent for those attractive ARBs, 1,6 percent for those fascinating placebo, a difference that was not statistically significant.

Most of the the crowd in the trials - 85,7 percent - were engaging the ARB telmisartan (Micardis), while the remainder took other ARBs such as losartan, valsartan and candesartan. The drugs manage by blocking room receptors for angiotensin II, a hormone that plays an notable role in regulating blood pressure. Another breeding of drugs that are used for the same purposes are the ACE inhibitors, which prevent the shape of the active form of angiotensin. "Experimental studies using cancer cubicle lines and animal models have implicated the angiotensin scheme in the proliferation of cells and also tumors," Sipahi said. "Evidence from gross studies show that blockage of angiotensin receptors can stimulate tumor broadening by promoting new blood vessel formation in tumors".

But the deposition that ARBs can play a real role in cancer lump remains unclear, he said, and these findings only show an association, not cause-and-effect. "Before we bound to that conclusion, I feel we need more analysis," Sipahi said.