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Study indicates cancer preventive effect for statins
May 06, 2009The commonly used prescription statin drugs may have a protective effect in the prevention of liver cancer and lead to a reduction in the need for gallbladder removals, according to two studies published in Gastroenterology. As millions of Americans use statins each day to help lower their cholesterol and risk of heart disease, researchers are learning of the beneficial effects these drugs may have on gastrointestinal disorders. Gastroenterology is the official journal of the American Gastroenterological Association (AGA) Institute.
Statins Benefit Diabetics at High Risk of HCC
Statin use is associated with a significant reduction in the risk of hepatocellular carcinoma (HCC), or liver cancer, among patients with diabetes, according to a new study in Gastroenterology.
"Our study provides the first indication of a cancer preventive effect for statins specific to HCC," said Hashem B. El-Serag, MD, MPH, of the Baylor College of Medicine and lead author of the study. "While these findings need to be confirmed in future studies, we are hopeful that further research continues to show the beneficial effect of statins for liver cancer prevention in patients with diabetes."
HCC is a highly fatal malignancy that has been increasing in several regions of the world, including the U.S. Experimental as well as indirect human data suggests that statins exert a beneficial action, reducing the progression of HCC.
Researchers undertook an epidemiological study in a large cohort of diabetics, whose risk of HCC was higher than average, to characterize the relationship between statin use and HCC and other liver disease. The team examined 1,303 cases and 5,212 controls; the mean age was 72 years. Ninety-nine percent were men and 13 percent were African Americans. A significantly smaller proportion of cases (34.3 percent) had at least one filled prescription for statins than controls (53.1 percent).
The research team found a significant inverse association between having statin prescriptions filled and the risk of developing HCC. There was a trend toward stronger risk reduction with longer and more frequent statin prescriptions. The risk reduction observed with statins ranged between 25 percent and 40 percent. Reduced HCC risk was similar, whether the prescriptions were for simvastatin or any other statin dispensed.
Statins May Reduce Risk of Gallbladder Removal Surgery
The use of statins appears to reduce the risk of cholecystectomy, surgical removal of the gallbladder, in women, according to a new study in Gastroenterology.
Gallstone disease is a common abdominal condition in developed countries and is a major cause of digestive disease leading to hospital admissions. In the U.S., more than 800,000 cholecystectomies are performed each year.
Researchers examined the relationship between statin use and the risk of cholecystectomy in a cohort of U.S. women participating in the prospective Nurses' Health Study. Participants biennially reported their health history, including incidence of gallstone disease and whether they had undergone cholecystectomy.
Researchers conducted a retrospective analysis of statin use through data collected in 2000 to define use from 1994 forward, and a prospective analysis for general lipid-lowering drugs from 1994 to 2004. In the statin analysis, the researchers ascertained 2,479 cases of cholecystectomy during 305,197 person-years of follow-up. The multivariate relative risk for current statin users, compared with nonusers, was 18 percent. In the analysis of general cholesterol-lowering drugs, researchers ascertained 3,420 cases of cholecystectomy during 511,411 person-years of follow-up. Compared with nonusers, the multivariate relative risk for current users of general cholesterol-lowering drugs, mostly statins in this cohort, was 12 percent. Among diabetic women, duration of current statin use was correlated with risk of cholecystectomy. Compared with statin nonuse, the relative risk for current statin use of two or more years was 75 percent.
"Further study, particularly among diabetics, is warranted to evaluate the associations of longer durations of statin use and specific types of statins with risk," said Chung-Jyi Tsai, MD, of the University of Kentucky Medical Center and lead author of the study. "Our results should have implications for additional clinical, epidemiological and mechanistic research."
American Gastroenterological Association
"Our study provides the first indication of a cancer preventive effect for statins specific to HCC," said Hashem B. El-Serag, MD, MPH, of the Baylor College of Medicine and lead author of the study. "While these findings need to be confirmed in future studies, we are hopeful that further research continues to show the beneficial effect of statins for liver cancer prevention in patients with diabetes."
HCC is a highly fatal malignancy that has been increasing in several regions of the world, including the U.S. Experimental as well as indirect human data suggests that statins exert a beneficial action, reducing the progression of HCC.
Researchers undertook an epidemiological study in a large cohort of diabetics, whose risk of HCC was higher than average, to characterize the relationship between statin use and HCC and other liver disease. The team examined 1,303 cases and 5,212 controls; the mean age was 72 years. Ninety-nine percent were men and 13 percent were African Americans. A significantly smaller proportion of cases (34.3 percent) had at least one filled prescription for statins than controls (53.1 percent).
The research team found a significant inverse association between having statin prescriptions filled and the risk of developing HCC. There was a trend toward stronger risk reduction with longer and more frequent statin prescriptions. The risk reduction observed with statins ranged between 25 percent and 40 percent. Reduced HCC risk was similar, whether the prescriptions were for simvastatin or any other statin dispensed.
Statins May Reduce Risk of Gallbladder Removal Surgery
The use of statins appears to reduce the risk of cholecystectomy, surgical removal of the gallbladder, in women, according to a new study in Gastroenterology.
Gallstone disease is a common abdominal condition in developed countries and is a major cause of digestive disease leading to hospital admissions. In the U.S., more than 800,000 cholecystectomies are performed each year.
Researchers examined the relationship between statin use and the risk of cholecystectomy in a cohort of U.S. women participating in the prospective Nurses' Health Study. Participants biennially reported their health history, including incidence of gallstone disease and whether they had undergone cholecystectomy.
Researchers conducted a retrospective analysis of statin use through data collected in 2000 to define use from 1994 forward, and a prospective analysis for general lipid-lowering drugs from 1994 to 2004. In the statin analysis, the researchers ascertained 2,479 cases of cholecystectomy during 305,197 person-years of follow-up. The multivariate relative risk for current statin users, compared with nonusers, was 18 percent. In the analysis of general cholesterol-lowering drugs, researchers ascertained 3,420 cases of cholecystectomy during 511,411 person-years of follow-up. Compared with nonusers, the multivariate relative risk for current users of general cholesterol-lowering drugs, mostly statins in this cohort, was 12 percent. Among diabetic women, duration of current statin use was correlated with risk of cholecystectomy. Compared with statin nonuse, the relative risk for current statin use of two or more years was 75 percent.
"Further study, particularly among diabetics, is warranted to evaluate the associations of longer durations of statin use and specific types of statins with risk," said Chung-Jyi Tsai, MD, of the University of Kentucky Medical Center and lead author of the study. "Our results should have implications for additional clinical, epidemiological and mechanistic research."
American Gastroenterological Association
Statin Current Events and Statin News RSSStatins show dramatic drug and cell dependent effects in the brain
Besides their tremendous value in treating high cholesterol and lowering the risk of heart disease, statins have also been reported to potentially lower the risks of other diseases, such as dementia.
Adding ezetimibe to atorvastatin improves lipid control
Adding ezetimibe to atorvastatin significantly boosted the attainment of lipid targets as specified by both Canadian and European guidelines in elderly patients aged 65 and older and the combination produced superior results than simply increasing the dose of atorvastatin alone.
Elevated arginase levels contribute to vascular eye disease such as diabetic retinopathy
Elevated levels of the enzyme arginase contribute to vascular eye damage and Medical College of Georgia researchers say therapies to normalize its levels could halt progression of potentially blinding diseases such as diabetic retinopathy.
New heart disease risk score outperforms existing test
An independent external validation of QRISK - a new score for predicting a person's risk of heart disease - has shown that it performs better than the existing test and should be recommended for use in the United Kingdom by the National Institute for Health and Clinical Excellence (NICE).
New heart disease risk score should be recommended in the UK, say experts
A new score for predicting a person's risk of heart disease performs better than the existing test and should be recommended for use in the United Kingdom by the National Institute for Health and Clinical Excellence (NICE).
New tool finds best heart disease and stroke treatments for patients with diabetes
Researchers from North Carolina State University and Mayo Clinic have developed a computer model that medical doctors can use to determine the best time to begin using statin therapy in diabetes patients to help prevent heart disease and stroke.
More patients across the world lowering 'bad' cholesterol
The percentage of patients lowering their elevated "bad" cholesterol to within target levels nearly doubled in the last decade, according to a multi-national survey reported in Circulation: Journal of the American Heart Association.
Statins can protect against Alzheimer's disease, according to new study
High cholesterol levels are considered to be a risk factor not only for cardiovascular disease including stroke, but also for the development of Alzheimer's disease.
Statins don't lower risk of pneumonia in elderly
Taking popular cholesterol-lowering statin drugs, such as Lipitor® (atorvastatin), does not lower the risk of pneumonia.
Cholesterol-lowering drugs may help prevent stroke recurrence
People who take cholesterol-lowering drugs called statins after a stroke may be less likely to have another stroke later.
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