PRESS-NEWS.org - Press Release Distribution
PRESS RELEASES DISTRIBUTION

Vitamin E may lower liver cancer risk

2012-07-18
(Press-News.org) High consumption of vitamin E either from diet or vitamin supplements may lower the risk of liver cancer, according to a study published July 17 in the Journal of the National Cancer Institute.

Liver cancer is the third most common cause of cancer mortality in the world, the fifth most common cancer found in men and the seventh most common in women. Approximately 85% of liver cancers occur in developing nations, with 54% in China alone. Some epidemiological studies have been done to examine the relationship between vitamin E intake and liver cancer; however, the results have been inconsistent.

To determine the relationship between vitamin E intake and liver cancer risk, Wei Zhang, MD, MPH., of the Shanghai Cancer Institute, Renji Hospital, Shanghai Jiaotong University School of Medicine and colleagues analyzed data from a total of 132,837 individuals in China who were enrolled in the Shanghai Women's Health Study (SWHS) from 1997-2000 or the Shanghai Men's Health Study (SMHS) from 2002-2006, two population-based cohort studies jointly conducted by the Shanghai Cancer Institute and Vanderbilt University. Using validated food-frequency questionnaires, the researchers conducted in-person interviews to gather data on study participants' dietary habits. They compared liver cancer risk among participants who had high intake of vitamin E with those with low intake.

The analysis included 267 liver cancer patients (118 women and 149 men) who were diagnosed between 2 years after study enrollment and an average of 10.9 (SWHS) or 5.5 (SMHS) years of follow-up. Vitamin E intake from diet and vitamin E supplement use were both associated with a lower risk of liver cancer. This association was consistent among participants with and without self-reported liver disease or a family history of liver cancer. "We found a clear, inverse dose-response relation between vitamin E intake and liver cancer risk," the authors write, noting a small difference between men and women in the risk estimate, which is likely attributable to fewer liver cancer cases having occurred among SMHS participants due to the shorter follow-up period. Overall, the take home message is that, "high intake of vitamin E either from diet or supplements was related to lower risk of liver cancer in middle-aged or older people from China."

INFORMATION:

Contact Info:

Xiao-Ou Shu, MD, PhD, Xiao-Ou.Shu@Vanderbilt.edu

Yong-Bing Xiang, MD, MPH, ybxiang@shsci.org

END



ELSE PRESS RELEASES FROM THIS DATE:

Hospitals' stroke-care rankings change markedly when stroke severity is considered

2012-07-18
As part of the Affordable Care Act, hospitals and medical centers are required to report their quality-of-care and risk-standardized outcomes for stroke and other common medical conditions. But reporting models for mortality that don't consider stroke severity may unfairly skew these results. Now, A UCLA-led national study has found that when reporting on 30-day mortality rates for Medicare beneficiaries hospitalized with acute stroke, using a model that adjusts for stroke severity completely alters performance outcomes and rankings for many hospitals. The new findings, ...

Including stroke severity in risk models associated with improved prediction of risk of death

2012-07-18
CHICAGO – Adding stroke severity to a hospital 30-day mortality model based on claims data for Medicare beneficiaries with acute ischemic stroke was associated with improvement in predicting the risk of death at 30 days and changes in performance ranking regarding mortality for a considerable proportion of hospitals, according to a study in the July 18 issue of JAMA. "Increasing attention has been given to defining the quality and value of health care through reporting of process and outcome measures. National quality profiling efforts have begun to report hospital-level ...

Treating chronic hepatitis C with milk thistle extract does not appear beneficial

2012-07-18
CHICAGO – Use of the botanical product silymarin, an extract of milk thistle that is commonly used by some patients with chronic liver disease, did not provide greater benefit than placebo for patients with treatment-resistant chronic hepatitis C virus (HCV) infection, according to a study in the July 18 issue of JAMA. Chronic hepatitis C virus infection affects almost 3 percent of the global population and may lead to cirrhosis, liver failure, and liver cancer. A large proportion of patients do not respond to certain treatments for this infection, and many others cannot ...

Stress fuels breast cancer metastasis to bone

2012-07-18
Stress can promote breast cancer cell colonization of bone, Vanderbilt Center for Bone Biology investigators have discovered. The studies, reported July 17 in PLoS Biology, demonstrate in mice that activation of the sympathetic nervous system – the "fight-or-flight" response to stress – primes the bone environment for breast cancer cell metastasis. The researchers were able to prevent breast cancer cell lesions in bone using propranolol, a cardiovascular medicine that inhibits sympathetic nervous system signals. Metastasis – the spread of cancer cells to distant organs, ...

Study examines variation, factors involved with patient-sharing networks among physicians in US

2012-07-18
CHICAGO – Physicians tend to share patients with colleagues who have similar personal traits and practice styles, and there is substantial variation in physician network characteristics across geographic areas, according to a study in the July 18 issue of JAMA. Physicians are embedded in informal networks that result from their sharing of patients, information, and behaviors. "These informal information-sharing networks of physicians differ from formal organizational structures (such as a physician group associated with a health plan, hospital, or independent practice ...

Treatment of multiple sclerosis with interferon beta not linked with less progression of disability

2012-07-18
CHICAGO – Among patients with relapsing-remitting multiple sclerosis (MS), treatment with the widely-prescribed drug to treat MS, interferon beta, was not associated with less progression of disability, according to a study in the July 18 issue of JAMA. "A key feature of MS is clinical progression of the disease over time manifested by the accumulation of disability. Interferon beta drugs are the most widely prescribed disease-modifying drugs approved by the U.S. Food and Drug Administration for the treatment of relapsing-onset MS, the most common MS disease course," ...

Physicians' focus on risks for stroke and dementia saved lives, money

2012-07-18
Fewer people died or needed expensive long-term care when their physicians focused on the top risk factors for stroke and dementia, according to research reported in the Journal of the American Heart Association (JAHA). dementia The primary care doctors in the German study focused on high blood pressure, smoking, high cholesterol, diabetes, irregular heartbeat (atrial fibrillation) and depression. The researchers found that during a five-year period, the need for long-term care was cut 10 percent in women and 9.6 percent in men. Based on data collected in a comparison ...

Mammography screening shows limited effect on breast cancer mortality in Sweden

2012-07-18
Breast cancer mortality statistics in Sweden are consistent with studies that have reported that screening has limited or no impact on breast cancer mortality among women aged 40-69, according to a study published July 17 in the Journal of The National Cancer Institute. Since 1974, Swedish women aged 40-69 have increasingly been offered mammography screening, with nationwide coverage peaking in 1997. Researchers set out to determine if mortality trends would be reflected accordingly. In order to determine this, Philippe Autier, M.D., of the International Prevention ...

Penn expert addresses ethical implications of testing for Alzheimer's disease risk

2012-07-18
VANCOUVER – Diagnostic tests are increasingly capable of identifying plaques and tangles present in Alzheimer's disease, yet the disease remains untreatable. Questions remain about how these tests can be used in research studies examining potential interventions to treat and prevent Alzheimer's disease. Experts from the Perelman School of Medicine at the University of Pennsylvania will today participate in a panel at the Alzheimer's Association International Conference 2012 (AAIC 2012) discussing ways to ethically disclose and provide information about test results to asymptomatic ...

Modified tPA could be effective stroke treatment without bleeding risk

2012-07-18
Even when its clot-dissolving powers are removed, the stroke drug tPA can still protect brain cells from the loss of oxygen and glucose induced by a stroke, researchers have discovered. The finding suggests that a modified version of tPA could provide benefits to patients who have experienced a stroke, without increasing the risk of bleeding. The results will be published in the Journal of Neuroscience. "We may have been giving the right medication, for the wrong reason," says senior author Manuel Yepes, MD, associate professor of neurology at Emory University School ...

LAST 30 PRESS RELEASES:

Less intensive works best for agricultural soil

Arctic rivers project receives “national champion” designation from frontiers foundation

Computational biology paves the way for new ALS tests

Study offers new hope for babies born with opioid withdrawal syndrome

UT, Volkswagen Group of America celebrate research partnership

New Medicare program could dramatically improve affordability for cancer drugs – if patients enroll

Are ‘zombie’ skin cells harmful or helpful? The answer may be in their shapes

University of Cincinnati Cancer Center presents research at AACR 2025

Head and neck, breast, lung and survivorship studies headline Dana-Farber research at AACR Annual Meeting 2025

AACR: Researchers share promising results from MD Anderson clinical trials

New research explains why our waistlines expand in middle age

Advancements in muon detection: Taishan Antineutrino Observatory's innovative top veto tracker

Chips off the old block

Microvascular decompression combined with nerve combing for atypical trigeminal neuralgia

Cutting the complexity from digital carpentry

Lung immune cell type “quietly” controls inflammation in COVID-19

Fiscal impact of expanded Medicare coverage for GLP-1 receptor agonists to treat obesity

State and sociodemographic trends in US cigarette smoking with future projections

Young adults drive historic decline in smoking

NFCR congratulates Dr. Robert C. Bast, Jr. on receiving the AACR-Daniel D. Von Hoff Award for Outstanding Contributions to Education and Training in Cancer Research

Chimpanzee stem cells offer new insights into early embryonic development

This injected protein-like polymer helps tissues heal after a heart attack

FlexTech inaugural issue launches, pioneering interdisciplinary innovation in flexible technology

In Down syndrome mice, 40Hz light and sound improve cognition, neurogenesis, connectivity

Methyl eugenol: potential to inhibit oxidative stress, address related diseases, and its toxicological effects

A vascularized multilayer chip reveals shear stress-induced angiogenesis in diverse fluid conditions

AI helps unravel a cause of Alzheimer's disease and identify a therapeutic candidate

Coalition of Autism Scientists critiques US Department of Health and Human Services Autism Research Initiative

Structure dictates effectiveness, safety in nanomedicine

Mission accomplished for the “T2T” Hong Kong Bauhinia Genome Project

[Press-News.org] Vitamin E may lower liver cancer risk