Archive for the 'Chronic Heart Failure' Category

Jan 20 2009

Turmeric Component Protects Against Toxic Compound Consumed in Many Meals

Curcumin, the pigment that gives turmeric its yellow color, may reduce the damaging effects of acrylamide (AA), a potential carcinogen created when starchy foods are baked, roasted, fried or toasted.

Swedish scientists first reported on acrylamide’s widespread presence in the food supply in 2002, when they found unexpectedly high levels of acrylamide in carbohydrate-rich foods. This was of concern since the toxin causes cancer in laboratory rats. Other scientists have found that acrylamide causes DNA to fragment, increases formation of damaging reactive oxygen species (ROS) and triggers the death of liver cells. It is also genotoxic, meaning that it damages a cell’s genetic material affecting the cell’s integrity. Genotoxic substances have the potential to be carcinogens and can cause genetic mutations that lead to the development of tumors.

Due to its antioxidant abilities, researchers studied curcumin’s effects on human liver cells exposed to acrylamide. They found that curcumin significantly reduced the production of reactive oxygen species that occurred in acrylamide-treated cells. Curcumin also inhibited the acrylamide-induced DNA fragments and significantly reduced the acrylamide-triggered cell death, indicating curcumin could ameliorate acrylamide’s known genotoxicity.

The researchers believe that curcumin’s effects are likely due to its antioxidant abilities. They concluded, “Consumption of curcumin may be a plausible way to prevent AA-mediated genotoxicity.”

Reference:

Cao J, Liu Y, Jia L, Jiang LP, Geng CY, Yao XF, Kong Y, Jiang BN, Zhong LF. Curcumin Attenuates Acrylamide-Induced Cytotoxicity and Genotoxicity in HepG2 Cells by ROS Scavenging. J Agric Food Chem. 2008 Nov 14. Published Online Ahead of Print.

No responses yet

Jan 20 2009

Grape Seed Extract May Stop Bacteria Involved in Bad Breath and Gum Disease

A new study suggests that grape seed extract may inhibit the bacteria known to cause bad breath and gum disease.

Periodontitis is a gum disease that destroys the soft tissue and bone supporting the teeth. Thirty to 50 percent of the US population suffers from the condition, which is thought to be the second most common disease worldwide.

In an in vitro study, researchers investigated whether grape seed extract could inhibit Porphyromonas gingivalis and Fusobacterium nucleatum, bacteria responsible for both periodontitis and bad breath. The researchers tested the effects of grape seed extract (97 percent polyphenols) on these two anaerobic bacteria.

The results indicated that grape seed extract exhibited antibacterial activity against the two strains. Moreover, the grape seed extract could penetrate the biofilm that surrounded the bacteria. Biofilms serve to protect bacteria against antimicrobial agents and dental plaque’s biofilm is particularly complex.

Grape seed extract also had an antioxidant activity higher than vitamins C and E, according to measures taken with the Trolox equivalent antioxidant capacity (TEAC) test. This was important to the findings of the study because gum disease originates due to the bacteria’s presence and its biofilm protection, but the disease progresses because of an excess release of reactive oxygen species that trigger the inflammatory process. Grape seed extract’s antioxidant abilities may quench the free radicals implicated in the progression of gum disease.

The researchers concluded, “These findings indicated that GSE could be used in oral hygiene for the prevention of periodontitis.”

Reference:

Furiga A, Lonvaud-Funel A, Badet C. In vitro study of antioxidant capacity and antibacterial activity on oral anaerobes of a grape seed extract. Food Chemistry. 15 April 2009;113( 4);1037-1040. Available online prior to April publication date.

No responses yet

Jan 20 2009

Low Antioxidant Levels Linked to Asymptomatic Coronary Artery Disease

Low plasma concentrations of the antioxidant vitamins A and E and the carotenoids beta carotene and lycopene are significantly associated with atherosclerosis of the carotid arteries, a new study has found.

Atherosclerosis remains clinically mute for a long time and frequently manifests itself with an acute cardiovascular event. The possibility of detecting this disease in a subclinical phase and reducing or reversing its progression is therefore an issue of relevance.

Researchers studied 220 consecutive, asymptomatic participants and examined their carotid arteries by ultrasound to determine the thickness of the arteries and whether the arteries had developed pre-atherosclerotic lesions. A medical history also was taken, a physical examination was performed and blood samples were analyzed for concentrations of antioxidant vitamins and carotenoids.

The scientists found that low concentrations of vitamin A, vitamin E, lycopene and beta carotene were significantly associated with carotid atherosclerosis as measured by increased thickness of the carotid arteries. In addition, marginally higher body mass index and low levels of high-density lipoprotein cholesterol were also associated with carotid atherosclerosis. Other factors considered in the study (total cholesterol, low-density lipoprotein cholesterol, triglycerides and C-reactive protein) were not significantly associated with carotid atherosclerosis.

According to the researchers, “Low plasma concentrations of antioxidant vitamins (vitamins A, E and beta-carotene) and lycopene were associated with early carotid atherosclerotic lesions as measured by carotid intima-media thickness (CIMT). Regular intake of foods rich in lycopene and antioxidant vitamins may slow the progression of atherosclerosis.”

Reference:

Riccioni G, Bucciarelli T, D’Orazio N, Palumbo N, di Ilio E, Corradi F, Pennelli A, Bazzano LA. Plasma Antioxidants and Asymptomatic Carotid Atherosclerotic Disease. Ann Nutr Metab. 2008 Oct 21;53(2):86-90.

No responses yet

Jan 20 2009

The Latest Research on Fatigue, Heart Health, Cognitive Function and More

Omega-3s Linked to Prostate Health

Men who increase their intake of omega-3-rich fish have a greater chance of surviving prostate cancer, according to a new study.

Researchers studied 20,167 men who were participating in the Physician’s Health Study. The subjects were free of cancer in 1983, when the study began. During follow-up, 2,161 men were diagnosed with prostate cancer and 230 died of the disease.

Although intake of omega-3-rich fish was unrelated to prostate cancer incidence, it was linked to survival from the disease. Among the men diagnosed with prostate cancer, those consuming fish five or more times per week had a 48 percent lower risk of prostate cancer death than did men consuming fish less than once weekly.

In this study the scientists found no link between fish consumption and a reduced incidence of prostate cancer, but the same researchers conducted an earlier study that found higher intake of the omega-3 fatty acids DHA (docosahexaenoic acid) and EPA (eicosapentaenoic acid) may reduce the risk of developing prostate cancer by 41 percent.

Reference:

Chavarro JE, Stampfer MJ, Hall MN, Sesso HD, Ma J. A 22-y prospective study of fish intake in relation to prostate cancer incidence and mortality. Am J Clin Nutr. 2008 Nov;88(5):1297-303.

No responses yet

Jun 13 2008

Anabolic Hormone Depletion is Common in Men with Chronic Heart Failure

In a study involving 208 men with chronic heart failure (median age: 63 years) and 366 healthy controls, anabolic hormone depletion was found to be quite prevalent among men with chronic heart failure, and was found to be associated with poor prognostic consequences. Immunoassays were used to measure levels of various hormones in subjects. Results found that men of all ages with chronic heart failure were found to have deficiencies in DHEAS, circulating total testosterone (TT), estimated free testosterone (eFT), and insulin-like growth factor-1 (IGF-1). Furthermore, DHEAS, TT, and eFT were found to be inversely associated to New York Heart Association class. After adjusting for established prognostic factors, all four hormones were found to be prognostic markers as well. A positive association was found between DHEAS and left ventricular ejection fraction. Men with chronic heart failure but normal anabolic hormone levels had the best 3-year survival rates compared to those having deficiencies in one, two, or all three anabolic endocrine axes (74%, 55%, and 27%, respectively). These results suggest that men with chronic heart failure who have a deficiency in more than one anabolic hormone may have an increased risk of mortality.

Reference: “Anabolic deficiency in men with chronic heart failure: prevalence and detrimental impact on survival,” Jankowska EA, Biel B, et al, Circulation, 2006; 114(17): 1829-37. (Address: Cardiology Department, Military Hospital, ul. Weigla 5, 50-981 Wroclaw, Poland. E-mail: Ewa.Jankowska@antro.pan.wroc.pl ).

No responses yet

Supply of hospital pharmacies operating externally due to cost savings will continue to grow all over the next years. Even today, 90% of all pharmacies pribolnichnyh organized in cooperation provisioning This shows that the Canadian pharmacy online has become not take seriously the business partner compared with the pharmaceutical industry. However, the development of recent years shows that the industry sees its price registration stronger with the number of sales, thus strengthening the competitiveness of supplying hospital pharmacies in the long term due to more efficient logistics and a lot of sales.