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 170,190 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Obesity is a known risk factor for a number of diseases with serious mortality and morbidity implications. Thus, obesity is an economic burden to communities, since it reduces quality of life and leads to premature mortality; in addition, healthcare resources are used to manage obesity-related disease. It was estimated that in 1989, management of disease due to obesity (defined as body mass index greater than 30) cost A$395 million. This estimate covers the healthcare costs for the management of obesity, non-insulin-dependent diabetes mellitus (NIDDM), gallstones, hypertension, coronary heart disease (CHD), breast cancer (among postmenopausal women), and colon cancer. As this estimate excludes the costs of some disease attributable to obesity, it is an underestimate of the true costs. Nonetheless, the estimated cost of the management of obesity-related conditions represents 86% of the healthcare costs used for the management of alcohol-related diseases in Australia. Healthcare costs attributable to obesity have not yet been estimated for countries elsewhere in Asia and the Pacific. However, it is acknowledged that obesity is a major problem in the Pacific, with exceptionally high prevalence rates and concomitant high rates of diseases for which obesity is a major risk factor, particularly NIDDM and CHD. It would, therefore, be useful to explore the cost of disease attributable to obesity in healthcare systems in these communities, and the potential for preventive programmes to reduce these costs.
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PMID:The cost of obesity: the Australian perspective. 1014 49

Induced hypertension with angiotensin II (AT-II) and the inhibition of kininase with enalapril maleate may increase the tumor targeting of radiolabeled monoclonal antibodies (MAbs). We previously found that short-period infusion of 2.0 microg/kg/min of AT-II enhanced tumor targeting of MAb without an impact on normal tissue distribution. In this study, we aimed to optimize the manipulation with these agents, and examine the possible mechanism of their effects on MAb distribution. Effect of the manipulation on tissue circulation was assessed in mice bearing colon cancer xenografts by 201Tl and 99mTc-human serum albumin (HSA) as markers of tissue blood flow and tissue blood volume and/or vascular permeability. A dose finding study of enalapril ranging from 3 to 300 microg showed that 30 microg of enalapril in combination with AT-II infusion produced the best improvement in tumor uptake of 99Tc-HSA without altering 201Tl distribution, suggesting that the increase of vascular permeability was caused by enalapril. AT-II infusion for longer than 1 h affected renal blood flow and caused subcutaneous edema. Tumor uptake of (111)In-A7, a murine IgG1, was 1.62-fold improved 72 h postinjection (P < 0.001) and intratumoral distribution became uniform with 2.0 microg/kg/min of AT-II for 1 h and 30 microg of enalapril. Vessels in manipulated tumors were distended even 48 h after the cessation of AT-II infusion. In conclusion, it was suggested that persistent distension of tumor vessels and the increase of diffusive extravasation of MAb caused by short-period-induced hypertension and inhibition of bradykinin degradation produced favorable effect for the MAb distribution in tumors.
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PMID:Persistent distension and enhanced diffusive extravasation of tumor vessels improved uniform tumor targeting of radioimmunoconjugate in mice administered with angiotensin II and kininase inhibitor. 1036 36

Results associating diet with chronic disease in a cohort of 34192 California Seventh-day Adventists are summarized. Most Seventh-day Adventists do not smoke cigarettes or drink alcohol, and there is a wide range of dietary exposures within the population. About 50% of those studied ate meat products <1 time/wk or not at all, and vegetarians consumed more tomatoes, legumes, nuts, and fruit, but less coffee, doughnuts, and eggs than did nonvegetarians. Multivariate analyses showed significant associations between beef consumption and fatal ischemic heart disease (IHD) in men [relative risk (RR) = 2.31 for subjects who ate beef > or =3 times/wk compared with vegetarians], significant protective associations between nut consumption and fatal and nonfatal IHD in both sexes (RR approximately 0.5 for subjects who ate nuts > or =5 times/wk compared with those who ate nuts <1 time/wk), and reduced risk of IHD in subjects preferring whole-grain to white bread. The lifetime risk of IHD was reduced by approximately 31% in those who consumed nuts frequently and by 37% in male vegetarians compared with nonvegetarians. Cancers of the colon and prostate were significantly more likely in nonvegetarians (RR of 1.88 and 1.54, respectively), and frequent beef consumers also had higher risk of bladder cancer. Intake of legumes was negatively associated with risk of colon cancer in nonvegetarians and risk of pancreatic cancer. Higher consumption of all fruit or dried fruit was associated with lower risks of lung, prostate, and pancreatic cancers. Cross-sectional data suggest vegetarian Seventh-day Adventists have lower risks of diabetes mellitus, hypertension, and arthritis than nonvegetarians. Thus, among Seventh-day Adventists, vegetarians are healthier than nonvegetarians but this cannot be ascribed only to the absence of meat.
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PMID:Associations between diet and cancer, ischemic heart disease, and all-cause mortality in non-Hispanic white California Seventh-day Adventists. 1047 27

Skeletal fragility at the end of the life span (osteoporosis) is a major source of morbidity and mortality. Adequate calcium intake from childhood to the end of the life span is critical for the formation and retention of a healthy skeleton. High intakes of calcium and vitamin D potentiate the bone loss prevention effects of hormone replacement therapy in postmenopausal women. Pregnancy and lactation are not risk factors for skeletal fragility, although lactation is associated with a transient loss of bone that cannot be prevented by calcium supplementation. Low calcium intake has been implicated in the development of hypertension, colon cancer, and premenstrual syndrome, and it is associated with low intakes of many other nutrients. Encouragement of increased consumption of calcium-rich foods has the potential to be a cost-effective strategy for reducing fracture incidence later in life and for increasing patients' dietary quality and overall health.
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PMID:The role of calcium in health and disease. 1060 43

It has been reported that allergy and other diseases may be related to colorectal cancer risk. The aim of this study was to perform a systematic analysis using information about medical histories specifically to see if there was any relation between allergies or other medical conditions and colorectal cancer risk. A multicentric case-control study was conducted in six Italian areas between 1992 and 1996 on 1225 incident cases of colon cancer, 728 cases of rectal cancer and 4154 controls comparable with cases according to sex and age group, admitted for acute conditions to the same network of hospitals where cases had been identified. Unconditional logistic regression models including terms for sex, age, study centre, years of education, body mass index, physical activity, smoking, history of colorectal cancer in first-degree relatives and energy intake were used to estimate the odds ratios (OR) of colon and rectal cancer according to history of allergy and other selected diseases. The OR for history of allergy was 0.88 (95% confidence interval, CI, 0.67-1.14) for colon and 0.64 (95% CI, 0.44-0.92) for rectal cancer, and the inverse association was stronger when allergy was diagnosed at age 35 years or more, or less than 10 years before the cancer diagnosis. No clear pattern emerged in strata of age and sex. History of other selected diseases, including hypertension and cholelithiasis, was not related to colon or rectal cancer risk, though there was a moderate increase in the risk of colon cancer (OR = 1.18, 95% CI, 0.66-2.14) in patients with a history of intestinal polyps. This study lends support to the hypothesis that allergic individuals may be at a lower risk of developing colorectal cancer.
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PMID:Allergy and other selected diseases and risk of colorectal cancer. 1067

The INSEE national surveys in 1980 and 1991, and the OBEPI study in 1997, allowed to study the prevalence of overweight and obesity in France, as well as its increase during these past years. The number of adult obese individuals remained stable between 1980 and 1991. The 1997 estimation suggests a moderate increase. By contrast, the number of obese children has increased between 1980 and 1991, whatever the level of study of the mother. Several diseases are strongly linked with obesity, such as hyperuricemia, hypertension, coronary heart disease, diabetes mellitus. Thus the declared prevalence of diabetes is 2% when BMI ranges from 18.5 to 25 kg/m2, and reaches 20% at a BMI > 34 kg/m2 with age ranging 40-70 years old. The presence of obesity during childhood is also correlated with an increased mortality, with an enhanced prevalence of coronary heart disease, hyperuricemia, colon cancer in men, and joint disease in women during adulthood. An increase in the prevalence of diabetes is expected in the near future: demography, as children born after the war will reach age of 55-75, the lowering of glycemic threshold for the diagnosis of diabetes, increased prevalence of obesity are the main explanations. Our health care system will need to evolve in order to deal with this increased number of patients, and measures have been recently set for that purpose.
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PMID:[Update on the epidemiology of obesity and type 2 diabetes in France]. 1094 46

The challenge for helping others enjoy a healthy and active life is to move the focus of instruction from physical fitness toward physical activity. Participation in regular physical activity offers a number of benefits including reduction of the risk of premature mortality. coronary heart disease, diabetes mellitus, hypertension, and colon cancer. The physical fitness of American children has not declined over the years even though teachers and parents often believe it to be true. A significant amount of fitness test performance is explained by heredity. Both the response to training and genetic limitations are limiting factors outside the control of individuals. Not all people can reach a high fitness level, but all can be physically active. The Children's Lifetime Physical Activity Model (C-LPAM) offers guidance in how to prescribe activity for youth. Guidelines suggest youngsters should receive at least 60 minutes or more of physical activity on a daily basis.
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PMID:Promoting physical activity for youth. 1110 Dec 67

Contemporary calcium intakes in the industrialized nations are substantially lower than those to which human physiology is adapted by evolution. As a result, compensatory adjustment is required lifelong. This adjustment consists of high levels of parathyroid activity, leading to parathyroid hyperplasia, high circulating levels of 1,25(OH)2D and high bone turnover. The capacity of these compensatory mechanisms to provide sufficient calcium to offset daily losses from the body declines with age; hence, increasingly the body tears down bone to access its calcium. As a result, the calcium requirement for skeletal maintenance is said to rise with age. Supplemented intakes to a total in the range of 32.5-42.5 mmol (1300-1700 mg)/day have been shown to arrest age-related bone loss and to reduce fracture risk in individuals 65 and older and intakes of 60 mmol (2400 mg), to restore the setting of the parathyroid glands to young adult values. Intakes at such levels also minimize the expression of other disorders such as colon cancer, hypertension and obesity, all of which, while multifactorial, have a calcium deficiency component. Milk, mainly because of constructive interactions among its several key nutrients, is probably the most nutritionally and cost effective way of meeting the calcium requirement in the elderly.
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PMID:Calcium needs of the elderly to reduce fracture risk. 1134 42

This study evaluates the risk of mortality in a cohort of Italian alcoholics resident in a rural area characterised by traditional drinking habits. Individual vital status of the 1,037 patients enrolled at the Centro Alcologico in Arezzo during the 1979-1997 period has been traced. Causes of death (ICD-IX) have been retrieved from the Regional Mortality Register. Standardised mortality ratios (SMR) have been computed according to gender and 5-year age group mortality rates of the general population resident in Tuscany during the same period. This cohort is representative of the traditional rural alcoholism of the Tuscany region based on wine consumption. Among the 9,190 person-years followed-up, 333 deaths have occurred, corresponding to approximately 2.6 fold the expected number of deaths (SMR males: 2.6; females: 2.4). In both genders, significantly high SMRs for liver cirrhosis, oesophagus and liver cancer are reported, while SMRs of cancers at all sites, oral and respiratory cancers, injuries as a whole, road and traffic accidents, and suicides are significantly elevated only among males. No relevant variation between expected and observed deaths for pancreatic diseases, colon cancer, female breast cancer, and, despite a large proportion of heavy smokers, for cardiovascular diseases (hypertension, cerebrovascular diseases, coronary heart diseases) has been recorded. This research confirms the high mortality among a cohort of Italian alcoholics. However, causes of death related with violence and trauma are proportionally less represented, in accordance with the social pattern of Mediterranean alcoholism. The absence of cardiovascular mortality risk in a wine-based cohort of alcoholics is an unexpected finding that requires to be further examined. Finally, to prevent smoking related deaths, alcohol addiction services should begin to introduce smoking cessation practices among treatment protocols.
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PMID:[Mortality in a cohort of alcoholics from Arezzo in 1979-1997]. 1141 4

Many genetic, environmental, behavioral, and cultural factors affect health. Diet is as vital as any of them for preventing disease and promoting well-being. We know that what we eat can lead to premature disability and mortality: to obesity, coronary heart disease, type 2 diabetes, degenerative arthritis, sleep apnea, and other illnesses. Now scientific evidence points to links between dietary patterns and illness. The study of these links is a new approach to understanding the role that diet plays in chronic disease. Initial studies include those on eating patterns and risk of colon cancer. More recently, researchers have investigated all-cause mortality and leading causes of chronic disease. Novel epidemiological approaches include factorial analysis to evaluate dietary patterns and cluster analysis to examine nutrient intake, gender, and weight status across food-pattern clusters. These methods work best within groups to identify major dietary patterns, but not necessarily ideal diets. They may also differ across population groups. The success of the Dietary Approaches to Stop Hypertension and Lyon Diet Heart studies supports the value of dietary pattern analysis. At the same time, the relative failure of single-nutrient studies underscores the need for new methodologies and directions in research.
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PMID:Treatment approaches: food first for weight management and health. 1170 45


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