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PubMed2001

Diet, serum fatty acids, and atopic diseases in childhood.

BACKGROUND: The reasons behind the reported increase in the occurrence of childhood atopic sensitization rates are unclear. We wanted to evaluate the association between dietary fats, serum fatty acids, and the occurrence and development of atopic diseases. METHODS: From a longitudinal database of a population-based sample, 231 sex- and age-matched pairs in 1980 and 154 pairs in 1986 were chosen, between whom we compared the dietary data, serum fatty acid composition, and occurrence of atopic diseases. The same variables were also compared between those who developed atopic disease later and those who did not during the 9-year follow-up. RESULTS: Examination of the dietary data in 1980 for those who had developed atopic disease compared with those who had remained healthy showed that the atopic children had used less butter before the expression of atopy. According to the cross-sectional data, the children with atopic disease consumed more margarine (mean 8.6 vs 7.3 [P = 0.04]), and less butter (mean 9.4 vs 11.6 g/1000 kcal [P = 0.002]), than the nonatopic children in 1980. Differences supporting these dietary findings were similarly found in the serum fatty acid data. CONCLUSION: The diet of the atopic children differed from that of the nonatopic children in the consumption of polyunsaturated fat.

Adolescent↗
PubMed1972

Reciprocal relationship between the production of adrenal damage by 7,12-dimethylbenz(a)anthracene in rats and the induction of liver damage by various treatments.

Further investigations into the mechanism by which CCl(4) administration to Sprague-Dawley rats protects them against the adrenocorticolytic action of dimethylbenz(a)anthracene (DMBA) are reported. The results show that CCl(4) must be given shortly before DMBA to achieve the best protection and that treatments given after DMBA are ineffective. It was established that the hepatotoxicity of CCl(4) in these experiments was related reciprocally to the adrenocorticolytic effect of DMBA.Protection with butter yellow (DAB) was achieved only when sufficient time elapses for drug metabolism to be stimulated in the liver. Butter yellow given after DMBA has no protective effect but the prior exposure of the rats to DMBA potentiates the hepatotoxic effects of DAB.Partial hepatectomy gives protection when performed 1 day before DMBA; shorter intervals give no protection. Some protection can be achieved with resection 6 or 24 hours after DMBA.

Adrenal Gland Diseases↗
PubMed1999

Diet in relation to socioeconomic status in patients with coronary heart disease.

OBJECTIVES: Nutrient intake, food consumption and fatty acid profile of serum cholesteryl esters (CE) were investigated in relation to education in patients with coronary heart disease (CHD). DESIGN: A cross-sectional survey in CHD patients selected from hospital records at least six months after hospitalisation. Food record, a questionnaire on dietary fat and fatty acid profile of CE were used to examine diet composition. Years of education, divided into three categories, were used to indicate socioeconomic status. SETTING: The district of Kuopio University Hospital in Finland. SUBJECTS: One hundred and nine patients with coronary artery bypass surgery, 106 patients with coronary angioplasty, 101 patients with acute myocardial infarction and 99 patients with acute myocardial ischaemia aged 61 y (33-74 y) (mean (range)). RESULTS: Men with a low level of schooling had a higher intake of total and saturated fat, a lower consumption of vegetables and fruits, more frequently used butter or butter based spread and less frequently used oil compared to the diets of men with middle or high education. Men with low or middle education had a lower intake of alcohol than men with a high level of education. Highly-educated women had a lower proportion of myristic acid in CE than low-educated women and a similar trend between myristic acid and educational level was found in men. CONCLUSIONS: The educational level of men with CHD influenced their nutrient intake and food consumption, but in women with CHID its impact seemed to be weaker.

Adult↗
PubMed2000

The role of attitudes, intentions and habit in predicting actual consumption of fat containing foods in Italy.

OBJECTIVE: To explore which were the most important predictors of the actual consumption of foods containing fat and to test if there were different profiles of beliefs and attitudes. DESIGN: A total of 1200 households participated in a food consumption survey for 7 days. A questionnaire, containing questions on belief, attitude and intention items based on Ajzen and Fishbein's model, was completed on the first day of the survey. SETTING: The study was conducted at the beginning of 1994 in Italy. SUBJECTS: In all, 860 subjects, randomly selected for each household participating in the food consumption survey, were included in this study. RESULTS: A cluster analysis based on average daily intake per capita of nine types of food containing fats was carried out on 860 subjects. The three clusters represented people with different criteria of preference for milk. The relationship between the variables was tested using the forward selection method in multiple regression. The attitude entered sequentially into the model assessing the intention of consuming, after the habit component. Habit was found to be the most the most important predictor of the actual consumption of each type of food. The intention entered into the equation as predictor of the consumption only for butter and olive oil. Habit has been found more important than intention in influencing the consumption of all types of food, whereas the intention did not enter into the model as determinant of the consumption with exception of butter and olive oil in which it remains as a significant predictor. CONCLUSIONS: The results of the cluster analysis suggested that subjects of cluster 1 might be more concerned about fat intake. The findings of the regressions showed that the subjective measure of habit entered in the model as the most important predictor of the actual consumption of each type of food. The low prediction of the actual consumption indicated that there could be other important variables influencing the consumption not included in this study.

Adolescent↗
PubMed2005

Antipsychotic drug-induced weight gain: development of an animal model.

OBJECTIVE: Weight gain is a prominent effect of most atypical antipsychotic drugs (AAPDs); yet, the mechanisms are not fully understood and no well-established mouse models exist for investigating the mechanisms. Thus, we developed a mouse model to evaluate the effects of AAPDs on eating, body weight (BW), and body composition. METHODS: Female C57BL/6J mice were used to test olanzapine, quetiapine, ziprasidone, and risperidone. Mice were acclimated to individual housing, given ad libitum access to chow and water, dosed with placebo peanut butter pills for 1 week, and then dosed daily with AAPD-laced peanut butter pills for 4 weeks. Weekly food intakes and BWs were measured, and body compositions were determined at the end of each experiment. RESULTS: After 4 weeks of treatment, olanzapine, quetiapine, ziprasidone, and risperidone caused significant weight increases, but only olanzapine and quetiapine were associated with significantly increased food intake. Body composition data revealed that olanzapine-treated mice had more relative fat mass and risperidone-treated mice had more relative lean mass than did control mice. Quetiapine and ziprasidone did not significantly affect relative body composition even though BW was increased. CONCLUSIONS: Oral AAPD administration causes increased BW in female mice. Our mouse model of AAPD-induced weight gain resembles the human response to these medications and will be used to investigate the mechanisms for weight gain and fat accumulation.

Animals↗
PubMed1998

Heat resistance of Listeria monocytogenes in dairy products as affected by the growth medium.

Listeria monocytogenes strains 1151 and Scott A were grown in broth at 30 degrees C and transferred to half cream, double cream and butter stored at 5 degrees C to determine the influence of dairy product composition on heat resistance at 52, 56, 60, 64 and 68 degrees C. Strain 1151 showed a higher heat resistance than strain Scott A. The heat resistance of both strains was higher in the dairy products than in broth, particularly at lower temperatures. A significant difference was observed between log 10 of the D-values in the different dairy products. The D-values obtained for both strains resuspended in all the dairy products would result in efficient elimination of the pathogen at 72.7 degrees C for 15 s. The highest D-value was 11.30 s at 68 degrees C and by using a z-value of 6.71 degrees C it can be determined that at 72.7 degrees C the D-value would be 1.5 s. The 15 s process would therefore achieve 10 log reductions. The effect of growth conditions on the heat resistance at 60 degrees C of L. monocytogenes Scott A was also investigated. When the cells were grown in the diary products themselves, and particularly butter, the heat resistance of Scott A was enhanced; for example, the D-values were 7.15 times higher than in broth. Further studies are required to investigate if this protection against heating exists at higher temperatures, in which case the efficiency of pasteurization treatments or other heat treatments would be considerably lowered.

Animals↗
PubMed2001

Dietary patterns and risk factors of diabetes mellitus among urban indigenous women in Fiji.

The dietary patterns of indigenous Fijians are changing rapidly. Dietary relationships in regard to the prevalence of diabetes are poorly studied in Fiji. A survey was conducted to show the relationship of dietary patterns and other lifestyle factors for the development of diabetes among urban indigenous women in Fiji. A sample of 200 Fijian women aged 30-39 who agreed to participate were interviewed by the use of semiquantitative food frequency, 3 day-24 h recall study. Physical activity and ceremonial dietary customs were also taken into consideration. Anthropometry included measurements of height, weight, waist and hip. Total percentage bodyfat measurements and glycosuria tests were also conducted. The results showed high rates of obesity manifested in high percentage bodyfat, high body mass index (BMI) and high waist and hip ratio (WHR). The mean 24 h dietary intake exhibited a moderate intake of protein, high intake of fat and a low intake of carbohydrate. The carbohydrate reduction was a result from the decline in consumption of traditional staples. Consumption of cereals and related products favored the high intake of butter and margarine and also encouraged the use of cooking oil in frying varieties of flour products. The daily intake of anti-oxidant vitamins of beta-carotene and vitamin E were low, however there was a high intake of vitamin C. The food frequency study revealed cassava, bread and sugar were consumed daily as the main carbohydrate foods. Fish and meat were the most frequently consumed protein foods. The main beverage was sweet tea with whole-cream milk. Butter, margarine, coconut cream, cheap lamb flaps and cooking oil provided the main sources of fat. Levels of physical activity included high sedentary lifestyles with a high rate of subjects being overweight and obese. Ceremonial dietary customs showed a high consumption of meat and fish. Fruits were rarely consumed. Glycosuria existed among the age group under study. The impact of dietary transition, coupled with dietary excesses and physical inactivity, seem to be potential risk factors of diabetes among the indigenous women in the urban area.

Adult↗
PubMed2003

A high-score Mediterranean dietary pattern is associated with a reduced risk of peripheral arterial disease in Italian patients with Type 2 diabetes.

BACKGROUND: The 'Mediterranean diet' is considered to exert protective effects on cardiovascular disease, although a wide range of dietary patterns exists among subjects living even in the same Mediterranean country. OBJECTIVE: To investigate the association between specific dietary patterns and peripheral arterial disease (PAD) in Italian Type 2 diabetes patients. DESIGN: From a cohort of 944 patients with Type 2 diabetes, 144 patients with PAD were selected, and matched for age and sex with 288 Type 2 diabetic control patients without macrovascular complications. A dietary score was elaborated from a semiquantitative food frequency questionnaire. The higher the final score, the healthier the eating habit. RESULTS: In multivariate analysis, a higher score was independently associated with a significant reduction in PAD risk [odds ratio (OR) = 0.44; 95% confidence interval (CI) 0.24, 0.83]. Diabetes duration (OR > 15 years = 2.49; 95% CI 1.45, 4.25), hypertension (OR = 2.12; 95% CI 1.31, 3.45) and butter consumption (OR = 2.6; 95% CI 1.15, 3.68) were also significantly associated with PAD. The dietary score significantly improved the predictive value of models based on duration of diabetes and hypertension. (LSR = 2.19, DF = 7, P < 0.001). The effect of a high dietary score on the risk of PAD was independent of diabetes duration and hypertension. CONCLUSION: In Italian Type 2 diabetics, a higher dietary score has a protective role against PAD. The use of butter increases the risk of PAD even in patients regularly consuming olive oil. Dietary advice may be helpful for the prevention of PAD in diabetics even in populations traditionally accustomed to a Mediterranean dietary habit.

Aged↗
PubMed1999

Effects of different forms of dietary hydrogenated fats on serum lipoprotein cholesterol levels.

BACKGROUND: Metabolic studies suggest that fatty acids containing at least one double bond in the trans configuration, which are found in hydrogenated fat, have a detrimental effect on serum lipoprotein cholesterol levels as compared with unsaturated fatty acids containing double bonds only in the cis configuration. We compared the effects of diets with a broad range of trans fatty acids on serum lipoprotein cholesterol levels. METHODS: Eighteen women and 18 men consumed each of six diets in random order for 35-day periods. The foods were identical in each diet, and each diet provided 30 percent of calories as fat, with two thirds of the fat contributed as soybean oil (<0.5 g of trans fatty acid per 100 g of fat), semiliquid margarine (<0.5 g per 100 g), soft margarine (7.4 g per 100 g), shortening (9.9 g per 100 g), or stick margarine (20.1 g per 100 g). The effects of those diets on serum lipoprotein cholesterol, triglyceride, and apolipoprotein levels were compared with those of a diet enriched with butter, which has a high content of saturated fat. RESULTS: The mean (+/-SD) serum low-density lipoprotein (LDL) cholesterol level was 177+/-32 mg per deciliter (4.58+/-0.85 mmol per liter) and the mean high-density lipoprotein (HDL) cholesterol level was 45+/-10 mg per deciliter (1.2+/-0.26 mmol per liter) after subjects consumed the butter-enriched diet. The LDL cholesterol level was reduced on average by 12 percent, 11 percent, 9 percent, 7 percent, and 5 percent, respectively, after subjects consumed the diets enriched with soybean oil, semiliquid margarine, soft margarine, shortening, and stick margarine; the HDL cholesterol level was reduced by 3 percent, 4 percent, 4 percent, 4 percent, and 6 percent, respectively. Ratios of total cholesterol to HDL cholesterol were lowest after the consumption of the soybean-oil diet and semiliquid-margarine diet and highest after the stick-margarine diet. CONCLUSIONS: Our findings indicate that the consumption of products that are low in trans fatty acids and saturated fat has beneficial effects on serum lipoprotein cholesterol levels.

Aged↗
PubMed2002

Clinical bronchiolitis obliterans in workers at a microwave-popcorn plant.

BACKGROUND: In May 2000, eight persons who had formerly worked at a microwave-popcorn production plant were reported to have severe bronchiolitis obliterans. No recognized cause was identified in the plant. Therefore, we medically evaluated current employees and assessed their occupational exposures. METHODS: Questionnaire responses and spirometric findings in participating workers were compared with data from the third National Health and Nutrition Examination Survey, after adjustment for age and smoking status. We evaluated the relation between exposures and health-related outcomes by analyzing the rates of symptoms and abnormalities according to current and cumulative exposure to diacetyl, the predominant ketone in artificial butter flavoring and in the air at the plant. RESULTS: Of the 135 current workers at the plant, 117 (87 percent) completed the questionnaire. These 117 workers had 2.6 times the expected rates of chronic cough and shortness of breath, according to comparisons with the national data, and twice the expected rates of physician-diagnosed asthma and chronic bronchitis. Overall, the workers had 3.3 times the expected rate of airway obstruction; those who had never smoked had 10.8 times the expected rate. Workers directly involved in the production of microwave popcorn had higher rates of shortness of breath on exertion and skin problems that had developed since they started work than workers in other parts of the plant. There was a strong relation between the quartile of estimated cumulative exposure to diacetyl and the frequency and extent of airway obstruction. CONCLUSIONS: The excess rates of lung disease and lung-function abnormalities and the relation between exposure and outcomes in this working population indicate that they probably had occupational bronchiolitis obliterans caused by the inhalation of volatile butter-flavoring ingredients.

Adolescent↗
PubMed2001

The US Peanut and Tree Nut Allergy Registry: characteristics of reactions in schools and day care.

OBJECTIVE: Severe food-allergic reactions occur in schools, but the features have not been described. STUDY DESIGN: Participants in the US Peanut and Tree Nut Allergy Registry (PAR) who indicated that their child experienced an allergic reaction in school or day care were randomly selected for a telephone interview conducted with a structured questionnaire. RESULTS: Of 4586 participants in the PAR, 750 (16%) indicated a reaction in school or day care, and 100 subjects or parental surrogates described 124 reactions to peanut (115) or tree nuts (9); 64% of the reactions occurred in day care or preschool, and the remainder in elementary school or higher grades. Reactions were reported from ingestion (60%), skin contact/possible ingestion (24%), and inhalation/possible skin contact or ingestion (16%). In the majority of reactions caused by inhalation, concomitant ingestion/skin contact could not be ruled out. Various foods caused reactions by ingestion, but peanut butter craft projects were commonly responsible for the skin contact (44%) or inhalation (41%) reactions. For 90% of reactions, medications were given (86% antihistamines, 28% epinephrine). Epinephrine was given in school by teachers in 4 cases, nurses in 7, and parents or others in the remainder. Treatment delays were attributed to delayed recognition of reactions, calling parents, not following emergency plans, and an unsuccessful attempt to administer epinephrine. CONCLUSIONS: School personnel must be educated to recognize and treat food-allergic reactions. Awareness must be increased to avoid accidental exposures, including exposure from peanut butter craft projects.

Adolescent↗
PubMed1979

The influence of diet and diabetes on stearoyl Conenzyme A desaturase (EC 1.14.99.5) activity and fatty acid composition in rat tissues.

1. Rats were given low-fat diets for 3 d in which the carbohydrate source was starch. The livers of animals given the fructose or sucrose had increased hepatic activities of the fatty acid synthetase and stearoyl CoA desaturase (EC 1.14.99.5) enzyme complexes: in those given fructose there was a lower activity of the enzymes in adipose tissue. 2. Similar results were obtained in rats given fructose diets for 30 d, but in animals which had previously been made diabetic with streptozotocin, the activities were lower. The dietary treatment made little difference to the fatty acid profiles of the tissue lipids. The diabetic condition on the other hand produced considerable changes in fatty acid profile. 3. With diets containing approximately 200 g fat/kg in the form of butter or of polyunsaturated margarine, the tissue lipids from rats given sucrose had less linoleic acid than those from rats given starch. In addition, there was the expected difference between the rats given butter or margarine. The results are discussed in relation to the current literature.

Adipose Tissue↗
PubMed1993

Comparative effects of four legume species on plasma lipids and faecal steroid excretion in hypercholesterolaemic pigs.

The effect of four species of legume seeds on plasma cholesterol levels and faecal steroid excretion was studied in pigs. Thirty-six growing boars were randomly allocated in groups of six to six diets which they ate continuously for 42 d. The diets fed were: 1, a semi-purified (SP; control group 1) diet; 2, SP + 10 g cholesterol/kg (control group 2); 3, 4, 5, 6, SP + cooked legumes (70:30, w/w; respectively baked beans (Phaseolus vulgaris), peas (Pisum sativum), lentils (Lens culinaris Medik.), butter beans (Phaseolus lunatus)) + 10 g cholesterol/kg. Fasting blood samples were taken on days 0, 14, 28, and 42 for the determination of total plasma cholesterol, high-density-lipoprotein (HDL)-cholesterol and triacylglycerols. Between days 7 and 11 and days 28 and 32 complete 5 d faecal collections were made for the measurement of neutral, acidic and conjugated steroids. After 42 d total cholesterol and HDL-cholesterol levels were raised significantly in all groups, but to different extents. In comparison with control group 2, diet-induced hypercholesterolaemia was significantly inhibited in the groups consuming baked beans, peas and butter beans, although HDL-cholesterol levels were maintained. Faecal steroid excretion by the legume groups was not significantly different from that of control group 2. The results suggest that the mechanism for the hypocholesterolaemic effect does not involve increased hepatic bile acid synthesis and thereby increased cholesterol clearance via the intestinal route.

Animals↗
PubMed1997

Effect of dietary fats rich in lauric, myristic, palmitic, oleic or linoleic acid on plasma, hepatic and biliary lipids in cholesterol-fed hamsters.

Effects of different dietary fats on plasma, hepatic and biliary lipids were determined in male golden Syrian hamsters (Mesocricetus auratus) fed on purified diets for 7 weeks. Diets were made by blending different fats containing characteristic fatty acids: butter (14:0 + 16:0), palm stearin (16:0), coconut oil (12:0 + 14:0), rapeseed oil (18:1), olive oil (18:1) and sunflowerseed oil (18:2). In all diets except the sunflowerseed oil diet dietary 18:2 was held constant at 2% energy. Total fat supplied 12% of energy and cholesterol was added at 4 g/kg diet. Plasma cholesterol and triacyglycerol concentrations were increased by dietary cholesterol. After 7 weeks, plasma cholesterol concentrations were highest with the palm stearin, coconut oil and olive oil diets (8.9, 8.9 and 9.2 mmol/l) and lowest with the rapeseed oil and sunflowerseed oil diets (6.7 and 5.5 mmol/l) while the butter diet was intermediate (8.5 mmol/l). Hepatic cholesterol concentration was highest in hamsters fed on the olive oil diet and lowest with the palm stearin diet (228 v. 144 mumol/g liver). Biliary lipids, lithogenic index and bile acid profile of the gall-bladder bile did not differ significantly among the six diets. Although the gallstone incidence was generally low in this study, three out of 10 hamsters fed on the palm stearin diet developed cholesterol gallstones. In contrast, no cholesterol gallstones were found with the other diets. Rapeseed and sunflowerseed oils caused the lowest plasma cholesterol and triacyglycerol concentrations whereas olive oil failed to demonstrate a cholesterol-lowering effect compared with diets rich in saturated fatty acids. Since 18:2 was kept constant at 2% of energy in all diets, the different responses to rapeseed and olive oils could possibly be attributed to their different contents of 16:0 (5.6% v. 12.8% respectively). Other possible explanations are discussed.

Animals↗
PubMed2004

The absorption of vitamin E is influenced by the amount of fat in a meal and the food matrix.

Vitamin E absorption requires the presence of fat; however, limited information exists on the influence of fat quantity on optimal absorption. In the present study we compared the absorption of stable-isotope-labelled vitamin E following meals of varying fat content and source. In a randomised four-way cross-over study, eight healthy individuals consumed a capsule containing 150 mg (2)H-labelled RRR-alpha-tocopheryl acetate with a test meal of toast with butter (17.5 g fat), cereal with full-fat milk (17.5 g fat), cereal with semi-skimmed milk (2.7 g fat) and water (0 g fat). Blood was taken at 0, 0.5, 1, 1.5, 2, 3, 6 and 9 h following ingestion, chylomicrons were isolated, and (2)H-labelled alpha-tocopherol was analysed in the chylomicron and plasma samples. There was a significant time (P<0.001) and treatment effect (P<0.001) in (2)H-labelled alpha-tocopherol concentration in both chylomicrons and plasma between the test meals. (2)H-labelled alpha-tocopherol concentration was significantly greater with the higher-fat toast and butter meal compared with the low-fat cereal meal or water (P<0.001), and a trend towards greater concentration compared with the high-fat cereal meal (P=0.065). There was significantly greater (2)H-labelled alpha-tocopherol concentration with the high-fat cereal meal compared with the low-fat cereal meal (P<0.05). The (2)H-labelled alpha-tocopherol concentration following either the low-fat cereal meal or water was low. These results demonstrate that both the amount of fat and the food matrix influence vitamin E absorption. These factors should be considered by consumers and for future vitamin E intervention studies.

Adult↗
PubMed2006

Gender-related response of lipid metabolism to dietary fatty acids in the hamster.

Gender and dietary fatty acids are involved in the regulation of lipid metabolism, disturbances of which can lead to pathologies such as metabolic syndrome or CVD. Possible interactions between these factors were investigated in male and female hamsters fed diets rich in either saturated fatty acids ( "butter" diet) or in alpha-linolenic acid ( "linseed oil" diet). Gender effect predominated over the diet effect on cholesterol (CH) metabolism; compared to males, females exhibited lower concentrations of plasma total CH (-20 %, P<0.001), LDL-CH (-40 %, P<0.001) and HDL-CH (-16 %, P<0.001), together with higher LDL receptor (+40 %) and lower HDL receptor (-60 %) hepatic content. Triacylglycerol (TG) metabolism was affected by diet above all: compared to animals fed the "butter" diet, those fed the "linseed oil" diet exhibited lower plasma (-23 %, P=0.046) and liver TG (-20 %, P=0.026) concentration which may result from both an increased beta-oxidation (P<0.001), without any change in PPARalpha mRNA, and a decreased hepatic lipogenesis (P=0.023), without increased sterol response element binding protein 1c (SREBP1c) mRNA. The response to diet was much more pronounced in males than in females, without gender effect on the transcription level of PPARalpha and SREBP1c. Finally, the "linseed oil" diet decreased the insulin resistance index (-80 %, P<0.001) with a more marked effect in males, in relation to their higher hepatic PPARgamma expression (+90 %, P=0.012). In conclusion, in our model, the response of either TG or CH to dietary fatty acids is modulated differently by gender. The possible relevance of these interactions to dietary practice should be taken into account in man.

Adipose Tissue↗
PubMed2000

Association of dietary elements and lower urinary tract symptoms.

OBJECTIVE: The purpose of the study was to establish whether dietary elements are related to lower urinary tract symptoms (LUTS) and thus to diseases causing LUTS. MATERIALS AND METHODS: This population-based study was carried out in 1994; a questionnaire was mailed to all men born in 1924, 1934 or 1944 living in Tampere or 11 rural or semi-rural municipalities in the same county, altogether 3143 men. Of this population, 68% were ultimately included in the study. A modified version of the DAN-PSS-1 questionnaire (10 of the questions) was used to assess urinary symptoms and problems arising from them. A symptom index was formed by multiplying the symptom and problem scores for hesitancy, incomplete emptying, urge, urge incontinence, nocturia and daytime frequency, and totalling the products. The men were also asked to report on their medical history, how often they ate vegetables and meat, whether they used butter, margarine or vegetable oil in food, how much alcohol and coffee they consumed, their smoking history and their weight and height. The risk of LUTS was estimated according to the frequency of meat and vegetable intake and the kind of fat used. RESULTS: The confounder-adjusted risk of LUTS was 0.68 (95% CI 0.54-0.86) among men consuming vegetables daily compared with men consuming vegetables less frequently. Compared with men who eat meat less frequently, the confounder-adjusted risk of LUTS was 2.08 (95% CI 1.00-4.10) among men consuming meat weekly, and 2.56 (95% CI 1.30-5.02) among men consuming meat daily. The confounder-adjusted risk of LUTS was 0.73 (95% CI 0.58-0.93) among men who consumed butter compared to those who did not. CONCLUSIONS: Dietary elements may also have an important role in the development of diseases causing LUTS. Direct effects of food components may likewise influence the occurrence of LUTS.

Aged↗
PubMed1984

Reversal of the promotional effect of high-fat diet on mammary tumorigenesis by subsequent lowering of dietary fat.

Female Sprague-Dawley rats were given 7,12-dimethylbenz(a)anthracene at 50 days of age to induce mammary tumors, and beginning one week later were fed a high-fat, semipurified diet containing 20% sunflowerseed oil to promote tumor development. After another 7 weeks, when one third of the rats had palpable mammary tumors, the rats were randomly assigned to five groups of 31 animals each, with the same number of tumor-bearers in each group. One group was continued on the high-fat diet, another was given a fat-free diet, and the three remaining groups were fed diets containing 10% lard, butter, or coconut oil, respectively. During the next 29 weeks, rats fed the diets containing 0% or 10% fat developed significantly fewer tumors than those continued on the 20% fat diet. The diets containing 10% fat suppressed tumorigenesis at least as effectively as the fat-free diet. Rats fed the 10% butter and 10% lard diets had growth rates comparable to those fed the 20% sunflowerseed-oil diet throughout, and evidence of essential fatty acid deficiency was seen only in rats on the fat-free diet. These results provide additional evidence that high-fat diets promote development of mammary cancer and suggest that reducing the level of dietary fat might help to prevent the development and recurrence of breast cancer in humans.

9,10-Dimethyl-1,2-benzanthracene↗