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Machlin L J - - 1995
Epidemiological studies strongly suggest that high intakes of foods rich in beta carotene, as well as those rich in vitamin E or vitamin C, reduce the risk of some but not all cancers and cardiovascular disease. It is difficult to determine whether these antioxidant nutrients per se are the sole ...
Oguntona C R - - 1995
The food and nutrient intake and the proportion of these supplied by street foods was studied in a group of 142 adolescent Nigerians, using structured questionnaire, 24-hour recall and weighted intake protocols. The results show that all the major groups of foods are represented in the menu and street food ...
Valverde M E - - 1995
Huitlacoche is the ethnic name applied to the young fruiting bodies (galls) of the fungus Ustilago maydis, which causes common smut of maize (Zea mays L). Biologists and agronomists have historically used U. maydis as a model to study a wide array of genetic, physiological, ecological, and phytopathological phenomena. In ...
Lee H P - - 1994
The association between the consumption of preserved foods in infancy, childhood and adulthood and the risk of nasopharyngeal carcinoma was investigated in a case-control study among Singapore Chinese: 200 cases (73% male) were compared with 406 hospital controls (71% male). Significantly increased risks were observed in association with frequent adult ...
Conly J - - 1994
It is unclear whether menaquinones produced by the intestinal microflora play any role in human nutrition. Reports of coagulopathy due to vitamin K deficiency occurring in patients receiving broad spectrum antibiotics indirectly suggest that vitamin K2 produced by the gut microflora may be utilized by the host. We analyzed the ...
Bellizzi M C - - 1994
OBJECTIVE: To relate premature mortality from coronary heart disease (CHD) to national food and nutrient supplies. DESIGN: Descriptive correlational study. SETTING: Nineteen western European and five non-European countries. METHODS: Premature mortality from CHD in men below 65 years was related to recalculated Food and Agriculture Organization (FAO) food, antioxidant vitamins ...
Brinkmann E - - 1994
Vitamin A concentrations in livers of fattening animals and liver-containing products may reach much higher values than was assumed up to now. This effect may be caused by animal feed, which is usually supplemented with vitamins. To support this supposition, 57 liver samples of different species of animals, 97 liver ...
van der Beek E J - - 1994
OBJECTIVE: Clustering of low vitamin intake may entail a greater functional and/or health risk than the summation of separate low intakes may suggest. Therefore, the prevalence of combined low thiamin, riboflavin, vitamin B6 and vitamin C intake in various adult sex-age groups in The Netherlands was estimated. METHODS: Nutritional risks ...
Shovic A C - - 1994
Samoans are known to be the most overweight population in the world. They suffer from high rates of weight-related diseases such as heart disease, hypertension, and diabetes mellitus. In the past, dietary intervention has either been nonexistent or reliant on food exchange lists that do not include foods traditionally part ...
Kirkpatrick C S - - 1994
Intakes of vitamin A, dietary antioxidants, and other dietary components were examined for their relation to the risk of malignant melanoma among 234 cases and 248 controls in three counties of western Washington State. Cases were drawn from persons diagnosed with melanoma between 1984 and 1987 and identified through a ...
Zwijnenberg R J - - 1994
Squamous metaplasia of the glandular epithelium was found in the palatine salivary glands of two canaries, originating from a flock in which there was a variable intake of egg food. The histological changes, in combination with the history, indicate a vitamin A deficiency as a result of a selective intake ...
Eliason B C - - 1994
Nutritional or vitamin supplements, which are largely unregulated by the Food and Drug Administration (FDA) and are sold in health food stores and through mail-order catalogs, may contain various combinations and doses of vitamins, minerals, herbs, chemicals, and animal tissues. Some of the products marketed as nutritional supplements contain desiccated ...
Rokitzki L - - 1994
OBJECTIVE: The investigation was designed to obtain information concerning the vitamin B6 status in high-performance athletes. SUBJECTS: Fifty-seven strength and speedpower athletes were available for examination. METHODS: Vitamin B6 status was determined by a 7-day weighed food record, enzyme activity (alpha-EGOT) measurement, whole blood concentrations (Saccharomyces carlsbergenisis and 4-pyridoxinic acid ...
Fay M - - 1994
Patients with chronic atrophic gastritis intestinal metaplasia (IM) are suspected of being at increased risk for the intestinal type of gastric cancer. Diet is one of several etiologic components that may contribute to the development of the IM lesion. One hundred patients (50 with IM and 50 without IM) were ...
Vedrina-Dragojević I - - 1994
Investigation of the effect of freezing and storage at -18 degrees C for 5 months on the stability of total vitamin B6 in foods of different origin leads to the conclusion that the decrease in vitamin B6 content ranged from 18.92% to 60.26% and that the loss is significantly greater ...
Ghozlan H A - - 1994
Mycobacterium phlei was tested for its ability to utilize beet molasses as the sole carbon source and produce riboflavin. The crude beet molasses was analyzed and treated in various ways to reduce its heavy element content and to remove the muddy residue. Promising amounts of riboflavin were produced when the ...
Tucker K - - 1993
From late 1991 to mid-1993, cases of optic neuropathy of unknown etiology, which first appeared in unusual numbers in a western province of Cuba, spread and multiplied throughout the island. The dominant symptoms changed, becoming increasingly those of peripheral neuropathy. Incidence rates peaked in April 1993. An estimated 50,000 cases ...
Tang A M - - 1993
The authors sought to determine if different levels of dietary intake of micronutrients are associated with the progression of human immunodeficiency virus type 1 (HIV-1) infection to acquired immunodeficiency syndrome (AIDS). A total of 281 HIV-1 seropositive homosexual/bisexual men were seen semiannually since 1984 at the Baltimore/Washington, DC site of ...
Krogh V - - 1993
The foods which contribute most to the intake of selected vitamins and minerals were evaluated for the elderly in Italy and compared to food sources of nutrients in the US. A sample of 945 Italians, aged > or = 60, from 14 centres throughout Italy, each completed weighed 7-day food ...
Linderborn K M - - 1993
1. Over-the-counter vitamin/mineral supplement consumption has become customary among many older adults in the United States. Inappropriately used, these dietary supplements possess the capacity for producing toxic reactions. 2. Vitamins/minerals can be harmful when taken incorrectly or in lavish proportions. Even though the Food and Drug Administration does not classify ...
Wiecha J L - - 1993
Food habits were examined in homeless families in Boston-area hotels and family shelters. Reported household income, food expenditures, food sources, and attitudes were analyzed for 77 caretakers grouped according to kitchen facilities provided and amount of food provided. Diets were analyzed using a 4-week semiquantitative food frequency questionnaire for 71 ...
Nelson M - - 1993
The purpose of the study was to assess the prevalence of Fe deficiency and Fe-deficiency anaemia in a group of apparently healthy adolescents, and to assess the value of a food frequency and amount questionnaire as a screening tool to identify children at risk of Fe deficiency. White schoolchildren (399) ...
Sullivan F M - - 1993
Consideration of environmental influences on human reproduction must include an investigation of the socioeconomic factors that play an important role in embryo-fetal development. Nutritional factors are of prime importance, and modern methods of food production and supply have led to new hazards for pregnant women. For example, pregnant women have ...
Ryan C - - 1993
Dietary intake of vitamin D was assessed from a 24-hour food recall collected from 293 independent living adults 55 years of age or older who participated in the South Carolina Nutrition Survey. Mean vitamin D intake was only 46 percent of the RDA. The data in this study indicated that ...
Clark J H - - 1993
An 8-year-old boy with autism developed a limp and periorbital swelling. He was found to have hypocalcemia and radiographic evidence of rickets. Ophthalmologic examination revealed xerophthalmia and corneal erosions. Serum vitamin A was undetectable and serum 25-hydroxyvitamin D was decreased. Dietary history revealed a markedly altered intake consisting of only ...
Hollman P C - - 1993
An intercomparison of methods involving 18 European laboratories was organized to assess the state-of-the-art of vitamin determination in foods. Each laboratory received identical samples of dry food reference material (homogeneous powders, milk powder, pork muscle and haricot vert beans), which have recently been certified for major dietary components and elements. ...
Hollman P C - - 1993
An intercomparison of methods involving 18 European laboratories was organized to assess the state-of-the-art of vitamin determination in foods. Each laboratory received identical samples of dry food reference material (homogeneous powders, milk powder, pork muscle and haricot vert beans), which were recently certified for major dietary components and elements. Each ...
Sinha R - - 1993
The vitamin C content of foods was examined from two national databases and new values were obtained by HPLC. HPLC values were lower in four of the five highest vitamin C contributors to the US diet (orange juice, grapefruit, tomatoes and tomato juice, and potatoes), as well as in broccoli, ...
Singh A - - 1993
Nutritional status was determined in 17 ultramarathoners registered to participate in the Old Dominion 100-Miler. They had a mean age of 40 +/- 2 yr and ran 67.7 +/- 9.0 miles.wk-1. Subjects maintained 4-d dietary records on two occasions: usual and prerace. Fasting blood samples and 24-h urine collections were ...
Pinto R M - - 1993
Ascorbic acid fasting serum levels and levels after a test dose were carried out in a group of elderly subjects: nine men with 70 +/- 6 years and six women 74 +/- 7 years old. They live in the same old folks home and ate similar food. Their ascorbic acid ...
Jacques P F - - 1993
We compared the intake of 12 micronutrients as reported on a semiquantitative food frequency questionnaire with corresponding biochemical indicators of nutrient status in a sample of 57 males and 82 females aged 40-83 y. Age-, sex-and energy-adjusted correlation coefficients ranged from near zero for thiamin, vitamin A, and zinc to ...
Löwik M R - - 1993
The vitamin C status in blood fractions in 135 elderly women aged 65 years and older was studied within the framework of the Dutch Nutrition Surveillance System. Mean (+/- standard deviation) vitamin C intake (mg/day) was lower among women living in a nursing home (54 +/- 27 mg/day) than among ...
Abdullah M - - 1993
The International Vitamin A Consultative Group (IVACG) developed guidelines for a simplified dietary assessment to identify groups at risk to an inadequate intake of vitamin A. This study was conducted in Bangladesh to validate this simplified approach. The individual food intakes of 121 children, aged 2-5 years, were measured in ...
Dorant E - - 1993
By means of a two-day dietary record, information on the use of dietary supplements has been collected in 1987 and 1988 in a representative sample of the Dutch population aged 1-75 years. More than 17 percent of the population had been using at least one dietary supplement on at least ...
Reyes-Moreno C - - 1993
Legumes are one of the world's most important sources of food supply, especially in developing countries, in terms of food energy as well as nutrients. Common beans are a good source of proteins, vitamins (thiamine, riboflavin, niacin, vitamin B6) and certain minerals (Ca, Fe, Cu, Zn, P, K, and Mg). ...
Hertog M G - - 1993
Flavonoids are strong antioxidants that occur naturally in foods and can inhibit carcinogenesis in rodents. Accurate data on population-wide intakes of flavonoids are not available. Here, using data of the Dutch National Food Consumption Survey 1987-1988, we report the intake of the potentially anticarcinogenic flavonoids quercetin, kaempferol, myricetin, apigenin, and ...
Yale C E - - 1993
A series of morbidly obese patients was treated surgically with a gastric bypass, and a subsequent series received a vertical banded gastroplasty. To compare some of the nutritional effects of these two procedures we measured serum vitamin B12 levels, absorption of food vitamin B12, frequency of microcytosis of erythrocytes, and ...
O'Neil C A CA Department of Food Science, North Carolina State University, Raleigh - - 1992
Cis/trans configurations of carotenoids are known to effect the biochemistry of carotenoids in certain situations. Methodology for separating carotenoid cis/trans isomers is of importance to nutritionists and food scientists because cis isomers of provitamin A carotenoids have lower provitamin A activities than the all-trans form. Traditional food processing and preservation ...
Johnston PK - - 1992
Ecologic and philosophic as well as health concerns have led to an increasing number of adolescent vegetarians. The various types of vegetarianism differ substantially in dietary composition. Benefits of the vegetarian diet must be balanced by careful attention to ensuring adequate intake of protein and amino acids as well as ...
Pan W H - - 1992
Dietary consumption data obtained by food weighing for 539 households in Taiwan in 1980-1981 were used to search for predictor foods of individual intake of several vitamins and calcium. Stepwise multiple regression analysis was carried out on food items that were univariately and significantly associated with nutrient intakes, to screen ...
Menzel D B - - 1992
Although the evidence for oxidative stress for air pollution in the human lung is fragmentary, the hypothesis that oxidative stress is an important, if not the sole, mechanism of toxicity of oxidizing air pollutants and tobacco smoke is compelling and growing. First, biochemical mechanisms have been worked out for oxidation ...
Millar J - - 1992
The loss of the ability of primates and man to synthesise ascorbic acid (vitamin C) is usually seen as an evolutionary accident, with no benefit to the species. This paper argues that the loss of this biosynthetic ability has allowed vitamin C to act as a 'fertility factor' in primate ...
Pikkarainen S A SA Department of Clinical Chemistry, University of Kuopio, - - 1992
The determination of retinyl palmitate and total vitamin A in liver and liver-based ready-to-eat foods is described. The method is very simple as sample preparation is minimal, and the isocratic elution of the C18 column with pure methanol does not necessitate a sophisticated instrumental set-up. The method is accurate with ...
Weinstock M A - - 1992
The rapid increase in melanoma incidence and mortality has given rise to nationwide and international campaigns that encourage the public to protect themselves from solar radiation with clothing, sunscreens, and other measures. The basis of these campaigns has been challenged by proponents of the theory that vitamin D, which is ...
Jacobus C H - - 1992
BACKGROUND: Vitamin D has been added to milk in the United States since the 1930s to prevent rickets. We report the unusual occurrence of eight cases of vitamin D intoxication that appear to have been caused by excessive vitamin D fortification of dairy milk. METHODS: Medical records were reviewed and ...
Simon-Schnass I M - - 1992
Food records confirm that there is a high risk of malnutrition at high altitudes because of the usual lack of fresh food. As to the use of pharmacologic properties of micronutrients, only some data on vitamin E are described. Two placebo-controlled studies showed that a prolonged stay at high altitude ...
Assaf-Anid N - - 1992
The polychlorinated biphenyl congener 2,3,4,5,6-pentachlorobiphenyl and hexachlorobenzene were reductively dechlorinated in an aqueous biomimetic model system containing vitamin B12. The products of 2,3,4,5,6-pentachlorobiphenyl dechlorination were 2,3,5,6- and 2,3,4,6-tetrachlorobiphenyl. Hexachlorobenzene dechlorinated to pentachlorobenzene and a mixture of 1,2,4,5- and 1,2,3,5-tetrachlorobenzene. The proton from water was shown to be the source of ...
Vandamme E J - - 1992
Vitamins and related biofactors belong to those few chemicals with a direct positive appeal to people. There is indeed a large need for extra vitamins, other than those derived from plant and animal food sources, due to unbalanced food habits or processing, food shortage or disease. Added vitamins are now ...
Cruz J A - - 1991
In 18 towns of 12 European countries, 1217 men and 1241 women born between 1913 and 1918 participated in a dietary survey (modified dietary history). Each country used its own nutrient data bank for the conversion of food intake data into vitamin and mineral intakes. Information on the use of ...
Vanderslice J T - - 1991
A recent survey of foods that constitute the major sources of vitamin C in the American diet yielded information on the total content of this vitamin as well as the amount of its two forms, ascorbic acid and dehydroascorbic acid (DHAA) in these foods. Samples of individual foods showed a ...
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