1.Evaluation of Two Biologically Active Compounds for Control of Wheat Root Rot and its Causal Pathogens.
Mohamed HASHEM ; Afaf M HAMADA
Mycobiology 2002;30(4):233-239
The main aim of this study is to evaluate the efficiency of two biologically active compounds (Strom and F-760) in control of wheat root rot disease and its causal organisms. Fusarium graminearum, F. oxysporum, F. solani and Bipolaris sorokiniana were used as target organisms. In vitro, the two compounds showed fungicidal effect on all investigated pathogens resulted in suppression of radial growth and mycelial dry weight of them. Under greenhouse conditions, treatment of wheat grains with either Strom or F-760 before cultivation significantly reduced the percent of disease distribution as well as the mean disease rating of plants in both seedling and flowering stages. Fresh and dry weights of plants as well as water maintenance capacity were increased as the result of applying these compounds as seed dressing. Also data showed that the membrane stability of plants was injured as a result of infection with all investigated organisms, while this injury was alleviated when F-760 and Strom were applied. The K+ efflux and the leakage of UV-absorbing metabolites was stimulated with fungal infection. However, F-760 and Storm treatment partially retarded the stimulatory effect on leakage of K+ and UV-absorbing metabolites of fungal infected plants. On the other side, the fungal infection had inhibitory effects on pigment fractions (chlorophyll a, b, and carotenoids) biosynthesis in wheat leaves. This retarding effect was partially or completely alleviated as the grains were treated with the applied compounds.
Bandages
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Edible Grain
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Flowers
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Fusarium
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Membranes
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Seedlings
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Triticum*
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Water
;
Weights and Measures
2.Use of Dactylaria brochopaga, a Predacious Fungus, for Managing Root-Knot Disease of Wheat (Triticum aestivum) Caused by Meloidogyne graminicola.
Mycobiology 2011;39(2):113-117
A laboratory experiment was conducted to study the induction of constricting rings and test predation of Dactylaria brochopaga isolates against second stage juveniles (J2s) of Meloidogyne graminicola. Among the five fungal isolates, isolate D showed the greatest number of predatory rings and, consequently, trapped the maximum number of M. graminicola J2s in dual cultures. Another pot experiment was conducted to study the effect of D. brochopaga (isolate D) on the management of wheat root-knot disease. Applying a mass culture (10 g/pot) and a spore suspension of the fungus with and without cow dung manure to soil infested with 2,000 M. graminicola juveniles significantly improved plant height, root length, weights of shoots, roots, panicles and grains per hill compared to those in the control. Moreover, the fungus significantly reduced the number of root-knots, the number of egg masses, juveniles, and females per hill compared to those in the control. Bio-efficacy of the fungus was heightened when the mass culture and a spore suspensions were used in combination with cow dung manure to improve the plant growth parameters and reduce the number of root-knot and reproductive factors. Further investigations should be conducted to identify the impact of this fungus in the field.
Edible Grain
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Female
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Fungi
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Humans
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Manure
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Ovum
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Plants
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Soil
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Spores
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Suspensions
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Triticum
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Tylenchoidea
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Weights and Measures
3.Diversity and Plant Growth Promoting Capacity of Endophytic Fungi Associated with Halophytic Plants from the West Coast of Korea.
Irina KHALMURATOVA ; Hyun KIM ; Yoon Jong NAM ; Yoosun OH ; Min Ji JEONG ; Hye Rim CHOI ; Young Hyun YOU ; Yeon Sik CHOO ; In Jung LEE ; Jae Ho SHIN ; Hyeokjun YOON ; Jong Guk KIM
Mycobiology 2015;43(4):373-383
Five halophytic plant species, Suaeda maritima, Limonium tetragonum, Suaeda australis, Phragmites australis, and Suaeda glauca Bunge, which are native to the Muan salt marsh of South Korea, were examined for fungal endophytes by sequencing the internal transcribed spacer (ITS) region containing ITS1, 5.8S rRNA, and ITS2. In total, 160 endophytic fungal strains were isolated and identified from the roots of the 5 plant species. Taxonomically, all 160 strains belonged to the phyla Ascomycota, Basidiomycota, and Zygomycota. The most dominant genus was Fusarium, followed by the genera Penicillium and Alternaria. Subsequently, using 5 statistical methods, the diversity indices of the endophytes were determined at genus level. Among these halophytic plants, P. australis was found to host the greatest diversity of endophytic fungi. Culture filtrates of endophytic fungi were treated to Waito-C rice seedlings for plant growth-promoting effects. The fungal strain Su-3-4-3 isolated from S. glauca Bunge provide the maximum plant length (20.1 cm) in comparison with wild-type Gibberella fujikuroi (19.6 cm). Consequently, chromatographic analysis of the culture filtrate of Su-3-4-3 showed the presence of physiologically active gibberellins, GA(1) (0.465 ng/mL), GA(3) (1.808 ng/mL) along with other physiologically inactive GA(9) (0.054 ng/mL) and GA(24) (0.044 ng/mL). The fungal isolate Su-3-4-3 was identified as Talaromyces pinophilus.
Alternaria
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Ascomycota
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Basidiomycota
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Chenopodiaceae
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Endophytes
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Fungi*
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Fusarium
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Genetic Variation
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Gibberella
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Gibberellins
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Korea*
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Penicillium
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Plants*
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Plumbaginaceae
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Salt-Tolerant Plants*
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Seedlings
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Talaromyces
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Wetlands
4.Total antioxidant capacity of the Korean diet.
Jeong Hwa HAN ; Hye Jin LEE ; Mi Ran CHO ; Namsoo CHANG ; Yuri KIM ; Se Young OH ; Myung Hee KANG
Nutrition Research and Practice 2014;8(2):183-191
BACKGROUND/OBJECTIVES: The objective of this study was to measure and/or estimate the total antioxidant capacity of the Korean diet. MATERIALS/METHODS: Eighty-one plant foods that were expected to exhibit rather high antioxidant activities were selected from the Korean diet using the Fifth Korean National Health and Nutrition Survey (KNHANES V). These foods were categorized into 11 food groups: cereals, potatoes, legumes, nuts, vegetables, kimchies, mushrooms, fruits, fruit juices, sea weeds, and oils. The foods were mixed in the proportions specified in traditional Korean recipes and analyzed. The measured indicators for antioxidant capacities were total phenolics, 2,2-diphenyl-1-picrylhydrazyl (DPPH), oxygen radical absorbance capacity (ORAC), and Trolox equivalent antioxidant capacity (TEAC). RESULTS: Total phenolics were high in the fruit juices, nuts, vegetables, and fruits; and the average DPPH, ORAC, and TEAC values were high in the vegetables, fruits, fruit juices, and nuts. The correlation coefficient between the content of total phenolics of each food and the in vitro antioxidant capacity was relatively high at 0.851. The intake of total phenolics per capita per day in the Republic of Korea was estimated to be 127 mg. The total dietary antioxidant capacity (TDAC) values, which were obtained from the total antioxidant capacity of each food, taking into account the intake of each food, were 20,763, 54,335, and 876.4 micromol of Trolox equivalents using the DPPH, ORAC, and TEAC methods, respectively. The food group that contributed the most to the Korean TDAC was cereals at 39.7%, followed by fruits and vegetables at 27.8% and 13.9%, respectively. The contribution of legumes, nuts, fruit juices, and mushrooms was quite minimal at less than 2% each. CONCLUSIONS: The content of total phenolics and the antioxidant capacity of the Korean diet are significantly correlated and the high contributing food groups are cereals, fruits, and vegetables.
Agaricales
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Edible Grain
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Diet*
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Fabaceae
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Fruit
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Nutrition Surveys
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Nuts
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Oils
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Oxygen
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Phenol
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Plants
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Republic of Korea
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Solanum tuberosum
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Vegetables
5.Acacia Nilotica: New Plant for Help in Pelvic Organ Prolapse.
Nasibeh ROOZBEH ; Leili DARVISH
Journal of Menopausal Medicine 2016;22(3):129-130
No abstract available.
Acacia*
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Pelvic Organ Prolapse*
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Plants*
6.Comparison of Nutrient Intakes between Korean and United States Adults.
The Korean Journal of Nutrition 2005;38(10):856-863
Dietary Variety Score (DVS) or Nutrient Adequacy Ratio (NAR) offers a way of comparing eating habits across populations and across countries. This study compared nutrients intakes, food intakes, DVS, and NAR between Korean and US adults using the large national survey data. 4662 Korean adults (men: 2201, women: 2461) aged 20 - 49 years were selected from the 'Korean National Health and Nutrition Survey, 2001' and 4199 US adults (men: 2127, women: 2072) aged 20 - 49 years were selected from the 'US National Health and Nutrition Examination Survey (NHANES IV, 1999 - 2002)'. The total plant food intakes were high in Korean adults, but the total animal food intakes were high in US adults. Intakes of legumes and nuts, vegetables and mushrooms were higher in Korean than in US adults. On the other hand, intakes of meats, milk and dairy products of US adults were higher than Korean. Beverage intakes were 8 - 10 times higher in US adults than in Korean. The mean DVS of Korean men and women were higher than US men and women. Intakes of fat, calcium and vitamin B2 of US adults were 1.5 - 2 times higher than those of Korean, which could probably related to larger consumption by US adults on milk and dairy product. While the intakes of carbohydrate and vitamin C of the Korean were higher than the US adults, which could presumably related to higher grain and vegetable consumption. Percent energy intakes from carbohydrate, protein, and fat were 64.1%, 15.8%, and 20.1% for Korean men, 52.4%, 15.0%, and 32.6% for US men, 65.9%, 14.9%, 19.2% for Korean women, and 52.1%, 14.7%, 33.2% for US women respectively, which showed higher %energy from carbohydrate in Korean and higher %energy from fat in US adults. Most nutrient intakes except energy and vitamin C expressed as %RDA were higher in US than in Korean adults. Mean Adequacy Ratio (MAR) of US men and Korean men were both 0.85, while the MAR was 0.81 for Korean women, 0.79 for US women. The Korean women's diet showed more diverse and adequate than the US women's diet.
Adult*
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Agaricales
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Animals
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Ascorbic Acid
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Beverages
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Calcium
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Dairy Products
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Diet
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Eating
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Edible Grain
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Fabaceae
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Female
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Hand
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Humans
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Male
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Meat
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Milk
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Nutrition Surveys
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Nuts
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Plants
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Riboflavin
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United States*
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Vegetables
7.Optimum Conditions for Artificial Fruiting Body Formation of Cordyceps cardinalis.
Soo Young KIM ; Bhushan SHRESTHA ; Gi Ho SUNG ; Sang Kuk HAN ; Jae Mo SUNG
Mycobiology 2010;38(2):133-136
Stromatal fruiting bodies of Cordyceps cardinalis were successfully produced in cereals. Brown rice, German millet and standard millet produced the longest-length of stromata, followed by Chinese pearl barley, Indian millet, black rice and standard barley. Oatmeal produced the shortest-length of fruiting bodies. Supplementation of pupa and larva to the grains resulted in a slightly enhanced production of fruiting bodies; pupa showing better production than larva. 50~60 g of brown rice and 10~20 g of pupa mixed with 50~60 mL of water in 1,000 mL polypropylene (PP) bottle was found to be optimum for fruiting body production. Liquid inoculation of 15~20 mL per PP bottle produced best fruiting bodies. The optimal temperature for the formation of fruiting bodies was 25degrees C, under conditions of continuous light. Few fruiting bodies were produced under the condition of complete darkness, and the fresh weight was considerable low, compared to that of light condition.
Asian Continental Ancestry Group
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Edible Grain
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Cordyceps
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Darkness
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Fruit
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Hordeum
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Humans
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Larva
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Light
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Panicum
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Polypropylenes
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Pupa
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Setaria Plant
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Water
8.Diet and Nutritional Management in Functional Gastrointestinal Disorder: Irritable Bowel Syndrome.
Korean Journal of Medicine 2016;90(2):105-110
Irritable bowel syndrome (IBS) is a multifactorial disorder with the pathogenesis of abnormal gastrointestinal motility, low-grade inflammation, visceral hypersensitivity, communication in the gut-brain axis, and so on. Traditionally, IBS has been treated with dietary and lifestyle modification, fiber supplementation, pharmacological and psychological therapy. Carbohydrates have a range of foods regularly consumed including grains such as rye and wheat, vegetables, fruits, and legumes. Short-chain carbohydrates poorly absorbed exert osmotic effects in the intestinal lumen increasing its water volume, and are rapidly fermented by bacteria with consequent gas production. These effects may be the basis of the beginning of gastrointestinal symptoms. This made the use of lactose-free diets in those with lactose intolerance and of fructose-reduced diets for fructose malabsorption. All dietary poorly absorbed short-chain carbohydrates have similar and additive effects in the intestine, so a concept has been developed to regard them collectively as fermentable oligosaccharides, disaccharides, monosaccharides and polyols (FODMAPs) and to evaluate a dietary approach that restricts them all. Based on observational and comparative studies and on randomized-controlled trials, FODMAPs trigger gastrointestinal symptoms in patients with IBS. Food choice via the low FODMAP and potentially other dietary strategies is now a realistic and efficacious therapeutic approach for symptoms of IBS. In Korea, the strategy of Korean diet for Korean patients with IBS needs apposite to the Korean cases.
Axis, Cervical Vertebra
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Bacteria
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Carbohydrates
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Edible Grain
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Diet*
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Disaccharides
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Fabaceae
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Fructose
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Fruit
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Gastrointestinal Diseases*
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Gastrointestinal Motility
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Humans
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Hypersensitivity
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Inflammation
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Intestines
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Irritable Bowel Syndrome*
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Korea
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Lactose Intolerance
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Life Style
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Monosaccharides
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Oligosaccharides
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Secale
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Triticum
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Vegetables
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Water
9.A Long Term Observation of Total Cholesterol, Blood Pressure, BMI and Blood Glucose Concerned with Dietary Intake.
Korean Journal of Community Nutrition 2000;5(2):172-184
To establish a basic cohort which can survey the nutrient and food intake related to the health status of the middle and old-aged vertically, a longitudinal survey of 110 adults over forty years old was conducted three times in Chon-ju city over 5 years (1994-1999), and the influences of health status by changes in their nutrient and food intake were examined in this study. The results were as follows ; The number of subjects was 110(43 man, 67 women), 10.0% in their forties, 28.2% in their fifties, 45.4% in their sixties 6.4% over seventy, and their average age was 61.4. There were decrease of height about 1 cm, increase of body fat % and few changes of BMI during the testing period. As the subjects were aging, the percentage of anemia increased, but averages of blood pressure and blood glucose(men : 91.8 mg/dl, women : 90.3 mg/dl) were constant. Total cholesterol increased from 196.7 mg/dl to 212.6 mg/dl(P 0.05) over five years, and the numerical values for women were higher than that of men. In many cases, lack of nutrient intake was shown, as compared with the Recommended Dietary allowance(RDA) especially calcium and vitamin A(71.7%, 64.9% of RDA). Grains intake showed a tendency to decrease(P 0.01). On the contrary, fruit intake showed a tendency to increase(P 0.001). On whole meal, plant foods were 85.1% and animal foods were 14.9%. As dietary factors influencing health status were investigated, blood glucose was influenced by vitamin B2, potatoes and triglyceride, DBP and SBP were affected by vitamin B1, vitamin C, legumes, fishes, triglyceride and age. Total cholesterol was under the influence of triglyceride, milk, seeds and fat. BMI was influenced by iron, SBP, animal food, and age.
Adipose Tissue
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Adult
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Aging
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Anemia
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Animals
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Ascorbic Acid
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Blood Glucose*
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Blood Pressure*
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Calcium
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Edible Grain
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Cholesterol*
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Cohort Studies
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Eating
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Fabaceae
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Female
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Fishes
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Fruit
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Humans
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Iron
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Jeollabuk-do
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Longitudinal Studies
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Male
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Meals
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Milk
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Plants
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Riboflavin
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Solanum tuberosum
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Thiamine
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Triglycerides
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Vitamins
10.Primary study on developmental speciality and cultural practices of Amphicarpaea edgeworthii.
Ya-ke QIAO ; Gui-lan LI ; Wen-po WANG ; Shu-guo GAO ; Yin-fu ZHOU
China Journal of Chinese Materia Medica 2003;28(10):918-920
OBJECTIVEThe experiments were conducted to study specialty of seed germinating, plant growing and developing and cultural practices of A. edgeworthii.
METHODThe germinating and sowing test, growth habitants, photosensitive reaction of seedling from subterraneous seeds and above ground seeds on A. edgeworthii were studied in this experiment.
RESULT AND CONCLUSIONThe results indicated that (1) The water could not be absorbed by seed from plant above ground; (2) The underground and above ground seeds could normally germinate, grow, blossom and bear fruits, A. edgeworthii sowed in early May, blossomed in early September and matured in the last ten days of October; (3) The seed leaf of seedling grew underground; (4) The underground seed was produced from subterraneous branch stem which developed from node of seed leaf; (5) A. edgeworthii was shade demanding, high-temperature sensible short-day light plant. The flowering could be greatly advantaged by short-day light treatment (12, 10, 8, 6 h). Cultural practices were studied also in this experiment.
Fabaceae ; growth & development ; Plants, Medicinal ; growth & development ; Seedlings ; growth & development ; Seeds ; growth & development ; Sunlight