1.Preliminary research on status of some micro elements in pregnant women
Journal of Preventive Medicine 1999;10(2):57-61
This research was implemented in 135 pregnant women aged from 20-28 in 2 communes in Bac Ninh province. The results: anaemia is very frequent (40.7% of subjects has Hb<11 mg/dl; besides Zinc deficiency is also a severe problem of public health (low plasma Zn<65 mg/dl is 69.7%). There is a proportional correlation between Hb and Zn concentrations. The iron, zinc dietary intake is attained 50-70% compared with RDAs.
Pregnant Women
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Iron, Dietary
2.Establishment and evaluation of a method for phages enrichment by ferric trichloride-polyvinylidene fluoride membrane filter.
Hua Yao ZHANG ; Zhe TIAN ; Song TANG ; Hai Jian ZHOU ; Fen Xia FAN ; Biao KAN
Chinese Journal of Preventive Medicine 2023;57(3):443-450
Objective: To establish and evaluate a method of enriching bacteriophages in natural water based on ferric trichloride-polyvinylidene fluoride (FeCl3-PVDF)membrane filter. Methods: Based on the principle of flocculation concentration, the method of recovering bacteriophage from water sample was established by using iron ion flocculation combined with membrane filter. The titer of phage was determined by Agar double layer method. The recovery efficiency of phage was detected by phage fluorescence staining and real-time fluorescence PCR reaction. Water samples from different sources were collected for simulation experiment to evaluate the enrichment effect. At the same time, the sewage discharged from hospitals was taken as the actual water sample, and the common clinical drug-resistant bacteria were used as the host indicator bacteria to further analyze the enrichment effect of FeCl3-PVDF membrane filter rapid enrichment method on the bacteriophage in natural water samples. Results: The method of enrichment of bacteriophages in natural water by iron ion concentration 50 mg/L and PVDF membrane filter was established. The recovery rate of this method for bacteriophage was 93%-100%. Under the multi-functional microscope, it was found that the bacteriophage of the enriched water sample increased significantly and the fluorescence value of the enriched water sample determined by the enzyme labeling instrument was about 13 times as high as that before enrichment. After concentration of the actual water samples from the hospital drainage, the positive rate of bacteriophage isolation in the concentrated group and the non-concentrated group was 23% and 4%, and the fluorescence value in the concentrated group was 2-24 times as high as that of the non-concentrated group. Conclusion: The method of FeCl3-PVDF membrane filter is a simple, efficient and rapid method for enriching bacteriophages in different water samples.
Humans
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Bacteriophages
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Bacteria
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Iron
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Iron, Dietary
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Water
3.Efficacy of iron fortified milk and iron pill supplementation on iron status of pregnant women at 12 communes of Dong Hung districts, Thai Binh province
Journal of Preventive Medicine 2001;11(1):32-37
After 16 weeks of supplementation there was almost no significant change in Hb of the iron fortified milk group and the iron pill group, although it was higher than Hb of the without iron group (P<0.01). In the milk group and the placebo group, Hb was more and more decreased.
Pregnant Women
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Dietary Supplements
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iron
4.Effects of Dietary Protein and Calcium Levels on Iron and Zine Balance in Young Korean Women.
Kisun NAM ; Kyungwon KIM ; Jaoeok KOO ; Haymie CHOI
Korean Journal of Community Nutrition 1998;3(2):218-227
No abstract available.
Calcium*
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Calcium, Dietary
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Dietary Proteins*
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Female
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Humans
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Iron*
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Zinc
6.Efficacy of intermittent iron supplementation in children with mild iron-deficiency anemia.
Jian-Yun LI ; Li LI ; Jun LIU ; Xiao-Lan LIU ; Ji-Wen LIU
Chinese Journal of Contemporary Pediatrics 2022;24(2):182-185
OBJECTIVES:
To study the efficacy of intermittent iron supplementation in children with mild iron-deficiency anemia.
METHODS:
A total of 147 children with mild iron-deficiency anemia were enrolled in this prospective study. They were divided into an intermittent iron supplementation group (n=83) and a conventional iron supplementation group (n=64). The levels of hemoglobin were measured before treatment and after 1 and 3 months of treatment. The treat response rate and the incidence rate of adverse drug reactions were compared between the two groups.
RESULTS:
Both groups had a significant increase in the level of hemoglobin after iron supplementation (P<0.05). After 1 month of treatment, the conventional iron supplementation group had a significantly higher treatment response rate than the intermittent iron supplementation group (61% vs 42%, P<0.05). After 3 months of treatment, there was no significant difference in the treatment response between the two groups (86% vs 78%, P>0.05). The incidence rate of adverse drug reactions in the conventional iron supplementation group was significantly higher than that in the intermittent iron supplementation group (25% vs 8%, P<0.05).
CONCLUSIONS
For children with mild iron-deficiency anemia, although intermittent iron supplementation is inferior to conventional iron supplementation in the short-term efficacy, there is no significant difference in the long-term efficacy between the two methods, and compared with conventional iron supplementation, intermittent iron supplementation can reduce the incidence of adverse drug reactions, alleviate family financial burdens, and improve treatment compliance of children, thus holding promise for clinical application.
Anemia, Iron-Deficiency/epidemiology*
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Child
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Dietary Supplements/adverse effects*
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Hemoglobins/analysis*
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Humans
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Iron, Dietary/adverse effects*
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Prospective Studies
7.Iron deficiency increases blood concentrations of neurotoxic metals in children.
Korean Journal of Pediatrics 2014;57(8):345-350
Iron deficiency affects approximately one-third of the world's population, occurring most frequently in children aged 6 months to 3 years. Mechanisms of iron absorption are similar to those of other divalent metals, particularly manganese, lead, and cadmium, and a diet deficient in iron can lead to excess absorption of manganese, lead, and cadmium. Iron deficiency may lead to cognitive impairments resulting from the deficiency itself or from increased metal concentrations caused by the deficiency. Iron deficiency combined with increased manganese or lead concentrations may further affect neurodevelopment. We recently showed that blood manganese and lead concentrations are elevated among iron-deficient infants. Increased blood manganese and lead levels are likely associated with prolonged breast-feeding, which is also a risk factor for iron deficiency. Thus, babies who are breast-fed for prolonged periods should be given plain, iron-fortified cereals or other good sources of dietary iron.
Absorption
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Cadmium
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Edible Grain
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Child*
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Diet
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Humans
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Infant
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Iron*
;
Iron, Dietary
;
Manganese
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Metals*
;
Risk Factors
8.Effects of Lacto-ovo Vegetarian Diet on Nutrient Intakes and Serum Lipid Levels in Non-smoking Non-alcohol Drinking College Male Students.
Sang Up LEE ; Soon Nam CHOI ; Mi Eun YUH
Journal of the Korean Dietetic Association 2008;14(4):371-381
In order to elucidate the effects of a lacto-ovo vegetarian diet on serum lipid levels, 91 male collegians residing in the Seoul area were recruited. The vegetarians did not smoke tobacco nor drink alcohol. Their anthropometric measurements, dietary intakes, and blood lipid concentrations were compared to age-matched omnivorous controls. The subjects were divided into four groups. The four groups were: 1) NSNDV (n=25): Non Smoking Non Drinking Vegetarians, 2) NSNDO (n=10): Non Smoking Non Drinking Omnivores, 3) SDO (n=37): Smoking, Drinking Omnivores, 4) SDM (n=11): Smoking Drinking Meat-eaters. Total serum cholesterol, HDL-cholesterol and hematocrit were analyzed. The results were as follows: Weight (p<0.05) and BMI (p<0.01) were significantly higher in SDM than NSNDV. Dietary protein (p<0.01), iron (p<0.05) and dietary lipids (p<0.01) from animals in NSNDV were significantly lower than the results in the SDM. Interestingly enough, we noted no significant differences between the four groups in terms of average total dietary protein, dietary lipids and dietary iron, total serum cholesterol, or HDL-cholesterol. Dietary fiber intake was significantly higher in NSNDV than in SDM (p<0.05). Weight, BMI, and total cholesterol were significantly positively correlated with animal protein (p<0.05) and animal lipid (p<0.01) intake. These results showed that vegetarian collegians who haven't smoked tobacco nor drunk alcohol evidenced lower body weight, BMI, and dietary animal lipid intake, but higher dietary fiber intake, than the other three groups. Additionally, intake of animal protein (p<0.001) and intake of animal lipids (p<0.001) were significantly positively correlated with body weight, BMI, and total serum cholesterol in male collegians.
Aminoacridines
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Animals
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Body Weight
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Cholesterol
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Diet, Vegetarian
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Dietary Fiber
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Dietary Proteins
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Drinking
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Hematocrit
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Humans
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Iron
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Iron, Dietary
;
Male
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Smoke
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Smoking
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Tobacco
9.Comparison of dietary food and nutrient intakes by supplement use in pregnant and lactating women in Seoul.
Hyesook KIM ; Won JANG ; Ki Nam KIM ; Ji Yun HWANG ; Hae Kyung CHUNG ; Eun Ju YANG ; Hye Young KIM ; Jin Hee LEE ; Gui Im MOON ; Jin Ha LEE ; Tae Seok KANG ; Namsoo CHANG
Nutrition Research and Practice 2013;7(3):199-206
This study was performed to compare the dietary food and nutrient intakes according to supplement use in pregnant and lactating women in Seoul. The subjects were composed of 201 pregnant and 104 lactating women, and their dietary food intake was assessed using the 24-h recall method. General information on demographic and socioeconomic factors, as well as health-related behaviors, including the use of dietary supplements, were collected. About 88% and 60% of the pregnant and lactating women took dietary supplements, respectively. The proportion of dietary supplements used was higher in pregnant women with a higher level of education. After adjusting for potential confounders, among the pregnant women, supplement users were found to consume 45% more vegetables, and those among the lactating women were found to consume 96% more beans and 58% more vegetables. The intakes of dietary fiber and beta-carotene among supplement users were higher than those of non-users, by 23% and 39%, respectively. Among pregnant women, the proportion of women with an intake of vitamin C (from diet alone) below the estimated average requirements (EAR) was lower among supplement users [users (44%) vs. non-users (68%)], and the proportion of lactating women with intakes of iron (from diet alone) below the EAR was lower among supplement users [usesr (17%) vs. non-users (38%)]. These results suggest that among pregnant and lactating women, those who do not use dietary supplements tend to have a lower intake of healthy foods, such as beans and vegetables, as well as a lower intake of dietary fiber and beta-carotene, which are abundant in these foods, and non-users are more likely than users to have inadequate intake of micro-nutrient such as vitamin C and iron.
Ascorbic Acid
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beta Carotene
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Diet
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Dietary Fiber
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Dietary Supplements
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Ear
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Eating
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Fabaceae
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Female
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Humans
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Iron
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Pregnant Women
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Socioeconomic Factors
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Vegetables
10.The influence of preventive iron supplementation to iron nutritional status in breastfed infants.
Yue-jiao WANG ; Qin WU ; Li-chen YANG ; Xiao-rui ZHANG ; Chao-mei ZENG ; Xiao-guang YANG ; Jie LIU
Chinese Journal of Preventive Medicine 2012;46(4):299-302
OBJECTIVETo analyze the effects to iron status who were given preventive iron supplements for two months from when they were breast-fed to four-month-old.
METHODSA total of 123 infants in four-month-old age who were breast-fed were randomly divided into iron supplementation group (63 cases) and control group (60 cases), iron supplementation group was supplied with low-dose iron (1 mg×kg⁻¹×d⁻¹) for two months with no intervention for control group. Blood samples were collected to test C reactive protein and iron status indicators in six-month-old age group infants, and the growth indices were measured and compared on the gender difference of iron status at and 6 months.
RESULTSAfter 2 months of low-dose iron supplementation, the hemoglobin of iron supplementation group (26 cases) increased about 5.5 g/L while the control group (34 cases) increases about 0.0 g/L (median), 95% confidence intervals were -7.0 - 13.0 g/L and -9.0 - 15.0 g/L, respectively. The hemoglobin increase of iron supplementation group was higher than the control group, the difference was statistically significant (u = -2.326, P < 0.05). The other iron nutritional status and the growth did not show any significant difference between iron supplementation group and control group (P > 0.05). At age 6 month, the MCV of the boys were (75.89 ± 3.34) fl, while the girls were (77.20 ± 3.17) fl. The boys had lower values of MCV than the girls, and the gender difference was statistically significant (t = 4.73, P < 0.05). The other iron nutritional status did not show any significant gender difference (P > 0.05).
CONCLUSIONLow-dose iron supplementation of breast-fed infants at 4-month-old can increase the hemoglobin level when they were 6-month-old, and had no measurable side effect on growth.
Anemia, Iron-Deficiency ; prevention & control ; Breast Feeding ; Dietary Supplements ; Female ; Humans ; Infant ; Infant, Newborn ; Iron, Dietary ; administration & dosage ; therapeutic use ; Male ; Nutritional Status