• Journal of Nutrition and Health
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• 제40권1호
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• pp.49-57
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• 2007

To estimate whether serum leptin has any effects on body composition during the lactational and postnatal periods, we investigated the relationship of serum leptin levels and anthropometric parameters at right after delivery and 16 weeks after delivery in mothers and their infants. Subjects who signed the concent form, participated in this study were recruited from K university hospital. Characteristics of the subjects (age; $31.0{\pm}4.2$ yr, gestation period; $39.5{\pm}1.0$ wk) were investigated and anthropometric parameters (weight, height, body mass index and percent body fat for mothers, and weight, height, head circumference, chest circumference, and Kaup index for infants) were measured. Serum leptin levels of mothers and their infants also measured. Mean maternal serum leptin levels were $9.9{\pm}8.2ng/ml$ and $9.1{\pm}7.2ng/ml$ at right after delivery and 16 weeks after delivery, respectively showing no significant differences. Mean infant's serum leptin levels at birth $(1.8{\pm}0.4ng/ml)$ were significantly lower than that of at 16 weeks after birth $(4.2{\pm}0.8ng/ml)$ (p < 0.001). Leptin levels of male infants were not different from those of female infants. There were no correlations between the maternal serum leptin levels with their body weight, percent body fat after delivery. However, significant correlations were found between maternal serum leptin levels with their body weight, BMI, percent body fat at 16 weeks after delivery (r = 0.80, p < 0.01, r = 0.90, p < 0.001; r = 0.83, p < 0.01, respectively). There were no correlations between the infant's serum leptin levels and their weight, height, head circumference, and chest circumference. No significant relations were also found between maternal serum leptin levels with those of their infants. As a conclusion, maternal serum levels of leptin should be used with a caution to estimate their infant's leptin levels as well as their anthropometric parameters. Further researches are needed to examine the relationship among the leptin levels of mother's serum, breast milk, placenta, and infant's serum.

• 대한지역사회영양학회:학술대회논문집
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• 대한지역사회영양학회 2004년도 추계학술대회
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• pp.100-100
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• 2004

• 대한지역사회영양학회지
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• 제7권5호
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• pp.686-695
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• 2002

The purpose of this study is to assess the maternal iron status during pregnancy and to evaluate the relationships bet-ween the iron indices of maternal, umbilical cord serum, placenta and pregnancy outcomes. Venous bloods samples were drawn from 54 pregnant women just before delivery and cord bloods of their newborn babies were collected immediately after birth. And also, placental tissues were extracted. We investigated the difference of the iron status indices of maternal, umbilical cord serum and placental tissue between two gestational age group (PT group, NT group : preform delivery and normal term delivery at 34.9wk and 39.0wk of mean gestational length, respectively) and also assessed correlations of iron status indices of maternal, umbilical cord serum and placenta tissue. And lastly, we related between birth weight and iron status indices of maternal, umbilical cord serum and placental tissue. The concentrations of maternal serum ferritin and of placental iron were significantly higher in NT group (32.1 $\pm$ 21.1 ng/ml, 68.5 $\pm$ 16.7 $\mu$g/g), than those of NT group (20.8 $\pm$ 11.6 ng/ml, 53.2 $\pm$ 17.4 $\mu$/g) respectively (p<0.001). However the serum ferritin of umbilical cord were significantly higher in NT group (PT : 109.4 $\pm$ 65.7 ng/ml, NT : 147.0 $\pm$ 56.8 ng/ml) than those of PT group (p<0.05). Our results showed that a negative association between birth weight (r=-0.361) and maternal serum ferritin and that a positive association between birth weight and umbilical cord serum ferritin (r=0.261). Despite not a significant difference, there was tendency that highest concentration of maternal serum ferritin was associated with the lowest birth weight. These findings indicate that birth weight of newborn is dependent of multiple factors such as maternal iron status during pre-pregnancy, body size, general nutritional status. Although for women who enter pregnancy with low iron stores, enough intakes of iron during pregnancy could produce undesirable pregnancy outcome. Therefore we suggest for successful pregnancy outcome and delivery differential iron supplementation program will be carried out individual pregnant women on the basis of pre-pregnancy nutritional status.

• Journal of Nutrition and Health
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• 제28권7호
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• pp.636-643
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• 1995

This study was conducted to find some differences in infant feeding pattems between well educated Koreans and local populations living in Texas, USA. Initiation rate of exclusive breastfeeding in the hospital was 35.9% in Koreans and 60.4% in Americans. At 2, 4 and 6 months, exclusive breastfeeding rates were 34.0%, 20.8% and 13.2% for Koreans and 47.2%, 34.0% and 27.2% for Americans respectively. There was a significant difference in age of weaning from breast between these two groups(p<0.01). In Koreans the most common reason for the early termination before 4 months was maternal report of milk insufficiency. 55.6% of Koreans and 42.3% of Americans fed infants on scheduled rather on demand feeding. Primary sources of advice about feeding were medical professionals in Americans while baby's grandmother was the main source in Koreans. In Americans, choice of breastfeeding was not associated with ethnicity, maternal education, and family income in the study. Interventions to promote and support participants of Women Infants and Children(WIC) may play a role in Americans. It might be suggested that effective nutrition education programs targeting for Korean mothers to promote breastfeeding should be needed urgently and systematically.

• Journal of Nutrition and Health
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• 제15권1호
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• pp.62-69
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• 1982

Sprague Dawley 종의 어미 쥐에게 수유기에 양적인 식이제한을 한 후, 이유이후 새끼쥐에 게 4주일간 식이회복을 시켰다. 각 새끼 쥐에 있어서, 임의로 먹인 대조군에 비하여 식이제한군의 체중, 근육 단백질, 근육 3-methylhistidine과 혈청 단백질 함량의 변화에 대하여 분석하였다. 식이 제한군의 체중은 대조군보다 매우 낮았으며 , 식이 회복에 의하여 거의 정상으로 회복 되었다. 또한 식이 제한군의 근육 단백질, 3-methylhistidine 함량과 혈청 단백질 함량도 어미 쥐의 식이제한에 의하여 대조군에 비하여 매우 낮았으나, 4주일간의 식이회복에 의하여 빨리 증가하여, 대조군과의 유의차가 없었다. 이로써 영양불량의 쥐에서는 3-methylhistidine의 대사가 장애를 받아 저하되나, 이유 이후의 식이회복에 의해 거의 정상으로 회복됨을 알 수 있다.

• Journal of Nutrition and Health
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• 제46권2호
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• pp.147-155
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• 2013

Higher bone mineral density (BMD) at a young age, calcium intake, and exercise are important for prevention of osteoporosis later in life. We examined familial effects of BMD between mothers and children and adolescents aged 8-19 in Cheonan, Korea and the relationships between BMD and lifestyle parameters, including: food and nutrient intake and exercise. For daughters and sons, significant differences in BMD were observed at the three bone sites (total femur, femur neck, and lumbar spine) according to age, gender, body mass index, exercise, and milk consumption, compared to the reference value for each classification category. Mean differences in children's BMD were observed according to maternal BMD. Energy and calcium intake were lower in both children and mothers in comparison to the estimated daily energy requirement; however, their protein intake was much greater than the daily recommended intake. After adjusting for age and gender and for mother's age, body mass index, and total calorie intake, results of the food frequency test showed an association of a higher intake of meat, meat products, milk and milk products with greater BMD of total femur, femur neck, and lumbar spine of children. In addition, exercise was positively associated with higher BMD. Regression analysis showed a positive association of BMD with age, male gender, exercise, and mother's BMD. In conclusion, after adjustment for environmental parameters, maternal BMD had a positive influence on BMD in daughters and sons. This finding suggests that parents need to check their BMD in order to determine whether their children are at increased risk of low BMD.

• Journal of Nutrition and Health
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• 제5권2호
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• pp.75-82
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• 1972

Fifteen cases of primiparas and their offsprings (fetal cord) were investigated with regard their serum total, free and esterified cholesterol by means of Liberman Buchard reaction. The serum ${\alpha}-and\;{\beta}-lipoprotein$ were analyzed by cellulose acetate electrophoresis, and the serum atherolipid numbers were calculated on the bases of the serum total cholesterol and ${\beta}-/{\alpha}-$ lipoprotein ratio, with the following conclusion. 1.Total, free and esterified cholesterol are $178.9{\pm}25.3$, $45.1{\pm}12.6$ and $133.7{\pm}20.6\;mg.%$ in the normal control women, $201.5{\pm}29.5,\;58.7{\pm}42.1$ and $157.1{\pm}26.2\;mg.%$ in the maternal blood, showing hypercholesterolemia in the latter as compared to the former. 2. The serum total, free and esterified cholesterol in the cord blood are $94.5{\pm}20.4$, $32.9{\pm}1.5$ and $61.2{\pm}18.9mg.%$, showing hypocholesterolemia as compared to the control women and maternal blood. 3. The serum ${\alpha}-$, $pre-{\beta}$, ${\beta}-lipoprotein$ and chylomicron are $24.2{\pm}4.2$, $17.3{\pm}3.4$, $51.8{\pm}4.8$ and $6.0{\pm}1.6%$ in the normal women, whereas $14.9{\pm}2.1$, $22.2{\pm}5.1$, $58.7{\pm}3.3 and 3.1{\pm}1.2%$ in the maternal serum, $32.4{\pm}8.1$, $28.8{\pm}2.4$, $25.8{\pm}7.0$ and $3.1{\pm}0.9%$ in the cord serum, showing $hyper-{\beta}-lipoproteinemia$ in the former and $hypo-{\beta}-lipoproteinemia$ in the latter. 4. The serum atherolipid number of the normal control women, maternal cord blood are $4.21{\pm}1.24$, $8.02{\pm}1.42$ and $1.12{\pm}0.37$, showing hyperlipemia in the former and hypolipemia in latter. 5. The relative ratio of the serum free and esterified cholestrol of both normal control women and maternal blood is about 1 : 3, while that of the fetal blood about 1 : 2. 6. The relative ratioes of the serum ${\alpha}-and$ ${\beta}-lipoprotein$ in the control women is about 1 : 2, that of materna blood about 1 : 3 and that of the fetal blood about equal magnitude. 7. The serum esterified cholesterol, ${\alpha}-lipoprotein,\;{\beta}-/{\alpha}-lipoprotein$ ratio and atherolipid number fluctuates are proportionally between the maternal and fetal blood, while the serum free, total cholesterol and ${\beta}-lipoprotein$ between the two vary inversely with statistically significant corelations. 8. It is apparent from the above results that the fetal nutritional demand for lipids resulted from hypocholesterolemia and hypo ${\beta}-lipoproteinemia$ seems to be met satisfactorily by maternal hypercholesterolemia and hyper ${\beta}-lipoproteinemia$, which seems to pose a significant maternal-infant nutritional relationship. A brief ciscussion was made on these conciusion in the light of biochemistry and endocrinology.

• Nutrition Research and Practice
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• 제1권4호
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• pp.328-334
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• 2007

The purpose of this study was to examine the relationship between nutrient intake and bone mineral density (BMD) of elderly women in Daegu, Korea. In this study, the bone mineral densities of 101 elderly women in Daegu were measured, and their nutrient intake, dietary habits, and maternal factors were determined through a survey. The subjects were divided into the normal group, the osteopenia group, and osteoporosis group to find out if there is a correlation between bone mineral density and maternal factors, dietary habits, and nutrient intake through their T-scores, analyzed according to the standards of WHO. Classification by T-scores of the participants were the normal group 25.7%, the osteopenia group 39.6%, the osteoporosis group 34.7%. Menopause age of the osteoporosis group was lower, postmenopausal period was longer, and last delivery age was significantly higher than the normal group (p<0.05). Osteoporosis group had a lower percentage of 'everyday' fruit and vegetable intakes and higher percentage of 'never' dairy intake than of the normal group. Vitamin A, vitamin $B_1$, and vitamin $B_2$ intakes of participants in the osteoporosis group were lower than those in the normal group (p<0.05). In conclusion, nutritional education is necessary to encourage high intake of milk and vegetables and fruits along with calcium, vitamin A, $B_1$, and $B_1$ intakes and low intake of sodium for the prevention of elderly women's osteoporosis.

• 대한지역사회영양학회지
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• 제5권4호
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• pp.569-577
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• 2000

This study was carried out to investigate the feeding practices, growth status and correlation with maternal perceptions of breast feeding and lactation with infuts' feeding methods in the Pocheon area. The subjects were 103 infants ranging from 3 to 21 postpartum months and their mothers. The results obtained were as follows : In this survey, 36.9% of the infants were breast-feeding, while 53.4% of them were bottle-feeding, and 9.7% of them were mixed-feeding. The reason for bottle-feeding was due mainly to the lack of breast-milk secretion. Z-scores of weight-f3r-age and height-for-age were similar to Korean standards, but malnutrition and overnutrition were also noticed by kaup index and WLI. The average maternal perceptions of breast-feeding and lactation was 3.7 out of 10 possible points, the breast-feeding group scored 4.7, and formula-feeding and mixed-feeding group scored 3.0. That of BF group was higher than FF+MF groups and was positively correlated with growth status. Therefore to ensure proper growth of infants and to promote breast-feeding, efforts should be given to community nutritional services including nutrition education for the importance of colostrum and breast-milk, practical breast-feeding methods, and nutritional management during pregnancy. Also nutrition education for mothers will be continued to 1-3 postpartum months to promote successful breast-feeding.

• 대한지역사회영양학회지
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• 제8권6호
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• pp.831-839
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• 2003

This study was conducted to investigate whether there were any differences in the body image perception, dietary behavior and maternal dietary guidance between an obese group (“OG”) and a normal weight group (“NWG”), and furthermore, to provide basic informations for comprehensive educational programs for obese children. For this purpose, the questionnaire method was used. The subjects were 1,501 elementary school children, in the 4th to the 6th grades in Seoul, Busan, Daegu, Gwangju, and Andong, and their mothers (1,459). The percentage of the children who misperceive their body image was higher among the girls (30.4%) than the boys (22.6%) The average scores for balanced dietary behavior as assessed by the children was higher in the OG than in NWG; the average scores for dietary control as assessed by their mothers was higher in the NWG than in the OG. The scores for dietary behavior as assessed by the children was different from those as assessed by their mothers. Assuming that the mothers would give more correct and balanced answers, the development of a reliable questionnaire for dietary behavior that could be more accurately answered by the children is necessary. Maternal dietary guidance for dietary control was more frequently given in the OG as compared with the NWG and more frequently in girls as compared with boys ; while that for balanced diet was more in the NWG as compared with the OG. The worse the mothers estimate of the dietary behavior for their children, the more they tried to guide their children in dietary behavior. It is recommended that the children should be taught to correctly recognize the degree of their obesity, and receive the appropriate educational program accordingly, including the maternal dietary guidance.