• Animal Bioscience
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• 제35권6호
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• pp.938-947
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• 2022

Objective: The beneficial effects of glycine were tested in piglets with diquat-induced hepatic injury. Methods: Thirty-two piglets were assigned by a 2×2 factorial experimental design including glycine supplementation and diquat challenge. After 3 weeks of feeding with a basic diet or a 1% glycine supplemented diet, piglets were challenged with diquat or saline. After 1 week later, the piglets were slaughtered and samples were collected. Results: Our results indicated that glycine alleviated diquat induced morphological hepatic injury, decreased the activities of plasma alanine aminotransferase, aspartate aminotransferase and glutamyl transpeptidase in the piglets under diquat challenge, and increased total antioxidant capacity and antioxidative enzyme activity significantly. Adding glycine enhanced the concentrations of hepatic adenosine triphosphate and adenosine diphosphate. Transmission electron microscope observation showed that diquat induced clear hepatocytes ferroptosis and its effect could be alleviated by glycine to a certain degree. Moreover, glycine significantly affected mRNA and protein expression of ferroptosis-related signals in the liver. Conclusion: These results demonstrated that glycine attenuated liver damage via inhibiting ferroptosis.

• Asian-Australasian Journal of Animal Sciences
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• 제31권1호
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• pp.47-53
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• 2018

Objective: The objective of this experiment was to investigate the effects of heat stress on milk protein and blood amino acid profile in dairy cows. Methods: Twelve dairy cows with the similar parity, days in milk and milk yield were randomly divided into two groups with six cows raised in summer and others in autumn, respectively. Constant managerial conditions and diets were maintained during the experiment. Measurements and samples for heat stress and no heat stress were obtained according to the physical alterations of the temperature-humidity index. Results: Results showed that heat stress significantly reduced the milk protein content (p<0.05). Heat stress tended to decrease milk yield (p = 0.09). Furthermore, heat stress decreased dry matter intake, the concentration of blood glucose and insulin, and glutathione peroxidase activity, while increased levels of non-esterified fatty acid and malondialdehyde (p<0.05). Additionally, the concentrations of blood Thr involved in immune response were increased under heat stress (p<0.05). The concentration of blood Ala, Glu, Asp, and Gly, associated with gluconeogenesis, were also increased under heat stress (p<0.05). However, the concentration of blood Lys that promotes milk protein synthesis was decreased under heat stress (p<0.05). Conclusion: In conclusion, this study revealed that more amino acids were required for maintenance but not for milk protein synthesis under heat stress, and the decreased availability of amino acids for milk protein synthesis may be attributed to competition of immune response and gluconeogenesis.

• 대한지역사회영양학회지
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• 제16권4호
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• pp.454-465
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• 2011

This study was carried out to investigate distribution of obesity, body composition, weight control and dietary behaviors, and to analyze the relationship between Body Mass Index (BMI) and physical characteristics, body composition and dietary behaviors by anthropmetric measurement and questionnaires. The 199 study subjects were divided into 3 age groups; 30's (78), 40's (77) and 50's (44) and 4 groups by BMI ; under weight (4.5%), normal (51.3%), over weight (26.1%) and obese (18.1%). Amount of skeletal muscle, body water, mineral and body fat were significantly increased with BMI. There were especially significant increase skeletal muscle 5.3 kg ($19.1\;{\rightarrow}\;23.5\;kg$), body water 5.3 kg ($26.3\;{\rightarrow}\;31.6\;kg$) and fat 15.2 kg ($11.2\;{\rightarrow}\;26.4\;kg$) from under weight to obesity group, respectively (p < 0.01). There were significantly decreased in the ratio of body water (10.3%), protein (2.7%) and body mineral (1.1%) from under weight to obesity, but significant increase 14.1% in body fat (p < 0.001). About 44.4% of under weight group and 40.1% of normal group and 50% of over and obesity group had dissatisfaction on their body images. Most of the women were concerned about their body images and experienced weight control. Dietary behavior scores of obesity group were significant lower than the other four groups (p < 0.001). There were significant positive correlation between BMI and body water (r = 0.62), protein (r = 0.52), skeletal muscle (r = 0.63), body fat (r = 0.91) and WH ratio (r = 0.91), respectively (p < 0.001). The correlation between BMI and body fat and WH ratio were much higher than the correlation between weight and fat and WH ratio.

• Pediatric Gastroenterology, Hepatology & Nutrition
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• 제24권6호
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• pp.535-545
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• 2021

Purpose: This study aimed to analyze the practice of complementary feeding and its influencing factors in children under 2 years of age in Indonesia. Methods: This cross-sectional study used data obtained from the 2017 National Socioeconomic Survey. The sample totaled 1,751 households with children under 2 years of age, who received complementary feeding in urban and rural communities. Furthermore, the practice of complementary feeding was evaluated on the basis of the variations in provided food grouped into two categories: complete and incomplete. This study applied bivariate and multivariate analytical methods. Multivariate analysis was performed using binary logistic regression. Results: The proportion of children under 2 years of age who received complementary feeding with complete variant food was 15.9%, while that with incomplete variant food was 84.1%. Furthermore, the factor influencing the practice of complementary feeding among the children was the mother's educational level (odds ratio: 1.481, 95% confidence interval: 0.245-0.943). Conclusion: Complete complementary feeding, which involves a variety of food sources, is the best approach to improve the nutritional status of infants. Therefore, the source of food for complementary feeding must be accessible to all communities.

• 한국콘텐츠학회논문지
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• 제18권9호
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• pp.411-423
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• 2018

본 연구는 제7기 1차 년도 국민건강영양조사 원시자료를 이용하여 한국 성인의 자전거 음주운전과 차량 음주운전의 관련성 및 차량 음주운전에 미치는 영향요인을 파악하기 위한 서술적 조사 연구였다. 연구대상자는 3,385명이었고, 한국 성인의 음주운전 경험률은 7.8%였다. 한국 성인의 자전거 음주운전과 차량 음주운전은 통계적으로 유의한 차이가 있었고, 차량 음주운전의 영향요인은 자전거 음주운전, 유산소 신체활동, 1회 음주량, 폭음빈도, 음주운전 차량 동승횟수로 나타났다. 결론적으로 한국 성인의 차량 음주운전을 예방하기 위해 일상생활 및 직장생활에서 유산소 신체활동을 할 수 있도록 권장하고, 자전거 음주운전이 차량 음주운전으로 이어질 수 있음을 인식시켜야 하겠으며, 알코올 사용 장애자의 관리와 음주 전 차량운행에 대한 계획을 수립하는 것이 필요하다.

• 한국지역사회생활과학회지
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• 제23권3호
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• pp.347-356
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• 2012

This study was conducted to investigate pregnant women's experience about nutrition education for pregnant women in order to improve nutrition education programs. The questionnaires were distributed to 185 women with children whose age of under 24 months. About 46% of respondents participated in nutrition education for pregnant women. Major reasons for nonparticipation was 'no information(47%)' and 'lack of time(32%)'. About 40% of women attended to education operated by health centers, 34% maternity hospitals, 26% companies of formula or baby supplies. Participation rate in nutrition education showed significant differences(p<0.05) with age and household income. Women in their forties and with monthly income over three million Won showed higher rates than those of women in other groups. The subjects of education were nutrient supplements for pregnant women(21%), pregnancy complications and health(19%), abnormal symptoms of pregnancy and nutrition (18%), weight gain during pregnancy(17%), dietary guideline and directions for pregnancy (15%), relationship between nutrition of pregnant woman and baby's health(10%) in order. Teaching method which was used most frequently was lecture(35%). About 74% of women were not satisfied with the education. Nutrition management for pregnancy was the subject which pregnant women wanted to learn but not been taught enough. About 80% of women wanted more education and preferred personalized education such as personal counselling (30%), home visitation(26%), telephone(16%) and internet(15%) counselling. These results showed nutrition education for pregnant women was unhelpful for practical life. Therefore, nutrition education programs for pregnant women has to reflected pregnant women's individual needs to heighten the effectiveness of nutrition education.

• 대한영양사협회학술지
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• 제9권4호
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• pp.278-287
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• 2003

This study was performed to investigate nurses’ perception for nutrition education. The subjects of this study were 197 nurses and 94 nursing assistants working at hospitals in the Kyung-nam area. The survey was conducted by using a self-administered questionnaire in November, 2001. The results were as follows : Sixty-seven point seven percent of the subjects were nurse, 32.3% were nursing assistant. Average age of subjects was 26.9 years old, average nursing experience was 5.7 years, and 70.7% of the subjects graduated from a junior college. The average nutrition knowledge score was 14.3$\pm$2.5 out of possible 20 points. Seventy-four point two percent of the subject responded that nutrition education is very necessary for patient, and positive responses in the nurse were higher than that nursing assistant(p<0.001). Only 8.6% of the subjects had nutrition education training. The perceptions about a suitable person for nutrition counseling and nutrition education indicated dietitian(69.3%) and nurse(21.3%). Fifty-two point eight percent of the subjects responded that they would not participate in nutrition education themselves and the main reason for this was that they believed lack of expert knowledge(43.4%), and that such courses should be taught by specialist(40.5%). Forty-eight point eight percent of subjects had nutrition counseling experience for patient, and nurses, married nurses and those over 2 years of nursing careers had significantly higher nutrition counseling experience for patient than nursing assistant, unmarried nurses and those under 2 years of nursing careers(p<0.05-p<0.001)

• 한국식품영양학회지
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• 제24권4호
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• pp.732-739
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• 2011

본 연구는 학교급식에서 효율적인 인적자원관리를 위하여 변혁적 리더십이 학교급식 조리종사자의 직무만족과 조직몰입에 미치는 영향을 파악하고자 설문 조사를 실시하였다. 학교급식에 종사자는 89.0%가 여성, 연령은 40대 이상, 학력은 고졸 이하가 대부분이었다. 계약의 형태는 단기 또는 무기계약직으로 학교급식소의 평균 근무경력은 2년 6개월로 나타났다. 또한 본 연구의 사용된 측정도구는 Cronbach's alpha 계수값이 0.8 이상으로 안정적 신뢰도와 타당도 분석결과 60% 이상의 설명력을 보여주었다. 변수 간 상관관계 분석결과 변혁적 리더십, 직무만족, 그리고 조직몰입 간에 유의적 수준에서 정(+)의 상관관계를 보였다. 학교급식에서 영양(교)사의 변혁적 리더십이 직무만족과 조직몰입에 미치는 영향을 살펴보았을 때, 조리종사자를 대상으로 한 바람직한 변혁적 리더십 유형으로는 카리스마 리더십임을 확인할 수 있었다. 이는 학교급식에서 조리종사자의 직무의 특성으로 인해 상위관리자인 영양(교)사에게 많은 의존과 명령을 따라야 하는 업무특성으로 인한 결과로 볼 수 있겠다. 그러므로 학교급식을 운영하는데 있어서 조리종사자를 효율적으로 관리하기 위해서는 영양(교)사의 리더십을 카리스마 리더십 유형으로 특화하고 계발하고 이를 증진시키려는 노력이 필요하겠다.

• 한국식생활문화학회지
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• 제17권4호
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• pp.387-398
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• 2002

The purpose of the this study was to investigate the dietary behavior and the food habits of university freshman according to body mass index. Questionnaire were completed by 532 students in university freshman. The data were analyzed by SAS program. The results were as follows : The means of normal group's height, weight were $175.00{\pm}5.98cm,\;72.93{\pm}10.20kg$ for male students and $162.00{\pm}4.75cm,\;51.97{\pm}4.98kg$ for female students. Under 20 of BMI(body mass index) among students were 69.7% for male and 9.6% for female. $Twenty{\sim}twenty\;five(20{\sim}25)$ of BMI were 21.9% for male and 40.2% for female. The consumption of milk, oil and animal fat were significant according to BMI. There was high significant difference in the score of exercise and activity. In the self recognition of body shape 59.0% of male and 52.6% of female in normal weight group answered that their weight had to be a little thin. Self satisfaction rate was significantly higher in under weight group compared to normal weight group. This study suggest that a comprehensive nutrition education program is need for university students to improve desirable food habits and recognition of rate of figure.

• Nutrition Research and Practice
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• 제8권4호
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• pp.469-475
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• 2014

BACKGROUND/OBJECTIVE: The goal of the present study was to investigate the effects of moderate caloric restriction on ${\beta}$-cell function and insulin sensitivity in middle-aged obese Korean women. SUBJECTS/METHODS: Fifty-seven obese pre-menopausal Korean women participated in a 12-week calorie restriction program. Data on total cholesterol (TC), high density lipoprotein cholesterol (HDL-C), low density lipoprotein cholesterol (LDL-C), triglycerides (TG), and fasting serum levels of glucose, insulin, C-peptide, blood pressure, leptin and anthropometrics were collected. A dietary intake assessment was based on three days of food recording. Additionally, ${\beta}$-cell function [homeostasis model assessment of ${\beta}$-cell (HOMA-${\beta}$), insulinogenic index (ISI), C-peptide:glucose ratio, and area under curve insulin/glucose ($AUC_{ins/glu}$)] and insulin sensitivity [homeostasis model assessment for insulin resistance (HOMA-IR), Quantitative insulin-sensitivity check index (QUICKI) and Matsuda index (MI)] were recorded. RESULTS: When calories were reduced by an average of 422 kcal/day for 12 weeks, BMI (-2.7%), body fat mass (-10.2%), and waist circumference (-5%) all decreased significantly (P < 0.05). After calorie restriction, weight, body fat percentage, hip circumference, BP, TC, HDL-C, LDL-C, plasma glucose at fasting, insulin at fasting and 120 min, $AUC_{glu}$ and the insulin area under the curve all decreased significantly (all P < 0.05), while insulin sensitivity (HOMA-IR, QUICKI and Matsuda index) measured by OGTT improved significantly (P < 0.01). CONCLUSIONS: Moderate weight loss due to caloric restriction with reduction in insulin resistance improves glucose tolerance and insulin sensitivity in middle-aged obese women and thereby may help prevent the development of type 2 diabetes mellitus.