• Journal of Nutrition and Health
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• 제34권4호
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• pp.409-416
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• 2001

In order to evaluate the effect of habitual Na and Ca intake on blood pressure regulation, we measured the habitual dietary intakes of Na and Ca, urinary excretion of Ca, Na and K, and plasma level of renin activity, aldosterone, and indices of Ca metabolism in 27 untreated hypertensive women and 30 age-matched normal women on a free diet. Hypertensive and total subjects were divided into four groups according to habitual dietary intakes of Na and Ca as low Na-low Ca(LNLC), low Na-high Ca(LNHC), high Na-low Ca(HNLC), and high Na-high Ca(HNHC). HNLC hypertensive group showed the lowest level of plasma renin activity, 25-(OH) Vit D$_3$, calcitonin and serum total Ca, and presented the highest level of PTH and urinary excretions of Na/K and Ca/Cr. There were no significant difference in plasma level of aldosterone and urinary excretion of Na and K among four hypertensive groups. When all subjects were divided into four groups according to the same method, HNLC group showed the highest level of blood pressure with no statistical significance and the lowest level of calcitonin and total serum Ca. The above results indicated that renin-aldosterone system and Ca regulating hormone has a mutual relationship in hypertension. Na and Ca may interact each other, rather than affecting independently blood pressure control. As a result, considering the fact that daily balance of Na and Ca intakes affects Na and Ca regulating hormones and urinary excretion of Na and Ca, it may be involved in blood pressure control. These results suggest that maintaining an adequate intake of Ca with less intake of Na may prevent from the risk of hypertension. (Korean J Nutrition 34(4) : 409~416, 2001)

• 대한약학회:학술대회논문집
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• 대한약학회 2003년도 Proceedings of the Convention of the Pharmaceutical Society of Korea Vol.1
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• pp.190.2-191
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• 2003

Production of prostaglandins involved in renal salt and water homeostasis is modulated by regulated expression of the inducible form of cyclooxygenase-2 (COX-2) at restricted sites in the rat kidney. COX-2 expression in the kidney is regulated by dietary salt intake, but the mechanism of its action is not fully understood. We have previously that high salt regulates COX-2 expression in rat kidney. (omitted)

• Nutrition Research and Practice
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• 제9권2호
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• pp.199-206
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• 2015

BACKGROUND/OBJECTIVE: Even though the prevalence of metabolic syndrome in adolescents is increasing, little is presently known about this syndrome in adolescents. This study aimed to cluster metabolic risk factors as well as examine the associations between identified patterns and nutrient intake using data from the Korean National Health Examination and Nutritional Assessment (KNHANES). SUBJECTS/METHODS: A total of 2,958 subjects aged 10 to 18 years along with both biochemical and dietary data information were obtained from KNHANES 2007-2010. Six components of metabolic syndrome were used to identify any patterns via factor analysis. Individuals were categorized into quartile groups according to their pattern score. RESULTS: Three clustering patterns with high loadings were identified and named as follows: 1) high blood pressure, 2) dyslipidemia, and 3) glucose abnormality patterns. The high blood pressure pattern showed high loadings of systolic and diastolic blood pressures, the dyslipidemia pattern showed high loadings of triglyceride and HDL-cholesterol levels, and the glucose abnormality pattern showed high loadings of fasting blood glucose levels. Intakes of fat and riboflavin were significantly decreased, whereas those of sodium and niacin were significantly increased across the quartiles in the dyslipidemia pattern. No nutrient intake except that of thiamin was significantly associated with the high blood pressure or glucose abnormality pattern. CONCLUSION: Our findings show that metabolic syndrome risk factors in the Korean adolescent population are characterized by three distinct patterns, which are differentially associated with dietary factors. Characterizing metabolic risk factors and providing specific dietary guidelines for target groups are important.

• Journal of Nutrition and Health
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• 제39권8호
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• pp.841-849
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• 2006

This study compared the nutritional quality of Korean adults's consumption of lunch prepared at home, commercial places, and institutions. The one day food intake data collected via 24-hour recall in the 2001 National Health and Nutrition Survey were analyzed. Individuals with 19-64 years of age were selected (n = 5,756). Sampling weights in the Survey were used to generate nationally representative estimates. Lunch was categorized into three groups according to the place where the lunch was prepared. home, commercial places, and institutions such as schools and work places. Comparison among the three groups was made for 19-39 years old men (n = 1,387) and women (n =1,572) and 40-64 years old men (n = 1,364) and women (1,433), respectively. The lunch prepared away from home contained more calories. The lunch prepared commercially was higher in calories percentages from fat than that prepared either at home or at institutions. Across the age and gender groups, lunch prepared at home contribute a high level of sodium intake. Among individuals with 40-64 years of age, but not those with 19-39 years of age, lunch prepared commercially was as sodium dense as that prepared at home. Among individuals with 19-39 years of age, the sodium density of lunch prepared commercially was about the same as that prepared at institutional food service of which the menus were planned by dieticians. Such differences in nutritional quality among meals prepared at home, commercial places, and institutions should be considered and applied for the content development of nutrition education and policy.

• Journal of Nutrition and Health
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• 제49권5호
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• pp.335-346
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• 2016

본 연구는 만 19세 이상의 성인 20,926명을 중심으로 한식 국물 음식에 섭취에 따른 식생활 평가에 대한 연구를 수행하였다. 국물 음식 섭취에 따른 식생활 평가를 수행하기 위해 전체 국물 음식 섭취량과 국/탕 및 찌개/전골 섭취량으로 분류하였으며, 전체 국물 음식 섭취량은 4 분위수로 분류하였다. 국물 음식의 섭취가 가장 높은 Q4군의 특징을 살펴보면 성별의 경우 남성의 비율이 여성 비율보다 높았고, 연령층은 만 30~49세 연령, 기혼자이며, 가구 소득과 교육 수준이 높은 것으로 나타났다. 식생활 관련 요인들을 살펴보면 Q4군으로 갈수록 아침식사 결식의 비율이 낮아지며, 하루 1회 이상 외식하는 대상자의 비율이 높아지는 경향을 보였다. 또한, 국물 음식 섭취 4분위수 범위에 따른 영양소 섭취량에 대한 결과 지방을 제외한 모든 영양소 섭취량과 에너지 기여도의 비율 (지방의 에너지 기여된 비율 제외)이 Q1에서 Q4군으로 갈수록 유의적으로 증가하는 추이를 보였다. 식사가 제공된 조리 장소별 국물 음식 섭취량 역시 전체 국물 음식, 국/탕 및 찌개/전골 섭취량 모두 가정, 상업적 외식 및 단체 급식에서 Q1~Q4군으로 갈수록 섭취량이 유의적으로 증가하는 추이를 보였다. 마지막으로 국물 음식 섭취 4분위수 범위에 따른 식품 섭취량의 결과에서는 곡류, 서류, 두류, 견과류, 체소류, 버섯류, 과일류, 육류, 어패류, 우유/유제품류, 오일류 및 조미료류가 Q1 군에서 Q4 군까지 증가하는 추이를 보였다. 마지막으로 국물음식 섭취에 영향을 미치는 요인을 다중회귀분석을 통해 살펴본 결과 남성, 높은 연령, 기혼자와, 아침식사를 하는 경우, 간식을 섭취하는 경우, 가정식과 단체급식에서 제공된 식사를 하는 경우 및 주 당 평균외식 빈도와 에너지 및 나트륨 섭취가 증가할수록 전체적으로 국물음식 섭취에 정(+)의 방향으로 영향력을 보였다. 전체적으로 국물 음식 섭취가 증가함에 따라 영양소나 식품의 섭취량이 증가하는 것으로 보이는데 특히 나트륨의 섭취량은 각종 만성질환의 위험도와 관련이 높으므로 이에 대한 주의가 필요할 것으로 사료된다.

• Journal of Nutrition and Health
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• 제42권4호
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• pp.350-357
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• 2009

본 연구는 대구시 8개 병원과 사업체에 근무하는 직장인 251명을 대상으로 교육집단 166명, 비교육집단 85명으로 나누어 5주간 저염화 영양교육 프로그램을 운영하고 그 효과를 평가하였으며, 그 결과를 요약하면 다음과 같다. 1) 저염화 교육프로그램 실시 결과 교육전 두 집단간의 짠맛에 대한 미각판정치에 차이가 없었으나, 교육 후 교육집단의 경우 미각판정치가 유의하게 감소하였다 (p < 0.001). 또 한 교육 후 영양지식, 짜게 먹는 식태도 및 식행동이 비교육 집단에서는 유의한 차이가 없었으나 교육집단에서는 모두 유의하게 개선되었다 (p < 0.001). 2) 교육집단에서 24시간 소변 수집을 통한 나트륨 섭취량은 교육 전에 비해 교육 후 감소하였으나, 통계적으로 유의하지는 않았다. 3) 외식 빈도가 잦을수록, 외식비가 높을수록 짜게 먹는 경향이 있는 것으로 나타났으며, 미각판정치와 짜게 먹는 식행동 및 식태도간 유의한 상관관계를 나타내었다. 또한 짜게 먹는 식태도와 나트륨 섭취량간에 유의한 상관관계를 나타내어 식태도가 나쁠수록 나트륨 섭취량이 높은 것으로 나타났다.

• 대한지역사회영양학회지
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• 제8권2호
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• pp.202-219
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• 2003

The present study was conducted to evaluate the food and nutrients intakes of stomach cancer patients in the Daegu and Gyeongbuk areas in order to find out the dietary risk factors for stomach cancer. The subjects of the study were 102 patients who had recently been diagnosed with stomach cancer at the Gyeongbuk National University Hospital. The control subjects were 105 people including patients from the Department of Orthopedic Surgery and healthy volunteers who did not have any gastrointestinal diseases. Estimates of nutrients intakes were determined from the food intake frequency data obtained by individual interviews using questionnaires. The mean daily calorie intakes of the control and the case groups were not significantly different. However the energy intake from protein was significantly higher in the case group as compared to the control group. With regard to the nutrients intakes, the case subjects consumed significantly higher amounts of nutrients such as protein, calcium, sodium, phosphorus and niacin than the control group. The case group showed a tendency to consume higher amount of protein, fat, calcium and iron from animal food sources. In the present study dietary factors which were suspected as being risk factors for stomach cancer included high consumption of animal foods, specific nutrients such as protein, sodium and niacin, specific food groups such as meat, spices, and low consumption of fruits and mushrooms. Therefore, it is recommended that more extensive and systematic surveys be conducted to confirm the risk factors for stomach cancer, taking into consideration the dietary cultural characteristics of this region. (Korean J Community Nutrition 8(2) : 202∼219, 2003).

• Journal of Biosystems Engineering
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• 제35권5호
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• pp.310-315
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• 2010

The amount of salt intake of Korean people is 11.4 grams per a day, which is 2.3 times of the recommended daily salt intake by WHO - 5 grams of salt a day. The relationship between high salt consumption and increased risk of high blood pressure, observed not only in hypertensive but also in normotensive patients. High salt intake is also associated with an increased risk of heart attack, cerebral ischemia and osteoporosis. Therefore, this research is for developing a salt taste sensor to reduce sodium consumption and improve meal habits for the perception of a more bland taste of most foods. When the sensor was put into food sample, current intensity achieved with distribution cables. Current intensity was correlate with a simple equivalent of salt taste stimulus intensity. The salt taste sensor consists of salinity & temperature measuring probe, signal processing circuit and LCD display & LED warning light. When salinity is going over a set point, LCD displayer indicate salt taste on LCD panel by percent value (%), and at the same time, blue LED light change to red LED light. So we could know the grade of salt taste in soup before meals conveniently and objectively. The results show that operating range of 10 to $80^{\circ}C$ and accuracy of ${\pm}0.1%$ were achieved with an analysis time of about 2 or 3 sec. Moderate reductions in salt intake can help to avert adult diseases and lead a healthy life.

• 동아시아식생활학회지
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• 제9권3호
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• pp.378-385
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• 1999

A reduced NaCl intake for the general population of the world has been recommended to reduce the overall blood pressure level and hence to reduce the overall incidence of cardiovascular disease. A high NaCl diet convincingly contributes to elevated arterial pressure in humans and animal models of hypertension. Among individuals there is considerable variability of blood pressure responsiveness to NaCl intake. In normotensive as well as hypertensive subjects, blood pressure can be judged to be salt sensitivity (SS) when observed to vary directly and substantially with the net intake of NaCl. The prevalence of SS in normotensive adults in the U.S. ranges from 15% to 42% and in hypertensive adults from 28% to 74%. SS is a risk factor for hypertension and may be an important marker in the identification of children for hypertension prevention programs. High NaCl intakes produce expansion of the extracellular fluid volume and thus increase blood pressure. Nonchloride salts of sodium does not expand the extracellular fluid volume and does not alter blood pressure. Blood pressure response to NaCl may be modified by other components of the diet. Low dietary intakes of potassium or calcium augment NaCl-induced increases of blood pressure. Conversely, high dietary intakes of potassium or calcium attenuate NaCl-induced hypertension. A greater intakes of potassium or calcium may prevent or delay the occurrence of hypertension. SS occurs when dietary potassium is even marginally deficient but is dose-dependently suppressed when dietary potassium is increased within its normal range. Orally administered KHCO$_3$, abundant in fruits and vegetates, but not KCl has a calcium-retaining effect which may contributed to its reversal of pressor effect of dietary NaCl. Since nutrients other than NaCl also affect blood pressure levels, a reduced NaCl intake should be only one component of a nutritional strategy to lower blood pressure.

• 한국식품과학회지
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• 제36권5호
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• pp.804-811
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• 2004

시중에서 유통되고 있는 제품 중 사카린나트륨 및 아세설팜칼륨이 사용 가능한 대상식품인 빵 또는 떡류, 김치류, 음료류, 어육가공품, 건과류, 아이스크림류, 잼류 및 발효유류 등 46종 755품목을 대상으로 인공감미료 2종에 대한 사용실태를 파악하고 식이를 통해 실제 섭취되는 인공감미료의 총 섭취량을 조사하여 FAO/WHO의 ADI와 비교 검토함으로서 인공감미료의 실제 섭취량과 ADI간 안전수준평가 및 사용기준 개정시 기초 자료로 활용하고자 수행하였다. 따라서 분석된 결과를 기초로 식품유형별, 연령대별, 성별 및 인공감미료별 사용실태를 파악하고 국민영양조사자료에 근거하여 대상식품의 유형과 연령에 따른 인공감미료별 1인 1일당 추정섭취량을 산출하였으며 FAO/ WHO에서 설정한 ADI와 비교 검토한 결과, 총 검사건수 755건 중 57건의 인공감미료가 검출되어 7.6%의 검출율을 나타내었으며 인공감미료별 검출건수와 검출율은 각각 사카린나트륨 49건(6.5%) 및 아세설팜칼륨 11건(1.5%)으로 나타났다. 또한, 대상식품별 일일추정섭취량을 산출한 결과 사카린나트륨은 단무지에서, 아세설팜칼륨은 아이스크림에서 가장 높은 것으로 나 타났다. 연령별 ${\Sigma}EDI$는 1.89-4.91 mg/man/day의 범위로 13-19세에서 인공감미료 섭취가 가장 많았으며 65세 이상에서 가장 낮았다. 또한 각 인공감미료를 연령대별로 보면 사카린나트륨은 30-49세, 아세설팜칼륨은 13-19세에서 가장 섭취량이 많은 것으로 나타났다. 성별 ${\Sigma}EDI$는 남성은 5.91 mg/man/day, 여성은 4.89 mg/man/day으로 나타났다 국민영양조사표 등의 식품별 1인 1일당 섭취량과 인공감미료별 평균검출농도로부터 일일추정 섭취량을 산출하였을 때, 인공감미료별 ${\Sigma}EDI$는 사카린나트륨 4.13 mg/man/day, 아세설팜칼륨 1.25 mg/man/day로 각 인공감미료의 ADI를 국민평균체중 55 kg으로 환산한 275-825 mg/man/day와 비교하였을 때 매우 낮은 수치를 나타내었으며 이 결과는 ADI 대비 0.2-1.5% 수준이었고 사용가능 대상식품의 이론적 TMDI의 1.2-13.5%의 수준으로 사용대상식품을 통한 인공감미료의 섭취는 안전하다고 판단된다.