• Title, Summary, Keyword: 식이

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Effects of Dietary Salt Restriction on the Development of Renal Failure in the Excision Remnant Kidney Model (식이 sodium 제한 및 식이 sodium 제한에 따른 항고혈압제의 투여가 만성신부전증의 진행에 미치는 영향에 관한 실험적 연구)

  • Kim Kee-Hyuk;Kim Sang-Yun;Kang Yong-Joo;Maeng Won-Jae;Kim Kyo-Sun
    • Childhood Kidney Diseases
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    • v.3 no.2
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    • pp.170-179
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    • 1999
  • Purpose: To evaluate whether or not sodium restriction had its own beneficial effect and increased the efficiency of the anti-hypertensive drugs on the progression of renal failure. Methods: We studied using the excision remnant kidney model. Treatment groups were as follows: 5/6 nephrectomy and a 0.49% (normal-high) sodium diet (NN); 5/6 nephrectomy and a 0.25% (normal-low) sodium diet (LN); 5/6 nephrectomy, a 0.49% sodium diet and enalapril (NNE); 5/6 nephrectomy, a 0.49% sodium diet and nicardipine (NNN); 5/6 nephrectomy, a 0.25% sodium diet and enalapril (LNE); 5/6 nephrectomy, a 0.25% sodium diet and nicardipine (LNN). Both diets were isocaloric and had the same content of protein, phosphorus and calcium. Proteinuria, remnant kidney weight, mesangial expansion scores, and glomerular volume were assessed. Results: Blood pressure tended to be lower in LN compared to NN (P<0.05). NN developed progressive hypertension. LNE, LU, NNE, and NNN reduced blood pressure. LNE, LNN, NNE, NNN, and LN had significantly less proteinuria than NN at 16 weeks (P<0.05). At 24 weeks, LN developed proteinuria (82 mg/day), which were lessened in LNE (54 mg/day) and not lessened in LNN (76 mg/day). Mesangial expansion scores were significantly less in LN rats compared to those in NN rats. Glomerular volumes at 24 weeks in LN rats were significantly less compared to those at 16 weeks in NN rats. Mesangial expansion scores and glomerular volumes at 4, weeks, 12 weeks, and 24 weeks were not different among LN, LNE, and LNN groups. Conclusion: Dietary salt restriction lessens renal damage, at least in part, by inhibiting compensatory renal growth and reducing blood pressure. Enalapril was particularly successful in reducing proteinuria and glomerular injury when combined with dietary salt restriction.

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Dietary Fiber의 면역조절기능과 Short Chain Acid에 관한 연구

  • Im, Byeong-U;Jo, Yeo-Won
    • Bulletin of Food Technology
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    • v.15 no.3
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    • pp.84-91
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    • 2002
  • 식이 섬유질에는 여러 종류가 있고 그 종류에 따라 short chain fatty acid(SCFA)의 생산 등 생리작용도 크게 다르다. 식이 섬유질 중 수용성은 장내세균의 발효를 받아 butyrate, acetate, propionate 등의 SCFA를 생산한다. 수용성 식이 섬유질을 섭취함으로서 SCFA의 생산을 증가시키고 대장점막증식, 물.전해질 흡수 촉진, 혈류량을 증가시키는 작용 외에 면역조절 작용을 가지고 있다. 식이 섬유는 장관계 질환 중의 하나인 염증성 장질환 특히 궤양성 대장염의 치료법으로서 기대되고 있으며, 암세포 연구에서는 butyrate 가 apoptosis 유도작용과 발암유전자의 억제효과가 확인되고 있으나 역학 연구에서는 식이 섬유질에 의한 대장암 예방효과는 아직 불확실하다. 모든 유형의 식이 섬유질은 건강 식품으로서 사용되고 있으며, prebiotic으로서도 주목받고 있다. 또한 경장 영양제에도 각종의 식이 섬유질이 첨가되어 있다. 그러나 충분한 양의 비타민과 무기질을 함유한 고섬유질식과, 건강 식품으로서의 식이 섬유질을 같은 의미로 해석하기에는 여러 가지 문제가 남아 있다.

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Effects of Dietary Restriction on the Serum Lipid Level in OLETF Rats (식이 제한 급여가 OLETF 횐쥐의 혈청 지질량에 미치는 영향)

  • 이병래;차종희;박재윤;배학연;고춘남;박평심
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.30 no.6
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    • pp.1210-1214
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    • 2001
  • To determine the effects of dietary restriction on obese type 2 diabetes we measured body weight, blood glucose and serum lipid level in dietary restricted Otsuka Long Evans Tokushima Fatty (OLETF) rats. OLETF rats (obese diabetic rats) and LETO rats (control rats) were grouped into 3 groups; control (free feed) group, 20% dietary restricted (20% DR) group and 40% dietary restricted (40% DR) group. Body weight of rats was measured every weeks and the level of glucose, triglyceride (TG), total cholesterol (TC) and HDL-cholesterol in blood of rats were also determined at 12 weeks after dietary restriction. Body weight of control, 20% DR and 40% DR groups were increased by 41%, 20% and 10%, respectively in LETO rats and by 24%, 10% and -2%, respectively in OLETF rats. Blood glucose level of LETO rats were decreased by 12% on 40% DR compared to control group but the differences between control group and 20% DR group was not observed. The blood glucose level of OLETF rats were decreased by 20% in 40% DR group and by 15% in 20% DR group. The levels of blood triglyceride in 20% DR and 40% DR group were decreased by 20%, 15% in LETO rats and by 37%, 32% in OLETF rats, respectively Total cholesterol revel was not changed by dietary restriction in LETO rats, but significant changes were observed in OLETF rats by both 20% and 40% dietary restriction. HDL-cholesterol levels were also increased by dietary restriction in both LETO and OLETF rats. These results suggested that body weight and blood glucose, serum triglyceride and total cholesterol levels were decreased by dietary restriction and these changes are more susceptive in diabetic rats than non-diabetic animals.

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작지만 알찬 사업, 수동식자판기 시장

  • 한국자동판매기공업협회
    • Vending industry
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    • v.4 no.4
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    • pp.85-89
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    • 2004
  • 자판기를 분류할 때 보통 해당 내용상품을 기준으로 한다. 커피가 판매가 되면 커피자판기, 캔음료가 판매가 되면 캔자판기, 이런 식이다. 그런데 그 내용상품을 판매하는데 전기가 들어가느냐, 전기 없이 인력으로 작동할 수 있느냐에 따라서도 품목분류가 된다. 이렇게 자판기를 분류하면 전동식과 수동식 자판기로 양분이 된다. 전동식자판기는 자판기 분야의 메이저리그라 할 정도로 집중적인 스포트라이트를 받아 왔음에 비해, 수동식자판기에 대한 관심도는 상대적으로 떨어진다. 내용상품을 적용이나 가격세팅 등에 있어 한계가 있고, 제품자체도 전동식에 비해 조악하기 때문이다. 그렇지만 수동식자판기도 전동식과는 차별화된 영역으로 당당한 산업의 한축을 차지하고 있다. 비록 마이너리그 격이기는 하지만 산업의 한 분야로서 무시 못 할 비중으로 그들만의 리그를 형성하고 있다. 전동식은 따라오기 힘든 높은 운영효율을 보이는 수동식자판기 분야가 엄연히 존재하며, 투자부담이 상대적으로 적은 사업대상 영역으로서의 가치도 최근 증가하고 있다. 금호 테마기획에서는 작지만 알찬사업, 수동식자판기 시장의 그 오밀 조밀한 세계를 조명해 봤다.

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Postprandial Plasma Lipid Levels and Digestive Enzyme Activities After High Fat Meal in Rats Adapted to Dietary Fiber (식이섬유 식이에 적응된 흰쥐에서 고지방식이가 식후 혈장지질농도와 소화효소활성에 미치는 영향)

  • 양정례;서명자;송영선
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.26 no.1
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    • pp.116-122
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    • 1997
  • Rats were adapted to diets containing 10% cellulose,10% sodium alginate and fiber-free diet for 5 weeks. Following a 14 hour fasting, rats were fed 5g of a test meal that provided 50% energy from fat, then killed at 4 hour postprandially. Plasma and lipoprotein fraction-cholesterol levels were lower in sodium alginate-fed animals than in rats fed other diets. Plasma TG did not differ among diet treatments. Increase in TG content of HDL fraction occurred in dietary fiber groups. Intestinal apolipoprotein B level and lipase activity were lower in sodium alginate-fed group than in other dietary groups. These results suggest that chronic consumption of sodium alginate affects plasma cholesterol level as in the case of fiber supplemetation, but is less likely to modify the acute Plasma TG response to high fat meal than if a fiber supplement is incorporated into the meal.

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Application of the Modified Rational Formula for the Estimation of Peak Flood Discharge (첨두홍수량 산정을 위한 수정합리식의 적용)

  • Park Kyo;Yi Choong Sung;Kim Hung Soo;Shim Myung Pil
    • Proceedings of the Korea Water Resources Association Conference
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    • pp.699-704
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    • 2005
  • 합리식(rational formula)은 일정한 강우강도를 갖는 호우로 인한 소유역의 첨두홍수량을 결정할 때 대표적으로 사용되고 있다. 기존의 합리식 틀 안에서 유역의 기하학적인 형상이 타원의 형태와 비슷하다면 유역의 형상을 고려한 수정된 합리식으로 첨두홍수량을 결정할 수 있다. 수정된 합리식에서는 강우가 전체 지속시간 동안 유역에 균등하게 분포한다는 기존의 합리식의 가정과는 달리 강우가 유효우량주상도의 각 시간간격에 균등하게 분포한다고 가정한다. 이러한 가정은 강우 지속시간이 도달시간 보다 작은 경우에도 합리식을 적용할 수 있음을 나타낸다. 따라서 본 연구에서는 유역의 기하학적인 형상이 타원형에 가까운 예곡천 유역에 합리식과 수정합리식을 적용 한 후 그 결과를 비교 분석하였다. 그 결과 수정합리식에의한 첨두유량이 합리식보다 상당히 적게 산정되었다. 이는 합리식이 식생이 발달한 투수유역에서 첨두유량을 과다 산정한다는 기존 연구결과와 일치하는 것이다. 따라서 수정합리식은 합리식 가정의 한계를 보완하면서 비교적 단순한 프로세스를 유지하고 있어 조건이 부합되는 소유역에서 유용할 것으로 판단되었다.

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Boolean Factorization Using Two-cube Non-kernels (2-큐브 비커널을 이용한 부울 분해식 산출)

  • Kwon, Oh-Hyeong;Chun, Byung-Tae
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.11 no.11
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    • pp.4597-4603
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    • 2010
  • A factorization is a very important part of multi-level logic synthesis. The number of literals in a factored form is an estimate of the complexity of a logic function, and can be translated directly into the number of transistors required for implementation. Factored forms are described as either algebraic or Boolean, according to the trade-off between run-time and optimization. A Boolean factored form contains fewer number of literals than an algebraic factored form. In this paper, we present a new method for a Boolean factorization. The key idea is to identify two-cube nonkernel Boolean pairs from given expression. Experimental results on various benchmark circuits show the improvements in literal counts over previous other factorization methods.

Effects of Dietary Protein and Calcium Levels on Hematological Properties and Renal Functions of the Pb-administered Rats. (식이내 단백질과 칼슘의 수준이 납중독된 흰쥐에 혈액학적 성상 및 신기능에 미치는 영향)

  • 이정숙;조수열
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.20 no.4
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    • pp.337-345
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    • 1991
  • This study was designed to investigate the effects of dietary protein ana calcium levels on hematological properties and renal functions of the Pb-administered rats. Male Sprague-Dawley rats were assigned to a 3$\times$3$\times$2 factorial design with 3 levels of protein (40%, 16%, 6%), 3 levels of Ca (1.2%, 0.6%, 0.12%) and 2 feeding Periods (3 and 7 Weeks). The Control group was included separately, The rats were exposed to the drinking water containing 2, 000ppm of lead. Hematocrit, hemoglobin content and RBC count were lower in the Pb-added groups than in the control group and were reduced with decreasing dietary protein and Ca levels. Urinary-aminolevulinic acid was higher in the Pb-added groups than in the control group and increased with decreasing dietary Ca level. However, urinary glucose was higher in the Pb-added groups than in the control group and enhanced with decreasing dietary protein and Ca levels. Creatinine celarance was not affected by the Pb administration when the rats fed the diet containing sufficient protein and Ca.

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Logic Substitution Using Addition and Revision of Terms (항추가 및 보정을 적용한 대입에 의한 논리식 간략화)

  • Kwon, Oh-Hyeong
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.18 no.8
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    • pp.361-366
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    • 2017
  • For two given logical expressions and, when expression contains the same part of the logical expression as expression, substituting for that part of expression is called a substituted logic expression. If a substituted relation is established between the logical expressions, there is an advantage in that the number of literals used in the whole logical expression can be greatly reduced. However, if the substituted relation is not established, there is no simplification effect obtained from the substituted expression. Previous methods proposed a way to find substituted relations between logical expressions for the given logical expressions themselves, and to calculate substituted expressions if only substitution is possible. In this paper, a new method for performing substitution with addition and revision of logic terms is proposed in order to perform substitution, even though there is no substituted relation between two logic expressions. The proposed method is efficiently implemented using a matrix that finds terms to be added. Then, by covering the matrix that has added terms, substituted logic expressions are found. Experiment results show that the proposed method for several benchmark circuits can reduce the number of literals, compared to existing synthesis tools.

A Convergence Study on Effects of Nutrition Knowledge, Dietary Habits, and Dietary Self-Efficacy on Dietary Behavior in Nursing Students (간호대학생의 영양지식, 식이 자기효능감 및 식습관이 식행동에 미치는 영향에 관한 융합연구)

  • Lee, Eun-Sook;Kim, BoYoung
    • Journal of the Korea Convergence Society
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    • v.11 no.2
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    • pp.341-350
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    • 2020
  • This study is a descriptive study to identify nutritional knowledge, diet self‐efficacy and dietary habits of nursing college students and to investigate the factors affecting their dietary behavior. Data collection was conveniently sampled from June 18 to June 20, 2018, for 123 second‐year students at two University located in G City. The data collected were analyzed by descriptive statistics, t‐test, ANOVA, Scheff, Pearson's correlation, and multiple regression using the SPSS 20 program. In the results of the study, factors affecting the dietary behavior of the subjects were found to be school life satisfaction, overeating and snacks frequency, and diet self‐efficacy (adjusted R2=0.48, F=10.28, p<.001). The results of this study have implications that based on factors affecting dietary behavior of nursing students, nursing intervention programs should be developed to promote diet self‐efficacy and to be able to develop healthy dietary habits.