• Title, Summary, Keyword: total diet study

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The Effect of Panax Ginseng on the Some Components of Rat by Alternating the Diet. (교체급식에 의한 인삼분 첨가식이가 백서의 체성분에 미치는 영향)

  • 이성동
    • Journal of Ginseng Research
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    • v.7 no.1
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    • pp.1-12
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    • 1983
  • This study was divised to observe the effects of ginseng on the body components of Sprague-Dowley Albino male rats by alternating the diet. Just weaned rats (130 heads, weighing(83 ${\pm}$ 4g) were fed with each stock diets supplemented with 0.5, 1.0 or 3.0% ginseng powder for 4 weeks or 8 weeks, and after that fed with stock diet only for 8 or 4 weeks. Compared with the each corresponding group which was fed with ginseng control diet, the protein, total lipid, total cholesterol and free cholesterol contains in serum, liver and aorta of them were determined. The results obtained was summarized as follows ; Protein and total lipid contents of the rat were decreased, caused by the alternating diets, but total cholesterol and free cholesterol contents were increased in the serum, protein and free cholesterol contents increased, conversely total lipid contents decreased in the liver, and in aorta total lipid and total cholesterol contents decreased, In the view of the above results, it can be seen that the alternating diet (stock diet after feeding with ginseng diet) has an influence on the body components of rat.

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Effect of Chlorella vulgaris on lipid metabolism in Wistar rats fed high fat diet

  • Lee, Hee-Sun;Park, Hoon-Jung;Kim, Mi-Kyung
    • Nutrition Research and Practice
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    • v.2 no.4
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    • pp.204-210
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    • 2008
  • This study was performed to investigate effects of Chiarella vulgaris on lipid metabolism in rats fed high fat diet. Sixty 6-week-old male Wistar rats were divided into two groups; normal diet group and high fat diet group, then the rats in each group were further divided into three subgroups and fed 0%, 5% and 10% (w/w) chlorella-containing diets, respectively, and raised for 9 weeks, Serum aspartate aminotransferase (AST) and alanine aminotransferase (ALT) activity and total protein and albumin concentration were not different among groups. Serum total lipids and liver TG concentration were significantly lower in 5% and 10% chlorella groups than 0% chlorella group in high fat diet groups (p<0.05). Serum TG, serum total cholesterol, liver total lipid and liver total cholesterol concentrations were significantly lower in 10% chlorella groups than 0% chlorella group in high fat diet groups (p<0.05). Fecal total lipid, TG and total cholesterol excretions were significantly higher in 5% and 10% chlorella groups than 0% chlorella groups in normal diet and high fat diet groups, respectively (p<0.05). These results suggest that Chlorella vulgaris is effective for prevention of dyslipidemia which may be due to the modulation of lipid metabolism and increased fecal excretion of lipid.

Effects of Lowering the Dietary Levels of Energy, Protein and Amino Acid (Methionine and Cysteine) on the Performance of Laying Hens

  • Serpunja, Subin;Balasubramanian, Balamuralikrishnan;Kim, In Ho
    • Korean Journal of Poultry Science
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    • v.44 no.2
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    • pp.67-73
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    • 2017
  • The purpose of our study was to determine the effects of varying levels of energy, protein, and amino acids on the performances of laying hens. A total of 240 Hy-Line Brown laying hens at 36 weeks of age were used in this 4-week feeding trial. The hens were randomly allocated to five treatment diets, with eight replications of six hens in each replicate cage. The treatment diets were as follows: A- basal diet + 18% crude protein, metabolizable energy 2,800 kcal, total (methionine + cysteine) 0.65%; B- basal diet + 17% crude protein, metabolizable energy 2,700 kcal, total (methionine + cysteine) 0.59%; C- basal diet + 16.5% crude protein, metabolizable energy 2,700 kcal, total (methionine + cysteine) 0.59%; D- basal diet + 16.5% crude protein, metabolizable energy 2,700 kcal, total (methionine + cysteine) 0.54%; and E- basal diet + 16% crude protein, metabolizable energy 2,680 kcal, total (methionine + cysteine) 0.54%. The study results revealed that the hen-day egg production of hens that were fed with low-energy diets (B, C, and D) was comparable with that of hens fed with high-energy diet A, whereas average daily feed intake in hens fed treatment diet D and E was significantly higher (P<0.05) than that in hens fed treatment diet A. Overall, the eggshell thickness was unaffected by any of the treatment diets. Egg weight was comparable among the treatment diets, except for treatment diet E. Haugh unit improved with decreasing levels of dietary energy, protein, and methionine + cysteine in the diet. We can summarize that laying hens fed with low dietary energy and low crude protein treatment diets B, C, and D had satisfactory performance compared with those fed with high-energy treatment diet A. This indicates that there is the potential to reduce feed costs by formulating diets with lower energy and low protein levels.

The Effect of Medium Chain Triglyceride Diet on the Serum Lipids and Lipoprotein Levels of Rats Fed with Cholesterol (Medium Chain Triglyceride첨가(添加) 식이(食餌)가 Cholesterol투여(投與) 흰쥐의 혈중(血中) 지질(脂質) 및 Lipoporotein에 미치는 영향(影響))

  • Lee, Yong-Ock;Cha, Jae-Seon
    • Journal of the Korean Applied Science and Technology
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    • v.1 no.1
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    • pp.11-21
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    • 1984
  • The purpose of the study was to find an effect of medium chain triglyceride (MCT)diet on the serum lipids and lipoprotein of Sprague-Dawley rats when the were fed with cholesterol. All experiment-groups were fed with different diet such as soybean oil, shortening,MCT and MCT mixed with oil respectively. After fed to each group, the levels of serum lipids and lipoprotein among fed rats were examined and the data from the experiment were compared with a control group. The results obtained from the study are as follows : (1) The average boby weight gain in MCT diet and soybean oil diet groups were lighter than that of the control group, while the food efficiency ratio in each experimental diet group was almost same as than in the control group. (2) Total cholesterol levels in serum of all experimental diet groups were lower than that of the control group except the level in shortening diet group. Especially, the levels of total cholesterol in MCT diet and soybean oil diet groups were significantly lower than that of the control group. (3) VLDL, LDL-cholesterol levels of all experimental groups were almost same except the case of the MCT diet and soybean oil diet group which was significantly low. (4) The ratio of VLDL, LDL-cholesterol to HDL-cholesterol, so called, atherogenic index in serum of MCT and soybean oil diet groups were significantly lower than that of the control group. (5) The ratio of total cholesterol to phospholipids in serum of MCT diet group was decreased, because total cholesterol levels were decreased more than phospolipid levels. (6) The ratio of the serum VLDL, LDL to HDL in MCT diet group. in MCT and soybean oil mixed diet group, and in soybean diet group was decreased. In other wards, it means that the decrease of the serum VLDL, LDL in each group and the increase of the serum HDL.

Establishment of the Korean total diet study (TDS) model in consideration to pesticide intake (한국형 총식이섭취조사(Total Diet Study, TDS) 모델 확립을 위한 농약섭취수준에 대한 접근)

  • Yang, An-Gel;Shim, Ki-Hoon;Choi, Ok-Ja;Park, Jong-Hyouk;Do, Jung-Ah;Oh, Jae-Ho;Hwang, In Gyun;Shim, Jae-Han
    • The Korean Journal of Pesticide Science
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    • v.16 no.2
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    • pp.151-162
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    • 2012
  • This study was carried out to establish Korean total diet study (TDS) model for estimating pesticide residue in food samples. In addition, pesticide residues of food samples were monitored by setting the standards of established Korean total diet study model. For monitoring, first step were selection of total 102 species food samples, second step were selection of total 70 species food samples, and third step were selection of total 12 representative diet and 109 species food samples. Ninety-eight pesticides were analyzed using $GC-{\mu}ECD$, GC-MS, and LC-MS/MS after QuEChERS sample preparation method. The residue levels in detected food samples were below the maximum residue limit (MRL). Establishment of the Korean total diet study model means providing safe food for consumers, secure the safety of food samples and provide ongoing information to agricultural producers about use of pesticides.

An association between diet quality index for Koreans (DQI-K) and total mortality in Health Examinees Gem (HEXA-G) study

  • Lim, Jiyeon;Lee, Yunhee;Shin, Sangah;Lee, Hwi-Won;Kim, Claire E;Lee, Jong-koo;Lee, Sang-Ah;Kang, Daehee
    • Nutrition Research and Practice
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    • v.12 no.3
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    • pp.258-264
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    • 2018
  • BACKGROUND/OBJECTIVES: Diet quality scores or indices, based on dietary guidelines, are used to summarize dietary intake into a single numeric variable. The aim of this study was to examine the association between the modified diet quality index for Koreans (DQI-K) and mortality among Health Examinees-Gem (HEXA-G) study participants. SUBJECTS/METHODS: The DQI-K was modified from the original diet quality index. A total of 134,547 participants (45,207 men and 89,340 women) from the HEXA-G study (2004 and 2013) were included. The DQI-K is based on eight components: 1) daily protein intake, 2) percent of energy from fat, 3) percent of energy from saturated fat, 4) daily cholesterol intake, 5) daily whole-grain intake, 6) daily fruit intake, 7) daily vegetable intake, and 8) daily sodium intake. The association between all-cause mortality and the DQI-K was examined using Cox proportional hazard regression models. Hazard ratios and confidence intervals were estimated after adjusting for age, gender, income, smoking status, alcohol drinking, body mass index, and total energy intake. RESULTS: The total DQI-K score was calculated by summing the scores of the eight components (range 0-9). In the multivariable adjusted models, with good diet quality (score 0-4) as a reference, poor diet quality (score 5-9) was associated with an increased risk of all-cause mortality (hazard ratios = 1.23, 95% confidence intervals = 1.06-1.43). Moreover, a one-unit increase in DQI-K score resulted in a 6% higher mortality risk. CONCLUSIONS: A poor diet quality DQI-K score was associated with an increased risk of mortality. The DQI-K in the present study may be used to assess the diet quality of Korean adults.

The Effect of Dietary Calcium Level on Bone Mineral Density and Bone Mineral Content in Ovariectomized Female Rats (난소절제한 흰쥐에서 식이칼슘량이 골밀도에 미치는 영향)

  • 김경희
    • Journal of Nutrition and Health
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    • v.29 no.6
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    • pp.590-593
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    • 1996
  • This study was done to evaluate the effect of dietary calcium level (a diet which met 100% or twice the calcium level in AIN-76 diet) on preventing bone loss in ovariectomized rats. Forty Sprauge-Dawley female rats(body weight 200$\pm$5g)were divided into two groups. One group were ovariecotomized (Ovx) while the others received sham operation(Sham). Thereafter, each rat group was further divided into normal calcium diet(0.52%) and high calcium diet(1.04%) subgroups. All rats were fed on experimental diet and deionized water ad libitum for 8 weeks. The total body, spine and femur bone mineral densities and bone mineral contents were measured by Dual Energy X-ray Absorptiometry, Eight weeks following operation, ovariectomized rats fed a high calcium diet had a significantly higher total bone mineral content, total bone calcium content, spine bone mineral density, spine bone mineral content and femur bone mineral content than ovariectomized rats fed control calcium diet. The correlation between dietary calcium intake level and spine bone mineral density were positive, but there was no correlation between dietary calcium intake and femur bone mineral density. The findings from the present study demonstrated that bone loss due to ovarian hormonal deficiency can be partially prevented by a high calcium diet. Futhermore, these findings support the strategy of the use of a high calcium diet in the prevention of estrogen depleted bone loss(postmenopausal osteoporosis)

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The Effects of Shellfish Hydrolysates on Lipid Metabolism in Rats Fed High-Fat Diet (고지방식이를 급여한 흰쥐의 패류가수분해물 급여 효과)

  • 김은미
    • Journal of Nutrition and Health
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    • v.33 no.4
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    • pp.386-394
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    • 2000
  • This study was conducted to investigate the effects of shellfish hydrolysate on lipid metabolism in rats fed high fat diet. Male Sprague-Dawley rate weighting approximately 110g were fed basal control diet, high fat diet and high fat diet plus 4 different shellfish hydrolyates for 4 weeks. The shellfish hydrolysates from the different sources, were oyster, hard-shelled mussel, little neck clam and march clam. After 4 weeks, serum GOT, GPT, ${\gamma}$-GTP, triglyceride and total cholesterol was significantly decreased in shellfish hydrolysates supplementation with high fat diet compared to basal control and high-fat group(p<0.05). The total lipid and cholesterol content in liver showed significant decrease(p, 0.05). There were no different in serum GPT, HDL-cholesterol, liver total cholesterol and lipid of rats between basal control diet and high-fat diet. The unsaturated fatty acids, specific components of shellfishes were a little components in shellfish hydrolysate as they were a low and not different among the groups and were most well reflected in liver and plasma. Considering digestive and absorptive process of in human body, it was assumed that the hypolipidemic effect of shellfish was not under the influence of unsaturated fatty acids but the other components, peptides, taurine and betaine and so on was detected in the process of hyperlipidemia induced by high-fat diet.

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The Effect of Grape Diet on Weight Control Serum Components in Korean Overweight Female College Students (포도 식사가 일부 과체중 여대생들의 체중조절과 혈액성상에 미치는 영향)

  • 박귀선
    • Journal of Nutrition and Health
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    • v.30 no.7
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    • pp.825-831
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    • 1997
  • This study was to investigate the effect on weight control and changes in serum glucose, total protein , GPT, GOT , cholesterol, triglyceride, calcium, and phosphorus contents of seventeen overweight female college students during experimental periods [before grape diet(0 day-, after grape diet (3 day), after control diet(3 day), after normal diet(30 day)]. The mean weight, height , BMI, and Rohrer index of the subjects at the onset of the study was 58.91$\pm$5.22kg, 159.94$\pm$6.01cm, 22.96$\pm$1.17, and 20.06$\pm$1.48 respectively. During the study subjects, conducted grape diets, control diets, and normal diets to control their weight. They analyzed their changes in anthrophometric variables. The mean weight was significantly decreased from 58.29$\pm$7.85kg to 57.2$\pm$8.23kg after normal diet(p<0.05). Therefore BMI (body mass index) and Rohrer index was also significantly decreased after experimental periods. The analysis of dietary intake showed that the grape diet induced unbalanced low nutrient intake, but the intake of total calories and other nutrients were almost recovered their onset of the study during control and normal diets. The concentration of serum glucose, cholesterol, triglyceride GOT, and GTP were significantly(p<0.05) decreased and significantly(p<0.05) increased again during experimental periods. Calcium concentrations were not affected by grape diet, but phosphorus concentration was significantly reduced after grape and control diet.

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The Effect of Dietary Calcium Level on Biochemical Variables of Bone Metabolism in Ovariectomized Female Rats (식이 칼슘량이 난소 절제한 흰쥐에서 골대사 지료에 미치는 영향)

  • 최미자
    • Journal of the East Asian Society of Dietary Life
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    • v.6 no.3
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    • pp.295-305
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    • 1996
  • This study was done to evaluate the effectiveness of dietary calcium level(a diet which met 100% or twice the calcium level in AIN-76 diet) on preventing bone loss in ovariectomized rats. Forty female Sprauge-Dawley rats(body weight 200$\pm$5g) were divided into two groups. One group were ovariectomized(Ovx) while the others received sham operation(Sham). Thereafter, each rat group was further divided into normal calcium diet(NCD, 0.52%) and high calcium diet(HCD, 1.04%) sub-groups. All rats were fed on experimental diet and deionized water ad libitum for 8 weeks. Urinary pyridinoline & creatinine and serum estradiol, luteinizing hormone, calcium, phosphate, total protein, albumin, alkaline phosphatase and osteocalcin were determined. There were no significant differences in serum calcium. total protein and albumin in the two groups(Ovx vs Sham) of rats. Ovariectomized rats had significantly lower estradiol than sham operated rats. There was a highly significant correlation between total bone mineral density(TBMD) and overall level of esteradiol(r=0.59, p<0.05). Total bone mineral density did not correlate significantly with ALP or osteocalcin, although a negative trend was evident. However, the rats fed high calcium diet had a lower crosslinks value and osteocalcine than the rats fed normal calcium diet. An increased rate of bone turnover is usually associated with a decrease in bone mass bexause bone formation at each remodeling site is never as great as resorption. Ovariectomized rats fed high calcium diet had a lower crosslink value and osteocalcin; it means high cacium diet decreased bone turnover rate. The findings from the present study demonstrated that bone loss due to ovarian hormonal deficiency can be partially prevented by a high calcium diet. Futhermore, these findings support the strategy of the use of a high calcium diet in the prevention of estrogen depletion bone loss (postmenopausal osteoporosis).

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