• Journal of Nutrition and Health
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• 제26권8호
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• pp.925-932
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• 1993

To study the effects of dietary protein and magnesium level on serum lipid contents and enzyme activities, male Sprague-Dawley rats were divided into six groups. Six groups of animals were fed six experimental diets different with protein(8% and 20%) and magnesium levels (Mg-free, 400mg/kg diet and 800mg/kg diet). The serum lipid contents and enzyme activities of rats fed different dietary protein and magnesium levels were examined. Serum triglyceride contents was significantly decreased as the dietary magnesium level was increased. Serum phospholipid contents was significantly higher in magnesium deficient group than those in the other groups. Serum alkaline phosphatase activity was significantly decreased in magnesium dificient group compared with other groups, but serum glutamic oxaloacetic transaminase and glutamic pyruvic transaminase activities was significantly increased in magnesium dificient group than other groups. In conclusion, serum triglyceride contents in low protein level was remarkably decreased as the dietary magnesium level was increased.

• Journal of Nutrition and Health
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• 제26권8호
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• pp.933-941
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• 1993

The present study was carried out to investigate the effects of magnesium supplement levels and periods on lipid metabolism in male Sprague-Dawley rats given low protein and magnesium deficient diets. The effect of magnesium supplement levels and periods on lipid metabolism in rats given a low protein and magnesium deficient diet for 2 weeks were investigated. Serum total lipid and triglyceride contents were significantly lower in magnesium supplement group compared with magnesium deficient group. Serum HDL-cholesterol/total cholesterol ratio was significantly increased as magnesium supplement level was increased. Liver total lipid, triglyceride, total cholesterol and phospholipid contents were significantly lower in magnesium supplement group than those in magnesium deficient group. Serum ALP, GOT and GPT activities were significantly decreased in magnesium supplement group compared with magnesium deficient group. In summary, the effect of magnesium supplement on lipid metabolism and enzyme activities were significant and we can see that magnesium supplement level propered to be requirement level(400 mg/kg diet)in the other cases except serum lipid contents.

• Journal of Nutrition and Health
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• 제31권1호
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• pp.102-107
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• 1998

This study was conducted to investigate the relationship of serum calcium and magnesium levels to depression and anxiety symptoms in 80 homemarker. Fasting blood samples were collected and serum calcium and magnesium concentrations were measured. At the same time, psychological conditions of subjects were estimated by questionnaire. As the result of psychological test, eighty homemarkers were divided into two groups according to psychologicaltest scores. The subjects in one group got high pssycholgoical test scores as high score group (HSG) and the others got low physchological test scores as low score group(LSG). Serum calcium and magnesium concentrations were significantly(p<0.05) lower in HSG than in HSG than in LSG. Many a subject who belonged to HSG appeared to have depression and anxiety symptoms. Drepression and anxiety scores of the subjects with calcium supplementation were significantly (p<0.05) lower than those without calcium supplementation . After calcium supplementation, depressiion and anxiety scores were significantly (p<0.05) decreased in HSG and serum calcium and magnesium concentrations in HSG were significantly increased to normal ranges . This results suggested that psychological conditions of homemarkers might be affected by serum calcium and magnesium levels.

• 동아시아식생활학회지
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• 제10권6호
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• pp.495-506
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• 2000

The purpose of this study was to assess the nutritional status of iron and magnesium and the effect of von supplementation during 8 weeks(from 20 to 28 weeks of gestation) on serum iron and magnesium status of 31 pregnant women in Kyunsin area. The age, weight, and height of the subjects before pregnancy were investigated by questionnaires. At 20 and 28 weeks of gestation, data for food and nutrient intake were obtained by questionnaires and serum sample was obtained. According to the frequency of iron supplementation, subjects were divided into two groups(4$\geq$/wk) The mean iron supplementation of 5 $\geq$/wk group(63.mg/day) was significantly higher than 4$_2$ intakes were much less than the Korean RDA. Especially, calcium, iron and magnesium intakes showed half the levels compared with Korean RDA. At 28 weeks of gestation the serum total protein(p<0.001), albumin(p<0.01) and globulin(p<0.001) were significantly decreased. Total iron binding capacity(TIBC) was significantly increased(P<0.001), but serum ferritin(p<0.01) and magnesium(p<0.01) concentrations were significantly decreased. However, even 28 weeks of gestation 5$\geq$/wk group showed higher serum iron and ferritin concentration and lower TIBC than 4$\geq$/wk group. Therefore, iron supplementation should be conducted with concerning the mineral balance like magnesium.

• 대한수의사회지
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• 제14권2호
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• pp.95-104
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• 1978

The author studied the effect of various dietary constituents on the serum total cholesterol and magnesium levels of rabbits, and discussed the correlation of these serum constituents in relation to dietary factors. 1) Massive administration of the animal

• 한국식품영양과학회지
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• 제25권4호
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• pp.601-607
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• 1996

Nineteen non-insulin-dependent diabetic(NIDD) and healthy control women were investigated to study the relationship between glycemic control and the level of calcium, zinc, and magnesium in the serum and urine. Urinary calcium, zinc and magnesium levels in the NIDD women were significantly higher(p<0.01) than those of the control women. There were no difference in serum magnesium and zinc levels between the two groups, but se겨m calcium level was lower(p<0.01) in the NIDD women compared to that of the control group. In the NIDD women, serum magnesium was negatively related to fasting blood glucose(r=-0.533 : p<0.05), urinary glucose(r=-0.767 ; P<0.001), urinary protein(r=-0.476 : p<0.05), and urine volume(r=-0.571 : p<0.05). The levels of zinc in both serum (r=0.515, p<0.05) and urine(r=0.623 : p<0.01) were related to urinary protein but only urinary zinc level(r=0.570 : p<0.01) was related to serum albumin. Urinary magnesium, not calcium was correlated with the urinary glucose(r=0.563 : p<0.05) and urinary protein(r=0.568 ; p<0.05). Fasting blood glucose was positively correlated with duration of diabetes, as well as dietary fat and calorie intake. The results of this study suggest that NIDD alters all magnesium, zinc, and calcium utilization, particularly magnesium is involved in glycemic control in this condition.

• 한국응용과학기술학회지
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• 제2권2호
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• pp.21-24
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• 1985

The effects of dietary magnesium, calcium on the serum cholesterol concentration in rabbit was studied for a period of 21 days using isocalorids and isonitrogenous basal diet. It is investigated that the serum cholesterol level lowering by feeding with calcium, magnesium, sesame oil and perilla oil, did not appeared but perilla oil and magnesium feeding group appeared a little bit lowering. There was no effect for the total protein, but there was some sort of effect for albumin and globulin. Particulary, alpa-globulin was increased by calcium, magnesium, sesame oil and perilla oil feeding groups. The esterified cholesterol was increased at the magnesium and perilla oil diet group. It is also, investigate that there is almost no effect for the electrolytes concentration and transport phenomena in the cell through magnesium, calcium, sesame oil and perilla oil diet groups.

• Journal of Nutrition and Health
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• 제31권6호
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• pp.1031-1038
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• 1998

The present study was carried out to investigate the effects of magnesium supplement levels and periods on calcium, magnesium, and phosphorus metabolism in male Sprague-Dawley rats given low protein and magnesium deficient diets for 2 weeks. Serum calcium content was significantly lower in the magnesium supplement group than in the magnesium-deficient group, but calcium excretion in urine and feces was significantly increased as magnesium level and period was increased. Increasing the dietary magnesium level and periods raised serum content and excretion of magnesium in urine k feces. Urinary excretion of phosphorus in two week group was significantly lower in the magnesium supplement group than in the magnesium-deficient group. fecal phosphorus excretion in supplement group (Mg 800mg/kg diet) was significantly higher than that of other group. (Korean J Nutrition 31(6) : 1031-1038, 1998)

• 한국식품영양과학회지
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• 제12권3호
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• pp.212-218
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• 1983

토끼에 마그네슘 칼슘이 첨가된 식이를 급여하여 토끼의 liver microsomal protein에 함유된 HMG-CoA reductase의 활성과 혈청 콜레스테롤, 트리글리세리드, 마그네슘 및 칼슘의 양을 측정하여 다음과 같은 결과를 얻었다. 1. 혈청 마그네슘의 경우 대조군이 9.5mg% 인데, 마그네슘 첨가군은 평균 8.27이었고, 칼슘을 첨가하여 사육한 실험군에서 상당히 낮은 값 T-D : 3.5, T-E : 3.0, T-F : 4.0, T-G : 7.3으로 평균 4.45를 보였다. 2. 혈청 칼슘의 경우 대조군이 15.3mg %인데, 마그네슘 첨가 실험군은 평균 14.6이나 칼슘 첨가 실험군에 있어서 평균 14.1로서 큰 차이가 없었다. 3. 혈청 트리글리세리드의 경우 대조군 82.8에 비하여 마그네슘첨가 실험군은 평균 60.3이었으나, 칼슘 첨가 실험군은 평균 69.5로서 다소 높은 값을 보여 주었다. 4. 혈청 콜레스테롤의 경우 대조군이 80mg%인데 반하여, 마그네슘 첨가 실험군은 평균 64.3이었고, 칼슘 첨가 실험군은 평균 56.3으로 상당히 낮은 값을 보여 주었다. 5. microsomal protein의 HMG-CoA reductase의 활성의 경우는 대조군이 0.995nmol/min/mg 인데, 마그네슘 첨가 실험군은 평균 0.948을 보였고 칼슘 첨가 실험군은 평균 0.849를 보여 주었다.

• 대한영양사협회학술지
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• 제7권3호
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• pp.258-266
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• 2001

The purpose of this study was to investigate the effect of dietary zinc on the carbohydrate metabolism and the serum content of magnesium and chromium in rats fed normal diet. Animals were divided into three groups by different dietary zinc levels which were low(15ppm), normal(30ppm) or high(60ppm). Serum glucose and Insulin concentrations were assessed by the glucose method and the radio immuno assay respectively. Serum zinc. magnesium and chromium contents were measured by Indectively Coupled Plasma(ICP). Results of the study were as follows : 1. Feed intake in a zinc deficiency group was significantly higher than that in other group, but the weight gain in high zinc diet group was significantly lower than in other groups. 2. There were no significant differences in liver, kidney and spleen weight. 3. Serum glucose, insulin and zinc concentrations were not significantly different among different dietary zinc groups, However serum magnesium and chromium concentrations were significantly decreased as the level of dietary zinc was increased.