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콩 식이섬유로부터 추출한 헤미셀룰로즈의 식이가 Streptozotocin유도 당뇨 흰쥐의 혈당과 혈청 콜레스테롤 함량에 미치는 영향
이명예(Myung-Ye Lee),김미경(Mee-Kyung Kim),신진기(Jin-Gi Shin),김순동(Soon-Dong Kim) 한국식품영양과학회 2004 한국식품영양과학회지 Vol.33 No.7
콩 식이섬유로부터 제조한 헤미셀룰로즈가 streptozotocin으로 유발한 당뇨쥐의 혈당과 혈청콜레스테롤함량에 미치는 영향을 조사하였다. 실험군은 셀룰로즈군(대조군), 헤미셀룰로즈 0.5% 식이군(H-1군), 헤미셀룰로즈 1% 식이군(H-2군)으로 나누어 6주간 사육한 후 당뇨를 유발시키고 계속해서 1주간 사육하였다. 당뇨유발에 따른 식이섭취량과 체중 증가량 및 식이효율은 H-2 식이군이 대조군과 H-1군에서 보다 높은 값을 나타낸 반면 음용수 섭취량은 H-2군에서 낮았다. 간장의 무게는 H-2군이 대조군과 H-1군에 비하여 유의적으로 낮았다. 혈당은 대조군에서는 212.8 ㎎/dL, H-1군에서는 160.5 ㎎/dL, H-2군에서는 141.0 ㎎/dL으로 H-2군은 대조군의 66%수준이었으며 뇨당은 대조군 0.97 ㎎/dL, H-1군 0.53 ㎎/dL, H-2군 0.35 ㎎/dL로 H-1군은 대조군의 55%, H-2군은 대조군의 36%로 헤미셀룰로즈 식이군이 대조군에 비하여 유의적으로 낮았다. 혈청내 중성지질의 함량은 식이에 따른 유의적인 차이는 보이지 않았으나 혈청 총콜레스테롤 함량은 대조군에서 101.6 ㎎/dL, 식이군에서는 73.8~78.4 ㎎/dL로 유의적으로 낮았으며, 혈청 HDL-콜레스테롤 함량은 모든 실험군에서 39.8~44.7 ㎎/dL 범위로 비슷한 수치를 나타내었다. HTR과 동맥경화지수는 대조군에서는 각각 0.44 및 1.27로 나타났으나 헤미셀룰로즈 식이군에서는 각각 0.54 및 0.46~0.85로 대조군보다 낮았다. 이상의 결과, 콩 식이섬유로부터 추출한 헤미셀룰로즈는 항당뇨효과가 높음을 나타내었다. The effect of hemicellulose extracted from soy fiber on the level of blood glucose and serum cholesterol in the streptozotocin-induced diabetic rat were investigated. The experimental plots were divided to cellulose group (control), 0.5% hemicellulose group (H-1) and 1% hemicellulose group (H-2) group. The groups were fed for 6 weeks, then fed for 1 week more after streptozotocin injection. Food intakes, weight gain and food efficiency ratio of H-2 group were higher, while water intakes and liver weight were lower than those of control and H-1 group. The content of blood glucose and urine glucose were 212.8 ㎎/dL, 0.97 ㎎/dL in the control group, 160.5 ㎎/dL, 0.53 ㎎/dL in the H-1 group, 141.0 ㎎/dL, 0.35 ㎎/dL in the H-2 group, respectively. There was no significantly difference in the content of neutral lipid, while the content of total serum cholesterol was 101.6 ㎎/dL in the control group, 73.8~78.4 ㎎/dL in the hemicellulose groups. The content of serum HDL-cholesterol in the all experimental groups showed no significantly difference showing 39.8~44.7 ㎎/dL. HTR and atherogenic index were 0.44 and 1.27 in the control group, but 0.54 and 0.46~0.85 in the hemicellulose groups, respectively.
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김미경,왕수경,신동순 한국식생활문화학회 1995 韓國食生活文化學會誌 Vol.10 No.5
This research was designed to see the relationship among nutrient intake, food intake frequency and psychosocial stress in ordinary life. The subjects were 190 males and 263 females of university students in urban areas. There were significant correlations between nutrient intake and stress value, and between food intake frequency and stress value. In male, the more they consumed energy, protein and carbohydrate, the higher they had stress in several categories. But in female the results were reversed. Their stress values were lower when they have consumed protein source food frequently. And in general, stress values of female were higher than those of male. From these results, we conclude that nutrient intake tends to be decresed with increase stress in less stressful condition, but to be increased in more stressful condition.
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식이 단백질 수준 및 Tryptophan 투여가 Serotonin 대사에 미치는 영향
신동순,김미경 이화여자대학교 생명과학연구소 1993 생명과학연구논문집 Vol.4 No.-
This study was desigend to confirm the effect of dietary protein level and oral administration of tryptophan on brain serotonin metabolism. Two animal experiments were conducted. The objectives and results of each research were as follows: In the first experiment, it was investigated whether administration of reserpine to Sprague-Dawely rats fed 6% or 20% casein diet induced decrease in serum tryptophan and large neutral amino acid(LNAA) concentrations. tryptophan/LNAA concentration ratio, brain tryptophan, serotonin and 5-hydroxyindoleacetic acid(5-HIAA) contents. Brain serotonin content 6% casein diet group was lower than those of 20% casein diet group. Both 6% and 20% casein diet groups administered with reserpine to induce the analogous depression, showed the notable decrease in brain serotonin content when they were compared with 20% casein diet group not administered with reserpin. Serum tryptophan/LNAA ratio and brain 5-HIAA content showed a tendency similar to the change of serotonin content, but the mean difference among all groups was not significant. From these results, it could be said that when the dietary protein level was low, brain serotonin content was decreased. The second experiment was to see the change in serum tryptophan concentration and tryptophan/LNAA ratio and brain tryptophan, serotonin and 5-HIAA content when tryptophan was administered orally to the animals treated with reserpine. Serum tryptophan concentration tended to increase in both reserpine-treated 6% and 20% casein diet groups administered with tryptophan, especially in the 6% casein diet group. Serum tryptophan/LNAA concentration ratio tended to increase in reserpine-treated 6% casein diet group, while decrease in reserpine-treated 20% casein diet group. Brain tryptophan content was increased in both reserpine-treated 6% and 20% casein diet groups. However, brain serotonin content of reserpine-treated 6% casein diet group showed a tendency to decrease, while that of reserpine-treated 20% casein group increase. Consequently, the effect of tryptophan administration on increase of brain tryptophan and serotonin content in animals treated with reserpine was far more excellent in 20% casein diet groups. It was concluded that dietary protein intake and tryptophan administration increase brain serotonin level. Accordingly, it was possible to confirm that brain function, particularly in aspect of behavior related to the serotonin, was changed with manipulation of ditary composition.
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