본 연구에서는 16주령 암컷 흰쥐를 대상으로 이소플라본의 함량이 다른 세 종류의 식이를 6주간 공급한 후 뇨와 변에서 daidzein과 genistein의 배설량을 측정하여 생체 이용성을 살펴보고 난소절...

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https://www.riss.kr/link?id=A76059393
2005
Korean
KCI등재,SCOPUS
학술저널
27-35(9쪽)
1
0
상세조회0
다운로드본 연구에서는 16주령 암컷 흰쥐를 대상으로 이소플라본의 함량이 다른 세 종류의 식이를 6주간 공급한 후 뇨와 변에서 daidzein과 genistein의 배설량을 측정하여 생체 이용성을 살펴보고 난소절...
본 연구에서는 16주령 암컷 흰쥐를 대상으로 이소플라본의 함량이 다른 세 종류의 식이를 6주간 공급한 후 뇨와 변에서 daidzein과 genistein의 배설량을 측정하여 생체 이용성을 살펴보고 난소절제 여부에 따른 차이가 있는지도 알아보고자 하였다. 식이 내 이소플라본의 첨가량이 많을수록 변중 daidzein 배설량은 유의적으로 증가하여 섭취량에 따른 반응의존성을 나타내었다. 그러나 난소절제여부에 따른 차이는 없었다. 변 중 genistein의 배설량도 이소플라본의 첨가량이 많을수록 유의적으로 증가하였으나, HI군에서 비교해 보면 난소절제시 sham 수술보다 변 중 배설량이 유의적으로 낮았다. 변 중 회수율의 경우에는 배설량과 같은 섭취량에 비례적인 관계는 나타나지 않았으며 난소절제 여부에 따른 차이도 뚜렷하지 않았다. 뇨 중 daidzein의 배설량은 변중 배설량과 마찬가지로 sham과 난소절제 모두에서 이소플라본의 첨가량이 많을수록 유의적으로 증가되었다. 난소절제 여부에 따른 뇨 중 이소플라본의 배설량을 보면 LI, MI, HI군에서 daidzein의 배설량은 sham에 비해 난소절제에서 유의적으로 낮았으며 genistein의 배설량도 LI군에서는 유의적으로 낮았다. 또한 뇨 중 회수율을 보면 sham에서 LI군에 비해 MI와 HI군에서 회수율이 유의적으로 낮았는데, 난소절제의 경우에는 이소플라본의 수준에 따른 회수율의 차이가 없었다. 그리고 회수율은 난소절제에서 sham에 비해 LI와 MI군에서 유의적으로 낮았다. 그러므로 이소플라본의 섭취수준이 증가하면 뇨와 변을 통한 이소플라본의 배설은 한국인의 일상적 섭취수준의 10배 범위에서는 섭취량에 의존적임을 알 수 있으며, 난소절제를 하였을 경우 뇨와 변을 통한 배설량을 감소시켜서 더 많이 체내에서 이용함을 알 수 있었다. 섭취량이 증가하면 sham 수술의 경우에는 뇨 중 회수율이 감소함에 비해 난소절제에서는 회수율이 동일하고 LI와 MI군에서는 유의적으로 sham에 비해 회수율이 낮으므로 난소절제모델에서는 이소플라본의 생체이용성이 매우 높음을 확인할 수 있었다. 이러한 점으로 미루어볼 때 난소호르몬의 분비가 없는 폐경 후 여성에게는 이소플라본의 섭취가 호르몬으로서의 효과가 뚜렷할 것으로 짐작되며 이소플라본의 보충섭취를 권장한다.
다국어 초록 (Multilingual Abstract)
This study was performed to determine the effect of three different concentrations of soy-isoflavones on excretions through urine and feces in either sham-operated or ovariectomized female rats. Seventy-two 16-week old Sprague-Dawley rats underwent sh...
This study was performed to determine the effect of three different concentrations of soy-isoflavones on excretions through urine and feces in either sham-operated or ovariectomized female rats. Seventy-two 16-week old Sprague-Dawley rats underwent sham operation or bilateral ovariectomy. They were provided diets containing different levels of soy isoflavones for 6 weeks: 50 ppm (low isoflavone intake; LI), 250 ppm (medium isoflavone intake; MI) and 500 ppm (high isoflavone intake; HI). The subsequent fecal and urinary excretions of daidzein and genistein were then measured. In the sham operated rats, body weight gains and food efficiency ratio of the MI and HI groups were significantly lower than control group, while food intake was not different. However, there was no significant difference in ovariectomized rats. The fecal excretion of daidzein was significantly higher in the HI group than the LI and MI groups, and that of genistein increased as dietary isoflavone intakes increased in both the sham operation and ovariectomy. The reverse tendency of fecal recovery was shown with dietary isoflavone dose only in genistein among ovariectomized rats. When dietary isoflavones were increased from 50 ppm to 500 ppm, the amounts of daidzein and genistein in the urine increased dose-dependently. The higher intakes of isoflavones leaded to lower recovery rates of daidzein and genistein in the urine in the sham-operated rats but not in the ovariectomized rats. The urinary recovery was significantly higher in the LI group than the MI and HI groups in the sham-operated rats. The excreted amounts and recovery of the two isoflavones in the urine were higher in the sham operated groups than in the ovari-ectomized groups, which implied an increased bioavailability of isoflavones by ovariectomy. Therefore, the results suggest that a more efficient use of soy isoflavones in ovariectomized conditions may occur, which indicates that a higher dose of soy isoflavones is necessary for the postmenopausal states.
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쑥부쟁이 분획물의 in vitro 암세포증식 억제 및 QR 유도효과
In vitro 및 In vivo에서 펙틴의 비만 억제 효과
Sesamol 급여 흰쥐의 대사물질 측정 및 항산화 효과
학술지 이력
| 연월일 | 이력구분 | 이력상세 | 등재구분 |
|---|---|---|---|
| 2023 | 평가 | 해외DB학술지평가 신청대상 (해외등재 학술지 평가) | |
| 2020-01-01 | 등재 | 등재학술지 유지 (해외등재 학술지 평가) | ![]() |
| 2014-06-24 | 학회명변경 | 한글명 : 한국식품영양과학회지 -> 한국식품영양과학회영문명 : Journal of the Korean Society of Food Science and Nutrition -> The Korean Society of Food Science and Nutrition | ![]() |
| 2014-04-02 | 학회명변경 | 한글명 : 한국식품영양과학회 -> 한국식품영양과학회지영문명 : 미등록 -> Journal of the Korean Society of Food Science and Nutrition | ![]() |
| 2011-01-01 | 등재 | 등재학술지 유지 (등재유지) | ![]() |
| 2009-01-01 | 등재 | 등재학술지 유지 (등재유지) | ![]() |
| 2007-01-01 | 등재 | 등재학술지 유지 (등재유지) | ![]() |
| 2005-01-01 | 등재 | 등재학술지 유지 (등재유지) | ![]() |
| 2002-07-01 | 등재 | 등재학술지 선정 (등재후보2차) | ![]() |
| 2000-01-01 | 등재 | 등재후보학술지 선정 (신규평가) | ![]() |
학술지 인용정보
| 기준연도 | WOS-KCI 통합IF(2년) | KCIF(2년) | KCIF(3년) |
|---|---|---|---|
| 2016 | 1.03 | 1.03 | 1.13 |
| KCIF(4년) | KCIF(5년) | 중심성지수(3년) | 즉시성지수 |
| 1.18 | 1.2 | 1.993 | 0.21 |