• 동아시아식생활학회지
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• 제22권2호
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• pp.231-238
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• 2012

$Dioscorea$ $batatas$ Decne is a type of yam that eaten raw and used as a traditional oriental medicine in Asian countries. In this study, we evaluated the functional effects of yam water extracts on body weight levels and serum lipid concentrations in mice fed high fat diet. Mice were divided into four groups: normal diet control (ND), high fat diet control (HFD), HFD+yam extract 100 mg/kg (HFD-Y100), and HFD+yam extract 200 mg/kg (HFD-Y200). Yam extract was administrated orally to mice fed a high fat diet for 5 weeks. Treatment with yam extract significantly reduced body weight levels and energy efficiency in a dose-dependent manner in HFD-fed mice. Yam extract also attenuated serum levels of triglyceride, total cholesterol, and LDL-cholesterol, as well as organ weights of liver and abdominal adipose tissue in mice fed a high fat diet. Moreover, blood levels of glucose, insulin, and leptin significantly decreased in a dose-dependent manner upon administration of yam extract. Blood activities of GPT, GOT, and LDH were lower in the yam extract-treated groups compared to the HFD group. These results indicate that yam water extract may reduce elevated body weight and serum lipid concentrations in mice fed a high fat diet, suggesting its usefulness as a functional food for reducing body fat and hyperlipidemia.

• 한국식품영양과학회지
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• 제34권9호
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• pp.1362-1366
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• 2005

홍삼청국장 추출물(RC)이 알코올을 섭취중인 당뇨흰쥐 혈당과 혈청지혈에 미치는 효과를 관찰하기 위하여 SD계 흰쥐에 streptozotocin(STZ)을 투여하여 고혈당과 고지혈증을 유발시킨 다음 홍삼청국장 추출물을 함유(g/mL)하는 $20\%$ 알코올을 매일 2 mL씩 2주간 경구투여 하였을 때의 증체량, 식이효율, 음용수 섭취량과 배뇨량, 장기중량, 혈당 및 혈청지질 함량에 미치는 영향을 조사하였다. 그 결과 RC의 식이는 STZ 투여에 의하여 증가되었던 음용수 섭취량과 배뇨량을 개선시키지 못하였으나, 감소하였던 증체량과 식 이 효율은 대조군 수준으로 회복시켰으며, 고혈당과 고지혈증도 유의하게 감소시켰다. RC는 당뇨 유발 후 에탄을 투여로 인한 사망률을 현저히 감소시켰다. 이러한 결과와 문헌상의 지견들을 종합해 볼 때, RC는 고혈당 및 고지혈증을 치료 및 예방함으로서 에탄을 섭취에 의한 사망률을 감소시킴과 동시에 당뇨에 의해 발생할 수 있는 당뇨 합병증을 예방 내지는 지연시켜주는 작용이 있을 것으로 생각된다.

• Nutrition Research and Practice
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• 제9권1호
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• pp.37-42
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• 2015

BACKGROUND/OBJECTIVES: Red grape seeds as functional food are a good source of important bioactive components such as phenolics and antioxidants, which decrease oxidative stress that contributes to the pathogenesis of hepatotoxicity. The current study was conducted in order to evaluate the protective effect of red grape dried seeds (RGDS) on antioxidant properties, lipid metabolism, and liver and kidney functions of rats with paracetamol (750 mg/kg) induced hepatotoxicity. MATERIALS/METHODS: RGDS was added to the basal diet at 5, 10, and 20%. Thirty five adult male rats were assigned to five groups (n = 7) for a six-week feeding period; group (1) normal control, group (2) induced control, groups (3, 4, and 5) fed a diet with RGPS at different levels, 5, 10, and 20%, respectively. At the end of the feeding period, animals' blood and tissues were collected for estimation of serum lipid profile, serum liver, and kidney biomarkers. The protection was measured by detecting lipid peroxidation (LPO), glutathione (GSH), superoxide dismutase (SOD), Catalase (CAT) (in liver tissues), and liver histological examination. RESULTS: The results showed a significant (P < 0.05) decrease in levels of serum cholesterol, triglycerides, low density lipoprotein (LDL-C), and very low density lipoprotein (VLDL-C), with a significant increase in level of high density lipoprotein (HDL-C) for RGDS groups compared to induced control. Rats administered a diet containing RGDS levels produced significant (P < 0.05) hepatoprotection by decreasing the activities of liver enzymes, kidney parameters, and lipid peroxidation, while levels of GSH, SOD, and CAT were increased significantly to near the normal levels. CONCLUSION: The RGDS 20% group was more effective than others against hepatotoxicity of paracetamol, which may be attributed to RGDS total phenols and antioxidant contents, which were 1.438 mg and 1.231 mg, respectively.

• 한국자원식물학회지
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• 제29권4호
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• pp.355-362
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• 2016

혈중 LDL 콜레스테롤 농도는 이상 lipoprotein metabolism의 유효한 지표로 간주되고 있으며, 관상동맥질환 및 동맥경화증의 위해성과 직접 연관이 있는 것으로 알려져 있다(Goldstein and Brown, 1983; Venter et al., 1990). 또한 HDL 콜레스테롤은 말초조직에서 간으로의 콜레스테롤의 이동에서 중요한 역할을 하며, 유리형 콜레스테롤의 에스테르화를 촉매하는 효소인 lecithin:cholesterol acetyltransferase (LCAT)를 활성화하여 세포 안으로 콜레스테롤의 유입을 억제함으로써 동맥경화를 막는 역할을 한다(Steinberg and Witztum, 1990). 본 연구 결과 석창포 열수 추출물은 혈중 triglyceride 수준을 유의하게 낮추는 효과가 입증되었다. 또한 석창포 열수 추출물은 혈중 total cholesterol과 HDL-cholesterol 수준을 WKAG-M, WKAG-H군에서 유의하게 감소 시켰으며 LDL-cholesterol 수준은 석창포 열수 추출물 투여에 의해 유의적으로 증가되었다. 또한 이러한 결과로부터 석창포 열수 추출물은 혈중 지질 조절에 의해 동맥 경화 지수를 감소시킬 수 있으며 심장 위험 지수 또한 감소시킬 수 있음을 알 수 있었다. 추후 석창포 열수 추출물 분획 중의 각 성분들이 혈중 지질 성상에 미치는 효과를 규명하는 연구를 수행하여 유효성분에 대한 연구를 계속할 예정이다.

• Korean Journal of Acupuncture
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• 제34권3호
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• pp.116-125
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• 2017

Objectives : The aim of this study was to assess the effectiveness of acupuncture in treating prehypertension and stage 1 hypertension in postmenopausal women. Methods : The study was a multi-center, four-arm, non-blinded, randomized clinical trial. Sixty participants were randomly assigned to experimental or control groups. The experimental groups received 10 acupuncture sessions over 4 weeks(Group A, n=20) or 20 sessions over 8 weeks(Group B, n=20) along with usual care. The acupoints were GB20, LI11, ST36, and SP6, bilaterally. The acupuncture groups were followed-up for an additional 12 weeks after acupuncture treatment. The control groups received usual care for 16 weeks(Group C, n=10) or 20 weeks(Group D, n=10). The outcomes were blood pressure, blood pressure control rates, lipid profile, and high-sensitivity C-reactive protein(hs-CRP). Results : After 4 weeks, DBP in the acupuncture groups(A+B) showed no significant decrease compared to the control group(C+D). However, after 8 weeks of acupuncture treatment, group B showed a significant decrease in DBP after acupuncture treatment and follow-up period compared to control group. Although there was no difference between the acupuncture and control groups in SBP after acupuncture treatment, group B showed a significant decrease in SBP compared to control group after follow-up period. Lipid profiles and hs-CRP did not differ significantly between acupuncture and control groups. Conclusions : Acupuncture treatment for 8 weeks showed the effect on prehypertension and mild hypertension. To verify the effect of acupuncture on blood pressure, rigorous trials including more participants are required.

• 대한예방한의학회지
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• 제19권1호
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• pp.131-144
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• 2015

Objective : This study was conducted to investigate anti-obesity effects of mixed-Powder(Raphani Semen, Coicis Semen, Poria, Plantaginis Testa & Theae folium)(HP) & mixed water extract(Citri Pericarpium, Crataegi Fructus, Maydis Stigma, Allium Skin) (HE) in mice fed a high-fat diet. Method : 50 Female ICR mice were divided into six groups; Normal group (Ve), high-fat diet group (Po), Po+HP(0.6g/kg) group(HP), Po+HE(1g/kg) group(HE), Po+(HP+HE) group(HPE), Po+(HP+HE)*2 group(DHPE). For 8 weeks, these groups were fed their respective diets. Body weight, liver weight and weights of adipose tissues, GOT/GPT index changes & Blood Glucose index changes were measured respectively. Lipid profiles in serum were analyzed by kit of blood. Results : Groups HP, HE, HPE, DHPE had significantly reduced body weight, liver weight, adipose tissue weights and GOT/GPT index, blood glucose index compared to the Po group. Also, serum triglyceride and total cholesterol, low density lipoprotein, were significantly reduced when compared to the Po group. Group G1 had significantly increased high density lipoprotein levels. Conclusion : Mixed powder (HP) & mixed water extract (HE) show anti-obesity effects in mice fed a high-fat diet.

• Nutrition Research and Practice
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• 제1권1호
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• pp.65-69
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• 2007

We examined the associations between adiponectin or leptin and serum ICAM-1 levels in seventy-six hypercholesterolemic patients (mean age 59 yrs, 25 males and 51 females, LDL-cholesterol>=130mg/dL at screening). Blood lipid profiles and HOMA-IR derived from fasting glucose and insulin concentrations were determined. Serum levels of adiponectin, leptin and ICAM-1 were analyzed using ELISA The results showed that serum levels of leptin were positively associated with serum levels of ICAM-1 independent of age, sex and BMI (r=0.392, p<0.001). Serum levels of adiponectin were negatively associated with serum levels of ICAM-1 independent of age, sex and BMI (r=-0.343, p<0.005). Stepwise multiple linear regression analysis showed that serum leptin was an independent factor to be associated with serum ICAM-1 levels after adjusting for age, sex, BMI, alcohol intake, smoking status, blood lipids such as total cholesterol, triglyceride, HDL cholesterol and LDL cholesterol and HOMA-IR (p<0.001). With respect to adiponectin, its association with serum ICAM-1 was attenuated but still significant when further adjustments were made for age, sex, BMI, alcohol intake, smoking status, blood lipids such as total cholesterol, triglyceride, HDL cholesterol and LDL cholesterol and HOMA-IR (p<0.005). In conclusion, this study suggests that adiponectin and leptin are associated with endothelial derived inflammation.

• 한국응용과학기술학회지
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• 제34권1호
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• pp.132-141
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• 2017

본 연구의 목표는 열 스트레스 하에서 오리사료 내 대사에너지(ME) 수준이 혈액 매개변수에 미치는 영향을 조사하는 것이었다. 총 240마리의 육용 오리 채리밸리((Anas platyrhynchos)를 4처리구로 완전임의배치 한 후 42일 동안 사육하였다. 처리구는 ME 2900 kcal/kg, ME 3000 kcal/kg, ME 3100 kcal/kg 및 ME 3200 kcal/kg로 구분하였다. 혈액 지질 프로파일은 ME 3000과 비교할 때 ME 2900이 높았으나 ME 3100과 ME 3200은 낮았다 (p < 0.05). 혈액 aspartate aminotransferase (AST)와 alanine aminotransferase (ALT) 수준은 ME 3000과 비교할 때 ME 3100과 ME 3200에서 증가하였다 (p < 0.05). 혈액 적혈구와 혈소판 프로파일은 ME 3000과 비교할 때 ME 3100과 ME 3200은 높아졌으나 ME 2900은 감소하였다 (p < 0.05). 혈액 전해질 가운데, chloride ($Cl^-$) 농도는 ME 3000과 비교할 때 ME 2900에서 낮아졌다 (p < 0.05). 혈액 가스와 $PCO_2$는 ME 3000과 비교할 때 ME 2900에서 감소하였다 (p < 0.05). 혈액 면역물질(IgG) 수준은 ME 3000과 비교할 때 ME 2900에서 줄어들었다 (p < 0.05). 스트레스 호르몬, 코르티코스테론은 ME 3000과 비교할 때 ME 2900에서 높아졌으나 ME 3100과 ME 3200은 낮아졌다 (p < 0.05).

• 한국식품영양과학회지
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• 제36권1호
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• pp.51-57
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• 2007

본 연구에서는 레반의 경구 투여가 혈중 지질 및 체내 칼슘대사에 미치는 영향을 검토하고자 0.1% 칼슘제한식이를 섭취하는 흰쥐를 대상으로 각각 식이무게의 2.5%와 5% 수준의 레반을 8주간 투여하면서 대사실험을 수행하였으며 그 결과는 다음과 같다. 체중 증가량은 대조군(C)에 비하여 5% 레반을 섭취한 군에서 감소하였으며 신장의 무게는 대조군에 비하여 레반 섭취군에서 유의적으로 높았으나 간무게는 차이가 없었다. 레반의 섭취는 맹장 내용물을 유의적으로 증가시켰으며 5%레반 섭취시 맹장조직의 무게가 유의적으로 증가하였다. 혈장 triacylglycerol과 LDL-cholesterol은 대조군에 비하여 5% 레반 섭취군에서 유의적으로 감소하였으나 AI에는 차이가 없었다. 혈장 alkaline phosphatase (ALP)와 뇨중 hydroxnproline(HP) 배설량, 혈장 칼슘 농도, 체중에 대한 대퇴골 무게 비는 레반 섭취로 변화되지 않았다. 그러나 5% 레반 섭취군의 변 중 칼슘 배설량은 대조군에 비하여 유의적으로 적었으며 칼슘 흡수율은 높았다. 레반섭취군의 뇨 칼슘 배설량과 칼슘 보유량(Ca retention)은 대조군과 차이가 없었다. 본 연구의 결과로 보아 수용성 식이섬유인 레반은 혈장 지질 개선효과와 칼슘 흡수율 증가 등의 유익한 생리적 특성을 보이므로 다이어트와 정장 기능성 소재로 뿐만 아니라 심순환계 질환의 예방과 골 대사 개선용 기능성식품 소재로의 활용도 가능할 것으로 보인다.

• Journal of Pharmaceutical Investigation
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• 제39권5호
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• pp.359-366
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• 2009

In this study, paclitaxel-loaded lipid nanosuspension (PxLN) was prepared and the in vivo profiles after intravenous administration in rats were investigated. We compared the manufacturing processes depending on the temperature: PxLN-H for a hot homogenization process and PxLN-C for solidification of lipid-drug mixtures by liquid nitrogen. Both formulations showed submicron size distribution and the similar drug loading efficiency of about 70%. In vitro release of PxLNs and Taxol$^{(R)}$ performed by a dialysis diffusion method showed similar pattern for PxLN-H and Taxol$^{(R)}$, but the reduced release profile for PxLN-C. PxLN or Taxol$^{(R)}$ was intravenously administered to the rats at a dose of 5 mg/kg as paclitaxel. The drug in blood samples were assayed by the HPLC/MS/MS method. The AUC$_t$ of PxLN-H was 3.4-fold greater than that of Taxol$^{(R)}$. PxLN-H gave higher biodistribution in all tissues than did Taxol$^{(R)}$. In addition, it maintained the higher drug concentration for 12 h. This lipid nanosuspension might be a promising candidate for an alternative formulation for the parenteral delivery of poorly water-soluble paclitaxel.