• 한국영양학회:학술대회논문집
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• 한국영양학회 2003년도 추계학술대회 및 정기총회
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• pp.161-161
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• 2003

• 한국원자력학회:학술대회논문집
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• 한국원자력학회 2002년도 추계학술발표회요약집
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• pp.366-366
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• 2002

• 대한의생명과학회지
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• 제12권2호
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• pp.65-72
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• 2006

Thiazolidinediones (TZDs) are widely used antidiabetic drugs that activate the nuclear peroxisome proliferator-activated receptor ${\gamma}(PPAR{\gamma})$, and thereby improve the metabolic abnormalities linking hypertriglyceridemia to diabetes, hyperglycemia, insulin resistance, and cardiovascular disease. To determine whether the $PPAR{\gamma}$ ligand troglitazone regulates lipid metabolism with sexual dimorphism, we examined the effects of troglitazone on circulating lipids, body weight and the expression of hepatic genes responsible for lipid metabolism in both sexes of C57BL/6J mice. Compared to mice fed a low fat control diet, both sexes of mice fed a troglitazone-treated low fat diet for 14 weeks did not exhibit changes in body weight gain, serum total cholesterol, HDL-cholesterol and LDL-cholesterol levels. However, serum triglycerides were significantly reduced in both sexes of mice, although these effects were more pronounced among males. Furthermore, troglitazone regulated the expression of hepatic genes critical for lipid and lipoprotein metabolism, the magnitudes of which were much higher in males compared to females, as evidenced by results for increased acyl-CoA oxidase and decreased apolipoprotein C-III mRMA levels. These results suggest that $PPAR{\gamma}$ activator troglitazone may exert sexually dimorphic control of serum triglycerides in part through the differential activation of $PPAR{\gamma}$ in liver between male and female mice.

• Journal of Nutrition and Health
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• 제40권7호
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• pp.601-605
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• 2007

This study investigated the therapeutic effects of Inonotus obliqua extract on blood glucose, insulin, and other biochemical parameters in genetically diabetic mice $(C57BL/KsJ^-m^{+/+}Lepr^{db})$. The mice were divided into four groups-control, Chaga 1 (dose of 0.09 mg/kg of body weight), Chaga 5 (5 times of Chaga 1), and Chaga 10 (10 times of Chaga 1) - according to supplemented dose. Inonotus obliqua extract was orally administered to the animals for 6 weeks. The body and organ (liver and kidney) weights were not different among groups. Fasting blood glucose level was significantly lower in the Chaga 5 group compared with the control (p < 0.05). Hemoglobin A1c content was significantly lower in the Chaga 5 group compared with either the control and Chaga 1 group (p < 0.05). There was no significant difference in serum insulin level among groups. The glucose-6-phosphatase activity in liver was significantly the lowest in Chaga 10 group and was significantly lower in Chaga 5 group as compared with those of control and Chaga 1 groups. Therefore, the results of this study demonstrate that Inonotus obliqua extract alleviates many of the symptoms of diabetes in genetically obese mice and may offer a possibility as a therapeutic supplement for the normalization of blood glucose levels in human with hyperglycemia and have beneficial effects in patients with non-insulin-dependent diabetes mellitus.

• Asian Pacific Journal of Cancer Prevention
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• 제13권4호
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• pp.1115-1118
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• 2012

Diallyl sulfide (DAS), a flavoring compound derived from garlic, is considered to have cancer chemopreventive potential in experimental animals and humans. This study was designated to examine possible chemopreventive effects of DAS on colon carcinogenesis using genetically engineered transgenic $Apc^{Min/+}$ mice, a well-established animal model for familial adenomatous polyposis (FAP) and sporadic colorectal cancer. Male C57BL/6J-$Apc^{Min/+}$ mice were divided into three groups. Animals of group 1 were placed on the basal diet (AIN-76A) as non-treated controls. Animals of groups 2 and 3 were given DAS-containing diets (in doses of 100 and 300 ppm, respectively). All mice were sacrificed at the end of week 10 of the experiment. Histopathological investigation revealed that the incidence of colonic polyps was decreased dose-dependently by 19% (13/16) in group 2 and by 32% (13/20) in group 3 compared to the 100% incidence (10/10) in group 1. The multiplicity of colonic polyps per mouse was also slightly decreased by DAS treatment ($1.88{\pm}0.35$ in group 2 and $1.63{\pm}0.36$ in group 3) compared to $2.00{\pm}0.39$ in group 1. On the other hand, there were no significant differences in the numbers of total polyps per mouse in the small intestine between the groups. Taken together, we suggest that DAS may exert promising inhibitory effects on colon carcinogenesis in the transgenic $Apc^{Min/+}$ mice.

• 대한한방내과학회지
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• 제25권4호
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• pp.93-104
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• 2004

Objectives : The aim was to identify the inhibitory effects of Liriopis Tuber on bleomycin-induced lung fibrosis by analysing the changes of imflammatory cell cytokines and SHI(Semiquantitative Histological Index), Materials and Methods : In this study fibrosis prone C57BL/6J mice were used. Control group was treated with blomycin(0.06mg/0.1 ml) by IT(intratracheal) instillation which is a popular method of inducing lung fibrosis and sample group took Liriopis Tuber water extract(38.0mg/10g body weight) orally for 14 days after IT instillation of blomycin. We measured the total and differential count of WBC, $IFN-{\gamma}$ & IL-4 in mice BALF and SHI(Semiquantitative Histological Index) from lung tissues of mice. BALF and lung tissues of mice were taken 14 days after IT instillation of blomycin. Results : In sample group total WBC count, proportion of neutrophil, SHI and IL-4 significantly(p<0.05) decreased, proportion of macrophage significantly(p<0.05) increased and proportion of lymphocyte, $IFN-{\gamma}$ did not decrease significantly. Conclusions : This study suggests that Liriopis Tuber has an inhibitory effects of pulmonary fibrosis by attenuation of inflammation and Th2 immune response. To determine whether this herbal medicine contribute to cure and prophylaxis of pulmonary fibrosis, further studies on the role of $IFN-{\gamma}$ relating to fibrosis are required.

• Journal of Veterinary Science
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• 제23권3호
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• pp.41.1-41.15
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• 2022

Background: Proliferative enteritis caused by Lawsonia intracellularis undermines the economic stability of the swine industry worldwide. The development of cost-effective animal models to study the pathophysiology of the disease will help develop strategies to counter this bacterium. Objectives: This study focused on establishing a model of gastrointestinal (GI) infection of L. intracellularis in C57BL/6 mice to evaluate the disease progression and lesions of proliferative enteropathy (PE) in murine GI tissue. Methods: We assessed the murine mucosal and cell-mediated immune responses generated in response to inoculation with L. intracellularis. Results: The mice developed characteristic lesions of the disease and shed L. intracellularis in the feces following oral inoculation with 5 × 10⁷ bacteria. An increase in L. intracellularis 16s rRNA and groEL copies in the intestine of infected mice indicated intestinal dissemination of the bacteria. The C57BL/6 mice appeared capable of modulating humoral and cell-mediated immune responses to L. intracellularis infection. Notably, the expression of genes for the vitamin B12 receptor and for secreted and membrane-bound mucins were downregulated in L. intracellularis -infected mice. Furthermore, L. intracellularis colonization of the mouse intestine was confirmed by the immunohistochemistry and western blot analyses. Conclusions: This is the first study demonstrating the contributions of bacterial chaperonin and host nutrient genes to PE using an immunocompetent mouse model. This mouse infection model may serve as a platform from which to study L. intracellularis infection and develop potential vaccination and therapeutic strategies to treat PE.

• 농업과학연구
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• 제51권1호
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• pp.87-95
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• 2024

The objective of this study was to investigate the anti-obesity effects of adding Momordica charantia (MC) and Chrysanthemum zawadskii var. latilobum (CZ) extracts to drinking water on obesity-induced mice. A total of 84 eight-week-old C57BL/6N male mice with an initial body weight (BW) of 28.11 ± 1.39 g were used in this study. All treatments were fed a high-fat diet for d 28. Mice were randomly divided into seven drinking treatments (six replicate each treatment) based on the initial BW. Treatments are as follows: control (CON), normal tap water, MC 1, CON with 1% MC aqueous extract, MC 2, CON with 2% MC aqueous extract, CZ 1, CON with 1% CZ aqueous extract, CZ 2, CON with CZ aqueous extract (2%), MCZ 1, CON with 1% MC aqueous extract and 1% CZ aqueous extract, MCZ 2, CON with 2% MC aqueous extract and 2% CZ aqueous extract. During the entire period, the CZ 1, MCZ 1, and MCZ 2 significantly decreased (p < 0.05) gain to feed than CON. The CON significantly higher (p < 0.05) water intake than other treatments on d 0 to 14. The MCZ 1 significantly decreased (p < 0.05) relative (ratio of absolute organ weight to BW) organ weights, including retroperitoneal white adipose tissue (RWAT) weight and inguinal white adipose tissue (IWAT) weight, compared to CON. In conclusion, our study suggests that there was no significant difference in the anti-obesity effects between MC and CZ, and MCZ 1 has synergistic effects by regulating adipose tissue.

• Journal of Nutrition and Health
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• 제50권6호
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• pp.543-551
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• 2017

본 연구는 발효시킨 블루베리액이 고지방식이로 비만이 유도된 C57BL/6J mice에 미치는 항비만 효과 및 기전에 대해 평가하였다. 실험동물은 각 7마리씩 3군으로 나누어 고지방식이와 증류수를 섭취하는 HD군, 고지방식이와 블루베리액을 섭취하는 BHD군, 고지방식이와 블루베리발효액을 섭취하는 FBHD군으로 사육하였다. 경구투여량은 10 mg/kg BW/day로 설정하였고, 이는 12%의 블루베리액(2.5 g 블루베리 함유; 블루베리 함유 안토시아닌 함량은 약 3.75 mg, 총 폴리페놀은 약 10.3 mg 추정)을 나타낸다. 본 연구 결과, 블루베리액과 블루베리발효액은 체중 감소, 체지방량 감소, 간의 중성지방과 총 콜레스테롤 함량을 감소시켰다. 그리고 혈중 LDL-콜레스테롤을 낮추고, HDL-콜레스테롤을 증가시켰으며 AST 및 ALT 농도를 감소시켰다. 또한 렙틴 농도가 낮아졌으며 지방 합성 유전자 발현에서는 SREBP-1c, ACC 발현 수준이 유의적으로 낮아졌으며, 지방 산화 유전자 발현에서는 블루베리발효액의 ACOX 발현 수준이 유의적으로 증가하였다. 결론적으로 BHD군과 FBHD군이 항비만 효과를 나타냈었으며, 특히 FBHD군이 BHD군보다 간에서 총 콜레스테롤 20%, AST 9%, ALT 52%, 지방 합성 유전자 SREBP-1c 발현을 감소시켰고, 혈중 HDL-콜레스테롤 16.4%와 지방 산화 유전자 ACOX 발현을 유의적으로 증가시켰다. 따라서 본 실험의 결과, 블루베리는 고지방 섭취로 인한 콜레스테롤 및 지질변화에 감소 효과를 나타내며, 특히 발효를 통해 기능성이 더욱 증진되는 것으로 나타났다. 발효과정은 블루베리의 항비만 효과를 증진시키며 블루베리발효액은 기능성 식품으로서 이용가치가 높을 것으로 사료된다.

• Journal of Acupuncture Research
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• 제23권1호
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• pp.1-14
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• 2006

Background : Recently, so many people are suffered from the allergic or auto-immune disease, and the representative disease is just Allergic Asthma. It is because human immune function has been decreased. Many treatments were done to treat this disease, and many methods were studied to increase immune function and to suppress the asthma. But, the effect of asthma-suppression and improvement of immune response of EH-HA(Ephedrae Herba Herbal Acupuncture) has not been studied in detail. To study the effects of EH-HA, we injected EH-HA at Joksamni(ST36) of C57BL/6 mice. Objectives : The purpose of this study is to investigate the effect of asthma-suppression and improvement of immune response of EH-HA(Ephedrae Herba Herbal Acupuncture). EH-HA was done at Joksamni(ST36) of the mice with ovalbumin-induced asthma. Methods : C57BL/6 mice were sensitized and challenged with OVA(ovalbumin) for 12 weeks. Two experimental groups were treated with different concentrations(1%, 0.1%) of EH-HA at Joksamni(ST36) for the later 8 weeks(3times/week). Results : 1. The lung weight of the group treated with EH-HA decreased significantly compared with that of control group. 2. The total cells in lung, total leukocytes and eosinophils in BALF of the group treated with EH-HA decreased significantly compared with those of control group. 3. Eosinophils in BALF of the group treated with EH-HA in photomicrographs decreased significantly compared with those of control group. 4. The concentrations of IL-13, IgE, IL-4 in serum and IL-4 in BALF of the group treated with EH-HA decreased significantly compared with those of control group. 5. The numbers of $Gr-1^+/CD11b^+\;cells,\;CD3e^-/CCR3^+\;cells,\;CD4^+\;cells,\;CD8^+\;cells,\;CD3e^+/CD69^+\;cells\;and\;IgE^+/B220^+\;cells$ in lung of the group treated with EH-HA decreased significantly compared with those of control group. 6. In RT-PCR, the mRNA expression of IL-4, IL-5 and IL-13 in the group treated with EH-HA decreased compared with those of control group. Conclusion : These results suggested that EH-HA at Joksamni(ST36) in C57BL/6mice may be effective to OVA-induced asthma of C57BL/6 mice.