• Asian-Australasian Journal of Animal Sciences
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• 제31권8호
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• pp.1103-1109
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• 2018

Objective: This study aimed to screen and identify the target genes of miR-375 in pig Sertoli (ST) cells and to elucidate the effect of miR-375 on the proliferation of ST cells. Methods: In this study, bioinformatics software was used to predict and verify miR-375 target genes. Quantitative polymerase chain reaction (PCR) was used to detect the relationship between miR-375 and its target genes in ST cells. Enzyme-linked immunosorbent assay (ELISA) of rearranged L-myc fusion (RLF) and hypoxia-induced gene domain protein 1A (HIGD1A) was performed on porcine ST cells, which were transfected with a miR-375 mimics and inhibitor to verify the results. Dual luciferase reporter gene assays were performed to assess the interactions among miR-375, RLF, and HIGD1A. The effect of miR-375 on the proliferation of ST cells was analyzed by CellTiter 96 AQueous One Solution Cell Proliferation Assay (MTS). Results: Five possible target genes of miR-375, including RLF, HIGD1A, colorectal cancer associated 2, POU class 3 homeobox 1, and WW domain binding protein 1 like, were found. The results of quantitative PCR suggested that mRNA expression of RLF and HIGD1A had a negative correlation with miR-375, indicating that RLF and HIGD1A are likely the target genes of miR-375. The ELISA results revealed that RLF and HIGD1A were negatively correlated with the miR-375 protein level. The luminescence results for the miR-375 group cotransfected with wild-type RLF and HIGD1A vector were significantly lower than those of the miR-375 group co-transfected with the blank vector or mutant RLF and HIGD1A vectors. The present findings suggest that RLF and HIGD1A are target genes of miR-375 and that miR-375 inhibits ST cell proliferation according to MTS analysis. Conclusion: It was speculated that miR-375 affects cell proliferation through its target genes, which play an important role in the development of testicular tissue.

• 대한본초학회지
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• 제27권5호
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• pp.99-107
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• 2012

Objectives : This study was conducted to investigate the anti-obesity effects of mixed water extract of Plantaginis Semen & Poria (CJB) on obese rats induced with high fat diet. Method: Male Sprague-Dawley rats were divided into three groups; Normal group, high-fat (HF) group, HF+CJB(100 mg/kg, P.O.) for 8 weeks. The body weight, food intake and weights of adipose tissues were measured, respectively. Lipid profiles in serum were analyzed by automatic analyzer of blood. Obese marker proteins and the changes of NPY and LR immunoreactivities in hypothalamus were analyzed by Western blot and immunohistochemistry. Results : CJB significantly reduced body weight, food intake, adipose tissue weights compared to HF group. Serum triglyceride and total cholesterol were significantly higher in HF group than in Normal group however, CJB significantly lowered those of HF group. HDL-cholesterol level in CJB groups was elevated compared to HF group. The pAMPK in hypothalamus were decreased in that of HF group and that of CJB group decreased. Inversely, ACC was increased in HF group and that of CJB groups decrease. Expression of $PPAR{\gamma}$ in hypothalamus was increased by CJB treatment. However, $PPAR{\alpha}$ levels in CJB group were decreased compared to HF group. The expressions of NPY and LR in PVN and ARC of hypothalamus were decreased in CJB group, respectively. Conclusion : Administration of CJB can play anti-obesity through regulations of NPY and LR activities and obesity marker proteins in obese rat's hypothalamus.

• 한국식품저장유통학회지
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• 제21권1호
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• pp.107-113
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• 2014

본 연구는 섬더덕의 항비만 효능과 지질대사 개선효과를 알아보기 위해 C57BL/6J 4주령의 마우스에게 고지방식이를 9주간 급여하여 비만을 유발한 후 섬더덕 추출물을 첨가한 식이를 5주간 먹여 실험하였다. 체중은 고지방식이군에서 유의적으로 증가하였으며, 섬더덕 추출물을 먹인 마우스에서 유의적인 감소를 하였다. 식이효율 결과 또한 섬더덕 추출물을 공급한 군이 고지방식이군보다 통계적으로 유의하게 낮은 것으로 나타났다. 장기 및 지방무게에서도 고지방식이군에서 무게가 증가한 것을 확인하였고, 섬더덕 추출물을 공급한 군에서 장기 및 지방의 무게가 전반적으로 감소한 것을 알 수 있었다. 혈장을 이용한 중성지방, 총콜레스테롤, 고밀도콜레스테롤을 측정한 결과 섬더덕 추출물을 공급한 군에서 중성지방과 총콜레스테롤은 유의적으로 감소하였고, 고밀도콜레스테롤은 유의적으로 증가함을 확인할 수 있었다. 동맥경화 지수와 심혈관계 위험도 지수는 감소된 것을 확인할 수 있었다. Western blot을 통해 지방관련 단백질 발현양상을 본 결과 지방분해에 관여하는 $PPAR{\alpha}$의 경우 섬더덕 추출물을 급여함으로써 발현양이 증가하였으며, 지방생성 관련 단백질인 SREBP-1, FAS, ACC의 경우 고지방식이군과 비교 시, 섬더덕 추출물을 공급한 군에서 억제되었다. 이상의 결과로 섬더덕 추출물의 섭취는 체중 감소와 더불어 혈장 지질수준 개선에도 도움을 줄 수 있음을 제시하였다.

• 치위생과학회지
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• 제18권2호
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• pp.76-84
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• 2018

구강위생을 위한 간편성과 편리성 때문에 영유아에서 건강취약자 및 일반인에 이르기까지 구강청결티슈 사용이 증가되고 있다. 또한 기본 성분인 정제수 외에도 구강위생에 도움이 될 목적으로 다양한 기능 성분이 첨가된 구강청결티슈들이 시판되고 있다. 하지만 함유 성분에 대한 제공정보가 부족하고 함유량 기준이 마련되지 못하고 있어 구강 환경이 예민한 영유아 등에게 적용하기 위해서는 이들 제품에 대한 연구자료가 필요할 것으로 보인다. 본 연구에서는 구매도가 높은 시판 구강청결티슈 5종에 대한 구강세포 안전성을 확인함으로써 제품사용 시 유의해야 할 정보를 제공하고자 하였다. 시험 결과 피셔프라이스와 닥터케네디 제품 성분은 구강미생물 S. mutans 및 A. actinomycetemcomitans에 대한 항균작용을 나타냈지만 구강상피세포 및 구강섬유세포에도 독성을 나타냈다. 항균작용이 제한적인 궁중비책, 마이비, 아이수 제품 성분은 구강상피세포 및 구강섬유세포에 대한 독성도 낮았다. 피셔프라이스와 닥터케네디 제품 성분에 의한 구강세포 독성은 G2/M phase에서 세포주기 진행 억제와 세포자멸 유도에 의한 것으로 분석되었다. 따라서 구강 환경이 예민한 영유아 등을 대상으로 한 반복적이고 빈번한 사용은 구강세포 독성의 가능성을 높일 수 있다.

• Journal of Ginseng Research
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• 제44권4호
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• pp.664-671
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• 2020

Background: Ginsenoside compound-Mc1 (Mc1) is a member of the deglycosylated ginsenosides obtained from ginseng extract. Although several ginsenosides have a cardioprotective effect, this has not been demonstrated in ginsenoside Mc1. Methods: We treated H9c2 cells with hydrogen peroxide (H₂O₂) and ginsenoside Mc1 to evaluate the antioxidant effects of Mc1. The levels of antioxidant molecules, catalase, and superoxide dismutase 2 (SOD2) were measured, and cell viability was determined using the Bcl2-associated X protein (Bax):B-cell lymphoma-extra large ratio, a cytotoxicity assay, and flow cytometry. We generated mice with high-fat diet (HFD)-induced obesity using ginsenoside Mc1 and assessed their heart tissues to evaluate the antioxidant effect and the fibrosis-reducing capability of ginsenoside Mc1. Results: Ginsenoside Mc1 significantly increased the level of phosphorylated AMP-activated protein kinase (AMPK) in the H9c2 cells. The expression levels of catalase and SOD2 increased significantly after treatment with ginsenoside Mc1, resulting in a decrease in the production of H₂O₂-mediated reactive oxygen species. Treatment with ginsenoside Mc1 also significantly reduced the H₂O₂-mediated elevation of the Bax:Bcl2 ratio and the number of DNA-damaged cells, which was significantly attenuated by treatment with an AMPK inhibitor. Consistent with the in vitro data, ginsenoside Mc1 upregulated the levels of catalase and SOD2 and decreased the Bax:B-cell lymphoma-extra large ratio and caspase-3 activity in the heart tissues of HFD-induced obese mice, resulting in reduced collagen deposition. Conclusion: Ginsenoside Mc1 decreases oxidative stress and increases cell viability in H9c2 cells and the heart tissue isolated from HFD-fed mice via an AMPK-dependent mechanism, suggesting its potential as a novel therapeutic agent for oxidative stress-related cardiac diseases.

• 대한한방부인과학회지
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• 제19권2호
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• pp.141-161
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• 2006

Purpose : This study was performed to investigate the effects of Sobokchukeo- Tang(SCT) on the experimentally-induced endometriosis in rats. Materials and Methods : Endometriosis was induced via the surgical autotransplantation technique in rats. A laparotomy was performed and a $4\;{\times}\;4\;mm$ of the right uterine horn was resected incised and sutured to the peritoneum. And the animals divided into control(n=8) and SCT-treated group(n=8). SCT(1,000 mg/head) was administered orally for 15 days after operation. The weights(body, left uterus, and ovaries) and concentrations of cytokines(MCP-1,$TNF-{\alpha}$, $IL-l{\beta}$) were measured. Histopathology, immunohistochemistry for COX-2, and histochemistry for mast cells of the transplanted uterine tissues were performed. Results : - The $volume(mm^3)$ of transplanted uterine tissues of SCT-treated group$(92.88{\pm}41.89)$ was significantly(p<<0.01) decreased than the control group $(404.50{\pm}317.68)$. The concentration(pg/ml) of MCP-1 in ascites of SCT-treated group$(5,256{\pm}1,209)$ was significantly(p<<0.001) decreased than the control group$(8,632{\pm}1,245)$. - The concentration(pg/ml) of $TNF-{\alpha}$ in ascites of SCT-treated group$(521.8{\pm}306.1)$ was significantly(p<<0.01) decreased than the control group$(1,245.2{\pm}362.2)$. - The percentage of COX-2 positive epithelial layer in transplanted uterine tissues of SCT-treated group$(25.0{\pm}7.3)$ was significantly(p<<0.001) decreased than the control group$(50.2{\pm}8.2)$. - The number of mast cells in the stroma of transplanted uterine tissues of SCT-treated group$(16.5{\pm}6.8)$ was significantly(p<<0.05) decreased than the control group$(26.0{\pm}7.7)$. - The number of mast cells in the periphery of transplanted uterine tissues of control group$(71.3{\pm}18.5)$ was significantly(p<<0.01) decreased than the control group$(109.3{\pm}30.2)$. - Proliferation of epithelia, infiltration of inflammatory cells, and microanglogenesis in transplanted uterine tissues of treated group were weakly observed than the control group. Conclusion : From the above results, Sobokchukeo-Tang(SCT) has an inhibitory effect on the development of transplanted uterine tissue in rats and it is related to the decreased concentration of MCP-1 and $TNF-{\alpha}$, and decreased expression of COX-2, and decreased infiltration of mast cells by administration of Sobokchukeo-Tang.

• Korean Journal of Acupuncture
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• 제30권1호
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• pp.37-46
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• 2013

Objectives : The Meridians and acupuncture points are the fundamental theories for acupuncture therapy. They have been associated with nervous system, but It is not well defined. We investigated that the effects of acupuncture at the river points(LU8, HT4, PC5, SP5, KI7, LR4) on the changes in the expression of nNOS, iNOS, eNOS, and NE in rats. Methods : The Male Sprague-Dawley rats were divided into 6 groups each non-acupuncture and acupuncture group. We inserted needle and retained for 5 minutes on both left and right sides of LU8, HT4, PC5, SP5, KI7, LR4 which were the river points of five transport points for 6 yin meridian vessels. After that, blood was drawn via cardiac puncture, and tissues for each point near meridian vessels were extracted to examine the changes in the changes of nNOS, eNOS, iNOS and NE. Results : The LU8 and HT4 group showed a significant decrease on nNOS. In terms of eNOS and iNOS, the LU8 group decreased significantly while the KI7 group increased significantly. However, the experimental groups didn't show any significant changes on the plasma and tissue norepinephrine without plama NE in SP5 group. Conclusions : The effect on the nNOS, iNOS, eNOS of acupuncture at LU8 and KI7 could be observed, and it is considered that the effect of acupuncture related with on nervous system could be studied by additional researches based on this one.

• 생명과학회지
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• 제19권11호
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• pp.1514-1521
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• 2009

혈장 cathepsin B 활성도 측정이 갑상선암 및 결절성 증식증의 수술 전 진단에 도움이 되는지를 알아보고자 분화갑상선암 32례, 결절성 증식증 7례, 대조군 5례의 혈장 cathepsin B 발현양상을 대조군과 함께 관찰하였다. 수술시 제거된 여포선암의 암조직, 결절성 증식증 조직의 cathepsin B 발현을 정상 조직과 비교하였다. 혈장 Cathepsin B 활성도는 정상 대조군에서 $168.94{\pm}15.10$ (${\times}10^{-2}$, mU), 결절성 증식증에서 $255.45{\pm}95.68$ (${\times}10^{-2}$, mU), 악성종양에서 $284.87{\pm}79.32$ (${\times}10^{-2}$, mU)로써 악성종양군과 결절성 증식증군에서 cathepsin B 발현이 정상 대조군보다 비교적 높게 나타났다(p<0.05). 혈장 cathepsin B의 정량적 비교를 위한 immunoassay결과에서도 결절성 증식증군($17.64{\pm}7.49\;ng/ml$)과 악성종양군($15.50{\pm}7.86\;ng/ml$)에서 정상대조군($4.85{\pm}0.61\;ng/ml$)보다 높은 수치를 나타내었다(p<0.05). 결절성 증식증 및 악성종양군의 조직 내 cathepsin B mRNA발현이 정상 조직에서보다 높게 나타났다. 따라서 혈장 cathepsin B는 갑상선세포의 비정상적인 증식시에 증가됨을 알 수 있으며, 갑상선암 혹은 결절성 증식증을 스크리닝하는데 이용될 수 있을 것으로 사료된다.

• 생명과학회지
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• 제26권9호
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• pp.1097-1104
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• 2016

차세대 염기서열 분석기술의 발달로 대량의 전사수준의 단위체들이 발견되었는데, 이것들 중 대부분의 전사체들은 비암호화 RNA들이다. 이들 중 긴 비암호화 RNA (lncRNA)들은 200개 이상의 뉴클레오티드를 가지며 단백질로 번역이 되지 않는 기능적 RNA 분자들이다. 식물의 lncRNA들은 RNA Pol II, Pol III, Pol IV, Pol V에 의해 전사체가 만들어지고, 전사 후 이들 lncRNA들은 추가적인 splicing과 polyadenylation 과정이 일어난다. 식물의 lncRNA들은 그 발현수준이 매우 낮고, 조직 특이적으로 발현 되지만, 이들 lncRNA들은 외부자극에 의해 강한 발현이 유도된다. 환경스트레스를 포함한 각기 다른 외부자극에 의해 많은 식물 lncRNA들의 발현이 유도되었기 때문에 이들 lncRNA들은 식물의 다양한 생물학적 기능과 식물의 생장발달 과정에 있어 새로운 조절 인자로 고려되고 있다. 특히 후성유전학적인 유전자 억제, 크로마틴 변형, 타겟모방, 광형태형성, 단백질 재배치, 환경스트레스 반응, 병원균 감염등에 관련하여 기능을 한다. 또한 어떤 lncRNA들은 short RNA들의 전구체로 역할도 한다. 최근 식물에서 많은 lncRNA들이 분리 동정되었지만, 이들 lncRNA들의 생리학적인 기능에 대한 현재의 이해는 여전히 제한적이고, 이들의 세부적인 조절 메커니즘 연구는 지속적으로 이루어져야 할 것이다. 이 총설에서는 식물 lncRNA들의 생합성 및 조절 메커니즘과 현재까지 밝혀진 분자수준에서의 중요한 기능들을 요약 정리하였다.

• Journal of Ginseng Research
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• 제38권3호
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• pp.167-172
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• 2014

Background: Roles of immune reaction and toll-like receptor-4 (TLR-4) have widely been established in the pathogenesis of alcoholic liver disease (ALD). Methods: We evaluated the biologic efficacy of Korean Red Ginseng (KRG), urushiol, and probiotics (Lactobacillus rhamnosus R0011 and Lactobacillus acidophilus R0052) in mouse models of ALD. Sixty C57BL/6 mice were equally divided into six feeding groups for 10 weeks: normal diet, alcohol, control, alcohol + KRG, alcohol + urushiol, and alcohol + probiotics. Alcohol was administered via a LiebereDeCarli liquid diet containing 10% alcohol. TLR-4 expression, proinflammatory cytokines, and histology, as well as the results of liver function tests were evaluated and compared. Results: No between-group differences were observed with regard to liver function. TLR-4 levels were significantly lower in the KRG, urushiol, and probiotics groups than in the alcohol group ($0.37{\pm}0.06ng/mL$, $0.39{\pm}0.12ng/mL$, and $0.33{\pm}0.07ng/mL$, respectively, vs. $0.88{\pm}0.31ng/mL$; p < 0.05). Interleukin-$1{\beta}$ levels in liver tissues were decreased among the probiotics and KRG groups. The tumor necrosis factor-${\alpha}$ level of liver tissue was decreased in the KRG group. Conclusion: The pathological findings showed that alcohol-induced steatosis was significantly reduced by KRG and urushiol. As these agents improve immunologic capacity, they may be considered in potential anti-ALD treatments.