• Title/Summary/Keyword: adipose

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The Relationship Between Epicardial Adipose Tissue and Diabetes Mellitus (심장외막지방두께와 당뇨와의 연관성 연구)

  • Kim, Sun-Hwa;Kim, Jung-Hoon;Im, In-Chul
    • Journal of radiological science and technology
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    • v.41 no.4
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    • pp.305-312
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    • 2018
  • The incidence of cardiovascular disease increases rapidly after 40's. The thickness of the epicardial adipose tissue was measured to analyze the risk factors affecting the thickness change. We present the cut off value for the epicardial adipose tissue thickness for high impacted variables. For the study, 547 patients underwent echocardiography, epicardial adipose tissue thickness, body mass index, abdominal subcutaneous fat thickness and diabetes mellitus were used as analytical variables. As a result, multiple regression analysis of age group showed that diabetes mellitus was highly influential in all age group, so we could predict the cut off value for the epicardial adipose tissue thickness for diabetes mellitus. As a result of ROC curve analysis, cut off value of 7.44 mm was obtained with sensitivity of 79.6% and specificity of 60.6% for diab etes variab le. Logistic regression analysis b ased on this value showed that the risk for diab etes increased 6 times with each increase in the thickness of the epicardial adipose tissue. Among the various obesity indexes, epicardial adipose tissue is used as an important index especially to prevent the risk of cardiovascular disease. Therefore, we suggest that the use of echocardiography as a routine screening method for the prevention of cardiovascular disease and metabolic syndrome, which is rapidly increasing in patients over 40's age, will enable more effective monitoring. Radiation is the emission or transmission of energy in the form of waves or particles through space or through a material medium.

Cloning and Expression of Lactate Dehydrogenase H Chain Gene in Adipose Tissues of Korean Cattle

  • Kim, H.H.;Seol, M.B.;Jeon, D.H.;Sun, S.S.;Kim, K.H.;Choi, Y.J.;Baik, M.G.
    • Asian-Australasian Journal of Animal Sciences
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    • v.14 no.12
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    • pp.1670-1674
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    • 2001
  • To understand molecular mechanisms that regulate deposition and release of intramuscular fat, a fasting-induced clone was identified by differential screening from cDNA library of adipose tissues of Korean cattle. The clone had a total length of 1,319 nucleotides coding for 334 amino acids. It was identified as one encoding L-lactate dehydrogenase H chain (LDH-B). Comparison of the deduced amino acid sequences of bovine LDH-B with those of pig, human, rat, and mouse showed 98%, 98%, 97%, and 96% identity, respectively. Food deprivation for 48 h increased mRNA levels of LDH-B gene in adipose tissues of Korean cattle compared to fed- and 6 h refed- tissues. The expression of obese mRNA was examined for individual adipose tissue from several fat depots. Fasting induced expression of LDH-B gene in subcutaneous adipose tissues, but it did not affect expression levels in abdominal, perirenal and intramuscular tissues. Results demonstrate that induction of LDH-B gene during fasting may represent a metabolic shift from anaerobic state to aerobic predominance in fasted adipose tissues and that its responses to fasting are different among several adipose tissues.

A STUDY ON THE OSTEOGENIC DIFFERENTIATION OF ADIPOSE-DERIVED ADULT STEM CELL (지방조직 유래 줄기세포의 조골세포로의 분화에 대한 실험적 연구)

  • Lee, Eui-Seok;Jang, Hyon-Seok;Kwon, Jong-Jin;Rim, Jae-Suk
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.30 no.2
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    • pp.133-141
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    • 2008
  • Stem cells have self-renewal capacity, long-term viability, and multiline age potential. Adult bone marrow contains mesenchymal stem cells. Bone marrow-derived mesenchymal stem cells (BMSCs) are progenitors of skeletal tissue components and can differentiate into adipocytes, chondrocytes, osteoblasts, and myoblasts in vitro and undergo differentiation in vivo. However, the clinical use of BMSCs has presented problems, including pain, morbidity, and low cell number upon harvest. Recent studies have identified a putative stem cell population within the adipose tissue. Human adipose tissue contains pluripotent stem cells simillar to bone marrow-derived stem cells that can differentiate toward the osteogenic, adipogenic, myogenic, and chondrogenic lineages. Human adipose tissue-derived stem cells (ATSCs) could be proposed as an alternative source of adult bone marrow stem cells, and could be obtained in large quantities, under local anesthesia, with minimal discomfort. Human adipose tissue obtained by liposuction was processed to obtain ATSCs. In this study, we compared the osteogenic differentiation of ATSCs in a specific osteogenic induction medium with that in a non-osteogenic medium. ATSCs were incubated in an osteogenic medium for 28 days to induce osteogenesis respectively. Osteogenic differentiation was assessed by von Kossa and alkaline phosphatase staining. Expression of osteocyte specific bone sialoprotein, osteocalcin, collagen type I and alkaline phosphatase, bone morphogenic protein 2, bone morphogenic protein 6 was confirmed by RT-PCR. ATSCs incubated in the osteogenic medium were stained positively for von Kossa and alkaline phosphatase staining. Expression of osteocyte specific genes was also detected. Since this cell population can be easily identified through fluorescence microscopy, it may be an ideal source of ATSCs for further experiments on stem cell biology and tissue engineering. The present results show that ADSCs have an ability to differentiate into osteoblasts. In the present study, we extend this approach to characterize adipose tissue-derived stem cells.

Effect of swimming exercise on anti-angiogenesis of white adipose tissue in high-fat diet-fed female ovariectomized mice (고지방식이를 섭취한 난소절제 암컷 쥐의 수영운동이 백색지방조직의 항혈관신생에 미치는 효과)

  • Jeong, Sun-Hyo
    • Journal of the Korean Applied Science and Technology
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    • v.37 no.3
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    • pp.385-397
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    • 2020
  • This study investigated whether swimming exercises improves obesity through regulation of angiogenesis in white adipose tissue. Female mice with high-fat diets were divided into sham-operated group (Sham), ovariectomized group (OVX), and swim-trained ovariectomized group (OVX + Swim). Compared to the Sham, OVX increased body weight, adipose tissue mass and size of adipocyte. However, these factors (: such as body weight, adipose tissue mass and size of adipocyte) of OVX + Swim decreased compared with OVX. Compared with the Sham, OVX increased the mRNA expression of angiogenic activator and MMPs and decreased the mRNA expression of angiogenic inhibitors in white adipose tissue. But OVX + Swim decreased the mRNA expression of angiogenic activator and MMPs and increased the mRNA expression of angiogenic inhibitors in white adipose tissue, compared with the OVX. Theses results suggested that swimming exercises the angiogenesis in white adipose tissue, resulting to improve obesity in high-fat diet-fed female OVX mice.

THE EFFECT OF GROWTH FACTORS ON OSTEOGENIC DIFFERENTIATION OF ADIPOSE TISSUE-DERIVED STROMAL CELLS (지방기질유래 줄기세포의 골 분화 시 성장인자의 효과)

  • Kim, Uk-Kyu;Choi, Yeon-Sik;Jung, Jin-Sup
    • Journal of the Korean Association of Oral and Maxillofacial Surgeons
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    • v.32 no.4
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    • pp.327-333
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    • 2006
  • Future cell-based therapies such as tissue engineering will benefit from a source of autogenous pluripotent stem cells. There are embryonic stem cells (ESC) and autologous adult stem cells, two general types of stem cells potentilally useful for these applications. But practical use of ESC is limited due to potential problems of cell regulation and ethical considerations. To get bone marrow stem cells is relatively burden to patients because of pain, anesthesia requirement. The ideal stem cells are required of such as the following advantages: easy to obtain, minimal patient discomfort and a capability of yielding enough cell numbers. Adipose autologus tissue taken from intraoral fatty pad or abdomen may represent such a source. Our study designed to demonstrate the ability of human adipose tissue-derived stromal cells (hATSC) from human abdominal adipose tissue diffentiating into osteocyte and adipocyte under culture in vitro conditions. As a result of experiment, we identified stromal cell derived adipose tissue has the multilineage potentiality under appropriate culture conditions. And the adipose stromal cells expressed several mesenchymal stem cell related antigen (CD29, CD44) reactions. Secondary, we compared the culture results of a group of hATSC stimulated with TGF-${\beta}$1, bFGF with a hATSC group without growth factors to confirm whether cytokines have a important role of the proliferation in osteogenic differentiation. The role of cytokines such as TGF-${\beta}$1, bFGF increased hATSC's osteogenic differentiation especially when TGF-${\beta}$1 and bFGF were used together. These results suggest that adipose stromal cells with growth factors could be efficiently available for cell-based bone regeneration.

The effects of genistein and exercise on obesity and adipose tissue inflammation in ovariectomized mice (난소절제 쥐에서 비만과 지방조직 염증에 대한 제니스테인과 운동의 영향)

  • Sun-Hyo Jeong
    • Journal of the Korean Applied Science and Technology
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    • v.40 no.2
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    • pp.244-257
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    • 2023
  • This study investigated the effects of exercise on genistein-induced adipose tissue reduction and anti-inflammation of adipose tissue in ovariectomized mice fed a high-fat diet. Compared to mice fed a high-fat diet (C), both genistein (G) or exercise only (Ex) not only decreased adipose tissue weight and adipocyte size, but also glucose and free fatty acid levels in serum, which were more effectively reduced when genistein and exercise were treated simultaneously (G/Ex). The expression of lipogenesis and inflammatory cytokine genes of both G and Ex in adipose tissue was decreased compared to C. In particular, the decrease of these genes expression in G/Ex was more effective than each treatment alone. Thus, this study revealed that simultaneous treatment of genistein and exercise resulted in more effective improvement of obesity and adipose tissue inflammation than genistein single treatment in ovariectomized mice fed a high-fat diet, and it is a result of positive regulation of lipogenesis genes. This study suggests that the exercise has a beneficial effect on anti-obesity and adipose tissue anti-inflammation of genistein.

Literature Review Study of Lipolysis Effect of Moxibustion Treatment (뜸의 지방 분해 효과에 관한 문헌적 고찰 연구)

  • Jo, Seok-In;Song, In;Hong, Kwon-Eui
    • Journal of Acupuncture Research
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    • v.29 no.5
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    • pp.119-126
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    • 2012
  • Objectives : This literature review was researched to observe the evidence of effect of moxibustion in adipose tissue decomposition. Methods : We reviewed studies which contained lipolysis effect of moxibustion treatment in Pubmed. Results : Moxibuston improves blood flow in adipose tissue and stimulates metabolism in the course of lipolysis. Many studies reported that moxibustion stimulated reptin, insulin, testosterone, 5-HT and thromboxane. Especially, moxibustion triggers the HPA axis system, which has an effect on lipometabolism. Based on such effects, moxibustion is considered to have an effect on adipose tissue decomposition. Conclusions : Although moxibution is considered to be effective in adipose tissue decomposition, futher study is needed.

The Pattern of PCBs Level in Adipose Tissue and Serum of Breast Cancer and Normal Women (유방암 환자와 정상여성의 혈액 및 지방조직 중 PCBs 형태에 관한 연구)

  • 노영만;이강숙;구정완;장경순
    • Journal of Environmental Health Sciences
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    • v.29 no.2
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    • pp.29-37
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    • 2003
  • The purpose of this study was to identify the distribution of non-ortho and mono-ortho PCB congeners and homologues in adipose tissues and sera of women with breast cancer. The collected samples were 25 adipose tissues and 33 sera from women with breast cancer. The samples from the control group were 49 adipose tissues and 52 sera. The levels of three non-ortho and eight mono-ortho PCBs identified in adipose tissue and serum samples were determined by GC/MSD and GC/ECD analyses. Non-ortho and mono-ortho PCB congeners were more dominant in the control group than in the case group for serum samples. The Tetra-PCB and the Hexa-, Hepta-PCB were more dominant in tale and control groups, respectively. The level of PCB homologues in normal women was similar to that of the normal human milk samples. However, the levels of PCB homologues from breast cancer patients were almost same the level of sample from environment. As a result of this study, it is suggested that breast cancer could be related to environmental factors such as PCB level in stack gas and soil sample. More extended research should be to verify this result.

Anti-Obesity Effect of Fructus Pyri Pyrifoliae Extract Fermented by Lactic-Acid Bacteria on Rats

  • Chu, Hanna;Kim, Jeongsang
    • Applied Microscopy
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    • v.48 no.3
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    • pp.62-72
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    • 2018
  • This study investigated the anti-obesity effect of a pear (Fructus Pyri Pyrifoliae) extract fermented by lactic-acid bacteria on obesity induced by a high-fat diet in rats. Body-weight measurement, blood analysis, and light microscope observation of adipose tissue in liver and epididymis were conducted after 8 weeks. Gene expression of leptin, adiponectin, and tumor necrosis $factor-{\alpha}$ ($TNF-{\alpha}$) in liver cells were also investigated. Compared to CON, PFA and PFB showed 8% weight reduction along with weight reduction of adipose tissue in liver and epididymis. Observing the microstructure of liver cells showed that lipid droplets were smaller in PFA and PFB than in CON. We confirmed that Fructus Pyri Pyrifoliae extract fermented by lactic-acid bacteria can affect gene expression of leptin, adiponectin, and $TNF-{\alpha}$ in liver cells, showing an obesity treatment effect. From the results above, it was observed that weight gain from increased gene expression in adipose cells as well as from the increased proportion of adipose cells caused by a high-fat diet can be statistically significantly reduced by taking Fructus Pyri Pyrifoliae extract fermented by lactic-acid bacteria. Therefore, Fructus Pyri Pyrifoliae extract fermented by lactic-acid bacteria can be effective for preventing and treating obesity by reducing weight and adipose cells.

Influence of Food Waste Compost on the Yield and Mineral Content of Ganoderma lucidum, Lentinula edodes, and Pholiota adipose Fruiting Bodies

  • Jo, Eun-Young;Choi, Ji-Young;Choi, Jong-Woon;Ahn, Johng-Hwa
    • Mycobiology
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    • v.41 no.4
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    • pp.210-213
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    • 2013
  • The objectives of this study were to evaluate applicability of food waste compost (FWC) as a substrate for cultivation of Ganoderma lucidum, Lentinula edodes, and Pholiota adipose, and to determine contents of Ca, Mg, Na, and K in fruiting bodies (FB). FB yield per substrate in FWC-free controls was $53{\pm}4g/kg$ for G. lucidum, $270{\pm}90g/kg$ for L. edodes, and $1,430{\pm}355g/kg$ for P. adipose. Substrates supplemented with FWC showed the highest FB production at FWC content of 10% for G. lucidum ($64{\pm}6g/kg$), and 13% for L. edodes ($665{\pm}110g/kg$) and P. adipose ($2,345{\pm}395g/kg$), which were 1.2~2.5 times higher than the values for the controls. P. adipose contained higher amounts of mineral elements than the other species. Ca, Mg, Na, and K content in FB did not show a significant relation to FWC content.