• Title/Summary/Keyword: 중성수

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Seasonal Variation of Lipids and Fatty Acids of Sharp Toothed Eel(Muraenesox cinereus) (갯장어의 일반성분과 지방산의 계절적 변화)

  • 안창범;신태선
    • Journal of Life Science
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    • v.12 no.3
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    • pp.233-241
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    • 2002
  • Seasonal variation of uraenesox cinereus) muscle was investigated. Crude lipid content varied from 3.85 to 12.59 g/100g, comprising the highest content in November. The major fatty acids of total lipid, neutral lipid, and phospholipid were C16:0, C23:0, C16:1, C18:1, C20:5, and C22:6, but in phospholipid, Cl8:3n-6 was also the major fatty acid. The C22:6 content of the neutral lipid was much lower compared to that of the total lipid and phospholipid. The content of polyunsaturated fatty acids (ranged from 73.93 to 66.23%) in phospholipid was higher than that of any other lipid fraction. In glycolipid, C20:1 and C14:1 were higher compared to those of any other lipid fraction, but C20:5 and C22:6 were lower. The annual average ratio of n-3 to n-6 of total lipid, neutral lipid, phospholipid, and glycolipid was 10.82, 12.27, 6.63, and 6.50, respectively. The particular trend of seasonal variation of fatty acid composition was not showed in total and neutral lipid. However, the samples caught in September and November had a high crude lipid content with a significantly lower content of polyunsaturated fatty acids in phospholipid. Also, the content of monounsaturated fatty acids in glycolipid was lower in samples of September, November, and January.

Prediction Model for Hypertriglyceridemia Based on Naive Bayes Using Facial Characteristics (안면 정보를 이용한 나이브 베이즈 기반 고중성지방혈증 예측 모델)

  • Lee, Juwon;Lee, Bum Ju
    • KIPS Transactions on Software and Data Engineering
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    • v.8 no.11
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    • pp.433-440
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    • 2019
  • Recently, machine learning and data mining have been used for many disease prediction and diagnosis. Chronic diseases account for about 80% of the total mortality rate and are increasing gradually. In previous studies, the predictive model for chronic diseases use data such as blood glucose, blood pressure, and insulin levels. In this paper, world's first research, verifies the relationship between dyslipidemia and facial characteristics, and develops the predictive model using machine learning based facial characteristics. Clinical data were obtained from 5390 adult Korean men, and using hypertriglyceridemia and facial characteristics data. Hypertriglyceridemia is a measure of dyslipidemia. The result of this study, find the facial characteristics that highly correlated with hypertriglyceridemia. FD_43_143_aD (p<0.0001, Area Under the receiver operating characteristics Curve(AUC)=0.652) is the best indicator of this study. FD_43_143_aD means distance between mandibular. The model based on this result obtained AUC value of 0.662. These results will provide a basis for predicting various diseases with only facial characteristics in the screening stage of disease epidemiology and public health in the future.

Inhibitory Effects of Ethanol Extract of Red Sweet Pepper (Capsicum annuum L.) on Triglyceride Biosynthesis in Rhodosporidium toruloides (Rhodosporidium toruloides에서의 적색 파프리카 에탄올 추출물의 중성지방 억제 효과)

  • Kang, Ju-Won;Lee, Seung-Je;Ahn, Byung-Yong
    • Korean Journal of Plant Resources
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    • v.34 no.2
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    • pp.186-196
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    • 2021
  • In this study, we investigated inhibitory effect of red sweet pepper (Capsicum annuum L.) on triglyceride biosynthesis in Rhodosporidium toruloides. There was no significant difference in the total lipid content of all the experimental groups including 0.02, 0.1 and 0.5% (w/v) of red sweet pepper 70% ethanol extract treatment (RSPE). However, the triglyceride content was significantly decreased in RSPE group campared to the control group. When the formation of lipid droplet in the oleaginous yeast was examined, a small amount of fluorescence was observed compared to the control as the concentration of RSPE increased. The number of cells and free fatty acid increased in a concentration-dependent manner. These results suggest that RSPE has an anti-obesity effect.

Correlationship researches of Apolipoprotein A1 in body mass index (체질량지수에 따른 Apolipoprotein A1 상관성연구)

  • Kim, Jean-Soo;Lee, Dong-Yeop
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.13 no.11
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    • pp.5345-5349
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    • 2012
  • Recently obesity from the child until being early in the adult, there is to an increase tendency. The obesity influences to various metabolicdisease and there is a possibility of an effect in relationship disease of the heart, brain vascular system etc. This research analyzed the interrelation -ship of apolipoprotein AI consistency and body mass index. It used spss 19.0 with t-test and a regression analysis. Analytical result the interrelationship of apolipoprotein AI and body mass index was -0.484 (p=0.01). The high density cholesterol was 0.89 (p=0.01). The trigriceride was -0.88 (p=0.01). Free fatty acid were not interrelationship. Conclusively, interrelationship of apolipoprotein AI and body mass index was not high. Encourage to examine trigriceride or cholesterol and prevent Arteriosclerosis.

Flavor Components in the Squid Processing (오징어 가공중의 향기성분)

  • LEE Jong-Ho;CHOI Byeong-Dae;LEE Kang-Ho;RYU Hong-Soo
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.22 no.5
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    • pp.370-374
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    • 1989
  • Volatile components in natural and basic fraction of the steam distillation extraction method from squid during processing were analysed by GC and GC-MS equipped with a fused silica capillary column. Thirty eight compounds were identified; they were 31 compounds from neutral, 7 compounds from basic fraction. The main components flavor of squid were 3-methylthiophene, 2-methyl-2-hexanthiol, 1-penten-3-ol, 3-penten-2-ol, 3-ethyl-1,4-hexadiene, 1-hydroxy-2-propanone, hexenal and benzaldehyde etc.. Especially, (E, E)-3,-5-octadecanal were detected during the boiled. 2,5-dimethyl pyrazine, 2-ethyl-6-pyra-zine, 2,3,5-trimethyl pyrazine and 2-ethyl-3,5-dimethyl pyrazine basic compounds, which have respectively a burnt and roasted odor, are considered to be important for the characteristic basic fraction of squid.

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Generation of neutral stream from helicon plasma and its application to Si dry etching (헬리콘 플라즈마로부터 중성입자 흐름의 생성 및 이를 이용한 실리콘의 건식식각)

  • 정석재;양호식;조성민
    • Journal of the Korean Vacuum Society
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    • v.7 no.4
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    • pp.390-396
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    • 1998
  • Neutral stream was generated from Helicon plasma source and was applied to etch silicon for the purpose of preventing physical and electrical damages from the bombardment of charged particles with high translation energy. By installing a permanent magnet and applying positive bias beneath the substrate, the cusp-magnetic and electric fiddles were generated in order to remove the charged particles from the downstream plasma. As a result, the electron density and ion density in the vicinity of the substrate were reduced by 1/1000 and 1/10, respectively. The directional etching of silicon was observed and the etch rate was found to be very low to below 100 $\AA$/min at a pressure of $8.5{\times}10^{-4}$ Torr, when $Cl_2$ and 10% $SF_{sigma}$ etchant gases were used.

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Effects of Orotic Acid and Di-(2-Ethylhexyl)Phthalate on Microsomal Triglyceride Transfer Protein(MTP) Activity and mRNA Levels in Liver and Intestine of Rats (Orotic acid와 Di-(2-ethylhexyl)phthalate 투여 흰쥐의 간장 및 소장 Microsomal Triglyceride Transfer Protein(MTP) 활성과 mRNA 수준에 미치는 영향)

  • Cha, Jae-Young;Cho, Young-Su
    • Korean Journal of Food Science and Technology
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    • v.33 no.4
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    • pp.492-496
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    • 2001
  • Microsomal triglyceride transfer protein(MTP) activity and mRNA level were investigated in the liver and small intestine of rats fed on di-(2-ethylhexyl)phthalate(DEHP) and orotic acid(OA) as serum triglyceride-reducing agents. The concentration of liver triglyceride was significantly increased in the OA group, but that was not increased in the DEHP group compared with the control group. The concentration of serum triglyceride was significantly decreased in the OA and DEHP groups compared with the control group, but this reduction was more pronounced in the OA group. MTP activity and mRNA level in liver were decreased in the OA group compared with the control group, while MTP activity in the small intestine was increased in the OA group compared with the control group. MTP activities and MTP mRNA levels in both liver and small intestine had no influence by the DEHP dietary feeding, despite the triglyceride-lowering action, compared with the control dietary feeding. The activity of liver microsomal phosphatidate phosphohydrolase(PAP), the rate-limiting enzyme in triglyceride synthesis, was increased in the OA group compared with the control group, but that of cytosolic PAP was decreased in the DEHP group compared with the control group. The result suggest that MTP activity and MTP mRNA level are involved in the triglyceride-lowering action of OA, but those are not involved in that of DEHP.

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Transport System of Specific Neutral Amino Acids in Suspension-Cultured Cells (현탁배양 세포내에서 특수 중성 아미노산의 수송)

  • Bong-Heuy CHO
    • Korean Journal of Plant Tissue Culture
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    • v.21 no.4
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    • pp.201-206
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    • 1994
  • The influx of glycine, valine, alanine, and histidine was inhibited by all tested neutral amino acids competitively and the reciprocal inhibitory studies showed the neutral amino acids possess the same transport system as neutral amino acids process to the same catalytic site of one carrier to each other, The molecules of histidine were transported actively as a neutral form through the neutral amino acid transport system but were not transported as a charged form. The Km values of the neutral amino acid transport system have been divided into three different category on basis of the affinity to the carrier, below 0.1mM, etween 0.1ImM-0.5mM and above 0.5mM. The $V_{max}$ was between $3.12{\mu}mole{\cdot}h^{-1}{\cdot}g$ fresh $weight^{-1}\;-\;15.1\;{\mu}mole{\cdot}h^{-1}{\cdot}g$ fresh $weight^{-1}$. Neutral amino acids cotransported with one $H^{+}per$ one molecule and one $K^{+}-efflux$ per one molecule for charge compensation. Histidine cotransported with proton per one molecule, however the movement of cotransported proton can't detectable because of the release of proton from the charged molecules of histidine in the medium.

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Chemical Composition of Cultured and Wild Codonopsis lanceolata Roots of Different Age Groups -II. Separation of the Lipid Fractions- (더덕(沙蔘)의 년근별(年根別) 화학성분(化學性分)에 관(關)한 연구(硏究) -제2보(第2報) : 지질분획(脂質分劃)의 분리(分離)-)

  • Park, Boo-Duck;Park, Yong-Gone;Choi, Kwang-Soo
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.14 no.3
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    • pp.280-283
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    • 1985
  • Lipid fractions of the roots of cultured (five years old) and wild (eight years old) Codonopsis lanceolata were analyzed. The most abundant fraction of the lipids extracted from cultured and wild roots of C. lanceolata was neutral lipid and the next came phospholipid and glycolipid in descending order. The percentage, however, of the neutral lipid in total lipid was comparatively low, while that of phospholipid, particularly high; 41.30% and 29.34% in that of cultured and wild one respectively. The richest fraction of neutral lipid was triglyceride; 39.49% and 32.88% in the cultured and the wild respectively, and followed by sterol esters and free acid. Noticed amounts of sterol esters and monoglycerides which is able to be used as an emulsifiers, were contained in the neutral lipid of roots; 27.74% and 5.11% respectively. The unsaturated fatty acid fraction of the total lipid hydrolyzate contained in cultured and wild C. lanceolata roots was 72.87% and 74.37% respectively. The main fatty acid contained in the total lipid hydrolyzate was linoleic acid, and followed by linolenic acid palmitic acid. The main saturated fatty acid was palmitic acid and lauric acid.

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Significance of Non HDL-cholesterol and Triglyceride to HDL-cholesterol Ratio as Predictors for Metabolic Syndrome among Korean Elderly (한국 노인의 대사증후군 예측인자로서 혈중 Non HDL 콜레스테롤과 중성지방/HDL 콜레스테롤 비의 의의)

  • Hong, Seung Bok;Shin, Kyung-A
    • Korean Journal of Clinical Laboratory Science
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    • v.50 no.3
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    • pp.245-252
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    • 2018
  • We evaluated the possible clinical application of Non HDL-cholesterol and triglyceride to HDL-cholesterol ratio as a metabolic syndrome predictor for the elderly in Korea. 1,543 elderly persons aged 65 years or older who visited the health examination center of Gyeonggi Regional General Hospital from January 2015 to December 2017 and had a health checkup were enrolled in this study. Metabolic syndrome was diagnosed based on the American Heart Association/National Heart, Lung, and Blood Institute (AHA/NHLBI) standards. Abdominal obesity was assessed by the Asia-Pacific standards presented at the World Health Organization (WHO) West Pacific Region. Non-HDL-cholesterol was calculated as the difference between total cholesterol and HDL-cholesterol. The metabolic syndrome predictive power was higher for triglyceride to HDL-cholesterol ratio than for Non HDL-cholesterol. After correcting for related factors, triglyceride to HDL-cholesterol ratio was higher in the $4^{th}$ quartile, which had a higher risk of developing metabolic syndrome, than in the $1^{st}$ quartile. The optimal cutoff value for the triglyceride to HDL-cholesterol ratio that predicts the onset of metabolic syndrome was 2.8. triglyceride to HDL-cholesterol ratio can be a simple and practical indicator of the risk of metabolic syndrome.