• Title/Summary/Keyword: apolipoprotein A1

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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.

The Effect of Apolipoprotein E Polymorphism on Hypertension in Korean Adults (고혈압과 apolipoprotein E의 다형성)

  • Choi, Dae-Kyung;Kim, Geum-Ha;Park, Sang-Hyun;Im, Jeong-Soo
    • Journal of agricultural medicine and community health
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    • v.32 no.2
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    • pp.87-96
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    • 2007
  • Background: Apolipoprotein E has been one of the most thoroughly studied genetic polymorphisms, particularly for its effects on lipid profiles and coronary heart disease risk. This study investigated the relationship between the apolipoprotein E polymorphism and essential hypertension in a Korean population. Methods: The subjects (n=1,243) were participants in a population-based study in Incheon metropolitan City, Korea. The apolipoprotein E polymorphism was determined using a polymerase chain reaction method. Results: The frequencies of the genotypes did not differ significantly between the hypertensive groups (60.0% ε2 / ε2, 30.8% ε2 / ε3, 44.4% ε2 / ε4, 33.3% ε3 / ε3, 32.3% ε3 / ε4, and 15.4% ε4 / ε4; p=0.498). After adjusting for other risk factors, genotypes were not associated with hypertension(OR 5.74, 95% CI 0.81-40.76, ε2 / ε2 vs. ε3 / ε3; OR 0.94, 95% CI 0.60-1.47, ε2 / ε3 vs. ε3 / ε3; OR 1.21, 95% CI 0.30-4.89, ε2 / ε4 vs. ε3 / ε3; OR 0.79, 95% CI 0.56-1.13, ε3 / ε4 vs. ε3 / ε3; OR 0.29, 95% CI 0.06-1.45, ε4 / ε4 vs. ε3 / ε3). Conclusions: These findings suggest that the apolipoprotein E polymorphism is not associated with hypertension.

Effect of Individual Fatty Acids on Synthesis and Secretion of Apolipoprotein and Lipoprotein in hep-G2 Cells

  • Ryowon Choue
    • Journal of Nutrition and Health
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    • v.27 no.9
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    • pp.910-923
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    • 1994
  • The effects of individual fatty acids, differing in their degree of unsaturation(18:0, 18:1, 18:2 and 18:3) on the biosynthesis and secretion and lipids were investigated in Hep-G2 cells. Synthesis of apolipoprotein was measured by the incorporation of 3H-leucine into apolipoprotein(d<1.21g/ml) and synthesis of lipids was measured by the incorporation of 3H-glycerol and 14C-acetate into various lipid classes. Inclusion of 1.0mM of each fatty acids into the culture medium significantly increased the synthesis of total apolipoprotein and Apo B(p<0.05). However, addition of fatty acid did not affect the synthesis of cellular and medium protein. Among different fatty acids tested, oleic acid had the greatest effect on Apo B synthesis. While stearic, linoleic and linolenic acid, all had similar effects. The secretion of triglyceride into the medium markedly increased in all fatty acid groups being 5-6 times over the albumin control. The triglyceride secretion was the highest int he oleic acid group. The secretion of phospholipid and cholesterol also increased with triglyceride output. A positive relationship existed between the output of lipoprotein-triglyceride and Apo B. Since the synthesis of Apo B was significantly increased when various fatty acids were included into the culture medium, part of the apparently stimulated synthesis of the apolipoprotein may be in response to the increased formation and secretion of lipoprotein lipids.

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Solution Structure of pA2, the Mimotopic Peptide of Apolipoprotein A-I, by NMR Spectroscopy

  • Won, Ho-Shik
    • Bulletin of the Korean Chemical Society
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    • v.32 no.11
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    • pp.4016-4020
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    • 2011
  • A number of mimetic peptides of apolipoprotein A-I, a major component for high density lipoproteins (HDL), were screened from the phase-displayed random peptide library by utilizing monoclonal antibodies (A12). A mimetic peptide for A12 epitope against apolipoprotein A-I was selected as FVLVRDTFPSSVCCP(pA2) exhibiting 45% homology with Apo A-I in the BLAST search. Solution structure determination of this mimotope was made by using 2D-NMR data and NMR-based distance geometry (DG)/molecular dynamic calculations. The resulting DG structures had low penalty value of 0.4-0.6 ${\AA}^2$ and the total RMSD of 0.7-1.7 ${\AA}$. The mimotope pA2 exhibited a characteristic ${\beta}$-turn conformation from Val[2] to Phe[8] near Pro[9] residue.

Solution State Structure of pA1, the Mimotopic Peptide of Apolipoprotein A-I, by NMR Spectroscopy

  • Kim, Hyo-Joon;Won, Ho-Shik
    • Bulletin of the Korean Chemical Society
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    • v.32 no.9
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    • pp.3425-3428
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    • 2011
  • Apolipoprotein A-I (Apo A-I) is a major component for high density lipoproteins (HDL). A number of mimetic peptides of Apo A-I were screened from the phase-displayed random peptide library by utilizing monoclonal antibodies (A12). Mimetic peptide for A12 epitope against Apo A-I was selected as CPFARLPVEHHDVVGL (pA1). From the BLAST search, the mimetic peptide pA1 had 40% homology with Apo A-I. As a result of the structural determination of this mimotope using homo/hetero nuclear 2D-NMR techniques and NMR-based distance geometry (DG)/molecular dynamic (MD) computations, DG structure had low penalty value of 0.3-0.7 ${\AA}^2$ and the total RMSD was 0.6-1.6 ${\AA}$. The mimotope pA1 exhibited characteristic conformation including a ${\beta}$-turn from Pro[7] to His[11].

Apolipoprotein E Polymorphism and Cognitive Function Change of the Elderly in a Rural Area, Korea (일개 농촌지역 노인의 아포지단백 E 다형성과 인지기능 변화)

  • Kim, Sang-Kyu;Hwang, Tae-Yoon;Lee, Kyeong-Soo;Kang, Pock-Soo;Cho, Hee-Soon;Bae, Young-Kyung
    • Journal of Preventive Medicine and Public Health
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    • v.42 no.4
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    • pp.261-266
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    • 2009
  • Objectives : The aim of this study is to examine the cognitive function change related to aging, the incidence of cognitive impairment, and the association between apolipoprotein E polymorphism and cognitive impairment through a follow-up of the elderly with normal cognitive ability at baseline. Methods : Two hundred and fifteen subjects aged 65 and over were surveyed in February, 1998 (baseline survey), and their cognitive function was assessed again in 2003 1st follow-up) and the once again in 2006 (2nd follow-up). Ninety one subjects completed all surveys up through the 2nd follow-up and their cognitive function scores using MMSE-K (Korean Version of the Mini-Mental State Examination) and the distribution of apolipoprotein E allele were analyzed. Results : The cognitive function scores decreased with aging and the difference between baseline and the 2nd follow-up scores of the study increased with the age group. The incidence rate of cognitive impairment through an 8-year follow-up was 38.5% and higher in older age groups. Age was the only significant factor for incidence of cognitive impairment, but there was no significant association between apolipoprotein E genotype and incidence of cognitive impairment. Conclusions : The cognition of the elderly decreased with aging and the association of apolipoprotein E genotype with incidence of cognitive impairment was not significant in this study. To confirm the association between apolipoprotein E polymorphism and incidence of cognitive impairment further studies will be needed.

A Study on the Serum Lipid, Apolipoprotein Levels and Their Correlations in Healthy Adults of Gyeongnam Area (경남지역 중${\cdot}$장년층의 혈청지질, 아포지단백질의 농도 및 상호관련성에 관한 연구)

  • Lee, Hoe-Seon;Park, Mi-Young;Kim, Gyeong-Eup;Cheong, Hyo-Sook;Kim, Sung-Hee
    • Journal of Nutrition and Health
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    • v.40 no.6
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    • pp.526-530
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    • 2007
  • The purpose of this study was investigating serum lipid, apolipoprotein levels and their correlations in healthy adults of Gyeongnam area. The BMI (body mass index) was significantly higher (p < 0.001) in male (25.2 ${\pm}$ 2.7 $kg/m^2$) than female (23.8 ${\pm}$ 1.5 $kg/m^2$), however PBF (percent body fat) was significantly higher (p < 0.001) in female (29.6 ${\pm}$ 4.3%) than male (22.7 ${\pm}$ 5.0%). The WHR (waist to hip ratio) and blood pressure in the groups showed there was no significant differences. The levels of serum total cholesterol, LDL-cholesterol and apolipoprotein B were significantly higher (p < 0.01) in male (208.7 ${\pm}$ 27.7 mg/dl, 129.0 ${\pm}$ 26.9 mg/dl, 1.0 ${\pm}$ 0.2 g/L) than female (193.6 ${\pm}$ 29.1 mg/dl, 112.5 ${\pm}$ 29.5 mg/dl, 0.9 ${\pm}$ 0.2 g/L, but HDL-cholesterol level was significantly higher (p < 0.01) in female (54.9 ${\pm}$ 6.6 mg/dl) than male (49.9 ${\pm}$ 7.3 mg/dl). The LDL-C/HDL-C, Apo B/Apo A-I and AI (atherogenic index) were significantly higher (p < 0.001) in male (2.6 ${\pm}$ 0.6, 0.8 ${\pm}$ 0.2, 3.3 ${\pm}$ 0.7) than female (2.1 ${\pm}$ 0.5, 0.6 ${\pm}$ 0.2, 2.6 ${\pm}$ 0.5). The triglyceride level was positively correlated with apolipoprotein B concentration (p < 0.05) and negatively correlated with HDL-cholesterol concentration (p < 0.05), however no significant correlation was found with apolipoprotein A-I. According to these results, we conclude that male adults are expecting higher incidence of cardiovascular disease than female adults and we suggest the serum triglyceride should be kept normal level for the prevention of these diseases.

A Prospective Study on an Association between Apolipoprotein E ${\varepsilon}4$ and Cognitive Change in Community-Dwelling Elders with Alzheimer's Disease (일 지역 알츠하이머병 노인에서 Apolipoprotein E ${\varepsilon}4$와 인지변화의 연관에 대한 전향적 연구)

  • Kang, Min Sung;Moon, Seok Woo
    • Korean Journal of Biological Psychiatry
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    • v.20 no.3
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    • pp.104-110
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    • 2013
  • Objectives : The aim of this study was to examine the prospective impact of the apolipoprotein E (APOE) ${\varepsilon}4$ on cognitive performance in the community-dwelling elderly individuals with Alzheimer's disease (AD). Methods : The total number of subjects was 30 (12 men and 18 women) who were diagnosed with AD from a Korean project of "Early Detection of Dementia". People aged 65-85 years were included in the analysis. The eight neuropsychological domains from the Korean version of Consortium to Establish a Registry of Alzheimer's Disease (CERAD-K) were conducted to test subjects. They have been followed at 24-month intervals with the same assessments at each interval. Their cognitive performance at 2 year intervals was compared by the occurrence of the APOE ${\varepsilon}4$. Results : The impact of ${\varepsilon}4$ allele was significant in the Word List Memory Test (WLMT, F = 4.345, df = 1, p = 0.021) and Word List Recall Test (WLRT, F = 5.569, df = 1, p = 0.033). Conclusions : The APOE ${\varepsilon}4$ allele was significantly correlated especially with verbal episodic memory domain in community-dwelling elders diagnosed with AD.

The Pst 1 Polymorphism of the Human Apolipoprotein AI Gene in Korean Elite Athletes

  • Kang, Byung-Yong;Kim, Hyun-Hee;Lee, Kang-Oh
    • Animal cells and systems
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    • v.7 no.1
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    • pp.69-73
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    • 2003
  • Serum lipid and lipoprotein levels are influenced by genetic factors, and exorcise increases the concentrations of cardio-protective parameters such as high-density lipoprotein cholesterol (HDL-cholesterol) and apolipoproteinAI (apoAI) in human serum. In the present study, we tested the effect of adaptation to endurance exercise on the association of a genetic polymorphism (Pst 1 RFLP) in the apoAI gene with these biochemical parameters. The genotype and allele frequencies for the Pst 1 RFLP were not significantly different between the elite athletes and sedentary controls (P>0.05). There were also no significant associations between the Pst 1 RFLP of the apoAI gene and the biochemical parameters in elite athletic group. Thus, our results suggest that the Pst 1 RFLP of the apoAI gene was not significantly associated with the serum apoAI and HDL-cholesterol concentrations as well as athletic performance in Koreans.

Ginsenoside-Rp1-induced apolipoprotein A-1 expression in the LoVo human colon cancer cell line

  • Kim, Mi-Yeon;Yoo, Byong Chul;Cho, Jae Youl
    • Journal of Ginseng Research
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    • v.38 no.4
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    • pp.251-255
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    • 2014
  • Background: Ginsenoside Rp1 (G-Rp1) is a novel ginsenoside derived from ginsenoside Rk1. This compound was reported to have anticancer, anti-platelet, and anti-inflammatory activities. In this study, we examined the molecular target of the antiproliferative and proapoptotic activities of G-Rp1. Methods: To examine the effects of G-Rp1, cell proliferation assays, propidium iodine staining, proteomic analysis by two-dimensional gel electrophoresis, immunoblotting analysis, and a knockdown strategy were used. Results: G-Rp1 dose-dependently suppressed the proliferation of colorectal cancer LoVo cells and increased their apoptosis. G-Rp1 markedly upregulated the protein level of apolipoprotein (Apo)-A1 in LoVo, SNU-407, DLD-1, SNU-638, AGS, KPL-4, and SK-BR-3 cells. The knockdown of Apo-A1 by its small-interfering RNA increased the levels of cleaved poly(ADP-ribose) polymerase and p53 and diminished the proliferation of LoVo cells. Conclusion: These results suggest that G-Rp1 may act as an anticancer agent by strongly inhibiting cell proliferation and enhancing apoptosis through upregulation of Apo-A1.