• 제목, 요약, 키워드: apolipoprotein

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한국인 정신분열병 환자에서 Apolipoprotein E 유전자의 다형성 (Genetic Polymorphisms of Apolipoprotein E in Korean Schizophrenic Patients)

  • 조광현;정상근;황익근
    • 생물정신의학
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    • v.10 no.2
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    • pp.116-120
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    • 2003
  • Objectives:Although polymorphisms of apolipoprotein E have been investigated in many neuropsychiatric disorders, results were controversial and even contradictory. The purpose of this study was to investigate the genotypes of apolipoprotein E in schizophrenia and healthy controls, and to compare them in two groups in terms of distribution of apolipoprotein E genotype and allele. Method:Using polymerase chain reaction and amplified refractory mutation system, apolipoprotein E genotypes were identified in 77 schizophrenics and 115 healthy control persons. Results:The results were as follows 1) When genotypes of apolipoprotein E were classified into ${\varepsilon}2/2$, ${\varepsilon}2/3$, ${\varepsilon}2/4$, ${\varepsilon}3/3$, ${\varepsilon}3/4$, ${\varepsilon}4/4$ according to phenotypes, there were no statistical differences in genotypes between two groups 2) In terms of allele frequency, there were also no statistical differences between two groups Conclusion:These results suggest that genotypes and alleles of apolipoprotein E seem to be unrelated to the pathogenesis of schizophrenia.

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

  • 김진수;이동엽
    • 한국산학기술학회논문지
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    • v.13 no.11
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    • pp.5345-5349
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    • 2012
  • 최근 비만은 소아에서부터 성인에 이르기까지 증가 추세에 있다. 비만은 여러 대사 질환에 영향을 주며 특히 심혈관계, 뇌혈관계 등 혈관성 질환에 영향을 줄 수 있다. 이 연구는 혈관성 질환에 관여하는 apolipoprotein AI의 농도가 체질량지수와의 어떤 상관성을 가지고 있는지 알아 보고자 실시하였다. 또한 콜레스테롤과 중성지방, 유리지방산과도 분석하여 보았다. 분석방법으로 SPSS 19.0을 이용하였으며 t-test와 회귀분석을 이용하였다. 분석 결과 apolipoprotein AI의 농도는 체질량지수와는 상관성이 있었지만 -0.484 (p=0.01)으로 약한 역 상관성을 보였고, 고밀도 콜레스테롤은 0.89 (p=0.01)으로 강한 상관성, 중성지방은 -0.88 (p=0.01)으로 강한 역상관성을 나타내었다. 유리지방산은 상관성이 없는 걸로 분석되어 졌다. 결론적으로 Apolipoprotein AI 검사는 체질량지수와의 상관성은 그리 높지 않았으며 비만에 영향을 줄 수 있는 중성지방이나 콜레스테롤등을 같이 검사하여 동맥경화를 예방 할 수 있는 조절인자로 관리되어 져야 한다.

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

  • 김상규;황태윤;이경수;강복수;조희순;배영경
    • 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.

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

  • 최대경;김금하;박상현;임정수
    • 농촌의학ㆍ지역보건
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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.

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.

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

  • 이효선;박미영;김경업;정효숙;김성희
    • 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.

중.장년층의 혈청 지질 및 아포지단백질의 농도와 관련된 요인 분석 (Association among Serum Lipid, Apolipoprotein Levels and Related Factors in Healthy Adults)

  • 이효선;김경업;박미영;윤희상;최선영;김성희
    • 동아시아식생활학회지
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    • v.18 no.6
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    • pp.949-958
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    • 2008
  • This study was carried out to examine the association of age, nutrient intake, alcohol drinking and smoking on serum lipid and apolipoprotein levels in 100 healthy adults (54 males and 46 females). The serum total cholesterol, low density lipoprotein cholesterol (LDL-C) (p<0.05), apolipoprotein B (Apo B) levels, LDL-C:high density lipoprotein cholesterol (HDL-C) ratio, Apo B:apolipoprotein(Apo A-I) ratio and atherogenic index (AI) (p<0.001) were significantly higher in males than females, but HDL-cholesterol level was significantly lower (p<0.01) in males than females. The plasma ascorbic acid concentration had no difference in both genders. Most of nutrient intakes except Ca, vitamin A and vitamin $B_2$ were higher than RI (Recommended intake) in both males and females. The meal frequency per day was significantly higher (p<0.01) in males than females, while meal speed, the heaviest meal, meal quantity and meal regularity had no significant differences. The rates of drinking and smoking were significantly higher (p<0.01) in males (59.3%, 37.2%) than females (17.3%, 6.9%). The age was positively correlated with triglyceride level in males (p<0.05), and with total cholesterol (p<0.001), LDL-cholesterol (p<0.001), Apo B (p<0.01), LDL-C:HDL-C ratio (p<0.01), Apo B:Apo A-I ratio (p<0.05) and AI (p<0.01) in females. The levels of serum lipid and apolipoprotein were more correlated with protein intake than other macronutrient intakes in males, while those in females were more correlated energy, carbohydrate and lipid intakes than protein intake. The effect of drinking on serum lipid and apolipoprotein levels was bigger in males than females, while the effect of smoking on those was bigger in females than males. The plasma ascorbic acid concentration was positively correlated with HDL-cholesterol (p<0.05), Apo A-I levels (p<0.001), whereas negatively correlated with Apo B:Apo A-I ratio (p<0.05) in males. And that was positively correlated with HDL-cholesterol (p<0.05) in females. These results suggest that moderate macronutrient intake, less alcohol consumption and non-smoking were necessary to maintain healthy lipid profile with aging in adults.

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The $Sst$ I Restriction Fragment Length Polymorphism of the Apolipoprotein C-III Gene in Korean Subjects

  • Youk, Hyei-Soo;Kim, In-Sik;Kang, Sang-Sun;Kang, Hee-Gyoo;Hyun, Sung-Hee
    • 대한의생명과학회지
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    • v.17 no.4
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    • pp.347-353
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    • 2011
  • The definite mechanism in the control of triglyceride metabolism is not well understood. Nowadays, it has been known that the polymorphism of apolipoprotein C-III $Sst$ I was an important candidate for contributing to the control of triglyceride metabolism. In 298 Korean women aged 30 years or more, the genotypes of apolipoprotein C-III $Sst$ I were statistically compared with total blood cholesterol, triglyceride, high density lipoprotein, fasting blood sugar and hemoglobin A1c. Multiple logistic regression analysis was carried out to compare the odd-ratios of hypertriglyceridemia, hypercholesterolemia and diabetes mellitus with them. The differences among the polymorphic types ($S_1S_1$, $S_1S_2$, and $S_2S_2$) were not statistically significant in the distribution of triglyceride, total cholesterol, high density lipoprotein, fasting blood sugar, and hemoglobin A1c. There were not statistically significant in the odds ratios of the hypertriglyceridemia, hypercholesterolemia, and diabetes mellitus, neither. Those were not statistically significant. This study did not show that there was any association between the polymorphism of apolipoprotein C-III $Sst$ I and various laboratory values-total blood cholesterol, triglyceride, high density lipoprotein, fasting blood sugar and hemoglobin A1c.

흰쥐에서 김치식이가 조직과 분변의 지질조성과 Apo단백 및 Thyroxine 농도에 미치는 영향 (Effects of Kimchi on Tissue and Fecal Lipid Composition and Apolipoprotein and Thyroxine Levels in Rats)

  • 권명자;송영옥;송영선
    • 한국식품영양과학회지
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    • v.26 no.3
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    • pp.507-513
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    • 1997
  • This study was carried out to examine whether kimchi has hypolipidemic effect and to know how it exert lipid-lowering effect in rats. Male Sprague-Dawley rats were fed with kimchi-fee diet, or 3%, or 5%, or 10% kimchi diets for 6 weeks. Plasma cholesterol level was lowered in rats fed all concentrations of kimchi diets, and plasma triglyceride(TG) level was lowered in 10% kimchi diet group compared with that of control significantly(p<0.05). Th intake of kimchi lowered VLDL-cholesterol and VLDL-TG levels, whereas increased HDL-cholesterol level significantly(p<0.05). LDL-cholesterol level was lowered only in 5% kimchi diet group and LDL-TG level was lowered in all kimchi diet groups compared with those of control significantly (p<0.05). the intake of 5% and 10% kimchi diets also lowered the levels of hepatic cholesterol, TG, total lipid, and apolipoprotein B, whereas increased the levels of fecal total fat, cholesterol, TG, and apolipoprotein A-1 significantly(p<0.05). Triiodothyronine(T$_3$) level was elevated in rats fed kimchi diet, whereas thyroxine(T$_4$) level was not affected by kimchi treatment. These observations support that the intake of kimchin in rats loweres plasma and hepatic lipid levels by increasing the excretion of TG and cholesterol through feces, by the elevation of T$_3$ level, and by the altered lipoprotein metabolism.

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