3 research outputs found

    DJ-1의 λ°œν˜„ μ–΅μ œκ°€ μž„μ‹  제 1μ‚ΌλΆ„κΈ° 육λͺ¨μ™Έμ„± μ˜μ–‘λ§‰μ„Έν¬μ˜ κΈ°λŠ₯에 λ―ΈμΉ˜λŠ” 영ν–₯

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    Department of Medicine/박사DJ-1 (PARK7)은 νŒŒν‚¨μŠ¨λ³‘μ˜ 원인 μœ μ „μž 쀑 ν•˜λ‚˜μ΄λ©°, μ’…μ–‘μœ μ „μž (oncogene)λ‘œλ„ μ•Œλ €μ Έ μžˆλ‹€. μ§€κΈˆκΉŒμ§€ ν•­μ‚°ν™” 효과 λ“± μ—¬λŸ¬κ°€μ§€ 생물학적 κΈ°λŠ₯듀이 λ³΄κ³ λ˜μ—ˆλ‹€. 특히 퇴행성 신경계 μ§ˆν™˜μ—μ„œ DJ-1의 κΈ°λŠ₯ μ†Œμ‹€μ€ 세포사 (cell death)λ₯Ό μœ λ°œν•  수 있으며, μ•”μ§ˆν™˜μ˜ 경우 이 μœ μ „μžμ˜ κΈ°λŠ₯ 항진이 μ•”μ„Έν¬μ˜ μ‘°μ ˆλ˜μ§€ μ•ŠλŠ” 생쑴을 μœ λ°œν•˜κΈ°λ„ ν•œλ‹€κ³  μ•Œλ €μ Έ μžˆλ‹€. DJ-1은 μ—¬λŸ¬ μž₯기에 걸쳐 λ°œν˜„λ˜λ©°, νƒœλ°˜μ˜ μ˜μ–‘λ§‰μ„Έν¬μ—μ„œλ„ λ°œν˜„λœλ‹€. λ˜ν•œ, μž„μ‹  제1μ‚ΌλΆ„κΈ°μ˜ μ˜μ–‘λ§‰μ„Έν¬μ—μ„œ μž„μ‹  후기에 λΉ„ν•΄ κ·Έ λ°œν˜„μ΄ μ¦κ°€ν•˜λŠ” κ²ƒμœΌλ‘œ μ•Œλ €μ Έ μžˆλ‹€. μ˜μ–‘λ§‰μ„Έν¬μ˜ 이동, 침슡 및 전이 λ“± κ·Έ 생물학적 κΈ°λŠ₯이 암세포와 μœ μ‚¬ν•¨μ—λ„ λΆˆκ΅¬ν•˜κ³  μ˜μ–‘λ§‰μ„Έν¬μ—μ„œ DJ-1의 생물학적 κΈ°λŠ₯에 λŒ€ν•΄μ„œλŠ” μ•Œλ €μ§„ λ°”κ°€ μ—†λ‹€. λ”°λΌμ„œ, 이 μ—°κ΅¬λŠ” μž„μ‹  제1μ‚ΌλΆ„κΈ° 육λͺ¨μ™Έ (extravillous) μ˜μ–‘λ§‰μ„Έν¬μ£ΌμΈ HTR-8/SV neoμ—μ„œ DJ-1의 λ°œν˜„ 쑰절이 세포 κΈ°λŠ₯에 λ―ΈμΉ˜λŠ” 영ν–₯κ³Ό κ·Έ 기전에 λŒ€ν•΄ μ•Œμ•„λ³΄κ³ μž ν•˜μ˜€λ‹€. siRNA (small interfering RNA)둜 μœ λ„λœ DJ-1 의 λ°œν˜„ μ–΅μ œκ°€ μ„Έν¬μžλ©Έμ‚¬ (apoptosis), 세포 이동 및 μ΄λŸ¬ν•œ κΈ°λŠ₯듀을 μ‘°μ ˆν•˜λŠ” 기전에 λ―ΈμΉ˜λŠ” 영ν–₯을 ν‰κ°€ν•˜μ˜€λ‹€. 이 μ—°κ΅¬μ—μ„œ DJ-1의 λ°œν˜„ μ–΅μ œκ°€ λŒ€κΈ° ν™˜κ²½κ³Ό μ‚°ν™”μŠ€νŠΈλ ˆμŠ€ μ‘°κ±΄μ—μ„œ μ„Έν¬μžλ©Έμ‚¬λ₯Ό μ¦κ°€μ‹œν‚€κ³ , κΈ°μ§ˆκΈˆμ†λ‹¨λ°±λΆ„ν•΄νš¨μ†Œλ₯Ό μ–΅μ œν•˜μ—¬ 세포이동이 κ°μ†Œν•˜μ˜€μœΌλ©° μ΄λŸ¬ν•œ 세포 κΈ°λŠ₯의 λ³€ν™”κ°€ Akt-S6K1 경둜λ₯Ό 톡해 일어남을 ν™•μΈν•˜μ˜€λ‹€. 결둠적으둜 DJ-1은 μ‚°ν™”μŠ€νŠΈλ ˆμŠ€ ν™˜κ²½μ—μ„œ μ˜μ–‘λ§‰μ„Έν¬μ˜ κΈ°λŠ₯을 λ³΄μ‘΄ν•˜λŠ” 데 μ€‘μš”ν•œ 역할을 ν•˜λŠ” κ²ƒμœΌλ‘œ μƒκ°λ˜λ©°, ν–₯ν›„ DJ-1의 λ°œν˜„ 이상이 산과적 합병증에 λ―ΈμΉ˜λŠ” 영ν–₯에 λŒ€ν•΄μ„œλŠ” 좔가적인 연ꡬ가 ν•„μš”ν•  것이닀.openλ°•

    제 1ν˜• μ„Έν¬κ°„λΆ€μ°©λΆ„μž(intercellular adhesion molecule-1)의 K469E μœ μ „μž λ‹€ν˜•μ„±κ³Ό μ „μžκ°„μ¦

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    Dept. of Medicine/석사[ν•œκΈ€]λͺ©μ : ν˜ˆκ΄€ λ‚΄ν”Όμ˜ κΈ°λŠ₯ 뢀전은 μ „μžκ°„μ¦μ˜ μ€‘μš”ν•œ λ°œλ³‘κΈ°μ „μ΄λ©° μ΄λŸ¬ν•œ ν˜ˆκ΄€ λ‚΄ν”Ό κΈ°λŠ₯ 뢀전이 λ°œμƒμ‹œν‚€λŠ” 원인 쀑 μž„μ‹  쑰직에 λŒ€ν•œ λͺ¨μ²΄μ˜ κ³Όλ„ν•œ 염증 λ°˜μ‘μ΄ μ—°κ΄€λ˜μ–΄ μžˆλ‹€κ³  μ•Œλ €μ Έ μžˆλ‹€. 제 1ν˜• μ„Έν¬κ°„λΆ€μ°©λΆ„μžλŠ” 백혈ꡬ λ“±μ˜ 염증 κ΄€λ ¨ 세포가 ν˜ˆκ΄€ λ‚΄ν”Όλ‘œ 이동 및 λΆ€μ°©ν•˜λŠ”λ° κ΄€μ—¬ν•œλ‹€. μž„μ‹  μ‹œμ—λŠ” ν˜ˆκ΄€ λ‚΄ν”ΌλΏλ§Œ μ•„λ‹ˆλΌ μ˜μ–‘λ§‰μ„Έν¬ 등에 κ³Όλ°œν˜„ν•˜μ—¬ λͺ¨μ²΄μ˜ 면역학적 인지와 κ±°λΆ€ λ°˜μ‘μ„ 일으켜 μ˜μ–‘λ§‰ 세포가 μžκΆλ‚΄ λ‚˜μ„  동λ§₯ (spiral artery)둜 μΉ¨μŠ΅ν•΄ λ“€μ–΄κ°€λŠ” 것을 μ œν•œν•˜λ©° μ΄λŸ¬ν•œ κ³Όμ • 톡해 μ „μžκ°„μ¦μ„ μœ λ°œν•  수 μžˆλ‹€. 제 1ν˜• λΆ€μ°©λΆ„μžμ˜ μœ μ „μž λ‹€ν˜•μ„±μ€ μ—¬λŸ¬κ°€μ§€ 염증 κ΄€λ ¨ μ§ˆν™˜κ³Ό μžκ°€ λ©΄μ—­ μ§ˆν™˜μ˜ λ°œμƒ μœ„ν—˜κ³Ό 연관성이 μžˆλ‹€κ³  보고되고 μžˆλ‹€. λ”°λΌμ„œ λ³Έ μ—°κ΅¬μ—μ„œλŠ” 제 1ν˜• μ„Έν¬κ°„λΆ€μ°©λΆ„μžμ˜ μœ μ „μž λ‹€ν˜•μ„±μ΄ ν•œκ΅­μΈμ˜ μ „μžκ°„μ¦ λ°œμƒκ³Ό 연관성이 μžˆλŠ”μ§€ μ•Œμ•„λ³΄κ³ μž ν•˜μ˜€λ‹€. μ—°κ΅¬λŒ€μƒ 및 방법: 42λͺ…μ˜ μ „μžκ°„μ¦ μ‚°λͺ¨κ³Ό 138λͺ…μ˜ 정상 ν˜ˆμ••μ΄λ©° 2회 이상 정상 λ§Œμ‚­ λΆ„λ§Œμ„ ν•œ μ‚°λͺ¨λ₯Ό 각각 λŒ€μƒκ΅°κ³Ό λŒ€μ‘°κ΅°μœΌλ‘œ ν•˜μ˜€κ³ , μœ μ „μž λ‹€ν˜•μ„±μ€ μ§μ ‘μ—ΌκΈ°μ„œμ—΄λΆ„μ„λ°©λ²•μ„ μ΄μš©ν•˜μ˜€λ‹€. λŒ€μƒκ΅° 및 λŒ€μ‘°κ΅°μ˜ μœ μ „μžν˜•κ³Ό λŒ€λ¦½μœ μ „μžμ˜ λ°œμƒ λΉˆλ„μ— 차이가 μžˆλŠ”μ§€ λΆ„μ„ν•˜μ˜€λ‹€. κ²°κ³Ό: 제 1ν˜• μ„Έν¬κ°„λΆ€μ°©λΆ„μžμ˜ K469E μœ μ „μžν˜•μ€ ν•œκ΅­μΈ μ „μžκ°„μ¦κ΅°κ³Ό λŒ€μ‘°κ΅° 간에 톡계학상 μœ μ˜ν•œ λΆ„ν¬μ˜ 차이가 μ—†μ—ˆλ‹€. λ˜ν•œ 각 λŒ€λ¦½μœ μ „μžμ˜ λ°œμƒ λΉˆλ„ μ—­μ‹œ 두 κ΅°κ°„ μœ μ˜ν•œ 차이λ₯Ό 보이지 μ•Šμ•˜λ‹€. (KK/KE/EE (%) λŒ€μ‘°κ΅° 45.7/44.2/10.1, μ „μžκ°„μ¦κ΅° 59.5/23.8/16.7, p>0.05), (K allele (%) λŒ€μ‘°κ΅° 67.8 , μ „μžκ°„μ¦κ΅° 71.4, p= 0.62) μ΄λŸ¬ν•œ κ²½ν–₯은 쀑증 μ „μžκ°„μ¦ μ‚°λͺ¨λ₯Ό λŒ€μƒκ΅°μœΌλ‘œ ν•˜μ˜€μ„ κ²½μš°μ—λ„ λ§ˆμ°¬κ°€μ§€μ˜€λ‹€. (KK/KE/EE (%) λŒ€μ‘°κ΅° 45.7/44.2/10.1, 쀑증 μ „μžκ°„μ¦κ΅° 59.3/29.6/11.1, p=0.36), (K allele (%) λŒ€μ‘°κ΅° 67.8, 쀑증 μ „μžκ°„μ¦κ΅° 74.1, p= 0.45) κ²°λ‘ : ν•œκ΅­μΈ μ „μžκ°„μ¦κ΅°μ—μ„œ 제 1ν˜• μ„Έν¬κ°„λΆ€μ°©λΆ„μžμ˜ K λŒ€λ¦½μœ μ „μž 및 KK μœ μ „μžν˜•μ˜ λ°œμƒ λΉˆλ„κ°€ λŒ€μ‘°κ΅°μ— λΉ„ν•΄ λ†’μ•˜μœΌλ‚˜ ν†΅κ³„ν•™μ μœΌλ‘œ μœ μ˜ν•œ 연관성은 μ—†μ—ˆλ‹€. [영문]Objective: Endothelial dysfunction is considered to be central in the pathogenesis of preeclampsia. An excessive maternal systemic inflammatory response to pregnancy has been proposed to be responsible for endothelial dysfunction. The ICAM-1 molecule is functionally involved in the regulation of adhesion of leukocytes to the endothelium as well as leukocyte migration, in other words, that expression could stimulate maternal immunological recognition and rejection reactions, and result in disrupted trophoblast trafficking and thereby cause incomplete placentation leading to preeclampsia. In this case-control study, we will examine whether the distribution of genotypic and allelic frequencies of ICAM-1 K469 of Korean women with preeclampsia are different from those of control group. Materials and Methods: The ICAM-1 K469E polymorphism was genotyped using sequencing analysis in 42 women with preeclampsia and 138 normotensive controls who had delivered at least two normal term babies. Genomic DNA was extracted from whole blood sample. After gene amplification by PCR and purification, direct sequencing reaction method was used to detect a single nucleotide polymorphism. Results: The distribution of genotype frequencies and the frequency of the K469 allele of the preeclampsia group were not significantly different from those of the controls. (KK/KE/EE (%) control 45.7/44.2/10.1 vs preeclampsia 59.5/23.8/16.7, p>0.05), (K allele (%) control 67.8 vs preeclampsia 71.4, p= 0.62) A similar trend was observed between the severe preeclampsia patients and the controls. (KK/KE/EE (%) control 45.7/44.2/10.1 vs severe preeclampsia 59.3/29.6/11.1, p=0.36), (K allele (%) control 67.8 vs severe preeclampsia 74.1, p= 0.45) Conclusions: The frequencies of the KK genotype and the K allele were higher in the preeclampsia group than those in the control group. However, there was no statistically significant difference.ope

    Uterine artery Doppler velocimetry and maternal weight gain by the mid-second trimester for prediction of fetal growth restriction

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    OBJECTIVE: To investigate whether assessment of maternal weight gain up to mid-second trimester improves the predictive value of uterine artery Doppler velocimetry (UAD) for the prediction of fetal growth restriction (FGR). SETTING: Department of Obstetrics and Gynecology, Yonsei University College of Medicine. DESIGN: Prospective Doppler measurements coupled to retrospective chart review. POPULATION: A total of 10,970 women delivering at the institution. OUTCOME MEASURES: Maternal weight gain up to mid-second trimester and Doppler ultrasonography on bilateral uterine arteries between 20 and 24 weeks' gestation. Low weight gain was defined as <0.2 kg/week and FGR as birthweight of <10th percentile. RESULTS: ith that combined with the measurement of maternal weight gain for the prediction of the FGR. The odd ratios for FGR were 2.56 (95% CI 1.59-4.12) in the group with normal UAD and abnormal weight gain (normal-abnormal group), 1.91 (95% CI 0.98-3.7) in the abnormal-normal group and 40.3 (95% CI 16.9-96.4) in the abnormal-abnormal group. UAD independent of weight gain had a sensitivity of 31.5%, a specificity of 88%, a positive predictive value (PPV) of 24.5% and a negative predictive value (NPV) of 91.2%. When mid-trimester maternal weight gain was accounted for, the sensitivity of UAD was 64.9%, specificity 64.1%, PPV 73.3% and NPV 93.6%. CONCLUSION: The diagnostic performance of UAD for FGR improved significantly when the degree of maternal weight gain until the mid-second trimester was taken into account. Closer antenatal surveillance might be required in women with abnormal uterine Doppler velocimetry if their mid-second trimester weight gain is poor.ope
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