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dc.contributor.advisor권오란-
dc.contributor.authorHENDRYANTI, DEA NATHANIA-
dc.creatorHENDRYANTI, DEA NATHANIA-
dc.date.accessioned2019-08-13T16:30:54Z-
dc.date.available2019-08-13T16:30:54Z-
dc.date.issued2019-
dc.identifier.otherOAK-000000158424-
dc.identifier.urihttp://dcollection.ewha.ac.kr/common/orgView/000000158424en_US
dc.identifier.urihttps://dspace.ewha.ac.kr/handle/2015.oak/250563-
dc.description.abstractAtherothrombosis is the major cause of cardiovascular death. This present study aimed to evaluate the anti-atherothrombotic effects of common oriental melon (OMC) and oriental melon bred for high serine protease activity (OMS) in a collagen-epinephrine (C/E)-induced platelet activation rat model. Forty-eight Sprague Dawley rats (n=12/group) were divided into four groups: non-disease control (NDC; saline + saline), collagen and epinephrine control (CEC; C/E + saline), common oriental melon (OMC; C/E + OMC), and oriental melon high in serine protease (OMS; C/E + OMS). The test material and saline were administered by oral gavage for 4 weeks. To investigate the effects of OMC and OMS in managing atherothrombosis, biochemical metabolite, blood coagulation, reverse transcription-polymerase chain reaction, western blot, and histological analysis were performed. Cyclooxygenase-1 mRNA (P=0.000), thromboxane B2 (P=0.001) and total occluded area (P=0.014) in the lung were significantly decreased in the OMS group compared with those in the CEC group. OMS also remarkably escalated activated partial thromboplastin time (P=0.000), fibrinogen degradation product (P=0.011), and tissue-type plasminogen activator (P=0.015). When compared with the CEC group, the OMS group showed a significant attenuation of vascular inflammation by inhibiting P-selectin (P=0.034 in aorta and P=0.039 in PBMC) and vascular cell adhesion molecule-1 (VCAM-1) (P=0.032 in aorta and P=0.034 in PBMC). The remarkable decrease in aortic wall thickness (P=0.002) probably through endothelial nitric oxide phosphorylation (P=0.000) and nitric oxide production (P=0.032). In contrast, the OMC group demonstrated downregulation of VCAM-1 (P=0.045 in aorta and P=0.028 in PBMC) only. These results indicate a profound effect of OMS in modifying the atherothrombosis progression. ;죽상혈전증은 심혈관 질환의 주요 원인이다. 본 연구는 collagen-epinephrine (C/E)에 의해 유도된 혈소판 활성화 쥐 모델에서 일반적인 참외(OMC)와 세린단백분해효소를 고함유한 참외(OMS)의 항죽상혈전증 효과를 확인하고자 수행되었다. 5주령의 수컷 Sprague Dawley 쥐 48마리를 무작위 배정으로 4군으로 나누었으며, 시험물질과 식염수를 4주 동안 경구투여 하였다: 정상 대조군(NDC; 식염수+식염수), C/E 대조군 (CEC; 식염수+ C/E), 참외 섭취군 (OMC; C/E + OMC), 고세린단백분해효소 함유 참외 섭취군 (C/E + OMS). 시험물질의 혈전처리능을 알아보기 위해 생화학적 지표와 혈액 응고 지표를 측정하고, RT-PCR, 웨스턴 블롯, 조직법을 수행하였다. OMS 군은 CEC군 대비 Cyclooxygenase-1의 mRNA 발현(P=0.000)과 혈장 thromboxane B2 농도(P=0.001), 폐 기관지의 폐색된 면적(P=0.014)이 유의적으로 감소하였다. 또한, OMS 군은 활성부분트롬보플라스틴시간(P=0.000), 피브린 분해산물(P=0.011), 조직플라스미노겐활성제(P=0.015)가 유의적으로 증가하였다. OMS군은 CEC군과 비교하여 adhesion molecule인 P-selectin (동맥; P=0.034, PBMC; P=0.039)과 VCAM-1(동맥; P=0.032, PBMC; P=0.034)의 mRNA 발현이 억제되었다. 뿐만 아니라, OMS군은 endothelial nitric oxide의 인산화(P=0.000)와 nitric oxide의 생성(P=0.032)이 증가함에 따라 대동맥 벽이 유의적인 감소하였음을 알 수 있다(P=0.002). 이와 달리, OMC 군에서는 VCAM-1 (동맥; P=0.045, PBMC; P=0.028)의 발현 감소만 확인할 수 있었다. 이러한 결과는 세린단백분해효소를 고함유한 참외의 섭취가 혈소판 활성 억제와 피브린 분해 증가, 혈전증 및 염증 완화, 대동맥 벽 감소에 따른 혈관 확장을 통해 내피 세포와 혈관기능을 개선한 것으로 사료된다. 따라서, 세린단백분해효소 고함유 참외의 섭취는 항죽상혈전증 효능이 있음을 확인하였다.-
dc.description.tableofcontentsI. INTRODUCTION 1 II. MATERIAL AND METHOD 4 2.1. Materials 4 2.1.1. Test materials 4 2.1.2. Synthetic oligonucleotide primers for polymerase chain reaction 10 2.1.3. Antibodies 12 2.1.4. Kits 13 2.1.5. Reagents and substances 14 2.1.6. Solution and buffers 15 2.2. Animals and protocols 16 2.2.1. Experimental animals 16 2.2.2. Experimental scheme 16 2.2.3. Collagen and epinephrine-induced platelet activation model 18 2.2.4. Bio-sample collections 18 2.3. Blood coagulation assay 19 2.4. Biochemical metabolite assays 19 2.4.1. Measurement of thromboxane B2 20 2.4.2. Measurement of fibrinogen degradation product 21 2.4.3. Measurement of prostaglandin E2 22 2.4.4. Measurement of total nitric oxide 23 2.5. Quantitative reverse transcription polymerase chain reaction analysis 24 2.6. Western blot analysis 26 2.7. Histological analysis 27 2.7.1. Hematoxylin and eosin staining 27 2.7.2. Immunofluorescence of aorta 28 2.8. Statistical analysis 30 III. RESULTS 31 3.1. General index 31 3.2. Anti-thrombotic effect 36 3.2.1. Antiplatelet effect 36 3.2.1.1. Lung hematoxylin and eosin staining analysis 36 3.2.1.2. Effects on the COX-1 signaling pathway 40 3.2.2. Anticoagulant effect 45 3.2.3. Anti-inflammatory effect 48 3.2.3.1. Adhesion molecules release in the vascular system 48 3.2.3.2. TNF- and COX-2 signaling pathway 49 3.2.4. Vasodilatory effect 56 3.2.4.1. Endothelial nitric oxide synthase phosphorylation 56 3.2.4.2. Nitric oxide production 59 3.2.4.3. Hematoxylin and eosin staining in thoracic aorta 62 3.3. Pro-fibrinolytic effect 65 IV. DISCUSSION 70 V. CONCLUSION 81 REFERENCES 83 APPENDIX 89 국문초록 92 Acknowledgments 95-
dc.formatapplication/pdf-
dc.format.extent7540154 bytes-
dc.languageeng-
dc.publisher이화여자대학교 대학원-
dc.subject.ddc600-
dc.titleAnti-thrombotic and Pro-fibrinolytic Effect of Oriental Melon (Cucumis melo L . var makuwa) in a Rat Model of Platelet Activation-
dc.typeMaster's Thesis-
dc.title.translated혈소판 활성화 동물모델에서 참외 (Cucumis melo L.var makuwa)의 항혈전 및 섬유소용해 효과-
dc.format.pagexv, 96 p.-
dc.identifier.thesisdegreeMaster-
dc.identifier.major대학원 식품영양학과-
dc.date.awarded2019. 8-
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