Name: ferric chloride-induced murine thrombosis models
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Description: Watch this Scientific Journal Video about Ferric Chloride-induced Murine Thrombosis Models at JoVE.com

This work was supported by the National Heart Lung and Blood Institute (NHLBI) of the National Institutes of Health under award numbers R01 HL121212 (PI: Sen Gupta), R01 HL129179 (PI: Sen Gupta, Co-I: Li) and R01 HL098217 (PI: Nieman). The content of this publication is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health.

כל הנהלים והמניפולציות של חיות אושרו על ידי טיפול בבעלי חיים מוסדיים ועדות שימוש (IACUC) של קליבלנד קליניק בהתאם למדיניות השירות לבריאות ציבור ארצות הברית על הטיפול האנושי ושימוש בחיות, ואת מדריך NIH עבור הטיפול ושימוש בחיות מעבדה. <p class="jove_title" style=";text-align:right;direc...

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מודל FeCl 3 -induced הוא אחד הדגמים פקקו בשימוש הנרחב ביותר, אשר לא יכול רק לספק מידע רב ערך על שינויים גנטיים על תפקוד טסיות ופקק 7,8,16,19,31-33, אבל גם יכול להיות כלי רב ערך להערכת תרכובות אסטרטגיות טיפוליות לטיפול ומניעה של מחלות atherothrombotic 11,17,34-37. כאן אנו הראינו...

פקקת עורקים (קריש דם) היא סיבוך נפוץ של מחלות מערכתיות רבות הקשורות בדלקת כרונית, כולל טרשת עורקים, סוכרת, השמנת יתר, סרטן והפרעות rheumatologic אוטואימונית כרונית. Thrombi המתרחשת בגזע במחזור עורקים מהפעלת טסיות הולמת, צבירה ומנגנוני coagulatory הבאות שלה מעורבת התקף לב, שבץ ואובדן גפיים. בדפנות כלי הדם היא מערכת מורכבת הכוללת סוגי תאים מרובים ומושפע רב של גורמים חיצוניים כולל מאמץ הגזירה, תאי דם, הורמונים וציטוקינים, כמו גם ביטוי של חלבונים נוגדי חמצון בדפנות כלי הדם. ניסויים במבחנה לא יכול לשכפל בסביבה המורכבת הזו ולכן במחקרים vivo תוך שימוש במודלים של בעלי חיים הם קריטיים כדי לאפשר הבנה טובה יותר של המנגנונים המעורבים הפרעות של פקקת. עכברים הוכחו יש simמנגנוני ilar לבני אדם במונחים של פקקת, טרשת עורקים, דלקת 1,2 סוכרת. יתר על כן, העכברים הטרנסגניים ו בנוקאאוט ניתן ליצור לבדוק את הפונקציה של מוצרים גנים ספציפיים פיזיולוגי מורכב או הסביבה פתולוגיים. מחקרים כאלה לחקות הפתולוגיה האנושית עשויה לספק מידע מכניסטית חשובים הקשורים גילוי מסלולים וטיפולים חדשים, כמו גם לספק פרטים חשובים באפיון השפעות התרופה על פקקת. Thrombi עורקי הפתולוגי להתרחש עקב אנדותל פציעה שכבה או תפקוד לקוי וחשיפה של זרם הדם המטריצה ​​subendothelial 3,4. מודלים פקקת שונים פותחו כדי לגרום נזק האנדותל זה כגון פגיעה מכנית, מתחם photoreactive פציעה חמצוני מבוססי בנגל רוז לייזר פציעה 5. ב הספקטרום הזה, כלוריד Ferric (FeCl 3) -induced לפגיעה בכלי דם היא מודל נפוץ של פקק. מגיב זה כאשרמוחל על היבט של כלי החיצוני גורם נזק חמצוני לתאים וסקולרית 6-8, עם הפסד של הגנה תא האנדותל מן במחזור טסיות ורכיבים של מפל הקרישה. המודל 3 FeCl הוא פשוט רגיש לשני תרופות נוגדות קרישה ואנטי-טסיות, והועלה על התרדמה ועורקים הירך, ורידי הצוואר, mesenteric ו arterioles cremasteric ו venules בעכברים, חולדות, שרקנים וארנבות 6-15. אחת פרמטר מדיד במודל זה הוא הזמן שחלף מפציעה להשלים חסימה כלי, כפי שנמדד הפסקת זרימת הדם עם מד זרימת דופלר או בהשגחה ישירה עם 6,7,9 מיקרוסקופיה intravital. מגוון של פעמים בין 5 עד 30 דקות דווח במחקרים שונים C57BL6 עכברי 7-10,16, דבר המצביע על כך ריכוזי FeCl 3, סוגים של הרדמה, טכניקות כירורגיות, גיל עכבר, רקע גנטי, שיטת המדידה בזרימת lood, ומשתנים סביבתיים אחרים יש השפעה משמעותית במודל זה. השתנות רחבה זה עושה את זה קשה להשוות מחקרים מקבוצות מחקר שונות והוא רשאי להתקין זיהוי של הבדלים דקים קשה. עם חזון כדי למזער variabilities כאלה ולהקים לשחזור אחיד במערכת מודל vivo, יש לנו מודל חלופי שהוצע עורק התרדמה -induced FeCl 3 שעושה את הנתונים לשחזור ביותר עם ​​וריאציה מינימלי 6-10,16-19. במאמר זה נתאר ולשתף את הכישורים ולדווח כמה דוגמאות ניסיוני נציג שיכול להפיק תועלת במודל זה.

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ferric chloride-induced murine thrombosis models

Arterial thrombosis (blood clot) is a common complication of many systemic diseases associated with chronic inflammation, including atherosclerosis, diabetes, obesity, cancer and chronic autoimmune rheumatologic disorders. Thrombi are the cause of most heart attacks, strokes and extremity loss, making thrombosis an extremely important public health problem. Since these thrombi stem from inappropriate platelet activation and subsequent coagulation, targeting these systems therapeutically has important clinical significance for developing safer treatments. Due to the complexities of the hemostatic system, in vitro experiments cannot replicate the blood-to-vessel wall interactions; therefore, in vivo studies are critical to understand pathological mechanisms of thrombus formation. To this end, various thrombosis models have been developed in mice. Among them, ferric chloride (FeCl3) induced vascular injury is a widely used model of occlusive thrombosis that reports platelet activation and aggregation in the context of an aseptic closed vascular system. This model is based on redox-induced endothelial cell injury, which is simple and sensitive to both anticoagulant and anti-platelets drugs. The time required for the development of a thrombus that occludes blood flow gives a quantitative measure of vascular injury, platelet activation and aggregation that is relevant to thrombotic diseases. We have significantly refined this FeCl3-induced vascular thrombosis model, which makes the data highly reproducible with minimal variation. Here we describe the model and present representative data from several experimental set-ups that demonstrate the utility of this model in thrombosis research.

התרדמה עורקים פקקת דגם בעכברים עם רקע C57BL6, אנו ממליצים להשתמש 7.5% FeCl 3 לטיפול הספינה דקות 1 כנקודת מוצא. תחת טיפול של 7.5% 3 FeCl, גבולות האזור הפצוע בדפנות כלי דם נורמליות מזוהים בקלות תחת מיקרוסקופ (מקוון ראו וידאו 1),<...

Watch this Scientific Journal Video about Ferric Chloride-induced Murine Thrombosis Models at JoVE.com

Ferric Chloride-induced Murine Thrombosis Models

אנו מדווחים הליך מעודן של כלוריד Ferric (FeCl 3) מודלים פקקת -induced על העורק הראשי ואת mesenteric וכן וריד, מאופיין באמצעות מיקרוסקופ intravital ביעילות לפקח הזמן Occlusive היווצרות thrombi.

מי כלוריד-induced Ferric מודלים פקקת Murine

Arterial thrombosis (blood clot) is a common complication of many systemic diseases associated with chronic inflammation, including atherosclerosis, ...

Research

JoVE Journal

Medicine

Electrolytic Inferior Vena Cava Model (EIM) of Venous Thrombosis

Electrolytic Inferior Vena Cava Model EIM of Venous Thrombosis

אלקטרוליטי נחותים הווריד הנבוב Model (EIM) של פקקת ורידים

Animal models serve a vital role in deep venous thrombosis (DVT) research in order to study thrombus formation, thrombus resolution and to test potential ...

Mouse Complete Stasis Model of Inferior Vena Cava Thrombosis

עכבר דגם השלם הקיפאון של פקקת נחותים הווריד הנבוב

Venous thromboembolism (VTE) includes both deep vein thrombosis (DVT) and pulmonary embolism (PE).  In the United States (U.S.), the high morbidity and ...

Segmentation and Measurement of Fat Volumes in Murine Obesity Models Using X-ray Computed Tomography

פילוח ומדידה של כמויות השומן מודלים השמנת יתר Murine באמצעות קרני רנטגן טומוגרפיה ממוחשבת

Obesity is associated with increased morbidity and mortality as well as reduced metrics in quality of life.1 Both environmental and genetic factors are ...

Quantitative Analysis and Characterization of Atherosclerotic Lesions in the Murine Aortic Sinus

Atherosclerosis is a disease of the large arteries and a major underlying cause of myocardial infarction and stroke. Several different mouse models have ...

Intrastriatal Injection of Autologous Blood or Clostridial Collagenase as Murine Models of Intracerebral Hemorrhage

הזרקת Intrastriatal של עצמי בדם או קלוסטרידיאל Collagenase כמודלים Murine של Intracerebral שטף דם

Intracerebral hemorrhage (ICH) is a common form of cerebrovascular disease and is associated with significant morbidity and mortality. Lack of effective ...

Orthotopic Injection of Breast Cancer Cells into the Mammary Fat Pad of Mice to Study Tumor Growth.

הזרקת orthotopic של תאי סרטן השד לחלב שומן Pad של עכברים לחקר התפתחות גידול.

Breast cancer growth can be studied in mice using a plethora of models. Genetic manipulation of breast cancer cells may provide insights into the ...

Adapting Human Videofluoroscopic Swallow Study Methods to Detect and Characterize Dysphagia in Murine Disease Models

התאמת שיטות סנונית Videofluoroscopic אדם מחקר כדי לזהות ולאפיין בליעה במודלי Murine מחלות

This study adapted human videofluoroscopic swallowing study (VFSS) methods for use with murine disease models for the purpose of facilitating ...

High-frequency Ultrasound Imaging of Mouse Cervical Lymph Nodes

בתדירות גבוהה אולטראסאונד הדמיה של בלוטות לימפה עכבר צוואר הרחם

High-frequency ultrasound (HFUS) is widely employed as a non-invasive method for imaging internal anatomic structures in experimental small animal ...

A Multicenter MRI Protocol for the Evaluation and Quantification of Deep Vein Thrombosis

MRI פרוטוקול Multicenter להערכה וכימות של פקקת וריד העמוק

We evaluated a magnetic resonance venography (MRV) approach with gadofosveset to quantify total thrombus volume changes as the principal criterion for ...

Ferric Chloride-induced Thrombosis Mouse Model on Carotid Artery and Mesentery Vessel

פקקת עכבר דגם על עורק ראשי וכלי לפדר מושרה כלוריד Ferric

Severe thrombosis and its ischemic consequences such as myocardial infarction, pulmonary embolism and stroke are major worldwide health issues. The ferric ...