Farelerde Spontan İntraserebral Kanama Model Otolog Kan Enjeksiyon
Summary
Bu protokolü açıklanan farelerde intraserebral kanama otolog kan enjeksiyonu modeli, iğne izi kadar kan reflü, pompa sistemi hiçbir antikoagülanlar riskini en aza indirmek için çift enjeksiyon tekniği kullanır ve sistemdeki tüm ölü boşluk ve genişletilebilir boru ortadan kaldırır.
Abstract
Investigation of the pathophysiology of injury after intracerebral hemorrhage (ICH) requires a reproducible animal model. While ICH accounts for 10-15% of all strokes, there remains no specific effective therapy. The autologous blood injection model in mice involves the stereotaxic injection of arterial blood into the basal ganglia mimicking a spontaneous hypertensive hemorrhage in man. The response to hemorrhage can then be studied in vivo and the neurobehavioral deficits quantified, allowing for description of the ensuing pathology and the testing of potential therapeutic agents. The procedure described in this protocol uses the double injection technique to minimize risk of blood reflux up the needle track, no anticoagulants in the pumping system, and eliminates all dead space and expandable tubing in the system.
Protocol
Discussion
Intraserebral kanama, spontan bazal ganglia kanama tekrarlanabilir bir model otolog kuyruk arter kan sonuçlarını kullanarak farelerde Bu cerrahi modeli. Farelerde bir ICH modeli patofizyolojisi araştırmak amacıyla transgenik hayvanların durumu avantaj sunar; Ancak, bunların küçük boyutlu büyük hayvanların daha nöroşirürjikal işlemler teknik açıdan daha zor hale getirir.
Kollajenaz model ve otolog kan enjeksiyonu modeli deneysel ICH iki köklü modelleri. Kollajenaz modeli…
Disclosures
The authors have nothing to disclose.
Acknowledgements
Bu iş, Translasyonel Tıp ve Tedavi Enstitüsü dostluk ve Pennsylvania Üniversitesi ve Marlene L. Cohen ve Jerome H. Fleisch Scholar Grant, Tıp ve Mühendislik (T32HL007954) Enstitüsü eğitim bursu tarafından finanse edildi Connecticut Üniversitesi Sağlık Merkezi (LHS) ve NIH NS-029.331 (FAW).
Materials
Stereotaxic frame for mouse neurosurgery (Stoelting, 51925)
Microinfusion pump and processor (UMP-3 and Micro4, World Precision Instruments, Sarasota, FL)
Mouse warmer (Stoelting, 50300)
Inhalational mouse anesthesia (Braintree Scientific, EZ-AF9000)
25 μL gastight borosilicate Hamilton syringe with coated plunger and no needle
(Hamilton company, Reno, NV, 1702RN syringe: 765401, ferrule: 30949, spacer: 30946)
fused silica needle cut to 2 cm length (Hamilton, 17739)
*note Hamilton syringe and fused silica needle may be reused for multiple surgeries if sterilized prior to each surgery. These materials are crucial to avoid blood clotting.
Sterile surgical gloves
Surgical gown, bonnet and mask
Betadine
75% ethanol
sterile 27 g needle (single use)
sterile 1 cc syringe (single use)
sterile surgical blade
Cidex
sterile water
buprenorphine and isoflurane
sterile gauze
paraffin wax paper squares
Veterinary surgical glue (Vetbond, 3M, St. Paul, MN)
References
- Hua, Y., Schallert, T., Keep, R. F., Wu, J., Hoff, J. T., Xi, G. Behavioral Tests After Intracerebral Hemorrhage in the Rat. Stroke. 33, 2478-2484 (2002).
- James, M., Warner, D., Laskowitz, D. Preclinical Models of Intracerebral Hemorrhage: A Translational Perspective. Neurocritical Care. 9, 139-152 (2008).
- Foerch, C., Arai, K., Jin, G., Park, K. -. P., Pallast, S., van Leyen, K., Lo, E. H. Experimental Model of Warfarin-Associated Intracerebral Hemorrhage. Stroke. 39, 3397-3404 (2008).
- Nakamura, T., Xi, G., Hua, Y., Schallert, T., Hoff, J. T., Keep, R. F. Intracerebral hemorrhage in mice: model characterization and application for genetically modified mice. Journal of Cerebral Blood Flow and Metabolism. 24, 487-494 (2004).
- Rynkowski, M. A., Kim, G. H., Komotar, R. J., Otten, M. L., Ducruet, A. F., Zacharia, B. E., Kellner, C. P., Hahn, D. K., Merkow, M. B., Garrett, M. C. A mouse model of intracerebral hemorrhage using autologous blood infusion. Nat. Protocols. 3, 122-128 (2008).
- Wang, J., Fields, J., Doré, S. The development of an improved preclinical mouse model of intracerebral hemorrhage using double infusion of autologous whole blood. Brain Research. 1222, 214-221 (2008).
- Zhao, X., Sun, G., Zhang, J., Strong, R., Song, W., Gonzales, N., Grotta, J. C., Aronowski, J. Hematoma resolution as a target for intracerebral hemorrhage treatment: Role for peroxisome proliferator-activated receptor γ in microglia/macrophages. Annals of Neurology. 61, 352-362 (2007).
