著者は、彼女の組織学的仕事のためクリスティPahrmannに感謝。 資金ソーニャSchrepferは、ドイツ学術振興協会（DFG）（SCHR992 / 3 1及びSCHR992/4-1）から研究助成を受けています。]

約250〜300グラムの重さのラットを、チャールズリバー（Sandhoferウェグ7、D - 97633 Sulzfeld）から購入しています。 移植は、レシピエントのドナー、およびACIラットとしてPVGラットを使用して実行されます。 ラットは通常の条件、飼育標準ラット固形飼料および水を自由libidum下に収容されています。 すべての手術器具は使用前に滅菌されています。 ドナーの準備： 誘導チャンバーを用いて（2,5-3％）イソフルランでラットを麻酔。 <ol><li>腹部と胸部の毛を剃ると、その背中にラットを配置し、麻酔を維持するために、その鼻と口にフェイスマスクを置く。 </li><li>広くプロボ-ヨウ素を使用して腹部と胸部領域を駆除する、次回の使用の80％エタノール、このステップを3回繰り返します。 </li><li>ラットがanesthesized十分であることを確認するために後肢の足をつまんで反射神経をチェックしてください。 </li><li>腹部を開いて腹部大動脈に穴をカットすることでラットを放血させる。 </li><li>慎重に下行胸部大動脈を見つけるために胸部を開きます。 </li><li>脂肪、神経、食道などの周囲の組織から胸部大動脈を解剖。 </li><li>大動脈の組織のダメージを与えることなく、肘当てを使用して大動脈の1.5センチメートル一部を撤回する。 </li><li>冷滅菌生理食塩水で十分に大動脈移植を灌流と4でグラフト℃にて保存してください。 </li></ol>受信者： 誘導チャンバーを用いて（2,5-3％）イソフルランでラットを麻酔。体温は、手術中維持されます。 <ol><li>腹部領域のひげをそると麻酔中に乾燥から目を防ぐために、眼軟膏を適用する。 </li><li>その背中にネズミを置き、麻酔を維持するために、その鼻と口にフェイスマスクを置く。 </li><li>このステップを3回繰り返す、80％エタノールを使用する次のプロボ、ヨウ素を使用して腹部を、消毒。 </li><li>ラットがanesthesized十分であることを確認するために後肢の足をつまんで反射神経をチェックしてください。 </li><li>腹部を開くには二つのステップで皮膚や筋肉を分離正中腹部切開を行います。 </li><li>暖めた生理食塩水しっとりパウダーフリー手袋で腸を置きます。水分の損失を防ぐために、腸の周りに手袋を折る。 </li><li>腹部大動脈をカバーする脂肪組織を削除します。 </li><li>大動脈の血管の枝にダメージを与えるように注意して、分岐する大動脈領域を形成する解剖。 </li><li>大動脈の必要なライゲーション枝場合。 </li><li>最初の血流を停止するには解離した大動脈の大動脈部分に顕微クランプを使用してください。 </li><li>次に、大動脈の分岐部に近い秒クランプを配置します。 </li><li>今すぐ血流が停止していることを、大動脈の短いセグメントを削除します。 </li><li>氷の上に0.9％滅菌生理食塩水に保たれているドナーの大動脈移植片を、取る、適切な長さに短縮し、ギャップに配置します。 </li><li> 8から0 proleneの縫合糸（エチコン、ノルダーシュテット、ドイツ）を使用して実行中の縫合を行う、受信者の大動脈へのドナーの大動脈を接続します。頭蓋エンドツーエンドの吻合で始まります。 </li><li>遠位端々吻合が終了すると、慎重に遠位クランプを開きます。 </li><li>出血は、遠位クランプを開いた後がないときは、慎重に頭蓋クランプを開きます。縫合糸で出血の場合には、出血を見つけ、一つのステッチを使用して出血を止める、再びクランプを閉じます。 </li><li>大動脈の遠位端に表示されるパルスがあるはずです。 </li><li>次の腹部に戻して腸を動かす。 </li><li>温めておいた滅菌生理食塩水で腹部をフラッシュします。 </li><li> 6から0 prolene実行中の縫合糸（エチコン、ノルダーシュテット、ドイツ）を使用して腹壁の筋層を閉じます。 </li><li>皮膚を閉じるには、縫合糸を実行している5から0 prolene（エチコン、ノルダーシュテット、ドイツ）を使用してください。 </li><li>ラットが麻酔に入れたまま、皮下カルプロフェンを4-5mg/kg注入する。 </li><li>手順のこのタイプのための十分な鎮痛を提供するために、metamizolは3日後に移植のための鎮痛薬のための飲料水（100mlあたり50mgのMetamizol）に追加されます。 </li></ol>

<ol>
	<li>Deuse, T., Hoyt, G., Koyanagi, T., Robbins, R. C., Schrepfer, S. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Prevention+and+Inhibition+But+Not+Reversion+of+Chronic+Allograft+Vasculopathy+by+FK778.">Prevention and Inhibition But Not Reversion of Chronic Allograft Vasculopathy by FK778.</a> Transplantation. 85, 870-877 (2008).</li><li>Mennander, A., Tiisala, S., Halttunen, J., Yilmaz, S., Paavonen, T., Hayry, P. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Chronic+rejection+in+rat+allografts.+An+experimental+model+for+transplant+arteriosclerosis.">Chronic rejection in rat allografts. An experimental model for transplant arteriosclerosis.</a> Arterioscler Thromb Vasc Biol. 11, 671-680 (1991).</li><li>Ono, K., Lindsey, E. S. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Improved+technique+of+heart+transplantation+in+rats.">Improved technique of heart transplantation in rats.</a> J Thorac Cardiovasc Surg. 57, 225-225 (1969).</li><li>Poston, R. S., Billingham, M., Hoyt, E. G. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Rapamycin+reverses+chronic+graft+vascular+disease+in+a+novel+cardiac+allograft+model.">Rapamycin reverses chronic graft vascular disease in a novel cardiac allograft model.</a> Circulation. 100, 67-100 (1999).</li><li>Schrepfer, S., Deuse, T., Koch-Nolte, F., Krieger, T., Haddad, M., Schäfer, H., Pelletier, M. P., Robbins, R. C., Reichenspurner, H. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=FK778+in+Experimental+Xenotransplantation:+A+Detailed+Analysis+of+Drug+Efficacy.">FK778 in Experimental Xenotransplantation: A Detailed Analysis of Drug Efficacy.</a> J Heart Lung Transplant. 26, 70-77 (2007).</li></ol>

利害の衝突は宣言されません。

いくつかの理由のために我々は、同所性大動脈移植モデルの異所性心移植モデルに比べてTVPの開発を調査するため、より正確な方法を見つけました。 手術手技に関しては、大動脈移植モデルでは、異所性心臓移植モデルは外科医のスキルに、より複雑でエラーが発生しやすい課題を考えることができるのに対し、単独でエンドツーエンド吻合の成果を必要とする、容易に実現可能な方法...

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<tr>
<td>Surgical microscope (magnification 25x)</td>
<td>&nbsp;</td>
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<td>Isoflurane</td>
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<td>shaver</td>
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<td>Provo-Iodine</td>
<td>&nbsp;</td>
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<td>ice cold 0.9% saline</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
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<td>prewarmed 0.9% sterile saleine</td>
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<td>eye ointment</td>
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<td>glove</td>
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<td>microsurgical scissirs</td>
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<td>forceps</td>
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<td>clamps</td>
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<td>8-0 suture (prolene)</td>
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<td>6-0 suture (prolene)</td>
<td>&nbsp;</td>
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<td>5-0 suture (prolene)</td>
<td>&nbsp;</td>
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<td>Carprofen</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
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<td>Metamizol</td>
<td>&nbsp;</td>
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orthotopic aortic transplantation: a rat model to study the development of chronic vasculopathy

慢性拒絶反応の研究のモデルは、移植の血管障害（TVP）の開発中にpathobiologicalと病態生理学的プロセスを調査するために不可欠です。 心臓血管の慢性拒絶反応の研究のために一般的に使用される動物モデルは、実験用げっ歯類で行わ異所性心移植モデルです。小野とリンジー（3）それらの技法を発表して以来、このモデルは実験で広く使用されています。血管での調査結果を分析するために、心臓を切片にする必要がありますし、すべての船舶は、測定する必要があります。 心血管questioningsの慢性拒絶反応を調査する別の方法では、大動脈移植モデル（1,2）である。同所性大動脈移植モデルでは、大動脈を容易に組織学的に（2）評価することができます。急性血管性拒絶反応は、我々は臨床の現場で見つかったものと似てCAVの発症を予防していない主要な交絡因子とシクロス​​ポリンA（CSA）の治療、（4ではないのでPVG -に- ACIモデルは、CAVの研究に特に便利です。 ）。 CsAのA7日間は、急性拒絶反応を防ぐためとTVPの開発と長期生存を達成するために、このモデルでは必須です。 このモデルはまた、異種のモデル（5）における急性細胞性拒絶反応とメディアの壊死を調査するために使用することができます。

Watch this Scientific Journal Video about Orthotopic Aortic Transplantation: A Rat Model to Study the Development of Chronic Vasculopathy at JoVE.com

Orthotopic Aortic Transplantation: A Rat Model to Study the Development of Chronic Vasculopathy

このビデオでは、ラットでは移植の血管障害（TVP）の開発を研究するための単純なモデルとして同所性大動脈移植モデルを示しています。

同所性大動脈移植：慢性血管障害の発生研究のラットモデル

Research models of chronic rejection are essential to investigate pathobiological and pathophysiological processes during the development of transplant ...

orthotopic-aortic-transplantation-rat-model-to-study-development

Research

JoVE Journal

Medicine

12.0K ビュー.  University Hospital Hamburg. このビデオでは、ラットでは移植の血管障害（TVP）の開発を研究するための単純なモデルとして同所性大動脈移植モデルを示しています。

ビデオ: Orthotopic Aortic Transplantation: A Rat Model to Study the Development of Chronic Vasculopathy

Human Internal Mammary Artery (IMA) Transplantation and Stenting: A Human Model to Study the Development of In-Stent Restenosis

Preclinical in vivo research models to investigate pathobiological and pathophysiological processes in the development of intimal hyperplasia after vessel stenting are crucial for translational approaches1,2.
The commonly used animal models include mice, rats, rabbits, and pigs3-5. However, the translation of these models into clinical settings remains difficult, since those biological processes are already studied in animal vessels but never performed before in human research models6,7. In this video we demonstrate a new humanized model to overcome this translational gap. The shown procedure is reproducible, easy, and fast to perform and is suitable to study the development of intimal hyperplasia and the applicability of diverse stents.
This video shows how to perform the stent technique in human vessels followed by transplantation into immunodeficient rats, and identifies the origin of proliferating cells as human.

Human Internal Mammary Artery IMA Transplantation and Stenting: A Human Model to Study the Development of In-Stent Restenosis

This video shows a model to study the development of intimal hyperplasia after stent deployment using a human vessel (IMA) in an immunodeficient rat model.

人間の内胸動脈（IMA）移植およびステント留置術：ステント内再狭窄の開発を研究するための人体モデル

Preclinical in vivo research models to investigate pathobiological and pathophysiological processes in the development of intimal hyperplasia after vessel ...

医学

Development of Obliterative Bronchiolitis in a Murine Model of Orthotopic Lung Transplantation

Orthotopic lung transplantation in rats was first reported by Asimacopoulos and colleagues in 1971 1. Currently, this method is well accepted and standardized not only for the study of allo-rejection but also between syngeneic strains for examining mechanisms of ischemia-reperfusion injury after lung transplantation. Although the application of the rat and other large animal model 2 contributed significantly to the elucidation of these studies, the scope of those investigations is limited by the scarcity of knockout and transgenic rats. Due to no effective therapies for obliterative bronchiolitis, the leading cause of death in lung transplant patients, there has been an intensive search for pre-clinical models that replicate obliterative bronchiolitis. The tracheal allograft model is the most widely used and may reproduce some of the histopathologic features of obliterative bronchiolitis 3. However, the lack of an intact vasculature with no connection to the recipient's conducting airways, and incomplete pathologic features of obliterative bronchiolitis limit the utility of this model 4. Unlike transplantation of other solid organs, vascularized mouse lung transplants have only recently been reported by Okazaki and colleagues for the first time in 2007 5. Applying the basic principles of the rat lung transplant, our lab initiated the obliterative bronchiolitis model using minor histoincompatible antigen murine orthotopic single-left lung transplants which allows the further study of obliterative bronchiolitis immunopathogenesis6.

Obliterative bronchiolitis is the key impediment to the long-term survival of lung transplant recipients and the lack of a robust preclinical model precludes examining obliterative bronchiolitis immunopathogenesis. Unlike other solid organ transplants, vascularized mouse lung transplantation has only recently been developed. Here we show our independently developed obliterative bronchiolitis model after murine orthotopic single-lung transplantation.

同所性肺移植のマウスモデルにおける閉塞性細気管支炎の開発

Orthotopic lung transplantation in rats was first reported by Asimacopoulos and colleagues in 1971 1. Currently, this method is well accepted and ...

Orthotopic Aortic Transplantation in Mice for the Study of Vascular Disease

Vascular procedures involving anastomoses in the mouse are generally thought to be difficult and highly dependent on the skill of the individual surgeon. This is largely true, but there are a number of important principles that can reduce the difficulty of these procedures and enhance reproducibility. Orthotopic aortic transplantation is an excellent procedure in which to learn these principles because it involves only two end-to-end anastomoses, but requires good suturing technique and handling of the vessels for consistent success. This procedure begins with the procurement of a length of abdominal aorta from a donor animal, followed by division of the native aorta in the recipient. The procured aorta is then placed between the divided ends of the recipient aorta and sutured into place using end-to-end anastomoses. To accomplish this objective successfully requires a high degree of concentration, good tools, a steady hand, and an appreciation of how easily the vasculature of a mouse can be damaged, resulting in thrombosis. Learning these important principles is what occupies most of the beginner's time when learning microsurgery in small rodents. Throughout this protocol, we refer to these important points. This model can be used to study vascular disease in a variety of different experimental systems1-8. In the context shown here, it is most often used for the study of post-transplant vascular disease, a common long-term complication of solid organ transplantation in which intimal hyperplasia occurs within the allograft. The primary advantage of the model is that it facilitates quantitative morphometric analyses and the transplanted vessel lies contiguous to the endogenous vessel, which can serve as an additional control9. The technique shown here is most often used for mice weighing 18-25 grams. We have accumulated most of our experience using the C57BL/6J, BALB/cJ, and C3H/HeJ strains.

We describe a technique in which a section of the abdominal aorta from a mouse is transplanted orthotopically to just below the renal arteries in an allogeneic or syngeneic recipient. This technique can be useful in studies in which transplantation of large arteries of uniform size is deemed advantageous.

血管疾患の研究のためのマウスにおける同所性大動脈移植

Vascular procedures involving anastomoses in the mouse are generally thought to be difficult and highly dependent on the skill of the individual surgeon. ...

Surgical Procedures for a Rat Model of Partial Orthotopic Liver Transplantation with Hepatic Arterial Reconstruction

Orthotopic liver transplantation (OLT) in rats using a whole or partial graft is an indispensable experimental model for transplantation research, such as studies on graft preservation and ischemia-reperfusion injury 1,2, immunological responses 3,4, hemodynamics 5,6, and small-for-size syndrome 7. The rat OLT is among the most difficult animal models in experimental surgery and demands advanced microsurgical skills that take a long time to learn. Consequently, the use of this model has been limited. Since the reliability and reproducibility of results are key components of the experiments in which such complex animal models are used, it is essential for surgeons who are involved in rat OLT to be trained in well-standardized and sophisticated procedures for this model.
While various techniques and modifications of OLT in rats have been reported 8 since the first model was described by Lee et al. 9 in 1973, the elimination of the hepatic arterial reconstruction 10 and the introduction of the cuff anastomosis technique by Kamada et al. 11 were a major advancement in this model, because they simplified the reconstruction procedures to a great degree. In the model by Kamada et al., the hepatic rearterialization was also eliminated. Since rats could survive without hepatic arterial flow after liver transplantation, there was considerable controversy over the value of hepatic arterialization. However, the physiological superiority of the arterialized model has been increasingly acknowledged, especially in terms of preserving the bile duct system 8,12 and the liver integrity 8,13,14.
In this article, we present detailed surgical procedures for a rat model of OLT with hepatic arterial reconstruction using a 50% partial graft after ex vivo liver resection. The reconstruction procedures for each vessel and the bile duct are performed by the following methods: a 7-0 polypropylene continuous suture for the supra- and infrahepatic vena cava; a cuff technique for the portal vein; and a stent technique for the hepatic artery and the bile duct.

Orthotopic liver transplantation in rats is an indispensable experimental model for biomedical research. Here we present our surgical procedures for orthotopic rat liver transplantation with hepatic arterial reconstruction using a 50% partial graft.

肝動脈再建を用いた部分同所性肝移植のラットモデルのための外科的処置

Orthotopic liver transplantation (OLT) in rats using a whole or partial graft is an indispensable experimental model for transplantation research, such as ...

A Model of Chronic Nutrient Infusion in the Rat

Chronic exposure to excessive levels of nutrients is postulated to affect the function of several organs and tissues and to contribute to the development of the many complications associated with obesity and the metabolic syndrome, including type 2 diabetes. To study the mechanisms by which excessive levels of glucose and fatty acids affect the pancreatic beta-cell and the secretion of insulin, we have established a chronic nutrient infusion model in the rat. The procedure consists of catheterizing the right jugular vein and left carotid artery under general anesthesia; allowing a 7-day recuperation period; connecting the catheters to the pumps using a swivel and counterweight system that enables the animal to move freely in the cage; and infusing glucose and/or Intralipid (a soybean oil emulsion which generates a mixture of approximately 80% unsaturated/20% saturated fatty acids when infused with heparin) for 72 hr. This model offers several advantages, including the possibility to finely modulate the target levels of circulating glucose and fatty acids; the option to co-infuse pharmacological compounds; and the relatively short time frame as opposed to dietary models. It can be used to examine the mechanisms of nutrient-induced dysfunction in a variety of organs and to test the effectiveness of drugs in this context.

A protocol for chronic infusions of glucose and Intralipid in rats is described. This model can be used to study the impact of nutrient excess on organ function and physiological parameters.

ラットにおける慢性栄養注入のモデル

Chronic exposure to excessive levels of nutrients is postulated to  affect the function of several organs and tissues and to contribute to the  ...

Murine Corneal Transplantation: A Model to Study the Most Common Form of Solid Organ Transplantation

Corneal transplantation is the most common form of organ transplantation in the United States with between 45,000 and 55,000 procedures performed each year. While several animal models exist for this procedure and mice are the species that is most commonly used. The reasons for using mice are the relative cost of using this species, the existence of many genetically defined strains that allow for the study of immune responses, and the existence of an extensive array of reagents that can be used to further define responses in this species. This model has been used to define factors in the cornea that are responsible for the relative immune privilege status of this tissue that enables corneal allografts to survive acute rejection in the absence of immunosuppressive therapy. It has also been used to define those factors that are most important in rejection of such allografts. Consequently, much of what we know concerning mechanisms of both corneal allograft acceptance and rejection are due to studies using a murine model of corneal transplantation. In addition to describing a model for acute corneal allograft rejection, we also present for the first time a model of late-term corneal allograft rejection.

Mice have been used as a model for studying many forms of transplantation, including corneal transplantation. We describe in this report a murine model for both acute and late-term corneal transplantation.

ネズミ角膜移植：固体臓器移植の最も一般的な形態を研究するためのモデル

Corneal transplantation is the most common form of organ transplantation in the United States with between 45,000 and 55,000 procedures performed each ...

Isometric Contractility Measurement of the Mouse Mesenteric Artery Using Wire Myography

The wire myograph technique is used to assess the contractility of vascular smooth muscles in response to depolarization, GPCR agonists/inhibitors and drugs. It is widely used in many studies on the physiological functions of vascular smooth muscle, the pathogenesis of vascular diseases such as hypertension, and the development of smooth muscle relaxant drugs. The mouse is a widely used model animal with a large pool of disease models and genetically modified strains. We introduced this method to measure the isometric contraction of mouse mesenteric artery in detail. A 1.4-mm segment of mouse mesenteric resistance artery was isolated and mounted on a myograph chamber by passing two steel wires through its lumen. After equilibration and normalization steps, the vessel segment was potentiated by a high-K+ solution twice prior to the contraction assay. As an example of the application of this method in drug development, we measured the relaxant effect of a novel natural substance, neoliensinine, isolated from a Chinese herb, embryos of the lotus seed (Nelumbo nucifera Gaertn.) on mouse mesenteric arteries. The vessel segments mounted on the myograph chamber were stimulated with a high-K+ solution. When the force tension reached a stable sustained phase, cumulative doses of neoliensinine were added to the chamber. We found that neoliensinine had a dose-dependent relaxant effect on smooth muscle contraction, thus suggesting that it bears potential activity against hypertension. In addition, as the vessel segment can survive at least 4 hours after mounting and maintain contractility induced by the high-K+ solution for many times, we suggest that the wire myograph system may be used for the time-consuming process of drug screening.

The wire myograph technique is used to investigate vascular smooth muscle functions and screen new drugs. We report a detailed protocol for measuring the isometric contractility of the mouse mesenteric artery and for screening new relaxants of vascular smooth muscle.

ワイヤー図法を使用してマウスの腸間膜動脈の等尺性収縮力測定

The wire myograph technique is used to assess the contractility of vascular smooth muscles in response to depolarization, GPCR agonists/inhibitors and ...

A Pre-Clinical Porcine Model of Orthotopic Heart Transplantation

Fifty-years following the first successful report, cardiac transplantation remains the gold-standard treatment for eligible patients with advanced heart failure. Multiple small-animal models of heart transplantation have been used to study the acute and long-term effects of novel therapies. However, few are tested and demonstrated success in clinical trials. It is of critical importance to evaluate new therapies in a clinically relevant large-animal model for efficient and reliable translation of basic studies&#39;&#160;findings. Here, we describe a pre-clinical large-animal (porcine) model of orthotopic heart transplantation that has been firmly established and previously used to investigate novel cardioprotective strategies. This procedure focuses on acute ischemia-reperfusion injury and is a reliable method to investigate novel interventions which have been tested and validated in smaller experimental models, such as the murine model. We demonstrate its usefulness in assessing cardiac performance during the early post-transplantation period and other potential possibilities enabled by the model.

Here, we describe a pre-clinical large-animal (porcine) model of orthotopic heart transplantation that has been firmly established and utilized to investigate novel cardioprotective strategies.

オルソトピック心臓移植の前臨床ブタモデル

Fifty-years following the first successful report, cardiac transplantation remains the gold-standard treatment for eligible patients with advanced heart ...

Orthotopic Rat Kidney Transplantation: A Novel and Simplified Surgical Approach

Kidney transplantation offers increased survival rates and improved quality of life for patients with end-stage renal disease, as compared to any type of renal replacement therapy. Over the past few decades, the rat kidney transplantation model has been used to study the immunological phenomena of rejection and tolerance. This model has become an indispensable tool to test new immunomodulatory pharmaceuticals and regimens prior to proceeding with expensive preclinical large animal studies.
This protocol provides a detailed overview of how to reliably perform orthotopic kidney transplantation in rats. This protocol includes three distinctive steps that increase the probability of success: perfusion of the donor kidney by flushing through the portal vein and the use of a cuff system to anastomose the renal veins and ureters, thereby decreasing cold and warm ischemia times. Using this technique, we have achieved survival rates beyond 6 months with normal serum creatinine in animals with syngeneic or tolerant kidney transplants. Depending on the aim of the study, this model can be modified by pre- or posttransplant treatments to study the acute, chronic, cellular, or antibody-mediated rejection. It is a reproducible, reliable, and cost-effective animal model to study different aspects of kidney transplantation.

The purpose of this manuscript and protocol is to explain and demonstrate in detail the surgical procedure of orthotopic kidney transplantation in rats. This method is simplified to achieve the correct perfusion of the donor kidney and shorten the reperfusion time by using the venous and ureteral cuff anastomosis technique.

Orthotopic ラット腎移植: 新規かつ簡便な外科的アプローチ

Kidney transplantation offers increased survival rates and improved quality of life for patients with end-stage renal disease, as compared to any type of ...

Reduced Complications after Arterial Reconnection in a Rat Model of Orthotopic Liver Transplantation

The rat orthotopic liver transplantation (OLT) model is a powerful tool to study acute and chronic rejection. However, it is not a complete representation of human liver transplantation due to the absence of arterial reconnection. Described here is a modified transplantation procedure that includes the incorporation of hepatic artery (HA) reconnection, leading to a marked improvement in transplant outcomes. With a mean anhepatic time of 12 min and 14 s, HA reconnection results in improved perfusion of the transplanted liver and an increase in long-term recipient survival from 37.5% to 88.2%. This protocol includes the use of 3D-printed cuffs and holders to connect the portal vein and infrahepatic inferior vena cava. It can be implemented for studying multiple aspects of liver transplantation, from immune response and infection to technical aspects of the procedure. By incorporating a simple and practical method for arterial reconnection using a microvascular technique, this modified rat OLT protocol closely mimics aspects of human liver transplantation and will serve as a valuable and clinically relevant research model.

The goal of this study is to modify the rat orthotopic liver transplant model to better represent human liver transplantation and improve recipient survival. The presented method reestablishes hepatic arterial inflow by connecting the donor liver&#39;s common hepatic artery to the recipient liver&#39;s proper hepatic artery.

ラット型異形肝移植モデルにおける動脈リコネクション後の合併症の減少

The rat orthotopic liver transplantation (OLT) model is a powerful tool to study acute and chronic rejection. However, it is not a complete representation ...