Name: isolated lung perfusion system in the rabbit model
Uploaded: 2021-07-15T14:30:00
Description: Watch this Scientific Journal Video about Isolated Lung Perfusion System in the Rabbit Model at JoVE.com

The authors would like to thank Ph.D. Bettina Sommer Cervantes for her support in the writing of this manuscript, and Kitzia Elena Lara Safont for her support with the illustrations.

The isolated perfusion system in the rabbit model has been widely used in the Bronchial Hyperresponsiveness Laboratory at the Instituto Nacional de Enfermedades Respiratorias. The protocol includes New Zealand rabbits with an approximate weight of 2.5-3 kg. All animals were kept in standard vivarium conditions and ad libitum feeding in compliance with the official Mexican guidelines for laboratory animals (NOM 062-ZOO-1999) and under the Guide for the Care and Use of Laboratory Animals (8th edition, 2...

<ol>
	<li>Dixon, W. E. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Contributions+to+the+physiology+of+the+lungs:+Part+I.+The+bronchial+muscles,+their+innervation,+and+the+action+of+drugs+upon+them.">Contributions to the physiology of the lungs: Part I. The bronchial muscles, their innervation, and the action of drugs upon them.</a> The Journal of Physiology. 29 (2), 97-173 (1903).</li><li>Nelson, K., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Animal+models+of+ex+vivo+lung+perfusion+as+a+platform+for+transplantation+research.">Animal models of ex vivo lung perfusion as a platform for transplantation research.</a> World Journal of Experimental Medicine. 4 (2), 7-15 (2014).</li><li>Roman, M. A., Nair, S., Tsui, S., Dunning, J., Parmar, J. S. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Ex+vivo+lung+perfusion:+a+comprehensive+review+of+the+development+and+exploration+of+future+trends.">Ex vivo lung perfusion: a comprehensive review of the development and exploration of future trends.</a> Transplantation. 96 (6), 509-518 (2013).</li><li>Delaunois, A., Gustin, P., Ansay, M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Multiple+muscarinic+receptor+subtypes+mediating+pulmonary+oedema+in+the+rabbit.">Multiple muscarinic receptor subtypes mediating pulmonary oedema in the rabbit.</a> Pulmonary Pharmacology. 7 (3), 185-193 (1994).</li><li>Delaunois, A., Gustin, P., Vargas, M., Ansay, M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Protective+effect+of+various+antagonists+of+inflammatory+mediators+against+paraoxon-induced+pulmonary+edema+in+the+rabbit.">Protective effect of various antagonists of inflammatory mediators against paraoxon-induced pulmonary edema in the rabbit.</a> Toxicology and Applied Pharmacology. 132 (2), 343-345 (1995).</li><li>Barr, H. A., Nicholas, T. E., Power, J. H. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Control+of+alveolar+surfactant+in+rats+at+rest+and+during+prolonged+hyperpnoea:+pharmacological+evidence+for+two+tissue+pools+of+surfactant.">Control of alveolar surfactant in rats at rest and during prolonged hyperpnoea: pharmacological evidence for two tissue pools of surfactant.</a> British Journal of Pharmacology. 93 (3), 473-482 (1988).</li><li>Machuca, T. N., Cypel, M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Ex+vivo+lung+perfusion.">Ex vivo lung perfusion.</a> Journal of Thoracic Disease. 6 (8), 1054-1062 (2014).</li><li>Steen, S., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=First+human+transplantation+of+a+nonacceptable+donor+lung+after+reconditioning+ex+vivo.">First human transplantation of a nonacceptable donor lung after reconditioning ex vivo.</a> The Annals of Thoracic Surgery. 83 (6), 2191-2194 (2007).</li><li>Cypel, M., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Technique+for+prolonged+normothermic+ex+vivo+lung+perfusion.">Technique for prolonged normothermic ex vivo lung perfusion.</a> The Journal of Heart and Lung Transplantation: The Official Publication of the International Society for Heart and Lung Transplantation. 27 (12), 1319-1325 (2008).</li><li>Cypel, M., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Normothermic+ex+vivo+lung+perfusion+in+clinical+lung+transplantation.">Normothermic ex vivo lung perfusion in clinical lung transplantation.</a> New England Journal of Medicine. 364 (15), 1431-1440 (2011).</li><li>Kao, C. C., Parulekar, A. D. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Is+perfusate+exchange+during.">Is perfusate exchange during.</a> Annals of Translational Medicine. 8 (3), 43 (2020).</li><li>Alquicira-Mireles, J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=.">.</a> Participaci&#243;n de la serotonina en los cambios de permeabilidad vascular en la preservaci&#243;n pulmonar en conejo. , (2013).</li><li>Arreola-Ram&#237;rez, J. L. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=.">.</a> Papel de la liberaci&#243;n de acetilcolina y sustancia P en el deterioro de la funci&#243;n pulmonar en un modelo experimental de preservaci&#243;n pulmonar en conejo. , (2009).</li><li>Isolated lung perfusion systems for small to large animal models. Harvard Apparatus. Hugo Sachs Elektronik (HSE) Available from: <a target="_blank" href="https://www.harvardapparatus.com/media/harvard/pdf/Isolated%20Lung%20Perfusion%20Systems%20Brochure.pdf">https://www.harvardapparatus.com/media/harvard/pdf/Isolated%20Lung%20Perfusion%20Systems%20Brochure.pdf</a> (2021)</li><li>Jiao, G. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Evolving+trend+of+EVLP:+Advancements+and+emerging+pathways.">Evolving trend of EVLP: Advancements and emerging pathways.</a> SN Comprehensive Clinical Medicine. 1 (4), 287-303 (2019).</li><li>Mordant, P., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Mesenchymal+stem+cell+treatment+is+associated+with+decreased+perfusate+concentration+of+interleukin-8+during+ex+vivo+perfusion+of+donor+lungs+after+18-hour+preservation.">Mesenchymal stem cell treatment is associated with decreased perfusate concentration of interleukin-8 during ex vivo perfusion of donor lungs after 18-hour preservation.</a> The Journal of Heart and Lung Transplantation: The Official Publication of the International Society for Heart and Lung Transplantation. 35 (10), 1245-1254 (2016).</li><li>Cowan, P. J., Hawthorne, W. J., Nottle, M. B. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Xenogeneic+transplantation+and+tolerance+in+the+era+of+CRISPR-Cas9.">Xenogeneic transplantation and tolerance in the era of CRISPR-Cas9.</a> Current Opinion in Organ Transplantation. 24 (1), 5-11 (2019).</li><li>Collaborators, G. C. R. D. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Prevalence+and+attributable+health+burden+of+chronic+respiratory+diseases,+1990-2017:+a+systematic+analysis+for+the+Global+Burden+of+Disease+Study+2017.">Prevalence and attributable health burden of chronic respiratory diseases, 1990-2017: a systematic analysis for the Global Burden of Disease Study 2017.</a> The Lancet Respiratory Medicine. 8 (6), 585-596 (2020).</li><li>Bravo-Reyna, C. C., Torres-Villalobos, G., Aguilar-Blas, N., Fr&#237;as-Guill&#233;n, J., Guerra-Mora, J. R. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Comparative+study+of+capillary+filtration+coefficient+(Kfc)+determination+by+a+manual+and+automatic+perfusion+system.+Step+by+step+technique+review.">Comparative study of capillary filtration coefficient (Kfc) determination by a manual and automatic perfusion system. Step by step technique review.</a> Physiological Research. 68 (6), 901-908 (2019).</li><li>Pereira, M. 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This work displays a general view of the isolated lung perfusion system, an essential technique in pulmonary physiology research. The isolated lung perfusion system offers a great degree of versatility in its uses and allows the evaluation of several parameters relevant in the testing of a wide range of hypotheses15. An isolated lung system is a tool with worldwide presence that, in the last decade, has further established its relevance for organ-specific evaluations and also expanded its usefulne...

Brodie and Dixon first described the ex-vivo lung perfusion system in 1903 1. Since then, it has become a gold standard tool for studying the physiology, pharmacology, toxicology, and biochemistry of the lungs2,3. The technique offers a consistent and reproducible way to evaluate the viability of lung transplants, and to determine the effect of inflammatory mediators such as histamine, arachidonic acid metabolites, and substance P, among others, as well as their interactions during pulmonary phenomena such as bronchoconstriction, atelectasis, and pulmonary edema. The isolated lung system has been a key technique in unveiling the important role of the lungs in the elimination of biogenic amines from general circulation4,5. Additionally, the system has been used to evaluate the biochemistry of pulmonary surfactant6. Over the last few decades, the ex-vivo lung perfusion system has become an ideal platform for lung transplantation research7. In 2001 a team lead by Stig Steen described the first clinical application of the ex-vivo lung perfusion system by using it to recondition the lungs of a 19-year-old donor, who was initially rejected by transplantation centers due to its injuries. The left lung was harvested and perfused for 65 min; afterward, it was successfully transplanted into a 70-year-old man with COPD8. Further research into lung reconditioning using the ex-vivo perfusion led to developing the Toronto technique for extended lung perfusion to assess and treat injured donor lungs9,10. Clinically, the ex-vivo lung perfusion system has shown to be a safe strategy to increase donor pools by treating and reconditioning sub-standard donor lungs, presenting no significant difference in risks or outcomes against standard criteria donors10. 
The main advantage of the isolated lung perfusion system is that the experimental parameters can be evaluated in a complete functional organ that preserves its physiological function under an artificial laboratory setup. Furthermore, it allows the measurement and manipulation of pulmonary mechanical ventilation to analyze the components of pulmonary physiology such as airway resistance, total vascular resistance, gas exchange, and edema formation, which to date cannot be measured precisely in vivo on lab animals2. Notably, the composition of the solution with which the lung is perfused can be fully controlled, enabling the addition of substances to evaluate their effects in real-time and sample collection from perfusion for further study11. Researchers working with the isolated lung system should bear in mind that mechanical ventilation causes decay of the pulmonary tissue shortening its useful time. This progressive fall in mechanical parameters can be significantly delayed by hyperinflating the lungs occasionally during the time of the experiment4. Still, the preparation cannot usually last more than eight hours. Another consideration for the ex-vivo lung perfusion system is the absence of central nervous regulation and lymphatic drainage. The effects of their absence are not yet fully understood and could potentially be a source of bias in certain experiments. 
The isolated lung perfusion system technique can be performed in the rabbit model with a high degree of consistency and reproducibility. This work describes the technical and surgical procedures for the implementation of the ex-vivo isolated lung perfusion technique as developed for the rabbit model at Instituto Nacional de Enfermedades Respiratorias in Mexico City, intending to share the insights and provide a clear guide on key steps in the application of this experimental model.

<table border="1" fo:keep-together.within-page="1" fo:keep-with-next.within-page="always">
	<tbody>
		<tr>
			<td>2-Stop Tygon E-Lab Tubing, 3.17 mm ID, 12/pack, Black/White</td>
			<td>Hugo Sachs Elektronik (HSE)</td>
			<td>73-1864</td>
			<td></td>
		</tr>
		<tr>
			<td>Adapter for Positive Pressure Ventilation on IPL-4</td>
			<td>Hugo Sachs Elektronik (HSE)</td>
			<td>73-4312</td>
			<td></td>
		</tr>
		<tr>
			<td>Adapter for Positive Pressure Ventilation on IPL-4</td>
			<td>Hugo Sachs Elektronik (HSE)</td>
			<td>73-4312</td>
			<td></td>
		</tr>
		<tr>
			<td>Alternative Pressure-Free Gas Supply for IPL-4: To supply the trachea with gas mixture different from room air during negative ventilation</td>
			<td>Hugo Sachs Elektronik (HSE)</td>
			<td>73-4309</td>
			<td></td>
		</tr>
		<tr>
			<td>Base Unit for the Rabbit to Fetal Pig Isolated Perfused Lung</td>
			<td>Hugo Sachs Elektronik (HSE)</td>
			<td>73-4138</td>
			<td></td>
		</tr>
		<tr>
			<td>Bovine serum A2:D41albumin lyophilized powder</td>
			<td>sigma</td>
			<td>3912</td>
			<td>500 g</td>
		</tr>
		<tr>
			<td>Calcium chloride, CaCl2&#183;2H2O.</td>
			<td>JT Baker</td>
			<td>10035-04-8</td>
			<td></td>
		</tr>
		<tr>
			<td>Cryogenic vials</td>
			<td>Corning</td>
			<td>430659</td>
			<td>2 mL</td>
		</tr>
		<tr>
			<td>D-glucosa, C6H12O6.</td>
			<td>sigma</td>
			<td>G5767</td>
			<td></td>
		</tr>
		<tr>
			<td>Differential Low Pressure Transducer DLP2.5, Range +- 2.5 cmH2O, HSE Connector</td>
			<td>Hugo Sachs Elektronik (HSE)</td>
			<td>73-3882</td>
			<td></td>
		</tr>
		<tr>
			<td>Differential Pressure Transducer MPX, Range +- 100 cmH2O, HSE Connector</td>
			<td>Hugo Sachs Elektronik (HSE)</td>
			<td>73-0064</td>
			<td></td>
		</tr>
		<tr>
			<td>Eppendorf tubes</td>
			<td></td>
			<td></td>
			<td></td>
		</tr>
		<tr>
			<td>Ethanol absolute HPLC grade</td>
			<td>Caledon</td>
			<td></td>
			<td></td>
		</tr>
		<tr>
			<td>Falcon tubes</td>
			<td></td>
			<td></td>
			<td>14 mL</td>
		</tr>
		<tr>
			<td>Harvard Peristaltic Pump P-230 (Complete with Control Box and P-230 Motor Drive)</td>
			<td>Hugo Sachs Elektronik (HSE)</td>
			<td>70-7001</td>
			<td></td>
		</tr>
		<tr>
			<td>Heated Linear Pneumotachometer 0 to 10 L/min flow range</td>
			<td>Hugo Sachs Elektronik (HSE)</td>
			<td>59-9349</td>
			<td></td>
		</tr>
		<tr>
			<td>Heater Controller for Single Pneumotachometer 230 VAC, 50 Hz</td>
			<td>Hugo Sachs Elektronik (HSE)</td>
			<td>59-9703</td>
			<td></td>
		</tr>
		<tr>
			<td>Heparin</td>
			<td>PISA</td>
			<td></td>
			<td>5000 UI</td>
		</tr>
		<tr>
			<td>HPLC Column (C18 100A 5U)</td>
			<td>Alltech</td>
			<td>98121213</td>
			<td>150 mm x 4.6 mm</td>
		</tr>
		<tr>
			<td>Hydrophilic Syringe Filter</td>
			<td>Millex</td>
			<td>SLLGR04NL</td>
			<td>4 mm</td>
		</tr>
		<tr>
			<td>IPL-4 Core System for Isolated Rabbit to Fetal Pig Lung, 230</td>
			<td>Hugo Sachs Elektronik (HSE)</td>
			<td>73-4296</td>
			<td></td>
		</tr>
		<tr>
			<td>IPL-4 Core System for Isolated Rabbit to Fetal Pig Lung, 230 V</td>
			<td>Hugo Sachs Elektronik (HSE)</td>
			<td>73-4296</td>
			<td></td>
		</tr>
		<tr>
			<td>Jacketed Glass Reservoir for Buffer Solution, with Frit and Tubing, 6.0 L</td>
			<td>Hugo Sachs Elektronik (HSE)</td>
			<td>73-0322</td>
			<td></td>
		</tr>
		<tr>
			<td>Lauda Thermostatic Circulator, Type E-103, 230 V/50 Hz, 3 L Bath Volume, Temperature Range 20 to 150&#176;C</td>
			<td>Hugo Sachs Elektronik (HSE)</td>
			<td>73-0125</td>
			<td></td>
		</tr>
		<tr>
			<td>Left Atrium Cannula for Rabbit with Basket, OD 5.9 mm</td>
			<td>Hugo Sachs Elektronik (HSE)</td>
			<td>73-4162</td>
			<td></td>
		</tr>
		<tr>
			<td>Low Range Blood Pressure Transducer P75 for PLUGSYS Module</td>
			<td>Hugo Sachs Elektronik (HSE)</td>
			<td>73-0020</td>
			<td></td>
		</tr>
		<tr>
			<td>Magnesium sulfate heptahydrate, MgSO4&#183;7H2O</td>
			<td>JT Baker</td>
			<td>10034-99-8</td>
			<td></td>
		</tr>
		<tr>
			<td>Microcentrifuge Tube</td>
			<td>Corning</td>
			<td>430909</td>
			<td></td>
		</tr>
		<tr>
			<td>Negative Pressure Ventilation Control Option with Pressure Regulator for IPL-4</td>
			<td>Hugo Sachs Elektronik (HSE)</td>
			<td>73-4298</td>
			<td></td>
		</tr>
		<tr>
			<td>New Zeland rabbits</td>
			<td></td>
			<td></td>
			<td></td>
		</tr>
		<tr>
			<td>PISABENTAL (Pentobarbital sodium)</td>
			<td>PISA</td>
			<td>Q-7833-215</td>
			<td></td>
		</tr>
		<tr>
			<td>PLUGSYS Case, Type 603* 7</td>
			<td>Hugo Sachs Elektronik (HSE)</td>
			<td>73-0045</td>
			<td></td>
		</tr>
		<tr>
			<td>PLUGSYS TCM Time Counter Module</td>
			<td>Hugo Sachs Elektronik (HSE)</td>
			<td>73-1750</td>
			<td></td>
		</tr>
		<tr>
			<td>PLUGSYS Transducer Amplifier Module (TAM-A)</td>
			<td>Hugo Sachs Elektronik (HSE)</td>
			<td>73-0065</td>
			<td></td>
		</tr>
		<tr>
			<td>PLUGSYS Transducer Amplifier Module (TAM-D)</td>
			<td>Hugo Sachs Elektronik (HSE)</td>
			<td>73-1793</td>
			<td></td>
		</tr>
		<tr>
			<td>PLUGSYS VCM-4R Ventilation Control Module with Pressure Regulator</td>
			<td>Hugo Sachs Elektronik (HSE)</td>
			<td>73-1755</td>
			<td></td>
		</tr>
		<tr>
			<td>Potassium chloride, KCl.</td>
			<td>JT Baker</td>
			<td>3040-01</td>
			<td></td>
		</tr>
		<tr>
			<td>Potassium dihydrogen phosphate, KH2PO4</td>
			<td>JT Baker</td>
			<td>7778-77-0</td>
			<td></td>
		</tr>
		<tr>
			<td>PROCIN (Xylacine clorhydrate)</td>
			<td>PISA</td>
			<td>Q-7833-099</td>
			<td></td>
		</tr>
		<tr>
			<td>Pulmonary Artery Cannula for Rabbit with Basket, OD 4.6 mm</td>
			<td>Hugo Sachs Elektronik (HSE)</td>
			<td>73-4161</td>
			<td></td>
		</tr>
		<tr>
			<td>Scalpel knife</td>
			<td></td>
			<td></td>
			<td></td>
		</tr>
		<tr>
			<td>Serotonin 5-HT</td>
			<td></td>
			<td></td>
			<td></td>
		</tr>
		<tr>
			<td>Servo Controller for Perfusion (SCP</td>
			<td>Hugo Sachs Elektronik (HSE)</td>
			<td>73-2806</td>
			<td></td>
		</tr>
		<tr>
			<td>Snap Cap Microcentrifuge Tube</td>
			<td>Costar</td>
			<td>3620</td>
			<td>1.7 mL</td>
		</tr>
		<tr>
			<td>Sodium bicarbonate, NaHCO3</td>
			<td>sigma</td>
			<td>S6014</td>
			<td></td>
		</tr>
		<tr>
			<td>Sodium chloride, NaCl.</td>
			<td>sigma</td>
			<td>S9888</td>
			<td></td>
		</tr>
		<tr>
			<td>Surgical gloves No. 7 1/2</td>
			<td></td>
			<td></td>
			<td></td>
		</tr>
		<tr>
			<td>Surgical gloves No. 8</td>
			<td></td>
			<td></td>
			<td></td>
		</tr>
		<tr>
			<td>Taygon tubes</td>
			<td>Masterflex</td>
			<td></td>
			<td></td>
		</tr>
		<tr>
			<td>Tracheal Cannula for Rabbit, OD 5.0 mm</td>
			<td>Hugo Sachs Elektronik (HSE)</td>
			<td>73-4163</td>
			<td></td>
		</tr>
	</tbody>
</table>

isolated lung perfusion system in the rabbit model

The isolated lung perfusion system has been widely used in pulmonary research, contributing to elucidate the lungs&#39; inner workings, both micro and macroscopically. This technique is useful in the characterization of pulmonary physiology and pathology by measuring metabolic activities and respiratory functions, including interactions between circulatory substances and the effects of inhaled or perfused substances, as in drug testing. While in vitro methods involve the slicing and culturing of tissues, the isolated ex vivo lung perfusion system allows to work with a complete functional organ making possible the study of a continuous physiological function while recreating ventilation and perfusion. However, it should be noted that the effects of the absence of central innervation and lymphatic drainage still have to be fully assessed. This protocol aims to describe the assembly of the isolated lung apparatus, followed by the surgical extraction and cannulation of lungs and heart from experimental lab animals, as well as to display the perfusion technique and signal processing of data. The average viability of the isolated lung ranges between 5-8 h; during this period, the pulmonary capillary permeability increases, causing edema and lung injury. The functionality of preserved pulmonary tissue is measured by the capillary filtration coefficient (Kfc), used to determine the extent of pulmonary edema through time.

The isolated lung perfusion system allows organ manipulation for biopsy, sample collection from perfusion, and real-time data collection of physiological parameters. The isolated system can be used to test many hypotheses involving different functions and lung phenomena, from metabolic and enzymatic activity to edema formation and preservation periods for lung transplants.
Figure 1&#160;displays a diagram of the fully assembled isolated lung perfusion system along...

Watch this Scientific Journal Video about Isolated Lung Perfusion System in the Rabbit Model at JoVE.com

Isolated Lung Perfusion System in the Rabbit Model

The isolated rabbit lung preparation is a gold standard tool in pulmonary research. This publication aims to describe the technique as developed for the study of physiological and pathological mechanisms involved in airway reactivity, lung preservation, and preclinical research in lung transplantation and pulmonary edema.

The isolated lung perfusion system has been widely used in pulmonary research, contributing to elucidate the lungs&#39; inner workings, both micro and ...

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Medicine

Microsurgical Venous Pouch Arterial-Bifurcation Aneurysms in the Rabbit Model: Technical Aspects

For ruptured human cerebral aneurysms endovascular embolization has become an equivalent alternative to aneurysm clipping.1 However, large clinical trials ...

NADH Fluorescence Imaging of Isolated Biventricular Working Rabbit Hearts

Since its inception by Langendorff1, the isolated perfused heart remains a prominent tool for studying cardiac physiology2. However, it is not well-suited ...

Optimized System for Cerebral Perfusion Monitoring in the Rat Stroke Model of Intraluminal Middle Cerebral Artery Occlusion

The translational potential of pre-clinical stroke research depends on the accuracy of experimental modeling. Cerebral perfusion monitoring in animal ...

The Rabbit Blood-shunt Model for the Study of Acute and Late Sequelae of Subarachnoid Hemorrhage: Technical Aspects

Early brain injury and delayed cerebral vasospasm both contribute to unfavorable outcomes after subarachnoid hemorrhage (SAH). Reproducible and ...

Method of Isolated Ex Vivo Lung Perfusion in a Rat Model: Lessons Learned from Developing a Rat EVLP Program

Method of Isolated Ex Vivo Lung Perfusion in a Rat Model: Lessons Learned from Developing a Rat EVLP Program

The number of acceptable donor lungs available for lung transplantation is severely limited due to poor quality. Ex-Vivo Lung Perfusion (EVLP) has allowed ...

Isolated Hepatic Perfusion as a Treatment for Liver Metastases of Uveal Melanoma

Isolated hepatic perfusion (IHP) is a procedure where the liver is surgically isolated and perfused with a high concentration of the chemotherapeutic ...

Open Tracheostomy Gastric Acid Aspiration Murine Model of Acute Lung Injury Results in Maximal Acute Nonlethal Lung Injury

Acid pneumonitis is a major cause of sterile acute lung injury (ALI) in humans. Acid pneumonitis spans the clinical spectrum from asymptomatic to acute ...

Method of Direct Segmental Intra-hepatic Delivery Using a Rat Liver Hilar Clamp Model

Major hepatic surgery with inflow occlusion, and liver transplantation, necessitate a period of warm ischemia, and a period of reperfusion leading to ...

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 ...

Transthoracic Echocardiographic Examination in the Rabbit Model

Large animal models such as the rabbit are valuable for translational preclinical research. Rabbits have a similar cardiac electrophysiology compared to ...