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Magnin M, Gavet M, Ngo TT, Louzier V, Victoni T, Ayoub JY, Allaouchiche B, Bonnet-Garin JM, Junot S. A multimodal tissue perfusion measurement approach for the evaluation of the effect of pimobendan, an inodilator, in a porcine sepsis model. Microvasc Res 2024; 154:104687. [PMID: 38614155 DOI: 10.1016/j.mvr.2024.104687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Revised: 04/03/2024] [Accepted: 04/10/2024] [Indexed: 04/15/2024]
Abstract
Sepsis is associated with hypoperfusion and organ failure. The aims of the study were: 1) to assess the effect of pimobendan on macrocirculation and perfusion and 2) to describe a multimodal approach to the assessment of perfusion in sepsis and compare the evolution of the perfusion parameters. Eighteen anaesthetized female piglets were equipped for macrocirculation monitoring. Sepsis was induced by an infusion of Pseudomonas aeruginosa. After the occurrence of hypotension, animals were resuscitated. Nine pigs received pimobendan at the start of resuscitation maneuvers, the others received saline. Tissue perfusion was assessed using temperature gradients measured with infrared thermography (TG = core temperature - tarsus temperature), urethral perfusion index (uPI) derived from photoplethysmography and sublingual microcirculation (Sidestream dark field imaging device): De Backer score (DBs), proportion of perfused vessels (PPV), microvascular flow index (MFI) and heterogeneity index (HI). Arterial lactate and ScvO2 were also measured. Pimobendan did not improve tissue perfusion nor macrocirculation. It did not allow a reduction in the amount of noradrenaline and fluids administered. Sepsis was associated with tissue perfusion disorders: there were a significant decrease in uPI, PPV and ScvO2 and a significant rise in TG. TG could significantly predict an increase in lactate. Resuscitation was associated with a significant increase in uPI, DBs, MFI, lactate and ScvO2. There were fair correlations between the different perfusion parameters. In this model, pimobendan did not show any benefit. The multimodal approach allowed the detection of tissue perfusion alteration but only temperature gradients predicted the increase in lactatemia.
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Affiliation(s)
- Mathieu Magnin
- Université de Lyon, UR APCSe Agressions Pulmonaires et Circulatoires dans le Sepsis, VetAgro Sup, 1 avenue Bourgelat, F-69280 Marcy l'Etoile, France; Université de Lyon, Vetagro Sup, Unité de Physiologie, Pharmacodynamie et Thérapeutique, 1 avenue Bourgelat, F-69280 Marcy l'Etoile, France.
| | - Morgane Gavet
- Université de Lyon, VetAgro Sup, Service d'Anesthésie, 1 avenue Bourgelat, F-69280 Marcy l'Etoile, France.
| | - Thien-Tam Ngo
- Université de Lyon, UR APCSe Agressions Pulmonaires et Circulatoires dans le Sepsis, VetAgro Sup, 1 avenue Bourgelat, F-69280 Marcy l'Etoile, France; Université de Lyon, Vetagro Sup, Unité de Physiologie, Pharmacodynamie et Thérapeutique, 1 avenue Bourgelat, F-69280 Marcy l'Etoile, France
| | - Vanessa Louzier
- Université de Lyon, UR APCSe Agressions Pulmonaires et Circulatoires dans le Sepsis, VetAgro Sup, 1 avenue Bourgelat, F-69280 Marcy l'Etoile, France; Université de Lyon, Vetagro Sup, Unité de Physiologie, Pharmacodynamie et Thérapeutique, 1 avenue Bourgelat, F-69280 Marcy l'Etoile, France.
| | - Tatiana Victoni
- Université de Lyon, UR APCSe Agressions Pulmonaires et Circulatoires dans le Sepsis, VetAgro Sup, 1 avenue Bourgelat, F-69280 Marcy l'Etoile, France; Université de Lyon, Vetagro Sup, Unité de Physiologie, Pharmacodynamie et Thérapeutique, 1 avenue Bourgelat, F-69280 Marcy l'Etoile, France.
| | - Jean Yves Ayoub
- Université de Lyon, UR APCSe Agressions Pulmonaires et Circulatoires dans le Sepsis, VetAgro Sup, 1 avenue Bourgelat, F-69280 Marcy l'Etoile, France; Université de Lyon, Vetagro Sup, Unité de Physiologie, Pharmacodynamie et Thérapeutique, 1 avenue Bourgelat, F-69280 Marcy l'Etoile, France.
| | - Bernard Allaouchiche
- Université de Lyon, UR APCSe Agressions Pulmonaires et Circulatoires dans le Sepsis, VetAgro Sup, 1 avenue Bourgelat, F-69280 Marcy l'Etoile, France; Université de Lyon, Hospices Civils de Lyon, Centre Hospitalier Lyon Sud, Réanimation Médicale, 165 Chemin du Grand Revoyet, F-69310 Pierre-Bénite, France
| | - Jeanne-Marie Bonnet-Garin
- Université de Lyon, UR APCSe Agressions Pulmonaires et Circulatoires dans le Sepsis, VetAgro Sup, 1 avenue Bourgelat, F-69280 Marcy l'Etoile, France; Université de Lyon, Vetagro Sup, Unité de Physiologie, Pharmacodynamie et Thérapeutique, 1 avenue Bourgelat, F-69280 Marcy l'Etoile, France.
| | - Stéphane Junot
- Université de Lyon, UR APCSe Agressions Pulmonaires et Circulatoires dans le Sepsis, VetAgro Sup, 1 avenue Bourgelat, F-69280 Marcy l'Etoile, France; Université de Lyon, Vetagro Sup, Unité de Physiologie, Pharmacodynamie et Thérapeutique, 1 avenue Bourgelat, F-69280 Marcy l'Etoile, France; Université de Lyon, VetAgro Sup, Service d'Anesthésie, 1 avenue Bourgelat, F-69280 Marcy l'Etoile, France.
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Potier JFN, Louzier V. Evaluation of stress markers in horses during hippotherapy sessions in comparison to being ridden by beginners. Anim Welf 2023; 32:e10. [PMID: 38487430 PMCID: PMC10936384 DOI: 10.1017/awf.2023.6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 08/24/2022] [Accepted: 08/30/2022] [Indexed: 02/03/2023]
Abstract
Hippotherapy has been used for decades and its benefits to human patients have largely been proven, whether being applied to those with physical or mental disabilities. There have been a plethora of animal welfare studies recently, pertaining especially to ridden horses. This study aimed to investigate stress markers in horses during hippotherapy sessions to address the ethical considerations raised by using horses for therapy. A ridden stress ethogram was established and validated specifically for this study via subjective observation and video recording of a ridden session involving intermediate-level riders. The experiment entailed eight healthy horses undergoing two ridden sessions on separate days, one with disabled riders and one with beginners. Several parameters associated with physiological responses to stress were evaluated at rest, such as heart rate, plasma adrenocorticotropic hormone [ACTH], serum and salivary cortisol. These parameters as well as the behavioural stress score from the ethogram scale were measured during both sessions. No significant differences were found between heart rate, plasma ACTH, and stress scores. Serum and salivary cortisol were significantly lower during the hippotherapy session than during the session with beginners. The current study found no evidence of compromised welfare when horses were used as a therapeutic aid during hippotherapy sessions compared to their usual ridden activity. Although these results indicate that hippotherapy may be ethically justified as it benefits humans without causing harm to the horses, the present study was small, and the results should be interpreted with caution.
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Affiliation(s)
| | - Vanessa Louzier
- APCSe Agressions Pulmonaires et Circulatoires dans le Sepsis, Université de Lyon, VetAgro Sup – Campus Vétérinaire de Lyon, 1 Avenue Bourgelat, 69280, Marcy-l’Étoile, France
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Davigo A, Passot G, Vassal O, Bost M, Tavernier C, Decullier E, Bakrin N, Alyami M, Bonnet JM, Louzier V, Paquet C, Allaouchiche B, Glehen O, Kepenekian V. PIPAC versus HIPEC: cisplatin spatial distribution and diffusion in a swine model. Int J Hyperthermia 2020; 37:144-150. [PMID: 32003300 DOI: 10.1080/02656736.2019.1704891] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Purpose: Pressurized intraperitoneal aerosol chemotherapy (PIPAC) is a novel approach for delivering intraperitoneal chemotherapy and offers perspective in the treatment of peritoneal carcinomatosis. Concept is based on a 12 mmHg capnoperitoneum loaded with drug changed in microdoplets. It was postulated to guarantee a more homogeneous drug distribution and tissular uptake than hyperthermic intraperitoneal chemotherapy (HIPEC). The aim of this study was to compare cisplatin peritoneal distribution and pharmacokinetic between HIPEC and PIPAC procedures in a healthy swine model.Methods: Two groups of eight pigs underwent either HIPEC with cisplatin (70 mg/m2) at 43 °C for 60 min, or PIPAC with cisplatin (7.5 mg/m2) for 30 min. Postoperatively, peritoneal areas were biopsied allowing peritoneal cavity cartography. Tissular and plasmatic cisplatin concentrations were analyzed.Results: Cisplatin distribution was heterogeneous in both the groups with higher concentrations obtained closed to the delivery sites. Median total platinum peritoneal concentration by pig was higher in the HIPEC group than in the PIPAC group (18.0 μg/g versus 4.3 μg/g, p < .001) but the yield was 2.2 times better with PIPAC. Platinum concentrations were higher in the HIPEC group in all stations. At each time-point, cisplatin plasmatic concentrations were higher in the HIPEC group (p < .001) but beneath the toxicity threshold.Conclusions: With doses used in clinical practice, HIPEC guaranteed a higher cisplatin peritoneal uptake than PIPAC in this swine model. Spatial drug distribution was heterogeneous with both technics, with hotspots closed to the drug delivery sites. Nevertheless, considering the dose ratio, IP drug uptake yield was better with PIPAC.
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Affiliation(s)
- Axel Davigo
- Department of Digestive Surgery, Hospices Civils de Lyon, Lyon-Sud University Hospital, Lyon, France.,EMR 3738, Lyon 1 University, Lyon, France
| | - Guillaume Passot
- Department of Digestive Surgery, Hospices Civils de Lyon, Lyon-Sud University Hospital, Lyon, France.,EMR 3738, Lyon 1 University, Lyon, France
| | - Olivia Vassal
- Department of Intensive Care, Hospices Civils de Lyon, Lyon-Sud University Hospital, Lyon, France
| | - Muriel Bost
- Department of Biology and Anatomopathology, Laboratory of Trace Element and Toxic Metal Analysis, Hospices Civils de Lyon, Lyon, France
| | - Clément Tavernier
- Department of Digestive Surgery, Hospices Civils de Lyon, Lyon-Sud University Hospital, Lyon, France.,EMR 3738, Lyon 1 University, Lyon, France
| | | | - Naoual Bakrin
- Department of Digestive Surgery, Hospices Civils de Lyon, Lyon-Sud University Hospital, Lyon, France.,EMR 3738, Lyon 1 University, Lyon, France
| | - Mohammad Alyami
- Department of Digestive Surgery, Hospices Civils de Lyon, Lyon-Sud University Hospital, Lyon, France.,EMR 3738, Lyon 1 University, Lyon, France.,King Faisal Specialist Hospital & Research Center, Riyadh, Saudi Arabia
| | | | - Vanessa Louzier
- Université de Lyon, VetAgro Sup, APCSe, Marcy l'Étoile, France
| | | | - Bernard Allaouchiche
- Department of Intensive Care, Hospices Civils de Lyon, Lyon-Sud University Hospital, Lyon, France.,Université de Lyon, VetAgro Sup, APCSe, Marcy l'Étoile, France
| | - Olivier Glehen
- Department of Digestive Surgery, Hospices Civils de Lyon, Lyon-Sud University Hospital, Lyon, France.,EMR 3738, Lyon 1 University, Lyon, France
| | - Vahan Kepenekian
- Department of Digestive Surgery, Hospices Civils de Lyon, Lyon-Sud University Hospital, Lyon, France.,EMR 3738, Lyon 1 University, Lyon, France
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Magnin M, Junot S, Cardinali M, Ayoub JY, Paquet C, Louzier V, Garin JMB, Allaouchiche B. Use of infrared thermography to detect early alterations of peripheral perfusion: evaluation in a porcine model. Biomed Opt Express 2020; 11:2431-2446. [PMID: 32499935 PMCID: PMC7249846 DOI: 10.1364/boe.387481] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 03/10/2020] [Accepted: 03/18/2020] [Indexed: 05/08/2023]
Abstract
This study aimed to evaluate the variations of infrared thermography according to rapid hemodynamic changes, by measuring the peripheral skin temperature in a porcine model. Eight healthy piglets were anesthetized and exposed to different levels of arterial pressure. Thermography was performed on the left forelimb to measure carpus and elbow skin temperature and their associated gradient with the core temperature. Changes in skin temperature in response to variations of blood pressure were observed. A negative correlation between arterial pressure and temperature gradients between peripheral and core temperature and a negative correlation between cardiac index and these temperature gradients were observed. Thermography may serve as a tool to detect early changes in peripheral perfusion.
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Affiliation(s)
- Mathieu Magnin
- Université de Lyon, APCSe Agressions Pulmonaires et Circulatoires dans le Sepsis, VetAgro Sup, F-69280 Marcy l’Etoile, France
- Université de Lyon, Vetagro Sup, Campus Vétérinaire de Lyon, Unité de Physiologie, Pharmacodynamie et Thérapeutique, F-69280 Marcy l’Etoile, France
| | - Stephane Junot
- Université de Lyon, APCSe Agressions Pulmonaires et Circulatoires dans le Sepsis, VetAgro Sup, F-69280 Marcy l’Etoile, France
- Université de Lyon, VetAgro Sup, Campus Vétérinaire de Lyon, Anesthésiologie, F-69280 Marcy l’Etoile, France
| | - Martina Cardinali
- Université de Lyon, APCSe Agressions Pulmonaires et Circulatoires dans le Sepsis, VetAgro Sup, F-69280 Marcy l’Etoile, France
- Université de Lyon, VetAgro Sup, Campus Vétérinaire de Lyon, Anesthésiologie, F-69280 Marcy l’Etoile, France
| | - Jean Yves Ayoub
- Université de Lyon, APCSe Agressions Pulmonaires et Circulatoires dans le Sepsis, VetAgro Sup, F-69280 Marcy l’Etoile, France
- Université de Lyon, Vetagro Sup, Campus Vétérinaire de Lyon, Unité de Physiologie, Pharmacodynamie et Thérapeutique, F-69280 Marcy l’Etoile, France
| | - Christian Paquet
- Université de Lyon, APCSe Agressions Pulmonaires et Circulatoires dans le Sepsis, VetAgro Sup, F-69280 Marcy l’Etoile, France
- Université de Lyon, Vetagro Sup, Campus Vétérinaire de Lyon, Unité de Physiologie, Pharmacodynamie et Thérapeutique, F-69280 Marcy l’Etoile, France
| | - Vanessa Louzier
- Université de Lyon, APCSe Agressions Pulmonaires et Circulatoires dans le Sepsis, VetAgro Sup, F-69280 Marcy l’Etoile, France
- Université de Lyon, Vetagro Sup, Campus Vétérinaire de Lyon, Unité de Physiologie, Pharmacodynamie et Thérapeutique, F-69280 Marcy l’Etoile, France
| | - Jeanne Marie Bonnet Garin
- Université de Lyon, APCSe Agressions Pulmonaires et Circulatoires dans le Sepsis, VetAgro Sup, F-69280 Marcy l’Etoile, France
- Université de Lyon, Vetagro Sup, Campus Vétérinaire de Lyon, Unité de Physiologie, Pharmacodynamie et Thérapeutique, F-69280 Marcy l’Etoile, France
| | - Bernard Allaouchiche
- Université de Lyon, APCSe Agressions Pulmonaires et Circulatoires dans le Sepsis, VetAgro Sup, F-69280 Marcy l’Etoile, France
- Université de Lyon, Hospices Civils de Lyon, Centre Hospitalier Lyon Sud, Réanimation Médicale, Unité APCSE, Pierre-Bénite, France
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Tavernier C, Passot G, Vassal O, Allaouchiche B, Decullier E, Bakrin N, Alyami M, Davigo A, Bonnet JM, Louzier V, Paquet C, Glehen O, Kepenekian V. Pressurized intraperitoneal aerosol chemotherapy (PIPAC) might increase the risk of anastomotic leakage compared to HIPEC: an experimental study. Surg Endosc 2019; 34:2939-2946. [PMID: 31456025 DOI: 10.1007/s00464-019-07076-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Accepted: 08/19/2019] [Indexed: 01/06/2023]
Abstract
BACKGROUND Pressurized intraperitoneal aerosol chemotherapy (PIPAC) and hyperthermic intraperitoneal chemotherapy (HIPEC) are technics proposed to treat patients with peritoneal carcinomatosis, in different settings. There is some concern about an over-risk of anastomotic leakage (AL) with PIPAC jeopardizing a combination with cytoreductive surgery. This study used a healthy swine model to compare the postoperative AL rate between PIPAC and HIPEC with digestive resection and to analyze macrocirculation and microcirculation parameters. METHODS Segmental colonic resection with a handsewn anastomosis was performed on 16 healthy pigs; 8 pigs had a PIPAC procedure with 7.5 mg/m2 cisplatin (PIPAC group), and 8 pigs had a closed HIPEC procedure with 70 mg/m2 cisplatin and 42 °C as the target intraperitoneal temperature (HIPEC group). Pigs were kept alive for 8 days, then sacrificed and autopsied to look for AL, which was defined as local abscess or digestive fluid leakage when pressure was applied to the anastomosis. Food intake, weight, and core temperature were monitored postoperatively. Macrocirculation (heart rate, systolic blood pressure) and microcirculation parameters (percentage of perfused vessels, perfused vessels density, DeBacker score) were evaluated intraoperatively at five timepoints. Results were compared between pigs with AL and those without. RESULTS The HIPEC group had no AL, but 3 of 8 pigs (37.5%) had AL in the PIPAC group (p = 0.20). Heart rate and core temperature showed perioperative increases in the HIPEC group. Intraoperatively, heart rate was higher in the HIPEC group at the two last timepoints (123 vs. 93 bpm, p = 0.031, and 110 vs. 85 bpm, p = 0.010, at timepoints 3 and 4, respectively). Other macrocirculatory and microcirculatory parameters showed no significant differences. CONCLUSION In this healthy swine model, PIPAC might have increased AL incidence compared to HIPEC. This potential over-risk did not seem to be related to changes in the microcirculation. PIPAC should probably not be used with digestive resection and should be avoided in cases of perioperative serosal injury.
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Affiliation(s)
- Clément Tavernier
- Department of Digestive Surgery, Lyon-Sud University Hospital, Lyon, France
- EMR 3738, Lyon 1 University, Lyon, France
| | - Guillaume Passot
- Department of Digestive Surgery, Lyon-Sud University Hospital, Lyon, France
- EMR 3738, Lyon 1 University, Lyon, France
| | - Oliva Vassal
- Department of Intensive Care, Lyon-Sud University Hospital, Lyon, France
| | - Bernard Allaouchiche
- Department of Intensive Care, Lyon-Sud University Hospital, Lyon, France
- University of Lyon, VetAgro Sup, APCSe, Marcy l'Étoile, France
| | | | - Naoual Bakrin
- Department of Digestive Surgery, Lyon-Sud University Hospital, Lyon, France
- EMR 3738, Lyon 1 University, Lyon, France
| | - Mohammad Alyami
- Department of Digestive Surgery, Lyon-Sud University Hospital, Lyon, France
- EMR 3738, Lyon 1 University, Lyon, France
| | - Axel Davigo
- Department of Digestive Surgery, Lyon-Sud University Hospital, Lyon, France
- EMR 3738, Lyon 1 University, Lyon, France
| | | | - Vanessa Louzier
- University of Lyon, VetAgro Sup, APCSe, Marcy l'Étoile, France
| | | | - Olivier Glehen
- Department of Digestive Surgery, Lyon-Sud University Hospital, Lyon, France
- EMR 3738, Lyon 1 University, Lyon, France
| | - Vahan Kepenekian
- Department of Digestive Surgery, Lyon-Sud University Hospital, Lyon, France.
- EMR 3738, Lyon 1 University, Lyon, France.
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Baudin F, Pouzot-Nevoret C, Louzier V, Goy-Thollot I, Barthélemy A, Junot S, Bonnet-Garin JM, Allaouchiche B. Animal ICU… Why not also use the existing veterinary ICUs? Ann Intensive Care 2019; 9:93. [PMID: 31420772 PMCID: PMC6702538 DOI: 10.1186/s13613-019-0568-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Accepted: 08/08/2019] [Indexed: 11/28/2022] Open
Affiliation(s)
- Florent Baudin
- Service de réanimation pédiatrique, Hôpital Femme Mère Enfant, Hospices Civils de Lyon, 59 Bd Pinel, 69500, Bron, France. .,Agressions Pulmonaires et Circulatoires dans le Sepsis (APCSe), VetAgro Sup, UPSP 2016.A101, Université de Lyon, 69280, Marcy l'étoile, France.
| | - Céline Pouzot-Nevoret
- Agressions Pulmonaires et Circulatoires dans le Sepsis (APCSe), VetAgro Sup, UPSP 2016.A101, Université de Lyon, 69280, Marcy l'étoile, France.,Intensive Care Unit (SIAMU), VetAgro Sup, Université de Lyon, 69280, Marcy l'Etoile, France
| | - Vanessa Louzier
- Agressions Pulmonaires et Circulatoires dans le Sepsis (APCSe), VetAgro Sup, UPSP 2016.A101, Université de Lyon, 69280, Marcy l'étoile, France
| | - Isabelle Goy-Thollot
- Agressions Pulmonaires et Circulatoires dans le Sepsis (APCSe), VetAgro Sup, UPSP 2016.A101, Université de Lyon, 69280, Marcy l'étoile, France.,Intensive Care Unit (SIAMU), VetAgro Sup, Université de Lyon, 69280, Marcy l'Etoile, France
| | - Anthony Barthélemy
- Agressions Pulmonaires et Circulatoires dans le Sepsis (APCSe), VetAgro Sup, UPSP 2016.A101, Université de Lyon, 69280, Marcy l'étoile, France.,Intensive Care Unit (SIAMU), VetAgro Sup, Université de Lyon, 69280, Marcy l'Etoile, France
| | - Stéphane Junot
- Agressions Pulmonaires et Circulatoires dans le Sepsis (APCSe), VetAgro Sup, UPSP 2016.A101, Université de Lyon, 69280, Marcy l'étoile, France
| | - Jeanne-Marie Bonnet-Garin
- Agressions Pulmonaires et Circulatoires dans le Sepsis (APCSe), VetAgro Sup, UPSP 2016.A101, Université de Lyon, 69280, Marcy l'étoile, France
| | - Bernard Allaouchiche
- Agressions Pulmonaires et Circulatoires dans le Sepsis (APCSe), VetAgro Sup, UPSP 2016.A101, Université de Lyon, 69280, Marcy l'étoile, France.,Département d'anesthésie et de reanimation, Hospices Civils de Lyon, Lyon Sud Teaching Hospital, 69495, Pierre-Bénite, France
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Millon A, Sigovan M, Boussel L, Mathevet JL, Louzier V, Paquet C, Geloen A, Provost N, Majd Z, Patsouris D, Serusclat A, Canet-Soulas E. Low WSS Induces Intimal Thickening, while Large WSS Variation and Inflammation Induce Medial Thinning, in an Animal Model of Atherosclerosis. PLoS One 2015; 10:e0141880. [PMID: 26575029 PMCID: PMC4648591 DOI: 10.1371/journal.pone.0141880] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2015] [Accepted: 10/14/2015] [Indexed: 12/14/2022] Open
Abstract
OBJECTIVE Atherosclerotic plaque development in the arterial wall is the result of complex interaction between the wall's endothelial layer and blood hemodynamics. However, the interaction between hemodynamic parameters and inflammation in plaque evolution is not yet fully understood. The aim of the present study was to investigate the relation between wall shear stress (WSS) and vessel wall inflammation during atherosclerotic plaque development in a minipig model of carotid stenosis. METHODS A surgical procedure was performed to create left common carotid artery stenosis by placement of a perivascular cuff in minipigs under atherogenic diet. Animals were followed up on 3T MRI, 1 week after surgery and 3, 6, and 8 months after initiation of the diet. Computational fluid dynamics simulation estimated WSS distribution for the first imaging point. Vascular geometries were co-registered for direct comparison of plaque development and features (Gadolinium- and USPIO-Contrast Enhanced MRI, for permeability and inflammation respectively) with the initial WSS. Histological analysis was performed and sections were matched to MR images, based on spatial landmarks. RESULTS Vessel wall thickening, permeability and inflammation were observed distally from the stenosis. They were eccentric and facing regions of normal wall thickness. Histological analysis confirmed eccentric plaque formation with lipid infiltration, intimal thickening and medial degradation. High phagocytic activity in the stenosis region was co-localized with high WSS, corresponding to intense medial degradation observed on histology samples. CONCLUSION Lower WSS promotes atherosclerotic plaque development distal to an induced stenosis. Vascular and perivascular inflammation locations were predominant in the high WSS stenosis segment, where medial thinning was the major consequence.
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Affiliation(s)
- Antoine Millon
- Lyon-1 University, CREATIS Laboratory, Lyon, France
- Hospices Civils de Lyon, Lyon, France
- * E-mail:
| | | | - Loic Boussel
- Lyon-1 University, CREATIS Laboratory, Lyon, France
- Hospices Civils de Lyon, Lyon, France
| | | | | | | | - Alain Geloen
- Lyon-1 University, CARMEN Laboratory, INSERM U1060, Lyon, France
| | | | | | - David Patsouris
- Lyon-1 University, CARMEN Laboratory, INSERM U1060, Lyon, France
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Millon A, Sigovan M, Boussel L, Mathevet J, Louzier V, Paquet C, Géloen A, Provost N, Majd Z, Patsouris D, Serusclat A, Canet Soulas E. Lower wss drives intimal thickening, but high wss gradients and inflammation are responsible of stenosis medial thinning. Atherosclerosis 2014. [DOI: 10.1016/j.atherosclerosis.2014.05.176] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Restagno D, Bonnet JM, Kodjo A, Venet F, Paquet C, Freyburger L, Louzier V. Mice survival in a two-hit model of sepsis depends on intratracheal P. aeruginosa bacterial load. Crit Care 2014. [PMCID: PMC4273890 DOI: 10.1186/cc14062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Restagno D, Bonnet JM, Mouchain K, Brune P, Paquet C, Delale T, Louzier V. Characterization of a murine model of septic cachexia. Crit Care 2014. [PMCID: PMC4273889 DOI: 10.1186/cc14061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Larifla L, Déprez I, Pham I, Rideau D, Louzier V, Adam M, Eloit M, Foucan L, Adnot S, Teiger E. Inhibition of vascular smooth muscle cell proliferation and migration in vitro and neointimal hyperplasia in vivo by adenoviral-mediated atrial natriuretic peptide delivery. J Gene Med 2012; 14:459-67. [DOI: 10.1002/jgm.2639] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Affiliation(s)
- Laurent Larifla
- Groupe Epidémiologie Clinique et Médecine; Université des Antilles et de la Guyane; Guadeloupe; France
| | - Isabelle Déprez
- Département de Physiologie et INSERM U492; Faculté de médecine, CHU Henri-Mondor; Créteil; France
| | - Isabelle Pham
- Département de Physiologie et INSERM U492; Faculté de médecine, CHU Henri-Mondor; Créteil; France
| | - Dominique Rideau
- Département de Physiologie et INSERM U492; Faculté de médecine, CHU Henri-Mondor; Créteil; France
| | - Vanessa Louzier
- Département de Physiologie et INSERM U492; Faculté de médecine, CHU Henri-Mondor; Créteil; France
| | - Micheline Adam
- URA INRA de Génétique Moléculaire et Cellulaire, Génétique Virale; Ecole Nationale Vétérinaire d'Alfort; Maisons-Alfort; France
| | - Marc Eloit
- URA INRA de Génétique Moléculaire et Cellulaire, Génétique Virale; Ecole Nationale Vétérinaire d'Alfort; Maisons-Alfort; France
| | - Lydia Foucan
- Groupe Epidémiologie Clinique et Médecine; Université des Antilles et de la Guyane; Guadeloupe; France
| | - Serge Adnot
- Département de Physiologie et INSERM U492; Faculté de médecine, CHU Henri-Mondor; Créteil; France
| | - Emmanuel Teiger
- Département de Physiologie et INSERM U492; Faculté de médecine, CHU Henri-Mondor; Créteil; France
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Tebot I, Bonnet JM, Paquet C, Ayoub JY, Da Silva SM, Louzier V, Cirio A. The effect of intravenous insulin infusion on renal blood flow in conscious sheep is partially mediated by nitric oxide but not by prostaglandins1. J Anim Sci 2012; 90:1192-200. [DOI: 10.2527/jas.2011-4129] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Delisle JC, Martignat L, Dubreil L, Saï P, Bach JM, Louzier V, Bösch S. Pdx-1 or Pdx-1-VP16 protein transduction induces beta-cell gene expression in liver-stem WB cells. BMC Res Notes 2009; 2:3. [PMID: 19134185 PMCID: PMC2637887 DOI: 10.1186/1756-0500-2-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2008] [Accepted: 01/09/2009] [Indexed: 12/21/2022] Open
Abstract
Background Pancreatic duodenal homeobox-1 (Pdx-1) or Pdx-1-VP16 gene transfer has been shown to induce in vitro rat liver-stem WB cell conversion into pancreatic endocrine precursor cells. High glucose conditions were necessary for further differentiation into functional insulin-producing cells. Pdx-1 has the ability to permeate different cell types due to an inherent protein transduction domain (PTD). In this study, we evaluated liver-to-pancreas conversion of WB cells following Pdx-1 or Pdx-1-VP16 protein transduction. Findings WB cells were grown in high glucose medium containing Pdx-1 or Pdx-1-VP16 recombinant proteins for two weeks. β-like cell commitment was analysed by RT-PCR of pancreatic endocrine genes. We found that WB cells in high glucose culture spontaneously express pancreatic endocrine genes (Pdx-1, Ngn3, Nkx2.2, Kir6.2). Their further differentiation into β-like cells expressing genes related to endocrine pancreas development (Ngn3, NeuroD, Pax4, Nkx2.2, Nkx6.1, Pdx-1) and β-cell function (Glut-2, Kir6.2, insulin) was achieved only in the presence of Pdx-1(-VP16) protein. Conclusion These results demonstrate that Pdx-1(-VP16) protein transduction is instrumental for in vitro liver-to-pancreas conversion and is an alternative to gene therapy for β-cell engineering for diabetes cell therapy.
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Delisle JC, Martignat L, Bach JM, Bösch S, Louzier V. Bipotential mouse embryonic liver (BMEL) cells spontaneously express Pdx1 and Ngn3 but do not undergo further pancreatic differentiation upon Hes1 down-regulation. BMC Res Notes 2008; 1:136. [PMID: 19108739 PMCID: PMC2649931 DOI: 10.1186/1756-0500-1-136] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2008] [Accepted: 12/24/2008] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Liver-to-pancreas conversion offers new possibilities for beta-cell engineering for type 1 diabetes therapy. Among conceivable sources of liver cells, we focused on BMEL cells. These untransformed mouse embryonic liver cells have been reproducibly isolated from different inbred mice strains and have the potential to differentiate into hepatocytes and cholangiocytes in vitro and in vivo. FINDINGS Strikingly, we find here that adherent BMEL cells display functional similarities with multipotent pancreatic precursor cells, namely Pdx1 and Ngn3 expression, and further express Hnf6 in floating aggregate culture. Hes1, a direct repressor of Ngn3 and pancreatic endocrine commitment, is expressed in adherent BMEL cells and decreases with time in aggregate culture. However, Hes1 decrease fails to initiate activation of late-stage pancreatic endocrine transcription factors. CONCLUSION Here we report that BMEL cells present features of pancreatic endocrine progenitor cells. In the field of diabetes research, BMEL cells are of potential interest for the study of inductive signals critical for in vitro beta-cell maturation in-liver-to-pancreas conversion.
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Louzier V, Raoul W, Leroux A, Branellec D, Caillaud JM, Many H, Levame M, Delclaux C, Adnot S, Maitre B. Adenovirus-mediated fibroblast growth factor 1 expression in the lung induces epithelial cell proliferation: consequences to hyperoxic lung injury in rats. Hum Gene Ther 2005; 15:793-804. [PMID: 15319036 DOI: 10.1089/1043034041648390] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
High concentrations of oxygen can induce pulmonary toxicity and cause injury to alveolar epithelial and endothelial cells. The present study was performed to determine whether the potent epithelial and endothelial fibroblast growth factor 1 (FGF-1) protected against hyperoxia-induced lung injury. Recombinant adenovirus carrying the gene encoding human secreted FGF-1 (Ad. FGF1) increased the proliferation of lung epithelial cells in vitro. Ad.FGF1 or control vector with an empty expression cassette (Ad.V152) was administered intratracheally to Wistar rats. With Ad.FGF1 (10(9), 5 x 10(9), 10(10), or 5 x 10(10) viral particles [VP]), FGF-1 protein was found in bronchoalveolar lavage fluid 4 days postinfection at levels proportional to the viral dose and was detected in plasma after doses of 10(10) VP or more were administered. Histological examination of the lungs showed intense proliferation and apoptosis of alveolar and bronchial epithelial cells, with few inflammatory cells. The alveolar architecture returned to normal within 17 days. Rats pretreated with Ad.FGF1 (10(9) or 5 x 10(9) VP) 2 days before exposure to hyperoxia (95% O2) survived, whereas rats pretreated with Ad.V152 died within 3 days. In conclusion, adenovirus-mediated FGF-1 overexpression in the lungs causes epithelial cell proliferation and has beneficial effects in hyperoxic lung injury.
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Affiliation(s)
- Vanessa Louzier
- Physiology Department, National Institute for Health and Medical Research (INSERM) Unit 492, Henri Mondor Teaching Hospital, AP-HP, 94010 Créteil, France
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Louzier V, Raffestin B, Leroux A, Branellec D, Caillaud JM, Levame M, Eddahibi S, Adnot S. Role of VEGF-B in the lung during development of chronic hypoxic pulmonary hypertension. Am J Physiol Lung Cell Mol Physiol 2003; 284:L926-37. [PMID: 12547729 DOI: 10.1152/ajplung.00247.2002] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Angiogenic factors exert protective effects on the lung. To investigate the effect of VEGF-B, a factor coexpressed in the lung with VEGF-A, we assessed chronic hypoxic pulmonary hypertension in VEGF-B knockout mice (VEGF-B-/-) and in rats with lung overexpression of VEGF-B induced by adenovirus transfer. No significant difference in pulmonary hemodynamics, right ventricular hypertrophy, distal vessel muscularization, or vascular density was found between VEGF-B-/- and control mice after 3 wk of hypoxia. When overexpressed, VEGF-B(167) or VEGF-B(186) had protective effects similar to those of human VEGF-A(165). Lung endothelial nitric oxide synthase (eNOS) expression was increased by 5 days of hypoxia or VEGF-A adenovirus vector (Ad.VEGF-A) overexpression, whereas VEGF-B(167) or VEGF-B(186) had no effect. With hypoxia or normoxia, the wet-to-dry lung weight ratio was increased 5 days after Ad.VEGF-A administration compared with control (Ad.nul), Ad.VEGF-B(167), or Ad.VEGF-B(186). Endogenous VEGF-B does not counteract the development of hypoxic pulmonary hypertension. However, when overexpressed in the lung, VEGF-B can be as potent as VEGF-A in attenuating pulmonary hypertension, although it has no effect on eNOS expression or vascular permeability.
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Affiliation(s)
- Vanessa Louzier
- Département de Physiologie, Institut National de la Santé et de La Recherche Médicale Unité 492, Hôpital Henri Mondor, Assistance Publique-Hôpitaux de Paris, 94010 Créteil, France
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Louzier V, Eddahibi S, Raffestin B, Déprez I, Adam M, Levame M, Eloit M, Adnot S. Adenovirus-mediated atrial natriuretic protein expression in the lung protects rats from hypoxia-induced pulmonary hypertension. Hum Gene Ther 2001; 12:503-13. [PMID: 11268283 DOI: 10.1089/104303401300042401] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Endogenous as well as exogenous atrial natriuretic peptide (ANP) attenuates the development of chronic hypoxic pulmonary hypertension (CHPH) in rats. We built a recombinant adenovirus type 5 containing ANP cDNA under the control of the Rous sarcoma virus long terminal repeat (Ad.ANP). The efficiency of this vector in delivering the ANP gene was first examined in rat primary cultures of pulmonary vessel smooth muscle cells (SMCs) in comparison with Ad.beta GAL. Conditioned medium collected from Ad.ANP-infected cells (1000 TCID(50)/cell) contained 5 x 10(9) M immunoreactive ANP and elicited relaxation of isolated rat pulmonary arteries preconstricted with phenylepinephrine. To examine the effects of adenovirus-mediated ANP expression in the CHPH rat lung, Ad.ANP or Ad.beta GAL was administered via the tracheal route. Immunoreactive ANP was detected in bronchoalveolar fluid as early as 4 days and until 10-17 days after Ad.ANP administration (5 x 10(8) TCID(50)). Lung ANP immunostaining was mainly localized in bronchial and alveolar epithelial cells. As compared with Ad.beta GAL-treated controls, rats given Ad.ANP (5 x 10(8) TCID(50)) on the day before a 2-week exposure to hypoxia (10% O(2)) had lower values for pulmonary artery pressure (32.1 +/- 1.93 vs. 35.5 +/- 2 mmHg, p < 0.01) and Fulton's index (0.52 +/- 0.089 vs. 0.67 +/- 0.12, p < 0.001) and less severe right ventricular hypertrophy and distal vessel muscularization. These results suggest that induction of ANP expression in the lung may hold promise in the treatment of pulmonary hypertension.
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Affiliation(s)
- V Louzier
- INSERM U492 and Département de Physiologie, Hôpital Henri Mondor, AP-HP, 94010 Créteil, France
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Partovian C, Adnot S, Raffestin B, Louzier V, Levame M, Mavier IM, Lemarchand P, Eddahibi S. Adenovirus-mediated lung vascular endothelial growth factor overexpression protects against hypoxic pulmonary hypertension in rats. Am J Respir Cell Mol Biol 2000; 23:762-71. [PMID: 11104729 DOI: 10.1165/ajrcmb.23.6.4106] [Citation(s) in RCA: 130] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Chronic hypoxic pulmonary hypertension (PH) is associated with vasoconstriction and structural remodeling of pulmonary vessels including narrowing of the arterial lumen and loss of distal functional arteries. To test whether lung overexpression of the angiogenic factor vascular endothelial growth factor (VEGF) is beneficial in hypoxic PH, recombinant adenovirus encoding the human VEGF 165 gene under the control of a cytomegalovirus promoter (Ad. VEGF) or control vector containing no gene in the expression cassette (Ad.Null) was administered intratracheally to rats. With Ad. VEGF (10(8) plaque-forming units [pfu]), VEGF protein was present in bronchoalveolar lavage fluid as early as 2 d and until 17 d after gene transfer, but was not detected in serum. Only small patchy areas of mononuclear cells without cell damage, edema, or hemorrhage were observed on lung histology with no significant change in lung permeability. In rats pretreated with Ad.VEGF (10(8) pfu) 2 d before a 2-wk exposure to hypoxia (10% O(2)), lower values versus Ad. Null-pretreated controls were found for pulmonary artery pressure (25 +/- 1 versus 30 +/- 2 mm Hg, P < 0.05), right ventricular over left ventricular-plus-septum weight (0.37 +/- 0.01 versus 0.47 +/- 0. 02, P < 0.001), normalized wall thickness of 50- to 200-microm vessels (P < 0.001), and muscularization of distal vessels (P < 0. 001). Pretreatment with Ad.VEGF (10(8) pfu) increased endothelial nitric oxide synthase activity in lung tissue and partially restored endothelium-dependent vasodilation in isolated lungs from chronically hypoxic rats, as assessed by improvement of ionophore A23187-induced vasodilation and attenuation of endothelin-1 (300 pmol)-induced vasoconstriction, an effect abolished in the presence of nitro-L-arginine methylester. We conclude that adenoviral-mediated VEGF overexpression in the lungs attenuates development of hypoxic PH, in part by protecting endothelium-dependent function.
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MESH Headings
- 15-Hydroxy-11 alpha,9 alpha-(epoxymethano)prosta-5,13-dienoic Acid/pharmacology
- Adenoviridae/genetics
- Animals
- Bronchoalveolar Lavage Fluid/chemistry
- Calcimycin/pharmacology
- Capillary Permeability/drug effects
- DNA, Recombinant/administration & dosage
- DNA, Recombinant/genetics
- DNA, Recombinant/metabolism
- Dose-Response Relationship, Drug
- Endothelial Growth Factors/genetics
- Endothelial Growth Factors/metabolism
- Endothelin-1/pharmacology
- Gene Expression Regulation
- Gene Transfer, Horizontal
- Humans
- Hypertension, Pulmonary/genetics
- Hypertension, Pulmonary/metabolism
- Hypertension, Pulmonary/prevention & control
- Hypoxia/physiopathology
- In Vitro Techniques
- Ionophores/pharmacology
- Lung/drug effects
- Lung/metabolism
- Lung/physiopathology
- Lymphokines/genetics
- Lymphokines/metabolism
- Nitric Oxide Synthase/drug effects
- Nitric Oxide Synthase/metabolism
- Nitric Oxide Synthase Type III
- Rats
- Rats, Wistar
- Time Factors
- Vascular Endothelial Growth Factor A
- Vascular Endothelial Growth Factors
- Vasodilation/drug effects
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Affiliation(s)
- C Partovian
- INSERM U492, Département de Physiologie et Service de Pharmacologie Clinique, Hôpital Henri Mondor, Créteil; Département de Physiologie, Hôpital Ambroise Paré, Boulogne, France
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