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Banchi P, Bertolotti L, Spanoghe L, Ali Hassan H, Lannoo J, Domain G, Henzel KS, Gaillard V, Rota A, Van Soom A. Characterization of the semen microbiota of healthy stud dogs using 16S RNA sequencing. Theriogenology 2024; 216:1-7. [PMID: 38141548 DOI: 10.1016/j.theriogenology.2023.12.018] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 12/13/2023] [Accepted: 12/13/2023] [Indexed: 12/25/2023]
Abstract
The reproductive microbiota of male dogs has never been investigated using culture-independent sequencing techniques. The purpose of the present study was to get seminal knowledge on the microbiota of the ejaculate. Specifically, factors as the fraction of the ejaculate, the sperm quality (normospermia, teratozoospermia), and the living environment were evaluated. The sperm-rich and the prostatic fractions of the ejaculate were collected from healthy stud dogs. Following the sperm analysis, samples from twenty animals (normospermic n = 10 and teratozoospermic n = 10) were stored at - 80 °C until further processing including DNA extraction and 16S rRNA sequencing. Alpha- (Shannon index) and beta- (Bray-Curtis, Unweighted UniFrac) diversities were assessed and compared (PERMANOVA) based on the group of samples (biological samples from the ejaculate and controls), the fraction of the ejaculate (sperm-rich and prostatic fractions), the animal group (normospermia and teratozoospermia), and the living environment of the animal (kennel or pet living in-house). The most abundant bacterial phyla in canine semen samples were Proteobacteria, Firmicutes, and Actinobacteria. Overall, the dominant bacterial family was that of Pasteurellaceae The genus Mycoplasma was never detected. No differences in terms of bacterial composition were found based on the fraction of the ejaculate and based on the animal group (P > 0.05). On the other hand, differences in alpha and beta diversities were highlighted based on the living environment (P = 0.001). Overall, the results of the present study provide preliminary insights on dog semen microbiota, opening a new chapter in the field of canine andrology. Our results suggest that the environment may play a role in influencing the reproductive microbiota of male dogs and that the prostatic fraction of the ejaculate can be used for further research as a representative of the semen microbiota.
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Affiliation(s)
- P Banchi
- Department of Internal Medicine, Reproduction and Population Medicine, Faculty of Veterinary Medicine, Ghent University, 9820, Merelbeke, Belgium; Department of Veterinary Science, University of Torino, 10095, Grugliasco, Italy.
| | - L Bertolotti
- Department of Veterinary Science, University of Torino, 10095, Grugliasco, Italy
| | - L Spanoghe
- Department of Internal Medicine, Reproduction and Population Medicine, Faculty of Veterinary Medicine, Ghent University, 9820, Merelbeke, Belgium
| | - H Ali Hassan
- Department of Internal Medicine, Reproduction and Population Medicine, Faculty of Veterinary Medicine, Ghent University, 9820, Merelbeke, Belgium
| | - J Lannoo
- Department of Internal Medicine, Reproduction and Population Medicine, Faculty of Veterinary Medicine, Ghent University, 9820, Merelbeke, Belgium
| | - G Domain
- Department of Internal Medicine, Reproduction and Population Medicine, Faculty of Veterinary Medicine, Ghent University, 9820, Merelbeke, Belgium
| | - K S Henzel
- Royal Canin Research Center, 30470, Aimargues, France
| | - V Gaillard
- Royal Canin Research Center, 30470, Aimargues, France
| | - A Rota
- Department of Veterinary Science, University of Torino, 10095, Grugliasco, Italy
| | - A Van Soom
- Department of Internal Medicine, Reproduction and Population Medicine, Faculty of Veterinary Medicine, Ghent University, 9820, Merelbeke, Belgium
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Girard C, El-Akri M, Durand M, Guérin O, Rambaud C, Cornu J, Brierre T, Cousin T, Gaillard V, Tricard T, Dupuis H, Hermieu N, Bertrand-Leon P, Chevallier D, Bruyere F, Biardeau X, Hermieu J, Lecoanet P, Capon G, Game X, Saussine C, Peyronnet B, Bentellis I. Efficacy, safety and reoperation-free survival of artificial urinary sphincter in non neurological male patients over 75 years of age. Eur Urol 2023. [DOI: 10.1016/s0302-2838(23)00819-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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Klein C, Bensalah K, Champy C, Bensalah K, Champy C, Olivier J, Doumerc N, Audenet F, Branger N, Roupret M, Surlemont L, Bruyere F, Durand X, Parier B, Durand M, Waeckel T, Rouget B, Gaillard V, Xylinas E, Vallee M, Long J, Bernhard J. Does Simplified PADUA Renal (SPARE) Nephrometry scoring system can help predicting renal function outcomes after Robot-Assisted Partial Nephrectomy (RAPN) (UroCCR study 93)? Eur Urol 2023. [DOI: 10.1016/s0302-2838(23)00904-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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Thouvenin J, Bigot P, Martinez Chanza N, Gaillard V, Cazzato R, Boudier P, Maillet D, Boissier R, Barthelemy P. 1466P Efficacy of immune checkpoint inhibitors (ICI) in renal cell carcinoma (RCC) venous tumor thrombus (VTT) shrinkage. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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El Akri M, Bentellis I, Tricard T, Brierre T, Cousin T, Dupuis H, Hermieu N, Gaillard V, Poussot B, Robin D, Pitout A, Bertrand-Leon P, Chevallier D, Bruyere F, Biardeau X, Monsaint H, Corbel L, Saussine C, Hermieu J, Lecoanet P, Capon G, Cornu JN, Game X, Ruffion A, Peyronnet B. Transcorporal vs. bulbar artificial urinary sphincter implantation in male patients with fragile urethra. Eur Urol 2022. [DOI: 10.1016/s0302-2838(22)00664-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Robin D, Peyronnet B, Bentellis I, El-Akri M, Cornu JN, Brierre T, Cousin T, Gaillard V, Poussot B, Dupuis H, Tricard T, Hermieu N, Pitout A, Beraud F, Chevallier D, Bruyere F, Biardeau X, Monsaint H, Corbel L, Hermieu JF, Lecoanet P, Capon G, Saussine C, Gamé X, Léon P. Sphincter urinaire artificiel chez les patients présentant une incontinence urinaire après High Intensivity Focused Ultrasound Therapy. Prog Urol 2022; 32:284-290. [DOI: 10.1016/j.purol.2021.11.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 11/14/2021] [Accepted: 11/15/2021] [Indexed: 10/19/2022]
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Ali Benali N, Pradère B, Lannes F, Thi Dang V, Mauger de Varennes A, Gaillard C, Berchiche W, Margue G, Bardet F, Manuguerra A, Pinar U, Duquesne I, Plassais C, Wandoren W, Hulin M, Khene ZE, Vallée M, Michiels C, Chabenes M, Gaillard V, Felber M, Kaulanjan K, Dominique I, Sbizerra M, Seizilles de Mazancourt E, Freton L, Gondran-Tellier B, Matillon X. TORSAFUF - Surgical exploration for torsion of spermatic cord suspicion and risk factors for unnecessary surgery: Results of a French nationwide retrospective study on 2940 patients. Prog Urol 2021; 32:92-100. [PMID: 34920923 DOI: 10.1016/j.purol.2021.10.011] [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: 07/10/2021] [Revised: 10/10/2021] [Accepted: 10/31/2021] [Indexed: 11/25/2022]
Abstract
BACKGROUNDS Spermatic cord torsion is a frequent urological emergency that mostly concerns teenagers and young adults. This study aimed to determine the clinical and surgical characteristics of young adults who had scrotal exploration for suspected spermatic cord torsion and to identify clinical risk factors associated with needless scrotal exploration. METHODS We retrospectively collected national data from patients aged 12years and older who underwent a surgical exploration for suspicion of torsion of the spermatic cord between 2005 and 2019 in 17 hospitals. We analyzed demographics, surgical and postoperative characteristics in our population. We compared the cohort according to the intraoperative diagnosis of torsion or not. RESULTS In total, 2940 had surgical exploration: 1802 (61.3%) patients had torsion of the spermatic cord and 1138 (38.7%) had another diagnosis. In multivariate analysis, age (OR: 1.04; 95% CI: 1.01-1.06; P=0.005), medical history of cryptorchism (OR: 4.14; 95% CI: 1.05-16.31; P=0.042) and VAS pain score (OR: 0.91; 95% CI: 0.83-0.98; P=0.018) were risk factors significantly associated with unnecessary surgical exploration. The rate of complications in the 90days after surgery was 11% in the "torsion" group, and 9.7% in the "non-torsion" group (P=0.28). CONCLUSION Scrotal exploration without intraoperative diagnosis of torsion was performed in 40% of our cohort. VAS pain score and cryptorchism history can help for the diagnosis but scrotal exploration remains the way to diagnose spermatic cord torsion and should be performed on the slightest suspicion, even after 24hours of symptoms, as the chances for testicular salvage remains around 50%.
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Affiliation(s)
- N Ali Benali
- Department of Urology, Poitiers University Hospital, Poitiers, France.
| | - B Pradère
- Department of Urology, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria
| | - F Lannes
- Department of Urology, Nord University Hospital, Marseille, France
| | - V Thi Dang
- Department of Urology, Toulouse University Hospital, Toulouse, France
| | | | - C Gaillard
- Department of Urology, Tours University Hospital, Tours, France
| | - W Berchiche
- Department of Urology, Nord University Hospital, Marseille, France
| | - G Margue
- Department of Urology, Bordeaux University Hospital, Bordeaux, France
| | - F Bardet
- Department of Urology, Dijon University Hospital, Dijon, France
| | - A Manuguerra
- Department of Urology, Nancy University Hospital, Nancy, France
| | - U Pinar
- Department of Urology, Hôpitaux Universitaire Pitié-Salpêtrière, AP-HP, Paris, France
| | - I Duquesne
- Department of Urology, Hôpitaux Universitaire Pitié-Salpêtrière, AP-HP, Paris, France
| | - C Plassais
- Department of Urology, Hôpitaux Universitaire Pitié-Salpêtrière, AP-HP, Paris, France
| | - W Wandoren
- Department of Urology, Pointe-à-Pitre University Hospital, Pointe-à-Pitre, Guadeloupe
| | - M Hulin
- Department of Urology, Reims University Hospital, Reims, France
| | - Z-E Khene
- Department of Urology, Rennes University Hospital, Rennes, France
| | - M Vallée
- Department of Urology, Poitiers University Hospital, Poitiers, France; Poitiers University, INSERM U1070, "Pharmacologie des Anti-Infectieux", UFR Médecine-Pharmacie, Pôle Biologie Santé, Poitiers, France
| | | | - C Michiels
- Department of Urology, Bordeaux University Hospital, Bordeaux, France
| | - M Chabenes
- Department of Urology, Grenoble University Hospital, Grenoble, France
| | - V Gaillard
- Department of Urology, Strasbourg University Hospital, Strasbourg, France
| | - M Felber
- Department of Urology, Nancy University Hospital, Nancy, France
| | - K Kaulanjan
- Department of Urology, Pointe-à-Pitre University Hospital, Pointe-à-Pitre, Guadeloupe
| | - I Dominique
- Department of Urology, Lyon Sud University Hospital, Lyon, France
| | - M Sbizerra
- Department of Urology, Lyon Sud University Hospital, Lyon, France
| | | | - L Freton
- Department of Urology, Rennes University Hospital, Rennes, France
| | | | - X Matillon
- Department of Urology, Lyon Sud University Hospital, Lyon, France
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Gaillard V, Tricard T, Somme G, Rebel S, Schumacher C, Lang H. Lien ville–hôpital pour le suivi postopératoire en onco-urologie : résultats à 3 ans du réseau LiVHOU. Prog Urol 2021. [DOI: 10.1016/j.purol.2021.08.068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Gaillard V, Lhuillier A, Bigot C, Pierard L, Trensz P, Schuster C, Malouf G, Fritsch A, Borchiellini D, Geoffrois L, Barthelemy P. CN54 Impact of the app-based and nurse-led supportive care program AKO@dom on dose-intensity of oral targeted therapies in patients with metastatic renal cell cancer: A multicentric observational retrospective study. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Berchiche W, Sbizzera M, Lannes F, Pinar U, Duquesne I, Felber M, Plassais C, Dang V, Ali Benali N, Gaillard C, Mauger De Varennes A, Margue G, Bardet F, Hulin M, Manuguerra A, Wandoren W, Chabennes M, Gaillard V, Matillon X, Khene Z, Pradere B. Impact of testicular torsion on fertility and erectile dysfunction: A multicenter national retrospective studyTORSAFUF. Eur Urol 2021. [DOI: 10.1016/s0302-2838(21)00899-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Bentellis I, El-Akri M, Cornu JN, Brierre T, Cousin T, Gaillard V, Poussot B, Dupuis H, Hermieu N, Robin D, Pitout A, Beraud F, Bertrand-Leon P, Chevallier D, Bruyere F, Biardeau X, Monsaint H, Corbel L, Hermieu JF, Lecoanet P, Capon G, Game X, Saussine C, Durand M, Peyronnet B. Impact of the center volume activity on the results of artificial urinary sphincter in non-neurological male patients. Eur Urol 2021. [DOI: 10.1016/s0302-2838(21)00506-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Bentellis I, El-Akri M, Cornu J, Brierre T, Cousin T, Gaillard V, Poussot B, Dupuis H, Hermieu N, Robin D, Pitout A, Beraud F, Bertrand-Leon P, Chevallier D, Bruyere F, Biardeau X, Monsaint H, Corbel L, Hermieu J, Lecoanet P, Capon G, Game X, Saussine C, Durand M, Peyronnet B. Prevalence and risk factors of artificial urinary sphincter revision in non-neurological male patients. Eur Urol 2021. [DOI: 10.1016/s0302-2838(21)00507-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Mamane J, Sanchez S, Lellouch A, El-Akrhi M, Cousin T, Capon G, Bentellis I, Chevallier D, Durand M, Robin D, Cornu JN, Dupuis H, Gaillard V, Poussot B, Tricard T, Saussine C, Ruffion A, Pitout A, Lecoanet P, Hermieu N, Hermieu JF, Peyronnet B, Bertrand-Leon P. Outcomes of artificial urinary sphincter implantation in irradiated patients: A multicenter study. Eur Urol 2021. [DOI: 10.1016/s0302-2838(21)00508-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Gaillard V, Tricard T, Garnon J, Cazzato R, Gangi A, Lang H. Thérapies ablatives itératives dans le cancer du rein héréditaire ou multifocal : résultats fonctionnels et oncologiques. Prog Urol 2020. [DOI: 10.1016/j.purol.2020.07.159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Mauger de Varennes A, Khene Z, Pradere B, Lannes F, Freton L, Dang V, Berchiche W, Ortier E, Michiels C, Margue G, Gaillard C, Ali Benali N, Bardet F, Hulin M, Gaillard V, Manuguerra A, Pinar U, Duquesne I, Felber M, Plassais C. Marqueurs biologiques préopératoires prédictifs de la viabilité testiculaire suite à une torsion du cordon spermatique. Prog Urol 2020. [DOI: 10.1016/j.purol.2020.07.058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Al-Batran SE, Moorahrend E, Maintz C, Hempel D, Thuss-Patience P, Gaillard V, Hegewisch Becker S. Clinical practice observation of trastuzumab (TRA) in patients (pts) with HER2-positive metastatic adenocarcinoma of the stomach (mGC) or the gastro-oesophageal junction (GEJ): Final analysis from the German non-interventional study HerMES. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx369.066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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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Panosyan E, Gotesman M, Kallay T, Martinez S, Bolaris M, Lasky J, Fouyssac F, Gentet JC, Frappaz D, Piguet C, Gorde-Grosjean S, Grill J, Schmitt E, Pall-Kondolff S, Chastagner P, Dudley R, Torok M, Gallegos D, Liu A, Handler M, Hankinson T, Dudley R, Torok M, Gallegos D, Liu A, Handler M, Hankinson T, Fukuoka K, Yanagisawa T, Suzuki T, Shirahata M, Adachi JI, Mishima K, Fujimaki T, Matsutani M, Sasaki A, Wada S, Nishikawa R, Suzuki M, Kondo A, Miyajima M, Arai H, Morin S, Uro-Coste E, Munzer C, Gambart M, Puget S, Miquel C, Maurage CA, Dufour C, Leblond P, Andre N, Kanold J, Icher C, Bertozzi AAI, Diez B, Muggeri A, Cerrato S, Calabrese B, Arakaki N, Marron A, Sevlever G, Fisher MJ, Widemann BC, Dombi E, Wolters P, Cantor A, Vinks A, Parentesis J, Ullrich N, Gutmann D, Viskochil D, Tonsgard J, Korf B, Packer R, Weiss B, Fisher MJ, Marcus L, Weiss B, Kim A, Dombi E, Baldwin A, Whitcomb P, Martin S, Gillespie A, Doyle A, Widemann BC, Bulwer C, Gan HW, Ederies A, Korbonits M, Powell M, Jeelani O, Jacques T, Stern E, Spoudeas H, Kimpo M, Tang J, Tan CL, Yeo TT, Chong QT, Ruland V, Hartung S, Kordes U, Wolff JE, Paulus W, Hasselblatt M, Patil S, Zaky W, Khatua S, Lassen-Ramshad Y, Christensen L, Clausen N, Bendel A, Dobyns W, Bennett J, Reyes-Mugica M, Petronio J, Nikiforova M, Mueller H, Kirches E, Korshunov A, Pfister S, Mawrin C, Hemenway M, Foreman N, Kumar A, Kalra S, Acharya R, Radhakrishnan N, Sachdeva A, Nimmervoll B, Hadjadj D, Tong Y, Shelat AA, Low J, Miller G, Stewart CF, Guy RK, Gilbertson RJ, Miwa T, Nonaka Y, Oi S, Sasaki H, Yoshida K, Northup R, Klesse L, McNall-Knapp R, Blagia M, Romeo F, Toscano S, D'Agostino A, Lafay-Cousin L, Lindzon G, Bouffet E, Taylor M, Hader W, Nordal R, Hawkins C, Laperriere N, Laughlin S, Shash H, McDonald P, Wrogemann J, Ahsanuddin A, Matsuda K, Soni R, Vanan MI, Cohen K, Taylor I, Rodriguez F, Burger P, Yeh J, Rao S, Iskandar B, Kienitz BA, Bruce R, Keller L, Salamat S, Puccetti D, Patel N, Hana A, Gunness VRN, Berthold C, Hana A, Bofferding L, Neuhaeuser C, Scalais E, Kieffer I, Feiden W, Graf N, Boecher-Schwarz H, Hertel F, Cruz O, Morales A, de Torres C, Vicente A, Gonzalez MA, Sunol M, Mora J, Garcia G, Guillen A, Muchart J, Yankelevich M, Sood S, Diver J, Savasan S, Poulik J, Bhambhani K, Hochart A, Gaillard V, Bonne NX, Baroncini M, Andre N, Vannier JP, Dubrulle F, Lejeune JP, Vincent C, Leblond P, Japp A, Gessi M, Muehlen AZ, Klein-Hitpass L, Pietsch T, Sharma M, Yadav R, Malgulwar PB, Pathak P, Sigamani E, Suri V, Sarkar C, Jagdevan A, Singh M, Sharma BS, Garg A, Bakhshi S, Faruq M, Doromal D, Villafuerte CJ, Tezcanli E, Yilmaz M, Sengoz M, Peker S, Dhall G, Robison N, Margol A, Evans A, Krieger M, Finlay J, Rosser T, Khakoo Y, Pratilas C, Marghoob A, Berger M, Hollmann T, Rosenblum M, Mrugala M, Giglio P, Keene C, Ferreira M, Garcia D, Weil A, Khatib Z, Diaz A, Niazi T, Bhatia S, Ragheb J, Robison N, Rangan K, Margol A, Rosser T, Finlay J, Dhall G, Gilles F, Morris C, Chen Y, Shetty V, Elbabaa S, Guzman M, Abdel-Baki MS, Abdel-Baki MS, Waguespack S, Jones J, Stapleton S, Baskin D, M, Okcu F. RARE TUMOURS. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Cordaillat M, Reboul C, Gaillard V, Lartaud I, Jover B, Rugale C. Plasma volume and arterial stiffness in the cardiac alterations associated with long-term high sodium feeding in rats. Am J Hypertens 2011; 24:451-7. [PMID: 21233801 DOI: 10.1038/ajh.2010.260] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND Rats fed an early and long-term high-salt diet (HS, NaCl 8%) developed significant cardiovascular hypertrophy without major changes in blood pressure. The mechanism of this cardiac hypertrophy has not been yet elucidated. METHODS In the present work, we assessed the influence of volume overload and arterial stiffness on the structural and functional cardiac changes induced by a high salt feeding from weaning to 5 months of age in Sprague-Dawley rats. RESULTS Cardiac hypertrophy in HS rats was associated with clear augmentation in the size of left ventricular (LV) cardiomyocyte as compared with rats fed regular diet (NS). Echocardiography revealed a marked increase in relative wall thickness. Of note, no alteration of global and regional systolic and diastolic function was detected in HS rats. High sodium consumption was associated with a slight increase in aortic mean and pulse pressure (PP) without effect on pulse wave velocity (PWV) and elastic modulus. Plasma volume and central venous pressure were higher in HS than NS rats. Whereas plasma endothelin level was twofold higher in HS than in NS rats, LV endothelin level was similar in both groups. Treatment by the endothelin receptors blocker bosentan had no detectable effect on the changes induced by HS diet. CONCLUSIONS High sodium intake was associated with concentric cardiac hypertrophy without change of systolic and diastolic function. Aortic rigidity was not a determinant of cardiac hypertrophy. Beside a likely direct effect of sodium on cardiovascular system the slight increase in arterial pressure and plasma volume play a role.
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Lartaud I, Gaillard V, Dauca M, Atkinson J. Importance de l’activation des PPARgamma dans la pharmacologie de la rigidité artérielle. Annales Pharmaceutiques Françaises 2007; 65:189-94. [PMID: 17489075 DOI: 10.1016/s0003-4509(07)90035-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [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: 11/17/2022]
Abstract
Specific treatment of age-related aortic wall arteriosclerosis and stiffening is lacking. As anti-inflammatory ligands for peroxisome proliferator-activated receptor-gamma have beneficial effects on the arterial wall in atherosclerosis, we investigated whether chronic pioglitazone treatment protects against another form of vascular wall disease, arteriosclerosis. In a rat model of elastocalcinotic arteriosclerosis (hypervitaminosis D and nicotine, VDN), we evaluated whether pioglitazone attenuated arteriosclerosis and its consequences, aortic wall rigidity, increased aortic pulse pressure and left ventricular hypertrophy. In VDN rats, medial calcification was associated with monocyte/macrophage infiltration and induction of TNF-alpha and IL-1B. Pioglitazone decreased TNF-alpha and IL-1B mRNA expression, blunted aortic wall calcification and prevented fragmentation of elastic fibers. Pioglitazone reduced aortic wall stiffness, aortic pulse pressure and left ventricular hypertrophy. Our results may be clinically relevant in elderly patients suffering from aortic wall stiffening and isolated systolic hypertension.
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Affiliation(s)
- I Lartaud
- Laboratoire de pharmacologie cardiovasculaire, Faculté de pharmacie, Université Henri Poincaré Nancy-1, 5 rue Albert Lebrun, F 54000 Nancy
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Jegger D, da Silva R, Jeanrenaud X, Nasratullah M, Tevaerai H, von Segesser L, Segers P, Gaillard V, Atkinson J, Lartaud I, Stergiopulos N. Ventricular-arterial coupling in a rat model of reduced arterial compliance provoked by hypervitaminosis D and nicotine. J Biomech 2006. [DOI: 10.1016/s0021-9290(06)84105-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Gaillard V, Vivier G, Barjhoux L, Souchier C, Touraine JL, Blanc-Brunat N. Image analysis of dendritic cells in the human fetal thymus. Thymus 1993; 21:75-91. [PMID: 8101666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The distribution and evolution of thymic dendritic cells (DC) were studied during human ontogeny. Immunochemical techniques were used to detect S100 protein-positive cells on fetal thymus sections, at different post-fecundation (PF) ages; an image analysis of these positive cells was then carried out. Variations in the percentage of these cells in the medulla were determined according to age: the higher percentages were seen at 12 and 16 weeks PF. Dendritic cells were present at an early stage in the thymic rudiment (7 weeks PF), a finding consistent with an origin of these cells in the fetal liver, and with the possible existence of local attraction and/or maturation factors. The expression of the CD54 adhesion molecule revealed the existence of particular interactions between DC and lymphocytes in the medullary area, and at the cortico-medullar junction. Diffuse CD11a (LFA-1) expression on lymphocytes was consistent throughout gestation. The monocyte/macrophage markers (CD11b, CD14) and the reaction of non-specific esterases showed that the distribution pattern of these cells differed from the DC pattern. These ontogenic data are related to the significant role played by DC throughout the different stages of thymopoiesis.
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Affiliation(s)
- V Gaillard
- Immunobiology and Transplantation Unit, Inserm U 80, Hôpital Ed. Herriot, Lyon, France
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Abrahams C, Gaillard V. Instillation of steroids in the eye: its effect on lymphocytes in regional lymph nodes and in peripheral blood. S Afr Med J 1980; 57:993-5. [PMID: 6996136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
The blastogenic response to mitogens by lymphocytes after topical instillation of steroids was studied in rabbits. The effect on lymphocytes from the local draining lymph nodes and peripheral blood was assessed. There was no effect on the lymphocytes of local draining lymph nodes; however, a decrease in phytohaemagglutinin response occurred in peripheral blood lymphocytes.
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