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Barré T, Mercié P, Lions C, Miailhes P, Zucman D, Aumaître H, Esterle L, Sogni P, Carrieri P, Salmon-Céron D, Marcellin F, Salmon D, Wittkop L, Sogni P, Esterle L, Trimoulet P, Izopet J, Serfaty L, Paradis V, Spire B, Carrieri P, Valantin MA, Pialoux G, Chas J, Poizot-Martin I, Barange K, Naqvi A, Rosenthal E, Bicart-See A, Bouchaud O, Gervais A, Lascoux-Combe C, Goujard C, Lacombe K, Duvivier C, Neau D, Morlat P, Bani-Sadr F, Meyer L, Boufassa F, Autran B, Roque AM, Solas C, Fontaine H, Costagliola D, Piroth L, Simon A, Zucman D, Boué F, Miailhes P, Billaud E, Aumaître H, Rey D, Peytavin G, Petrov-Sanchez V, Levier A, Usubillaga R, Terris B, Tremeaux P, Katlama C, Valantin MA, Stitou H, Cacoub P, Nafissa S, Benhamou Y, Charlotte F, Fourati S, Zaegel O, Laroche H, Tamalet C, Callard P, Bendjaballah F, Le Pendeven C, Marchou B, Alric L, Metivier S, Selves J, Larroquette F, Rio V, Haudebourg J, Saint-Paul MC, De Monte A, Giordanengo V, Partouche C, Martin A, Ziol M, Baazia Y, Iwaka-Bande V, Gerber A, Uzan M, Garipuy D, Ferro-Collados MJ, Nicot F, Yazdanpanah Y, Adle-Biassette H, Alexandre G, Molina JM, Bertheau P, Chaix ML, Delaugerre C, Maylin S, Bottero J, Krause J, Girard PM, Wendum D, Cervera P, Adam J, Viala C, Vittecocq D, Quertainmont Y, Teicher E, Pallier C, Lortholary O, Rouzaud C, Lourenco J, Touam F, Louisin C, Avettand-Fenoel V, Gardiennet E, Mélard A, Ochoa A, Blanchard E, Castet-Lafarie S, Cazanave C, Malvy D, Dupon M, Dutronc H, Dauchy F, Lacaze-Buzy L, Desclaux A, Bioulac-Sage P, Reigadas S, Lacoste D, Bonnet F, Bernard N, Hessamfar M, J, Paccalin F, Martell C, Pertusa MC, Vandenhende M, Mercié P, Pistone T, Receveur MC, Méchain M, Duffau P, Rivoisy C, Faure I, Caldato S, Bellecave P, Tumiotto C, Pellegrin JL, Viallard JF, Lazzaro E, Greib C, Majerholc C, Brollo M, Farfour E, Devoto JP, Kansau I, Chambrin V, Pignon C, Berroukeche L, Fior R, Martinez V, Abgrall S, Favier M, Deback C, Lévy Y, Dominguez S, Lelièvre JD, Lascaux AS, Melica G, Raffi F, Allavena C, Reliquet V, Boutoille D, Biron C, Lefebvre M, Hall N, Bouchez S, Rodallec A, Le Guen L, Hemon C, Peyramond D, Chidiac C, Ader F, Biron F, Boibieux A, Cotte L, Ferry T, Perpoint T, Koffi J, Zoulim F, Bailly F, Lack P, Maynard M, Radenne S, Amiri M, Valour F, Augustin-Normand C, Scholtes C, Le-Thi TT, Van Huyen PCMD, Buisson M, Waldner-Combernoux A, Mahy S, Rousseau AS, Martins C, Galim S, Lambert D, Nguyen Y, Berger JL, Hentzien M, Brodard V, Partisani M, Batard ML, Cheneau C, Priester M, Bernard-Henry C, de Mautort E, Fischer P, Gantner P, Fafi-Kremer S, Roustant F, Platterier P, Kmiec I, Traore L, Lepuil S, Parlier S, Sicart-Payssan V, Bedel E, Anriamiandrisoa S, Pomes C, Mole M, Bolliot C, Catalan P, Mebarki M, Adda-Lievin A, Thilbaut P, Ousidhoum Y, Makhoukhi FZ, Braik O, Bayoud R, Gatey C, Pietri MP, Le Baut V, Rayana RB, Bornarel D, Chesnel C, Beniken D, Pauchard M, Akel S, Lions C, Ivanova A, Ritleg AS, Debreux C, Chalal L, Zelie J, Hue H, Soria A, Cavellec M, Breau S, Joulie A, Fisher P, Gohier S, Croisier-Bertin D, Ogoudjobi S, Brochier C, Thoirain-Galvan V, Le Cam M, Chalouni M, Conte V, Dequae-Merchadou L, Desvallees M, Gilbert C, Gillet S, Knight R, Lemboub T, Marcellin F, Michel L, Mora M, Protopopescu C, Roux P, Tezkratt S, Barré T, Rojas TR, Baudoin M, Di Beo MSV, Nishimwe M. HCV cure: an appropriate moment to reduce cannabis use in people living with HIV? (ANRS CO13 HEPAVIH data). AIDS Res Ther 2022; 19:15. [PMID: 35292069 PMCID: PMC8922772 DOI: 10.1186/s12981-022-00440-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Accepted: 03/06/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Thanks to direct-acting antivirals, hepatitis C virus (HCV) infection can be cured, with similar rates in HCV-infected and HIV-HCV co-infected patients. HCV cure is likely to foster behavioral changes in psychoactive substance use, which is highly prevalent in people living with HIV (PLWH). Cannabis is one substance that is very commonly used by PLWH, sometimes for therapeutic purposes. We aimed to identify correlates of cannabis use reduction following HCV cure in HIV-HCV co-infected cannabis users and to characterize persons who reduced their use. METHODS We used data collected on HCV-cured cannabis users in a cross-sectional survey nested in the ANRS CO13 HEPAVIH cohort of HIV-HCV co-infected patients, to perform logistic regression, with post-HCV cure cannabis reduction as the outcome, and socio-behavioral characteristics as potential correlates. We also characterized the study sample by comparing post-cure substance use behaviors between those who reduced their cannabis use and those who did not. RESULTS Among 140 HIV-infected cannabis users, 50 and 5 had reduced and increased their use, respectively, while 85 had not changed their use since HCV cure. Cannabis use reduction was significantly associated with tobacco use reduction, a decrease in fatigue level, paying more attention to one's dietary habits since HCV cure, and pre-HCV cure alcohol abstinence (p = 0.063 for alcohol use reduction). CONCLUSIONS Among PLWH using cannabis, post-HCV cure cannabis reduction was associated with tobacco use reduction, improved well-being, and adoption of healthy behaviors. The management of addictive behaviors should therefore be encouraged during HCV treatment.
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Marcellin F, Di Beo V, Aumaitre H, Mora M, Wittkop L, Duvivier C, Protopopescu C, Lacombe K, Esterle L, Berenger C, Gilbert C, Bouchaud O, Poizot-Martin I, Sogni P, Salmon-Ceron D, Carrieri P, Wittkop L, Sogni P, Esterle L, Trimoulet P, Izopet J, Serfaty L, Paradis V, Spire B, Carrieri P, Valantin M, Pialoux G, Chas J, Poizot-Martin I, Barange K, Naqvi A, Rosenthal E, Bicart-See A, Bouchaud O, Gervais A, Lascoux-Combe C, Goujard C, Lacombe K, Duvivier C, Neau D, Morlat P, Bani-Sadr F, Meyer L, Boufassa F, Autran B, Roque A, Solas C, Fontaine H, Costagliola D, Piroth L, Simon A, Zucman D, Boué F, Miailhes P, Billaud E, Aumaître H, Rey D, Peytavin G, Petrov-Sanchez V, Lebrasseur-Longuet D, Salmon D, Usubillaga R, Sogni P, Terris B, Tremeaux P, Katlama C, Valantin M, Stitou H, Simon A, Cacoub P, Nafissa S, Benhamou Y, Charlotte F, Fourati S, Poizot-Martin I, Zaegel O, Laroche H, Tamalet C, Pialoux G, Chas J, Callard P, Bendjaballah F, Amiel C, Le Pendeven C, Marchou B, Alric L, Barange K, Metivier S, Selves J, Larroquette F, Rosenthal E, Naqvi A, Rio V, Haudebourg J, Saint-Paul M, De Monte A, Giordanengo V, Partouche C, Bouchaud O, Martin A, Ziol M, Baazia Y, Iwaka-Bande V, Gerber A, Uzan M, Bicart-See A, Garipuy D, Ferro-Collados M, Selves J, Nicot F, Gervais A, Yazdanpanah Y, Adle-Biassette H, Alexandre G, Peytavin G, Lascoux-Combe C, Molina J, Bertheau P, Chaix M, Delaugerre C, Maylin S, Lacombe K, Bottero J, Krause J, Girard P, Wendum D, Cervera P, Adam J, Viala C, Vittecocq D, Goujard C, Quertainmont Y, Teicher E, Pallier C, Lortholary O, Duvivier C, Rouzaud C, Lourenco J, Touam F, Louisin C, Avettand-Fenoel V, Gardiennet E, Mélard A, Neau D, Ochoa A, Blanchard E, Castet-Lafarie S, Cazanave C, Malvy D, Dupon M, Dutronc H, Dauchy F, Lacaze-Buzy L, Desclaux A, Bioulac-Sage P, Trimoulet P, Reigadas S, Morlat P, Lacoste D, Bonnet F, Bernard N, Hessamfar, J M, Paccalin F, Martell C, Pertusa M, Vandenhende M, Mercié P, Malvy D, Pistone T, Receveur M, Méchain M, Duau P, Rivoisy C, Faure I, Caldato S, Bioulac-Sage P, Trimoulet P, Reigadas S, Bellecave P, Tumiotto C, Pellegrin J, Viallard J, Lazzaro E, Greib C, Bioulac-Sage P, Trimoulet P, Reigadas S, Zucman D, Majerholc C, Brollo M, Farfour E, Boué F, Polo Devoto J, Kansau I, Chambrin V, Pignon C, Berroukeche L, Fior R, Martinez V, Abgrall S, Favier M, Deback C, Lévy Y, Dominguez S, Lelièvre J, Lascaux A, Melica G, Billaud E, Raffi F, Allavena C, Reliquet V, Boutoille D, Biron C, Lefebvre M, Hall N, Bouchez S, Rodallec A, Le Guen L, Hemon C, Miailhes P, Peyramond D, Chidiac C, Ader F, Biron F, Boibieux A, Cotte L, Ferry T, Perpoint T, Koffi J, Zoulim F, Bailly F, Lack P, Maynard M, Radenne S, Amiri M, Valour F, Koffi J, Zoulim F, Bailly F, Lack P, Maynard M, Radenne S, Augustin-Normand C, Scholtes C, Le-Thi T, Piroth L, Chavanet P, Duong Van Huyen M, Buisson M, Waldner-Combernoux A, Mahy S, Binois R, Simonet-Lann A, Croisier-Bertin D, Salmon Rousseau A, Martins C, Aumaître H, Galim S, Bani-Sadr F, Lambert D, Nguyen Y, Berger J, Hentzien M, Brodard V, Rey D, Partisani M, Batard M, Cheneau C, Priester M, Bernard-Henry C, de Mautort E, Gantner et S Fafi-Kremer P, Roustant F, Platterier P, Kmiec I, Traore L, Lepuil S, Parlier S, Sicart-Payssan V, Bedel E, Anriamiandrisoa S, Pomes C, Touam F, Louisin C, Mole M, Bolliot C, Catalan P, Mebarki M, Adda-Lievin A, Thilbaut P, Ousidhoum Y, Makhoukhi F, Braik O, Bayoud R, Gatey C, Pietri M, Le Baut V, Ben Rayana R, Bornarel D, Chesnel C, Beniken D, Pauchard M, Akel S, Caldato S, Lions C, Ivanova A, Ritleg AS, Debreux C, Chalal L, Zelie J, Hue H, Soria A, Cavellec M, Breau S, Joulie A, Fisher P, Gohier S, Croisier-Bertin D, Ogoudjobi S, Brochier C, Thoirain-Galvan V, Le Cam M, Carrieri P, Chalouni M, Conte V, Dequae-Merchadou L, Desvallees M, Esterle L, Gilbert C, Gillet S, Knight R, Lemboub T, Marcellin F, Michel L, Mora M, Protopopescu C, Roux P, Spire B, Tezkratt S, Barré T, Baudoin M, Santos M, Di Beo V, Nishimwe M, Wittkop L. Patient-reported symptoms during direct-acting antiviral treatment: A real-life study in HIV-HCV coinfected patients (ANRS CO13 HEPAVIH). J Hepatol 2020; 72:588-591. [PMID: 31924411 DOI: 10.1016/j.jhep.2019.10.019] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 10/17/2019] [Accepted: 10/25/2019] [Indexed: 01/26/2023]
Affiliation(s)
- Fabienne Marcellin
- Aix Marseille Univ, INSERM, IRD, SESSTIM, Sciences Économiques & Sociales de la Santé & Traitement de l'Information Médicale, Marseille, France; ORS PACA, Observatoire régional de la santé Provence-Alpes-Côte d'Azur, Marseille, France.
| | - Vincent Di Beo
- Aix Marseille Univ, INSERM, IRD, SESSTIM, Sciences Économiques & Sociales de la Santé & Traitement de l'Information Médicale, Marseille, France; ORS PACA, Observatoire régional de la santé Provence-Alpes-Côte d'Azur, Marseille, France
| | - Hugues Aumaitre
- Infectious and Tropical Disease Unit, Perpignan Hospital Center, Perpignan, France
| | - Marion Mora
- Aix Marseille Univ, INSERM, IRD, SESSTIM, Sciences Économiques & Sociales de la Santé & Traitement de l'Information Médicale, Marseille, France; ORS PACA, Observatoire régional de la santé Provence-Alpes-Côte d'Azur, Marseille, France
| | - Linda Wittkop
- Univ. Bordeaux, ISPED, Inserm, Bordeaux Population Health Research Center, Team MORPH3EUS, UMR 1219, CIC-EC 1401, F-33000 Bordeaux, France; CHU de Bordeaux, Pole de santé publique, F-33000 Bordeaux, France
| | - Claudine Duvivier
- AP-HP-Necker Hospital, Infectious Diseases Department, Necker-Pasteur Infectiology Center, IHU Imagine, Université de Paris, INSERM, U1016, Institut Cochin, CNRS, UMR8104, Paris, France; Institut Pasteur, Medical Center of Institut Pasteur, Necker-Pasteur Infectiology Center, Paris, France
| | - Camelia Protopopescu
- Aix Marseille Univ, INSERM, IRD, SESSTIM, Sciences Économiques & Sociales de la Santé & Traitement de l'Information Médicale, Marseille, France; ORS PACA, Observatoire régional de la santé Provence-Alpes-Côte d'Azur, Marseille, France
| | - Karine Lacombe
- Infectious and Tropical Disease Unit, Paris Public Hospitals, Saint-Antoine Hospital, Paris, France; UMR S1136, Pierre Louis Epidemiology and Public Health Institute, Pierre and Marie Curie University, Paris, France
| | - Laure Esterle
- Univ. Bordeaux, ISPED, Inserm, Bordeaux Population Health Research Center, Team MORPH3EUS, UMR 1219, CIC-EC 1401, F-33000 Bordeaux, France
| | - Cyril Berenger
- Aix Marseille Univ, INSERM, IRD, SESSTIM, Sciences Économiques & Sociales de la Santé & Traitement de l'Information Médicale, Marseille, France; ORS PACA, Observatoire régional de la santé Provence-Alpes-Côte d'Azur, Marseille, France
| | - Camille Gilbert
- Univ. Bordeaux, ISPED, Inserm, Bordeaux Population Health Research Center, Team MORPH3EUS, UMR 1219, CIC-EC 1401, F-33000 Bordeaux, France
| | - Olivier Bouchaud
- Infectious and Tropical Disease Unit, Paris Publics Hospitals, Avicenne Hospital, Bobigny, France; Paris 13 Nord University, Bobigny, France
| | - Isabelle Poizot-Martin
- Aix Marseille Univ, INSERM, IRD, SESSTIM, Sciences Économiques & Sociales de la Santé & Traitement de l'Information Médicale, Marseille, France; APHM Sainte-Marguerite, Clinical Immunohematology Unit, Aix Marseille University, Marseille, France
| | - Philippe Sogni
- Université Paris Descartes, Paris, France; INSERM U-1223, Institut Pasteur, Paris, France; Service d'Hépatologie, hôpital Cochin, Assistance Publique - Hôpitaux de Paris, France
| | - Dominique Salmon-Ceron
- Université Paris Descartes, Paris, France; Service Maladies infectieuses et tropicales, AP-HP, Hôpital Cochin, Paris, France
| | - Patrizia Carrieri
- Aix Marseille Univ, INSERM, IRD, SESSTIM, Sciences Économiques & Sociales de la Santé & Traitement de l'Information Médicale, Marseille, France; ORS PACA, Observatoire régional de la santé Provence-Alpes-Côte d'Azur, Marseille, France
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Djaogol T, Fontaine H, Baudoin M, Protopopescu C, Marcellin F, Dorival C, Bourlière M, Delarocque-Astagneau E, Carrat F, Carrieri P. Sustained virological response to Do hepatitis C DAA treatments in migrants and non-migrants groups. Eur J Public Health 2019. [DOI: 10.1093/eurpub/ckz186.052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Although the efficacy of direct acting antivirals (DAA) against hepatitis C (HCV) has been widely proven, data lack on their effectiveness in the most vulnerable groups. In France, despite universal health coverage, migrants cumulate vulnerabilities including delays in screening that may affect both access to care and treatment effectiveness. We tested whether DAA-treated migrants had sustained virological response (SVR) rates comparable to not-migrants.
Methods
We used data collected in chronic HCV-infected patients of the ANRS CO22 HEPATHER cohort, receiving a first treatment with DAA, with follow-up from 2012 until 2022. SVR was measured by PCR, 12 weeks after the end of treatment. The main covariate was a 4-category variable comparing migrants and non-migrants, with or without other vulnerability conditions (including drug use, unhealthy alcohol use, living in poverty, being a man who have sex with men). We used a Poisson regression model to assess the relationship between this covariate and SVR after adjustment for significant predictors and potential confounders.
Results
The analysis included 5,080 individuals, of which 17% classified as migrants with at least one vulnerability, 10% as migrants with no vulnerability, 39% as non-migrants with at least one vulnerability and 35% as non-migrants with no vulnerability. Median [IQR] age was 57 [51-65] years, 56% of individuals were men, and 96% had SVR. The multivariable analysis showed no significant difference between the 4-category covariate and SVR. In addition, we found that SVR rates increased steadily during follow-up.
Conclusions
This is the first analysis exploring differences in SVR rates among migrants and not-migrants. The lack of significant differences found despite the power of the study suggests that migrants respond to DAA treatment as well as any other group of HCV-infected patients. These data can help advocating better screening and access to treatment for HCV-infected migrants in France.
Key messages
No significant differences were observed between migrants and non-migrants in terms of effectiveness of DAA treatment. These findings can help improving access to HCV care for migrants.
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Affiliation(s)
| | - H Fontaine
- AP-HP, Hôpital Cochin, Unité d’Hépatologie, Paris, France
| | - M Baudoin
- SESSTIM UMR 1252, Marseille, France
- ORS PACA, Observatoire Régional de la Santé Provence-Alpes-Côte d’Azur, Marseille, France
| | - C Protopopescu
- SESSTIM UMR 1252, Marseille, France
- ORS PACA, Observatoire Régional de la Santé Provence-Alpes-Côte d’Azur, Marseille, France
| | - F Marcellin
- SESSTIM UMR 1252, Marseille, France
- ORS PACA, Observatoire Régional de la Santé Provence-Alpes-Côte d’Azur, Marseille, France
| | - C Dorival
- Sorbonne Université, Institut National de la Santé et de la Recherche Médicale, Institut Pierre Louis d’Epidémiologie et de Santé Publique, Paris, France
| | - M Bourlière
- Department of Hepatology and Gastroenterology, Hôpital Saint Joseph, P, France
| | - E Delarocque-Astagneau
- UMR1181, Biostatistique, Biomathématique, Pharmaco-épidémiologie et Maladies Infectieuses (B2PHI), Institut Pasteur, Inserm, Université de Versailles-Saint-Quentin-en-Yvelines (UVSQ), Paris, France
| | - F Carrat
- Sorbonne Université, Institut National de la Santé et de la Recherche Médicale, Institut Pierre Louis d’Epidémiologie et de Santé Publique, Paris, France
| | - P Carrieri
- SESSTIM UMR 1252, Marseille, France
- ORS PACA, Observatoire Régional de la Santé Provence-Alpes-Côte d’Azur, Marseille, France
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Bailenger J, Baudoin M, Pautrizel R. Etude de l’immunité des rongeurs à l’égard d'Hymenolepis nana (Von Siebold 1852, Blanchard 1891). ACTA ACUST UNITED AC 2017. [DOI: 10.1051/parasite/1961364596] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Abstract
In this paper, we study the dynamics of cylindrical armoured bubbles excited by mechanical vibrations. A step by step transition from cylindrical to spherical shape is reported as the intensity of the vibration is increased, leading to a reduction of the bubble surface and a dissemination of the excess particles. We demonstrate through energy balance that nonspherical armoured bubbles constitute a metastable state. The vibration instills the activation energy necessary for the bubble to return to its least energetic stable state: a spherical armoured bubble. At this point, particle desorption can only be achieved through higher amplitude of excitation required to overcome capillary retention forces. Nonspherical armoured bubbles open perspectives for tailored localized particle dissemination with limited excitation power.
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Affiliation(s)
- G Prabhudesai
- Univ. Lille, CNRS, Centrale Lille, ISEN, Univ. Valenciennes, UMR 8520, International Laboratory LEMAC/LICS - IEMN, F-59000 Lille, France.
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Magniez JC, Baudoin M, Liu C, Zoueshtiagh F. Dynamics of liquid plugs in prewetted capillary tubes: from acceleration and rupture to deceleration and airway obstruction. Soft Matter 2016; 12:8710-8717. [PMID: 27714328 DOI: 10.1039/c6sm01463a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The dynamics of individual liquid plugs pushed at a constant pressure head inside prewetted cylindrical capillary tubes is investigated experimentally and theoretically. It is shown that, depending on the thickness of the prewetting film and the magnitude of the pressure head, the plugs can either experience a continuous acceleration leading to a dramatic decrease of their size and eventually their rupture or conversely, a progressive deceleration associated with their growth and an exacerbation of the airway obstruction. These behaviors are quantitatively reproduced using a simple nonlinear model [Baudoin et al., Proc. Natl. Acad. Sci. U. S. A., 2013, 110, 859] adapted here for cylindrical channels. Furthermore, an analytical criterion for the transition between these two regimes is derived and successfully compared with extensive experimental data. The potential implications of this work for pulmonary obstructive diseases are discussed.
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Affiliation(s)
- J C Magniez
- IEMN, International Laboratory LEMAC/LICS, UMR CNRS 8520, Université de Lille, Avenue Poincaré, 59652 Villeneuve d'Ascq, France.
| | - M Baudoin
- IEMN, International Laboratory LEMAC/LICS, UMR CNRS 8520, Université de Lille, Avenue Poincaré, 59652 Villeneuve d'Ascq, France.
| | - C Liu
- IEMN, International Laboratory LEMAC/LICS, UMR CNRS 8520, Université de Lille, Avenue Poincaré, 59652 Villeneuve d'Ascq, France.
| | - F Zoueshtiagh
- IEMN, International Laboratory LEMAC/LICS, UMR CNRS 8520, Université de Lille, Avenue Poincaré, 59652 Villeneuve d'Ascq, France.
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Bussonnière A, Baudoin M, Brunet P, Matar OB. Dynamics of sessile and pendant drops excited by surface acoustic waves: Gravity effects and correlation between oscillatory and translational motions. Phys Rev E 2016; 93:053106. [PMID: 27300977 DOI: 10.1103/physreve.93.053106] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2015] [Indexed: 06/06/2023]
Abstract
When sessile droplets are excited by ultrasonic traveling surface acoustic waves (SAWs), they undergo complex dynamics with both oscillations and translational motion. While the nature of the Rayleigh-Lamb quadrupolar drop oscillations has been identified, their origin and their influence on the drop mobility remains unexplained. Indeed, the physics behind this peculiar dynamics is complex with nonlinearities involved both at the excitation level (acoustic streaming and radiation pressure) and in the droplet response (nonlinear oscillations and contact line dynamics). In this paper, we investigate the dynamics of sessile and pendant drops excited by SAWs. For pendant drops, so-far unreported dynamics are observed close to the drop detachment threshold with the suppression of the translational motion. Away from this threshold, the comparison between pendant and sessile drop dynamics allows us to identify the role played by gravity or, more generally, by an initial or dynamically induced stretching of the drop. In turn, we elucidate the origin of the resonance frequency shift, as well as the origin of the strong correlation between oscillatory and translational motion. We show that for sessile drops, the velocity is mainly determined by the amplitude of oscillation and that the saturation observed is due to the nonlinear dependence of the drop response frequency on the dynamically induced stretching.
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Affiliation(s)
- A Bussonnière
- Université Lille 1, International Laboratory LEMAC/LICS, IEMN, UMR CNRS 8520, Avenue Poincaré, 59652 Villeneuve d'Ascq, France
| | - M Baudoin
- Université Lille 1, International Laboratory LEMAC/LICS, IEMN, UMR CNRS 8520, Avenue Poincaré, 59652 Villeneuve d'Ascq, France
| | - P Brunet
- Laboratoire Matière et Systèmes Complexes, UMR CNRS 7057, Université Paris Diderot, 10 rue Alice Domon et Léonie Duquet, 75205 Paris cedex 13, France
| | - O Bou Matar
- Université Lille 1, International Laboratory LEMAC/LICS, IEMN, UMR CNRS 8520, Avenue Poincaré, 59652 Villeneuve d'Ascq, France
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Adssi HE, Acouetey DS, Baudoin M, Glin S, Kolopp M, Baldé M, Fourrière MJ. Bilan de la mise en place du plan d’action qualité (Paq) des données PMSI MCO après la réorganisation du codage des diagnostics au CHU de Nancy depuis février 2011. Rev Epidemiol Sante Publique 2013. [DOI: 10.1016/j.respe.2013.01.045] [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: 10/27/2022] Open
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9
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Brunet P, Baudoin M, Matar OB, Zoueshtiagh F. Droplet displacements and oscillations induced by ultrasonic surface acoustic waves: a quantitative study. Phys Rev E Stat Nonlin Soft Matter Phys 2010; 81:036315. [PMID: 20365862 DOI: 10.1103/physreve.81.036315] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2009] [Indexed: 05/05/2023]
Abstract
We present an experimental study of a droplet interacting with an ultrasonic surface acoustic wave. Depending on the amplitude of the wave, the drop can either experience an internal flow with its contact line pinned, or (at higher amplitude) move along the direction of the wave also with internal flow. Both situations come with oscillations of the drop free surface. The physical origins of the internal mixing flow as well as the drop displacement and surface waves are still not well understood. In order to give insights of the underlying physics involved in these phenomena, we carried out an experimental and numerical study. The results suggest that the surface deformation of the drop can be related to a combination between acoustic streaming effect and radiation pressure inside the drop.
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Affiliation(s)
- P Brunet
- Institut d'Electronique de Microélectronique et de Nanotechnologies, UMR CNRS 8520, Cité Scientifique, Avenue Poincaré, BP 60069, 59652 Villeneuve d'Ascq, France.
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10
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Schreiber M, Ilamathi E, Wolfson M, Fender D, Mueller S, Baudoin M. Preliminary findings from the National Pre-ESRD Education Initiative. Nephrol News Issues 2000; 14:44-6. [PMID: 11933390] [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: 02/24/2023]
Abstract
Regardless of age or race, more patients preferred peritoneal dialysis (PD) than would be expected from the current ratio of patients treated with PD in the U.S. The percent of patients choosing PD seems to be largely influenced by the scope of information they receive prior to therapy initiation. In the absence of thorough treatment option education, a significant number of patients may be assigned a therapy when, in reality, they would have selected an alternative option. There is a need to further understand the correlation between a practice's PD utilization rate and the extent to which patients are given dialysis treatment options.
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Affiliation(s)
- M Schreiber
- Cleveland Clinic Foundation, Cleveland, OH, USA
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11
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Mayeaux EJ, Maddox SA, Baudoin M. Early removal of the Norplant System. J Am Board Fam Pract 1996; 9:215-9. [PMID: 8743236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- E J Mayeaux
- Department of Family Medicine, Louisiana State University Medical Center-Shreveport 71130-3932, USA
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12
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Larroche JC, Bethmann O, Baudoin M, Couchard M. Brain damage in the premature infant. Early lesions and new aspects of sequelae. Ital J Neurol Sci 1986; Suppl 5:43-52. [PMID: 3759408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
In spite of a significant decrease of the mortality and morbidity of neonates, cerebral damage in the premature infant remains the major concern for the neonatologist. Intraventricular hemorrhage (IVH) and necrosis of the white matter (leukomalacia) are the two main lesions. Early morphological aspects have been known for many years, but the use of computerized tomography (CT scan) and ultrasonography (US) through the anterior fontanelle have led to renewed interest and the general recognition of IVH. Localization, extent and frequency of the lesions can readily be established. However the early diagnosis of leukomalacia is still uncertain. Long survival, with mechanical ventilation of severely ill infants, has made it possible to follow the natural history of the lesions and has modified the relative frequency of their occurrence. Posthemorrhagic hydrocephalus, sclerosis of the centrum semiovale and multicystic encephalopathy are now commonly found at autopsy of infants who have survived for several weeks.
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MESH Headings
- Brain/pathology
- Brain Damage, Chronic/diagnosis
- Brain Damage, Chronic/epidemiology
- Brain Damage, Chronic/pathology
- Cerebral Hemorrhage/diagnosis
- Cerebral Hemorrhage/pathology
- Encephalomalacia/diagnosis
- Encephalomalacia/pathology
- Humans
- Infant, Newborn
- Infant, Premature, Diseases/diagnosis
- Infant, Premature, Diseases/epidemiology
- Infant, Premature, Diseases/pathology
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