Network


Latest external collaboration on country level. Dive into details by clicking on the dots.

Hotspot


Dive into the research topics where Amanda Lopes is active.

Publication


Featured researches published by Amanda Lopes.


Medicine | 2016

Etiologies and Management of Aseptic Meningitis in Patients Admitted to an Internal Medicine Department

Irène Jarrin; Pierre Sellier; Amanda Lopes; Marjolaine Morgand; Tamara Makovec; Véronique Delcey; Karine Champion; Guy Simoneau; Andrew Green; Stéphane Mouly; Jean-François Bergmann; Célia Lloret-Linares

AbstractSeveral studies have focused on the clinical and biological characteristics of meningitis in order to distinguish between bacterial and viral meningitis in the emergency setting. However, little is known about the etiologies and outcomes of aseptic meningitis in patients admitted to Internal Medicine.The aim of the study is to describe the etiologies, characteristics, and outcomes of aseptic meningitis with or without encephalitis in adults admitted to an Internal Medicine Department.A retrospective cohort study was conducted in the Internal Medicine Department of the Lariboisière Hospital in Paris, France, from January 2009 to December 2011. Clinical and biological characteristics of aseptic meningitis were recorded. These included cerebrospinal fluid analysis, results of polymerase chain reaction testing, final diagnoses, and therapeutic management.The cohort included 180 patients fulfilling the criteria for aseptic meningitis with (n = 56) or without (n = 124) encephalitis. A definitive etiological diagnosis was established in 83 of the 180 cases. Of the cases with a definitive diagnosis, 73 were due to infectious agents, mainly enteroviruses, Herpes Simplex Virus 2, and Varicella Zoster Virus (43.4%, 16.8%, and 14.5% respectively). Inflammatory diseases were diagnosed in 7 cases. Among the 97 cases without definitive diagnoses, 26 (26.8%) remained free of treatment throughout their management whereas antiviral or antibiotic therapy was initiated in the emergency department for the remaining 71 patients. The treatment was discontinued in only 10 patients deemed to have viral meningitis upon admission to Internal Medicine.The prevalence of inflammatory diseases among patients admitted to internal medicine for aseptic meningitis is not rare (4% of overall aseptic meningitis). The PCR upon admission to the emergency department is obviously of major importance for the prompt optimization of therapy and management. However, meningitis due to viral agents or inflammatory diseases could also be distinguished according to several clinical and biological characteristics highlighted in this retrospective study. As recommendations are now available concerning the prescriptions of antiviral agents in viral meningitis, better therapeutic management is expected in the future.


Liver International | 2015

Therapeutic management and evolution of chronic hepatitis B: does HIV still have an impact? The EPIB 2012 study

Lionel Piroth; Stanislas Pol; Patrick Miailhes; Karine Lacombe; Amanda Lopes; Aurélie Fillion; V. Loustaud-Ratti; Françoise Borsa‐Lebas; Dominique Salmon; Eric Rosenthal; Fabrice Carrat; Patrice Cacoub

To compare the management of chronic hepatitis B (CHB) and its evolution over time in currently followed HIV‐positive and HIV‐negative patients.


Liver International | 2015

Untreated highly viraemic pregnant women from Asia or sub‐Saharan Africa often transmit hepatitis B virus despite serovaccination to newborns

Pierre Sellier; Sarah Maylin; Rishma Amarsy; Marie-Christine Mazeron; Lucile Larrouy; Stéphanie Haïm-Boukobza; Amanda Lopes; Maria-Dolores Moreno; Aude Ricbourg; Guy Simoneau; Jean-Dominique Magnier; Sophie Mercier-Delarue; Véronique Delcey; John M. Evans; Emmanuelle Cambau; Emmanuel Barranger; François Simon; Jean-François Bergmann

Mother‐to‐child (MTC) hepatitis B virus (HBV) transmission has been mainly studied in Asia. The geographical origins of women and HBV genotypes differ in Europe. The aims were to determine the rate and risk factors of MTC HBV transmission from women with high HBV DNA loads in a maternity hospital in Paris, France.


European Journal of Gastroenterology & Hepatology | 2017

Prospective interventional study of tenofovir in pregnancy to prevent vertical transmission of hepatitis B in highly viremic women

Pierre O. Sellier; Sarah Maylin; Béatrice Berçot; Dorothée Chopin; Amanda Lopes; Guy Simoneau; John Evans; Véronique Delcey; Jean-Louis Benifla; François Simon; Jean-François Bergmann

Background The risk of vertical transmission of hepatitis B virus (HBV) increases as maternal HBV DNA increase, despite serovaccination to newborns. Methods From 1 July 2012 to 1 January 2016, all pregnant women in Lariboisiere Hospital, Paris, France, with HBV DNA of 5 log10 IU/ml and above were administered tenofovir from week 28 of pregnancy until delivery. HBV DNA was measured at months 1, 2 of tenofovir and at delivery. The newborns were serovaccinated, tested for hepatitis B surface antigen, hepatitis B core antibody (HBcAb)±HBV DNA, and hepatitis B surface antibody (HBsAb) when aged 9 months, and then 24 months. This study was registered in http://www.ClinicalTrials.gov (NCT02039362). Results Thirty-one women gave birth to 37 newborns. Maternal HBV DNA at baseline was 8.23 log10 IU/ml and above in 12 pregnancies. The mean (median) HBV DNA were 4.4±1.2 (4.8), 3.3±1.7 (3.8), and 2.1±1.9 (2.0) log10 IU/ml at months 1, 2 of tenofovir and at delivery, respectively. Twenty-seven newborns were followed up: none of the 19 children aged 9 months or older was positive for hepatitis B surface antigen when aged 9 months; 14 children tested positive for HBcAb (probably transferred maternal antibodies, not found when aged 24 months) and for HBsAb without HBV DNA. Four of the 19 children showed HBsAb without HBcAb, the last being doubtful for HBcAb and HBsAb without HBV DNA. Eight newborns aged less than 9 months were not tested. Conclusion Tenofovir from week 28 of pregnancy to highly viremic HBV women plus serovaccination to newborns could prevent chronic and past infection.


European Journal of Gastroenterology & Hepatology | 2016

Short article: Hepatitis B virus status in children born to HIV/HBV coinfected women in a French hospital: a cross-sectional study.

Pierre Sellier; Nathalie Schnepf; Rishma Amarsy; Sarah Maylin; Amanda Lopes; Marie-Christine Mazeron; Clara Flateau; Marjolaine Morgand; Nicole Ciraru-Vigneron; Aurore Berthe; Guy Simoneau; John M. Evans; Safia Souak; Sophie Matheron; Jean-Louis Benifla; François Simon; Jean-François Bergmann

Objectives We assessed hepatitis B virus (HBV) status in children born to HIV/HBV coinfected women with large access to antiretroviral therapy. Methods All HIV/HBV coinfected pregnant women from 01 January 2000 to 01 January 2012 were included in the retrospective study (NCT02044068). Antiretroviral therapy during pregnancy and injection of HBV immunoglobulin/vaccine to newborns was recorded. We assessed HBV status of children aged at least 2 years. Results Twenty-one women (35 children) were studied. Twenty-six children (74%) had HBsAb: 22 had received immunoglobulin and 24 had received a complete vaccine (with immunoglobulin in 21 cases); their mothers had been administered lamivudine or tenofovir/emtricitabine during eight and nine pregnancies, respectively. Eight children (23%) were negative for HBsAg, HBsAb, and HBcAb: four (11.5%) had received immunoglobulin and a complete vaccine; in two children, it was not known whether they had received an immunoglobulin injection; in one child, the vaccine was incomplete; and in the last one, it was not known whether he had received immunoglobulin/vaccine. Their mothers had been administered lamivudine or tenofovir/emtricitabine during five and two pregnancies, respectively. No infant has chronic HBV infection (HBsAg) after prenatal mothers’ antiretroviral therapy combined with a complete postnatal HBV protection. One child had HBcAb and HBsAb: it was not known whether she had received an immunoglobulin injection; the vaccine was incomplete. The mother had been administered lamivudine during the last trimester of pregnancy. Conclusion Antiretroviral therapy in HBV/HIV coinfected women following current national HBV guidelines may prevent mother-to-child-transmission of HBV. Negativity of surrogate markers of vaccine-induced protection is frequent; large studies on long-term protection are needed.


Liver International | 2018

Hepatitis B Virus-Hepatitis D Virus mother-to-child co-transmission: A retrospective study in a developed country

Pierre O. Sellier; Sarah Maylin; Ségolène Brichler; Béatrice Berçot; Amanda Lopes; Dorothée Chopin; Manuela Pogliaghi; Anne-Lise Munier; Véronique Delcey; Guy Simoneau; John Evans; Emmanuel Gordien; François Simon; Jean-François Bergmann

Hepatitis B Virus (HBV) DNA during chronic infection can reach levels at which mother‐to‐child (MTC) transmission frequently occurs despite passive‐active immunization of newborns. Hepatitis D Virus (HDV) RNA can reach high levels, we assessed HBV/HDV MTC co‐transmission.


Medicine | 2016

Outcome of endoscopy-negative iron deficiency anemia in patients above 65: A longitudinal multicenter cohort.

Raphaël Clere-Jehl; Erik Sauleau; Stefan Ciuca; Mickaël Schaeffer; Amanda Lopes; Bernard Goichot; Thomas Vogel; Georges Kaltenbach; Eric Bouvard; Jean-Louis Pasquali; Daniel Sereni; Emmanuel Andrès; Anne Bourgarit

AbstractAfter the age of 65 years, iron deficiency anemia (IDA) requires the elimination of digestive neoplasia and is explored with upper and lower gastrointestinal (GI) endoscopy. However, such explorations are negative in 14% to 37% of patients. To further evaluate this issue, we evaluated the outcomes of patients aged over 65 years with endoscopy-negative IDA.We retrospectively analyzed the outcomes of in-patients over the age of 65 years with IDA (hemoglobin <12 g/dL and ferritin <70 &mgr;g/L) who had negative complete upper and lower GI endoscopies in 7 tertiary medical hospitals. Death, the persistence of anemia, further investigations, and the final diagnosis for IDA were analyzed after at least 12 months by calling the patients’ general practitioners and using hospital records.Between 2004 and 2011, 69 patients (74% women) with a median age of 78 (interquartile range (IQR) 75–82) years and hemoglobin and ferritin levels of 8.4 (IQR 6.8–9.9) g/dL and 14 (IQR 8–27) &mgr;g/L, respectively, had endoscopy-negative IDA, and 73% of these patients received daily antithrombotics. After a follow-up of 41 ± 22 months, 23 (33%) of the patients were dead; 5 deaths were linked with the IDA, and 45 (65%) patients had persistent anemia, which was significantly associated with death (P = 0.007). Further investigations were performed in 45 patients; 64% of the second-look GI endoscopies led to significant changes in treatment compared with 25% for the capsule endoscopies. Conventional diagnoses of IDA were ultimately established for 19 (27%) patients and included 3 cancer patients. Among the 50 other patients, 40 (58%) had antithrombotics.In endoscopy-negative IDA over the age of 65 years, further investigations should be reserved for patients with persistent anemia, and second-look GI endoscopy should be favored. If the results of these investigations are negative, the role of antithrombotics should be considered.


Journal of the International AIDS Society | 2014

Hepatitis B virus (HBV) status of children born to HIV/HBV co-infected women in a French hospital: a cross-sectional study

Pierre Sellier; Nathalie Schnepf; Rishma Amarsy; Sarah Maylin; Martin Coutellier; Amanda Lopes; Marie-Christine Mazeron; Clara Flateau; Marjolaine Morgand; Nicole Ciraru-Vigneron; Aurore Berthe; Aude Ricbourg; Anne-Marie Dolores-Moreno; Guy Simoneau; John M. Evans; Safia Souak; Sophie Matheron; Stéphane Mouly; Jean-Louis Benifla; François Simon; Jean-François Bergmann

Human Immunodeficiency Virus (HIV) Mother‐To‐Child‐Transmission (MTCT) and prevention by combined antiretroviral therapy (cART) have been extensively studied. Hepatitis B Virus (HBV) MTCT from HIV/HBV co‐infected women and prevention by antiretroviral therapy with dual activity have been poorly studied. The aim of the study was to assess HBV MTCT from HIV/HBV co‐infected women in a developed country with a large access to cART.


Presse Medicale | 2018

Acceptability and feasibility of HIV testing in general medicine by ELISA or rapid test from finger-stick whole blood

Hubert Demorat; Amanda Lopes; Dorothée Chopin; Véronique Delcey; Philippe Clevenbergh; Guy Simoneau; John M. Evans; Stéphane Mouly; Jean-François Bergmann; Pierre Sellier

OBJECTIVES Guidelines recommend routine universal HIV testing in adults to reduce the pool of infected patients unaware of their status, without specific recommendations concerning the method. We compared acceptability and feasibility of HIV testing by ELISA tests or rapid tests from finger-stick whole blood. METHODS Prospective randomized multi-center study comparing acceptability and feasibility of routine universal HIV testing by ELISA tests, with a charge, subsequently reimbursed by Social Security for affiliated patients, or rapid tests from finger-stick whole blood, without any charge from the patients or the general practitioner for the study. A single investigator performed all interventions. After consent, all adults (18-70 years old) consulting their general practitioner in Paris, France, unaware of their status, were enrolled. Testing was performed immediately for the patients in the rapid test arm; a prescription was given for testing in a lab for the patients in the ELISA arm. The primary endpoint was acceptability of each method. The secondary endpoint was feasibility of each method, assessed one month after the consultation. RESULTS Two hundred and seventy patients were enrolled: 133 patients in the ELISA arm, 137 in the rapid test arm. Acceptability of the rapid test (92%) was higher than that of the ELISA (63.9%), P<0.0001. Feasibility of the rapid test (100%) was higher than that of the ELISA (50.5%), P<0.0001. A center effect was shown concerning feasibility of ELISA but not concerning feasibility of rapid tests. CONCLUSION Rapid testing from finger-stick whole blood is more acceptable and feasible than ELISA for routine universal HIV testing. A larger use of rapid tests, ideally free of charge, by general practitioners could reduce the pool of infected patients unaware of their status.


Therapie | 2017

Effect of body weight and composition on efavirenz, atazanavir or darunavir concentration

Célia Lloret-Linares; Yasmin Rahmoun; Amanda Lopes; Dorothée Chopin; Guy Simoneau; Andrew Green; Brigitte Delhotal; Hélène Sauvageon; Stéphane Mouly; Jean-François Bergmann; Pierre-Olivier Sellier

BACKGROUND To compare the steady state plasma concentrations (Css) of three antiretroviral drugs in both normal and overweight patients, and to determine the relationship between Css and fat mass (FM) or lean body mass. METHODS Patients treated for more than 6 months once daily with one of the antiretroviral drugs: efavirenz (EFV) 600mg, atazanavir boosted with ritonavir (ATV-r) 300mg/100mg, or darunavir boosted with ritonavir (DRV-r) 800mg/100mg, combined with two nucleoside analogues, were enrolled prospectively. One at steady state, plasma samples for the assessment of drug concentration were taken and body composition was assessed by bioelectrical impedance. RESULTS One hundred and thirty-nine patients were enrolled (46, 45 and 48 in the groups EFV, ATV-r and DRV-r respectively). Their mean age was 46.2±10.4 years, 58% were male, 55.4% were from Sub Sahara African (SSA); body mass index (BMI) was 25.4±4.4kg/m2. Mean drug plasma Css of the three drugs did not differ according to BMI group. DRV-r Css tended to be higher in patients with BMI≥25kg/m2 (2896.7±1689 versus 2091.9±1038, P=0.09) and was significantly correlated with FM (r=0.3, P=0.02). In subgroup analysis, the effect of FM on DRV-r Css was significant in patients from SSA (r=0.4, P=0.04). CONCLUSIONS Css result from many factors and body composition has been shown to only weakly influence interindividual variability but should be investigated in morbidly obese patients treated with DRV-r.

Collaboration


Dive into the Amanda Lopes's collaboration.

Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar

John M. Evans

George Washington University

View shared research outputs
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Researchain Logo
Decentralizing Knowledge