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1.
Rev Epidemiol Sante Publique ; 66(1): 7-17, 2018 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-29233572

RESUMO

BACKGROUND: In a context of the evolution of severe morbidities in patients living with HIV (PLWH), the aim of this study was to describe reasons for hospitalization and the mode of care for the patients requiring hospitalization. METHODS: All admissions (≥24h) of PLWH to 10 hospitals in the south of Paris (COREVIH Ile-de-France Sud) between 1/1/2011 and 12/31/2011 were identified. The hospital database and the file of patients followed in the HIV referral department of each hospital were matched. Detailed clinical and biological data were collected, by returning to the individual medical records, for a random sample (65% of hospitalized patients). RESULTS: A total of 3013 hospitalizations (1489 patients) were recorded in 2011. The estimated rate of hospitalized patients was about 8% among the 10105 PLWH routinely managed in COREVIH Ile-de-France Sud in 2011. The majority (58.5%) of these hospitalizations occurred in a unit other than the HIV referral unit. Non-AIDS-defining infections were the main reason for admission (16.4%), followed by HIV-related diseases (15.6%), hepatic/gastrointestinal diseases (12.0%), and cardiovascular diseases (10.3%). The median length of stay was 5 days overall (IQR: 2-11), it was longer among patients admitted to a referral HIV care unit than to another ward. HIV infection had been diagnosed >10 years previously in 61.4% of these hospitalized patients. They often had associated comorbidities (coinfection HCV/HVB 40.5%, smoking 45.8%; hypertension 33.4%, dyslipidemia 28.8%, diabetes 14.8%). Subjects over 60 years old accounted for 15% of hospitalized patients, most of them were virologically controlled under HIV treatment, and cardiovascular diseases were their leading reason for admission. CONCLUSION: Needs for hospitalization among PLWH remain important, with a wide variety in causes of admission, involving all hospital departments. It is essential to prevent comorbidities to reduce these hospitalizations, and to maintain a link between the management of PLWH, that becomes rightly, increasing ambulatory, and recourse to specialized inpatient services.


Assuntos
Atenção à Saúde/estatística & dados numéricos , Infecções por HIV/epidemiologia , Necessidades e Demandas de Serviços de Saúde , Hospitalização/estatística & dados numéricos , Infecções Oportunistas Relacionadas com a AIDS/epidemiologia , Adulto , Comorbidade , Atenção à Saúde/normas , Feminino , Infecções por HIV/complicações , HIV-1 , Necessidades e Demandas de Serviços de Saúde/estatística & dados numéricos , Necessidades e Demandas de Serviços de Saúde/tendências , Departamentos Hospitalares/estatística & dados numéricos , Humanos , Tempo de Internação , Masculino , Pessoa de Meia-Idade , Paris/epidemiologia , Adulto Jovem
2.
Acta Trop ; 165: 26-32, 2017 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-27436811

RESUMO

This study was undertaken in the Province of Sidi Kacem in northwest Morocco between April 2010 and March 2011. The main objective of the study was to determine the prevalence of Echinococcus granulosus (Eg) infection in owned dogs. This province was selected as a case study because of the social conditions, geographic and climatic diversity making it a model representative of many parts of Morocco. The survey was carried out in 23 rural communes and in the 5 municipalities (urban districts) of the Province and sampling was undertaken in randomly selected households. A total of 273 owned dogs comprising 232 from the 23 rural communes (rural dogs) and 41 from the 5 municipalities (urban dogs) were tested. Arecoline hydrobromide purgation was selected as the diagnostic method of choice to enable visualisation of expelled worms by dog owners, thereby imparting messages on the transmission mode of Eg to humans and farm animals. Of the 273 dogs tested, purgation was effective in a total of 224 dogs (82.1%). The overall estimated prevalence of Eg infection was 35.3% (79/224, 95% CI 22.3-47.0%). Dogs inhabiting rural communes were at greater risk of infection (38.0%, 95% CI 31.1-45.3%) than dogs roaming in municipalities or urban areas (18.8%, 95% CI 7.2-36.4%) and the prevalence of infection was higher in those inhabiting rural communes with slaughterhouses (62.7%, 95% CI 48.1-75.9%) than in communes without (29.1%, 95% CI 21.7-37.2%). This first assessment of Eg infection in Sidi Kacem Province indicates a key role of rural slaughterhouses in parasite transmission to dogs.


Assuntos
Doenças do Cão/epidemiologia , Equinococose/veterinária , Echinococcus granulosus/isolamento & purificação , Animais , Doenças do Cão/transmissão , Cães , Equinococose/epidemiologia , Equinococose/transmissão , Humanos , Marrocos/epidemiologia , Prevalência , População Rural , Inquéritos e Questionários , População Urbana
3.
Br J Dermatol ; 175(6): 1251-1262, 2016 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-27177037

RESUMO

BACKGROUND: Recent studies have independently implicated the chemokine CXCL12 and its receptors, CXCR4 and CXCR7, in the pathophysiology of Kaposi sarcoma (KS). OBJECTIVES: We investigated whether the CXCL12/CXCR4-CXCR7 protein trio could constitute KS biomarkers. METHODS: Endothelial and spindle cells positive for CXCL12/CXCR4-CXCR7, human herpesvirus-8 latency-associated nuclear antigen (LANA), Ki67 antigen (proliferation) and vascular endothelial growth factor (VEGF) were quantitated in skin lesions from patients with AIDS-associated KS, patients with classic KS and patients with angiomas, using immunohistochemistry and quantitative image analysis (16, 21 and 20 skin lesions, respectively). Plasma CXCL12 concentrations were measured by enzyme-linked immunosorbent assay from 20 patients with AIDS-KS, 12 HIV-infected patients without KS and 13 healthy donors' samples. RESULTS: Cells positive for CXCL12, CXCR4, CXCR7, LANA, Ki67 and VEGF were significantly enriched in patients with AIDS-associated KS and classic KS vs. angiomas (P < 0·001), and in nodular vs. macular/papular KS lesions (P < 0·05). CXCL12, CXCR4 and CXCR7 detection correlated with LANA, Ki67 and VEGF detection (r > 0·4; P < 0·05). However, plasma CXCL12 concentrations did not differ between patients with AIDS-associated KS, HIV-infected patients without KS, and healthy donors. CONCLUSIONS: The CXCL12/CXCR4-CXCR7 trio is upregulated in KS and correlates with KS pathophysiological markers and the severity of skin lesions. Histological assessment of the CXCL12 axis could serve as a valuable biomarker for KS diagnosis and progression.


Assuntos
Biomarcadores Tumorais/metabolismo , Quimiocina CXCL12/metabolismo , Receptores CXCR4/metabolismo , Receptores CXCR/metabolismo , Sarcoma de Kaposi/metabolismo , Neoplasias Cutâneas/metabolismo , Adulto , Inibidores da Angiogênese/uso terapêutico , Antígenos Virais/metabolismo , Estudos de Casos e Controles , Feminino , Humanos , Lenalidomida , Masculino , Proteínas Nucleares/metabolismo , Talidomida/análogos & derivados , Talidomida/uso terapêutico , Fator A de Crescimento do Endotélio Vascular/metabolismo
4.
J Helminthol ; 90(3): 279-83, 2016 May.
Artigo em Inglês | MEDLINE | ID: mdl-25727141

RESUMO

The Echinococcus granulosus tapeworm is responsible for cystic echinococcosis (CE), a zoonotic disease with worldwide distribution. The life cycle of the parasite is mainly domestic and takes place between dogs and livestock species. A slaughterhouse survey was conducted in 2012 in the Republic of Moldova in order to estimate the prevalence of CE. A total of 1525 cattle, 5580 sheep and 12,700 pigs were surveyed. No CE infection was observed in pigs, while prevalence was estimated at 59.3% in cattle and 61.9% in sheep. Infection was significantly higher in animals raised in private households than in those from collective farms. The frequency of infection increased with age in both species. In cattle and in sheep, infection of both the liver and lungs was the most common, while infection in the lungs only was much less frequent. Farm type appears to be an important factor in CE infection in Moldova, due to the extensive farming and the home-slaughtering undertaken in the majority private sector, despite a high prevalence of CE also recorded in the public sector. The low fertility of cysts in cattle (1.1%) compared to sheep (47.6%) confirmed the maintenance of E. granulosus sensu stricto in a dog-sheep life cycle which excludes cattle. Further studies are needed to obtain a complete overview of the parasite's epidemiology in its intermediate and definitive hosts, in order to implement control and preventive measures, with specific attention given to farms in the private sector.


Assuntos
Matadouros , Doenças dos Bovinos/epidemiologia , Equinococose/veterinária , Echinococcus granulosus/isolamento & purificação , Doenças dos Ovinos/epidemiologia , Animais , Bovinos , Doenças dos Bovinos/parasitologia , Equinococose/epidemiologia , Moldávia/epidemiologia , Prevalência , Ovinos , Doenças dos Ovinos/parasitologia
5.
Ann Oncol ; 27(3): 397-408, 2016 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-26681686

RESUMO

Malignancies represent a major cause of morbidity and mortality in human immunodeficiency virus (HIV)-infected patients. The introduction of combined antiretroviral therapy has modified the spectrum of malignancies in HIV infection with a decreased incidence of acquired immunodeficiency syndrome (AIDS) malignancies such as Kaposi's sarcoma and non-Hodgkin's lymphoma due to partial immune recovery and an increase in non-AIDS-defining malignancies due to prolonged survival. Management of HIV-infected patients with cancer requires a multidisciplinary approach, involving both oncologists and HIV physicians to optimally manage both diseases and drug interactions between anticancer and anti-HIV drugs. The French CANCERVIH group presents here a review and an experience of managing non-AIDS malignancies in HIV-infected individuals.


Assuntos
Síndrome da Imunodeficiência Adquirida/tratamento farmacológico , Terapia Antirretroviral de Alta Atividade , Doença de Hodgkin/epidemiologia , Sarcoma de Kaposi/epidemiologia , Consenso , Prova Pericial , Doença de Hodgkin/terapia , Humanos , Prognóstico , Risco , Sarcoma de Kaposi/terapia
6.
Acta Trop ; 152: 17-25, 2015 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-26299194

RESUMO

Integrating the control of multiple neglected zoonoses at the community-level holds great potential, but critical data is missing to inform the design and implementation of different interventions. In this paper we present an evaluation of an integrated health messaging intervention, using powerpoint presentations, for five bacterial (brucellosis and bovine tuberculosis) and dog-associated (rabies, cystic echinococcosis and leishmaniasis) zoonotic diseases in Sidi Kacem Province, northwest Morocco. Conducted by veterinary and epidemiology students between 2013 and 2014, this followed a process-based approach that encouraged sequential adaptation of images, key messages, and delivery strategies using auto-evaluation and end-user feedback. We describe the challenges and opportunities of this approach, reflecting on who was targeted, how education was conducted, and what tools and approaches were used. Our results showed that: (1) replacing words with local pictures and using "hands-on" activities improved receptivity; (2) information "overload" easily occurred when disease transmission pathways did not overlap; (3) access and receptivity at schools was greater than at the community-level; and (4) piggy-backing on high-priority diseases like rabies offered an important avenue to increase knowledge of other zoonoses. We conclude by discussing the merits of incorporating our validated education approach into the school curriculum in order to influence long-term behaviour change.


Assuntos
Recursos Audiovisuais , Educação em Saúde/métodos , Disseminação de Informação/métodos , Doenças Negligenciadas/diagnóstico , Doenças Negligenciadas/tratamento farmacológico , Zoonoses/diagnóstico , Zoonoses/tratamento farmacológico , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Animais , Brucelose/diagnóstico , Brucelose/tratamento farmacológico , Brucelose/epidemiologia , Bovinos , Criança , Currículo , Cães , Equinococose/diagnóstico , Equinococose/tratamento farmacológico , Equinococose/epidemiologia , Feminino , Pessoal de Saúde/educação , Humanos , Masculino , Pessoa de Meia-Idade , Marrocos/epidemiologia , Doenças Negligenciadas/epidemiologia , Pais/educação , Raiva/diagnóstico , Raiva/tratamento farmacológico , Raiva/epidemiologia , Instituições Acadêmicas , Estudantes , Tuberculose Bovina/diagnóstico , Tuberculose Bovina/tratamento farmacológico , Tuberculose Bovina/epidemiologia , Adulto Jovem , Zoonoses/epidemiologia
7.
Ann Oncol ; 26(5): 958-966, 2015 May.
Artigo em Inglês | MEDLINE | ID: mdl-25632071

RESUMO

BACKGROUND: We undertook the present analysis to examine the shifting influence of prognostic factors in HIV-positive patients diagnosed with aggressive non-Hodgkin lymphoma (NHL) over the last two decades. PATIENTS AND METHODS: We carried out a pooled analysis from an existing database of patients with AIDS-related lymphoma. Individual patient data had been obtained prior from prospective phase II or III clinical trials carried out between 1990 until 2010 in North America and Europe that studied chemo(immuno)therapy in HIV-positive patients diagnosed with AIDS-related lymphomas. Studies had been identified by a systematic review. We analyzed patient-level data for 1546 patients with AIDS-related lymphomas using logistic regression and Cox proportional hazard models to identify the association of patient-, lymphoma-, and HIV-specific variables with the outcomes complete response (CR), progression-free survival, and overall survival (OS) in different eras: pre-cART (1989-1995), early cART (1996-2000), recent cART (2001-2004), and contemporary cART era (2005-2010). RESULTS: Outcomes for patients with AIDS-related diffuse large B-cell lymphoma and Burkitt lymphoma improved significantly over time, irrespective of baseline CD4 count or age-adjusted International Prognostic Index (IPI) risk category. Two-year OS was best in the contemporary era: 67% and 75% compared with 24% and 37% in the pre-cART era (P < 0.001). While the age-adjusted IPI was a significant predictor of outcome in all time periods, the influence of other factors waxed and waned. Individual HIV-related factors such as low CD4 counts (<50/mm(3)) and prior history of AIDS were no longer associated with poor outcomes in the contemporary era. CONCLUSIONS: Our results demonstrate a significant improvement of CR rate and survival for all patients with AIDS-related lymphomas. Effective HIV-directed therapies reduce the impact of HIV-related prognostic factors on outcomes and allow curative antilymphoma therapy for the majority of patients with aggressive NHL.


Assuntos
Fármacos Anti-HIV/uso terapêutico , Antineoplásicos/uso terapêutico , Infecções por HIV/terapia , Imunoterapia/métodos , Linfoma Relacionado a AIDS/terapia , Linfoma não Hodgkin/terapia , Adolescente , Adulto , Idoso , Fármacos Anti-HIV/efeitos adversos , Antineoplásicos/efeitos adversos , Distribuição de Qui-Quadrado , Ensaios Clínicos Fase II como Assunto , Ensaios Clínicos Fase III como Assunto , Bases de Dados Factuais , Progressão da Doença , Intervalo Livre de Doença , Europa (Continente) , Feminino , Infecções por HIV/diagnóstico , Infecções por HIV/imunologia , Infecções por HIV/mortalidade , Humanos , Imunoterapia/efeitos adversos , Estimativa de Kaplan-Meier , Modelos Logísticos , Linfoma Relacionado a AIDS/diagnóstico , Linfoma Relacionado a AIDS/imunologia , Linfoma Relacionado a AIDS/mortalidade , Linfoma não Hodgkin/diagnóstico , Linfoma não Hodgkin/imunologia , Linfoma não Hodgkin/mortalidade , Masculino , Pessoa de Meia-Idade , Análise Multivariada , América do Norte , Modelos de Riscos Proporcionais , Medição de Risco , Fatores de Risco , Fatores de Tempo , Resultado do Tratamento , Adulto Jovem
8.
Infect Genet Evol ; 22: 142-9, 2014 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-24468327

RESUMO

Alveolar echinococcosis, caused by the cestode Echinococcus multilocularis, is the most serious parasitic disease for humans in Europe, with a sylvatic life cycle generally between small rodents and red foxes. General expansion of the range of E. multilocularis has been observed across Europe over the last 15years. In France, a westward spread of the known endemic areas of the parasite was described recently. For genotyping, the microsatellite EmsB was used to trace expansion in five French areas. A total of 22 EmsB profiles were identified, with five similar to those previously described in other parts of Europe. An imbalance of genetic diversity was observed between the five areas which also revealed their interconnection with the presence of common profiles, notably the two main profiles both present in all regions except one in the North. These two findings are similar to those described at the European level, highlighting transmission of the parasite by a mainland-island system. A spatio-temporal scenario of the expansion of E. multilocularis can be proposed with spread from the French historical focus in eastern France to the Lorraine, the Champagne-Ardenne and finally the North, while simultaneously another expansion has occurred from the historical focus into the West. The colonization by the parasite into the West and North areas from the historical focus was probably due to the migration of foxes several decades ago. Recent detection of the parasite in new endemic "départements" may be due to more active research rather than a recent spread of the parasite. Regarding the numerous data obtained by the different EmsB analyses, principally across Europe, centralization of all the profiles described in a public databank appears necessary in order to obtain a precise understanding of transmission of the parasite from one country to another.


Assuntos
Equinococose/parasitologia , Equinococose/transmissão , Echinococcus multilocularis/classificação , Echinococcus multilocularis/genética , Animais , DNA de Helmintos/análise , Echinococcus multilocularis/isolamento & purificação , Raposas/parasitologia , França , Variação Genética
9.
Prev Vet Med ; 111(1-2): 147-55, 2013 Aug 01.
Artigo em Inglês | MEDLINE | ID: mdl-23642656

RESUMO

In Europe, most cities are currently colonized by red foxes (Vulpes vulpes), which are considered to be the main definitive host of the zoonotic cestode Echinococcus multilocularis. The risk of transmission to humans is of particular concern where high fox populations overlap with high human populations. The distribution of baits containing praziquantel has successfully reduced the infection pressure in rural areas and in small plots within large cities. The purpose of this study was to assess its efficiency in two medium size cities (less than 100,000 inhabitants) in areas of high human alveolar echinococcosis incidence. From August 2006 to March 2009, 14 baiting campaigns of praziquantel treatment were run in Annemasse and Pontarlier (Eastern France), each of which encompassed 33 km(2), with a density of 40 baits/km(2). The bait consumption appeared to be lower in strictly urban context compared to suburban areas (78.9% vs. 93.4%) and lower in Annemasse than in Pontarlier (82.2% vs. 89.5%). During our study, the prevalence of E. multilocularis, as assessed by EM-ELISA on fox faeces collected in the field in Annemasse, was lower within the treated area than in the rural control area. A "before/during" treatment comparison revealed a significant decrease of spring prevalence from 13.3% to 2.2%. No significant change in prevalence was detected in Pontarlier (stable prevalence: 9.1%) where the contamination of the treated area followed the temporal trend observed in the control area. There, a greater resilience of the parasite's life cycle, probably due to a strong pressure of recontamination from outside the treated area, may have counteracted the prophylaxis treatment. These contrasted outcomes suggest that the frequency of fox anthelmintic treatment should be adapted to the local situation.


Assuntos
Anti-Helmínticos/administração & dosagem , Anti-Helmínticos/economia , Equinococose Hepática/veterinária , Raposas , Praziquantel/administração & dosagem , Praziquantel/economia , Animais , Cidades , Equinococose , Equinococose Hepática/epidemiologia , Equinococose Hepática/parasitologia , Equinococose Hepática/prevenção & controle , Echinococcus multilocularis/fisiologia , Ensaio de Imunoadsorção Enzimática/veterinária , Fezes/parasitologia , França/epidemiologia , Humanos , Prevalência , Estações do Ano , Zoonoses/prevenção & controle
10.
Parasitol Res ; 112(4): 1809-12, 2013 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-23271567

RESUMO

Human cystic echinococcosis (hydatid disease) caused by the Echinococcus granulosus tapeworm continues to be a substantial cause of morbidity and mortality in many parts of the world. France is still considered as endemic area, but the current infestation by E. granulosus of intermediate hosts in France remains currently unknown due to the absence of official data reporting for the last 20 years. A 1-year prevalence survey was conducted in the 24 slaughterhouses of ten departments of the South of France. We demonstrate that the E. granulosus parasite is still currently present at low prevalence at slaughterhouses in the study area (4 cases for 100,000 sheep and 3 cases for 100,000 cattle). In addition, we assess the presence of genotype G1 in infected animals and identify for the first time in France genotypes G2 and G3 of E. granulosus sensu stricto.


Assuntos
Doenças dos Bovinos/epidemiologia , Equinococose/epidemiologia , Echinococcus granulosus/isolamento & purificação , Doenças dos Ovinos/epidemiologia , Animais , Bovinos , Doenças dos Bovinos/parasitologia , Estudos Transversais , DNA de Helmintos/química , DNA de Helmintos/genética , Equinococose/parasitologia , Echinococcus granulosus/classificação , Echinococcus granulosus/genética , França/epidemiologia , Genótipo , Dados de Sequência Molecular , Prevalência , Análise de Sequência de DNA , Ovinos , Doenças dos Ovinos/parasitologia
11.
Int J Tuberc Lung Dis ; 16(9): 1180-5, 2012 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-22794271

RESUMO

OBJECTIVE: To evaluate the potential of (18)F-fluoro-deoxyglucose positron emission tomography/computed tomography ((18)F-FDG PET/CT) for early therapeutic intervention in patients with probable or confirmed tuberculosis (TB). METHODS: Twenty-one consecutive human immunodeficiency virus negative patients were prospectively included. All patients underwent (18)F-FDG PET/CT before and after 1 month of anti-tuberculosis treatment. The maximum standardised uptake value (SUV(max)) of the most (18)F-FDG avid lesions was recorded. RESULTS: The median age of patients was 36 years (range 18-84); 33.3% were male, 80.9% were born in endemic countries, and 23.8% had a past history of TB. TB was confirmed on culture in 8, on histology in 9 and on the basis of clinical symptoms in 4 patients. (18)F-FDG PET/CT detected active pulmonary TB (n = 1), extra-pulmonary (n = 10) or both (n = 10). The second (18)F-FDG PET/CT showed reduced radiotracer uptake intensity in 19 of 21 patients, with a median percentage decrease of SUV(max) of 31% (range 2-84). Two patients showed no improvement. TB was ruled out in one patient during follow-up; the final diagnosis was a non-Hodgkin's lymphoma. The other patient was smear-positive for 3 months. CONCLUSION: (18)F-FDG PET/CT allows an easy evaluation of early therapeutic response in patients with TB, particularly extra-pulmonary TB.


Assuntos
Antituberculosos/uso terapêutico , Fluordesoxiglucose F18 , Imagem Multimodal , Tomografia por Emissão de Pósitrons , Compostos Radiofarmacêuticos , Tomografia Computadorizada por Raios X , Tuberculose/diagnóstico por imagem , Tuberculose/tratamento farmacológico , Imagem Corporal Total , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , França/epidemiologia , Humanos , Masculino , Pessoa de Meia-Idade , Valor Preditivo dos Testes , Estudos Prospectivos , Fatores de Tempo , Resultado do Tratamento , Tuberculose/etnologia , Tuberculose Pulmonar/diagnóstico por imagem , Tuberculose Pulmonar/tratamento farmacológico , Adulto Jovem
12.
HIV Med ; 13(8): 479-87, 2012 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-22414000

RESUMO

BACKGROUND: AIDS-related lymphoma (ARL) remains the main cause of AIDS-related deaths in the combined antiretroviral therapy (cART) era. Although most ARLs are associated with the Epstein-Barr virus (EBV), whether patients with high EBV burden are more at risk of developing ARL is unknown. This study investigated the relationship between high blood EBV DNA loads and subsequent progression to ARL. METHODS: We identified 43 cases of ARL diagnosed between 1988 and 2007 within two cohorts (ANRS SEROCO/HEMOCO and PRIMO) and for which stored serum and peripheral blood mononuclear cell (PBMC) samples were available within 3 years before ARL diagnosis. For each case, two controls matched for the cohort and CD4 cell count in the year of ARL diagnosis were selected. EBV DNA was measured in PBMCs and serum samples with a commercial kit. RESULTS: High levels of EBV DNA in PBMCs collected a median of 10 months before diagnosis were associated with an increased risk of developing systemic B lymphoma (adjusted odds ratio 2.47; 95% confidence interval 1.15; 5.32 for each 1 log copies/10(6) PBMC increase in EBV load) but not with primary brain lymphoma. CONCLUSION: In this study, HIV-infected patients with undetectable EBV DNA in PBMCs did not develop ARL in the following 3 years, while high levels of EBV DNA in PBMCs predicted subsequent progression to systemic B lymphoma. Clinicians should be aware of the increased risk of developing systemic B lymphoma in HIV-infected patients with a high blood EBV DNA load.


Assuntos
DNA Viral/sangue , Infecções por HIV/virologia , Herpesvirus Humano 4/isolamento & purificação , Linfoma Relacionado a AIDS/virologia , Linfoma de Células B/virologia , Adulto , Estudos de Casos e Controles , Estudos de Coortes , Progressão da Doença , Feminino , Infecções por HIV/sangue , Infecções por HIV/complicações , Herpesvirus Humano 4/genética , Humanos , Linfoma Relacionado a AIDS/complicações , Masculino , Razão de Chances , Carga Viral
13.
Exp Parasitol ; 128(1): 57-60, 2011 May.
Artigo em Inglês | MEDLINE | ID: mdl-21256846

RESUMO

A modified Segmental Sedimentation and Counting Technique (SSCT) to examine the presence of Echinococcus multilocularis helminths in segments of fox (Vulpes vulpes) intestine is described and compared to the "gold standard", SCT. Out of the 358 intestines collected, 117 were E. multilocularis positive. Using SSCT methods we compare the sensitivity of individual or pairs of segments to establish a tradeoff between saving time and the reliability of the diagnosis, especially in areas with low infection intensities. The results show that the analysis of segment S4 associated with segment S1 or S2 give 98.3% sensitivity, with specificity close to 100%. Based on our results and the time saved, we recommend using SSCT for routine examination of fox intestines for large epidemiological studies, particularly where the endemic prevalence of E. multilocularis is low or unknown.


Assuntos
Equinococose/veterinária , Echinococcus multilocularis/isolamento & purificação , Raposas/parasitologia , Enteropatias Parasitárias/veterinária , Intestinos/parasitologia , Animais , Equinococose/diagnóstico , Equinococose/parasitologia , Echinococcus multilocularis/crescimento & desenvolvimento , Enteropatias Parasitárias/diagnóstico , Enteropatias Parasitárias/parasitologia , Sensibilidade e Especificidade
14.
Int J Parasitol ; 41(2): 145-54, 2011 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-20833171

RESUMO

Urbanisation of alveolar echinococcosis is a new phenomenon that has been highlighted during the last few decades. It has thus become necessary to understand the dynamics of transmission of Echinococcus multilocularis in urbanised areas. Spatial heterogeneity of infection by E. multilocularis has been explained as the result of a multifactorial dependence of the transmission in which the factors depend on the scale of the investigation. The aim of this study was to assess, in an urbanised area, the effect of such environmental factors as season, habitat type and the level of urbanisation, on the availability of two major intermediate hosts (Microtus spp. and Arvicola terrestris), the distribution of red fox faeces and the distribution of E. multilocularis as determined by detection of coproantigens in faeces. Results of the study revealed higher densities of Microtus spp. in rural than in peri-urban areas. Moreover this species was highly aggregated in urban wasteland. Arvicola terrestris densities did not appear to be linked to the level of urbanisation or to the type of habitat studied. Distribution of faeces was positively linked to distance walked and to Microtus spp. and A. terrestris distributions whatever the level of urbanisation. Such a distribution pattern could enhance the transmission cycle in urban areas. The Copro-ELISA test results on faeces collected in the field revealed that ODs were significantly negatively correlated with the abundance of A. terrestris. The larger population densities of Microtus spp. found in urban wastelands and the well known predominance of Microtus spp. in the red fox diet in the region suggest that Microtus spp. may play a key role in urban transmission of the parasite in the study area.


Assuntos
Arvicolinae , Comportamento Animal , Defecação , Equinococose/transmissão , Echinococcus multilocularis/isolamento & purificação , Fezes/parasitologia , Raposas/fisiologia , Animais , Cidades , Demografia
15.
Parasite ; 15(1): 77-85, 2008 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-18416250

RESUMO

This study evaluated the impact of biological and environmental factors on the infection of red foxes (Vulpes vulpes) by Echinococcus multilocularis in an endemic area of north-east France. From January 2004 to April 2006, 127 foxes were examined for E. multilocularis and their stomach contents analysed. The effect of year, season, age, sex and urbanisation level on E. multilocularis presence was estimated using a General Linear Model (GLM) with logit link, (i.e. logistic regression). Urbanisation level was the only influencing factor, with a decreasing gradient from rural [54%, CI 95% (40-68)] to peri-urban [31%, CI 95% (15-52)] and urban area [4%, CI 95% (0.7-15)]. The consumption of Arvicola terrestris and Microtus sp., grassland species, the main presumed intermediate hosts of E. multilocularis, was studied by the same approach. The two species were consumed less in the urban area and more in autumn than in spring. Anthropogenic food consumption was linked to urbanisation and to age. The frequency of anthropogenic food consumption decreased in the rural area. A global model explaining the presence of E. multilocularis and including urbanisation level and diet was then elaborated. Independently of urbanisation, there was a suggestion of less E. multilocularis infection with anthropogenic food consumption. Red foxes consuming Microtus sp. and A. terrestris had higher worm burden than those that did not. The results suggest that the decreasing gradient observed from rural to urban area is linked to behaviour and feeding habits.


Assuntos
Equinococose/veterinária , Echinococcus multilocularis/isolamento & purificação , Comportamento Alimentar , Raposas/parasitologia , Fatores Etários , Animais , Equinococose/epidemiologia , Echinococcus multilocularis/crescimento & desenvolvimento , Feminino , França/epidemiologia , Masculino , Fatores de Risco , População Rural , Estações do Ano , Fatores Sexuais , População Urbana
17.
J Immunol Methods ; 318(1-2): 1-10, 2007 Jan 10.
Artigo em Inglês | MEDLINE | ID: mdl-17166510

RESUMO

This paper reports a new ELISA to measure the level of rabies anti-glycoprotein G antibodies after vaccination. The Platelia Rabies II kit was evaluated on different populations of dogs, cats and foxes. For each target species, sera from naive, unvaccinated and vaccinated animals were tested. Platelia Rabies II results were compared to the reference fluorescent antibody virus neutralisation test (for dogs and cats) and to a published in house ELISA test (for foxes). The Platelia Rabies II test was found to be highly specific whatever the species (more than 98%) using a cut-off value of 0.5 EU/ml. The index of sensitivity was between 92.4% and 94.5% for fox samples, and reached 83% for domestic carnivores. Data collected by testing field samples revealed that the rate of false negative results ranged between 8.9% and 11.1% and the rate of false positive results ranged between 1% and 2% for the dog/cat population. Therefore, the Platelia Rabies II test described here would be a good candidate for routine detection of rabies antibodies not only in domestic carnivores (within the framework of international trade) but also in foxes for the follow up of rabies oral vaccination programs.


Assuntos
Animais Domésticos/imunologia , Animais Selvagens/imunologia , Anticorpos Antivirais/sangue , Carnívoros/imunologia , Vacina Antirrábica/imunologia , Animais , Gatos , Cães , Ensaio de Imunoadsorção Enzimática/métodos , Reações Falso-Negativas , Reações Falso-Positivas , Raposas , Glicoproteínas/imunologia , Testes de Neutralização/métodos , Curva ROC , Raiva/diagnóstico , Raiva/imunologia , Raiva/prevenção & controle , Vírus da Raiva/imunologia , Kit de Reagentes para Diagnóstico/normas , Reprodutibilidade dos Testes , Sensibilidade e Especificidade , Testes Sorológicos/métodos , Proteínas do Envelope Viral/imunologia
18.
Kidney Int ; 69(12): 2251-60, 2006 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-16672913

RESUMO

Minimal change nephrotic syndrome (MCNS) is described as a paraneoplastic manifestation of classical Hodgkin's lymphoma (cHL). We reassessed the pathophysiological and clinical significance of this association. A retrospective study was performed to evaluate a cohort of adult patients who developed MCNS and cHL. Twenty-one patients recruited in 15 French centers were analyzed. cHL was associated with inflammatory and general symptoms in most cases. The morphological subtype was predominantly nodular sclerosis (71.4%). MCNS appeared before the diagnosis of lymphoma in eight patients (38.1%) and in this case, it was characterized by a nephrotic syndrome (NS) frequently resistant (50%) or dependent (12.5%) to steroid treatment. Interestingly, diagnosis (3-120 months after MCNS) and effective treatment of the hemopathy were associated with the disappearance of the MCNS. cHL was diagnosed before MCNS in nine patients (42.9%), and in this case, glomerulopathy was associated with cHL relapse in 55.5% of cases. In four patients (19%), the two diseases occurred simultaneously. Extensive immunohistochemical study of lymph nodes was performed in eight patients and did not reveal particular features. In conclusion, MCNS associated with cHL is frequently dependent or resistant to steroid regimen, but remission of NS is obtained with the cure of lymphoma.


Assuntos
Doença de Hodgkin/patologia , Nefrose Lipoide/fisiopatologia , Adolescente , Adulto , Idoso , Estudos de Coortes , Comorbidade , Citocinas/fisiologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , NF-kappa B/fisiologia , Nefrose Lipoide/tratamento farmacológico , Nefrose Lipoide/epidemiologia , Estudos Retrospectivos , Fatores de Risco , Linfócitos T/patologia , Fatores de Tempo
20.
Blood ; 98(8): 2339-44, 2001 Oct 15.
Artigo em Inglês | MEDLINE | ID: mdl-11588028

RESUMO

HIV infection is associated with a high incidence of AIDS-related lymphomas (ARLs). Since the use of highly active antiretroviral therapy (HAART), the incidence of AIDS-defining illnesses has decreased, leading to a significant improvement in survival of HIV-infected patients. The consequences of HAART use on ARL are under debate. This study compared the incidence and the characteristics of ARL before and after the use of HAART in a large population of HIV-infected patients in the French Hospital Database on HIV (FHDH) and particularly in 3 centers including 145 patients with proven lymphoma. Within the FHDH, the incidence of systemic ARL has decreased between 1993-1994 and 1997-1998, from 86.0 per 10 000 to 42.9 per 10 000 person-years (P < 10(-30)). The incidence of primary brain lymphoma has also fallen dramatically between the periods, from 27.8 per 10 000 to 9.7 per 10 000 person-years (P < 10(-11)). The analysis of 145 cases of ARL in 3 hospitals showed that known HIV history was longer in the second period than in the first period among patients with systemic ARL (98 versus 75 months; P <.01). Patients had a higher number of CD4 cells at diagnosis during the second period (191 versus 63/microL, P = 10(-3)). Survival of patients with systemic ARL also increased between the periods (from 6 to 20 months; P =.004). Therefore, the profile of ARL has changed since the era of HAART, with a lower incidence of systemic and brain ARL. The prognosis of systemic ARL has improved.


Assuntos
Terapia Antirretroviral de Alta Atividade , Linfoma Relacionado a AIDS/prevenção & controle , Contagem de Linfócito CD4 , Estudos de Coortes , Bases de Dados como Assunto , Feminino , França/epidemiologia , HIV/isolamento & purificação , Humanos , Incidência , Linfoma Relacionado a AIDS/epidemiologia , Linfoma Relacionado a AIDS/mortalidade , Masculino , Estudos Retrospectivos , Fatores de Risco , Comportamento Sexual , Abuso de Substâncias por Via Intravenosa , Taxa de Sobrevida , Fatores de Tempo , Carga Viral
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