Wolbachia infection in natural mosquito populations from Argentina.

The increasing spread of mosquito vectors has made mosquito-borne arboviral diseases a global threat to public health, leading to the urgent need for effective population control methods. Strategies based in the intracellular bacterium Wolbachia Hertig, 1936 are considered environmentally friendly, safe for humans, and potentially cost-effective for controlling arboviral diseases. To minimize undesirable side effects, it is relevant to assess whether Wolbachia is present in the area and understand the diversity associated with native infections before implementing these strategies. With this purpose, we investigated Wolbachia infection status, diversity, and prevalence in populations of Aedes albifasciatus (Macquart, 1838), Aedes fluviatilis (Lutz, 1904), and hybrids of the Culex pipiens (Linnaeus, 1758) complex from Argentina. Aedes albifasciatus and C. pipiens complex samples were collected in the province of Buenos Aires, and A. fluviatilis in the province of Misiones. Aedes albifasciatus was found to be uninfected, while infections with strains wFlu and wPip were detected in A. fluviatilis and hybrids of the C. pipiens complex, respectively. All strains were fixed or close to fixation and clustered within supergroup B. These finding provides valuable information on Wolbachia strains found in natural mosquito populations in Argentina that might be used in heterologous infections in the future or be considered when designing control strategies based on Wolbachia infection.

Carexrecondita Muñoz-Schüler, Martín-Bravo & Jim.Mejías (Carex section Junciformes Kük., Cyperaceae), a new sedge species from the Andes of central Chile.

CarexsectionJunciformes is one of the most diverse groups of the genus in South America, consisting of approximately 30 species. Here we describe a new species, Carexrecondita, belonging to this section. We studied its placement within a molecular phylogeny of the group and found it to constitute an independent lineage. The new species is morphologically very close to C.austroamericana, from southern Patagonia, despite being phylogenetically divergent to the rest of Patagonian species of sect. Junciformes. So far, this species is known only from a few specimens recently collected in its type locality, despite growing in a well-collected area in the Andes of Metropolitana Region of Santiago, the most populated administrative region of Chile. We provide a detailed morphological description, comments on its relationship with other Southern Cone species of sect. Junciformes and relevant ecological notes.

Longevity of composite restorations in posterior teeth placed by dental students: a 12-year retrospective study.

OBJECTIVES: To evaluate the longevity of resin composite restorations placed in posterior teeth by dental students, using data from electronic records from 2008 to 2019. MATERIALS AND METHODS: Demographic (gender and age) and clinical variables (dental group, position in dental arch, and the number of restored surfaces) were evaluated. The 5-year follow-up was assessed according to the day the restoration was placed. Kaplan-Meier curves were generated to calculate the annual failure rate. Data were analyzed by Chi-Square, Kruskal-Wallis, and Mann-Whitney tests (α = 0.05). RESULTS: In total, 3.883 records relative to return periodicity were analyzed. The final sample consisted of 900 restorations from 479 patients. The majority were females, aged between 31 and 60. In total, 256 failures were reported (success rate = 78%), showing an annual failure rate of 2.05%. The main reasons for failures were restoration replacement (55.5%), endodontics (21.9%), prosthetics (14.5%) and extraction (8.2%). There was a higher risk of failure in restorations involving three or more surfaces (p = 0.000) and in patients over 60 years (p < 0.001). In females (p = 0.030), molars (p = 0.044), and maxillary teeth (p = 0.038) failed in a shorter time. CONCLUSIONS: Resin composite restorations placed in permanent posterior teeth by dental students had high survival rates. The main reason for failure was the replacement of restorations. The age group and the number of restored surfaces significantly affected the success of the restorations. CLINICAL RELEVANCE: The electronic health records over 12 years showed that 78% of the resin restorations in posterior teeth placed by dental students were successful for a minimum of five years.

Satellite observation to assess dengue risk due to Aedes aegypti and Aedes albopictus in a subtropical city of Argentina.

Earth observation environmental features measured through remote sensing and models of vector mosquitoes species Aedes aegypti and Ae. albopictus provide an advancement with regards to dengue risk in urban environments of subtropical areas of Argentina. The authors aim to estimate the effect of landscape coverage and spectral indices (Normalized Difference Vegetation Index [NDVI], Normalized Difference Water Index [NDWI] and Normalized Difference Built-up Index [NDBI]) on the larvae abundance of Ae. aegypti and Ae. albopictus in Eldorado, Misiones, Argentina using remote satellite sensors. Larvae of these species were collected monthly (June 2016 to April 2018), in four environments: tire repair shops, cemeteries, dwellings and an urban natural park. The proportion of landscape coverage (water, urban areas, bare soil, low vegetation and high vegetation) was determined from the supervised classification of Sentinel-2 images and spectral indices, calculated. The authors developed spatial models of both vector species by generalized linear mixed models. The model's results showed that Ae. aegypti larvae abundance was better modelled by NDVI minimum values, NDBI maximum values and the interaction between them. For Ae. albopictus proportion of bare soil, low vegetation and the interaction between both variables explained better the abundance.

New relevant chorological and conservation data on Carex (Cyperaceae) and Hypericum (Hypericaceae) from Ecuador.

Background: Knowledge of Carex L. (true sedges) and Hypericum L. (St. John's wort) in the Neotropics is fragmentary. New information: As a result of a fieldwork campaign in Ecuador and revision of herbarium collections (K, QCA and QCNE), we present here relevant records of twelve Carex (Cyperaceae) and four Hypericum (Hypericaceae) species. Regarding Carex, we present the novel report for South America of C.aztecica, as well as the first Ecuadorian records for C.brehmeri, C.collumanthus, C.fecunda, C.melanocystis and C.punicola. The three later records have additional biogeographical significance, as they represent the new northern limit of these species. We also include observations for another five species included in the Ecuadorian Red List of Endemic Plants. As a result, the list of native Carex reported for Ecuador would now include 52 taxa. With regard to Hypericum, we include the new report of H.sprucei for the province of Bolívar, and the confirmation of the presence of three rare species (H.acostanum, H.matangense, H.prietoi) in their type localities, although with extremely low population sizes. We discuss their conservation status and implications.

Centro de referência de álcool, tabaco e outras drogas: seis anos de uma intervenção / Reference center for alcohol, tobacco and other drugs: six years of intervention / Centro de referencia en el tratamiento de alcohol, tabaco y otras drogas: seis años de intervención

OBJETIVO: descrever a evolução dos modelos de intervenção e tratamento do Centro de Referência de Álcool, Tabaco e Outras Drogas do Estado de São Paulo, apresentando dados de produção dos últimos 6 anos. MÉTODO: estudo transversal, retrospectivo, com dados e registros dos atendimentos realizados entre 2013 e 2018 em diversos setores do CRATOD. RESULTADOS: o serviço contabilizou nos últimos seis anos 204.933 registros de atendimentos sendo 31.807 de casos novos, 12.318 testes rápidos para HIV, Sífilis, Hepatite B e C e atendeu 69 pacientes na Moradia Monitorada. CONCLUSÃO: a linha de cuidados do serviço engloba três premissas: acolhimento com escuta qualificada, tratamento ambulatorial/hospitalar e reinserção social, nesse contexto, o profissional de enfermagem aparece como peça fundamental durante todas as fases do tratamento. A consistência desse trabalho em conjunto com a equipe multiprofissional resultou na consolidação e estruturação de um fluxo de atendimento que visa a constante motivação e cuidado do dependente químico.

OBJECTIVE: to describe the evolution of the intervention and treatment models of the Reference Center for Alcohol, Tobacco and Other Drugs in the State of São Paulo, submitting production data for the last 6 years. METHOD: a cross-sectional and retrospective study, with data and records of the consultations carried out between 2013 and 2018 in different CRATOD sectors. RESULTS: the service counted 204,933 service records in the last six years, 31,807 of which were new cases, 12,318 rapid tests for HIV, Syphilis, and Hepatitis B and C. and served 69 patients in the Monitored Housing. CONCLUSION: the service's line of care encompasses three premises: reception with qualified listening, outpatient/hospital treatment and social reintegration, in this context, the nursing professional appears as a fundamental part during all treatment phases. The consistency of this work in conjunction with the multi-professional team resulted in the consolidation and structuring of a service flow aimed at the constant motivation and care of the drug addict.

OBJETIVO: describir la evolución de los modelos de intervención y tratamiento del Centro de Referencia en el tratamiento de Alcohol, Tabaco y Otras Drogas en el Estado de São Paulo, presentando datos registrados en los últimos 6 años. MÉTODO: estudio transversal, retrospectivo, con datos y registros de las consultas realizadas entre 2013 y 2018 en diferentes sectores de CRATOD. RESULTADOS: se computaron 204,933 registros de servicio en los últimos seis años, 31,807 de los cuales referían a casos nuevos, 12,318 pruebas rápidas para VIH, Sífilis, Hepatitis B y C y fueron atendidos 69 pacientes en la Vivienda Monitoreada. CONCLUSIÓN: la línea de atención del servicio abarca tres premisas: admisión con escucha calificada, tratamiento ambulatorio/hospitalario y reintegración social, en este contexto, el profesional de enfermería surge como parte fundamental en todas las fases del tratamiento. La coherencia de este trabajo junto con el equipo multiprofesional dio como resultado la consolidación y estructuración de un flujo de servicio dirigido a la motivación y el cuidado constante del adicto.

Presence of Ascogregarina culicis and Ascogregarina sp. in natural sympatric populations of Aedes aegypti and Ae. albopictus (Diptera: Culicidae) in Argentina.

Aedes aegypti is the main vector of the four arboviruses in America which have the greatest impact on human health. The introduction of Aedes albopictus in South America and Argentina acquires importance given the possibility that this species may be a new vector of arboviruses in this region. For this reason, the studies of the biology of their parasites, such as Ascogregarina spp., should be important for the knowledge of the invasive behavior of these vectors. We reported the finding of Ascogregarina culicis in Aedes aegypti and Ascogregarina sp. in Ae. albopictus populations in subtropical Argentina. The prevalence of parasitism by A. culicis in Ae. aegypti and Ascogregrarina sp. in Ae. albopictus was 34.81% (n = 464) and 37.23% (n = 70), respectively, differing between the seasons and habitats. The infection intensity caused by A. culicis and Ascogregarina sp. varied between 1 to 250 and 1 to 327 trophozoites respectively. Ascogregarina culicis was found throughout the all sampling period of Ae. aegypti (June 2016-April 2018). However the presence of Ascogregarina sp. in the midgut of Ae. albopictus was not recorded throughout the whole sampling period despite the presence of the host.

HIV and syphilis infections and associated factors among patients in treatment at a Specialist Alcohol, Tobacco, and Drugs Center in São Paulo's "Cracolândia".

INTRODUCTION: This study describes the epidemiological scenario of human immunodeficiency virus (HIV) and syphilis at the biggest specialist drug addiction center in Brazil. The great challenge is to find strategies to reduce the impact of inequality and discrimination and develop policies to protect individuals living with - or at risk of - infections. METHODS: During the period from January 1 to May 31, 2016, a cross-sectional study was conducted on which all patients (N = 806) seeking inpatient treatment were enrolled. A structured diagnostic interview and rapid tests were conducted initially, and diagnoses were confirmed by tests conducted at a venereal disease research laboratory (VDRL). RESULTS: HIV and syphilis rates were 5.86% and 21.9%, respectively. Women were nearly 2.5 times more likely to have syphilis. HIV infection was associated with unprotected sex (odds ratio [OR]: 3.27, p = 0.003, 95% confidence interval [95%CI]: 1.51-7.11), and suicidal ideation (OR: 6.63, p = 0.001, 95%CI: 3.37-14.0). Although only 1.86% reported injecting drugs at any point during their lifetimes, this variable was associated with both HIV and syphilis. Elevated rates of HIV and syphilis were observed in the context of this severe social vulnerability scenario. CONCLUSION: The risk factors identified as associated with HIV and syphilis should be taken into consideration for implementation of specific prevention strategies including early diagnosis and treatment of sexually transmitted infections (STI) to tackle the rapid spread of STIs in this population.

HIV and syphilis infections and associated factors among patients in treatment at a Specialist Alcohol, Tobacco, and Drugs Center in São Paulo's "Cracolândia"

Abstract Introduction This study describes the epidemiological scenario of human immunodeficiency virus (HIV) and syphilis at the biggest specialist drug addiction center in Brazil. The great challenge is to find strategies to reduce the impact of inequality and discrimination and develop policies to protect individuals living with - or at risk of - infections. Methods During the period from January 1 to May 31, 2016, a cross-sectional study was conducted on which all patients (N = 806) seeking inpatient treatment were enrolled. A structured diagnostic interview and rapid tests were conducted initially, and diagnoses were confirmed by tests conducted at a venereal disease research laboratory (VDRL). Results HIV and syphilis rates were 5.86% and 21.9%, respectively. Women were nearly 2.5 times more likely to have syphilis. HIV infection was associated with unprotected sex (odds ratio [OR]: 3.27, p = 0.003, 95% confidence interval [95%CI]: 1.51-7.11), and suicidal ideation (OR: 6.63, p = 0.001, 95%CI: 3.37-14.0). Although only 1.86% reported injecting drugs at any point during their lifetimes, this variable was associated with both HIV and syphilis. Elevated rates of HIV and syphilis were observed in the context of this severe social vulnerability scenario. Conclusion The risk factors identified as associated with HIV and syphilis should be taken into consideration for implementation of specific prevention strategies including early diagnosis and treatment of sexually transmitted infections (STI) to tackle the rapid spread of STIs in this population.

Adulterants in crack cocaine in Brazil.

INTRODUCTION: Brazil is the world's biggest consumer of crack cocaine, and dependence is a major public health issue. This is the first study to investigate the prevalence of potentially harmful adulterants present in hair samples from Brazilian patients with crack cocaine dependence. METHOD: We evaluated adulterants in hair samples extracted by convenience from 100 patients admitted at the 48 hour-observation unit of Centro de Referência de Álcool, Tabaco e Outras Drogas (CRATOD), Brazil's largest center for addiction treatment. A cross-sectional analysis was performed with the data obtained. RESULTS: Adulterants were found in 97% of the analyzed hair samples. The most prevalent adulterant was lidocaine (92%), followed by phenacetin (69%) and levamisole (31%). CONCLUSION: Adulterants were widely prevalent in hair samples from crack users treated at CRATOD: at least one adulterant was present in virtually all the hair samples collected. This points to a need to monitor adverse effects in the clinical setting in order to provide this high-risk group of patients with prompt and effective care related to the acute and chronic complications associated with these adulterants.

Adulterants in crack cocaine in Brazil / Adulterantes no crack vendido na "Cracolândia"

Abstract Introduction Brazil is the world's biggest consumer of crack cocaine, and dependence is a major public health issue. This is the first study to investigate the prevalence of potentially harmful adulterants present in hair samples from Brazilian patients with crack cocaine dependence. Method We evaluated adulterants in hair samples extracted by convenience from 100 patients admitted at the 48 hour-observation unit of Centro de Referência de Álcool, Tabaco e Outras Drogas (CRATOD), Brazil's largest center for addiction treatment. A cross-sectional analysis was performed with the data obtained. Results Adulterants were found in 97% of the analyzed hair samples. The most prevalent adulterant was lidocaine (92%), followed by phenacetin (69%) and levamisole (31%). Conclusion Adulterants were widely prevalent in hair samples from crack users treated at CRATOD: at least one adulterant was present in virtually all the hair samples collected. This points to a need to monitor adverse effects in the clinical setting in order to provide this high-risk group of patients with prompt and effective care related to the acute and chronic complications associated with these adulterants.

Resumo Introdução O Brasil é o maior consumidor mundial de crack, e a dependência é um grande problema de saúde pública. Este é o primeiro estudo a investigar a prevalência de adulterantes potencialmente nocivos presentes em amostras de cabelo de pacientes brasileiros com dependência de crack. Métodos Foram avaliados adulterantes em amostras de cabelos extraídos por conveniência de 100 pacientes internados na unidade de observação de 48 horas do Centro de Referência de Álcool, Tabaco e Outras Drogas (CRATOD), o maior centro de tratamento de dependência do Brasil. Uma análise transversal foi realizada com os dados obtidos. Resultados Foram encontrados adulterantes em 97% das amostras de cabelo analisadas. O adulterante mais prevalente foi a lidocaína (92%), seguida da fenacetina (69%) e levamisol (31%). Conclusão Os adulterantes foram amplamente prevalentes em amostras de cabelo de usuários de crack tratados no CRATOD: pelo menos um adulterante estava presente em praticamente todas as amostras de cabelo coletadas. Isso aponta para a necessidade de monitorar os efeitos adversos no ambiente clínico, a fim de proporcionar a esse grupo de pacientes de alto risco cuidados imediatos e efetivos relacionados às complicações agudas e crônicas associadas a esses adulterantes.

Trends in hospital consumption of analgesics after the implementation of a pain performance improvement plan / Tendências no consumo hospitalar de analgésicos após a implantação de plano de melhoria do controle da dor

Abstract Background: Pain management committee established a pain performance improvement plan in 2012. Objectives: The aim of the study was to assess the trends in analgesic consumption in a tertiary teaching hospital and the associated economic impact. Methods: A descriptive, retrospective study was conducted between 2011 and 2015. The analysis included: anti-inflammatory and antirheumatic products non-steroids, opioid analgesics and other analgesics and antipyretics. Data are converted into DDD/100 bed-days to analyze consumption trends. Main outcome measure: assessment of the analgesic consumption after the implementation of a pain performance improvement plan. Results: Overall, non-steroidal anti-inflammatory and antirheumatic products consumption decreased in 24.8 DDD/100 bed-days (-28.3%), accounting for most of the total analgesic consumption decrease (-13%) and total cost (-44.3%). Opioid consumption increased markedly from 22.3 DDD/100 bed-days in 2011 to 26.5 DDD/100 bed-days in 2015 (+18.9%). In 2011, the most consumed opioid was morphine (8.6 DDD/100 bed-days). However, there was an increasing trend in fentanyl consumption (from 8.1 to 12.1 DDD/100 bed-days in 2015), which resulted in fentanyl replacing morphine from the most consumed opioid in 2015 (12.1 DDD/100 bed-days). In 2015, the group of other analgesics and antipyretics represented 46.2% of the total analgesic consumption. Acetaminophen was the most commonly consumed analgesic drug (53.2 DDD/100 bed-days in 2015) and had the highest total cost, it represented 55.4% of the overall cost in 2015. Conclusion: Opioid consumption showed an increasing trend during the 5 year period, with fentanyl replacing morphine as the most used opioid. In general, analgesics diminished use was due to the decreasing trend of consumption of non-steroidal anti-inflammatory and antirheumatic products.

Resumo Justificativa: A Comissão para o Manejo da Dor estabeleceu um plano de melhoria no controle da dor em 2012. Objetivo: Avaliar as tendências do consumo de analgésicos em um hospital de ensino terciário e o impacto econômico associado. Métodos: Estudo descritivo, retrospectivo, feito entre 2011 e 2015. A análise incluiu: produtos anti-inflamatórios e antirreumáticos não esteroides, analgésicos opioides e outros analgésicos e antipiréticos. Os dados foram convertidos em DDD/100 leitos-dia para analisar as tendências de consumo. Principal medida do desfecho: avaliação do consumo de analgésicos após o estabelecimento de um plano de melhoria no controle da dor. Resultados: O consumo total de produtos anti-inflamatórios e antirreumáticos não esteroides diminuiu em 24,8 DDD/100 leitos-dia (-28,3%), representando a maior parte da redução total do consumo de analgésicos (-13%) e o custo total (-44,3%). O consumo global de opioides aumentou acentuadamente de 22,3 DDD/100 leitos-dia em 2011 para 26,5 DDD/100 leitos-dia em 2015 (+18,9%). Em 2011, o opioide mais consumido foi a morfina (8,6 DDD/100 leitos-dia). No entanto, houve uma tendência crescente no consumo de fentanil (de 8,1 para 12,1 DDD/100 leitos-dia em 2015), o que resultou na substituição de morfina por fentanil como o opioide mais consumido em 2015 (12,1 DDD/100 leitos-dia). Em 2015, o grupo dos outros analgésicos e antipiréticos representou 46,2% do consumo total de analgésicos. Acetaminofeno foi o analgésico mais consumido (53,2 DDD/100 leitos-dia em 2015) e teve o maior custo total, representou 55,4% do custo total em 2015. Conclusão: O consumo de opioides mostrou uma tendência crescente durante o período de cinco anos, fentanil substituiu morfina como o opioide mais usado. Em geral, o uso diminuído de analgésicos foi devido à tendência decrescente do consumo de produtos anti-inflamatórios e antirreumáticos não esteroides.

[Trends in hospital consumption of analgesics after the implementation of a pain performance improvement plan]. / Tendências no consumo hospitalar de analgésicos após a implantação de plano de melhoria do controle da dor.

BACKGROUND: Pain management committee established a pain performance improvement plan in 2012. OBJECTIVE: The aim of the study was to assess the trends in analgesic consumption in a tertiary teaching hospital and the associated economic impact. METHODS: A descriptive, retrospective study was conducted between 2011 and 2015. The analysis included: anti-inflammatory and antirheumatic products non-steroids, opioid analgesics and other analgesics and antipyretics. Data are converted into DDD/100 bed-days to analyze consumption trends. MAIN OUTCOME MEASURE: assessment of the analgesic consumption after the implementation of a pain performance improvement plan. RESULTS: Overall, non-steroidal anti-inflammatory and antirheumatic products consumption decreased in 24.8 DDD/100 bed-days (-28.3%), accounting for most of the total analgesic consumption decrease (-13%) and total cost (-44.3%). Opioid consumption increased markedly from 22.3 DDD/100 bed-days in 2011 to 26.5 DDD/100 bed-days in 2015 (+18.9%). In 2011, the most consumed opioid was morphine (8.6 DDD/100 bed-days). However, there was an increasing trend in fentanyl consumption (from 8.1 to 12.1 DDD/100 bed-days in 2015), which resulted in fentanyl replacing morphine from the most consumed opioid in 2015 (12.1 DDD/100 bed-days). In 2015, the group of other analgesics and antipyretics represented 46.2% of the total analgesic consumption. Acetaminophen was the most commonly consumed analgesic drug (53.2 DDD/100 bed-days in 2015) and had the highest total cost, it represented 55.4% of the overall cost in 2015. CONCLUSION: Opioid consumption showed an increasing trend during the 5 year period, with fentanyl replacing morphine as the most used opioid. In general, analgesics diminished use was due to the decreasing trend of consumption of non-steroidal anti-inflammatory and antirheumatic products.

Valoración del bocio congénito y permeabilidad de la vía aérea mediante resonancia magnética fetal / Congenital Goiter Evaluation and Airway Permeability by Fetal Magnetic Resonance Imaging

El bocio congénito es una patología infrecuente, que se genera por alteración de la función tiroidea fetal de causa endógena o exógena: disfunción tiroidea materna, déficit de aporte de yodo en la dieta o secundario a la toma de medicación. La repercusión en la maduración del feto, la compresión de estructuras adyacentes debido al aumento de tamaño, lo cual puede ser un factor de riesgo de obstrucción de la vía aérea y de lesiones hipóxico-isquémicas, hacen que el diagnóstico y tratamiento de esta patología sea de vital importancia. Habitualmente, se diagnostica por ecografía en el segundo o tercer trimestre de embarazo, pero la resonancia magnética (RM) se ha convertido en una técnica diagnóstica complementaria e importante ante un eventual tratamiento intraparto

Congenital goiter is an uncommon condition caused by altered fetal thyroid function of endogenous or exogenous cause (maternal thyroid dysfunction, iodine deficiency in the diet or secondary to taking medication). The impact on the mature development of the fetus, as well as the compression of adjacent structures due to increased size, which may be a risk factor for airway obstruction and hypoxic-ischemic lesions, make the diagnosis and treatment of this pathology of vital importance. It is usually diagnosed by ultrasound in the second or third trimester of pregnancy, but magnetic resonance imaging (MRI) has become a complementary and important diagnostic technique in the event of an intrapartum treatment procedure