Implications of fuel poverty for indoor black carbon concentrations from space heating.

Despite the global transition towards cleaner energy sources observed over the last decade, disparities in access persist worldwide. The dependence on biomass for household heating exacerbates fuel poverty, as economically vulnerable households face challenges in obtaining certified firewood and often resort to using contaminated biomass as a substitute, either partially or completely. We examined black carbon (BC) particle concentrations -a marker for combustion- during wood stove operation through a five-day case study in a typical Chilean household. BC increased rapidly following the ignition of the stove, with the combustion of dry Eucalyptus globulus logs yielding a substantially lower peak (5.29 µg/m3) than when using unclean biomass: 35.75 µg/m3 with demolition wood and painted furniture, and 87.11 µg/m3 with the addition of a blend of particleboard with polystyrene foam. During the latter two events, BC particles remained indoors for about 20 h before the concentrations reverted to pre-spike levels. The slow decay in BC concentrations was further influenced by the infiltration of outdoor air. The mean indoor BC concentrations were comparable to or even exceeded those observed on busy roads in major cities worldwide. These results highlight the risks associated with limited access to clean fuels for indoor heating, alongside inadequate insulation. This study sheds light on the problem of fuel poverty and its adverse effects on health and well-being.

Neuropeptides and receptors in the cephalochordate: A crucial model for understanding the origin and evolution of vertebrate neuropeptide systems.

Genomes and transcriptomes from diverse organisms are providing a wealth of data to explore the evolution and origin of neuropeptides and their receptors in metazoans. While most neuropeptide-receptor systems have been extensively studied in vertebrates, there is still a considerable lack of understanding regarding their functions in invertebrates, an extraordinarily diverse group that account for the majority of animal species on Earth. Cephalochordates, commonly known as amphioxus or lancelets, serve as the evolutionary proxy of the chordate ancestor. Their key evolutionary position, bridging the invertebrate to vertebrate transition, has been explored to uncover the origin, evolution, and function of vertebrate neuropeptide systems. Amphioxus genomes exhibit a high degree of sequence and structural conservation with vertebrates, and sequence and functional homologues of several vertebrate neuropeptide families are present in cephalochordates. This review aims to provide a comprehensively overview of the recent findings on neuropeptides and their receptors in cephalochordates, highlighting their significance as a model for understanding the complex evolution of neuropeptide signaling in vertebrates.

Advancing ethanol content determination in hydrogels: non-destructive and operational methods for health and criminal inspections.

The significance of accurate determination of ethanol content in hydrogel formulations was accentuated during COVID-19 pandemic coinciding with the heightened demand for sanitizing agents. The present article proposes three robust methodologies for this purpose: Fourier Transform Infrared Spectroscopy (FTIR), Raman spectroscopy, and Densitometry with matrix effect correction by Near-Infrared Spectroscopy (NIR). All three methods demonstrated outstanding linearity (R2 ≥ 0.99) and minimal errors (< 1.7%), offering simplicity and operational efficiency. FTIR and Raman, being non-destructive and requiring minimal preparation, enable practical on-site analysis capabilities, underscoring the potential of the spectroscopic methods to expedite health investigations and inspections, empowering on-site ethanol determination, and relieving the burden on official laboratories. Additionally, the densitometry with NIR-based approach showcased superior accuracy and precision compared to spectroscopic methods, meeting validation criteria while offering operational advantages over the costly official distillation-based method. Therefore, it stands as a reliable and reproducible technique for comprehensive health and criminal compliance assessments, making it a compelling alternative for both industry and official laboratories.

Anti-inflammatory effect of Anadenanthera colubrina var. cebil (Griseb.) Altschul in experimental elastase-induced pulmonary emphysema in rats.

ETHNOPHARMACOLOGICAL RELEVANCE: Medicinal plants have shown promise in the search for new treatments of pulmonary emphysema. Anadenanthera colubrina, a species native to the Caatinga biome in northeastern Brazil, is widely recognized and traditionally employed in the treatment of pulmonary diseases. Many studies corroborate popular knowledge about the medicinal applications of A. colubrina, which has demonstrated a remarkable variety of pharmacological properties, however, its anti-inflammatory and antioxidant properties are highlighted. AIM OF THE STUDY: The objective of this study was to investigate the anti-inflammatory potential of the crude hydroethanolic extract of A. colubrina var. cebil (Griseb.) Altschul on pulmonary emphysema in rats as well as to determine its potential genotoxic and cytotoxic effects using the micronucleus assay. MATERIALS AND METHODS: The stem bark of the plant was collected in Pimenteiras-PI and sample was extracted by maceration using 70% ethanol. A portion of the extract underwent phytochemical analyses using TLC and HPLC. In this study, 8-week-old, male Wistar rats weighing approximately ±200 g was utilized following approval by local ethics committee for animal experimentation (No. 718/2022). Pulmonary emphysema was induced through orotracheal instillation of elastase, and treatment with A. colubrina extract or dexamethasone (positive control) concomitantly during induction. Twenty-eight days after the initiation of the protocol, plasma was used for cytokine measurement. Bronchoalveolar lavage (BAL) was used for leukocyte count. After euthanasia, lung samples were processed for histological analysis and quantification of oxidative stress markers. The micronucleus test was performed by evaluating the number of polychromatic erythrocytes (PCE) with micronuclei (MNPCE) to verify potential genotoxic effects of A. colubrina. A differential count of PCE and normochromatic erythrocytes (NCE) was performed to verify the potential cytotoxicity of the extract. Parametric data were subjected to normality analysis and subsequently to analysis of variance and Tukey or Dunnett post-test, non-parametric data were treated using the Kruskal-Wallis test with Dunn's post-test for unpaired samples. P value < 0.05 were considered significant. RESULTS: The A. colubrina extract did not show a significant increase in the number of MNPCE (p > 0.05), demonstrating low genotoxicity. No changes were observed in the PCE/NCE ratio of treated animals, compared with the vehicle, suggesting low cytotoxic potential of the extract. A significant reduction (p < 0.05) in neutrophilic inflammation was observed in the lungs of rats treated with the extract, evidenced by presence of these cells in both the tissue and BAL. The extract also demonstrated pulmonary antioxidant activity, with a significant decrease (p < 0.05) in myeloperoxidase, malondialdehyde, and nitrite levels. TNFα, IL-1ß, and IL-6 levels, as well as alveolar damage, were significantly reduced in animals treated with A. colubrina extract. Phytochemical analyses identified the presence of phenolic compounds and hydrolysable tannins in the A. colubrina extract. CONCLUSIONS: The findings of this study highlights the safety of the hydroethanolic extract of Anadenanthera colubrina, and demonstrates its potential as a therapeutic approach in the treatment of emphysema. The observed properties of this medicinal plant provide an optimistic outlook in the development of therapies for the treatment of pulmonary emphysema.

Differential tissue immune stimulation through immersion in bacterial and viral agonists in the Antarctic Notothenia rossii.

The genome evolution of Antarctic notothenioids has been modulated by their extreme environment over millennia and more recently by human-caused constraints such as overfishing and climate change. Here we investigated the characteristics of the immune system in Notothenia rossii and how it responds to 8 h immersion in viral (Poly I:C, polyinosinic: polycytidylic acid) and bacterial (LPS, lipopolysaccharide) proxies. Blood plasma antiprotease activity and haematocrit were reduced in Poly I:C-treated fish only, while plasma protein, lysozyme activity and cortisol were unchanged with both treatments. The skin and duodenum transcriptomes responded strongly to the treatments, unlike the liver and spleen which had a mild response. Furthermore, the skin transcriptome responded most to the bacterial proxy (cell adhesion, metabolism and immune response processes) and the duodenum (metabolism, response to stress, regulation of intracellular signal transduction, and immune system responses) to the viral proxy. The differential tissue response to the two proxy challenges is indicative of immune specialisation of the duodenum and the skin towards pathogens. NOD-like and C-type lectin receptors may be central in recognising LPS and Poly I:C. Other antimicrobial compounds such as iron and selenium-related genes are essential defence mechanisms to protect the host from sepsis. In conclusion, our study revealed a specific response of two immune barrier tissue, the skin and duodenum, in Notothenia rossii when exposed to pathogen proxies by immersion, and this may represent an adaptation to pathogen infective strategies.

Revisiting the evolution of Family B1 GPCRs and ligands: Insights from mollusca.

Family B1 G protein-coupled receptors (GPCRs) are one of the most well studied neuropeptide receptor families since they play a central role in many biological processes including endocrine, gastrointestinal, cardiovascular and reproduction in animals. The genes for these receptors emerged from a common ancestral gene in bilaterian genomes and evolved via gene/genome duplications and deletions in vertebrate and invertebrate genomes. Their existence and function have mostly been characterized in vertebrates and few studies exist in invertebrate species. Recently, an increased interest in molluscs, means a series of genomes have become available, and since they are less modified than insect and nematode genomes, they are ideal to explore the origin and evolution of neuropeptide gene families. This review provides an overview of Family B1 GPCRs and their peptide ligands and incorporates new data obtained from Mollusca genomes and taking a comparative approach challenges existing models on their origin and evolution.

Prevalence of chronic cough, its risk factors and population attributable risk in the Burden of Obstructive Lung Disease (BOLD) study: a multinational cross-sectional study.

Background: Chronic cough is a common respiratory symptom with an impact on daily activities and quality of life. Global prevalence data are scarce and derive mainly from European and Asian countries and studies with outcomes other than chronic cough. In this study, we aimed to estimate the prevalence of chronic cough across a large number of study sites as well as to identify its main risk factors using a standardised protocol and definition. Methods: We analysed cross-sectional data from 33,983 adults (≥40 years), recruited between Jan 2, 2003 and Dec 26, 2016, in 41 sites (34 countries) from the Burden of Obstructive Lung Disease (BOLD) study. We estimated the prevalence of chronic cough for each site accounting for sampling design. To identify risk factors, we conducted multivariable logistic regression analysis within each site and then pooled estimates using random-effects meta-analysis. We also calculated the population attributable risk (PAR) associated with each of the identifed risk factors. Findings: The prevalence of chronic cough varied from 3% in India (rural Pune) to 24% in the United States of America (Lexington,KY). Chronic cough was more common among females, both current and passive smokers, those working in a dusty job, those with a history of tuberculosis, those who were obese, those with a low level of education and those with hypertension or airflow limitation. The most influential risk factors were current smoking and working in a dusty job. Interpretation: Our findings suggested that the prevalence of chronic cough varies widely across sites in different world regions. Cigarette smoking and exposure to dust in the workplace are its major risk factors. Funding: Wellcome Trust.

Retiform purpura secondary to Rickettsia conorii / Púrpura retiforme secundaria a Rickettsia conorii

Retiform purpura consists of branching purpuric lesions caused by a complete blockage of blood flow in the dermal/subcutaneous vasculature. It is an acute life-threatening disorder characterized by intravascular thrombosis and hemorrhagic infarction of the skin complicated with disseminated intravascular coagulation. It is commonly seen in acute infections following meningococcal and streptococcal infections. Few cases have been described of retiform purpura following rickettsial infections in the literature and rarely with this magnitude. The purpose of this report is to highlight the possibility of this situation in critically ill patients. We report a case of a 62-year-old woman admitted in the intensive care unit with septic shock from Rickettsia conorii. She developed quickly an intense retiform purpura requiring several surgical interventions to control the necrosis. The dermatologic situation was only completely controlled with treatment of underlying situation. This is a severe complication of a critical infectious disease. (AU)

La púrpura retiforme consiste en lesiones purpúricas ramificadas causadas por un bloqueo completo del flujo sanguíneo en la vasculatura dérmica/subcutánea. Es un trastorno agudo potencialmente mortal caracterizado por trombosis intravascular e infarto hemorrágico de la piel complicado con coagulación intravascular diseminada. Se ve comúnmente en infecciones agudas después de infecciones meningocócicas y estreptocócicas. Se han descrito pocos casos de púrpura retiforme tras infecciones por rickettsiosis en la literatura y rara vez de esta magnitud. El propósito de este informe es resaltar la posibilidad de esta situación en pacientes críticamente enfermos. Presentamos el caso de una mujer de 62 años ingresada en la unidad de cuidados intensivos con shock séptico por Rickettsia conorii. Rápidamente desarrolló una intensa púrpura retiforme que requirió varias intervenciones quirúrgicas para controlar la necrosis. La situación dermatológica solo se controló por completo con el tratamiento de la situación subyacente. Esta es una complicación grave de una enfermedad infecciosa crítica. (AU)

Caracterização demográfica, clínica e terapêutica dos casos de pneumonia hospitalar não associada à ventilação mecânica / Demographic, clinical and therapeutic characterization of the cases of hospital-acquired non-ventilator associated pneumonia

Objetivo: Caracterizar os indivíduos adultos internados que desenvolveram Pneumonia Hospitalar Não Associada à Ventilação Mecânica, segundo variáveis demográficas, clínicas e terapêuticas. Métodos: Estudo transversal e descritivo, realizado em hospital terciário do norte do Paraná; considerando as fichas de notificação das Infecções Relacionadas à Assistência à Saúde da Comissão de Controle de Infecção Hospitalar, com idade maior ou igual a 18 anos, internados no período de janeiro de 2017 a dezembro de 2018. Resultados: Em relação ao sexo houve similaridade, com maior prevalência em pacientes acima de 60 anos e com o tempo de permanência prolongado; as variáveis clínicas resultaram em 50,6% de pacientes com hemocultura associada à pneumonia negativa, destes,53,6% evoluíram a óbito. Quanto às culturas de secreção traqueal, obteve-se maior índice de Acinetobacter baumanni, com a utilização do antimicrobiano piperacilina sódica + tazobactam sódico. Conclusão: Os casos de Pneumonia Hospitalar Não Associada à Ventilação Mecânica ocorreram na mesma proporção entre os sexos, com prevalência em idosos e evolução de óbito de mais da metade dos indivíduos. O perfil clínico das secreções traqueais, hemocultura de Staphylo spp, revela que o microrganismo Acinetobacter baumanni foi o mais prevalente, tendo como escolha terapêutica de antimicrobiano a classe das cefalosporinas. Descritores: Pneumonia. Infecção Hospitalar. Pneumonia Associada à Assistência à Saúde. Enfermagem.

Objective: To characterize the hospitalized adult individuals thatdeveloped hospital-acquired non-ventilator associated pneumonia, according to demographic, clinical and therapeutic variables.Methods: A cross-sectional and descriptive study, carried out at a tertiary-level hospital in northern Paraná; considering the notification forms of Healthcare-Associated Infectionsfrom theHospital Infection Control Commissionin patients aged at least 18years old, admitted from January2017 to December2018.Results: There was similarity in relation to gender, with higher prevalence in patients over 60years old and with prolonged hospitalization time; the clinical variables resulted in 50.6% of patients with negative blood cultures associated with pneumonia, with 53.6% of them evolving to death. Regarding the tracheal secretioncultures, a higher index of Acinetobacter baumanniwas obtained, with use of the piperacillin sodium+tazobactam sodiumantimicrobial.Conclusion:The cases of hospital-acquired non-ventilator associated pneumoniaoccurred in the same proportion between the genders, with prevalence in older adults and evolution of death in more than half of the individuals. The clinical profile of the tracheal secretions andStaphylosppblood cultures reveals that the Acinetobacter baumannimicroorganism was the most prevalent, with thecephalosporins class as the antimicrobial therapeutic choice.Descriptors:Pneumonia. Cross Infection. Health-Care Associated Pneumonia. Nursing.

Gall traits and galling insect survival in a multi-enemy context / Características de las agallas, y supervivencia de insectos que producen agallas, en el contexto de enemigos múltiples

Introduction: The enemy hypothesis postulates that gall traits protect galling insects against natural enemies. Galls show a huge range of sizes, colors and ornaments, which vary even intraspecifically. However, galling insects are targets of various organisms that attack them directly or indirectly. In this context, to consider only one gall trait to investigate gall structure acting against only one guild of enemies can conceal an understanding of the community-level interactions. Objective: Herein, we take these ideas into consideration to investigate the conspicuous galls induced by Palaeomystella oligophaga Becker and Adamski 2008 (Lepidoptera) on Macairea radula (Bonpl.) (Melastomataceae) as a model system. We characterize this system through categorization of the different enemy guilds present in the community. We identified them to the lowest taxonomic level possible and determined the kind of interaction responsible for galling insects' deaths. Considering the enemy hypothesis and the selection of secondary characteristics, we also aimed to determine which of the multiple gall traits influence the survival success of galling insects in a multi-enemy context. Methods: We inspected galls and characterized the enemy guilds affecting the galling insect and the mortality rates produced by each one of them. Next, we tested whether the distinct gall traits measured (parenchyma thickness, color, projections) promote galling insect survival with respect to each enemy. Results: The mortality induced by indirect enemies (organisms that interact with gall tissues and can interact secondarily with galling insect) was 47.3 %, being higher than that caused by parasitoids and predators (31.5 %). Despite the gall's structural complexity, live galling insects showed the smallest occurrence (21.2 %). Parenchyma thickness was negatively related to Calliephialtes parasitoids, Gelechiidae cecidophages and predation signals. Conclusions: We demonstrated that the attacks to gall tissues by the cecidophages represented the highest threat to P. oligophaga survival, being higher than the mortality caused by direct enemies. That is, the gall traits were not as efficient as supposed to protect the galling insect from the attack of natural enemies. Nevertheless, we also demonstrated that parenchyma thickness can be negatively related to some organisms, especially direct enemies. Other traits hypothesized as defensive (e.g. projections, coloration) may simply play no role.

Introducción: La hipótesis del enemigo postula que las características de la agalla protegen al agallero contra los enemigos naturales. Las agallas muestran una gran variedad de tamaños, colores y adornos, que varían incluso de forma intraespecífica. Sin embargo, los agalleros son objetivos de varios organismos que los atacan directa o indirectamente. En este contexto, considerar solo una característica para investigar la estructura de la agalla actúando contra un solo gremio de enemigos puede ocultar una comprensión de las interacciones a nivel comunitario. Objetivos: Para investigar las ideas presentadas usamos las agallas conspicuas inducidas por Palaeomystella oligophaga Becker y Adamski 2008 (Lepidoptera) en Macairea radula (Bonpl.) (Meslastomataceae) como sistema modelo. Describimos este sistema a través de la categorización de los diferentes gremios enemigos presentes en la comunidad. Los identificamos al nivel taxonómico más bajo posible y determinamos el tipo de interacción responsable de la muerte de los agalleros. Teniendo en cuenta la hipótesis del enemigo y la selección de características secundarias, también buscamos determinar cuáles de las múltiples caracteristicas de la agalla influyen en el éxito de supervivencia de los agalleros en un contexto de enemigos múltiples. Métodos: Inspeccionamos las agallas y caracterizamos los gremios enemigos que afectan al agallero y las tasas de mortalidad producidas por cada uno de ellos. Luego, probamos si las distintas caracteristicas de las agallas medidas (grosor del parénquima, color, proyecciones) promueven la supervivencia de los agalleros con respecto a cada enemigo. Resultados: La mortalidad indirecta inducida por los cecidofagos fue del 47.3 %, superior a la causada por los parasitoides y los depredadores (31.5 %). Apesar de la complejidad estructural de la agalla, los agalleros vivos mostraron la menor presencia (21.2 %). El grosor del parénquima se relacionó negativamente con los parasitoides de Calliephialtes, los cecidófagos de Gelechiidae y la depredación. Conclusiones: Demostramos que los ataques a los tejidos biliares por cecidófagos representaron la mayor amenaza para la supervivencia de P. oligophaga. Esto es interesante porque, de acuerdo con la hipótesis del enemigo, la estructura de las agallas debería proporcionar protección para los insectos agalleros en lugar de atraer a los insectos que se alimentan de la agalla misma. Sin embargo, también demostramos que el grosor del parénquima puede estar relacionado negativamente con algunos organismos, especialmente los enemigos directos. Otras caracteristicas hipotéticas como defensivas (por ejemplo, proyecciones, coloración) pueden simplemente no desempeñar ningún papel.

Anca negative pauci-immune crescentic glomerulonephritis and mixed connective tissue disease: a case study / Glomerulonefrite crescêntica pauci-imune ANCA-negativa e doença mista do tecido conjuntivo: relato de um caso

Abstract One of the most common causes of rapidly progressive glomerulonephritis (RPGN) is pauci-immune crescentic glomerulonephritis (CrGN). In the majority of cases, this condition has a positive serologic marker, the anti-neutrophil cytoplasmic antibodies (ANCAs), but in approximately 10% there are no circulating ANCAs, and this subgroup has been known as the ANCA-negative pauci-immune CrGN. RPGN can be associated with systemic diseases, but there are only few case reports describing the association with mixed connective tissue disease (MCTD). The authors report a case of ANCA-negative CrGN associated with a MCTD.

Resumo Uma das causas mais comuns da glomerulonefrite rapidamente progressiva (GNRP) é a glomerulonefrite crescêntica (GNC) pauci-imune. Na maioria dos casos, a patologia apresenta um marcador sorológico positivo, o anticorpo anticitoplasma de neutrófilos (ANCA), mas em cerca de 10% dos pacientes não há ANCAs circulantes, perfazendo um subgrupo da patologia conhecido como GNC pauci-imune ANCA-negativa. A GNRP pode estar associada a doenças sistêmicas, mas são poucos os relatos de caso que descrevem sua associação com doença mista do tecido conjuntivo (DMTC). O presente artigo relata um caso de GNC ANCA-negativa associada a DMTC.

Imagem, corpo e linguagem em usos do aplicativo Grindr / Image, corps et langage dans utilisations de l'application Grindr / Image, cuerpo y lenguaje en usos de la aplicación Grindr / Image, body, and language in the usage of Grindr

Resumo O presente artigo aborda o aplicativo de busca por parceiros entre homens Grindr, em seus aspectos linguísticos e semióticos, enfatizando as produções imagéticas e discursivas de seus usuários, concebidas enquanto performatividades. Foram entrevistados onze homens que utilizam a rede social, com foco em suas composições fotográficas e interações textuais com outros membros do aplicativo, analisadas posteriormente a partir das perspectivas butlerianas e barthesianas sobre a linguagem e sua interface com a imagem. Constatou-se a composição de uma "gramática" produzida no interior do aplicativo, com significação particular de palavras e imagens e direcionamento comercial e midiático. Além disso, técnicas de composição e manipulação de fotografias, modulações do corpo e associação de práticas travadas no aplicativo a uma dimensão política foram abordadas pelos entrevistados. Desta forma, foi possível entender o Grindr como um "sistema de significação", no qual tais dinâmicas são produzidas, negociadas e disputadas no seu próprio uso.

Résumé Le présent travail discute l'application de recontres pour hommes Grindr, dans ses aspects linguistique et sémiotique, en mettant l'accent sur les productions imaginaires et linguistiques de ses utilisateurs, conçues comme des performativités. Onze hommes qui utilisent ce réseau social ont été interviewés, en se concentrant sur leurs compositions photographiques et leurs interactions textuelles avec les autres membres, analysées par la suite dans les cadres des perspectives butlerienne et barthesiennes sur la langue et sa relation avec l'image. On a identifié la composition d'une "grammaire" produite à l'intérieur de l'application, avec une signification particulière des mots et des images, avec ciblage commercial et médiatique. En outre, les interviewés ont abordé les techniques de composition et de manipulation des photographies, les modulations corporelles et l'association de pratiques enfermées dans l'application à une dimension politique. Ainsi, il a été possible de comprendre le Grindr comme un "système de signification" où ces dynamiques sont produites, négociées et contestées dans leur propre usage.

Resumen El presente artículo discute la aplicación de citas entre hombres Grindr, en sus aspectos linguísticos y semióticos, enfatizando las producciones de imágenes y lenguaje de sus usuarios, comprendidas como performatividades. Once hombres usuarios de Grindr fueron entrevistados, con foco en sus composiciones fotográficas y interacciones textuales con otros miembros de la red social, posteriormente analizadas a partir de las perspectivas butlerianas y barthesianas sobre el lenguaje y sus relaciones con la imagen. Se constató la producción de una "gramática" en el interior de la aplicación, con la significación particular de palabras y imágenes com dirección comercial y mediatica. Además, técnicas de composición y manipulación de fotografías, modulaciones del cuerpo y la asociación entre prácticas en la aplicación a cuestiones políticas fueron abordadas por los entrevistados. De esta manera, fue posible comprender Grindr como un "sistema de significación", dónde estas dinámicas son producidas, negociadas y disputadas en sus usos.

Abstract In our study we discuss the gay dating app Grindr, considering its linguistic and semiotic aspects, emphasizing its users' imagery and linguistic productions, conceived as performativities. Eleven users of this social network were interviewed, focusing on their photographic compositions and textual interactions with other members, subsequently analyzed under Butlerian and Barthesian perspectives on language and its relation to image. A "grammar" with particular meanings of words and images with commercial and mediatic target was found out to be used within the application. Furthermore, techniques of photography, body improvement, and associations between practices and political issues were addressed by the interviewees. Therefore, we could understand Grindr as a "meaning system", where such dynamics are produced, negotiated and disputed in its uses.

Skin manifestations of tick bites in humans

Abstract: Ticks are blood-sucking arthropods that attach to human skin through oral devices causing diverse initial cutaneous manifestations, and may also transmit serious infectious diseases. In certain situations, the Health Teams (and especially dermatologists) may face difficulties in identifying the lesions and associating them to the parasites. To assist them in clinical diagnosis, we suggest a classification of the skin manifestations in primary lesions, which occur by the attachment the tick to the host (for toxicity and the anticoagulant substances in the saliva and/or marked inflammation by the penetration and permanence of the mouthparts) and secondary lesions that are manifestations of infections caused by rickettsia, bacteria, protozoa and fungi inoculated by the ticks.

Impact on sexual function of surgical treatment in rectal cancer

ABSTRACT Introduction The development of new surgical techniques and medical devices, like therapeutical multimodal approaches has allowed for better outcomes on patients with rectal cancer (RCa). Owing to that, an increased awareness and investment towards better outcomes regarding patients' sexual and urinary function has been recently observed. Aim Evaluate and characterize the sexual dysfunction of patients submitted to surgical treatment for RCa. Materials and Methods An observational retrospective study including all male patients who underwent a surgical treatment for RCa between January 2011 December 2014 (n=43) was performed, complemented with an inquiry questionnaire to every patient about its sexual habits and level of function before and after surgery. Discussion All patients were male, with an average of 64yo. (range 42-83yo.). The surgical procedure was a rectum anterior resection (RAR) in 22 patients (56%) and an abdominoperineal resection (APR) in 19(44%). Sixty three percent described their sexual life as important/very important. Sexual function worsening was observed in 76% (65% with complains on erectile function, and 27% on ejaculation). Fourteen patients (38%) didn't resume sexual activity after surgery. Increased age (p=0.007), surgery performed (APR) (p=0.03) and the presence of a stoma (p=0.03) were predictors of ED after surgery. A secondary analysis found that the type of surgery (APR) (p=0.04), lower third tumor's location (p=0.03) and presence of comorbidities (p=0.013) (namely, smokers and diabetic patients) were predictors of de novo ED after surgery. Conclusions This study demonstrated the clear negative impact in sexual function of patients submitted to a surgical treatment for RCa. Since it is a valued feature for patients, it becomes essential to correctly evaluate/identify these cases in order to offer an adequate therapeutical option.

O Regulamento Sanitário Internacional: quadro jurídico e desafios

Esta comunicação sublinha os novos desafios do Direito da Saúde, na sua vertente saúde pública, nomeadamente para a implementação do Regulamento Sanitário Internacional da Organização Mundial da Saúde. Apresenta primeiro o contexto do Regulamento Sanitário Internacional, numa perspectiva histórica. A seguir aborda questões específicas, como a atenção dada ao calendário para a implementação do RSI, e ao quadro das Emergências de Saúde Pública de Importância Internacional. Por fim, algumas observações são feitas acerca dos desafios da implementação do RSI nos Estadosmembros da Comunidade dos Países de Língua Portuguesa (CPLP)

Jovens mulheres do âmbito rural: gênero, projetos de vida e território em fotocomposições / Jóvenes mujeres del medio rural: género, proyectos de vida y territorio en fotocomposiciones / Young women in the rural context: gender, life projects and territory in photocomposition

RESUMO Este artigo analisa interfaces de gênero e território como marcadores identitários presentes nas falas e produções de imagens sobre projetos de vida de jovens mulheres de zonas rurais. O processo de pesquisa contemplou narrativas de caráter autobiográfico e fotocomposições realizadas pelas participantes, em que se buscou integrar aspectos de suas trajetórias acadêmicas, projetos vitais e profissionais, escolhas de vida e demandas culturais e comunitárias que influenciam no processo de construção de seus itinerários vitais. A aproximação a este grupo, comumente à margem da produção do saber em Psicologia, permitiu compreender como tais marcadores despontam de maneira dialógica em suas narrativas, questionando as formas de manifestação relacionadas aos antagonismos normativos entre o urbano/rural, o presente/passado, e das atribuições sociais ao ser mulher/homem.

RESUMEN Este artículo analiza las interfaces entre género y territorio como marcadores identitarios que se encuentran presentes en las verbalizaciones e imaginario de los proyectos de vida de las mujeres rurales jóvenes. El proceso de investigación ha contemplado narrativas de carácter autobiográfico y fotocomposiciones realizadas por las participantes, donde se ha buscado integrar aspectos de sus trayectorias académicas, elecciones de vida, proyectos profesionales y demandas culturales y comunitarias, considerando la influencia de estos aspectos ejercen en el proceso de construcción de sus itinerarios vitales. La aproximación a este colectivo, que comúnmente se encuentra al margen de la producción de saber en psicología, ha permitido comprender cómo tales marcadores despuntan de manera dialógica en sus narrativas, cuestionando las formas en que se manifiestan en relación los antagonismos normativos urbano/rural, presente/pasado, y las atribuciones sociales de ser mujer/hombre.

ABSTRACT This article analyzes the interface between gender and territory as identity markers present in the speeches and pictures about life projects of young women from rural areas. The research process included autobiographical narratives interviews and photo compositions made by the participants, which sought to integrate aspects of their academic trajectories, vital and professional projects, life choices and cultural and community demands that influence in the process of defining their vital projects. The approach to this group, often on the margins of production of knowledge in Psychology, allows us to understand how the identity markers emerge dialogically in their narratives, discussing the manifestations related to the normative antagonisms between urban/rural, present/past, and social assignments related to being woman/man.

Isolated posterior scleritis associated with tuberculosis / Esclerite posterior isolada associada à tuberculose

ABSTRACT Ocular tuberculosis (TB) is considered to be rare, although its incidence has varied widely over time and in different populations. Latent TB is diagnosed when a person is infected with Mycobacterium tuberculosis but does not have active TB. During the last decade, interferon-gamma release assay tests have been developed that allow identification of patients with latent TB infection with better specificity than the tuberculin skin test and can differentiate between infection and prior vaccination. Although rare, tuberculous scleritis should be considered in the differential diagnosis of posterior scleritis. Here we describe a patient with posterior scleritis and severe visual loss associated with latent TB without uveitis, anterior scleritis, keratitis, or any other previous ocular disease history. The patient responded well to a combined treatment of antitubercular therapy and oral corticosteroids.

RESUMO A tuberculose (TB) ocular foi considerada rara, embora a sua incidência tenha variado significativamente ao longo do tempo e nas diferentes populações. A TB latente é diagnosticada quando alguém é infetado com Mycobacterium tuberculosis sem possuir doença ativa. Durante a última década, testes tendo por base interferon gamma release assay foram desenvolvidos, permitindo a identificação de pacientes com infeção por tuberculose latente com maior especificidade que o teste tuberculínico e diferenciar infeção e vacinação prévia. Embora rara, a esclerite tuberculosa deve ser tida em consideração no diagnóstico diferencial de esclerite posterior. Reportamos um paciente com esclerite posterior e baixa grave de acuidade visual associada a TB latente, sem uveíte, esclerite anterior, ceratite ou história de doença ocular prévia. O paciente respondeu favoravelmente a um tratamento combinado de fármacos antituberculose e corticoides orais.

Venomous and poisonous arthropods: identification, clinical manifestations of envenomation, and treatments used in human injuries

Abstract This review presents the main species of venomous and poisonous arthropods, with commentary on the clinical manifestations provoked by the toxins and therapeutic measures used to treat human envenomations. The groups of arthopods discussed include the class Arachnida (spiders and scorpions, which are responsible for many injuries reported worldwide, including Brazil); the subphylum Myriapoda, with the classes Chilopoda and Diplopoda (centipedes and millipedes); and the subphylum Hexapoda, with the class Insecta and the orders Coleoptera (beetles), Hemiptera (stink bugs, giant water bugs, and cicadas), Hymenoptera (ants, wasps, and bees), and Lepidoptera (butterflies and moths).