Transcriptomic Analysis of Skin Color in Anole Lizards

Color and color pattern are critical for animal camouflage, reproduction, and defense. Few studies, however, have attempted to identify candidate genes for color and color pattern in squamate reptiles, a colorful group with over 10,000 species. We used comparative transcriptomic analyses between white, orange, and yellow skin in a color-polymorphic species of anole lizard to 1) identify candidate color and color-pattern genes in squamates and 2) assess if squamates share an underlying genetic basis for color and color pattern variation with other vertebrates. Squamates have three types of chromatophores that determine color pattern: guanine-filled iridophores, carotenoid- or pteridine-filled xanthophores/erythrophores, and melanin-filled melanophores. We identified 13 best candidate squamate color and color-pattern genes shared with other vertebrates: six genes linked to pigment synthesis pathways, and seven genes linked to chromatophore development and maintenance. In comparisons of expression profiles between pigment-rich and white skin, pigment-rich skin upregulated the pteridine pathway as well as xanthophore/erythrophore development and maintenance genes; in comparisons between orange and yellow skin, orange skin upregulated the pteridine and carotenoid pathways as well as melanophore maintenance genes. Our results corroborate the predictions that squamates can produce similar colors using distinct color-reflecting molecules, and that both color and color-pattern genes are likely conserved across vertebrates. Furthermore, this study provides a concise list of candidate genes for future functional verification, representing a first step in determining the genetic basis of color and color pattern in anoles

ACP-TX-I and ACP-TX-II, two novel phospholipases A(2) isolated from trans-pecos copperhead agkistrodon contortrix pictigaster venom: biochemical and functional characterization

This work reports the purification and biochemical and functional characterization of ACP-TX-I and ACP-TX-II, two phospholipases A(2) (PLA(2)) from Agkistrodon contortrix pictigaster venom. Both PLA(2)s were highly purified by a single chromatographic step on a C-18 reverse phase HPLC column. Various peptide sequences from these two toxins showed similarity to those of other PLA(2) toxins from viperid snake venoms. ACP-TX-I belongs to the catalytically inactive K49 PLA(2) class, while ACP-TX-II is a D49 PLA(2), and is enzymatically active. ACP-TX-I PLA(2) is monomeric, which results in markedly diminished myotoxic and inflammatory activities when compared with dimeric K49 PLA(2)s, confirming the hypothesis that dimeric structure contributes heavily to the profound myotoxicity of the most active viperid K49 PLA(2)s. ACP-TX-II exhibits the main pharmacological actions reported for this protein family, including in vivo local myotoxicity, edema-forming activity, and in vitro cytotoxicity. ACP-TX-I PLA(2) is cytotoxic to A549 lung carcinoma cells, indicating that cytotoxicity to these tumor cells does not require enzymatic activity11CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO - CNPQ163536/2013-

Differences in Inflammatory Cytokine Profile in Obesity-Associated Asthma: Effects of Weight Loss

Obesity and asthma are associated with systemic inflammation maintained by mediators released by adipose tissue and lung. This study investigated the inflammatory serum mediator profile in obese subjects (O) (n = 35), non-obese asthma (NOA) patients (n = 14), obese asthmatics (OA) (n = 21) and healthy controls (HC) (n = 33). The effect of weight loss after bariatric surgery (BS) was examined in 10 OA and 31 O subjects. We analyzed serum markers including leptin, adiponectin, TGF-?1, TNFR2, MCP-1, ezrin, YKL-40, ST2, IL-5, IL-9, and IL-18. Compared with HC subjects, the O group showed increased levels of leptin, TGF-?1, TNFR2, MCP-1, ezrin, YKL-40, and ST2; the OA group presented increased levels of MCP-1, ezrin, YKL-40, and IL-18, and the NOA group had increased levels of ezrin, YKL-40, IL-5, and IL-18. The higher adiponectin/leptin ratio in NOA with respect to OA subjects was the only significant difference between the two groups. IL-9 was the only cytokine with significantly higher levels in OA with respect to O subjects. TNFR2, ezrin, MCP-1, and IL-18 concentrations significantly decreased in O subjects after BS. O, OA, and NOA showed distinct patterns of systemic inflammation. Leptin and adiponectin are regulated in asthma by obesity-dependent and-independent mechanisms. Combination of asthma and obesity does not result in significant additive effects on circulating cytokine levels. © 2022 by the authors. Licensee MDPI, Basel, Switzerland

Infecções sexualmente transmissíveis na população ribeirinha: prevalência e comportamento de risco

Introduction: The riparians population is considered vulnerable to Sexually Transmitted Infections due to restrictions related to access to health, information and education.Objective: To analyze the prevalence of self-reported Sexually Transmitted Infections among the riparians population and associated sociodemographic and behavioral factors.Material and Method: Cross-sectional, analytical study, conducted with 250 riparians dwellers from João Pessoa, Paraiba state, from June to October 2019. Data were collected through interviews using a structured questionnaire. Logistic regression analysis was performed. The research was approved by the Research Ethics Committee under opinion number 3,340,273.Results: The prevalence of Sexually Transmitted Infections was 20.8%. Male ribs (OR=3.27; CI95%:1.74-6.15), who reported sexual intercourse with sex workers (OR=6.54; CI95%:3.05-14.0) and illicit drug use (OR 2.13; CI95%:1.10-4.13) were more likely to develop sexually transmitted infection.Conclusions: High prevalence of sexually transmitted infections and presence of risk behaviors among riparians. Screening, early diagnosis and health education is essential for discontinuation of the transmission chain.Introducción: La población ribereña se considera vulnerable a las infecciones de transmisión sexual debido a cambios relacionados con el acceso a la salud, la información y la educación.Objetivo: Analizar la prevalencia de infecciones de transmisión sexual autoinformadas en una población ribereña y los factores sociodemográficos y conductuales asociados.Material y Método: Estudio transversal, analítico, realizado con 250 habitantes ribereños de João Pessoa, en el estado de Paraíba, de junio a octubre de 2019. Los datos fueron recolectados a través de entrevistas mediante un cuestionario estructurado. Se realizó un análisis de regresión logística. La investigación fue aprobada por el Comité de Ética en Investigación con el dictamen número 3.340.273.Resultados: La prevalencia de Infecciones de Transmisión Sexual fue de 20,8%. Hombres habitantes de la ribera (OR = 3,27; IC del 95%: 1,74-6,15), que informaron haber tenido relaciones sexuales con una trabajadora sexual (OR = 6,54; IC del 95%: 3,05-14,0) y uso de drogas ilícitas (OR 2,13; IC del 95%: 1.10-4.13) disipación mayores posibilidades de desarrollar una infección de transmisión sexual.Conclusiones: Alta prevalencia de riesgo de transmisión sexual y presencia de tendencia de riesgo entre los habitantes de las riberas. El cribado, el diagnóstico precoz y la educación sanitaria son fundamentales para interrumpir la transmisión.Introdução: A população ribeirinha é considerada vulnerável às Infecções Sexualmente Transmissíveis devido às restrições relacionadas ao acesso à saúde, informação e educação.Objetivo: Analisar a prevalência de Infecções Sexualmente Transmissíveis autorreferidas entre a população ribeirinha e fatores sociodemográficos e comportamentais associados. Material e Método: Estudo transversal, analítico, realizado com 250 ribeirinhos de João Pessoa, no estado da Paraíba, no período de junho a outubro de 2019. Os dados foram coletados por meio de entrevista com a utilização de questionário estruturado. Realizou-se análise de regressão logística. A pesquisa foi aprovada pelo Comitê de Ética em Pesquisa sob número de parecer 3.340.273.Resultados: A prevalência de Infecções Sexualmente Transmissíveis foi de 20,8%. Ribeirinhos do sexo masculino (OR=3,27;IC95%: 1,74-6,15), que relataram relação sexual com profissional do sexo (OR=6,54;IC95%:3,05-14,0) e uso de droga ilícita (OR 2,13; IC95%: 1,10-4,13) apresentaram maiores chances de desenvolver alguma infecção sexualmente transmissível. Conclusões: Alta prevalência de infecções sexualmente transmissíveis e presença de comportamentos de risco entre os ribeirinhos. Rastreio, diagnóstico precoce e educação em saúde é fundamental para descontinuação da cadeia de transmissão

Evolutionary history, biogeography, and a new species of Sphoeroides (Tetraodontiformes: Tetraodontidae): how the major biogeographic barriers of the Atlantic Ocean shaped the evolution of a pufferfish genus

ABSTRACT: Tetraodontidae is the most speciose family of Tetraodontiformes and is represented by fish popularly known as pufferfishes. They are characterized by modified jaws with four dental plates and the ability to inflate their bodies. Tetraodontids are distributed throughout the world and have a wide range of habitat use. One of its genera, Sphoeroides, shows a biogeographical pattern, with 19 of its 21 species restricted to coastal regions of the Americas. Although represented in large-scale phylogenies, the evolutionary history and biogeography of the genus have not been explored in detail. The present study aims to understand the historical and biogeographic processes that shaped the evolutionary history of Sphoeroides. Including samples from all biogeographic regions of its occurrence, we reconstruct a phylogenetic/biogeographic history hypothesis for the genus. Our results show that Sphoeroides is a paraphyletic group comprising Colomesus; indicate a central role of the biogeographic barriers of the Atlantic Ocean in the diversification of the genus; and identified a cryptic species in Brazilian waters, formally known as S. spengleri, described here through integrative taxonomy. We also propose nomenclatural changes given the position of Colomesus deeply nested within Sphoeroides.info:eu-repo/semantics/publishedVersio

Sexual behavior of post-modern women and sexually transmitted infections: a review study / Comportamento sexual de mulheres pós-modernas e as infecções sexualmente transmissíveis: um estudo de revisão: a review study

Objective: to identify the scientific evidence available in the literature on the risky sexual behavior of women and the relationship with the occurrence of Sexually Transmitted. Method: integrative review of articles available in full, obtained from PubMed, EBSCO, Lilacs and Web os Science databases. Controlled descriptors and keywords “women” or “woman” or “female”, “sexually transmitted disease/transmission” or “sexually transmitted diseases/transmission” and “risky sexual behavior” or “unsafe sex” were used. Results: 794 studies were identified. Of there, thirteen studies composed the sample. Evidence showed that multiple sexual partners; the use of mobile apps to recruit partners; women who have sex with women regardless of sexual orientation; age disparity in relationships; intergenerational relationships are risky sexual behaviors among women. Conclusion: presence of new sexual risk behaviors among post-moderns women. Identify new and old risky sexual behaviors is critical for screening for sexually transmitted infections.Objetivo: identificar la evidencia científica disponible en la literatura sobre el comportamiento sexual de riesgo de las mujeres y la relación con la ocurrencia de Infecciones de Transmisión Sexual. Método: revisión integradora de artículos disponibles en su totalidad, obtenidos de las bases de datos PubMed, EBSCO, LILACS y Web of Science. Se utilizaron descriptores controlados y palabras clave “women” o “woman” o “female”, “sexually transmitted disease/transmission” o “sexually transmitted diseases/transmission” y “comportamento sexual de risco” o “unsafe sex” se utilizó. Resultados: se identificaron 794 estudios. De estos, trece estudios comprendieron la muestra. La evidencia mostró que múltiples parejas sexuales; el uso de aplicaciones móviles para reclutar socios; mujeres que tienen relaciones sexuales con mujeres independientemente de su orientación sexual; disparidad de edad en las relaciones; las relaciones intergeneracionales son comportamientos sexuales de riesgo entre las mujeres.  Conclusión: presencia de nuevos e comportamientos sexuales de riesgo entre mujeres posmodernas. Identificar comportamientos sexuales de riesgo nuevos y antiguos es fundamental para la detección de infecciones de transmisión sexualObjetivo: identificar as evidências científicas disponíveis na literatura sobre os comportamentos sexuais de risco de mulheres e a relação com a ocorrência de Infecções Sexualmente Transmissíveis. Método: revisão integrativa de artigos disponíveis na íntegra, obtidos nas bases PubMed, EBSCO, Lilacs e Web of Science. Foram utilizados descritores controlados e palavras-chave “women” ou “woman” ou “female”, “sexually transmitted disease/transmission” ou “sexually transmitted diseases/transmission” e “comportamento sexual de risco” ou “unsafe sex”. Resultados: foram identificados 794 estudos. Desses, treze estudos compuseram a amostra. As evidências mostraram que múltiplos parceiros sexuais; o uso de aplicativos móveis para recrutar parceiros; mulheres que fazem sexo com mulheres independente da orientação sexual; disparidade de idade em relacionamentos; relacionamentos intergeracionais são comportamentos sexuais de risco entre mulheres. Conclusão: presença de novos comportamentos sexuais de risco entre as mulheres pós-modernas. Identificar os novos e velhos comportamentos sexuais de risco é fundamental para o rastreio das infecções sexualmente transmissíveis.

The traditional knowledge on stingless bees (Apidae: Meliponina) used by the Enawene-Nawe tribe in western Brazil

<p>Abstract</p> <p>Background</p> <p>This paper presents the Enawene-Nawe Society's traditional knowledge about stingless bees. The Enawene-Nawe are an Aruak speaking people, indigenous to the Meridian Amazon. Specifically, they live in the Jurema River hydrological basin, located in the northwestern region of the Mato Grosso state.</p> <p>Methods</p> <p>The stingless bees were sampled from two ecologically similar regions in the interior of Enawene-Nawe Land. The first sampling took place around the village, i.e., adjacent to houses, by the edge of the Iquê River, next to food leftovers, around human excrement, and simply when the insects were found flying or reposing on a human body. The second round of sampling happened from 29/10 to 02/11/94, during an expedition for honey collection that took place throughout the ciliar bushes of the Papagaio River, an important tributary of Juruena River. We sampled bees adjacent to their nests following the beehive inspection or during the honey extraction.</p> <p>In this work, the main bee species of the sub tribe Meliponina, which were handled by the Enawene-Nawe, was identified, and a brief ethnographic description of the honey collection expeditions and its social-cosmologic meaning for the group was done.</p> <p>Results and Discussion</p> <p>Similar to other indigenous people in Brazil, the Enawene-Nawe recognized 48 stingless bee species. They identified each bee species by name and specified each one's ecological niche. A brief ethnographic description of the honey collection expeditions and bees' social-cosmologic meaning for the group is included.</p> <p>Conclusion</p> <p>We concluded that, as an example of other indigenous people, the Enawene-Nawe classify and identify the bees based not only on their structure and morphological aspects but also on the ecological, etiological, and social characteristics of the species.</p

Qualidade dos cuidados de enfermagem e satisfação do paciente atendido em um hospital de ensino

OBJECTIVES: assess the quality of nursing care, the patients' satisfaction and the correlation between both. METHOD: cross-sectional study, involving 275 patients hospitalized at a teaching hospital in the Central-West of Brazil. The data were collected through the simultaneous application of three instruments. Next, they were included in an electronic database and analyzed in function of the positivity, median value and Spearman's correlation coefficients. RESULTS: among the nursing care assessed, only two were considered safe - hygiene and physical comfort; nutrition and hydration - while the remainder were classified as poor. Nevertheless, the patients were satisfied with the care received in the domains assessed: technical-professional, confidence and educational. This can be justified by the weak to moderate correlation that was observed among these variables. CONCLUSION: Despite the quality deficit, the patients' satisfaction level with the nursing care received was high. These results indicate that the institution needs to center its objectives on a continuing evaluation system of the care quality, aiming to attend to the patients' expectations.OBJETIVOS: evaluar la calidad de los cuidados de enfermería, la satisfacción del paciente y la correlación entre ambos. MÉTODO: estudio trasversal con 275 pacientes internados en un hospital de enseñanza de la región Centro-Oeste de Brasil. Los datos fueron recolectados mediante la aplicación simultánea de tres instrumentos. A seguir, fueron digitalizados en un banco de datos electrónico y analizados en función de la positividad, valor de mediana y coeficientes de correlación de Spearman. RESULTADOS: entre los cuidados de enfermería evaluados, solamente dos fueron considerados seguros - higiene y conforto físico; nutrición e hidratación - y los demás clasificados como pobres. Sin embargo, los pacientes se mostraron satisfechos con los cuidados recibidos en los dominios evaluados: técnico-profesional, confianza y educacional. Eso puede ser justificado por la correlación débil a moderada observada entre esas variables. CONCLUSIÓN: A pesar del déficit de cualidad, fue encontrado alto nivel de satisfacción de los pacientes con los cuidados de enfermería recibidos. Tales resultados indican la necesidad de que la institución centre sus objetivos en un sistema de evaluación permanente de la cualidad del cuidado, visando atender a las expectativas de los pacientes.OBJETIVOS: avaliar a qualidade dos cuidados de enfermagem, a satisfação do paciente e a correlação entre ambos. MÉTODO: estudo transversal, realizado com 275 pacientes internados em um hospital de ensino da Região Centro-Oeste do Brasil. Os dados foram obtidos por meio da aplicação simultânea de três instrumentos. A seguir, foram digitados em banco de dados eletrônico e analisados em função da positividade, valor de mediana e coeficientes de correlação de Spearman. RESULTADOS: dentre os cuidados de enfermagem avaliados, apenas dois foram considerados seguros - higiene e conforto físico; nutrição e hidratação - e os demais foram classificados como pobres. Todavia, os pacientes mostraram-se satisfeitos com os cuidados recebidos nos domínios avaliados: técnico-profissional, confiança e educacional. Isso pode ser justificado pela correlação fraca a moderada observada entre essas variáveis. CONCLUSÃO: apesar do déficit de qualidade, houve alto nível de satisfação dos pacientes com os cuidados de enfermagem recebidos. Tais resultados apontam a necessidade de a instituição centrar seus objetivos num sistema de avaliação permanente da qualidade do cuidado, visando o atendimento das expectativas dos pacientes