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Purinergic signaling is a crucial determinant in the regulation of pulmonary vascular physiology and presents a promising avenue for addressing lung diseases. This intricate signaling system encompasses two primary receptor classes: P1 and P2 receptors. P1 receptors selectively bind adenosine, while P2 receptors exhibit an affinity for ATP, ADP, UTP, and UDP. Functionally, P1 receptors are associated with vasodilation, while P2 receptors mediate vasoconstriction, particularly in basally relaxed vessels, through modulation of intracellular Ca2+ levels. The P2X subtype receptors facilitate extracellular Ca2+ influx, while the P2Y subtype receptors are linked to endoplasmic reticulum Ca2+ release. Notably, the primary receptor responsible for ATP-induced vasoconstriction is P2X1, with α,ß-meATP and UDP being identified as potent vasoconstrictor agonists. Interestingly, ATP has been shown to induce endothelium-dependent vasodilation in pre-constricted vessels, associated with nitric oxide (NO) release. In the context of P1 receptors, adenosine stimulation of pulmonary vessels has been unequivocally demonstrated to induce vasodilation, with a clear dependency on the A2B receptor, as evidenced in studies involving guinea pigs and rats. Importantly, evidence strongly suggests that this vasodilation occurs independently of endothelium-mediated mechanisms. Furthermore, studies have revealed variations in the expression of purinergic receptors across different vessel sizes, with reports indicating notably higher expression of P2Y1, P2Y2, and P2Y4 receptors in small pulmonary arteries. While the existing evidence in this area is still emerging, it underscores the urgent need for a comprehensive examination of the specific characteristics of purinergic signaling in the regulation of pulmonary vascular tone, particularly focusing on the disparities observed across different intrapulmonary vessel sizes. Consequently, this review aims to meticulously explore the current evidence regarding the role of purinergic signaling in pulmonary vascular tone regulation, with a specific emphasis on the variations observed in intrapulmonary vessel sizes. This endeavor is critical, as purinergic signaling holds substantial promise in the modulation of vascular tone and in the proactive prevention and treatment of pulmonary vascular diseases.

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Background: Rheumatoid arthritis (RA) in elderly population represents a challenge for physicians in terms of therapeutic management. Methotrexate (MTX) is the first-line treatment among conventional synthetic-disease-modifying anti-rheumatic drugs (cs-DMARDs); however, it is often associated with adverse events (AEs). Therefore, the objective of this study was to identify the incidence and risk factors of MTX discontinuation due to AEs in elderly patients with RA in a long-term retrospective cohort study. Methods: Clinical sheets from elderly RA patients taking MTX from an outpatient rheumatology consult in a university centre were reviewed. To assess MTX persistence, we used Kaplan-Meir curves and Cox regression models to identify the risk of withdrawing MTX due to adverse events. Results: In total, 198 elderly RA patients who reported using MTX were included. Of them, the rates of definitive suspension of MTX due to AEs were 23.0% at 5 years, 35.6% at 10 years and 51.7% at 15 years. The main organs and system involved were gastrointestinal (15.7%) and mucocutaneous (3.0%). Factors associated with withdrawing MTX due to AEs were MTX dose ≥ 15 mg/wk (adjusted HR: 2.46, 95% CI: 1.22-4.96, p = 0.012); instead, the folic acid supplementation was protective for withdrawal (adjusted HR: 0.28, 95% CI: 0.16-0.49, p < 0.001). Conclusions: Higher doses of MTX increase the risk of withdrawals in elderly RA, while folic acid supplementation reduces the risk. Therefore, physicians working in therapeutic management for elderly patients using MTX must focus on using lower MTX doses together with the concomitant prescription of folic acid.

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There is growing interest in using autochthonous lactic acid bacteria (LAB) that provide unique sensory characteristics to dairy products without affecting their safety and quality. This work studied the capacity of three Brazilian indigenous nonstarter LABs (NSLAB) to produce biogenic amines (BAs) and evaluated their effect on the volatile organic compounds (VOCs), microbial LAB communities, and physicochemical profile of short-aged cheese. Initially, the strain's potential for biosynthesis of BAs was assessed by PCR and in vitro assays. Then, a pilot-scale cheese was produced, including the NSLAB, and the microbial and VOC profiles were analyzed after 25 and 45 days of ripening. As a results, the strains did not present genes related to relevant BAs and did not produce them in vitro. During cheese ripening, the Lactococci counts were reduced, probably in the production of alcohols and acid compounds by the NSLAB. Each strain produces a unique VOC profile that changes over the ripening time without the main VOCs related to rancid or old cheese. Particularly, the use of the strain Lacticaseibacillus. paracasei ItalPN16 resulted in production of ester compounds with fruity notes. Thus, indigenous NSLAB could be a valuable tool for the enhancement and diversification of flavor in short-aged cheese.

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Background and Objectives: According to the Third International Consensus Definitions for Sepsis and Septic Shock (Sepsis-3), sepsis is defined as "life-threatening organ dysfunction caused by a dysregulated host response to infection". The increased presence of free radicals causes an increase in oxidative stress. Vitamin C is an essential water-soluble vitamin with antioxidant activity and immunoregulatory effects that plays a potential role in the treatment of bacterial infections. Our aim was to evaluate the effectiveness of adding vitamin C to the conventional treatment of sepsis to decrease its mortality rate. Materials and Methods: In a prospective cohort study, we included patients with a diagnosis of sepsis and a SOFA score ≥ 9 who were evaluated in an Intensive Care Unit at a secondary-care hospital. According to the intensive care specialist, they were treated using two different strategies: Group 1-patients with sepsis treated with conventional treatment without vitamin C; Group 2-patients with sepsis with the addition of vitamin C to conventional treatment. Results: We included 34 patients with sepsis. The incidence of mortality was 38%, and 47% of patients used vitamin C as an adjuvant to the basic treatment of sepsis. In the basal analyses, patients treated with use of vitamin C compared to patients treated without vitamin C required less use of glucocorticoids (75% vs. 100%, p = 0.039). At follow-up, patients treated without vitamin C had higher mortality than patients treated with vitamin C as an adjuvant for the treatment of sepsis (55.6% vs. 18.8%, p = 0.03). We observed that the use of vitamin C was a protective factor for mortality in patients with sepsis (RR: 0.54, 95% CI: 0.31-0.96, p = 0.03). Conclusions: The use of vitamin C as an adjuvant to treatment decreases the risk of mortality by 46% in patients with sepsis and SOFA ≥ 9 compared to patients treated without vitamin C as an adjuvant to sepsis.

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Objetivo: verificar la validez clínica de la proposición de un nuevo diagnóstico de enfermería denominado sed perioperatoria, basado en la precisión diagnóstica de sus indicadores clínicos, incluyendo la magnitud del efecto de sus factores etiológicos. Método: estudio de validación clínica diagnóstica con 150 pacientes quirúrgicos en un hospital universitario. Se recogieron variables sociodemográficas e indicadores clínicos relacionados con la sed. Se utilizó la técnica de análisis de clases latentes. Resultados: se propusieron dos modelos de clases latentes para las características definitorias. El modelo ajustado en el preoperatorio incluía: labios resecos, saliva espesa, lengua espesa, ganas de beber agua, informe del cuidador, garganta seca y deglución constante de saliva. En el postoperatorio: sequedad de garganta, saliva espesa, lengua espesa, constante deglución de saliva, ganas de beber agua, mal gusto en la boca. Los factores relacionados "temperatura ambiente elevada" y "sequedad de boca" se asocian a la presencia de sed, así como las condiciones asociadas "uso de anticolinérgicos" e "intubación". La prevalencia de sed fue del 62,6% en el preoperatorio y del 50,2% en el postoperatorio inmediato. Conclusión: la proposición diagnóstica de la sed perioperatoria mostró buenos parámetros de precisión de sus indicadores clínicos y efectos etiológicos. Esta propuesta en una taxonomía de enfermería permitirá una mayor visibilidad, apreciación y tratamiento de este síntoma.

Objective: to verify the clinical validity of the proposition of a new nursing diagnosis called perioperative thirst, based on the diagnostic accuracy of its clinical indicators, including the magnitude of effect of its etiological factors. Method: clinical diagnostic validation study with a total of 150 surgical patients at a university hospital. Sociodemographic variables and clinical indicators related to thirst were collected. The latent class analysis technique was used. Results: two models of latent classes were proposed for the defining characteristics. The model adjusted preoperatively included: dry lips, thick saliva, thick tongue, desire to drink water, caregiver report, dry throat and constant swallowing of saliva. In the postoperative period: dry throat, thick saliva, thick tongue, constant swallowing of saliva, desire to drink water, bad taste in the mouth. The factors related to "high ambient temperature" and "dry mouth" are associated with the presence of thirst, as well as the associated conditions "use of anticholinergics" and "intubation". The prevalence of thirst was 62.6% in the pre and 50.2% in the immediate postoperative period. Conclusion: the diagnostic proposition of perioperative thirst showed good accuracy parameters for its clinical indicators and etiological effects. This proposition in a nursing taxonomy will allow greater visibility, appreciation and treatment of this symptom.

Objetivo: verificar a validade clínica da proposição de um novo diagnóstico de enfermagem denominado sede perioperatória, com base na acurácia diagnóstica de seus indicadores clínicos, incluindo a magnitude de efeito de seus fatores etiológicos. Método: estudo de validação clínica diagnóstica com 150 pacientes cirúrgicos em um hospital universitário. Foram coletadas variáveis sociodemográficas e indicadores clínicos relacionados à sede. Empregou-se a técnica de análise de classe latente. Resultados: dois modelos de classes latentes foram propostos para as características definidoras. O modelo ajustado no pré-operatório incluiu: lábios ressecados, saliva grossa, língua grossa, vontade de beber água, relato do cuidador, garganta seca e constante deglutição de saliva. No pós-operatório: garganta seca, saliva grossa, língua grossa, constante deglutição de saliva, vontade de beber água, gosto ruim na boca. Os fatores relacionados Temperatura do ambiente elevada e Boca seca estão associados à presença de sede, assim como as condições associadas Utilização de anticolinérgicos e Intubação. A prevalência de sede foi de 62,6% no pré-operatório e 50,2% no pós-operatório imediato. Conclusão: a proposição diagnóstica de sede perioperatória apresentou bons parâmetros de acurácia de seus indicadores clínicos e efeitos etiológicos. Essa proposição em uma taxonomia de enfermagem permitirá maior visibilidade, valorização e tratamento desse sintoma.

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OBJECTIVE: to verify the clinical validity of the proposition of a new nursing diagnosis called perioperative thirst, based on the diagnostic accuracy of its clinical indicators, including the magnitude of effect of its etiological factors. METHOD: clinical diagnostic validation study with a total of 150 surgical patients at a university hospital. Sociodemographic variables and clinical indicators related to thirst were collected. The latent class analysis technique was used. RESULTS: two models of latent classes were proposed for the defining characteristics. The model adjusted preoperatively included: dry lips, thick saliva, thick tongue, desire to drink water, caregiver report, dry throat and constant swallowing of saliva. In the postoperative period: dry throat, thick saliva, thick tongue, constant swallowing of saliva, desire to drink water, bad taste in the mouth. The factors related to "high ambient temperature" and "dry mouth" are associated with the presence of thirst, as well as the associated conditions "use of anticholinergics" and "intubation". The prevalence of thirst was 62.6% in the pre and 50.2% in the immediate postoperative period. CONCLUSION: the diagnostic proposition of perioperative thirst showed good accuracy parameters for its clinical indicators and etiological effects. This proposition in a nursing taxonomy will allow greater visibility, appreciation and treatment of this symptom.(1) Evaluates the accuracy of the proposition of the nursing diagnosis perioperative thirst; (2) Allows refined diagnosis for use in clinical practice, teaching and research; (3) Strengthens the systematization of perioperative nursing care; (4) Highlights thirst management as part of care, considering its high prevalence and discomfort; (5) Presents a structure with good accuracy parameters which are representative of thirst.

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A protocol was optimized to determine the volatile profile from monovarietal virgin olive oil (VOO) by multiple headspace solid-phase microextraction (MHS-SPME) followed by gas chromatography-mass spectrometry (GC-MS) analysis. For this, a Plackett-Burman (PB) and central composite rotational designs (CCRD) were used to define the best condition of extraction. Moreover, fatty acids profile and principal component analysis (PCA) was used to identify markers among the cultivars. The amount of 0.1 g of sample was enough to express the volatile composition of the olive oils by MHS-SPME. Volatile compounds [nonanal, (Z)-3-Hexen-1-ol, (Z)-3-Hexenyl Acetate, Hexyl Acetate, 3-Methylbutyl Acetate, (E)-2-Hexen-1-ol, (E)-2-Hexenyl Acetate] and fatty acids [C17:1, C18, C18:1, C18:2] were those reported such as the markers in the varieties of olive oils. The PCA analysis allowed the classification of the most representative volatiles and fatty acids for each cultivar. Through two principal components was possible to obtain 81.9% of explanation of the variance of the compounds. The compounds were quantified using a validated method. The MHS-SPME combined with multivariate analysis showed a promising tool to identify markers and for the discrimination of olive oil varieties.

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OBJECTIVE: To implement the preoperative Thirst Management Model, measuring its adoption, coverage, acceptability, feasibility and fidelity by nursing in a burn unit. METHOD: Quasi-experimental, pre- and post-test intervention study. Sample of 59 patients at pre-implementation and 40 post-implementation and 36 nursing professionals participating in the implementation in a burn unit from August (2019) to March (2020). Statistical analysis used Mann-Whitney and Chi-square. RESULTS: Adoption of management ranged from 0.0% to 72.5% post-implementation. The capacity coverage was 87.5% of nurses and 87.9% of nursing technicians. There was acceptability and feasibility of thirst management by professionals. In the plan-do-study-act cycles, three pillars of the Model reached the goals, showing fidelity. CONCLUSION: The implantation of the Preoperative Thirst Management Model had acceptability and feasibility by the nursing team, showing fidelity in achieving the proposed goals, in addition to the adoption of evidence in clinical practice after high coverage professional training.

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The use of complementary therapies is highly prevalent among patients with rheumatoid arthritis (RA). Nevertheless, the use of complementary medicine could involve problems in the following of scientifically accepted treatments. To date, there is limited information regarding the association of nonconventional therapies with problems regarding compliance with the treatment. Therefore, the objective of this study was to identify whether the utilization of complementary therapies is associated with a high risk of problems regarding therapeutic adherence to conventional synthetic disease-modifying anti-rheumatic drugs (cs-DMARDs) in RA patients. A survey was performed with RA patients in an outpatient rheumatology clinic in a university hospital; the use of complementary therapies, as well as their type, was identified. To assess problems with therapeutic adherence, we used the four-item Morisky-Green scale. A comprehensive assessment of clinical and therapeutic characteristics was performed. Univariable and multivariable models were performed to identify the risk of problems with therapeutic adherence in users of complementary therapies. In total, 250 RA patients were included; 92% used complementary therapies. Of them, the most frequently used were herbal medicine (65%), homeopathy (64%), and cannabis and its derivatives (51%). In the univariable logistic regression analysis, the factors associated with problems in the therapeutic adherence to cs-DMARDs were age (p = 0.019), the presence of other comorbidities (p = 0.047), and the use of complementary therapies (p = 0.042). After controlling for potential confounders, the use of complementary therapies increased the risk of problems with therapeutic adherence to cs-DMARDs (adjusted OR = 2.84, 95% CI = 1.06-7.63, p = 0.037). We concluded that the use of complementary therapies increases the risk of problems with therapeutic adherence. Therefore, for physicians and healthcare professionals, the early identification of the use of nonconventional therapies in their RA patients is required, followed by a directed discussion with their patients about the risks and benefits to which they could be exposed to complementary therapies.

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ABSTRACT Objective: to report the path taken to implement the Thirst Management Model using the Knowledge Translation Evidence-based Practice for Improving Quality intervention in a Burn unit. Method: an experience report on the implementation, which took place in two stages: Preparation; and Implementation/Change, both requiring a sequence of steps. Results: the implementation was performed in four cycles of the PDSA improvement tool. All had the same indicator collected, with increasing goals to be attained. Considering the barriers identified, multiple combined Knowledge Translation strategies were used, namely: posters; theoretical and practical training sessions, individual or in group; videos; dynamics; music; logo development for implementation visibility; audit and feedback; and didactic and illustrated clinical protocols. Conclusion: the report of the entire implementation process using the Evidence-based Practice for Improving Quality intervention, pointing out its weaknesses and strengths, proves to be useful, necessary and innovative. This study may assist in future evidence-based implementations that choose to use multifaceted interventions.

RESUMEN Objetivo: informar el camino recorrido para implementar el Modelo de Manejo de la Sed recurriendo a la intervención Knowledge Translation llamada Evidence-based Practice for Improving Quality (Práctica Basada en Evidencia para Mejorar la Calidad) en una unidad especializada en Quemaduras. Método: informe de experiencia sobre la implementación, que tuvo lugar en dos etapas: Preparación e Implantación/cambio, ambas obedeciendo una secuencia de pasos para su realización. Resultados: la implementación se realizó en cuatro ciclos de la herramienta de mejoras PDSA. En todos los ciclos se recolectó el mismo indicador, con metas crecientes por alcanzar. Considerando las barreras identificadas, se utilizaron múltiples estrategias combinadas de Knowledge Translation, a saber: posters; sesiones de capacitación teóricas y prácticas, individuales o en grupo, videos, dinámicas, música, desarrollo de un logotipo para conferir visibilidad a la implementación; auditoría y feedback; y protocolos clínicos didácticos e ilustrados. Conclusión: el informe de la totalidad del proceso de implementación recurriendo a la intervención Evidence-based Practice for Improving Quality, incluso señalando sus debilidades y puntos fuertes, demuestra que es útil, necesaria e innovadora. Este estudio pode auxiliar futuras implementaciones de evidencias que decidan utilizar intervenciones multifacéticas.

RESUMO Objetivo: Relatar o caminho percorrido para a implantação do Modelo de Manejo da Sede com o uso da intervenção de Knowledge Translation Evidence-based Practice for Improving Quality (Prática Baseada em Evidência para a Melhoria do Processo de Qualidade) em uma unidade de queimados. Método: Relato de experiência sobre a implantação que ocorreu em duas etapas: Preparação e Implantação/ mudança, ambas obedecendo uma sequência de passos para sua realização. Resultados: A implementação foi realizada em quatro ciclos da ferramenta de melhoria PDSA. Todos tiveram o mesmo indicador coletado, com metas crescentes a serem alcançadas. Considerando as barreiras identificadas, utilizaram-se múltiplas estratégias combinadas de Knowledge Translation: cartazes, capacitações teóricas e práticas, individuais ou em grupo, vídeos, dinâmicas, músicas, desenvolvimento de logo para visibilidade da implantação, auditoria e feedback, protocolos clínicos didáticos e ilustrados. Conclusão: O relato de todo o processo de implantação com o uso da intervenção Evidence-based Practice for Improving Quality, apontando suas fragilidades e fortalezas, mostra-se útil, necessária e inovador. Este estudo pode auxiliar futuras implantações de evidências que escolham utilizar intervenções multifacetadas.

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A gravidez representa um período de profundas alterações fisiológicas, inclusive psicológicas. A pandemia de covid-19 impactou a saúde mental de muitas gestantes, em decorrência das taxas de mortalidade e do isolamento social. Isso gerou uma grande preocupação no âmbito da saúde pública, devido às consequências negativas que esse problema pode causar tanto para a mãe quanto para o feto. O objetivo deste artigo foi identificar na literatura científica as repercussões da covid-19 na saúde mental das gestantes. Trata-se de uma revisão integrativa, realizada nas bases de dados Medline, Lilacs e BDENF, por meio da Biblioteca Virtual em Saúde (BVS), a partir dos descritores em ciência da saúde (DeCS): covid-19, gravidez e saúde mental. Foram adotados como critérios de inclusão: artigos nos idiomas português, inglês ou espanhol, com texto completo, disponíveis online e que abordassem a temática nos anos de 2020, 2021 e 2022. Os critérios de exclusão foram: artigos repetidos, incompletos nas bases de dados, artigos de revisão, teses, dissertações, capítulos de livro e estudos que não abordassem a temática selecionada. Foram identificadas na literatura científica as principais repercussões da covid-19 na saúde mental de mulheres grávidas: ansiedade, estresse, preocupação e depressão. Evidencia-se que os impactos da covid-19 na saúde mental das gestantes podem ser percebidos pelo aumento na incidência de ansiedade, depressão, estresse e medo entre esse público.

Pregnancy is a period of profound physiological and psychological changes. The COVID-19 pandemic affected the mental health of many pregnant women due to mortality rates and social distancing, generating great concern in the field of public health given its negative implications to both the mother and the fetus. Thus, this integrative review sought to identify the COVID-19-related repercussions on the mental health of pregnant women. Bibliographic search was conducted on the MEDLINE, LILACS and BDENF databases, via the Virtual Health Library (BVS), based on the following health science descriptors (DeSC): "COVID-19," "pregnancy" and "mental health." Inclusion criteria consisted of articles published in Portuguese, English or Spanish, available online in full and that addressed the topic in the years 2020, 2021 and 2022. Duplicates, incomplete texts, review articles, theses, dissertations, book chapters and studies addressing other topics were excluded. According to the analyzed literature, anxiety, stress, worry and depression were the main COVID-19 repercussions on pregnant women. The impacts of COVID-19 on the mental health of pregnant women can be identified by the increased anxiety and depression, as well as stress and fear, symptoms among pregnant women.

El embarazo representa un período con profundos cambios fisiológicos, incluso psicológicos. Durante la pandemia del covid-19, muchas mujeres embarazadas sufrieron impactos en la salud mental, producto de las tasas de mortalidad y aislamiento social. En el campo de la salud pública, esto generó una gran preocupación por las implicaciones negativas que esta problemática puede traer tanto para la madre como para el feto. El objetivo de este estudio fue identificar en la literatura científica las repercusiones del covid-19 en la salud mental de las embarazadas. Se trata de una revisión integradora, realizada en las bases de datos Medline, Lilacs y BDENF por medio de la Biblioteca Virtual en Salud (BVS), con base en los Descriptores en Ciencias de la Salud (DeSC): Covid-19; embarazo y salud mental. Los criterios de inclusión fueron artículos en portugués, inglés o español, con texto completo, disponibles en línea y que abordaron el tema en los años 2020, 2021 y 2022. Los criterios de exclusión fueron artículos repetidos, incompletos en las bases de datos, artículos de revisión, disertaciones, tesis, capítulos de libros y estudios que no aborden el tema seleccionado. Se identificaron en la literatura científica las principales repercusiones del covid-19 en la salud mental de las embarazadas: ansiedad, estrés, preocupación y depresión. Se evidencia que los impactos del covid-19 en la salud mental de esta población pueden ser percibidos por el aumento de la incidencia de ansiedad, depresión, estrés y miedo entre las embarazadas.

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This article presents a case of rapidly progressive glomerulonephritis following the Oxford-AstraZeneca COVID-19 vaccine in a female patient 58 years old. After 5 days, she presented fatigue, paleness, arthralgia on hands, knees, ankles, foamy urine, and elevated blood pressure. Exams showed serum creatinine of 2.2 mg/dL (baseline creatinine of 1.0 mg/dL). Urinalysis revealed hematuria, and her 24-h urinary protein excretion was 4.4 g. Additional exams showed hypercholesterolemia, severe anemia, and normal serum albumin. Testing of antineutrophil cytoplasmic antibodies anti-myeloperoxidase was positive at a titer of 1/80. Serum and urine protein electrophoresis and other exams showed no alterations. She was started on steroid pulse therapy after worsening kidney function, reaching serum creatinine of 3.3 mg/dL. A kidney biopsy revealed crescentic glomerulonephritis with glomerular sclerosis, fibrous crescents, interstitial fibrosis, and tubular atrophy. Induction therapy was given with intravenous cyclophosphamide 0.5 g/m2 for 6-monthly pulses, followed by maintenance therapy with oral azathioprine at 2 mg/kg and prednisone tapering. The patient did not develop any complications during the induction therapy, and is currently on maintenance therapy with a serum creatinine of 1.87 mg/dL.

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Abstract Eccrine poroma is the term that includes benign neoplasms of the terminal duct of the eccrine sweat glands, which may clinically and dermoscopically resemble other melanoma and non-melanoma skin tumors. They are often located on the extremities (especially palms and soles), presenting as normochromic or erythematous papules and nodules, measuring up to 2 cm. Pigmented variants are uncommon, accounting for less than 20% of cases. This report describes a 37-year-old man who developed a large pigmented eccrine poroma on his right shoulder, causing diagnostic difficulty. Histopathological examination revealed a nodular neoplasm consisting of small, monomorphic, cuboidal cells, with ample, eosinophilic cytoplasm and well-defined borders, in addition to conspicuous intercellular bridges, with melanin deposits diffusely distributed inside them. The absence of cytological atypia, cellular pleomorphism, increased mitotic activity, and necrosis foci corroborated the diagnostic exclusion of porocarcinoma, which can develop from eccrine poroma.

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A relação entre a origem de neoplasias e o estresse vem sendo objeto de estudo na literatura. Desde as primeiras investigações acerca da delimitação do gênero no processo do estresse é revelado ser mulher como uma variável significativa que leva ao adoecimento. O objetivo deste estudo é analisar na literatura se os fatores estressores vivenciados por mulheres influenciam no desenvolvimento de neoplasias malignas e identificar os fatores mais comuns associados a esse desenvolvimento. Trata-se de uma revisão integrativa realizada nas bases de dados SciELO, LILACS, BDENF, MEDLINE, e nas bibliotecas PubMed e BVS. Foram utilizados DeCS e MeSH para auxiliar na busca. Estabeleceram-se 11 artigos como corpus de análise que abordam a relação estresse-câncer em mulheres e sinalizaram estressores associados. Apesar da rede de estudos que apontam a relação do efeito do estresse no organismo e a ativação de componentes neuroendócrinos que impactam o surgimento de quadros neoplásicos, o entendimento da cadeia de reações químicas e resposta do metabolismo aos estímulos estressores ainda é complexo, demonstrando a necessidade da ampliação de estudos. É evidente a importância do acompanhamento ativo da saúde da mulher, além de atentar-se para minimizar fatores estressores e prevenir doenças relacionadas ao estresse.

The relationship between the origin of neoplasms and stress has been studied in the literature. Since the first investigations about the delimitation of gender in the stress process, being a woman has been revealed as a significant variable that leads to illness. The aim of this study is to analyze in the literature whether the stressors experienced by women influence the development of malignant neoplasms and to identify the most common factors associated with this development. This is an integrative review carried out in the SciELO, LILACS, BDENF, MEDLINE databases, and in the PubMed and VHL libraries. DeCS and MeSH were used to assist in the search. A total of 11 articles were established as a corpus of analysis that address the stress-cancer relationship in women and signaled associated stressors. Despite the network of studies that point to the relationship between the effect of stress on the body and the activation of neuroendocrine components that impact the appearance of neoplastic conditions, understanding the chain of chemical reactions and metabolism response to stressful stimuli is still complex, demonstrating the need to expand studies. The importance of actively monitoring women's health is evident, in addition to taking care to minimize stressors and prevent stress-related diseases.

La relación entre el origen de las neoplasias y el estrés ha sido estudiada en la literatura. Desde las primeras investigaciones sobre la delimitación del género en el proceso de estrés, ser mujer se ha revelado como una variable significativa que conduce a la enfermedad. El objetivo de este estudio es analizar en la literatura si los estresores experimentados por las mujeres influyen en el desarrollo de neoplasias malignas e identificar los factores más comunes asociados a este desarrollo. Esta es una revisión integradora, realizada en las bases de datos SciELO, LILACS, BDENF, MEDLINE, y en las bibliotecas PubMed y BVS. Se utilizaron DeCS y MeSH para ayudar en la búsqueda. Se establecieron 11 artículos como corpus de análisis que abordan la relación estrés-cáncer en mujeres y señalan estresores asociados. A pesar de la red de estudios que apuntan a la relación entre el efecto del estrés en el organismo y la activación de componentes neuroendocrinos que impactan en la aparición de condiciones neoplásicas, el conocimiento de la cadena de reacciones químicas y la respuesta del metabolismo a los estímulos estresantes es aún complejo, lo que demuestra que se necesita la ampliación de estudios. Queda evidente la importancia de monitorear activamente la salud de la mujer, además de minimizar los factores estresantes y prevenir enfermedades relacionadas con el estrés.

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Eccrine poroma is the term that includes benign neoplasms of the terminal duct of the eccrine sweat glands, which may clinically and dermoscopically resemble other melanoma and non-melanoma skin tumors. They are often located on the extremities (especially palms and soles), presenting as normochromic or erythematous papules and nodules, measuring up to 2 cm. Pigmented variants are uncommon, accounting for less than 20% of cases. This report describes a 37-year-old man who developed a large pigmented eccrine poroma on his right shoulder, causing diagnostic difficulty. Histopathological examination revealed a nodular neoplasm consisting of small, monomorphic, cuboidal cells, with ample, eosinophilic cytoplasm and well-defined borders, in addition to conspicuous intercellular bridges, with melanin deposits diffusely distributed inside them. The absence of cytological atypia, cellular pleomorphism, increased mitotic activity, and necrosis foci corroborated the diagnostic exclusion of porocarcinoma, which can develop from eccrine poroma.

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OBJECTIVES: to evaluate the effectiveness of carbohydrate popsicles, carbohydrate solution, and usual care (fasting) on the intensity and discomfort of preoperative thirst. METHODS: a randomized clinical trial with 60 preoperative patients aged between 18 and 60 years, randomized into three groups: control (fasting), carbohydrate solution (100 ml), and carbohydrate popsicle (100 ml). The outcomes were thirst intensity and discomfort. RESULTS: there was a difference between groups for final thirst intensity (p = 0.01) and final thirst discomfort (p = 0.001). The effect size for both the Solution Group and the Popsicle Group was robust: 0.99 and 1.14, respectively. CONCLUSIONS: the groups that received the carbohydrate fasting abbreviation showed a reduction in thirst discomfort compared to the control group. The carbohydrate popsicle proved more effective in reducing the intensity of thirst. NCT: 3.209.283.

Assuntos

RESUMO

Background: Myostatin is a regulator of muscle size. To date, there have been no published studies focusing on the relation between myostin levels and myopenia in rheumatoid arthritis (RA). Objective: Evaluate the value of serum myostatin as a biomarker of cachexia and low skeletal muscle mass (LSMM) in RA patients, along with whether high serum myostatin is associated to these conditions after adjusting for potential confounders. Methods: This cross-sectional study included 161 female RA patients and 72 female controls. In the RA group, we assessed several potential risk factors for LSMM and rheumatoid cachexia. Dual-energy X-ray absorptiometry was used to quantify the skeletal muscle mass index (SMMI) (considering LSMM ≤ 5.5 kg/m2) and the presence of rheumatoid cachexia (a fat-free mass index ≤ 10 percentile and fat mass index ≥ 25 percentile of the reference population). Serum myostatin concentrations were determined by ELISA. To identify a cut-off for high serum myostatin levels, we performed ROC curve analysis. Multivariable logistic regression analysis was used to identify the risk factors for LSMM and rheumatoid cachexia. The risk was expressed as odds ratios (ORs) and their 95% confidence intervals (95% CIs). Results: Compared to the controls, the RA group had a higher proportion of LSMM and exhibited high serum myostatin levels (p < 0.001). ROC curve analysis showed that a myostatin level ≥ 17 ng/mL was the most efficient cut-off for identifying rheumatoid cachexia (sensitivity: 53%, specificity: 71%) and LSMM (sensitivity: 43%, specificity: 77%). In the multivariable logistic regression, RA with high myostatin levels (≥17 ng/mL) was found to increase the risk of cachexia (OR = 2.79, 95% CI: 1.24-6.29; p = 0.01) and LSMM (OR = 3.04, 95% CI: 1.17-7.89; p = 0.02). Conclusions: High serum myostatin levels increase the risk of LSMM and rheumatoid cachexia. We propose that high myostatin levels are useful biomarkers for the identification of patients in risk of rheumatoid cachexia and myopenia.

Assuntos

RESUMO

The processing of cupuassu (Theobroma grandiflorum Schum) beans after fermentation gives a chocolate-like product, the cupulate. The high amount of pulp adhered to the seeds hinders the fermentation. Consequently, it is necessary to depulp the seeds to perform the process, even though the pulp contains important substrates for the formation of flavor precursors. To verify whether the complete or partial removal of the pulp influences the sensory characteristics of the product, fermentation was performed with three pulp concentrations (0, 7.5, and 15%) and two schemes of turning for aeration of the mass: fixed (R1) and according to the temperature (R2), in a total of six experiments (0R1, 0R2, 7.5R1, 7.5R2, 15R1 and 15R2). The beans were processed to obtain cupulates, which were submitted to tests performed with consumers, to express their preference and attributes (acceptance, purchase intent, Check All That Apply - CATA), and then to tests with a trained panel, the Quantitative Descriptive Profile (QDP) to characterize the samples. Both tests showed the consumers' perceptions that the cupulates have peculiar sensory characteristics. In the Consumer Test, through the Preference Mapping, all the samples of cupulates obtained from R1 conditions were preferred. In the penalty analysis, these same samples showed positive attributes that mask the negative attributes. Both CATA and QDP results showed that cupulate samples produced from seeds with a higher amount of pulp (15R1 and 15R2) had a higher number of positive mentions, for their fruity and floral flavors. The research also demonstrated that all samples gave the perception of an earthy taste, an important reason for consumer rejection, as well as a bad residual flavor. Thus, the results showed that the presence of the pulp in the fermentation environmental is important to the formation of flavor compounds and improving the sensory acceptance of the products.

Assuntos