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Severe obesity is linked to a low-grade inflammatory process due to enlarged adipose tissue, resulting in elevated pro-inflammatory cytokines. Bariatric surgery induces anatomical changes, causing intestinal inflammation marked by anti-Saccharomyces cerevisiae (ASCA) antibodies. This study aimed to assess ASCA IgG/IgA levels preoperatively and 12 months post-surgery, correlating them with systemic inflammation markers (IL-6, CRP, MCP-1). Participants (BMI > 35 kg/m2) were recruited in South Brazil. Severe obesity individuals showed elevated IL-6 (p = 0.002), CRP (p

Background: Portugal's health workforce has been described as an inefficient mix of resources, impacting productivity and access to health services. To address these issues, stakeholders have advocated for Advanced Practice Nursing (APN) to strengthen the nursing role and improve service delivery. Aim: To analyze the relevance, pertinence, feasibility, and main barriers and facilitators of APN implementation in Portugal. Methods: A scoping review was conducted in the CINAHL, MEDLINE Complete, PubMed, and ScienceDirect databases for peer-reviewed articles in English and Portuguese, published after 2000, on human resource configurations in health and nursing role expansion in Portugal. A review of grey literature further complemented the research. Results: A total of 59 studies (43 international, 16 national), 31 technical reports (17 international, 14 national), seven press articles, and two theses were screened. Findings were grouped into themes of APN conceptualization, regulation, barriers and facilitators, and funding. APN implementation depends on a consensus regarding APN conceptualization, regulation, and scope of practice. Key barriers include medical opposition, limited political commitment, and lack of comprehensive data on APNs' social and financial impact in Portugal. Conclusions: The implementation of Advanced Practice Nursing in Portugal is relevant and necessary, though its feasibility depends on strong leadership, political commitment, and consensus among stakeholders. Further research is essential to assess APNs' social and economic impacts within the Portuguese healthcare system.

A equação escalar de Helmholtz descreve os harmônicos-temporais de ondas acústicas. É bem conhecido que métodos de diferenças finitas e elementos finitos apresentam o efeito de poluição do erro para números de onda médio e alto. Neste trabalho são analisados três novos esquemas de diferenças finitas centradas de segunda ordem de precisão em uma e duas dimensões. Esses novos esquemas são consistentes e foram obtidos realizando novas aproximações apenas no segundo termo da equação de Helmholtz. A análise de dispersão, o comportamento do erro e os resultados numéricos mostram o bom desempenho dos Novos Esquemas 2 e 3. O Novo Esquema 3 é capaz de eliminar o efeito de poluição do erro em uma dimensão e minimizar a dispersão da onda plana em duas dimensões.

ABSTRACT Seaweed extract-based fertilizers are applied to mitigate the effects of stress on plants. In this study, we evaluated the effects of different concentrations of seaweed extract-based fertilizer and different irrigation depths on potato crops. The Ágata cultivar and the Markies cultivar were used to conduct two experiments simultaneously. A 4 × 4 experimental design was used, with four doses of seaweed extract-based fertilizer (0, 0.5, 1.0, and 4.0 L ha-1) and four irrigation depths (50%, 75%, 100%, and 125% of crop evapotranspiration); each treatment had three replicates. Leaves were collected 67 days after emergence to analyze macronutrients and micronutrients; additionally, the number of stems per plant and physiological variables were assessed. After harvesting, the number and weight of tubers in different classes were recorded. The differences in parameters among treatment groups were determined by analysis of variance using the F-test, and regression analysis was performed when a significant difference was recorded. The results showed that the contents of potassium, phosphorus, magnesium, and calcium in the leaves of the Ágata cultivar were below the optimal levels for the crop, irrespective of the irrigation level and the dose of seaweed extract-based fertilizer applied. The highest irrigation depths at 100% and 125% of crop evapotranspiration were associated with an increase in the number and weight of the large tubers of the Ágata and Markies cultivars.

Background: The optimal amount for initial fluid resuscitation is still controversial in sepsis and the contribution of non-resuscitation fluids in fluid balance is unclear. We aimed to investigate the main components of fluid intake and fluid balance in both survivors and non-survivor patients with septic shock within the first 72 hours. Methods: In this prospective observational study in two intensive care units, we recorded all fluids administered intravenously, orally, or enterally, and losses during specific time intervals from vasopressor initiation: T1 (up to 24 hours), T2 (24 to 48 hours) and T3 (48 to 72 hours). Logistic regression and a mathematical model assessed the association with mortality and the influence of severity of illness. Results: We included 139 patients. The main components of fluid intake varied across different time intervals, with resuscitation and non-resuscitation fluids such as antimicrobials and maintenance fluids being significant contributors in T1 and nutritional therapy in T2/T3. A positive fluid balance both in T1 and T2 was associated with mortality (p = 0.049; p = 0.003), while nutritional support in T2 was associated with lower mortality (p = 0.040). The association with mortality was not explained by severity of illness scores. Conclusions: Non-resuscitation fluids are major contributors to a positive fluid balance within the first 48 hours of resuscitation. A positive fluid balance in the first 24 and 48 hours seems to independently increase the risk of death, while higher amount of nutrition seems protective. This data might inform fluid stewardship strategies aiming to improve outcomes and minimize complications in sepsis.

Obesity impacts pharmacokinetic and pharmacodynamic parameters, changing the drug-binding state via plasma proteins, which is critical for drug effectiveness and toxicity. Albumin and α1-acid glycoprotein (AAG) are the two main proteins accountable for drug binding in humans. Previous studies have shown higher values of AAG in individuals with obesity, but the interference of AAG in the pharmacokinetics of drugs remains unclear. We, therefore, aimed to analyze the pharmacotherapeutic profile and interfering factors in patients undergoing bariatric surgery in the pre-operative period and after 12 months. A retrospective cross-sectional study design was conducted and serum AAG was determined, and potential drug-drug interactions were monitored in patients with severe obesity who underwent bariatric surgery. The drug classes most used were antidepressants, cardiovascular agents, and lipid-modifying agents, with a decrease in use after 12 months of surgery. Before surgery, it was found that more than half of the patients had at least one drug interaction in their therapeutic regimen. Of these, most were classified as moderate. After surgery, a decrease in drug interaction was observed. Serum AAG showed a significant reduction after 12 months, which can influence the free fraction of drugs with a high-affinity rate and how they impact therapeutic efficacy.

The species Rosmarinus officinalis L. (rosemary) is an herb from the Lamiaceae family, widely used in cooking as a food preservative, seasoning or condiment. It also stands out for its therapeutic properties, mainly presenting antioxidant, antibacterial and antitumor activity. The aim of this study was to evaluate the cytotoxic and mutagenic activity of R. officinalis L. essential oil through the Allium cepa bioassay. This test constitutes an excellent plant model routinely used due to its sensitivity, low cost and good correlation with test systems in mammals. The defined concentrations for carrying out the test were 750, 243, 81 and 27 µg mL-1. Five bulbs were used, 4 roots of each, measuring approximately 2 cm, and they were analyzed on two slides. All assays were performed at least in triplicate and compared to the negative control. The statistical test of analysis of variance (ANOVA with a fixed factor) was used, followed by Tukey's multiple comparisons test, for p < 0.05. For this purpose, the GraphPad Prism program (version 6.0) was used. The results showed a cytotoxic and mutagenic effect for all concentrations used of the essential oil of R. officinalis L. However, it is important to conduct further research using other genotoxicological tests with different endpoints and at different concentrations, in order to clarify the interaction of the essential oil of the species R. officinalis L. with the genetic material of the cell and its possible mechanism of action.

Dermatofibrosarcoma protuberans (DFSP) is an extremely rare and potentially aggressive soft tissue tumor. Around 85 to 90% of DFSP cases are low-grade tumors, while the fibrosarcomatous variant (DFSP-FS) is associated with medium and high-grade neoplasms. DFSP affects more young adults, in their 30s; however, it can be present in all ages. It has a high potential for locoregional dissemination and recurrence, directly related to tumor size. In the present study, a case of dermatofibrosarcoma protuberans with local recurrence after surgical treatment will be reported, subsequently treated with imatinib and a new surgical approach, with no new recurrences so far. The effectiveness of imatinib is noted in a deep, infiltrative and relapsed DFSP, in which upfront surgery would cause significant functional and cosmetic damage. Imatinib allowed an important clinical improvement for the patient, with tumor reduction in the initial weeks of treatment.

Although it appears biologically plausible for iron to be associated with gastric carcinogenesis, the evidence is insufficient to lead to any conclusions. To further investigate the relationship between body iron status and gastric cancer risk, we conducted a nested case-control study in the multicentric European Prospective Investigation into Cancer and Nutrition (EPIC) study. The study included 456 primary incident gastric adenocarcinoma cases and 900 matched controls that occurred during an average of 11 years of follow-up. We measured prediagnostic serum iron, ferritin, transferrin and C-reactive protein, and further estimated total iron-binding capacity (TIBC) and transferrin saturation (TS). Odds ratios (ORs) and 95% confidence intervals (CIs) for the risk of gastric cancer by iron metrics were estimated from multivariable conditional logistic regression models. After adjusting for relevant confounders, we observed a statistically significant inverse association between gastric cancer and ferritin and TS indices (ORlog2  = 0.80, 95% CI = 0.72-0.88; OR10%increment  = 0.87, 95% CI = 0.78-0.97, respectively). These associations appear to be restricted to noncardia gastric cancer (ferritin showed a p for heterogeneity = 0.04 and TS had a p for heterogeneity = 0.02), and no differences were found by histological type. TIBC increased risk of overall gastric cancer (OR50 µg/dl  = 1.13, 95% CI = 1.02-1.2) and also with noncardia gastric cancer (p for heterogeneity = 0.04). Additional analysis suggests that time between blood draw and gastric cancer diagnosis could modify these findings. In conclusion, our results showed a decreased risk of gastric cancer related to higher body iron stores as measured by serum iron and ferritin. Further investigation is needed to clarify the role of iron in gastric carcinogenesis.

Objective: The aim of this study was to evaluate the impact of increased positive end-expiratory pressure on the sublingual microcirculation. Methods: Adult patients who were sedated, under mechanical ventilation, and had a diagnosis of circulatory shock and acute respiratory distress syndrome were included. The positive end-expiratory pressure level was settled to obtain a plateau pressure of 30 cm H2O and then maintained at this level for 20 minutes. Microcirculatory (obtained by videomicroscopy) and hemodynamic variables were collected at baseline and compared with those at the end of 20 min. Results: Twelve patients were enrolled. Overall, the microcirculation parameters did not significantly change after increasing the positive end-expiratory pressure. However, there was considerable interindividual variability. There was a negative, moderate correlation between the changes in the De Backer score (r = −0.58, p = 0.048), total vessel density (r = −0.60, p = 0.039) and baseline values. The changes in total vessel density (r = 0.54, p = 0.07) and perfused vessel density (r = 0.52, p = 0.08) trended toward correlating with the changes in the mean arterial pressure. Conclusion: Overall, the microcirculation parameters did not significantly change after increasing the positive end-expiratory pressure. However, at individual level, such response was heterogeneous. The changes in the microcirculation parameters could be correlated with the baseline values and changes in the mean arterial pressure. Resumo: Objetivo: O objetivo deste estudo foi avaliar o impacto do aumento de pressão positiva expiratória final (PEEP) sobre a microcirculação sublingual. Métodos: Os pacientes adultos que foram sedados, sob ventilação mecânica, com diagnóstico de choque circulatório e síndrome do desconforto respiratório agudo foram incluídos. O nível da PEEP estabelecido para obter uma pressão de platô de 30 cm H2O e depois mantida nesse nível por 20 minutos. As variáveis microcirculatória (obtida por microscopia de vídeo) e hemodinâmica foram registradas na fase basal e comparadas com aquelas ao final de 20min. Resultados: Doze pacientes foram incluídos. Em geral, os parâmetros da microcirculação não apresentaram alterações significativas após o aumento da PEEP. Porém, houve considerável variabilidade interindividual. Houve uma correlação negativa, moderada, entre as alterações no escore de De Backer (r = -0,58, p = 0,048), na densidade total do vaso (r = -0,60, p = 0,039) e nos valores basais. As alterações na densidade total do vaso (r = 0,54, p = 0,07) e na densidade do vaso perfundido (r = 0,52, p = 0,08) apresentaram tendência de correlação com as alterações na pressão arterial média. Conclusão: Em geral, os parâmetros da microcirculação não apresentaram alterações significativas após o aumento da PEEP. No entanto, individualmente, essa resposta foi heterogênea. As alterações nos parâmetros da microcirculação puderam ser correlacionadas com os valores basais e alterações na pressão arterial média. Keywords: Adult respiratory distress syndrome, Positive end-expiratory pressure, Microcirculation, Hemodynamics, Shock, Mechanical ventilators, Palavras-chave: Síndrome do desconforto respiratório do adulto, Pressão positiva expiratória final, Microcirculação, Hemodinâmica, Choque, Ventiladores mecânicos

Resumo Objetivos Avaliar o perfil dos trabalhadores rurais do município de Picos, no Estado do Piauí e suas práticas e atitudes quanto à utilização de agrotóxicos. Métodos A coleta dos dados (n=159) foi realizada em Picos com levantamento de dados socioeconômicos, utilização de equipamentos de proteção individual (EPIs), armazenamento e destino das embalagens de agrotóxicos, toxicidade e risco ambiental. Resultados A maioria dos agricultores era do sexo feminino (63%), não concluiu o ensino fundamental (55,6%), tinha entre 31 e 50 anos (55,3%), com renda de até um salário mínimo (66%) e possuía água encanada (84,3%). Quanto ao uso, 64,1% (102) utilizavam agrotóxicos, principalmente na agricultura (86,3%). Eles obtiveram informações sobre essas substâncias com vizinhos (44,2%), liam o rótulo para utilizar o produto (64,8%), usavam agroquímicos devido à ação rápida (81,4%), compravam em casas agropecuárias (87,4%), sem receituário agronômico (92%) e armazenavam embalagens dentro da própria casa (33,6%). Mais da metade não usava EPIs (56,8%), embora considerassem os agrotóxicos prejudiciais à saúde humana (94,1%) e ao meio ambiente (80,4%), além de 15% (24 pessoas) terem sentido algum sintoma de envenenamento. Conclusões Os entrevistados, em sua maioria, usavam agrotóxicos inadequadamente, tinham baixa escolaridade e conheciam sobre os riscos individuais e coletivos aos quais estavam expostos, mas não usavam EPIs.

Abstract Objective: To analyze the applicability of musical dynamics for nursing students in respect to palliative care in pediatric oncology. Methods: A qualitative research using the creative and sensitive method was developed in 2016 in the School of Nursing of a federal university in Rio de Janeiro. 'Musical Body' dynamics was used with ten students in the last year of the graduation course with data being submitted to thematic analysis. Results: The dynamics favored reflection on coping strategies and improving the care provided to children besides reinvigorating the healthcare team. It prompted reflection on empathy, unpreparedness and lack of opportunity to experience pediatric oncology and mourning and was thus an approximation to practical experience. Participants emphasized the possibility of using musical dynamics in the professional setting. Conclusion: Musical dynamics proved to be a useful strategy to sensitize nursing students about palliative care in pediatric oncology.

In termites, substrate-borne vibrations play an important role in communication among nestmates. The adaptive significance of such an ability has led to an ever-increasing number of studies aimed at improving knowledge on vibroacoustic communication in these insects. Such studies are commonly carried out in laboratory arenas consisting of Petri dishes made of plastic or glass. However, the rigidness of such materials may limit the transmission of vibrational waves impairing accurate records of the feeble vibrations produced by termites. This is one of the reasons why such experiments must be carried out under strictly controlled conditions, using extremely sensitive equipment, usually connected to amplifiers. If, instead, arenas bear a flexible floor (hence simulating a tympanum), vibrations might not be dampened or even easily amplified, thereby overcoming the need for such a specialized setup. Here we test such a hypothesis, using an accelerometer to measure and record vibrations whose intensity was tailored to mimic the feeble vibrations of a small termite species, Constrictotermes cyphergaster. Results support the notion that tympanic arenas portray such vibrations far more accurately than arenas made of plastic or glass. We hence recommend this type of arena as a cheap, albeit accurate, alternative in studies of vibroacoustic behaviors of termites and other insects of comparable size, especially in situations where noise is minimally controlled. These arenas, then, can be useful in conducting such studies just after termite collection in remote regions where well-equipped labs are not available. In doing so, we minimize the stress involved in transporting termites over long distances.

This study described the use of household insecticides in Picos (Piauí, Brazil), identify which are the most used types of insecticides and describes the incidence of poisoning and environmental awareness of the population. After home visits (n = 700), it was seen that the majority of respondents was represented by women (75%), with 31-55 years-old (49%), incomplete primary education (38.1%) and income between 1-2 earnings (64%). Most homes have between 1-3 residents (48%), 85% of the persons use insecticides mainly chosen in TV and radio and only 54% of them read the label before employing the product. The most used form of presentation is the aerosol (70.7%). Majority (79%) recognizes that insecticides are harmful to health, but 74% do not use any Personal Protective Equipment (PPE). Symptoms of toxicity were reported by 27% of people interviewed. Two women reported irritation, dizziness and respiratory problems and need for medical intervention and hospitalization. All interviewed discard the package as regular trash, since Picos does not has selective collection. In conclusion, most people use insecticides, know about the individual and collective risks to which they are exposed but do not use PPE, though they believe insecticides are toxic. It was noted that acquisition of knowledge does not necessarily result in behavioral changes, since learning does not translate into appropriate preventive attitudes and practices, emphasizing the requirement for awareness campaigns about toxicity and environmental risks, preparation of professionals and surveillance policy against indiscriminate sale.

BACKGROUND/OBJECTIVES: High intakes of unprocessed red or processed meat may increase the risk of stroke. We aimed to examine the association between unprocessed red meat, processed meat and total red meat consumption and risk of total stroke and ischaemic stroke. SUBJECTS/METHODS: Cox proportional hazards regression analyses were conducted based on the data for 41 020 men and women aged 29-69 years at baseline. RESULTS: During a mean follow-up of 13.8 years, 674 incident cases of stroke (531 ischaemic strokes, 79 haemorrhagic strokes, 42 subarachnoid haemorrhages and 22 mixed or unspecified events) were identified. After multiple adjustment, unprocessed red meat, processed meat and total red meat consumption were not correlated with incidence of total stroke or ischaemic stroke in either men or women. The hazard ratios (HRs) for unprocessed red meat and processed meat and risk of total stroke comparing the highest with the lowest quintiles were, respectively, 0.81 (95% confidence interval (CI) 0.54-1.21; P-trend =0.15) and 0.92 (95% CI 0.64-1.32; P-trend = 0.82) in men and 1.21 (95% CI 0.79-1.85; P-trend =0.10) and 0.81 (95% CI 0.51-1.27; P-trend =0.17) in women. The HRs for unprocessed red meat and processed meat and risk of ischaemic stroke were, respectively, 0.80 (95% CI 0.51-1.25; Ptrend = 0.51) and 0.86 (95% CI 0.57-1.29; P-trend =0.77) in men and 1.24 (95% CI 0.74-2.05; P-trend = 0.13) and 0.82 (95% CI 0.471.42; P-trend = 0.31) in women. CONCLUSIONS: In the Spanish European Prospective Investigation into Cancer and Nutrition (EPIC) cohort, unprocessed red meat and processed meat consumption were not associated with risk of stroke in men or women. European Journal of Clinical Nutrition (2016) 70, 313-319; doi: 10.1038/ejcn.2015.150; published online 30 September 2015, INTRODUCTION In recent years, there has been considerable interest in investigating the relationship between protein-rich foods and risk of coronary heart disease (CHD) and stroke. These studies have focused mainly [...]

The somatic cell count (SCC) of refrigerated raw milk reflects the occurrence of mastitis in the herd and the management of rural property. Therefore, this study aimed to evaluate the SCC of the refrigerated raw milk and its determinant factors in dairy properties of Viçosa, State of Minas Gerais. Monthly, milk samples were taken from 44 cooling tanks during 2012. A structured questionnaire was applied to evaluate the production and management characteristics of the herds. There was a significant variation (p < 0.05) in the mean SCC of the milk, which was lower from June to August. Higher mean SCC and percentages of samples above the limit set by the legislation were observed in months of higher rainfall and ambient temperature (p < 0.05). Mechanical milking, lower milk yield, productivity, inadequate milking procedures, equipment hygiene, and water quality were all factors that influenced (p < 0.05) the SCC of raw refrigerated milk. Milker training is required for production of low SCC milk.

Here we present data on distinct stimuli as elicitors of substrate-borne vibrations performed by groups of termites belonging to the species Constrictotermes cyphergaster (Blattodea: Isoptera: Termitidae: Nasutitermitinae). The study consisted of assays where termite workers and soldiers were exposed to different airborne stimuli and the vibrations thereby elicited were captured by an accelerometer attached under the floor of the arena in which the termites were confined. A video camera was also used as a visual complement. The data provided here contribute to fill a gap currently existing in published datasets on termite communication.

BACKGROUND/OBJECTIVES: Diets high in saturated and trans fat and low in unsaturated fat may increase type 2 diabetes (T2D) risk, but studies on foods high in fat per unit weight are sparse. We assessed whether the intake of vegetable oil, butter, margarine, nuts and seeds and cakes and cookies is related to incident T2D. SUBJECTS/METHODS: A case-cohort study was conducted, nested within eight countries of the European Prospective Investigation into Cancer (EPIC), with 12 403 incident T2D cases and a subcohort of 16 835 people, identified from a cohort of 340 234 people. Diet was assessed at baseline (1991-1999) by country-specific questionnaires. Country-specific hazard ratios (HRs) across four categories of fatty foods (nonconsumers and tertiles among consumers) were combined with random-effects meta-analysis. RESULTS: After adjustment not including body mass index (BMI), nonconsumers of butter, nuts and seeds and cakes and cookies were at higher T2D risk compared with the middle tertile of consumption. Among consumers, cakes and cookies were inversely related to T2D (HRs across increasing tertiles 1.14, 1.00 and 0.92, respectively; P-trend < 0.0001). All these associations attenuated upon adjustment for BMI, except the higher risk of nonconsumers of cakes and cookies (HR 1.57). Higher consumption of margarine became positively associated after BMI adjustment (HRs across increasing consumption tertiles: 0.93, 1.00 and 1.12; P-trend 0.03). Within consumers, vegetable oil, butter and nuts and seeds were unrelated to T2D. CONCLUSIONS: Fatty foods were generally not associated with T2D, apart from weak positive association for margarine. The higher risk among nonconsumers of cakes and cookies needs further explanation. European Journal of Clinical Nutrition (2015) 69, 455-461; doi: 10.1038/ejcn.2014.249; published online 26 November 2014, INTRODUCTION Diet is considered to be a crucial factor in the development of type 2 diabetes (T2D) and there has been a considerable interest in the role of the fat [...]

Social bees make use of natural or animal-built structures to protect their colonies from environmental stressors. Here, particularly attractive shelters are active termite nests because they provide a stable climatic environment for inquilines. Several social bee species form obligatory associations with termites, among these the stingless bee Partamona seridoensis (Apidae, Meliponini), whose distribution is limited to the Tropical Dry Forest in the Brazilian Northeast. So far, colonies of this meliponine species have been found mainly in arboreal nests of the termite Constrictotermes cyphergaster, which suggests a tight relationship between these two social insect species. The present study was conducted in an area of the Tropical Dry Forest in the Brazilian State of Rio Grande do Norte, where P. seridoensis naturally occurs albeit the absence of C. cyphergaster. We registered 14 colonies of P. seridoensis, all occupying active arboreal nests of termites of the genus Microcerotermes. The only other termites with arboreal nests present in the study area, Nasutitermes corniger, never housed P. seridoensis. This selective preference of the bees for Microcerotermes nests might be due to differences between termites concerning defense mechanisms or concerning thermal stability within the nests.

Nomuraea rileyi represents an important natural control agent of Anticarsia gemmatalis preventing populations from reaching economic threshold levels in soybean. During the processes of host infection, entomopathogenic fungi produce extracellular proteases, which degrade the host cuticle and are suggested to be virulence determinants. It was examined the production of subtilisin-like (Pr1) and trypsin-like (Pr2) proteases in two strains (NR458 and CG434) of N. rileyi and its possible role in the process of pathogenicity to this caterpillar. Fungal growth was performed in a mineral medium containing nitrate, and supplemented with the cuticle or exuviae from A. gemmatalis, or with the non-cuticular substrate casein. In medium containing nitrate as sole nitrogen source, no detectable Pr1-like activity occurred in the culture supernatants of the two fungal strains. However, both strains of N. rileyi produced Pr1-like protease in all medium amended with exogenous nitrogen source, and it was highly expressed in the presence of insect cuticle. Pr2-like activity was significantly inferior to Pr1-like activity and it was detected only in some of the media culture and incubation periods tested. In the NR458 culture supernatant the highest activity was observed in medium containing nitrate as nitrogen source. Correlation analysis between the percentage of A. gemmatalis mortality in bioassays and Pr1-like protease activity of strain NR458 suggests a positive correlation for these variables.O objetivo deste estudo foi avaliar a produção de proteases dos tipos subtilisina [Pr1] e tripsina [Pr2] por duas linhagens do fungo entomopatogênico Nomuraea rileyi e a correlação entre a atividade de Pr1 e a patogenicidade contra Anticarsia gemmatalis. O crescimento do fungo foi realizado em meio mínimo contendo nitrato e suplementado com a cutícula ou exúvia de A. gemmatalis, ou com substrato não cuticular caseína. Em meio contendo nitrato, nenhuma atividade de Pr1 foi detectada nos sobrenadantes das culturas. Entretanto, as duas linhagens de N. rileyi produziram Pr1 em meio suplementado com fonte exógena de nitrogênio, e alta atividade foi verificada na presença da cutícula do inseto. A atividade de Pr2 foi inferior à atividade de Pr1. A análise de correlação entre a atividade de Pr1 da linhagem NR458 e mortalidade de A. gemmatalis sugere uma correlação positiva para essas variáveis. A avaliação da atividade de enzimas em diferentes condições pode ajudar na compreensão do processo infeccioso de N. rileyi em A. gemmatalis.