RESUMO
Microbiologically contaminated water is a significant source of infections in humans and animals, with Pseudomonas aeruginosa (PSA) being particularly concerning due to its ability to thrive in water environments and its resistance to many disinfectants. Therefore, this study investigates the adhesion potential of PSA strains on various materials used in mineral water extraction wells, focusing on hydrophobic and hydrophilic properties. Mineral water samples were collected from three wells (P-01, P-07, and P-08) within the Guarani Aquifer System and Fractured Aquifer System (SAF) in Brazil. The physicochemical properties of the water, including concentrations of Sr (strontium), Fe (iron), Si (silicon), SO42- (sulfate ions), Cl- (chloride ions), and ORP (oxidation-reduction potential), were analyzed. Results indicated higher PSA adhesion on hydrophobic materials, particularly high-density polyethylene (HDPE) and geomechanically plasticized polyvinyl chloride (PVC). Multiple correlation analyses revealed positive correlations between PSA adhesion on hydrophilic materials and Sr, Fe, Si, SO42-, and Cl- concentrations. Conversely, ORP negatively correlated with bacterial adhesion on PVC surfaces, suggesting higher ORP values reduced PSA attachment. These findings highlight the importance of water composition and material properties in influencing bacterial adhesion and potential biofilm formation in mineral water extraction systems.
RESUMO
INTRODUCTION: Hemorrhagic cystitis (HC) is a common complication after allogeneic hematopoietic stem cell transplantation (HSCT), characterized by inflammation and bleeding of the bladder. Hyperbaric oxygen therapy (HBOT) has been shown to be effective in the treatment of radiation-induced HC. However, the optimal treatment for HC after allogeneic HSCT has not yet been established. Furthermore, limited research has been conducted on the use of HBOT in this setting. This study aimed to evaluate the effectiveness and safety of HBOT in patients with late-onset HC after allogeneic HSCT. METHODS: Twenty-five-year (1998-2022) retrospective analysis performed in all consecutive patients with confirmed late-onset HC after allogeneic HSCT treated with HBOT at two centers in Portugal. Medical records were reviewed for clinical and laboratory features, primary indications for allogeneic HSCT, conditioning regimen, and treatment strategies for HC. Patients received 100% oxygen at 2.1-2.5 atmosphere absolute pressure (ATA) for 70-90-minute periods, once daily, five times per week. Complete clinical response was defined as the absence of macroscopic hematuria sustained for at least 2 weeks, and partial response was described as a downgrading in the severity of HC. Statistical significance was considered for values of p < 0.05. RESULTS: The sample included 61 patients with a mean age of 28.0 (SD 14.2) years, 33 males. Complete response was achieved in 72.1% (n = 44) of patients and partial response in 14.8% (n = 9). Concerning patients with a complete response, the median number of HBOT sessions was 15.5 sessions (IQR 10.0-26.8). Patients treated with 10 or more sessions of HBOT had a higher rate of complete or partial response (OR 12.5, 95%CI 1.9-83.2, p-value < 0.05). There was no response in 8 (13.1%) patients, and 6 interrupted the treatments early. Only 2 patients suspended the HBOT due to a lack of clinical benefit. CONCLUSION: Our study supports using of HBOT as an adjunctive treatment for late-onset HC after allogeneic HSCT. Furthermore, 10 or more HBOT sessions delivered seem to impact the rate of HC resolution. Prospective, randomized, and well-controlled trials are needed to establish HBOT's definitive efficacy and safety.
Assuntos
Cistite , Transplante de Células-Tronco Hematopoéticas , Oxigenoterapia Hiperbárica , Transplante Homólogo , Humanos , Oxigenoterapia Hiperbárica/métodos , Transplante de Células-Tronco Hematopoéticas/efeitos adversos , Cistite/terapia , Cistite/etiologia , Masculino , Feminino , Adulto , Pessoa de Meia-Idade , Estudos Retrospectivos , Transplante Homólogo/efeitos adversos , Hemorragia/etiologia , Hemorragia/terapia , Adulto Jovem , Resultado do Tratamento , Adolescente , Idoso , Cistite HemorrágicaRESUMO
Despite the high global production of beetroot (Beta vulgaris L.), its peel is often discarded. Transforming beetroot into flour can reduce waste, improve food security, and decrease environmental pollution. However, large-scale feasibility depends on understanding drying kinetics and optimal storage conditions. This study aimed to investigate the effects of different temperatures in the convective drying of whole beetroot and evaluate the influence of laminated flexible and plastic packaging on flour stability over two months. Drying kinetics were analyzed using five models, with the Page and Logarithm models showing the best fit (R2 > 0.99). Def values (1.27 × 10-9 to 2.04 × 10-9 m2 s-1) increased with rising temperatures while drying time was reduced (from 820 to 400 min), indicating efficient diffusion. The activation energy was 29.34 KJ mol-1, comparable to other plant matrices. Drying reduced moisture and increased ash concentration in the flour. The flour showed a good water adsorption capacity and low cohesiveness, making it marketable. Laminated packaging was more effective in controlling physicochemical parameters, reducing hygroscopicity, and maintaining quality over 60 days. In summary, the Page model can predict beetroot drying kinetics effectively, and laminated packaging can control flour stability.
RESUMO
This study aims to investigate the essential oil from leaves of Eugenia pohliana (EOEP) in regard to its chemical composition, antimicrobial and drug-enhancing activity, as well as the reduction of fungal virulence capacity. Chemical characterization using GC-MS showed as major components the sesquiterpenes δ-cadinene, Epi-α-Muurolol, and bicyclogermacrene. The results of antibacterial tests indicated that Staphylococcus aureus was more sensitive to EOEP, that also enhanced the efficacy of gentamicin, erythromycin, and norfloxacin. EOEP exhibited antifungal properties against Candida albicans, in addition to potentiating the effectiveness of fluconazole against Candida tropicalis. It showed anti-virulence effects in all fungal strains. These findings underscore E. pohliana as a potential candidate for the prospection of novel therapeutic agents to treat infectious diseases caused by resistant microbes.
RESUMO
OBJECTIVE: to understand the bioethical perspectives on mobile tracking device use. METHODS: theoretical study based on action research, carried out with eight graduate students from a public university. A focus group was used, with a thematic content analysis methodology with a codebook structure, approved by the Research Ethics Committee. RESULTS: from the analysis, there was a concern about using devices after the pandemic ended. Using or not the device, rights inherent to humans, legislation and effectiveness of methods deepen interpretations, moving participants from a personalistic conception of the topic to a vision focused on professional implications about the methods. FINAL CONSIDERATIONS: the debate on the impact of using technological devices on health, especially those that imply restriction of rights that refer to individuals' private life, involves a discussion of a professional nature, in addition to requirement for clear rules on the topic.
Assuntos
Saúde Pública , Humanos , Saúde Pública/métodos , Saúde Pública/ética , Grupos Focais/métodos , Bioética/tendências , Brasil , Feminino , Masculino , COVID-19 , Temas Bioéticos , Adulto , Pandemias , Pesquisa QualitativaRESUMO
BACKGROUND: Leishmaniosis caused by Leishmania infantum, L. major and L. tropica is endemic in Morocco. Growing evidence of both human and canine Leishmania infections in urban centres has been reported. Since many forms of the disease are zoonotic, veterinarians play an important role in leishmaniosis control by intervening at the parasite host level. This study aimed to bring together One Health principles to connect canine and feline leishmaniosis epidemiology within urban centres of Morocco (Rabat and Fez) and assess the level of awareness of Moroccan veterinarians about facing this threat. METHODS: A molecular survey was conducted for Leishmania DNA detection in canine (n = 155) and feline (n = 32) whole-blood samples. Three conventional polymerase chain reaction (PCR) protocols were implemented. The first PCR aimed at identifying infected animals by targeting Leishmania spp. kinetoplast minicircle DNA (kDNA). The second and third PCR targeted the Leishmania internal transcribed spacer region (ITS-1) and the Leishmania small subunit ribosomal RNA (SSUrRNA) gene, respectively, aiming at identification of the infecting species after Sanger sequencing-positive amplicons. Total immunoglobulin G (IgG) against Leishmania spp. was evaluated in 125 dogs by enzyme-linked immunosorbent assays (ELISA) using an in-house protocol, including three Leishmania-specific antigens (SPLA, rKDDR and LicTXNPx). Sera from 25 cats were screened for total IgG to Leishmania spp. by an indirect immunofluorescence antibody test (IFAT). An online questionnaire was presented to Moroccan veterinarians addressing their knowledge and practices towards animal leishmaniosis. RESULTS: Overall, 19.4% of the dogs tested positive for Leishmania kDNA and ITS-1 and sequencing revealed infection with L. infantum among PCR-positive dogs. These animals presented a wide range of ELISA seropositivity results (16.7%, 34.9% and 51.6%) according to the tested antigens (rKDDR, SPLA and LicTXNPx, respectively). Use of kDNA-PCR revealed 12.5% cats positive to Leishmania spp. otherwise found to be seronegative by IFAT. CONCLUSIONS: A considerable prevalence of infection was identified in dogs from urban centres of Morocco. Additionally, this is the first report of feline infection with Leishmania spp. in this country and in urban settings. Moroccan veterinarians are aware that animal leishmaniosis is endemic in Morocco, representing a public health threat, and are knowledgeable about canine leishmaniosis diagnosis and treatment.
Assuntos
Doenças do Gato , Doenças do Cão , Leishmaniose , Animais , Marrocos/epidemiologia , Cães , Gatos , Doenças do Cão/epidemiologia , Doenças do Cão/parasitologia , Doenças do Gato/parasitologia , Doenças do Gato/epidemiologia , Leishmaniose/veterinária , Leishmaniose/epidemiologia , Leishmaniose/transmissão , Médicos Veterinários , Humanos , DNA de Protozoário/genética , DNA de Protozoário/sangue , Anticorpos Antiprotozoários/sangue , Leishmania/genética , Leishmania/imunologia , Leishmania/isolamento & purificação , Leishmania/classificação , Reação em Cadeia da Polimerase , Masculino , Imunoglobulina G/sangue , Feminino , Leishmania infantum/genética , Leishmania infantum/imunologia , Leishmania infantum/isolamento & purificação , Zoonoses/parasitologia , Zoonoses/epidemiologia , Zoonoses/transmissãoRESUMO
BACKGROUND: Cats are now recognized as competent hosts for Leishmania infantum and a blood source for sand fly vectors. Although canine leishmaniosis (CanL) is endemic in Mediterranean Basin countries, large-scale epidemiological studies are lacking for feline leishmaniosis (FeL). This study aimed to assess the prevalence of L. infantum infections, associated risk factors, clinical signs, and clinicopathological abnormalities in domestic cat populations from six Mediterranean Basin countries. METHODS: From 2019 to 2022, blood and serum samples of cats (n = 2067) living in Italy (n = 300), Greece (n = 297), Portugal (n = 295), France (n = 231), Israel (n = 313), and Spain (n = 631) were collected along with animal data (i.e., age, sex, breed, housing conditions, and geographical origin), clinical signs, and laboratory blood test parameters. Cats were grouped according to their age as kittens (up to 1 year), young (older than 1 and younger than 7 years), mature (between 7 and 10 years), and senior (older than 10 years). Serum samples were tested for L. infantum by immunofluorescence antibody test (IFAT) and enzyme-linked immunosorbent assay (ELISA), and blood samples of seropositive cats were tested for L. infantum kinetoplast deoxyribonucleic acid (kDNA). Viral infection by feline immunodeficiency virus (FIV) and feline leukemia virus (FeLV) was molecularly addressed in all cats enrolled. Statistical analysis was performed to evaluate the association between the risk of L. infantum infection and independent variables, and among co-infection of L. infantum with FIV and/or FeLV, clinical signs, and clinicopathological abnormalities. RESULTS: Overall, 17.3% (358/2067) of cats scored positive for L. infantum by serological tests. Specifically, 24.7% were from Portugal, 23.2% from Greece, 16.6% from Israel, 15% from Spain, 13.3% from France, and 12.6% from Italy. Leishmania infantum DNA was detected in 15 seropositive animals. Housing condition and FIV infection proved to be risk factors for FeL. Leishmania seropositivity was significantly associated with weight loss, lymphadenomegaly, gingivostomatitis, and oral ulcers, as well as with reduced albumin and albumin/globulin ratio, increased total globulins and total proteins, leukocytosis, and thrombocytosis. CONCLUSIONS: This study provides, for the first time, a large-scale epidemiological survey on FeL and its clinical presentation, revealing that L. infantum circulates among domestic cats, especially shelter/free-roaming and FIV-infected animals, living in CanL endemic countries of the Mediterranean Basin.
Assuntos
Doenças do Gato , Leishmania infantum , Leishmaniose Visceral , Animais , Gatos , Doenças do Gato/epidemiologia , Doenças do Gato/parasitologia , Doenças do Gato/virologia , Leishmania infantum/isolamento & purificação , Leishmania infantum/genética , Masculino , Feminino , Leishmaniose Visceral/epidemiologia , Leishmaniose Visceral/veterinária , Leishmaniose Visceral/parasitologia , Região do Mediterrâneo/epidemiologia , Fatores de Risco , Prevalência , Espanha/epidemiologia , Grécia/epidemiologia , Portugal/epidemiologia , Anticorpos Antiprotozoários/sangue , Vírus da Leucemia Felina/isolamento & purificação , Vírus da Leucemia Felina/genética , França/epidemiologia , Itália/epidemiologia , Leishmaniose/epidemiologia , Leishmaniose/veterinária , Vírus da Imunodeficiência Felina/isolamento & purificação , Israel/epidemiologiaRESUMO
Staphylococcus aureus is a bacterium responsible for resistance to multiple drugs and the efflux system is widely studied among the resistance mechanisms developed by this species. The present study evaluates the inhibition of the MepA efflux pump by thiadiazine-derived compounds. For this purpose, thiadiazine-derived compounds (IJ-14 to IJ-20) were tested against S. aureus K2068 strains. Microdilution tests were initially conducted to assess the Minimum Inhibitory Concentration (MIC) of the compounds and their efflux pump inhibition activity. In addition, fluorimetry tests were performed using BrEt emission and tests were conducted to inhibit the expression of the mepA gene. This involved comparing the bacterial gene expression with the antibiotic alone to the gene expression after combining compounds (IJ-17 and IJ-20) with the antibiotic. Furthermore, membrane permeability assessment tests and in silico molecular docking tests were performed. It was observed that the IJ17 and IJ20 compounds exhibited direct activity against the tested strain. The IJ17 compound produced significant results in the gene inhibition tests, which was also evidenced through the membrane permeability alteration test. These findings suggest that thiadiazine-derived compounds have promising effects against one of the main resistance mechanisms, with the IJ17 compound presenting observable mechanisms of action.
Assuntos
Antibacterianos , Proteínas de Bactérias , Permeabilidade da Membrana Celular , Testes de Sensibilidade Microbiana , Simulação de Acoplamento Molecular , Staphylococcus aureus , Staphylococcus aureus/efeitos dos fármacos , Staphylococcus aureus/genética , Antibacterianos/farmacologia , Proteínas de Bactérias/genética , Proteínas de Bactérias/metabolismo , Permeabilidade da Membrana Celular/efeitos dos fármacos , Regulação Bacteriana da Expressão Gênica/efeitos dos fármacos , Tiazinas/farmacologia , Proteínas de Membrana Transportadoras/metabolismo , Proteínas de Membrana Transportadoras/genéticaRESUMO
Background Central retinal artery occlusion (CRAO) results in sudden, painless vision loss. As an analogous condition to acute ischemic stroke, CRAO is an ophthalmological emergency, but a standardized treatment is lacking. Hyperbaric oxygen therapy (HBOT) has been widely used in spite of the inconsistent results reported. Purpose To report the visual acuity (VA) outcomes in all patients submitted to HBOT with non-arteritic CRAO in a tertiary center. Methods This retrospective study included all adult patients with CRAO and symptoms lasting for less than 24 hours who were prescribed HBOT in the Hyperbaric Medicine Unit of a Portuguese hospital from March 2009 to February 2023. Patient demographic information, medical history, ophthalmologic evaluation, hospital of referral, time until HBOT, supplementary treatments, number of HBOT sessions, adverse effects, and patient subjective VA gain were collected. All patients were subjected to 90-minute HBOT sessions with 100% oxygen at 2.4 ATA. The primary outcome was VA change (dif-logMAR) before and after treatment. A clinically significant visual improvement was defined as a dif-logMAR≥0.3. Data were analyzed using IBM SPSS Statistics for Windows, Version 29 (Released 2021; IBM Corp., Armonk, New York, United States) (p<0.05 is considered significant). Results A total of 114 patients were included in this study; 68% (n=77) were male, with a mean age of 69 years, and were subjected to a median number of seven HBOT sessions. No serious adverse effects from HBOT were reported. The mean time delay from symptoms to treatment was 12 hours, and best-corrected visual acuity (BCVA) at baseline was counting fingers or worse in 84% (n=96) of the patients. A dif-logMAR≥0.3 occurred in 46% (n=52) of the patients, and 58% (n=66) reported subjective VA improvement after the treatment. A significant improvement between BCVA before HBOT (2.12±0.74) and after HBOT (1.67±0.74) was observed. The VA outcome was found to be related to the total number of sessions, age, obesity, supplementary treatments, and cherry-red spot (CRS) at presentation. There were no significant effects of the time delay from symptoms to treatment in the explanation of the VA outcome. Conclusions HBOT appears to be safe and has a beneficial effect on VA outcomes in patients with non-arteritic CRAO, particularly depending on the number of sessions. Patient factors such as age, obesity, and the presence of CRSs also appear to influence the VA outcome.
RESUMO
Neurogenesis is a high energy-demanding process, which is why blood vessels are an active part of the neurogenic niche since they allow the much-needed oxygenation of progenitor cells. In this regard, although neglected for a long time, the "oxygen niche" should be considered an important intervenient in adult neurogenesis. One possible hypothesis for the failure of numerous neuroprotective trials is that they relied on compounds that target a highly specific neuroprotective pathway. This approach may be too limited, given the complexity of the processes that lead to cell death. Therefore, research should adopt a more multifactorial approach. Among the limited range of agents with multimodal neuromodulatory capabilities, hyperbaric oxygen therapy has demonstrated effectiveness in reducing secondary brain damage in various brain injury models. This therapy functions not only as a neuroprotective mechanism but also as a powerful neuroregenerative mechanism.
RESUMO
BACKGROUND: Bleeding in the upper airways is an important cause of airway-related death. A higher incidence of airway management failure and complications after intubation attempts in the emergency department (ED) had been suggested. Airway management of patients with active oropharyngeal hemorrhage may be challenging, leading the clinician to modify the approach. CASE REPORT: A 57-year-old woman presented to the ED with oropharyngeal hemorrhage after an extensive invasive dental procedure. She was on long-term warfarin therapy due to aortic and mitral valve replacement, which she suspended 5 days prior and restarted the day after the procedure. Besides the active bleeding, swelling, and hematoma of the face, the patient had other signs of "difficult airway," so there were serious questions on when and how to manage the airway. Several strategies to address the airway were considered, the main point being an early versus later intubation. As the patient remained clinically stable, she was conservatively managed with local hemostasis and coagulopathy reversal. The patient was transferred to the intensive care unit, where she remained stable and was successfully discharged after restart on warfarin. WHY SHOULD AN EMERGENCY PHYSICIAN BE AWARE OF THIS?: When faced with an oropharyngeal hemorrhage, emergency physicians may be compelled to secure and protect the airway. This could be achieved by planning several strategies. Nevertheless, in selected patients, and considering the circumstances, not addressing the airway is a reasonable and justifiable alternative.
Assuntos
Hemorragia , Varfarina , Feminino , Humanos , Pessoa de Meia-Idade , Varfarina/uso terapêutico , Hemorragia/etiologia , Hemorragia/terapia , Manuseio das Vias Aéreas/métodos , Hematoma , Intubação , Intubação Intratraqueal/métodosRESUMO
ABSTRACT Objective: to understand the bioethical perspectives on mobile tracking device use. Methods: theoretical study based on action research, carried out with eight graduate students from a public university. A focus group was used, with a thematic content analysis methodology with a codebook structure, approved by the Research Ethics Committee. Results: from the analysis, there was a concern about using devices after the pandemic ended. Using or not the device, rights inherent to humans, legislation and effectiveness of methods deepen interpretations, moving participants from a personalistic conception of the topic to a vision focused on professional implications about the methods. Final considerations: the debate on the impact of using technological devices on health, especially those that imply restriction of rights that refer to individuals' private life, involves a discussion of a professional nature, in addition to requirement for clear rules on the topic.
RESUMEN Objetivo: comprender las perspectivas bioéticas sobre el uso de dispositivos móviles de seguimiento. Métodos: estudio teórico basado en la investigación acción, realizado con ocho estudiantes de posgrado de una universidad pública. Se utilizó un grupo focal, con metodología de análisis de contenido temático con estructura de libro de códigos, aprobada por el Comité de Ética en Investigación. Resultados: del análisis surgió la preocupación por el uso de dispositivos una vez terminada la pandemia. El uso o no del dispositivo, los derechos inherentes a la persona humana, la legislación y la eficacia de los métodos profundizan las interpretaciones, trasladando a los participantes de una concepción personalista del tema a una visión centrada en las implicaciones profesionales de los métodos. Consideraciones finales: el debate sobre el impacto del uso de dispositivos tecnológicos en la salud, especialmente aquellos que implican restricción de derechos que se refieren a la vida privada de las personas, implica una discusión profesional, además de la exigencia de reglas claras sobre el tema.
RESUMO Objetivo: compreender as perspectivas bioéticas no uso de dispositivos móveis de rastreamento. Métodos: estudo teórico fundamentado através de pesquisa-ação, realizado com oito pós-graduandos de uma universidade pública. Utilizou-se grupo focal, com metodologia de análise de conteúdo temática com estrutura de codebook, aprovado pelo Comitê de Ética em Pesquisa. Resultados: a partir da análise, constatou-se uma preocupação sobre o uso dos dispositivos findada a pandemia. O uso ou não do dispositivo, direitos inerentes à pessoa humana, legislação e efetividade dos métodos aprofundam interpretações, passando os participantes de uma concepção personalista do tema a uma visão voltada a implicações profissionais sobre os métodos. Considerações finais: o debate sobre o impacto do uso de dispositivos tecnológicos na saúde, em especial os que impliquem restrição de direitos que se referem à vida privada do indivíduo, passa por uma discussão de caráter profissional, além da exigência de claro regramento sobre o tema.
RESUMO
Coumarins are compounds with scientifically proven antibacterial properties, and modifications to the chemical structure are known to improve their effects. This information is even more relevant with the unbridled advances of antibiotic resistance, where Staphylococcus aureus and its efflux pumps play a prominent role. The study's objective was to evaluate the potential of synthetic coumarins with different substitutions in the C-3 position as possible inhibitors of the NorA and MepA efflux pumps of S. aureus. For this evaluation, the following steps took place: (i) the determination of the minimum inhibitory concentration (MIC); (ii) the association of coumarins with fluoroquinolones and ethidium bromide (EtBr); (iii) the assessment of the effect on EtBr fluorescence emission; (iv) molecular docking; and (v) an analysis of the effect on membrane permeability. Coumarins reduced the MICs of fluoroquinolones and EtBr between 50% and 87.5%. Coumarin C1 increased EtBr fluorescence emission between 20 and 40% by reinforcing the evidence of efflux inhibition. The molecular docking results demonstrated that coumarins have an affinity with efflux pumps and establish mainly hydrogen bonds and hydrophobic interactions. Furthermore, C1 did not change the permeability of the membrane. Therefore, we conclude that these 3-substituted coumarins act as inhibitors of the NorA and MepA efflux pumps of S. aureus.
RESUMO
The efflux systems are considered important mechanisms of bacterial resistance due to their ability to extrude various antibiotics. Several naturally occurring compounds, such as sesquiterpenes, have demonstrated antibacterial activity and the ability to inhibit efflux pumps in resistant strains. Therefore, the objective of this research was to analyze the antibacterial and inhibitory activity of the efflux systems NorA, Tet(K), MsrA, and MepA by sesquiterpenes nerolidol, farnesol, and α-bisabolol, used either individually or in liposomal nanoformulation, against multi-resistant Staphylococcus aureus strains. The methodology consisted of in vitro testing of the ability of sesquiterpenes to reduce the Minimum Inhibitory Concentration (MIC) and enhance the action of antibiotics and ethidium bromide (EtBr) in broth microdilution assays. The following strains were used: S. aureus 1199B carrying the NorA efflux pump, resistant to norfloxacin; IS-58 strain carrying Tet(K), resistant to tetracyclines; RN4220 carrying MsrA, conferring resistance to erythromycin. For the EtBr fluorescence measurement test, K2068 carrying MepA was used. It was observed the individual sesquiterpenes exhibited better antibacterial activity as well as efflux pump inhibition. Farnesol showed the lowest MIC of 16.5 µg/mL against the S. aureus RN4220 strain. Isolated nerolidol stood out for reducing the MIC of EtBr to 5 µg/mL in the 1199B strain, yielding better results than the positive control CCCP, indicating strong evidence of NorA inhibition. The liposome formulations did not show promising results, except for liposome/farnesol, which reduced the MIC of EtBr against 1199B and RN4220. Further research is needed to evaluate the mechanisms of action involved in the inhibition of resistance mechanisms by the tested compounds.
Assuntos
Staphylococcus aureus Resistente à Meticilina , Sesquiterpenos , Farneseno Álcool/farmacologia , Staphylococcus aureus/metabolismo , Staphylococcus aureus Resistente à Meticilina/metabolismo , Lipossomos , Proteínas Associadas à Resistência a Múltiplos Medicamentos , Antibacterianos/farmacologia , Sesquiterpenos/farmacologia , Etídio/farmacologia , Testes de Sensibilidade Microbiana , Proteínas de Bactérias/metabolismoRESUMO
This study examined the prevalence of anxiety and depression associated with Community Health Workers' (CHWs') working conditions in the context of the COVID-19 pandemic. This cross-sectional study was carried out in the north of Minas Gerais, Brazil by applying a questionnaire addressing sociodemographic conditions, command of technologies and working conditions during the pandemic, as well as the State-Trait Anxiety Inventory and the Patient Health Questionnare-9 (PHQ-9). Descriptive and multiple Poisson regression analyses were performed with robust variance, to a 5% level of significance (p < 0.05) for the final model. A total of 1,220 CHWs from 36 municipalities participated in the study. Prevalences were 41.8% and 31.6% for anxiety and depression, respectively, while 22.5% of the group displayed symptoms of both conditions. Being female, up to 40 years old, having more than 500 users registered for monitoring, and inadequate supply of personal protective equipment were associated with anxiety and depression among the CHWs. Prevalence of anxiety and depression was high among CHWs during the pandemic and working conditions figured prominently among the associated factors.
O objetivo deste estudo foi analisar a prevalência de ansiedade e depressão associada às condições de trabalho dos agentes comunitários de saúde (ACS) no contexto da pandemia de COVID-19. Estudo transversal, realizado no norte de Minas Gerais. Foi aplicado um questionário que abordava condições sociodemográficas, domínio de tecnologias e condições de trabalho durante a pandemia, além do Inventário de Ansiedade Traço-Estado e do Patient Health Questionnare-9 (PHQ-9). Foram realizadas análises descritivas e de regressão múltipla de Poisson com variância robusta, considerando um nível de significância de 5% (p < 0,05) para o modelo final. Participaram do estudo 1.220 ACS de 36 municípios. A prevalência foi de 41,8% e 31,6% para ansiedade e depressão, respectivamente, e 22,5% para ambas as condições. O sexo feminino, idade até 40 anos, ter mais de 500 usuários cadastrados para acompanhamento e oferta inadequada de equipamentos de proteção individual estiveram associados à ansiedade e à depressão. Registrouse uma elevada prevalência de ansiedade e depressão entre ACS no período da pandemia, com destaque para as condições de trabalho entre os fatores associados.
Assuntos
COVID-19 , Humanos , Feminino , Masculino , COVID-19/epidemiologia , Pandemias , Saúde Mental , Agentes Comunitários de Saúde , Estudos Transversais , Condições de Trabalho , Depressão/epidemiologia , Depressão/psicologia , Ansiedade/epidemiologia , Ansiedade/psicologia , Pessoal de Saúde/psicologiaRESUMO
Resumo O objetivo deste estudo foi analisar a prevalência de ansiedade e depressão associada às condições de trabalho dos agentes comunitários de saúde (ACS) no contexto da pandemia de COVID-19. Estudo transversal, realizado no norte de Minas Gerais. Foi aplicado um questionário que abordava condições sociodemográficas, domínio de tecnologias e condições de trabalho durante a pandemia, além do Inventário de Ansiedade Traço-Estado e do Patient Health Questionnare-9 (PHQ-9). Foram realizadas análises descritivas e de regressão múltipla de Poisson com variância robusta, considerando um nível de significância de 5% (p < 0,05) para o modelo final. Participaram do estudo 1.220 ACS de 36 municípios. A prevalência foi de 41,8% e 31,6% para ansiedade e depressão, respectivamente, e 22,5% para ambas as condições. O sexo feminino, idade até 40 anos, ter mais de 500 usuários cadastrados para acompanhamento e oferta inadequada de equipamentos de proteção individual estiveram associados à ansiedade e à depressão. Registrouse uma elevada prevalência de ansiedade e depressão entre ACS no período da pandemia, com destaque para as condições de trabalho entre os fatores associados.
Abstract This study examined the prevalence of anxiety and depression associated with Community Health Workers' (CHWs') working conditions in the context of the COVID-19 pandemic. This cross-sectional study was carried out in the north of Minas Gerais, Brazil by applying a questionnaire addressing sociodemographic conditions, command of technologies and working conditions during the pandemic, as well as the State-Trait Anxiety Inventory and the Patient Health Questionnare-9 (PHQ-9). Descriptive and multiple Poisson regression analyses were performed with robust variance, to a 5% level of significance (p < 0.05) for the final model. A total of 1,220 CHWs from 36 municipalities participated in the study. Prevalences were 41.8% and 31.6% for anxiety and depression, respectively, while 22.5% of the group displayed symptoms of both conditions. Being female, up to 40 years old, having more than 500 users registered for monitoring, and inadequate supply of personal protective equipment were associated with anxiety and depression among the CHWs. Prevalence of anxiety and depression was high among CHWs during the pandemic and working conditions figured prominently among the associated factors.
RESUMO
The natural Fisetin and its derivatives have been shown to have effective bioactivity and strong pharmacological profile, which is continuously drawing the interest of therapeutic applications to the development of new biomolecules against Breast cancer and Monkeypox, and Marburg viral infection, while computational approaches and the study of their structure-activity relationship (SAR) are the most eloquent and reliable platform for performing their hypothetical profile renovation. So, the main perspective of this investigation is to evaluate dual function of Fisetin and its derivatives against both virus and cancerous target. First and foremost, the prediction of activity spectra for materials (PASS) valuation has provided preliminary data on the antiviral, antibacterial, antiparasitic, and anti-cancer possibilities of the mentioned compounds. According to the evidence, PASS predicted scores were shown to perform better in antineoplastic and antiviral than antibacterial, and antiparasitic efficiency; as evidenced by their higher PASS scores in antineoplastic and antiviral drug tests. Breast cancer, Monkeypox, and Marburg virus have been selected as targeted pathogens, and different in silico studies were conducted to determine the dual function of mention derivatives. The "Lipinski five rules," on the other hand, has been subjected to extensive testing for drug-like characteristics. Molecular docking against Breast cancer, Monkeypox, and Marburg virus have been accomplished after confirmation of their bioactivity. The molecular docking evaluation against targeted disease displayed re-markable binding affinity and non-bonding engagement, with most of the results indicating that derivatives are more effective than the FDA approved standard antiviral, and antineoplastic drugs. Finally, the ADMET characteristics have been computed, and they indicate that the substance is suitable to use and did not have any chance to produce adverse effects on aquatic or non-aquatic environment, as well as having a highly soluble capacity in water medium, high G.I absorption rate, with outstanding bioavailability index. Therefore, these mentioned Fisetin derivatives could be suggested as potential medication against Breast cancer and newly reported Monkeypox, and Marburg virus, and may further proceed for laboratory experiment, synthesis, and clinical trials to evaluate their practical value.
Assuntos
Marburgvirus , Mpox , Neoplasias , Humanos , Simulação de Acoplamento Molecular , Relação Estrutura-Atividade , Antivirais/farmacologia , Antibacterianos , AntiparasitáriosRESUMO
Coffee, one of the most produced and consumed beverage in the world, has a range of variability in its quality. The aim of this work was to evaluate the consumer capacity to perceive the coffee quality through their fragrance and to verify the influence of previous information about quality on this perception using hedonic scale and Check All That Apply (CATA) sensory tests. The sensory tests were performed in two stages, one without and the other with quality related information of Mogiana coffee samples (Rio, Hard and Soft), and a traditional coffee sample. CATA attributes frequency of occurrence shows that samples discrimination could be done with specific attributes. For Soft coffee the attributes with more occurrence were sweet, caramel, brown sugar, and smooth. The Hard coffee sample was described by the attributes peanut, buttery, and chocolate. While for Rio coffee, the descriptive attributes most often mentioned were strong and burnt. The traditional sample stood out among consumers for its characteristics of old, medicine, sour, burnt, unpleasant and spicy. Therefore, the use of coffee powder fragrance can be alternative to differentiate the quality of the product and its function can be enhanced by passing on information on quality attributes to consumers.
Assuntos
Café , Odorantes , Bebidas , Alimentos , ArachisRESUMO
RESUMO Objetivo Analisar os indicadores de prazer e sofrimento no trabalho associados a depressão e ansiedade entre agentes comunitários de saúde (ACSs). Métodos Estudo transversal, no qual variáveis dependentes foram a presença de sintomas de ansiedade e depressão, avaliadas com o Patient Health Questionnaire (PHQ-9) e com o Inventário de Ansiedade de Traço-Estado (IDATE). As variáveis independentes foram avaliadas com um questionário sociodemográfico e a Escala de Indicadores de Prazer e Sofrimento no Trabalho (EIPST) do Inventário do Trabalho e Riscos de Adoecimento (ITRA). As associações entre as variáveis foram testadas com o uso de regressão logística multinominal. Resultados Participaram do estudo 675 ACSs, sendo a maioria mulheres (83,7%), com até 40 anos (51,3%). As chances de apresentar sintomas de ansiedade foram maiores entre ACSs efetivos (1,61 [1,10-2,36]), e avaliações críticas ou graves nos fatores realização (Crítica 1,87 [1,30-2,68]; Grave 4,16 [2,06-8,40]) e esgotamento profissional (Crítica 2,60 [1,78-3,80]; Grave 3,97 [2,53-6,21]). Sexo feminino (2,12 [1,03-4,40]), idade de até 40 anos (1,741 [1,05-2,89]), tempo de serviço superior a cinco anos (1,88 [1,18-2,99]), avaliações crítica ou grave nos fatores realização (Crítica 2,53 [1,55-4,10]; Grave 6,07 [2,76-13,38]), esgotamento profissional (Crítica 5,21 [2,30-11,80]; Grave 15,64 [6,53-37,44]) e falta de reconhecimento (Crítica 1,93 [1,13-3,28]) estiveram associados a maiores chances de sintomas depressivos. Conclusões Apesar de se tratar de estudo transversal, que não permite inferir causalidade, os achados sugerem importante associação entre aspectos laborais dos ACS e os sintomas de ansiedade e depressão. Sexo feminino e possuir 40 anos ou menos também mostraram relação com o aumento dos sintomas de depressão.
ABSTRACT Objective To analyze indicators of pleasure and suffering at work associated with depression and anxiety among community health workers (CHW). Methods Crosssectional study in which the dependent variables were the presence of anxiety and depression symptoms, assessed using the Patient Health Questionnaire (PHQ-9) and State-Trait Anxiety Inventory (STAI). The independent variables were evaluated using the Scale of Indicators of Pleasure and Suffering at Work (EIPST) of the Inventory of Work and Risks of Illness (ITRA). Associations between dependent and independent variables were tested using multinomial logistic regression. Results 675 CHW participated in the study, the majority being women (83.7%), aged up to 40 years (51.3%). The chances of presenting anxiety symptoms were higher among effective CHW (OR=1.61; 95%CI: 1.10-2.36), and critical or severe assessments in the achievement factors (Critical OR=1.87; 95%CI: 1.30-2.68; Severe OR=4.16; 95%CI: 2.06-8.40) and professional exhaustion (Critical OR=2.60; 95%CI: 1.78-3.80; Severe OR=3.97; 95% CI: 2.53-6.21). Female gender (OR=2.12; 95%CI: 1.03-4.40), age up to 40 years (OR=1.74; 95%CI: 1.05-2.89), length of service greater than five years (OR=1.88; 95%CI: 1.18-2.99), critical or severe ratings on achievement factors (Critical OR=2.53; 95%CI: 1.55-4.10; Severe OR= 6.07; 95%CI: 2.76-13.38), professional exhaustion (Critical OR=5.21; 95%CI: 2.30-11.80; Severe OR=15.64; 95%CI: 6.53 -37.44) and lack of recognition (Critical OR=1.93; 95%CI: 1.13-3.28) were associated with greater chances of depressive symptoms. Conclusions Despite being a cross-sectional study, which does not allow inferring causality, the findings suggest an important association between the work aspects of the CHW and the symptoms of anxiety and depression. Female gender and being 40 years old or younger also showed a relationship with increased symptoms of depression.
RESUMO
Tick-borne diseases (TBDs) are caused by pathogens of human and veterinary concern representing a major public health issue worldwide. Although feline medicine has progressed much in the recent decades, data on feline TBDs (FeTBDs) remain scant. Therefore, this study aimed to assess the prevalence of apicomplexan parasite infections, associated risk factors and clinical-hematological abnormalities in domestic feline populations from countries of the Mediterranean basin. Blood and serum samples from cats (n = 600) living in France, Greece, Israel, Italy, Portugal and Spain were collected along with animal data (i.e., age, sex, breed, housing conditions and geographical origin), clinical signs and laboratory blood test parameters. Cats were grouped according to their age as kitten (up to one year), young (between one and six years), mature (between seven and ten years) and senior (older than ten years). Blood samples were tested for Hepatozoon spp. and piroplasmids by conventional PCR targeting 18S rRNA gene. The overall prevalence of Hepatozoon spp. infection was 14.5%, being significantly higher in cats from Greece (30%) and Portugal (23%), followed by Spain (15%), Israel (15%) and France (4%). Cats from Italy scored negative. Hepatozoon felis was identified in 86 animals, with three different sequence types and H. silvestris was detected in one shelter cat from Portugal. No piroplasmid DNA was amplified. The risk of Hepatozoon spp. infection was related to feline geographical provenience, housing condition and age. No statistical correlation was reported with any clinical signs, while increased alanine aminotransferase (ALT) activity was the only laboratory abnormality significantly associated (p = 0.03) with the infection. Data suggest a high circulation of H. felis, and only occasionally of H. silvestris, within domestic feline populations in the Mediterranean basin, mainly in shelter or free roaming and young cats with asymptomatic or subclinical infection.