Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 94
Filtrar
1.
J Hazard Mater ; 476: 135000, 2024 Jun 21.
Artigo em Inglês | MEDLINE | ID: mdl-38909471

RESUMO

Increased cardiometabolic risk is associated with abnormalities in blood biomarkers profile and adiposity measurements. Some substances found in the food matrix and the environment, called endocrine-disrupting chemicals, may impair cardiometabolic health in the early and later stages of life. Bisphenol A (BPA) is a food contaminant that migrates from food contact materials and may act as an endocrine disruptor, negatively affecting human health. The present work aims to longitudinally assess the association between BPA exposure and cardiometabolic outcomes, considering data from Portuguese population-based birth cohort Generation XXI. Blood insulin (0.06stdß; 95 %CI:0.03,0.09) and insulin resistance (0.05stdß; 95 %CI:0.02,0.08) presented a significant longitudinal association with BPA daily exposure after adjustment for important variables and energy. The same findings were observed for fat mass (0.03stdß; 95 %CI 0.01,0.06) and waist circumference (0.06stdß; 95 %CI:0.04,0.08). For z-BMI, a significant cross-sectional (0.03stdß; 95 %CI:0.01,0.04) and longitudinal (0.02stdß; 95 %CI:0.00,0.04) association was found. This was the first study assessing the association between BPA exposure and health outcomes from childhood to adolescence. We found an association between BPA exposure and increased blood insulin level, insulin resistance, fat mass percentage, waist circumference and z-BMI. Our results point to the need to reduce exposure to BPA in the early stages of life.

2.
Nutr Rev ; 2024 Jun 28.
Artigo em Inglês | MEDLINE | ID: mdl-38942740

RESUMO

CONTEXT: Assessing the overall sustainability of a diet is a challenging undertaking requiring a holistic approach capable of addressing the multicriteria nature of this concept. OBJECTIVE: The aim was to identify and summarize the multicriteria measures used to assess the sustainability characteristics of diets reported at the individual level by healthy adults. DATA SOURCES: Articles were identified via PubMed, Scopus, and Web of Science. The search strategy consisted of key words and MeSH terms, and was concluded in September 2022, covering references in English, Spanish, and Portuguese. DATA EXTRACTION: This systematic review followed the PRISMA guidelines. The search identified 5663 references, from which 1794 were duplicates. Two reviewers independently screened the titles and abstracts of each of the 3869 records and the full-text of the 144 references selected. Of these, 7 studies met the inclusion criteria. DATA ANALYSIS: A total of 6 multicriteria measures were identified: 3 different Sustainable Diet Indices, the Quality Environmental Costs of Diet, the Quality Financial Costs of Diet, and the Environmental Impact of Diet. All of these incorporated a health/nutrition dimension, while the environmental and economic dimensions were the second and the third most integrated, respectively. A sociocultural sustainability dimension was included in only 1 of the measures. CONCLUSION: Despite some methodological concerns in the development and validation process of the identified measures, their inclusion is considered indispensable in assessing the transition towards sustainable diets in future studies. SYSTEMATIC REVIEW REGISTRATION: PROSPERO registration no. CRD42022358824.

3.
Sci Rep ; 14(1): 10758, 2024 05 10.
Artigo em Inglês | MEDLINE | ID: mdl-38730020

RESUMO

Staphylococcus aureus is a frequent agent of bacteraemia. This bacterium has a variety of virulence traits that allow the establishment and maintenance of infection. This study explored the virulence profile of S. aureus strains causing paediatric bacteraemia (SAB) in Manhiça district, Mozambique. We analysed 336 S. aureus strains isolated from blood cultures of children younger than 5 years admitted to the Manhiça District Hospital between 2001 and 2019, previously characterized for antibiotic susceptibility and clonality. The strains virulence potential was evaluated by PCR detection of the Panton-Valentine leucocidin (PVL) encoding genes, lukS-PV/lukF-PV, assessment of the capacity for biofilm formation and pathogenicity assays in Galleria mellonella. The overall carriage of PVL-encoding genes was over 40%, although reaching ~ 70 to 100% in the last years (2014 to 2019), potentially linked to the emergence of CC152 lineage. Strong biofilm production was a frequent trait of CC152 strains. Representative CC152 and CC121 strains showed higher virulence potential in the G. mellonella model when compared to reference strains, with variations within and between CCs. Our results highlight the importance of monitoring the emergent CC152-MSSA-PVL+ and other lineages, as they display important virulence traits that may negatively impact the management of SAB paediatric patients in Manhiça district, Mozambique.


Assuntos
Bacteriemia , Biofilmes , Infecções Comunitárias Adquiridas , Infecções Estafilocócicas , Staphylococcus aureus , Humanos , Moçambique/epidemiologia , Staphylococcus aureus/genética , Staphylococcus aureus/patogenicidade , Staphylococcus aureus/isolamento & purificação , Virulência/genética , Infecções Estafilocócicas/microbiologia , Infecções Estafilocócicas/epidemiologia , Biofilmes/crescimento & desenvolvimento , Pré-Escolar , Bacteriemia/microbiologia , Bacteriemia/epidemiologia , Infecções Comunitárias Adquiridas/microbiologia , Lactente , Animais , Exotoxinas/genética , Toxinas Bacterianas/genética , Leucocidinas/genética , Fatores de Virulência/genética , Feminino , Masculino , Mariposas/microbiologia
5.
Microbiol Spectr ; 12(4): e0341623, 2024 Apr 02.
Artigo em Inglês | MEDLINE | ID: mdl-38446073

RESUMO

An increase in Klebsiella pneumoniae carbapenem-resistant human nosocomial strains is occurring in Europe, namely with the blaOXA-48-like and blaKPC-like genes. We determined the prevalence of carbapenemase-producing Enterobacterales clinical strains in companion animals in Portugal and characterized their mobile genetic elements. Susceptibility data of a consecutive collection of 977 Enterobacterales clinical strains from a Portuguese private veterinary diagnostic laboratory were evaluated (January-December 2020). Additional phenotypical and genotypical assays were performed in a subset of 261 strains with a resistant phenotype. Whole-genome sequencing was performed for carbapenemase-producing strains. The frequency of carbapenemase-producing Enterobacterales clinical strains in companion animals in Portugal was 0.51% (n = 5/977). Thus, five strains were characterized: (i) one OXA-181-producing K. pneumoniae ST273, (ii) two KPC-3-producing K. pneumoniae ST147; (iii) one KPC-3-producing K. pneumoniae ST392; and (iv) one OXA-48-producing E. coli ST127. The blaKPC-3 gene was located on transposon Tn4401d on IncFIA type plasmid for the K. pneumoniae ST147 strains and on a IncN-type plasmid for the K. pneumoniae ST392 strain, while blaOXA-181 gene was located on an IncX3 plasmid. All de novo assembled plasmids and plasmid-encoded transposons harboring carbapenemase genes were homologous to those previously described in the human healthcare. No plasmid replicons were detected on the OXA-48-producing E. coli ST127. The dissemination of carbapenem resistance is occurring horizontally via plasmid spreading from the human high burden carbapenem resistance setting to the companion animal sector. Furthermore, companion animals may act as reservoirs of carbapenem resistance. Implementation of carbapenemase detection methods in routine clinical veterinary microbiology is urgently needed. IMPORTANCE: This is the first study on the prevalence of carbapenemase-producing Enterobacterales (CPE) clinical strains from companion animals in Portugal. Despite the generally low prevalence of CPE in companion animals, it is imperative for veterinary diagnostic laboratories to employ diagnostic methods for carbapenemase detection. The resemblance found in the mobile genetic elements transporting carbapenemase genes between veterinary medicine and human medicine implies a potential circulation within a One Health framework.


Assuntos
Infecções por Klebsiella , Animais de Estimação , Humanos , Animais , Portugal/epidemiologia , Escherichia coli/genética , Proteínas de Bactérias/genética , beta-Lactamases/genética , Klebsiella pneumoniae/genética , Carbapenêmicos/farmacologia , Infecções por Klebsiella/microbiologia , Antibacterianos/farmacologia , Antibacterianos/uso terapêutico , Testes de Sensibilidade Microbiana
6.
BMJ Case Rep ; 17(2)2024 Feb 14.
Artigo em Inglês | MEDLINE | ID: mdl-38355207

RESUMO

Neonatal jaundice is a frequently observed occurrence in full-term newborns and typically manifests between 48 and 96 hours following birth. Early-onset jaundice is primarily induced by pathological factors, namely sepsis, hemolysis and an excessive accumulation of bilirubin resulting from the breakdown of red blood cells.We present a case involving a full-term newborn with an uneventful perinatal history, who exhibited jaundice within the initial day of life and was subsequently admitted to the neonatal intensive care unit to commence intensive phototherapy. Initial screenings for sepsis and blood group incompatibility yielded negative results. However, despite 6 hours of phototherapy, the bilirubin levels did not decrease, prompting an investigation into central nervous system haemorrhage, which uncovered the presence of a haemorrhagic stroke.After a worsening in neurological status with neonatal crisis and need for phenobarbital, a life-saving craniotomy was performed. Clinical evolution was good with no additional crisis detected after the early neonatal period and improvement in motor function at 2-month-old follow-up.


Assuntos
Icterícia Neonatal , Icterícia , Sepse , Humanos , Recém-Nascido , Lactente , Icterícia Neonatal/diagnóstico , Icterícia Neonatal/etiologia , Icterícia Neonatal/terapia , Bilirrubina , Unidades de Terapia Intensiva Neonatal , Fototerapia
7.
Nutr Metab Cardiovasc Dis ; 34(4): 1088-1096, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38403484

RESUMO

BACKGROUND AND AIMS: Bisphenol A (BPA), an endocrine disruptor widely used in food contact materials, has been linked to a worse health profile. This study intends to estimate the association between BPA exposure and cardiometabolic patterns at adolescence. METHODS AND RESULTS: Data from the Portuguese population-based birth cohort Generation XXI at the age of 13 were used (n = 2386 providing 3-day food diaries and fasting blood samples). BPA exposure was measured in 24-h urine from a subsample (n = 206) and then predicted in all participants using a random forest method and considering dietary intake from diaries. Three cardiometabolic patterns were identified (normal, modified lipid profile and higher cardiometabolic risk) using a probabilistic Gaussian mixture model. Multinomial regression models were applied to associate BPA exposure (lower, medium, higher) and cardiometabolic patterns, adjusting for confounders. The median BPA exposure was 1532 ng/d, corresponding to 29.4 ng/kg/d. Adolescents higher exposed to BPA (compared to medium and lower levels) had higher BMI z-score (kg/m2) (0.68 vs. 0.39 and 0.52, respectively; p = 0.008), higher levels of body fat (kg) (16.3 vs. 13.8 and 14.6, respectively; p = 0.002), waist circumference (76.2 vs. 73.7 and 74.9, respectively; p = 0.026), insulinemia (ug/mL) (14.1 vs. 12.7 and 13.1, respectively; p = 0.039) and triglyceridemia (mg/dL) (72.7 vs. 66.1 and 66.5, respectively; p = 0.030). After adjustment, a significant association between higher BPA and a higher cardiometabolic risk pattern was observed (OR: 2.55; 95%CI: 1.41, 4.63). CONCLUSION: Higher BPA exposure was associated with a higher cardiometabolic risk pattern in adolescents, evidencing the role of food contaminants in health.


Assuntos
Doenças Cardiovasculares , Disruptores Endócrinos , Humanos , Adolescente , Compostos Benzidrílicos/efeitos adversos , Compostos Benzidrílicos/urina , Fenóis/efeitos adversos , Fenóis/urina , Disruptores Endócrinos/efeitos adversos , Disruptores Endócrinos/urina , Doenças Cardiovasculares/induzido quimicamente , Doenças Cardiovasculares/diagnóstico , Doenças Cardiovasculares/epidemiologia
10.
J Health Commun ; 28(sup2): 78-86, 2023 10 31.
Artigo em Inglês | MEDLINE | ID: mdl-38146153

RESUMO

Innovative social behavior change communication (SBCC) can help improve child nutrition, but little is known about the process of implementing innovative nutrition SBCC strategies in resource-poor settings and associated challenges. This research study examines emotional demonstrations (Emo-Demos), interactive game-like group activities that aim to spark behavior change by pulling emotional levers. It seeks to determine whether they are feasible and acceptable for implementers and targeted community members in rural Mozambique, aiming to draw lessons for the application of similar highly interactive SBCC approaches in resource-poor settings-a key equity issue. This is done through a series of structured observations of the approach being delivered in seven communities as well as interviews with facilitators and participants. Results show the Emo-Demos were generally feasible to implement as planned and largely acceptable for both facilitators and participants. However, facilitators did not always understand the theory behind them, the importance of them being interactive, and the exact steps that needed to be followed to do them correctly. Participants universally reported enjoying the sessions and understood the lessons taught, and were able to translate them into potential behavior changes. However, few reported the expected emotional reaction to the sessions, and some had difficulty understanding the symbolic use of props in the exercises. The results underline the importance of strong training of SBCC facilitators, including on underlying theory; adapting approaches to local realities; and considering the incentives for participants to attend. These steps can help ensure high-quality SBCC that functions even in resource-poor settings, increasing intervention equity.


Assuntos
Terapia Comportamental , Motivação , Criança , Humanos , Moçambique , Exercício Físico , Inquéritos e Questionários
12.
Food Res Int ; 173(Pt 1): 113251, 2023 11.
Artigo em Inglês | MEDLINE | ID: mdl-37803563

RESUMO

Bisphenol A (BPA) is an endocrine disruptor used in food contact materials, by the application of polycarbonate plastics and epoxy resins. The main objective of this study is to compare the estimate of daily BPA exposure at 13 years of age and in the adult Portuguese population, using different methodological approaches, and assess the associations between this exposure and sociodemographic characteristics. METHODOLOGY: Cross-sectional data of 13-years follow-up from a population-based birth cohort Generation XXI (GXXI) (n = 2804) and from the National Food, Nutrition and Physical Activity Survey (IAN-AF 2015-2016) (n = 3845, ≥18 years old) was used. Dietary information was collected through three food diaries for adolescents and two non-consecutive 24-hour-recalls for adults. To estimate the daily exposure to BPA, three methodological approaches were used. "Food groups attribution" merged the food consumption data with the concentration of BPA in food groups. "Regression tree model" and "random forest" combined food consumption information with urinary BPA, measured in a subsample of 24-hour urine (in adolescents n = 216, and in adults n = 82), both used to predict BPA exposure in the remaining sample. The fit-index of the methodologies was assessed through the root mean square error (RMSE), mean absolute error (MAE) and Spearman correlation coefficient (ρ). Associations between BPA exposure and sociodemographic variables were tested by linear regression models, adjusted for sex, age groups (in adults) and educational level. Tolerable Daily Intake (TDI) of 0.2 ng/kg body weight (bw), recently proposed by the European Food Safety Authority (EFSA), was used for the risk characterization of BPA exposure. RESULTS: The "random forest" was found as the best methodology to estimate the daily BPA exposure (adolescents: RMSE = 0.989, MAE = 0.727, ρ = 0.168; adults: RMSE = 0.193, MAE = 0.147, ρ = 0.250). The median dietary BPA exposure, calculated by "food groups attribution", was 79.1 and 46.1 ng/kg bw/day for adolescents and adults, respectively, while "random forest" estimated a BPA exposure of 26.7 and 38.0 ng/kg bw/day. 99.9% of the Portuguese population presented a daily exposure above TDI. Male adolescents, females and higher educated adults, were those more exposed to BPA. CONCLUSIONS: The estimated daily BPA exposure strongly depends on the methodological approach. Food groups attribution may overestimate the exposure while the random forest appears to be a better methodological approach to estimate BPA exposure. Nevertheless, for all methods, the Portuguese population presented an unsafe BPA exposure by largely exceeding the safe levels proposed by EFSA.


Assuntos
Compostos Benzidrílicos , Fenóis , Adulto , Feminino , Adolescente , Humanos , Estudos Transversais , Fenóis/urina , Dieta , Peso Corporal
13.
Front Microbiol ; 14: 1208131, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37555065

RESUMO

Background: Staphylococcus aureus is one of the main causes of bacteraemia, associated with high mortality, mainly due to the occurrence of multidrug resistant (MDR) strains. Data on antibiotic susceptibility and genetic lineages of bacteraemic S. aureus are still scarce in Mozambique. The study aims to describe the antibiotic susceptibility and clonality of S. aureus isolated from blood cultures of children admitted to the Manhiça District Hospital over two decades (2001-2019). Methods: A total of 336 S. aureus isolates detected in blood cultures of children aged <5 years were analyzed for antibiotic susceptibility by disk diffusion or minimal inhibitory concentration, and for the presence of resistance determinants by PCR. The clonality was evaluated by SmaI-PFGE, spa typing, and MLST. The SCCmec element was characterized by SCCmec typing. Results: Most S. aureus (94%, 317/336) were resistant to at least one class of antibiotics, and one quarter (25%) showed a MDR phenotype. High rates of resistance were detected to penicillin (90%) and tetracycline (48%); followed by erythromycin/clindamycin (25%/23%), and co-trimoxazole (11%), while resistance to methicillin (MRSA strains) or gentamicin was less frequent (≤5%). The phenotypic resistance to distinct antibiotics correlated well with the corresponding resistance determinants (Cohen's κ test: 0.7-1.0). Molecular typing revealed highly diverse clones with predominance of CC5 (17%, 58/336) and CC8 (16%), followed by CC15 (11%) and CC1 (11%). The CC152, initially detected in 2001, re-emerged in 2010 and became predominant throughout the remaining surveillance period, while other CCs (CC1, CC5, CC8, CC15, CC25, CC80, and CC88) decreased over time. The 16 MRSA strains detected belonged to clones t064-ST612/CC8-SCCmecIVd (69%, 11/16), t008-ST8/CC8-SCCmecNT (25%, 4/16) and t5351-ST88/CC88-SCCmecIVa (6%, 1/16). Specific clonal lineages were associated with extended length of stay and high in-hospital mortality. Conclusion: We document the circulation of diverse MDR S. aureus causing paediatric bacteraemia in Manhiça district, Mozambique, requiring a prompt recognition of S. aureus bacteraemia by drug resistant clones to allow more targeted clinical management of patients.

14.
Vet Sci ; 10(7)2023 Jun 29.
Artigo em Inglês | MEDLINE | ID: mdl-37505828

RESUMO

A growing population increases the demand for food, but short shelf-lives and microbial hazards reduce supply and increase food waste. Fresh fish is highly perishable and may be consumed raw, such as salmon in sushi. This work aims to identify strategies to improve the shelf-life and safety of fresh salmon, using available methods (i.e., vacuum) and exploring the use of natural preservatives (i.e., seasonings). Vacuum packaging and good hygiene practices (which reduce initial flora) extended shelf-life up to 20 days. Carnobacterium maltaromaticum was dominant in vacuum packaging conditions and showed potential for inhibiting Listeria monocytogenes. For natural preservatives, L. monocytogenes required higher inhibitory concentrations in vitro when compared to the 10 spoilage bacteria isolated from fresh salmon fillets, presenting a minimum inhibitory concentration (MIC) of 0.13% for oregano essential oil (OEO), 10% for lemon juice, 50 mg mL-1 for garlic powder, and >10% for NaCl. A good bacteriostatic and bactericidal effect was observed for a mixture containing 5% NaCl, 0.002% OEO, 2.5% lemon juice, and 0.08 mg mL-1 garlic powder. Finally, using the salmon medium showed an adequate correlation with the commercial culture medium.

15.
BMJ Open ; 13(6): e070765, 2023 06 26.
Artigo em Inglês | MEDLINE | ID: mdl-37369423

RESUMO

OBJECTIVES: Owing to its ease-of-use and excellent diagnostic performance for the assessment of respiratory symptoms, point-of-care lung ultrasound (POC-LUS) has emerged as an attractive skill in resource-low settings, where limited access to specialist care and inconsistent radiology services erode health equity.To narrow down the research to practice gap, this study aims to gain in-depth insights in the perceptions on POC-LUS and computer-assisted POC-LUS for the diagnosis of lower respiratory tract infections (LRTIs) in a low-income and middle-income country (LMIC) of sub-Saharan Africa. DESIGN AND SETTING: Qualitative study using face-to-face semi-structured interviews with three pneumologists and five general physicians in a tertiary centre for pneumology and tuberculosis in Benin, West Africa. The center hosts a prospective cohort study on the diagnostic performance of POC-LUS for LRTI. In this context, all participants started a POC-LUS training programme 6 months before the current study. Transcripts were coded by the interviewer, checked for intercoder reliability by an independent psychologist, compared and thematically summarised according to grounded theory methods. RESULTS: Various barriers- and facilitators+ to POC-LUS implementation were identified related to four principal categories: (1) hospital setting (eg, lack of resources for device renewal or maintenance-, need for POC tests+), (2) physician's perceptions (eg, lack of opportunity to practice-, willingness to appropriate the technique+), (3) tool characteristics (eg, unclear lifespan-, expedited diagnosis+) and (4) patient's experience (no analogous image to keep-, reduction in costs+). Furthermore, all interviewees had positive attitudes towards computer-assisted POC-LUS. CONCLUSIONS: There is a clear need for POC affordable lung imaging techniques in LMIC and physicians are willing to implement POC-LUS to optimise the diagnostic approach of LRTI with an affordable tool. Successful integration of POC-LUS into clinical routine will require adequate responses to local challenges related to the lack of available maintenance resources and limited opportunity to supervised practice for physicians.


Assuntos
Clínicos Gerais , Infecções Respiratórias , Humanos , Sistemas Automatizados de Assistência Junto ao Leito , Benin , Estudos Prospectivos , Reprodutibilidade dos Testes , Ultrassonografia/métodos , Pulmão
16.
Front Microbiol ; 14: 1167834, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37138637

RESUMO

Staphylococcus pseudintermedius is the main bacterial pathogen of skin and soft-tissue infections (SSTIs) in companion animals. Antimicrobial resistance in this species is a growing public health concern. This study aims to characterize a collection of S. pseudintermedius causing SSTIs in companion animals, establishing the main clonal lineages and antimicrobial resistance traits. The collection corresponded to all S. pseudintermedius (n = 155) causing SSTIs in companion animals (dogs, cats and one rabbit) collected between 2014 and 2018 at two laboratories in Lisbon, Portugal. Susceptibility patterns were established by disk diffusion for 28 antimicrobials (15 classes). For antimicrobials without clinical breakpoints available, a cut-off value (COWT) was estimated, based on the distribution of the zones of inhibition. The blaZ and mecA genes were screened for the entire collection. Other resistance genes (e.g., erm, tet, aadD, vga(C), dfrA(S1)) were searched only for those isolates showing an intermediate/resistance phenotype. For fluoroquinolone resistance, we determined the chromosomal mutations in the target genes grlA and gyrA. All the isolates were typed by PFGE following SmaI macrorestriction and isolates representative of each PFGE type were further typed by MLST. Forty-eight out of the 155 S. pseudintermedius isolates (31.0%) were methicillin-resistant (mecA +, MRSP). Multidrug-resistant (MDR) phenotypes were detected for 95.8% of the MRSP and 22.4% of the methicillin-susceptible (MSSP) isolates. Of particular concern, only 19 isolates (12.3%) were susceptible to all antimicrobials tested. In total, 43 different antimicrobial resistance profiles were detected, mostly associated with the carriage of blaZ, mecA, erm(B), aph3-IIIa, aacA-aphD, cat pC221, tet(M) and dfr(G) genes. The 155 isolates were distributed within 129 PFGE clusters, grouped by MLST in 42 clonal lineages, 25 of which correspond to new sequence types (STs). While ST71 remains the most frequent S. pseudintermedius lineage, other lineages that have been replacing ST71 in other countries were detected, including ST258, described for the first time in Portugal. This study revealed a high frequency of MRSP and MDR profiles among S. pseudintermedius associated with SSTIs in companion animals in our setting. Additionally, several clonal lineages with different resistance profiles were described, evidencing the importance of a correct diagnosis and selection of the therapy.

17.
Animals (Basel) ; 13(7)2023 Apr 06.
Artigo em Inglês | MEDLINE | ID: mdl-37048526

RESUMO

Staphylococcus pseudintermedius is the main bacterial cause of skin and soft tissue infections (SSTIs) in companion animals, particularly dogs. The emergence of methicillin-resistant S. pseudintermedius (MRSP) strains, frequently with multidrug resistance phenotypes is a public health concern. This study aimed to evaluate efflux, a resistance mechanism still poorly characterized in S. pseudintermedius, as a contributor to biocide and fluoroquinolone resistance. Susceptibility to the efflux pump substrates ethidium bromide (EtBr), tetraphenylphosphonium bromide (TPP) and ciprofloxacin (CIP) was evaluated by minimum inhibitory concentration (MIC) determination for 155 SSTIs-related S. pseudintermedius in companion animals. EtBr and TPP MIC distributions were analyzed to estimate cut-off (COWT) values. The effect of the efflux inhibitors (EIs) thioridazine and verapamil was assessed upon MICs and fluorometric EtBr accumulation assays, performed with/without glucose and/or EIs. This approach detected a non-wild type population towards TPP with increased efflux, showed to be strain-specific and glucose-dependent. Resistance to fluoroquinolones was mainly linked to target gene mutations, yet a contribution of efflux on CIP resistance levels could not be ruled out. In sum, this study highlights the relevance of efflux-mediated resistance in clinical S. pseudintermedius, particularly to biocides, and provides a methodological basis for further studies on the efflux activity on this important pathogen of companion animals.

18.
Eur J Clin Microbiol Infect Dis ; 42(5): 653-659, 2023 May.
Artigo em Inglês | MEDLINE | ID: mdl-36932278

RESUMO

Staphylococcus aureus bacteraemia (SAB) is one of the most common bloodstream infections globally. Data on the burden and epidemiology of community-acquired SAB in low-income countries are scarce but needed to define preventive and management strategies. Blood samples were collected from children < 5 years of age with fever or severe disease admitted to the Manhiça District Hospital for bacterial isolation, including S. aureus. Between 2001 and 2019, 7.6% (3,197/41,891) of children had bacteraemia, of which 12.3% corresponded to SAB. The overall incidence of SAB was 56.1 episodes/100,000 children-years at risk (CYAR), being highest among neonates (589.8 episodes/100,000 CYAR). SAB declined significantly between 2001 and 2019 (322.1 to 12.5 episodes/100,000 CYAR). In-hospital mortality by SAB was 9.3% (31/332), and significantly associated with infections by multidrug-resistant (MDR) strains (14.7%, 11/75 vs. 6.9%, 14/204 among non-MDR, p = 0.043) and methicillin-resistant S. aureus (33.3%, 5/15 vs. 7.6%, 20/264 among methicillin-susceptible S. aureus, p = 0.006). Despite the declining rates of SAB, this disease remains an important cause of death among children admitted to MDH, possibly in relation to the resistance to the first line of empirical treatment in use in our setting, suggesting an urgent need to review current policy recommendations.


Assuntos
Bacteriemia , Infecção Hospitalar , Staphylococcus aureus Resistente à Meticilina , Infecções Estafilocócicas , Recém-Nascido , Criança , Humanos , Pré-Escolar , Infecções Estafilocócicas/microbiologia , Bacteriemia/microbiologia , Staphylococcus aureus , Infecção Hospitalar/microbiologia , Moçambique/epidemiologia , Hospitais de Distrito
19.
Nutrients ; 15(6)2023 Mar 14.
Artigo em Inglês | MEDLINE | ID: mdl-36986129

RESUMO

(1) Background: serious games seem to show promising strategies to promote treatment compliance and motivate behavior changes, and some studies have proven to contribute to the literature on serious games. (2) Methods: this systematic review aimed to analyze the effect of serious games in promoting healthy eating behaviors, effectively preventing childhood obesity, and improving physical activity in children. Five electronic bibliographic databases-PubMed, ACM Digital Library, Games for Health Journal, and IEEE Xplore were used to conduct a systematic literature search based on fixed inclusion and exclusion criteria. Peer-reviewed journal articles published between 2003 and 2021 were selected for data extraction. (3) Results: a total of 26 studies were identified, representing 17 games. Half of the studies tested interventions for healthy eating and physical education. Most of the intervention's games were designed according to specific behavioral change theories, predominantly the social cognitive theory. (4) Conclusions: studies confirmed the potential of serious games for obesity prevention but considering the restrictions encountered, we exhort for novel designs with different theoretical perspectives.


Assuntos
Dieta Saudável , Obesidade Infantil , Humanos , Criança , Obesidade Infantil/psicologia , Exercício Físico , Cooperação do Paciente , Comportamento Alimentar
20.
Eur. j. clin. microbiol. infect. dis ; 42(5): 653-659, mar 18, 2023. tab, graf
Artigo em Inglês | RDSM | ID: biblio-1526972

RESUMO

Staphylococcus aureus bacteraemia (SAB) is one of the most common bloodstream infections globally. Data on the burden and epidemiology of community-acquired SAB in low-income countries are scarce but needed to define preventive and management strategies. Blood samples were collected from children < 5 years of age with fever or severe disease admitted to the Manhiça District Hospital for bacterial isolation, including S. aureus. Between 2001 and 2019, 7.6% (3,197/41,891) of children had bacteraemia, of which 12.3% corresponded to SAB. The overall incidence of SAB was 56.1 episodes/100,000 children-years at risk (CYAR), being highest among neonates (589.8 episodes/100,000 CYAR). SAB declined significantly between 2001 and 2019 (322.1 to 12.5 episodes/100,000 CYAR). In-hospital mortality by SAB was 9.3% (31/332), and significantly associated with infections by multidrug-resistant (MDR) strains (14.7%, 11/75 vs. 6.9%, 14/204 among non-MDR, p = 0.043) and methicillin-resistant S. aureus (33.3%, 5/15 vs. 7.6%, 20/264 among methicillin-susceptible S. aureus, p = 0.006). Despite the declining rates of SAB, this disease remains an important cause of death among children admitted to MDH, possibly in relation to the resistance to the first line of empirical treatment in use in our setting, suggesting an urgent need to review current policy recommendations.


Assuntos
Humanos , Masculino , Feminino , Pré-Escolar , Infecções Estafilocócicas/microbiologia , Bacteriemia/microbiologia , Criança , Infecção Hospitalar/microbiologia , Moçambique/epidemiologia
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...