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Burkholderia pseudomallei is a Gram-negative soil saprophyte with the potential to cause melioidosis, an opportunistic disease with a high mortality potential. Periodic case reports of melioidosis in or imported from Africa occur in the literature dating back decades. Furthermore, statistical models suggest Western sub-Saharan Africa as a high-risk zone for the presence of B. pseudomallei. A recent case report from the United Kingdom of a returning traveler from Ghana highlights the need for environmental studies in Ghana. We examined 100 soil samples from a rice farm in south-central Ghana. Soil was subjected to selective enrichment culture for B. pseudomallei using threonine-basal salt solution with colistin (TBSS-C50) and erythritol medium, as described in the literature. Bacterial cultures were identified with standard biochemical tests, a rapid antigen detection assay, and real-time PCR specific for B. pseudomallei. Of the 100 soil samples, 55% yielded cultures consistent with B. pseudomallei on Ashdown's agar as well as by capsular polysaccharide antigen production. This is the first confirmatory report of culture-confirmed B. pseudomallei in the environment of Ghana. Our study emphasizes the need for further exploration of the burden of human melioidosis in Ghana. We recommend that local clinicians familiarize themselves with the diagnosis and clinical management of melioidosis, while laboratories develop capacity for the safe isolation and identification of B. pseudomallei. IMPORTANCE We present the first confirmation of the presence of B. pseudomallei in the environment of Ghana. This study will bring attention to a disease with the potential to cause significant morbidity and mortality in Ghana, but which has gone completely unrecognized until this point. Furthermore, this work would encourage local clinicians to familiarize themselves with the diagnosis and clinical management of melioidosis and laboratories to develop capacity for the safe isolation and identification of B. pseudomallei.
Assuntos
Burkholderia pseudomallei , Melioidose , Burkholderia pseudomallei/genética , Gana , Humanos , Melioidose/diagnóstico , Melioidose/microbiologia , Solo , Microbiologia do SoloRESUMO
INTRODUCTION: We aimed to determine the level of achievement of key performance indicators (KPIs) during initial assessment and management of injured persons, as assessed by independent observers, at district and regional hospitals in Ghana. METHODS: Trained observers were stationed at emergency units of six district (first level) and two regional (referral) hospitals, from October 2020 to February 2021, to observe management of injured patients by health service providers. Achievement of KPIs was assessed for all injured patients and for seriously injured patients (admitted for ≥ 24 h, referred, or died). RESULTS: Management of 1006 injured patients was observed. Road traffic crash was the most common mechanism (63%). Completion of initial triage ranged from 65% for oxygen saturation to 92% for mobility assessment. For primary survey, airway was assessed in 77% of patients, chest examination performed in 66%, and internal abdominal bleeding assessed in 43%. Reassessment rates were low, ranging from 16% for respiratory rate to 23% for level of consciousness. Thirty-one percent of patients were seriously injured. Completion of KPIs was higher for these patients, but reassessment remained low, ranging from 25% for respiratory rate to 33% for level of consciousness. CONCLUSION: KPIs were performed at a high level, but several specific elements should be performed more frequently, such as oxygen saturation and assessment for internal abdominal bleeding. Reassessment needs to be performed more frequently, especially for seriously injured patients. Overall, care for the injured at non-tertiary hospitals in Ghana could be improved with a more systematic approach.
Assuntos
Serviço Hospitalar de Emergência , Triagem , Gana , Hospitalização , Hospitais , HumanosRESUMO
Phosphatidylinositol (PI) and its phosphorylated derivatives known as phosphoinositides (PIPs), are essential regulators of cell signaling and membrane trafficking, cytoskeletal dynamics, and nuclear functions. Disruption of PI metabolism is associated with disorders such as immune dysfunction, cardiovascular disease, and cancer; therefore, there is currently great interest in studying PIPs and their metabolic enzymes. Here, we describe a method for the separation of fluorescent PI and its seven fluorescent phosphorylated derivatives by CE-LIF. The CE method utilizes a Tris buffer and sodium deoxycholate in the presence of 30% 1-propanol and 5% of a dynamic coating reagent, EOTrol low reverse (EOTrol LR). It is simple, fast, highly sensitive, and it offers LODs in the order of 1.5 amol. The effect of cations such as lithium, sodium, potassium, cesium, barium, manganese, zinc, magnesium, calcium, spermine, and gentamicin were evaluated. Calcium and magnesium provided the best selectivity and resolution for the separation of the analytes while magnesium offered the best data reproducibility. The developed CE method would be useful in the studies of enzymatic activity in the PI and PIPs metabolic pathways using CE-based in vitro and CE cell-based assays, and/or for drug screening.