Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 243
Filtrar
1.
Int J Clin Pharm ; 2024 Oct 04.
Artigo em Inglês | MEDLINE | ID: mdl-39365523

RESUMO

BACKGROUND: There is currently no validated tool available for assessing the potential significance of pharmacist interventions in Vietnam. AIM: This study aimed to translate the CLEO tool from French into Vietnamese, validate the Vietnamese version, and demonstrate its feasibility in daily practice. METHOD: The CLEO tool was translated into Vietnamese (CLEOVN) using a 5-step process by bilingual experts. A total of 100 scenarios were compiled from clinical cases from nine hospitals evaluated by seven clinical pharmacists to determine inter-rater reliability and 30 out of 100 scenarios were re-evaluated one month later to determine test-retest reliability. Reliability was quantified using the intra-class correlation coefficient (ICC). A 20-item questionnaire on a 7-point Likert scale assessed the tool's appropriateness, acceptability, precision, and feasibility. RESULTS: Inter-rater reliability was good for clinical dimension (ICCA,1 = 0.71), excellent for economic dimension (ICCA,1 = 0.86), and fair for organizational/operational dimension (ICCA,1 = 0.56). Test-retest reliability scores were excellent for clinical (I̅C̅C̅A,1 = 0.79), excellent for economic (I̅C̅C̅A,1 = 0.84), and fair for organizational/operational (I̅C̅C̅A,1 = 0.56). The tool was rated as appropriate (mean = 5.86; SD = 1.03), acceptable (mean = 5.19; SD = 1.12), precise (mean = 5.71; SD = 1.17), and feasible (mean = 5.05; SD = 1.24). The maximum time required to evaluate an intervention was three minutes. CONCLUSION: The CLEOVN tool was successfully translated and validated for reliability, appropriateness, acceptability, precision, and feasibility. It will be suitable to evaluate the value of clinical pharmacy interventions.

2.
BMC Infect Dis ; 24(1): 945, 2024 Sep 09.
Artigo em Inglês | MEDLINE | ID: mdl-39251986

RESUMO

BACKGROUND: The mortality risk of co-infections/secondary infections (CoI/ScI) is under-reported in patients with non-critical COVID-19, leading to the under-management of CoI/ScI and publication bias in the medical literature. We aimed to investigate the association between CoI/ScI and mortality in patients hospitalised with mild-to-severe COVID-19. METHODS: We conducted a retrospective cohort study at a COVID-19 treatment hospital in Vietnam and collected all eligible medical records, with CoI/ScI status as the exposure (non-CoI/ScI and CoI/ScI, with the latter including nature of pathogen [bacterial, fungal, or bacterial + fungal] and multidrug-resistance pathogen [no MDRp or ≥ 1 MDRp]). The outcome was all-cause mortality, defined as in-hospital death by all causes or being discharged under critical illness. We used time-dependent analysis to report rates of mortality with 95% confidence intervals (95% CI, Poisson regression) and hazard ratios (HR) with 95% CI (Cox proportional hazards regression with Holm's method for multiplicity control). RESULTS: We followed 1466 patients (median age 61, 56.4% being female) for a median of 9 days. We recorded 387 (26.4%) deaths (95/144 [66.0%] in the CoI/ScI group and 292/1322 [22.1%] in the non-CoI/ScI group). Adjusted mortality rates (per 100 person-days) of the CoI/ScI (6.4, 95% CI 5.3 to 7.8), including bacterial (8.0, 95% CI 7.2 to 8.9), no MDRp (5.9, 95% CI 4.8 to 7.4), and ≥ 1 MDRp (9.0, 95% CI 8.2 to 10.0) groups were higher than that of the non-CoI/ScI group (2.0, 95% CI 1.8 to 2.2). These corresponded to higher risks of mortality in the overall CoI/ScI (HR 3.27, 95% CI 2.58 to 4.13, adjusted p < 0.001), bacterial CoI/ScI (HR 3.79, 95% CI 2.97 to 4.83, adjusted p < 0.001), no MDRp CoI/ScI (HR 3.13, 95% CI 2.42 to 4.05, adjusted p < 0.001), and ≥ 1 MDRp CoI/ScI group (HR 3.89, 95% CI 2.44 to 6.21, adjusted p < 0.001). We could not attain reliable estimates for fungal and bacterial + fungal CoI/ScI. CONCLUSION: Compared with the non-CoI/ScI group, patients with CoI/ScI had a significantly higher risk of all-cause mortality, regardless of resistance status. More evidence is needed to confirm the mortality risks in patients with fungal or bacterial + fungal CoI/ScI.


Assuntos
COVID-19 , Coinfecção , SARS-CoV-2 , Humanos , Vietnã/epidemiologia , COVID-19/mortalidade , COVID-19/epidemiologia , COVID-19/complicações , Masculino , Feminino , Estudos Retrospectivos , Pessoa de Meia-Idade , Coinfecção/mortalidade , Coinfecção/epidemiologia , Coinfecção/microbiologia , Idoso , Adulto , Infecções Bacterianas/mortalidade , Infecções Bacterianas/epidemiologia , Micoses/epidemiologia , Micoses/mortalidade , Micoses/microbiologia , Hospitalização/estatística & dados numéricos , Mortalidade Hospitalar
3.
Heliyon ; 10(17): e37142, 2024 Sep 15.
Artigo em Inglês | MEDLINE | ID: mdl-39286112

RESUMO

Rice serves as a crucial staple food crop for half of the world's population. In the Vietnamese Mekong Delta (VMD), rice production plays a vital role in national food security. However, the majority of the existing intensified rice cultivation schemes in the VMD, which are typically traditional, have rendered many farmers' livelihoods unsustainable due to issues such as land degradation, water pollution, health risks, and low profitability. Therefore, it is imperative to explore alternative sustainable farming systems. This study investigates the benefits of two ecological farming systems, specifically organic rice and rice mixed with lotus, as alternatives to conventional rice farming in the upper VMD floodplain province of An Giang. These two farming systems have demonstrated long-term socioecological and economic advantages. On the one hand, they allow the introduction of rice products to the market at more affordable prices. Additionally, they contribute to improved water quality, improved soil fertility, and increased biodiversity such as bird, fish, and plant species compared to traditional rice farming systems. Although we acknowledge that the availability of floodwater poses a significant constraint for alternative farming systems, the business opportunities and socioecological benefits associated with these systems outweigh the limitations. Our findings provide evidence that ecological farming practices that support rice cultivation represent promising alternatives to sustainable rice production, which can help mitigate vulnerabilities in intensified rice farming systems and can be scaled up for other floodplain provinces in the VMD and beyond.

4.
Emerg Infect Dis ; 30(11)2024 Sep 25.
Artigo em Inglês | MEDLINE | ID: mdl-39322418

RESUMO

We studied a community cluster of 25 mpox cases in Vietnam caused by emerging monkeypox virus sublineage C.1 and imported into Vietnam through 2 independent events; 1 major cluster carried a novel APOBEC3-like mutation. Three patients died; all had advanced HIV co-infection. Viral evolution and its potential consequences should be closely monitored.

5.
Artigo em Inglês | MEDLINE | ID: mdl-39322986

RESUMO

BACKGROUND: HIV drug resistance (HIVDR) can reduce the effectiveness of antiretroviral (ARV) drugs in preventing morbidity and mortality, limit options for treatment, and prevention. Our study aimed to assess HIV-1 subtypes and HIVDR among key populations in HIV Sentinel Surveillance Plus Behavior (HSS+) in 2018 and 2020. METHODS: One-stage venue-based cluster sampling was used to recruit participants at hotspots identified for Men who have sex with men (MSM) in 7 provinces and SEM females and female sex worker (FSW) in 13 provinces. Participants completed a standard questionnaire about risk and preventive behaviors, and ART history, and provided intravenous blood for HIV testing. HIVDR testing was conducted on HIV-positive samples with VL >1,000 copies/ml. RESULTS: A total of 185/435 (42.5%) HIV-positive samples had viral load ≥1,000 copies/ml, of which 130/136 from MSM and 26/49 from FSW, were successfully sequenced. Six HIV-1 subtypes were detected (CRF01_AE, A, CRF07/08_BC, B, C, CRF25_cpx), with CRF01_AE (82.7%, 129/156) the most common. Drug resistance mutations were detected in 16.7% of participants overall (26/156), in 15.4% (20/130) of MSM, and in 23.1% (6/26) of FSW. Mutations associated with resistance to NNRTI were the most frequently detected (73.1%, 19/26). The high level of resistance was presented in NNRTI and NRTI classes. There are 10 major resistance mutations detected with NRTI (M184VI-25.0%, K65KR-50.0%, Y115F-25%), NNRTI (K103N-21.1%, E138A-10.5%, V106M-5.3%, K101E-5.3%, G190A-5.3%) PI (L33F-40.0%, M46L-20.0%). CONCLUSIONS: Vietnam's HSS+ system identified an emerging strain of HIV-1 and mutations associated with resistance to multiple drug classes among MSM and FSW.

7.
Cureus ; 16(8): e67256, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-39301377

RESUMO

BACKGROUND: Step-based dosing of anticoagulants has been widely implemented for the treatment of coronavirus disease 2019 (COVID-19), but no studies have comprehensively evaluated the effectiveness and safety of this approach. We aimed to investigate whether step-based dosing of anticoagulants was associated with clinical outcomes in patients with COVID-19 compared with standard prophylactic dosing. METHOD: We conducted a retrospective cohort study on adults hospitalized with moderate-to-severe COVID-19. The exposure was step-based dosing of anticoagulants, including prophylactic anticoagulants (PrA), prophylactic-switching-to-therapeutic anticoagulants (Pr-to-ThA), therapeutic anticoagulants (ThA), and therapeutic-switching-to-prophylactic anticoagulants (Th-to-PrA). The primary effectiveness outcome was a composite of all-cause mortality, admission to an intensive care unit (ICU admission), stroke, and venous thromboembolism (VTE). The primary safety outcome was a composite of major and minor/clinically relevant non-major (CRNM) bleeding. RESULTS: Among 1,081 records for analysis (mean age 59.9, 49.9% being female), during a median follow-up of 15 days, the primary effectiveness outcome occurred in 333 patients (33.5% in the PrA group, 24.6% in the Pr-to-ThA group, 23.7% in the Th-to-PrA group, and 38.0% in the ThA group). Compared with the PrA group, patients receiving Pr-to-ThA had a lower risk of the primary effectiveness outcome (adjusted odds ratio (OR) 0.64, 95% CI: 0.45 to 0.90, Dunnett-adjusted p = 0.01), while those in the Th-to-PrA and ThA were more likely to experience the primary safety outcome (Th-to-PrA, aOR = 3.00, 95% CI: 1.53 to 5.89; ThA, aOR = 3.05, 95% CI: 1.61 to 5.79). CONCLUSION: In adults hospitalized with moderate-to-severe COVID-19, compared with standard PrA, the step-based dose-increasing therapy was associated with a lower composite risk of all-cause mortality, ICU admission, stroke, or VTE without evidence of a higher risk of bleeding. ThA dosing was associated with an increase in the bleeding risk, primarily minor and CRNM bleeding.

9.
Sci Adv ; 10(27): eadk5430, 2024 Jul 05.
Artigo em Inglês | MEDLINE | ID: mdl-38968357

RESUMO

Mangroves' ability to store carbon (C) has long been recognized, but little is known about whether planted mangroves can store C as efficiently as naturally established (i.e., intact) stands and in which time frame. Through Bayesian logistic models compiled from 40 years of data and built from 684 planted mangrove stands worldwide, we found that biomass C stock culminated at 71 to 73% to that of intact stands ~20 years after planting. Furthermore, prioritizing mixed-species planting including Rhizophora spp. would maximize C accumulation within the biomass compared to monospecific planting. Despite a 25% increase in the first 5 years following planting, no notable change was observed in the soil C stocks thereafter, which remains at a constant value of 75% to that of intact soil C stock, suggesting that planting effectively prevents further C losses due to land use change. These results have strong implications for mangrove restoration planning and serve as a baseline for future C buildup assessments.


Assuntos
Biomassa , Carbono , Solo , Áreas Alagadas , Carbono/metabolismo , Solo/química , Rhizophoraceae/crescimento & desenvolvimento , Rhizophoraceae/metabolismo , Teorema de Bayes , Ecossistema
10.
RSC Adv ; 14(33): 23645-23660, 2024 Jul 26.
Artigo em Inglês | MEDLINE | ID: mdl-39077327

RESUMO

MFe2O4 (M = Co, Fe, Mn) nanoparticles were successfully formed through the chemical co-precipitation technique. X-ray diffraction, scanning electron microscopy, and energy-dispersive X-ray analysis were used to investigate samples' structural properties. The investigated structural properties included phases formed, crystallite size, cation distribution, hopping length, bond length, bond angle, edge length, and shared and unshared octahedral edge length. Scanning electron micrographs of the prepared samples demonstrated well-defined crystalline nanoparticles. The grain diameter was 15, 9, and 34 nm for CoFe2O4, Fe3O4, and MnFe2O4, respectively. The energy-dispersive X-ray analysis confirmed the existence of every element (Co, Fe, and O) and no discernible impurities in the samples. The optical properties were studied in detail through photoluminescence (PL) spectroscopy and Raman spectroscopy. The presence of active modes in Raman spectra confirmed the spinel structure of the MFe2O4 nanoparticles. The direct bandgap energy estimated through UV-visible spectroscopy was about 2.59-2.64 eV, corresponding with the energy-band structures of the octahedral site (1.70 eV) and the tetrahedral site (0.9 eV). This result was further confirmed by PL emission spectra. Based on Mie theory and UV-visible and PL spectral data, the mechanism of photothermal characterization for MFe2O4 nanoparticles was determined. Investigating the changes in temperature of magnetic parameters including coercivity, squareness ratio, and saturation magnetization for MFe2O4 samples showed the dominant influence of ion distribution and A-A, A-B, and B-B exchange interactions. This study also showed that strong anisotropy and weak dipolar interaction tended to increase the coercivity and squareness ratio of CoFe2O4. Conversely, weaker anisotropy and stronger dipolar interaction corresponded with the small coercivity and squareness ratio of Fe3O4 and MnFe2O4 samples.

11.
Front Med (Lausanne) ; 11: 1345698, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38695034

RESUMO

Background: Antimicrobial Stewardship Programs (ASP) have been applied widely in high-resource countries to prevent surgical site infections (SSI). Evidence favoring ASP interventions (ASPi) in gastrointestinal surgeries from low and middle-income countries has been limited, especially in antimicrobial prophylaxis. We aimed to investigate this gap at a Vietnamese tertiary hospital. Methods: We conducted a retrospective cohort study on patients undergoing clean-contaminated surgeries in 2015 who received standard of care (SoC) or SoC + ASPi. Primary outcome was 30-day SSI incidence. Secondary outcomes included length of stay (LoS) after surgery (days), cost of antibiotics, and cost of treatment (USD). Results were controlled for multiplicity and reported with treatment effect and 95% confidence interval (95%CI). A predictive model was built and cross-validated to detect patients at high risk of SSI. Results: We included 395 patients for analysis (48.1% being female, mean age 49.4 years). Compared to patients receiving SoC, those with SoC + ASPi had a lower incidence of 30-day SSI (-8.8, 95%CI: -16.0 to -1.6, p = 0.042), shorter LoS after surgery (-1.1 days, 95%CI: -1.8 to -0.4, p = 0.004), and lower cost of antibiotics (-37.3 USD, 95%CI: -59.8 to -14.8, p = 0.012) and treatment (-191.1 USD, 95%CI: -348.4 to -33.8, p = 0.042). We estimated that by detecting patients at high risk of SSI with the predictive model and providing prophylactic measures, we could save 398120.7 USD per 1,000 cases of SSI. Conclusion: We found that ASPi were associated with a reduction in risks of SSI, hospital stays, and cost of antibiotics/treatment in a Vietnamese tertiary hospital.

12.
Clin Ophthalmol ; 18: 1217-1224, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38737597

RESUMO

Aim: To determine the prevalence of dry eye (DE) and some related factors in patients with type 2 diabetic nephropathy (T2DN). Methods: We performed a cross-sectional study on 338 people, who were divided into 2 groups: 169 T2DN patients and 169 patients diagnosed with type 2 diabetic mellitus (T2DM) without renal complications as a control group. The Ocular Surface Disease Index (OSDI) and test fluorescein tear-film break-up time (TBUT) were done in all 338 subjects. Patients with OSDI scores < 13 and TBUT values equal to or under 10 seconds were diagnosed with dry eye. Results: The prevalence of DE in T2DN patients was significantly higher than T2DM group (55.6% versus 37.3%). The T2DN groups with dry eye had a median duration of DM, the proportion of hypertension, peripheral nerve complications, anemia, proportion of using insulin, and concentration of plasma glucose, HbA1C, urea, creatinine, CRP-hs significantly higher than those of T2DN without dry eye. Advanced age, high HbA1C level, and decreased eGFR were independent factors associated with dry eye in T2DN patients. Conclusion: Dry eye was a common condition associated with advanced age, high HbA1C levels, and decreased GFR in T2DN patients.

13.
World J Surg Oncol ; 22(1): 141, 2024 May 28.
Artigo em Inglês | MEDLINE | ID: mdl-38802849

RESUMO

BACKGROUND: SMA-first approach in pancreatoduodenectomy (PD) has been widely applied in open surgery as well as laparoscopy. Finding the superior mesenteric artery (SMA), inferior pancreatoduodenal artery (IPDA), first jejunal artery (J1A) has become a great challenge in laparoscopic PD (LPD). Meanwhile, exposing the midde colic artery (MCA) might be a feasible approach to determine SMA, IPDA, and J1A. Our study aims to find the anatomical correlation between MCA and SMA, IPDA, J1A, especially in SMA-first approach LPD from the left. METHODS: Uncontrolled clinical trial with 33 patients undergoing LPD had preoperative contrast abdominal CT scan to analyze the anatomical relevance between MCA and SMA, J1A, IPDA. The operation was performed starting with exposing MCA in advance to find SMA, J1A and IPDA. The data was analyzed by SPSS 25.0. RESULTS: 90.9% of MCA started at 12-3 o'clock from SMA, the mean distance from the SMA root to the MCA and J1A was 56.4 mm and 37.4 mm, respectively. The distance between SMA and J1A was 19 mm. 72.7% J1A started at 9-12 o'clock, 69.7% J1A and IPDA had a common trunk. 78.8% IPDA started at 3-6 o'clock. 100% of the cases had J1A controlled intraoperatively, 81.8% for IPDA when approached from the left, 3% had MCA injury. The mean time to approach from the left was 98 min, median blood loss was 100 ml. CONCLUSION: Exposing MCA first helps determine SMA, J1A and IPDA safely, efficiently and faciliates SMA-first approach LPD from the left and complete dissection of the mesopancreas and lymph nodes.


Assuntos
Estudos de Viabilidade , Laparoscopia , Artéria Mesentérica Superior , Neoplasias Pancreáticas , Pancreaticoduodenectomia , Humanos , Pancreaticoduodenectomia/métodos , Artéria Mesentérica Superior/cirurgia , Artéria Mesentérica Superior/diagnóstico por imagem , Feminino , Masculino , Laparoscopia/métodos , Estudos Prospectivos , Pessoa de Meia-Idade , Neoplasias Pancreáticas/cirurgia , Neoplasias Pancreáticas/patologia , Idoso , Adulto , Prognóstico , Seguimentos , Pontos de Referência Anatômicos , Colo/cirurgia , Colo/irrigação sanguínea , Colo/diagnóstico por imagem , Tomografia Computadorizada por Raios X/métodos
14.
ChemSusChem ; 17(17): e202301866, 2024 Sep 09.
Artigo em Inglês | MEDLINE | ID: mdl-38568784

RESUMO

Lithium-ion batteries are commonly used for energy storage due to their long lifespan and high energy density, but the use of unsafe electrolytes poses significant health and safety concerns. An alternative source is necessary to maintain electrochemical efficacy. This research demonstrates new safe glyme-based electrolytes for silica/carbon (SiOx/C) nanocomposite derived from Australian rice husk (RH). The quality of SiOx/C was preserved by using deep eutectic solvent-based pre-treatment and single-step carbonization, which was confirmed through the X-ray analysis of the crystalline phase of silica. The electrochemical assessment of SiOx/C anode using various glyme-based electrolytes for LIBs was carried out. Among them, the resultant half cells based on diglyme electrolyte is superior to others with the first discharge capacity at 1274 mAh/g and a reversible discharge capacity of 759.7 mAh/g. Ex-situ SEM and Time-of-Flight Secondary Ion Mass Spectrometry (ToF- SIMS) analysis of the electrode indicated that diglyme not only improves the capacity but also sustains the electrode architecture for longer cycle life with more LiF-based components and also showed the absence of HF components. Importantly, the addition of fluoroethylene carbonate (FEC) additive enhanced the cycling stability. These results provide a new perspective on developing advanced SiOx/C anode using glyme electrolytes for Li-ion batteries.

15.
Nat Rev Urol ; 21(10): 615-637, 2024 10.
Artigo em Inglês | MEDLINE | ID: mdl-38627553

RESUMO

Ferroptosis is a distinct form of regulated cell death that is predominantly driven by the build-up of intracellular iron and lipid peroxides. Ferroptosis suppression is widely accepted to contribute to the pathogenesis of several tumours including prostate cancer. Results from some studies reported that prostate cancer cells can be highly susceptible to ferroptosis inducers, providing potential for an interesting new avenue of therapeutic intervention for advanced prostate cancer. In this Perspective, we describe novel molecular underpinnings and metabolic drivers of ferroptosis, analyse the functions and mechanisms of ferroptosis in tumours, and highlight prostate cancer-specific susceptibilities to ferroptosis by connecting ferroptosis pathways to the distinctive metabolic reprogramming of prostate cancer cells. Leveraging these novel mechanistic insights could provide innovative therapeutic opportunities in which ferroptosis induction augments the efficacy of currently available prostate cancer treatment regimens, pending the elimination of major bottlenecks for the clinical translation of these treatment combinations, such as the development of clinical-grade inhibitors of the anti-ferroptotic enzymes as well as non-invasive biomarkers of ferroptosis. These biomarkers could be exploited for diagnostic imaging and treatment decision-making.


Assuntos
Ferroptose , Neoplasias da Próstata , Ferroptose/fisiologia , Humanos , Masculino , Neoplasias da Próstata/patologia , Neoplasias da Próstata/metabolismo , Neoplasias da Próstata/terapia , Biomarcadores Tumorais/metabolismo
16.
Int J Infect Dis ; 144: 107047, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38609035

RESUMO

AIM/OBJECTIVE: This study investigates placental antibody transfer following recombinant pertussis vaccination in pregnancy in a real-world setting. METHODS: This postmarketing observational study recruited pregnant women vaccinated with monovalent recombinant acellular pertussis (aP) vaccine (aPgen; n = 199) or combined to tetanus-diphtheria (TdaPgen; n = 200), or Td-vaccine only (n = 54). Pregnancy, delivery, and neonatal outcomes were assessed. Cord blood was collected postdelivery and pertussis toxin (PT)-IgG, filamentous hemagglutinin (FHA)-IgG, and PT-neutralizing antibodies (PT-Nab) were assessed. RESULTS: No adverse pregnancy, delivery, or neonatal outcomes attributed to aPgen, TdaPgen, or Td vaccination were reported. High anti-PT antibody levels were detected in cord samples from women vaccinated with aPgen (geometric mean concentration [GMC] PT-IgG 206.1 IU/ml, 95% confidence intervals [CI]: 164.3-258.6; geometric mean titer [GMT] PT-Nab 105.3 IU/ml, 95% CI: 81.7-135.8) or TdaPgen (GMC PT-IgG 153.1 IU/ml, 95% CI: 129.1-181.5; GMT PT-Nab 81.5 IU/ml, 95% CI: 66.4-100.0). In the Td-only group, anti-PT antibodies were low (GMC PT-IgG 6.5 IU/ml, 95% CI: 4.9-8.8; GMT PT-Nab 3.8 IU/ml, 95% CI: 2.8-5.1). The same was found for FHA-IgG. Recombinant pertussis vaccination at <27 or 27-36 weeks gestation induced similar cord pertussis antibody levels. CONCLUSION: This first real-world study confirms that recombinant pertussis vaccination in the second or third trimester of pregnancy results in high levels of passive immunity in infants. Thai Clinical Trial Registry: TCTR20200528006.


Assuntos
Anticorpos Antibacterianos , Imunidade Materno-Adquirida , Coqueluche , Humanos , Feminino , Gravidez , Adulto , Anticorpos Antibacterianos/sangue , Anticorpos Antibacterianos/imunologia , Coqueluche/prevenção & controle , Coqueluche/imunologia , Imunoglobulina G/sangue , Imunoglobulina G/imunologia , Sangue Fetal/imunologia , Vacinas Sintéticas/imunologia , Vacinas Sintéticas/administração & dosagem , Vacina contra Coqueluche/imunologia , Vacina contra Coqueluche/administração & dosagem , Adulto Jovem , Troca Materno-Fetal/imunologia , Vacinas contra Difteria, Tétano e Coqueluche Acelular/imunologia , Vacinas contra Difteria, Tétano e Coqueluche Acelular/administração & dosagem , Recém-Nascido , Toxina Pertussis/imunologia , Anticorpos Neutralizantes/sangue , Anticorpos Neutralizantes/imunologia , Bordetella pertussis/imunologia , Vacinação
17.
Pediatr Infect Dis J ; 43(8): 715-719, 2024 Aug 01.
Artigo em Inglês | MEDLINE | ID: mdl-38567978

RESUMO

BACKGROUND: We aimed to investigate the clinical features, antimicrobial susceptibility and pvl gene expression in Staphylococcus aureus causing acute hematogenous bone and joint infections (BJIs) in children in Vietnam. METHODS: In this prospective study, the demographics, microbiology and clinical outcomes of pediatric patients with acute hematogenous BJIs were collected from September 2022 to September 2023. Antimicrobial susceptibility profiles were determined using VITEK2 Compact system. The pvl gene encoding the Panton-Valentine leukocidin (PVL) toxin was detected by using polymerase chain reaction. Mann-Whitney, χ 2 and Fisher test were used for statistical analysis. RESULTS: In total, 78 patients (46 boys) with S. aureus acute hematogenous BJIs were recruited at the National Children's Hospital, Hanoi, Vietnam. Of all S. aureus isolates, 84.6% were methicillin-resistant S. aureus . All S. aureus isolates were susceptible to vancomycin, ciprofloxacin and levofloxacin; 97% of methicillin-resistant S. aureus isolates was resistant to clindamycin (minimum inhibitory concentration ≥8 µg/mL). The pvl gene was detected in 83.3% of isolates, including 57 methicillin-resistant S. aureus isolates. Patients in the pvl -positive group had significantly higher C-reactive protein levels than those in the pvl -negative group ( P = 0.04). In addition, all 8 children with septic shock were infected with pvl -positive S. aureus . CONCLUSIONS: PVL is a prevalent virulence factor of S. aureus in Vietnam. Furthermore, high inflammatory parameters (C-reactive protein) may be present at the time of diagnosis in PVL positivity-related acute hematogenous BJIs. Further research is necessary to enhance our understanding of the varying correlations between virulence factors and outcomes of S. aureus BJIs.


Assuntos
Antibacterianos , Toxinas Bacterianas , Exotoxinas , Hospitais Pediátricos , Leucocidinas , Testes de Sensibilidade Microbiana , Infecções Estafilocócicas , Staphylococcus aureus , Centros de Atenção Terciária , Humanos , Leucocidinas/genética , Exotoxinas/genética , Vietnã/epidemiologia , Masculino , Feminino , Toxinas Bacterianas/genética , Infecções Estafilocócicas/microbiologia , Infecções Estafilocócicas/epidemiologia , Pré-Escolar , Staphylococcus aureus/genética , Staphylococcus aureus/efeitos dos fármacos , Estudos Prospectivos , Criança , Centros de Atenção Terciária/estatística & dados numéricos , Prevalência , Lactente , Antibacterianos/farmacologia , Artrite Infecciosa/microbiologia , Artrite Infecciosa/epidemiologia , Adolescente , Osteomielite/microbiologia , Osteomielite/epidemiologia
18.
Int J Ophthalmol ; 17(4): 653-658, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38638268

RESUMO

AIM: To determine the dry eye (DE) rate and its relationship with disease stage in patients with primary hypertension. METHODS: A cross-sectional study included 432 patients with primary hypertension (with an equal number of patients in each group: 144 in stage I, II, and III hypertension) and 144 healthy subjects as a control group. The Ocular Surface Disease Index (OSDI) and Schirmer I test without anesthetics were conducted on all 576 subjects. Subjects with OSDI scores <13 and Schirmer I values equal to or under 10 mm were diagnosed with DE. RESULTS: The ratio of DE in hypertension patients was higher than in the control group (41.7% versus 18.8%; P<0.001). The proportion of patients with DE increased gradually according to the hypertension stage: 27.1% in stage I, 40.3% in stage II, and 57.6% in stage III, P<0.001. Age, duration of hypertension, plasma urea, creatinine, and high-sensitivity C-reactive protein (CRP-hs) levels in hypertension patients with DE were higher than those without DE, P<0.001. Advanced age, a long duration of hypertension, diabetes mellitus, elevated plasma creatinine, and CRP-hs levels were independent factors associated with DE in primary hypertension patients, P<0.001. CONCLUSION: DE is a common disorder associated with advanced age, a long duration of hypertension, diabetes mellitus, elevated plasma CRP-hs, and creatinine levels in patients with primary hypertension.

19.
Heliyon ; 10(7): e28118, 2024 Apr 15.
Artigo em Inglês | MEDLINE | ID: mdl-38596094

RESUMO

In this study, a series of secondary metabolites from Ganoderma sp. were screened against Staphylococcus aureus protein targets, including as phosphotransacetylase, clumping factor A, and dihydrofolate reductase, using molecular docking simulations. The chemicals that showed the strongest binding energy with the targeted proteins were ganodermanontriol, lucidumol B, ganoderic acid J, ergosterol, ergosterol peroxide, 7-oxoganoderic acid Z, ganoderic acid AM1, ganosinoside A, ganoderic acid D, and 24R-ergosta-7,2E-diene-3ß,5α,6ß-triol. Interestingly, ganosinoside A showed the greatest affinity for the protein clumping factor A, a result validated by molecular dynamic simulation. Additionally, three natural Ganoderma sp. Strains as Ganoderma lingzhi VNKKK1903, Ganoderma lingzhi VNKK1905A2, and Amauroderma subresinosum VNKKK1904 were collected from Kon Ka Kinh National Park in central land of Vietnam and evaluated for their antibacterial activity against Staphylococcus aureus using an agar well diffusion technique. These results suggest that the fungal extracts and secondary metabolites may serve as valuable sources of antibiotics against Staphylococcus aureus. These findings provided an important scientific groundwork for further exploration of the antibacterial mechanisms of compounds derived from Ganoderma sp. in future research.

20.
Microb Drug Resist ; 30(5): 203-209, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38512170

RESUMO

Klebsiella pneumoniae stands out as a major opportunistic pathogen responsible for both hospital- and community-acquired bacterial infections. This study comprehensively assesses the antibiotic resistance, amikacin persistent patterns, and biofilm-forming ability of 247 isolates of K. pneumoniae obtained from an intensive care unit of a tertiary hospital in Vietnam. Microdilution assays, conducted on a 96-well plate, determined the minimum inhibitory concentrations (MICs) of amikacin. Susceptibility data for other antibiotics were gathered from the antibiogram profile. Stationary-phase bacteria were exposed to 50 × MIC, and viable bacteria counts were measured to determine amikacin persistence. Biofilm forming capacity on 96-well polystyrene surfaces was assessed by biomass and viable bacteria. The prevalence of resistance was notably high across most antibiotics, with 64.8% classified as carbapenem-resistant K. pneumoniae and 81.4% as multidrug resistant. Amikacin, however, exhibited a relatively low rate of resistance. Of the isolates, 58.2% demonstrated a moderate to strong biofilm formation capacity, and these were found to be poorly responsive to amikacin. K. pneumoniae reveals a significant inclination for amikacin persistence, with ∼45% of isolates displaying an antibiotic antibiotic-survival ratio exceeding 10%. The study sheds light on challenges in treating of K. pneumoniae infection in Vietnam, encompassing a high prevalence of antibiotic resistance, a substantial ability to form biofilm, and a notable rate of antibiotic persistence.


Assuntos
Amicacina , Antibacterianos , Biofilmes , Farmacorresistência Bacteriana Múltipla , Infecções por Klebsiella , Klebsiella pneumoniae , Humanos , Amicacina/farmacologia , Antibacterianos/farmacologia , Biofilmes/efeitos dos fármacos , Infecções por Klebsiella/tratamento farmacológico , Infecções por Klebsiella/microbiologia , Klebsiella pneumoniae/efeitos dos fármacos , Testes de Sensibilidade Microbiana , Fenótipo , População do Sudeste Asiático , Centros de Atenção Terciária , Vietnã , Unidades de Terapia Intensiva
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA