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1.
Lancet Child Adolesc Health ; 8(3): 201-213, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-38281495

RESUMEN

BACKGROUND: The Child Health and Mortality Prevention Surveillance (CHAMPS) Network programme undertakes post-mortem minimally invasive tissue sampling (MITS), together with collection of ante-mortem clinical information, to investigate causes of childhood deaths across multiple countries. We aimed to evaluate the overall contribution of pneumonia in the causal pathway to death and the causative pathogens of fatal pneumonia in children aged 1-59 months enrolled in the CHAMPS Network. METHODS: In this observational study we analysed deaths occurring between Dec 16, 2016, and Dec 31, 2022, in the CHAMPS Network across six countries in sub-Saharan Africa (Ethiopia, Kenya, Mali, Mozambique, Sierra Leone, and South Africa) and one in South Asia (Bangladesh). A standardised approach of MITS was undertaken on decedents within 24-72 h of death. Diagnostic tests included blood culture, multi-organism targeted nucleic acid amplifications tests (NAATs) of blood and lung tissue, and histopathology examination of various organ tissue samples. An interdisciplinary expert panel at each site reviewed case data to attribute the cause of death and pathogenesis thereof on the basis of WHO-recommended reporting standards. FINDINGS: Pneumonia was attributed in the causal pathway of death in 455 (40·6%) of 1120 decedents, with a median age at death of 9 (IQR 4-19) months. Causative pathogens were identified in 377 (82·9%) of 455 pneumonia deaths, and multiple pathogens were implicated in 218 (57·8%) of 377 deaths. 306 (67·3%) of 455 deaths occurred in the community or within 72 h of hospital admission (presumed to be community-acquired pneumonia), with the leading bacterial pathogens being Streptococcus pneumoniae (108 [35·3%]), Klebsiella pneumoniae (78 [25·5%]), and non-typeable Haemophilus influenzae (37 [12·1%]). 149 (32·7%) deaths occurred 72 h or more after hospital admission (presumed to be hospital-acquired pneumonia), with the most common pathogens being K pneumoniae (64 [43·0%]), Acinetobacter baumannii (19 [12·8%]), S pneumoniae (15 [10·1%]), and Pseudomonas aeruginosa (15 [10·1%]). Overall, viruses were implicated in 145 (31·9%) of 455 pneumonia-related deaths, including 54 (11·9%) of 455 attributed to cytomegalovirus and 29 (6·4%) of 455 attributed to respiratory syncytial virus. INTERPRETATION: Pneumonia contributed to 40·6% of all childhood deaths in this analysis. The use of post-mortem MITS enabled biological ascertainment of the cause of death in the majority (82·9%) of childhood deaths attributed to pneumonia, with more than one pathogen being commonly implicated in the same case. The prominent role of K pneumoniae, non-typable H influenzae, and S pneumoniae highlight the need to review empirical management guidelines for management of very severe pneumonia in low-income and middle-income settings, and the need for research into new or improved vaccines against these pathogens. FUNDING: Bill & Melinda Gates Foundation.


Asunto(s)
Neumonía , Niño , Humanos , Lactante , Streptococcus pneumoniae , Mortalidad del Niño , Sudáfrica/epidemiología , Sur de Asia
2.
Clin Pathol ; 15: 2632010X221114807, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35898700

RESUMEN

Background: Abnormalities in hematology and comorbidities might have a role in chronic kidney disease (CKD) patients. However, the exact relationships between hematological parameters and the severity of CKD are not well understood. Also, the underlying mechanisms remain under investigation. The present study aimed to evaluate the association of different blood parameters and comorbidities among hospitalized CKD patients in Bangladesh. Methods: The present study enrolled admitted CKD patients at Evercare Hospital Ltd, Dhaka, Bangladesh, from January 1, 2021, to August 1, 2021. For this study, the demographic and clinical information of the patients were collected. Then some routine blood tests for the hematological profile of CKD patients were performed. Finally, several statistical methods were performed and data interpretations were done to evaluate the role of hematological changes on CKD patients. Results: Among 300 patients, early-stage CKD patients (ESCKDP) and advanced-stage CKD patients (ASCKDP) were 153 and 147, respectively. The decreased levels of hemoglobin (Hb) and red blood cell (RBC) in ASCKDP were observed. However, the present study found increased levels of corpuscular Hb in ASCKDP than ESCKDP. Also, the present study noticed correlations between these changes and the severity of CKD. Also, we observed a significant difference in age and body mass index between ESCKDP and ASCKDP. Conclusions: Based on our results, lower Hb and RBC levels may use in assessing the severity and the treatment decisions of CKD patients in the hospital setting. Therefore, our findings may assist with developing a treatment protocol for hospitalized CKD patients.

3.
Environ Sci Pollut Res Int ; 29(24): 35557-35582, 2022 May.
Artículo en Inglés | MEDLINE | ID: mdl-35243577

RESUMEN

The daily utilization of a large amount of raw materials is causing a rapid depletion of natural resources. The growth of the human population is accompanied by higher activities in the agricultural and manufacturing sectors that resulted in a larger volume of waste materials being disposed of in landfills each year. Researchers are seeking ways to reduce the adverse impact of waste materials on the environment. One method for managing waste materials is using them as a substitute for natural materials, for example, as aggregate replacement in the construction of road pavements. This paper reviews the previous studies that explored the use of waste materials as aggregate replacement in stone matrix asphalt (SMA) mix and the performance of asphalt pavements constructed using these materials. A systematic literature search of four databases revealed that waste materials could be used as an alternative to the natural aggregates. Future studies on the SMA mixes should investigate using other waste materials that could improve mix design and enhance pavement performance. There is a need to establish a standard code of practice and train material technologists to use different types of waste in SMA pavement construction. In summary, it is essential to perform a life cycle cost analysis (LCCA) and life cycle assessment (LCA) to quantify the economic and environmental impacts of the different waste materials used as aggregates in SMA.


Asunto(s)
Materiales de Construcción , Hidrocarburos , Polvo , Humanos , Residuos
4.
Sci Rep ; 11(1): 23676, 2021 12 08.
Artículo en Inglés | MEDLINE | ID: mdl-34880291

RESUMEN

Although advancing the therapeutic alternatives for treating deadly cancers has gained much attention globally, still the primary methods such as chemotherapy have significant downsides and low specificity. Most recently, Anticancer peptides (ACPs) have emerged as a potential alternative to therapeutic alternatives with much fewer negative side-effects. However, the identification of ACPs through wet-lab experiments is expensive and time-consuming. Hence, computational methods have emerged as viable alternatives. During the past few years, several computational ACP identification techniques using hand-engineered features have been proposed to solve this problem. In this study, we propose a new multi headed deep convolutional neural network model called ACP-MHCNN, for extracting and combining discriminative features from different information sources in an interactive way. Our model extracts sequence, physicochemical, and evolutionary based features for ACP identification using different numerical peptide representations while restraining parameter overhead. It is evident through rigorous experiments using cross-validation and independent-dataset that ACP-MHCNN outperforms other models for anticancer peptide identification by a substantial margin on our employed benchmarks. ACP-MHCNN outperforms state-of-the-art model by 6.3%, 8.6%, 3.7%, 4.0%, and 0.20 in terms of accuracy, sensitivity, specificity, precision, and MCC respectively. ACP-MHCNN and its relevant codes and datasets are publicly available at: https://github.com/mrzResearchArena/Anticancer-Peptides-CNN . ACP-MHCNN is also publicly available as an online predictor at: https://anticancer.pythonanywhere.com/ .


Asunto(s)
Antineoplásicos/química , Antineoplásicos/farmacología , Biología Computacional/métodos , Aprendizaje Profundo , Descubrimiento de Drogas/métodos , Redes Neurales de la Computación , Péptidos/química , Péptidos/farmacología , Algoritmos , Secuencia de Aminoácidos , Fenómenos Químicos , Humanos , Curva ROC , Reproducibilidad de los Resultados
5.
PLoS One ; 16(7): e0255379, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34314447

RESUMEN

BACKGROUND: The hematological abnormalities are assumed to be involved in the disease progression of COVID-19. However, the actual associations between specific blood parameters and COVID-19 are not well understood. Here we aimed to assess the correlations between hematological parameters and the severity of COVID-19. METHODS: We included COVID-19 patients who were admitted to Evercare Hospital Ltd, Dhaka, Bangladesh, between November 10, 2020, to April 12, 2021, with a confirmed case of RT-PCR test. We recorded demographic information, clinical data, and routine hematological examination results of all COVID-19 patients. We performed statistical analyses and interpretation of data to compare severe COVID-19 patients (SCP) and non-severe COVID-19 patients (NSCP). RESULTS: The age and BMI of the admitted COVID-19 patients were 48.79±8.53 years and 25.82±3.75 kg/m2. This study included a total of 306 hospitalized COVID-19 patients. Among them, NSCP and SCP were 198 and 108, respectively. And we recorded 12 deaths from SCP. We observed the alterations of several hematological parameters between SCP and NSCP. Among them, we noticed the increased levels of C-reactive protein (CRP), d-dimer, and ferritin showed good indicative value to evaluate the severity of COVID-19. Also, there were positive correlations among these parameters. Moreover, we found correlations between the outcomes of COVID-19 patients with patient's demographics and comorbid diseases. CONCLUSION: Based on our results, CRP, d-dimer, and ferritin levels at admission to hospitals represent simple assessment factors for COVID-19 severity and the treatment decisions at the hospital setup. These blood parameters could serve as indicators for the prognosis and severity of COVID-19. Therefore, our study findings might help to develop a treatment protocol for COVID-19 patients at the hospital setup.


Asunto(s)
COVID-19/complicaciones , COVID-19/epidemiología , Comorbilidad , Enfermedades Hematológicas/complicaciones , Hospitalización/estadística & datos numéricos , Adulto , Bangladesh/epidemiología , COVID-19/terapia , Femenino , Humanos , Masculino , Persona de Mediana Edad
6.
Bioinformatics ; 36(19): 4869-4875, 2020 12 08.
Artículo en Inglés | MEDLINE | ID: mdl-32614400

RESUMEN

MOTIVATION: Promoter is a short region of DNA which is responsible for initiating transcription of specific genes. Development of computational tools for automatic identification of promoters is in high demand. According to the difference of functions, promoters can be of different types. Promoters may have both intra- and interclass variation and similarity in terms of consensus sequences. Accurate classification of various types of sigma promoters still remains a challenge. RESULTS: We present iPromoter-BnCNN for identification and accurate classification of six types of promoters-σ24,σ28,σ32,σ38,σ54,σ70. It is a CNN-based classifier which combines local features related to monomer nucleotide sequence, trimer nucleotide sequence, dimer structural properties and trimer structural properties through the use of parallel branching. We conducted experiments on a benchmark dataset and compared with six state-of-the-art tools to show our supremacy on 5-fold cross-validation. Moreover, we tested our classifier on an independent test dataset. AVAILABILITY AND IMPLEMENTATION: Our proposed tool iPromoter-BnCNN web server is freely available at http://103.109.52.8/iPromoter-BnCNN. The runnable source code can be found https://colab.research.google.com/drive/1yWWh7BXhsm8U4PODgPqlQRy23QGjF2DZ. SUPPLEMENTARY INFORMATION: Supplementary data are available at Bioinformatics online.


Asunto(s)
Factor sigma , Programas Informáticos , ADN , Regiones Promotoras Genéticas , Análisis de Secuencia de ADN
7.
Preprint en Inglés | medRxiv | ID: ppmedrxiv-20133611

RESUMEN

ObjectivesTo determine the level of Knowledge, Attitude, and Practice (KAP) related to COVID-19 preventive health habits and perception of Fear towards COVID-19 in subjects living in Bangladesh. DesignProspective, cross-sectional survey of (n= 2157) male and female subjects, 13-90 years of age, living in Bangladesh. MethodsEthical Approval and Trial registration were obtained prior to the commencement of the study. Subjects who volunteered to participate and signed the informed consent were enrolled in the study and completed the "Fear of COVID-19 Scale" (FCS). ResultsTwenty-eight percent (28.69%) of subjects reported one or more COVID-19 symptoms and 21.4% of subjects reported one or more comorbidities. Knowledge scores were slightly higher in males (8.75{+/-} 1.58) than females (8.66{+/-} 1.70). Knowledge was significantly correlated with age (p<.005), an education level (p<.001), Attitude (p<.001), and urban location (p=<.001). Knowledge scores showed an inverse correlation with Fear scores (p=<.001). Eighty-three percent (83.7%) of subjects with COVID-19 symptoms reported wearing a mask in public and 75.4% of subjects reported staying away from crowded places. Subjects with one or more symptoms reported higher Fear compared to subjects without (18.73{+/-} 4.6; 18.45{+/-} 5.1). ConclusionsOverall, Bangladeshis reported a high prevalence of self-isolation, positive preventive health behaviors related to COVID-19, and moderate to high fear levels. Higher Knowledge and Practice were found in males, higher education levels, older age, and urban location. "Fear" of COVID-19 was more prevalent in female and elderly subjects. Positive "Attitude" was reported for the majority of subjects, reflecting the belief that COVID-19 was controllable and containable. Ethical approvalEthical permission obtained from the Institutional review board (BPA-IPRR/IRB/29/03/2020/021) of Institute of Physiotherapy, Rehabilitation, and Research (IPRR), the academic organization of the Bangladesh Physiotherapy Association. WHO Trial registryThe trial registration obtained prospectively from a primary trial registry of WHO (CTRI/2020/04/024413). Data AvailabilityThe data are available regarding this study and can be viewed upon request

8.
Pediatr Surg Int ; 29(3): 257-62, 2013 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-23247833

RESUMEN

OBJECTIVE: Hemangiomas are the most common benign soft tissue tumors occurring in 5-10 % of children at around the age of 1 year and of them 10 % are associated with significant morbidity and entail medical attention. In this study, efficacy and adverse effects of the drug propranolol were observed on hemangiomas. METHODS: Oral propranolol was given to 36 children at a dose of 3 mg/kg/day in three divided doses. Blood pressure and heart rate were recorded during the first 3 h of treatment. Treatment was continued at home and the children were re-evaluated at monthly interval. Photographs were taken in pre- and post-treatment phages and changes of hemangiomas were measured with visual analog scale. RESULTS: Immediate effects on color and growth were noted in all cases that were especially dramatic in cases of extensive lesions. Clinical evidence of regression was seen within 30 days in all cases and completely regressed within 7 months. Mean duration of treatment was 4.1 months. CONCLUSION: Propranolol had a rapid stabilizing effect leading to early regression of hemangiomas when administered orally at a dose of 3 mg/kg/day with good quality safety profile.


Asunto(s)
Antagonistas Adrenérgicos beta/administración & dosificación , Hemangioma/tratamiento farmacológico , Propranolol/administración & dosificación , Neoplasias de los Tejidos Blandos/tratamiento farmacológico , Administración Oral , Niño , Preescolar , Relación Dosis-Respuesta a Droga , Esquema de Medicación , Neoplasias Faciales/tratamiento farmacológico , Femenino , Humanos , Lactante , Masculino
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