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1.
Lab Chip ; 24(11): 3015-3026, 2024 May 28.
Artículo en Inglés | MEDLINE | ID: mdl-38745471

RESUMEN

The paper demonstrates an adaptation of a 3D printer (Prusa Mini+) with novel modules to develop a droplet generation system that generates combinatorial droplets from a standard 96 well plate. The calibration methodology developed would allow any fused deposition modeling (FDM) printer to generate monodisperse droplets (coefficient of variance (CV%) < 5%) from well plates or vials of any geometry. The system maintains precision across various volumes while maintaining a C.V. range of 0.81% to 3.61%, with an increased precision for larger volumes. The cost of the system developed is 70% less than commercially available droplet generation packages. Successful droplet library storage is accomplished via 3D printed cartridge connectors. The implemented system has been calibrated for Tygon® and PTFE at different velocities and volumetric configurations.

2.
Environ Sci Technol ; 58(23): 9945-9953, 2024 Jun 11.
Artículo en Inglés | MEDLINE | ID: mdl-38806168

RESUMEN

Background: understanding the effects of coexposure to compound extreme events, such as air pollution and extreme heat, is important for reducing current and future health burdens. This study investigated the independent and synergistic effects of exposure to air pollution from vegetation fires and extreme heat on all-cause mortality in Upper Northern Thailand. Methods: we used a time-stratified case-crossover study design with a conditional quasi-Poisson model to examine the association between mortality and coexposure to air pollution due to vegetation fire events (fire-PM2.5) and extreme heat. Extreme heat days were defined using the 90th and 99th percentile thresholds for daily maximum temperature. Results: we observed a significant positive excess risk of mortality due to independent exposure to fire-PM2.5 and extreme heat, but not an interactive effect. All-cause mortality risk increased by 0.9% (95% confidence interval (CI): 0.1, 1.8) for each 10 µg/m3 increase in fire-PM2.5 on the same day and by 12.8% (95% CI: 10.5, 15.1) on extreme heat days (90th percentile) relative to nonextreme heat days. Conclusion: this study showed that exposure to PM2.5 from vegetation fires and extreme heat independently increased all-cause mortality risk in UNT. However, there was no evidence of a synergistic effect of these events.


Asunto(s)
Contaminación del Aire , Incendios , Tailandia , Humanos , Calor Extremo/efectos adversos , Contaminantes Atmosféricos , Material Particulado
3.
PLoS One ; 19(5): e0294917, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38768121

RESUMEN

BACKGROUND: The prevalence of diabetes in West Africa is increasing, posing a major public health threat. An estimated 24 million Africans have diabetes, with rates in West Africa around 2-6% and projected to rise 129% by 2045 according to the WHO. Over 90% of cases are Type 2 diabetes (IDF, World Bank). As diabetes is ambulatory care sensitive, good primary care is crucial to reduce complications and mortality. However, research on factors influencing diabetes primary care access, utilisation and quality in West Africa remains limited despite growing disease burden. While research has emphasised diabetes prevalence and risk factors in West Africa, there remains limited evidence on contextual influences on primary care. This scoping review aims to address these evidence gaps. METHODS AND ANALYSIS: Using the established methodology by Arksey and O'Malley, this scoping review will undergo six stages. The review will adopt the Preferred Reporting Items for Systematic Reviews and Meta-Analysis Extension for Scoping Review (PRISMA-ScR) guidelines to ensure methodological rigour. We will search four electronic databases and search through grey literature sources to thoroughly explore the topic. The identified articles will undergo thorough screening. We will collect data using a standardised data extraction form that covers study characteristics, population demographics, and study methods. The study will identify key themes and sub-themes related to primary healthcare access, utilisation, and quality. We will then analyse and summarise the data using a narrative synthesis approach. RESULTS: The findings and conclusive report will be finished and sent to a peer-reviewed publication within six months. CONCLUSION: This review protocol aims to systematically examine and assess the factors that impact the access, utilisation, and standard of primary healthcare services for diabetes in West Africa.


Asunto(s)
Accesibilidad a los Servicios de Salud , Atención Primaria de Salud , Humanos , África Occidental/epidemiología , Accesibilidad a los Servicios de Salud/estadística & datos numéricos , Calidad de la Atención de Salud , Diabetes Mellitus Tipo 2/terapia , Diabetes Mellitus Tipo 2/epidemiología , Diabetes Mellitus/terapia , Diabetes Mellitus/epidemiología
4.
Ann Card Anaesth ; 27(1): 76-78, 2024 Jan 01.
Artículo en Inglés | MEDLINE | ID: mdl-38722128

RESUMEN

ABSTRACT: Aneurysmal dilation of coronary arteries is a rare condition detected during coronary angiography. Due to their poorly elucidated underlying mechanisms, their variable presentations, and the lack of large-scale outcome data on their various treatment modalities, coronary artery aneurysms, and coronary ectasia pose a challenge to the managing clinician. This case presentation provides insight into the challenges regarding the management of the coronary artery aneurysm during the perioperative period.


Asunto(s)
Aneurisma Coronario , Angiografía Coronaria , Insuficiencia de la Válvula Tricúspide , Humanos , Aneurisma Coronario/diagnóstico por imagen , Aneurisma Coronario/complicaciones , Aneurisma Coronario/cirugía , Insuficiencia de la Válvula Tricúspide/complicaciones , Insuficiencia de la Válvula Tricúspide/diagnóstico por imagen , Insuficiencia de la Válvula Tricúspide/etiología , Insuficiencia de la Válvula Tricúspide/cirugía , Masculino , Ecocardiografía Transesofágica , Persona de Mediana Edad , Femenino
5.
BMJ Open ; 14(4): e081881, 2024 Apr 23.
Artículo en Inglés | MEDLINE | ID: mdl-38658004

RESUMEN

INTRODUCTION: Telomeres are a measure of cellular ageing with potential links to diseases such as cardiovascular diseases and cancer. Studies have shown that some infections may be associated with telomere shortening, but whether an association exists across all types and severities of infections and in which populations is unclear. Therefore we aim to collate available evidence to enable comparison and to inform future research in this field. METHODS AND ANALYSIS: We will search for studies involving telomere length and infection in various databases including MEDLINE (Ovid interface), EMBASE (Ovid interface), Web of Science, Scopus, Global Health and the Cochrane Library. For grey literature, the British Library of electronic theses databases (ETHOS) will be explored. We will not limit by study type, geographical location, infection type or method of outcome measurement. Two researchers will independently carry out study selection, data extraction and risk of bias assessment using the ROB2 and ROBINS-E tools. The overall quality of the studies will be determined using the Grading of Recommendations Assessment, Development and Evaluation criteria. We will also evaluate study heterogeneity with respect to study design, exposure and outcome measurement and if there is sufficient homogeneity, a meta-analysis will be conducted. Otherwise, we will provide a narrative synthesis with results grouped by exposure category and study design. ETHICS AND DISSEMINATION: The present study does not require ethical approval. Results will be disseminated via publishing in a peer-reviewed journal and conference presentations. PROSPERO REGISTRATION NUMBER: CRD42023444854.


Asunto(s)
Proyectos de Investigación , Revisiones Sistemáticas como Asunto , Humanos , Acortamiento del Telómero , Telómero/genética , Infecciones
6.
Front Chem ; 12: 1374739, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38601886

RESUMEN

The iron-based biomass-supported catalyst has been used for Fischer-Tropsch synthesis (FTS). However, there is no study regarding the life cycle assessment (LCA) of biomass-supported iron catalysts published in the literature. This study discusses a biomass-supported iron catalyst's LCA for the conversion of syngas into a liquid fuel product. The waste biomass is one of the source of activated carbon (AC), and it has been used as a support for the catalyst. The FTS reactions are carried out in the fixed-bed reactor at low or high temperatures. The use of promoters in the preparation of catalysts usually enhances C5+ production. In this study, the collection of precise data from on-site laboratory conditions is of utmost importance to ensure the credibility and validity of the study's outcomes. The environmental impact assessment modeling was carried out using the OpenLCA 1.10.3 software. The LCA results reveals that the synthesis process of iron-based biomass supported catalyst yields a total impact score in terms of global warming potential (GWP) of 1.235E + 01 kg CO2 equivalent. Within this process, the AC stage contributes 52% to the overall GWP, while the preparation stage for the catalyst precursor contributes 48%. The comprehensive evaluation of the iron-based biomass supported catalyst's impact score in terms of human toxicity reveals a total score of 1.98E-02 kg 1,4-dichlorobenzene (1,4-DB) equivalent.

7.
Front Mol Biosci ; 11: 1346242, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38567100

RESUMEN

Esophageal cancer (EC) remains a significant health challenge globally, with increasing incidence and high mortality rates. Despite advances in treatment, there remains a need for improved diagnostic methods and understanding of disease progression. This study addresses the significant challenges in the automatic classification of EC, particularly in distinguishing its primary subtypes: adenocarcinoma and squamous cell carcinoma, using histopathology images. Traditional histopathological diagnosis, while being the gold standard, is subject to subjectivity and human error and imposes a substantial burden on pathologists. This study proposes a binary class classification system for detecting EC subtypes in response to these challenges. The system leverages deep learning techniques and tissue-level labels for enhanced accuracy. We utilized 59 high-resolution histopathological images from The Cancer Genome Atlas (TCGA) Esophageal Carcinoma dataset (TCGA-ESCA). These images were preprocessed, segmented into patches, and analyzed using a pre-trained ResNet101 model for feature extraction. For classification, we employed five machine learning classifiers: Support Vector Classifier (SVC), Logistic Regression (LR), Decision Tree (DT), AdaBoost (AD), Random Forest (RF), and a Feed-Forward Neural Network (FFNN). The classifiers were evaluated based on their prediction accuracy on the test dataset, yielding results of 0.88 (SVC and LR), 0.64 (DT and AD), 0.82 (RF), and 0.94 (FFNN). Notably, the FFNN classifier achieved the highest Area Under the Curve (AUC) score of 0.92, indicating its superior performance, followed closely by SVC and LR, with a score of 0.87. This suggested approach holds promising potential as a decision-support tool for pathologists, particularly in regions with limited resources and expertise. The timely and precise detection of EC subtypes through this system can substantially enhance the likelihood of successful treatment, ultimately leading to reduced mortality rates in patients with this aggressive cancer.

8.
Artículo en Inglés | MEDLINE | ID: mdl-38561609

RESUMEN

BACKGROUND: Deregulated DNA damage response (DDR) network is implicated in cancer progression and therapy resistance. OBJECTIVE: The present study was designed to investigate whether nimbolide, an anticancer neem limonoid, targets key components of the DDR signalling pathway in cellular and animal models of oral squamous cell carcinoma (OSCC). METHODS: OSCC cells (SCC-4 and SCC-9), 7,12-dimethylbenz[a]anthracene (DMBA)-induced hamster buccal pouch (HBP) carcinoma model, chemoresistant OSCC patient-derived xenograft (PDX) model established in athymic nude mice, and tissue sections from patients with oral premalignant/malignant disease were used for the study. Key molecules that orchestrate the DDR, including the MRN complex, ATM, DNA-PKcs, H2AX, and p53, were analysed by qRT-PCR, immunoblotting, immunofluorescence, and immunohistochemistry. Cell proliferation and apoptosis indices were evaluated. RESULTS: Nimbolide significantly reduced 8-oxodG levels, expression of MRN, ATMS1891, and γ-H2AX, with an increase in p-p53S15 in OSCC cells as well as in the HBP model. Nimbolide potentiated the effect of KU-55933 in ATM inhibition. In the PDX model, nimbolide suppressed tumor formation, stimulated DDR and apoptosis, inhibited cell proliferation, and enhanced sensitivity to cisplatin. Analysis of p-ATM expression revealed a significant increase during the sequential progression of hamster and human OSCC. CONCLUSIONS: This study provides compelling evidence that nimbolide functions as a DDR inhibitor in cellular and hamster OSCC models and as a DDR activator in the PDX model primarily by targeting ATM. Small molecules like nimbolide that modulate DDR are of immense benefit in cancer therapy. The study has also unveiled p-ATM as a promising biomarker of tumour progression in human OSCCs.

9.
Cureus ; 16(2): e53578, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-38449967

RESUMEN

We present an interesting case of mediastinal small cell carcinoma (MSCC), an exceedingly rare entity, comorbid with idiopathic pulmonary fibrosis (IPF). A 66-year-old female was first seen in the pulmonology office for abnormal chest computed tomography (CT) findings of right apical bronchiectasis and subpleural fibrotic changes with focal pleural thickening along the fissures, along with a right lower lobe nodule. Pulmonary function testing (PFT) showed an obstructive pattern with modest bronchodilator response, although subsequent PFT showed a worsening restrictive pattern with a worsening DLCO. On a follow-up CT one year later, a soft tissue density with peripheral calcification was found in the anterior mediastinum, later found to be hypermetabolic on a PET scan. Radiographically, fibrosis worsened with the appearance of worsening diffuse bilateral coarse reticular interstitial changes with lower lobe predominance, honeycombing, and areas of ground-glass opacity. A biopsy of the mediastinal lesion showed a high-grade neuroendocrine tumor. Cam5.2, insulinoma-associated protein-1, synaptophysin, and thyroid transcription factor-1 immunostains were positive. She underwent four cycles of chemotherapy with cisplatin and etoposide with a total of 60 Gy of radiation. Mediastinal mass started to decrease in size. Her respiratory status, imaging, and PFTs continued to show evidence of IPF progression. Prednisone resulted in modest clinical and radiographic response. Steroid-sparing therapy with mycophenolate mofetil, although effective, had to be discontinued due to GI bleeding. Anti-fibrotic therapy was deferred due to evidence showing a lack of clinical improvement. We discuss the existing evidence available on IPF management and proceed to highlight the deficiencies in existing data available on the management of IPF and MSCC in these patients. Most of the cases of MSCC reported in the past have managed MSCC using guidance from treatment practices for small cell lung cancer. No reported cases discuss or describe the management of IPF and MSCC in the very rare cohort of patients our case represents.

10.
Artículo en Inglés | MEDLINE | ID: mdl-38493899

RESUMEN

PURPOSE: Glioblastoma (GBM) is a lethal brain tumor. Standard-of-care treatment comprising surgery, radiation, and chemotherapy results in median survival rates of 12 to 15 months. Molecular-targeted agents identified using conventional 2-dimensional (2D) in vitro models of GBM have failed to improve outcome in patients, rendering such models inadequate for therapeutic target identification. A previously developed 3D GBM in vitro model that recapitulates key GBM clinical features and responses to molecular therapies was investigated for utility for screening novel radiation-drug combinations using gold-standard clonogenic survival as readout. METHODS AND MATERIALS: Patient-derived GBM cell lines were optimized for inclusion in a 96-well plate 3D clonogenic screening platform, ClonoScreen3D. Radiation responses of GBM cells in this system were highly reproducible and comparable to those observed in low-throughout 3D assays. The screen methodology provided quantification of candidate drug single agent activity (half maximal effective concentration or EC50) and the interaction between drug and radiation (radiation interaction ratio). RESULTS: The poly(ADP-ribose) polymerase inhibitors talazoparib, rucaparib, and olaparib each showed a significant interaction with radiation by ClonoScreen3D and were subsequently confirmed as true radiosensitizers by full clonogenic assay. Screening a panel of DNA damage response inhibitors revealed the expected propensity of these compounds to interact significantly with radiation (13/15 compounds). A second screen assessed a panel of compounds targeting pathways identified by transcriptomic analysis and demonstrated single agent activity and a previously unreported interaction with radiation of dinaciclib and cytarabine (radiation interaction ratio 1.28 and 1.90, respectively). These compounds were validated as radiosensitizers in full clonogenic assays (sensitizer enhancement ratio 1.47 and 1.35, respectively). CONCLUSIONS: The ClonoScreen3D platform was demonstrated to be a robust method to screen for single agent and radiation-drug combination activity. Using gold-standard clonogenicity, this assay is a tool for identification of radiosensitizers. We anticipate this technology will accelerate identification of novel radiation-drug combinations with genuine translational value.

11.
Pacing Clin Electrophysiol ; 47(3): 448-454, 2024 03.
Artículo en Inglés | MEDLINE | ID: mdl-38291877

RESUMEN

BACKGROUND: Application of electrocautery to a J-wire is used to perform transseptal puncture (TSP), but with limited evidence supporting safety and efficacy. We conducted a prospective randomized controlled trial to evaluate the safety and efficacy of this technique. METHODS: Two hundred consecutive patients were randomized in a 1:1 fashion to either the ICE-guided electrified J-wire TSP group or a conventional Brockenbrough (BRK) needle TSP group. The TSP was performed with a 0.032″ guidewire under 20 W, "coag" mode and was compared to TSP using the BRK needle. The primary safety endpoints were complications related to TSP. The primary efficacy endpoints included the TSP success rate, the total TSP time, and the total procedure time. RESULTS: All patients complete the procedure safely. The electrified J-wire TSP group had a significantly shorter TSP time than BRK needle TSP group. The total procedure time, number of TSP attempts required to achieve successful LA access, width of the intra-atrial shunt at the end of ablation were similar between the two groups. The incidence of new cerebral infarction detected by MRI were similar between the two groups (3/32 patients in the J-wire TSP group and 2/26 patients in conventional BRK TSP group, p = .82). And no difference in the incidence of residual intra-atrial shunt (4.3% vs. 6%, p = .654) during the 3-month's follow up. CONCLUSION: Using an electrified J-wire for TSP under the guidance of ICE appears to be as safe as and more efficient than conventional BRK needle TSP, which may be especially useful in the era of non-fluoroscopy AF ablation.


Asunto(s)
Fibrilación Atrial , Ablación por Catéter , Humanos , Tabiques Cardíacos/diagnóstico por imagen , Tabiques Cardíacos/cirugía , Fibrilación Atrial/cirugía , Estudios Prospectivos , Punciones/métodos , Ablación por Catéter/métodos , Ecocardiografía , Resultado del Tratamiento
12.
Sci Rep ; 14(1): 449, 2024 01 03.
Artículo en Inglés | MEDLINE | ID: mdl-38172191

RESUMEN

The coronavirus (COVID-19) pandemic has not only had a severe impact on global health but also poses a threat to the environment. This research aims to explore an innovative approach to address the issue of increased waste generated by the pandemic. Specifically, the study investigates the utilization of discarded face masks in combination with recycled concrete aggregate (RCA) and Silica Fume (SFM) in civil construction projects. The disposable face masks were processed by removing the ear loops and nose strips, and then cutting them into small fibers measuring 20 mm in length, 5 mm in width, and 0.46 mm in thickness, resulting in an aspect ratio of 24. Various proportions of SFM and RCA were incorporated into the concrete mix, with a focus on evaluating the compressive strength, split tensile strength, and durability of the resulting material. The findings indicate that the addition of SFM led to improvements in both compressive and split tensile strength, while no significant impact on durability was observed.


Asunto(s)
Administración de Residuos , Administración de Residuos/métodos , Dióxido de Silicio , Máscaras , Materiales de Construcción , Residuos Industriales/análisis
13.
Int J Biol Macromol ; 257(Pt 1): 128446, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-38029899

RESUMEN

The current investigation aims to choose an alternate potential replacement for the nonbiodegradable synthetic fibers used in polymer composites. This goal motivated the thorough characterization of Rosa hybrida bark (RHB) fibers. The research explored fiber characterization such as morphological, mechanical, thermal, and physical properties. The suggested fiber features a percentage of cellulose, hemicellulose molecules, and lignin of 52.99 wt%, 18.49 wt%, and 17.34 wt%, respectively according to chemical composition studies, which improves its mechanical properties. It is suitable for lightweight applications due to its decreased density (1.194 gcm-3). The purpose of the Fourier transform infrared spectroscope was to observe and record how various chemical groups were distributed throughout the surface of the fiber. The presence of 1.41 nm-sized crystalline cellulose and further XRD analysis showed a crystallinity index of 75.48 %. Scanning electron microscope studies revealed that RHB fibers have a rough surface. According to a single fiber tensile test, for gauge length (GL) 40 mm, Young's modulus and tensile strength of RHB fibers were 6.57 GPa and 352.01 MPa, respectively, and for GL 50 mm, 9.02 GPa and 311 MPa, respectively. Furthermore, thermo-gravimetric examination revealed that the isolated fibers were thermally stable up to 290 °C and the kinetic activation energy was found to be 75.32 kJ/mol. The fibers taken from the Rosa hybrida flower plants' bark exhibit qualities similar to those of currently used natural fibers, making them a highly promising replacement for synthetic fibers in polymer matrix composites.


Asunto(s)
Rosa , Corteza de la Planta/química , Celulosa/química , Lignina/química , Polímeros/química
14.
Protein Pept Lett ; 30(11): 900-912, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37953619

RESUMEN

Alzheimer's disease, a neurodegenerative disease, is a progressive and irreversible disease that has become a global challenge due to its increasing prevalence and absence of available potential therapies. Protein misfolding and aggregation are known to be the root of several protein neurodegenerative diseases, including Alzheimer's disease. Protein aggregation is a phenomenon where misfolded proteins accumulate and clump together intra-or extracellularly. This accumulation of misfolded amyloid proteins leads to the formation of plaquesin the neuronal cells, also known as amyloid ß plaques. The synthesis of amyloid ß plaques and tau protein aggregation are the hallmarks of Alzheimer's disease. Potential therapeutics must be developed in conjunction with an understanding of the possible root cause involving complex mechanisms. The development of therapeutics that can inhibit protein misfolding and aggregation, involved in the pathogenesis of Alzheimer's disease, could be one of the potential solutions to the disease.


Asunto(s)
Enfermedad de Alzheimer , Enfermedades Neurodegenerativas , Humanos , Enfermedad de Alzheimer/metabolismo , Péptidos beta-Amiloides/metabolismo , Agregado de Proteínas , Proteínas tau/metabolismo
15.
Pacing Clin Electrophysiol ; 46(12): 1478-1483, 2023 12.
Artículo en Inglés | MEDLINE | ID: mdl-37943004

RESUMEN

BACKGROUND: Patients with non-valvular atrial fibrillation (NVAF) and previous stroke have a significantly higher risk of stroke recurrence. This study aimed to examine the safety and efficacy of the LAmbre left atrial appendage occlusion device in NVAF patients with a history of stroke. METHODS: We examined 103 consecutive NVAF patients in 11 Chinese medical centers who had a history of stroke or transient ischemic attacks (TIA) and underwent placement of the LAmbre device. Follow-up was conducted 1, 3, 6, and 12 months after the procedure. The primary endpoints were the incidence of new ischemic or hemorrhagic stroke, TIA, systemic embolism, or cardiac death. Secondary endpoints were serious perioperative or device-related complications and cerebral, gastrointestinal, or other bleeding events requiring transfusion of at least 2 units of packed red blood cells. RESULTS: Mean patient age was 67.63 ± 7.14 years; mean CHA2DS2-VASc score was 4.72 ± 1.18 and mean HAS-BLED score was 1.90 ± 1.00. LAmbre device placement was successful in 101 patients (98.05%). Mean follow-up was 12.2 months. Five patients (4.95%) developed a new pericardial effusion after the procedure; none required treatment. Eighty-six patients (85.15%) exhibited no peri-device leak (PDL). However, 13 (12.8%) had a small (0-3 mm) PDL and two (2.3%) had a moderate PDL (3-5 mm). One recurrent stroke occurred during follow-up (1.1%). No other complications occurred. CONCLUSIONS: This multicenter study shows the safety and efficacy of LAmbre left atrial appendage occlusion for NVAF patients with a history of stroke or TIA.


Asunto(s)
Apéndice Atrial , Fibrilación Atrial , Ataque Isquémico Transitorio , Accidente Cerebrovascular Isquémico , Accidente Cerebrovascular , Humanos , Persona de Mediana Edad , Anciano , Fibrilación Atrial/complicaciones , Fibrilación Atrial/cirugía , Accidente Cerebrovascular Isquémico/complicaciones , Apéndice Atrial/cirugía , Ataque Isquémico Transitorio/complicaciones , Accidente Cerebrovascular/epidemiología , Accidente Cerebrovascular/prevención & control , Accidente Cerebrovascular/complicaciones , Resultado del Tratamiento
17.
Biodegradation ; 2023 Nov 21.
Artículo en Inglés | MEDLINE | ID: mdl-37987937

RESUMEN

Composting is a process of microbial degradation of organic waste and is commonly applied for waste management. This is a slow process and requires a lot of land and human resources. The present study investigated mechanical augmentation with required microbial culture for composting municipal solid waste (MSW). Thirty isolates were subjected to 16S rDNA PCR amplification and gene sequencing. The isolates' sequencing from the compost samples was processed on BLASTn. Fourteen strains were identified for further experiments. The results divulge that Empedobacter (04), Bacillus (02), Proteus (02), Lactiplantibacillus (01), Klebsiella (01), Citrobacter (01), Brevibacillus (01), E. coli (01) and one unidentified strain were growing during composting. Eleven combinations of bacterial consortium and respective additives were applied for the organic waste decomposition in the next stage, resulting in varied completion periods ranging from 3 to 14 days. Two combinations were completed within 3 days, which are considered ideal combinations for composting. The microbial consortium was significantly diverse, which is a reason for rapid biodegradation. The present study reveals that the technology will be highly feasible for municipal solid waste management in tropical/subtropical countries.

18.
Front Cell Infect Microbiol ; 13: 1163993, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37645380

RESUMEN

Background: The epidemiology of Mycobacterium tuberculosis complex (MTBC) lineage 5 (L5) infections in Ghana revealed a significantly increased prevalence in Ewes compared to other self-reported ethnic groups. In that context, we sought to investigate the early phase of tuberculosis (TB) infection using ex vivo infection of macrophages derived from the blood of Ewe and Akan ethnic group volunteers with MTBC L4 and L5 strains. Methods: The study participants consisted of 16 controls, among which self-reported Akan and Ewe ethnicity was equally represented, as well as 20 cured TB cases consisting of 11 Akans and 9 Ewes. Peripheral blood mononuclear cells were isolated from both healthy controls and cured TB cases. CD14+ monocytes were isolated and differentiated into monocyte-derived macrophages (MDMs) before infection with L4 or L5 endemic strains. The bacterial load was assessed after 2 hours (uptake) as well as 3 and 7 days post-infection. Results: We observed a higher capacity of MDMs from Ewes to phagocytose L4 strains (p < 0.001), translating into a higher bacillary load on day 7 (p < 0.001) compared to L5, despite the higher replication rate of L5 in Ewe MDMs (fold change: 1.4 vs. 1.2, p = 0.03) among the controls. On the contrary, within macrophages from Akans, we observed a significantly higher phagocytic uptake of L5 (p < 0.001) compared to L4, also translating into a higher load on day 7 (p = 0.04). However, the replication rate of L4 in Akan MDMs was higher than that of L5 (fold change: L4 = 1.2, L4 = 1.1, p = 0.04). Although there was no significant difference in the uptake of L4 and L5 among cured TB cases, there was a higher bacterial load of both L4 (p = 0.02) and L5 (p = 0.02) on day 7 in Ewe MDMs. Conclusion: Our results suggest that host ethnicity (driven by host genetic diversity), MTBC genetic diversity, and individual TB infection history are all acting together to modulate the outcome of macrophage infections by MTBC.


Asunto(s)
Tuberculosis Latente , Mycobacterium tuberculosis , Humanos , Animales , Femenino , Ovinos , Etnicidad , Ghana/epidemiología , Autoinforme , Leucocitos Mononucleares , Macrófagos
19.
Chin Neurosurg J ; 9(1): 15, 2023 May 25.
Artículo en Inglés | MEDLINE | ID: mdl-37231518

RESUMEN

BACKGROUND: Penetrating trauma to the brain is a rare mode of self-harm in individuals with depressive psychosis. It may have variable presentations ranging from intact neurological status to non-survivable damage and the subjects may be surprisingly apathetic to pain. It is even unusual for such an injury to have an excellent prognosis despite coming late to clinical attention. CASE PRESENTATIONS: We report two cases of patients with psychotic depression who attempted suicide by hammering nails into their heads. On imaging, deep penetration within the brain parenchyma was noted; however, neither case had any neurological deficit or symptoms attributable to brain trauma. CONCLUSIONS: Self-inflicted penetrating brain injuries with peculiar objects such as nails are rarely encountered in practice. They need prompt management for their removal and addressing the underlying mental health illnesses.

20.
J Obstet Gynaecol ; 43(1): 2205513, 2023 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-37154805

RESUMEN

Systemic Lupus Erythematosus (SLE) is an auto-immune disease in which the immune system assaults its tissues. We aimed to analyse the maternal and foetal outcomes during pregnancy in SLE mothers. A literature search was conducted by two investigators to assess SLE's outcomes on maternal and foetal during pregnancies. We searched PubMed/Medline, Embase, and Google scholar to collect evidence from different research studies, draw the conclusion, and report it. In our investigation, we found out that SLE could cause a spectrum of complications during pregnancy, not only for the mother but also for the foetus. It could affect fertility and cause difficult pregnancies for the couple as well which includes certain complications such as: preterm labour and delivery, high blood pressure (preeclampsia), placental insufficiency, miscarriage or stillbirth, whereas in the foetus SLE can cause mortality, preterm birth, and neonatal lupus (a temporary condition in the baby caused by SLE-related antibodies) and structural abnormalities. The literature suggests that SLE could prove fatal for the foetus and induce many complications in the mother. However, this could be avoided if pregnancy is planned right from the start and proper management is provided to the mother during pregnancy and delivery.p.


Asunto(s)
Lupus Eritematoso Sistémico , Complicaciones del Embarazo , Nacimiento Prematuro , Embarazo , Recién Nacido , Femenino , Humanos , Resultado del Embarazo , Complicaciones del Embarazo/etiología , Nacimiento Prematuro/etiología , Placenta , Lupus Eritematoso Sistémico/complicaciones , Feto , Estudios Retrospectivos
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