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1.
J Biomed Inform ; 156: 104667, 2024 Jun 05.
Artigo em Inglês | MEDLINE | ID: mdl-38848885

RESUMO

OBJECTIVES: Candidemia is the most frequent invasive fungal disease and the fourth most frequent bloodstream infection in hospitalized patients. Its optimal management is crucial for improving patients' survival. The quality of candidemia management can be assessed with the EQUAL Candida Score. The objective of this work is to support its automatic calculation by extracting central venous catheter-related information from Italian text in clinical notes of electronic medical records. MATERIALS AND METHODS: The sample includes 4,787 clinical notes of 108 patients hospitalized between January 2018 to December 2020 in the Intensive Care Units of the IRCCS San Martino Polyclinic Hospital in Genoa (Italy). The devised pipeline exploits natural language processing (NLP) to produce numerical representations of clinical notes used as input of machine learning (ML) algorithms to identify CVC presence and removal. It compares the performances of (i) rule-based method, (ii) count-based method together with a ML algorithm, and (iii) a transformers-based model. RESULTS: Results, obtained with three different approaches, were evaluated in terms of weighted F1 Score. The random forest classifier showed the higher performance in both tasks reaching 82.35%. CONCLUSION: The present work constitutes a first step towards the automatic calculation of the EQUAL Candida Score from unstructured daily collected data by combining ML and NLP methods. The automatic calculation of the EQUAL Candida Score could provide crucial real-time feedback on the quality of candidemia management, aimed at further improving patients' health.

2.
HIV Med ; 24(11): 1150-1157, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-37439411

RESUMO

The rise of HIV-1 drug resistance to nonnucleoside reverse transcriptase inhibitors (NNRTIs) threatens the long-term success of NNRTI-based therapies. Our study aims to describe the circulation of major resistance-associated mutations (RAMs) for NNRTIs in people living with HIV (PLWH) in Italy from 2000 to 2020. We included 5982 naïves and 28 505 genotypes from 9387 treatment-experienced PLWH from the Antiviral Response Cohort Analysis (ARCA) cohort. Transmitted drug resistance (TDR) was found in 12.5% and declined from 17.3% in 2000-2003 to 10.9% in 2016-2020 (p = 0.003). Predictors of TDR were viral subtype B [vs. non-B, adjusted odds ratio (aOR) = 1.94, p < 0.001], zenith viral load (VL) (per 1 log10 higher, aOR = 0.86, p = 0.013), nadir CD4 cell count (per 100 cells/µL increase aOR = 0.95, p = 0.013). At least one RAM for NNRTIs among treatment experienced PLWH was detected in 33.2% and pre-treatment drug resistance (PDR) declined from 43.4% in 2000-2003 to 20.9% in 2016-2020 (p < 0.001). Predictors of PDR were sexual transmission route (vs. others, aOR = 0.78, p < 0.001), time since HIV diagnosis (per 1 month longer, aOR = 1.002, p < 0.001), viral subtype B (vs. non B, aOR = 1.37, p < 0.001), VL (per 1 log10 higher, aOR = 1.12, p < 0.001), nadir CD4 count (per 100 cells/µL increase, aOR = 0.91, p < 0.001), previous exposure to any NNRTI (aOR = 2.31, p < 0.001) and a more recent calendar year sequence (any time span > 2008 vs. 2000-2003, any aOR <1, p < 0.001). Circulation of RAMs to NNRTIs declined during the last 20 years in Italy. NNRTIs remain pivotal drugs for the management of HIV-1 due to safety concerns and long-acting options.


Assuntos
Infecções por HIV , Soropositividade para HIV , HIV-1 , Humanos , Inibidores da Transcriptase Reversa/farmacologia , Inibidores da Transcriptase Reversa/uso terapêutico , HIV-1/genética , Estudos de Coortes , Farmacorresistência Viral/genética , Soropositividade para HIV/tratamento farmacológico
3.
New Microbiol ; 46(3): 246-251, 2023 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-37747468

RESUMO

To achieve the World Health Organization goal of hepatitis C virus (HCV) eradication, barriers to treatment should be investigated and overcome. The aim of this study was to identify those barriers and describe the strategies adopted to achieve HCV micro-elimination in a cohort of coinfected people living with HIV (PLWH-HCV). Adult PLWH-HCV followed at our hospital with detectable serum HCV-RNA in 2018 were enrolled. After a three-year follow-up, barriers to HCV treatment were investigated and strategies to overcome them were described. Of 492 PLWH-HCV seen in 2018, 29 (5.9%) had detectable serum HCV-RNA. Eight out of 29 (27.6%) were excluded because they were already under treatment, while 2 others were excluded because they moved to other outpatient clinics. Among the remaining 19 study participants, the most common barriers to treatment were poor adherence to therapies and follow-up visits (n=9, 47%), recent HCV diagnosis awaiting proper staging (n=3, 16%) and treatment hesitancy (n=2, 10%). During the following three years, direct-acting antivirals (DAAs) treatment was completed in 11/19 (58%) cases, with achievement of sustained virological response in 100% of cases. For the remaining cases, 2/19 (10.5%) were lost to follow-up, 2/19 (10.5%) died before treatment initiation and 4/19 (21.0%) are still awaiting treatment. Despite 3 years of effort, HCV micro-elimination has not been achieved at our center. We observed that poor adherence and treatment hesitancy were the main barriers to treatment. Strategies addressing these issues need to be implemented.


Assuntos
Hepatite C Crônica , Hepatite C , Adulto , Humanos , Hepacivirus , Antivirais/uso terapêutico , Hepatite C/tratamento farmacológico , RNA
4.
J Community Health ; 47(5): 800-805, 2022 10.
Artigo em Inglês | MEDLINE | ID: mdl-35729474

RESUMO

Diagnosing people living with chronic viral hepatitis is challenging due to the absence of symptoms as long as liver decompensated cirrhosis come out. The aim of this retrospective study was to evaluate the prevalence of HBV and/or HCV infections in a non-selected population, hospitalised for SARS-CoV-2 infection in a tertiary care hospital in Northern Italy. During the study period 1,429 patients were admitted to hospital for SARS-CoV-2 infection, serologic tests for HBV and/or HCV were available for 382 (27%) patients and 3 were excluded due to their previous known serologic status. Among 379 patients, 235 (62%) were male, median age was 70 years (range 21-103), 360 (95%) were Caucasian. Among them, 372/379 (98%) were screened for HBsAg, 320/379 (84%) for HBcAb. HBsAg was positive in 2/372 (0.5%, 95% CI 0.0006-0.02) patients (only in one HBV-DNA was performed that was negative), while HBcAb was found positive in 55/320 (17%, 95% CI 0.13-0.22). Among 370/379 (98%) patients screened for HCV, 11/370 (3%, 95% CI 0.02-0.05) had positive HCV-Ab. Five out of 11 (45%) were tested for HCV-RNA that resulted positive in two patients (0.5%, 95% CI 0.0006-0.02). Considering this data, even though the screening was performed in only 27% of study population, a tailored screening in people with known risk factors for hepatitis might be preferable to universal screening in low prevalence areas. Also a prompt diagnostic workout should begin in case of clinical or laboratory suspicion of hepatitis and in those starting immunosuppressive treatments.


Assuntos
COVID-19 , Hepatite C , Hepatite Viral Humana , Adulto , Idoso , Idoso de 80 Anos ou mais , COVID-19/epidemiologia , DNA Viral , Feminino , Anticorpos Anti-Hepatite B , Antígenos de Superfície da Hepatite B , Vírus da Hepatite B , Humanos , Masculino , Pessoa de Meia-Idade , Prevalência , RNA , Estudos Retrospectivos , SARS-CoV-2 , Adulto Jovem
5.
PLoS Pathog ; 15(8): e1007958, 2019 08.
Artigo em Inglês | MEDLINE | ID: mdl-31465518

RESUMO

The causative mutation responsible for limb girdle muscular dystrophy 1F (LGMD1F) is one heterozygous single nucleotide deletion in the stop codon of the nuclear import factor Transportin 3 gene (TNPO3). This mutation causes a carboxy-terminal extension of 15 amino acids, producing a protein of unknown function (TNPO3_mut) that is co-expressed with wild-type TNPO3 (TNPO3_wt). TNPO3 has been involved in the nuclear transport of serine/arginine-rich proteins such as splicing factors and also in HIV-1 infection through interaction with the viral integrase and capsid. We analyzed the effect of TNPO3_mut on HIV-1 infection using PBMCs from patients with LGMD1F infected ex vivo. HIV-1 infection was drastically impaired in these cells and viral integration was reduced 16-fold. No significant effects on viral reverse transcription and episomal 2-LTR circles were observed suggesting that the integration of HIV-1 genome was restricted. This is the second genetic defect described after CCR5Δ32 that shows strong resistance against HIV-1 infection.


Assuntos
Infecções por HIV/prevenção & controle , HIV-1/fisiologia , Distrofia Muscular do Cíngulo dos Membros/patologia , Mutação , Replicação Viral/genética , beta Carioferinas/genética , Adolescente , Adulto , Estudos de Casos e Controles , Criança , Pré-Escolar , Feminino , Infecções por HIV/genética , Infecções por HIV/virologia , Humanos , Lactente , Masculino , Pessoa de Meia-Idade , Distrofia Muscular do Cíngulo dos Membros/genética , Linhagem , Adulto Jovem
6.
Genet Med ; 23(10): 1933-1943, 2021 10.
Artigo em Inglês | MEDLINE | ID: mdl-34172899

RESUMO

PURPOSE: Pathogenic variants in Lysyl-tRNA synthetase 1 (KARS1) have increasingly been recognized as a cause of early-onset complex neurological phenotypes. To advance the timely diagnosis of KARS1-related disorders, we sought to delineate its phenotype and generate a disease model to understand its function in vivo. METHODS: Through international collaboration, we identified 22 affected individuals from 16 unrelated families harboring biallelic likely pathogenic or pathogenic in KARS1 variants. Sequencing approaches ranged from disease-specific panels to genome sequencing. We generated loss-of-function alleles in zebrafish. RESULTS: We identify ten new and four known biallelic missense variants in KARS1 presenting with a moderate-to-severe developmental delay, progressive neurological and neurosensory abnormalities, and variable white matter involvement. We describe novel KARS1-associated signs such as autism, hyperactive behavior, pontine hypoplasia, and cerebellar atrophy with prevalent vermian involvement. Loss of kars1 leads to upregulation of p53, tissue-specific apoptosis, and downregulation of neurodevelopmental related genes, recapitulating key tissue-specific disease phenotypes of patients. Inhibition of p53 rescued several defects of kars1-/- knockouts. CONCLUSION: Our work delineates the clinical spectrum associated with KARS1 defects and provides a novel animal model for KARS1-related human diseases revealing p53 signaling components as potential therapeutic targets.


Assuntos
Perda Auditiva , Lisina-tRNA Ligase/genética , Transtornos do Neurodesenvolvimento , Alelos , Animais , Modelos Animais de Doenças , Perda Auditiva/genética , Humanos , Transtornos do Neurodesenvolvimento/genética , Fenótipo , Peixe-Zebra/genética
7.
BMC Infect Dis ; 21(1): 353, 2021 Apr 15.
Artigo em Inglês | MEDLINE | ID: mdl-33858331

RESUMO

BACKGROUND: The primary objective of the study is to describe the cellular characteristics of bronchoalveolar lavage fluid (BALF) of COVID-19 patients requiring invasive mechanical ventilation; the secondary outcome is to describe BALF findings between survivors vs non-survivors. MATERIALS AND METHODS: Patients positive for SARS-CoV-2 RT PCR, admitted to ICU between March and April 2020 were enrolled. At ICU admission, BALF were analyzed by flow cytometry. Univariate, multivariate and Spearman correlation analyses were performed. RESULTS: Sixty-four patients were enrolled, median age of 64 years (IQR 58-69). The majority cells in the BALF were neutrophils (70%, IQR 37.5-90.5) and macrophages (27%, IQR 7-49) while a minority were lymphocytes, 1%, TCD3+ 92% (IQR 82-95). The ICU mortality was 32.8%. Non-survivors had a significantly older age (p = 0.033) and peripheral lymphocytes (p = 0.012) were lower compared to the survivors. At multivariate analysis the percentage of macrophages in the BALF correlated with poor outcome (OR 1.336, CI95% 1.014-1.759, p = 0.039). CONCLUSIONS: In critically ill patients, BALF cellularity is mainly composed of neutrophils and macrophages. The macrophages percentage in the BALF at ICU admittance correlated with higher ICU mortality. The lack of lymphocytes in BALF could partly explain a reduced anti-viral response.


Assuntos
Líquido da Lavagem Broncoalveolar/citologia , Líquido da Lavagem Broncoalveolar/imunologia , COVID-19/epidemiologia , COVID-19/imunologia , Contagem de Leucócitos , Pneumonia Viral/epidemiologia , Pneumonia Viral/imunologia , Respiração Artificial , Adulto , Idoso , Líquido da Lavagem Broncoalveolar/virologia , COVID-19/mortalidade , COVID-19/virologia , Estado Terminal/epidemiologia , Feminino , Humanos , Unidades de Terapia Intensiva , Itália/epidemiologia , Linfócitos/citologia , Macrófagos/citologia , Masculino , Pessoa de Meia-Idade , Neutrófilos/citologia , Pneumonia Viral/mortalidade , Pneumonia Viral/virologia , SARS-CoV-2/imunologia , SARS-CoV-2/patogenicidade , Sobreviventes/estatística & dados numéricos , Resultado do Tratamento
8.
New Microbiol ; 44(4): 245-247, 2021 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-35007331

RESUMO

This retrospective study describes demographics and outcomes of adult patients with SARS-CoV-2 infection admitted to our ward during the first wave (from February 25 to May 30, 2020) and during the second wave (from August 5 to November 30, 2020). The primary study objective was to evaluate overall in-hospital mortality, which was 21.1% (60/285) vs 10.3% (27/261) (p=.0006). This study seems to corroborate and expand the concept that the second wave of COVID-19 was less deadly than the first. Despite some limitations, the clinical and managerial experience gained during the first wave trained us to handle and control the second one.


Assuntos
COVID-19 , Doenças Transmissíveis , Adulto , Hospitais , Humanos , Itália , Estudos Retrospectivos , SARS-CoV-2
9.
Curr HIV/AIDS Rep ; 16(5): 414-422, 2019 10.
Artigo em Inglês | MEDLINE | ID: mdl-31506864

RESUMO

PURPOSE OF REVIEW: HIV-1 infection is incurable due to the existence of latent reservoirs that persist in the face of cART. In this review, we describe the existence of multiple HIV-1 reservoirs, the mechanisms that support their persistence, and the potential use of tyrosine kinase inhibitors (TKIs) to block several pathogenic processes secondary to HIV-1 infection. RECENT FINDINGS: Dasatinib interferes in vitro with HIV-1 persistence by two independent mechanisms. First, dasatinib blocks infection and potential expansion of the latent reservoir by interfering with the inactivating phosphorylation of SAMHD1. Secondly, dasatinib inhibits the homeostatic proliferation induced by γc-cytokines. Since homeostatic proliferation is thought to be the main mechanism behind the maintenance of the latent reservoir, we propose that blocking this process will gradually reduce the size of the reservoir. TKIs together with cART will interfere with HIV-1 latent reservoir persistence, favoring the prospect for viral eradication.


Assuntos
Infecções por HIV/patologia , HIV-1/efeitos dos fármacos , Inibidores de Proteínas Quinases/uso terapêutico , Proteínas Tirosina Quinases/metabolismo , Latência Viral/efeitos dos fármacos , Linfócitos T CD4-Positivos , Citocinas/metabolismo , Dasatinibe/uso terapêutico , Infecções por HIV/tratamento farmacológico , Humanos , Proteína 1 com Domínio SAM e Domínio HD/metabolismo
10.
J Environ Manage ; 200: 490-501, 2017 Sep 15.
Artigo em Inglês | MEDLINE | ID: mdl-28622652

RESUMO

Polyethylene plastic mulches are widely used in agriculture due to the countless advantages they have. However, the environmental problems associated with their use have led us to look for alternative mulch materials which degrade naturally and quickly, impact the environment less and function satisfactorily. To this end, biodegradable plastics and paper mulches are being used, but aspects related to their degradation should be studied more in-depth. This work provides the deterioration pattern of six biodegradable mulch materials (i.e. vegetable starch, polylactic acid plastic films or paper mulches) in horticultural crop in the edaphoclimatic conditions of Central Spain in two situations: over the lifetime of the mulches and after being incorporated into the soil. In the first situation, the deterioration levels were evaluated by recording the puncture resistance, weight and area covered in the above-soil and the in-soil part, and after soil incorporation by the number of fragments, their surfaces and weight. In the above-soil part, biodegradable plastics experienced further deterioration, particularly with no crop, while the paper mulch remained practically intact. However, the in-soil paper experienced complete and rapid degradation. At 200 days after soil incorporation, mulch residues were scarce, with the environmental effects it entails. These findings offer practical implications regarding the type of crop. The measurement of the surface covered, rather than the weight, was shown to be a more reliable indicator of the degradation of mulches. Furthermore, visual estimation was found to underestimate the functionality of mulches in comparison to that of the measurement of the surface covered.


Assuntos
Agricultura , Meio Ambiente , Microbiologia do Solo , Solo , Espanha
11.
Retrovirology ; 12: 78, 2015 Sep 16.
Artigo em Inglês | MEDLINE | ID: mdl-26376973

RESUMO

BACKGROUND: HIV-1 replication results in mitochondrial damage that is enhanced during antiretroviral therapy (ART). The onset of HIV-1 replication is regulated by viral protein Tat, a 101-residue protein codified by two exons that elongates viral transcripts. Although the first exon of Tat (aa 1-72) forms itself an active protein, the presence of the second exon (aa 73-101) results in a more competent transcriptional protein with additional functions. RESULTS: Mitochondrial overall functions were analyzed in Jurkat cells stably expressing full-length Tat (Tat101) or one-exon Tat (Tat72). Representative results were confirmed in PBLs transiently expressing Tat101 and in HIV-infected Jurkat cells. The intracellular expression of Tat101 induced the deregulation of metabolism and cytoskeletal proteins which remodeled the function and distribution of mitochondria. Tat101 reduced the transcription of the mtDNA, resulting in low ATP production. The total amount of mitochondria increased likely to counteract their functional impairment. These effects were enhanced when Tat second exon was expressed. CONCLUSIONS: Intracellular Tat altered mtDNA transcription, mitochondrial content and distribution in CD4+ T cells. The importance of Tat second exon in non-transcriptional functions was confirmed. Tat101 may be responsible for mitochondrial dysfunctions found in HIV-1 infected patients.


Assuntos
Linfócitos T CD4-Positivos/metabolismo , Linfócitos T CD4-Positivos/virologia , DNA Mitocondrial/genética , HIV-1/fisiologia , Mitocôndrias/ultraestrutura , Produtos do Gene tat do Vírus da Imunodeficiência Humana/genética , Produtos do Gene tat do Vírus da Imunodeficiência Humana/metabolismo , Linfócitos T CD4-Positivos/citologia , Linfócitos T CD4-Positivos/ultraestrutura , Citoesqueleto/patologia , Citoesqueleto/virologia , DNA Mitocondrial/metabolismo , Éxons , Glicólise , Humanos , Células Jurkat , Leucócitos Mononucleares , Mitocôndrias/genética
12.
J Biol Chem ; 288(11): 7626-7644, 2013 Mar 15.
Artigo em Inglês | MEDLINE | ID: mdl-23364796

RESUMO

HIV-1 replication is efficiently controlled by the regulator protein Tat (101 amino acids) and codified by two exons, although the first exon (1-72 amino acids) is sufficient for this process. Tat can be released to the extracellular medium, acting as a soluble pro-apoptotic factor in neighboring cells. However, HIV-1-infected CD4(+) T lymphocytes show a higher resistance to apoptosis. We observed that the intracellular expression of Tat delayed FasL-mediated apoptosis in both peripheral blood lymphocytes and Jurkat cells, as it is an essential pathway to control T cell homeostasis during immune activation. Jurkat-Tat cells showed impairment in the activation of caspase-8, deficient release of mitochondrial cytochrome c, and delayed activation of both caspase-9 and -3. This protection was due to a profound deregulation of proteins that stabilized the mitochondrial membrane integrity, such as heat shock proteins, prohibitin, or nucleophosmin, as well as to the up-regulation of NF-κB-dependent anti-apoptotic proteins, such as BCL2, c-FLIPS, XIAP, and C-IAP2. These effects were observed in Jurkat expressing full-length Tat (Jurkat-Tat101) but not in Jurkat expressing the first exon of Tat (Jurkat-Tat72), proving that the second exon, and particularly the NF-κB-related motif ESKKKVE, was necessary for Tat-mediated protection against FasL apoptosis. Accordingly, the protection exerted by Tat was independent of its function as a regulator of both viral transcription and elongation. Moreover, these data proved that HIV-1 could have developed strategies to delay FasL-mediated apoptosis in infected CD4(+) T lymphocytes through the expression of Tat, thus favoring the persistent replication of HIV-1 in infected T cells.


Assuntos
Apoptose , Linfócitos T CD4-Positivos/virologia , Regulação da Expressão Gênica , HIV-1/metabolismo , Receptor fas/metabolismo , Produtos do Gene tat do Vírus da Imunodeficiência Humana/metabolismo , Linfócitos T CD4-Positivos/metabolismo , Caspase 3/metabolismo , Caspase 8/metabolismo , Caspase 9/metabolismo , Citocromos c/metabolismo , Éxons , Humanos , Células Jurkat , Mitocôndrias/metabolismo , Mutagênese Sítio-Dirigida , NF-kappa B/metabolismo , Análise de Sequência com Séries de Oligonucleotídeos , Proteoma , Proteômica/métodos , Transfecção
13.
Mol Genet Metab ; 111(3): 393-398, 2014 03.
Artigo em Inglês | MEDLINE | ID: mdl-24374284

RESUMO

OBJECTIVE: Pelizaeus-Merzbacher-like disease is a rare hypomyelinating leukodystrophy caused by autosomal recessive mutations in GJC2, encoding a gap junction protein essential for production of a mature myelin sheath. A previously identified GJC2 mutation (c.-167A>G) in the promoter region is hypothesized to disrupt a putative SOX10 binding site; however, the lack of additional mutations in this region and contradictory functional data have limited the interpretation of this variant. METHODS: We describe two independent Pelizaeus-Merzbacher-like disease families with a novel promoter region mutation and updated in vitro functional assays. RESULTS: A novel GJC2 mutation (c.-170A>G) in the promoter region was identified in Pelizaeus-Merzbacher-like disease patients. In vitro functional assays using human GJC2 promoter constructs demonstrated that this mutation and the previously described c.-167A>G mutation similarly diminished the transcriptional activity driven by SOX10 and the binding affinity for SOX10. INTERPRETATION: These findings support the role of GJC2 promoter mutations in Pelizaeus-Merzbacher-like disease. GJC2 promoter region mutation screening should be included in the evaluation of patients with unexplained hypomyelinating leukodystrophies.


Assuntos
Conexinas/genética , Doenças Desmielinizantes Hereditárias do Sistema Nervoso Central/genética , Regiões Promotoras Genéticas , Fatores de Transcrição SOXE/metabolismo , Adulto , Sítios de Ligação , Criança , Conexinas/metabolismo , Feminino , Doenças Desmielinizantes Hereditárias do Sistema Nervoso Central/metabolismo , Doenças Desmielinizantes Hereditárias do Sistema Nervoso Central/patologia , Humanos , Masculino , Dados de Sequência Molecular , Mutação , Bainha de Mielina/patologia , Ligação Proteica , Fatores de Transcrição SOXE/genética
14.
Clin Ther ; 2024 Mar 21.
Artigo em Inglês | MEDLINE | ID: mdl-38519371

RESUMO

There is growing interest in exploiting the advances in artificial intelligence and machine learning (ML) for improving and monitoring antimicrobial prescriptions in line with antimicrobial stewardship principles. Against this background, the concepts of interpretability and explainability are becoming increasingly essential to understanding how ML algorithms could predict antimicrobial resistance or recommend specific therapeutic agents, to avoid unintended biases related to the "black box" nature of complex models. In this commentary, we review and discuss some relevant topics on the use of ML algorithms for antimicrobial stewardship interventions, highlighting opportunities and challenges, with particular attention paid to interpretability and explainability of employed models. As in other fields of medicine, the exponential growth of artificial intelligence and ML indicates the potential for improving the efficacy of antimicrobial stewardship interventions, at least in part by reducing time-consuming tasks for overwhelmed health care personnel. Improving our knowledge about how complex ML models work could help to achieve crucial advances in promoting the appropriate use of antimicrobials, as well as in preventing antimicrobial resistance selection and dissemination.

15.
Sci Rep ; 14(1): 2349, 2024 01 29.
Artigo em Inglês | MEDLINE | ID: mdl-38287042

RESUMO

Epilepsy surgery is an option for people with focal onset drug-resistant (DR) seizures but a delayed or incorrect diagnosis of epileptogenic zone (EZ) location limits its efficacy. Seizure semiological manifestations and their chronological appearance contain valuable information on the putative EZ location but their interpretation relies on extensive experience. The aim of our work is to support the localization of EZ in DR patients automatically analyzing the semiological description of seizures contained in video-EEG reports. Our sample is composed of 536 descriptions of seizures extracted from Electronic Medical Records of 122 patients. We devised numerical representations of anamnestic records and seizures descriptions, exploiting Natural Language Processing (NLP) techniques, and used them to feed Machine Learning (ML) models. We performed three binary classification tasks: localizing the EZ in the right or left hemisphere, temporal or extra-temporal, and frontal or posterior regions. Our computational pipeline reached performances above 70% in all tasks. These results show that NLP-based numerical representation combined with ML-based classification models may help in localizing the origin of the seizures relying only on seizures-related semiological text data alone. Accurate early recognition of EZ could enable a more appropriate patient management and a faster access to epilepsy surgery to potential candidates.


Assuntos
Epilepsia Resistente a Medicamentos , Epilepsias Parciais , Epilepsia , Humanos , Processamento de Linguagem Natural , Convulsões , Epilepsia Resistente a Medicamentos/diagnóstico , Epilepsia Resistente a Medicamentos/cirurgia , Eletroencefalografia , Epilepsias Parciais/diagnóstico , Epilepsias Parciais/cirurgia
16.
Animals (Basel) ; 14(10)2024 May 07.
Artigo em Inglês | MEDLINE | ID: mdl-38791616

RESUMO

Ethical considerations regarding our treatment of animals have gained strength, leading to legislation and a societal focus across various disciplines. This is a subject of study within curricula related to agri-food sciences. The aim was to determine the perceptions of agronomy university students concerning animal welfare in livestock production systems. A survey was conducted to encompass various aspects, from participants' sociodemographic attributes to their attitudes and behaviors regarding animal welfare and the consumption of animal products. Statistical analysis, performed using R software, delved into the associations between participants' characteristics and their perspectives on the ethical, bioethical, and legal dimensions of animal welfare. Associations between demographic factors and ethical viewpoints among students were identified. Gender differences emerged in animal treatment perceptions, while rural and urban environments impacted perspectives on various animals. Bioethical considerations revealed distinctive disparities based on gender and education in concerns regarding animal welfare, value perceptions, evaluations of animal behaviors, and opinions on animal research. It is crucial to distinguish between animal welfare and the ethical considerations arising from coexisting with sentient beings capable of experiencing suffering. Ethical theories provide a lens through which we perceive our obligations toward animals. The responsibility to ensure animal welfare is firmly rooted in recognizing that animals, like humans, experience pain and physical suffering. Consequently, actions causing unjustified suffering or mistreatment, particularly for entertainment purposes, are considered morally unacceptable.

17.
J Clin Med ; 13(5)2024 Feb 21.
Artigo em Inglês | MEDLINE | ID: mdl-38592054

RESUMO

BACKGROUND: HIV and non-HIV-related factors have been related to weight gain (WG); however, their specific impact on people with HIV (PWH) who are overweight or obese remains unclear. METHODS: This is a single-center observational study enrolling PWH with a BMI > 25 kg/m2. A generalized linear model was used to assess variables related to greater WG during 12 years of observation. RESULTS: A total of 321 PWH were enrolled, 67% overweight and 33% obese, who gained an average of 0.2 ± 1.3 and 1.7 ± 1.5 kg/year, respectively (p < 0.0001). Years since HIV infection were the only variable significantly associated with WG (ß -0.048, 95% CI -0.083; -0.013) during the study period, while type of ART did not influence the outcome. Narrowing the observation to the period of the SARS-CoV-2 pandemic, PWH with a longer duration of infection (ß 0.075, 95% CI 0.033; 0.117) and a greater increase in triglycerides (ß 0.005; 95% CI 0.000; 0.011) gained more weight, while higher BMI (ß -0.256, 95% CI -0.352; -0.160), obesity (ß -1.363, 95% CI -2.319; -0.408), diabetes mellitus (ß -1.538, 95% CI -2.797; -0.278), and greater abdominal circumference (ß -0.086, 95% CI -0.142; -0.030) resulted in protection. CONCLUSION: Among overweight and obese PWH, the amount of WG was higher in the first years after diagnosis of HIV and decreased thereafter, despite aging, regardless of the type of ART.

18.
J Neurotrauma ; 41(13-14): e1736-e1758, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38666723

RESUMO

Repetitive mild traumatic brain injury (rmTBI, e.g., sports concussions) may be associated with both acute and chronic symptoms and neurological changes. Despite the common occurrence of these injuries, therapeutic strategies are limited. One potentially promising approach is N-methyl-D-aspartate receptor (NMDAR) blockade to alleviate the effects of post-injury glutamatergic excitotoxicity. Initial pre-clinical work using the NMDAR antagonist, memantine, suggests that immediate treatment following rmTBI improves a variety of acute outcomes. It remains unclear (1) whether acute memantine treatment has long-term benefits and (2) whether delayed treatment following rmTBI is beneficial, which are both clinically relevant concerns. To test this, animals were subjected to rmTBI via a weight drop model with rotational acceleration (five hits in 5 days) and randomized to memantine treatment immediately, 3 months, or 6 months post-injury, with a treatment duration of one month. Behavioral outcomes were assessed at 1, 4, and 7 months post-injury. Neuropathological outcomes were characterized at 7 months post-injury. We observed chronic changes in behavior (anxiety-like behavior, motor coordination, spatial learning, and memory), as well as neuroinflammation (microglia, astrocytes) and tau phosphorylation (T231). Memantine treatment, either immediately or 6 months post-injury, appears to confer greater rescue of neuroinflammatory changes (microglia) than vehicle or treatment at the 3-month time point. Although memantine is already being prescribed chronically to address persistent symptoms associated with rmTBI, this study represents the first evidence of which we are aware to suggest a small but durable effect of memantine treatment in mild, concussive injuries. This effect suggests that memantine, although potentially beneficial, is insufficient to treat all aspects of rmTBI alone and should be combined with other therapeutic agents in a multi-therapy approach, with attention given to the timing of treatment.


Assuntos
Concussão Encefálica , Memantina , Memantina/uso terapêutico , Memantina/farmacologia , Concussão Encefálica/tratamento farmacológico , Animais , Masculino , Fatores de Tempo , Antagonistas de Aminoácidos Excitatórios/farmacologia , Antagonistas de Aminoácidos Excitatórios/uso terapêutico , Ratos Sprague-Dawley , Ratos
19.
J Vet Dent ; 30(1): 30-3, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-23757823

RESUMO

Salivary duct lithiasis is a condition characterized by the partial or total obstruction ofa salivary gland or its excretory duct due to the formation of sialoliths. A 9-year-old female donkey, belonging to the unique and endangered indigenous breed of donkey in Portugal, was diagnosed with a sialolith in the rostral portion of the right parotid duct based on clinical, oral, dental, and radiographic examination results. Surgical removal of the sialolith was done through a percutaneous approach.


Assuntos
Espécies em Perigo de Extinção , Equidae/cirurgia , Doenças Parotídeas/veterinária , Cálculos dos Ductos Salivares/veterinária , Animais , Procedimentos Cirúrgicos Dermatológicos/veterinária , Equidae/lesões , Feminino , Corpos Estranhos/veterinária , Procedimentos Cirúrgicos Bucais/veterinária , Doenças Parotídeas/cirurgia , Portugal , Cálculos dos Ductos Salivares/química , Cálculos dos Ductos Salivares/cirurgia
20.
Stud Health Technol Inform ; 309: 48-52, 2023 Oct 20.
Artigo em Inglês | MEDLINE | ID: mdl-37869804

RESUMO

The application of Natural Language Processing (NLP) to medical data has revolutionized different aspects of health care. The benefits obtained from the implementation of this technique spill over into several areas, including in the implementation of chatbots, which can provide medical assistance remotely. Every possible application of NLP depends on one first main step: the pre-processing of the corpus retrieved. The raw data must be prepared with the aim to be used efficiently for further analysis. Considerable progress has been made in this direction for the English language but for other languages, such as Italian, the state of the art is not equivalently advanced, especially for texts containing technical medical terms. The aim of this work is to identify and develop a preprocessing pipeline suitable for medical data written in Italian. The pipeline has been developed in Python environment, employing Enchant, ntlk modules and Hugging Face's BERT and BART-based models. Then, it has been tested on real conversations typed between patients and physicians regarding medical questions. The algorithm has been developed within the MULTI-SITA project of the Italian Society of Anti-Infective Therapy (SITA), but shows a flexible structure that can adapt to a large variety of data.


Assuntos
Algoritmos , Idioma , Humanos , Itália , Processamento de Linguagem Natural , Redação
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