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1.
Sci Rep ; 13(1): 15019, 2023 09 12.
Artigo em Inglês | MEDLINE | ID: mdl-37699992

RESUMO

This paper presents a machine learning-based technique for interpreting bone scintigraphy images, focusing on feature extraction and introducing a new feature selection method called GJOW. GJOW enhances the effectiveness of the golden jackal optimization (GJO) algorithm by integrating operators from the whale optimization algorithm (WOA). The technique's performance is evaluated through extensive experiments using 18 benchmark datasets and 581 bone scan images obtained from a gamma camera, including 362 abnormal and 219 normal cases. The results highlight the superior predictive effectiveness of the GJOW algorithm in bone metastasis detection, achieving an accuracy of 71.79% and specificity of 91.14%. The contributions of this study include the introduction of a new machine learning-based approach for detecting bone metastasis using gamma camera scans, leading to improved accuracy in identifying bone metastases. The findings have practical implications for early detection and intervention, potentially improving patient outcomes.


Assuntos
Neoplasias Ósseas , Canidae , Humanos , Animais , Baleias , Chacais , Tomografia Computadorizada por Raios X , Algoritmos , Benchmarking , Neoplasias Ósseas/diagnóstico por imagem
2.
Mol Neurobiol ; 59(1): 191-233, 2022 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-34655056

RESUMO

The etiology of many neurological diseases affecting the central nervous system (CNS) is unknown and still needs more effective and specific therapeutic approaches. Gene therapy has a promising future in treating neurodegenerative disorders by correcting the genetic defects or by therapeutic protein delivery and is now an attraction for neurologists to treat brain disorders, like Alzheimer's disease, Parkinson's disease, amyotrophic lateral sclerosis, spinal muscular atrophy, spinocerebellar ataxia, epilepsy, Huntington's disease, stroke, and spinal cord injury. Gene therapy allows the transgene induction, with a unique expression in cells' substrate. This article mainly focuses on the delivering modes of genetic materials in the CNS, which includes viral and non-viral vectors and their application in gene therapy. Despite the many clinical trials conducted so far, data have shown disappointing outcomes. The efforts done to improve outcomes, efficacy, and safety in the identification of targets in various neurological disorders are also discussed here. Adapting gene therapy as a new therapeutic approach for treating neurological disorders seems to be promising, with early detection and delivery of therapy before the neuron is lost, helping a lot the development of new therapeutic options to translate to the clinic.


Assuntos
Terapia Genética , Peptídeos e Proteínas de Sinalização Intercelular/genética , Doenças Neurodegenerativas/terapia , Vetores Genéticos , Humanos , Doenças Neurodegenerativas/genética , Resultado do Tratamento
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