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1.
Sci Rep ; 13(1): 21885, 2023 12 11.
Artigo em Inglês | MEDLINE | ID: mdl-38081880

RESUMO

Post-transcriptional modifications of RNA play a key role in performing a variety of biological processes, such as stability and immune tolerance, RNA splicing, protein translation and RNA degradation. One of these RNA modifications is m5c which participates in various cellular functions like RNA structural stability and translation efficiency, got popularity among biologists. By applying biological experiments to detect RNA m5c methylation sites would require much more efforts, time and money. Most of the researchers are using pre-processed RNA sequences of 41 nucleotides where the methylated cytosine is in the center. Therefore, it is possible that some of the information around these motif may have lost. The conventional methods are unable to process the RNA sequence directly due to high dimensionality and thus need optimized techniques for better features extraction. To handle the above challenges the goal of this study is to employ an end-to-end, 1D CNN based model to classify and interpret m5c methylated data sites. Moreover, our aim is to analyze the sequence in its full length where the methylated cytosine may not be in the center. The evaluation of the proposed architecture showed a promising results by outperforming state-of-the-art techniques in terms of sensitivity and accuracy. Our model achieve 96.70% sensitivity and 96.21% accuracy for 41 nucleotides sequences while 96.10% accuracy for full length sequences.


Assuntos
Metilação de RNA , RNA , RNA/genética , RNA/metabolismo , Citosina/metabolismo , Nucleotídeos/metabolismo
2.
Curr Med Imaging ; 16(6): 711-719, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32723243

RESUMO

BACKGROUND: In this study, a novel and fully automatic skin disease classification approach is proposed using statistical feature extraction and Artificial Neural Network (ANN) based classification using first and second order statistical moments, the entropy of different color channels and texture-based features. AIMS: The basic aim of our study is to develop an automated system for skin disease classification that can help a general physician to automatically detect the lesion and classify it to disease types. METHOD: The performance of the proposed approach is corroborated by extensive experiments performed on a dataset of 588 images containing 6907 lesion regions. RESULTS: The results show that the proposed methodology can be effectively used to construct a skin disease classification system. CONCLUSION: Our proposed method is designed for a specific skin tone. Future investigation is needed to analyze the impact of different skin tones on the performance of lesions detection and classification system.


Assuntos
Processamento de Imagem Assistida por Computador/métodos , Redes Neurais de Computação , Fotografação , Dermatopatias/classificação , Dermatopatias/diagnóstico , Humanos , Pigmentação da Pele
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