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1.
Annu Int Conf IEEE Eng Med Biol Soc ; 2022: 1634-1637, 2022 07.
Artigo em Inglês | MEDLINE | ID: mdl-36086064

RESUMO

Since the mutation in SARS-COV2 poses new challenges in designing vaccines, it is imperative to develop advanced tools for visualizing the genetic information. Specially, it remains challenging to address the patient-to-patient variability and identify the signature for severe/critical conditions. In this endeavor we analyze the large-scale RNA-sequencing data collected from broncho-alveolar fluid. In this work, we have used PCA and tSNE for the dimension-reduction. The novelty of the current work is to depict a detailed comparison of k-means, HDBSAN and neuro-fuzzy method in visualization of high-dimension data on gene expression. Clinical Relevance- The subpopulation profiling can be used to study the patient-to patient variability when infected by SARS-COV-2 and its variants. The distribution of cell types can be relevant in designing new drugs that are targeted to control the distribution of epithelial cells T cells and macrophages.


Assuntos
COVID-19 , Humanos , Macrófagos , RNA Viral/genética , SARS-CoV-2/genética , Análise de Sequência de RNA
2.
Annu Int Conf IEEE Eng Med Biol Soc ; 2018: 5045-5048, 2018 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-30441474

RESUMO

Calcium spiking can be used for drug screening studies in pharmaceutical industries. However, performing experiments for multiple drugs and doses are highly expensive. The oscillatory behavior of calcium spiking data demonstrates extreme nonlinearity and phase singularity. This makes it more challenging to construct physics-based models for the experimental observations. In this scenario, data based modelling, such as Artificial Neural Networks (ANN), and thereafter the model based prediction of calcium profiles may offer a cost-effective and time saving solution. Therefore, a novel ANN building algorithm is presented in the current work, where data based simultaneous estimation of ANN architecture and nonlinear activation function stands out as the main highlight. The resultant ANN was then used to learn the oscillatory behavior in calcium ion concentration data, obtained from hippocampal neurons of rats by fluorescent labelling and confocal imaging. The paper shows that the novel technique can be used in general for emulating biochemical oscillations (with or without drug injection) and can be implemented to predict the cell-drug responses for intermediated doses. The proposed algorithm can also be used for obtaining high resolution data from low resolution experimental measurements.


Assuntos
Ciência de Dados , Hipocampo/citologia , Redes Neurais de Computação , Neurônios/química , Algoritmos , Animais , Sinalização do Cálcio , Avaliação Pré-Clínica de Medicamentos , Fluorescência , Microscopia Confocal , Ratos
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