Is it possible to do an analysis of rna-seq of specific data from dataset or should I do the whole dataset?

Question

[ashwing.kofficial]

hello everyone, I am trying to do Rna-seq of a disease and I have selectively extracted the specific SRA data which I want to analyze.Is it possible to analyze those specific data from a dataset and publish a research article or should I analzye the whole dataset for a comparative analysis. For Eg from the raw dataset SRP158491, I extracted SRR7725764 and many other SRR data from this dataset and did the analysis on it. So should I do the analysis of the entire dataset of SRR7725764 or is it okay to extract specific data and do an analysis on it? I know it's elaborate but it would be of great help to me to get the answer.