Upvote:1
Assuming your mother sponsored your UAE visa as a resident and not as a financial sponsor this shouldn’t be a problem. You can explain the specific circumstances in the ‘Additional information’ section at the end of the application and/or in your covering letter. Providing proof that your mother is dependent on you will help, for example her age, evidence she lives with you, proof that you give her a regular allowance etc.
You’ve recently been refused a Schengen visa Schengen Visa from Greece was rejected and in that question you state that you have no previous travel history. That combination of circumstances is possibly not advantageous to your UK visa application.