Does anyone know of any studies that look at whether Adipocyte / Visceral Fat cells actually die (apoptosis) and not be replenished after sustained weight loss?

I know the current studies / CW show that the lipids inside the fat cells shrink in size but that adults keep the same number of cells. (Which still keep producing hormones).

We know that IMF can induce autophagy in inefficient cells and free amino acids, but is there anything similar on the fat cell front.