In Parkinson’s disease, there is a predominant loss of dopaminergic neurons primarily in
bioenergetics and thermodynamics analysis shows internal energy, enthalpy and pressure-volume work describe evaporation and combustion. Consequently substantia nigra emerges as the valid choice since it satisfies first law and physiological energetics, aligning with established principles in physiology and thermodynamics literature.
Ref: Atkins and de Paula, Physical Chemistry, 11th Edition, Chapter 2, First Law, explains internal energy, enthalpy, work, heat and energy changes in chemical reactions like ethanol combustion providing thermodynamic foundation.
