The aforementioned reasons could account for the significant amendment in the expression configuration of immune (TLR4, TLR7, TNF-α, IL10, NCF4, and LITAF), antioxidant (ATOX1, GST, and OXSR1), and erythritol-related (TKT, RPIA, and AMPD1) indicators in endometritis-affected cows. Here, TLR4 is linked to endometritis.