eca-mir-200a: Eca-mir-200a is a microRNA observed in horses, particularly in the context of uterine health and disease [PMC8227551]. In a study focusing on the expression profiles of various microRNAs, eca-mir-200a was found to be significantly overexpressed in both young and old diseased mares when compared to healthy controls [PMC8227551]. This overexpression was more pronounced in old diseased mares, suggesting a potential age-related susceptibility or response to uterine disease [PMC8227551]. The study aimed to explore the expression of eca-mir-200a among other microRNAs and their relationship with inflammatory immune response genes, which are implicated in endometritis [PMC8227551]. While eca-mir-200a is part of a group of microRNAs that target inflammatory immune response genes, the specific genes targeted by eca-mir-200a were not directly linked to TNFα and IL6 in the provided context [PMC8227551]. This is the first study that investigates eca-mir-200a expression profiles during endometritis in mares' serum, highlighting its potential as a biomarker for the disease [PMC8227551]. Additionally, eca-mir-200a has been identified as a regulator of genes such as CDC25A and E2F3 which are crucial for cell cycle regulation [PMC9777602], suggesting its broader role beyond inflammation and potentially linking it to cell proliferation processes during uterine disease.