In a study by Younan et al. [15] on Egyptian AML patients using real-time quantitative RT-PCR, it was revealed that NRP-1 was expressed in 95% of AML cases with levels higher in patients than controls, and there was a statistically significant difference in NRP-1 levels between patients who went into complete remission and those who did not. Here, NRP1 is linked to acute myeloid leukemia.