FOLH1 and pulmonary arterial hypertension: In a related study (Meckel et al. 2025) the authors compared PAH with amino acids for nephroprotection across various radiopharmaceuticals, including [177Lu]Lu-DOTA-RGD, [177Lu]Lu-DOTA-JR11, [177Lu]Lu-DOTA-TATE, [177Lu]Lu-DOTA-TOC, [177Lu]Lu-DOTA-sargastrin, [177Lu]Lu-PSMA-I&T, [177Lu]Lu-PSMA-11, and two recombinant proteins: [177Lu]Lu-DOTA-affiline-22 and [99mTc]Tc-etarfolatide.