No, Cagrilintide and Retatrutide are different peptides
The authors point out that other classes of drugs, including those treating erectile dysfunction and an anti-arrythmic drug, have previously been found to cause NAION in some patients
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CHAC1 further exacerbates cellular stress by degrading GSH, intensifying oxidative damage and ultimately driving ferroptotic cell death (Figure 5) ( FIGURE 5 While the eIF2K3/PERK-eIF2-ATF4 cascade, another branch of the ISR, can modulate ferroptosis in the context of ER stress, cysteine deprivation selectively activates GCN2 rather than PERK, highlighting distinct regulatory mechanisms ( Cysteine starvation triggers mitochondrial fragmentation, impairs mitochondrial function and leads to the accumulation of ROS ( CHAC1 is upregulated through the ATF4-dependent ISR pathway, where it degrades GSH to liberate cysteine needed for the synthesis of Fe-S cluster proteins (Ward et al., 2024)

NICE technology appraisal TA875 (2023) recommends semaglutide 2.4 mg (Wegovy) as an adjunct to a reduced-calorie diet and increased physical activity for adults with a BMI of 35 kg/m or above (or 3034.9 kg/m in certain circumstances) alongside at least one weight-related comorbidity, when initiated within specialist weight management services