The phrase "altered by both" is correct and usable in written English.
You can use it when discussing changes or modifications made by two entities or factors.
Example: "The final design was altered by both the client and the design team to better meet the project requirements."
Alternatives: "modified by both" or "changed by both".
Metabolite profile was altered by both [CO2] and physiological age.
Milk fatty acid composition was altered by both forage level and EF supplementation.
Milk fatty acid composition was altered by both grain source and EF supplementation.
Altogether, the evidence points to the mPFC as a critical node in the addiction neurocircuitry that is altered by both acute and chronic drug use.
Superoxide dismutase (Sod1) and ceruloplasmin protein were found to be altered by both iron and CuD, whereas CCS and CCS/Sod1 ratio were found to only be altered only in CuD rats and, importantly, after only 1 week of treatment.
Our study showed that occurrence was negatively affected only by habitat availability at the largest spatial scale whereas the both physiological state indicators studied at the population scale are significantly altered by both habitat availability and fragmentation at the finest spatial scale.
Accordingly, the B-cell receptor signaling pathway was significantly altered by DEX (both doses), DES (both doses), and CPS (high dose), with more than one-half of the altered genes, including receptor B220/Ptprc, down-regulated.
The competitive landscape has been altered by transactions both expected and stunning, some of them involving the game's most coveted players — the quarterbacks.
Several factors that were altered by fasting in both LWS and HWS were structural in nature.
It should be noted that this was the only gene altered by castration in both the prostate and tumor.
The distributions of several genera were systematically altered by smoking in both the oro- and nasopharynx, and there was an enrichment of anaerobic lineages associated with periodontal disease in the oropharynx.
