The phrase "altered days" is correct and usable in written English.
It can be used to refer to days that have been changed or modified in some way, often in a metaphorical sense.
Example: "After the incident, we found ourselves living in altered days, where everything felt different and uncertain."
Alternatives: "changed days" or "transformed days".
We headed in for dinner and later to our beds, but our altered day-night cycles drew a colleague and me out at 3 30 a.m., our reward a wonderful sunrise.
Taken together, these studies suggest that extracellular matrix degradation rates are significantly altered within days of the injury and remain altered for years.
Downstairs, find racks of velvet and silk djellabas and caftans, which can be altered within days.
Fifty-four genes were affected at 20 h, whereas, 311 genes were altered 4 days after the start of treatment.
The degradation time of PLGA/PLA can be altered from days to years by varying the polymer molecular weight, the lactic acid to glycolic acid ratio in copolymer.
"Some kids may need school accommodations, changes in school expectations, not taking tests as they're recovering (or) altered school days".
Finally, the organisation of the Xi also seems to become altered between days 4 and 8 of differentiation (Chow et al. 2010) (Figs. 3b, 4b).
Of the 217 zebrafish specific miRNAs on the platform, we found 3 to be significantly altered 3 days after nerve crush (Table 3; all miRNA data provided in the Supporting data).
An examination of meta-flow of GO categories between genes regulated on day 1 and those first altered on day 2 (Fig. 4) suggested a cascade initiated by changes in transcription factors and xenobiotic metabolism genes and leading to genes involved in calcium ion transport, protein metabolism and folding, and transcriptional regulation.
The set of embryonic morphogenesis genes altered on day 2 differed from those of day 1, now coding for proteins involved in other processes such as axon formation and tissue regeneration (cxcr4b, cdh2, robo2, gap43).
