The phrase "alterations existed" is correct and usable in written English.
It can be used when discussing changes or modifications that were present in a particular context or situation.
Example: "In the historical records, it was noted that several alterations existed in the original manuscript."
Alternatives: "changes were present" or "modifications were made."
To determine whether disease severity-related alterations existed, we also evaluated altered whole-brain connectivity patterns between the NC and MCI, MCI and AD, and NC and AD groups.
We also examined whether the same H3K9Ac alterations existed in two pairs of cumulus cell-derived cloned mouse and parental donor pairs.
There are three major possible explanations for this finding: the workers with pain had relatively low severity of myalgia, metabolic alterations preceded detectable alterations in levels of algesics, or peripheral sensitization and other muscle alterations existed in TM.
We posit that brain region- and cell type-specific alterations exist in mGluR5 in schizophrenia and depression, with evidence pointing towards altered regulation of this receptor in psychiatric pathology.
Whether metastasis-specific genetic alterations exist remains controversial.
For example, promoter hypermethylation has been detected in non-progressed adenomas in which no chromosomal alterations exist (Derks et al. 2006), suggesting that early epigenetic events contribute to gene expression changes during tumor progression.
The present study aimed to examine whether these alterations exist in individuals recovered from the illness.
This suggests that organ-specific alterations exist as well in hrHPV-positive HNSCCs and CxSCCs.
In addition, a heterogeneity in corneocyte alterations exists among solvents and between distinct body sites.
This indicates that cardiovascular alterations exist in GDM which are not detected during routine screening.
In swine no reference values for thoracal skin temperatures in pigs with inflammatory lung alterations exist up to now.
