The phrase "altered early" is correct and usable in written English.
It can be used to describe something that has been changed or modified at an early stage or point in time.
Example: "The design was altered early in the development process to better meet user needs."
Alternatives: "modified at an early stage" or "changed early on".
My vision of a firefighter's life was altered early on by the tasks we must complete daily.
Although they are altered, early photographs indicate that they had delicate little brackets under the peaked gables.
They're looking for a contender, just as the Democrats were eight years ago, when debates and primaries altered early perceptions that Clinton, or possibly Edwards, was bound to win.
With rapid prototyping flaws in the design can be detected quickly and easily altered early in the production cycle.
Left ventricle longitudinal peak systolic strain was altered early in patients who secondarily deteriorated their left ventricle ejection fraction.
Speckle tracking-derived strain was altered early in patients who secondarily deteriorated their left ventricle ejection fraction.
Stanford and Yale have altered early-admission programs, partly out of a concern that they give an unfair advantage to students who do not need to compare financial-aid offers before they can commit to a college.
All peripheral indexes were influenced by the decreased blood flow, but the fCO2 gap and the fLACT gap were altered earlier; these indexes could potentially be useful to detect tissue hypoperfusion during sepsis.
It is very likely that polyamines and their metabolites are also altered earlier.
We were particularly interested in identifying the links in which one gene was altered earlier than the other.
This finding shows that Doppler tissue imaging is a useful tool for the assessment of systolic function in this model of diabetic myocardial disease and is altered earlier than the standard indices of global systolic function.
