The phrase "are deeply altered" is correct and usable in written English.
It can be used to describe a significant change or transformation that has occurred to something or someone.
Example: "The landscape has been so heavily developed that the natural habitats are deeply altered, affecting local wildlife."
Alternatives: "are profoundly changed" or "have been significantly modified."
As it stands now, Brock's life has been deeply altered forever by the events of Jan 17th and 18th.
The Syrian capital has been deeply altered by the country's civil war, now in its third year.
"But she was deeply altered by the war, and as well as her search for love there is also a lot of seeking what we might now call 'mindfulness'; a spiritual quest with even a Buddhist element".
Though it was deeply altered by the war, Britain in the 1950s was a stolidly cohesive society based on old-fashioned industrialism.
In ischemic cardiomyopathy, the extracellular matrix is deeply altered; therefore, it could be important to associate a procedure aiming at regenerating myocardial cells and restoring the extracellular matrix function.
The structure of the dinocyst community has thus been deeply altered, accompanied by an unprecedented increase of Alexandrium minutum toxic form at the same period, as confirmed by the genetic quantification.
As it stands now, Brock's life has been deeply altered forever by the events (raping an unconscious woman) of Jan 17th and 18th.
If his life has been "deeply altered" it is because he has horribly altered another human being; because he made a reprehensible choice to take advantage of someone for his own pleasure.
In the letter, which was written in advance of Turner's sentencing, Dan Turner writes about the many ways in which his son's life has been "deeply altered forever" over what he terms "20 minutes of action".
Indeed, it has been shown that insulin not only regulates this pathway [36] but also that, in the presence of insulin resistance, electron transport chain can be deeply altered [37], [38].
