The phrase "a marked regression of" is correct and usable in written English.
It can be used to describe a significant decline or deterioration in a particular condition or situation.
Example: "The study revealed a marked regression of cognitive abilities in the participants after the intervention."
Alternatives: "a significant decline in" or "a noticeable deterioration of".
In the case of the deltaic plains of the Balsas river in Mexico, the construction of El Infiernillo and La Villita hydroelectric plants in 1964 and 1973, respectively, led to a marked regression of the delta as well as several morphodynamic changes in riverine and coastal areas.
At week-12 or week-16, there was a marked regression of liver fibrosis judging by the trichrome stain (Figure 8E) and Sirius red staining (Figure S5).
At the end of 1991, the situation was clinically stable, with a marked regression of the remaining orbital and cerebral lesions.
Using experimental models, these authors showed that the restoration of miR-16 in prostate cancer cells results in growth arrest, apoptosis and in a marked regression of prostate tumor xenografts [ 37].
Strikingly, in both AZD8055- and GDC-0941-treated GDC-0941-treated GDC-0941-treatedon of tumices from days 0 there, wasre they shrunk to ∼40% of their original size.
In this regard, Omuro et al. reported a marked regression of a large pancreatic tumor following allogeneic transplantation, which was attributed to GvT effects due to complete T-cell chimerism before tumor regression [ 31].
Analysis of the peripheral organs (spleen, lung and liver) demonstrated a marked regression or disappearance of infiltrating lymphoma cells.
Orthotopic liver transplantation is currently the only available causative treatment of familial amyloid polyneuropathy and/or cardiomyopathy as it eliminates the production of the variant amyloid precursor protein [ 35] and induces a marked regression (or even disappearance) of amyloid in abdominal fat [ 36].
Tom Segev, a well-known intellectual and author, denounced this as a "marked regression" by a frightened nation that had been on the verge of an era of post-Zionist enlightenment.
After 4 weeks of gefitinib, a CT scan showed a marked regression in the right lung tumor and intracranial disease, Stable disease was noted in the left lung tumor.
Partial response with marked regression of liver metastases and disappearance of several lung metastases occurred within 3 months (Fig. 3c).
