The phrase "significant amelioration" is correct and can be used in written English.
You can use it to refer to a marked improvement in a condition or situation. For example, "The introduction of the new policy led to a significant amelioration of the issue."
No significant amelioration in QoL was found over time.
These histological effects correlated as well with the morphometric and biochemical results that showed significant amelioration of these attributes.
Moreover, the ST2−/− mice showed a significant amelioration of limb use and heat hyperalgesia compared to wild-type mice.
In epileptic rats injected with FK-506 or CsA, signs of significant amelioration of the course of epilepsy accompanied by longer survival periods were observed.
injected with an HSV-1-derived vector containing the gene of the anti-inflammatory cytokine IL-4 showed a significant amelioration of clinical and pathological EAE signs.
Immunohistochemistry of heart and kidney tissue revealed significant amelioration of degenerative CVD and glomerulonephritis in the majority of W/BF1 recipients of marrow transplants from B6C3/F1 donors.
Surgical resection of this pancreatic tumor was followed by significant amelioration of acromegalic signs and normalization of GHRH and GH levels.
The results prove that our hardware architecture can be implemented in the recent FPGA devices with a significant amelioration of its performances in terms of throughput and logic area cost.
Despite the promising preclinical data, large cohort clinical studies in humans failed to show a significant amelioration in cardiac function upon systemic injection of EPO in patients with myocardial infarctions.
Y-27632 prolonged 1-week animal survival from 25% of untreated animals to 75% accompanied with significant amelioration of hepatic tissue blood flow, liver function tests and histological architecture without any adverse effects on systemic hemodynamics.
Oral administration of DiMC (80 mg/kg BW) to As intoxicated rats showed a significant amelioration in the levels of serum hepatic markers, pro-inflammatory cytokines and the expression of NADPH oxidase subunits (Nox2, Nox4, and p47phox) in liver.
