The phrase "a valuable agent" is correct and usable in written English.
It can be used to describe someone or something that plays an important role or has significant worth in a particular context, such as business, science, or social interactions.
Example: "In our research, we found that a valuable agent in promoting community health is local leadership."
Alternatives: "an important contributor" or "a key player".
Chromium has a beneficial effect on eating-related atypical symptoms of depression, and may be a valuable agent in treating atypical depression and seasonal affective disorder.
The design world has grasped this idea, and the will of manufacturers to make a difference – by introducing responsible design thinking to all areas of industry – restates the role of the designer as a valuable agent in the world, not merely as a catalyst for consumption and profit.
Nitroprusside remains a valuable agent on a short-term basis in the presence of severe heart failure (because it has no negative inotropic affects).
Cisplatinum may prove to be a valuable agent for the elimination of diseased cells in the bone marrow of patients with neuroblastoma.
Therefore there is an increasing interest to use natural sources which would be a valuable agent for finding the new therapeutic drugs.
Overall, CPTH6 could be a valuable agent for the treatment of cancer and should be further studied as a possible antineoplastic agent.
Streptokinase is a valuable fibrinolytic agent used to cope with myocardial infarction and brain stroke.
In particular, long-term preserved dental follicles could serve as an excellent autologous or allogenic stem cell source for bone tissue regeneration as well as a valuable therapeutic agent for immune diseases.
In addition, cintrofin induced the phosphorylation of STAT3, Akt, and ERK, indicating that it exerts cell signaling properties similar to those induced by CNTF and may be a valuable survival agent with possible therapeutic potential.
Dexmedetomidine may prove to be a valuable adjunctive agent for patients with delirium in the ICU.
PRP has become a valuable adjunctive agent to promote healing in a lot of dental and oral surgery procedures.
