Final answer:
Lithium salts are indeed effective for the treatment of bipolar disorders, which is a fact well-documented in psychiatric medicine.
Step-by-step explanation:
It is true that lithium salts have proven to be very effective in the treatment of bipolar disorders. Lithium's mood-stabilizing properties help to alleviate the extreme mood swings associated with this condition.
While your reference mentions the use of lithium salts such as lithium chloride or lithium acetate in the transformation of yeast cells of Saccharomyces cerevisiae, this is a separate application of lithium in laboratory research.
However, the effectiveness of lithium in medical treatments, particularly for bipolar disorders, is well-documented in psychiatric medicine.