Sent_en: 2zh Because prolactin regulates the levels of precursors of oligodendrocytes, the scientists hypothesized that prolactin levels were responsible for the differences in damage.
Sent_yy: 因为催乳素调节少突胶质细胞的前体水平，科学家们假设催乳素水平是造成损伤差异的原因。