In African American type 2 diabetic patients, is vitamin D deficiency associated with lower blood levels of hydrogen sulfide and cyclic adenosine monophosphate, and elevated oxidative stress?

在非裔美国 2 型糖尿病患者中，维生素 D 缺乏是否与血液中硫化氢和环磷酸腺苷的含量降低以及氧化应激升高有关？