Brown J E, Hidalgo R J, Jones E W, Boyle C R
Am J Vet Res. 1986 Jan;47(1):158-62.
Magnesium (Mg) concentrations in plasma, serum, and erythrocytes (RBC) of calves subjected to splenectomy (SP), splenectomy-induced eperythrozoonosis (EP), and experimentally induced anaplasmosis (AN) were determined and compared with pre-SP, pre-EP, and pre-AN values. Mean serum and plasma Mg concentrations varied in parallel through most periods of the trial. Both were highest after SP, but neither value was significantly different from the pre-SP concentrations. Mean serum and plasma Mg values varied inversely with mean RBC values after SP and EP. Mean RBC Mg values increased significantly from previous periods during EP and AN and after AN, with the values after AN being significantly higher than those at all other periods. Mean plasma, serum, and RBC Mg concentrations were correlated to both mean percentage of parasitemia (%P) and packed-cell volume (PCV). The RBC Mg values increased significantly after mean %P reached 20 and the PCV began to decrease. There was evidence for a distinct lag variation in increasing RBC Mg concentrations with respect to both mean %P and PCV during AN. A strong correlation was observed between the RBC Mg values and the %P occurring 5 days previously and the PCV occurring 3 days previously.
测定了接受脾切除术（SP）、脾切除术后诱发附红细胞体病（EP）和实验性诱发无浆体病（AN）的犊牛血浆、血清和红细胞（RBC）中的镁（Mg）浓度，并与脾切除术前、附红细胞体病前和无浆体病前的值进行比较。在试验的大部分时间里，血清和血浆镁的平均浓度呈平行变化。两者在脾切除术后最高，但均与脾切除术前浓度无显著差异。脾切除术后和附红细胞体病后，血清和血浆镁的平均浓度与红细胞平均浓度呈反向变化。在附红细胞体病和无浆体病期间以及无浆体病后，红细胞镁的平均浓度较前一时期显著升高，无浆体病后的浓度显著高于所有其他时期。血浆、血清和红细胞镁的平均浓度与寄生虫血症平均百分比（%P）和红细胞压积（PCV）均相关。平均%P达到20且PCV开始下降后，红细胞镁值显著升高。有证据表明，在无浆体病期间，红细胞镁浓度相对于平均%P和PCV的增加存在明显的滞后变化。观察到红细胞镁值与5天前的%P和3天前的PCV之间存在强相关性。
