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首页> 外文期刊>Journal of structural chemistry >Structural forms of fluorides in bone tissue of animals under chronic fluoride intoxication
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Structural forms of fluorides in bone tissue of animals under chronic fluoride intoxication

机译：慢性氟化物中毒导致动物骨骼组织中氟化物的结构形式

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摘要

High-resolution solid-state F-19 NMR method has been used to examine the chemical structural forms of fluorine introduced into the bone tissue of experimental animals (Vistar rats) exposed to 30 day fluoride inhalation. It is shown that in the bone tissue three structural forms of fluorides are deposited: a solid phase of F-apatite and mobile nanoparticles of CaF2 and MgF2 (or KMgF3) with the ratio of fluorine concentration in these three forms similar to 2:2:1. During the following 30 day rehabilitation this ratio remains constant, the total fluorine content in the bone tissue decreases similar to 3 times and the F-apatite phase transforms into disordered (F, OH)-apatite. A protective effect of the zeolitic enterosorbent (klinoptilolite) on fluorine binding in the intoxication process was found, as well as the promotional effect of this enterosorbent on fluorine excretion during the postfluoride rehabilitation.
机译：高分辨率固态F-19 NMR方法已用于检查暴露于吸入30天氟化物的实验动物（Vistar大鼠）的骨组织中引入的氟的化学结构形式。结果表明，在骨骼组织中沉积了三种结构形式的氟化物：F-磷灰石的固相和CaF2和MgF2（或KMgF3）的可移动纳米颗粒，这三种形式的氟浓度比与2：2相似： 1。在接下来的30天康复期间，该比率保持恒定，骨骼组织中的总氟含量降低了近3倍，并且F-磷灰石相转变为无序（F，OH）-磷灰石。发现沸石肠溶吸收剂（斜发沸石）对中毒过程中的氟结合有保护作用，以及该肠溶吸收剂对氟化物康复后氟排泄的促进作用。

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