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首页> 外文期刊>Undersea and Hyperbaric Medicine: Journal of the Undersea and Hyperbaric Medical Society >Bubble reduction after decompression in the prawn Palaemon elegans by pretreatment with hyperbaric oxygen.
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Bubble reduction after decompression in the prawn Palaemon elegans by pretreatment with hyperbaric oxygen.

机译：泡沫减少减压后虾通过预处理与高压Palaemon线虫氧气。

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摘要

On the theory that bubbles originate from preexisting micronuclei, we previously demonstrated that pretreatment with hyperbaric O2 (HBO2) reduced the number of bubbles in the prawn decompressed from 203 kPa. In the present study, we examined the effect of two HBO2 pretreatment pressures (405 and 709 kPa) on prawns decompressed from a range of pressures between 203-810 kPa. Prawns from the experimental groups were pretreated with O2 at 405 or 709 kPa for 5 min (series A and series B, respectively). Prawns from the control groups were exposed only to air. Following pretreatment, prawns were exposed to air at the desired pressure until saturated with nitrogen, then subjected to rapid decompression and examined under a light microscope. Series A: HBO2 pretreatment at 405 kPa for 5 min significantly reduced the number of bubbles after decompression from 203, 304 and 405 kPa (p < 0.05). The total volume of accumulated gas was not affected by HBO2. Series B: Pretreatment with HBO2 at 709 kPa significantly reduced the number of bubbles after decompression from 203, 304, 507 and 608 kPa (p < 0.05). Total gas volume after decompression from 507 and 608 kPa was reduced as a result of pretreatment with O2. This study demonstrates that HBO2 pretreatment at 405 kPa is sufficient to reduce the number of bubbles that will emerge on decompression from several levels of compression.
机译：泡沫的理论来源于先前存在的微核,我们之前表明,预处理与高压氧气(HBO2)减少泡沫的虾从203年kPa解压。我们检查了两个HBO2预处理的效果压力(405和709 kPa)虾解压缩之间的压力范围203 - 810 kPa。使用氧气在405或709 kPa 5分钟(系列A和B分别)。对照组只暴露在空气中。预处理后,虾被暴露直到饱和空气所需的压力氮,然后进行快速减压和光学显微镜下检查。HBO2预处理在405 kPa 5分钟显著降低泡沫后的数量减压从203年、304年和405年kPa (p <0.05)。不会因为HBO2而受到影响。HBO2 709 kPa数量显著减少减压后的泡沫从203、304、507和608 kPa (p < 0.05)。从507年和608 kPa减少减压预处理与O2的结果。表明在405 kPa HBO2预处理足以减少气泡的数量将会出现在减压从几个层面的压缩。

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