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首页> 外文期刊>BMC Neuroscience >In vivo oxygen measurement in cerebrospinal fluid of pigs to determine physiologic and pathophysiologic oxygen values during CNS infections
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In vivo oxygen measurement in cerebrospinal fluid of pigs to determine physiologic and pathophysiologic oxygen values during CNS infections

机译:在猪脑脊液中的体内氧气测量,以确定CNS感染期间的生理和病理生理氧气值

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During infection and inflammation, a reduced oxygen level clearly affects cellular functions. Oxygen levels during CNS infections are unknown. Here we established and evaluated an in vivo measurement system to characterize the oxygen level in parallel with bacterial numbers (CFU/mL), the cell number and pH level inside the CSF of healthy compared to Streptococcus suis-infected pigs. The animals were anesthetized over a seven-hour period with isoflurane in air/oxygen at physiologic arterial partial pressure of oxygen. Oxygen levels in CSF of anesthetized pigs were compared to euthanized pigs. The detected partial pressure of oxygen in the CSF remained constant in a range of 47–63?mmHg, independent of the infection status (bacterial or cell number). In contrast, the pH value showed a slight drop during infection, which correlated with cell and bacterial number in CSF. We present physiologic oxygen and pH values in CSF during the onset of bacterial meningitis.
机译:在感染和炎症期间,降低的氧气水平显然会影响细胞功能。 CNS感染期间的氧气水平未知。 在这里,我们在体内测量系统中建立和评估,以与细菌数(CFU / mL)平行的氧气水平,与链球菌感染的猪相比,CSF的CSF内的细胞数和pH水平。 将动物在空气/氧气中在氧气/氧气的空气/氧气中麻醉,在氧气的空气/氧气中麻醉。 将麻醉猪的CSF中的氧水平与安乐死的猪进行比较。 在CSF中检测到的氧的氧的分压在47-63Ω·mmHg的范围内恒定,与感染状态(细菌或细胞数)无关。 相反,pH值显示在感染期间略有下降,与CSF中的细胞和细菌数相关。 在细菌性脑膜炎发作期间,我们在CSF中呈现生理氧和pH值。

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