其他中生化检验检测

From each patient one biopsy was thawed. The thawed tissue was cut into two comparable parts and the wet weight of both parts was measured. Both parts were dried overnight at 100?C, after which they were weighed again in order to measure dry weights. One part was dissolved in nitric acid and consequentially diluted, and sodium content of this solution was measured by way of flame spectrometry. The other part was ashed to measure nitrogen via thermal conduction (Dumatherm Nitrogen/Protein analyzer, C. Gerhardt). Nitrogen content of the ashed biopsies was measured as a parameter for protein content of the tissue. This protein content was used to correct for subcutaneous fat, since the assumption was that sodium is stored in skin instead of in fat, and protein is largely absent from fat tissue. Sodium content of the skin is expressed as mmol sodium per mg dry weight or per mg protein. 从每个患者中解冻一个活检。将解冻的组织切割成两个可比较的部分，并测量两个部分的湿重。两个部分在100摄氏度干燥过夜，之后再次称重以测量干重。将一部分溶解在硝酸中并随后稀释，并且通过火焰光谱法测量该溶液的钠含量。另一部分用于通过热传导测量氮（格哈特公司 杜马森Dumatherm燃烧法全自动氮/蛋白质测定仪）。测量灰化后的活检的氮含量作为组织蛋白质含量的参数。这种蛋白质含量用于皮下脂肪，因为假设钠储存在皮肤中而不是脂肪中，并且脂肪组织中基本上不存在蛋白质。皮肤的钠含量表示为每mg干重或每mg蛋白质的mmol钠。

腺苷（Adenosine， AD）即腺嘌呤核苷，是机体RNA的代谢产物，属于生物小分子化合物，它是一种内源性核苷，能参与血管神经舒张活动，具有抗心律失常的功效。在中枢神经系统中，它对神经传递的调节及对抵抗缺血性与疾病性神经伤害等方面具有重要作用。 2020年版《中国药典》中新增了腺苷及腺苷注射液，腺苷含量的测定依据电位滴定法（通则0701），冰醋酸作溶剂，用高氯酸标准滴定溶液滴定至终点。

北京易科泰提供的高分辨率能量代谢测量系统，主要由呼吸代谢测量仪、无铅微型植入式温度（心率）自动记录仪（监测核心体温或体表温度）、Thermal-RGB红外热成像、以及RF-O2荧光光纤血氧测量单元等组成，可用于各种模型动物的体温与呼吸代谢功能监测与评估，助力于传染病学、病毒学、生理学、转化医学、内分泌学、细胞代谢、以及常见慢性病等生物医学科学研究。