HPLC receptorassay of opioid peptides in the cerebrospinal fluid of lower back pain patients.

HPLC receptorassay of opioid peptides in the cerebrospinal fluid of lower back pain patients.
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腰痛患者脑脊液中阿片肽的 HPLC 受体测定。

DOI:
10.1002/bmc.1130020202
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发表时间:
1987
期刊:
Biomedical chromatography : BMC
影响因子:
--
通讯作者:
Pagidipati,D
Pagidipati,D
中科院分区:
--
文献类型:
--
作者:
Desiderio,DM;Onishi,H;Fridland,G;Wood,G;Pagidipati,D

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在经历腰痛的患者中测量人脑脊液中的总阿片肽受体活性。从C18 Sep - Pak中洗脱脱盐的脑脊液,并进行放射性受体测定(RRA),使用氚化etorphin,这是一种能被来自几种不同类型阿片受体的阿片有效取代的配体。三个临床组的内源性蛋氨酸脑啡肽当量为2.4、4.5和6.4 pmol / mL CSF,差异显著。这三个水平表明,更多的阿片活性与减轻患者疼痛感知的药物量有关。当总阿片含量超过经验阈值时,用梯度反相高效液相色谱进一步对样品进行分离,并测量每个HPLC部分中的阿片受体活性,以确定患者脑脊液中存在的受体活性阿片肽的特征模式。不同临床类型的HPLC RRA模式不同。对这两组不同数据的一种可能解释是,在这一特定患者群体中,病变存在于一个或几个阿片肽能系统(代谢、受体)中。
Total opioid peptide receptoractivity in human cerebrospinal fluid is measured in patients who are experiencing lower back pain. Desalted CSF is eluted from a C18 Sep‐Pak and is subjected to a radioreceptorassay (RRA) that employs tritiated etorphin, which is aligand that is effectively displaced by opioids from several different types of opioid receptors. Three clinical groups have significantly different endogenous levels of 2.4, 4.5, and 6.4 pmol of methionine enkephalin‐equivalents per mL CSF. Those three levels indicate that more opioid activity is correlated with the amount of drug to relieve the patient's perception of pain. When the total opioid content exceeds an empirical threshold, the sample is further fractionated with gradient reversed phase HPLC, and the opioid receptoractivity in each HPLC fraction is measured to determine the characteristics pattern of those receptoractive opioid peptides present in that patient's CSF. Different HPLC RRA patterns are found for different clinical categories. A possible interpretation of these two different sets of data‐is that a lesion exists in one or several of the opioid peptidergic systems (metabolism, receptors) in this particular patient population.
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