Assessment Of Multiple Analytes In Women w/ Osteoporosis

绝经前和绝经后妇女的骨丢失是一种严重的临床状况，影响相当大比例的公众。抑郁症是一种复合性疾病，已被证明会加重导致骨质流失的途径，并暗示身心联系。在NIH临床中心进行的POWER研究旨在研究绝经前妇女抑郁症和骨质疏松症严重程度的相互作用。DBEPS超微分析免疫化学资源已着手开发一组分析技术（再循环免疫亲和色谱[RIC];免疫亲和微阵列;免疫亲和毛细管电泳[ICE]），以研究可能参与骨质疏松症和抑郁症之间联系的许多不同的系统途径。正常和抑郁年龄匹配的妇女队列已被招募到研究中，双盲和分析后的代码打破。在三种情况下采集样品，在此期间采集24个一小时样品并分析45种不同的分析物。虽然样本分析现已成功完成，但由于生成的数据点数量极大，数据分析仍在进行中。初步检查的数据表明，昼夜节律的许多不同的细胞因子和生长因子的测量。数据还表明，抑郁症患者可以根据其分析物模式分为两组。初步分析表明，疼痛相关神经肽的存在与骨密度的变化之间有很强的相关性。

Bone loss in women pre- and post-menopause is a serious clinical condition affecting a reasonably large proportion of the public. Depression is a compounding condition that has been shown to accentuate pathways leading to bone loss and suggesting a mind-body connection. The POWER study conducted at the NIH Clinical Center is designed to study the interactions of depression and severity of osteoporosis in pre-menopausal women. The DBEPS Ultramicro Analytical Immunochemistry Resource has undertaken to develop a panel of analytical techniques (recycling immunoaffinity chromatography [RIC]; immunoaffinity microarrays; immunoaffinity capillary electrophoresis [ICE]) to study a number of different systemic pathways that possibly may be involved in the connection between osteoporosis and depression. Cohorts of both normal and depressed age-matched women have been recruited into the study, double-blinded and the codes broken after the analyses. Samples were taken on three occasions during which 24 one-hour samples were taken and analyzed for 45 different analytes. Although the sample analyses have now been successfully completed, the data analysis is still in progress due to the extremely large number of data points generated. Preliminary examination of the data has indicated circadian rhythms for many of the different cytokines and growth factors measured. The data also indicates that the depressed individuals can be classified into two groups according to their analyte patterns. Preliminary analysis has indicated a strong correlation between the presence of pain-associated neuropeptides and changes in bone density.