Differences of Plasma Levels of Tryptophan, Serotonin, 5-Hydroxyindole Acetic Acid, and Kynurenine between Healthy People and Patients of Major Monopolar Depression at Various Age and Gender  

作　　者：Hiroi Tomioka Junichi Masuda Akikazu Takada Akira Iwanami Hiroi Tomioka;Junichi Masuda;Akikazu Takada;Akira Iwanami(Department of Psychiatry, School of Medicine, Showa University, Tokyo, Japan;Department of Psychiatry, Showa University Northern Yokohama Hospital, Yokohama, Japan;Global Application Development Center, Shimadzu Corporation, Tokyo, Japan;International Projects on Food and Health (NPO), Tokyo, Japan)

机构地区：[1]Department of Psychiatry, School of Medicine, Showa University, Tokyo, Japan [2]Department of Psychiatry, Showa University Northern Yokohama Hospital, Yokohama, Japan [3]Global Application Development Center, Shimadzu Corporation, Tokyo, Japan [4]International Projects on Food and Health (NPO), Tokyo, Japan

出　　处：《Food and Nutrition Sciences》2020年第6期431-441,共11页食品与营养科学（英文）

摘　　要：<b><span style="font-family:Verdana;">Background:</span></b><span style="font-family:""><span style="font-family:Verdana;"> It is not well analyzed whether there are differences in plasma levels of tryptophan (TRP) metabolites between healthy control people (HC) and patients of major monopolar depression (MMD). </span><b><span style="font-family:Verdana;">Methods:</span></b><span style="font-family:Verdana;"> Ultra high-speed </span></span><span style="font-family:""><span style="font-family:Verdana;">liquid chromatography/mass spectrometry has been used for the simultaneous determination of plasma levels of tryptophan metabolites in depressive </span><span><span style="font-family:Verdana;">patients. </span><b><span style="font-family:Verdana;">Results:</span></b><span style="font-family:Verdana;"> There are no significant differences between plasma levels of TRP between HC and MMD. Plasma levels of TRP of HC are higher in young men, young women, old men, and old women in this order. Serotonin (5-HT) levels are higher in MMD than HC. Plasma levels of 5-HIAA of HC are also higher than those of patients of MMD. Plasma levels of kynurenine (KYN) of healthy old men and old women are higher than those of young men and old women. Plasma levels of KYN are higher in old women and young men of MMD than those of HC. </span><b><span style="font-family:Verdana;">Conclusion:</span></b><span style="font-family:Verdana;"> Plasma levels of 5-HT are higher in patients of MMD than those of HC, which may suggest that use of drugs inhibiting the 5-HT transportation may increase plasma levels of 5-HT in MMD.<b><span style="font-family:Verdana;">Background:</span></b><span style="font-family:""><span style="font-family:Verdana;"> It is not well analyzed whether there are differences in plasma levels of tryptophan (TRP) metabolites between healthy control people (HC) and patients of major monopolar depression (MMD). </span><b><span style="font-family:Verdana;">Methods:</span></b><span style="font-family:Verdana;"> Ultra high-speed </span></span><span style="font-family:""><span style="font-family:Verdana;">liquid chromatography/mass spectrometry has been used for the simultaneous determination of plasma levels of tryptophan metabolites in depressive </span><span><span style="font-family:Verdana;">patients. </span><b><span style="font-family:Verdana;">Results:</span></b><span style="font-family:Verdana;"> There are no significant differences between plasma levels of TRP between HC and MMD. Plasma levels of TRP of HC are higher in young men, young women, old men, and old women in this order. Serotonin (5-HT) levels are higher in MMD than HC. Plasma levels of 5-HIAA of HC are also higher than those of patients of MMD. Plasma levels of kynurenine (KYN) of healthy old men and old women are higher than those of young men and old women. Plasma levels of KYN are higher in old women and young men of MMD than those of HC. </span><b><span style="font-family:Verdana;">Conclusion:</span></b><span style="font-family:Verdana;"> Plasma levels of 5-HT are higher in patients of MMD than those of HC, which may suggest that use of drugs inhibiting the 5-HT transportation may increase plasma levels of 5-HT in MMD.

关 键 词：DEPRESSION Monopolar Depression Bipolar Depression TRYPTOPHAN SEROTONIN 5-Hydroxyindole Acetic Acid KYNURENINE 3-Hydroxykynurenine Kynurenic Acid Anthranilic Acid Xanthurenic Acid Indole-3-Acetic Acid SSRI (Selective Serotonin Reuptake Inhibitor) SNRI (Serotonin Norepinephrine Reuptake Inhibitor) 

分 类 号：R74[医药卫生—神经病学与精神病学]