In this study we investigated the cerebrospinal fluid (CSF) concentrations of 5-hydroxyindoleacetic acid (5-HIAA) and homovanillic acid (HVA) in Alzheimer (AD) patients (n=75), patients with mild cognitive impairment (MCI, n=9) and patients with depression (n=7). CSF HVA was significantly elevated in AD with depression (Geriatric Depression Scale, 15 point version GDS>5) in comparison to AD without depression (p<0.05, ANOVA) and CSF HVA showed a significant positive correlation with the GDS score of AD-patients (p=0.03, Spearman Rho: 0.38, Spearman Rank Correlation). In the group of AD patients CSF 5-HIAA was positively correlated with cerebrospinal fluid beta-amyloid 1-42 (Abeta42), p<0.05, Spearman Rho: 0.3, Spearman Rank Correlation, but not with CSF tau. Additionally, there was a significant positive correlation between cerebrospinal fluid 5-HIAA and HVA in the group of AD patients (p<0.0001, Rho: 0.47, Spearman Rank correlation). Neither 5-HIAA nor HVA in CSF could differentiate between mild cognitive impairment, depression and AD. The results of this study support the hypothesis that the serotonergic system plays a role in the course of AD. They further suggest an important role of dopamine metabolism in depression within AD patients.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
Co-evolution of the humoral immune and serotonergic systems in chickens selected for high or low blood antibody titer response to sheep red blood cells.
Poult Sci
December 2024
School of Agriculture and Food Systems, West Virginia University, Morgantown, WV 26506.
Serotonin is a potent immunomodulatory neurohormone. Activities of the serotonergic and immune systems are often reported together in poultry studies with unidirectional analyses focused on serotonergic signaling mediating immune response. Considering serotonin's relevance across a range of immune-related poultry topics, elucidation of whether the immune system affects the serotonergic system can provide valuable insights into the bi-directionality of poultry neuroendocrine-immune interactions.
View Article and Find Full Text PDFBangia fusco-purpurea polysaccharide with ultra-high pressure assisted extraction alleviates dyslipidemia in high-fat diet induced mice.
Int J Biol Macromol
December 2024
College of Ocean Food and Biological Engineering, Jimei University, Xiamen, Fujian 361021, China; Fujian Provincial Key Laboratory of Food Microbiology and Enzyme Engineering, Xiamen, Fujian 361021, China. Electronic address:
Bangia fusco-purpurea polysaccharide (UBFP) with ultra-high pressure assisted extraction has good in vitro hypolipidemic activity. To be explored as a natural hypolipidemic agent, the alleviation effect of UBFP on in vivo dyslipidemia in high-fat diet (HFD) induced mice was further investigated. Compared with native polysaccharide (BFP), UBFP was better to reduce weight gain, fat accumulation, serum and hepatic lipid abnormalities for HFD induced mice.
View Article and Find Full Text PDFZinc(II) organic framework based bifunctional biomarker sensor for efficient detection of urinary 5-Hydroxyindoleacetic acid and serum 3-Nitrotyrosine.
Spectrochim Acta A Mol Biomol Spectrosc
December 2024
School of Chemistry and Chemical Engineering, North University of China, Taiyuan 030051, PR China. Electronic address:
Monitoring biomarker levels in body fluids is of great importance in clinical diagnosis. Herein, a robust 3D ZnMOF, {[Zn(BTPB)(bib)(μ-OH)]·2HO}, was fabricated based on the ligands of 1,4-bis(2,4,6-tricarboxylpyrid-5-yl)benzene (HBTPB) and 1,4-bis(imidazol-1-yl)benzene (bib). On the basis of its stable architecture and intrinsic luminescence, ZnMOF demonstrated remarkable potential as a bifunctional luminescent sensor for selective and sensitive detecting the biomarkers of 3-nitrotyrosine (3-NT) and 5-hydroxyindoleacetic acid (5-HIAA) in water and body fluids by employing distinct "turn-off" and "turn-on" responses.
View Article and Find Full Text PDFMultinuclear Antimony-Bismuth-Lanthanide Cluster-Connected Polyoxometalate for the Detection of 5-Hydroxyindoleacetic Acid via Luminescence.
Inorg Chem
December 2024
Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Molecular Sciences, Henan University, Kaifeng, Henan 475004, China.
The judicious selection and combination of multicomponents provide great potential for the further exploration of new polyoxometalate (POM) materials. Here, a delicate control on tungstate, Sb and Bi sources, Eu ions, and organic molecules led to the discovery of a novel multimetal cluster-embedded POM [HN(CH)]NaH{[Eu(HO)SbBiWO](SbWO)(SbWO)}·78HO (). The polyoxoanion of was constructed from four in situ-formed [SbWO] and [SbWO] building blocks connected by two hexa-metallic [Eu(HO)SbBiWO] clusters, to be a rare member of Sb- and Bi-coexisting POM.
View Article and Find Full Text PDFArticle Synopsis
- The study examines how chronic exposure to digoxin affects locomotor activity and brain chemistry in zebrafish.
- Zebrafish were housed in groups and exposed to 2 μM of digoxin for a week, resulting in increased hyperactivity and decreased anxiety in a novel environment test.
- The findings reveal significant changes in brain monoamine levels, indicating that cardiotonic steroids like digoxin can influence neurotransmission, which might have implications for neuropsychiatric conditions.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!