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The Role of Serum 5-HIAA as a Predictor of Progression and an Alternative to 24-h Urine 5-HIAA in Well-Differentiated Neuroendocrine Neoplasms [PDF]

open access: goldBiology, 2021
Our aim was to investigate the clinical utility of serum 5HIAA for disease surveillance and diagnostic purposes in a cohort of patients with well-differentiated neuroendocrine neoplasms (WD-NENs).
Maria Wedin   +4 more
doaj   +7 more sources

Biomarker of urinary 5-HIAA as a valuable predictor of acute appendicitis [PDF]

open access: goldPractical Laboratory Medicine, 2021
Background: Serotonin-containing cells are abundantly found in the appendix. Studies have shown that acute appendicitis is likely to be characterized by altered urinary 5-hydroxyindole acetic acid (5-HIAA), an active serotonin metabolite. The aim of this
Leila Haji Maghsoudi   +4 more
doaj   +6 more sources

Systemic Regulation of RAS/MAPK Signaling by the Serotonin Metabolite 5-HIAA. [PDF]

open access: goldPLoS Genetics, 2015
Human cancer is caused by the interplay of mutations in oncogenes and tumor suppressor genes and inherited variations in cancer susceptibility genes. While many of the tumor initiating mutations are well characterized, the effect of genetic background ...
Tobias Schmid   +5 more
doaj   +9 more sources

5-HIAA induces neprilysin to ameliorate pathophysiology and symptoms in a mouse model for Alzheimer’s disease [PDF]

open access: goldActa Neuropathologica Communications, 2018
Serotoninergic activation which decreases brain Aβ peptides is considered beneficial in mouse models for Alzheimer’s disease (AD), but the mechanisms involved remain unclear.
Christian Klein   +6 more
doaj   +4 more sources

5-HIAA as a Potential Biological Marker for Neurological and Psychiatric Disorders. [PDF]

open access: diamondAdv Pharm Bull, 2019
Neurological and psychiatric disorders occur in about 6 percent of the global population indicating a significant amount of people suffering from neurological disorder on a varying range in day to day life. On an extensive view, there is a critical requirement for the development of an alternative biomarker for these conditions.
Jayamohananan H, Manoj Kumar MK, T P A.
europepmc   +6 more sources

Gender-Specific Effect of 5-HT and 5-HIAA on Threshold Level of Behavioral Symptoms and Sex-Bias in Prevalence of Autism Spectrum Disorder [PDF]

open access: yesFrontiers in Neuroscience, 2020
Platelet hyperserotonemia in a subset of Autism Spectrum Disorder (ASD) probands, efficacy of selective serotonin reuptake inhibitors (SSRIs) in reducing behavioral deficits and gender-bias in normal serotonin (5-hydroxy tryptamine or 5-HT) synthesis ...
Barnali Chakraborti   +13 more
doaj   +2 more sources

Measurement of urinary 5-HIAA: correlation between spot versus 24-h urine collection [PDF]

open access: yesEndocrine Connections, 2019
Background: The 24-h urinary output of 5-hydroxyindoleacetic acid (5-HIAA) is used to monitor disease progression and treatment responses of neuroendocrine neoplasms (NENs).
Matilde Calanchini   +5 more
doaj   +2 more sources

5-hydroxyindolacetic acid (5-HIAA), a main metabolite of serotonin, is responsible for complete Freund's adjuvant-induced thermal hyperalgesia in mice [PDF]

open access: goldMolecular Pain, 2011
Background The role of serotonin (5-hydroxytrptamine, 5-HT) in the modulation of pain has been widely studied. Previous work led to the hypothesis that 5-hydroxyindolacetic acid (5-HIAA), a main metabolite of serotonin, might by itself influence pain ...
Moessner Rainald   +5 more
doaj   +2 more sources

Transient elevation of serum 5-HIAA by dietary serotonin and distribution of 5-HIAA in serum protein fractions [PDF]

open access: bronzeAnnals of Clinical Biochemistry: International Journal of Laboratory Medicine, 2014
Introduction Dietary serotonin increases urinary secretion of 5-HIAA. A falsely elevated 5-HIAA may lead to incorrect suspicion of a neuroendocrine tumour. Therefore, we determined the effect and duration of dietary serotonin on serum 5-HIAA concentration. We also studied the distribution of 5-HIAA in serum fractions. Methods We used serum samples from
Niina Tohmola   +5 more
openalex   +4 more sources

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