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]
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 +4 more sources
Enhancing immunotherapy efficacy in NSCLC through the combined use of phenelzine and Akkermansia muciniphila to regulate gut microbial metabolite 5-HIAA [PDF]
Background Improving the efficacy of anti-programmed death 1 (PD-1) monoclonal antibody (mAb) therapy remains a major challenge for cancer immunotherapy in non-small cell lung cancer (NSCLC). Gut microbial metabolites can influence immunotherapy efficacy.
Jie Zhao +18 more
doaj +4 more sources
Biomarker of urinary 5-HIAA as a valuable predictor of acute appendicitis [PDF]
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 +3 more sources
5-HIAA induces neprilysin to ameliorate pathophysiology and symptoms in a mouse model for Alzheimer’s disease [PDF]
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
Low CSF 5-HIAA in Myoclonus Dystonia. [PDF]
Peall KJ +7 more
europepmc +7 more sources
Measurement of urinary 5-HIAA: correlation between spot versus 24-h urine collection [PDF]
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
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]
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
Elevated Cerebrospinal fluid 5-hydroxyindoleacetic acid in Macaques Following Early Life Stress (ELS) and Inverse Association with Hippocampal Volume: Preliminary Implications for Serotonin-Related Function in Mood and Anxiety Disorders [PDF]
Background: Early life stress (ELS) is cited as a risk for mood and anxiety disorders, potentially through altered serotonin neurotransmission. We examined the effects of ELS, utilizing the variable foraging demand (VFD) macaque model, on adolescent ...
Jeremy D Coplan +14 more
doaj +4 more sources
GPR35 promotes neutrophil recruitment in response to serotonin metabolite 5-HIAA. [PDF]
De Giovanni M +5 more
europepmc +6 more sources
The diagnostic utility of urinary 5-HIAA and leucine-rich alpha-2 glycoprotein in acute appendicitis: a narrative review [PDF]
BackgroundAcute appendicitis (AA) remains diagnostically challenging despite its global prevalence. Current methods rely on clinical scoring systems (e.g., Alvarado score) and imaging (US, CT, and MRI). Urinary biomarkers like 5-hydroxyindoleacetic acid (
Yahiya Baig +2 more
doaj +2 more sources

