The mucosal content of 5-hydroxytryptamine (5-HT) and norepinephrine (NE) in different parts of the human gastrointestinal tract has been studied. Peroperative biopsies of normal mucosa were collected during various gastrointestinal operations. The amines were extracted and assayed by liquid chromatography with electrochemical detection (LCEC). The concentration of 5-HT was generally approximately 12 times higher than the NE concentration and the highest concentration for both amines was observed in the duodenum, 14 micrograms/g and 1.5 micrograms/g wet weight for 5-HT and NE respectively.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
Artificial Intelligence-Powered Human Epidermal Growth Factor Receptor 2 and Tumor Microenvironment Analysis in Human Epidermal Growth Factor Receptor 2-Amplified Metastatic Colorectal Cancer: Exploratory Analysis of Phase II TRIUMPH Trial.
JCO Precis Oncol
January 2025
Translational Research Support Office, National Cancer Center Hospital East, Chiba, Japan.
Purpose: Human epidermal growth factor receptor 2 (HER2)-targeted therapies have shown promise in treating -amplified metastatic colorectal cancer (mCRC). Identifying optimal biomarkers for treatment decisions remains challenging. This study explores the potential of artificial intelligence (AI) in predicting treatment responses to trastuzumab plus pertuzumab (TP) in patients with -amplified mCRC from the phase II TRIUMPH trial.
View Article and Find Full Text PDFInverse association of oxidative balance score with depression and specific depressive symptoms among cancer population: Insights from the NHANES (2005-2020).
PLoS One
January 2025
Department of General Practice, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China.
Background: The rising prevalence of depression among cancer patients is alarming. This study examines the relationship between the Oxidative Balance Score (OBS)-a composite measure of dietary and lifestyle factors-and depression, including specific depressive symptoms in this population.
Methods: Data were analyzed from 3,280 adult cancer patients collected in NHANES from 2005-2020.
Is reflux hypersensitivity truly a functional gastrointestinal disorder? A retrospective cross-sectional study.
PLoS One
January 2025
Department of Gastroenterology, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.
Background: According to Rome IV, reflux hypersensitivity (RH) represents a novel form of functional esophageal disorder. This study was designed to compare the clinical features of three types of endoscopic-negative heartburn: RH, nonerosive reflux disease (NERD), and functional heartburn (FH).
Methods: Patients with heartburn in a medical center from 01/01/2017 to 10/31/2021 were included.
The MIR181A2HG/miR-5680/VCAN-CD44 Axis Regulates Gastric Cancer Lymph Node Metastasis by Promoting M2 Macrophage Polarization.
Cancer Med
January 2025
Department of Gastrointestinal Surgery, Affiliated Hospital and Medical School of Nantong University, Nantong, China.
Background: Lymphatic metastasis in gastric cancer (GC) profoundly influences its prognosis, but the precise mechanism remains elusive. In this study, we identified the long noncoding RNA MIR181A2HG as being upregulated in GC and associated with LNs metastasis and prognosis.
Methods: The expression of MIR181A2HG in GC was identified through bioinformatics screening analysis and qRT-PCR validation.
NET Models Meeting 2024 white paper: the current state of neuroendocrine tumour research models and our future aspirations.
Endocr Oncol
January 2024
OCDEM, Radcliffe Department of Medicine, University of Oxford, Churchill Hospital, Oxford, UK.
Current models for the study of neuroendocrine tumours (NETs) are severely limited. While (e.g.
View Article and Find Full Text PDFWant 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!