Neuropeptide W (NPW), a novel endogenous peptide for G protein-coupled receptors GPR7 and GPR8, is expressed in the gastric antral mucosa of rat, mouse, and human stomachs. Here, we studied the ontogeny of NPW in the developing rat stomach. Real-time RT-PCR showed that NPW gene expression was initially detectable in embryonic day 14 (E14) stomach and gradually increased during the progress of age until birth, postnatal day 1 (P1). NPW mRNA level in the stomach increased again from the weaning period (P21) until reaching adulthood. Immunohistochemistry using polyclonal antibodies raised against rat NPW revealed that NPW-positive cells were detected in the P1 antral stomach and gradually increased during the development of age. Furthermore, double immunohistochemistry demonstrated that NPW colocalized with gastrin in P1 rat stomach. These data will provide clues to physiological functions of NPW in the development of rat stomach.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.regpep.2007.09.029 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Anti-inflammatory and anti-oxidative effect of pasterurised yoghurt in indomethacin induced gastric ulceration in male Wistar rats.
Heliyon
December 2024
Department of Physiology, University of Medical Sciences, Ondo City, Ondo State, Nigeria.
Background: Yoghurt, a fermented dairy product consumed by diverse cultures for centuries, has garnered significant attention from the scientific community due to its potential health benefits and remarkable versatility. This study investigated the anti-inflammatory and anti-oxidative effects of pre-treatment with pasteurized yoghurt in indomethacin induced gastric ulceration.
Method: Thirty male Wistar rats were randomly assigned into five groups.
Gastrointestinal absorption and its regulation of hawthorn leaves flavonoids.
Sci Rep
January 2025
School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai, 201203, P.R. China.
Hawthorn leave flavonoids (HLF) are widely used as an herb or dietary supplements for cardio-cerebrovascular diseases. However, its gastrointestinal absorption behavior and mechanism have not been disclosed. In this study, gastrointestinal absorption and its regulation of 4''-O-glucosylvitexin (GLV), 2''-O-rhamnosylvitexin (RHV), vitexin (VIT), rutin (RUT) and hyperoside (HP) in HLF were investigated using in vitro, in situ and in vivo models.
View Article and Find Full Text PDFIn Vivo Evidence for the Preventive Role of Vaccinium macrocarpon Aiton in Indomethacin-Induced Gastric Ulcer: Focusing on Antioxidant, Anti-Inflammatory and Anti-Apoptotic Mechanisms.
Vet Med Sci
January 2025
Department of Medical Pharmacology, Faculty of Medicine, Ataturk University, Erzurum, Turkey.
The present study aimed to unveil the gastroprotective potential of Vaccinium macrocarpon (VM) extract and its mechanism of action against indomethacin (INDO)-induced gastric ulcers in rats. To achieve this goal, rats were pretreated with either omeprazole (20 mg/kg) or VM (100 mg/kg) orally for 14 consecutive days. Gastric tissue samples were collected and various parameters were evaluated to understand the mechanism of VM's action, including the levels of superoxide dismutase, malondialdehyde, glutathione, CAT and transforming growth factor beta (TGF-β), as well as the mRNA expression levels of tumour necrosis factor alpha, interleukin 1 beta, nuclear factor kappa B (NF-κB) and inhibitor kappa B (IκB).
View Article and Find Full Text PDFBiological markers as an additional method of determining drowning.
Open Vet J
November 2024
Department of Clinical Sciences Veterinary Medicine, Veterinary faculty, University of Sarajevo, Sarajevo, Bosnia and Herzegovina.
Background: There is no specified diagnostic procedure that can help in determining the cause of death and the diagnosis of drowning because the pathohistological signs are almost identical and non-specified.
Aim: Our study aims to recognize and prove diatom appearance in organs from a forensic aspect in Bosnia and Herzegovina, and to examine which is the more specific method in the diagnosis of drowning, the diatom test or the pathohistological finding.
Methods: Rats of the recommended body weight were divided into four groups: G1 ( = 8; mechanism of death-asphyxia; cause of death-suffocation, submerged 1 hour after death); G2 ( = 8: mechanism of death-asphyxia; cause of death-suffocation, immersed 72 hours after death); G3 ( = 8: mechanism of death-asphyxia; cause of death-drowning, autopsy immediately after death), and G4 ( = 8: mechanism of death-asphyxia; cause of death-drowning, post mortem 24 hours after death).
Involvement of γ-Aminobutyric Acid and N-methyl-D-aspartate Receptors in Diabetic Gastropathy in Rats: Possible Beneficial Effect of Prolonged Treatment with Insulin and Magnesium Supplement.
Arch Razi Inst
June 2024
Department of Physiology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran.
Gastrointestinal dysfunction is a severe and common complication in diabetic patients. Some evidence shows that gamma-aminobutyric acid (GABA) and glutamate contribute to diabetic gastrointestinal abnormalities. Therefore, we examined the impact of prolonged treatment with insulin and magnesium supplements on the expression pattern of GABA type A (GABA-A), GABA-B, and N-methyl-D-aspartate (NMDA) glutamate receptors as well as nitric oxide synthase 1 (NOS-1) in the stomach of type 2 diabetic rats.
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!