The present study was undertaken to investigate the effect of butyric (C4) short-chain fatty acids on the bioelectric and contractile activity of smooth muscle (SM) tissues from rat and guinea-pig gastrointestinal tracts. The study was conducted in vitro on isolated SM preparations of rat gastric corpus and guinea pig taenia coli. The following methods were used: 1. Recording of bioelectric activity using the single sucrose gap method. 2. Isometric recording of smooth muscle contractility. The results showed that there was potentiation of the spontaneous bioelectric and contractile activities of SM preparations in the presence of butyrate (a salt of the butyrate short-chain fatty acid). This effect was accompanied by an increase of Ca(2+)-influx in the SM cells. The immediate cause for this process was elevation of prostaglandin F2-alpha level in the SM tissues. The present study suggested the following conclusions: 1. Butyric short-chain fatty acid increases the contractility of gastrointestinal SM preparations of experimental animals. 2. This effect is produced by the immediate action of PGF2-alpha on smooth muscles where they are found to have elevated levels in the presence of butyrate.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
2-[F]Fluoropropionic Acid PET Imaging of Doxorubicin-Induced Cardiotoxicity.
Mol Imaging Biol
January 2025
Department of Radiology, Weill Cornell Medicine, 413 E 69th Street, Room BB-1604, New York, NY, 10021, USA.
Purpose: Treatment of pediatric cancers with doxorubicin is a common and predictable cause of cardiomyopathy. Early diagnosis of treatment-induced cardiotoxicity and intervention are major determinants for the prevention of advanced disease. The onset of cardiomyopathies is often accompanied by profound changes in lipid metabolism, including an enhanced uptake of short-chain fatty acids (SCFA).
View Article and Find Full Text PDFGut Microbiota-Based Interventions for Parkinson's Disease: Neuroprotective Mechanisms and Current Perspective.
Probiotics Antimicrob Proteins
January 2025
Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, S.A.S. Nagar, Mohali, Punjab, 160062, India.
Recent evidence links gut microbiota alterations to neurodegenerative disorders, including Parkinson's disease (PD). Replenishing the abnormal composition of gut microbiota through gut microbiota-based interventions "prebiotics, probiotics, synbiotics, postbiotics, and fecal microbiota transplantation (FMT)" has shown beneficial effects in PD. These interventions increase gut metabolites like short-chain fatty acids (SCFAs) and glucagon-like peptide-1 (GLP-1), which may protect dopaminergic neurons via the gut-brain axis.
View Article and Find Full Text PDFGut microbial alteration in chronic spontaneous urticaria unresponsive to second generation antihistamines and its correlation with disease characteristics- a cross-sectional case-control study.
Clin Transl Allergy
January 2025
Department of Dermatology, Hospital del Mar Research Institute, Barcelona, Spain.
Background: Gut microbial involvement has been speculated in chronic spontaneous urticaria (CSU). The aim of the study was to compare the gut microbiome composition and diversity in CSU patients uncontrolled with second-generation antihistamines (sgAHs) and healthy individuals, as well as to explore any association between gut microbiome and disease characteristics.
Methods: A cross-sectional case-control study including 20 CSU patients unresponsive to standard doses of sgAHs, and 15 age-and-sex matched healthy controls was conducted.
Gut microbiota and short-chain fatty acids signatures in postmenopausal osteoporosis patients: A retrospective study.
Medicine (Baltimore)
November 2024
Department of Endocrinology, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, P. R. China.
Studies have shown that gut microbiota (GM) and its metabolites, short-chain fatty acids (SCFAs), are associated with the development of postmenopausal osteoporosis (PMO). This study explored the clinical and laboratory evidence of the relationship of GM and SCFAs to PMO and attempted to determine the potential mechanism of action. 18 patients (Collected from the First Affiliated Hospital of Guangdong Pharmaceutical University between January 2021 and August 2021) were included in this retrospective study, including 10 PMO women and 8 healthy young women as the healthy control (HC) group from Guangzhou, China.
View Article and Find Full Text PDFA combination treatment with a water extract from Euglena gracilis and anti-PD-1 antibody strongly inhibits growth of lung cancer in mice through stimulating tumor-infiltrating lymphocytes.
Int Immunopharmacol
January 2025
Department of Anatomy & Physiology, Kansas State University College of Veterinary Medicine, Manhattan, KS 66506, USA. Electronic address:
Here, we investigated the relationship between the attenuation of lung cancer growth due to oral administration of Euglena gracilis water extract (EWE) and T cell stimulation. Orally administered EWE was revealed to increase PD-1 and PD-L1 mRNA and proteins primarily in tumor-infiltrating lymphocytes (TILs), which was correlated with a significant decrease in the tumor weights in mice. A combination treatment with EWE and anti-PD-1 antibody significantly decreased the growth of murine lung tumors more than treatment with either alone by increasing the number of TILs and attenuating T cell exhaustion.
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!