scholarly journals The role of intestinal bacteria in the ammonia detoxification ability of teleost fish

2019 ◽  
Vol 222 (24) ◽  
pp. jeb209882 ◽  
Author(s):  
Leah A. Turner ◽  
Carol Bucking
Keyword(s):  
Teleost Fish ◽  
Intestinal Bacteria ◽  
Ammonia Detoxification

scholarly journals The Interactions between Polyphenols and Microorganisms, Especially Gut Microbiota

Antioxidants ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 188
Author(s):  
Małgorzata Makarewicz ◽  
Iwona Drożdż ◽  
Tomasz Tarko ◽  
Aleksandra Duda-Chodak
Keyword(s):  
Intestinal Bacteria ◽  
Research Data ◽  
Bioactive Metabolites ◽  
Human Organism ◽  
Comprehensive Knowledge ◽  
Bidirectional Relationship ◽  
The Matrix ◽  
Intestinal Pathogens ◽  
The Impact

This review presents the comprehensive knowledge about the bidirectional relationship between polyphenols and the gut microbiome. The first part is related to polyphenols’ impacts on various microorganisms, especially bacteria, and their influence on intestinal pathogens. The research data on the mechanisms of polyphenol action were collected together and organized. The impact of various polyphenols groups on intestinal bacteria both on the whole “microbiota” and on particular species, including probiotics, are presented. Moreover, the impact of polyphenols present in food (bound to the matrix) was compared with the purified polyphenols (such as in dietary supplements) as well as polyphenols in the form of derivatives (such as glycosides) with those in the form of aglycones. The second part of the paper discusses in detail the mechanisms (pathways) and the role of bacterial biotransformation of the most important groups of polyphenols, including the production of bioactive metabolites with a significant impact on the human organism (both positive and negative).

Activation of Hypothalamic Neurons by Intraovarian Pressure Signals in a Teleost Fish, Clams batrachus: Role of Mechanosensitive Channels

1996 ◽  
Vol 47 (4) ◽  
pp. 179-184 ◽  
Author(s):  
Nishikant Subhedar ◽  
Makrand K. Deshmukh ◽  
Mukul R. Jain ◽  
Firdos Alam Khan ◽  
N.S. Rama Krishna
Keyword(s):  
Teleost Fish ◽  
Mechanosensitive Channels ◽  
Hypothalamic Neurons

scholarly journals The role of phospholipids in nutrition and metabolism of teleost fish

Aquaculture ◽  
2008 ◽  
Vol 280 (1-4) ◽  
pp. 21-34 ◽  
Author(s):  
Douglas R. Tocher ◽  
Eldar Å. Bendiksen ◽  
Patrick J. Campbell ◽  
J. Gordon Bell
Keyword(s):  
Teleost Fish

scholarly journals Ca2+-driven intestinal HCO3− secretion and CaCO3 precipitation in the European flounder in vivo: influences on acid-base regulation and blood gas transport

2010 ◽  
Vol 298 (4) ◽  
pp. R870-R876 ◽  
Author(s):  
Christopher A. Cooper ◽  
Jonathan M. Whittamore ◽  
Rod W. Wilson
Keyword(s):  
Teleost Fish ◽  
Gas Transport ◽  
Driving Forces ◽  
Marine Teleost ◽  
Acid Excretion ◽  
Acid Base ◽  
Marine Teleost Fish ◽  
Net Acid Excretion

Marine teleost fish continuously ingest seawater to prevent dehydration and their intestines absorb fluid by mechanisms linked to three separate driving forces: 1) cotransport of NaCl from the gut fluid; 2) bicarbonate (HCO3−) secretion and Cl− absorption via Cl−/HCO3− exchange fueled by metabolic CO2; and 3) alkaline precipitation of Ca2+ as insoluble CaCO3, which aids H2O absorption). The latter two processes involve high rates of epithelial HCO3− secretion stimulated by intestinal Ca2+ and can drive a major portion of water absorption. At higher salinities and ambient Ca2+ concentrations the osmoregulatory role of intestinal HCO3− secretion is amplified, but this has repercussions for other physiological processes, in particular, respiratory gas transport (as it is fueled by metabolic CO2) and acid-base regulation (as intestinal cells must export H+ into the blood to balance apical HCO3− secretion). The flounder intestine was perfused in vivo with salines containing 10, 40, or 90 mM Ca2+. Increasing the luminal Ca2+ concentration caused a large elevation in intestinal HCO3− production and excretion. Additionally, blood pH decreased (−0.13 pH units) and plasma partial pressure of CO2 (Pco2) levels were elevated (+1.16 mmHg) at the highest Ca perfusate level after 3 days of perfusion. Increasing the perfusate [Ca2+] also produced proportional increases in net acid excretion via the gills. When the net intestinal flux of all ions across the intestine was calculated, there was a greater absorption of anions than cations. This missing cation flux was assumed to be protons, which vary with an almost 1:1 relationship with net acid excretion via the gill. This study illustrates the intimate link between intestinal HCO3− production and osmoregulation with acid-base balance and respiratory gas exchange and the specific controlling role of ingested Ca2+ independent of any other ion or overall osmolality in marine teleost fish.

The role of aquaporin 3 in teleost fish

2007 ◽  
Vol 148 (1) ◽  
pp. 82-91 ◽  
Author(s):  
Christopher Paul Cutler ◽  
Anne-Sophie Martinez ◽  
Gordon Cramb
Keyword(s):  
Teleost Fish ◽  
Aquaporin 3

scholarly journals An Evidence for a Novel Antiviral Mechanism of Teleost Fish: Serum-Derived Exosomes Inhibit Virus Replication Through Incorporating Mx1 Protein

2021 ◽  
Author(s):  
Changjun Guo ◽  
Jian He ◽  
Zhi-Min Li ◽  
Yuanyuan Wang ◽  
Chen nan nan ◽  
...  
Keyword(s):  
Cancer Progression ◽  
Teleost Fish ◽  
Protein Composition ◽  
Underlying Mechanism ◽  
Antiviral Effect ◽  
Mandarin Fish ◽  
Underlying Mechanisms ◽  
Antiviral Mechanism ◽  
Fish Serum

Exosomes are associated with cancer progression, pregnancy, cardiovascular diseases, central nervous system–related diseases, immune responses and viral pathogenicity. However, study on the role of exosomes in the immune response of teleost fish, especially antiviral immunity, is limited. Herein, serum-derived exosomes from mandarin fish were used to investigate antiviral effect for the exosomes of teleost fish. Exosomes were isolated from mandarin fish serum by ultracentrifugation could internalize into Mandarin fish fry (MFF-1) cells and inhibited Infectious spleen and kidney necrosis virus (ISKNV) infection. To further investigated the underlying mechanisms of exosomes in inhibiting ISKNV infection. The protein composition of serum-derived exosomes was by analysis mass spectrometry and found that myxovirus resistance 1 (Mx1) was incorporated in the exosomes. Furthermore, the scMx1 protein was proved transferred to the recipient cells though the exosomes. Our results found that the serum-derived exosomes from mandarin fish could inhibit ISKNV replication and suggested an underlying mechanism of the serum-derived exosomes antivirus is that serum-derived exosomes incorporation of the Mx1 protein into exosomes and delivery into recipient cells. This study provided an evidence for the important antiviral role of exosomes in the immune system of teleost fish.

scholarly journals The Role of Intestinal Bacteria in the Transformation of Sodium Picosulfate

1992 ◽  
Vol 59 (1) ◽  
pp. 1-5 ◽  
Author(s):  
Dong-Hyun Kim ◽  
Sung-Hae Hyun ◽  
Sang-Bum Shim ◽  
Kyoichi Kobashi
Keyword(s):  
Intestinal Bacteria ◽  
Sodium Picosulfate

Metabolism of 2-nitrofluorene, 2-aminofluorene and 2-acylaminofluorenes in rat and dog and the role of intestinal bacteria

Xenobiotica ◽  
2001 ◽  
Vol 31 (1) ◽  
pp. 33-49 ◽  
Author(s):  
O. Ueda ◽  
S. Kitamura ◽  
R. Kubo ◽  
Y. Yano ◽  
Y. Kanzaki ◽  
...  
Keyword(s):  
Intestinal Bacteria
Sign in / Sign up

Export Citation Format

Share Document