[The genotoxicity and carcinogenic potential of gastrofenzin]

E Mirkova1

  • 1National Centre of Hygiene, Sofia.

Eksperimentalna Meditsina I Morfologiia
|January 1, 1994
PubMed

Insights

The Bulgarian drug gastrophensin showed no mutagenic effects in Salmonella assays or genotoxicity in mouse bone marrow micronucleus tests. These findings suggest gastrophensin lacks mutagenicity and carcinogenic potential.

Area of Science:

  • Pharmacology
  • Toxicology
  • Genetics

Background:

  • Gastrophensin is a Bulgarian drug requiring safety evaluation.
  • Genotoxicity testing is crucial for assessing drug safety and potential carcinogenicity.

Purpose of the Study:

  • To evaluate the genotoxic potential of gastrophensin using in vitro and in vivo assays.
  • To determine if gastrophensin exhibits mutagenic or carcinogenic properties.

Main Methods:

  • In vitro: Salmonella/mutation assay (Ames test) with five mutant strains (+/- S9 metabolic activation) at various concentrations.
  • In vivo: Rodent bone marrow micronucleus test in male C57Bl6 mice following single oral administration at 80% and 40% of the LD50.

Main Results:

  • Gastrophensin did not induce mutagenic responses in the Salmonella/mutation assay across all tested concentrations and conditions.
  • No significant increase in micronuclei formation was observed in mouse bone marrow cells at tested doses and time points.

Conclusions:

  • Gastrophensin demonstrates a lack of mutagenicity based on the Salmonella/mutation assay.
  • In vivo genotoxicity tests confirm that gastrophensin does not induce DNA damage in mouse bone marrow cells.
  • The study concludes that gastrophensin possesses neither mutagenic nor carcinogenic potential.

Related Concept Videos

What is Monogastric Digestion?01:50

What is Monogastric Digestion?

The human body contains a monogastric digestive system. In a monogastric digestive system, the stomach only contains one chamber in which it digests food. Several other animal species also have monogastric digestive systems, including pigs, horses, dogs, and birds. This chapter, however, focuses on the human digestive system.
Cancer Prevention02:59

Cancer Prevention

Several factors can increase the risk of cancer in an individual. About 50% of cancer cases can be prevented by adopting a healthy lifestyle, regular exercise, eating healthy, and following a modest cancer prevention diet. Epidemiological studies have consistently shown that populations with vegetable and fruit-rich diets have reduced the incidence of cancer. On the other hand, populations who have a diet rich in animal fat, red meat, junk food, or high calories are predisposed to cancer.
Some...
Mutagenicity and Carcinogenicity01:25

Mutagenicity and Carcinogenicity

Mutagenicity and carcinogenicity refer to the ability of drugs to cause genetic defects and induce cancer, respectively. The International Agency for Research on Cancer (IARC) classifies agents into four groups based on their carcinogenic potential. Group 1 agents are known human carcinogens; group 2A agents are probably carcinogenic to humans; group 3 agents lack data to support their role in carcinogenesis; and group 4 includes agents for which data support that they are not likely to be...
Pharmacogenetics of Drug Targets: β₂-Adrenergic Receptors, Apo E, Thymidylate Synthase01:11

Pharmacogenetics of Drug Targets: β₂-Adrenergic Receptors, Apo E, Thymidylate Synthase

Genetic polymorphisms in drug targets have emerged as critical determinants of interindividual variability in drug response and toxicity. Pharmacogenomic investigations increasingly focus on identifying these variations to personalize and optimize therapeutic interventions. A drug target may be a receptor, enzyme, or signaling protein involved in pharmacologic responses or disease-related pathways. While early pharmacogenetic studies focused primarily on drug metabolism, current research...
Gastritis II: Pathophysiology01:26

Gastritis II: Pathophysiology

The pathophysiology of gastritis begins with the colonization of the stomach lining by Helicobacter pylori (H. pylori). This bacterium spreads mainly via the oral-oral route through saliva or shared utensils, and can also be transmitted in overcrowded or unhygienic environments through contaminated water, despite its brief survival outside the body.ColonizationOnce ingested, H. pylori enters the stomach and begins colonization by navigating through the mucus layer lining the stomach wall. It...