Publications by authors named "M Hernandez-Iturriaga"
There is a lack of information about Salmonella enterica strains under acidic conditions and their association with their genome. This study characterized intraspecies variability in the growth of 167 S. enterica isolates under two acid conditions (pH 4 and 5) and linked to the whole genome sequencing (WGS) data.
View Article and Find Full Text PDFBioaccessibility of bioactive compounds present in Persea americana Mill. seed ingredient during oral-gastric digestion with antibacterial capacity against Helicobacter pylori.
V Sánchez-Quezada N Velázquez-Guadarrama S Mendoza-Elizalde M Hernández-Iturriaga P Vázquez Landaverde
J Ethnopharmacol
September 2024
Article Synopsis
- Ancient Mexican cultures traditionally used Persea americana seeds for gastrointestinal issues, as they contain bioactive compounds effective against worms and parasites.
- The study aimed to assess the antimicrobial effects of these seeds on Helicobacter pylori, linked to serious gastric diseases, through in vitro digestion and modern analytical techniques.
- The materials included oil and aqueous extracts from the seeds, tested against numerous H. pylori strains, using various methods to establish their efficacy and possible action mechanisms.
The stomach's acidic pH is a crucial barrier against foodborne pathogens such as Salmonella enterica. This study investigated the survival of S. enterica under simulated oral and gastric conditions (SGC; pH 2 for 120 min) as a function of intrinsic pathogen characteristics and food matrix.
View Article and Find Full Text PDFArticle Synopsis
- Researchers studied the genomic diversity of non-typhoidal Salmonella in raw chicken across three central Mexican states, analyzing 192 strains collected from various retail sources using whole-genome sequencing.
- Among the twenty identified serovars, Infantis, Schwarzengrund, and Enteritidis were the most prevalent, with variations in serovar distribution and antimicrobial resistance (AMR) genes linked to different states, years, seasons, and retail establishments.
- The study found a total of 145 virulence genes and classified strains into 32 virulotypes, linking several strains to significant SNP clusters that matched global isolates, providing insights for Salmonella epidemiology and risk management strategies.
Article Synopsis
- The study investigates the population structure and antimicrobial resistance (AMR) genes in a common foodborne pathogen found in Mexico, analyzing 2,561 strains.
- Key sources of these strains include food (44.28%), the environment (27.41%), animals (24.83%), and humans (3.48%), highlighting the importance of food safety.
- The research identifies prevalent serovars, frequent sequence types, and 78 AMR genes across various classes, offering critical data for public health strategies to combat foodborne diseases and enhance genomic monitoring.