In Salmonella Typhimurium, efflux pump proteins, such as AcrD actively expel drugs and hazardous chemicals from bacterial cells, resulting in treatment failure and the emergence of antibiotic-resistant variants. Focusing on AcrD may lead to the development of novel antimicrobials against multidrug-resistant bacteria. However, challenges persist in achieving high selectivity, low toxicity, and effective bacterial penetration.
View Article and Find Full Text PDFSalmonella remains the leading cause of foodborne infections globally. Environmental reservoirs, particularly aquatic bodies, serve as conduits for the fecal-oral transmission of this pathogen. While the gastrointestinal tract is traditionally considered the primary habitat of Salmonella, mounting evidence suggests the bacterium's capacity for survival in external environments.
View Article and Find Full Text PDFStaphylococcus aureus is a common bacterium that causes a variety of infections in humans. This microorganism produces several virulence factors, including hemolysins, which contribute to its disease-causing ability. The treatment of S.
View Article and Find Full Text PDFImportance: Bovine mastitis, predominantly associated with gram-positive , poses a significant threat to dairy cows, leading to a decline in milk quality and volume with substantial economic implications.
Objective: This study investigated the incidence, virulence, and antibiotic resistance of associated with mastitis in dairy cows.
Methods: Fifty milk-productive cows underwent a subclinical mastitis diagnosis, and the strains were isolated.
Int J Environ Health Res
December 2024
is known for its disease-causing serotypes, including Montevideo and Pomona. These serotypes have been found in various environments, including river water, sediments, food, and animals. However, the global spread of these serotypes has increased, leading to many reported infections and outbreaks.
View Article and Find Full Text PDFBMC Pulm Med
November 2023
is an emerging and opportunistic human pathogen found in developing countries and is a causative agent of wound, urinary tract, and blood infections. The present study conducted comparative genomic analyses of a strain collection from diverse geographical locations and sources to identify the relevant virulence and antimicrobial resistance genes. Pangenome analyses divided the examined strains into five distinct clades; the subsequent classification identified genes with functional roles in carbohydrate and general metabolism for the core genome and genes with a role in secretion, adherence, and the mobilome for the shell and cloud genomes.
View Article and Find Full Text PDFObjective: To assess the occupational factors associated with the occurrence of COVID-19 in health personnel who were exposed to different magnitudes of risk and who followed the United Nations crisis management policy for COVID-19.
Methods: Cross-sectional survey conducted between April and May 2021. The low-risk group (LRG) were considered to be those who had minimal contact with patients; the medium-risk group (MRG) had contact with non-COVID-19 patients and did not perform instrumental airway intervention; and the high-risk group (HRG) were those who cared for COVID-19 patients and performed instrumental intervention with aerosol generation.
As the human population grows, an increase in food trade is needed. This elevates the risk of epidemiological outbreaks. One of the prevalent pathogens associated with food production in Mexico has been Salmonella Oranienburg.
View Article and Find Full Text PDFMosquito-borne diseases such as malaria and dengue are global severe public health threats. Due to the lack of efficient control methods, alternative approaches to decreasing arboviral transmitted diseases are prioritized to reduce morbidity and mortality in every endemic region. Mosquito midgut bacteria play an essential role in physiological development, fitness, and the arthropods´ vectorial capacity.
View Article and Find Full Text PDFEscherichia coli is a leading cause of human enteric diseases worldwide. The rapid and accurate causal agent identification to a particular source represents a crucial step in the establishment of safety and health measures in the affected human populations and would thus provide insights into the relationship of traits that may contribute for pathogen persistence in a particular reservoir. The objective of the present study was to characterize over two hundred E.
View Article and Find Full Text PDFis a leading cause of human gastrointestinal disease worldwide. Given that is persistent in aquatic environments, this study examined the prevalence, levels and genotypic diversity of isolates recovered from major rivers in an important agricultural region in northwestern Mexico. During a 13-month period, a total of 143 river water samples were collected and subjected to size-exclusion ultrafiltration, followed by enrichment, and selective media for isolation and quantitation.
View Article and Find Full Text PDFThe health crisis caused by the new coronavirus SARS-CoV-2 highlights the need to identify new treatment strategies for this viral infection. During the past year, over 400 coronavirus disease (COVID-19) treatment patents have been registered; nevertheless, the presence of new virus variants has triggered more severe disease presentations and reduced treatment effectiveness, highlighting the need for new treatment options for the COVID-19. This study evaluates the Metformin Glycinate (MG) effect on the SARS-CoV-2 in vitro and in vivo viral load.
View Article and Find Full Text PDFSalmonella enterica is a pathogenic bacterium responsible for intestinal illness and systemic diseases such as typhoid and paratyphoid fevers. Among clinical manifestation classification, non-typhoidal Salmonella is mainly known as foodborne pathogen associated with the consumption of fecal contaminated food and water. Even though Salmonella hosts include humans and warm-blooded animals, it has been found in non-host environments as river water where the bacteria use different strategies to fitness the environment persisting and establishment.
View Article and Find Full Text PDFA total of 116 Vibrio isolates comprising V. alginolyticus (n = 53), V. metschnikovii (n = 38), V.
View Article and Find Full Text PDFColistin has become the last-line antimicrobial for the treatment of multidrug resistant (MDR) in human medicine. To date, several colistin resistance genes have been described. Of them -1 is disseminated worldwide in of human and animal origin.
View Article and Find Full Text PDFHere, we report the genome sequences of three strains belonging to serovars Weltevreden (CFSAN047349), Saintpaul (CFSAN047351), and Thompson (CFSAN047352), isolated from river water in Sinaloa, Mexico. The genomes were closed by a combination of long-read and short-read sequencing. The strain sequence types (STs) are ST365, ST50, and ST26, respectively.
View Article and Find Full Text PDFIntroduction: In assessing the patient with headache, clinicians are often faced with 2 important questions: Is this headache a migraine? Does this patient require neuroimaging? The aim of this study was to assess the validity and applicability of the mnemonic POUNDing rule in patients diagnosed with migraine.
Patients And Methods: A descriptive, validation study of the POUNDing rule in patients with a diagnosis of migraines and with a brain imaging test (computed tomography or magnetic resonance imaging), in an urban health centre and a neurology clinic of the University Hospital of Badajoz.
Results: A total of 116 patients were included (mean age 45.
Background: Public health is increasingly concerned with recognising factors that lead to sex differences in stroke. We conducted a study to determine the effect of sex on knowledge of stroke risk factors and warning signs, and how both are perceived, in a representative sample of adults.
Methods: A representative sample of the population of Extremadura, Spain was selected using a double randomisation technique.
Background: This article surveys a representative sample of adults to assess their knowledge of stroke, its vascular risk factors and warning symptoms, illness perception, and attitude toward strokes.
Methods: A representative sample of the region population was selected using a double randomization design. Previously trained medical students carried out face-to-face interviews using a structured questionnaire with open- and closed-ended questions.
Objectives: Socioeconomic status is a factor that influences health-related behaviour in individuals as well as health conditions in entire populations. The objective of the present study was to analyse the sociodemographic factors that may influence knowledge of stroke.
Method: Cross-sectional study.
Recently, a rapid bedside assay for quantitative determination of cTI and CPK-MB has been developed that provides a positive or negative result in 10 to 15 minutes allowing for a better therapeutic approach. The objective of our study was to validate the diagnostic usefulness of cardiac troponin I in patients with chest pain. We determined sensitivity, specificity, positive and negative predictive values in 40 patients that arrived to the hospital with chest pain.
View Article and Find Full Text PDFObjective: To assess levosimendan efficacy in acute cardiac failure.
Methods: We included 25 patients with acute cardiac failure and partial conventional therapy response defined as persistence of low cardiac output with inotropic support. We started levosimendan at loading dose and continuous infusion for 24 hours, recording hemodynamic data, as well as clinical variables.