Assessment of Factors Influencing Personal Exposure to Air Pollution on Main Roads in Bogota: A Mixed-Method Study.

: Particulate Matter (PM), particles of variable but small diameter can penetrate the respiratory system via inhalation, causing respiratory and/or cardiovascular diseases. This study aims to evaluate the association of environmental particulate matter (PM) and black carbon (BC) with respiratory health in users of different transport modes in four roads in Bogotá. : this was a mixed-method study (including a cross sectional study and a qualitative description of the air quality perception), in 300 healthy participants, based on an exploratory sequential design.

Seroprevalence of the SARS-CoV-2 antibody in healthcare workers: a multicentre cross-sectional study in 10 Colombian cities.

Background: Healthcare workers are at increased risk of infection due to occupational exposure to SARS-CoV-2-infected patients. The objective of this study was to determine the seroprevalence of SARS-CoV-2 in healthcare workers in Colombia.

Methods: This study is a cross-sectional study focused on estimating the seroprevalence of SARS-CoV-2 antibodies in healthcare workers from 65 hospitals in 10 cities in Colombia during the second semester of 2020.

From environment to clinic: the role of pesticides in antimicrobial resistance.

Antimicrobial resistance (AMR) in pathogens has been associated mainly with excessive use of antibiotics. Most studies of resistance have focused on clinical pathogens; however, microorganisms are exposed to numerous anthropogenic substances. Few studies have sought to determine the effects of chemical substances on microorganisms.

Evaluation of concordance among surgeons and pathologists regarding the diagnosis and classification of acute appendicitis in children.

Unlabelled: Acute appendicitis is the most frequent urgent abdominal surgical pathology in children. Therapeutic decisions in patients who have undergone an appendectomy are made based on the macroscopic findings at the moment of surgery. There is high variability between surgical and histopathological findings.

Bufo marinus oocytes as a model for ion channel protein expression and functional characterization for electrophysiological studies.

Oocytes from Xenopus laevis are commonly used as an expression system for ion channel proteins. The aim of this study was to determine whether oocytes from the Colombian native toad, Bufo marinus, could be used as an alternative expression system for ion channel protein expression and functional characterization using the two-microelectrode voltage clamp method. B.