Organic acid blend supplementation increases butyrate and acetate production in Salmonella enterica serovar Typhimurium challenged broilers.

The burden of enteric pathogens in poultry is growing after the ban of antibiotic use in animal production. Organic acids gained attention as a possible alternative to antibiotics due to their antimicrobial activities, improved nutrient metabolism and performance. The current study was conducted to evaluate the effectiveness of organic acid blend on broilers cecal microbiota, histomorphometric measurements, and short-chain fatty acid production in Salmonella enterica serovar Typhimurium challenge model.

A systematic review and meta-analysis on the management of accidental dural tears in spinal surgery: drowning in information but thirsty for a clear message.

Purpose: To systematically review the published techniques for dural tear (DT) repair in spinal surgery to determine the repair method associated with the lowest failure rate.

Method: A systematic literature search was conducted. Studies reporting the treatment of accidental DT in elective spinal surgery were selected and reviewed with regards to the incidence of DT, repair techniques and outcome.

Effect of motor vehicle pollution on lung function, fractional exhaled nitric oxide and cognitive function among school adolescents.

Objective: Motor vehicle emission is a major cause of environmental pollution, which threatens human health. This study aimed to investigate the effect of motor vehicle pollution on lung function, fractional exhaled nitric oxide (FeNO), and cognitive function among students studying in a school located in a traffic-polluted area.

Subjects And Methods: In this cross-sectional study, students were recruited based on their apparent healthy status, same age, gender, height, weight, ethnicity, and homogenous educational, socio-economic status, and living backgrounds.

Characteristics and sources of anthropogenic and biogenic hydrocarbons in sediments from the coast of Qatar.

Surface sediment samples from the coastal zone of Qatar were collected and analyzed to determine the characteristics, and sources of anthropogenic and biogenic hydrocarbons. The main compounds in these surface sediments included n-alkanes, methyl n-alkanoates, diterpenoids, hopanes, steranes, phthalate esters, polycyclic aromatic hydrocarbons (PAHs) and unresolved complex mixture (UCM). Their total concentrations ranged from 18.