Efficient Generation of Knock-Out Sheep by Electroporation of CRISPR-Cas9 Ribonucleoprotein Complex with Dual-sgRNAs.

In mice, naturally occurring and induced mutations in the suppressor of cytokine signaling-2 () gene are associated with a high growth phenotype characterized by rapid post-weaning weight gain and 30-50% heavier mature body weight. In this work, we demonstrate an electroporation-based method of producing knock-out (KO) sheep. Electroporation of dual-guide CRISPR-Cas9 ribonucleoprotein complexes targeting was performed 6 h post-fertilization in sheep zygotes.

Grenadian cats as potential reservoir for Leptospira.

Leptospirosis is a spirochetal disease caused by Leptospira spp. bacteria with global distribution affecting multiple mammalian species, including humans. The disease is endemic in many geographic areas and is of particular concern in tropical regions with abundant rainfall, such as the Caribbean.

The use of pain killers (NSAIDs) in athletes: How large is the risk?

Nonsteroidal anti-inflammatory drug use is prevalent in sport however the risk associated with their use in athletes is not well-understood. This review discusses the pharmacology of nonsteroidal anti-inflammatory drugs and the prevalence of their use in different sports and factors driving this. Use is very high in sports such as professional football and is sometimes by routine without indication and without medical supervision.