Keystone engineering enables collective range expansion in microbial communities.

Keystone engineers profoundly influence microbial communities by altering their shared environment, often by modifying key resources. Here, we show that in an antibiotic-treated microbial community, bacterial spread is controlled by keystone engineering affecting dispersal- an effect hidden in well-mixed environments. Focusing on two pathogens, non-motile Klebsiella pneumoniae and motile Pseudomonas aeruginosa, we found that both tolerate a β-lactam antibiotic, with Pseudomonas being more resilient and dominating in well-mixed cultures.

The PIKASO trial (Preventing Injured Knees from Osteoarthritis: Severity Outcomes): Rationale and design features for a randomized controlled trial.

Objective: Given the high burden and increasing prevalence of post-traumatic osteoarthritis (PTOA), identifying clinically beneficial strategies to prevent or delay its onset could improve the quality of life of those at high risk of developing the disease.

Methods: Preventing Injured Knees from OsteoArthritis: Severity Outcomes (PIKASO) is a multicenter blinded, parallel, two-arm randomized controlled trial of 512 individuals aged 18-45 years undergoing anterior cruciate ligament reconstruction (ACLR). This study is designed to evaluate the efficacy of a 12-month intervention of oral metformin vs.

Attaching artificial Achilles and tibialis cranialis tendons to bone using suture anchors in a rabbit model: assessment of outcomes.

Objective: The purpose of this study was to investigate the timing and mode of failure of metallic screw-type suture anchors used to attach artificial tendons to bone in an New Zealand White rabbit model.

Study Design: Metal suture anchors with braided composite sutures of varying sizes (United States Pharmacopeia (USP) size 1, 2, or 5) were used to secure artificial tendons replacing both the Achilles and tibialis cranialis tendons in 12 female New Zealand White rabbits. Artificial tendons were implanted either at the time of (immediate replacement,  = 8), or four/five weeks after (delayed replacement,  = 4) resection of the biological tendon.

Pain and Physical Function are common core domains across 40 core outcome sets of musculoskeletal conditions: A systematic review.

Objective: To determine common domains across existing musculoskeletal COSs. Secondary aims were to assess the development quality of existing musculoskeletal COSs and whether development quality and patient participation was associated with domain selection.

Study Design And Setting: A systematic review of musculoskeletal COSs.

Detection of Amblyomma maculatum and Rickettsia parkeri in prairies of Central Missouri.

The destruction and decline of prairie habitats due to landscape repurposing have profoundly impacted the diversity of plant, animal, and insect life. In the Central United States, the reconstruction of prairie habitats from farmland is a widely applied strategy to raise diversity and recreate a healthy, complex ecosystem. In Central Missouri, we examine the consequences of reconstruction efforts on the prevalence of zoonotic diseases and their associated pathogens by performing tick-flagging at two prairie sites.