Selecting effective antidepressants for the treatment of major depressive disorder is an imprecise practice. With remission rates of about 30% after the initial therapy selection, there is a need to uncover biomarkers able to predict treatment response. This study looked at pharmacogenomic testing for drug-gene interactions to guide treatment selection. Unfortunately, they did not find significantly improved outcomes.

A conversation with Ann Marie Navar, MD, PhD, associate professor of cardiology at UT Southwestern in Dallas, Texas and associate editor of JAMA Cardiology, who discusses common statin-related myths, the safety of statin therapy, and reliable sources of information for patients.

Read this article and obtain AMA PRA Category 1 Credit! The learning objective? To appraise when stress ulcer prophylaxis should be considered for critically ill patients with risk factors for stress ulcers.

A comprehensive review on the widespread uptake of vaping, including its origins and history, a timeline of discoveries, terminology, epidemiology, its use as a “harm reducer,” clinical presentations of vaping lung injuries (including an overview of the 2019 EVALI outbreak), the pathophysiology of vaping-induced lung injury, clinical aspects including outcomes, COVID-19 considerations, future directions, guidelines, and questions for future research.

The knee arthritis meta-analysis reviewed 169 trials involving 21,163 patients, with the evidence demonstrating viscosupplementation is associated with a clinically irrelevant reduction in pain intensity and with an increased risk of serious adverse events compared with placebo. For the meniscus study, the commentary may sum it up best: “Multiple studies, including several with sham surgeries as a control have shown repeatedly over the previous 2 decades that surgery is not superior to physical therapy, yet the issue and use of surgery persist.”

Twitter silenced the five doctors over unspecified tweets — according to their lawyer, the physicians “only posted truthful statements regarding COVID-19 policy, diagnosis and/or treatment” — and now the doctors are suing the platform, claiming Twitter broke its contract by permanently suspending their accounts.