Prognostic Implications of Right Ventricular Dysfunction in Severe Degenerative Mitral Regurgitation.

Background: The prevalence and impact of right ventricular dysfunction (RVD) in degenerative mitral regurgitation (DMR) is unknown. We aimed to determine whether RVD assessed by echocardiography in routine clinical practice is independently associated with mortality in patients with DMR.

Methods And Results: We used data from the MIDA-Q (Mitral Regurgitation International DAtabase-Quantitative) registry, which included patients with isolated DMR due to mitral valve prolapse from January 2003 to January 2020 from 5 tertiary centers across North America, Europe, and the Middle East.

Chlorhexidine-alcohol compared with povidone-iodine-alcohol skin antisepsis protocols in major cardiac surgery: a randomized clinical trial.

Purpose: Whether skin disinfection of the surgical site using chlorhexidine-alcohol is superior to povidone-iodine-alcohol in reducing reoperation and surgical site infection rates after major cardiac surgery remains unclear.

Methods: CLEAN 2 was a multicenter, open-label, randomized, two-arm, assessor-blind, superiority trial conducted in eight French hospitals. We randomly assigned adult patients undergoing major heart or aortic surgery via sternotomy, with or without saphenous vein or radial artery harvesting, to have all surgical sites disinfected with either 2% chlorhexidine-alcohol or 5% povidone-iodine-alcohol.

Isolated prolapse of the posterior mitral valve leaflet: phenotypic refinement, heritability and genetic etiology.

Background: Isolated posterior leaflet mitral valve prolapse (PostMVP), a common form of MVP, often referred as fibroelastic deficiency, is considered a degenerative disease. PostMVP patients are usually asymptomatic and often undiagnosed until chordal rupture. The present study aims to characterize familial PostMVP phenotype and familial recurrence, its genetic background, and the pathophysiological processes involved.

Morphology-based classification of the flying capacities of aquatic insects: A first attempt.

Flight is a key feature of the reproduction and dispersal of emerging aquatic insects. However, morphological measurements of insect flight are mostly available for terrestrial taxa and dragonflies, while aquatic insects have been poorly investigated. We analyzed 7 flight-related morphological parameters of 32 taxa belonging to 5 orders of emerging aquatic insects (Ephemeroptera, Trichoptera, Plecoptera, Diptera, and Megaloptera) with different life history traits related to flight (dispersal strategy, voltinism, adult lifespan, and swarming behavior).

Design, synthesis, and structure-activity relationship studies of 6-benzo[]indeno[1,2-]thiophen-6-one derivatives as DYRK1A/CLK1/CLK4/haspin inhibitors.

A series of sulfur-containing tetracycles was designed and evaluated for their ability to inhibit protein kinase DYRK1A, a target known to have several potential therapeutic applications including cancers, Down syndrome or Alzheimer's disease. Our medicinal chemistry strategy relied on the design of new compounds using ring contraction/isosteric replacement and constrained analogy of known DYRK1A inhibitors, thus resulting in their DYRK1A inhibitory activity enhancement. Whereas a good inhibitory effect of targeted DYRK1A protein was observed for 5-hydroxy compounds 4i-k (IC = 35-116 nM) and the 5-methoxy derivative 4e (IC = 52 nM), a fairly good selectivity towards its known DYRK1B off-target was observed for 4k.