Short-acting beta agonist, antibiotics, oral corticosteroid and association with mortality and cardiopulmonary events in patients with COPD: a retrospective cohort study in Alberta, Canada.

Objective: The purpose of the study was to examine the association between short-acting beta agonist (SABA), antibiotic and oral corticosteroid (OCS) use and mortality and cardiopulmonary outcomes in chronic obstructive pulmonary disease (COPD).

Design: Retrospective cohort study using administrative health data from 1 April 2011 to 31 March 2020.

Setting: Alberta, Canada.

Unmasking tuberculous arthritis in a prosthetic joint: Diagnostic and therapeutic challenges.

An 85-year-old woman with a history of total knee replacements for osteoarthritis in the past, presented with left knee swelling and pain that persisted for 14 months. An initial diagnosis of synovial cyst was made, and she underwent multiple aspirations and symptomatic treatments without improvement. Repeat arthrocentesis showed a WBC of 56,000/μL with 61 % neutrophils and 34 % lymphocytes.

AMPK Activates Cellulase Secretion in Penicillium funiculosum by Downregulating P-HOG1 MAPK Levels.

Cellulase production for hydrolyzing plant cell walls is energy-intensive in filamentous fungi during nutrient scarcity. AMP-activated protein kinase (AMPK), encoded by snf1, is known to be the nutrient and energy sensor in eukaryotes. Previous studies on AMPK identified its role in alternate carbon utilization in pathogenic fungi.

3D bioprinting of engineered exosomes secreted from M2-polarized macrophages through immunomodulatory biomaterial promotes wound healing and angiogenesis.

Biomaterial composition and surface charge play a critical role in macrophage polarization, providing a molecular cue for immunomodulation and tissue regeneration. In this study, we developed bifunctional hydrogel inks for accelerating M2 macrophage polarization and exosome (Exo) cultivation for wound healing applications. For this, we first fabricated polyamine-modified three-dimensional (3D) printable hydrogels consisting of alginate/gelatin/polydopamine nanospheres (AG/NSPs) to boost M2-exosome (M2-Exo) secretion.

Electroconductive Nanocellulose, a Versatile Hydrogel Platform: From Preparation to Biomedical Engineering Applications.

Nanocelluloses have garnered significant attention recently in the attempt to create sustainable, improved functional materials. Nanocellulose possesses wide varieties, including rod-shaped crystalline cellulose nanocrystals and elongated cellulose nanofibers, also known as microfibrillated cellulose. In recent times, nanocellulose has sparked research into a wide range of biomedical applications, which vary from developing 3D printed hydrogel to preparing structures with tunable characteristics.