Correction: Bellu et al. Smart Nanofibers with Natural Extracts Prevent Senescence Patterning in a Dynamic Cell Culture Model of Human Skin. 2020, , 2530.

In the original publication [...

Smart Nanofibers with Natural Extracts Prevent Senescence Patterning in a Dynamic Cell Culture Model of Human Skin.

Natural cosmetic products have recently re-emerged as a novel tool able to counteract skin aging and skin related damages. In addition, recently achieved progress in nanomedicine opens a novel approach yielding from combination of modern nanotechnology with traditional treatment for innovative pharmacotherapeutics. In the present study, we investigated the antiaging effect of a pretreatment with natural extract combined with a polycaprolactone nanofibrous scaffold (NanoPCL-M) on skin cell populations exposed to UV.

Hydrogel Containing Anti-CD44-Labeled Microparticles, Guide Bone Tissue Formation in Osteochondral Defects in Rabbits.

Hydrogels are suitable for osteochondral defect regeneration as they mimic the viscoelastic environment of cartilage. However, their biomechanical properties are not sufficient to withstand high mechanical forces. Therefore, we have prepared electrospun poly-ε-caprolactone-chitosan (PCL-chit) and poly(ethylene oxide)-chitosan (PEO-chit) nanofibers, and FTIR analysis confirmed successful blending of chitosan with other polymers.

PVA and PCL nanofibers are suitable for tissue covering and regeneration.

The aim of the study was to evaluate the safety and efficacy of a new therapeutic approach to skin defects resulting from split thickness grafting. Within the study, nanofiber-based dressings fabricated using polyvinyl alcohol (PVA) and poly-ε-caprolactone (PCL) were used, with different mass density. The study was performed in 1 female minipig.

Polycaprolactone foam functionalized with chitosan microparticles - a suitable scaffold for cartilage regeneration.

For biodegradable porous scaffolds to have a potential application in cartilage regeneration, they should enable cell growth and differentiation and should have adequate mechanical properties. In this study, our aim was to prepare biocompatible scaffolds with improved biomechanical properties. To this end, we have developed foam scaffolds from poly-epsilon-caprolactone (PCL) with incorporated chitosan microparticles.

[Implantation Technique of a Non-cemented Conical Expansion Socket of the Balgrist Type.].

In the submitted paper the authors describe the principle and technique of implantation of a non-cemented self-expanding socket. On an anatomical model they demonstrate different technical details of implantation and provide a more accurate account of their own surgical technique. They draw attention to the most frequent errors the surgeon may comit.

[Non-cemented Ceramic Acetabular Component.].

In 1989-1992 the authors used at the Orthopaedic Clinic, First Medical Faculty, Charles University Prague 34 ceramic conical non-cemented sockets. They used 12 original sockets type AUTOPHOR Osteo Co. and 22 local sockets manufactured by Dias Co.

[A modified Desault bandage for fixation of the proximal humerus].

The authors present a variant of Desault's bandage for fixation of conservatively treated injuries of the proximal end of the humerus and for fixation of the upper extremity after surgery in this area. The bandage is made with elastic net bandage (called pruban), it is sufficiently strong and its application is easier and less time consuming.

[Further improvement of transport immobilization in the czechoslovak army.].

The authors inform about a new traction frame for the lower extremity to be used by the health service in the Czechoslovak Army. They present fundamental requirements set for the development of this plate and perspectives of its series production. Key words: metal traction frame, lower extremity, immobilization.