A new form of severe acute localized reactions following intra-articular hyaluronic acid injections in knee osteoarthritis. A case report.

Intra-articular hyaluronic acid (HA) injections are widely used for the treatment of symptomatic knee osteoarthritis. Adverse reactions were described in a limited number of patients and consist in local inflammatory reactions and severe acute inflammatory reactions (pseudosepsis). We present the case of a 71-year-old woman who experienced a severe acute adverse effect immediately (within minutes) following intraarticular HA administration, attributed to HA precipitation.

Facile Preparation of PVDF/CoFeO-ZnO Hybrid Membranes for Water Depollution.

In this investigation, CoFeO-PVDF and CoFeO-ZnO-PVDF hybrid membranes were prepared using a modified phase inversion method in which a magnetic field was applied during the casting process to ensure a uniform distribution of nanomaterials on the membrane surface. Thus, better absorption of light and increased participation of nanoparticles in the photodegradation process is ensured. The influence of nanomaterials on the crystalline structure, surface morphology, and hydrophilicity properties of the PVDF membrane was investigated.

Genome-wide transcriptional response to silver stress in extremely halophilic archaeon Haloferax alexandrinus DSM 27206.

Background: The extremely halophilic archaeon Haloferax (Hfx.) alexandrinus DSM 27206 was previously documented for the ability to biosynthesize silver nanoparticles while mechanisms underlying its silver tolerance were overlooked. In the current study, we aimed to assess the transcriptional response of this haloarchaeon to varying concentrations of silver, seeking a comprehensive understanding of the molecular determinants underpinning its heavy metal tolerance.

In Vitro Study of Composite Cements on Mesenchymal Stem Cells of Palatal Origin.

Uniform filler distribution in composites is an important requirement. Therefore, BaO glass, nano hydroxyapatite and quartz filler distribution was realized through PCL microcapsules which progressively release filler during matrix polymerization. Two composites were realized based on a complex matrix containing BisGMA, UDMA, HEMA and PEG400 mixed with a previously described mineral filler: 33% for C1 and 31% for C2.

Material Evidence of Sediments Recovered from Ancient Amphorae Found at the Potaissa Roman Fortress.

Methods for material investigation are powerful tools that allow specialists to elucidate important aspects regarding ancient artifacts such as the Roman amphorae deposits discovered at Potaissa Fortress in Turda, Romania. Archeological debate states that the deposit contained olive oil and wine amphorae, but no material evidence has been presented until now. The current research is focused on the most representative large amphora fragments found in the Potaissa deposit, with a significant amount of sediment on their walls, to give archeologists the material proof to elucidate their debate.