Effect of molecular weight of tyramine-modified hyaluronan on polarization state of THP-1 and peripheral blood mononuclear cells-derived macrophages.

The immunomodulatory properties of hyaluronan and its derivatives are key to their use in medicine and tissue engineering. In this work we evaluated the capability of soluble tyramine-modified hyaluronan (THA) synthesized from hyaluronan of two molecular weights (low M = 280 kDa and high M = 1640 kDa) for polarization of THP-1 and peripheral blood mononuclear cells (PBMCs)-derived macrophages (MΦs). We demonstrate the polarization effects of the supplemented THA by flow cytometry and bead-based multiplex immunoassay for the THP-1 derived MΦs and by semi-automated image analysis from confocal microscopy, immunofluorescent staining utilizing CD68 and CD206 surface markers, RT-qPCR gene expression analysis, as well as using the enzyme-linked immunosorbent assay (ELISA) for PBMCs-derived MΦs.

ABO blood groups and increased risk for the development of vascular involvement in Behçet's disease.

Objectives: Inflammatory endothelial activation is a prominent feature of vascular involvement in Behçet's disease (BD), which is usually accompanied by a thrombotic tendency. Recent studies suggest an association between ABO blood groups and thrombotic vascular disease in those carrying non-O (A, B, and AB) groups. This study aimed to analyse the contribution of ABO blood groups to the vascular involvement in BD.

Effect of the low-intensity pulsed ultrasound therapy on healing of Achilles tendinopathy in a rat model.

Objective:  This study aimed to investigate the effect of the low-intensity pulsed ultrasound (LIPUS) on the healing of Achilles tendinopathy in a rat model induced by type 1 collagenase.

Methods:  The study was conducted on 144 Achilles tendons of 72 Wistar albino female rats with typical activity and weighing 300-350 g. The model of Achilles tendinopathy was created by injecting type 1 collagenase.

The impact of curfews on emergency departments and orthopedic traumas.

Background: The aim of our study was to investigate the impact of curfews imposed due to the COVID-19 pandemic on emergency department visits, orthopedic trauma frequencies, and types of trauma.

Methods: In this single-center, retrospective cohort study, a total of 16,242 patients, including 3,020 trauma patients, were admitted to level 1 trauma center emergency department between April-June 2020 and 2021 (curfew group) and between April-June 2018 and 2019 (control group). Patients were separated according to emergency department triage categories and trauma mechanisms, and the changes in the days of curfew were analyzed.

AAT: does it have a place in acute leukemia?

In this study, the authors aimed to investigate the change of AAT, its effect on the response to induction and its effects on the treatment process in acute myeloid leukemia and acute lymphoblastic leukemia patients. This study included 94 patients who were hospitalized and followed up in Istanbul Training and Research Hospital, Hematology Clinic, between October 2019 and December 2021. Patients with a complete response had higher serum AAT levels than those with a non-complete response (p < 0.