Tissue-derived extracellular vesicles: Research progress from isolation to application.

Extracellular vesicles (EVs) are the structures that all cells release into the environment. They are separated by a lipid bilayer and contain the cellular components that release them. To date, most studies have been performed on EVs derived from cell supernatants or different body fluids, while the number of studies on EV isolation directly from tissues is still limited.

Cryptococcosis manifesting as isolated biliary infection: Case report and brief review of literature.

Background: Biliary cryptococci infection is rare, which is frequently diagnosed by exploratory laparotomy, preoperative diagnosis is difficult.

Case Presentation: A 14-year-old girl presented with intermittent jaundice for 6 years. She had no pruritus, anorexia, nausea or vomiting, fever, abdominal pain, or clay stools.

Controllable preparation of ternary superparamagnetic nanoparticles dual-doped with Mn and Zn elements.

Superparamagnetic iron oxide nanoparticles (SPIONs) with high saturation magnetization are successfully synthesized via thermal decomposition method by doping Mn and Zn elements simultaneously. The synthesis procedure was modified according to the thermal stabilities of the precursors, in order to ensure that the stoichiometry of the synthesized samples can be retained exactly from the starting ratios of the Fe/Mn/Zn in the initial precursors. As a result, the saturation magnetization of the dual-doped nanoparticles increased about 23% compared to that without the dopants.

Magnetic responsive hydroxyapatite composite scaffolds construction for bone defect reparation.

Introduction: In recent years, interest in magnetic biomimetic scaffolds for tissue engineering has increased considerably. A type of magnetic scaffold composed of magnetic nanoparticles (MNPs) and hydroxyapatite (HA) for bone repair has been developed by our research group.

Aim And Methods: In this study, to investigate the influence of the MNP content (in the scaffolds) on the cell behaviors and the interactions between the magnetic scaffold and the exterior magnetic field, a series of MNP-HA magnetic scaffolds with different MNP contents (from 0.

Facile synthesis of monodisperse superparamagnetic Fe3O4/PMMA composite nanospheres with high magnetization.

Monodisperse superparamagnetic Fe(3)O(4)/polymethyl methacrylate (PMMA) composite nanospheres with high saturation magnetization were successfully prepared by a facile novel miniemulsion polymerization method. The ferrofluid, MMA monomer and surfactants were co-sonicated and emulsified to form stable miniemulsion for polymerization. The samples were characterized by DLS, TEM, FTIR, XRD, TGA and VSM.

Effects of magnetic field on the antioxidant defense system of recirculation-cultured Chlorella vulgaris.

Little is known about the influence of magnetic fields (MF) on growth of microalgae such as Chlorella vulgaris, which has been consumed as health food for various nutritional and pharmacological effects. This preliminary study investigated whether static MF can modulate the antioxidant system in C. vulgaris by exposing the cells to static MF generated by dual yoke electromagnets with magnetic flux density of 10-50 mT for 12 h.

[Relationship between the quantities of virus and the models of serologic markers in patients infected with HBV].

Objective: To explore the relationship between the quantities of HBV and the models of serologic markers.

Methods: Real-time fluorescent quantitative PCR was used to measure the HBV DNA and ELISA was used to detect the antigen/antibody of HBV.

Results: The patients whose HBV copies were more than 10(3)/ml accounted for 87.