Effectiveness of Virtual Reality-Based Training on Oral Healthcare for Disabled Elderly Persons: A Randomized Controlled Trial.

(1) Background: Virtual reality (VR) technology is a widely used training tool in medical education. The present study aimed to evaluate the effectiveness of VR training of oral hygiene students on providing oral healthcare to disabled elderly persons. (2) Methods: A randomized controlled trial was conducted.

Extraction and isolation of alkaloids of Sophora alopecuroides and their anti-tumor effects in H22 tumor-bearing mice.

Background: Alkaloids of Sophora alopecuroides have good biological activity, and are widely used in clinical settings, which not only have pharmacological activities of anti-cancer, cancer suppression, as well as the inhibition, and killing of various microorganisms; but also possess extensive pharmacological effects on immune system, nervous system and cardiovascular system. The objective of this paper was to extract and isolate total alkaloids of Sophora alopecuroides (TASA), and to study their anti-tumor effects in H22 tumor-bearing mice.

Materials And Methods: TASA were extracted and isolated using thin-layer chromatography, and column chromatography; and the isolated compounds were analyzed using nuclear magnetic resonance.

[Effects of taurine on type I and III collagen expression in rats lung exposed to silica].

Objective: To evaluate the effects of taurine in diet on the expression of type I and III collagen and collagen ratio at different time points in rats lung by image process technology.

Methods: Wistar rats were randomly divided into three groups: the saline instilled with a control diet (the saline treated group); silica instilled with a control diet (the silica treated group); and silica instilled with a diet containing 2.5% taurine (the taurine treated group).