Life Sci J 2012;9(4):5588-5592] (ISSN: 1097-8135). http://www.lifesciencesite.com. 830″
“Introduction: Passive fit has been considered an important requirement for the longevity of implant-supported prostheses. Among the different steps of prostheses construction, casting is a feature that can influence the precision of fit and consequently the uniformity of possible deformation among abutments upon the framework connection.\n\nPurpose:

This study aimed at evaluating the deformation of abutments after the connection of frameworks either cast in one piece or after soldering.\n\nMaterials and Methods: A master model was used to simulate a human mandible with 5 implants. Ten frameworks were fabricated on cast models and divided into 2 groups. Strain gauges were attached to the mesial and distal sides of the abutments to capture their deformation LY3039478 click here after the framework’s screw retentions were tightened to the abutments.\n\nResults: The mean values of deformation were submitted to a 3-way analysis of variance that revealed significant differences between procedures and the abutment side. The results showed that none of the frameworks presented a complete passive fit.\n\nConclusion: The soldering procedure led to a better although uneven distribution of compression strains on the abutments. (Implant Dent 2013;22:193-198)”
“Background

& objectives: Cerebral hypoxia is known to be involved in many neurodegenerative diseases such as Alzheimer’s and cerebrovascular dementia. The present study was designed to investigate the effects of flavonoids from aerial part of Scutellaria baicalensis Georgi (SSF) on potassium cyanide (KCN) -induced hypoxic cytotoxicity in rat pheochromocytoma cell line PC12, and to understand the probable mechanism.\n\nMethods: The rat pheochromocytoma cell line PC12 was subjected to hypoxia by 200 mu M KCN for 30 min. The cytotoxicity of KCN was assessed by cell viability assay, morphological observation, lactate dehydrogenase (LDH) release, malondialdehyde

(MDA) production, GKT137831 clinical trial and the activities of superoxide dismutase (SOD) and Na+-K+-ATPase measurements. The effects of SSF on the changes induced by KCN in PC12 cells were detected.\n\nResults: Treatment of PC12 cells with 200 mu M KCN for 30 min increased cell death when compared with control, as assayed by MTT reduction, morphological observation and lactate dehydrogenase release measurement. These cell lesions were accompanied by disorders in SOD and Na+-K+-ATPase activities as well as MDA production. In contrast, the PC12 cells pre-treated with SSF for 24 h prior to 200 AM KCN exposure have shown protection against hypoxic toxicity. The KCN – induced decreased cell viability and activities of SOD and Na+-K+-ATPase, as well as increased MDA production were reversed by SSF pre-treatment.