2% of newly formed bone (SD 4.0). Differences between the controls and the scaffolds cultured for 14 days were significant, but there was no significant difference between static and dynamic culturing. Mineralized collagen scaffolds did not show bone formation in any group. There was learn more a significant difference in the expression of OC within the scaffolds submitted to static versus dynamic culturing in the CaCO(3) scaffolds. VEGF expression did not show significant differences between static and dynamic Culturing in the two biomaterials tested. It is concluded that within the limitations of the study the type of biomaterial had
the dominant effect on in vivo bone formation in small tissue-engineered scaffolds. The culture period
additionally affected the amount of bone formed, whereas the type of Culturing may have had a positive effect on the expression of osteogenic markers but not on the quantity of bone formation. (C) 2008 Wiley Selleck GDC973 Periodicals, Inc. J Biomed Mater Res 90A: 429-437, 2009″
“A subset of frontotemporal dementia cases are neuropathologically defined by tau-negative, TAR DNA-binding protein-43, and ubiquitin-positive inclusions in the brain and are associated with mutations in the progranulin gene (GRN). Deep sequencing of families exhibiting late-onset dementia revealed several novel variants in GRN. Because of the small size of these families and limited availability of samples, it was not possible to determine whether the variants segregated with the disease. Furthermore, none of these families had autopsy confirmation of diagnosis. We sought to determine if these novel GRN variants alter progranulin CUDC-907 in vivo (PGRN) protein stability, PGRN secretion, and PGRN cleavage in cultured cells. All the novel GRN variants behave like PGRN wild-type protein, suggesting that these variants represent rare polymorphisms. However, it remains possible that these variants affect other aspects of PGRN function or represent risk factors for dementia when combined with other modifying genes. (C) 2013 Elsevier Inc. All rights reserved.”
“Plasma
phospholipid transfer protein (PLTP) mediates both net transfer and exchange of phospholipids between different lipoproteins. Animal studies have shown that it is closely related to the development of atherosclerosis. Although many studies have indicated that PLTP activity is increased in diabetes mellitus, the role of PLTP in diabetes is still unclear. To evaluate the influence of a high-fat meal on PLTP activity, 50 nondiabetic patients with coronary heart disease (CHD), 50 insulin-treated Type 2 diabetics, and 50 healthy controls were included. We determined PLTP activity before and 4 and 8 h after a high-fat meal. As expected, serum PLTP activity was significantly higher in CHD patients than in healthy controls (71.0 +/- A 46.2 vs. 54.0 +/- A 33.8 pmol/mu l/h, P = 0.032) at baseline.