A central composite design (CCD) was used to study the influence of four independent variables,
namely pH, hydrolysis temperature (degrees C), Selleck MK-5108 substrate concentration (w/v) and enzyme/substrate (w/w) ratio on the degree of hydrolysis (DH%). The hydrolysis was carried out using different combinations of four hydrolytic parameters at five levels for 6 h. The CCD consisted of 24 experimental points and six replicates of the central points. The data were analyzed using Design-Expert Software. The results showed that all of the variables evaluated significantly influenced the DH% in a second polynomial model, and different combinations of parameters were generated to obtain three different levels of DH (30%, 40% and 50%), namely PKCPH 30, PKCPH 40 and PKCPH 50. The PKCPH with different DH% showed significantly different antiradical properties (p <
0.05). The PKCPH 50 preparation had the lowest EC50 value for DPPH radical scavenging capacity (0.14 mg/ml). In the ABTS(.+) radical scavenging capacity and PCL-ACW (photo chemiluminescence-antiradical capacity of water soluble substances) assays, PKCPH 50 showed the highest Trolox equivalent antioxidant capacity value (326.67 +/- 5.77 mu mol TEAC/g) and ascorbic acid equivalent value (11.43 +/- 0.03 mu g AAE/mg) of the preparations tested. Moreover, the protein hydrolysates also exhibited a notable reducing effect in a dose-dependent manner. Optimum conditions for enzymatic hydrolysis of PKCP were established in this study to produce an antiradical agent. SCH772984 ic50 (c) 2012 Elsevier B.V. All rights reserved.”
“The aim of this study was to analyze Cytoskeletal Signaling inhibitor the clinical characteristics of thoracic ossified ligamentum flavum (OLF) and to elucidate prognostic factors as well as
effective surgical treatment modality. The authors analyzed 106 thoracic OLF cases retrospectively from January 1999 to December 2008. The operative (n = 40) and the non-operative group (n = 66) were diagnosed by magnetic resonance imaging (MRI) and/or computed tomography (CT) imaging. We excluded cases exhibiting ventral compressive lesions causing subarachnoid space effacement in thoracic vertebrae as well as those with a coexisting cervical compressive myelopathy. Those in the operative group were treated with decompressive laminectomy as well as resection of OLF. The preoperative neurologic status and postoperative outcomes of patients, as indicated by their modified Japanese Orthopedic Association (mJOA) scores and recovery rate (RR), Modic changes, the axial (fused or non-fused) and sagittal (omega or beak) configurations of OLF, and the ratios of the cross-sectional area (CSA) and anteroposterior diameter (APD) of the most compressed level were studied. The most commonly affected segment was the T10-11 vertebral body level (n = 49, 27.1%) and the least affected segment was the T7-8 level (n = 1, 0.6%). The ratios of the CSA in non-fused and fused types were 77.