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Aim: To compare the blood glucose control of patients with type 2 diabetes mellitus (T2DM) with different treatment methods, oral hypoglycemic agents (OHA) monotherapy, insulin injection and combined therapy (OHA + insulin injection) and evaluate their satisfaction with the medical care. Methods: A total of 1512 T2DM patients were assessed, to compare the effects of different treatment methods on glycemic control in T2DM patients, the influencing factors of patients' satisfaction with medical care measures and their relationship with glycemic control. Fasting plasma glucose (FPG), 2 hrs postprandial plasma glucose (2hPG) and HbA1c were measured as the standard of the glycemic control. Satisfaction was defined using the simplified version of DAWN of chronic disease care patient scale (PACIC - DSF). Results: In this study, the FPG compliance rate, 2hPG compliance rate and HbA1c compliance rate were 25.5%, 22.7% and 19.5%, respectively. The differences in the glycemic control compliance rates of different treatment methods were not statistically significant. The total score of PACIC - DSF was 34.54±11.65(p>0.05), and the influencing factors included fast blood glucose (FBG) and 2hPG, 2hPG and PACIC - DSF were negatively correlated. Conclusions: The T2DM glycemic control rate in China is currently low. From the score of the PACIC - DSF, there is no significant difference in general satisfaction with medical care measures in different treatments. What is more, education level, occupation and exercise of patients with type 2 diabetes had influence on PACIC - DSF score. Different treatment methods have no influence on the glycemic control of patients with T2DM. FPG value and the 2hPG value are negative correlation with the satisfaction of patients in medical care measures. [ABSTRACT FROM AUTHOR]

1,2,5-Triol derivatives with vicinal chiral centers have been synthesized from simple starting materials by one-pot method in good yields and with an excellent enantioselectivity. This process was promoted by a chiral secondary amine and iridium(I) cocatalyzed three-component reaction of aryldiazoacetates and alcohols with enals as electrophiles followed by a reduction with NaBH4. Iridium(I)-associated oxonium ylide intermediates were efficiently generated and successfully trapped by the amine-activated enals via a selective 1,4-addition manner, generating enantioselective three-component coupling products. [ABSTRACT FROM AUTHOR]

Abstract: This research is aimed to develop a nanomicelle delivery system in order to enhance the solubility and stability of camptothecin (CPT) in aqueous media. In this case, α,β-poly[(N-carboxybutyl)-l-aspartamide] (PBAsp)–CPT was conjugated by the esterification between PBAsp and 20-OH of CPT, and hence used to fabricate nanomicelles with a particle size between the pore size of blood capillary in normal tissue and that in tumor tissue. It was worthy of note that the drug-loaded system of PBAsp–CPT nanomicelle improved the solubility and stability of CPT in aqueous media. However, with an increase of the CPT loading in PBAsp–CPT, the solubility sharply decreased. Meanwhile, the sizes of PBAsp–CPT nanomicelles showed a tendency of increase. Moreover, the drug release of PBAsp–CPT nanomicelles displayed a linear sustaining profile, and hence resulted in the essential decrease of cytotoxicity to L929 cell line. The assembled nanomicelles based on the PBAsp–CPT conjugates showed a great potential as polymer prodrug of tumor therapy, and the controlled nano-scale might achieve the passive tumor targeting. [Copyright &y& Elsevier]

Abstract: To design peptide-targeted iron oxide as magnetic resonance imaging (MRI) contrast agents, amino-functionalized magnetic nanogels were prepared by using N-(2-aminoethyl) methacrylamide hydrochloride (AEM·HCl) as monomer via new photochemical approach. Their chemical structure and composition were characterized by Fourier transform infrared spectra (FTIR) and thermogravimetric analyses (TGA). The core–shell structure of magnetic nanogels was confirmed by high-resolution transmission electron microscopy (HRTEM). The good storage stability, high magnetic content (88.7%), high saturation magnetizations and superparamagnetic behavior suggested their great potentials as MRI contrast agents, which were confirmed by their measurements of r 2 and coronal image of the crossing of mouse kidney. [Copyright &y& Elsevier]

Abstract: The aim of research is to develop and optimize delivery system for cis-dichlorodiammine platinum(II) (CDDP) based on polymer–metal complex nanomicelles with controllable particle size in order to achieve the passive tumor targeting. In particular, graft copolymers, mPEG–g-α,β-poly [(N-amino acidyl)-dl-aspartamide] (mPEG–g-PAAsp) were synthesized by the ring-opening reaction of polysuccinimide with mPEG-NH2 (M w: 2000 and 5000Da), and then with l-aspartic acid and l-glutamic acid, respectively. mPEG–g-PAAsp–CDDP complex nanomicelles were fabricated from mPEG–g-PAAsp and CDDP. The formation of mPEG–g-PAAsp–CDDP nanomicelles was confirmed by fluorescence spectrophotoscopy, electrical conductivity and particle size measurements. It was found that all the nanomicelles showed spherical shapes with clear core-shell structures and narrow size distributions. Their sizes ranged from 80 to 160nm, suggesting of their passive targeting potential to tumor tissue. With the increase of the molecular weight of mPEG, the sizes of mPEG–g-PAAsp–CDDP micelles showed a tendency to increase. mPEG–g-PAAsp–CDDP nanomicelles showed linear gradual drug release profiles in 40h, suggestion of their sustained drug release behaviors. Compared with CDDP, mPEG–g-PAAsp–CDDP micelles showed essential decreased cytotoxicity to Bel-7402 cell line. [Copyright &y& Elsevier]