Co-delivery of antineoplastic and protein drugs by chitosan nanocapsules for a collaborative tumor treatment.

Although combination delivery (co-delivery) shows much superiority in the defect compensation of single-agent therapy, the construction and application of co-delivery systems are still challenging, especially for protein-based joint systems. In this work, a series of chitosan (CS)-amino acid derivatives (Arg-CS, Lys-CS, and Phe-CS) with different degrees of substitution (DS) were synthesized to prepare CS nanocapsules (CNCs) using a simple emulsification method in the presence of linoleic acid (LA). The hydrophobic drug can be loaded in LA droplets, and a positively charged protein stabilized the optimized Arg-CS nanocapsules (Arg-CNCs) on their negative surfaces.

[Diagnosis of Muscular Dystrophy Using Western Blot with Micro-sample of Muscle].

Objective: To diagnose muscular dystrophy using Western blot (WB) by improving the method of the protein extraction.

Method: Firstly,we compared the effect of different sample buffer solutions and processing Methods on the extraction of muscle protein in rats,then selected the appropriate extracting method and the process of the muscular protein.

Results: We put the selected sample buffer into the micro-sample,then mixed.

[Clinical features and StAR gene mutations in children with congenital lipoid adrenal hyperplasia].

This article reported the clinical manifestations, steroid profiles and adrenal ultrasound findings in two unrelated Chinese girls with lipoid congenital adrenal hyperplasia (LCAH). Direct DNA sequencing and restriction fragment length polymorphism (RFLP) analysis were used to identify the mutations of steroidogenic acute regulatory protein (StAR) gene. The two patients with 46,XX karyotype, presented hyperpigmentation, growth retardation, and hyponatremia.

First case report of medium-chain acyl-coenzyme A dehydrogenase deficiency in China.

Medium-chain acyl-coenzyme A dehydrogenase deficiency (MCADD) is an autosomal recessive inborn error of mitochondrial fatty acid β-oxidation, caused by mutations in the ACADM gene. As it is the most commonly inherited disorder of the mitochondrial fatty acid oxidation in Caucasians, there are no related reports in China diagnosed by molecular genetic testing. We report here the case of a 2-year-old female patient who had hepatomegaly and abnormal liver function with a common illness, and who had been healthy before.

The performance of thiol-terminated PEG-paclitaxel-conjugated gold nanoparticles.

A series of thiol-terminated polyethylene glycol (PEG)-paclitaxel (PTX) derivatives are designed and synthesized to fabricate PTX-conjugated gold nanoparticles (PTX@GNPs) and improve their overall performance. By extending the molecular weight of PEG from 400 to 1000 Da, the optimized water solubility of the conjugate reaches 184 mg/mL, equal to 4.6 × 10(5) times that of PTX alone (0.

Neuroendocrine and haemodynamic changes in single-lead atrial pacing and dual-chamber pacing modes.

Objectives: Neuroendocrine and haemodynamic changes were compared between single-lead atrial (AAI) or dual-chamber (DDD) pacing modes in patients with sick sinus syndrome, in a crossover study.

Methods: Inpatients scheduled for their first pacemaker implantation were screened for the following inclusion criteria: sick sinus syndrome; intact atrioventricular conduction; normal QRS interval. All study patients were implanted with a dual-chamber pacemaker, programmed for AAI or DDD pacing mode.

Computational approach to seasonal changes of living leaves.

This paper proposes a computational approach to seasonal changes of living leaves by combining the geometric deformations and textural color changes. The geometric model of a leaf is generated by triangulating the scanned image of a leaf using an optimized mesh. The triangular mesh of the leaf is deformed by the improved mass-spring model, while the deformation is controlled by setting different mass values for the vertices on the leaf model.

[Impact of proton pump inhibitor omeprazole on the antiplatelet effect of clopidogrel in individuals with various CYP2C19*2 genotypes].

Objective: To investigate the impact of omeprazole on platelet response to clopidogrel and the effect of polymorphisms of CYP2C19 on the antiplatelet effect of clopidogrel.

Methods: Platelet aggregation (PA) was assessed before 300 mg aspirin plus 300 mg loading dose of clopidogrel and after 300 mg aspirin plus 75 mg maintenance dose of clopidogrel 7 days later in 414 patients with acute coronary syndrome who have undergone percutaneous coronary intervention (PCI). Thereafter, gastric mucosal protective drugs were given (omeprazolem 20 mg, n=224 or cimetidine 800 mg, n=190).

Determinants of quality of life in people with epilepsy and their gender differences.

Improving the patient's quality of life (QOL) is the most important goal of epilepsy management. We performed this study to determine the factors associated with QOL in people with epilepsy and to assess whether there are gender differences in these determinants. Patients were interviewed using the Quality of Life in Epilepsy Inventory-31(QOLIE-31), the Adverse Event Profile (AEP), the Self-Rating Anxiety Scale (SAS), and the Hamilton Depression Rating Scale (HAMD).

[Upgrading to resynchronization therapy in patients with heart failure after chronic right ventricular apical pacing].

Objective: To investigate the clinical efficacy of cardiac resynchronization therapy (CRT) through biventricular pacing in chronically right ventricular apical paced patients with heart failure.

Methods: Ten chronically right ventricular apical paced patients with left ventricular ejection fraction (EF) ≤ 35% underwent CRT upgrading. And the follow-up period was over 12 months.

Coexistence of 2 types of atrial tachycardias and right ventricular outflow tract tachycardia.

Double tachycardia is a relatively uncommon type of tachycardia. In this report, we discuss a 68-year-old woman with history of frequent palpitations. Electrophysiologic study revealed that narrow QRS tachycardias from 2 origins and 1 wide QRS tachycardia were induced and each of the tachycardias was induced by the other.

[Factors associated with quality of life in epileptics and the variations between men and women, younger and older people].

Objective: To determine factors associated with quality of life (QOL) in epileptics and the variations between men and women, younger and older people.

Methods: A total of 204 patients (160 younger, 49 older; 125 men, 79 women) were interviewed by the quality of life in epilepsy-31 (QOLIE-31), side effect profile (SEP), self-rating anxiety scale (SAS) and Hamilton depression scale (HAMD). Medical and socio-demographic data were acquired from patient records.

Quality of life and related factors in Chinese adolescents with active epilepsy.

Background: Studies from developed countries illustrate that adolescents with epilepsy have a higher frequency of behavioral problems than healthy or chronically ill control groups. In China, where public perception of epilepsy is relatively unfavorable, the impairment of quality of life (QOL) and its related risk factors in adolescents with epilepsy is unknown.

Methods: To identify the level of QOL and related factors among adolescents with epilepsy in China, we conducted a case-control study of 47 pairs of active adolescents with epilepsy and matched normal controls.

Nonlinear ultrasonic nature of organic liquid and organic liquid mixture.

Based on Jacobson's molecular free length theory in liquids and the relationship between ultrasonic velocity and the molecular free length in organic liquids, this paper deduces the equations for pressure coefficient and temperature coefficient of ultrasonic velocity and nonlinear acoustic parameter B/A in both of organic liquid and organic liquid binary mixtures. These nonlinear acoustic parameters are evaluated against the measured results and data from other sources. The equations reveal the connections between the nonlinear acoustic parameters and some internal structural of the medium or mixtures e.