Bioequivalence study of two formulations of terazosin hydrochloride capsule in healthy Chinese subjects under fasting and fed conditions.

Objective: This study was conducted to assess the pharmacokinetic and safety profiles between a new oral formulation of terazosin hydrochloride capsule compared with the brand-name drug.

Materials And Methods: A randomized, open-label, single-dose, 2-period crossover study under fasting or fed conditions was conducted in healthy Chinese subjects. 24 individuals were selected, respectively.

Physalin B induces G2/M cell cycle arrest and apoptosis in A549 human non-small-cell lung cancer cells by altering mitochondrial function.

Physalin B (PB) is one of the major constituents of Physalis alkekengi var. franchetii, a well-known Chinese traditional herb. In this study, we demonstrated for the first time that PB exhibits significant antiproliferative and apoptotic activity in A549 human lung cancer cells in a concentration-dependent and time-dependent manner.

Development of a simple LC-MS/MS method for the determination of febuxostat in human plasma and its application to a bioequivalence study.

The purpose of this study was to design a simple, sensitive and rapid liquid chromatography-tandem mass spectrometry (LC-MS/MS) method for a febuxostat bioequivalence study in healthy Chinese male volunteers. In this method, febuxostat and etodolac (internal standard) were isolated from plasma samples by protein precipitation with acetonitrile. The supernatant was chromatographed on a Zorbax SB-C18 (150 x 3.

Comparative bioavailability and pharmacokinetics of sirolimus tablets in healthy Chinese volunteers.

Objectives: Although sirolimus tablets and oral solutions have been used in clinical practice, no study has been reported on the pharmacokinetics and bioavailability of a single-dose of sirolimus tablets in healthy Chinese volunteers. The purpose of this study was to compare the bioavailability and pharmacokinetic (PK) properties of two different 1-mg sirolimus tablets in healthy Chinese male volunteers and evaluate whether a generic tablet of sirolimus meets the criteria for bioequivalence from the State Food and Drug Administration (SFDA) of China when compared with a reference product.

Materials And Methods: A total of 24 healthy Chinese volunteers was eligible for this 6 mg single dose, randomized-sequence, open-label, 2-period crossover study.

[Expression of RRM1 and ERCC1 genes in tumor tissues and peripheral blood lymphocytes of advanced non-small cell lung cancer].

Objective: To investigate the expression of RRM1 and ERCC1 genes in tumor tissues and peripheral blood lymphocytes of advanced non-small cell lung cancer (NSCLC).

Methods: Tissue and peripheral blood samples were collected from 49 advanced NSCLC patients treated with gemcitabine plus carboplatin. The expressions of RRM1 and ERCC1 mRNA in tumor tissue and peripheral lymphocytes were detected by real-time fluorescent quantitative PCR.

Discovery of potent, orally active compounds of tyrosine kinase and serine/threonine-protein kinase inhibitor with anti-tumor activity in preclinical assays.

Traditional medicines have become the most productive source of leads for drugs development, particularly as anti-cancer agents. Various screening approaches are being applied. Sorafenib, a multikinase inhibitor, is used to treat primary kidney cancer (advanced renal cell carcinoma) and advanced primary liver cancer.

RRM1 gene expression in peripheral blood is predictive of shorter survival in Chinese patients with advanced non-small-cell lung cancer treated by gemcitabine and platinum.

Objective: To evaluate the predictive values of gene expressions of ribonucleotide reductase M1 (RRM1) and breast cancer susceptibility gene 1 (BRCA1) in peripheral blood from Chinese patients with non-small-cell lung cancer (NSCLC) treated with gemcitabine plus platinum.

Methods: Forty Chinese patients with advanced NSCLC were recruited and received gemcitabine 1 200 mg/m(2) on Days 1 and 8 plus carboplatin AUC 5 on Day 1. RRM1 and BRCA1 expression levels in peripheral blood were detected by quantitative reverse transcription-polymerase chain reaction (RT-PCR).

High-performance liquid chromatography-mass spectrometric analysis of ramipril and its active metabolite ramiprilat in human serum: application to a pharmacokinetic study in the Chinese volunteers.

This study presents a rapid, specific and sensitive LC-MS/MS assay for the determination of ramipril and ramiprilat in human serum using enalapril as an internal standard (IS). A Waters Atlantis C18 column (2.1 mm x 100 mm, 3 microm) and a mobile phase consisting of 0.