[Chemical analysis of classical prescription Qianghuo Shengshi Standard Decoction by UHPLC-Q Exactive Orbitrap MS].

A UHPLC-Q Exactive Orbitrap MS method was used to analyze the chemical constituents of the classical prescription Qianghuo Shengshi Standard Decoction(QHSS). UHPL conditions were as follows: Waters~(TM) UPLC~(TM) HSS T3 C_(18) column(2.1 mm×100 mm, 1.

Correction: Polygalacturonase gene pgxB in Aspergillus niger is a virulence factor in apple fruit.

[This corrects the article DOI: 10.1371/journal.pone.

Polygalacturonase gene pgxB in Aspergillus niger is a virulence factor in apple fruit.

Aspergillus niger, a saprophytic fungus, is widely distributed in soil, air and cereals, and can cause postharvest diseases in fruit. Polygalacturonase (PG) is one of the main enzymes in fungal pathogens to degrade plant cell wall. To evaluate whether the deletion of an exo-polygalacturonase gene pgxB would influence fungal pathogenicity to fruit, pgxB gene was deleted in Aspergillus niger MA 70.

Evaluation of Safety and Efficacy of Qinming8631 DR Implantable Cardiac Pacemaker in Chinese Patients: A Prospective, Multicenter, Randomized Controlled Trial of the First Domestically Developed Pacemaker of China.

Background: High cost of imported pacemakers is a main obstacle for Chinese patients suffering from bradyarrhythmia, and a domestically developed pacemaker will help lower the burden. This study aimed to evaluate the safety and efficacy of Qinming8631 DR (Qinming Medical, Baoji, China), the first domestically developed dual-chamber pacemaker of China, compared with a commercially available pacemaker Talos DR (Biotronik, Berlin, Germany) in Chinese patients.

Methods: A prospective randomized trial was conducted at 14 centers in China.

[Latent structure model evaluation of syndrome elements and features in 826 hypertriglyceridemia patients].

Objective: To evaluate main Chinese medical syndrome elements and features of hypertriglyceridemia patients.

Methods: Using latent structure model (LSM) method, the latent structure diagram of 826 hypertriglyceridemia patients were established. Hypertriglyceridemia syndrome elements and features were interpreted by using latent probability, conditional probability, mutual information, and cumulative information coverage to quantify symptoms/syndromes data,as well as using manual interpretation methods.

Biomass and carbon dynamics of a tropical mountain rain forest in China.

Biometric inventories for 25 years, from 1983 to 2005, indicated that the Jianfengling tropical mountain rain forest in Hainan, China, was either a source or a modest sink of carbon. Overall, this forest was a small carbon sink with an accumulation rate of (0.56+/-0.

Comparison of bolus remifentanil versus bolus fentanyl for blunting cardiovascular intubation responses in children: a randomized, double-blind study.

Background: The authors found no study to compare the efficacy of bolus dose fentanyl and remifentanil blunting the cardiovascular intubation response in children, so they designed this randomized, double-blind clinical study to assess the effects of remifentanil 2 microg/kg and fentanyl 2 microg/kg by bolus injection on the cardiovascular intubation response in healthy children.

Methods: One hundred and two children, the American Society of Anesthesiologists (ASA) physical status 1-2 and scheduled for elective plastic surgery under general anesthesia, were randomly divided into one of two groups to receive the following treatments in a double blind manner: remifentanil 2 microg/kg (Group R) and fentanyl 2 microg/kg (Group F) when anesthesia was induced with propofol and vecuronium. The orotracheal intubation was performed using a direct laryngoscope.

Evaluation of traditional Chinese herbal medicine: Chaihu (Bupleuri Radix) by both high-performance liquid chromatographic and high-performance thin-layer chromatographic fingerprint and chemometric analysis.

Chaihu (Bupleuri Radix), roots of Bupleurum chinense and B. scorzonerifolium, is an authentic Chinese Materia Medica in the Chinese Pharmacopoeia. Some other species such as the roots of B.

[Establishment of a system of using cephalometrics to predict difficult intubation].

Purpose: Difficult airway is one of the main problems which attract much attention from the anesthesiologists, many clinical standards are used to predict the patient's airway, but the investigation of using radiological measurements to predict difficult intubation is seldom carried out. This study combined the previous researches to establish a system of using cephalometrics to predict difficult intubation.

Methods: Patients who underwent general anesthesia were involved with preoperative cephalometric examination.