(Lamiaceae, Premnoideae), a remarkable new species from north Myanmar.

A remarkable new species from Myanmar, Y.H.Tan & Bo Li (Lamiaceae), is here described and illustrated.

Essential Oil of Chenopodium ambrosioides Induced Caspase-Dependent Apoptosis in SMMC-7721 Cells.

Objective: To investigate the inhibition of cell proliferation by essential oil of Chenopodium ambrosioides on the human liver cancer SMMC-7721 cells and human liver LO2 cells,and to study the mechanism of anti-tumor in vitro.

Methods: The inhibition of cell proliferation by essential oil of Chenopodium ambrosioides was determined by MTT assay; the distribution of cell cycle was analyzed by flow cytometry( FCM) with PI staining; cell morphology and apoptosis effect of SMMC-7721 cells were observed by microscope; the apoptotic rate was quantified by FCM with Annexin V / PI double staining.

Results: Essential oil of Chenopodium ambrosioides could significantly inhibit the cell proliferation in a concentration-time-dependent manner( P < 0.

[Association between awareness of smoking-related evidence and smoking cessation treatments provided by hospital chest physicians in Guangzhou, China: a multi-institutional cross-sectional survey].

Objective: Factors associated with smoking cessation interventions initiated by hospital chest physicians in China had not been studied. We examined if the physicians' awareness of emerging evidence regarding negative effects of smoking was associated with the initiation of smoking cessation.

Methods: A cluster randomized cross-sectional survey was conducted from July 2011 to August 2011 in hospital-based chest physicians (n = 354) in Guangzhou, China.

Association between awareness of harmful effects of smoking and smoking cessation advice provided by hospital chest physicians in Guangzhou, China: a multi-institutional cross-sectional survey.

Background And Objective: It is unknown which factors are associated with smoking cessation interventions initiated by hospital chest physicians in China. We examined physicians' awareness of negative effects of smoking on smoking cessation advice given.

Methods: A cluster randomized cross-sectional survey was conducted from July to August 2011 in hospital chest physicians (n = 354) in Guangzhou, China.

Multimodal optical microscopy in combination with gold nanorods for cancer cell imaging.

The multimodal optical imaging technique, which utilizes nonlinear and linear optical processes, plays an important role in biological and biomedical research. As second-order nonlinear phenomenon, the two-photon luminescence (TPL) results from the nonlinear excitation of fluorescent molecules, while the second harmonic generation (SHG) depends on the second order nonlinear polarization, orientation, and noncentrosymmetric properties of molecules. In contrast, the linear resonance light scattering (RLS) occurs when the molecules are excited by a light beam with a wavelength close to their absorption bands.

[Applications of near infrared reflectance spectroscopy in detecting chitin, ergosterol and mycotoxins].

The invasion extent and harmfulness of fungi can be determined by chitin, ergosterol and mycotoxins. It is important to monitor chitin, ergosterol and mycotoxins changes to prevent contamination of forage and feed products, and effectively control the sustainable development of the mildew. Predication of these chemical materials was often completed by laboratory analysis, which was time-consuming and cumbersome and could not reflect the results in time in the past.

[Etiology and a diagnostic protocol for patients with chronic cough].

Objective: The spectrum and frequency of causes and the diagnostic protocol for chronic cough were explored.

Methods: A total of 194 patients with at least 3 weeks of chronic cough and normal chest radiographs were recruited from the outpatient clinic of Guangzhou Institute of Respiratory Diseases between July 2003 to June 2004. The causes were investigated using a well-established protocol.