A robust, direct, rapid and non-destructive X-ray diffraction crystallography method for detecting the Tibetan medicine Zuotai is presented. Powder samples of Zuotai, cinnabar and calomel were unambiguously characterized using powder X-ray diffractometry (PXRD) by comparing a practical identification of metacinnabar in the analyzed material, which confirmed the present of metacinnabar in Zuotai. At the same time, 11 strong lines in the fingerprint of Zuotai were selected to indicate the effective constituents of Zuotai, which were listed in the form of d-( I/I0 )%: metacinnabar 3.356 4/100, 2.061 4/55.0, 2.911 8/35.0, 1.760 1/37.0, 1.339 5/12.0, 1.304 5/10.0, 1.192 0/10.0, 1.683 4/7.0, 1.458 0/5.6. sulfur 3.824 4/100, 3.197 5/40.2, 3.442 2/38.1, 3.095 6/19.7, 5.690 9/16.8, 2.851 0/16.3, 2.414 4/11.3. The results showed that mercury chemical state is metacinnabar with sulfur in Tibetan medicine Zuotai. This method should be supplemented to quality control of rare traditonal Chinese medicine.
Drugs, Chinese Herbal ; chemistry ; Medicine, Tibetan Traditional ; Tibet ; X-Ray Diffraction

Aged ; Anesthesia, General ; Dentures ; Esophagoscopes ; Esophagus ; surgery ; Foreign Bodies ; Humans ; Male

Behcet's Disease is a chronic systemic disorder characterized by recurrent oral and genital ulcerations, ocular inflammation, having manifestations related to skin and joints. Neurologic signs can also be observed seldomly during the course of the disease. In this report a case of Behcet's disease with neurological involvement was presented.

Hamartoma ; Humans ; Laryngeal Diseases ; Male ; Middle Aged

Equipment Failure ; Foreign Bodies ; etiology ; Humans ; Trachea ; Tracheostomy ; instrumentation

Child ; Female ; Humans ; Lipoma ; complications ; Pharyngeal Neoplasms ; complications ; Polysomnography ; methods ; Sleep Apnea, Obstructive ; etiology

Objective To investigate the prevalence of children dental fluorosis in drinking-water-borne endemic fluorosis areas in Liaoning province and to evaluate the disease prevention effects of water improvement measures.Methods Haicheng city,Linghai city,Faku county,Fumeng county,Liaoyang county and Jianping county six endemic fluorosis diseased counties (cities) of Liaoning province were included in the study in September 2011.In each county,3 water improvement villages were selected as survey points.In each surveyed village,children aged 8-12 were generally surveyed the prevalence of dental fluorosis.One tap water sample was collected in each surveyed village for determination of water fluorine.level.Results A total of 786 children aged 8-12 were examined; 110 of them were found with dental fluorosis; detection rate of dental fluorosis was 14.0％ ; no defect case of dental fluorosis was found,and dental fluorosis index was 0.27.Among the cases,very mild were 76 cases,and the detection rate was 9.7％; mild 33 cases,the detection rate was 4.2％; moderate 1 case,the detection rate was 0.1％; and no severe case.Four cases were in the eight-year-old group,accounting for 3.6％ of the total number of cases; 20 in the 9-year-old group,accounting for 18.2％ ; 26 in the 10-year-old group,accounting for 23.6％; 32 in the 11-year-old group,accounting for 29.1％; and 28 in the 12-year-old group,accounting for 25.5％.The differences of detection rates of dental fluorosis of children in each age groups were statistically significant (x2 =13.57,P ＜ 0.05).Water fluoride of the 18 water samples ranged from 0.34 to 2.03 mg/L; 77.8％ (14/18) of the water improvement areas reached the control standard for endemic fluorosis areas.Conclusion The prevalence of dental fluorosis in the areas with high fluoride in drinking water remains high,the measures of water improvement should be strengthened.

Abstract: Fifteen novel ligustrazine-tetrahydroisoquinoline derivatives were designed and synthesized according to the association principle of pharmaceutical chemistry. The structures were identified by IR, NMR and ESI-MS. The inhibitory activities of platelet aggregation induced by ADP and AA have been measured by Bron method. Preliminary pharmacological results showed that compounds 7g, 7h and 7n had potent inhibitory activity against platelet aggregation induced by AA, and the compound 7o showed significant inhibitory activity against platelet aggregation induced by ADP.
Drug Design ; Platelet Aggregation ; drug effects ; Platelet Aggregation Inhibitors ; chemical synthesis ; chemistry ; Pyrazines ; chemical synthesis ; chemistry ; Tetrahydroisoquinolines ; chemical synthesis ; chemistry

Adult ; Carcinoid Tumor ; pathology ; Ear Neoplasms ; pathology ; Ear, Middle ; pathology ; Female ; Humans

OBJECTIVETo study the effect of herbal compound 861 (HB861) on expression and activity of nitric oxide synthase (NOS) in hepatic stellate cells (HSC), and to explore the feasibility of its application in preventing and treating the early portal hypertension.

METHODSHSC of HSC-T6 cell line (1 x 10(5)/ml) were cultured in dish with 95% O2 plus 5% CO2 under 37 degrees C for 24 hrs, then divided into 5 groups, 6 dishes in each group. Group A was the blank control group. To Group B-E, HB861 2 mg/ml, HB861 4 mg/ml, HB861 8 mg/ml, HB861 4 mg/ml + NW-Nitro-L-Arginine Methyl Ester (L-NAME)4 mg/ml were added separately, and continuously cultured for 24 hrs. NOS activity was measured using colorimetry, NO level was determined by nitrate reductase technique. The cells were fixed by 4% paraformaldehyde for 2 hrs for test HSC-T6 iNOS expression by immunocyto-chemical method.

RESULTSHB861 in 2 mg/ml, 4 mg/ml and 8 mg/ml could increase HSC-T6 NOS activity from 1.7 +/- 0.1 to 2.5 +/- 0.3, 3.5 +/- 0.4 and 3.7 +/- 0.9 respectively (P < 0.01), the NO levels in supernatant were increased in parallel from 56.1 +/- 4.8 to 90.7 +/- 4.6, 99.7 +/- 4.1 and 109.0 +/- 2.7 respectively (P < 0.01). L-NAME could not inhibit the effect of HB861 in increasing the synthesis and secretion of NO by activated HSC-T6. Immuno-cyto-chemical study showed that there was iNOS expression in cytoplasm, and which could be increased by HB861.

CONCLUSIONThe activated HSC-T6 showed positive iNOS expression, suggesting it could produce NO. HB861 could markedly increase HSC-T6 iNOS expression and NOS activity, enhance the NO synthesis and secretion, it also could inhibit the contractility of activated HSC by way of increase HSC to secrete NO, so as to lower the resistance in hepatic sinusoid, therefore would play important role in preventing and treating of early portal hypertension.

Animals ; Cells, Cultured ; Drug Combinations ; Drugs, Chinese Herbal ; pharmacology ; Hepatocytes ; enzymology ; Hypertension, Portal ; prevention & control ; Nitric Oxide ; biosynthesis ; Nitric Oxide Synthase ; biosynthesis ; metabolism ; Rats ; Rats, Sprague-Dawley