The study aims to identify related substances in orlistat pharmaceutical substance from different production technologies. Advanced technologies including UPLC-QTOF-MS and UPLC-QTrap-MS were used and the structures or molecules of 10 kinds of related substances in orlistat were identified. The experimental data were valuable to the quality control and development of orlistat.
Anti-Obesity Agents ; analysis ; chemistry ; Chromatography, High Pressure Liquid ; Drug Contamination ; Lactones ; analysis ; chemistry ; Quality Control ; Spectrometry, Mass, Electrospray Ionization ; Tandem Mass Spectrometry

Objective] To explore Ma Dazheng professor Chinese medicine treatment for the treatment of leukorrhagia. [Methods] Ma ’s treatment of gynecological disease discusses perspectives and clinical experience in terms of academic pathogenesis, treatment, therapies, their basic prescription compatibility and subtraction of the common CD features are summarized.[Results] Ma Dazheng professor applied lishi, tonifying spleen qi, kidney spleen, heat detoxification treatment, heat treatment and water as the main syndromes, pixu(spleen deficient), spleen kidney Yang deficiency type and the wet poison down, had clinical curative effect. [Conclusion] Ma Dazheng professor according to the characteristics of the patients in the process of treating leukorrhagia, syndrome differentiation and treatment, obtained the clinical accuracy and good curative effect, the gynecological clinical diagnosis and treatment had a good guiding significance, worthy of our in-depth study and understanding.

Objective To understand the knowledge of sexual and reproductive health of undergraduates with different nationalities and provide scientific basis for sexual and reproductive health education in the nationalities university.Methods A self-developed questionnaire about sexual,reproductive health and sexual attitude was used to carry out investigation among 2 200 freshman.Results Formal education (family and school) do not become the main source of the sex knowledge; there were statistic significance of the comparison of sexual,reproductive knowledge and sexual attitude among minority undergraduates and Han nationality undergraduates,as well as among undergraduates from different minorities.Conclusions The undergraduates are thirsty for gaining general sexual knowledge from school and family during the period of university.It is necessary to improve sexual and reproductive knowledge through various ways for minority undergraduates.

Objective To study the traditional Chinese medicine treatment in headache in menstruation of Ma Dazheng professor. [Methods]The paper expounds Professor Ma’s experience in treating headache in menstruation by analyzing the etiology, pathology, summaring the clinical thoughts and citing some typical cases. [Results]After the syndrome differentiation methods fitting which were from Ma Dazheng professor of TCM, good resulets have been achieved in the each model headache of dialectical classification. [Conclusion]The causes of headache have a lot, but according to the characteristics of the patients with the clinical syndrome differentiation, choosing precision wil get very good curative effect, it is a good guide for clinical treatment in a headach in menstruation.

Alkaloids are a kind of natural nitrogen compounds which are widespread in the nature, with special and significant activities in pharmacology. In recent years, immunoassay techniques have been applied for the qualitative and quantitative analysis of alkaloids from traditional Chinese medicine (TCM). However, preparation and identifica-tion of artificial antigen with good immunogenicity are necessary and important for establishment of immunoassay for alkaloids from TCM. This paper summarized the designing ideas and procedures for preparation of artificial antigen and identification for the conjugates of alkaloids and carrier protein, in order to provide reference point for establish-ment and application of immunoassay techniques.

Toll-like receptors are an important pattern recognition receptors that recognize specific components of microbes and certain host molecules.Through initiated cell signaling pathway,they can induce immunocyte.Their activation triggers the innate immune response,and is crucial to the successful induction of Th1/Th2-phenotyped adaptive immunity.This review will give a brief overview of our current knowledge of TLRs as key components in immune responses and their regulation in respiratory tract diseases such as asthma.

The concentration of 5 nucleosides, uracil, uridine, guanidine, adenine and adenosine in culture of Paecilomyces hepialid was determined by the developed method of HPLC. The HPLC method was performed on a Waters SunFire C18 (4.6 mm x 250 mm, 5 μm) column with methanol-water gradient elution as the mobile phase. The detection wavelength was 260 nm and the colunmn temperature was controlled at 30 °C. The linear range was 10.00-200.00 mg · L(-1) (r = 0.9994) for uracil, 10.10-202.00 mg · L(-1) (r = 0.9992) for uridine, 10.00-200.00 mg · L(-1) (r = 0.9991) for guanidine, 10.30-206.00 mg · L(-1) (r = 0.9992) for adenine and 10.45-209.00 mg · L(-1) (r = 0.9991) for adenosine, respectively. The RSD of precision was 0.032%, 0.035%, 0.039%, 0.049%, 0.00080%, respectively. The average recoveries of uracil, guanidine, adenine, and adenosine were 97.34%, 99.10%, 101.6%, 98.61% and 100.2% with RSD of 1.3%, 2.1%, 0.96%, 0.95%, and 1.3% respectively. The method showed high sensitivity, good selectivity, linearity and repeatability, which was suitable for the content analysis of 5 nucleosides components in P. hepialid and its extracts.
Chromatography, High Pressure Liquid ; methods ; Nucleosides ; analysis ; Paecilomyces ; chemistry

Intracytoplasmic sperm injection,which combined with in vitro fertilization and micromanipulation techniques,has been applied to research the molecular mechanisms of fertilization,and produce the sexing livestock and transgenic animals.The research advances in porcine intracytoplasmic sperm injection,including in vitro maturation and pretreatment of oocytes,selection and treatment of spermatozoon,artificial activation of injected oocytes after injection,and improvement of the operation technique were reviewed.

The pathological changes of high intensity focused ultrasound(HIFU) for organ ablation involve three periods:acute stage,subacute stage and chronic phase.The pathological characteristics include hyperemia,edema,and coagulative necrosis of tissues,tissue proliferation,recovery,the infiltration of fibroblast and formation of scar tissue.This paper introduced the bioactive mechanism of HIFU,effects of HIFU on human and animals,indicating HIFU technique can damage target organs and tissues of human and experimental animals,which has specific biological effect.And it has great potentials to treat benign and malignant tumor and chronic pain.

Objective To understand current situation of surgery grading management in 22 hospitals from Beijing Municipal Administration of Hospitals,and to discuss the problems and to make suggestions for better application and management.Methods Based on general survey,Surgery of Grading Conditions of All Municipal Hospitals was issued to 22 municipal hospitals to make related staff fill related data.Results Except for 3 specialty hospitals,19 hospitals have launched the surgery grading management,while they are in different steps of implementing hierarchical directory,surgeon permission and dynamic management.These hospitals have different reference standards of making hierarchical directory.84.2％ hospitals give surgeons authorities according to levels of operations evaluated by professional title,surgery grade and doctors' technical skills.There are 14 hospitals applying information management on surgery grading.Conclusion Uniform criteria of hierarchical directory,extension of surgeon permission system and implementation of surgery grading information management will contribute to regulation fulfillment.