Localization of MG_7 antigen was investigated in situ by immunohistochemic and immunoclectron microscopic technique in 62 cases of gastrointestinal carcinoma (GICA). The detective rate of MG_7 antigen was 80. 77% in gastric carcinoma (21/26 cases) and 94.44% in colorectal carcinoma (34/36 cases). Its expressing intensity and distribution were associatcd with the differentiation of tumor cells. Most of the poorly differentiated tumors showed much stronger MG_7 antigen expression and cytoplasmic staining, while most of the differentiated tumors showed membranic or mixed staining, mainly distributed in lumen side. Immunoelectronimicroscopic study revealed that MG_7 antigen predominantly existed in lumen margin microvilli, cell membrane and cytoplasm bencath the cell membrane in well differentiated tumor cells, existed in secretory granules, Golgicomplex and endoplasmic reticulum in poorly differetiatd tumor cells. The finding suggest that MG_7 antigen be a kind of secretory substance syntheszed by GICA cells. The mutual relationship between MG_7 antigen localization and tumor cell differetiation as well as its clinical significance were also discussed.

OBJECTIVE:To provide reference for enhancing and standardizing the storage,dispensing and clinical use of the photophobic drug. METHODS:The management system and directory of photophobic drugs were set up in our hospital,and photo-phobic drug were classified into drugs used away from light strictly and drugs used away from light appropriately. Special training for nursing staff and monthly inspection of photophobic drug storage and use by inspection group could help finding problems and doing timely rectification. The number of wards where the problems of clinical photophobic drug use were found were compared be-fore and after management. RESULTS & CONCLUSIONS:After 3-quarter management,the quantity of wards with problems de-creased from 69 to 2,decreasing by 97.1%. The management reinforce of photophobic drug can effectively promote the manage-ment of drugs to be standard and scientific and improve the safety and effectiveness of photophobic drug use.

By furthering microbiology experiment reform,enforcing "high starting point,high efficiency,high quality"teaching,adjusting teaching contents,reforming teaching methods,establishing and promoting testing system,a new microbiology experiment curriculum system is to be established with the basic knowledge and skills as basic contents and cultivating creative ability as central contents.This will motivate the students' interests for microbiology experiment,which helps them to improve their ability of thinking independently and creatively as well as their practicing ability.

Asian Continental Ancestry Group ; Humans ; Language ; Medicine, Chinese Traditional ; Translations

Based on collecting data at home and abroad, we combined clinical practice of scientific researches. We also summarized key points for design and evaluation of clinical studies in treating children's attention deficit hyperactivity disorder by Chinese medical new drugs from objective and design, selection of diagnostic criteria, recruitment and dropping-out of subjects, effectiveness evaluation, safety evaluation, drug combination, and quality control, and so on. We hope to provide reference for design and evaluation of clinical studies by Chinese medical new drugs.
Attention Deficit Disorder with Hyperactivity ; drug therapy ; Biomedical Research ; Child ; Clinical Studies as Topic ; Data Collection ; Drugs, Chinese Herbal ; therapeutic use ; Humans

Gender-related differences in drug pharmacokinetics have frequently been considered as potentially important determinants for the clinical effectiveness of drug therapy. Major molecular factors involved in drug disposition include drug-metabolising enzymes and drug transporters. Oxidative drug metabolism by cytochrome P450 (CYP) enzymes is a major pathway for drug elimination. CYP3A4,the major human drug-metabolizing CYP enzymes,has repeatedly been suggested higher metabolic activity in women than that in men,which sex-dependent secretory patterns of growth hormone that may be responsible for.

Adenocarcinoma ; pathology ; Apoptosis ; drug effects ; Cell Line, Tumor ; Cell Survival ; drug effects ; Dose-Response Relationship, Drug ; Humans ; Nucleosides ; administration & dosage ; pharmacology ; Proto-Oncogene Proteins c-akt ; antagonists & inhibitors ; Pyridazines ; administration & dosage ; pharmacology ; Stomach Neoplasms ; pathology

To further explore the result of bilingual teaching in pediatrics,we randomly chose 200 undergraduates of 4 class and released students'questionnaires about bilingual teaching with teaching content before and after class to assess students'understanding of bilingual teaching and analysed appraisal result.We found no significant difference of student score between students accepting bilingual teaching and not accepting the bilingual teaching,but there was difference for English tests and expression level.So we think that students can fully accept the bilingual teaching of pediatrics under the premise with selecting appropriate teaching methods and means.

Adolescent ; Adult ; Female ; Health Status ; Humans ; Male ; Medical Staff ; Middle Aged ; Occupational Health ; Risk Factors ; Sampling Studies ; Surveys and Questionnaires ; Young Adult

Ceramics ; Ergonomics ; Female ; Humans ; Male ; Occupational Exposure ; Workload