Objective] To observe the diagnosis value of noninvasive diagnosis model S index used to evaluate the fibrosis degree of slight chronic hepatitis B(CHB). [Method] Trace back and investigate the routine serological indicators GGT, PLT, ALB and liver aspiration biopsy results of 63 cases of CHB;use noninvasive diagnosis formula to calculate:S index=1000×GGT/(PLT×ALB2),use ROC curve to analyze and evaluate the clinical diagnosis value of S index. [Result] S index is in positive relation with liver fibrosis degree. S index can forecast the fibrosis having or not with best truncation point 0.04h, the sensitivity 87.0%, specificity 47.5%and area under the curve(AUC) 0.690,close to 0. 7; in forecasting obvious fibrosis, with best truncation point 0.04h, sensitivity 100%,specificity 36.8%,AUC 0.664. [Conclusion] S index used for forecasting slight CHB having or not fibrosis has high value of diagnosis, but it has low correctness for diagnosing having or not obvious liver fibrosis.

[Objective] To optimize the extraction process of Weiyanping granules. [Method]The orthogonal test method was adopted to explore the influences of 4 factors(quantity of water,soaking time,extraction time and times) on the yielding rate of berberine and dry paste rate. [Results]Analysis by synthesis,the optimum condition for extraction was A2B3C1D3.The medicinal substances should be soaked in 10 times water for 2 hours and distilled for 3 times,with 1 hour each time.[Conclusion]The experiment result showed that the optimum extraction process condition was stable,reasonable and economical,which could be used to guide industrialized production.

Objective:To study the optimal process of reflux extraction for lignans from Acanthopanax sessiliflorus roots. Methods:Sesamin as the reference substance, a colorimetric method was used to detect the absorption value of the samples at 558 nm to calculate the content directly. The extraction time, the extraction times and the volume of extraction solvent were applied to optimize the extrac-tion conditions for total lignans by orthogonal experiment. Results:The absorbance had a linear relationship with the amourt of sesamin within the range of 10. 6-53. 0 μg·ml-1(r=0. 999 7). The average recovery of sesamin was 102. 2%(RSD=1. 6%, n=6). The content of total lignans (measurement by sesamin) in the extracts was 10. 0 mg·g-1. The optimum reflux extraction conditions were as follows:adding 40-fold 50 % methanol, extracting once for 30 min. Conclusion:The UV method for determining the total lignans is feasible, stable and reliable as well as precise, and the optimal extraction process is reasonable.

OBJECTIVE To study the correlation between mutations of gyrA and parC genes and ciprofloxacin-(resistant) clinical isolates of Acinetobacter baumannii from Chengdu.METHODS The genes of gyrA and parC DNA in 28 ciprofloxacin-resistant and 2 ciprofloxacin-susceptible isolates of A.baumannii were amplified by PCR and then analyzed by restriction fragment length polymorphism(PCR-RFLP) and DNA sequencing.(RESULTS) Hinf Ⅰ digestion of the gyrA gene products of susceptible isolates(generated) two fragments,but resistant isolates(generated) one fragment.The parC gene products generated 2 fragments.DNA sequencing of 5 resistant isolates revealed mutations in gyrA gene that resulted in amino acid substitutions: Ser83→Leu and Ala88→Thr,especially,Ser83 point mutation accounting for the disappearance of sequence of Hinf Ⅰ.There was not any mutation in(gyrA) of 1 susceptible isolate;the substitution of Ser108→Ile in parC(gene) of 1 susceptible and 1 resistant isolates were identified,the remaining four isolates had more nosense mutations.CONCLUSIONS Compared with parC gene mutations,(gyrA) gene mutations of A.baumannii appears to be the main molecular mechanism responsible for ciprofloxacin resistance.The high-level ciprofloxacin resistance in A.baumannii probably needs a variety of mutations.

Objective:To establish a method for the determination of related substances in enoxacin gluconate injection by HPLC with gradient elution. Methods:HPLC was performed on a DiamonsilTM C18 column (250 mm × 4. 6 mm, 5 μm), the mobile phase A was 0. 025 mol·L-1 phosphonic acid solution (adjusting pH to 3. 0 with triethylamine)-methanol- acetonitrile (80∶10∶10) and the phase B was 0. 025 mol·L-1 phosphonic acid solution (adjusting pH to 3. 0 with triethylamine)-methanol-acetonitrile (350∶325∶325) with gradient elution at a flow rate of 1. 1 ml·min-1 , the detection wavelength was 269 nm and 284 nm, the injection volume was 20μl, and the column temperature was 40℃. Results:Under the HPLC conditions, the samples had good stability and separation. The calibration curve was linear within the concentration range of 19. 80 ng·ml-1-19. 80 μg·ml-1(r=0. 999 9) for 5-hydroxymethylfur-fural with the detection limit of 0. 18ng, and the average recovery was 99. 68% with RSD of 0. 12% (n=9). Conclusion:The method is accurate, sensitive, specific and reproducible, and can be used in the determination of related substances in enoxacin gluconate in-jection.

Cancer is a serious threat to human health with high morbidity and high mortality , using vitro tumor diagnostic reagents can improve the level of diagnosis and treatment.In order to develop the value of in vitro tumor diagnostic reagents in clinical use , this article would analyze “in vitro diagnostic reagents technical guidelines for clinical research” ,“in vitro diagnostic reagents registration” and other laws and regulations ,as well as the development of research in domestic and foreign.To discuss the clinical scheme design and development trend of in vitro tumor diagnostic reagents.

Objective To determine if the shortened exposure of oocytes to sperm can influence the insemination rate and the results of IVF-ET. Methods A total of 217 women were included.They were divided into study group (105 cases) and control group (112 cases). In study group the shortened insemination was used.The oocytes were washed 2 hours after the insemination and transferred into the fresh medium.In control group the classical procedure was used.The oocytes were inseminated by ICSI.The number of retrieved oocytes,fertilized oocytes,the number of embryos were counted and the pregnancy rate was evaluated. Results There was no statistically significant difference between the study and control group in the number of retrieved oocytes (1163 vs 1752),number of embryos (1084 vs 1097),and pregnancy rate ( 42.9% vs 42.9%). Conclusions The shortened exposure of oocytes to sperm is a simple and effective way in IVF-ET.

Objective To observe the pulmonary X-ray changes of malignant malaria.Methods The chest routine X-ray examination in 86 cases with malaria in company with respiratory tract symptoms such as fever was performed,the pulmonary changes were obsenved.Results Of 86 cases, 58 cases were abnormal on chest filmes,including lung framework marked in 33 cases,miliary,small or large patchy shadow in 24 cases and multiple round opaque mass lesion in one case.Conclusion The pulmonary X-ray changes of malignant malaria are varied,the common characteristic is that most of them are situated at middle and lower portion of the lungs.This may attribute to blood dynamic abnormality resulting from malaria protozoan and the pathological changes of involved tissues.

The authors explained in the first place the challenges facing hospitals in the new century. These include: impact of the reform of the social security system on hospitals; impact of China's accession to the WTO on domestic hospitals; and impact of people's diversified needs on the construction of hospitals. Then the authors set forth some development strategies for hospitals in the new century. These include: ①establishment of new concepts; ②reinforcement of awareness in four aspects, viz. management awareness, competition awareness, service awareness, and innovation awareness; ③stress on the systematic nature of hospital construction, viz. market-and battlefield-oriented adjustment of the layout of disciplines, construction of the contingent of talents in accordance with the needs of the market, and enhancement of medical quality in light of new quality concepts; ④establishment of a flexible and highly efficient management mechanism, viz. setting up a speedy and highly efficient decision-making procedure and an individual-centered management mechanism, reforming the distribution mechanism in line with the rules of the market economy, and finding ways for the government to solve the problem of funds compensation for non-profit hospitals.

Objective To study the effect of Cap Nimodipine on the treatment of three kinds of cerebrovascular disease included acute ischemic cerebrovascular disease(AICVD),subarachroid hemorrahage(SAH),and multiple infarct dementia(MID).Method 103 cases were orally given cap nimodipine 30mg tid/d ,for 18 monthes. The efficacy was assessed by a double-blind placebo-controlled trial.Results ⑴ AICVD treating group comparing to placebo group, there was significant difference in effective rate,(P0 1).⑵SAH treating group compared with placebo group,we revealed that the cerebrovascular system (CVS) event rate and death rate decreased markedly (P