Objective To observe the therapeutic effect of Laparescopic Cholecystectomy(LC) on acute calculous cholecystitis.Methods The data from 35 patients receiving laparoscopic cholecystectomy for acute calculous cholecystitis were analyzed.Results Successful rate of operation was 100% in all cases with no complications such as biliarducy injury,intestines damage and hemorrhage taken place,and mortality was 0%.Conclusion LC is safe for treatment of acute calculous cholecystitis.

Eighty six patients with influenza-like diseases were randomly assigned to trial group (n=42,oseltamivir 75 mg,twice daily for 2 days)and control group(n=44,osehamivir 75 mg,twice daily for 5 days).The results showed that there Was no statistical difierence in the duration of fever between trial groups[(56±14)h]and control group[(54±13)h,P=0.623],the cost of the trial group[(193±38)yuan]Was 189 yuan less than that in the control group[(382±61)yuan,P=0.016].It is suggested that the efficacy of two-day course of oseltamivir is the same as that of five-day course in tlle treatment for influenza-like diseases,but with lower cost.

Objective To observe the electroretinogram (ERG) photopic negative response (PhNR) of idiopathic macular hole (IMH) in stage 2 by vitrectomy with or without internal limiting membrane peeling (ILMP).Methods Twenty-three stage 2 IMH patients (23 eyes) were enrolled in this prospective study.All patients received the best corrected visual acuity (BCVA),optical coherence tomography and flash-ERG examinations.The patients were randomly divided into group A (11 eyes,vitrectomy) and B (12 eyes,vitrectomy with ILMP).There was no significant difference in BCVA (t=0.96,P=0.350),diameter of macular hole (MH) (t=3.21,P=0.580) and the PhNR amplitude (t=0.98,P=0.353) in group A and B.All patients underwent 25G vitrectomy,ILMP was carried out in group B.The follow-up time was 3 to 6 months,with the mean follow-up time of 4.3 months.BCVA,MH closure rate and PhNR amplitude in group A and B were analyzed before and after surgery.Results Three months after surgery,10 eyes (90.9％) gained MH closure but 1 eye (9.1％) failed in group A.In group B,12 eyes (100.0％) gained MH closure.There was no significant difference in MH closure rate between the two groups (P=0.462).The mean BCVA of group A and B was 0.69 ± 0.24 and 0.65 ± 0.22,there was no significant difference between the two groups (t=0.49,P=0.722).The amplitude of PhNR in group A was (36.647.4) μtV,which was lower than the pre-surgery PhNR,but the difference was not significant (t=0.73,P=0.472).The amplitude of PhNR in group B was (27.1 ± 12.4) μV,which was lower than that the presurgery PhNR,and the difference was significant (t =3.56,P =0.002).The difference of PhNR amplitude in group A and B was statistically significant (t=2.17,P=0.042).Conclusion Compared with non-ILMP,vitrectomy combined with ILMP will significantly reduce the PhNR amplitude ofIMH in stage 2.

AIM: To explore the mechanisms of resistance to 5-fluorouracil(5-FU) in human colon cancer cells.METHODS: 5-FU-resistant cell lines were established and their IC50 were calculated by detection of cell survival rate.Western blotting was performed to analyze the expression of several proteins,by which the possible mechanisms of acquired resistance to 5-FU were determined in human colon cancer cells.RESULTS: The resistant cells were resistant to 5-FU-induced S phase arrest as well as the expression of DNA damage marker-phosphor-histone H2A.X.Furthermore,data demonstrated that over-expression of Bik,Bcl-Xs,and Bcl-XL proteins were observed in 5-FU-resistant cell lines.However,the DLD1/Bcl-XL cells were only partially resistant to 5-FU-induced apoptosis,but not 5-FU-induced S phase arrest and phosphor-histone H2A.X.CONCLUSION: Over-expression of Bcl-XL protein certainly contributes to acquired 5-FU resistance in human colon caners,but has no effect on 5-FU-induced DNA damage and cell cycle disorder,suggesting that other mechanisms are involved in acquired resistance to 5-FU in human colon cancer.

Objective To investigate and analyze the status quo of professional identity of nursing students with different educational backgrounds.Methods With stratified-cluster random sampling,635 students were surveyed using the nursing students' professional identity questionnaire.Results The total score of professional identity of junior college nursing students was significantly higher than that of undergraduate students.Junior college nursing students had a higher score in professional knowledge dimension than undergraduate and graduate students,while the score of nursing undergraduate students was higher than that of graduate students.Junior college nursing students had a higher score in professional will dimension than undergraduate and graduate students.Nursing graduate students had a higher score in professional expectation dimension than junior college and undergraduate students,while the score of undergraduate students was higher than that of junior college students.Whatever the educational background,professional skill and professional expectation were the top two dimensions,while professional knowledge and professional emotion were the last two dimensions.The difference was statistically significant between the answers of nursing students with different educational backgrounds to the following questions,such as which is the most probable factor affecting your learning enthusiasm,who has the greatest impact on your professional thought about nursing and which nursing field are you most willing to go in for.There was significant difference in professional identity score between different grades of junior college and undergraduate nursing students,while there is no significant grade difference in graduate students.Conclusions There were some differences of professional identity of nursing students with different educational backgrounds.Nursing educators should carry out the professional education according to the student's educational backgrounds.

Objective To investigate the clinical efficacy of selenium-enriched garlic on patients with oligoasthenospermia.Methods From October 2012 to August 2013,160 patients with oligoasthenospermia were randomly divided into two groups.Treatment measurements for 80 patients in the control group included oral treatment of Shengjing capsules 1.6 g/time Tid,Vit-E soft capsules 100 mg/time Tid,and took Vit-B 0.2 g/time Tid,for three months.Treatment measurements for 80 patients in the treatment group included oral treatment of selenium-enriched garlic in addition to all the above,for three months.We observed the changes of the semen quality indexes (including semen volume,sperm density,motility,survival rate,etc.) of two groups before and after treatment.Results Sperm quality was improved after treatment in both groups.All indices in the treatment group were significantly higher than those in the control group (P ＜ 0.05).Conclusions For patients with male infertility caused by oligoasthenospermia,The use of combination of selenium-enriched garlic and Shengjing capsules can improve the quality of sperm.

Objective To observe the therapeutic efficacy of 6% hydroxyethyl starch 130/0.4 (trade name: voluven) and polygeline on dog with hemorrhagic shock and their effect on immune function of red blood cells (RBC). Methods Eighteen dogs were randomized into three groups (n=6 in each group): normal sodium group, voluven group and polygeline group. Hemorrhagic shock models were set up according to Wiggers’ method. The mean arterial pressure value was bled to (45.56?3.69) mmHg within 10 min and maintained at this level for 60 min. Subsequently the dogs were resuscitated with normal saline or voluven or polygeline. The hemodynamics were measured before and 60 min after shock and 10, 30 and 60 min after infusion. The concentrations of MDA in plasm, C3b receptor garland rate (RBC-C3bRR) and RBC immune complexes garland rate (RBC-ICR) were measured. Results At 60 min after shock, MAP and CO were significantly lower than these before shock (P

Objective: To apply fuzzy clustering analysis to determination of 10 inorganic elements and Cu/Zn ratio in 13 kinds of traditional Chinese medicine cured for vascular disease. Methods: By FAAS (flame atomic absorption spectrometry) sodium, calcium, magnesium, potassium, iron, chromium, nickel, manganese, copper and zinc were determined. By range analysis, correlation coefficients and relative fuzzy matrix were calculated.Results: Correlation coeffieients ? were mostly in the range of 0.55～0.80, especially ?=0.95 between Buzhangnaoxintong Capsule and Xinbao Pill. Conclusion: On condition that trace and macro elements are relatively rich and clustering correlation coefficients are larger, therapentic effects among traditional Chinese medicines cured for vascular disease are also similar. This suggests that trace elements, macro elements and Cu/Zn ratio have much to do with therapeutic effect.

Objective In order to eliminate the influences caused by temperature and electrode-polarization, a new circuit of measuring electrical conductivity of water is designed by AT89S52 single-chip. Methods The system adopts the bi-directional pulsed voltage as its exciting source and the DS18B20 sensor as temperature compensation circuit component. Results Three functions which include auto-control, signal-collecting and display are realized by using C51 high-level language to write the modularization program. The precision of system is improved by an auto-temperature compensation way to avoid the blindness of temperature coefficient. Conclusion The system has such advantages as high accuracy and simple operation. Through further fulfilling, it can accord with user applying.