Objective To investigate and analyze the clinical application of auto-fluorescence bronchoscopy(AFB).Methods 224 patients (M/F =190/34) performed bronchoscopy were selected and randomly divided into the control group (n =112,M/F =96/16) and observation group (n =112,M/F =94/18).Patients of control group were performed white light bronchoscopy (WLB).Patients of observation group were performed WLB combined AFB.The primary endpoint was masculine rate of pathology biopsy and bleeding after biopsy.The retrospective analysis was performed.Results The masculine rate of carcinoma in situ of the observation group was 3.1％,which of the control group was 1.0％,the difference was statistically significant(x2 =19.761,P ＜ 0.05).The masculine rate of atypical hyerplasia of the observation group was 13.2％,that of the control group was 5.5％,the difference was statistically significant(x2 =21.426,P ＜ 0.05).The category and frequency of arresting bleeding medicine used after biopsy in the observation group was less than the control group,the difference was statistically significant (F =9.574,12.763,all P ＜ 0.05).The time of performed bronchoscopy of the observation group was (33.6 ± 8.4) min,that of the control group was (33.1 ± 9.7) min,the difference was not statistically significant (t =1.348,P ＞ 0.05).Conclusion AFB can improve site-specific accuracy of doubtful focus,improve masculine rate of pathology biopsy,and lessen bleeding after biopsy.

Objective This paper sums up professor Zhang Peiying's clinical experience in diagnosing and treating unstable angina(UA) of coronary heart disease. [Methods]Generalizing the pathogenesis, rules of treatment and principle of diagnosis about UA, through the reference of classical theory of Traditional Chinese medicine and clinical observation. Then analyse professor Zhang Peiying's characteristics about diagnosing and treating UA by two examples of medical record.[Results]Professor Zhang considers deficiency of Qi and stagnation of phlegm is the premise and foundation of UA, holds that stagnation of phlegm, stagnation of blood and spasm of heart vessel are the key causes of the disease and removing blood stasis, relieving spasm of vessel, strengthening the spleen and reducing phlegm is the basic treatment principle. He divides UA into 4 categories: stagnation of heart blood syndrome, stagnation of phlegm and blood syndrome, deficiency of Qi and stagnation of blood syndrome,weakness of Yang with stagnation of phlegm and blood. [Conclusions]Professor Zhang Peiying's scholar thought and clinical experience in diagnosing and treating UA of coronary heart disease is effective. His thought and clinical experience are worth extending and applying.

Objective To explore the curative effect of inhaled tiotropium upon patients of stable chronic obstructive pulmonary disease (COPD) complicated with pulmonary hypertension.Methods A total of 76 patients (Male/Female =51/25) of stable COPD complicated with pulmonary hypertension were recruited from January 2010 to June 2011.According to table of random digit,they were divided into test group (n =38,M/F =26/12) and control group (n =38,M/F =25/13).Patients of control group inhaled formoterol powder 4.5 μg bid,took oral theophylline sustained-release tablets 0.1 g hid.According to the demand of patient's condition,anti-infective agents and sticky phlegm lyticagent were used.Patients of test group inhaled tiotropium dry powder (18 μg,qd) in addition to the above regimen.All changes in six-minute walk test (SMWT),pulmonary arterial systolic pressure and panting symptom score were recorded at the end of 16 weeks and compared with the baseline.The primary endpoint was the changes in exercise capacity as assessed by SMWT and pulmonary arterial systolic pressure.Safety and tolerance were also investigated.Intent-to-treat and per-protocol analyses were performed.Results After a follow-up period of 16 weeks,both pulmonary arterial systolic pressure and panting symptom score decreased and SMWT walking distance increased (45 ± 16) m in the test group.Compared with the control group,the difference had statistical significance (P ＜ 0.05) and obvious adverse reaction did not occur.Conclusions For patients of stable COPD complicated with pulmonary hypertension,inhaled tiotropium dry powder decreases pulmonary pressure to various extents and improves exercise tolerance and panting symptom.And tolerance is satisfactory.

Objective To investigate the curative effects of old age severe chronic obstructive pulmonary disease (COPD) patients inhaled Glucocorticoids with the special devices (Turbuhaler).Methods Seventy-six cases of elderly patients with severe acute exacerbation of COPD patients (53 males,23 females) were divided into experimental group(n =38) and control group(n =38),respectively,according to the random number table.In 10 days of therapy,patients of experimental group inhaled budesonide powder of inhalation 0.2 mg twice daily;Control group inhaled oxygen atomization budesonide suspension 1mg twice daily.The changes of panting symptom were observed.Three months followed-up,the test team inhaled budesonide powder of inhalation 1 mg twice daily,control group stopped inhaling drugs,all patients of panting symptom were observed,also were six-minutes walking distance,the frequency of acute exacerbation and adverse reaction.Intent and compliance program data analysis were performed of the experimental data.Results At the end of the stage of therapy,panting symptom of two group patients were all improved (F =8.746,7.952 respectively,P ＜ 0.05) ; Wheezing score between the two groups 1,5,10 days of treatment differences were not statistically significant(P ＞ 0.05).But the incidence rate of adverse reaction in experimental group was significantly lower than that of control group(x2 =11.372,P ＜0.01),and the treatment costs of test team was significantly lower than that of control group(t =4.573,P ＜ 0.01).At the start of the follow-up period (week 0),two groups of acute exacerbation frequency,wheezing,peak expiratory flow and 6 minutes walking distance had no significant difference(P ＞ 0.05).When follow-up period was at tne end of 12 weeks.The test group of patients with acute exacerbation frequency was significantly lower than the control group(aF within grouP =9.343,aF between groups =16.343,the aF interaction =20.017 ; P ＜ 0.05),wheezing in the control group was significantly mitigate (bF within group =8.537,b F between groups =11.453,bF interaction =13.071 ; P ＜ 0.05),and peak expiratory flow rate than the control group improved significantly (cF within group =9.015,cF between groups =12.426,cF interaction =14.852 ;P ＜ 0.05),6 min walking distance increased significantly compared with the control group (d F within group =12.263,d F between groups =21.371,d F interactive =24.651 ; P ＜ 0.05),the differences were statistically significant.Conclusion Elderly patients with moderate to severe COPD inhaled Glucocorticoids,with the special devices(Turbuhaler),not only in acute exacerbation stage the panting symptom was controlled; but also in stable phase the frequency of acute exacerbation was decreased,and the exercise tolerance was improved.Curative effect is obvious withsafety and well-tolerated.

OBJECTIVE:To establish a method for quick content determination of clobetasol propionate in temeifu pigmentum.METHODS:UV spectrophotometry was used,and the determination was performed at the wavelength of 240nm.RES-ULTS:The detectable concentration of clobetasol propionate have a good linear relationship with its absorbability in the range of 12～18?g/ml.The inter-day and intra-day average recoveries were 99.87%(RSD=1.21%) and 99.79%(RSD=1.01%),respectively.CONCLUSIONS:The present method is rapid and accurate,which can be widely used in small hospitals not equipped with high performance liquid chromatography.

Objective To investigate the possible role of leukocytes, a important cellular component of the blood, in the induction of microcirculatory disturbances in noise-exposed cochleae. Methods Guinea pigs were exposed to a 4 kHz narrow band noise at 115 dB SPL for 4 hours, and the exposed cochleae were collected at 2 or 4 days after the noise exposure. Several techniques (cell viability assay, fluorescent labeling for blood plasma and for hair cell nuclei) were used to examine morphological changes in microvessels in the spiral lamina and in the stria vascularis as well as the hair cell nuclei. Results In noise-exposed cochleae, aggregatad leukocytes were found in the vessels of the spiral lamina. In the up-stream of the vessels with aggregated leukocytes, red blood cells were tightly packed, causing an increase in vessel diameters. Most leukocytes were located within the lumen of vessels, but some of them infiltrated the spiral lamina, usually alongside the vessels. Cell viability, assessed by trypan blue staining, showed that these plugged leukocytes lost their viability. In contrast, no leukocytes aggregated in the vessels of the stria vascularis, nor did leukocytes lose their viability. Conclusion In the cochleae exposed to intense noise, leukocytes were trapped in the vessels of the spiral lamina, leading to disturbance of blood flow. The involvement of leukocytes in local damaging processes and the fate of leukocytes need further studies.

The present paper deals with the effect of impulse noise, which is produced by launching of miniature tactical missiles, on hearing of guinea pigs situated in the control room of the missile launching vehicle. 20 normal hearing guinea pigs are placed in the control room in which impulse noise level is 160-170dB (sound pressure level) and duration is longer than Is. 48h after sound exposure, the mean threshold shift is 2 dB, and threshold shift of 2/40 ears is greater than 10dB. Histological observation reveals that cochlear hair cells are undamaged in 15 ears. Howeves, staining on bloc shows hydrops of cochlear partition in 5 ears.

Objective To observe the 3 years or more effects on optical correction,refraction,and orthokeratology with rigid gas permeable contact lens(RGPCL) wearing in patients with keratoconus.Design Retrospective case series.Participant 73 keratoconus patients(136 eyes) fitted with RGPCL.Methods Patients wearing RGPCL for 3 years or more in Peking University Optometry & Ophthalmology Center were observed.Correct visual acuity was determined before and at 1,2 and 3 years of lens wearing,and the refractive power,corneal curvature,corneal astigmatism and corneal morphological changes were measured with auto-refractomer/keratometer and keratoconus screening analysis system of computer-assisted corneal topography at the same time.The changes of base curve and RGPCL power were also compared.All patients were divided into mild keratoconus group(Group A),moderate and severe keratoconus group (Group B).Main Outcome Measures Visual acuity,refractive power,base curve of RGPCL,corneal topography parameters.Results The patients wore RGPCL for 49.3?15.3 months(36-76 months).At the initial visit,uncorrected visual acuity(UVA) was 3.76?0.45, corrected visual acuity with spectacles(SPVA) was 4.57?0.53,and with RGPCL(RGPVA) was 4.89?0.14.RGPVA was improved significantly (F=171.994,P=0.000).RGPVA at last visit(4.95?0.11) was better than that at initial visit(t=-6.733,P=0.000),which was more significant in group B than that in group A.The rate for RGPVA more than 0.8 at the initial,1 year,2 years and 3 years of lens wearing was 85.13%,86.76%,85.60%and 84.62%respectively.At the initial visit and last visit,the myopia diopters and the corneal astigmatism were 7.13?4.01D vs.6.23?3.42D(P=0.014) and 6.23?3.24D vs.4.42?2.34D(P=0.000) respectively.The RGPCL base curve and lens power were 7.38?0.50 mm vs.7.54?0.42 mm(P=0.000),and -6.22?3.59 D vs.-5.33?3.09 D(P=0.000) respectively. The changes of power and base curve of lens in group B were more significant than that in group A.The decrease of 9 corneal topography parameters between initial visit and last visit was significant statistically(all P

Objective:To investigate the effect of the integrin-linked kinase(ILK) small interfering RNA(siRNA) on prostate cancer in nude mice by orthotopic injection of human cell line DU145.Methods:The cultured human cell line DU145 was knocked down for ILK using a siRNA.Cellular ILK expression was quantified by RT-PCR and Western blot analysis.Moreover,cell attachment,invasiveness and microfilament dynamics assays were performed.Furthermore,the impact of the ILK siRNA on the prostate cancer was tested using a nude mice model in which prostate cancer was induced by orthotopic injection of human prostate cancer cell line DU145.Gross tumor volume of prostate in nude mice,cell differentiation,the state of apoptosis and proliferation were tested after 5 weeks of injection.Results:The expression of ILK was suppressed significantly by siRNA,cellular mRNA and protein of ILK decreased 87% and 81% separately.The knockdown of ILK also induced the attachment and invasiveness of DU145 cell growing down.The tumor volume,cell differentiation,apoptosis index and proliferation index of prostate in nude mice of ILK siRNA orthotopic injection model were significantly smaller,better,increased and decreased separately than those in control group.Conclusion:Targeting inhibition of ILK not only decreases attachment and invasiveness of human DU145 cells,but also suppresses the growth and development of prostate cancer of orthotopic injection human DU145 cell line model in nude mice.

Objective: To establish a RP-HPLC for determination of bergenin in Rodgeris aesculifolia batal from different sources. Methods : Chromatographic conditions were as follows: C 18 column(5?m, 4.6mm?150mm,i.d), was adopted, mobile phase consisted of 25% ethanol and 75% water. The column temperature was set at (30?1)?C. The flow rate was 1.0mL?min -1 and the detection wavelength was at 275nm. Results : The method was proved to be linear in the range of 0.8～4.0?g with a regression coefficient of 0.9993. The average recovery was 99.95% with RSD 3.0%( n =5). The minimum detection limit was 0.1ng. Conclusion : The method is proved to be quick, simple and highly sensitive. There is some relationship between the bergenin contant and different sources of raw materials.