Background Nd: YAG laser posterior capsulotomy is an important way for after cataract.Usually the patient will use glucocorticoid eye drops to treat the anterior chamber inflammation after operation,but there is potential risk of elevating intraocular pressure (IOP).Objective This study was to compare the clinical effectiveness and safety of loteprednol etabonate ophthalmic suspension,tobramycin+ dexamethasone eye drops and fluorometholone eye drops following Nd: YAG laser posterior capsulotomy.Methods A randomized-controlled clinical trail was performed.One hundrcd and seventy-onc cycs of 127 paticnts who received Nd: YAG laser posterior capsulotomy for after cataract were randomly divided into four groups.Loteprednol etabonate ophthalmic suspension,fluorometholone eye drops,tobramycin+dexamethasone eye drops and systane eye drops was topically administered respectively in the four groups after laser posterior capsulotomy and 6 times per day for 5 days.IOP was measured with Goldmann tomometer 1 hour before operation and 1 hour,1 day,3 days and 7 days after operation.The ocular anterior segment inflammatory response was examined under the slit lamp and scored based on the Peizeng criteria.Written informed consent was obtained from each patient before any relevant medical procedure.Results The IOP was (18.2 ±4.7),(20.1 ±5.7),(18.7±5.5),(19.0 ±4.1),(19.5 ±3.5) mmHg in various time points in the loteprednol etabonate group; (18.7 ±5.3),(20.9±5.7),(21.3±4.5),(21.0±4.9),(22.5±6.5) mmHg in the fluorometholone eye drops group ; (17.9± 6.3),(20.3 ± 6.1),(23.0 ± 3.7),(24.7 ± 4.9),(24.5 ± 6.5) mmHg in the tobramycin +dexamethasone group and(18.4±6.3),(20.7±3.7),(22.7±6.5),(19.6±4.8),(18.5±3.5) mmHg in the systane group,showing a significant difference among the 4 groups (Fgroup =3.876,P =0.023).With the time lapse,the IOP was gradually reduced in the loteprednol etabonate group and systane group,but that in the fluorometholone group and tobramycin+dexamethasone group was elevated,showing a significant difference among them (Ftime =3.801,P =0.031).No any ocular and systemic adverse effect was found in various groups.The percentage of grade 1 and 2 of aqueous inflammatory cells was lower in the loteprednol etabonate group and tobramycin+dexamethasone group than the fluorometholone group and fluorometholone group and systane group(H =8.276,P =0.012).The percentage of Ⅰgrade of aqueous flare was 8％ in the loteprednol etabonate group,22％ in the fluorometholone group,18％ in the tobramycin+dexamethasone group and 30％ in the systane group,with a significant difference among them (H=9.305,P=0.000).Conclusions The use of corticosteroid eye drops can relieve the inflammatory response of ocular anterior chamber after Nd: YAG laser posterior capsulotomy.Loteprednol etabonate ophthalmic suspension has a better anti-inflammatory effect and less influence on IOP.

In order to study the association of each item of a health examination and lifestyles with health-related quality of life (HRQoL), a cross-sectional survey by a self-administered questionnaire using the 12-Item Short Form Health Survey (SF-12, version 1) was conducted on 145 government managers that took health examinations in Tongji Hospital, Wuhan, China during 2005. The results showed that the determinations of organic functions including BMI, hemoglobin, blood platelet count,urine protein, urine WBC and lipid metabolism (LDL) were associated with HRQoL. The lifestyle items including age, sex, life satisfaction, drinking alcohol and kind of alcohol drunk, drinking tea,sleep quality and adhering to bedtime, working overtime, work stress were associated with HRQoL in the multiple regression models. Sex, age and life satisfaction were the lifestyle items most closely associated with HRQoL, while LDL, hemoglobin and urine protein were the health examination items most closely associated HRQoL. This study revealed that both lifestyle and health examination items were associated with HRQoL.

Irritable bowel syndrome(IBS)is a common functional intestinal disease,and its etiology and pathogenesis are not completely clear. The pathogenesis of IBS involves disturbed gastrointestinal motility,gut hypersensitivity,intestinal inflammation,immune dysfunction and brain-gut axis abnormality. Cathepsin S(CTSS)is a proteolytic enzyme widely distributed in various cell lysosomes,and participates in a variety of pathophysiological processes. Recent studies have shown that CTSS may be involved in the pathogenesis of IBS. This article reviewed the advances in study on role of CTSS in IBS.

Objective To evaluate the optimal administration regimen of flomoxef for the bacterial infection based on pharmacokinetic/pharmacodynamic (PK/PD) models.Methods A literature search was conducted in PubMed to capture the pharmacokinetic data of flomoxef.Minimum inhibitory concentrations (MICs) were determined using two-fold agar dilution method.The percent time that drug concentration exceeds the minimum inhibitory concentration (％fT＞MIC) was used as the PK/PD indicator correlated with efficacy.Monte Carlo simulation was employed to determine the appropriate regimens of flomoxef based on the probability of target attainment (PTA) against the clinical isolates of strains.Results The regimens of 1 g q6 h,1 g q8 h and 1 g q12 h with 1 hour infusion at 70％ of ％ fT＞MIC achieved 93.1％,89.1％ and 66.8％ of PTA against Escherichia coli (ESBL +),respectively.For the Klebsiella pneumoniae (ESBL+),these regimens achieved 81.8％,78.7％ and 62.3％ of PTA at ％fT＞MIC =70％.The regimen of 2 g q12 h achieved the similar PTA as 1g q6 h and 1 g q8 h at 50％ and 70％ of ％fT＞MIC,but not at higher ％ fT＞MIC.Furthermore,flomoxef also showed potent bactericidal activity against Escherichia coli (ESBL-),Klebsiella pneumoniae (ESBL-),methicillin-susceptible S.aureus (MSSA),methicillin-susceptible S.Epidermidis (MSSE) and Moraxella catarrhalis,etc.with all dosing regimens according to the PK/PD analysis.Conclusion As a time-dependent antibiotic,the clinical outcome of flomoxef can be improved by shortening dosing interval,extending infusion time and/or increasing dose.The first two strategies played more significant roles.

OBJECTIVES: This study aimed to develop and validate a simple questionnaire for chronic neuropathic pain that can be administered as a screening tool by general practitioners and internists in order to help them identify patients with probable neuropathic pain.
METHODS: Following a development phase and a pilot study, the revised version of the screening tool which included eleven descriptors associated with neuropathic pain both in English and Filipino languages was validated on 120 consecutive patients with any type of pain except psychogenic pain, recruited in the out-patient clinics of six hospitals. The questionnaire was validated by assessing the sensitivity, specificity, positive and negative predictive value of each item and the overall questionnaire. The internal consistency of the questionnaire items was assessed using the Kuder-Richardson formula 20.
RESULTS: Overall, the internal consistency of the SigN-PQ using the Kuder-Richardson formula 20 was 0.7837; the sensitivity was 91.89% with specificity of 80.22%, PV (+) was 65.38% and PV(-) was 96.0%. For the English version, the descriptors with the highest scores were burning (Sensitivity: 100%, Specificity: 93%) and electricity-like (Sensitivity: 100%, Specificity: 93%). For the Filipino version, mainit (burning) has the highest sensitivity of 88% with specificity of 82.6%, followed by gumagapang (tingling) with sensitivity of 86.96% and specificity of 85.42%. The sensation of saksak (stabbing) and hiwa (lancinating) have the lowest sensitivity, 60% and 54% respectively, although their specificity scores are high. Since this study is a validation of a screening tool for neuropathic pain, the investigators decided to choose descriptors with higher sensitivity. Thus, in the final version of the SignN-PQ, the descriptors saksak and hiwa were removed.
CONCLUSION: The SigN-PQ Neuropathic Pain Questionnaire has a high overall sensitivity of 91.89% and specificity of 80.22%. The pain descriptors in the questionnaire are consistent with the descriptors cited in the literature. It is a valid screening instrument for neuropathic pain that can be easily incorporated in the daily practice of general practitioners and internists.

Human ; Male ; Female ; Middle Aged ; Adult ; Young Adult ; Adolescent ; Neuralgia ; Pain ; Diagnosis ; General Practitioners ; Outpatients ; Research Personnel ; Sensitivity And Specificity ; Surveys And Questionnaires

Objective To analyze the feasibility of local LINGO-1 polyclonal antibody administration for treatment of spinal cord injury in adult rats. Methods Twenty-four adult female SD rats were randomized into sham-operated group, rabbit IgG group and LINGO-1 antibody group. In the latter two groups, partial transaction of the T9 segment of the spinal cord was performed to completely sever the dorsal eorticospinal tract, followed immediately by administration of rabbit IgG and anti-LINGO polyclonal antibody via a mini-osmotic pump, respectively. At 3 and 28 days after the operation, the T8～10 segments of the spinal cord were harvested to prepare cryosections, and immunofluorescence staining was used to analyze the penetration of LINGO-1 polyclonal antibody into the spinal cord tissue and its specific binding to LINGO-1 molecules. Results In LINGO-1 antibody group, the presence of rabbit antibodies was detected at the injured sites of the spinal cord at 3 and 28 days after the operation. The mean immunofluorescence density was significantly lower in L1NGO-1 antibody group than in rabbit IgG group at 3 days after the operation (P<0.05). In rabbit IgG group, the mean immunofluorescence density for LINGO-1 in the crysections pre-treated with LINGO-1 polyclonal antibody was significantly lower than that in sections pre-treated with rabbit IgG(P<0.05). Conclusion Locally administered LINGO-1 polyclonal antibody can penetrate into the injured sites in the spinal cord in a wide time window and recognizes LINGO-1 molecule specifically, suggesting the feasibility of passive immunotherapy for spinal cord injury.

Purpose To investigate the consistency and clinicopathologic correlation of BRAFV600E protein expression and gene mutation in papillary thyroid carcinoma. Methods BRAFV600E protein expression and genn mutation was detected respectively by immunohistochemistry of SP and real time-PCR, then the consistency between the both methods was analyzed by Kappa-test, the correlation between BRAFV600E and clinicopatho-logic parameters was analyzed by Chi-square test in papillary thyroid carcinoma. Results The gene mutation and protein expression rates of BRAFV600E were 89.3％ and 88.3％, respec-tively, the differences were not significant, the concordance rate of the both methods was 97.0％, Kappa value was 0.847, the consistence was higher, meanwhile the mutation rates between age ＜45 and ≥45 were respectively 96.8％ and 85.9％, there were significant differences, the positive rates of the both detec-tion methods were higher in thyroid capsule invaded group than non-invaded group, the differences were significant. Conclusion The both methods have higher consistency, the immunohisto-chemistry can be used as an initial screening tool for detecting gene mutation, the gene mutation of BRAFV600E is significantly associated with age and capsule invasion, the relationship is not found between BRAFV600E mutation and the other clinicopatholog-ic parameters.

Objective To investigate the clinical manifestations of patients with pulmonary artery hypertension (PAH) associated with hereditary hemorrhagic telangiectasia (HHT). Methods This retrospective analysis summarized the clinical features of 6 patients with PAH associated with HHT hospitalized at department of cardiology in Cardiovascular Institute and Fuwai Hospital between January 2006 and May 2009. Results The mean age of the 6 patients (3 male) was 34 years (8 -67years). Recurrent epistaxis were present in all patients, there were 4 patients with severe PAH and 2 patients with moderate PAH. All of the six patients with PAH associated with HHT were misdiagnosed at the first hospital visit.Clinical symptoms were significantly improved in 4 patients and remained unchanged in 2 patients combined hepatic venous malformation post medical therapy. Conclusions Misdiagnosis for patients with PAH associated with HHT is a common phenomenon in daily clinical practice. Patients could benefit from the corresponding medical therapy after the establishment of the correct diagnosis.

Objective To investigate the involvement of heme oxygenase (HO-1) in PM2.5 induced toxic responses in human umbilical vein endothelial cells (HUVECs).Methods The experiment groups are as follows:(1) control group; (2) PM2.5 groups:the cells were cultured with various concentrations of PM2.5 (200,400,800 μg/ml) for 24 h and 400 μg/ml was chosen for the main study; (3) PM2.5 + Trion group:the cells were pre-treated by 10 μmol/L Trion [a scavenger of reactive oxygen species(ROS)] for 1 h before PM2.5 (400 μg/ml) treatment for 24 h; (4) PM2.5 +ZnPP group:the cells were pretreated by HO-1 inhibitor ZnPP (10 μmol/L) for 1 h before treatment with PM2.5 (400 μg/ml) for 24 h.MTT assay was used to detect cell viability.Reverse transcription polymerase chain reaction (RT-PCR) and indirect immunofluorescence assay were used to determine the mRNA and protein expressions of HO-1.Fluorescence labeling probe method was used to measure intracellular ROS level and flow cytometry was used for cell apoptosis.Colorimetric assay was used to detect intracellular caspase-3 activity.Results Compared with control,PM2.5 significantly decreased cell viability,increased intracellular ROS,cell apoptosis and caspase-3 activity (all P ＜ 0.05),these effects were significantly attenuated in PM2.5 + Tiron group while enhanced in PM2.5 + ZnPP group (all P ＜ 0.05 vs.PM2.5 group).PM2.5 upregulated HO-1 mRNA and protein expressions in HUVECs which was downregulated in both PM2.5 + Tiron group and PM2.5 + ZnPP group.Conclusion PM2.5 could induce oxidative injury through increasing ROS production via modulating HO-1 mRNA and protein expressions,the injury could be aggravated with inhibition of the activity of HO-1 suggesting a potential protective role of HO-1 against PM2.5 induced oxidative stress in HUVECs.

Objective To determine the antioxidant activity of different polar fractions of Jasmine leaves.Methods The extract of jasmine flo wer leaves was extracted with petroleum ether,ethyl acetate and n-butanol to obtain the petroleum ether,ethyl acetate,n-butanol and water fractions.The scavenging abilities of different polar fractions of jasmine leaf on 1,1-two-2-three nitro phenyl hydrazine (DPPH) free radicals,ABTS + radicals,O2-radicals,OH-radicals and the reduction of Fe3 +,Fe2+ were investigated and were compared with that on 2,6-tert butyl -4-methyl phenol (BHT).Results All the fractions had the ability to scavenge DPPH free radicals and ABTS + radicals.The petroleum ether fracton had the strongest ability to scavenge oxygen anion radicals and the ability of different fractions to scavenge hydroxyl radicals was n-butanol ＞ ethyl acetate ＞ petroleum ether ＞ water.For the ability to restore Fe3 +,the most powerful was water reducing part,the weakest was the ethyl acetate part,for the ability of chelating Fe2+ ethyl acetate part was higher than BHT,and the n-butanol part was the weakest.Conclusion The different polar fractions of Guangxi Jasmine leaves had certain antioxidant activity.