Exposure to traffic-related air pollutants(TRAP)has been implicated in airway allergic diseases.Recent findings include epidemiologic and mechanistic studies that shed new light on the impact of TRAP on allergic rhinitis(AR)and the biology underlying this impact.These studies have found that oxidative stress induced by TRAP could affect the axis of epithelial cell-dendritic cell-T cell towards a T-helper 2 immune response,which is the major mechanism between TRAP and AR.Further,epigenetics and microRNA might be involved in this process.Our review will summarize the most recent findings in each of these areas.
Air Pollutants ; toxicity ; Air Pollution ; Humans ; Oxidative Stress ; Rhinitis, Allergic ; etiology ; Vehicle Emissions ; toxicity

AIM: To investigate the effect and safety of laser peripheral iridoplasty combined with iridectomy in the unmanageable acute angle - closure glaucoma by medication.
METHODS:Totally 19 cases (21 eyes) with acute angle-closure glaucoma, including 15 cases ( 17 eyes ) with primary glaucoma and 4 cases (4 eyes) with intumescent cataract - induced glaucoma, were recruited into the study. The intraocular pressure ( IOP ) of all cases were still >21mmHg after 24h drug treatment, and then were treated by laser peripheral iridoplasty combined with iridectomy. The visual accurity, IOP, cornea, peripheral anterior chamber depth, anterior chamber angle and complications were observed at 24h after the surgery.
RESULTS:The mean IOP of all cases was reduced from 53. 09±11. 01mmHg before the surgery to 14. 98±4. 21mmHg at 24h after the treatment, with significant statistical difference ( P< 0. 01 ). The visual acurity of all cases increased in different degrees from handle move to 0. 3 to 0-1-1. 0 at 24h after the treatment. In all cases, cornea edema reduced or cleared up, peripheral anterior chamber depth increased, and anterior chamber angle reopened in different degrees. Complications included iris hemorrhage in 11 eyes (52. 4%), mild iritis in 21 eyes (100%). No cornea burn was encountered.
CONCLUSION: Laser peripheral iridoplasty combined with iridectomy is an effective and safe method for the treatment of the unmanageable acute angle - closure glaucoma by medication.

Objective To analyze the onset, clinical manifestation, causation, complications of pediatric uveitis. MethodsOne hundred and two patients with uveitis under 16 year-old were retrospectively studied. They visited the clinic in Peking University First Hospital from November 1979 to December 2008. Their age ranged from 2.5 to 16 years old, with a mcan of 11.9 years. Routine exam was carried out, including visual acuity, slit lamp, fundus, and laboratory workup. The diagnosis and classification were made by the anatomic location according to the standard of The International Uveitis Working Group. The data of disease history, age of onset, manifestation, recurrence, causation, systemic diseases, complications, and lab examination were analyzed. Results A total of 102 patients (170 eyes)with pediatric uveitis were included in this study, 68 patients (66.6%) were bilateral cases. Anterior uveitis represented in 38 patients (37.3% ), intermediate uveitis in 19 (18.6%), posterior uveitis in 10 (9.8%),and panuveitis in 35 (34.3%). The disease duration was from five days to 2.4 years, with a mean of 3.6 months. The follow-up time was two weeks to more than ten years. The first three causes of pediatric uveitis were juvenile idiopathic arthritis, Vogt-Koyanagi Harada disease, and Behcet's disease. 36 patients were found with complications, and among them 19 had complicated cataract, seven had secondary glaucoma, five had corneal band dystrophy, 12 had iris synechia (both anterior and posterior), one had retinal detachment, two had eye atrophy, and one patient with juvenile idiopathic arthritis had bilateral femoral head necrosis because of the use of steroid and hip joint was replaced. There were ten children suffering more than two complications. Conclusions Pediatric uveitis is a possible blindness disease with variety of etiology and manifestations, and tends to cause complications. Early and special attention must be taken to avoid serious consequences.

The paper analyzed the necessity of the testing items for blood transfusion compatibility.By means of a comprehensive evaluation of the testing requirements of blood transfusion labs,and a basis on characteristics of blood transfusion profession and technical specifications in clinical transfusion,the paper probed into building appropriate lab examination techniques in terms of ABO blood type testing item,RhD blood type testing item and screening test,and cross-matching testing items,for the purpose of achieving the safety and effectiveness of clinical blood use.

Objective To investigate the protein and mRNA expression of NF-κB and zinc finger protein A20 in the keloid and normal skin and to explore its underlying molecular biological mechanism.Methods The protein and mRNA expression of NF-κB p65 and zinc finger protein A20 in keloid and normal skin was detected by immunohistochemistry and real time quantitative reverse transcription-polymerase chain reaction (RT-PCR).Results The protein and mRNA expression of NF-κB p65 in keloid tissues was higher than those in normal skin tissues (P＜0.05).The protein and mRNA expression of zinc finger protein A20 in keloid tissues was lower than those in normal skin tissues (P＜0.05).Conclusions NF-κB signal pathways and zinc finger protein A20 could play a role in keloid pathogenesis.

Objective To investigate the incidence,treatment and prognosis of neonatal respiratory failure (NRF) in the Neonatal Intensive Care Unit of Children's Hospital of Hebei Province.Methods The medical data of 626 NRF newborns admitted to the Neonatal Intensive Care Unit of Children's Hospital of Hebei Province from January 1st,2008 to December 31st,2008 were collected,and the pathogenesis of NRF,management,risk factors of their deaths and cost for the disease were studied.The results were compared with the national study in the same period and the local study of 2004-2005 by Chi-square test.Results During the 12 consecutive months,the incidence of NRF in neonatal intensive care unit was 38.9％ (626/1608).The mortality in hospital was 22.5％ (141/626),among which,most deaths (134,95.0％) occured after early discharge required by the parents.The mortality decreased by 14.7％ compared with that during 2004 2005 (37.2％,113/304),and was also lower than that (24.7％,1683/6864) in the national study at the same period.Pneumonia/sepsis ( 34.8 ％,218/626 ),neonatal respiratory distress syndrome ( 31.6 ％,198/626 ),and meconium aspiration syndrome (10.7％,67/626) were leading primary causes of NRF.The major complications were pneumonia/sepsis (5.4 ％,34/626),intracranial hemorrhage (4.6 ％,29/626) and persistent pulmonary hypertension (3.2％,20/626 ).The percentage of NRF babies requiring pulmonary surfactant rose from 14.1％ (43/304) during 2004-2005 to 23.6％ (149/626) in 2008,which almost reached the national level of 26.8％ (1840/6864).Pulmonary surfactant treatment was accepted by 70.2％ (139/198) patients with neonatal respiratory distress syndrome.12.1％ (24/198)of neonatal respiratory distress syndrome infant was administered immediate intubation-surfactant-extubation.Seventeen (2.7％) patients accepted nitric oxygen treatment.Nasal continuous positive airway pressure was given to 76.5％(479/626) patients,which was higher than before (47.1％,143/304).Conventional mechanical ventilation rate decreased from 72.7％ (221/304) to 49.8％ (312/626),and high frequency oscillatory rate increased from 0.7％ (2/304) to 10.5％ (66/626),which were similar to the national level.Of the 480 patients discharged after recovery,the mean time of hospital stay was (15.1 ± 4.0) days,and the mean medical cost was (12752 ± 5148) CNY.Conclusions The patient number increases and the medical skills and treatment methods of our hospital improve a lot.Utilization of pulmonary surfactant,nasal continuous positive airway pressure and high frequency oscillatory ventilation increase significantly.However,the burden of NRF is still heavy.

MAL gene expresses in the mediate and late stage of T-lymphocytes.Many studies have shown that the expression of MAL gene has down regulation or loss in many kinds of tumors including esophageal carcinoma,gastric cancer,colon cancer,head and neck squamous cell carcinoma,and so on.MAL gene is related with the process of generation and development of the tumors.The application of MAL gene for clinical diagnosis,prognostic and instructing therapy needs further studies.

Objective To identify the patient satisfaction on follow-up service from the community health service (CHS) or West China hospital (WCH) and to compare the patient satisfaction on follow-up service from CHS and WCH.Methods A cross-sectional survey was used in this study to identify the patient satisfaction on day surgery.The questionnaires were self-made through literature review.Purposive sampling was used in collecting the data.Results Totally 758 qualified questionnaires were collected.The proportions of qualified questionnaires were 96.3％.Respectively,79.3％ of patients were completely satisfied with follow-up service from WCH,19.3％ of patients were partly satisfied,and 1.4％ of patients were completely dissatisfied.66.7％ of patients were completely satisfied with follow-up service from CHS,33.3％ of patients were partly satisfied with follow-up service from CHS,and no objects were completely dissatisfied.Conclusions Patient satisfaction on follow-up services from WCH was higher than CHS.It is essential to enhance follow-up services from CHS.

Objective To observe the therapeutic effect of phloroglucinol combined with diazepam in prolonged or protracted active phase of first stage of labor,and the outcome of perinatal phase.Methods Two hundred vaginal delivery primipara with prolonged or protracted active phase after dilatation of cervix 2-3 cm were selected.The patients were divided into 2 groups by random digits table method with 100 cases each,the patients in observation group were given phloroglucinol 80 mg and diazepam 10 mg,and the patients in control group were given diazepam 10 mg.The cervical dilatation,the degree soft hardness and edema of cervix,time of active phase,time of second stage of labor,mode of delivery,vaginal bleeding in 2 h postpartum and outcome of perinatal phase in the 2 groups were observed.Results In observation group,the cervical dilatation rate was (2.31 ± 0.27) cm/h,the time of active phase was (187.27 ± 33.22) min.In control group,the cervical dilatation rate was (1.82 ±0.48) cm/h,the time of active phase was (251.32 ± 45.33) min,there were statistical differences between 2 groups (P ＜ 0.05).The rate of uterineincision delivery in observation group was significantly lower than that in control group [18.0％(18/100) vs.32.0％ (32/100)],there was statistical difference (P ＜ 0.05).There were no statistical differences in time of second stage of labor,vaginal bleeding in 2 h postpartum,rate of neonatal asphyxia between 2 groups (P ＞0.05).Conclusion The effect of phloroglucinol combined with diazepam in prolonged or protracted active phase is remarkable,it can promote the progress of labor,speed up delivery progress,improve the rate of vaginal delivery and decrease the rate of uterine-incision delivery,and no adverse effects on the outcome of perinatal phase,it is worth popularizing.

Vascular endothelial growth factor receptors ( VEGFR ) belong to the receptor-type tyrosine kinase ( RTK ) super family and play important roles in tumor angiogenesis.Abnormal activation of VEGFR results in several disorders including cancer.VEGFR-2 is the major signal transducer for angiogenesis, and therefore, it becomes a good target for the inhibition of tumor development and metastasis.Nowadays, the VEGFR-based antiangiogenic therapy becomes one of the most powerful clinical strategies for cancer treatment.In this review, small molecular VEGFR-2 inhibitors are classified according to their structural features, their biological activities and current statue are briefly introduced.