Accidents, Occupational ; Bromine ; poisoning ; Humans ; Hydrobromic Acid ; poisoning

Objective To explore the relationship of the expression level of monocyte Chemotactic protein-1 and nuclear factor κB(NF κB)with atrial fibrosis of atrial fibrillation patients with rheumatic heart disease.Methods About 200 mg right atrial tissue were taken from 26 patients with rheumatic heart disease undergoing valve replacement surgery and divided into sinus rhythm (SR) group (n=12) and atrial fibrillation (AF) group (n=14).Masson staining and atrial myocardial fibrosis markers were used to determine the level of fibrosis.The mRNA levels of cytokines in atrial tissue were measured by reverse transcription polymerase chain reaction (RT-PCR)The protein level of MCP-1 and phosphorylation of NFκB in atrial tissue were detected by Western blotting.Results Compared with SR group,the AF group showed that collagen volume fraction (AF:0.42 ± 0.03;SR:0.13 ± 0.02),the mRNA levels of myocardial fibrosis markers such as transforming growth factor (TGF)-β1,type Ⅰ collagen and type Ⅲ collagen,and cytokines such as IL-1β and TNF-α,and the protein level of MCP-1 (AF:0.170±0.003;SR:0.040±0.005) and level of phosphorylation of NF-κB (AF:0.35 ± 0.02;SR:0.12 ± 0.03) were significantly increased (all P＜0.05).In addition,the expression levels of cytokines,the protein expression level of MCP1 and the phosphorylation level of NF-κB were positively correlated with collagen volume fraction of the right atrial myocardial tissue (all P＜0.05).Conclusions Activation of NF-κB may induce the expression of MCP-1 in the myocardial tissue of patients with rheumatic heart disease,and sequentially stimulate the secretion of cytokines and extracellular matrix deposition,and finally participate in the occurrence and persistence of atrial fibrillation.

AIM: To study the protective effects of taurine-magnesium complex (TMC) on endothelium and hemorheology in rats. METHODS: A model of the endothelial damage was made by means of giving rats an injection of adrenaline and making them swim in ice-cold water, then number of circulating endothelial cells (CEC) in whole blood, plasma ET-1 and NO_2~-/NO_3~- content, NOS activity and rheology were determined, respectively. The protective effects of TMC were also observed. RESULTS: An increase in the number of CEC accompanied by abnormal whole blood viscosity, and endothelium-derived ET-1 were observed in model rats. Both the NO_2~-/NO_3~- content and NOS activity were declined significantly in model rats. TMC reduced the number of CEC, resumed NO_2~-/NO_3~- content and NOS activity, and improved the whole blood viscosity in a dose-dependent manner in model rats. CONCLUSION: Ice-cold water bath with adrenaline causes an acute damage of vascular endothelium and abnormal rheology. TMC protects against the injury of vascular endothelium and improves the hemorheology. [

The author analyzes the basic information in recent years,including overall students scale,students' age,application trends,etc.Some suggestions are made,regarding to recruiting plan,applicant qualification,recruiting mode,etc,in order to further improve the recruiting and graduate management.

AIM:To investigate efficacy of ranibizumab combined with laser treatment for patients with branch retinal vein occlusion (BRVO) and macular edema.METHODS: We selected 67 patients (67 eyes) with BRVO and macular edema in our hospital from March 2013 to June 2016, they were randomly divided into observation group (n=31) and control group (n=36).The observation group was treated with ranibizumab combined with laser treatment.The control group was treated with macular grid photocoagulation.We observed best corrected visual acuity (BCVA), centre macular thickness (CMT) and macular leakage of two groups.RESULTS: The BCVA of observation group at 1, 2 and 3mo after treatment were 0.41±0.07, 0.42±0.05 and 0.48±0.05, significantly higher than those of the control group (P<0.05).The CMT of observation group at 1, 2 and 3mo after treatment were 203.11±59.13μm, 201.41±56.22μm and 204.22±60.13μm, significantly lower than those of the control group (P<0.05).The blood vessel leakage of observation group at 3mo after treatment was significantly better than that of the control group (P<0.05).No leakage ratio in the observation group was 71%.There were no postoperative infection, aseptic endophthalmitis and other complications in the two groups.CONCLUSION: Ranibizumab combined with laser treatment in patients with BRVO and macular edema has better curative effect, can improve the visual acuity of patients, eliminate macular edema, and is safe and reliable.

Objective To investigate the aetiology of acute exacerbations of COPD (AECOPD),and the effects of moxifloxacin in the treatment of AECOPD.Methods Patients with stable COPD based on GOLD criteria were included in the study.Sputum collected at first exacerbation was analyzed for bacteria count and culture.IL-6,IL-8 and TNF-?were measured by enzyme- linked immunosorbent assay (ELISA).Eligible patients were randomized to receive moxifloxacin (400 mg qd for 5 days) or ce- faclor (250 mg q8h for 7 days).Efficacy parameters were evaluated at 7 and 14 days after treatment initiation and 1 year later. Results Of the 46 patients with moderate or severe COPD (male 38,moderate 24),21 (45.65%) were microbiologically evalu- able at baseline.The main pathogen was Haemophilus influenzae (10/21).Clinical efficacy rate was 87.0% in moxifloxacin group and 82.6% in cefaclor group.Bacterial eradication rate was 80.0% and 72.7% respectively.The difference between groups was not statistically significant in terms of clinical or microbiological efficacy.In moxifloxacin arm,the frequency of ex- acerbation was 2.6?1.0,significantly lower than control arm (3.5?1.4,P

Objective The objective of the present study was to evaluate the early auditory development in hearing impaired infants by LittlEARS? auditory questionnaire .Methods A total of 162 hearing impaired infants participated in the study .LEAQ consists of 35 items ,which were further divided into receptive auditory behavior , semantic auditory behavior ,and productive auditory behavior .The assessment was performed before hearing aid fit‐ting ,3 ,6 and 12 months after hearing aid fitting ,respectively .Results LEAQ scores improved dramatically in the first 12 months after hearing aid fitting ,total LEAQ scores prior to hearing aid fitting ,3 ,6 and 12 months after hearing aid fitting were 10 .47 ,17 .73 ,20 .64 and 26 .47 ,respectively .The receptive auditory behavior performance improved significantly after 3 months of hearing aid use .The duration of hearing aid use for dramatic improvement of semantic auditory behaviors ,and productive auditory behavior was 6 and 12 months ,respectively .The age of hearing aid fitting ,living environments ,degrees of parent education and degrees of hearing loss influenced LEAQscores significantly .Conclusion Hearing impaired infants exhibited significant auditory improvement in the first 12 months after hearing aids fitting .Early hearing aid fitting ,high level of parent education and well living environ‐ments promote preverbal auditory development .LEAQ is an effective tool for clinical auditory assessment and moni‐toring in infants and little toddlers .

AIM:To investigate the influence of matrine (MA) on the phenotype switching of mouse mono-cytes and alveolar macrophages induced by bleomycin ( BLM) .METHODS:All mice were randomly divided into normal saline (NS) group, BLM group, BLM+NS group and BLM +MA group.The mice were administered with BLM at 2.5 mg/kg via oropharyngeal instillation .The mice in BLM+MA group were treated with MA (15 mg· kg-1 · d-1 ) by oral gavage following BLM administration .The mice were sacrificed on days 3, 7, 14, and 21.The lungs were removed for pathological analysis .The circulating monocyte subsets and polarization state of bronchoalveolar lavage fluid ( BALF)-de-rived alveolar macrophages were analyzed by flow cytometry .RESULTS:The results of HE and Masson trichrome staining in BLM and BLM+NS groups exhibited classical pathological stages of lung fibrosis , including acute inflammation phase and later fibrosis phase .Compared with BLM +NS group, MA treatment alleviated the inflammatory response and the de-gree of fibrosis induced by BLM (P<0.05).There was a rapid change of circulating Ly6Chi monocytes and its magnitude was positively associated with the pulmonary inflammatory response .An expansion of M2-like alveolar macrophages was positively correlated with the magnitude of lung fibrosis .Moreover , MA treatment partially normalized the phenotype switc-hing of monocytes and alveolar macrophages .CONCLUSION:Matrine treatment attenuates BLM-induced pulmonary injury partially via modulating the phenotype switching of monocytes and alveolar mocrophages .

Objective To investigate the expression and clinical significance of Rho GDP dissociation inhibitor 2 (Rho-GDI2) in pancreatic cancer.Methods Immunohistochemistry and RT-PCR were used to evaluate the expression of Rho-GDI2 in 60 pairs of pancreatic cancer tissues and adjacent pancreatic tissues,and its correlation with clinicopathological parameter of pancreatic cancer was also analyzed.Results The expressions of Rho-GDI2 mRNA were 0.661 ± 0.021 and 0.199 ± 0.023 in pancreatic cancer tissues and adjacent pancreatic tissues,and the positive rate of Rho-GDI2 protein expression were 73.3％ (44/60) and 41.7％ (25/60),the positive rate of Rho-GDI2 expression in pancreatic cancer tissues was higher than that of adjacent normal tissues,and the difference between the two groups was statistically significant (P ＜ 0.01).The expression of Rho-GDI2 was strongly correlated with tumor size,differentiation,staging,lymph node metastasis,vascular invasion (P＜0.05),but it was not associated with gender,age,tumor location (P ＞0.05).Conclusions Rho-GDI2 expression is up-regulated in pancreatic cancer,and is strongly correlated with the malignant biological behavior of pancreatic cancer.

Objective: To observe the clinical efficacy of combining auricular point sticking and a healthy diet to treat simple obesity in children aged 6-9 years old.Methods: A total of 190 eligible obese kids were divided into an observation group and a control group using the random number table method, with 95 cases in each group. The observation group was intervened by auricular point sticking plus guide on a healthy diet, while the control group was only provided with the guide on a healthy diet. The therapeutic efficacy was observed after intervention for three consecutive months, as well as the changes in body mass (BM), body mass index (BMI), waist circumference (WC), hip circumference (HC), and subcutaneous fat thickness. Results: After the 3-month intervention, the total effective rate was 91.6％ in the observation group, versus 74.7％ in the control group, and the between-group difference was statistically significant (P<0.01); in both groups, the BM, BMI, WC, HC, and subcutaneous fat thickness all decreased significantly (P<0.05), and were lower in the observation group than in the control group, showing statistical significance (P<0.05). Conclusion: Auricular point sticking plus a healthy diet is safe and effective in treating simple obesity in children, producing more significant efficacy than healthy diet intervention alone.