Humans ; Noise, Occupational ; adverse effects ; prevention & control ; Ships

Acute retinal necrosis syndrome (ARNS) is a group of eye syndrome.Acute uveitis, retinal artery occlusive vasculitis, fused necrotic retinitis and late stage of retinal detachment is the main clinical manifestation.A part of patients may be associated with increased intraocular pressure.The etiology and pathogenesis is still not clear completely and most people think that may be related to the virus infection, which mainly to reflected to be herpes simplex virus (HSV), varicella zoster virus (VZV), EB virus and giant cell virus (CMV) infection.Its diagnosis mainly depends on clinical manifestation, examination and etiological examination.Acute retinal necrosis syndrome is urgent and develops quickly, and it is lack of specific clinical symptoms in early times.By the way, it enjoys high misdiagnosis rate and poor prognosis.It is hard to cure, therefore, it is an important reason for the blindness.Once diagnosed, treatment should be adopted by carrying local and systemic antiviral, preventive laser photocoagulation in time.At the same time, it is essential that vitreous body resection combine with silicone oil tamponade treatment when necessary.The study shows that the effective measures of early treatment will be able to prevent disease progression and improve visual acuity.Therefore, early diagnosis and treatment of acute retinal necrosis syndrome is very important.In this paper, combination of the literature on the diagnosis and treatment of acute retinal necrosis syndrome were reviewed.

Objective:To study the effect of OSAHS on adult nasal-cycle.Method:The nasal cycle of 20 healthy adults,18 patients of snoring and 22 patients of OSAHS were examined with acoustic rhinometry,which was performed every 30 minutes in 7 hours.Result:The ratio of nasal cycle in healthy adults was(19/20,95.0%), in snoring patients was(15/18,83.0%),in patients of OSAHS was(15/22,68.2%). The mean alteration amplitude of nasal cycle in healthy adults was significantly larger than that in patients with OSAHS (P<0.05).The distribution of the healthy adults and patients with OSAHS between the typical cycle categories was significantly different(P<0.05).Conclusion:The characteristics of nasal-cycle in of OSAHS patients were different with healthy adults,which maybe owing to change of physical function of nasal cavity.

The paper is about the systematic studies of biological characteristics of 15 stains rhizobia isolated purified from Acacia confusa grew in Guangxi karst environment.The results showed that there were typical characteristics of rhizobia.there were negative reaction about use of 3-ketolactose and beef extract peptone nutrient agar medium,and positive reaction about use of starch and citrate medium,and produce acid in reaction of BTB and litmus milk medium,(NH4)2HPO4 was used as nitrogen sources and both four monosaccharides and three disaccharides could be utilized as carbon sources in 15 strains rhizobia isolated Acacia confuse.Among the 15 strains for the tests,11 strains could deoxidize the nitrate of medium into nitrite,14 strains could grow well on NaCl solution concentration 3.0 %～4.0 %,14 strains could grow at 39℃,13 strains may grow on highest pH12 and 4 strains on lowest pH4 cultrue medium.15 strains can grow in 10% and 11 strains in 10%～30% of CaCO3 solution concentration.

Catheter ablation of atrial fibrillation is an evolving field,especially for chronic atrial fibrillation.Several approaches have been performed in clinic practice,which include circumferential pulmonary vein ablation/isolation,left atrial linear ablation,CFAE ablation,pulmonary vein denervation or stepwise ablation.However,a standard approach has not been established.The total successful rates vary from 21% to 95%.The investigations in the mechanism of chronic atrial fibrillation and methods of three-dimensional mapping,and the usage of new source and technique of ablation will increase the successful rate,decrease the recurrence rate and procedure time.The long-term result of ablation of chronic atrial fibrillation and its impact on the structure and function of heart need further investigations.

Objective To explore exenatide in the treatment of metformin(MET)alone,sulfonylurea (SU)alone or MET + SU combination therapy with poor glycemic control in type 2 diabetic pa-tients and to find effective nursing measures.Methods 24 patients were randomly divided into the con-trol group and the exenatide group with 12 patients in each group.In the exenatide group,exenatide 5μg twice a day for 4weeks,then 10μg twice a day for 12 weeks.Changes of HbAlc,body weight,BMI,FBG,P2hBG,and rate of adverse reaction were compared between two groups.Results Glycosylated hemoglobin (HbAlc),body weight,BMI,FBG,P2hBG in the control group before and after treatment showed no significant difference,while the exenatide group showed better results compared with those before treatment and the control group.Nursing intervention played evident effect on reducing adverse effect such as nausea,vomiting,diarrhea,low blood sugar,headache.Conclusions For patients with type 2 diabetes,using MET,SU alone or MET + SU combination therapy showed poor results of blood sugar control,addition of exenatide therapy can effectively control blood sugar,nursing intervention can significantly alleviate the adverse effects of patients.

OBJECTIVEThe study aimed to evaluate the efficacy of endoscopic therapy for early postoperative anastomotic hemorrhage.

METHODSFourteen patients experienced an episode of early postoperative anastomotic hemorrhage and were treated endoscopically from January 2005 to June 2010. The clinical data was analyzed retrospectively.

RESULTSFourteen patients(9 males and 5 females, median age 57.5 years, range 26-74 years) were diagnosed with postoperative hemorrhage between 6 hours to 14 days after surgery. The blood loss ranged from 500 to 1500 ml. Sclerosing agent injection, electrocoagulation, and hemoclips were attempted to control the bleeding. Endoscopic approach to control early postoperative anastomotic hemorrhage was successful in all the patients. No recurrent bleeding was observed during the follow-up. No complications associated with endoscopic therapy.

CONCLUSIONEndoscopic approach for the management of early postoperative anastomotic hemorrhage is feasible with high success rate and associated with no complications.

Adult ; Aged ; Female ; Hemostasis, Endoscopic ; Humans ; Male ; Middle Aged ; Postoperative Hemorrhage ; surgery ; Retrospective Studies ; Surgical Stomas ; Treatment Outcome

OBJECTIVETo study the liver targeted drug delivery system of TBMS--the effective anticancer component from Bolbstemma paniculatum, and to discuss the system's function of decreasing toxicity.

METHODBCA was used as carrier material. The preparation through overall feedback dynamic techniques. The properties of preparation and toxicology were also technology of nanoparticles was optimized studied. Thenanoparticles' targeting in mice vivo was observed with transmission electron microscopy. The function of decreasing toxicity was researched by the XXTX-2000 automatic quantitative analysis management system.

RESULTD50 was 0.68 microm. Drug-loading rate and entrapment rate were 37.3% and 88.6% respectively. The release in vitro accorded with Weibull equation. The reaching release balance time and the t 1/2 extended 26 times and 19 times respectively comparing with injection. Nanoparticles mainly distributed in liver tissue. Their toxicity to lung and liver was evidently lower than injection. Nanoparticles' LD50 exceeded injection's by 13.5% and their stimulus was much lower than injection.

CONCLUSIONThe TBMS can be targeted to liver by liver targeted drug delivery system. At the same time, the problem about the toxicity hindering clinical application could be solved, which lays the foundation for the further studies on TBMS.

Animals ; Antineoplastic Agents, Phytogenic ; administration & dosage ; pharmacokinetics ; Cucurbitaceae ; chemistry ; Delayed-Action Preparations ; Drug Compounding ; methods ; Drug Delivery Systems ; Drugs, Chinese Herbal ; administration & dosage ; pharmacokinetics ; Excipients ; Liver ; metabolism ; Mice ; Nanostructures ; Particle Size ; Plants, Medicinal ; chemistry ; Rabbits ; Rhizome ; chemistry ; Tissue Distribution

OBJECTIVETo identify the mutations of iduronate-2-sulfatase (IDS) gene, and to establish a basis of prenatal gene diagnosis of Hunter syndrome.

METHODSUrine glycosaminoglycan (GAG) assay was used to preliminary diagnosis of mucopolysaccharidosis. PCR-denaturing high-performance liquidchromatograptly (PCR-DHPLC) analysis was performed to detect the mutation in exons 9, 3, 8 of the IDS gene. DNA sequencing was applied to analyze the mutation detected by PCR-DHPLC.

RESULTSAbnormal peaks were found by PCR-DHPLC. A new frame-mutation (1569+TT) in exon 9 of IDS gene was identified by DNA sequencing. Two "T"q inserted in position 1569 base pair (1569+TT) caused a substitution of codon 482 (TTA, leucine) to 482 (TTT, phenylalanine). The "TT" insertion results in the decrease of amino acids from 550 to 482. The patient is a hemizygote and his mother is a heterozygote.

CONCLUSIONA new frame-shift mutation of IDS gene is found to report. The mutation (1569+TT) results in 68 amino acids lost. Probably it causes the enzyme activity seriously dropped down and being pathologically the basis of disease.

Child, Preschool ; Chromatography, High Pressure Liquid ; DNA Mutational Analysis ; Humans ; Iduronate Sulfatase ; genetics ; Male ; Molecular Sequence Data ; Mucopolysaccharidoses ; genetics ; Mucopolysaccharidosis II ; enzymology ; genetics ; Mutation

OBJECTIVE: To study the effect of OSAHS on adult nasal-cycle. METHOD: The nasal cycle of 20 healthy adults, 18 patients of snoring and 22 patients of OSAHS were examined with acoustic rhinometry, which was performed every 30 minutes in 7 hours. RESULT: The ratio of nasal cycle in healthy adults was (19/20, 95.0%), in snoring patients was (15/18, 83.0%), in patients of OSAHS was (15/22, 68.2%). The mean alteration amplitude of nasal cycle in healthy adults was significantly larger than that in patients with OSAHS (P < 0.05). The distribution of the healthy adults and patients with OSAHS between the typical cycle categories was significantly different (P < 0.05). CONCLUSION The characteristics of nasal-cycle in of OSAHS patients were different with healthy adults, which maybe owing to change of physical function of basal cavity.
Adult ; Aged ; Case-Control Studies ; Female ; Humans ; Male ; Middle Aged ; Nasal Cavity ; physiopathology ; Nose ; physiopathology ; Rhinometry, Acoustic ; Sleep Apnea, Obstructive ; physiopathology ; Snoring ; physiopathology