Anti-Inflammatory Agents ; therapeutic use ; Colitis, Ulcerative ; diagnosis ; drug therapy ; Drug Therapy, Combination ; Drugs, Chinese Herbal ; therapeutic use ; Humans ; Integrative Medicine

Adult ; Aluminum ; adverse effects ; Electrolysis ; Fluoride Poisoning ; epidemiology ; Humans ; Male ; Occupational Exposure ; adverse effects ; Workplace ; Young Adult

Altitude Sickness ; diagnosis ; Humans ; Occupational Diseases ; diagnosis ; Reference Standards

Obstructive sleep apnea (OSA),the most common type of sleep disordered breathing was closely associated with the occurrence of ischemic stroke.It has been demonstrated that OSA is an independent risk factor for ischemic stroke.Its pathogenic mechanism includes atherosclerosis,coagulation abnormalities and cerebral hemodynamic changes caused by long-term periodic hypoxia hypoxemia and hypercapnia.The prognosis of ischemic stroke patients with OSA is poor.Therefore,it needs to be treated early to avoid further damage to brain tissue and reduce the mortality.

Objective To prepare chitosan (CS)-compound Yizhihao-nanoparticles (NP) and to investigate its antibacterial activity. Methods CS NPs were formed by the incorporation of CS and Na3PO4. CS-compound Yizhihao NPs were prepared by ion-cross-linking. The particle sizes and surface charges of CS NPs were determined by Malvern Zetasizer 1000-HAS and atomic force microscope (AFM), respectively. The antibacterial acitivity of CS-compound Yizhihao-NPs was studied in vitro and compared with that of compound Yizhihao powder. Results Malvern Zetasizer 1000-HAS and AFM demonstrated that the diameter of CS-compound Yizhihao NPs was (137.00±14.28)nm and CS NPs had (16.90±1.32)mV positive surface charges. The minimal inhibitory concentrations (MIC) of CS-compound Yizhihao NPs on Staphylococcus aureus,Pneumococcus,β-hemolytic streptococcus, and Escherichia coli were 1:32,1:32,1:16,and 1:2,respectively. The minimal bactericidal concentrations (MBC) of CS-compound Yizhihao-NPs on Staphylococcus aureus,Pneumococcus,β-hemolytic streptococcus, and Escherichia coli were 1:16,1:16,1:8, and 1:2,respectively. The antibacterial efficacy of CS-compound Yizhihao-NPs to Staphylococcus aureus,Pneumococcus,and β-hemolytic streptococcus had been improved significantly (P<0.05). Conclusion CS-compound Yizhihao-nanoparticles have obvious antibacterial activity to the Staphylococcus aureus,Pneumococcus,and β-hemolytic streptococcus,which lays the experimental foundation for new preparation of traditional Chinese medicine in future research.

Objective To observe the clinical efficacy of intratympanic dexamethasone injection for patients with sudden sensorineural hearing loss (SSNHL). Methods Forty-four SSNHL cases (44 ears) which failed to respond to regular treatments were divided into two groups. The intratympanic injection group (24 eases) were injected dexamethasone 2.5 mg to the tympanic cavity every two days,4 times in all. The control group (20 eases) were treated with B1,B12 and triphosaden. Pure tone average (PTA) was tested before and 3 days after treatment. Results The total effective rate of intratympanic injection group was higher than that of control group [37.5%(9/24) vs 10.0%(2/20)] (P < 0.05). In intratympanic injection group, PTA of post-injection was significantly lower than the pre-injection[ (52.75±20.14) dB vs (70.26±20.76) dB ] (P < 0.05). PTA of post-injection in intratympanic injection group was significantly better than that in control group[(52.75±20.14) dB vs (63.55±19.36) dB](P< 0.05). Conclusion Intratympanic dexamethasone injection can be applied to SSNHL patients who failed to respond to systemic corticosteroid treatment and it can avoid the side effects brought on by high dose systemic corticosteroid treatment.

Objective To explore the effectiveness of short-term integrated intervention to reduce discrimination against people living with HIV/AIDS(PLWHA)among medical students.Methods A quasi-experimental survey was conducted.Two medical schools in Beijing,one as intervention group and the other as control group were selected by convenience sampling,from which 123 undergraduate students or interns of medical and nursing specialties were recruited,62 in the intervention group and 61 in the control group.The intervention group was provided with 13 hour long antidiscrimination intervention by increasing HIV/AIDS related knowledge,sympathy and skill in dealing with people living with HIV/AIDS,while the control group was deprived of any intervention.The attitude of the students in the 2 groups were assessed by questionnaire survey in 5 time points after the intervention.Results Compared with the control group,at 4 time points after the intervention students in the intervention group had less discrimination against PLWHA in general;and significantly less discrimination in dealing with them as patients(P

Objective To observe the effect of external fixator combined with limited internal fixation in the treatment of complex ankle fractures.Methods According to the digital table,65 patients with complex ankle fracture were randomly divided into treatment group(33 cases) and control group(32 cases).The treatment group was treated with external fixator combined with limited internal fixation,the control group was treated with internal fixation.All patients were followed up for 5 to 20 months.The curative effect and incidence rate of complication of the two groups were observed.Results The excellent rate of the treatment group was 84.85%,which was higher than 62.50% of the control group,the difference was statistically significant(x2=4.20,P<0.05).The incidence rate of complications in the treatment group was 3.03%,which was lower than 18.75% of the control group,the difference was statistically significant(x2=4.18,P<0.05).Conclusion External fixator combined with limited internal fixation can effectively treat complex ankle fractures,the method can not only make patients satisfied with the reduction effect,but also the internal fixation complications such as infection are minimized,the clinical value is extremely high,it is worthy of wide application.

The robust nuclear-cytoplasmic transport is vital for eukaryotes'life cycle.Not only proteins and RNAs are transferred to their destination by this system, the important cellular activities such as mitosis are also regulated by the transport pathways via adjusting the local concentrations of some critical cargoes.tRNA is one of the most important biomacromolecules in the cell, synthesized in nucleus, and taking part in protein synthesis in cytoplasm.It is a long-held belief that tRNA functions only as a key player in protein synthesis, and tRNA nuclear-cytoplasmic transport is a unidirectional movement from nucleus to cytoplasm.However, the recent discoveries are overturning the traditional opinions.Nuclear-born tRNA can be exported out of nucleus, while cytoplasmic-residing tRNA can also be retrogradely transport into nucleus.The new concept tRNA nuclear-cytoplasmic dynamics was coined in 2008 to describe the tRNA communication between nucleus and cytoplasm, which was found able to regulate protein synthesis and cell cycle in S.cerevisiae.The latest results in this field are going to change the landscape of eukaryotic tRNA biology.

Objective To explore the techniques and effects of excision of vocal cord polyps under sustaining laryngoscope. Medthods Nasal endoscopy was used to obtain a better exposure during excision of vocal cord polyps under sustaining laryngoscope. Results Out of the 128 cases, 100 cases (78 1%) were cured and 28 cases (21 9%) were improved. Among 50 cases of type Ⅰ polyps, 43 (86%) were cured and 7 (14%) improved; among 40 cases of type Ⅱ polyps, 38 (95%) were cured and 2 (5%) improved; among 38 cases of type Ⅲ, 19 (50%) were cured and 19 (50%) improved. The therapeutic effects in cases of type Ⅰ and Ⅱ polyps were significantly better than those in cases of type Ⅲ polyps ( ? 2=13 442 and 20 057; P =0 000). Follow up for 5 months ～ 4 years (mean, 2 years) found no recurrence and complications. Conclusions Application of nasal endoscopy in operations for vocal cord polyps under sustaining laryngoscope may reduce the invasion during operation, shorten the operation time, and avoid or minimize the occurrence of complications.