Objective To evaluate the clinical effect of emedastine difumarate eye drops combined with pranoprofen eye drops on histamine (HA), eosinophil cationic protein (ECP), leukotrienes B4(LTB4) and, IgE levels of allergic conjunctival and provide reference for clinical diagnosis and treatment.Methods 76 cases of patients with allergic conjunctivitis were randomly divided into control group and experimental group , control group were treated with fumaric acid emedastine eye drops, experimental group were treated with fumarate emedastine combined with pranoprofen eye drops, and then compare the efficacy and serum ECP, HA, LTB4 and IgE levels between two groups before and after treatment of the symptoms and signs score . Results The total efficacy of experimental group was significantly higher than that in control group (94.70%vs.81.60%)(P<0.05).The serum ECP, HA, LTB4 and IgE levels of experimental group were significantly lower than those in control group(P<0.05).Conclusion The emedastine difumarate combined with pranoprofen eye drops in the treatment of allergic conjunctivitis is better than single medication, and ECP, HA, LTB4, IgE significantly decrease.

The rutile structure titanium oxide (Ti-O) film was prepared on the pure titanium material TA2 (99.999%) surface by the magnetic filter high vacuum arc deposition sputtering source. The method can not only maintain the material mechanical properties, but also improve the surface properties for better biocompatibility to accommodate the physiological environment. The preparation process of the Ti-O film was as follows. Firstly, argon ions sputtered to the TA2 substrate surface to remove the excess impurities. Secondly, a metal ion source generated Ti ions and oxygen ions by the RF discharge. Meanwhile a certain negative bias was imposed on the sample. There a certain composition of Ti-O film was obtained under a certain pressure of oxygen in the vacuum chamber. Finally, X-ray diffraction was used to research the structure and composition of the film. The results showed that the Ti-O film of the rutile crystal structure was formed under the 0.18 Pa oxygen partial pressure. A Nano scratch experiment was used to test the coating adhesion property, which demonstrated that the film was stable and durable. The contact angle experiment and the platelet clotting experiment proved that the modified surface method had improved platelet adhesion performance, and, therefore, the material possessed better biocompatibility. On the whole, the evaluations proved the modified material had excellent performance.
Heart Valves ; Heart, Artificial ; Ions ; Materials Testing ; Oxygen ; Surface Properties ; Titanium ; X-Ray Diffraction

OBJECTIVE:To establish a pharmacy online to offline (O2O) platform service quality evaluation model,and to provide reference for platform operators to improve the service quality. METHODS:Using SERVQUAL scale,combining the situa-tion of pharmacy O2O platform development in China,the reliability,safety and aspects of O2O platform were analyzed to sum up primary evaluation index of pharmacy O2O platform service quality. Based on this,the expert interviews questionnaire was de-signed. According to the questionnaire results,indicators were modified and empowered to construct the pharmacy O2O platform service quality evaluation model;the reliability and validity of model were validated. RESULTS & CONCLUSIONS:According to the connotations of each dimension analysis in the SERVQUAL scale and expert interview results of pharmacy O2O platform ser-vice quality,pharmacy O2O platform service quality evaluation model is constructed,including five indicators as“reliability”“se-curity”,and 18 secondary indexes as the“number of platform pharmacy”“pharmacy qualification show”“pharmacy type”. The re-sults of model index reliability and validity verification show that model construction is reasonable and can provide reference for platform operators improving service quality. Follow-up research should give full consideration to the Chinese consumer behavior habits,personal preferences and other factors to build more suitable pharmacy O2O platform service quality evaluation model in China.

Objective To analyze the differences with the expression of glucocorticoids receptor isoforms ( GRα, GRβ, GRγand GR-P ) and cytokines [ IL-6, macrophage migration inhibitory factor (MIF), IFN-γand IL-10] between patients with systemic lupus erythematosus (SLE) and rheumatoid ar-thritis ( RA) , and to further understand their correlations with disease activities.Methods Fifty-five pa-tients with SLE, forty-nine patients with RA and thirty-eight healthy subjects were recruited in this study. All patients were steroid-naive.The expression of GRα, GRβ, GRγ, and GR-P in peripheral blood mononu-clear cells at transcript levels were determined by real-time PCR.Enzyme-linked immunosorbent assay was used to detect the expression of IL-6, MIF, IFN-γand IL-10 in serum samples.Results The percentages of GRαin all subjects were the highest among four isoforms of GR, followed by GR-P, GRγand GRβ.Com-pared with healthy subjects, patients with SLE or RA showed significantly decreased expression of GRα( P<0.05), but increased expression of GR-P (P<0.05).The percentages of GR-P in patients with RA were higher than those in patients with SLE (P<0.05).The expression of GRαwas negatively correlated with SLE disease activity index (SLEDAI) and disease activity score 28 (DAS28).SLE or RA patients with high disease activity showed lower expression of GRαthan those with low disease activity.The levels of IL-6, IFN-γand MIF in patients with SLE or RA were significantly higher than those in healthy subjects ( P<0.05).A negative correlation was observed between the expression of IL-6 and GRαin patients with SLE (P<0.05).The expression of IFN-γwas negatively correlated with GRαin patients with RA (P<0.05). Conclusion There were significant differences with the expression of GR isoforms among patients with SLE, patients with RA and healthy subjects, indicating the change of internal environment in patients might be in-volved in GR alternative splicing.GRαwas the predominant isoform and was negatively correlated with dis-ease activities.Oversecretion of cytokines resulted in a decreased expression of GRα.This study would be useful for the diagnosis of the disease status and for monitoring clinical treatment.

Objective To identify PRKAR1A mutations in a pedigree with Carney's complex through clinical investigation and molecular biology research,and to summarize the genetic law,characteristics,and clinical features of this family disease.Methods The family members received a detailed medical examination and related biochemical tests.The hereditary history and clinical features were recorded.DNAs of 12 family members were extracted from blood and 9 exons and adjacent introns of PRKAR1A were sequenced.Results PRKAR1A mutation intron4 c.440+4 delG was identified in 7 family members,including the proband's patient,who presented special signs of pigmentation on the lips,buccal mucosa,and fingertips.Conclusions The deletion mutation (c.440+4del G) in intron 4 of the PRKAR1A gene was found in this family,which is possibly associated with the phenotype skin pigmentation.

Objective: To investigate the epidemiological characteristics of malaria in Hangzhou City from 2004 to 2021, so as to provide the evidence for formulating the post-elimination control strategy for malaria in Hangzhou City. Methods: The epidemic situation of malaria in Hangzhou City from 2004 to 2021 were collected from the National Information System for Disease Control and Prevention in China, and the temporal, spatial and human distributions of malaria cases and the source of malaria infections were analyzed in Hangzhou City during the pre-elimination stage (2004 to 2009), the elimination stage (2010 to 2015) and the post-elimination stage (2016 to 2021). Results: Totally 602 malaria cases were reported in Hangzhou City from 2004 to 2021,and the annual mean incidence of malaria was 0.22/105, 0.20/105 and 0.18/105 during the pre-elimination, elimination and post-elimination stages, appearing a tendency towards a decline. Men accounted for 63.96%, 85.07% and 93.75% of all malaria cases and there were 67.86%, 82.84% and 80.00% of cases at ages of 18 to 50 years during the pre-elimination, elimination and post-elimination stages, both appearing a tendency towards a decline (χ2trend=56.748, P<0.001; χ2trend=39.971, P<0.001). The predominant occupation of malaria cases shifted from farmers or migrant workers to multiple occupations, and the proportion of commercial servants increased from 4.87% during the pre-elimination stage to 24.38% during the post-elimination stage (χ2trend=73.308, P<0.001). The proportion of Plasmodium vivax malaria cases reduced from 96.43% during the pre-elimination stage to 7.50% during the post-elimination stage, and the proportion of P. falciparum malaria cases increased from 3.57% to 71.25%, while P. ovale, P. malariae and mixed infections were identified since 2010. There was a significant season-specific incidence of P. vivax malaria during the pre-elimination stage, and the period between May and October was an epidemic season; however, there was no season-specific incidence of P. vivax malaria during the elimination and post-elimination stages. The regional distribution of malaria cases presented a tendency towards a shift from suburb and rural areas to urban areas (χ2trend=74.229, P<0.001). No local cases were detected in Hangzhou City since 2010, and 94.22% of malaria cases were overseas imported cases after malaria elimination, including 90.61% from Africa. Conclusions oung and middle-aged men were high-risk populations for malaria in Hangzhou City from 2004 to 2021, and overseas commercial servants gradually became the predominant source of malaria infections, with malaria parasite species tending to be diverse. Improving the management of overseas imported cases and timely identification and treatment of cases are major interventions to consolidate malaria elimination achievements in Hangzhou City.

[Abatract] In order to improve the result of clinical practice for undergraduate students of clinical medicine, combined with the professional characteristics of hematology and teaching syllabus, Hematology Department in the First Affiliated Hospital of Dalian Medical University developed practi-cal teaching content and tried using a variety of teaching methods and teaching means such as multi-media aided teaching, case teaching and simulation teaching method and so on. Besides, multiple station examination was established; teaching feedback and supervision were strengthened. The prac-tice proved that the reform measures were conducive to the cultivation of medical students' practical skills and clinical thinking, which helped to speed up the transformation from the students to the role of doctors.

The knowledge of endocrine metabolic diseases represented by type 2 diabetes mellitus is highly specialized, complicated, and has many clinical guidelines. In this context, team based learning teaching combined with case teaching based on evidence-based medicine was applied in the actual class teaching. The class was divided into several groups and the students were encouraged to discuss and study from each other with the guidance of teachers. Consequently, students' learning interests and spirit of team-work were greatly enhanced, the way of thinking using evidence-based medicine and their ability to solve the practical clinical problems were also improved.

Objective To observe the influence of nocturnal prolonged hemodialysis (INHD) on patients＇ nutrition status. Methods Thirty-two maintenance hemodialysis patients received INHD (3 times per week and 7.5 hours each session) and thirty-five maintenance hemodialysis patients received conventional hemodialysis (3 times per week and 4 hours each session) as control were observed for 6 months.The nutrition status of these patients on various aspects which concluded physical measurements,laboratory tests,and dietary record at baseline(0month) and exit (6 months) were recorded. Results (1)There were no differences in age,sex,body weight,and primary diseases between two groups.(2)The body weight,triceps skinfold thickness (TSF),and hand grip strength increased at exit point,but no statistical difference compared with the control group.Mid-upper arm circumference (MAC) increased signicantly from (27.1±4.2) to (30.5±6.1) cm (P＜0.05).Compared with the control group (26.9±3.4) cm,there was a significant difference (P＜0.05).(3)Serum phosphate decreased significantly from (0.5±0.5) to (0.1±0.6) μ mol/L (P=0.001) in INHD group.(4)The nutrition status were improved in INHD group evaluated by subjective global assessment (SGA)(P=0.03).(5) Dietary intake was recorded by a 3-day food record.Dietary intake of energy,protein,lipid,calcium,potassium,and phosphate increased in INHD group.None of the differences achieved statistical significance between two groups. Conclusion As compared with conventional hemodialysis,INHD can increase the dietary intake,decrease serum phosphate level,and improve patients nutrition status.

Objective To summarize the clinical characteristics and outcome of renal cyst infection in patients with autosomal dominant polycystic kidney disease (ADPKD). Methods Clinical data of 40 ADPKD patients with 43 episodes of renal cyst infection admitted in Shanghai Changzheng Hospital from 1st January 1991 to 31st December 2010 were retrospectively analyzed.Differences of microbiological data and treatments between 1st January 1991 to 31st December 2000 and 1st January 2001 to 31st December 2010 were compared. Results Among 473 identified patients with ADPKD and 662 episodes of hospitalization,40 patients had 43 episodes of renal cyst infection,including 8 definite and 35 likely cases.Microbiological documentation was available for 34 episodes (79.0％),Escherichia coli accounting for 82.4％ of all retrieved bacterial strains.Resistant Escherichia coli to quinolone and certain β-lactamine increased in recent decade.Clinical efficacy of initial antibiotic treatment was noted in 69.8％ of episodes. Antibiotic treatment modification was more frequently required for patients receiving initial monotherapy compared with those receiving combination therapy.In the first ten-year group,initial combination therapy and clinical efficacy were noted in 30.0％ and 60.0％ of episodes respectively,and hospital stay was (20.2±6.7) d.In the second ten-year group,initial combination therapy and clinical efficacy were noted in 61.9％ and 78.2％ of episodes respectively,and hospital stay was (16.3±3.2) d.Large infected cysts (diameter ＞5 cm) frequently required drainage. Conclusions In renal cyst infection,the source of the organisms is often a gram negative enteric organism.Empiric therapy is often initiated with two antibiotics.The drainage of large infected cysts remains the main treatment for cyst infection.