There are more than 70 species of flaviviruses, including Zika virus, Dengue virus and Japanese encephalitis virus, and more than 33 species are known to be capable of infecting humans. Only three flavivirus vaccines have been approved, and there is a lack of safe and effective vaccines for most flaviviruses. Adenovirus-vectored vaccines have high safety, low cost, and convenience to store and transport. Currently, two adenovirus-vectored Zika vaccines are under early clinical trials, and adenovirus-vectored vaccines for Dengue virus, Japanese encephalitis virus, West Nile virus and yellow fever virus are still in the phase of animal experiment. In the development of adenovirus-vectored flavivirus vaccines, there are still problems of pre-existing immunity to adenovirus, the insufficient immunogenicity of adenovirus vectors and the antibody-dependent enhancement effects among flavivirus. Based on relevant publications from January 2006 to June 2023, this article reviews the current status, challenges and solutions of the research into adenovirus-vectored flavivirus vaccines, so as to provide the reference for the development of relevant vaccines.

Objective To evaluate the function of the domestic sickbeds set up by our hospital in the prevention and cure of non infectious chronic diseases. Methods A perspective study was made through offering health education, guidance and home treatment to 116 cases using domestic sickbeds and employing the method of self management. In addition, the clinical treatment results of the patients and the rate of their satisfaction towards domestic sickbeds were surveyed, analyzed and assessed. Results Through long term follow up visits, it was found that compared with the intermittently standardized group and the completely non standardized group, the control rate of chronic diseases in the standardized group with systematic management and treatment was significantly higher while the rates of complications and mortality were much lower (P

Objective To explore the clinical value of the serum cystatin C (Cys C) changes in different periods of the infantile pneumonia.Methods Ninety-two cases of infantile pneumonia (59 mild pneumonia patients and 33 severe pneumonia patients) from November 2012 to March 2013 were collected and 40 cases of healthy infant were enrolled for control group.The levels of serum Cys C,urea and creatinine in acute and recovery period were detected.Results In severe pneumonia patients,the average level of Cys C in acute period [(1.98±0.33) mg/L] is significantly higher than that in control group [(0.85 ±0.24) mg/L] (P ＜0.01),and there was no significant difference between recovery period [(1.12 ± 0.23) mg/L] and control group (P ＞ 0.05),and there was significant difference between acute and recovery period (P ＜0.05).In mild pneumonia patients,there were no significant differences in the level of Cys C between the acute period [(1.10 ±0.22) mg/L] and recovery period [(0.94 ±0.21) mg/L] as well as control group (P ＞ 0.05).The positive rate of Cys C in severe pneumonia patients (51.9％,14/27) was higher than that of urea and creatinine (3.7％,1/27) (P ＜0.01).Conclusion Severe pneumonia could result in renal dysfunction,which is reversible.Cys C can be the clinical reference for early diagnosis and the therapeutic effect in severe pneumonia patients with renal dysfunction.

Objective To characterize the manifestations of non-Hodgkin's lymphoma in nervous system with in-flammation-like presentation. Methods We reviewed clinical and laboratory data obtained from 3 cases of non-Hodgkin's lymphoma in nervous system with inflammation-like presentation.Those data include clinical manifestations,CSF examina-tions neuroimaging,pathology of biopsies,treatment and prognosis.Results The clinical manifestations of NHL in nervous system were variable and the findings of cerebrospinal fluid and imaging were not characteristic.Parital relief of symptoms by steroid cortisone could be achieved in some cases which maght further increased the difficulty in differentiating NHL from CNS inflammation.Several signs including no evidence of CNS inflammation,multiple organ involyements,especially the organ involvements outside CNS,and deterioration after a transient relief of symptoms by steroid cortisone,strongly suggest the possibility of NHL.Condusions We should increase physicians'awareness to NHL to reduce the misdiagnosis even though the final diagnosis relies on pathological examination.

Objective To investigate the clinical features and treatment points of diabetes patients compli-cated with parapharyngeal abscess .Methods The clinical data of 12 diabetes mellitus patients complicated with parapharyngeal abscess were analyzed .Results 12 patients were all cured and discharged without concurrent medias-tinal abscess ,intracranial infection and serious complications such as bleeding .Conclusion The development of dia-betes mellitus complicated with parapharyngeal abscess is rapid ,we must confirm the diagnosis ,timely implementation of abscess incision and drainage ,effective drainage of pus ,keep the airway open ,actively control the infection at the same time strictly control the fluctuations in blood sugar ,strengthen supportive therapy ,thus to improve treatment and reduce the incidence of complications .

Objective In this article we report our methods and effects of CT-guided bone biopsy in extremities.Methods 50 patients with extremital bone lesion were candidates for CT-guided biopsy.Two or more procedures were routinely performed in each case.Ackmann drill was used for 13 patients with sclerotic lesions.Temno core needle was used for 42 cases.Fine needle aspiration was combined for 12 patients with cystic or obviously liquefied lesions.Results In the 50 cases,a diagnosis was possible in 88%(44/50).The six unsatisfactory results were from sclerotic lesions(n=3),liquefied lesions(n=2) and mixed lesion(n=1).50cases were divided into primary malignant tumors(n=23),primary benign tumors and tumor-like lesions(n=12),metastatic tumors(n=8),and bone inflammations (n=7).Their diagnostic accuracies of CT-guided biopsy were 91%,83%,100% and 71% separately.No severe complications were observed in our series.Conclusion CT-guided extremital bone biopsy is a safe,accurate and effective method.Bone drill,needle core and fine needle aspiration should be slected according to the type of bone lesions.In order to increasing its accuracy,the operator should avoid necrotic areas and select more then one point to get samples.One modality can be performed concomitantly with other one in the evaluation of bone lesions,since the three modalities are complementary.

OBJECTIVE:To establish a method for content determination of cyproheptadine hydrochloride in fuyan cream.METHODS:Ultraviolet spectophotometry was applied to determine the contents of cyprohepatadine hydrochloride as well as its adjuvant as two coexisting components without isolation and extraction,the wavelengths were286nm and258nm res_ pectively,linear regression and simultaneous equations were used to analyze the results.RESULTS:Cyproheptadine hydrochlor_ ide and its adjuvant showed good linear relationship in the range of2.52～25.2and2.5022～25.022?g/ml respectively,the average recovery of cyproheptadine hydrochloride was98.61%(RSD=1.08%).CONCLUSION:The present method is simple,convenient,reproducible and reliable,which is suitable for rapid determination for fuyan cream.

Polysaccharide from Lao Shan Polystictus versicolor possesses a significant inhibitory effect on transplanted S180 in ICR mice, and the inhibition rate after intraperitoneal injection of 10 mg/kg of the drug was 60-70%. Oral administration in certain dosage could also inhibit tumor growth.Polysaccharide was given intraperitoneally one week before the transplantation of ascitic sarcoma S180 It showed that the polysaccharide could prevent the growth of ascitic S180 effectively and prolong the life span of the mice. Peritoneal injection of the polysaccharide could enhance the capacity of macrophages to release H2O2 and of the spleenic lymphocytes to take 3H-TdR. It has been demonstrated that polysaccharied from Lao Shan Polystictus versicolor was not cytotoxic, and its anticarcinogenic effect was host mediated.

AIM: To investigate the effects of Src family kinases (SFKs) on adenosine 5'-triphosphate (ATP)-induced long-term potentiation (LTP) in the spinal dorsal horn. METHODS: Male Sprague-Dawley rats (250-280 g) were used in the experiments. Western blotting, electrophysiological recording in spinal dorsal horn in vivo and immunohistochemistry were used in the study. The C-fiber-evoked field potentials were recorded at the superficial layers of spinal dorsal horn at the lumbar enlargement and the phosphorylation level and location of SFKs in spinal dorsal horn were examined by Western blotting and immunohistochemistry. RESULTS: Thirty min and 60 min after ATP application, the levels of phosphorylated SFKs (p-SFKs) were significantly increased.The p-SFKs were expressed in microglia, but not in astrocytes or neurons. Spinal application of SFK inhibitors prevented ATP-induced LTP. CONCLUSION: Microglial SFKs may play an important role in ATP-induced LTP of C-fiber evoked field potentials in the spinal dorsal horn.

Objective To investigate the effect of pre- hospital emergency care programs in children with febrile seizures,in order to reduce damage by febrile seizures and obtain the best firstaid effect. Methods 112 cases of children with febrile seizures were treated in pediatric department of our hospital from April 2009 to February 2011.The parents of 75 children patients were given guidance of prehospital emergency care,they were set as the pre-hospital emergency care group.The other 37 cases were set as the non-pre-hospital emergency care group,routine emergency care was given until the medical personnel arrived at the spot.The conditions of aspiration,tongue bite injury,another episode of febrile seizures and brain damage were recorded in two groups of children. Results Only one case of aspiration and three cases of febrile seizures occurred in the pre-hospital emergency care group by misoperation of parents.Non brain damage and tongue bite injury occurred.The incidence rate of improper consequences was 5.3％in the pre-hospital emergency care group,lower than that of the non-pre-hospital emergency care group,51.4％. Conclusions To give pre-hospital emergency care guidance to parents of children patients by mobile phones before the health care workers reach the spot can significantly reduce accidental injury of children,stabilize the emotion of parents,decrease the impact of seizures on children,all the above has a positive effect on follow-up treatment.