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.

The hemodynamic effects of deliberated hypotension induced by PGE1 or SNP on 14 dogs anesthetized by ketamine were studied separately.MAP was decreased by 30%~40% after infusing PGE,or SNP Hemodynamic variables were measured before and 15 min 30 min after hypotension and 15 min after the discontinuation of infusion.The results indicated that SVRI, PVRI, MPAP, LVSWI and RVSWI all decreased significantly during PGE1-or SNP-induced hypotension. CVP decreased and HR increased significantly during SNP-induced hypotension, but with no significant change during PGE1-induced hypotension and with SVI. CI. PCWP remained unchanged in these two groups throughout the experiments.

Objective To study the causes, clinical feature,diagnoses and prognosis of pseudoprecocious puberty. Methods Thirty-eight cases with pseudoprecocious puberty were diagnosed by the serum LH and FSH of GnRHa stimulation test, pelvic ultrasonography and bone age assessment; they were treated and followed up. Results Peaks of LH were(0.49?0.48) IU/L, peaks of FSH were(0.54?0.78) IU/L, the level of E2 in 26 cases increased (36.11?15.70) ng/L,17-hydroxyprogesterone of 1 case was beyond 266 nmol/L. All cases showed hysterauxesis (3.98?1.18) mL. Cases of wrong contraceptive intake were 29,5 cases of McCune-Albright syndrome,2 cases of ovarian cyst, 1 case of ovarian granular cell tumor,1 case of congenital adrenal hyperplasia. Conclusions The causes of pseudoprecocious puberty are multifactors. Early diagnosis,therapy,follow-up are very important for prognosis.

OBJECTIVESince glucose-6-phosphate dehydrogenase (G6PD) deficiency is the most common hereditary hemolytic erythrocyte enzyme deficiency, most cases have single nucleotide mutations in the coding region, and current test methods for gene mutation have some missed detections, this study aimed to investigate the feasibility of RT-PCR sequencing in the detection of gene mutation in G6PD deficiency.

METHODSAccording to the G6PD/6GPD ratio, 195 children with anemia of unknown cause or who underwent physical examination between August 2013 and July 2014 were classified into G6PD-deficiency group with 130 children (G6PD/6GPD ratio <1.00) and control group with 65 children (G6PD/6GPD ratio≥1.00). The primer design and PCR amplification conditions were optimized, and RT-PCR sequencing was used to analyze the complete coding sequence and verify the genomic DNA sequence in the two groups.

RESULTSIn the G6PD-deficiency group, the detection rate of gene mutation was 100% and 13 missense mutations were detected, including one new mutation. In the control group, no missense mutation was detected in 28 boys; 13 heterozygous missense mutations, 1 homozygous same-sense mutation (C1191T) which had not been reported in China and abroad, and 14 single nucleotide polymorphisms of C1311T were detected in 37 girls. The control group showed a high rate of missed detection of G6PD deficiency (carriers) in the specimens from girls (35%, 13/37).

CONCLUSIONSRT-PCR sequencing has a high detection rate of G6PD gene mutation and a certain value in clinical diagnosis of G6PD deficiency.

Adolescent ; Child ; Child, Preschool ; Female ; Glucosephosphate Dehydrogenase ; genetics ; Glucosephosphate Dehydrogenase Deficiency ; diagnosis ; genetics ; Humans ; Infant ; Male ; Mutation ; Reverse Transcriptase Polymerase Chain Reaction ; methods ; Sequence Analysis, DNA

Adult ; Humans ; Male ; Occupational Diseases ; Pulmonary Aspergillosis

Objective To raise the awareness of acute kidney injury (AKI) and improve the level of diagnosis.Methods All the hospitalized adult patients in the Affiliated People's Hospital of Shanxi Medical University from January 2012 to July 2013 were screened.Those patients diagnosed as AKI were retrospectively analyzed in terms of incidence,the rate of missed diagnosis,etiology,distribution and prognosis of AKI.Results (1) The incidence of AKI in the patients was 0.67％ (381/56 835),the ratio of male to female was 1.91 ∶ 1,and the average age was (63.45±16.95) years.(2)There were 321 cases diagnosed as pre-renal AKI (84.25％),42 cases diagnosed as renal AKI (11.02％) and 18 cases diagnosed as post-renal AKI (4.72％).(3)There were 189 cases(49.61％) missed diagnosed among all the screened cases.The rates of missed diagnosis in neurosurgery,general surgery and cardiac surgery department was 62.96％,59.09％ and 50.00％,in cardiology,respiratory and neurology department was 50.00％,50.00％ and 45.45％ respectively.(4) Multivariate Logistic regression analysis showed that hypertension [odds ratio(OR)=1.631],renal replacement therapy(RRT)(OR=23.256) and oliguria history (OR=1.936) were independent risk factors of missed AKI diagnosis.Conclusion The missed diagnosis rate of AKI is high and has certain characteristics in different departments.Hypertension,RRT and oliguria history are independent impact factors of missed AKI diagnosis.

It is to difficult to diagnose and treat hepatobiliary surgical diseases since its diverse clinical manifestations,which increases the difficulty of clinical internship.Taking clinical cases as teaching material,case-based learning was combined with teaching theme and was conducted by means of discussion and question and answer between teachers and students.Students can know about concepts or theories related to teaching theme.Case-based learning in internship can consolidate basic knowledge of hepatobiliary surgery,cultivate clinical scientific thinking and is helpful in analyzing and resolving problems of hepatobiliary surgical diseases.

Objective To understand the situation of iodine deficiency disorders of Cangzhou city, Hebei province, in order to provide the scientific basis for prevention and control of iodine deficiency disorders. Methods From 2007 to 2009, dynamic monitoring of iodine deficiency disorders was carried out in low iodized salt coverage places Hejian city and Xian county. Nine towns were randomly chosen in each county, 4 administrative villages were randomly selected in each town, 8 household salts were tested in each village. Every year, 1 - 3 copies of residents water samples were collected for determination of iodine; more than 100 students age 8 - 10 years old were checked the situation of goiter and urinary iodine, more than 40 students selected were measured iodine content of salt from their home; more than 50 women of childbearing age 18 - 40 years were tested of urinary iodine. Thyroid was examined with palpation; water iodine and urine iodine concentration were measured with arsenic-Ce catalytic spectrophotometry; salt iodine was detected by direct titration. Results From 2007 to 2009,median household salt iodine were 4.3,15.9,3.6,18.4,4.6,11.7 mg/kg in Hejian city and Xian county, respectively,iodized salt accounted for 34.03% (98/288), 78.82% (227/288), 29.86% (86/288), 84.72% (244/288), 37.15%(107/288),49.31% (142/288), respectively, the consuming rate of iodized salt were 27.08% (78/288),36.46%( 105/288 ), 28.13% (81/288 ), 49.31% ( 142/288 ), 37.15 % ( 107/288 ), 30.90% ( 89/288 ), respectively. Ten samples of drinking water were tested, water iodine were 5.5 - 34.4 μg/L. From 2007 to 2009, the goiter rate of students aged 8 - 10 years old was below 5%, the median of urinary iodine were 138.1,176.6,112.0 μg/L, ＜ 100 μg/L ratio were 31.6% ( 65/206 ), 25.0% ( 52/208 ) and 44.4% (91/205 ). The median of urinary iodine of child-bearing age women were 167.3,164.2,78.1 μg/L, ＜ 100 μg/L ratio were 28.7%(29/101 ), 19.2%(20/104) and 60.0%(60/100).Conclusions In areas with low coverage of iodized salt, iodine nutrition level are affected, the child-bearing age

Objective To investigate the correlation between the reason of heterotopic ossification after cervical artificial disc replacement and the degeneration of cervical facet joints.Methods From May 2009 to May 2012,133 patients who had undergone cervical artificial disc replacement were included into this study.There were 74 males and 59 females with an average age of 42.63±4.15 years old (range,23-56 years old).There were 109 patients who had undergone single level implant,and 24patients double level implant.Cervical spine A-P and the flexion-extension X-rays were taken to assess the range of motion (ROM)of the surgical level.Degeneration degree of patients' cervical facet joints were evaluated by Park grading standards with the preoperative cervical CT scan images on GE-PACS system.Heterotopic ossification (HO) situation were evaluated by McAfee classification through cervical lateral X-ray film.Patients were divided into two groups (HO group and non-HO group) according to whether heterotopic ossification appeared during the follow-up period.The data were collected before surgery to the latest follow-up.Results The average follow-up time was 2.9 years (range,2.0-4.8 years).HO was detected in 25 patients (18.80％,25/133) at latest follow-up.The ROM of surgical level of patients in HO group was significantly lower than non-HO group (6.8°±3.9° vs 9.1 °±2.4°).In addition,the degeneration degree of cervical facet joints of patients in HO group was significantly higher than that in non-HO group.There was a significant correlation between preoperative cervical facet joint degeneration and the occurrence of HO after CDR (r=0.683,P=0.033).Conclusion There was a significant correlation between preoperative cervical facet joint degeneration and the occurrence of HO after CDR.Patients present HO after surgery have significantly higher degeneration degree of cervical facet joints than patients without HO.Patients with higher degree of HO may have a higher level of cervical facet joints degeneration.

Objective To investigate the correlation between+2964 G/A locus polymorphism of IL-5 gene and the impact of the polymorphism upon plasm IL-5 level.Methods polymerase chain reaction/restriction fragment length polymorphism(PCR/RFLP)techniquers were used to determine+2964 locus polymorphism in asthma and control group,and plasm IL-5level were determined by ELISA.Results The frequency of allele G,A of+2964 locus had significant difference between two groups(x~2=17.26,P0.05,In each group,the plasm IL-5 level of subjects with G allele was higher than that of subjects without G allele,the plasm IL-5 level of asthma group was higher than that of control group with same genetype.Conclusion The+2964 polymorphism of STAT6 gene may be an important candidate gene for asthma.G allele is associated with asthma and increases the plasm IL-5 level.