Objective: To evaluate the effects of the modified fixed r everse Twin-block appliance(TBA) combined with maxillary protraction appliance( MPA) in the treatment of early Angle Ⅲ skeletal anterior crossbite. Met hods:TBA combined with MPA was used in 15 growing subjects with early An gle Ⅲskeletal malocclusion (group TBA-MPA). Another 15 subjects with the same type of malocclusion were treated by MPA(group MPA). The effects of treatment we re studied by cephalometric measurments.Results:3-5 months afte r treatment SNB, B-Vert T, Po-Vert T,NPo-FH,Co-Po and 1-NB in group 1 were decreased more than those in group 2 (P0.05).Conclusion:Angle Ⅲ skeletal ante rior crossbite can be corrected successfully with reverse TBA combined with maxi llary protraction appliance by mandible retrusion and maxilla forward growth.

We retrospectively reviewed the tongue images and related clinical data of 118 AIDS patients treated in Shanghai Public Health Clinical Center Affiliated to Fudan University. The tongue images included: cyanotic and purplish tongue ( 33, 28.0% ), light-reddish tongue ( 32, 27.1% ), light-whitish tongue (21, 17.8% ) , bulgy tongue(19, 16.1% ), dark-red tongue (7, 5.9% ) and fissured tongue (6,5.1% ). There were significant differences in counts of CD4+T lymphocytes, white blood cells and red blood cells among different tongue imagine groups. The tongue image can indicate the pathogenic factors of disease as well as the functions of viscera in AIDS patients.

Volume concentration determination for atmospheric krypton and xenon is very important for krypton-85 and radioactive xenon isotopes monitoring. An injection setup integrated adjustable quantity sample injection and quantitative dilution function was designed. The effects of EI source parameters on the sensitivity of MS detector were studied. The optimized values were as following: ionization energy of 70 eV, emission current of 40 mA, cathode voltage of 27 mV, focus voltage of 85 mV and lens compensation of 20 V, respectively. A GC-MS method for the determination of krypton and xenon in atmosphere without of sample pretreatment was developed. The minimal detected concentrations for krypton and xenon were 3. 3×10-8(V/V) and 2. 6×10-9(V/V). Moreover, the krypton and xenon concentrations in the ground level air around our laboratory were measured with the results of 1 . 1 × 10-6 ( V/V ) and 9 . 3 × 10-8 ( V/V ) . The related combined standard uncertainties for krypton and xenon results were 2. 38% and 3. 15%, respectively.

Objective: To observe the proliferation of periodontal ligament fibroblasts(PDLFs) under mechanical stretching. Methods: PDLFs were stretched by 6 cycles/min(5 seconds stretching and 5 seconds relaxing) with 12% stretching force through self-produced cultured cell loading system. At experimental time point 24,48 and 96 hours, the cells were counted and flow cytometry was employed to observe the proliferation of PDLFs. Results: 48 h and 96 h after stretch treatment the cells in experimental groups were significantly more than those in control groups respectively (P

Objective To investigate the molecular epidemiology of hepatitis B virus(HBV) in child carriers. Methods Blood samples were collected from children under 15 in Jiangsu and Zhejiang provinces. Enzyme immunoassay(EIA) and microparticle enzyme immunoassay(MEIA) were applied to screen hepatitis B surface antigen(HBsAg) positive children. Nested-PCR and real time PCR were used to amplify the HBV S gene and detected HBV DNA loads. S gene sequence and three-dimensional structure were analyzed by the DNASTAR and VMD1.8.6, respectively. SPSS 12.0 software was applied for data processing. Results A total of 64 HBsAg-positive cases were found in the screened children, from which 41 HBV S gene sequences were obtained. The average HBV DNA loads were(4.15±0.79)×10~7 copies/mL in 64 HBV carriers. Among 41 sequences. genotype C, B and B+C accounted for 82.93%(34/41), 12.19%(5/41)and 4.88%(2/41), respectively; and the serotypes were adr(34/39,87.18%), adw(4/39,10.24%) and ayr (1/39, 2.56%) with 2 strains unable to be sub-typed. The most common variants of "a" determinant in HBV S gene were 129 site Q→F(glutamine→phenylalanine), 145 site G→R(glycine→lysine), 131 site S→N(serine→asparagine)and 144 site C→A(cysteine→alanine), and the mutation frequencies were 12.20%(5/41), 4.88%(2/41), 2.27%(1/41)and 2.27%(1/41), respectively . The total mutation frequency was 21.95%(9/41). The S protein spatial structures of 129 site "Q→F" and 145 site "G→R" were entirely different from that of the wild strain. Conclusion Wild strain of HBV(C/adr) is predominant in the children HBV carriers, exhibiting a high replication, and the HBV vaccine should be still effective.

Objective To explore the value of combined detection of parathyroid hormone(PTH),β2-microglobulin(β2-MG)and high sensitivity C-reactive protein(hs-CRP)in differentiating diagnosis of acute and chronic renal failure. Meth?ods Patients diagnosed with renal failure was divided into acute renal failure patients group (n=64) and chronic renal fail?ure group (n=74) . Other patients with non-renal failure kidney disease (NRF group, n=80) and healthy adult (control group, n=80) were also selected. Levels of PTH,β2-MG, hs-CRP , PTH+β2-MG, PTH+hs-CRP,β2-MG+hs-CRP and PTH+β2-MG+ hs-CRP were compared between these four groups to choose the optimal combination for differential diagnosis. Re?sults Hs-CRP in ARF group was significantly higher than that in control group and CRF group. Levels of PTH andβ2-MG were significantly lower in ARF group than that in CRF groups but not in control group (P < 0.01). hs-CRP andβ2-MG in the ARF group were moderately higher (68.7%) and severely higher (81.2%) while PTH was mild higher (25%) in ARF group than those in control group, On the other hand, hs-CRP andβ2-MG in the ARF group were moderately higher (56.8%) and severely higher (98.6%) while PTH was mild higher (39.2%) in ARF group than those in control group. Combina?tion of hs-CRP withβ2-MG could increase total case rate (TCR) and Youden index (YI) of ARF;while combination of PTH andβ2-MG could improve the TCR and YI of CRF. Conclusion Combined detection of PTH,β2-MG and hs-CRP is use?ful in differential diagnosis of ARF and CRF.

Objective:To investigate the diagnostic performance of Xpert Mycobacterium tuberculosis/rifampin (Xpert MTB/RIF) assay for pulmonary tuberculosis (TB) in patients with acquired immunodeficiency syndrome (AIDS). Methods:Clinical data of 226 patients with AIDS and suspected pulmonary TB in Shanghai Public Health Clinical Center, Fudan University from July 2017 to November 2019 were retrospectively analyzed. Fluorescence staining microscopy of sputum smear, BACTEC MGIT 960 liquid culture (or Roche solid culture) and Xpert MTB/RIF assay were implemented respectively. The sensitivity and specificity of Xpert MTB/RIF in the diagnosis of Mycobacterium tuberculosis (MTB) infection and rifampin resistance were analyzed. Results:Totally 226 patients of suspected pulmonary TB were enrolled. There were 94(41.6%) patients had positive mycobacterium culture, in which 51 (54.3%) were MTB and 43 (45.7%) were nontuberculous mycobacteria (NTM). Using the positive MTB culture of sputum and mycobacterial protein from BCG of Rm 0.64 in electrophoresis (MPB64) as reference standard, the sensitivity and specificity of Xpert MTB/RIF assay for MTB diagnosis were 72.6%(95% confidence interval ( CI) 66.7%-78.4%) and 97.1% (95% CI 95.0%-99.3%), respectively. The sensitivity and specificity of Xpert MTB/RIF assay for MTB diagnosis in patients with positive sputum smear were 76.7%(95% CI 67.7%-85.8%) and 90.0(95% CI 83.6%-96.5%), respectively. The sensitivity and specificity of Xpert MTB/RIF assay for MTB diagnosis in patients with negative sputum smear were 50.0%(95% CI 41.8%-58.2%)and 99.3%(95% CI 97.9%-100.0%), respectively. With phenotypic resistance as reference standard, the sensitivity and specificity of Xpert MTB/RIF assay for rifampicin resistance were 75.0% and 100.0%, respectively. Conclusion:Among AIDS patients, the performance of Xpert MTB/RIF assay for pulmonary TB diagnosis is pretty good and could differentiate MTB from NTM rapidly, which has good application value.

OBJECTIVE: To identify the newborns who should receive hearing evaluation by hearing screening in high risk newborns; to find and confirm the high risk factors of hearing disorders in high risk newborns. METHOD: The first screening was performed by DPOAE. Newborns did not passed the first screening undertook second screening using DPOAE + ABR. and newborns did not passed the second screening received hearing evaluation. High risk factors of hearing loss were found by Logistic regression analysis. RESULT: Three hundred and twenty-seven cases were screened. The positive ratio in first screening was 37.0%. The positive ratio in second screening was 11.0%. Ten cases were diagnosed as hearing loss and the incidence of hearing loss was 3.39%. High risk factors of hearing loss were asphyxiation, very low born weight (<1,500 g) and head and neck abnormality. CONCLUSION (1) DPOAE combined with ABR is credible and feasible in hearing screening of high risk newborns. (2) High risk factors of hearing loss were asphyxiation, very low born weight (<1,500 g) and head and neck abnormality in this study.
Female ; Hearing Disorders ; diagnosis ; epidemiology ; prevention & control ; Hearing Loss ; diagnosis ; epidemiology ; prevention & control ; Hearing Tests ; Humans ; Incidence ; Infant, Newborn ; Male ; Neonatal Screening ; Risk Factors

Objective:To evaluate the efficacies of lopinavir/ritonavir and abidol in the treatment of novel covonavirus pneumonia (NCP).Methods:The clinical data of 134 patients with NCP receiving treatment at Shanghai Public Health Clinical Center during January 20 to February 6, 2020 were retrospectively collected. All the patients received interferon-α2b spray and symptomatic supportive treatment, and 52 cases received oral lopinavir/ritonavir treatment, 34 cases received oral abidol treatment, the remaining 48 cases did not take any antiviral drugs. The efficacies of the three groups were compared, and Chi-square test was used for statistical analysis.Results:The 134 patients included 69 males (51.5%) and 65 females (48.5%), aged 35 to 62 years with the average of 48 years. The median time to temperature normalization in patients receiving abidol or lopinavir/ritonavir treatment was both six days after admission, and that was four days in the control group, with no significant difference ( χ2=2.37, P=0.31). The median time for polymerase chain reaction (PCR) negative in the respiratory specimens in the three groups was all seven days after admission, and the PCR negative rates at day seven after admission in lopinavir/ritonavir, abidol and control groups were 71.8% (28/39), 82.6% (19/23) and 77.1% (27/35), respectively, which were not significantly different ( χ2=0.46, P=0.79). Radiological worsening at day seven was observed in comparable proportions of patients in the three groups, which were 42.3% (22/52), 35.3% (12/34) and 52.1% (25/48), respectively( χ2=2.38, P=0.30). Adverse reactions occurred in 17.3% (9/52), 8.8% (3/34) and 8.3% (4/48) patients, respectively in the three groups ( χ2=2.33, P=0.33). Conclusions:This study does not find any effects of lopinavir/ritonavir and abidol on relieving symptoms or accelerating virus clearance. The efficacies of these two drugs in NCP treatment need further investigation.

Objective:To investigate the risk factors of cardiovascular diseases (CVD) in human immunodeficiency virus/acquired immunodeficiency syndrome (HIV/AIDS) patients who did not receive anti-retroviral therapy (ART), and to provide reference for the follow-up ART scheme selection and CVD monitoring and management.Methods:A cross-sectional survey was conducted on 372 HIV/AIDS patients who did not initiate ART in the Department of Infection and Immunity, Shanghai Public Health Clinical Center, Fudan University from November 2018 to January 2020. According to the structured questionnaire, the basic information of HIV/AIDS patients, traditional risk factors of CVD (including smoking status, hypertension, diabetes, CVD family history) and HIV related factors were collected. The Framingham risk score and the data collection on adverse events of anti-HIV drugs (D∶A∶D (R)) score were used to evaluate the risk of CVD for 10 years. Logistic regression was used to analyze the influencing factors of CVD risk score≥10% in 10 years.Results:Among the 372 patients, 339(91.13%) were male and 33 (8.87%) were female. The age was 34(18, 80) years. The incidence of hypertension and diabetes were 12.20%(41/336) and 5.71%(21/368), respectively. There were 111 cases (30.16%, 111/368) with CD4 + T lymphocyte count <200/μL. Among 368 patients who underwent blood lipid test, high density lipoprotein-cholesterol (HDL-C) decreased in 199 cases (54.08%), triglyceride increased in 136 cases (36.96%), total cholesterol elevated in 44 cases (11.96%), and low density lipoprotein-cholesterol increased in 36 cases (9.78%). Statins were administrated in four cases (9.09%, 4/44). Among the 365 patients who met the D∶A∶D (R) score, age≥50 years old (odds ratio ( OR)=216.71, 95% confidence interval ( CI) 72.70-749.01, P<0.01) and HDL-C <1.0 mmol/L ( OR=6.35, 95% CI 2.22-18.09, P<0.01) were risk factors for 10-year CVD risk score≥10%. Among 233 patients who met the requirements of Framingham score, age≥50 years old ( OR=7.79, 95% CI 3.24-18.75, P<0.01) and CD4 + T lymphocyte count <200/μL( OR=1.88, 95% CI 0.10-3.56, P<0.05) were risk factors for 10-year CVD risk≥10%. Conclusions:There are many CVD risk factors among patients who have not initiated ART. The patients have high scores of 10-year CVD risk, while the intervention rate is low. Patients have higher CVD risks when age≥50 years old, CD4 + T lymphocyte count <200/μL and HDL-C <1.0 mmol/L. Therefore, screening and risk assessment of CVD risk factors should be included in the routine management and care of HIV/AIDS patients without ART initiation.