This article has been retracted. Please see the retraction notice for more detail: https://doi.org/10.1631/jzus.B1800122.

Several reviews have assessed the relationship between exposure to ambient air pollution and adverse birth outcomes during pregnancy, but the results remain controversial. The objective of this study was to assess this correlation quantitatively and to explore sources of heterogeneity. We included all published case-control or cohort studies that evaluated the correlation between ambient air pollution and low birth weight (LBW), preterm birth (PTB), and small for gestational age (SGA). Analytical methods and inclusion criteria were provided on the PROSPERO website (CRD42018085816). We evaluated pooled effects and heterogeneity. Subgroup analyses (grouped by exposure period, study settings, study design, exposure types, data source, Newcastle-Ottawa quality score (NOS), and adjustment for smoking or meteorological factors) were also conducted and publication bias was examined. The risk of bias in systematic reviews (ROBIS) tool was used to evaluate the overall risk of bias in this review. Forty studies met the inclusion criteria. We observed pooled odds ratios (ORs) of 1.03–1.21 for LBW and 0.97–1.06 for PTB when mothers were exposed to CO, NO2, NOx, O3, PM2.5, PM10, or SO2 throughout their pregnancy. For SGA, the pooled estimate was 1.02 in relation to NO2 concentrations. Subgroup analysis and sensitivity analysis decreased the heterogeneity to some extent, such as the subgroups of continuous measures (OR=0.98 (0.97–0.99), I2=0.0%) and NOS>7 (OR=0.98 (0.97–0.99), I2=0.0%) in evaluating the association between PTB and NO2. This review was completed with a low risk of bias. High concentrations of air pollution were significantly related to the higher risk of adverse birth outcomes. However, the sources of heterogeneity among studies should be further explored.

Objective To study systemic hematogenic immunoreactions induced by bacterial infections using simulation of natural system.Methods Whole blood 0.2 mL or white blood cells 0.2 mL and plasma(or normal saline)0.3 mL were stimulated by 0.2 mL of yeast and inactivated Bacillus Calmette-Guerin(BCG,5?10~8/mL),respectively,which were incubated at 37℃for 1 h. Interleukin(IL)-8,C3,C4 and chemokine receptor Fy6 were detected by flow cytometry(FCM)and en- zyme-linked immunosorbentassay(ELISA).Results Bacteria could activate red blood cell to modulate IL-8 release from white blood cells in plasma.In nature experimental group,activation rate(37.04?34.84)of IL-8 was significantly higher than that(1.09?0.77)in isolation experimental group.In nature experimen- tal group,value increment(0.01?0.01)of complement C4 was significantly higher than that(-0.0027?0.008)of isolation experimental group(P

Objective To observe whether the expression of interferon-regulatory factor genes are re- lated to systemic lupus erythematosus (SLE).Methods The clinical data of 45 SLE patients and 37 normal controls were collected.Total RNA of peripheral blood was extracted and transcripted into cDNA.Sybr green dye based real-time quantitative PCR method was used to compare the expression (indicated as-??Ct value) of IRFI,IRF4,IRF8 in patients with SLE and those in the controls.Results The levels of IRF1,IRF4 and IRF8 mRNA were-3.90?0.19,-8.04?0.25 and 3.60?0.15 respectively in normal controls.In SLE patients, IRF4 mRNA expression was -8.82?0.18,higher than that in normal (P=0.011).But IRF8 mRNA expression was 3.09?0.13,lower than that in normal (P=0.012).Conclusion Abnormal IRF mRNA expression is found in the peripheral blood of SLE patients.IRFs may play roles in the pathogenesis of SLE by affecting the differen- tiation of Th cells.

OBJECTIVETo observe the changes of nitric oxide (NO) and endothelin (ET) serum level in the Guangxi BA-MA minipigs whose carotid arteries were injured by balloon denudation and in the patients with carotid stent assisted angioplasty.

METHODSTwelve Guangxi BA-MA minipigs were chosen. High fat/cholesterol feeding and endovascular balloon denudation were used to create a carotid artery atherosclerotic stenosis animal model. Blood samples were collected from peripheral veins before starting the procedure, and again, at 2 and 3 weeks after the procedure, respectively. Serum NO and ET concentrations of blood samples were tested. Nineteen patients with carotid artery stenosis who underwent stent assisted angioplasty were randomly selected, and their serum NO and ET were tested using the same methods as above.

RESULTSIn the animal group, there was a significant decrease of mean NO concentration at 2 weeks after carotid injury (t-test, P < 0.05), however, no significant change of ET was observed. A very significant increase of ET was observed at 3 weeks after the procedure (t-test, P < 0.01). In the patient group, there were no significant differences among serum NO or ET concentration of peripheral vein blood before, immediately after, and 6 h after the endovascular treatment.

CONCLUSIONSIn this study, a decrease of NO concentration and an increase of ET concentration of peripheral vein blood are found in BA-MA minipigs after carotid arteries are injured by balloon denudation, which might be a cue for the formation of atherosclerosis. However, no significant changes are observed in this group of patients who underwent carotid angioplasty treatment. Therefore, further studies are needed.

Aged ; Angioplasty, Balloon ; Animals ; Carotid Arteries ; surgery ; Carotid Stenosis ; blood ; surgery ; Disease Models, Animal ; Endothelins ; blood ; Female ; Humans ; Male ; Middle Aged ; Nitric Oxide ; blood ; Postoperative Period ; Random Allocation ; Stents ; Swine ; Swine, Miniature

Objective To investigate 3-year antiviral efficacy and side effect of adefovir dipivoxil (ADV) on the old patients with hepatitis B chronic infection.Methods 31 HBeAg-negative chronic hepatitis B virus infected old patients (include 8 patients with chronic hepatitis B and 23 patients with liver cirrhosis) with serum HBV DNA levels ＞ 1000 copies/ml,and ALT ＞ 2 times the upper limit of normal,without company with other liver diseases,cancer,renal dysfunction,and autoimmune disease.All the patients were treated with ADV orally (10 mg once daily) for 36 months.HBV DNA and biochemical and blood routine indexes were checked after treated.Result Serum total bilirubin,direct bilirubin,alamine aminotransferase,aspartate aminotransferase and load of HBV DNA decrease significantly after therapy (P ＜0.001).Other biochemical indexs and blood routine are no significant changes(P ＞ 0.05).Conclusion The way to treat with ADV is safe and effective for old patients with chronic hepatitis B virus infection.

OBJECTIVETo detect the variations in peripheral blood levels of autoantibodies, immunoglobulilns and complements in patients with non-lactational mastitis and investigate whether non-lactational mastitis is an autoimmune disease with immune dysfunction.

METHODSSeven-eight patients with non-lactational mastitis treated in our hospital between September 2013 and May 2015 and 88 healthy women (control) were examined for peripheral blood levels of antinuclear antibody (ANA), anti-histone antibody (AHA), immunoglobulins (IgA, IgM, and IgG) and complements (C3, C4, and total complements).

RESULTSs Of the 78 patients with non-lactational mastitis, 50 (64.10%) were positive of ANA showing mainly the granular and cytoplasmic granular fluorescence patterns, and the positivity rate was significantly higher than that in the control group (P<0.000). Twenty-eight (36.00%) of the patients were positive of AHA, a rate significantly higher than that in the control group (P<0.000). The levels of IgA, IgM, C4, and total complements levels were all significantly elevated in the patients compared with those in the control group (P<0.05).

CONCLUSIONPatients with non-lactational mastitis have abnormal changes in peripheral blood levels of immunoglobulins and complements with high positivity rates for ANA and AHA, indicating that non-lactational mastitis is an autoimmune disease with immune dysfunction.

Antibodies, Antinuclear ; blood ; Autoantibodies ; blood ; Autoimmune Diseases ; blood ; diagnosis ; Case-Control Studies ; Complement System Proteins ; analysis ; Female ; Humans ; Mastitis ; blood ; diagnosis

Purpose: This study investigated the value of synchronous tele-ultrasonography (TUS) for naive operators in thyroid ultrasonography (US) examinations. Methods: Ninety-seven patients were included in this prospective, parallel-controlled trial. Thyroid scanning and diagnosis were completed by resident A independently, resident B with guidance from a US expert through synchronous TUS, and an on-site US expert. The on-site expert’s findings constituted the reference standard. Two other off-site US experts analyzed all data in a blind manner. Inter-operator consistency between the two residents and the on-site US expert for thyroid size measurements, nodule measurements, nodule features, American College of Radiology (ACR) Thyroid Imaging Reporting and Data System (TI-RADS) categories, and image quality was compared. Two questionnaires were completed to evaluate the clinical benefit. Results: Resident B detected more nodules consistent with the on-site expert than resident A did (89.4% vs. 56.5%, P<0.001). Resident B achieved excellent consistency with the on-site expert in terms of ACR TI-RADS categories, nodule composition, shape, echogenic foci, and vascularity (all intra-class correlation coefficients [ICCs] >0.75), while resident A achieved lower consistency in ACR TI-RADS categories, composition, echogenicity, margin, echogenic foci, and vascularity (all ICCs 0.40-0.75). Residents A and B had excellent consistency in target nodule measurements (all ICCs >0.75). Resident B achieved better performance than resident A for gray values, time gain compensation, depth, color Doppler adjustment, and the visibility of key information (all P<0.05). Furthermore, 61.9% (60/97) of patients accepted synchronous TUS, and 59.8% (58/97) patients were willing to pay for it. Conclusion Synchronous TUS can help inexperienced residents achieve comparable thyroid diagnostic capability to a US expert.

This study was aimed to establish a genotyping method to detect ABO group gene of fetus from peripheral blood of pregnant women for prenatal diagnosis of hemolytic disease of newborn (HDN) resulting from ABO blood group incompatibility. 4 pairs of primers were designed according to ABO blood group gene DNA and mRNA sequences. 20 plasma DNA samples from healthy donors were extracted and amplified to explore the best conditions for plasma DNA extraction and PCR amplification. The O group plasma DNA was mixed with A group or B group plasmas by the ratios of 1:1, 2:1, 4:1, 8:1, 10:1, 20:1, 40:1, 100:1 to simulate the status of mixed ABO gene from pregnant maternal blood and to establish the mixed blood group ABO genotyping technology. The pregnant maternal blood samples with more than 30 weeks of gestation were selected for detecting the fetal ABO blood group genotype. The blood samples should be taken as possible as after birth for identification of ABO blood group and evaluation of sensitivity and accuracy of fetal ABO blood group genotyping technology through peripheral blood of pregnant women. The results indicated that the minimal amount of template DNA from single blood plasma for accuracy identification was at least about 0.625 ng, the DNA amount extracted from 500 microl of plasma could meet the requirement for PCR amplification. When the proportion of O group plasma DNA in mixed plasma DNA was ABO Blood-Group System ; genetics ; immunology ; Blood Group Antigens ; blood ; genetics ; Blood Grouping and Crossmatching ; methods ; Female ; Fetus ; immunology ; Genotype ; Humans ; Pregnancy

Objective To understand the viral etiology of viral encephalitis in China by detecting IgM antibody and viral RNA in the clinical samples of patients from some provinces of China by enzyme-linked immunosorbent assay and polymerase chain reaction. Methods Serum and cerebrospinal fluid samples of 771patients with viral encephalitis or meningitis were collected from six provinces of China and were stored at-20℃or - 70℃. Enzyme-linked immunosorbent assays were used for detection of IgM antibody to Japanese encephalitis virus, coxsackievirus, echovirus, herpes simplex virus, measles virus, varicella-zoster virus, mumps virus,cytomegalovirus and Epstein-BaiT virus. Polymerase chain reaction was applied for the detection of viral RNA of enteroviruses and seadornavirus. Results IgM antibody was detected in 567 of 771 (73.5 % ) eases. The most common pathogen was Japanese encephalitis virus (47.0% ,362/771), followed by mumps virus (10.6%, 82/771 ), enteroviruses (8.8% , 68/771 ), herpes simplex virus ( 5.7% , 44/771 ), measles virus ( 0. 4 % , 3/771 ),varicella-zoster virus (0.4% ,3/771 ), Epstein-Barr virus (0.4% , 3/771 ), and cytomegalovirus (0.3 % ,2/771 ) .Enterovirus was positive in 8 cases, seadoruavirus was negative in all the cases by PCR. Conclusion According to the study, Japanese encephalitis was the most important encephalitis in China. Mumps virus was another important pathogen. Enteroviruses and herpes simplex virus were also important pathogens.