Previous studies showed that crude antigens from Trichinella spiralis adult worms (AW) can be recognized by mouse infection sera at 8 days post infection. The aim of this study was to identify the early diagnostic antigenic bands in soluble proteins from T. spiralis AW by Western blot using early infection sera. The affecting factors of adult recovery were firstly observed in this study, and the results showed that the maximum number of adults was collected from small intestine when the female BALB/c mice were orally infected with 4000 ML and sacrificed at 3 days post infection. The results of Western blot analysis showed that seven protein bands (31, 35.1, 39, 40.6, 41.9, 47 and 50.6 kDa) could be recognized by early infection sera as early as at 8-10 days post infection, and were strongly reacted with mouse infection sera at 11-12 days post infection. Our results suggested that the seven protein bands of T. spiralis AW soluble proteins might be the early expressed antigens during the intestinal stage of Trichinella infection and therefore have potential value for the early diagnosis of trichinellosis.

Juvenile dermatomyositis (JDM) is an autoimmune disease manifesting as proximal muscle weakness and skin rash and can involve multiple systems and visceral organs. Myositis-specific autoantibodies (MSAs) are highly associated with various complications and prognosis in JDM. Patients with anti-Mi-2 antibodies tend to have good prognosis and typical clinical symptoms. Patients with anti-MDA5 antibodies often have diffuse interstitial lung disease and skin ulcer, with mild symptoms of myositis. Patients with anti-NXP2 antibodies often have calcinosis, and such antibodies are associated with gastrointestinal bleeding and perforation. Patients with anti-TIF1-γ antibodies have diffuse and refractory skin lesions. Anti-SAE antibodies are rarely detected in children, with few reports of such cases. This article reviews the features of clinical phenotypes in JDM children with these five types of MSAs, so as to provide a basis for the clinical treatment and follow-up management of children with JDM.
Autoantibodies ; Dermatomyositis ; Humans ; Lung Diseases, Interstitial/etiology* ; Myositis ; Prognosis

OBJECTIVE: To identify pathogenic mutation in a Chinese family affected with hereditary spastic paraplegia (HSP) through genetic testing and a follow-up survey. METHODS: Whole exome sequencing was performed on DNA samples of two patients and one unaffected member to screen candidate mutations. Sanger sequencing was used to validate the suspected mutations in all ten family members. RESULTS: Four patients and three asymptomatic members (under 25 years old) carried a c.1771T>C mutation of the KIAA0196, while the other three asymptomatic members (over 40 years old) did not carry the mutation. The mutation was predicted to be "affect protein function", "probably damaging" and "disease causing" by SIFT, PolyPhen-2 and Mutation Taster, respectively. Three asymptomatic carriers were followed up and one of them developed HSP one year later, while the other two had no signs of the disease yet. CONCLUSION The clinical phenotype of the c.1771T>C mutation of KIAA0196 has a considerable heterogeneity and this mutation may be a common pathogenic site of KIAA0196 mutations among Chinese patients with hereditary spastic paraplegia.
Adult ; Asian Continental Ancestry Group ; Heterozygote ; Humans ; Mutation ; Pedigree ; Phenotype ; Proteins ; genetics ; Spastic Paraplegia, Hereditary ; genetics

To understand the mutational characteristics of ATP7B gene of hepatolenticular degeneration in Xinjiang region. 24 cases were diagnosed as hepatolenticular degeneration and the exon of ATP7B gene was detected in some of their siblings and parents. A total of 45 ATP7B gene mutations (93.75%) were detected in 24 cases, of which 14 cases were homozygous mutations or compound heterozygous mutations, six cases were heterozygous mutations and four cases were no mutations. A total of 24 gene mutations and 14 SNPS were detected, including 8 new mutations: c.251C > A, c.121A > c, c.2945C > A, c.2194C > T, c.2947T > c, c.3626T > A, c.3662_3664del, c.3557G > T. The most common mutations were c.2621C > T (p.A874V) [16.7% (4/24)] and c.2333G > T (p.R778L) [12.5% ​​(3/24)]. A total of 4 cases were diagnosed as pre-symptomatic. In this study, the most common mutation in the ATP7B gene is A874V. The most common genetic mutations in Han and Uyghur patients were different. The most common mutation in Han and Uyghur patients is R778L and A874V. Exon 11 is the gene mutations hot spot for patients with hepatolenticular degeneration in Xinjiang region, and is one of the priority exons to be detected when screening patients with suspected hepatolenticular degeneration.

Objective: To carry out a quantitative estimate that related to the effects of short-term exposure to PM(2.5) on all-cause mortality and emergency visits in China by using the systematic review and Meta-analysis. Methods: We selected all the studies published before March 2018 from China National Knowledge Infrastructure, Wanfang database, PubMed and EMBASE and data on relative risk (RR), excess risk (ER) and their 95%CIs: appeared in these papers were extracted. According to the differences in the size or direction (heterogeneity) of the results, we computed summary estimates of the effect values using a random-effect or fixed effect model. We also conducted the subgroup analysis and Meta-analysis to have assessed the selected studies for the evidence of study bias. Results: A total of 33 original studies, indexed in databases, were identified. Among those studies, 39 sets of data on mortality and 4 sets of data on emergency were valid to show that within the daily concentration range from 47.7 to 176.7 μg/m(3), for 10 μg/m(3) increases in PM(2.5) concentrations, it would increase the daily numbers of deaths by 0.49% (95%CI: 0.39%-0.59%) and 0.30% (95%CI: 0.10%-0.51%) for all-cause deaths and all-cause emergency-room visits, respectively. For subgroup analysis, the combined effect of PM(2.5) in causing short-term all-cause deaths in the northern areas (ER=0.42%, 95%CI: 0.30%-0.54%) seemed lower than that in the southern areas (ER=0.63%, 95%CI: 0.44%-0.82%). The combined effect of PM(2.5) concentration below 75 μg/m(3) (ER=0.50%, 95%CI: 0.37%-0.62%) was higher than that of PM(2.5) concentration ≥75 μg/m(3) (ER=0.39%, 95%CI: 0.26%-0.52%). Conclusion: Within the concentration range from 47.7 to 176.7 μg/m(3), short-term exposure to current level of PM(2.5) might increase both the all-cause daily mortality and daily emergency visits in China.
Air Pollutants ; Air Pollution/statistics & numerical data* ; China ; Databases, Factual ; Emergency Service, Hospital/statistics & numerical data* ; Environmental Exposure/statistics & numerical data* ; Female ; Humans ; Male ; Particulate Matter/toxicity* ; Time Factors

Objective: To explore the relationship between different dimensions of infectious disease-specific health literacy scale in China. Methods: Structural equation model (SEM) was employed to assess the psychometric properties of the infectious disease-specific health literacy scale. Based on the database from a randomly selected sample of 4 499 adult residents in three provinces in China, from March to May 2015. AMOS 21.0 software was used to build the SEM for data analyses. Results: SEM analyses showed a good model fit of data, with the following satisfied parameters: goodness-of-fit index was 0.969, adjusted goodness-of-fit index was 0.962, root mean square residual was 0.038, root mean square error of approximation was 0.038, standardized root mean square residual was 0.032, Tacker-Lewis index/non-normed fit index was 0.926, comparative fit index was 0.934, normed fit index was 0.925, relative fit index was 0.915, incremental fit index was 0.934, parsimony goodness-of-fit index was 0.782, parsimony-adjusted normed fit index was 0.817, parsimony-adjusted comparative fit index was 0.825 and critical N was 702. The established SEM showed that the total influence path coefficient of "infectious disease-related knowledge and values" on the "infectious disease prevention" , "management or treatment of infectious diseases" and "identification of infection sources" were 0.771, 0.744 and 0.843, respectively. The total influence path coefficients of "identification of infection sources" , "infectious disease prevention" on "management or treatment of infectious diseases" were 0.164 and 0.535, respectively. The effect of "infectious disease-related knowledge and values" on "management or treatment of infectious diseases" appeared the greatest (55.4%), followed by "infectious disease prevention" (28.6%) and "identification of infection sources" (2.7%). Conclusion: This SEM could be optimistically used for planning and evaluation of health education and promotion programs on infectious diseases prevention.
Adult ; China ; Health Literacy ; Humans ; Models, Theoretical ; Psychometrics ; Surveys and Questionnaires

Health Status ; Hearing Loss, Noise-Induced/epidemiology* ; Humans ; Manufacturing Industry ; Noise, Occupational/adverse effects* ; Occupational Diseases ; Occupational Exposure

Objective To determine the value of transoral ultrasound ( US ) guided biopsy for oral tumors . Methods A consecutive series of 36 patients w ho underwent transoral US‐guided biopsy of oral tumors were evaluated retrospectively . By testing against histopathological results after surgery , the diagnostic sensitivity ,specificity ,positive predictive value ,negative predictive value and accuracy of transoral US‐guided biopsy for oral tumors were calculated . ROC curves were plotted and the area under the curve were evaluated . Results All 36 lesions were successfully performed transoral US‐guided biopsy . T he diagnostic sensitivity ,specificity ,positive predictive value ,negative predictive value and accuracy of this technique for the diagnosis of oral lesions were 87 .0% ,100% ,100% ,81 .3% and 91 .7% respectively . In ROC curve analysis , the area under the curve was 0 .935 . No serious complications were observed . Conclusions Transoral US‐guided biopsy can be considered as a safe and effective technology for early diagnosis and clinical treatment of oral tumors .

Brucellosis is an emerging infectious disease affecting humans and animals. In this study, we investigated the in vitro and in vivo effects of tannic acid (TA) against Brucella abortus infection. After infection, F-actin polymerization and mitogen-activated protein kinases (MAPKs) (ERK 1/2 and p38α) phosphorylation were reduced in TA-treated cells compared with that in control cells. The mice were infected via an intraperitoneal route and were orally given TA or phosphate-buffered saline for 14 days. Spleen weights of the TA-treated and control mice were not different; however, splenic proliferation of B. abortus was significantly reduced in the TA-treated group. Immune response analysis showed that, compared with the control group, non-infected TA-treated mice displayed increased levels of interferon-γ (IFN-γ), monocyte chemoattractant protein-1 (MCP-1), and interleukin-10 at 3 days post-infection and a further increase in IFN-γ and MCP-1 at 14 days post-infection. In contrast, compared with the control group, infected TA-treated mice displayed elevated levels of IFN-γ at 3 days post-infection, which continued to increase at 14 days post-infection, as was also observed for tumor necrosis factor. Taken together, the results showing TA activation of cytokine production and inhibition of bacterial proliferation in the host highlight a potential use of TA treatment in the control of Brucella infection.
Actins ; Animals ; Brucella abortus ; Brucella ; Brucellosis ; Chemokine CCL2 ; Communicable Diseases, Emerging ; Cytokines ; Humans ; In Vitro Techniques ; Interleukin-10 ; Mice ; Mitogen-Activated Protein Kinases ; Phosphorylation ; Polymerization ; Polymers ; Spleen ; Tannins ; Tumor Necrosis Factor-alpha ; Weights and Measures

Non-steady state noise has become the main type of workplace noise. Compared with steady state noise, non-steady state noise may cause more serious hearing loss. This paper reviews the new situation of occupational hearing loss caused by non-steady state noise exposure, the overview of international noise exposure assessment standards and new challenges, and the new evidence of non-steady state noise induced hearing loss, so as to provide the basis for the future research of non-steady state noise induced hearing loss.
Auditory Threshold ; Hearing Loss, Noise-Induced ; Humans ; Noise ; Noise, Occupational/adverse effects* ; Occupational Diseases/epidemiology*