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Biomedical and Environmental Sciences: BES

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https://www.readbyqxmd.com/read/29866224/serosurvey-of-avian-metapneumovirus-orithobacterium-rhinotracheale-and-chlamydia-psittaci-and-their-potential-association-with-avian-airsacculitis
#1
Zong Hui Zuo, Tian Yuan Zhang, Yong Xia Guo, Jun Chu, Guang Gang Qu, Li Zhong Miao, Zhi Qiang Shen, Cheng He
Seasonal outbreaks of airsacculitis in China's poultry cause great economic losses annually. This study tried to unveil the potential role of Avian metapneumovirus (AMPV), Ornithobacterium rhinotracheale (ORT) and Chlamydia psittaci (CPS) in avian airsacculitis. A serological investigation of 673 breeder chickens and a case-controlled study of 430 birds were undertaken. Results showed that infection with AMPV, ORT, and CPS was highly associated with the disease. The correlation between AMPV and CPS were positively robust in both layers and broilers...
May 2018: Biomedical and Environmental Sciences: BES
https://www.readbyqxmd.com/read/29866223/effects-of-infrasound-on-gastric-motility-gastric-morphology-and-expression-of-nitric-oxide-synthase-in-rat
#2
Ju Hui Zhao, Jin Hai Wang, Jin Yan Luo, Xiao Yan Guo, Yan Wang, Yan Cheng
Infrasound widely exists in nature, our living condition, productive and traffic environment. Gastrointestinal tract is relatively sensitive to infrasound. However, the effect of infrasound on gastrointestinal function is unclear. Therefore, the purpose of our study was to observe the effects of infrasound on gastric motility and gastric morphology and to assess the expression of nitric oxide synthase (NOS) in gastric antrum after exposure to infrasound of 8 Hz - 130 dB for 2 hours per day for 14 consecutive days...
May 2018: Biomedical and Environmental Sciences: BES
https://www.readbyqxmd.com/read/29866222/association-between-physical-activity-and-telomere-length-in-a-north-chinese-population-a-china-suboptimal-health-cohort-study
#3
Li Xiang Ding, Yan Hong Zhang, Xi Zhu Xu, Jie Zhang, Ming SUNg, Di Liu, Zhong Yao Zhao, Yong Zhou, Qun Zhang, You Xin Wang
Several studies have demonstrated an association between physical activity and telomere length; however, the association remains inconsistent. A cross-sectional study consisting of 588 participants (375 females, median age of 33.8 years) was carried out to investigate the association between telomere length and physical activity in a general population from North China. The results show that relative telomere length is not significantly different in participants in the northern Chinese population with different levels of physical activity, either in the model only adjusted for age (F = 2...
May 2018: Biomedical and Environmental Sciences: BES
https://www.readbyqxmd.com/read/29866221/molecular-characterization-and-correlation-with-%C3%AE-lactam-resistance-of-streptococcus-pneumonia-isolates-in-hangzhou-china
#4
Mei Fen Chu, Xiao Xiang Liu, Shao Ni Zhang, Yan Ying Huang, Peng DU, Li Fang Wang, Lei Ji, Jie Yan, Ai Hua Sun
Penicillin-binding proteins (PBPs) are the target of β-lactam antibiotics (the major treatment for Streptococcus pneumoniae infections), and mutations in PBPs are considered as a primary mechanism for the development of β-lactam resistance in S. pneumoniae. This study was conducted to investigate the mutations in the PBPs of clinical S. pneumoniae isolates in Hangzhou, China, in correlation with β-lactam resistance. Results showed that 19F was the predominant serotype (7/27) and 14 of the S. pneumoniae isolates were resistant to both penicillin G and cephalosporin...
May 2018: Biomedical and Environmental Sciences: BES
https://www.readbyqxmd.com/read/29866220/subjective-well-being-and-family-functioning-among-adolescents-left-behind-by-migrating-parents-in-jiangxi-province-china
#5
Jia Zhou, Fang Hu, Jing Wu, Zhi Yong Zou, Yi Xin Wang, Hua Can Peng, Sten H Vermund, Yi Fei Hu, Ying Hua Ma
We sought to identify the differences between adolescents left behind in their home villages/towns (LBA) and non-left behind adolescents (NLB) on subjective well-being and family functioning due to parental migration in south China. We used a stratified cluster sampling method to recruit middle school students in a city experiencing population-emigration in Jiangxi Province in 2010. Participants included adolescents from families with: (1) one migrant parent, (2) both parents who migrated, or (3) non-left behind adolescents (i...
May 2018: Biomedical and Environmental Sciences: BES
https://www.readbyqxmd.com/read/29866219/prevalence-and-years-lived-with-disability-for-dental-caries-among-children-aged-0-14-years-in-china-1990-2016
#6
Wen Zhao Liu, Ling Yu Su, Xu Dong Xie, Xue Rong Xiang, Jiao Huang, Ping Ji
The estimate of dental caries among Chinese children at the microscale level using standard methodology remains unclear. In this study, we assessed and analyzed the disease burden of childhood dental caries in China by extracting data from the Global Burden of Disease, Injuries, and Risk Factors Study 2016 (GBD 2016). In 2016, the number of cases, prevalence, years lived with disability (YLD), and age-standardized YLD rate of dental caries was 93.0 million, 43.0%, 32,200 person years, and 14.8 per 100,000, respectively...
May 2018: Biomedical and Environmental Sciences: BES
https://www.readbyqxmd.com/read/29866218/subchronic-oral-toxicity-evaluation-of-lanthanum-a-90-day-repeated-dose-study-in-rats
#7
Hai Qin Fang, Zhou Yu, Yuan Zhi, Jin Fang, Chen Xi Li, Yi Mei Wang, Shuang Qing Peng, Xu Dong Jia
OBJECTIVE: The present study was undertaken to evaluate the subchronic toxicity of lanthanum and to determine the no observed adverse effect level (NOAEL), which is a critical factor in the establishment of an acceptable dietary intake (ADI). METHODS: In accordance with the Organization for Economic Co-operation and Development (OECD) testing guidelines, lanthanum nitrate was administered once daily by gavage to Sprague-Dawley (SD) rats at dose levels of 0, 1.5, 6...
May 2018: Biomedical and Environmental Sciences: BES
https://www.readbyqxmd.com/read/29866217/genetic-diversity-and-drug-susceptibility-of-mycobacterium-tuberculosis-isolates-in-a-remote-mountain-area-of-china
#8
Ai Jing Ma, Sheng Fen Wang, Jia Le Fan, Bing Zhao, Guang Xue He, Yan Lin Zhao
OBJECTIVE: We determined the genetic diversity of Mycobacterium tuberculosis (MTB) in a remote mountainous area of southwest China and evaluated the resolving ability of single nucleotide polymorphism (SNP) genotyping combined with variable number tandem repeat (VNTR) genotyping for Beijing family strains in association with drug resistance status. METHODS: Three hundred thirty-one MTB strains were isolated from patients living in mountainous regions of southwest China, and 8-loci SNP, VNTR-15 genotyping assays, and drug susceptibility testing of 9 drugs were performed...
May 2018: Biomedical and Environmental Sciences: BES
https://www.readbyqxmd.com/read/29866216/efficient-humoral-and-cellular-immune-responses-induced-by-a-chimeric-virus-like-particle-displaying-the-epitope-of-ev71-without-adjuvant
#9
Pu Liang, Yao Yi, Qiu Dong Su, Feng Qiu, Xue Ting Fan, Xue Xin Lu, Sheng Li Bi
OBJECTIVE: To eliminate the side effects of aluminum adjuvant and His-tag, we constructed chimeric VLPs displaying the epitope of EV71 (SP70) without His-tagged. Then evaluating whether the VLPs could efficiently evoke not only humoral but also cellular immune responses against EV71 without adjuvant. METHODS: The fusion protein was constructed by inserting SP70 into the MIR of truncated HBcAg sequence, expressed in E. Coli, and purified through ion exchange chromatography and density gradient centrifugation...
May 2018: Biomedical and Environmental Sciences: BES
https://www.readbyqxmd.com/read/29866215/decrease-in-serum-amyloid-a-protein-levels-following-three-month-stays-in-negatively-charged-particle-dominant-indoor-air-conditions
#10
Suni Lee, Shoko Yamamoto, Yasumitsu Nishimura, Hidenori Matsuzaki, Kei Yoshitome, Tamayo Hatayama, Miho Ikeda, Min Yu, Nagisa Sada, Naoko Kumagai-Takei, Takemi Otsuki
OBJECTIVE: The changes in serum adipokines and cytokines related to oxidative stress were examined during 3 months 'Off to On' and 'On to Off' periods using negatively charged particle-dominant indoor air conditions (NCPDIAC). METHODS: Seven volunteers participated in the study, which included 'OFF to 3 months ON' periods (ON trials) for a total of 16 times, and 'ON to 3 months OFF' (OFF trials) periods for a total of 13 times. RESULTS: With the exception of one case, serum amyloid A (SAA) levels decreased significantly during the ON trials...
May 2018: Biomedical and Environmental Sciences: BES
https://www.readbyqxmd.com/read/29866214/optical-coherence-tomography-features-of-tuberculous-serpiginous-like-choroiditis-and-serpiginous-choroiditis
#11
Xiao Na Wang, Qi Sheng You, Hui Ying Zhao, Xiao Yan Peng
OBJECTIVE: To investigate optical coherence tomography (OCT) characteristics of tuberculous serpiginous-like choroiditis (Tb-SLC) and serpiginous choroiditis (SC) and to perform OCT to differentiate between these conditions. METHODS: This retrospective, case-control study examined consecutively enrolled patients with active Tb-SLC or SC. Patients underwent comprehensive ocular examinations and imaging (OCT, color fundus photography, autofluorescence imaging, fluorescein angiography, and indocyanine green angiography)...
May 2018: Biomedical and Environmental Sciences: BES
https://www.readbyqxmd.com/read/29773097/polymorphism-in-rs2229783-of-the-alpha-1-xi-collagen-gene-is-associated-with-susceptibility-to-but-not-severity-of-kashin-beck-disease-in-a-northwest-chinese-han-population
#12
Xiao Wei Shi, Feng Zhang, Zhi Yan Li, Ai Li Lyu, Xiong Guo
A case-control study was conducted to investigate associations between organophosphate pesticide (OP) exposure, aggression, impulsivity, and attempted suicide. The purpose of this study was to explore whether genomic polymorphisms in the alpha 1(XI) collagen gene (COL11A1) were associated with the risk and severity of Kashin-Beck disease (KBD). Twenty-two single nucleotide polymorphisms (SNPs) in COL11A1 were genotyped in 274 KBD cases and 249 healthy controls using the Sequenom MassARRAY system. The expression of type XI collagen (COL11A) in the knee articular cartilage of 22 KBD patients and 21 controls was analyzed by immunohistochemistry...
April 2018: Biomedical and Environmental Sciences: BES
https://www.readbyqxmd.com/read/29773096/acceptance-of-chemo-prophylaxis-for-latent-tuberculosis-infection-among-high-school-college-student-contacts-of-tuberculosis-patients-in-shanghai-china
#13
Yang Li, Yi Hui Zheng, Li Ping Lu, Mei Xia Yang, Chang Ming Zhou, Zheng An Yuan, Yi Hu, Biao Xu
Student contacts of tuberculosis (TB) cases are susceptible to latent tuberculosis infection (LTBI), and chemo-prophylaxis can reduce the risk of active TB among them. This study aimed to assess the acceptance of chemo-prophylaxis for LTBI among students, and their concerns regarding TB and its preventive treatment. A total of 560 students contacts were included in the investigation. The extent of contact was categorized from high to low (4 levels) with 12.9% of the students being close contacts. About 87.0% of the students were willing to receive chemo-prophylaxis if diagnosed with, LTBI, whereas 73 students declined...
April 2018: Biomedical and Environmental Sciences: BES
https://www.readbyqxmd.com/read/29773095/the-role-of-fibrocyte-in-the-pathogenesis-of-silicosis
#14
Juan Li, Wu Yao, Jian Yong Hou, Lin Zhang, Lei Bao, Hui Ting Chen, Di Wang, Zhong Zheng Yue, Yi Ping Li, Miao Zhang, Xing Hao Yu, Jian Hui Zhang, Ya Qian Qu, Chang Fu Hao
Exposure to free silica induces silicosis and myofibroblasts are regarded as primary effector cells. Fibrocytes can differentiate into myofibroblast. Therefore, the present study was designed to investigate whether fibrocytes participate in silicosis. The rat model of silicosis was established. Hematoxylin-eosin stainings and Masson stainings were used to evaluate the histopathology and collagen deposition. Flow cytometry and immunofluorescence were performed to detect the number of fibrocytes and their contribution to myofibroblasts...
April 2018: Biomedical and Environmental Sciences: BES
https://www.readbyqxmd.com/read/29773094/replication-and-pathology-of-duck-influenza-virus-subtype-h9n2-in-chukar
#15
Yin Chuan Zhu, Bin Zhang, Zeng Hui Sun, Xi Jing Wang, Xiao Hui Fan, Ling Xi Gao, Ying Liang, Xiao Yan Chen, Zeng Feng Zhang
To investigate the susceptibility of Chukars to duck avian influenza virus H9N2 and explore their role in interspecies transmission of influenza viruses. Chukars were inoculated with duck avian influenza viruses H9N2. The present study demonstrated that inflammatory lesions and virus antigen were present in the trachea, bronchus, and parabronchus, and the viruses could be isolated from throat swabs and lung tissue homogenate supernatants. At 14 d post virus inoculation, anti-H9 influenza virus antibody in the serum was detected...
April 2018: Biomedical and Environmental Sciences: BES
https://www.readbyqxmd.com/read/29773093/combined-influence-of-insulin-resistance-and-inflammatory-biomarkers-on-type-2-diabetes-a-population-based-prospective-cohort-study-of-inner-mongolians-in-china
#16
Qiao Yan Qiu, Bei Lei Zhang, Ming Zhi Zhang, Jia Hui Wu, Jing Wen Zhou, Zhu Liang, Yong Hong Zhang, Shao Yan Zhang
This prospective study was designed to examine the combined influence of insulin resistance (IR) and inflammatory biomarker levels on type 2 diabetes mellitus (T2DM) among 1,903 Inner Mongolians. During follow-up, 205 (10.77%) participants developed T2DM, and the incidence of T2DM was higher among subjects with IR, elevated C-reactive protein (CRP), elevated sICAM-1, elevated sE-selectin, or the coexistences of IR with elevated CRP, elevated sICAM-1, elevated sE-selectin, and elevated angiotensin II (all P < 0...
April 2018: Biomedical and Environmental Sciences: BES
https://www.readbyqxmd.com/read/29773092/preliminary-study-on-drug-susceptibility-profile-and-resistance-mechanisms-to-macrolides-of-clinical-isolates-of-non-tuberculous-mycobacteria-from-china
#17
Fu Li, Gui Lian Li, Hui Pang, Hai Can Liu, Tong Yang Xiao, Shuang Jun Li, Qiao Luo, Yi Jiang, Rui Bai Wang, Kang Lin Wan
OBJECTIVE: Macrolide susceptibility and drug resistance mechanisms of clinical non-tuberculous mycobacteria (NTM) isolates were preliminarily investigated for more accurate diagnosis and treatment of the infection in China. METHODS: Four macrolides, including clarithromycin (CLAR), azithromycin (AZM), roxithromycin (ROX), and erythromycin (ERY), were used to test the drug susceptibility of 310 clinical NTM isolates from six provinces of China with the broth microdilution method...
April 2018: Biomedical and Environmental Sciences: BES
https://www.readbyqxmd.com/read/29773091/inactivated-sendai-virus-induces-ros-dependent-apoptosis-and-autophagy-in-human-prostate-cancer-cells
#18
Miao Qian, Hai Ming Tan, Ning Yu, Tao Wang, Quan Zhang
OBJECTIVE: The current study aims to investigate the effect of Hemagglutinating virus of Japan envelope (HVJ-E) on induction of apoptosis and autophagy in human prostate cancer PC3 cells, and the underlying mechanisms. METHODS: PC3 cells were treated with HVJ-E at various multiplicity of infection (MOI), and the generated reactive oxygen species (ROS), cell viability, apoptosis, and autophagy were detected, respectively. Next, the role of ROS played in the regulation of HVJ-E-induced apoptosis and autuphagy in PC3 cells were analysed...
April 2018: Biomedical and Environmental Sciences: BES
https://www.readbyqxmd.com/read/29773090/vsita-an-improved-approach-of-target-amplification-in-the-identification-of-viral-pathogens
#19
Yi Zhang, Chen Zhang, Bo Li, Yang Li, Xiao Zhou He, Acher Li, Wei Wu, Su Xia Duan, Fang Zhou Qiu, Ji Wang, Xin Xin Shen, Meng Jie Yang, De Xin Li, Xue Jun Ma
OBJECTIVE: Unbiased next generation sequencing (NGS) is susceptible to interference from host or environmental sequences. Consequently, background depletion and virome enrichment techniques are usually needed for clinical samples where viral load is much lower than background sequences. METHODS: A viral Sequence Independent Targeted Amplification (VSITA) approach using a set of non-ribosomal and virus-enriched octamers (V8) was developed and compared with traditionally used random hexamers (N6)...
April 2018: Biomedical and Environmental Sciences: BES
https://www.readbyqxmd.com/read/29773089/fat-to-muscle-ratio-a-new-anthropometric-indicator-for-predicting-metabolic-syndrome-in-the-han-and-bouyei-populations-from-guizhou-province-china
#20
Ke Xu, Hui Juan Zhu, Shi Chen, Lu Chen, Xin Wang, Li Yuan Zhang, Li Pan, Li Wang, Kui Feng, Ke Wang, Fen Dong, Ding Ming Wang, Yang Wen Yu, Hui Pan, Guang Liang Shan
OBJECTIVE: To investigate the prevalence and possible factors influencing metabolic syndrome in people from Guizhou Province and to explore the predictive value of the fat-to-muscle ratio in diagnosing metabolic syndrome. METHODS: A multistage stratified sampling method was used in this cross-sectional study of 20-80 years old Han and Bouyei populations from Guizhou Province, southwestern China, from October-December 2012. The study included 4,553 cases of metabolic syndrome, that was defined according to 2005 International Diabetes Federation criteria...
April 2018: Biomedical and Environmental Sciences: BES
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