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https://www.readbyqxmd.com/read/28527287/-identification-of-the-mycobacterium-tuberculosis-beijing-lineage-in-ecuador
#1
Patricia Jiménez, Karina Calvopiña, Diana Herrera, Carlos Rojas, Laura Pérez-Lago, Marcelo Grijalva, Remedios Guna, Darío García-de Viedma
INTRODUCTION: Mycobacterium tuberculosis Beijing lineage isolates are considered to be especially virulent, transmissible and prone to acquire resistances. Beijing strains have been reported worldwide, but studies in Latin America are still scarce. The only multinational study performed in the region indicated a heterogeneous distribution for this lineage, which was absent in Chile, Colombia and Ecuador, although further studies found the lineage in Chile and Colombia. OBJECTIVE: To search for the presence of the Beijing lineage in Ecuador, the only country in the region where it remains unreported...
June 1, 2017: Biomédica: Revista del Instituto Nacional de Salud
https://www.readbyqxmd.com/read/28526909/retraction-note-to-the-interaction-effects-of-temperature-and-humidity-on-emergency-room-visits-for-respiratory-diseases-in-beijing-china
#2
Q Su, H Liu, X Yuan, X Zhang, W Dang, J Zhang, Y Qin, B Men, X Zhao, Y Xiao, R Sun
No abstract text is available yet for this article.
May 20, 2017: Cell Biochemistry and Biophysics
https://www.readbyqxmd.com/read/28525860/a-comparison-of-individual-exposure-perception-and-acceptable-levels-of-pm2-5-with-air-pollution-policy-objectives-in-china
#3
Lei Huang, Chao Rao, Tsering Jan van der Kuijp, Jun Bi, Yang Liu
Atmospheric pollution has emerged as a major public health issue in China. Public perception and acceptable risk levels of air pollution can prompt individual behavioral changes and play a major role in the public's response to health risks. Therefore, to explore these responses and evaluate what constitutes publicly acceptable concentrations of fine particulate matter (PM2.5), questionnaire surveys were conducted in three representative cities of China: Beijing, Nanjing, and Guangzhou. Great differences in public risk perception were revealed...
May 16, 2017: Environmental Research
https://www.readbyqxmd.com/read/28524830/using-ultrasonography-to-evaluate-the-relationship-between-capsular-invasion-or-extracapsular-extension-and-lymph-node-metastasis-in-papillary-thyroid-carcinomas
#4
Wei-Ping Jiao, Lei Zhang
BACKGROUND: Previous studies have demonstrated that ultrasonography is the recommended imaging modality for preoperative staging of papillary thyroid carcinomas (PTCs). However, only a few studies have kept watch on preoperative evaluation of capsular invasion (CI) or extracapsular extension (ECE) and cervical lymph node metastasis using preoperative ultrasonography. This study aimed to investigate the relationship between the CI or ECE and the cervical lymph node metastasis in PTCs using preoperative ultrasonography and postoperative pathology in Chinese patients...
June 5, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28524037/-clinical-analysis-of-53-patients-with-clostridium-botulinum-food-poisoning
#5
Peng Zhang, Jianguang Dong, Lili Bai, Zewu Qiu
OBJECTIVE: To analyze the epidemiologic data of patients with Clostridium botulinum food poisoning, and to improve the understanding, diagnosis and treatment of food borne botulism. METHODS: A retrospective study was conducted. Fifty-three patients with Clostridium botulinum food poisoning admitted to Chinese PLA Center of Poisoning and Treatment from January 2009 to December 2016 were enrolled, and they were divided into mild, moderate, and severe groups according to the severity of disease...
May 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28524032/-preoperative-risk-factors-analysis-of-pulmonary-hypertension-crisis-during-perioperative-period-for-caesarean-section-of-woman-with-severe-pulmonary-hypertension
#6
Chunlei Zhang, Yaguang Liu, Enming Qing, Jun Ma
OBJECTIVE: To analyze preoperative risk factors of perioperative pulmonary hypertension crisis (PHC) for pregnant woman with severe pulmonary artery hypertension (PAH), and approach its clinical value. METHODS: A retrospective analysis was conducted. The clinical data from 152 pregnant women with severe PAH underwent cesarean delivery admitted to Beijing Anzhen Hospital from January 1st 2008 to December 31st 2016 was collected. The patients were divided into two groups according to with perioperative PHC or not...
May 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28523164/a-clinical-study-of-efficacy-of-polyglycolic-acid-sleeve-after-video-assisted-thoracoscopic-bullectomy-for-primary-spontaneous-pneumothorax
#7
Duo Zhang, Jinbai Miao, Xiaoxing Hu, Bin Hu, Hui Li
BACKGROUND: Primary spontaneous pneumothorax (PSP) is a common disease in thoracic surgery, and a prolonged postoperative air leakage is the most frequent and troublesome early complication after video-assisted thoracoscopic (VATS) bullectomy. This study aimed to explore the efficacy of polyglycolic acid (PGA) sleeve in preventing postoperative air leakage after a VATS bullectomy for PSP. METHODS: This study was a prospectively randomised clinical study. The patients who underwent a VATS bullectomy were continuously enrolled from January 2015 to June 2016 in the Beijing Chaoyang Hospital and were randomly assigned to the experimental and control groups...
April 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28523162/a-preliminary-exploration-of-the-intravoxel-incoherent-motion-applied-in-the-preoperative-evaluation-of-mediastinal-lymph-node-metastasis-of-lung-cancer
#8
Xin Ye, Shuo Chen, Yaru Tian, Bin You, Wenqian Zhang, Yan Zhao, Tao Jiang, Bin Hu, Hui Li
BACKGROUND: The aim of this study was to investigate the diagnostic value of the intravoxel incoherent motion (IVIM) for distinguishing non-metastatic from metastatic mediastinal lymph nodes in lung cancer. METHODS: IVIM-diffusion weighted imaging (DWI) exams were performed preoperatively on 66 patients with lung cancer from October 2015 to June 2016 in Beijing Chao-Yang Hospital, Capital Medical University. Fifty patients underwent enhanced chest computed tomography (CT) in our hospital, while the other 16 patients already had enhanced chest CT images when they were admitted...
April 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28522873/recombinant-bcg-expressing-ltak63-adjuvant-induces-superior-protection-against-mycobacterium-tuberculosis
#9
Ivan P Nascimento, Dunia Rodriguez, Carina C Santos, Eduardo P Amaral, Henrique K Rofatto, Ana P Junqueira-Kipnis, Eduardo D C Gonçalves, Maria R D'Império-Lima, Mario H Hirata, Celio L Silva, Nathalie Winter, Brigitte Gicquel, Kingston H G Mills, Mariagrazia Pizza, Rino Rappuoli, Luciana C C Leite
In order to develop an improved BCG vaccine against tuberculosis we have taken advantage of the adjuvant properties of a non-toxic derivative of Escherichia coli heat labile enterotoxin (LT), LTAK63. We have constructed rBCG strains expressing LTAK63 at different expression levels. Mice immunized with BCG expressing low levels of LTAK63 (rBCG-LTAK63lo) showed higher Th1 cytokines and IL-17 in the lungs, and when challenged intratracheally with Mycobacterium tuberculosis displayed a 2.0-3.0 log reduction in CFU as compared to wild type BCG...
May 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28514749/a-variant-in-sirt2-gene-3-utr-is-associated-with-susceptibility-to-colorectal-cancer
#10
Yong Yang, Jie Ding, Zhi-Gang Gao, Zhen-Jun Wang
SIRT2 is a member of sirtuin family and is associated with cell growth in various cancers. In this study, we searched for variants in functional region of SIRT2 gene and identify rs2015 and rs2241703 in the 3'UTR with minor allele frequency >0.05 in Chinese Han Beijing population from 1000 Genomes Project. We then genotyped these two variants in 842 colorectal cancer (CRC) patients and 1,718 healthy controls using Taqman genotyping assay. Association between variants and risk of CRC is calculated using logistic regression adjusted for sex and age...
April 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/28512300/overview-of-influenza-vaccination-policy-in-beijing-china-current-status-and-future-prospects
#11
Yi Zhang, David J Muscatello, Quanyi Wang, Peng Yang, Jiang Wu, Chandini Raina MacIntyre
Vaccination is the best available way to prevent influenza infections and related complications. Little information is available on vaccination policy in the world's most populous country, China. In China, influenza vaccine is not included in the national immunization programme. Citizens seek the vaccine on their own. Since 2007, Beijing, ahead of most cities in China, has offered free influenza vaccine for seniors aged at least 60 years and for primary and middle school students. There has been limited evaluation of the policy...
May 16, 2017: Journal of Public Health Policy
https://www.readbyqxmd.com/read/28512052/cystic-dilation-of-the-ventriculus-terminalis-cdvt-report-of-six-surgical-cases-treated-with-cyst-subarachnoid-shunting-using-t-catheter
#12
Liang Zhang, Zhifeng Zhang, Wuyang Yang, Wenqing Jia, Yulun Xu, Jun Yang
OBJECT: Cystic dilation of the ventriculus terminalis (CDVT) is a rare anatomical variation and may become symptomatic. Existing literature regarding CDVT is limited, and as a result, the clinical characteristics and management strategy of CDVT is unclear. We report in this study six cases of CDVT in our institution, and provide a review of current literature. METHODS: We included six patients with CDVT in Beijing Tiantan Hospital between September 2010 and June 2015...
May 13, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28511349/brown-and-black-carbon-in-beijing-aerosol-implications-for-the-effects-of-brown-coating-on-light-absorption-by-black-carbon
#13
Yuan Cheng, Ke-Bin He, Guenter Engling, Rodney Weber, Jiu-Meng Liu, Zhen-Yu Du, Shu-Ping Dong
Brown carbon (BrC) is increasingly included in climate models as an emerging category of particulate organic compounds that can absorb solar radiation efficiently at specific wavelengths. Water-soluble organic carbon (WSOC) has been commonly used as a surrogate for BrC; however, it only represents a limited fraction of total organic carbon (OC) mass, which could be as low as about 20% in urban atmosphere. Using methanol as the extraction solvent, up to approximately 90% of the OC in Beijing aerosol was isolated and measured for absorption spectra over the ultraviolet-to-visible wavelength range...
May 12, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28510306/a-polymorphism-in-mir-1262-regulatory-region-confers-the-risk-of-lung-cancer-in-chinese-population
#14
Kaipeng Xie, Mengxi Chen, Meng Zhu, Cheng Wang, Na Qin, Cheng Liang, Ci Song, Juncheng Dai, Guangfu Jin, Hongbing Shen, Dongxing Lin, Hongxia Ma, Zhibin Hu
It has been proposed that the majority of disease-associated loci identified by genome-wide association studies (GWAS) are enriched in non-coding regions, such as the promoter, enhancer or non-coding RNA genes. Thus, we performed a two-stage case-control study to systematically evaluate the association of genetic variants in miRNA regulatory regions (promoter and enhancer) with lung cancer risk in 7,763 subjects (discovery stage: 2,331 cases and 3,077 controls; validation stage: 1,065 cases and 1,290 controls)...
May 16, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28509421/crispr-cas9-mediated-targeted-mutagenesis-of-gmft2a-delays-flowering-time-in-soybean
#15
Yupeng Cai, Li Chen, Xiujie Liu, Chen Guo, Shi Sun, Cunxiang Wu, Bingjun Jiang, Tianfu Han, Wensheng Hou
Flowering is an indication of the transition from vegetative growth to reproductive growth and has considerable effects on the life cycle of soybean (Glycine max). In this study, we employed the CRISPR/Cas9 system to specifically induce targeted mutagenesis of GmFT2a, an integrator in the photoperiod flowering pathway in soybean. The soybean cultivar Jack was transformed with three sgRNA/Cas9 vectors targeting different sites of endogenous GmFT2a via Agrobacterium tumefaciens-mediated transformation. Site-directed mutations were observed at all targeted sites by DNA sequencing analysis...
May 16, 2017: Plant Biotechnology Journal
https://www.readbyqxmd.com/read/28508332/occurrence-of-diazepam-and-its-metabolites-in-wastewater-and-surface-waters-in-beijing
#16
Congcong Wang, Linlin Hou, Jing Li, Zeqiong Xu, Tingting Gao, Jun Yang, Huafang Zhang, Xiqing Li, Peng Du
Occurrence of diazepam and its metabolites, nordiazepam, temazepam, and oxazepam in the water environment in Beijing was investigated. Samples were collected from four rivers flowing through the city and from all the thirteen sewage treatment plants in the urban area. Average influent concentrations of diazepman, temazepam, and oxazepam in 2013 summer ranged from 0.9 to 7.1, 1.5 to 3.4, and 2.9 to 12.4 ng L(-1), respectively, whereas nordiazepam concentrations were below quantification limit on the majority of sampling dates...
May 15, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28507339/efficacy-and-tolerability-of-chemotherapy-in-chinese-patients-with-aids-related-burkitt-lymphoma-and-diffuse-large-b-cell-lymphoma-an-observational-study
#17
Jiang Xiao, Shuxu Du, Guorui Dai, Guiju Gao, Di Yang, Hongxin Zhao
We evaluated the efficacy and tolerability of chemotherapy in HIV-infected patients with diffuse large B-cell lymphoma (DLBCL) receiving CHOP ± R (n = 17) or Burkitt lymphoma (BL) receiving CODOX-M/IVAC ± R (n = 15). The study was conducted in Beijing Ditan Hospital from January 2009 to August 2015. The following grade 4 adverse effects were observed in BL and DLBCL patients, respectively: neutropenia (80% versus 47.1%), anaemia (46.7% versus 5.9%), thrombocytopenia (53.3% versus 11.8%), bacterial pneumonia (33...
May 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28506900/chinese-materia-medica-used-in-medicinal-diets
#18
Fang Tan, Yalin Chen, Xiaolei Tan, Yunyun Ma, Yong Peng
ETHNOPHARMACOLOGICAL RELEVANCE: Medicinal diets have a history of more than 2000 years. Locally referred to as yaoshan (Chinese: ), a medicinal diet is understood in China as a dietary product that combines herbs and food with the purpose of preventing and treating diseases or improving health under the guidance of traditional Chinese medicine theory. Medicinal diets are used in Chinese people's daily life and in specialized restaurants. Hundreds of Chinese materia medica (CMM) are used in medicinal diets; however, a comprehensive evaluation of medicinal diets is lacking...
May 12, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28506287/long-term-outcomes-of-307-patients-after-complete-thymoma-resection
#19
Zu-Yang Yuan, Shu-Geng Gao, Ju-Wei Mu, Qi Xue, You-Sheng Mao, Da-Li Wang, Jun Zhao, Yu-Shun Gao, Jin-Feng Huang, Jie He
BACKGROUND: Thymoma is an uncommon tumor without a widely accepted standard care to date. We aimed to investigate the clinicopathologic variables of patients with thymoma and identify possible predictors of survival and recurrence after initial resection. METHODS: We retrospectively selected 307 patients with thymoma who underwent complete resection at the Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College (Beijing, China) between January 2003 and December 2014...
May 15, 2017: Chinese Journal of Cancer
https://www.readbyqxmd.com/read/28506215/comparison-of-antibody-responses-against-mycobacterium-tuberculosis-antigen-rv0679c-in-tuberculosis-patients-from-the-endemic-and-non-endemic-regions-of-the-beijing-genotype-a-case-control-study
#20
Jingge Zhao, Takashi Matsuba, Xiaoyan Zhang, Susan Leano, Chie Nakajima, Haorile Chagan-Yasutan, Elizabeth Freda Telan, Yasuhiko Suzuki, Toshio Hattori
BACKGROUND: Strains of the Beijing genotype of Mycobacterium tuberculosis (MTB) are reportedly associated with the virulence of tuberculosis (TB) infection, unfavorable outcomes of anti-TB treatment, and the global TB pandemic. Rv0679c, a hypothetical membrane protein related to host cell invasion, has a Beijing genotype-specific mutation at residue 142 (Asn142Lys). Antigenicity differences between Rv0679c-Asn142 (N-type) and Rv0679c-Lys142 (K-type) have been previously observed in mice antigen-antibody responses...
May 15, 2017: BMC Infectious Diseases
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