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https://www.readbyqxmd.com/read/28637186/cpg-and-methylation-dependent-dna-binding-and-dynamics-of-the-methylcytosine-binding-domain-2-protein-at-the-single-molecule-level
#1
Hai Pan, Stephanie M Bilinovich, Parminder Kaur, Robert Riehn, Hong Wang, David C Williams
The methylcytosine-binding domain 2 (MBD2) protein recruits the nucleosome remodeling and deacetylase complex (NuRD) to methylated DNA to modify chromatin and regulate transcription. Importantly, MBD2 functions within CpG islands that contain 100s to 1000s of potential binding sites. Since NuRD physically rearranges nucleosomes, the dynamic mobility of this complex is directly related to function. In these studies, we use NMR and single-molecule atomic force microscopy and fluorescence imaging to study DNA binding dynamics of MBD2...
June 20, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28637122/a-new-cinnamic-acid-glycoside-from-roots-of-heracleum-dissectum
#2
Zhi-Gang Wang, Jie Mi, Xin-Rui Wang, Ya-Yu Huo, Ya-Jie Peng, Hai-Min Zhang, Yang Gao, Hai-Long Zhang
From the roots of Heracleum dissectum Lebb., one new cinnamic acid glycoside derivative named dissectumoside (1), together with eight known compounds including three phenolics, three phenolic glycosides and two phenylpropanoic glycoside were isolated using various chromatographic methods. Among them compound 2-9 was isolated from the plant for the first time. Their structures were elucidated and identified on the basis of their physicochemical properties and by extensive analyses of NMR spectroscopy and high-resolution mass spectrometry...
June 15, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28636854/cluster-randomized-crossover-trial-of-head-positioning-in-acute-stroke
#3
Craig S Anderson, Hisatomi Arima, Pablo Lavados, Laurent Billot, Maree L Hackett, Verónica V Olavarría, Paula Muñoz Venturelli, Alejandro Brunser, Bin Peng, Liying Cui, Lily Song, Kris Rogers, Sandy Middleton, Joyce Y Lim, Denise Forshaw, C Elizabeth Lightbody, Mark Woodward, Octavio Pontes-Neto, H Asita De Silva, Ruey-Tay Lin, Tsong-Hai Lee, Jeyaraj D Pandian, Gillian E Mead, Thompson Robinson, Caroline Watkins
Background The role of supine positioning after acute stroke in improving cerebral blood flow and the countervailing risk of aspiration pneumonia have led to variation in head positioning in clinical practice. We wanted to determine whether outcomes in patients with acute ischemic stroke could be improved by positioning the patient to be lying flat (i.e., fully supine with the back horizontal and the face upwards) during treatment to increase cerebral perfusion. Methods In a pragmatic, cluster-randomized, crossover trial conducted in nine countries, we assigned 11,093 patients with acute stroke (85% of the strokes were ischemic) to receive care in either a lying-flat position or a sitting-up position with the head elevated to at least 30 degrees, according to the randomization assignment of the hospital to which they were admitted; the designated position was initiated soon after hospital admission and was maintained for 24 hours...
June 22, 2017: New England Journal of Medicine
https://www.readbyqxmd.com/read/28636535/the-correlation-of-neutrophil-to-lymphocyte-ratio-with-the-presence-and-activity-of-myasthenia-gravis
#4
De-Hao Yang, Mei-Zi Qian, Mao-Mao Wei, Jia Li, Meng-Meng Yu, Xue-Mian Lu, Hong Yang, Hai Lin, Xiang Li, Jun-Yan Zhu, Xu Zhang
Though the pathogenesis of myasthenia gravis (MG) is not fully understood, the role of inflammation has been well appreciated in the development of MG. We aimed to investigate the role of neutrophil-to-lymphocyte ratio (NLR) in MG patients and the relationship between the NLR and the activity of the disease. A total number of 172 MG patients and 207 healthy controls (HC) were enrolled in this study. The MG patients were divided into tertiles according to NLR (low NLR < 1.58, n = 57; intermediate NLR 1.58-2...
June 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28636483/lumping-kinetics-of-abe-fermentation-wastewater-treatment-by-oleaginous-yeast-trichosporon-cutaneum
#5
Can Wang, Chao Huang, Xue-Fang Chen, Hai-Rong Zhang, Lian Xiong, Xiao-Mei Li, Hai-Jun Guo, Gao-Xiang Qi, Xiao-Qing Lin, Xin-De Chen
Lumping kinetics models were built for the biological treatment of ABE (acetone-butanol-ethanol) fermentation wastewater by oleaginous yeast Trichosporon cutaneum with different fermentation temperatures. Compared with high temperature (33°C, 306 K) and low temperature (23°C, 296 K), medium temperature (28°C, 301 K) was beneficial for the cell growth and COD degradation during the early stage of fermentation but the final yeast biomass and COD removal were influenced little. By lumping method, the materials in the bioconversion network were divided into five lumps (COD, lipid, polysaccharide, other intracellular products, other extracellular products), and the nine rate constants (k1-k9) for the models can well explain the bioconversion laws...
June 21, 2017: Preparative Biochemistry & Biotechnology
https://www.readbyqxmd.com/read/28636427/liver-directed-therapy-in-metastatic-colorectal-cancer
#6
Ciara M Kelly, Nancy E Kemeny
Colorectal cancer is a significant global health issue with over 1 million cases diagnosed annually throughout the world. 15% of patients diagnosed with colorectal cancer will have liver metastases and 60% will develop liver metastases if they have metastatic disease. Oligometastatic colorectal cancer confined to the liver represents an intermediate state in the evolution of metastatic capacity that opens the opportunity for local interventions. Area's covered: The literature supports long-term survival if patients undergo liver resection of colorectal metastases...
June 21, 2017: Expert Review of Anticancer Therapy
https://www.readbyqxmd.com/read/28636357/correction-to-%C3%AE-glucosidase-inhibitory-and-cytotoxic-taxane-diterpenoids-from-the-stem-bark-of-taxus-wallichiana
#7
Phu Hoang Dang, Hai Xuan Nguyen, Truc Thanh Thi Duong, Thao Kim Thi Tran, Phuc Thi Nguyen, Trang Kieu Thi Vu, Hung Chi Vuong, Nguyen Huu Trong Phan, Mai Thanh Thi Nguyen, Nhan Trung Nguyen, Suresh Awale
No abstract text is available yet for this article.
June 21, 2017: Journal of Natural Products
https://www.readbyqxmd.com/read/28635650/the-application-of-heptamethine-cyanine-dye-dz-1-and-indocyanine-green-for-imaging-and-targeting-in-xenograft-models-of-hepatocellular-carcinoma
#8
Caiqin Zhang, Yong Zhao, He Zhang, Xue Chen, Ningning Zhao, Dengxu Tan, Hai Zhang, Changhong Shi
Near infrared fluorescence (NIRF) imaging has strong potential for widespread use in noninvasive tumor imaging. Indocyanine green (ICG) is the only Food and Drug Administration (FDA) -approved NIRF dye for clinical diagnosis; however, it is unstable and poorly targets tumors. DZ-1 is a novel heptamethine cyanine NIRF dye, suitable for imaging and tumor targeting. Here, we compared the fluorescence intensity and metabolism of DZ-1 and ICG. Additionally, we assayed their specificities and abilities to target tumor cells, using cultured hepatocellular carcinoma (HCC) cell lines, a nude mouse subcutaneous xenograft model of liver cancer, and a rabbit orthotopic transplantation model...
June 21, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28635400/the-long-noncoding-rna-foxcut-promotes-proliferation-and-migration-by-targeting-foxc1-in-nasopharyngeal-carcinoma
#9
Yu-Zhong Xu, Fang-Fang Chen, Yu Zhang, Qin-Fei Zhao, Xiao-Long Guan, Hai-Yong Wang, Ang Li, Xin Lv, Shu-Sheng Song, Ying Zhou, Xiao-Jun Li
Long noncoding RNAs play an important role in various biological processes, including tumorigenesis. FOXC1 (Forkhead box C1) is a member of the Forkhead box family of transcription factors and plays a crucial role in nasopharyngeal carcinoma. In this study, a novel long noncoding RNA (FOXCUT) located upstream of FOXC1 was investigated in 42 nasopharyngeal carcinoma patients. Our analysis revealed that the expression levels of FOXCUT and FOXC1 in nasopharyngeal carcinoma tissues were significantly higher than those observed in chronic nasopharyngitis tissues and that FOXCUT expression was positively correlated with FOXC1 expression...
June 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28635303/increased-pulse-wave-velocity-in-systemic-lupus-erythematosus-a-meta-analysis
#10
Peng Wang, Yan-Mei Mao, Chan-Na Zhao, Li-Na Liu, Xiao-Mei Li, Xiang-Pei Li, Hai-Feng Pan
Systemic lupus erythematosus (SLE) is associated with increased cardiovascular risk. This study aims to derive a more precise estimation on pulse wave velocity (PWV) level in patients with SLE and related factors. A literature search was performed using PubMed, EMBASE, and The Cochrane Library databases, studies published up to February 28, 2017, in English. Pooled standardized mean difference (SMD) with 95% confidence interval (CI) was calculated by fixed-effect or random-effect model analysis. Heterogeneity test was performed by the Q statistic and quantified using I(2); publication bias was evaluated using a funnel plot and Egger's linear regression test...
January 1, 2017: Angiology
https://www.readbyqxmd.com/read/28634417/expression-status-of-piwil1-as-a-prognostic-marker-of-colorectal-cancer
#11
Rui Sun, Chun-Li Gao, Dong-Hai Li, Bo-Jun Li, Yan-Hong Ding
The PIWI-like protein 1 (PIWIL1) plays a crucial role in stem cell proliferation, embryogenesis, growth, and development, as well as differentiation and maturation in multiple organisms. The relationships between PIWIL1 expression and clinicopathological features of colorectal cancer (CRC) patients were analyzed by us. Survival analysis was performed using the Kaplan-Meier method and Cox's proportional hazards model. The high expression rate of PIWIL1 in the cancer tissue was obviously higher than that in the corresponding adjacent tissue...
2017: Disease Markers
https://www.readbyqxmd.com/read/28633527/molecular-beam-epitaxy-of-highly-crystalline-monolayer-molybdenum-disulfide-on-hexagonal-boron-nitride
#12
Deyi Fu, Xiaoxu Zhao, Yu-Yang Zhang, Linjun Li, Hai Xu, A-Rang Jang, Seong In Yoon, Peng Song, Sock Mui Poh, Tianhua Ren, Zijing Ding, Wei Fu, Tae Joo Shin, Hyeon Suk Shin, Sokrates T Pantelides, Wu Zhou, Kian Ping Loh
Atomically thin molybdenum disulfide (MoS2), a direct-band-gap semiconductor, is promising for applications in electronics and optoelectronics but the scalable synthesis of highly-crystalline film remains challenging. Here we report the successful epitaxial growth of a continuous, uniform, highly-crystalline monolayer MoS2 film on hexagonal boron nitride (h-BN) by molecular beam epitaxy. Atomic force microscopy and electron microscopy studies reveal that MoS2 grown on h-BN primarily consists of two types of nucleation grains (0o aligned and 60o anti-aligned domains)...
June 21, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28633506/role-of-glucagon-like-peptide-1and-gastric-inhibitory-peptide-in-anorexia-induction-following-oral-exposure-to-the-trichothecene-mycotoxin-deoxynivalenol-vomitoxin
#13
Hui Jia, Wen-Da Wu, Xi Lu, Jie Zhang, Cheng-Hua He, Hai-Bin Zhang
Deoxynivalenol (DON), which is a Type B trichothecene mycotoxin produced by Fusarium, frequently contaminates cereal staples, such as wheat, barley and corn. DON threatens animal and human health by suppressing food intake and impairing growth. While anorexia induction in mice exposed to DON has been linked to the elevation of the satiety hormones cholecystokinin (CCK) and peptide YY3-36(PYY3-36) in plasma, the effects of DON on the release of other satiety hormones, such as glucagon-like peptide-1 (GLP-1) and gastric inhibitory peptide (GIP), have not been established...
June 19, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/28632831/-antiseptics-and-disinfectants-aiming-at-rational-use-recommendations-of-the-advisory-committee-on-healthcare-associated-infections-sociedad-chilena-de-infectolog%C3%A3-a
#14
Alexis Diomedi, Eiiana Chacón, Luis Delpiano, Beatrice Hervé, M Irene Jemenao, Myriam Medel, Marcela Quintanilla, Gisela Riedel, Javier Tinoco, Marcela Cifuentes
Proper use of antiseptics and disinfectants, is an essential tool to prevent the spread of infectious agents and to control of healthcare-associated infections (HAI). Given the increasing importance of environmental aspects, as well as several advances and updates in the field of its proper use at local and intemational level, the SOCHINF HAI Advisory Committee considers that it is necessary to develop a guide for the rational use of antiseptics and disinfectants, which it will provide consistent scientific basis with that purpose...
April 2017: Revista Chilena de Infectología: órgano Oficial de la Sociedad Chilena de Infectología
https://www.readbyqxmd.com/read/28632646/the-utility-of-adding-magnetic-resonance-imaging-to-computed-tomography-alone-in-the-evaluation-of-cervical-spine-injury-a-propensity-matched-analysis
#15
Andrew J Schoenfeld, Daniel G Tobert, Hai V Le, Dana A Leonard, Allan L Yau, Prashant Rajan, Charles H Cho, James D Kang, Christopher M Bono, Mitchel B Harris
STUDY DESIGN: Adult patients who received CT alone or CT-MRI for the evaluation of cervical OBJECTIVE.: To evaluate the utility of CT-MRI in the diagnosis of cervical spine injury using propensity matched techniques. SUMMARY OF BACKGROUND DATA: The optimal evaluation (computed tomography [CT] alone vs CT and magnetic resonance imaging [MRI]) for patients with suspected cervical spine injury in the setting of blunt trauma remains controversial. METHODS: The primary outcome was the identification of a cervical spine injury, with decision for surgery and change in management considered secondarily...
June 19, 2017: Spine
https://www.readbyqxmd.com/read/28632546/clinical-outcome-and-postoperative-ct-measurements-of-microendoscopic-decompression-for-lumbar-spinal-stenosis
#16
Xu Zhou, Lei Zhang, Hai-Long Zhang, Shi-Sheng He, Xin Gu, Guang-Fei Gu, Qing-Song Fu
STUDY DESIGN: This was a retrospective case series. OBJECTIVE: To retrospectively evaluate the clinical outcome of microendoscopic decompression for lumbar spinal stenosis (LSS) including an evaluation of the extent of decompression using computed tomography. SUMMARY OF BACKGROUND DATA: Microendoscopic decompression has been a widely applied procedure to treat LSS with satisfactory outcomes and comparatively fewer complications and revision...
July 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28632339/polymorphisms-of-human-leukocyte-antigen-b-27-on-clinical-phenotype-of-spondyloarthritis-in-chinese
#17
Hai-Jun Ma, Qing-Feng Yin, Yun Liu, Yin Wu, Tie-Chui Zhu, Ming-Hao Guo
BACKGROUND: In recent years, an ever-increasing number of alleles of human leukocyte antigen B*27 (HLA-B*27) have been identified. This study aimed to establish an updated method for HLA-B*27 subtyping, and to investigate the impact of HLA-B*27 polymorphisms on the clinical phenotype of spondyloarthritis (SpA). METHODS: Overall, 184 SpA patients were recruited for analyzing diversity of HLA-B*27 via an updated high-resolution polymerase chain reaction amplification with sequence specific primers (PCR-SSP)...
June 20, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28632317/qm-mm-study-on-the-photoreactions-of-dark-and-light-adapted-states-of-a-blue-light-ytva-lov-photoreceptor
#18
Xue-Ping Chang, Yuan-Jun Gao, Wei-Hai Fang, Ganglong Cui, Walter Thiel
The dark- and light-adapted states of YtvA LOV domains exhibit distinct excited-state behavior. We have employed high-level QM(MS-CASPT2)/MM calculations to study the photochemical reactions of the dark- and light-adapted states. The photoreaction from the dark-adapted state starts with an S1→T1 intersystem crossing followed by a triplet-state hydrogen transfer from the thiol to the flavin moiety that produces a diradical intermediate, and a subsequent internal conversion that triggers a barrierless C-S bond formation in the S0 state...
June 20, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28631963/tumor-penetrating-peptide-integrated-thermally-sensitive-liposomal-doxorubicin-enhances-efficacy-of-radiofrequency-ablation-in-liver-tumors
#19
Fei Yan, Song Wang, Wei Yang, S Nahum Goldberg, Hao Wu, Wan-Lu Duan, Zhi-Ting Deng, Hai-Bo Han, Hai-Rong Zheng
Purpose To investigate the role of a tumor-penetrating peptide (internalizing CRGDRGPDC [iRGD])-integrated thermally sensitive liposomal (TSL) doxorubicin (DOX) in combination with radiofrequency (RF) ablation of liver tumors in an animal model. Materials and Methods Approval from the institutional animal care and use committee was obtained. Characterization of iRGD-TSL-DOX was performed in vitro. Next, H22 liver adenocarcinomas were implanted in 138 mice in vivo. The DOX accumulation and cell apoptosis of iRGD-TSL-DOX and TSL-DOX with or without RF were evaluated (n = 5) at different time points after treatment with quantitative analysis or pathologic staining...
June 19, 2017: Radiology
https://www.readbyqxmd.com/read/28631598/in-vitro-and-in-vivo-evidence-of-a-potential-a-h1n1-pdm09-antigenic-drift-mediated-by-escape-mutations-in-the-haemagglutinin-sa-antigenic-site
#20
Miguel Retamal, Yacine Abed, Chantal Rhéaume, Mariana Baz, Guy Boivin
Influenza A(H1N1)pdm09 virus continues to circulate worldwide without evidence of significant antigenic drift between 2009 and 2016. By using escape mutants, we previously identified six haemagglutinin (HA) changes (T80R, G143E, G158E, N159D, K166E and A198E) that were located within antigenic sites. Combinations of these mutations were introduced into the A(H1N1)pdm09 HA plasmid by mutagenesis. Reassortant 6 : 2 viruses containing both the HA and NA genes of the A(H1N1)pdm09 and the six internal gene segments of A/PR/8/34 were rescued by reverse genetics...
June 20, 2017: Journal of General Virology
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