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https://www.readbyqxmd.com/read/28655219/ultra-narrow-band-perfect-absorber-and-its-application-as-plasmonic-sensor-in-the-visible-region
#1
Dong Wu, Ruifang Li, Yumin Liu, Zhongyuan Yu, Li Yu, Lei Chen, Chang Liu, Rui Ma, Han Ye
We propose and numerically investigate a perfect ultra-narrowband absorber with an absorption bandwidth of only 1.82 nm and an absorption efficiency exceeding 95% in the visible region. We demonstrate that the perfect ultra-narrowband absorption is ascribed to the coupling effect induced by localized surface plasmon resonance. The influence of structural dimensions on the optical performance is also investigated, and the optimal structure is obtained with the extremely low reflectivity (0.001) of the resonance dip...
December 2017: Nanoscale Research Letters
https://www.readbyqxmd.com/read/28655218/isolation-and-characterization-of-burkholderia-fungorum-gan-35-with-the-outstanding-ammonia-nitrogen-degrading-ability-from-the-tailings-of-rare-earth-element-mines-in-southern-jiangxi-china
#2
Ai-Juan Feng, Xi Xiao, Cong-Cong Ye, Xiao-Ming Xu, Qing Zhu, Jian-Ping Yuan, Yue-Hui Hong, Jiang-Hai Wang
The exploitation of rare-earth-element (REE) mines has resulted in severe ammonia nitrogen pollution and induced hazards to environments and human health. Screening microorganisms with the ammonia nitrogen-degrading ability provides a basis for bioremediation of ammonia nitrogen-polluted environments. In this study, a bacterium with the outstanding ammonia nitrogen-degrading capability was isolated from the tailings of REE mines in southern Jiangxi Province, China. This strain was identified as Burkholderia fungorum Gan-35 according to phenotypic and phylogenetic analyses...
December 2017: AMB Express
https://www.readbyqxmd.com/read/28655217/preventing-subclinical-necrotic-enteritis-through-lactobacillus-johnsonii-bs15-by-ameliorating-lipid-metabolism-and-intestinal-microflora-in-broiler-chickens
#3
Xiaodan Qing, Dong Zeng, Hesong Wang, Xueqin Ni, Lei Liu, Jing Lai, Abdul Khalique, Kangcheng Pan, Bo Jing
Increasing studies have focused on the beneficial effects of Lactobacillus johnsonii in certain diseases. Here, we studied the prevention ability of a probiotic strain, L. johnsonii BS15 on subclinical necrotic enteritis (SNE), and its underlying mechanism. 180 male Cobb 500 chicks were randomly allotted into three groups and administrated with BS15 (1 × 10(6) cfu/g) or Man Rogosa Sharpe liquid medium throughout a 28-day experimental period. With the exception of the normal group, SNE infection was treated for the remaining experimental period after the chicks were fed with normal diet 14 days...
December 2017: AMB Express
https://www.readbyqxmd.com/read/28655215/development-of-a-new-method-based-on-unmodified-gold-nanoparticles-and-peptide-nucleic-acids-for-detecting-bovine-viral-diarrhea-virus-rna
#4
Maryam Askaravi, Seyedeh Elham Rezatofighi, Saadat Rastegarzadeh, Masoud Reza Seifi Abad Shapouri
A simple colorimetric assay is presented for detecting bovine viral diarrhea virus (BVDV)-RNA based on aggregation of gold nanoparticles (AuNPs) in the presence of charge-neutral peptide nucleic acids (PNA). Free charge-neutral PNA oligomers tended to be adsorbed onto AuNPs and act as a coagulant, whereas hybridizing complementary RNA with PNA disrupted PNA-induced AuNP aggregation, and the NPs remained stable. However, non-complementary RNA did not have this effect, and PNA induced aggregation of the AuNPs that resulted in a color change of the reaction from red to blue...
December 2017: AMB Express
https://www.readbyqxmd.com/read/28655192/right-ventricular-dysfunction-after-surgical-left-ventricular-restoration-prevalence-risk-factors-and-clinical-implications
#5
Lotte E Couperus, Victoria Delgado, Marieke E van Vessem, Laurens F Tops, Meindert Palmen, Jerry Braun, Harriëtte F Verwey, Robert J M Klautz, Martin J Schalij, Saskia L M A Beeres
OBJECTIVES: Surgical left ventricular (LV) restoration (SVR) induces changes in LV systolic and diastolic function that may affect postoperative right ventricular (RV) function. This study aimed to evaluate the long-term effect of SVR on RV function, with specific focus on determinants and prognostic implications of RV dysfunction. METHODS: Eighty-six patients (age 60 ± 10 years, 73% male) with clinical and echocardiographic follow-up 2 years after SVR were included...
June 23, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28655185/local-knockdown-of-nav1-6-relieves-pain-behaviors-induced-by-bmk-i
#6
Shichao Qin, Feng Jiang, You Zhou, Guokun Zhou, Pin Ye, Yonghua Ji
Voltage-gated sodium channels (VGSCs) in peripheral nociceptive sensory neurons are critical to transmit pain signals. BmK I purified from the venom of scorpion Buthus martensi Karsch (BmK) has been demonstrated to be the primary contributor of envenomation-associated pain. However, the role of distinct VGSCs such as Nav1.6 in the induction and maintenance of pain behaviors induced by BmK I was ambiguous. Herein, using molecular and behavioral approaches we investigated the mRNA and protein expression profiles of Nav1...
June 24, 2017: Acta Biochimica et Biophysica Sinica
https://www.readbyqxmd.com/read/28655179/to-err-is-perfectly-human-behavioural-and-neural-correlates-of-error-processing-and-perfectionism
#7
Antonia Barke, Stefan Bode, Peter Dechent, Carsten Schmidt-Samoa, Christina Van Heer, Jutta Stahl
The attitude towards one's own imperfection strongly varies between individuals. Here, we investigated variations in error-related activity depending on two sub-traits of perfectionism, Personal Standard Perfectionism (PSP) and Evaluative Concern Perfectionism (ECP) in a large scale functional magnetic resonance imaging study (N = 75) using a digit-flanker task. Participants with higher PSP scores showed both more post-error slowing and more neural activity in the medial-frontal gyrus including anterior cingulate cortex after errors...
June 26, 2017: Social Cognitive and Affective Neuroscience
https://www.readbyqxmd.com/read/28655170/metabolic-balance-and-its-outcome-deficiency-of-vitamin-b9-and-sucrose-supply-ectopically-induces-starch-synthesis-in-etioplasts
#8
Eiji Nambara
No abstract text is available yet for this article.
June 26, 2017: Plant & Cell Physiology
https://www.readbyqxmd.com/read/28655163/microrna-21a-5p-pdcd4-axis-regulates-mesenchymal-stem-cell-induced-neuroprotection-in-acute-glaucoma
#9
Wenru Su, Zuohong Li, Yu Jia, Yingting Zhu, Wenjia Cai, Peixing Wan, Yingying Zhang, Song Guo Zheng, Yehong Zhuo
Mesenchymal stem cells (MSCs) have been demonstrated to have promising therapeutic benefits for a variety of neurological diseases; however, the underlying mechanisms are poorly understood. Here, we showed that intravitreal infusion of MSCs promoted retinal ganglion cell (RGC) survival in a mouse model of acute glaucoma, with significant inhibition of microglial activation, production of TNF-α, IL-1β, and reactive oxygen species, as well as caspase-8 and caspase-3 activation. In vitro, MSCs inhibited both caspase-8-mediated RGC apoptosis and microglial activation, partly via the action of stanniocalcin 1 (STC1)...
June 26, 2017: Journal of Molecular Cell Biology
https://www.readbyqxmd.com/read/28655161/dysfunction-of-pla2g6-and-cyp2c44-associated-network-signals-imminent-carcinogenesis-from-chronic-inflammation-to-hepatocellular-carcinoma
#10
Meiyi Li, Chen Li, Wei-Xin Liu, Conghui Liu, Jingru Cui, Qingrun Li, Hong Ni, Yingcheng Yang, Chaochao Wu, Chunlei Chen, Xing Zhen, Tao Zeng, Mujun Zhao, Lei Chen, Jiarui Wu, Rong Zeng, Luonan Chen
Little is known about how chronic inflammation contributes to the progression of hepatocellular carcinoma (HCC), especially the initiation of cancer. To uncover the critical transition from chronic inflammation to HCC and the molecular mechanisms at a network level, we analyzed the time-series proteomic data of woodchuck hepatitis virus/c-myc mice and age-matched wt-C57BL/6 mice using our dynamical network biomarker (DNB) model. DNB analysis indicated that the 5th month after birth of transgenic mice was the critical period of cancer initiation, just before the critical transition, which is consistent with clinical symptoms...
June 26, 2017: Journal of Molecular Cell Biology
https://www.readbyqxmd.com/read/28655099/-mononuclear-cells-of-umbilical-cord-blood-differentiation-to-granulocyte-cell-in-vitro
#11
L Chen, X Y Xie, J Q Nie, D L Chen, A P Huang, F Fang, M Y Qu, X Nan, L J He, Z Fan, W Yue, X T Pei
Objective: To explore an optimal method for granulocyte cell production from umbilical cord blood mononuclear cells. Methods: Erythrocytes were precipitated by hydroxyethyl starch. Mononuclear cells were isolated through Ficoll density gradient centrifugation. Different media, additives and cultivation model were chosen for granulocyte induction. Cell morphology was observed by microscopy, and cell phenotype was detected by flow cytometry. The CD18 expression of granulocytes was tested by immunofluorescence assay, and phagocytosis test was executed as well...
June 14, 2017: Zhonghua Xue Ye Xue za Zhi, Zhonghua Xueyexue Zazhi
https://www.readbyqxmd.com/read/28655097/-efficacy-of-combination-of-atra-ato-and-anthracyclines-induction-therapy-in-patients-with-acute-promyelocytic-leukemia
#12
R J Ma, Z M Zhu, X L Yuan, L Jiang, S W Yang, J Yang, J M Guo, L Zhang, P C Lei, Z Wang, Y Z Zang, Y Q Chen, T B Wang, D Kong, K Sun, Y Zhang
Objective: To explore the efficacies of regimens of three-drug induction therapy (ATRA+ATO+anthracyclines) versus two-drug induction therapy (ATRA+ATO) in patients with acute promyelocytic leukemia (APL). Methods: Of 184 patients diagnosed with APL from January 2009 to March 2016, 58 patients underwent three-drug induction therapy, while the rest were treated with two-drug induction therapy. Three-drug induction therapy was of ATRA (20 mg·m(-2)·d(-1), d(1-28)) + ATO (0.16 mg·kg(-1)·d(-1), d(1-28)) + Idarubicin (8 mg·m(-2)·d(-1), d(3-5)) /daunorubicin (40 mg·m(-2)·d(-1), d(3-5)) , while two-drug induction therapy ATRA+ATO with the same doses and methods as above...
June 14, 2017: Zhonghua Xue Ye Xue za Zhi, Zhonghua Xueyexue Zazhi
https://www.readbyqxmd.com/read/28655090/-molecular-mechanisms-and-relationship-of-m2-polarized-macrophages-with-early-response-in-multiple-myeloma
#13
X Y Chen, R X Sun, W Y Zhang, T Liu, Y H Zheng, Y Wu
Objective: To investigate the relationship between M2-polarized macrophages and early response in multiple myeloma and its molecular mechanism. Methods: Two hundred and forty bone marrow biopsy tissue were collected and M2-polarized macrophages were stained by anti-CD163 monoclonal antibody. In vitro M2-polarized macrophages were derived from human peripheral blood mononuclear cell or THP-1 cells and identified by flow cytometry. Two myeloma cell lines RPMI 8226 and U266 were co-cultured with M2 macrophages using a transwell system...
June 14, 2017: Zhonghua Xue Ye Xue za Zhi, Zhonghua Xueyexue Zazhi
https://www.readbyqxmd.com/read/28655079/-pathological-insights-of-radiotherapy-related-damage-to-surgical-margin-after-preoperative-radiotherapy-in-patients-with-rectal-cancer
#14
Q H Zhong, P H Wu, Q Y Qin, Y Y Kuang, T H Ma, H M Wang, Y X Zhu, D C Chen, J P Wang, L Wang
Objective: To investigate the effect of irradiation to anastomosis from preoperative radiotherapy for patients with rectal cancer by studying the pathological changes. Methods: In this retrospective study, patients enrolled in the FOWARC study from January 2011 to July 2014 in the Sixth Affiliated Hospital of Sun Yat-Sen University were included. In the FOWARC study, enrolled patients with local advanced rectal cancer were randomly assigned to receive either neoadjuvant chemo-radiotherapy or chemotherapy. Among these patients, 23 patients were selected as radiation proctitis (RP)group, who fulfilled these conditions: (1) received neoadjuvant chemo-radiotherapy followed by sphincter-preserving surgery; (2) developed radiation proctitis as confirmed by preoperative imaging diagnosis; (3) had intact clinical samples of surgical margins...
July 1, 2017: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
https://www.readbyqxmd.com/read/28655072/oral-administration-of-glycine-and-leucine-dipeptides-improves-skin-hydration-and-elasticity-in-uvb-irradiated-hairless-mice
#15
Jong Il Park, Ji Eun Lee, Hyun Jun Shin, Soonran Song, Won Kyung Lee, Jae Sung Hwang
Placenta is a special organ that contains many nutrients such as growth factors, minerals, and bioactive peptides. Dipeptides of glycine and leucine are major components of porcine placenta extracts (PPE) that has been used as an alternative of human placenta extracts. In this study, we investigated whether major peptides of PPE, Glycyl-L-Leucine (Gly-Leu), L-Leucyl-Glycine (Leu-Gly), and L-Leucyl-L-Leucine (Leu-Leu), affect skin hydration and elasticity in vitro and in vivo. We found that Gly-Leu and Leu-Gly dipeptides induced the expression of transglutaminase 1 in normal human epidermal keratinocytes (NHEKs) whereas Leu-Leu dipeptides did not...
June 27, 2017: Biomolecules & Therapeutics
https://www.readbyqxmd.com/read/28655071/melatonin-rescues-mesenchymal-stem-cells-from-senescence-induced-by-the-uremic-toxin-p-cresol-via-inhibiting-mtor-dependent-autophagy
#16
Seung Pil Yun, Yong-Seok Han, Jun Hee Lee, Sang Min Kim, Sang Hun Lee
p-Cresol, found at high concentrations in the serum of chronic kidney failure patients, is known to cause cell senescence and other complications in different parts of the body. p-Cresol is thought to mediate cytotoxic effects through the induction of autophagy response. However, toxic effects of p-cresol on mesenchymal stem cells have not been elucidated. Thus, we aimed to investigate whether p-cresol induces senescence of mesenchymal stem cells, and whether melatonin can ameliorate abnormal autophagy response caused by p-cresol...
June 27, 2017: Biomolecules & Therapeutics
https://www.readbyqxmd.com/read/28655070/inhibitory-effect-of-carnosol-on-phthalic-anhydride-induced-atopic-dermatitis-via-inhibition-of-stat3
#17
Do Yeon Lee, Chul Ju Hwang, Ji Yeon Choi, Mi Hee Park, Min Ji Song, Ki Wan Oh, Dong Ju Son, Seung Hwa Lee, Sang Bae Han, Jin Tae Hong
Carnosol is a phenolic antioxidant present in rosemary (Rosmarinus officinalis). It is known for anti-inflammatory effects, analgesic activity and anti-cancer effects. However, no study has been dedicated yet to its effect on atopic dermatitis (AD). Here, we show that carnosol effectively inhibited LPS-induced nitric oxide (NO) generation and expression of inflammatory marker proteins (iNOS and COX-2) in RAW 264.7 cells. In addition, carnosol effectively inhibits the phosphorylation of STAT3 and DNA binding activity in RAW 264...
June 27, 2017: Biomolecules & Therapeutics
https://www.readbyqxmd.com/read/28655069/delivery-of-parasite-cdg7_flc_0990-rna-transcript-into-intestinal-epithelial-cells-during-cryptosporidium-parvum-infection-suppresses-host-cell-gene-transcription-through-epigenetic-mechanisms
#18
Yang Wang, Ai-Yu Gong, Shibin Ma, Xiqiang Chen, Juliane K Strauss-Soukup, Xian-Ming Chen
Cryptosporidial infection causes dysregulated transcription of host genes key to intestinal epithelial homeostasis, but the underlying mechanisms remain obscure. Previous studies demonstrate that several C. parvum RNA transcripts are selectively delivered into epithelial cells during host cell invasion and may modulate gene transcription in infected cells. We report here that C. parvum infection suppresses the transcription of LRP5, SLC7A8, and IL33 genes in infected intestinal epithelium. Trans-suppression of these genes in infected host cells is associated with promoter enrichment of suppressive epigenetic markers (i...
June 27, 2017: Cellular Microbiology
https://www.readbyqxmd.com/read/28655062/an-objective-drug-induced-sedation-endoscopy-data-capture-and-analysis-system
#19
Esuabom Dijemeni, Gabriele D'Amone, Israel Gbati
No abstract text is available yet for this article.
June 22, 2017: JAMA Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/28655038/kinematic-analysis-of-speech-sound-sequencing-errors-induced-by-delayed-auditory-feedback
#20
Gabriel J Cler, Jackson C Lee, Talia Mittelman, Cara E Stepp, Jason W Bohland
Purpose: Delayed auditory feedback (DAF) causes speakers to become disfluent and make phonological errors. Methods for assessing the kinematics of speech errors are lacking, with most DAF studies relying on auditory perceptual analyses, which may be problematic, as errors judged to be categorical may actually represent blends of sounds or articulatory errors. Method: Eight typical speakers produced nonsense syllable sequences under normal and DAF (200 ms). Lip and tongue kinematics were captured with electromagnetic articulography...
June 22, 2017: Journal of Speech, Language, and Hearing Research: JSLHR
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