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https://www.readbyqxmd.com/read/28550730/transplantation-of-aire-overexpressing-bone-marrow-derived-dendritic-cells-delays-the-onset-of-type-1-diabetes
#1
Dongbei Li, Bo Zhao, Yadong Luo, Steven Limbara, Bingjie Zhao, Xueyang Zou, Wei Yang, Yi Li
Autoimmune regulator (Aire) plays an indispensable role in maintaining central immune tolerance by promoting the ectopic expression of tissue-restricted antigens (TRAs) in medullary thymic epithelial cells (mTECs) and dendritic cells (DCs), which lead to the deletion of autoreactive T cells or the induction of Tregs and consequently prevent autoimmune disease development. Curing autoimmune diseases has always been a challenge. DC-based immunotherapy represents a new and effective method to establish tolerance...
May 24, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28549917/dendritic-cell-derived-exosomes-elicit-tumor-regression-in-autochthonous-hepatocellular-carcinoma-mouse-models
#2
Zhen Lu, Bingfeng Zuo, Renwei Jing, Xianjun Gao, Quan Rao, Zhili Liu, Han Qi, Hongxing Guo, HaiFang Yin
BACKGROUND & AIMS: Dendritic cell (DC)-derived exosomes (DEXs) form a new class of vaccines for cancer immunotherapy. However their potency in hepatocellular carcinoma (HCC), a life-threatening malignancy with limited treatment options in the clinic and responds poorly to immunotherapy, remains to be investigated. METHODS: Exosomes derived from α-fetoprotein (AFP) - expressing DCs (DEXAFP) were investigated in three different HCC mouse models systemically and tumor growth and microenvironment were monitored...
May 23, 2017: Journal of Hepatology
https://www.readbyqxmd.com/read/28549859/ethnopharmacological-investigations-of-the-cardio-renal-properties-of-a-native-species-from-the-region-of-pantanal-state-of-mato-grosso-do-sul-brazil
#3
Cleide Adriane Signor Tirloni, Francislaine Aparecida Dos Reis Lívero, Rhanany Alan Calloi Palozi, Renan César Alves Silveira, Paulo César de Paula Vasconcelos, Roosevelt Isaias Carvalho Souza, Ariany Carvalho Dos Santos, Valter Paes de Almeida, Jane Manfron Budel, Lauro Mera de Souza, Arquimedes Gasparotto Junior
ETHNOPHARMACOLOGICAL RELEVANCE: Acanthospermum hispidum DC. is an important medicinal herb that belongs to family Asteraceae, popularly used as a diuretic and hypotensive in the region of Pantanal, state of Mato Grosso do Sul, Brazil. Despite the relevance of this species throughout the country, there are no detailed studies about its possible ethnobotanical indication. AIM: To carry out a detailed ethnopharmacological investigation of the cardio-renal properties of A...
May 23, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28549552/haplotype-diversity-of-17-y-chromosome-str-loci-in-han-population-from-different-areas-of-sichuan-province-southwest-china
#4
Guangyao Fan, Wei Li, Yi Ye, Xuebo Li, Wendong Ge, Yongqiang Yang, Bing Long
The distribution of 17 Y-chromosome short tandem repeat (STR) loci, included in the AmpFlSTR®Yfiler™ amplification kit, were analyzed in six different samplings (N=878) from Sichuan, China. Haplotype diversity and discrimination capacity (DC) values were calculated. Pairwise Rst values were evaluated in AMOVA analysis and visualized through multidimensional scaling (MDS). A total of 547 unique haplotypes were detected. The observed haplotype diversity and discrimination capacity were 0.9995 and 0.7745, respectively...
May 2017: Legal Medicine
https://www.readbyqxmd.com/read/28549044/a-modified-suction-assisted-technique-of-transfer-of-diced-cartilage-graft-to-carrier-material-and-outcome-of-direct-injection-of-unwrapped-diced-cartilage-in-rhinoplasty
#5
Muhammad Mustehsan Bashir, Muhammad Sohail, Farid Ahmad Khan, Sadia Nosheen Jan, Hamid Hussain Ansari, Umer Nazir, Zohaib Hidayat
OBJECTIVE: To describe a modified suction-assisted technique (MSAT) of transfer of diced cartilage (DC) graft to a carrier material and to determine the clinical outcome of direct injection of unwrapped diced cartilage (UDC) in rhinoplasty. PLACE AND DURATION OF STUDY: Department of Plastic Surgery, KEMU, Mayo Hospital, Lahore from February 2011 to January 2015 METHODS:: Forty-seven patients of both genders with types 0 to 3 saddle nose deformity were included. Patients with types 4 and 5 saddle nose deformity, diabetes, hypertension, hepatic or renal disorders were excluded...
May 25, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28548823/atmosphere-and-voltage-dependent-electronic-conductivity-of-oxide-ion-conducting-zr1-xyxo2-x-2-ceramics
#6
Marc Jovaní, Héctor Beltrán-Mir, Eloisa Cordoncillo, Anthony R West
Cubic, fluorite-structured solid solutions Zr1-xYxO2-x/2 (YSZ; x = 0.4-0.7) were prepared by sol-gel synthesis. Impedance measurements on pellets of 85% approximate density sintered at 1300 °C for 24 h showed strong evidence of oxide ion conduction with an inclined Warburg spike at low frequencies and capacitance values of ∼10(-6) F cm(-1) at 40 Hz. Arrhenius plots of total pellet conductivities were linear with activation energies of 1.4-1.56 eV. The conductivity decreased with x and was 2-4 orders of magnitude lower than that with optimized YSZ, x = 0...
May 26, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28547725/dual-polarity-ion-trap-mass-spectrometry-dynamic-monitoring-and-controlling-gas-phase-ion-ion-reactions
#7
Muyi He, You Jiang, Dan Guo, Xingchuang Xiong, Xiang Fang, Wei Xu
A dual-polarity linear ion trap (LIT) mass spectrometer was developed in this study, and the method for simultaneously controlling and detecting cations and anions was proposed and realized in the LIT. With the application of an additional dipolar DC field on the ejection electrodes of an LIT, dual-polarity mass spectra could be obtained, which include both the mass-to-charge (m/z) ratio and charge polarity information of an ion. Compared with conventional method, the ion ejection and detection efficiency could also be improved by about one-fold...
May 25, 2017: Journal of the American Society for Mass Spectrometry
https://www.readbyqxmd.com/read/28547651/photoplethysmography-for-blood-volumes-and-oxygenation-changes-during-intermittent-vascular-occlusions
#8
T Y Abay, P A Kyriacou
Photoplethysmography (PPG) is an optical technique that measures blood volume variations. The main application of dual-wavelength PPG is pulse oximetry, in which the arterial oxygen saturation (SpO[Formula: see text]) is calculated noninvasively. However, the PPG waveform contains other significant physiological information that can be used in conjunction to SpO[Formula: see text] for the assessment of oxygenation and blood volumes changes. This paper investigates the use of near infrared spectroscopy (NIRS) processing techniques for extracting relative concentration changes of oxygenated ([Formula: see text]HbO[Formula: see text]), reduced ([Formula: see text]HHb) and total haemoglobin ([Formula: see text]tHb) from dual-wavelength PPG signals during intermittent pressure-increasing vascular occlusions...
May 25, 2017: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28547587/new-quantitative-radiographic-parameters-for-vertical-and-horizontal-instability-in-acromioclavicular-joint-dislocations
#9
Matthias A Zumstein, Philippe Schiessl, Benedikt Ambuehl, Lilianna Bolliger, Johannes Weihs, Martin H Maurer, Beat K Moor, Michael Schaer, Sumit Raniga
PURPOSE: The aim of this study was to identify the most accurate and reliable quantitative radiographic parameters for assessing vertical and horizontal instability in different Rockwood grades of acromioclavicular joint (ACJ) separations. Furthermore, the effect of projectional variation on these parameters was investigated in obtaining lateral Alexander view radiographs. METHODS: A Sawbone model of a scapula with clavicle was mounted on a holding device, and acromioclavicular dislocations as per the Rockwood classification system were simulated with the addition of horizontal posterior displacement...
May 25, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28546634/high-gain-graphene-transistors-with-a-thin-alox-top-gate-oxide
#10
Erica Guerriero, Paolo Pedrinazzi, Aida Mansouri, Omid Habibpour, Michael Winters, Niklas Rorsman, Ashkan Behnam, Enrique A Carrion, Amaia Pesquera, Alba Centeno, Amaia Zurutuza, Eric Pop, Herbert Zirath, Roman Sordan
The high-frequency performance of transistors is usually assessed by speed and gain figures of merit, such as the maximum oscillation frequency f max, cutoff frequency f T, ratio f max/f T, forward transmission coefficient S 21, and open-circuit voltage gain A v. All these figures of merit must be as large as possible for transistors to be useful in practical electronics applications. Here we demonstrate high-performance graphene field-effect transistors (GFETs) with a thin AlOx gate dielectric which outperform previous state-of-the-art GFETs: we obtained f max/f T > 3, A v > 30 dB, and S 21 = 12...
May 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28545818/boron-nitride-nanotubes-as-novel-fillers-for-improving-the-properties-of-dental-adhesives
#11
Felipe Weidenbach Degrazia, Vicente Castelo Branco Leitune, Susana Maria Werner Samuel, Fabrício Mezzomo Collares
OBJECTIVE: This study aimed to evaluate the physical-chemical properties of experimental dental adhesives containing boron nitride nanotubes (BNNTs) as inorganic fillers. METHODS: An experimental adhesive resin was prepared using HEMA-BisGMA, 66/33 wt% (control). Inorganic BNNT fillers were first analyzed using scanning electron microscopy (SEM) and transmission electron microscopy (TEM) and then incorporated into the adhesive at different concentration (0.05, 0...
May 22, 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/28545396/transcriptomic-resources-for-the-medicinal-legume-mucuna-pruriens-de-novo-transcriptome-assembly-annotation-identification-and-validation-of-est-ssr-markers
#12
N Sathyanarayana, Ranjith Kumar Pittala, Pankaj Kumar Tripathi, Ratan Chopra, Heikham Russiachand Singh, Vikas Belamkar, Pardeep Kumar Bhardwaj, Jeff J Doyle, Ashley N Egan
BACKGROUND: The medicinal legume Mucuna pruriens (L.) DC. has attracted attention worldwide as a source of the anti-Parkinson's drug L-Dopa. It is also a popular green manure cover crop that offers many agronomic benefits including high protein content, nitrogen fixation and soil nutrients. The plant currently lacks genomic resources and there is limited knowledge on gene expression, metabolic pathways, and genetics of secondary metabolite production. Here, we present transcriptomic resources for M...
May 25, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28544973/pegylation-of-a-tlr2-agonist-based-vaccine-delivery-system-improves-antigen-trafficking-and-the-magnitude-of-ensuing-antibody-and-cd8-t-cell-responses
#13
Toshiki Sekiya, Junya Yamagishi, John Henry V Gray, Paul G Whitney, Axel Martinelli, Weiguang Zeng, Chinn Yi Wong, Chihiro Sugimoto, David C Jackson, Brendon Y Chua
The lipopeptide R4Pam2Cys is an agonist for toll-like receptor-2 (TLR2), a key pathogen-associated molecular pattern receptor expressed on many antigen-presenting cells such as dendritic cells (DCs). Electrostatic association of R4Pam2Cys with soluble protein antigens significantly enhances their immunogenicity and there is evidence to suggest that reducing the size of suitably adjuvanted-antigen complexes in solution may further improve their immunostimulatory capabilities. In this study, we investigated how incorporation of polyethylene glycol (PEG) into R4Pam2Cys affects the size, activity and efficacy of formed antigen-lipopeptide complexes...
May 11, 2017: Biomaterials
https://www.readbyqxmd.com/read/28544154/floral-nectar-of-the-obligate-outcrossing-canavalia-gladiata-jacq-dc-fabaceae-contains-only-one-predominant-protein-a-class-iii-acidic-chitinase
#14
Xue-Long Ma, Richard I Milne, Hong-Xia Zhou, Jiang-Yu Fang, Hong-Guang Zha
Floral nectar can affect the fitness of insect-pollinated plants, through both attraction and manipulation of pollinators. Self-incompatible insect-pollinated plants receive more insect visits than their self-compatible relatives, and the nectar of such species might face more risk to be infested by the pathogens carried by pollinators than self-compatible plants. Proteins in nectar (nectarins) play an important role in the protection of nectar, but little is known regarding nectarins in self-incompatible species...
May 20, 2017: Plant Biology
https://www.readbyqxmd.com/read/28543390/the-effect-of-ebv-on-wif1-nlk-and-apc-gene-methylation-and-expression-in-gastric-carcinoma-and-nasopharyngeal-cancer
#15
Zhenzhen Zhao, Wen Liu, Jincheng Liu, Jiayi Wang, Bing Luo
Epstein-Barr virus (EBV) is an important DNA tumor virus that is associated with approximately 10% of gastric carcinomas and 99% of nasopharyngeal cancers. DNA methylation and microRNAs (miRNAs) are the most studied epigenetic mechanisms that can prompt disease susceptibility. This study aimed to detect the effect of EBV on Wnt inhibitory factor 1 (WIF1), Nemo-like kinase (NLK), and adenomatous polyposis coli (APC) gene methylation and expression in gastric carcinoma and nasopharyngeal cancer. METHODS: The WIF1, NLK, and APC gene mRNA expression levels were measured by real-time quantitative RT-PCR in four EBV-positive cell lines and four EBV-negative cell lines...
May 23, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28543103/comparison-between-local-and-systemic-injection-of-adenosine-for-detecting-dormant-conduction-after-pv-isolation
#16
Myung-Jin Cha, Eue-Keun Choi, Seil Oh
BACKGROUND: Adenosine administration after pulmonary vein (PV) isolation is effective for identifying dormant conduction (DC). We aimed to compare the efficacy and safety of local injection of adenosine into the PV with systemic intravenous injection. METHODS: After complete PV isolation was performed, adenosine was injected directly into the PV (local method; 6-18 mg) and the femoral vein (systemic method, 12-30 mg) sequentially. We compared the incidence of DC and the hemodynamic effect of adenosine between the methods...
May 24, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/28543069/real-time-dynamic-mr-image-reconstruction-using-compressed-sensing-and-principal-component-analysis-cs-pca-demonstration-in-lung-tumor-tracking
#17
Bryson Dietz, Eugene Yip, Jihyun Yun, B Gino Fallone, Keith Wachowicz
PURPOSE: This work presents a real-time dynamic image reconstruction technique, that combines compressed sensing and principal component analysis (CS-PCA), to achieve real-time adaptive radiotherapy with the use of a linac-magnetic resonance imaging system. METHODS: Six retrospective fully sampled dynamic data sets of patients diagnosed with non-small cell lung cancer were used to investigate the CS-PCA algorithm. Using a database of fully sampled k-space, principal components (PC's) were calculated to aid in the reconstruction of undersampled images...
May 19, 2017: Medical Physics
https://www.readbyqxmd.com/read/28542882/butyrate-and-retinoic-acid-synergistically-imprint-mucosal-like-dendritic-cell-development-from-bone-marrow-cells
#18
Yetao Qiang, Jie Xu, Cheng Yan, Huimin Jin, Tengfei Xiao, Nannan Yan, Liping Zhou, Huazhang An, Xiaoming Zhou, Qixiang Shao, Sheng Xia
Accumulating data show that the phenotypes and functions of distinctive mucosal dendritic cells (DCs) in the gut are regulated by retinoic acid (RA). Unfortunately, the exact role of butyrate in RA mediated mucosal DC differentiation has not been thoroughly elucidated to date. Mucosal like dendritic cell differentiation was completed in vitro by culturing bone marrow cells with growth factors (GM-CSF/IL-4), RA and/or butyrate. The phenotypes, cytokine secretion, immune functions and levels of retinal dehydrogenase of different DCs were detected using qPCR, ELISA and flow cytometry, respectively...
May 24, 2017: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/28542567/effects-of-age-and-weaning-conditions-on-blood-indicators-of-oxidative-status-in-pigs
#19
Arnaud Buchet, Catherine Belloc, Mily Leblanc-Maridor, Elodie Merlot
Weaning is a source of social, nutritional and environmental disorders that challenge piglet health. This study assesses the relevance of using plasma indicators of oxidative status as biomarkers of health around weaning in pigs. Blood antioxidant potential (BAP), hydroperoxides (HPO), oxidative stress index (OSI, e.g. HPO/BAP), vitamin A and E concentrations were investigated in two different trials. Trial A was carried out in an experimental unit to investigate the effects of age (from 12 to 147 days of age), weaning (at 21 or 28 days of age) and management at weaning (in optimal (OC) or deteriorated (DC) conditions) on those parameters...
2017: PloS One
https://www.readbyqxmd.com/read/28542506/impact-evaluation-of-different-cash-based-intervention-modalities-on-child-and-maternal-nutritional-status-in-sindh-province-pakistan-at-6-mo-and-at-1-y-a-cluster-randomised-controlled-trial
#20
Bridget Fenn, Tim Colbourn, Carmel Dolan, Silke Pietzsch, Murtaza Sangrasi, Jeremy Shoham
BACKGROUND: Cash-based interventions (CBIs), offer an interesting opportunity to prevent increases in wasting in humanitarian aid settings. However, questions remain as to the impact of CBIs on nutritional status and, therefore, how to incorporate them into emergency programmes to maximise their success in terms of improved nutritional outcomes. This study evaluated the effects of three different CBI modalities on nutritional outcomes in children under 5 y of age at 6 mo and at 1 y. METHODS AND FINDINGS: We conducted a four-arm parallel longitudinal cluster randomised controlled trial in 114 villages in Dadu District, Pakistan...
May 2017: PLoS Medicine
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