keyword
MENU ▼
Read by QxMD icon Read
search

Exhaustion

keyword
https://www.readbyqxmd.com/read/29656492/pd-1-blockade-cellular-vesicles-for-cancer-immunotherapy
#1
Xudong Zhang, Chao Wang, Jinqiang Wang, Quanyin Hu, Benjamin Langworthy, Yanqi Ye, Wujin Sun, Jing Lin, Tianfu Wang, Jason Fine, Hao Cheng, Gianpietro Dotti, Peng Huang, Zhen Gu
Cancer cells resist to the host immune antitumor response via multiple suppressive mechanisms, including the overexpression of PD-L1 that exhausts antigen-specific CD8+ T cells through PD-1 receptors. Checkpoint blockade antibodies against PD-1 or PD-L1 have shown unprecedented clinical responses. However, limited host response rate underlines the need to develop alternative engineering approaches. Here, engineered cellular nanovesicles (NVs) presenting PD-1 receptors on their membranes, which enhance antitumor responses by disrupting the PD-1/PD-L1 immune inhibitory axis, are reported...
April 14, 2018: Advanced Materials
https://www.readbyqxmd.com/read/29655923/effects-of-the-addition-of-municipal-solid-waste-incineration-fly-ash-on-the-behavior-of-polychlorinated-dibenzo-p-dioxins-and-furans-in-the-iron-ore-sintering-process
#2
Yi Min, Chengjun Liu, Peiyang Shi, Chongda Qin, Yutao Feng, Baichen Liu
Raw materials were co-sintered with municipal solid waste incineration (MSWI) fly ash through iron ore sintering to promote the safe treatment and utilization of MSWI fly ash. To assess the feasibility of this co-sintering method, in this study, the effects of the addition of MSWI fly ash on the formation and emission of polychlorinated dibenzo-p-dioxins and furans (PCDD/Fs) were estimated via iron ore sintering pot experiments. During co-sintering, most of the PCDD/Fs in the added MSWI fly ash were decomposed and transformed into PCDD/Fs associated with iron sintering, and the concentrations of lower- and mid-chlorinated congeners increased...
April 11, 2018: Waste Management
https://www.readbyqxmd.com/read/29652244/deriving-fuel-based-emission-factor-thresholds-to-interpret-heavy-duty-vehicle-roadside-plume-measurements
#3
David C Quiros, Jeremy D Smith, Walter A Ham, William H Robertson, Tao Huai, Alberto Ayala, Shaohua Hu
Remote sensing devices have been used for decades to measure gaseous emissions from individual vehicles at the roadside. Systems have also been developed that entrain diluted exhaust and can also measure particulate matter (PM) emissions. In 2015, the California Air Resources Board (CARB) reported that 8% of in-field diesel particulate filters (DPF) on heavy-duty (HD) vehicles were malfunctioning and emitted about 70% of total diesel PM emissions from the DPF-equipped fleet. A new high-emitter problem in the heavy-duty vehicle fleet had emerged...
April 13, 2018: Journal of the Air & Waste Management Association
https://www.readbyqxmd.com/read/29652218/adsorptive-conversion-of-nitrogen-dioxide-from-etching-vent-gases-over-activated-carbon
#4
Mei-Ling Fang, Ching-Yi Wu, Ming-Shean Chou
Some metal etching operations emit limited flow rates of waste gases with reddish-brown NO2 fume which may cause visual and acidic-odor complaints as well as negative healthy effects. In this study, tests were performed by passing caustic-treated waste gases vented from Al-etching operations through columns packed either with virgin or regenerated GAC (granular activated carbon) to test their adsorptive conversion performance of NO2 in the gases. The gases contained 5-55 ppm NO2 and acetic and nitric acids of below 3 ppm...
April 13, 2018: Journal of the Air & Waste Management Association
https://www.readbyqxmd.com/read/29651962/phase-iv-studies-some-insights-clarifications-and-issues
#5
Elia Mario Biganzoli, Bruno Mario Cesana
BACKGROUND: There is an increasing need to face regulatory aspects as well as ethics and scientific ones in the pharmaceutical research phase after the authorization of a drug. Traditionally, the Phase IV studies, after the authorization for a drug to be marketed by the Competent Authority like the Food and Drug Administration (FDA) (in Europe, European Medicine Agency -EMA- through National Procedures or Community Procedures) have been considered mainly aimed to the assessment of the new drug safety profile...
April 12, 2018: Current Clinical Pharmacology
https://www.readbyqxmd.com/read/29651501/fullerene-c-60-in-atmospheric-aerosol-and-its-relationship-to-combustion-processes
#6
Dolores Encinas, Zuriñe Gómez-de-Balugera
Fullerenes are emerging pollutants, and it is essential to determine and quantify these compounds to assess environmental risk and environmental flows. The goal of this work was to determine the fullerene C60 emission levels in the atmospheric aerosol and their relationship with combustion processes. To measure the concentration, a fullerene C60 extraction method with toluene was optimized in air samples using ultrasound, followed by analysis using high-pressure, liquid chromatography-diode array detector-mass spectrometry...
April 12, 2018: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/29650941/-a-case-of-an-intraductal-papillary-mucinous-neoplasm-which-rapidly-worsened-and-penetrated-into-the-stomach-and-the-transverse-colon
#7
Akira Sogawa, Kei Nakamura, Tomoyuki Nagata, Satoshi Mochizuki, Yuen Nakase, Shozo Kitai, Seishirou Inaba, Keiji Shimada
We report a case of a 71-year-old woman.She visited our hospital with a complaint of high fever and abdominal distention. She has been pointed out intraductal papillary mucinous neoplasm(IPMN)4 years ago.Abdominal CT showed cystic legion, 80mm in diameter, on the pancreas.The lesion was unclear at the boundary between the main pancreatic duct and in contact with the stomach, transverse colon.Upper endoscopic and colonoscopic examination revealed the exhaustion image from the intestional tract but not pointed out the malignant findings...
March 2018: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/29650642/setd2-regulates-quiescence-and-differentiation-of-adult-hematopoietic-stem-cells-by-restricting-rna-polymerase-ii-elongation
#8
Yile Zhou, Xiaomei Yan, Xiaomin Feng, Jiachen Bu, Yunzhu Dong, Peipei Lin, Yoshihiro Hayashi, Rui Huang, Andre Olsson, Paul R Andreassen, H Leighton Grimes, Qian-Fei Wang, Tao Cheng, Zhijian Xiao, Jie Jin, Gang Huang
SET domain containing 2 (Setd2), encoding a histone methyltransferase, is associated with many hematopoietic diseases when mutated. By generating a novel exon 6 conditional knockout mouse model, we described an essential role of Setd2 in maintaining the adult hematopoietic stem cells. Loss of Setd2 results in leukopenia, anemia, and increased platelet accompanied with hypocellularity, erythroid dysplasia, and mild fibrosis in bone marrow. Setd2 knockout mice show significantly decreased hematopoietic stem and progenitor cells except for erythroid progenitors...
April 12, 2018: Haematologica
https://www.readbyqxmd.com/read/29650158/saving-for-a-rainy-day-control-of-energy-needs-in-resurrection-plants
#9
REVIEW
Pauline Asami, Sagadevan Mundree, Brett Williams
Plants constantly respond to threats in their environment by balancing their energy needs with growth, defence and survival. Some plants such as the small group of resilient angiosperms, the resurrection plants, do this better than most. Resurrection plants possess the capacity to tolerate desiccation in vegetative tissue and upon watering, regain full metabolic capacity within 72 h. Knowledge of how these plants survive such extremes has advanced in the last few decades, but the molecular mechanics remain elusive...
June 2018: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/29649617/reversal-of-t-cell-exhaustion-by-the-first-donor-lymphocyte-infusion-is-associated-with-the-persistently-effective-anti-leukemic-responses-in-patients-with-relapsed-aml-after-allo-hsct
#10
Long Liu, Ying-Jun Chang, Lan-Ping Xu, Xiao-Hui Zhang, Yu Wang, Kai-Yan Liu, Xiao-Jun Huang
Donor lymphocyte infusion is an effective approach to treat acute myeloid leukemia (AML) relapse after allogeneic hematopoietic stem cell transplantation (allo-HSCT) that significantly improves the survival of relapsed patients. However, the mechanism of an effective anti-leukemic response following DLI in AML relapse remains elusive. Here, we investigated the role of T cell exhaustion in AML relapse after allo-HSCT in prospective cohorts of 41 patients with the first AML relapse and 41 non-relapsed AML controls after allo-HSCT and determined whether DLI exerts effective anti-leukemic effects by reversing T cell exhaustion in the relapsed cohorts by detecting the phenotypes and functions of T cells using flow cytometry...
April 9, 2018: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/29649351/epidemiological-study-of-carbon-monoxide-deaths-in-scotland-2007-2016
#11
Claudia Forés Lisbona, Hilary J Hamnett
Carbon monoxide (CO) intoxications are quite frequent in forensic toxicology. Using a sample of 209 CO-positive deaths in Scotland from 2007 to 2016, this study provides ranges of percentage CO saturations (%COHb) according to the CO source and examines any correlation with age, gender, alcohol, and preexisting disease. It also reports the full toxicological findings, including drug concentrations, in CO-positive cases. The highest numbers of fatalities involved males, occurred during autumn/winter, and the main source of CO was fire...
April 12, 2018: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/29649130/separation-identification-and-antidiabetic-activity-of-catechin-isolated-from-arbutus-unedo-l-plant-roots
#12
Hanae Naceiri Mrabti, Nidal Jaradat, Ismail Fichtali, Wessal Ouedrhiri, Shehdeh Jodeh, Samar Ayesh, Yahia Cherrah, My El Abbes Faouzi
Phytopharmaceuticals play an essential role in medicine, since the need to investigate highly effective and safe drugs for the treatment of diabetes mellitus disease remains a significant challenge for modern medicine. Arbutus unedo L. root has various therapeutic properties, and has been used widely in the traditional medicine as an antidiabetic agent. The current study aimed to isolate the pharmacologically active compound from A. unedo roots using accelerated solvent extraction technology, to determine its chemical structure using different instrumental analytical methods, and also to evaluate the α-glucosidase inhibitory activity...
April 12, 2018: Plants (Basel, Switzerland)
https://www.readbyqxmd.com/read/29648946/changing-host-photosynthetic-carbohydrate-and-energy-metabolisms-play-important-roles-in-phytoplasma-infection
#13
Chaoling Xue, Zhiguo Liu, Li Dai, Jiaodi Bu, Mengjun Liu, Zhihui Zhao, Zihui Jiang, Weilin Gao, Jin Zhao
Phytoplasmas parasitize plant phloem tissue and cause many economically important plant diseases. Jujube witches' broom disease is a destructive phytoplasma disease of Chinese jujube (Ziziphus jujuba Mill.). To elucidate the influence of phytoplasma on host photosynthetic, carbohydrate and energy metabolisms, four types of jujube tissues showing disease symptoms with different severity were investigated at the structural, physiological and molecular levels. qRT-PCR and HPLC results showed that the down-regulation of genes related to photosynthesis and the lower contents of chlorophyll in diseased leaves...
April 12, 2018: Phytopathology
https://www.readbyqxmd.com/read/29648574/association-of-frailty-with-recovery-from-disability-among-community-dwelling-older-adults-results-from-two-large-u-s-cohorts
#14
Chenkai Wu, Dae H Kim, Qian-Li Xue, David S H Lee, Ravi Varadhan, Michelle C Odden
Background: Disability in activities of daily living (ADLs) is a dynamic process and transitions among different disability states are common. However, little is known about factors affecting recovery from disability. We examined the association between frailty and recovery from disability among non-disabled community-dwelling elders. Methods: We studied 1023 adults from the Cardiovascular Health Study (CHS) and 685 adults from the Health and Retirement Study (HRS), who were ≥65 years and had incident disability, defined as having difficulty in ≥1 ADL (dressing, eating, toileting, bathing, transferring, walking across a room)...
April 10, 2018: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
https://www.readbyqxmd.com/read/29648499/burnout-among-pilots-psychosocial-factors-related-to-happiness-and-score-on-simulator-training
#15
Evangelia Demerouti, Wouter Veldhuis, Claire Coombes, Rob Hunter
In this study among airline pilots, we aim to uncover the work characteristics (job demands and resources) and the outcomes (job crafting, happiness and simulator training performance) that are related to burnout for this occupational group. Using a large sample of airline pilots, we showed that 40% of the participating pilots experience high burnout. In line with Job Demands-Resources theory, job demands were detrimental for simulator training performance because they made pilots more exhausted and less able to craft their job, whereas job resources had a favourable effect because they reduced feelings of disengagement and increased job crafting...
April 12, 2018: Ergonomics
https://www.readbyqxmd.com/read/29645275/central-and-peripheral-chemoreceptors-in-sudden-infant-death-syndrome
#16
Andrea Porzionato, Veronica Macchi, Raffaele De Caro
The pathogenesis of Sudden Infant Death Syndrome (SIDS) has been ascribed to an underlying biological vulnerability to stressors during a critical period of development. This paper reviews the main data in the literature supporting the role of central (e.g. retrotrapezoid nucleus, serotoninergic raphe nuclei, locus coeruleus, orexinergic neurons, ventral medullary surface, solitary tract nucleus) and peripheral (e.g. carotid body) chemoreceptors in the pathogenesis of SIDS. Clinical and experimental studies indicate that central and peripheral chemoreceptors undergo critical development during the initial postnatal period, consistent with the age range of SIDS (< 1 year)...
April 12, 2018: Journal of Physiology
https://www.readbyqxmd.com/read/29645033/ion-pairing-in-1-butyl-3-methylpyridinium-halide-ionic-liquids-studied-using-nmr-and-dft-calculations
#17
Vincent P Swamy, Hirekodathakallu V Thulasiram, Federico Rastrelli, Giacomo Saielli
We present the 1H, 13C and 15N NMR chemical shifts of bulk ionic liquids based on 1-butyl-3-methylimidazolium (the cation also known as 1-butyl-3-picolinium) halides (Cl-, Br- and I-) and tribromide (Br3-) salts. A characterization in solution of the analogous ICl2- and I3- salts is also reported. A series of DFT calculations has been run to predict the features of the NMR spectra of the pure ILs based on a few selected supramolecular ionic aggregates. To test the effect of temperature, and vibrational and conformational motions, only for the chloride salt, we also run first-principles molecular dynamics simulations of the ion pair in the gas phase, using the ADMP scheme (Atom Centered Density Matrix Propagation molecular dynamics model)...
April 12, 2018: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/29644653/specific-blockade-cd73-alters-the-exhausted-phenotype-of-t-cells-in-head-and-neck-squamous-cell-carcinoma
#18
Wei-Wei Deng, Yi-Cun Li, Si-Rui Ma, Liang Mao, Guang-Tao Yu, Lin-Lin Bu, Ashok B Kulkarni, Wen-Feng Zhang, Zhi-Jun Sun
The adenosine-induced immunosuppression hampers the immune response toward tumor cells and facilitates the tumor cells to evade immunosurveillance. CD73, an ecto-5-nucleotidase, is the ectoenzyme dephosphorylating extracellular AMP to adenosine. Here, using immunocompetent transgenic head and neck squamous cell carcinoma (HNSCC) mouse model, immune profiling showed high expression of CD73 on CD4+ and CD8+ T cells was associated with an 'exhausted' phenotype. Further, treatment with anti-CD73 monoclonal antibody (mAb) significantly blunted the tumor growth in the mouse model, and the blockade of CD73 reversed the 'exhausted' phenotype of CD4+ and CD8+ T cells through downregulation of total expression of PD-1 and CTLA-4 on T cells...
April 12, 2018: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/29643477/accurate-estimation-of-5-methylcytosine-in-mammalian-mitochondrial-dna
#19
Shigeru Matsuda, Takehiro Yasukawa, Yuriko Sakaguchi, Kenji Ichiyanagi, Motoko Unoki, Kazuhito Gotoh, Kei Fukuda, Hiroyuki Sasaki, Tsutomu Suzuki, Dongchon Kang
Whilst 5-methylcytosine (5mC) is a major epigenetic mark in the nuclear DNA in mammals, whether or not mitochondrial DNA (mtDNA) receives 5mC modification remains controversial. Herein, we exhaustively analysed mouse mtDNA using three methods that are based upon different principles for detecting 5mC. Next-generation bisulfite sequencing did not give any significant signatures of methylation in mtDNAs of liver, brain and embryonic stem cells (ESCs). Also, treatment with methylated cytosine-sensitive endonuclease McrBC resulted in no substantial decrease of mtDNA band intensities in Southern hybridisation...
April 11, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29643231/personalized-cancer-vaccine-effectively-mobilizes-antitumor-t-cell-immunity-in-ovarian-cancer
#20
Janos L Tanyi, Sara Bobisse, Eran Ophir, Sandra Tuyaerts, Annalisa Roberti, Raphael Genolet, Petra Baumgartner, Brian J Stevenson, Christian Iseli, Denarda Dangaj, Brian Czerniecki, Aikaterini Semilietof, Julien Racle, Alexandra Michel, Ioannis Xenarios, Cheryl Chiang, Dimitri S Monos, Drew A Torigian, Harvey L Nisenbaum, Olivier Michielin, Carl H June, Bruce L Levine, Daniel J Powel, David Gfeller, Rosemarie Mick, Urania Dafni, Vincent Zoete, Alexandre Harari, George Coukos, Lana E Kandalaft
We conducted a pilot clinical trial testing a personalized vaccine generated by autologous dendritic cells (DCs) pulsed with oxidized autologous whole-tumor cell lysate (OCDC), which was injected intranodally in platinum-treated, immunotherapy-naïve, recurrent ovarian cancer patients. OCDC was administered alone (cohort 1, n = 5), in combination with bevacizumab (cohort 2, n = 10), or bevacizumab plus low-dose intravenous cyclophosphamide (cohort 3, n = 10) until disease progression or vaccine exhaustion. A total of 392 vaccine doses were administered without serious adverse events...
April 11, 2018: Science Translational Medicine
keyword
keyword
19039
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"