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https://www.readbyqxmd.com/read/29245178/transcriptional-regulation-of-cd4-t-cell-differentiation-in-experimentally-induced-arthritis-and-rheumatoid-arthritis
#1
REVIEW
Yuya Kondo, Masahiro Yokosawa, Shunta Kaneko, Kotona Furuyama, Seiji Segawa, Hiroto Tsuboi, Isao Matsumoto, Takayuki Sumida
Rheumatoid arthritis (RA) is a chronic inflammatory disorder characterized by infiltration of the joint synovium by activated inflammatory cells. CD4+ T cells form a large proportion of the inflammatory cells invading the synovial tissue, and are involved in the RA pathological process. In general, CD4+ T cells differentiate into various T helper (Th) cell subsets and acquire the functional characterization to respond to specific pathogens, and also mediated some autoimmune disorders such as RA. Because the differentiation of Th cell subsets is determined by the expression of specific transcription factors in response to cytokine environment, these transcription factors is considered to have a role in pathology of RA...
December 15, 2017: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/29245175/development-and-testing-of-a-hybrid-measure-of-muscle-strength-in-juvenile-dermatomyositis-for-use-in-routine-care
#2
Giulia Camilla Varnier, Silvia Rosina, Cristina Ferrari, Angela Pistorio, Alessandro Consolaro, Francesca Bovis, Sara Dalprà, Clarissa Pilkington, Susan Maillard, Adele Civino, Elena Tsitsami, Jaime de Inocencio, Marija Jelusic, Jelena Vojinovic, Graciela Espada, Balahan Makay, Maria Martha Katsicas, Polixeni Pratsidou-Gertsi, Dragana Lazarevic, Anand Prahalad Rao, Denise Pires Marafon, Nicolino Ruperto, Alberto Martini, Angelo Ravelli
OBJECTIVE: To develop and test a hybrid measure of muscle strength for juvenile dermatomyositis (JDM), which is based on the combination of the Manual Muscle Testing 8 (MMT8) and the Childhood Myositis Assessment Scale (CMAS), but is more comprehensive than the former and more feasible than the latter. METHODS: The hybrid MMT/CMAS (hMC) is composed of all 8 items of the MMT8 and 3 items of the CMAS: 1) time of head lift; 2) assessment of abdominal muscles; 3) floor rise...
December 15, 2017: Arthritis Care & Research
https://www.readbyqxmd.com/read/29245174/larger-temperature-response-of-autumn-leaf-senescence-than-spring-leaf-out-phenology
#3
Yongshuo H Fu, Shilong Piao, Nicolas Delpierre, Fanghua Hao, Heikki Hänninen, Yongjie Liu, Wenchao Sun, Ivan A Janssens, Matteo Campioli
Climate warming is substantially shifting the leaf phenological events of plants, and thereby impacting on their individual fitness and also on the structure and functioning of ecosystems. Previous studies have largely focused on the climate impact on spring phenology, and to date the processes underlying leaf senescence and their associated environmental drivers remain poorly understood. In this study, experiments with temperature gradients imposed during the summer and autumn were conducted on saplings of European beech to explore the temperature responses of leaf senescence...
December 15, 2017: Global Change Biology
https://www.readbyqxmd.com/read/29245150/mobilization-of-arsenic-on-nano-tio2-in-soil-columns-with-sulfate-reducing-bacteria
#4
Ting Luo, Li Ye, Tingshan Chan, Chuanyong Jing
Arsenic (As) remediation in contaminated water using nanoparticles is promising. However, the fate and transport of As associated with nano-adsorbents in natural environment is poorly understood. To investigate the fate of adsorbed As on nano-TiO2 in changed redox condition from oxic to anoxic, we added the As(V)-TiO2 suspension in groundwater to an autoclaved soil column which inoculated a sulfate-reducing bacterium, Desulfovibrio vulgaris DP4. The dissolved As(V) in effluent increased to 798 μg/L for the biotic column and to 1510 μg/L for the abiotic control, and dissolved As(III) was observed only in biotic column...
December 12, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/29245146/effects-of-elevated-o3-on-physiological-and-biochemical-responses-in-three-kinds-of-trees-native-to-subtropical-forest-in-china-during-non-growing-period
#5
Hao Yu, Jixin Cao, Zhan Chen, He Shang
Numerous studies have documented the negative effects of ozone (O3) on tree species in growing season, however, little is done in non-growing season. Three evergreen tree species, Phoebe bournei (Hemsl.) Yang (P. bournei), Machilus pauhoi Kanehira (M. pauhoi) and Taxus chinensis (Pilger) Rehd (T. chinensis), were exposed to non-filtered air, 100 nmol mol-1 O3 air (E1) and 150 nmol mol-1 O3 air (E2) in open-top chambers in subtropical China. In the entire period of experiment, O3 fumigation decreased net photosynthesis rate (Pn) through stomatal limitation during the transition period from growing to non-growing season (TGN), and through non-stomatal limitation during the period of non-growing season (NGS) in all species tested...
December 12, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/29245144/the-myorobot-a-novel-automated-biomechatronics-system-to-assess-voltage-ca2-biosensors-and-active-passive-biomechanics-in-muscle-and-biomaterials
#6
M Haug, B Reischl, G Prölß, C Pollmann, T Buckert, C Keidel, S Schürmann, M Hock, S Rupitsch, M Heckel, T Pöschel, T Scheibel, C Haynl, L Kiriaev, S I Head, O Friedrich
We engineered an automated biomechatronics system, MyoRobot, for robust objective and versatile assessment of muscle or polymer materials (bio-)mechanics. It covers multiple levels of muscle biosensor assessment, e.g. membrane voltage or contractile apparatus Ca2+ ion responses (force resolution 1µN, 0-10mN for the given sensor; [Ca2+] range ~ 100nM-25µM). It replaces previously tedious manual protocols to obtain exhaustive information on active/passive biomechanical properties across various morphological tissue levels...
December 7, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/29245132/transcriptome-analysis-reveals-novel-insights-into-the-response-to-pb-exposure-in-phanerochaete-chrysosporium
#7
Chao Huang, Rongzhong Wang, Guangming Zeng, Danlian Huang, Cui Lai, Jiachao Zhang, Zhihua Xiao, Jia Wan, Piao Xu, Xiaomin Gong, Wenjing Xue, Xiaoya Ren
Metals released into the environment continue to be of concern for human health. Using white-rot fungi as biosorbents for heavy metals removal is an attractive alternative owing to its good performance and low cost. However, the molecular mechanism underlying heavy metal tolerance in white-rot fungi has not yet been fully elucidated. This study identified and analyzed the lead (Pb)-induced transcriptional changes in Phanerochaete chrysosporium, a well-known heavy metal hyperaccumulating white-rot fungus. The results confirmed its outstanding ability in Pb tolerance and effective defense system...
December 9, 2017: Chemosphere
https://www.readbyqxmd.com/read/29245130/biodiesel-production-from-castor-oil-using-heterogeneous-ni-doped-zno-nanocatalyst
#8
G Baskar, I Aberna Ebenezer Selvakumari, R Aiswarya
In the present study, castor oil with high free fatty acid was used for biodiesel production using heterogeneous Ni doped ZnO nanocatalyst. Ni doped ZnO nanocomposite calcinated at 800 °C has shown better catalytic activity. Process parameters on heterogeneous catalysis of castor oil into biodiesel were optimized using conventional and Response Surface Methodology (RSM). RSM was found more accurate in estimating the optimum conditions with higher biodiesel yield (95.20%). The optimum conditions for transesterification was found to be oil to methanol molar ratio of 1:8, catalyst loading 11% (w/w), reaction temperature of 55 °C for 60 min of reaction time by response surface method...
December 8, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/29245128/anaerobic-accumulation-of-short-chain-fatty-acids-from-algae-enhanced-by-damaging-cell-structure-and-promoting-hydrolase-activity
#9
Leiyu Feng, Yunzhi Chen, Xutao Chen, Xu Duan, Jing Xie, Yinguang Chen
Short-chain fatty acid (SCFAs) produced from harvested algae by anaerobic fermentation with uncontrolled pH was limited due to the solid cell structure of algae. This study, therefore, was undertaken to enhance the generation of SCFAs from algae by controlling the fermentation pH. pH influenced not only the total SCFAs production, but the percentage of individual SCFA. The maximal yield of SCFAs occurred at pH 10.0 and fermentation time of 6 d (3161 mg COD/L), which mainly contained acetic and iso-valeric acids and was nearly eight times that at uncontrolled pH (392 mg COD/L)...
December 6, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/29245127/exogenous-allantoin-increases-arabidopsis-seedlings-tolerance-to-nacl-stress-and-regulates-expression-of-oxidative-stress-response-genes
#10
Solmaz Irani, Christopher D Todd
Allantoin is a nitrogenous compound derived from purine catabolism that contributes to nitrogen recycling in plants. Accumulation of allantoin in plant tissues and a potential role in protection of plants from abiotic stress conditions has been identified. The present work shows that application of exogenous allantoin increased stress tolerance of Arabidopsis seedlings when germinated on, or subjected to the media containing NaCl. Allantoin-induced tolerance to NaCl stress was associated with decreased production of superoxide and hydrogen peroxide in seedlings...
December 7, 2017: Journal of Plant Physiology
https://www.readbyqxmd.com/read/29245125/delayed-type-hypersensitivity-to-metals-in-connective-tissue-diseases-and-fibromyalgia
#11
REVIEW
Geir Bjørklund, Maryam Dadar, Jan Aaseth
Rheumatic diseases include a group of autoimmune disorders with environmental and genetic etiology that are characterized as a subgroup of connective tissue diseases (CTD). Rheumatoid arthritis (RA) often involves the small joints of the hands in a symmetrical fashion that can lead to loss of joint function, and RA, as well as Sjögren's syndrome (SS) and other rheumatic diseases, are often accompanied by sensitivity to metals. Numerous investigations on metal sensitivity were evaluated in this review. A detailed metal exposure history was collected by different evaluation of studies...
December 12, 2017: Environmental Research
https://www.readbyqxmd.com/read/29245109/autosomal-recessive-hypercholesterolemia-in-spain
#12
Rosa María Sánchez-Hernández, Pablo Prieto-Matos, Fernando Civeira, Eduardo Esteve Lafuente, Manuel Frías Vargas, José T Real, Fernando Goñi Goicoechea, Francisco J Fuentes, Miguel Pocovi, Mauro Boronat, Ana María Wägner, Luis Masana
BACKGROUND AND AIMS: Autosomal recessive hypercholesterolemia (ARH) is a very rare disease, caused by mutations in LDL protein receptor adaptor 1 (LDLRAP1). It is characterized by high levels of low-density lipoprotein cholesterol (LDL-C) and increased risk of premature cardiovascular disease. We aimed to characterize ARH in Spain. METHODS: Data were collected from the Dyslipidemia Registry of the Spanish Atherosclerosis Society. A literature search was performed up to June 2017, and all diagnostic genetic studies for familial hypercholesterolemia of Spain were reviewed...
December 6, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/29245108/learning-and-transfer-of-working-memory-gating-policies
#13
Apoorva Bhandari, David Badre
knowledge about the tasks we encounter enables us to rapidly and flexibly adapt to novel task contexts. Previous research has focused primarily on abstract rules that leverage shared structure in stimulus-response (S-R) mappings as the basis of such task knowledge. Here we provide evidence that working memory (WM) gating policies - a type of control policy required for internal control of WM during a task - constitute a form of abstract task knowledge that can be transferred across contexts. In two experiments, we report specific evidence for the transfer of selective WM gating policies across changes of task context...
December 12, 2017: Cognition
https://www.readbyqxmd.com/read/29245102/random-responses-inflate-statistical-estimates-in-heavily-skewed-addictions-data
#14
Kevin M King, Dale S Kim, Connor J McCabe
BACKGROUND: Some respondents may respond at random to self-report surveys, rather than responding conscientiously (Meade and Craig, 2012), and this has only recently come to the attention of researchers in the addictions field (Godinho et al., 2016). Almost no research in the published addictions literature has reported screening for random responses. We illustrate how random responses can bias statistical estimates using simulated and real data, and how this is especially problematic in skewed data, as is common with substance use outcomes...
December 9, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/29245098/the-pit-bull-attack-causing-limb-threatening-vascular-trauma-a-case-series
#15
Patrick Harnarayan, Shariful Islam, Christi Ramsingh, Vijay Naraynsingh
INTRODUCTION: Non-fatal human dog bites are commonplace amongst animal attacks on human beings and these present with mainly skin and soft tissue injuries. However, they can also present with life threatening head and neck injuries, massive soft tissue trauma, as well as combined orthopedic and vascular extremity injuries where a high possibility of limb loss exists. PRESENTATION OF CASES: We present two adult dog bite victims with multiple bites inflicted by large canines identified as Pit-Bull Terriers...
December 8, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29245089/metabolic-analysis-of-panax-notoginseng-saponins-with-gut-microbiota-mediated-biotransformation-by-hplc-dad-q-tof-ms-ms
#16
Man-Yun Chen, Li Shao, Wei Zhang, Chong-Zhi Wang, Hong-Hao Zhou, Wei-Hua Huang, Chun-Su Yuan
Saponins such as notoginsenosides and ginsenosides from Panax notoginseng are responsible for the herb's clinical applications. Unfortunately, there is poor oral bioavailability of saponins. However, gut microbiota can transform saponins to yield the metabolites that are potential bioactive substances. In this study, we aimed to characterize the metabolic profiles of P. notoginseng saponins (PNS) by incubating them with human gut microbiota. The notoginsenosides, ginsenosides and related metabolites were separated and identified using a highly sensitive and selective high-performance liquid chromatography coupled with diode array detection/quadrupole tandem time-of-flight mass spectrometry (HPLC-DAD-Q-TOF-MS/MS)...
December 7, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/29245073/synthesis-and-application-of-bismuth-ferrite-nanosheets-supported-functionalized-carbon-nanofiber-for-enhanced-electrochemical-detection-of-toxic-organic-compound-in-water-samples
#17
Sukanya Ramaraj, Sakthivel Mani, Shen-Ming Chen, Thangavelu Kokulnathan, Bih-Show Lou, M Ajmal Ali, A A Hatamleh, Fahad M A Al-Hemaid
Recently, the multiferroic material has fabulous attention in numerous applications owing to its excellent electronic conductivity, unique mechanical property, and higher electrocatalytic activity, etc. In this paper, we reported that the synthesis of bismuth ferrite (BiFeO3) nanosheets integrated functionalized carbon nanofiber (BiFeO3 NS/F-CNF) nanocomposite using a simple hydrothermal technique. Herein, the structural changes and crystalline property of prepared BiFeO3 NS/F-CNF nanocomposite were characterized using Scanning electron microscopy (SEM), Transmission electron microscopy (TEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), Raman spectroscopy and X-ray photoelectron spectroscopy (XPS)...
December 6, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/29245053/influence-of-diabetes-on-the-foreign-body-response-to-nitric-oxide-releasing-implants
#18
Robert J Soto, Elizabeth P Merricks, Dwight A Bellinger, Timothy C Nichols, Mark H Schoenfisch
The foreign body response (FBR) to nitric oxide (NO)-releasing subcutaneous implants was compared between healthy and streptozotocin-induced diabetic swine by evaluating inflammation, collagen capsule formation, and angiogenesis. Steel wire substrates were first modified with polyurethane membranes capable of diverse NO-release kinetics (NO fluxes and release durations of 0.8-630.0 pmol cm-2 s-1 and 2-13 d, respectively). The NO-releasing materials were implanted in the subcutis for 3, 10, or 25 d for histological and immunohistochemical evaluation of the FBR...
November 30, 2017: Biomaterials
https://www.readbyqxmd.com/read/29245046/physiological-and-self-report-responses-of-parents-of-children-with-autism-spectrum-disorder-to-children-crying
#19
Yagmur Ozturk, Andrea Bizzego, Gianluca Esposito, Cesare Furlanello, Paola Venuti
Little is known about the physiological response of parents of children with Autism Spectrum Disorder (ASD) to crying of children who have already received the diagnosis of ASD. This study aimed to compare cardiac dynamics via Inter-Beat Interval (IBI) and self-reported emotional states of parents of children with ASD and of parents with typically developing (TD) children while listening to crying of children with ASD (ASD cry) and of typically developing children (TD cry). Analyses revealed higher IBI in parents of children with ASD than IBI in parents of TD children while listening to both cry groups; however no differences on self-reported emotional states were observed...
December 12, 2017: Research in Developmental Disabilities
https://www.readbyqxmd.com/read/29245033/response-of-detoxification-system-genes-on-chironomus-riparius-aquatic-larvae-after-antibacterial-agent-triclosan-exposures
#20
Pedro Martínez-Paz
Triclosan (TCS) is an antimicrobial agent used in a range of personal care and consumer products and is commonly detected in aquatic ecosystems. In the present study, the effects of TCS at the molecular level on the detoxification system of Chironomus riparius aquatic larvae, a test organism widely used for the assessment of aquatic toxicology, were evaluated. The obtained results show that this xenobiotic was able to induce significant changes in transcripts from different cytochrome P450s and glutathione s-transferases genes, involved in phase I and phase II of detoxification system, respectively...
December 12, 2017: Science of the Total Environment
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