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https://www.readbyqxmd.com/read/29049870/dendrimers-breaking-the-paradigm-of-current-musculoskeletal-autoimmune-therapies
#1
REVIEW
Daniel B Rodrigues, Joaquim M Oliveira, Tírcia C Santos, Rui L Reis
The advances achieved by cell-based therapies to treat autoimmune diseases such as rheumatoid arthritis (RA) and multiple sclerosis (MS), despite promising, are still insufficient for the current demands. RA and MS therapeutic approaches follow world guidelines to use disease modifying drugs and biological agents which, regardless of some good results in clinical outcomes, are well known for several systemic secondary side effects. Dendrimers are custom-made nanoparticles with proved clinical potential, displaying proper size, chemistries, immunomodulatory and anti-inflammatory properties...
October 19, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/29049200/subclinical-atherosclerosis-and-history-of-cardiovascular-events-in-italian-patients-with-rheumatoid-arthritis-results-from-a-cross-sectional-multicenter-girrcs-gruppo-italiano-di-ricerca-in-reumatologia-clinica-e-sperimentale-study
#2
Piero Ruscitti, Domenico Paolo Emanuele Margiotta, Federica Macaluso, Daniela Iacono, Francesca D'Onofrio, Giacomo Emmi, Fabiola Atzeni, Marcella Prete, Federico Perosa, Piercarlo Sarzi-Puttini, Lorenzo Emmi, Francesco Paolo Cantatore, Giovanni Triolo, Antonella Afeltra, Roberto Giacomelli, Gabriele Valentini
Several studies have pointed out a significant association between rheumatoid arthritis (RA) and accelerated atherosclerosis. At the best of our knowledge, no such study has been carried out in a large Italian series and, in this study, we aimed to investigate the prevalence of both subclinical atherosclerosis and history of cardiovascular events (CVEs), in patients consecutively admitted from January 1, 2015 to December 31, 2015 to Rheumatology Units throughout the whole Italy.Centers members of GIRRCS (Gruppo Italiano di Ricerca in Reumatologia Clinica e Sperimentale) were invited to enrol patients consecutively admitted from January 1, 2015 to December 31, 2015 and satisfying American College of Rheumatology/ European League Against Rheumatism criteria for RA and to investigate each of them for: traditional cardiovascular risk factors: sex, age, smoking habit, total cholesterol, triglycerides, glycaemia, high blood pressure, metabolic syndrome (MS), type 2 diabetes (T2D); RA features: disease duration as assessed from the first symptom, disease activity as evaluated by DAS28, radiographic damage as assessed by hands and feet x-ray, and previous joint surgery; prevalence of both subclinical atherosclerosis and history of CVEs...
October 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29028255/wipe-sampling-method-and-evaluation-of-environmental-variables-for-assessing-surface-contamination-of-10-antineoplastic-drugs-by-liquid-chromatography-tandem-mass-spectrometry
#3
Manuel Colombo, Matthew Jeronimo, George Astrakianakis, Chirag Apte, Chun-Yip Hon
This paper describes a novel wipe sampling and high-performance liquid chromatography/tandem mass spectrometry (HPLC-MS/MS) method capable of simultaneously detecting 10 antineoplastic drugs (5-fluorouracil, oxaliplatin, methotrexate, vindesine, ifosfamide, cyclophosphamide, vincristine, vinblastine, docetaxel, and paclitaxel). The good overall recoveries and sensitivity values of this method along with the comparatively short run time (8 min) allows for its use in routine monitoring in health care facilities...
October 1, 2017: Annals of Work Exposures and Health
https://www.readbyqxmd.com/read/28975659/chromatographic-determination-decline-dynamic-and-risk-assessment-of-sulfoxaflor-in-asian-pear-and-oriental-melon
#4
Md Humayun Kabir, A M Abd El-Aty, Md Musfiqur Rahman, Hyung Suk Chung, Han Sol Lee, Sung Woo Kim, Hee-Ra Chang, Ho-Chul Shin, Sung Shik Shin, Jae-Han Shim
The dissipation pattern of sulfoxaflor in Asian pear cultivated in an open field conditions and in oriental melon grown under plastic house conditions was each studied in two different locations. Residues in field-treated samples were determined using liquid chromatography (LC) coupled with an ultraviolet detector (UVD) and confirmed by liquid chromatography-tandem mass spectrometry (LC-MS/MS). A calibration curve for sulfoxaflor was linear over the concentration range 0.1-5.0 mg/L, with a coefficient of determination (R(2) ≥) of 0...
October 4, 2017: Biomedical Chromatography: BMC
https://www.readbyqxmd.com/read/28973422/elevated-metabolites-of-steroidogenesis-and-amino-acid-metabolism-in-preadolescent-female-children-with-high-urinary-bisphenol-a-levels-a-high-resolution-metabolomics-study
#5
Adnan Khan, Hyesook Park, Hye Ah Lee, Bohyun Park, Hye Sun Gwak, Hye-Ra Lee, Sun Ha Jee, Youngja H Park
Health risks associated with bisphenol A (BPA) exposure are controversially highlighted by numerous studies. High-resolution metabolomics can confirm these proposed associations and may provide a mechanistic insight into the connections between BPA exposure and metabolic perturbations. This study was aimed to identify the changes in metabolomics profile due to BPA exposure in urine and serum samples collected from female and male children (n = 18) aged 7-9. Urine was measured for BPA concentration, and the children were subsequently classified into high and low BPA groups...
September 9, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/28955976/diacylglycerol-kinase-%C3%AE-generates-dipalmitoyl-phosphatidic-acid-species-during-neuroblastoma-cell-differentiation
#6
Satoru Mizuno, Sayaka Kado, Kaoru Goto, Daisuke Takahashi, Fumio Sakane
Phosphatidic acid (PA) is one of the phospholipids composing the plasma membrane and acts as a second messenger to regulate a wide variety of important cellular events, including mitogenesis, migration and differentiation. PA consists of various molecular species with different acyl chains at the sn-1 and sn-2 positions. However, it has been poorly understood what PA molecular species are produced during such cellular events. Here we identified the PA molecular species generated during retinoic acid (RA)-induced neuroblastoma cell differentiation using a newly established liquid chromatography/mass spectrometry (LC/MS) method...
December 2016: Biochemistry and Biophysics Reports
https://www.readbyqxmd.com/read/28946518/comparison-of-25-hidroksi-vitamin-d-serum-concentrations-in-patients-with-psoriasis-and-psoriatic-arthritis
#7
Mustafa Serdar Sağ, Sinem Sağ, İbrahim Tekeoğlu, Berna Solak, Ayhan Kamanlı, Kemal Nas, Halil Harman, Mine Kantar
BACKGROUND AND OBJECT: Rheumatoid arthritis (RA), insulin-dependent diabetes mellitus (IDDM), inflammatory bowel disease, systemic lupus erythematosus (SLE) and multiple sclerosis (MS) are some of the autoimmune diseases related to the decreases in Vitamin D levels. The same immunological properties as psoriasis, such as Th1/Th2 dysregulation, are seen in all of them. This study aims to compare 25-hidroksi Vitamin D (25-OHD) serum concentrations in patients with psoriasis and psoriatic arthritis...
September 8, 2017: Journal of Back and Musculoskeletal Rehabilitation
https://www.readbyqxmd.com/read/28926792/u-isotopes-distribution-in-the-lower-rhone-river-and-its-implication-on-radionuclides-disequilibrium-within-the-decay-series
#8
REVIEW
Mathilde Zebracki, Xavier Cagnat, Stéphanie Gairoard, Nicolas Cariou, Frédérique Eyrolle-Boyer, Béatrice Boulet, Christelle Antonelli
The large rivers are main pathways for the delivery of suspended sediments into coastal environments, affecting the biogeochemical fluxes and the ecosystem functioning. The radionuclides from (238)U and (232)Th-series can be used to understand the dynamic processes affecting both catchment soil erosion and sediment delivery to oceans. Based on annual water discharge the Rhone River represents the largest river of the Mediterranean Sea. The Rhone valley also represents the largest concentration in nuclear power plants in Europe...
September 16, 2017: Journal of Environmental Radioactivity
https://www.readbyqxmd.com/read/28910706/pharmacokinetics-and-tissue-distribution-of-five-major-triterpenoids-after-oral-administration-of-rhizoma-alismatis-extract-to-rats-using-ultra-high-performance-liquid-chromatography-tandem-mass-spectrometry
#9
Wen Xu, Xiaoyan Li, Na Lin, Xue Zhang, Xiaoqiang Huang, Tingting Wu, Yanni Tai, Shuyun Chen, Chieh-Hsi Wu, Mingqing Huang, Shuisheng Wu
Rhizoma Alismatis (RA) was wildly used for treatment of dysuria, pyelonephritis, hyperlipidemia, enteritis diarrhea, diabetes, inflammation, and cancer. Triterpenoids are the major active components of RA, and its extract is mainly composed of alisol A (ALA), alisol B (ALB), alisol C 23-acetate (ALC-23A), alisol A 24-acetate (ALA-24A), and alisol B 23-acetate (ALB-23A). In this study, a simple, reliable, and sensitive ultra high-performance liquid chromatography with triple quadrupole mass spectrometry (UHPLC-MS/MS) method was created and validated for the quantification of the five major triterpenoids in rat plasma and various tissues biosamples (including intestine, stomach, liver, kidney, fat, muscle, brain, heart, lung, spleen, and testes)...
September 6, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28870784/isotypes-of-autoantibodies-against-differentially-expressed-novel-malondialdehyde-modified-peptide-adducts-in-serum-of-taiwanese-women-with-rheumatoid-arthritis
#10
Chen-Chung Liao, Yu-Sheng Chang, Chao-Wen Cheng, Wei-Ming Chi, Kai-Leun Tsai, Wei-Jung Chen, Ting-Shuan Kung, Chih-Chun Tai, Yi-Fang Lin, Hung-Tse Lin, Yi-Ying Lu, Ching-Yu Lin
This study identified and validated four differentially expressed novel malondialdehyde (MDA)-modified peptide adducts and evaluated autoantibodies against native and MDA-modified peptides among Taiwanese women patients with rheumatoid arthritis (RA), osteoarthritis (OA) and healthy controls (HCs). Ig kappa chain C region(76-99), alpha-1-antitrypsin(284-298), alpha-2-macroglobulin(824-841), and apolipoprotein B-100(4022-4040) exhibiting 2-fold differences in relative modification ratios were identified by concanavalin A (Con A) affinity chromatography, 1D SDS-PAGE, in-gel digestion, nano-LC/MS/MS and nano-LC/MS using pooled serum-derived Con A-captured proteins from 9 RA and 9 age-matched HCs...
September 1, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/28867637/sinomenine-induced-histamine-release-like-anaphylactoid-reactions-are-blocked-by-tranilast-via-inhibiting-nf-%C3%AE%C2%BAb-signaling
#11
Lufen Huang, Yan Dong, Jianlin Wu, Peixun Wang, Hua Zhou, Ting Li, Liang Liu
Zhengqing Fengtongning (ZQFTN), the pharmaceutical preparation of sinomenine (SIN) derived from the medicinal plant Sinmenium acutum, is well-known in China as an effective treatment for rheumatoid arthritis (RA). However, its histamine-release anaphylactoid reactions (HRARs) occur often in some patients. Therefore, it is desirable to establish effective clinical protocols to manage such HRARs. In the study, rat models with systemic HRARs and local HRARs of the skin were established. The level of vascular permeability and mast cell numbers was determined by quantitative analysis using Evans blue dye and histological assays...
September 1, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/28867419/increased-incidence-of-psychiatric-disorders-in-immune-mediated-inflammatory-disease
#12
Ruth Ann Marrie, Randy Walld, James M Bolton, Jitender Sareen, John R Walker, Scott B Patten, Alexander Singer, Lisa M Lix, Carol A Hitchon, Renée El-Gabalawy, Alan Katz, John D Fisk, Charles N Bernstein
OBJECTIVE: Although psychiatric comorbidity is known to be more prevalent in immune-mediated inflammatory diseases (IMID) than in the general population, the incidence of psychiatric comorbidity in IMID is less understood, yet incidence is more relevant for understanding etiology. METHODS: Using population-based administrative (health) data, we conducted a retrospective cohort study over the period 1989-2012 in Manitoba, Canada. We identified 19,572 incident cases of IMID including 6119 persons with inflammatory bowel disease (IBD), 3514 persons with multiple sclerosis (MS), 10,206 persons with rheumatoid arthritis (RA), and 97,727 age-, sex- and geographically-matched controls...
October 2017: Journal of Psychosomatic Research
https://www.readbyqxmd.com/read/28833757/the-sawtooth-ekg-pattern-of-typical-atrial-flutter-is-not-related-to-slow-conduction-velocity-at-the-cavotricuspid-isthmus
#13
Arunashis Sau, Markus B Sikkel, Vishal Luther, Ian Wright, Fernando Guerrero, Michael Koa-Wing, David Lefroy, Nicholas Linton, Norman Qureshi, Zachary Whinnett, Phang Boon Lim, Prapa Kanagaratnam, Nicholas S Peters, D Wyn Davies
INTRODUCTION: We hypothesized that very high-density mapping of typical atrial flutter (AFL) would facilitate a more complete understanding of its circuit. Such very high-density mapping was performed with the Rhythmia(TM) (Boston Scientific) mapping system using its 64 electrode basket catheter. METHODS AND RESULTS: Data were acquired from 13 patients in AFL. Functional anatomy of the right atrium (RA) was readily identified during mapping including the Crista Terminalis and Eustachian ridge...
August 22, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28829212/targeting-methionine-cycle-as-a-potential-therapeutic-strategy-for-immune-disorders
#14
Heng Li, Huimin Lu, Wei Tang, Jianping Zuo
Methionine cycle plays an essential role in regulating many cellular events, especially transmethylation reactions, incorporating the methyl donor S-adenosylmethionine (SAM). The transmethylations and substances involved in the cycle have shown complicated effects and mechanisms on immunocytes developments and activations, and exert crucial impacts on the pathological processes in immune disorders. Areas covered: Methionine cycle has been considered as an effective means of drug developments. This review discussed the role of methionine cycle in immune responses and summarized the potential therapeutic strategies based on the cycle, including SAM analogs, methyltransferase inhibitors, S-adenosylhomocysteine hydrolase (SAHH) inhibitors, adenosine receptors specific agonists or antagonists and homocysteine (Hcy)-lowering reagents, in treating human immunodeficiency virus (HIV) infections, systemic lupus erythematosus (SLE), rheumatoid arthritis (RA), multiple sclerosis (MS), systemic sclerosis (SSc) and other immune disorders...
August 22, 2017: Expert Opinion on Therapeutic Targets
https://www.readbyqxmd.com/read/28805952/constituents-from-scutellaria-barbata-inhibiting-nitric-oxide-production-in-lps-stimulated-microglial-cells
#15
So Ra Lee, Min-Suk Kim, Sunggun Kim, Kwang Woo Hwang, So-Young Park
The arial parts of Scutellaria barbata D. Don (Lamiaceae) efficiently inhibited NO production in BV2 microglial cells, and the active constituents were further isolated based on activity-guided isolation using silica-gel column chromatography, RP-C18 MPLC and prep-HPLC. As the results, 2 flavonoids including 6-methoxynaringenin (1) and 6-O-methylscutellarein (5), and 6 neo-clerodane diterpenes such as scutebarbatine W (2), scutebatas B (3), scutebarbatine B (4), scutebarbatine A (6), 6-O-nicotinolylscutebarbatine G (7) and scutebarbatine X (8) were isolated...
August 14, 2017: Chemistry & Biodiversity
https://www.readbyqxmd.com/read/28795711/rational-design-of-thermo-responsive-adsorbents-demand-oriented-active-sites-for-the-adsorption-of-dyes
#16
Yao Jiang, Shu-Feng Shan, Wei Liu, Jing Zhu, Qiu-Xia He, Peng Tan, Lei Cheng, Xiao-Qin Liu, Lin-Bing Sun
A smart adsorbent RA@MS is fabricated by incorporating a di-block copolymer through the combination of the thermo-responsive block poly(N-isopropylacrylamide) (R) and the active block poly{N-[3-(dimethylamino) propyl]methacrylamide} (A, tertiary amines as basic sites) into mesoporous silica. The di-block copolymer RA preserves the thermo-responsive nature, which makes the active sites reversibly exposed/blocked in light of temperature variation. The obtained adsorbent possessing thermo-responsive properties can thus realize both selective adsorption and efficient regeneration for temperature-swing adsorption (TSA) of dyes...
August 10, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/28780745/effectiveness-and-safety-of-dimethyl-fumurate-treatment-in-relapsing-multiple-sclerosis-patients-a-real-world-evidence
#17
Raed Alroughani, Samar Farouk Ahmed, Raed Behbehani, Jasem Al-Hashel
INTRODUCTION: Dimethyl fumurate (DMF) has been recently approved as a disease-modifying therapy for the treatment of multiple sclerosis (MS). Post-marketing studies are important to confirm what was established in clinical trials. OBJECTIVE: To evaluate effectiveness and safety of DMF and to measure the occurrence of lymphopenia in a cohort of MS patients in a clinical setting. METHODS: Using the national MS registry, we prospectively assessed relapsing MS patients who had been prescribed DMF for at least 6 months...
August 5, 2017: Neurology and Therapy
https://www.readbyqxmd.com/read/28763046/increased-frequency-of-rheumatoid-arthritis-and-allergic-rhinitis-among-pesticide-sprayers-and-associations-with-pesticide-use
#18
Michalis Koureas, George Rachiotis, Andreas Tsakalof, Christos Hadjichristodoulou
Objective: The aim of this study was to identify diseases linked with the pesticide sprayer occupation and explore possible associations with exposure history data. Methods: Α cross sectional study was conducted among pesticide sprayers (n = 80) and the general population (n = 90) in Thessaly (Greece). Medical history, demographic characteristics and detailed exposure history were recorded by conducting personal interviews. Lifetime exposure indicators were calculated for several pesticide chemical subclasses...
August 1, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28736929/impact-of-cost-sharing-increases-on-continuity-of-specialty-drug-use-a-quasi-experimental-study
#19
Pengxiang Li, Tianyan Hu, Xinyan Yu, Salim Chahin, Nabila Dahodwala, Marissa Blum, Amy R Pettit, Jalpa A Doshi
OBJECTIVE: To examine the impact of cost-sharing increases on continuity of specialty drug use in Medicare beneficiaries with multiple sclerosis (MS) or rheumatoid arthritis (RA). DATA SOURCES/STUDY SETTING: Five percent Medicare claims data (2007-2010). STUDY DESIGN: Quasi-experimental study examining changes in specialty drug use among a group of Medicare Part D beneficiaries without low-income subsidies (non-LIS) as they transitioned from a 5 percent cost-sharing preperiod to a ≥25 percent cost-sharing postperiod, as compared to changes among a disease-matched contemporaneous control group of patients eligible for full low-income subsidies (LIS), who faced minor cost sharing (≤$6...
July 24, 2017: Health Services Research
https://www.readbyqxmd.com/read/28731579/residual-dynamic-and-risk-assessment-of-dimethomorph-in-swiss-chard-grown-in-two-different-sites
#20
Md Humayun Kabir, A M Abd El-Aty, Md Musfiqur Rahman, Hyung Suk Chung, Han Sol Lee, Mi-Ra Kim, Byung-Joon Chang, Jing Wang, Ho-Chul Shin, Jae-Han Shim
Residue analysis of dimethomorph in Swiss chard cultivated at two different locations under greenhouse conditions was conducted using high-performance liquid chromatography-ultraviolet detector (HPLC-UVD) and confirmed by tandem mass spectrometry (LC-MS/MS). The randomly collected samples (over 14 days) were extracted with acetonitrile and purified using a Florisil solid-phase extraction (SPE) cartridge. Linearity over a concentration range of 0.05-50.0 mg/L had an excellent coefficient of determination (R(2) ) = 0...
July 21, 2017: Biomedical Chromatography: BMC
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