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https://www.readbyqxmd.com/read/28644992/surface-coating-modulated-toxic-responses-to-silver-nanoparticles-in-wolffia-globosa
#1
Xiaoyan Zou, Penghui Li, Jie Lou, Hongwu Zhang
With the omnipresence of silver nanoparticles (AgNPs) in our daily consumer products, their release has raised serious concerns. However, the biochemical mechanisms by which plants counteract the toxicity of nanoparticles are largely unknown. This study investigated the exposure of aquatic Wolffia globosa to ATP-nAg (AgNPs coated with adenosine triphosphate), cit-nAg (AgNPs coated with citrate), and Ag(+). Hill reaction activity was basically lost in W. globosa treated with 10mg/L ATP-nAg and Ag(+), while the activity was still maintained at 38...
June 15, 2017: Aquatic Toxicology
https://www.readbyqxmd.com/read/28643348/the-construction-of-a-panel-of-serum-amino-acids-for-the-identification-of-early-chronic-kidney-disease-patients
#2
Rui Li, Jinna Dai, Hui Kang
BACKGROUND: Serum creatinine, urea, and cystatin-c are standardly used for the evaluation of renal function in the clinic. However, some patients have chronic kidney disease but still retain kidney function; a conventional serum index in these patients can be completely normal. Serum amino acid levels can reflect subtle changes in metabolism and are closely related to renal function. Here, we investigated how amino acids change as renal impairment increases. METHODS: Subjects were divided into three groups by renal function glomerular filtration rate: healthy controls, patients with chronic kidney disease with normal kidney function, and patients with chronic kidney disease with decreased kidney function group...
June 23, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28643101/cognitive-performance-correlates-with-the-degree-of-dopaminergic-degeneration-in-the-associative-part-of-the-striatum-in-non-demented-parkinson-s-patients
#3
Dorothee Kübler, Henning Schroll, Ralph Buchert, Andrea A Kühn
Parkinson's disease (PD) patients show cognitive deficits that are relevant in terms of prognosis and quality of life. Degeneration of striatal dopaminergic afferents proceeds from dorsal/caudal to anterior/ventral and is discussed to account for some of these symptoms. Treatment with dopamine (DA) has differential effects on cognitive dysfunctions, improving some and worsening others. We hypothesized that cognitive performance during the dopaminergic OFF state correlates with DAT availability in the associative striatum...
June 22, 2017: Journal of Neural Transmission
https://www.readbyqxmd.com/read/28636074/optimizing-outcomes-in-pancreas-transplantation-impact-of-organ-preservation-time
#4
Ehren N Rudolph, Ty B Dunn, David E R Sutherland, Raja Kandaswamy, Erik B Finger
Recent changes to pancreas graft allocation policy have increased the number of organs available for regional and distant sharing, which results in a corresponding increase in preservation time. We sought to systematically assess the impact of cold ischemia time (CIT) on outcomes posttransplant. A retrospective review of 1,253 pancreas transplants performed at a single transplant center was performed to correlate CIT to transplant outcomes. The rate of technical failure (TF) increased with 20+ hours of CIT, with a 2...
June 21, 2017: Clinical Transplantation
https://www.readbyqxmd.com/read/28632695/serum-ceruloplasmin-and-striatal-dopamine-transporter-density-in-parkinson-disease-comparison-with-123i-fp-cit-spect
#5
Yoo Sung Song, Jong-Min Kim, Kyeong Joon Kim, Ji Young Yun, Sang Eun Kim
PURPOSE: In patients with Parkinson disease (PD), decreased serum ceruloplasmin levels have been observed. This study investigated a correlation between serum ceruloplasmin-along with its related serum markers- and striatal presynaptic dopaminergic denervation measured with I-FP-CIT SPECT. METHODS: We analyzed a total of 141 de novo patients divided into 2 groups: the PD group (107 patients with PD) and the disease control group (34 patients with vascular pseudoparkinsonism, essential tremor, or drug-induced parkinsonism)...
June 19, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28629634/-123-i-fp-cit-spect-imaging-in-blepharospasm
#6
M De Verdal, D Renard, L Collombier, G Castelnovo
INTRODUCTION: Blepharospasm is a focal dystonia characterized by involuntary cocontraction of the eyelid protractors, causing spasmodic closure of the eyelids. Apraxia of eyelid opening is caused by an inability to initiate lid opening without paralytic abnormality. Some studies suggest that patients with either pure blepharospasm or blepharospasm associated with apraxia of eyelid opening are more prone to developing Parkinson's disease. METHODS: In our study, (123)I-FP-CIT (DAT) SPECT was performed in 24 patients with either pure blepharospasm or blepharospasm associated with apraxia of eyelid opening and no signs of parkinsonism to identify dopaminergic dysfunction...
June 16, 2017: Revue Neurologique
https://www.readbyqxmd.com/read/28628594/telehealth-wearable-sensors-and-the-internet-will-they-improve-stroke-outcomes-through-increased-intensity-of-therapy-motivation-and-adherence-to-rehabilitation-programs
#7
Jane H Burridge, Alan Chong W Lee, Ruth Turk, Maria Stokes, Jill Whitall, Ravi Vaidyanathan, Phil Clatworthy, Ann-Marie Hughes, Claire Meagher, Enrico Franco, Lucy Yardley
BACKGROUND AND PURPOSE: Stroke, predominantly a condition of older age, is a major cause of acquired disability in the global population and puts an increasing burden on health care resources. Clear evidence for the importance of intensity of therapy in optimizing functional outcomes is found in animal models, supported by neuroimaging and behavioral research, and strengthened by recent meta-analyses from multiple clinical trials. However, providing intensive therapy using conventional treatment paradigms is expensive and sometimes not feasible because of social and environmental factors...
July 2017: Journal of Neurologic Physical Therapy: JNPT
https://www.readbyqxmd.com/read/28606906/a-randomised-comparison-of-conventional-versus-intentional-strategy-in-patients-with-high-risk-prediction-of-side-branch-occlusion-in-coronary-bifurcation-intervention-rationale-and-design-of-the-cit-resolve-trial
#8
Dong Zhang, Dong Yin, Chenxi Song, Chengang Zhu, Ajay J Kirtane, Bo Xu, Kefei Dou
INTRODUCTION: The intentional strategy (aggressive side branch (SB) protection strategy: elective two-stent strategy or jailed balloon technique) is thought to be associated with lower SB occlusion rate than conventional strategy (provisional two-stent strategy or jailed wire technique). However, most previous studies showed comparable outcomes between the two strategies, probably due to no risk classification of SB occlusion when enrolling patients. There is still no randomised trial compared the intentional and conventional strategy when treating bifurcation lesions with high risk of SB occlusion...
June 12, 2017: BMJ Open
https://www.readbyqxmd.com/read/28589701/ighv-mutational-status-testing-in-chronic-lymphocytic-leukemia
#9
Jennifer Crombie, Matthew S Davids
As the therapeutic landscape for chronic lymphocytic leukemia (CLL) continues to expand, biological predictors of response to therapy are becoming increasingly important. One such predictive biomarker is the mutational status of the variable region of the immunoglobulin heavy chain (IGHV) gene, which is a powerful predictor of duration of response and overall survival with chemoimmunotherapy (CIT). As this test may influence choice of therapy between CIT and novel agents, it is critical that providers understand how mutational status is determined and the limitations of testing...
June 7, 2017: American Journal of Hematology
https://www.readbyqxmd.com/read/28583398/the-emerging-world-of-breast-cancer-immunotherapy
#10
Mark R Nathan, Peter Schmid
Over the last few years, the developments around cancer immunotherapy (CIT) have led to a paradigm shift in the treatment of many different cancers, in particular melanoma, renal, bladder and lung cancers with a remarkable impact on response rate and, most importantly, overall survival. Breast cancer is most commonly considered to be a 'non-inflamed' cancer and so this shift has been less marked within its treatment. However, some subsets of breast cancer, most notably triple negative breast cancer, are deemed to be more 'inflamed' and therefore may prove to be an appropriate cohort for CIT...
June 2, 2017: Breast: Official Journal of the European Society of Mastology
https://www.readbyqxmd.com/read/28574876/utility-of-follow-up-dopamine-transporter-spect-with-123i-fp-cit-in-the-diagnostic-workup-of-patients-with-clinically-uncertain-parkinsonian-syndrome
#11
Ivayla Apostolova, Daulat S Taleb, Axel Lipp, Imke Galazky, Dennis Kupitz, Catharina Lange, Marcus R Makowski, Winfried Brenner, Holger Amthauer, Michail Plotkin, Ralph Buchert
PURPOSE: Dopamine transporter SPECT with I-FP-CIT is registered for detection (or exclusion) of nigrostriatal degeneration to support the etiologic classification of parkinsonian syndromes. In case of uncertainty in the interpretation of SPECT findings or unexpected clinical course, follow-up SPECT might be useful. However, the utility of follow-up FP-CIT SPECT has not yet been clarified. METHODS: One hundred forty-one patients (65.1 ± 10.4 years) from 3 sites with follow-up FP-CIT SPECT 22...
June 1, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28566738/structural-insights-into-the-elevator-like-mechanism-of-the-sodium-citrate-symporter-cits
#12
Ji Won Kim, Subin Kim, Songwon Kim, Haerim Lee, Jie-Oh Lee, Mi Sun Jin
The sodium-dependent citrate transporter of Klebsiella pneumoniae (KpCitS) belongs to the 2-hydroxycarboxylate transporter (2-HCT) family and allows the cell to use citrate as sole carbon and energy source in anaerobic conditions. Here we present crystal structures of KpCitS in citrate-bound outward-facing, citrate-bound asymmetric, and citrate-free inward-facing state. The structures reveal that the KpCitS dimerization domain remains stationary throughout the transport cycle due to a hydrogen bond network as well as extensive hydrophobic interactions...
May 31, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28551573/hybrid-magnetic-scaffolds-the-role-of-scaffolds-charge-on-the-cell-proliferation-and-ca-2-ions-permeation
#13
Pollyana S Castro, Mauro Bertotti, Alliny F Naves, Luiz Henrique Catalani, Daniel R Cornejo, Georgia D Bloisi, Denise F S Petri
Magnetic scaffolds with different charge densities were prepared using magnetic nanoparticles (MNP) and xanthan gum (XG), a negatively charged polysaccharide, or hydroxypropyl methylcellulose (HPMC), an uncharged cellulose ether. XG chains were crosslinked with citric acid (cit), a triprotic acid, whereas HPMC chains were crosslinked either with cit or with oxalic acid (oxa), a diprotic acid. The scaffolds XG-cit, HPMC-cit and HPMC-oxa were characterized by scanning electron microscopy (SEM), inductively coupled plasma atomic emission spectroscopy (ICP-AES), superconducting quantum interference device (SQUID) magnetometry, contact angle and zeta-potential measurements...
May 17, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28533667/octogenarian-liver-grafts-is-their-use-for-transplant-currently-justified
#14
Carlos Jiménez-Romero, Felix Cambra, Oscar Caso, Alejandro Manrique, Jorge Calvo, Alejandro Marcacuzco, Paula Rioja, David Lora, Iago Justo
AIM: To analyse the impact of octogenarian donors in liver transplantation. METHODS: We present a retrospective single-center study, performed between November 1996 and March 2015, that comprises a sample of 153 liver transplants. Recipients were divided into two groups according to liver donor age: recipients of donors ≤ 65 years (group A; n = 102), and recipients of donors ≥ 80 years (group B; n = 51). A comparative analysis between the groups was performed...
May 7, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28526389/citrulline-stimulates-locomotor-activity-in-aged-rats-implication-of-the-dopaminergic-pathway
#15
Christophe Moinard, Laurent Tliba, Jorge Diaz, Servane Le Plénier, Laure Nay, Nathalie Neveux, Luc Cynober, Agathe Raynaud-Simon
OBJECTIVES: A citrulline (CIT)-enriched diet improves locomotor activity in aged rats, but the underlying mechanism is unknown. The aim of this study was to determine the effect of CIT administration on locomotor activity and dopamine activity in healthy aged rats. METHODS: Sixty adult (3-mo-old) and aged (20-mo-old) rats were divided into four groups (n = 15 each) stratified by age (adult versus old) and diet (control versus CIT; i.e., Ad-Control, Ad-CIT, Old-Control, Old-CIT) and fed for 4 d on either a CIT-enriched diet (5 g/kg daily; Ad-CIT and Old-CIT) or an isonitrogeneous control diet (Ad-Control and Old-Control)...
June 2017: Nutrition
https://www.readbyqxmd.com/read/28511010/%C3%AF-extended-and-curved-antiaromatic-polycyclic-hydrocarbons
#16
Junzhi Liu, Ji Ma, Ke Zhang, Prince Ravat, Peter Machata, Stanislav Avdoshenko, Felix Hennersdorf, Hartmut Komber, Wojciech Pisula, Jan J Weigand, Alexey A Popov, Reinhard Berger, Klaus Müllen, Xinliang Feng
Synthesis of antiaromatic polycyclic hydrocarbons (PHs) is challenging because the high energy of their highest occupied molecular orbital and low energy of their lowest unoccupied molecular orbital cause them to be reactive and unstable. In this work, two large antiaromatic acene analogues, namely, cyclopenta[pqr]indeno[2,1,7-ijk]tetraphene (CIT, 1a) and cyclopenta[pqr]indeno[7,1,2-cde]picene (CIP, 1b), as well as a curved antiaromatic molecule with 48 π-electrons, dibenzo[a,c]diindeno[7,1,2-fgh:7',1',2'-mno]phenanthro[9,10-k]tetraphene (DPT, 1c), are synthesized on the basis of the corona of indeno[1,2-b]fluorene...
June 7, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28490094/development-of-monoclonal-antibody-based-elisa-for-the-quantification-of-orange-allergen-cit-s-2-in-fresh-and-processed-oranges
#17
Kyohei Kiyota, Kentaro Kawatsu, Junko Sakata, Masato Yoshimitsu, Kazuhiko Akutsu, Taro Satsuki-Murakami, Masami Ki, Keiji Kajimura, Tetsuo Yamano
The aim of this study was to develop a monoclonal antibody (mAb)-based enzyme-linked immunosorbent assay (ELISA) for the quantification of a major allergen (Cit s 2) in fresh and processed oranges. Purified recombinant Cit s 2 (rCit s 2)-small ubiquitin-like modifier (SUMO) was used for the production of mAbs. In the optimized ELISA, the recovery of rCit s 2 from Navel oranges or orange juice was 107-132%, and the intra- and inter-assay coefficients of variation were 3.1-8.8% and 4.4-11%, respectively. The Cit s 2 content in fresh oranges was determined to be 1,800±430ng/g, while this content was much lower in the processed foods...
October 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28474602/a-highly-sensitive-biosensing-platform-based-on-upconversion-nanoparticles-and-graphene-quantum-dots-for-the-detection-of-ag
#18
Lu He, Lin Yang, Hao Zhu, Wenkui Dong, Yujie Ding, Jun-Jie Zhu
A novel luminescence 'Turn-On' nanoplatform for the sensitive sensing of Ag(+) was fabricated based on luminescence resonance energy transfer technique between sodium citrate functionalized upconversion nanoparticles (Cit-UCNPs, energy donor) and graphene quantum dots (GQDs, energy acceptor). Amino-labeled single-stranded DNA (NH2-ssDNA) containing a number of cytosine (C) was conjugated on the surface of the Cit-UCNPs to capture Ag(+) ions. Due to the π-π stacking interaction between NH2-ssDNA and GQDs, the upconversion luminescence can be quenched...
May 5, 2017: Methods and Applications in Fluorescence
https://www.readbyqxmd.com/read/28468989/citron-kinase-renaissance-of-a-neglected-mitotic-kinase
#19
REVIEW
Pier Paolo D'Avino
Cell division controls the faithful segregation of genomic and cytoplasmic materials between the two nascent daughter cells. Members of the Aurora, Polo and cyclin-dependent (Cdk) kinase families are known to regulate multiple events throughout cell division, whereas another kinase, citron kinase (CIT-K), for a long time has been considered to function solely during cytokinesis, the last phase of cell division. CIT-K was originally proposed to regulate the ingression of the cleavage furrow that forms at the equatorial cortex of the dividing cell after chromosome segregation...
May 3, 2017: Journal of Cell Science
https://www.readbyqxmd.com/read/28467135/using-the-critical-incident-technique-to-measure-long-term-outcomes-of-interprofessional-education
#20
Emily Graybill, Akilah Heggs, Stephen Truscott, Erin Vinoski, Mark Crenshaw, Daniel Crimmins
There is a critical need to develop methods that capture long-term trainee outcomes and link these outcomes to interprofessional education (IPE) to establish the value added from IPE. This article describes the use of the critical incident technique (CIT) to evaluate long-term trainee outcomes attributed to IPE. Critical incidents (CIs) are specific examples of behaviours that occurred within the recent past. Trainees of an IPE programme (n = 24) were interviewed using CIT. Across the trainees, 41 CIs were reported, of which 9 were collapsed due to similarity in theme...
May 3, 2017: Journal of Interprofessional Care
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