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https://www.readbyqxmd.com/read/29454301/heteroassembled-gold-nanoparticles-with-sandwich-immunoassay-lspr-chip-format-for-rapid-and-sensitive-detection-of-hepatitis-b-virus-surface-antigen-hbsag
#1
Jinwoon Kim, Seo Yeong Oh, Shruti Shukla, Seok Bok Hong, Nam Su Heo, Vivek K Bajpai, Hyang Sook Chun, Cheon-Ho Jo, Bong Gill Choi, Yun Suk Huh, Young-Kyu Han
This study aimed to develop a more sensitive method for the detection of hepatitis B surface antigen (HBsAg) using heteroassembled gold nanoparticles (AuNPs). A single layered localized surface plasmon resonance (LSPR) chip format was developed with antigen-antibody reaction-based detection symmetry using AuNPs, which detected HBsAg at 10 pg/mL. To further improve the detection limit, a modified detection format was fabricated by fixing a secondary antibody (to form a heteroassembled sandwich format) to the AuNP monolayer, which enhanced the detection sensitivity by about 100 times...
February 7, 2018: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/29454270/cadmium-induced-stress-response-of-phanerochaete-chrysosporium-during-the-biodegradation-of-2-2-4-4-tetrabromodiphenyl-ether-bde-47
#2
Mi Feng, Hua Yin, Yajuan Cao, Hui Peng, Guining Lu, Zehua Liu, Zhi Dang
Cd-induced stress response of Phanerochaete chrysosporium during the biodegradation of BDE-47 was investigated in this study, with the goal of elucidating the tolerance behavior and the detoxification mechanisms of P. chrysosporium to resist the Cd stress in the course of BDE-47 biodegradation, which has implications for expanding the application of P. chrysosporium in the bioremediation of Cd and BDE-47 combined pollution. The results suggested that single BDE-47 exposure did not induce obvious oxidative stress in P...
February 14, 2018: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/29454235/donor-and-recipient-p450-gene-polymorphisms-influence-individual-pharmacological-effects-of-tacrolimus-in-chinese-liver-transplantation-patients
#3
Jianyu Liu, Yabo Ouyang, Dexi Chen, Bo Yao, Dongdong Lin, Zhiqiang Li, Yunjin Zang, Huan Liu, Xiaoyue Fu
The immunosuppressant drug tacrolimus (Tac) used for the prevention of immunological rejection is a metabolic substrate of cytochrome P450 enzymes. This study was designed to evaluate the short-term and long-term potential influence of single-nucleotide polymorphisms (SNPs) in CYP450 genes of liver transplant (LT) recipients as well as the donors on individual pharmacological effects of Tac and to guide individualized-medication from the perspective of pharmacogenomics. Twenty-one SNPs of the CYP450 gene were genotyped for both recipients and donors in 373 LT patients receiving Tac-based immunosuppressants...
February 14, 2018: International Immunopharmacology
https://www.readbyqxmd.com/read/29454223/attention-as-the-glue-for-object-integration-in-parietal-extinction
#4
Markus Conci, Julia Groß, Ingo Keller, Hermann J Müller, Kathrin Finke
Patients with unilateral, parietal brain damage frequently show visual extinction, which manifests in a failure to identify contralesional stimuli when presented simultaneously with other, ipsilesional stimuli (but full awareness for single stimulus presentations). Extinction reflects an impairment of spatial selective attention, leaving basic preattentive processing unaffected. For instance, access to bilaterally grouped objects is usually spared in extinction, suggesting that grouping occurs at a stage preceding (in the patients: abnormally biased) spatial-attentional selection...
January 31, 2018: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/29454221/-13-c-phenylalanine-breath-test-and-serum-biopterin-in-schizophrenia-bipolar-disorder-and-major-depressive-disorder
#5
Toshiya Teraishi, Masahiro Kajiwara, Hiroaki Hori, Daimei Sasayama, Shinsuke Hidese, Junko Matsuo, Ikki Ishida, Yasuhiro Kajiwara, Yuji Ozeki, Miho Ota, Kotaro Hattori, Teruhiko Higuchi, Hiroshi Kunugi
Phenylalanine is required for the synthesis of the neurotransmitters dopamine, noradrenaline, and adrenaline. The rate-limiting step for phenylalanine metabolism is catalyzed by phenylalanine hydroxylase (PAH) and its cofactor tetrahydrobiopterin. We aimed to detect altered phenylalanine metabolism in major psychiatric disorders using the l-[1- 13 C]phenylalanine breath test ( 13 C-PBT) and serum biopterin levels. We also investigated association of PAH mutations with schizophrenia and phenylalanine metabolism...
February 3, 2018: Journal of Psychiatric Research
https://www.readbyqxmd.com/read/29454212/adsorption-of-sulfamethoxazole-by-magnetic-biochar-effects-of-ph-ionic-strength-natural-organic-matter-and-17%C3%AE-ethinylestradiol
#6
Febelyn Reguyal, Ajit K Sarmah
Recent studies have shown the widespread occurrence of pharmaceuticals in the aquatic environment leading to increasing global concern on their potential adverse effects in the environment and public health. In this study, we evaluated the use of magnetic biochar derived from pine sawdust, one of New Zealand's major wood wastes, to remove an emerging contaminant, sulfamethoxazole (SMX), at different pH, ionic strength, natural organic matter (NOM) and a competing compound, 17α-ethinylestradiol (EE2). In single-solute system, the sorption of SMX onto magnetic biochar was found to be highly pH-dependent and slightly increased with increase in ionic strength...
February 14, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29454174/mastectomy-patterns-but-not-rates-are-changing-in-the-treatment-of-early-breast-cancer-experience-of-a-single-european-institution-on-2315-consecutive-patients
#7
Alessandro Fancellu, Valeria Sanna, Pietrina Cottu, Cladio F Feo, Antonio M Scanu, Giulia Farina, Antonio Bulla, Angela Spanu, Panagiotis Paliogiannis, Alberto Porcu
BACKGROUND: Recent literature reports that rates of mastectomy are increasing in early breast cancer. However, data from European institutions are limited and revealed conflicting results. We report on 15-year trends of mastectomy, mastectomy plus immediate reconstruction and contralateral prophylactic mastectomy (CPM) at an academic institution. METHODS: We identified women diagnosed with unilateral early breast cancer at stage 0-IIa, with tumour size ≤ 4 cm, between 2002 and 2016...
February 14, 2018: Breast: Official Journal of the European Society of Mastology
https://www.readbyqxmd.com/read/29454159/an-aligned-porous-electrospun-fibrous-membrane-with-controlled-drug-delivery-an-efficient-strategy-to-accelerate-diabetic-wound-healing-with-improved-angiogenesis
#8
Xiaozhi Ren, Yiming Han, Jie Wang, Yuqi Jiang, Zhengfang Yi, He Xu, Qinfei Ke
A chronic wound in diabetic patients is usually characterized by poor angiogenesis and delayed wound closure. The exploration of efficient strategy to significantly improve angiogenesis in the diabetic wound bed and thereby accelerate wound healing is still a significant challenge. Herein, we reported a kind of aligned porous poly (L-lactic acid) (PLLA) electrospun fibrous membranes containing dimethyloxalylglycine (DMOG)-loaded mesoporous silica nanoparticles (DS) for diabetic wound healing. The PLLA electrospun fibers aligned in a single direction and there were ellipse-shaped nano-pores in situ generated onto the surface of fibers, while the DS were well distributed in the fibers and the DMOG as well as Si ion could be controlled released from the nanopores on the fibers...
February 14, 2018: Acta Biomaterialia
https://www.readbyqxmd.com/read/29454150/assessment-of-cervical-stiffness-in-axial-rotation-among-chronic-neck-pain-patients-a-trial-in-the-framework-of-a-non-manipulative-osteopathic-management
#9
P-M Dugailly, A Coucke, W Salem, V Feipel
BACKGROUND: Cervical stiffness is a clinical feature commonly appraised during the functional examination of cervical spine. Measurements of cervical stiffness in axial rotation have not been reported for patients with neck pain. The purpose of this study was to investigate cervical spine stiffness in axial rotation among neck pain patients and asymptomatic subjects, and to analyze the impact of osteopathic management. METHODS: Thirty-five individuals (17 patients) were enrolled...
February 12, 2018: Clinical Biomechanics
https://www.readbyqxmd.com/read/29454141/a-cluster-randomized-pilot-trial-of-a-tailored-worksite-smoking-cessation-intervention-targeting-hispanic-latino-construction-workers-intervention-development-and-research-design
#10
Taghrid Asfar, Alberto J Caban-Martinez, Laura A McClure, Estefania C Ruano-Herreria, Danielle Sierra, G Gilford Clark, Daniel Samano, Noella A Dietz, Kenneth D Ward, Kristopher L Arheart, David J Lee
Construction workers have the highest smoking rate among all occupations (39%). Hispanic/Latino workers constitute a large and increasing group in the US construction industry (over 2.6 million; 23% of all workers). These minority workers have lower cessation rates compared to other groups due to their limited access to cessation services, and lack of smoking cessation interventions adapted to their culture and work/life circumstances. Formative research was conducted to create an intervention targeting Hispanic/Latino construction workers...
February 14, 2018: Contemporary Clinical Trials
https://www.readbyqxmd.com/read/29454135/short-term-outcomes-following-posterior-cervical-fusion-among-octogenarians-with-cervical-spondylotic-myelopathy-a-nsqip-database-analysis
#11
Caroline E Vonck, Joseph E Tanenbaum, Thomas T Bomberger, Edward C Benzel, Jason W Savage, Iain H Kalfas, Thomas E Mroz, Michael P Steinmetz
BACKGROUND: Context: Degenerative changes in the cervical spine occur in an age-dependent manner. As the U.S. population continues to age, the incidence of age-dependent, multi-level, degenerative cervical pathologies is expected to increase. Similarly, the average age of patients with cervical spondylotic myelopathy (CSM) will likely trend upward. Posterior cervical fusion (PCF) is often the treatment modality of choice in the management of multi-level cervical spine disease. Although outcomes following anterior cervical fusion for degenerative disease have been studied among older patients (aged 80 years and older), it is unknown if these results extend to octogenarian patients undergoing PCF for the surgical management of CSM...
February 14, 2018: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/29454134/back-pain-improves-significantly-following-discectomy-for-lumbar-disc-herniation
#12
R Kirk Owens, Leah Y Carreon, Erica F Bisson, Mohamad Bydon, Eric A Potts, Steven D Glassman
BACKGROUND CONTEXT: Although lumbar disc herniation (LDH) classically presents with lower extremity radiculopathy, there are patients who have substantial associated back pain PURPOSE: To determine if patients with lumbar disc herniation (LDH) with substantial back pain improve with decompression alone. STUDY DESIGN: Longitudinal observational cohort PATIENT SAMPLE: Patients enrolled in the Quality and Outcomes Database (QOD) with LDH and a baseline back pain score ≥ 5 of 10 who underwent 1 or 2-level lumbar discectomy only OUTCOME MEASURES: Back and leg pain scores (0-10), Oswestry Disability Index (ODI), and EuroQoL 5D (EQ-5D)...
February 14, 2018: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/29454126/iatrogenic-spondylolisthesis-following-open-lumbar-laminectomy-case-series-and-review-of-the-literature
#13
Seba Ramhmdani, Yuanxuan Xia, Risheng Xu, Thomas Kosztowski, Daniel Sciubba, Timothy Witham, Ali Bydon
OBJECTIVE: The diagnosis and surgical management of post-laminectomy spondylolisthesis in patients without pre-operative instability is presented with a review of relevant literature. METHODS: We reviewed the medical records and radiographic studies of 105 patients who underwent first-time bilateral 1-4 level open laminectomies for degenerative lumbar disease at a single academic institution. Patients who initially presented with listhesis and had additional discectomy or fusion procedures were excluded...
February 14, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29454124/brainstem-dose-constraints-in-non-isometric-radiosurgical-treatment-planning-of-trigeminal-neuralgia-a-single-institution-experience
#14
Michael Zhang, Layton A Lamsam, Matthew K Schoen, Swapnil S Mehta, Geoffrey Appelboom, John K Adler, Scott G Soltys, Steven D Chang
INTRODUCTION: CyberKnife stereotactic radiosurgery (SRS) for trigeminal neuralgia (TGN) administers non-isometric, conformational high-dose radiation to the trigeminal nerve with risk of subsequent hypoesthesia. METHODS: We performed a retrospective, single-institution review of 66 TGN patients, treated by CyberKnife, to compare outcomes from two distinct treatment periods (standard dosing, N = 38 and reduced dosing, N = 28). Standard and reduced dosing permitted a maximum brainstem dose of 45 Gy and 25 Gy, respectively, each with a prescription dose of 60 Gy...
February 14, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29454121/complications-of-impulse-generator-exchange-surgery-for-deep-brain-stimulation-a-single-centre-retrospective-study
#15
Ann-Kristin Helmers, Isabel Lübbing, Falk Birkenfeld, Karsten Witt, Michael Synowitz, Hubertus Maximilian Mehdorn, Daniela Falk
OBJECTIVE: Non-rechargeable deep brain stimulation (DBS) impulse generators (IG) with a low or empty battery status require surgical IG exchange several years after initial implantation. Complication rates in patients undergoing DBS surgery range from 7.6% to 25.3%. The aim of this study was to investigate the complication rates after IG exchange surgery and to identify risk factors for complications. METHODS: We retrospectively analysed complications following IG exchange surgery from 2008 to 2015 in a single-centre university hospital setting...
February 14, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29454113/identification-of-two-novel-cress-dna-viruses-associated-with-an-avipoxvirus-lesion-of-a-blue-and-gray-tanager-thraupis-episcopus
#16
Michaël A J Moens, Javier Pérez-Tris, Martí Cortey, Laura Benítez
The discovery of circular rep-encoding single stranded (CRESS) DNA viruses has increased spectacularly over the past decade. They represent the smallest animal viruses known worldwide infecting a wide variety of invertebrates and vertebrates in different natural and human-made environments. The extremely low similarity of nucleotide and protein sequences among different CRESS DNA genomes has challenged their classification. Moreover, the existence of capsid proteins (Cp) remains difficult to demonstrate which is crucial to understand the structural properties of these viruses...
February 14, 2018: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/29454039/effect-of-long-term-selenium-supplementation-on-mortality-results-from-a-multiple-dose-randomised-controlled-trial
#17
REVIEW
Margaret P Rayman, Kristian Hillert Winther, Roberto Pastor-Barriuso, Frederick Cold, Marianne Thvilum, Saverio Stranges, Eliseo Guallar, Søren Cold
BACKGROUND: Selenium, an essential trace element, is incorporated into selenoproteins with a wide range of health effects. Selenoproteins may reach repletion at a plasma selenium concentration of ~125µg/L, at which point the concentration of selenoprotein P reaches a plateau; whether sustained concentrations higher than this are beneficial, or indeed detrimental, is unknown. OBJECTIVE: In a population of relatively low selenium status, we aimed to determine the effect on mortality of long-term selenium supplementation at different dose levels...
February 14, 2018: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/29454023/interaction-between-hypothermia-and-delayed-mesenchymal-stem-cell-therapy-in-neonatal-hypoxic-ischemic-brain-injury
#18
Josephine Herz, Christian Köster, Barbara S Reinboth, Mark Dzietko, Wiebke Hansen, Hemmen Sabir, Cindy van Velthoven, Ivo Bendix, Ursula Felderhoff-Müser
Acute hypothermia treatment (HT) is the only clinically established intervention following neonatal hypoxic-ischemic brain injury. However, almost half of all cooled infants still die or suffer from long-lasting neurological impairments. Regenerative therapies, such as mesenchymal stem cells (MSC) appear promising as adjuvant therapy. In the present study, we hypothesized that HT combined with delayed MSC therapy results in augmented protection, improving long-term neurological outcome. Postnatal day 9 (P9) C57BL/6 mice were exposed to hypoxia-ischemia followed by 4 hours HT...
February 14, 2018: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/29454010/enhancing-creative-cognition-with-a-rapid-right-parietal-neurofeedback-procedure
#19
Sergio Agnoli, Marco Zanon, Serena Mastria, Alessio Avenanti, Giovanni Emanuele Corazza
The present article describes an innovative neurofeedback training (NFT) procedure aimed at increasing creative cognition through the enhancement of specific brain activities previously associated with divergent thinking. We designed and tested two NFT protocols based on training alpha and beta EEG oscillations selectively measured over the right parietal region. A total of 80 participants were involved, 40 in the alpha NFT protocol and 40 in the beta NFT protocol. The NFT loop was closed on a video stream that would advance only when oscillation power exceeded a normalized threshold...
February 14, 2018: Neuropsychologia
https://www.readbyqxmd.com/read/29454009/24-vs-72-hours-of-hypothermia-for-pediatric-cardiac-arrest-a-pilot-randomized-controlled-trial
#20
Ericka L Fink, Robert S B Clark, Rachel P Berger, Anthony Fabio, Derek C Angus, R Scott Watson, John J Gianakas, Ashok Panigrahy, Clifton W Callaway, Michael J Bell, Patrick M Kochaneka
AIM: Children surviving cardiac arrest (CA) lack proven neuroprotective therapies. The role of biomarkers in assessing response to interventions is unknown. We hypothesized that 72 versus 24 h of hypothermia (HT) would produce more favorable biomarker profiles after pediatric CA. METHODS: This single center pilot randomized trial tested HT (33 ± 1 °C) for 24 vs. 72 h in 34 children with CA. Children comatose after return of circulation aged 1 week to 17 years and treated with HT by their physician were eligible...
February 14, 2018: Resuscitation
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