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https://www.readbyqxmd.com/read/28443122/membrane-proteomics-of-arabidopsis-glucosinolate-mutants-cyp79b2-b3-and-myb28-29
#1
Islam Mostafa, Mi-Jeong Yoo, Ning Zhu, Sisi Geng, Craig Dufresne, Maged Abou-Hashem, Maher El-Domiaty, Sixue Chen
Glucosinolates (Gls) constitute a major group of natural metabolites represented by three major classes (aliphatic, indolic and aromatic) of more than 120 chemical structures. In our previous work, soluble proteins and metabolites in Arabidopsis mutants deficient of aliphatic (myb28/29) and indolic Gls (cyp79B2B3) were analyzed. Here we focus on investigating the changes at the level of membrane proteins in these mutants. Our LC/MS-MS analyses of tandem mass tag (TMT) labeled peptides derived from the cyp79B2/B3 and myb28/29 relative to wild type resulted in the identification of 4,673 proteins, from which 2,171 are membrane proteins...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28441901/patient-emergency-assessment-following-deliberate-self-poisoning-with-benzodiazepines-can-cognitive-markers-predict-recall-of-the-psychiatric-interview-a-pilot-study
#2
J Salles, J Pariente, C Dimeglio, P Gandia, B Lemesle, A Giron, N Franchitto, L Schmitt, E Very
STUDY HYPOTHESIS: In cases of deliberate self-poisoning (DSP), patients often ingest benzodiazepines (BZDs), known to alter memory. Experts recommend recovery of the patient's cognitive capacity before psychiatric assessment. Unfortunately, there is no validated tool in common practice to assess whether sufficient cognitive recovery has occurred after DSP with BZDs to ensure patient memory of the assessment. OBJECTIVE: The aim of the study was to identify cognitive functions and markers which predict preserved memory of the mental health care plan proposed at the emergency department after DSP...
April 1, 2017: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/28440093/turmeric-curcuma-longa-l-extract-may-prevent-the-deterioration-of-spatial-memory-and-the-deficit-of-estimated-total-number-of-hippocampal-pyramidal-cells-of-trimethyltin-exposed-rats
#3
Sapto Yuliani, Mustofa, Ginus Partadiredja
CONTEXT: Protection of neurons from degeneration is an important preventive strategy for dementia. Much of the dementia pathology implicates oxidative stress pathways. Turmeric (Curcuma longa L.) contains curcuminoids which has anti-oxidative and neuro-protective effects. These effects are considered to be similar to those of citicoline which has been regularly used as one of standard medications for dementia. OBJECTIVE: This study aimed at investigating the effects of turmeric rhizome extract on the hippocampus of trimethyltin (TMT)-treated Sprague-Dawley rats...
April 25, 2017: Drug and Chemical Toxicology
https://www.readbyqxmd.com/read/28421004/neurosensory-and-cognitive-modifications-in-europe-s-toughest-randoraid-competition-the-transpyr%C3%A3-n%C3%A3-a-extreme-study
#4
Alessandro Tonacci, Simona Mrakic-Sposta, Kristian Ujka, Francesco Sansone, Alice Ferrisi, Guido Giardini, Raffaele Conte, Lorenza Pratali
Introduction: Given the wide proliferation of ultra-long endurance races, it is important to understand the physiological response of the athletes to improve their safety. We evaluated the cognitive and neurosensory effects on ultra-endurance athletes during the Transpyrénéa (866 Km, 65,000 m positive slope), held on the French Pyrenees. Materials and Methods: 40 athletes were enrolled (age 43.8 ± 8.8 years; 36 males). Olfactory and cognitive tests were performed before the race (T0, n = 40), at 166 kms (T1, n = 28), at 418 kms (T2, n = 20), and after the race (T3, 866 kms, n = 13)...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28420979/evidence-for-a-selectively-regulated-prioritization-shift-depending-on-walking-situations-in-older-adults
#5
Dina Salkovic, Markus A Hobert, Carolin Bellut, Florian Funer, Sarah Renno, Linda Haertner, Sandra E Hasmann, Jana Staebler, Johanna Geritz, Ulrike Suenkel, Andreas J Fallgatter, Gerhard W Eschweiler, Daniela Berg, Walter Maetzler
Background: Older adults have increased risks of balance issues and falls when walking and performing turns in daily situations. Changes of prioritization during different walking situations associated with dual tasking may contribute to these deficits. The objective of this study was therefore to investigate whether older adults demonstrate changes of prioritization during different walking paths. Methods: In total, 1,054 subjects with an age range from 50 to 83 years were selected from the first follow-up visit of the TREND (Tuebinger evaluation of Risk factors for Early detection of Neurodegenerative Disorders) study...
2017: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/28418257/investigating-acquisition-performance-on-the-orbitrap-fusion-when-using-tandem-ms-ms-ms-scanning-with-isobaric-tags
#6
Christopher S Hughes, Victor Spicer, Oleg V Krokhin, Gregg B Morin
Methods for isobaric-tagged peptide analysis (e.g., TMT, iTRAQ), such as the synchronous precursor selection (SPS) tandem MS/MS/MS (MS(3)) approach, enable maintenance of reporter ion accuracy and precision by reducing the ratio compression caused by coisolated precursor ions. However, the decreased throughput of the MS(3) approach necessitates careful optimization of acquisition strategies and methods to ensure maximal proteome coverage. We present a systematic analysis of acquisition parameters used to analyze isobaric-tagged peptide samples on current generation Orbitrap mass spectrometer (MS) hardware...
April 20, 2017: Journal of Proteome Research
https://www.readbyqxmd.com/read/28418254/evaluating-the-characteristics-of-reporter-ion-signal-acquired-in-the-orbitrap-analyzer-for-isobaric-mass-tag-proteome-quantification-experiments
#7
Christopher S Hughes, Chenchen Zhu, Victor Spicer, Oleg V Krokhin, Gregg B Morin
Multiplexed quantification with isobaric chemical tags (e.g., TMT, iTRAQ) provides a robust and efficient means to comparatively examine proteome dynamics between several biological states using a mass spectrometer (MS). The quantitative nature of isobaric tags necessitates strict validation of the observed ion signals in the chosen MS detector before differential patterns are extracted between biological states. We present an in-depth analysis of isobaric tag data acquired on current generation Orbitrap MS hardware to illustrate pitfalls in acquisition settings that can negatively impact results...
April 20, 2017: Journal of Proteome Research
https://www.readbyqxmd.com/read/28413642/ginsenoside-rd-as-a-potential-neuroprotective-agent-prevents-trimethyltin-injury
#8
Jingang Hou, Jianjie Xue, Mira Lee, Changkeun Sung
Trimethyltin (TMT) is a potent neurotoxicant that affects various regions within the central nervous system, including the neocortex, cerebellum, and hippocampus. In the present study, ginsenoside Rd was investigated as a candidate neuroprotective agent in a primary hippocampal neuron culture and mouse models. TMT induced neurotoxicity in a seven-day primary hippocampal neuron culture in a dose-dependent manner (2.5-10 µM). However, pre-treatment with 20 µg/ml ginsenoside Rd for 24 h reversed the toxic action...
April 2017: Biomedical Reports
https://www.readbyqxmd.com/read/28412065/comparative-effectiveness-of-trimodal-therapy-versus-radical-cystectomy-for-localized-muscle-invasive-urothelial-carcinoma-of-the-bladder
#9
Thomas Seisen, Maxine Sun, Stuart R Lipsitz, Firas Abdollah, Jeffrey J Leow, Mani Menon, Mark A Preston, Lauren C Harshman, Adam S Kibel, Paul L Nguyen, Joaquim Bellmunt, Toni K Choueiri, Quoc-Dien Trinh
Given the lack of randomized evidence comparing trimodal therapy (TMT) to radical cystectomy (RC) for muscle-invasive urothelial carcinoma of the bladder (UCB), we performed an observational cohort study to examine the comparative effectiveness of these two definitive treatments. Within the National Cancer Data Base (2004-2011),we identified 1257 (9.8%) and 11 586 (90.2%) patients who received TMT and RC, respectively. Inverse probability of treatment weighting (IPTW)-adjusted Kaplan-Meier analysis showed that median overall survival (OS) was similar between the TMT (40 mo, 95% confidence interval [CI] 34-46) and RC groups (43 mo 95% CI 41-45; p=0...
April 12, 2017: European Urology
https://www.readbyqxmd.com/read/28410011/propensity-score-analysis-of-radical-cystectomy-versus-bladder-sparing-trimodal-therapy-in-the-setting-of-a-multidisciplinary-bladder-cancer-clinic
#10
Girish S Kulkarni, Thomas Hermanns, Yanliang Wei, Bimal Bhindi, Raj Satkunasivam, Paul Athanasopoulos, Peter J Bostrom, Cynthia Kuk, Kathy Li, Arnoud J Templeton, Srikala S Sridhar, Theodorus H van der Kwast, Peter Chung, Robert G Bristow, Michael Milosevic, Padraig Warde, Neil E Fleshner, Michael A S Jewett, Shaheena Bashir, Alexandre R Zlotta
Purpose Multidisciplinary management improves complex treatment decision making in cancer care, but its impact for bladder cancer (BC) has not been documented. Although radical cystectomy (RC) currently is viewed as the standard of care for muscle-invasive bladder cancer (MIBC), radiotherapy-based, bladder-sparing trimodal therapy (TMT) that combines transurethral resection of bladder tumor, chemotherapy for radiation sensitization, and external beam radiotherapy has emerged as a valid treatment option. In the absence of randomized studies, this study compared the oncologic outcomes between patients treated with RC or TMT by using a propensity score matched-cohort analysis...
April 14, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28409621/ratiometric-singlet-oxygen-detection-in-water-using-acene-doped-conjugated-polymer-nanoparticles
#11
Fanny Frausto, Samuel W Thomas
While fluorescent probes for the detection of singlet oxygen (1O2) have been an active area of research, most such probes rely upon change in intensity of a single band. Herein we report a FRET-based, 1O2-sensitive aqueous suspension of conjugated polymer nanoparticles (CPNs) comprising the energy donating host polymer poly[{9,9-dioctyl-2,7-divinylene-fluorenylene}-alt-co-{2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylene}] (PFPV) doped with an energy acceptor, the 1O2-sensitive thienoacene 5,12-bis(4-methoxyphenyl)-2-butyltetraceno[2,3-b]thiophene (DA-TMT)...
April 14, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28409050/correlation-of-mri-visual-scales-with-neuropsychological-profile-in-mild-cognitive-impairment-of-parkinson-s-disease
#12
Luiz Felipe Vasconcellos, João Santos Pereira, Marcelo Adachi, Denise Greca, Manuela Cruz, Ana Lara Malak, Helenice Charchat-Fichman, Mariana Spitz
Few studies have evaluated magnetic resonance imaging (MRI) visual scales in Parkinson's disease-Mild Cognitive Impairment (PD-MCI). We selected 79 PD patients and 92 controls (CO) to perform neurologic and neuropsychological evaluation. Brain MRI was performed to evaluate the following scales: Global Cortical Atrophy (GCA), Fazekas, and medial temporal atrophy (MTA). The analysis revealed that both PD groups (amnestic and nonamnestic) showed worse performance on several tests when compared to CO. Memory, executive function, and attention impairment were more severe in amnestic PD-MCI group...
2017: Parkinson's Disease
https://www.readbyqxmd.com/read/28402078/total-atherosclerotic-burden-measured-by-magnetic-resonance-imaging-is-related-to-five-year-decline-in-cognitive-function
#13
Tomas Hansen, Lena Kilander, Håkan Ahlström, Lars Lind
OBJECTIVE: The aim of this study was to explore whether total atherosclerotic burden is related to future decline in performance on cognitive tests. METHODS: The total atherosclerotic burden (TAS) was assessed by whole-body magnetic resonance angiography (WBMRA) in 305 subjects at age 70 in the study Prospective Investigation of Vasculature in Uppsala Seniors (PIVUS). The mini-mental state examination (MMSE) and trail making tests (TMT) A and B were evaluated at ages 75 and 80 in 190 of those subjects...
April 12, 2017: Clinical Physiology and Functional Imaging
https://www.readbyqxmd.com/read/28399854/improved-n-butanol-production-via-co-expression-of-membrane-targeted-tilapia-metallothionein-and-the-clostridial-metabolic-pathway-in-escherichia-coli
#14
Wei-Chih Chin, Kuo-Hsing Lin, Chun-Chi Liu, Kenji Tsuge, Chieh-Chen Huang
BACKGROUND: N-Butanol has favorable characteristics for use as either an alternative fuel or platform chemical. Bio-based n-butanol production using microbes is an emerging technology that requires further development. Although bio-industrial microbes such as Escherichia coli have been engineered to produce n-butanol, reactive oxygen species (ROS)-mediated toxicity may limit productivity. Previously, we show that outer-membrane-targeted tilapia metallothionein (OmpC-TMT) is more effective as an ROS scavenger than human and mouse metallothioneins to reduce oxidative stress in the host cell...
April 11, 2017: BMC Biotechnology
https://www.readbyqxmd.com/read/28395773/improving-data-quality-and-preserving-hcd-generated-reporter-ions-with-ethcd-for-isobaric-tag-based-quantitative-proteomics-and-proteome-wide-ptm-studies
#15
Qing Yu, Xudong Shi, Yu Feng, K Craig Kent, Lingjun Li
Mass spectrometry (MS)-based isobaric labeling has undergone rapid development in recent years due to its capability for high throughput quantitation. Apart from its originally designed use with collision-induced dissociation (CID) and higher-energy collisional dissociation (HCD), isobaric tagging technique could also work with electron-transfer dissociation (ETD), which provides complementarity to CID and is preferred in sequencing peptides with post-translational modifications (PTMs). However, ETD suffers from long reaction time, reduced duty cycle and bias against peptides with lower charge states...
May 22, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/28392957/boswellic-acid-improves-cognitive-function-in-a-rat-model-through-its-antioxidant-activity-neuroprotective-effect-of-boswellic-acid
#16
Saeedeh Ebrahimpour, Mehdi Fazeli, Soghra Mehri, Mahnaz Taherianfard, Hossein Hosseinzadeh
OBJECTIVES: Boswellic acid (BA), a compound isolated from the gum-resin of Boswellia carterii, is a pentacyclic terpenoid that is active against many inflammatory diseases, including cancer, arthritis, chronic colitis, ulcerative colitis, Crohn's disease, and memory impairment, but the mechanism is poorly understood. This study investigated the effects of boswellic acid on spatial learning and memory impairment induced by trimethyltin (TMT) in Wistar rats. METHODS: Forty male Wistar rats were randomly divided into 5 groups: Normal group, TMT-administrated rats (8...
March 2017: Journal of Pharmacopuncture
https://www.readbyqxmd.com/read/28388550/comparison-of-outcomes-between-trimodal-therapy-and-radical-cystectomy-in-muscle-invasive-bladder-cancer-a-propensity-score-matching-analysis
#17
Yeon Joo Kim, Sang Jun Byun, Hanjong Ahn, Choung-Soo Kim, Beom-Sik Hong, Sangjun Yoo, Jae-Lyun Lee, Young Seok Kim
Although radical cystectomy (RC) is considered as the standard therapy for muscle-invasive bladder cancer (MIBC), trimodal therapy (TMT) combining transurethral resection of the tumor with radiotherapy and chemotherapy is increasingly recommended as an alternative approach for bladder preservation. In the absence of randomized trials, we compared the clinical outcomes between RC and TMT using propensity score matching with 50 patients in the RC arm and 29 patients in the TMT arm. With respective median follow-up periods of 23 and 32 months for the RC and TMT groups, 5-year distant metastasis-free survival (58% vs...
March 25, 2017: Oncotarget
https://www.readbyqxmd.com/read/28382375/-proximal-corrective-osteotomy-correction-of-hallux-valgus-deformity
#18
M Thomas, M Jordan
Severe symptomatic hallux valgus deformities are usually not treatable with conservative methods in the long-term. Surgical treatment currently aims for mechanical restitution of the first ray with preserved mobility of the first metatarsophalangeal (MTP 1) joint and with low risk of recurrence after surgery. Keeping these aims in mind the surgical methods consist of osteotomy at the proximal part of the first metatarsal bone with a high potential for correction of the deformity. Surgical interventions at the midshaft level of the first metatarsal are only useful if the anatomical shape of the metatarsal shows a wide shaft, which allows a large shift in the osteotomy...
April 5, 2017: Der Orthopäde
https://www.readbyqxmd.com/read/28365808/limited-benefit-of-targeted-molecular-therapy-for-inferior-vena-cava-thrombus-associated-with-renal-cell-carcinoma
#19
Hironori Fukuda, Tsunenori Kondo, Toshio Takagi, Jumpei Iizuka, Yoji Nagashima, Kazunari Tanabe
BACKGROUND: The clinical benefit of targeted molecular therapy (TMT) for an inferior vena cava (IVC) tumor thrombus associated with renal cell carcinoma (RCC) is unclear. The aim of the present study was to assess the change in IVC thrombus height during TMT and to identify the factors associated with the effect of TMT on an IVC thrombus in RCC patients. METHODS: The present study retrospectively analyzed 21 patients with an IVC thrombus who were treated with TMT at our hospital...
April 1, 2017: International Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28361194/-lapidus-arthrodesis
#20
C Plaaß, L Claaßen, S Ettinger, K Daniilidis, C Stukenborg-Colsman
The tarso-metatarsal 1 joint (TMT-I) arthrodesis is a treatment option or moderate to severe hallux valgus (HV) deformities. Instability of the TMT1 joint is still a debatable indication. Using stable osteosynthesis techniques allows early postoperative weight bearing. Plantar plating combined with a lag screw is the biomechanical most stable construct. An additional intermetatarsal screw can improve the horizontal stability. Clinical results are good and radiological parameters stay constant, even in the long term...
March 30, 2017: Der Orthopäde
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