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https://www.readbyqxmd.com/read/28643305/-interventional-therapy-of-colorectal-liver-metastasis
#1
Qi Zhang, Gaojun Teng
Colorectal liver metastasis (CRLM) is one of the most difficult and key points in the treatment of colorectal cancer. Approximately 50% to 60% of patients diagnosed as colorectal cancer develops metastasis, and 80% to 90% of CRLM is unresectable. Surgical resection is the first-line treatment for CRLM, while it is only suitable for about 15% patients. Systemic chemotherapy can prolong the survival of CRLM patients, however, a part of CRLM patients are resistant to chemotherapy. With the development of technology and the update of clinical evidence, individual therapy with target drugs and multidisciplinary treatment (MDT) have became a tendency, and minimally invasive interventional therapy has gained more acceptance in the MDT mode of the treatment for CRLM...
June 25, 2017: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/28642716/effects-of-acute-hypoxia-and-reoxygenation-on-physiological-and-immune-responses-and-redox-balance-of-wuchang-bream-megalobrama-amblycephala-yih-1955
#2
Nan Chen, Meng Wu, Guo-Pan Tang, Hui-Juan Wang, Chun-Xiao Huang, Xin-Jie Wu, Yan He, Bao Zhang, Cui-Hong Huang, Hong Liu, Wei-Min Wang, Huan-Ling Wang
To study Megalobrama amblycephala adaption to water hypoxia, the changes in physiological levels, innate immune responses, redox balance of M.amblycephala during hypoxia were investigated in the present study. When M. amblycephala were exposed to different dissolved oxygen (DO) including control (DO: 5.5 mg/L) and acute hypoxia (DO: 3.5 and 1.0 mg/L, respectively), hemoglobin (Hb), methemoglobin (MetHb), glucose, Na(+), succinatedehydrogenase (SDH), lactate, interferon alpha (IFNα), and lysozyme (LYZ), except hepatic glycogen and albumin gradually increased with the decrease of DO level...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28636169/a-novel-double-nucleotide-variant-in-the-ferritin-l-iron-responsive-element-in-a-finnish-patient-with-hereditary-hyperferritinaemia-cataract-syndrome
#3
Roosa-Maria Mattila, Annele Sainio, Marketta Järveläinen, Juha Pursiheimo, Hannu Järveläinen
PURPOSE: To present a novel Finnish double nucleotide variant in the iron-responsive element (IRE) of the ferritin L-chain gene (FTL) leading to hyperferritinaemia-cataract syndrome (HHCS). METHODS: Genomic DNA extracted from peripheral blood leucocytes and synthetized with three different primers flanking the IRE in the FTL 5'-untranslated region of the FTL was used in polymerase chain reaction (PCR). Thereafter, Sanger sequencing was performed on the 487-bp and 602-bp PCR amplification products with specific primers to reveal FTL IRE mutations...
June 21, 2017: Acta Ophthalmologica
https://www.readbyqxmd.com/read/28633417/polypyrimidine-tract-binding-protein-ptb-and-ptb-associated-splicing-factor-in-cvb3-infection-an-itaf-for-an-itaf
#4
Pratik Dave, Biju George, Divya Khandige Sharma, Saumitra Das
The 5΄ UTR of Coxsackievirus B3 (CVB3) contains internal ribosome entry site (IRES), which allows cap-independent translation of the viral RNA and a 5΄-terminal cloverleaf structure that regulates viral replication, translation and stability. Here, we demonstrate that host protein PSF (PTB associated splicing factor) interacts with the cloverleaf RNA as well as the IRES element. PSF was found to be an important IRES trans acting factor (ITAF) for efficient translation of CVB3 RNA. Interestingly, cytoplasmic abundance of PSF protein increased during CVB3 infection and this is regulated by phosphorylation status at two different amino acid positions...
June 15, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28631530/intentional-preparation-of-auditory-attention-switches-explicit-cueing-and-sequential-switch-predictability
#5
Julia C Seibold, Sophie Nolden, Josefa Oberem, Janina Fels, Iring Koch
In an auditory attention-switching paradigm, participants heard two simultaneously spoken number-words, each presented to one ear, and decided if the target number was smaller or larger than five by pressing a left or right key. An instructional cue in each trial indicated which feature had to be used to identify the target-number (e.g. female voice). Auditory attention-switch costs were found when this feature changed compared to when it repeated in two consecutive trials. Earlier studies employing this paradigm showed mixed results when they examined whether such cued auditory attention-switches can be prepared actively during the cue-stimulus-interval...
June 20, 2017: Quarterly Journal of Experimental Psychology: QJEP
https://www.readbyqxmd.com/read/28629118/long-term-dexamethasone-exposure-down-regulates-hepatic-tfr1-and-reduces-liver-iron-concentration-in-rats
#6
Huifang Li, Shuxia Jiang, Chun Yang, Shu Yang, Bin He, Wenqiang Ma, Ruqian Zhao
Exposure to stress is known to cause hepatic iron dysregulation, but the relationship between prolonged stress and liver iron metabolism is not yet fully understood. Thirty 13-week-old female Sprague-Dawley rats were randomly divided into two groups, as follows: the control group (saline-injection) and the dexamethasone group (Dexamethasone (Dex)-injection 0.1 mg/kg/day). After the 21-day stress trial, the results showed that chronic Dex administration not only impaired serum corticosterone (p = 0.00) and interleukin-6 (IL-6) (p = 0...
June 17, 2017: Nutrients
https://www.readbyqxmd.com/read/28628737/analysis-of-structure-activity-relationships-based-on-the-hcv-sliib-ires-rna-targeting-gghyrfk-cu-complex
#7
Martin J Ross, Insiya Fidai, James Allan Cowan
New therapeutics for the targeting of the hepatitis C virus have been released in recent years. Although these therapies are less prone to resistance, they are still administered in cocktails as a combination of drugs targeting various aspects of the viral life cycle. Herein, we aim to contribute to an arsenal of new HCV therapeutics by targeting HCV internal ribosomal entry sequence (IRES) RNA via development of catalytic metallodrugs that function to degrade rather than inhibit the target molecule. Based on a previously characterized HCV IRES stem-loop IIb RNA-targeting metallopeptide Cu-GGHYrFK (1-Cu), an all L-analogue (3-Cu) and a series of additional complexes with single alanine substitutions in the targeting domain were prepared and screened to determine the influence each amino acid side-chain on RNA localization and recognition, and catalytic reactivity toward the RNA...
June 19, 2017: Chembiochem: a European Journal of Chemical Biology
https://www.readbyqxmd.com/read/28625847/hnrnp-a1-alters-the-structure-of-a-conserved-enterovirus-ires-domain-to-stimulate-viral-translation
#8
Michele Tolbert, Christopher E Morgan, Marvin Pollum, Carlos E Crespo-Hernández, Mei-Ling Li, Gary Brewer, Blanton S Tolbert
Enteroviruses use a type I IRES structure to facilitate protein synthesis and promote genome replication. Type I IRES elements require auxiliary host proteins to organize RNA structure for 40S ribosomal subunit assembly. Heterogeneous nuclear ribonucleoprotein A1 stimulates Enterovirus 71 (EV71) translation in part through specific interactions with its stem loop II (SLII) IRES domain. Here, we determined a conjoined NMR-SAXS structure of the EV71 SLII domain and a mutant that significantly attenuates viral replication by abrogating hnRNP A1 interactions...
June 15, 2017: Journal of Molecular Biology
https://www.readbyqxmd.com/read/28619380/early-intra-articular-corticosteroid-injection-improves-pain-and-function-in-adhesive-capsulitis-of-shoulder-1-year-retrospective-longitudinal-study
#9
Jung Hwan Ahn, Doo-Hyung Lee, Hyuncheol Kang, Michael Y Lee, Dae Ryong Kang, Seung-Hyun Yoon
BACKGROUND: Intra-articular corticosteroid injection is a commonly used therapy for adhesive capsulitis, but not enough studies exist on the optimal timing of the injection. OBJECTIVE: To determine whether intra-articular corticosteroid injection has better outcomes in patients with earlier stage than later stage of adhesive capsulitis. STUDY DESIGN: Retrospective longitudinal study SETTING: University-affiliated tertiary care hospital. PARTICIPANTS: Primary adhesive capsulitis patients (n=339) who were unresponsive to at least 1 month of conservative treatment and who had ultrasound-guided corticosteroid injection...
June 12, 2017: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/28618058/detection-of-iron-restriction-in-anaemic-and-non-anaemic-patients-new-diagnostic-approaches
#10
Lothar Thomas, Christian Thomas
OBJECTIVE: The aim of this study was to detect iron restriction in non-anaemic patients and iron-restricted erythropoiesis (IRE) in patients with anaemia. METHOD: Haematologic indices and biochemical markers of iron deficiency (ID) were determined using the clinically accepted cut-off level for serum ferritin of ≤30 μg/l as reference of ID. To evaluate the prevalence of iron restriction and IRE in patients with higher ferritin levels we used the thresholds of the markers of ID as reference...
June 15, 2017: European Journal of Haematology
https://www.readbyqxmd.com/read/28613837/artificial-off-riboswitches-that-downregulate-internal-ribosome-entry-without-hybridization-switches-in-a-eukaryotic-cell-free-translation-system
#11
Atsushi Ogawa, Hiroki Masuoka, Tsubasa Ota
We constructed novel artificial riboswitches that function in a eukaryotic translation system (wheat germ extract), by rationally implanting an in vitro-selected aptamer into the intergenic internal ribosome entry site (IRES) of Plautia stali intestine virus. These eukaryotic OFF-riboswitches (OFF-eRSs) ligand-dose-dependently downregulate IRES-mediated translation without hybridization switches, which typical riboswitches utilize for gene regulation. The hybridization-switch-free mechanism not only allows for easy design but also requires less energy for regulation, resulting in a higher switching efficiency than hybridization-switch-based OFF-eRSs provide...
June 14, 2017: ACS Synthetic Biology
https://www.readbyqxmd.com/read/28611766/establishment-and-application-of-a-high-throughput-screening-system-targeting-the-interaction-between-hcv-internal-ribosome-entry-site-and-human-eukaryotic-translation-initiation-factor-3
#12
Yuying Zhu, Pei Huang, Na Yang, Rui Liu, Xueting Liu, Huanqin Dai, Lixin Zhang, Fuhang Song, Chaomin Sun
Viruses are intracellular obligate parasites and the host cellular machinery is usually recruited for their replication. Human eukaryotic translation initiation factor 3 (eIF3) could be directly recruited by the hepatitis C virus (HCV) internal ribosome entry site (IRES) to promote the translation of viral proteins. In this study, we establish a fluorescence polarization (FP) based high throughput screening (HTS) system targeting the interaction between HCV IRES and eIF3. By screening a total of 894 compounds with this HTS system, two compounds (Mucl39526 and NP39) are found to disturb the interaction between HCV IRES and eIF3...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28601222/synthesis-function-and-heterogeneity-of-snorna-guided-posttranscriptional-nucleoside-modifications-in-eukaryotic-ribosomal-rnas
#13
Anthony K Henras, Célia Plisson-Chastang, Odile Humbert, Yves Romeo, Yves Henry
Ribosomal RNAs contain numerous 2'-O-methylated nucleosides and pseudouridines. Methylation of the 2' oxygen of ribose moieties and isomerization of uridines into pseudouridines are catalyzed by C/D and H/ACA small nucleolar ribonucleoprotein particles, respectively. We review the composition, structure, and mode of action of archaeal and eukaryotic C/D and H/ACA particles. Most rRNA modifications cluster in functionally crucial regions of the rRNAs, suggesting they play important roles in translation. Some of these modifications promote global translation efficiency or modulate translation fidelity...
2017: Enzymes
https://www.readbyqxmd.com/read/28599338/-effects-of-a-phone-based-follow-up-care-after-inpatient-rehabilitation-for-breast-cancer-patients-a-randomized-controlled-trial
#14
H G Hass, F Muthny, J Stepien, J Lerch, C von der Marwitz, R Schröck, D Berger, J Tripp
Background Benefit and long-term effects of rehabilitation and psychoeducational interventions after cancer therapy are still controversial discussed. Aim of the study was to evaluate feasibility and effects of a telephone-based follow-up intervention after oncological rehabilitation. Methods 172 breast cancer patients (age 27-54 years) were randomized after inpatient rehabilitation to a telephone-based intervention (phone calls every 4 weeks over 6 months) or control group. Patients were evaluated by standardized questionnaire (e...
June 2017: Die Rehabilitation
https://www.readbyqxmd.com/read/28598226/mtor-controls-genesis-and-autophagy-of-gabaergic-interneurons-during-brain-development
#15
Minhan Ka, Amanda L Smith, Woo-Yang Kim
Interneuron progenitors in the ganglionic eminence of the ventral telencephalon generate most cortical interneurons during brain development. However, the regulatory mechanism of interneuron progenitors remains poorly understood. Here, we show that MTOR (mechanistic target of rapamycin [serine/threonine kinase]) regulates proliferation and macroautophagy/autophagy of interneuron progenitors in the developing ventral telencephalon. To investigate the role of MTOR in interneuron progenitors, we conditionally deleted the Mtor gene in mouse interneuron progenitors and their progeny by using Tg(mI56i-cre,EGFP)1Kc/Dlx5/6-Cre-IRES-EGFP and Nkx2-1-Cre drivers...
June 9, 2017: Autophagy
https://www.readbyqxmd.com/read/28594449/predictive-therapeutic-planning-for-irreversible-electroporation-treatment-of-spontaneous-malignant-glioma
#16
Paulo A Garcia, Bor Kos, John H Rossmeisl, Denis Pavliha, Damijan Miklavčič, Rafael V Davalos
PURPOSE: Irreversible electroporation (IRE) have been developed as a promising minimally invasive treatment to ablate spontaneous brain tumors with pulsed electric fields in canine patients. The purpose of the study is to determine the Peleg-Fermi parameters needed to incorporate pulse number and pulse duration into the therapeutic planning of IRE. METHODS: Seven canine patients were treated with IRE for spontaneous malignant glioma with MRI based treatment planning...
June 8, 2017: Medical Physics
https://www.readbyqxmd.com/read/28592067/-combination-of-pp242-and-dasatinib-suppresses-the-progression-of-acute-myeloid-leukemia-in-a-mouse-model
#17
Y H Qu, H T Liu, F C He
Objective: To establish the acute myeloid leukemia (AML) mouse model, and to preliminarily investigate the efficiency of dasatinib, a tryosine kinase inhibitor, and PP242, an inhibitor of PI3K/Akt/mTOR signaling pathway in the development of AML. Methods: The lineage(-) (Lin(-)) cells of C57BL/6J were transduced with retrovirus carrying MSCV-MLL-AF9-IRES-GFP fusion gene. The transduced cells were transplanted into lethally irradiated recipient mice to induce AML, and then the AML mouse model were established...
May 30, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28586250/pain-after-percutaneous-irreversible-electroporation-of-renal-tumors-is-not-dependent-on-tumor-location
#18
Igor Sorokin, Aaron H Lay, Nikitha K Reddy, Noah E Canvasser, Murthy Chamarthy, Jeffrey A Cadeddu
Introduction Irreversible electroporation (IRE) is a non-thermal minimally invasive technique to treat small renal masses (SRM). Prior work has demonstrated greater narcotic requirements after radiofrequency ablation (RFA) for tumors closer to body-wall musculature. We hypothesized that pain after IRE is not dependent on tumor location due to the athermal mechanistic action. Methods Retrospective review of 50 consecutive percutaneous IRE and RFA cases was performed from 2013 to 2014. Eight patients were excluded from analysis due to incomplete anesthesia record and/or multiple ablations per session leaving 21 patients in each group...
June 6, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28585894/attenuated-total-reflection-surface-enhanced-infrared-absorption-atr-seira-spectroscopy-for-the-analysis-of-fatty-acids-on-silver-nanoparticles
#19
Yuichi Kato, Masashi Kikugawa, Eiichi Sudo
The application of attenuated total reflection surface-enhanced infrared absorption spectroscopy (ATR SEIRA) to the analysis of fatty acids on silver nanoparticles was investigated. Attenuated total reflection measurements using four types of internal reflection elements (IREs)-zinc selenide, diamond, silicon, and germanium-were performed for silver nanoparticles modified with fatty acids, and germanium IRE was shown to be suitable for the analysis of silver nanoparticles, even when the sample had a high refractive index...
January 1, 2017: Applied Spectroscopy
https://www.readbyqxmd.com/read/28583862/recovery-of-glomerular-morphology-in-the-olfactory-bulb-of-young-mice-after-disruption-caused-by-continuous-odorant-exposure
#20
Fernanda Monjaraz-Fuentes, Diana Millán-Adalco, Marcela Palomero-Rivero, Robyn Hudson, René Drucker-Colín
Olfactory glomeruli are the first synaptic site of the olfactory system and are formed by the convergence of axons of the same type of sensory neurons onto the olfactory bulbs of the brain. Although the anatomical organization of glomeruli is conserved across species, their particular role in olfactory processing remains uncertain. We studied the composition and maintenance of glomeruli by means of a genetic model, mI7-IRES-tauGFP knock-in young mice, where the cytoskeleton of sensory neurons expressing the mI7 olfactory receptor is tagged with green fluorescent protein...
June 2, 2017: Brain Research
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