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https://www.readbyqxmd.com/read/28214985/melatonin-alleviates-the-epilepsy-associated-impairments-in-hippocampal-ltp-and-spatial-learning-through-rescue-of-surface-glur2-expression-at-hippocampal-ca1-synapses
#1
Yue Ma, Xiaolong Sun, Juan Li, Ruihua Jia, Fang Yuan, Dong Wei, Wen Jiang
Epilepsy-associated cognitive impairment is common, and negatively impacts patients' quality of life. However, most antiepileptic drugs focus on the suppression of seizures, and fewer emphasize treatment of cognitive dysfunction. Melatonin, an indolamine synthesized primarily in the pineal grand, is reported to be neuroprotective against several central nervous system disorders. In this study, we investigated whether melatonin could reverse cognitive dysfunction in lithium-pilocarpine treated rats. Chronic treatment with melatonin (8 mg/kg daily for 15 days) after induction of status epilepticus significantly alleviated seizure severity, reduced neuronal death in the CA1 region of the hippocampus, improved spatial learning (as measured by the Morris water maze test), and reversed LTP impairments, compared to vehicle treatment...
February 18, 2017: Neurochemical Research
https://www.readbyqxmd.com/read/28214929/myeloid-cells-as-a-target-for-oligonucleotide-therapeutics-turning-obstacles-into-opportunities
#2
REVIEW
Marcin Kortylewski, Dayson Moreira
Immunotherapies emerged as an alternative for cancer treatment, yet their clinical efficacies are still limited, especially in case of solid tumors. Myeloid immune cells, such as macrophages and myeloid-derived suppressor cells (MDSCs), are often hijacked by tumors and become pivotal inhibitors of antitumor immunity. Immunosuppressive functions of tumor-associated myeloid cells result from the activity of Signal Transducer and Activator of Transcription 3 (STAT3), a transcription factor with well-defined tumorigenic and tolerogenic roles in human cancers...
February 18, 2017: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/28214878/mirna-26a-contributes-to-the-acquisition-of-malignant-behaviors-of-doctaxel-resistant-lung-adenocarcinoma-cells-through-targeting-ezh2
#3
Jing Chen, Yuejuan Xu, Leilei Tao, Yan Pan, Kai Zhang, Rui Wang, Long-Bang Chen, Xiaoyuan Chu
BACKGROUND/AIMS: Accumulating evidence revealed that microRNAs (miRNAs) have been demonstrated as critical molecules in tumor development and progression. MiR-26a, located in a fragile chromosomal region associated with various human cancer, has been reported to be involved in regulating various cellular process, such as proliferation, apoptosis and invasion through targeting multiple oncogene. Docetaxel-mediated chemotherapy has been applied in improving the survival and prognosis of patients with advanced lung adenocarcinoma (LAD)...
February 3, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28214850/olive-oil-supplemented-lipid-emulsion-induces-celf1-expression-and-promotes-apoptosis-in-caco-2-cells
#4
Jun-Kai Yan, Jie Zhu, Zi-Zhen Gong, Jie Wen, Yong-Tao Xiao, Wei Cai, Tian Zhang
BACKGROUND AND AIMS: Parenterally-administered lipid emulsion (LE) is a key cause of enterocyte apoptosis under total parenteral nutrition, yet the pathogenesis has not been fully understood. CUGBP, Elav-like family member 1 (CELF1) has been recently identified as a crucial modulator of apoptosis, and thus this study sought to investigate its role in the LE-induced apoptosis in vitro. METHODS: Caco-2 cells were used as an in vitro model. The cells were treated with varying LEs derived from soybean oil, olive oil or fish oil, and changes in the apoptosis and CELF1 expression were assessed...
February 8, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28214660/enhancer-of-zeste-homologue-2-plays-an-important-role-in-neuroblastoma-cell-survival-independent-of-its-histone-methyltransferase-activity
#5
Laurel T Bate-Eya, Hinco J Gierman, Marli E Ebus, Jan Koster, Huib N Caron, Rogier Versteeg, M Emmy M Dolman, Jan J Molenaar
Neuroblastoma is predominantly characterised by chromosomal rearrangements. Next to V-Myc Avian Myelocytomatosis Viral Oncogene Neuroblastoma Derived Homolog (MYCN) amplification, chromosome 7 and 17q gains are frequently observed. We identified a neuroblastoma patient with a regional 7q36 gain, encompassing the enhancer of zeste homologue 2 (EZH2) gene. EZH2 is the histone methyltransferase of lysine 27 of histone H3 (H3K27me3) that forms the catalytic subunit of the polycomb repressive complex 2. H3K27me3 is commonly associated with the silencing of genes involved in cellular processes such as cell cycle regulation, cellular differentiation and cancer...
February 16, 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/28214539/lumbee-traditional-medicine-neuroprotective-activities-of-medicinal-plants-used-to-treat-parkinson-s-disease-related-symptoms
#6
Aurélie de Rus Jacquet, Michael Timmers, Sin Ying Ma, Andrew Thieme, George P McCabe, Jay Hansford C Vest, Mary Ann Lila, Jean-Christophe Rochet
ETHNOPHARMACOLOGICAL RELEVANCE: Parkinson's disease (PD) is a neurodegenerative disorder characterized by a loss of dopaminergic neurons in the substantia nigra pars compacta and the presence in surviving neurons of Lewy body inclusions enriched with aggregated forms of the presynaptic protein α-synuclein (aSyn). Although current therapies provide temporary symptomatic relief, they do not slow the underlying neurodegeneration in the midbrain. In this study, we analyzed contemporary herbal medicinal practices used by members of the Lumbee tribe to treat PD-related symptoms, in an effort to identify safe and effective herbal medicines to treat PD...
February 15, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28214377/reciprocal-translocation-of-small-numbers-of-inbred-individuals-rescues-immunogenetic-diversity
#7
Catherine E Grueber, Jolene T Sutton, Sol Heber, James V Briskie, Ian G Jamieson, Bruce C Robertson
Genetic rescue can reduce inbreeding depression and increase fitness of small populations, even when the donor populations are highly inbred. In a recent experiment involving two inbred island populations of the South Island robin, Petroica australis, reciprocal translocations improved microsatellite diversity and individual fitness. While microsatellite loci may reflect patterns of genome-wide diversity, they generally do not indicate the specific genetic regions responsible for increased fitness. We tested the effectiveness of this reciprocal translocation for rescuing diversity of two immunogenetic regions: toll-like receptor (TLR) and major histocompatibility complex (MHC) genes...
February 18, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28214220/comparison-of-the-hanging-drop-technique-and-running-drip-method-for-identifying-the-epidural-space-in-dogs
#8
Fernando Martinez-Taboada, José I Redondo
OBJECTIVE: To compare the running-drip and hanging-drop techniques for locating the epidural space in dogs. STUDY DESIGN: Prospective, randomized, clinical trial. ANIMALS: Forty-five healthy dogs requiring epidural anaesthesia. METHODS: Dogs were randomized into four groups and administered epidural anaesthesia in sternal (S) or lateral (L) recumbency. All blocks were performed by the same person using Tuohy needles with either a fluid-prefilled hub (HDo) or connected to a drip set attached to a fluid bag elevated 60 cm (RDi)...
January 8, 2017: Veterinary Anaesthesia and Analgesia
https://www.readbyqxmd.com/read/28213849/widespread-expression-of-a-membrane-tethered-version-of-the-soluble-lysosomal-enzyme-palmitoyl-protein-thioesterase-1
#9
Charles Shyng, Shannon L Macauley, Joshua T Dearborn, Mark S Sands
"Cross-correction," the transfer of soluble lysosomal enzymes between neighboring cells, forms the foundation for therapeutics of lysosomal storage disorders (LSDs). However, "cross-correction" poses a significant barrier to studying the role of specific cell types in LSD pathogenesis. By expressing the native enzyme in only one cell type, neighboring cell types are invariably corrected. In this study, we present a strategy to limit "cross-correction" of palmitoyl-protein thioesterase-1(PPT1), a lysosomal hydrolase deficient in Infantile Neuronal Ceroid Lipofuscinosis (INCL, Infantile Batten disease) to the lysosomal membrane via the C-terminus of lysosomal associated membrane protein-1 (LAMP1)...
February 18, 2017: JIMD Reports
https://www.readbyqxmd.com/read/28213817/breakthrough-cancer-pain-and-rational-drug-use
#10
Juan Manuel Núñez Olarte
Recent data indicate that there are large disparities in the use of opioid analgesics to control breakthrough cancer pain (BTcP) in Europe and worldwide. While it is clear that affordability is a key factor, it is certainly not the only one, and other factors, such as cultural differences and overall awareness, are undoubtedly responsible. More work remains to be done to overcome barriers in the use of these medications when warranted. When prescribing a medication for BTcP, it must be considered that its time profile is different from chronic persistent pain...
February 18, 2017: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/28213593/randomised-double-blind-parallel-group-placebo-controlled-study-to-evaluate-the-analgesic-efficacy-and-safety-of-vvz-149-injections-for-postoperative-pain-following-laparoscopic-colorectal-surgery
#11
Srdjan S Nedeljkovic, Darin J Correll, Xiaodong Bao, Natacha Zamor, Jose L Zeballos, Yi Zhang, Mark J Young, Johanna Ledley, Jessica Sorace, Kristen Eng, Carlyle P Hamsher, Rajivan Maniam, Jonathan W Chin, Becky Tsui, Sunyoung Cho, Doo H Lee
INTRODUCTION: In spite of advances in understanding and technology, postoperative pain remains poorly treated for a significant number of patients. In colorectal surgery, the need for developing novel analgesics is especially important. Patients after bowel surgery are assessed for rapid return of bowel function and opioids worsen ileus, nausea and constipation. We describe a prospective, double-blind, parallel group, placebo-controlled randomised controlled trial testing the hypothesis that a novel analgesic drug, VVZ -149, is safe and effective in improving pain compared with providing opioid analgesia alone among adults undergoing laparoscopic colorectal surgery...
February 17, 2017: BMJ Open
https://www.readbyqxmd.com/read/28213565/anti-tnf-induced-remission-in-very-early-peripheral-spondyloarthritis-the-crespa-study
#12
Philippe Carron, Gaëlle Varkas, Heleen Cypers, Liesbet Van Praet, Dirk Elewaut, Filip Van den Bosch
OBJECTIVE: To evaluate the efficacy and safety of golimumab to induce clinical remission in patients with very early, active peripheral spondyloarthritis (pSpA). METHODS: Clinical REmission in peripheral SPondyloArthritis is a monocentric study of golimumab treatment in patients with pSpA. All patients fulfilled the Assessment of SpondyloArthritis international Society classification criteria for pSpA, with a symptom duration ≤12 weeks. Patients were randomised 2:1 to receive golimumab 50 mg every 4 weeks or matching placebo for 24 weeks...
February 17, 2017: Annals of the Rheumatic Diseases
https://www.readbyqxmd.com/read/28213559/an-organelle-rna-recognition-motif-protein-is-required-for-photosynthetic-subunit-psbf-transcript-editing
#13
Justin B Hackett, Xiaowen Shi, Amy T Kobylarz, Meriah K Lucas, Ryan L Wessendorf, Kevin M Hines, Stephane Bentolila, Maureen Hanson, Yan Lu
Loss-of-function mutations in Organelle RNA Recognition Motif Protein 6 (ORRM6) result in near absence of RNA editing of psbF-C77 and reduction in accD-C794 editing in Arabidopsis (Arabidopsis thaliana). The orrm6 mutants have decreased levels of PSII proteins, especially PsbF, lower PSII activity, pale green pigmentation, smaller leaf and plant sizes, and retarded growth. Stable expression of ORRM6 rescues orrm6 editing defects and mutant phenotype. Unlike ORRM1, the other known ORRM plastid editing factor, ORRM6 does not contain RNA editing interacting protein/multiple organellar RNA editing factor (RIP/MORF) boxes, which are required for ORRM1 to interact with site-specific pentatricopeptide repeat (PPR) protein editing factors...
February 17, 2017: Plant Physiology
https://www.readbyqxmd.com/read/28213524/g-protein-coupled-receptor-kinase-2-grk-2-regulates-serotonin-metabolism-through-the-monoamine-oxidase-amx-2-in-caenorhabditis-elegans
#14
Jianjun Wang, Jiansong Luo, Dipendra K Aryal, William C Wetzel, Richard Nass, Jeffrey L Benovic
G protein-coupled receptors (GPCRs) regulate many animal behaviors. GPCR signaling is mediated by agonist-promoted interactions of GPCRs with heterotrimeric G proteins, GPCR kinases (GRKs) and arrestins. To further elucidate the role of GRKs in regulating GPCR-mediated behaviors, we utilized the genetic model system Caenorhabditis elegans. Our studies demonstrate that grk-2 loss-of-function strains are egg-laying defective and contain low levels of serotonin (5-HT) and high levels of the 5-HT metabolite 5-hydroxyindole acetic acid (5-HIAA)...
February 17, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28213519/an-extra-amino-acid-residue-in-transmembrane-domain-10-of-the-gaba-transporter-gat-1-is-required-for-efficient-ion-coupled-transport
#15
Oshrat Dayan, Anu Nagarajan, Raven Shah, Assaf Ben-Yona, Lucy R Forrest, Baruch I Kanner
The GABA transporter GAT-1 mediates electrogenic transport of its substrate together with sodium and chloride. It is a member of the neurotransmitter:sodium:symporters, which are crucial for synaptic transmission. Compared to all other neurotransmitter:sodium:symporters, GAT-1 and the other members of the GABA transporter subfamily, all contain an extra amino acid residue at or near a conserved glycine in transmembrane segment 10. Therefore, we studied the functional impact of deletion and replacement mutants of Gly-457, and its two adjacent residues in GAT-1...
February 17, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28213518/deficits-in-the-activity-of-presynaptic-%C3%AE-aminobutyric-acid-type-b-receptors-contribute-to-altered-neuronal-excitability-in-fragile-x-syndrome
#16
Ji-Yong Kang, Jayashree Chadchankar, Thuy N Vien, Michelle I Mighdoll, Thomas M Hyde, Robert J Mather, Tarek Z Deeb, Menelas N Pangalos, Nicholas J Brandon, John Dunlop, Stephen J Moss
The behavioral and anatomical deficits seen in Fragile X syndrome (FXS) are widely believed to result from imbalances in the relative strengths of excitatory and inhibitory neurotransmission. While modified neuronal excitability is thought to be of significance, the contribution that alterations in GABAergic inhibition play in the pathophysiology of FXS are ill-defined. Slow sustained neuronal inhibition is mediated by γ-aminobutyric acid type B (GABAB) receptors, which are heterodimeric G-protein coupled receptors constructed from R1a and R2 or R1b and R2 subunits...
February 17, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28213477/soft-selective-sweeps-in-evolutionary-rescue
#17
Benjamin A Wilson, Pleuni S Pennings, Dmitri A Petrov
Evolutionary rescue occurs when a population that is declining in size because of an environmental change is rescued from extinction by genetic adaptation. Evolutionary rescue is an important phenomenon at the intersection of ecology and population genetics, and the study of evolutionary rescue is critical to understanding processes ranging from species conservation to the evolution of drug and pesticide resistance. While most population genetic models of evolutionary rescue focus on estimating the probability of rescue, we focus on whether one or more adaptive lineages contribute to evolutionary rescue...
February 17, 2017: Genetics
https://www.readbyqxmd.com/read/28213379/slowed-decay-of-mrnas-enhances-platelet-specific-translation
#18
Eric W Mills, Rachel Green, Nicholas T Ingolia
Platelets are anucleate cytoplasmic fragments that lack genomic DNA, but continue to synthesize protein using a pool of mRNAs, ribosomes, and regulatory small RNAs inherited from the precursor megakaryocyte (MK). The regulatory processes that shape the platelet transcriptome and the full scope of platelet translation have remained elusive. Using RNA-Seq and ribosome profiling of primary human platelets, we show the platelet transcriptome encompasses a subset of transcripts detected by RNA-Seq analysis of in vitro derived MK cells and these platelet-enriched transcripts are broadly occupied by ribosomes...
February 17, 2017: Blood
https://www.readbyqxmd.com/read/28213357/greater-nurse-autonomy-associated-with-lower-mortality-and-failure-to-rescue-rates
#19
Catharina van Oostveen, Hester Vermeulen
No abstract text is available yet for this article.
February 17, 2017: Evidence-based Nursing
https://www.readbyqxmd.com/read/28212954/evaluation-of-copd-treatments-a-multicriteria-decision-analysis-of-aclidinium-and-tiotropium-in-the-united-states
#20
Kevin Marsh, Erica Zaiser, Panagiotis Orfanos, Suzanne Salverda, Teresa Wilcox, Shawn Sun, Shailja Dixit
BACKGROUND: Comparisons of the use of aclidinium bromide and tiotropium bromide for the treatment of chronic obstructive pulmonary disease often concentrate on key end points (exacerbations) at the expense of other benefits and risks. Multicriteria decision analysis (MCDA) can help overcome this by using stakeholder preferences to combine multiple end points into an overall value estimate. OBJECTIVES: To evaluate the use of aclidinium bromide twice daily via Pressair™ (AstraZeneca Pharmaceuticals LP, Wilmington, DE) and of tiotropium once daily via HandiHaler(®) (Boehringer Ingelheim Pharmaceuticals, Inc...
January 2017: Value in Health: the Journal of the International Society for Pharmacoeconomics and Outcomes Research
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